:root {
  color-scheme: dark;
  --ink: #f2eee5;
  --muted: #9c9d94;
  --line: #32342f;
  --surface: #181a17;
  --surface-raised: #20221e;
  --accent: #d8ff63;
  --accent-deep: #a6cf34;
  --danger: #ff8b7f;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-synthesis: none;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 78% 12%, rgba(216, 255, 99, 0.075), transparent 27rem),
    #10110f;
  color: var(--ink);
}

button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }

.shell {
  width: min(1400px, calc(100% - 48px));
  min-height: 100vh;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
}

.masthead {
  height: 86px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

.masthead-actions { display: flex; align-items: center; gap: 18px; }

.desktop-navigation-items { display: contents; }

.masthead-nav {
  display: flex;
  align-items: center;
  gap: 22px;
}

.masthead-link {
  position: relative;
  color: var(--muted);
  text-decoration: none;
  white-space: nowrap;
  transition: color 160ms ease;
}

.masthead-link:hover,
.masthead-link[aria-current="page"] { color: var(--ink); }

.masthead-link[aria-current="page"]::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -9px;
  left: 0;
  height: 1px;
  background: var(--accent);
}

.mobile-menu-toggle {
  width: 44px;
  height: 44px;
  padding: 11px 10px;
  display: none;
  align-content: center;
  gap: 5px;
  border: 1px solid #50534b;
  border-radius: 50%;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
}

.mobile-menu-toggle span {
  width: 100%;
  height: 1px;
  display: block;
  background: currentColor;
  transition: transform 180ms ease;
}

.mobile-menu-toggle:hover { border-color: var(--accent); color: var(--accent); }

.mobile-navigation {
  position: fixed;
  z-index: 40;
  inset: 0;
  width: 100%;
  min-height: 100vh;
  min-height: 100dvh;
  display: none;
  overflow-y: auto;
  visibility: hidden;
  background:
    radial-gradient(circle at 80% 10%, rgba(216, 255, 99, 0.1), transparent 22rem),
    #10110f;
  opacity: 0;
  pointer-events: none;
  transition: opacity 220ms ease;
}

.mobile-navigation.is-open {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}

.mobile-navigation-surface {
  width: min(100% - 30px, 620px);
  min-height: 100vh;
  min-height: 100dvh;
  margin: 0 auto;
  transform: translateX(24px);
  transition: transform 240ms ease;
}

.mobile-navigation.is-open .mobile-navigation-surface { transform: translateX(0); }

.mobile-navigation-header {
  height: 86px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--line);
}

.mobile-navigation-header h2 {
  margin: 0;
  color: var(--muted);
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.mobile-menu-close {
  position: relative;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid #50534b;
  border-radius: 50%;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
}

.mobile-menu-close span {
  position: absolute;
  top: 50%;
  left: 11px;
  width: 20px;
  height: 1px;
  background: currentColor;
}

.mobile-menu-close span:first-child { transform: rotate(45deg); }
.mobile-menu-close span:last-child { transform: rotate(-45deg); }
.mobile-menu-close:hover { border-color: var(--accent); color: var(--accent); }

.mobile-navigation-menu { padding: clamp(42px, 10vh, 92px) 0 48px; }
.mobile-navigation-items { display: flex; flex-direction: column; }

.mobile-navigation-item {
  width: 100%;
  min-height: 76px;
  padding: 18px 4px;
  display: flex;
  align-items: center;
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  text-align: left;
  text-decoration: none;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(27px, 9vw, 42px);
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 1.05;
  transition: color 160ms ease, padding-left 160ms ease;
}

.mobile-navigation-item:hover,
.mobile-navigation-item[aria-current="page"] {
  padding-left: 12px;
  color: var(--accent);
}

body.mobile-navigation-open { overflow: hidden; }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.language-selector {
  position: relative;
  display: block;
}

.language-selector::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 16px;
  width: 7px;
  height: 7px;
  border-right: 1.5px solid var(--ink);
  border-bottom: 1.5px solid var(--ink);
  pointer-events: none;
  transform: translateY(-70%) rotate(45deg);
}

.language-selector select {
  appearance: none;
  -webkit-appearance: none;
  min-width: 104px;
  padding: 8px 42px 8px 12px;
  border: 1px solid #50534b;
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  font-size: 11px;
  font-weight: 700;
}

.language-selector select:hover { border-color: var(--accent); }

.install-button {
  padding: 9px 15px;
  border: 1px solid #50534b;
  border-radius: 999px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.install-button:hover { border-color: var(--accent); color: var(--accent); }
.install-button:disabled { cursor: wait; opacity: 0.5; }

.account-summary {
  display: flex;
  align-items: center;
  gap: 9px;
  padding-left: 20px;
  border-left: 1px solid var(--line);
}

.account-navigation-identity {
  min-width: 0;
  padding: 0;
  display: flex;
  align-items: center;
  gap: 9px;
  border: 0;
  background: transparent;
  cursor: pointer;
}

.account-navigation-identity:hover .account-navigation-name { color: var(--accent); }
.account-navigation-identity:disabled { cursor: default; }

.account-avatar {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  overflow: hidden;
  border: 1px solid #50534b;
  border-radius: 50%;
  background: var(--surface-raised);
  color: var(--accent);
  object-fit: cover;
  font-weight: 750;
}

.account-avatar-navigation { width: 30px; height: 30px; font-size: 11px; }
.account-navigation-name {
  max-width: 130px;
  overflow: hidden;
  color: var(--ink);
  font-size: 11px;
  font-weight: 700;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.account-navigation-action,
.account-primary-action,
.account-sign-out {
  padding: 9px 15px;
  border: 1px solid #50534b;
  border-radius: 999px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  font-size: 11px;
  font-weight: 700;
}

.account-navigation-action:hover,
.account-sign-out:hover { border-color: var(--accent); color: var(--accent); }
.account-navigation-action:disabled,
.account-primary-action:disabled,
.account-sign-out:disabled { cursor: wait; opacity: 0.5; }
.account-primary-action { border-color: var(--accent); background: var(--accent); color: #161812; }
.account-primary-action:hover { background: #e3ff8b; }

.install-button[hidden],
[data-install-action][hidden],
.account-navigation-identity[hidden],
.account-navigation-action[hidden],
.account-avatar[hidden],
.account-guest-panel[hidden],
.account-details[hidden],
.profile-privacy[hidden],
.account-sign-out[hidden],
.account-error[hidden],
.pwa-install-hint[hidden],
.pwa-install-status[hidden] { display: none; }

.pwa-install-hint {
  position: fixed;
  z-index: 20;
  top: 96px;
  right: max(24px, env(safe-area-inset-right));
  width: min(360px, calc(100% - 48px));
  padding: 18px 20px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  border: 1px solid #4a4d46;
  border-radius: 4px;
  background: var(--surface-raised);
  box-shadow: 0 20px 55px rgba(0, 0, 0, 0.4);
}

.pwa-install-hint strong { font-size: 14px; }
.pwa-install-hint p { margin: 6px 0 0; color: var(--muted); font-size: 13px; line-height: 1.5; }
.pwa-install-hint ol {
  margin: 10px 0 0;
  padding-left: 20px;
  color: var(--ink);
  font-size: 13px;
  line-height: 1.6;
}
.pwa-install-hint button {
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 24px;
  line-height: 1;
}
.pwa-install-hint button:hover { color: var(--ink); }

.pwa-install-status {
  position: fixed;
  z-index: 21;
  right: max(24px, env(safe-area-inset-right));
  bottom: max(24px, env(safe-area-inset-bottom));
  width: min(360px, calc(100% - 48px));
  margin: 0;
  padding: 14px 18px;
  border: 1px solid var(--accent-deep);
  border-radius: 4px;
  background: var(--surface-raised);
  color: var(--accent);
  box-shadow: 0 20px 55px rgba(0, 0, 0, 0.4);
  font-size: 13px;
  font-weight: 700;
  line-height: 1.5;
}

.pwa-install-status.is-error {
  border-color: var(--danger);
  color: var(--danger);
}

.brand {
  display: inline-flex;
  align-items: center;
  color: var(--ink);
  text-decoration: none;
}

.brand-logo { width: 120px; height: auto; display: block; }

.masthead-link, footer, .eyebrow, dt {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 11px;
  font-weight: 650;
}

.home[hidden],
.authentication-page[hidden],
.onboarding-page[hidden],
.about[hidden],
.contact[hidden],
.leaderboard[hidden],
.account-page[hidden],
.dashboard[hidden],
.settings-page[hidden],
.legal-page[hidden],
.trainer[hidden],
.match-pitch[hidden],
.drone-exercise[hidden],
.harmonic-tuning[hidden],
.exercise-placeholder[hidden] { display: none; }

.home {
  flex: 1;
  padding: clamp(64px, 10vh, 120px) 0 72px;
}

.authentication-page,
.onboarding-page {
  flex: 1;
  padding: clamp(54px, 8vh, 92px) 0 80px;
  display: grid;
  place-items: start center;
}

.authentication-card,
.onboarding-card {
  width: min(100%, 590px);
  padding: clamp(30px, 5vw, 54px);
  border: 1px solid var(--line);
  border-radius: 4px;
  background: linear-gradient(145deg, rgba(32, 34, 30, 0.96), rgba(24, 26, 23, 0.96));
}

