/* DriveReady mobile PWA — single stylesheet
   Honors brief tokens exactly: palette, type scale, radii, spacing, one shadow.
*/

:root {
  --asphalt: #16202e;
  --asphalt-2: #1f2c3e;
  --go: #13b16e;
  --go-d: #0e8e58;
  --go-soft: #e4f6ee;
  --lane: #ffc640;
  --lane-d: #c98f00;
  --lane-soft: #fff3d2;
  --stop: #d92f3a;
  --stop-soft: #fbe5e7;
  --ink: #16202e;
  --ink-2: #5d6b80;
  --ink-3: #8ba8bc;
  --paper: #ffffff;
  --paper-2: #f3f6fb;
  --line: #e6ebf2;
  --line-2: #eef2f7;

  --r-sm: 8px;
  --r-md: 12px;
  --r-lg: 16px;
  --r-xl: 22px;

  --shadow-1: 0 4px 16px rgba(22, 32, 46, 0.08);

  --sb: env(safe-area-inset-bottom, 0px);
  --st: env(safe-area-inset-top, 0px);

  --font-sys: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; padding: 0; }
html { background: var(--paper-2); }
body {
  font-family: var(--font-sys);
  font-size: 15px;
  line-height: 1.55;
  color: var(--ink);
  background: var(--paper-2);
  min-height: 100dvh;
  overscroll-behavior-y: none;
  -webkit-font-smoothing: antialiased;
}
body.no-tabs #tabbar { display: none; }

h1, h2, h3, h4, p, ul, ol { margin: 0; }
ul, ol { padding: 0; list-style: none; }
button { font-family: inherit; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
input, button, select, textarea { font: inherit; color: inherit; }

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

/* ---------- App shell ---------- */
.dr-app { width: 100%; min-height: 100dvh; position: relative; }
.dr-screen {
  display: block;
  width: 100%;
  min-height: 100dvh;
  padding-top: var(--st);
  padding-bottom: calc(64px + var(--sb) + 8px);
  background: var(--paper-2);
}
.dr-screen