.authentication-logo { width: 168px; height: auto; display: block; margin-bottom: 34px; }
.authentication-card h1 {
  max-width: 470px;
  margin: 0;
  font-size: clamp(28px, 4vw, 38px);
  font-weight: 600;
  letter-spacing: -0.025em;
  line-height: 1.15;
}
.onboarding-card h1 {
  margin: 18px 0 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(44px, 6vw, 68px);
  font-weight: 400;
  letter-spacing: -0.05em;
  line-height: 0.95;
}
.onboarding-description {
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.65;
}
.authentication-providers { margin-top: 34px; display: grid; gap: 12px; }
.oauth-button {
  width: 100%;
  min-height: 54px;
  padding: 12px 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  border: 1px solid transparent;
  border-radius: 4px;
  cursor: pointer;
  font: inherit;
  font-size: 15px;
  font-weight: 650;
  transition: opacity 160ms ease, transform 160ms ease;
}
.oauth-button-google {
  border-color: #747775;
  background: #fff;
  color: #1f1f1f;
  font-size: 14px;
}
.oauth-button-apple { border-color: #fff; background: #000; color: #fff; }
.oauth-button[hidden] { display: none; }
.oauth-provider-logo { width: 18px; height: auto; flex: 0 0 auto; }
.oauth-button:not(:disabled):hover { opacity: 0.9; transform: translateY(-1px); }
.oauth-button:disabled { cursor: wait; opacity: 0.5; }
.authentication-status,
.onboarding-status,
.profile-privacy-status {
  min-height: 20px;
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}
.authentication-status,
.onboarding-status.is-error,
.profile-privacy-status.is-error { color: var(--danger); }
.authentication-privacy-note {
  margin: 24px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
}
.authentication-privacy-note a,
.consent-option a { color: var(--ink); }
.authentication-privacy-note a:hover,
.consent-option a:hover { color: var(--accent); }

#onboarding-form { margin-top: 36px; }
.consent-option {
  padding: 18px 0;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: 14px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  cursor: pointer;
  font-size: 14px;
  line-height: 1.65;
}
.consent-option input { width: 19px; height: 19px; margin: 2px 0 0; accent-color: var(--accent); }
.consent-option-required { color: var(--ink); }
.onboarding-submit {
  width: 100%;
  min-height: 52px;
  margin-top: 16px;
  border: 0;
  border-radius: 999px;
  background: var(--accent);
  color: #161812;
  cursor: pointer;
  font: inherit;
  font-size: 14px;
  font-weight: 750;
}
.onboarding-submit:disabled { cursor: not-allowed; opacity: 0.35; }
.onboarding-retry { min-height: 44px; margin-top: 12px; }

.about,
.contact {
  flex: 1;
  padding: clamp(64px, 9vh, 110px) 0 80px;
}

.account-page {
  flex: 1;
  padding: clamp(64px, 9vh, 110px) 0 80px;
}

.account-heading { margin-bottom: clamp(42px, 6vh, 64px); }
.account-heading h1 {
  margin: 20px 0 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(54px, 7vw, 94px);
  font-weight: 400;
  letter-spacing: -0.055em;
  line-height: 0.92;
}

.account-card {
  width: min(100%, 720px);
  padding: clamp(28px, 5vw, 52px);
  border: 1px solid var(--line);
  border-radius: 4px;
  background: linear-gradient(145deg, rgba(32, 34, 30, 0.94), rgba(24, 26, 23, 0.94));
}

.account-profile { display: flex; align-items: center; gap: 20px; }
.account-avatar-page { width: 72px; height: 72px; font-size: 25px; }
.account-profile h2 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 400;
  letter-spacing: -0.035em;
}

.account-guest-panel {
  margin-top: 34px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}
.account-guest-panel p {
  max-width: 520px;
  margin: 0 0 24px;
  color: var(--muted);
  line-height: 1.65;
}

.account-details {
  margin: 36px 0 0;
  display: grid;
  border-top: 1px solid var(--line);
}
.account-details div {
  padding: 20px 0;
  display: grid;
  grid-template-columns: minmax(130px, 0.45fr) 1fr;
  gap: 22px;
  border-bottom: 1px solid var(--line);
}
.account-details dt { margin: 0; }
.account-details dd { overflow-wrap: anywhere; font-size: 16px; }
.profile-privacy {
  margin-top: 42px;
  padding-top: 34px;
  border-top: 1px solid var(--line);
}
.profile-privacy-copy h2 {
  margin: 10px 0 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(25px, 3vw, 34px);
  font-weight: 400;
  letter-spacing: -0.035em;
}
.profile-privacy-copy > p:last-child {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}
.profile-provider-details {
  margin: 26px 0 0;
  border-top: 1px solid var(--line);
}
.profile-provider-details div {
  padding: 20px 0;
  display: grid;
  grid-template-columns: minmax(130px, 0.45fr) 1fr;
  gap: 22px;
  border-bottom: 1px solid var(--line);
}
.profile-provider-details dd { overflow-wrap: anywhere; font-size: 16px; }
.profile-marketing-option {
  margin-top: 26px;
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
  font-size: 14px;
  line-height: 1.45;
}
.profile-privacy-status:not(.is-error) { color: var(--accent-deep); }
.account-sign-out { margin-top: 32px; }
.account-error {
  margin: 26px 0 0;
  color: var(--danger);
  font-size: 13px;
  line-height: 1.5;
}

.dashboard {
  flex: 1;
  padding: clamp(54px, 8vh, 94px) 0 80px;
}

.dashboard-user-header {
  padding-bottom: clamp(42px, 6vh, 68px);
  border-bottom: 1px solid var(--line);
}

.dashboard-user-identity {
  display: flex;
  align-items: center;
  gap: clamp(22px, 4vw, 38px);
}

.dashboard-avatar {
  width: clamp(84px, 10vw, 118px);
  height: clamp(84px, 10vw, 118px);
  font-size: clamp(28px, 4vw, 40px);
}

.dashboard-user-identity h1 {
  margin: 12px 0 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(48px, 7vw, 88px);
  font-weight: 400;
  letter-spacing: -0.055em;
  line-height: 0.92;
}

.dashboard-user-actions {
  margin-top: 26px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.dashboard-user-actions a {
  padding: 9px 15px;
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  border: 1px solid #50534b;
  border-radius: 999px;
  color: var(--ink);
  text-decoration: none;
  font-size: 11px;
  font-weight: 700;
}

.dashboard-user-actions a:hover { border-color: var(--accent); color: var(--accent); }
.dashboard-user-actions small,
.dashboard-view-mode small {
  color: var(--muted);
  font-size: 8px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.dashboard-loading,
.dashboard-error {
  margin: 30px 0 0;
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--muted);
  font-size: 13px;
}

.dashboard-error { border-color: var(--danger); color: var(--danger); }
.dashboard-loading[hidden],
.dashboard-error[hidden],
.dashboard-table-wrap[hidden],
.dashboard-chart-panel[hidden],
.dashboard-chart-frame[hidden],
.dashboard-chart-empty[hidden],
.dashboard-history-empty[hidden] { display: none; }

.dashboard-section { padding-top: clamp(52px, 7vh, 78px); }
.dashboard-section-heading h2 {
  margin: 12px 0 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(34px, 4.5vw, 54px);
  font-weight: 400;
  letter-spacing: -0.045em;
}

.dashboard-best-grid {
  margin-top: 30px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1px;
  border: 1px solid var(--line);
  background: var(--line);
}

.dashboard-best-card { padding: 28px; background: var(--surface); }
.dashboard-best-card h3 {
  min-height: 48px;
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(22px, 2.6vw, 31px);
  font-weight: 400;
  letter-spacing: -0.035em;
}
.dashboard-best-card p {
  margin: 26px 0 8px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 10px;
  font-weight: 650;
}
.dashboard-best-card strong {
  color: var(--accent);
  font-size: clamp(30px, 4vw, 46px);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.dashboard-best-card strong small {
  color: var(--muted);
  font-size: 12px;
  font-weight: 500;
}

.dashboard-history-heading {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
}

.dashboard-view-modes { display: flex; gap: 8px; }
.dashboard-view-mode,
.dashboard-history-tab {
  padding: 10px 16px;
  border: 1px solid #50534b;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 11px;
  font-weight: 700;
}
.dashboard-view-mode { display: inline-flex; align-items: baseline; gap: 8px; }
.dashboard-view-mode.is-active,
.dashboard-history-tab.is-active { border-color: var(--accent); color: var(--ink); }
.dashboard-view-mode:disabled { cursor: not-allowed; opacity: 0.55; }

.dashboard-history-tabs {
  margin-top: 34px;
  padding-bottom: 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  border-bottom: 1px solid var(--line);
}

.dashboard-table-wrap { overflow-x: auto; }
.dashboard-table { width: 100%; border-collapse: collapse; }
.dashboard-table th,
.dashboard-table td { padding: 18px 16px; border-bottom: 1px solid var(--line); text-align: left; }
.dashboard-table th {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 10px;
  font-weight: 650;
}
.dashboard-table td { font-size: 15px; font-variant-numeric: tabular-nums; }
.dashboard-table th:last-child,
.dashboard-table td:last-child { text-align: right; }

.dashboard-chart-panel { width: 100%; min-width: 0; padding-top: 24px; }
.dashboard-chart-frame {
  width: 100%;
  height: clamp(280px, 42vw, 440px);
  min-width: 0;
  position: relative;
}

.line-chart,
.line-chart-canvas { width: 100%; height: 100%; }
.line-chart-canvas { display: block; }
.dashboard-chart-empty { min-height: 280px; margin: 0; display: grid; place-items: center; color: var(--muted); text-align: center; }
.dashboard-history-empty { margin: 28px 0 0; color: var(--muted); }

.leaderboard {
  min-width: 0;
  flex: 1;
  padding: clamp(64px, 9vh, 110px) 0 80px;
}

.leaderboard-heading { max-width: 820px; }
.leaderboard-heading h1 {
  margin: 18px 0 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(58px, 8vw, 108px);
  font-weight: 400;
  letter-spacing: -0.055em;
  line-height: 0.9;
}

.leaderboard-introduction {
  max-width: 680px;
  margin: 30px 0 0;
  color: var(--muted);
  font-size: clamp(16px, 1.8vw, 20px);
  line-height: 1.65;
}

.leaderboard-participation-banner {
  width: 100%;
  margin-top: clamp(30px, 4vh, 46px);
  padding: 20px 22px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 18px 28px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: linear-gradient(145deg, rgba(32, 34, 30, 0.9), rgba(24, 26, 23, 0.9));
}

.leaderboard-participation-copy { min-width: 0; }
.leaderboard-participation-copy h2 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(21px, 2.4vw, 28px);
  font-weight: 400;
  letter-spacing: -0.025em;
}
.leaderboard-participation-copy > p {
  max-width: 760px;
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}
.leaderboard-participation-status { min-height: 0; }
.leaderboard-participation-status:empty { display: none; }
.leaderboard-participation-status.is-error { color: var(--danger); }
.leaderboard-participation-action { min-height: 44px; }
.leaderboard-participation-toggle {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 14px;
}
.leaderboard-participation-toggle > span:first-child {
  width: auto;
  height: auto;
  max-width: 190px;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--ink);
  font-size: 11px;
  font-weight: 650;
  line-height: 1.35;
  text-align: right;
}
.leaderboard-participation-toggle > span:first-child::after { content: none; }
.leaderboard-participation-action[hidden],
.leaderboard-participation-toggle[hidden] { display: none; }

.leaderboard-controls {
  margin-top: clamp(42px, 6vh, 68px);
  padding: 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.leaderboard-controls > label {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 10px;
  font-weight: 650;
}

.leaderboard-select-wrap { position: relative; width: min(100%, 330px); }
.leaderboard-select-wrap::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 17px;
  width: 7px;
  height: 7px;
  border-right: 1.5px solid var(--ink);
  border-bottom: 1.5px solid var(--ink);
  pointer-events: none;
  transform: translateY(-70%) rotate(45deg);
}

.leaderboard-select-wrap select {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  min-height: 46px;
  padding: 11px 46px 11px 16px;
  border: 1px solid #50534b;
  border-radius: 3px;
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  font-size: 14px;
}

.leaderboard-content { min-width: 0; margin-top: 26px; }
.leaderboard-state {
  margin: 0;
  padding: 18px 16px;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}
.leaderboard-state.is-error { color: var(--danger); }
.leaderboard-state[hidden],
.leaderboard-table-wrap[hidden],
.leaderboard-current[hidden] { display: none; }

.leaderboard-table-wrap { width: 100%; min-width: 0; overflow: clip; }
.leaderboard-table { width: 100%; table-layout: fixed; border-collapse: collapse; }
.leaderboard-table th,
.leaderboard-table td {
  min-width: 0;
  padding: 18px 16px;
  border-bottom: 1px solid var(--line);
  text-align: left;
}
.leaderboard-table th {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 10px;
  font-weight: 650;
}
.leaderboard-table th:first-child,
.leaderboard-table td:first-child { width: 84px; text-align: center; }
.leaderboard-table th:last-child,
.leaderboard-table td:last-child { width: 120px; text-align: right; }
.leaderboard-table td { font-size: 15px; }
.leaderboard-table tbody tr.is-current-user { background: rgba(216, 255, 99, 0.055); }
.leaderboard-position { color: var(--muted); font-variant-numeric: tabular-nums; }
.leaderboard-position span { font-size: 22px; }
.leaderboard-name { overflow-wrap: anywhere; }
.leaderboard-name small {
  margin-left: 9px;
  color: var(--accent-deep);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 8px;
  font-weight: 700;
}
.leaderboard-score {
  color: var(--accent);
  font-weight: 650;
  font-variant-numeric: tabular-nums;
}
.leaderboard-current { margin-top: 28px; }
.leaderboard-current-divider { border-top: 1px dashed #55584f; }
.leaderboard-current-table td { border-bottom-style: dashed; }

.settings-page {
  flex: 1;
  padding: clamp(90px, 15vh, 170px) 0;
}

.settings-page h1 {
  margin: 18px 0 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(58px, 8vw, 108px);
  font-weight: 400;
  letter-spacing: -0.055em;
  line-height: 0.9;
}

.legal-page {
  flex: 1;
  padding: clamp(52px, 8vh, 86px) 0 clamp(90px, 12vh, 140px);
}

.legal-back-link {
  width: fit-content;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--muted);
  font-size: 12px;
  font-weight: 700;
  text-decoration: none;
  transition: color 160ms ease;
}

.legal-back-link::before { content: "←"; margin-right: 9px; }
.legal-back-link:hover { color: var(--accent); }

.legal-header {
  max-width: 1060px;
  margin-top: clamp(28px, 5vh, 52px);
}

.legal-header h1 {
  margin: 18px 0 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(52px, 7vw, 94px);
  font-weight: 400;
  letter-spacing: -0.052em;
  line-height: 0.94;
}

.legal-updated {
  margin: 30px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.legal-layout {
  margin-top: clamp(58px, 8vh, 92px);
  display: grid;
  grid-template-columns: minmax(0, 820px) minmax(210px, 1fr);
  align-items: start;
  gap: clamp(54px, 8vw, 120px);
}

.legal-document > section {
  padding: 0 0 clamp(42px, 6vh, 64px);
  border-bottom: 1px solid var(--line);
}

.legal-document > section + section { padding-top: clamp(42px, 6vh, 64px); }

.legal-document h2 {
  margin: 0 0 26px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(27px, 3vw, 38px);
  font-weight: 400;
  letter-spacing: -0.025em;
  line-height: 1.14;
}

.legal-document h3 {
  margin: 30px 0 12px;
  color: var(--ink);
  font-size: 16px;
  font-weight: 750;
  line-height: 1.4;
}

.legal-document p,
.legal-document li,
.legal-contact {
  color: #cfcbc2;
  font-size: 16px;
  line-height: 1.75;
}

.legal-document p { margin: 0; }
.legal-document p + p,
.legal-document ul + p,
.legal-document p + ul,
.legal-document address + p { margin-top: 20px; }

.legal-document ul {
  margin: 18px 0 0;
  padding-left: 24px;
}

.legal-document li { padding-left: 7px; }
.legal-document li + li { margin-top: 5px; }

.legal-document a,
.legal-related a {
  color: var(--ink);
  text-decoration-color: var(--muted);
  text-underline-offset: 4px;
  transition: color 160ms ease, text-decoration-color 160ms ease;
}

.legal-document a:hover,
.legal-related a:hover { color: var(--accent); text-decoration-color: var(--accent); }

.legal-contact {
  margin: 20px 0 0;
  padding: 20px 24px;
  border-left: 2px solid var(--accent-deep);
  background: rgba(216, 255, 99, 0.035);
  font-style: normal;
}

.legal-contact strong { color: var(--ink); }
.legal-email a { font-weight: 750; }

.legal-related {
  position: sticky;
  top: 112px;
  padding: 24px;
  border: 1px solid var(--line);
}

.legal-related h2 {
  margin: 0;
  color: var(--muted);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.13em;
  line-height: 1.4;
  text-transform: uppercase;
}

.legal-related div { margin-top: 16px; display: grid; }

.legal-related a {
  min-height: 46px;
  display: flex;
  align-items: center;
  border-top: 1px solid var(--line);
  font-size: 13px;
  font-weight: 650;
}

.legal-related a[aria-current="page"] { color: var(--accent); }

.settings-coming-soon {
  width: fit-content;
  margin: 34px 0 0;
  padding: 9px 14px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 10px;
  font-weight: 700;
}

.settings-option {
  width: min(100%, 760px);
  margin-top: clamp(42px, 6vh, 66px);
  padding: clamp(24px, 4vw, 36px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 34px;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: linear-gradient(145deg, rgba(32, 34, 30, 0.94), rgba(24, 26, 23, 0.94));
}
.settings-option-copy { min-width: 0; }
.settings-option h2 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 400;
  letter-spacing: -0.035em;
  line-height: 1.1;
}
.settings-option p {
  max-width: 590px;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}
.settings-toggle { flex: 0 0 auto; cursor: pointer; }
.settings-toggle input { position: absolute; opacity: 0; pointer-events: none; }
.settings-toggle .settings-toggle-track {
  position: relative;
  width: 54px;
  height: 30px;
  display: block;
  border: 1px solid #55584f;
  border-radius: 999px;
  background: #171815;
  transition: border-color 160ms ease, background 160ms ease;
}
.settings-toggle .settings-toggle-track::after {
  content: "";
  position: absolute;
  top: 4px;
  left: 4px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--muted);
  transition: transform 160ms ease, background 160ms ease;
}
.settings-toggle input:checked + .settings-toggle-track { border-color: var(--accent-deep); background: rgba(216, 255, 99, 0.12); }
.settings-toggle input:checked + .settings-toggle-track::after { background: var(--accent); transform: translateX(24px); }
.settings-toggle input:focus-visible + .settings-toggle-track { outline: 2px solid var(--accent); outline-offset: 4px; }
.settings-toggle input:disabled + .settings-toggle-track { cursor: not-allowed; opacity: 0.45; }
.settings-status { min-height: 22px; margin: 18px 0 0; color: var(--muted); font-size: 13px; }
.settings-status.is-error { color: var(--danger); }

.about-heading {
  max-width: 900px;
  margin-bottom: clamp(58px, 8vh, 88px);
}

.about-heading h1 {
  max-width: 880px;
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(58px, 8vw, 112px);
  font-weight: 400;
  letter-spacing: -0.055em;
  line-height: 0.9;
}

.about-introduction {
  max-width: 720px;
  margin: 36px 0 0;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 25px);
  letter-spacing: -0.02em;
  line-height: 1.55;
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.about-panel { padding: 46px 46px 50px 0; }
.about-panel + .about-panel { padding-left: 46px; border-left: 1px solid var(--line); }

.about-panel h2 {
  max-width: 460px;
  margin: 24px 0 28px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(30px, 3.5vw, 46px);
  font-weight: 400;
  letter-spacing: -0.04em;
  line-height: 1.05;
}

.about-panel > p:not(.eyebrow) {
  max-width: 520px;
  margin: 0 0 18px;
  color: var(--muted);
  line-height: 1.7;
}

.about-links {
  margin-top: 34px;
  display: grid;
  border-top: 1px solid var(--line);
}

.about-links a {
  padding: 15px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
  transition: color 160ms ease, padding 160ms ease;
}

.about-links a:hover { padding-left: 6px; color: var(--accent); }

.contact-heading { margin-bottom: clamp(48px, 7vh, 72px); }

.contact-details {
  padding: clamp(34px, 5vw, 54px) 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.contact-email {
  width: fit-content;
  margin-top: 24px;
  display: inline-flex;
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(25px, 4vw, 48px);
  letter-spacing: -0.035em;
  overflow-wrap: anywhere;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 8px;
  transition: color 160ms ease;
}

.contact-email:hover { color: var(--accent); }

.home-heading {
  max-width: 760px;
  margin-bottom: clamp(58px, 8vh, 92px);
}

.home-title, .exercise-title, .placeholder-title {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-weight: 400;
  letter-spacing: -0.055em;
}

.home-title {
  width: clamp(300px, 41vw, 590px);
  max-width: 100%;
  line-height: 1;
}

.home-title-logo {
  width: 100%;
  height: auto;
  display: block;
}

.home-subtitle {
  margin: 30px 0 0;
  color: var(--muted);
  font-size: clamp(18px, 2.4vw, 28px);
  letter-spacing: -0.025em;
}

.exercise-list {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  grid-auto-rows: 1fr;
  gap: 18px;
}

@media (max-width: 1199px) {
  .exercise-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

.exercise-card {
  min-height: 320px;
  padding: 30px;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: linear-gradient(145deg, rgba(32, 34, 30, 0.94), rgba(24, 26, 23, 0.94));
  transition: border-color 180ms ease, transform 180ms ease;
}

.exercise-card:hover { border-color: #52564d; transform: translateY(-2px); }

.card-number {
  color: var(--accent-deep);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
}

.exercise-card h2 {
  max-width: 390px;
  margin: 48px 0 18px;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(31px, 3vw, 42px);
  font-weight: 400;
  letter-spacing: -0.04em;
  line-height: 1;
}

.exercise-card p {
  max-width: 390px;
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.card-actions {
  margin-top: auto;
  padding-top: 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.availability-label, .availability-pill {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 10px;
  font-weight: 700;
}

.availability-label.is-available { color: var(--accent-deep); }

.exercise-start, .back-link {
  color: var(--ink);
  text-decoration: none;
  font-size: 13px;
  font-weight: 750;
}

.exercise-start {
  padding: 12px 22px;
  border-radius: 999px;
  background: var(--accent);
  color: #161812;
}

.exercise-start:hover { background: #e3ff8b; }

.exercise-placeholder {
  flex: 1;
  padding: clamp(90px, 15vh, 170px) 0;
}

.placeholder-title {
  max-width: 780px;
  font-size: clamp(58px, 8vw, 108px);
  line-height: 0.9;
}

.placeholder-description {
  max-width: 510px;
  margin: 34px 0 28px;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.7;
}

.availability-pill {
  display: inline-block;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
}

.back-link {
  display: block;
  width: fit-content;
  margin-top: 54px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--muted);
}

.match-pitch {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(360px, 0.85fr);
  grid-template-rows: 1fr auto;
  column-gap: clamp(50px, 7vw, 100px);
  padding: clamp(56px, 8vh, 100px) 0 42px;
}

.match-intro { align-self: center; }

.match-title {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(64px, 6.5vw, 92px);
  font-weight: 400;
  letter-spacing: -0.055em;
  line-height: 0.86;
}
.match-title span { display: block; }

.reference-readout {
  width: fit-content;
  margin-top: 38px;
  padding-left: 18px;
  border-left: 1px solid var(--line);
}
.reference-readout span, .reference-readout strong { display: block; }
.reference-readout span, .match-state-label, .match-results span {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 10px;
  font-weight: 700;
}
.reference-readout strong {
  margin-top: 7px;
  font-size: clamp(44px, 4.2vw, 58px);
  font-weight: 500;
  line-height: 1;
}

.match-stage {
  position: relative;
  align-self: center;
  min-height: 440px;
  padding: 46px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: linear-gradient(145deg, var(--surface-raised), var(--surface));
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.25);
}

.listening-indicator {
  width: 74px;
  height: 74px;
  display: grid;
  place-items: center;
  position: relative;
}
.listening-indicator span {
  grid-area: 1 / 1;
  width: 14px;
  height: 14px;
  border: 1px solid var(--accent);
  border-radius: 50%;
  opacity: 0.3;
}
.match-stage.is-listening .listening-indicator span { animation: listen-pulse 1.4s ease-out infinite; }
.match-stage.is-listening .listening-indicator span:nth-child(2) { animation-delay: 0.35s; }
.match-stage.is-listening .listening-indicator span:nth-child(3) { animation-delay: 0.7s; }

@keyframes listen-pulse {
  0% { width: 14px; height: 14px; opacity: 0.9; }
  100% { width: 72px; height: 72px; opacity: 0; }
}

.match-state-label { margin: 14px 0 8px; }
.match-status { min-height: 29px; margin: 0 0 34px; font-size: 21px; }
.match-play { min-width: 184px; }
.microphone-note {
  max-width: 250px;
  margin: 22px 0 0;
  color: var(--muted);
  text-align: center;
  font-size: 11px;
  line-height: 1.55;
}

.microphone-configuration,
.audio-configuration {
  width: min(100%, 440px);
  margin: 22px auto 0;
}

.microphone-configuration .microphone-note {
  max-width: 360px;
  margin: 0 auto;
}

.audio-input-device,
.audio-output-device {
  width: 100%;
  margin-top: 15px;
  padding-top: 15px;
  border-top: 1px solid var(--line);
}

.audio-input-device-label,
.audio-output-device-label {
  margin-bottom: 8px;
  display: block;
  color: var(--muted);
  text-align: left;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 10px;
  font-weight: 700;
}

.audio-input-device-select-wrap,
.audio-output-device-select-wrap {
  position: relative;
  display: block;
}

.audio-input-device-select-wrap::after,
.audio-output-device-select-wrap::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 17px;
  width: 7px;
  height: 7px;
  border-right: 1.5px solid var(--ink);
  border-bottom: 1.5px solid var(--ink);
  pointer-events: none;
  transform: translateY(-70%) rotate(45deg);
}

.audio-input-device-select-wrap:has(select:disabled)::after,
.audio-output-device-select-wrap:has(select:disabled)::after { opacity: 0.45; }

.audio-input-device select,
.audio-output-device select {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  min-height: 46px;
  padding: 11px 46px 11px 16px;
  border: 1px solid #50534b;
  border-radius: 3px;
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  font-size: 14px;
}

.audio-input-device select:hover:not(:disabled),
.audio-output-device select:hover:not(:disabled) { border-color: var(--accent); }
.audio-input-device select:disabled,
.audio-output-device select:disabled { cursor: not-allowed; opacity: 0.55; }
.audio-input-device.is-error select,
.audio-output-device.is-error select { border-color: var(--danger); }

.audio-input-device-feedback,
.audio-output-device-feedback {
  min-height: 18px;
  margin-top: 6px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.audio-input-device-status,
.audio-output-device-status {
  color: var(--muted);
  text-align: left;
  font-size: 11px;
  line-height: 1.45;
}

.audio-input-device.is-error .audio-input-device-status,
.audio-output-device.is-error .audio-output-device-status { color: var(--danger); }

.audio-input-device-retry,
.audio-output-device-retry,
.audio-output-device-choose,
.audio-output-device-test {
  min-height: 32px;
  padding: 5px 11px;
  border: 1px solid #50534b;
  border-radius: 999px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  font-size: 10px;
  font-weight: 700;
}

.audio-input-device-retry:hover:not(:disabled),
.audio-output-device-retry:hover:not(:disabled),
.audio-output-device-choose:hover:not(:disabled),
.audio-output-device-test:hover:not(:disabled) {
  border-color: var(--accent);
  color: var(--accent);
}

.audio-input-device-help,
.audio-input-device-warning,
.audio-output-device-help {
  margin: 8px 0 0;
  color: var(--muted);
  text-align: left;
  font-size: 11px;
  line-height: 1.5;
}

.audio-input-device-warning { margin-top: 5px; }

.audio-output-device-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.audio-output-device-feedback { flex-wrap: wrap; }
.audio-output-device-status { flex: 1 1 220px; }
.audio-output-device-choose:disabled,
.audio-output-device-test:disabled { cursor: not-allowed; opacity: 0.55; }

.match-results {
  grid-column: 1 / -1;
  margin-top: 62px;
  display: block;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.match-result-card { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.match-result-mobile-label { display: none; }
.match-results[hidden] { display: none; }
.match-result-card > div { padding: 28px 30px; border-left: 1px solid var(--line); }
.match-results strong { display: block; margin-top: 8px; font-size: 30px; font-weight: 500; }
.match-error-line {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 6px 14px;
  margin-top: 8px;
}
.match-error-line strong { margin-top: 0; }
.match-error-line p {
  margin: 0;
  font-size: 18px;
  font-weight: 500;
}
.match-error-line.is-sharp { color: #ffc46b; }
.match-error-line.is-flat { color: #87cfff; }
.match-error-line.is-wrong,
.match-error-line.is-error { color: var(--danger); }

.drone-exercise {
  flex: 1;
  padding: clamp(50px, 7vh, 84px) 0 42px;
}

.drone-intro {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 48px;
}

.drone-title {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(70px, 8vw, 112px);
  font-weight: 400;
  letter-spacing: -0.055em;
  line-height: 0.84;
}

.drone-reference {
  min-width: 150px;
  padding-left: 24px;
  border-left: 1px solid var(--line);
}

.drone-reference span,
.drone-reference strong { display: block; }

.drone-reference span,
.drone-hold-label {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 10px;
  font-weight: 700;
}

.drone-reference strong {
  margin-top: 8px;
  font-size: clamp(46px, 5vw, 64px);
  font-weight: 500;
  line-height: 1;
}

.drone-panel {
  position: relative;
  margin-top: 54px;
  padding: clamp(34px, 5vw, 58px);
  display: flex;
  flex-direction: column;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: linear-gradient(145deg, rgba(32, 34, 30, 0.94), rgba(24, 26, 23, 0.94));
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.2);
}

.drone-training-mode {
  margin-top: -8px;
  margin-bottom: 32px;
  border-color: #383b35;
}
.drone-training-mode[hidden] { display: none; }
.drone-training-mode .exercise-mode-tab { min-width: 112px; padding: 8px 14px; }
.drone-exercise.is-drone-paused .drone-track,
.drone-exercise.is-drone-paused .drone-hold-track { opacity: 0.58; }
.drone-exercise.is-drone-paused .drone-indicator { transition: none; }

.drone-meter {
  --meter-position: 50%;
  --green-zone-start: 45%;
  --green-zone-end: 55%;
  --orange-zone-start: 35%;
  --orange-zone-end: 65%;
  width: min(100%, 850px);
}

.drone-scale {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 10px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.08em;
}

.drone-track {
  height: 116px;
  margin-top: 10px;
  position: relative;
}

.drone-track::before {
  content: "";
  position: absolute;
  top: 56px;
  right: 0;
  left: 0;
  height: 4px;
  border-radius: 999px;
  background: linear-gradient(
    90deg,
    rgba(255, 139, 127, 0.48) 0 var(--orange-zone-start),
    rgba(255, 196, 107, 0.56) var(--orange-zone-start) var(--green-zone-start),
    rgba(216, 255, 99, 0.78) var(--green-zone-start) var(--green-zone-end),
    rgba(255, 196, 107, 0.56) var(--green-zone-end) var(--orange-zone-end),
    rgba(255, 139, 127, 0.48) var(--orange-zone-end) 100%
  );
}

.drone-tick,
.drone-center-line {
  position: absolute;
  top: 49px;
  width: 1px;
  height: 18px;
  background: #55584f;
}

.tick-1 { left: 10%; }
.tick-2 { left: 20%; }
.tick-3 { left: 30%; }
.tick-4 { left: 40%; }
.tick-5 { left: 50%; }
.tick-6 { left: 60%; }
.tick-7 { left: 70%; }
.tick-8 { left: 80%; }
.tick-9 { left: 90%; }

.drone-center-line {
  top: 36px;
  left: 50%;
  height: 44px;
  background: rgba(242, 238, 229, 0.62);
}

.drone-indicator {
  position: absolute;
  top: 22px;
  left: var(--meter-position);
  width: 3px;
  height: 72px;
  border-radius: 3px;
  background: var(--muted);
  color: var(--muted);
  box-shadow: 0 0 18px currentColor;
  transform: translateX(-50%);
  transition: left 110ms ease-out, background-color 140ms ease, color 140ms ease;
}

.drone-indicator::after {
  content: "";
  position: absolute;
  bottom: -9px;
  left: 50%;
  border-right: 7px solid transparent;
  border-bottom: 0;
  border-left: 7px solid transparent;
  border-top: 9px solid currentColor;
  transform: translateX(-50%);
}

.drone-meter[data-zone="green"] .drone-indicator,
.drone-meter[data-zone="green"] .drone-meter-readout { color: var(--accent); }
.drone-meter[data-zone="green"] .drone-indicator { background: var(--accent); }
.drone-meter[data-zone="orange"] .drone-indicator,
.drone-meter[data-zone="orange"] .drone-meter-readout { color: #ffc46b; }
.drone-meter[data-zone="orange"] .drone-indicator { background: #ffc46b; }
.drone-meter[data-zone="red"] .drone-indicator,
.drone-meter[data-zone="red"] .drone-meter-readout { color: var(--danger); }
.drone-meter[data-zone="red"] .drone-indicator { background: var(--danger); }

.drone-meter-readout {
  min-height: 38px;
  margin: 10px 0 0;
  color: var(--muted);
  text-align: center;
  font-size: clamp(22px, 3vw, 32px);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.025em;
  transition: color 140ms ease;
}

.drone-hold-track {
  width: min(260px, 70%);
  height: 3px;
  margin: 24px auto 0;
  overflow: hidden;
  border-radius: 99px;
  background: var(--line);
}

.drone-hold-track span {
  --hold-progress: 0;
  display: block;
  width: 100%;
  height: 100%;
  background: var(--accent);
  transform: scaleX(var(--hold-progress));
  transform-origin: left;
  transition: transform 80ms linear;
}

.drone-hold-label { margin: 12px 0 0; text-align: center; }

.drone-status {
  min-height: 28px;
  margin: 36px 0 22px;
  color: var(--ink);
  text-align: center;
  font-size: 19px;
}

.drone-controls {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.drone-statistics {
  margin: 48px 0 0;
  padding: 30px 0;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.drone-statistics div { padding-left: 30px; border-left: 1px solid var(--line); }

.harmonic-tuning {
  flex: 1;
  padding: clamp(50px, 7vh, 84px) 0 42px;
}

.harmonic-intro { max-width: 760px; }

.harmonic-title {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(64px, 7.2vw, 104px);
  font-weight: 400;
  letter-spacing: -0.055em;
  line-height: 0.88;
}

.harmonic-panel {
  position: relative;
  margin-top: 54px;
  padding: clamp(34px, 5vw, 58px);
  display: flex;
  flex-direction: column;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: linear-gradient(145deg, rgba(32, 34, 30, 0.94), rgba(24, 26, 23, 0.94));
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.2);
}

.harmonic-config { width: min(100%, 760px); }
.harmonic-kind-tabs { width: min(100%, 390px); margin-right: auto; margin-left: auto; }

.harmonic-config-section {
  padding: 34px 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.harmonic-config-section[hidden],
.harmonic-live[hidden],
.harmonic-change-config[hidden] { display: none; }

.harmonic-fieldset {
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

.harmonic-fieldset legend,
.harmonic-select-field > span:first-child {
  margin: 0 0 11px;
  display: block;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 10px;
  font-weight: 700;
}

.harmonic-choice-group {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.harmonic-choice-group label { position: relative; cursor: pointer; }
.harmonic-choice-group input { position: absolute; opacity: 0; pointer-events: none; }
.harmonic-choice-group span {
  min-height: 46px;
  padding: 10px 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #50534b;
  border-radius: 3px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  transition: border-color 140ms ease, background 140ms ease, color 140ms ease;
}
.harmonic-choice-group input:checked + span {
  border-color: var(--accent);
  background: rgba(216, 255, 99, 0.08);
  color: var(--ink);
}
.harmonic-choice-group input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 4px; }

.harmonic-select-field { min-width: 0; }
.harmonic-select-wrap { position: relative; display: block; }
.harmonic-select-wrap::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 17px;
  width: 7px;
  height: 7px;
  border-right: 1.5px solid var(--ink);
  border-bottom: 1.5px solid var(--ink);
  pointer-events: none;
  transform: translateY(-70%) rotate(45deg);
}
.harmonic-select-wrap select {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  min-height: 46px;
  padding: 11px 46px 11px 16px;
  border: 1px solid #50534b;
  border-radius: 3px;
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  font-size: 14px;
}

.harmonic-test-mode-tabs {
  width: min(100%, 390px);
  margin: 30px auto 0;
}

.harmonic-training-mode {
  width: min(100%, 390px);
  margin: 30px auto 0;
}
.harmonic-training-mode[hidden] { display: none; }

.harmonic-live {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.harmonic-reference-grid {
  width: min(100%, 680px);
  margin: 0 0 40px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.harmonic-reference-grid > div { padding: 22px 26px; border-left: 1px solid var(--line); }
.harmonic-reference-grid > div:last-child { border-right: 1px solid var(--line); }
.harmonic-reference-grid span,
.harmonic-reference-grid strong { display: block; }
.harmonic-reference-grid span {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 10px;
  font-weight: 700;
}
.harmonic-reference-grid strong {
  margin-top: 8px;
  font-size: clamp(23px, 3vw, 34px);
  font-weight: 500;
  line-height: 1.1;
}

.harmonic-status { margin-bottom: 8px; }
.harmonic-controls {
  margin-top: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}
.harmonic-change-config {
  min-height: 46px;
  padding: 11px 18px;
  border: 1px solid #50534b;
  border-radius: 999px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
}
.harmonic-change-config:hover { border-color: var(--accent); }
.harmonic-change-config:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; }

.trainer {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(360px, 0.75fr);
  grid-template-rows: 1fr auto;
  column-gap: clamp(50px, 6vw, 80px);
  padding: clamp(56px, 8vh, 100px) 0 42px;
}

.intro { align-self: center; }
.eyebrow { margin: 0 0 22px; color: var(--accent-deep); }

.exercise-title { font-size: clamp(62px, 5.4vw, 78px); line-height: 0.88; }
.exercise-title span { display: block; }
.exercise-title .title-long { font-size: 0.68em; letter-spacing: -0.045em; }

.instruction {
  max-width: 410px;
  margin: 30px 0 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.7;
}

.stage {
  align-self: center;
  min-height: 440px;
  padding: 46px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: linear-gradient(145deg, var(--surface-raised), var(--surface));
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.25);
}

.pitch-discrimination-stage {
  position: relative;
  padding-bottom: 78px;
}

.exercise-settings-trigger {
  width: 44px;
  height: 44px;
  padding: 0;
  position: absolute;
  right: 17px;
  bottom: 17px;
  display: grid;
  place-items: center;
  border: 1px solid #4b4e47;
  border-radius: 50%;
  background: rgba(16, 18, 16, 0.46);
  color: var(--muted);
  cursor: pointer;
  transition: border-color 140ms ease, color 140ms ease, background 140ms ease;
}

.exercise-settings-trigger:hover,
.exercise-settings-trigger.is-customized {
  border-color: var(--accent-deep);
  color: var(--ink);
}

.exercise-settings-trigger:focus-visible,
.exercise-settings-close:focus-visible,
.exercise-settings-done:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.exercise-settings-trigger:disabled {
  cursor: not-allowed;
  opacity: 0.4;
}

.exercise-settings-trigger[hidden] { display: none; }

.exercise-settings-icon { color: currentColor; }

.exercise-settings-indicator {
  width: 8px;
  height: 8px;
  position: absolute;
  top: 4px;
  right: 3px;
  border: 2px solid var(--surface);
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px rgba(216, 255, 99, 0.72);
}

.exercise-settings-indicator[hidden],
.exercise-settings-access[hidden],
.exercise-settings-authenticated[hidden],
#pitch-discrimination-settings-authenticated[hidden],
.exercise-settings-remote-state [hidden],
.exercise-settings-sections[hidden],
.exercise-settings-footer[hidden],
.exercise-settings-dialog:not([open]) { display: none; }

body.exercise-settings-open { overflow: hidden; }

.exercise-settings-dialog {
  width: min(calc(100% - 32px), 620px);
  max-width: none;
  max-height: min(84dvh, 720px);
  margin: auto;
  padding: 0;
  overflow: hidden;
  border: 1px solid #4b4e47;
  border-radius: 5px;
  background: var(--surface-raised);
  box-shadow: 0 30px 100px rgba(0, 0, 0, 0.64);
  color: var(--ink);
}

.exercise-settings-dialog::backdrop {
  background: rgba(5, 6, 5, 0.76);
  backdrop-filter: blur(5px);
}

.exercise-settings-surface {
  max-height: min(84dvh, 720px);
  overflow-y: auto;
}

.exercise-settings-header {
  padding: 28px 30px 24px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--line);
}

.exercise-settings-header .eyebrow { margin-bottom: 10px; }

.exercise-settings-header h2 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(30px, 5vw, 42px);
  font-weight: 400;
  letter-spacing: -0.04em;
  line-height: 1;
}

.exercise-settings-close {
  width: 44px;
  height: 44px;
  padding: 0;
  position: relative;
  flex: 0 0 auto;
  border: 1px solid #4b4e47;
  border-radius: 50%;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
}

.exercise-settings-close span {
  width: 15px;
  height: 1px;
  position: absolute;
  top: 50%;
  left: 50%;
  background: currentColor;
  transform: translate(-50%, -50%) rotate(45deg);
}

.exercise-settings-close span:last-child { transform: translate(-50%, -50%) rotate(-45deg); }
.exercise-settings-close:hover { border-color: var(--accent); color: var(--accent); }

.exercise-settings-description {
  margin: 0;
  padding: 24px 30px 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.exercise-settings-access {
  margin: 0;
  padding: 32px 30px 34px;
  display: grid;
  justify-items: start;
  gap: 12px;
}

.exercise-settings-access h3 {
  margin: 0;
  color: var(--ink);
  font-size: 18px;
  line-height: 1.3;
}

.exercise-settings-access > p {
  max-width: 480px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

.exercise-settings-access .exercise-settings-access-status {
  min-height: 0;
  color: var(--danger);
  font-size: 12px;
}

.exercise-settings-access-status:empty { display: none; }

.exercise-settings-sign-in {
  min-height: 44px;
  margin-top: 8px;
  padding-right: 22px;
  padding-left: 22px;
}

.exercise-settings-remote-state {
  min-height: 22px;
  padding: 14px 30px 0;
  display: flex;
  align-items: center;
  gap: 12px;
}

.exercise-settings-remote-state p {
  margin: 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.exercise-settings-remote-state p.is-error { color: var(--danger); }

.exercise-settings-retry {
  min-height: 44px;
  flex: 0 0 auto;
}

.exercise-settings-sections { padding: 8px 30px 4px; }

.exercise-settings-section {
  min-width: 0;
  margin: 0;
  padding: 26px 0 30px;
  border: 0;
  border-bottom: 1px solid var(--line);
}

.exercise-settings-section legend {
  padding: 0;
  color: var(--ink);
  font-size: 16px;
  font-weight: 700;
}

.exercise-settings-section > p {
  margin: 9px 0 18px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.55;
}

.exercise-settings-choices {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.exercise-settings-choices label { min-width: 0; position: relative; cursor: pointer; }
.exercise-settings-choices input { position: absolute; opacity: 0; pointer-events: none; }

.exercise-settings-choices span {
  min-height: 48px;
  padding: 10px 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #50534b;
  border-radius: 3px;
  color: var(--muted);
  text-align: center;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.25;
  transition: border-color 140ms ease, background 140ms ease, color 140ms ease;
}

.exercise-settings-choices input:checked + span {
  border-color: var(--accent);
  background: rgba(216, 255, 99, 0.08);
  color: var(--ink);
}

.exercise-settings-choices input:focus-visible + span {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.exercise-settings-choices input:disabled + span {
  cursor: wait;
  opacity: 0.55;
}

.exercise-settings-footer {
  padding: 22px 30px 28px;
  display: flex;
  justify-content: flex-end;
}

.exercise-settings-done {
  min-width: 112px;
  min-height: 46px;
  padding: 10px 24px;
  border: 0;
  border-radius: 999px;
  background: var(--accent);
  color: #161812;
  cursor: pointer;
  font-size: 12px;
  font-weight: 800;
}

.exercise-settings-done:hover { background: #e3ff8b; }
.exercise-settings-done:disabled { cursor: wait; opacity: 0.55; }

.exercise-mode-tabs {
  margin-bottom: 28px;
  padding: 4px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border: 1px solid #42453e;
  border-radius: 999px;
  background: rgba(12, 14, 12, 0.45);
}

.exercise-mode-tab {
  min-width: 128px;
  padding: 10px 16px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  font-size: 12px;
  font-weight: 700;
  transition: background 140ms ease, color 140ms ease;
}

.exercise-mode-tab.is-active {
  background: var(--accent);
  color: #161812;
}

.exercise-mode-tab:disabled { cursor: not-allowed; opacity: 0.55; }

.pitch-session-content {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.pitch-session-content[hidden],
.test-result[hidden],
.test-lives[hidden] { display: none; }

.scored-test-content {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.scored-test-content[hidden],
.scored-test-attempt[hidden] { display: none; }

.scored-test-attempt {
  margin: -14px 0 20px;
  color: var(--accent-deep);
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.tone-visual {
  height: 58px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.tone-visual span {
  width: 3px;
  height: 5px;
  border-radius: 4px;
  background: var(--accent);
  opacity: 0.45;
  transition: height 240ms ease, opacity 240ms ease;
}

.tone-visual.is-playing span {
  animation: pulse 780ms ease-in-out infinite alternate;
  opacity: 1;
}
.tone-visual span:nth-child(2n) { animation-delay: -360ms; }
.tone-visual span:nth-child(3n) { animation-delay: -610ms; }

@keyframes pulse {
  from { height: 7px; }
  to { height: 50px; }
}

.status {
  min-height: 24px;
  margin: 21px 0 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
  transition: color 140ms ease;
}

.status::before {
  display: none;
  flex: 0 0 auto;
  font-size: 17px;
  line-height: 1;
}

.status.is-correct,
.status.is-incorrect { font-weight: 750; }

.status.is-correct { color: var(--accent); }
.status.is-correct::before { content: "✓"; display: block; }
.status.is-incorrect { color: var(--danger); }
.status.is-incorrect::before { content: "⚠"; display: block; }

.play-button {
  border: 0;
  border-radius: 999px;
  background: var(--accent);
  color: #161812;
  cursor: pointer;
  font-weight: 750;
}

.play-button {
  min-width: 168px;
  padding: 17px 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 11px;
}

.exercise-action-group {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.exercise-action-group > .play-button,
.drone-controls > .play-button { width: min(100%, 280px); }

.secondary-action {
  min-height: 44px;
  width: auto;
  padding: 10px 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border: 1px solid #74786d;
  border-radius: 999px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  font: inherit;
  font-size: 13px;
  font-weight: 700;
}
.secondary-action:not(:disabled):hover { border-color: var(--accent); color: var(--accent); }
.secondary-action:disabled { cursor: not-allowed; opacity: 0.4; }
.play-button[hidden],
.secondary-action[hidden] { display: none; }

.stop-icon { display: none; }
.secondary-action.is-stop-action .stop-icon {
  width: 10px;
  height: 10px;
  display: block;
  background: currentColor;
}

.repeat-icon {
  display: none;
  font-size: 18px;
  line-height: 1;
}
.repeat-icon::before { content: "↻"; }
.secondary-action.is-repeat-action .repeat-icon { display: block; }

.play-icon {
  width: 0;
  height: 0;
  border-top: 6px solid transparent;
  border-bottom: 6px solid transparent;
  border-left: 9px solid currentColor;
}

.play-button.is-replay .play-icon {
  width: auto;
  height: auto;
  border: 0;
  font-size: 20px;
  line-height: 1;
}

.play-button.is-replay .play-icon::before { content: "↻"; }

.play-button.is-stop .play-icon {
  width: 12px;
  height: 12px;
  border: 0;
  background: currentColor;
}

.play-button.is-pause .play-icon {
  width: 12px;
  height: 13px;
  border: 0;
  border-right: 4px solid currentColor;
  border-left: 4px solid currentColor;
}

.play-button:disabled,
.answer:disabled { cursor: not-allowed; opacity: 0.35; }
.play-button:not(:disabled):hover { background: #e3ff8b; transform: translateY(-1px); }

.answers {
  width: 100%;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 36px;
}

.answer {
  min-width: 0;
  padding: 14px 8px;
  border: 1px solid #42453e;
  border-radius: 3px;
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 650;
}

.answer:not(:disabled):hover { border-color: var(--accent); background: rgba(216, 255, 99, 0.06); }
.answer-symbol { color: var(--accent); font-size: 20px; line-height: 1; }
.answer-symbol.same { transform: translateY(-1px); }

.test-lives {
  min-height: 28px;
  margin-top: 22px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
}

.test-heart {
  color: var(--danger);
  font-size: 24px;
  line-height: 1;
}

.test-heart.is-lost { color: #666a61; }

.test-result {
  width: min(100%, 430px);
  padding: 20px 0 4px;
  text-align: center;
}

.test-result-kicker {
  margin: 0 0 12px;
  color: var(--accent-deep);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.test-result h2 { margin: 0; font-size: clamp(30px, 4vw, 42px); }

.test-score {
  margin: 18px 0 32px;
  color: var(--muted);
  font-size: 15px;
}

.test-score strong {
  margin-right: 5px;
  color: var(--accent);
  font-size: clamp(50px, 6vw, 70px);
  font-weight: 500;
  line-height: 1;
}

.test-result-statistics {
  margin: 0 0 30px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.test-result-statistics div {
  padding: 0 12px;
  border-left: 1px solid var(--line);
}

.test-result-statistics div:last-child { border-right: 1px solid var(--line); }
.test-result-statistics dt { min-height: 30px; }
.test-result-statistics dd { font-size: 22px; }
.test-restart { margin: 0 auto; }

.scored-test-result .test-result-statistics {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.metrics {
  grid-column: 1 / -1;
  margin: 62px 0 0;
  padding: 30px 0 0;
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  border-top: 1px solid var(--line);
}

.metrics div { padding-left: 30px; border-left: 1px solid var(--line); }
dt { margin-bottom: 9px; }
dd { margin: 0; font-size: clamp(18px, 1.8vw, 25px); font-variant-numeric: tabular-nums; }
dd small { color: var(--muted); font-size: 13px; }

.site-footer {
  min-height: 0;
  padding: 28px 0 24px;
  border-top: 1px solid var(--line);
  letter-spacing: 0.08em;
}

.footer-primary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.footer-legal-block,
.footer-legal-item,
.footer-credit,
.footer-primary {
  display: flex;
  align-items: center;
}

.footer-legal-block {
  min-width: 0;
  flex-wrap: wrap;
  gap: 8px;
  text-align: left;
}

.footer-legal-item,
.footer-credit { gap: 5px; }

.site-footer a {
  color: var(--muted);
  text-decoration: none;
  transition: color 160ms ease;
}

.site-footer a:hover { color: var(--accent); }

.site-footer .language-selector select {
  text-transform: none;
  letter-spacing: 0;
}

button:focus-visible, a:focus-visible, select:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.exercise-learn-link {
  width: fit-content;
  margin-top: 18px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--muted);
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.05em;
  line-height: 1.5;
  text-underline-offset: 5px;
  transition: color 160ms ease;
}

.exercise-learn-link::after { content: "↗"; color: var(--accent); }
.exercise-learn-link:hover { color: var(--ink); }

.learning-body { background-color: #10110f; }

.learning-shell {
  width: min(1180px, calc(100% - 48px));
  min-height: 100vh;
  margin: 0 auto;
}

.learning-site-header {
  min-height: 86px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--line);
}

.learning-header-action {
  min-height: 44px;
  padding: 0 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid #50534b;
  border-radius: 999px;
  color: var(--ink);
  font-size: 12px;
  font-weight: 750;
  letter-spacing: 0.06em;
  text-decoration: none;
  text-transform: uppercase;
  transition: border-color 160ms ease, color 160ms ease;
}

.learning-header-action:hover { border-color: var(--accent); color: var(--accent); }

.learning-breadcrumbs { padding: 28px 0 0; }
.learning-breadcrumbs ol { margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 9px; list-style: none; }
.learning-breadcrumbs li { color: var(--muted); font-size: 12px; line-height: 1.5; }
.learning-breadcrumbs li + li::before { content: "/"; margin-right: 9px; color: #62655d; }
.learning-breadcrumbs a { color: var(--muted); text-underline-offset: 4px; }
.learning-breadcrumbs a:hover { color: var(--accent); }

.learning-hero {
  min-height: 620px;
  padding: clamp(70px, 9vw, 132px) 0 96px;
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(260px, 0.55fr);
  align-items: center;
  gap: clamp(48px, 9vw, 120px);
  border-bottom: 1px solid var(--line);
}

.learning-hero-copy { max-width: 760px; }
.learning-hero h1 {
  max-width: 820px;
  margin: 14px 0 30px;
  font-size: clamp(52px, 7.2vw, 96px);
  font-weight: 500;
  letter-spacing: -0.065em;
  line-height: 0.94;
  text-wrap: balance;
}

.learning-hero-copy > p:not(.eyebrow) {
  max-width: 700px;
  margin: 0 0 16px;
  color: #c6c5bd;
  font-size: clamp(17px, 1.65vw, 21px);
  line-height: 1.7;
}

.learning-hero-actions { margin-top: 34px; display: flex; align-items: center; flex-wrap: wrap; gap: 20px; }
.learning-hero-actions > span { color: var(--muted); font-size: 12px; letter-spacing: 0.06em; text-transform: uppercase; }

.learning-primary-cta {
  min-height: 50px;
  padding: 0 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--accent);
  border-radius: 999px;
  background: var(--accent);
  color: #11120f;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.07em;
  text-decoration: none;
  text-transform: uppercase;
  transition: background-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.learning-primary-cta:hover { background: transparent; color: var(--accent); transform: translateY(-1px); }

.learning-hero-visual {
  height: 310px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(7px, 1vw, 13px);
  border: 1px solid var(--line);
  border-radius: 50%;
  background: radial-gradient(circle, rgba(216, 255, 99, 0.11), transparent 63%);
}

.learning-hero-visual span {
  width: clamp(5px, 0.65vw, 8px);
  height: 24%;
  border-radius: 99px;
  background: var(--accent);
  opacity: 0.72;
}

.learning-hero-visual span:nth-child(2),
.learning-hero-visual span:nth-child(6) { height: 42%; opacity: 0.82; }
.learning-hero-visual span:nth-child(3),
.learning-hero-visual span:nth-child(5) { height: 62%; opacity: 0.92; }
.learning-hero-visual span:nth-child(4) { height: 82%; }

.learning-layout {
  padding: 96px 0 120px;
  display: grid;
  grid-template-columns: minmax(0, 760px) minmax(230px, 300px);
  justify-content: space-between;
  gap: clamp(60px, 10vw, 130px);
}

.learning-content > section { padding: 0 0 74px; scroll-margin-top: 30px; }
.learning-content > section + section { padding-top: 74px; border-top: 1px solid var(--line); }
.learning-content h2,
.learning-related h2 {
  margin: 0 0 26px;
  font-size: clamp(32px, 4.2vw, 50px);
  font-weight: 540;
  letter-spacing: -0.045em;
  line-height: 1.05;
  text-wrap: balance;
}

.learning-content h3 { margin: 34px 0 12px; font-size: 21px; font-weight: 650; letter-spacing: -0.015em; }
.learning-content p,
.learning-content li {
  color: #c6c5bd;
  font-size: 18px;
  line-height: 1.78;
}
.learning-content p { margin: 0 0 20px; }
.learning-content ul,
.learning-content ol { margin: 22px 0 26px; padding-left: 25px; }
.learning-content li { margin-bottom: 8px; padding-left: 5px; }
.learning-content strong { color: var(--ink); }

.learning-sticky-card {
  position: sticky;
  top: 28px;
  padding: 26px;
  border: 1px solid var(--line);
  background: rgba(24, 26, 23, 0.92);
  backdrop-filter: blur(12px);
}

.learning-sticky-card > strong { display: block; margin-bottom: 18px; font-size: 13px; letter-spacing: 0.07em; text-transform: uppercase; }
.learning-sticky-card ol { margin: 0 0 26px; padding: 0; list-style: none; }
.learning-sticky-card li + li { margin-top: 10px; }
.learning-sticky-card li a { color: var(--muted); font-size: 13px; line-height: 1.45; text-decoration: none; }
.learning-sticky-card li a:hover { color: var(--accent); }
.learning-sticky-card .learning-primary-cta { width: 100%; padding-right: 12px; padding-left: 12px; text-align: center; }

.learning-faq-list { border-top: 1px solid var(--line); }
.learning-faq details { border-bottom: 1px solid var(--line); }
.learning-faq summary {
  min-height: 66px;
  padding: 20px 42px 20px 0;
  position: relative;
  display: flex;
  align-items: center;
  color: var(--ink);
  font-size: 18px;
  font-weight: 650;
  line-height: 1.45;
  cursor: pointer;
  list-style: none;
}
.learning-faq summary::-webkit-details-marker { display: none; }
.learning-faq summary::after { content: "+"; position: absolute; right: 6px; color: var(--accent); font-size: 24px; font-weight: 400; }
.learning-faq details[open] summary::after { content: "−"; }
.learning-faq details p { padding: 0 40px 24px 0; }

.learning-conclusion {
  padding: 48px !important;
  border: 1px solid var(--line) !important;
  background: radial-gradient(circle at 88% 18%, rgba(216, 255, 99, 0.1), transparent 18rem), var(--surface);
}
.learning-conclusion .learning-primary-cta { margin-top: 10px; }

.learning-related { padding: 90px 0 110px; border-top: 1px solid var(--line); }
.learning-related > div { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); border: 1px solid var(--line); }
.learning-related-card { min-height: 220px; padding: 34px; display: flex; flex-direction: column; color: var(--ink); text-decoration: none; }
.learning-related-card + .learning-related-card { border-left: 1px solid var(--line); }
.learning-related-card > span { margin-bottom: 28px; color: var(--muted); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; }
.learning-related-card > strong { max-width: 420px; font-size: clamp(22px, 2.4vw, 31px); font-weight: 560; letter-spacing: -0.025em; line-height: 1.15; }
.learning-related-card > small { margin-top: auto; padding-top: 28px; color: var(--accent); font-size: 12px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; }
.learning-related-card:hover { background: var(--surface); }

.learning-footer { min-height: 100px; padding: 28px 0; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 18px 28px; border-top: 1px solid var(--line); color: var(--muted); font-size: 11px; letter-spacing: 0.05em; text-transform: uppercase; }
.learning-footer a { color: var(--muted); text-decoration: none; }
.learning-footer a:hover { color: var(--accent); }
.learning-mobile-cta { display: none; }

@media (max-width: 800px) {
  .shell { width: min(100% - 30px, 620px); }
  .trainer { grid-template-columns: 1fr; padding-top: 48px; }
  .about-grid { grid-template-columns: 1fr; }
  .about-panel { padding: 38px 0; }
  .about-panel + .about-panel { padding-left: 0; border-top: 1px solid var(--line); border-left: 0; }
  .dashboard-best-grid { grid-template-columns: 1fr; }
  .match-pitch { grid-template-columns: 1fr; padding-top: 48px; }
  .harmonic-panel { margin-top: 42px; }
  .intro { text-align: center; }
  .instruction { margin-left: auto; margin-right: auto; }
  .stage { min-height: 390px; margin-top: 44px; padding: 32px 20px; }
  .pitch-discrimination-stage { padding-bottom: 76px; }
  .match-intro { text-align: center; }
  .match-intro .instruction { margin-left: auto; margin-right: auto; }
  .reference-readout { margin-left: auto; margin-right: auto; text-align: left; }
  .match-stage { min-height: 390px; margin-top: 44px; padding: 32px 20px; }
  .match-results { margin-top: 42px; }
  .drone-intro { align-items: flex-end; }
  .drone-panel { margin-top: 42px; }
  .drone-statistics { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: 28px; }
  .metrics { margin-top: 42px; }
  .metrics { grid-template-columns: repeat(3, 1fr); row-gap: 28px; }
  .metrics div { padding-left: 18px; }
  .footer-primary { align-items: flex-start; flex-direction: column; }
  .footer-primary .language-selector { align-self: flex-end; }
  .exercise-learn-link { margin-right: auto; margin-left: auto; }
  .drone-intro .exercise-learn-link { margin-left: 0; }
  .learning-hero { min-height: 0; grid-template-columns: 1fr; }
  .learning-hero-copy { max-width: none; }
  .learning-hero-visual { width: min(360px, 80vw); height: min(360px, 80vw); margin: 0 auto; }
  .learning-layout { grid-template-columns: 1fr; }
  .learning-sidebar { display: none; }
  .learning-related > div { grid-template-columns: 1fr; }
  .learning-related-card + .learning-related-card { border-top: 1px solid var(--line); border-left: 0; }
  .learning-mobile-cta {
    min-height: 50px;
    position: sticky;
    z-index: 20;
    right: 0;
    bottom: 16px;
    left: 0;
    margin: 0 auto 16px;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--accent);
    border-radius: 999px;
    background: var(--accent);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.4);
    color: #11120f;
    font-size: 12px;
    font-weight: 800;
    letter-spacing: 0.07em;
    text-decoration: none;
    text-transform: uppercase;
  }
}

@media (max-width: 680px) {
  .exercise-list { grid-template-columns: 1fr; }
  .masthead {
    height: 76px;
    min-height: 76px;
    padding: 0;
    align-items: center;
    flex-direction: row;
  }
  .masthead-actions { width: auto; flex-wrap: nowrap; gap: 10px; }
  .desktop-navigation { display: none; }
  .mobile-menu-toggle { display: grid; }
  .mobile-navigation { display: block; }
  .brand-logo { width: 108px; }
  .language-selector select { min-width: 88px; padding-left: 9px; }
  .account-summary { padding-left: 0; border-left: 0; }
  .account-navigation-name { max-width: 82px; }
  .account-navigation-action { min-height: 44px; padding: 8px 12px; font-size: 10px; }
  .legal-layout { grid-template-columns: 1fr; gap: 52px; }
  .legal-related { position: static; }
  .pwa-install-hint { top: 88px; }
}

@media (max-width: 480px) {
  .masthead-actions { gap: 8px; }
  .account-navigation-name { max-width: 64px; }
  .account-details div,
  .profile-provider-details div { grid-template-columns: 1fr; gap: 8px; }
  .authentication-page,
  .onboarding-page { padding: 38px 0 64px; }
  .authentication-card,
  .onboarding-card { padding: 30px 22px; }
  .authentication-logo { width: 142px; margin-bottom: 28px; }
  .authentication-card h1 { font-size: 29px; }
  .onboarding-card h1 { font-size: 46px; }
  .legal-page { padding-top: 32px; }
  .legal-header h1 { font-size: 46px; }
  .legal-layout { margin-top: 48px; }
  .legal-document h2 { font-size: 29px; }
  .legal-document p,
  .legal-document li,
  .legal-contact { font-size: 15px; line-height: 1.7; }
  .legal-contact { padding: 18px; overflow-wrap: anywhere; }
  .oauth-button { min-height: 52px; }
  .profile-marketing-option { align-items: flex-start; }
  .profile-marketing-option > span:first-child { max-width: 210px; }
  .dashboard-user-identity { align-items: flex-start; flex-direction: column; }
  .dashboard-history-heading { align-items: flex-start; flex-direction: column; }
  .dashboard-view-modes { width: 100%; }
  .dashboard-view-mode { flex: 1; justify-content: center; }
  .dashboard-chart-frame { height: 280px; }
  .leaderboard-controls { align-items: stretch; flex-direction: column; gap: 12px; }
  .leaderboard-participation-banner {
    padding: 20px;
    grid-template-columns: 1fr;
    align-items: stretch;
  }
  .leaderboard-participation-action { width: 100%; }
  .leaderboard-participation-toggle { justify-content: space-between; }
  .leaderboard-participation-toggle > span:first-child { max-width: none; text-align: left; }
  .leaderboard-select-wrap { width: 100%; }
  .leaderboard-table th,
  .leaderboard-table td { padding: 16px 8px; }
  .leaderboard-table th:first-child,
  .leaderboard-table td:first-child { width: 58px; }
  .leaderboard-table th:last-child,
  .leaderboard-table td:last-child { width: 86px; }
  .leaderboard-position span { font-size: 20px; }
  .leaderboard-name small { display: block; margin: 5px 0 0; }
  .settings-option { align-items: flex-start; gap: 20px; }
  .brand { min-height: 44px; }
  .home { padding-top: 54px; }
  .home-title { width: min(100%, 300px); }
  .exercise-card { min-height: 290px; padding: 24px; }
  .exercise-start { min-height: 44px; display: inline-flex; align-items: center; }
  .trainer, .trainer > * { min-width: 0; }
  .exercise-title {
    max-width: 100%;
    font-size: clamp(44px, 15vw, 58px);
    text-wrap: balance;
  }
  .exercise-title .title-long { font-size: 0.55em; }
  .answers { gap: 7px; }
  .answer { flex-direction: column; gap: 3px; padding: 11px 4px; }
  .exercise-action-group { width: 100%; }
  .exercise-action-group > .play-button { width: 100%; min-height: 50px; }
  .exercise-action-group > .secondary-action { width: auto; min-height: 44px; }
  .exercise-settings-dialog { width: min(calc(100% - 20px), 620px); }
  .exercise-settings-header { padding: 23px 20px 20px; }
  .exercise-settings-access { padding: 26px 20px 28px; }
  .exercise-settings-description { padding: 20px 20px 0; }
  .exercise-settings-remote-state {
    padding-right: 20px;
    padding-left: 20px;
    align-items: flex-start;
    flex-direction: column;
  }
  .exercise-settings-sections { padding-right: 20px; padding-left: 20px; }
  .exercise-settings-choices { grid-template-columns: 1fr; }
  .exercise-settings-footer { padding: 18px 20px 24px; }
  .exercise-settings-done { width: 100%; min-height: 48px; }
  .match-title { font-size: 58px; }
  .match-result-card {
    padding: 24px 18px;
    grid-template-columns: auto minmax(0, 1fr);
    align-items: baseline;
    column-gap: 7px;
  }
  .match-result-mobile-label {
    display: block;
    grid-column: 1 / -1;
    margin-bottom: 8px;
  }
  .match-result-card > div,
  .match-error-line { display: contents; }
  .match-result-card > div > span { display: none; }
  .match-results strong { margin-top: 0; }
  #match-detected { grid-column: 1; grid-row: 2; }
  #match-error { grid-column: 2; grid-row: 2; }
  #match-error::before { content: "("; }
  #match-error::after { content: ")"; }
  #match-assessment {
    grid-column: 1 / -1;
    grid-row: 3;
    margin-top: 8px;
  }
  .drone-intro { align-items: flex-start; flex-direction: column; gap: 34px; }
  .drone-title { font-size: 68px; }
  .drone-reference { min-width: 0; }
  .drone-panel { padding: 28px 18px; }
  .drone-track { height: 96px; }
  .drone-track::before { top: 46px; }
  .drone-tick { top: 39px; }
  .drone-center-line { top: 26px; }
  .drone-indicator { top: 12px; }
  .drone-controls { width: 100%; }
  .drone-controls > .play-button { width: 100%; min-height: 50px; }
  .drone-controls > .secondary-action { width: auto; min-height: 44px; }
  .drone-statistics { grid-template-columns: 1fr; gap: 20px; }
  .drone-statistics div { padding: 0 0 20px 18px; border-bottom: 1px solid var(--line); }
  .harmonic-title { font-size: 62px; }
  .harmonic-panel { padding: 28px 18px; }
  .harmonic-config-section { grid-template-columns: 1fr; }
  .harmonic-reference-grid { grid-template-columns: 1fr; }
  .harmonic-reference-grid > div { border-right: 1px solid var(--line); }
  .harmonic-reference-grid > div + div { border-top: 1px solid var(--line); }
  .harmonic-controls { width: 100%; flex-direction: column; }
  .harmonic-controls > button { width: 100%; }
  .metrics { grid-template-columns: 1fr; gap: 20px; }
  .metrics div { padding: 0 0 20px 18px; border-left: 1px solid var(--line); border-bottom: 1px solid var(--line); }
  .site-footer { padding-top: 32px; }
  .footer-primary { gap: 18px; }
  .site-footer .language-selector select { min-height: 44px; }
  .footer-legal-block { width: 100%; line-height: 1.5; }
  .footer-credit { flex-wrap: wrap; gap: 6px; }
  .footer-credit a { min-height: 44px; display: inline-flex; align-items: center; }
  .footer-legal-item > a {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    line-height: 1.5;
  }
  .learning-shell { width: min(100% - 30px, 620px); }
  .learning-site-header { min-height: 76px; }
  .learning-header-action { padding: 0 14px; font-size: 10px; }
  .learning-breadcrumbs { padding-top: 20px; }
  .learning-breadcrumbs li[aria-current="page"] { max-width: 230px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
  .learning-hero { padding: 54px 0 68px; gap: 50px; }
  .learning-hero h1 { margin-bottom: 24px; font-size: clamp(44px, 14vw, 62px); }
  .learning-hero-copy > p:not(.eyebrow) { font-size: 17px; line-height: 1.65; }
  .learning-hero-actions { align-items: flex-start; flex-direction: column; }
  .learning-hero-visual { width: min(280px, 80vw); height: min(280px, 80vw); }
  .learning-layout { padding: 72px 0 86px; }
  .learning-content > section { padding-bottom: 58px; }
  .learning-content > section + section { padding-top: 58px; }
  .learning-content p,
  .learning-content li { font-size: 17px; line-height: 1.7; }
  .learning-conclusion { padding: 30px 24px !important; }
  .learning-related { padding: 68px 0 78px; }
  .learning-related-card { min-height: 200px; padding: 26px; }
  .learning-footer { align-items: flex-start; flex-direction: column; line-height: 1.6; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}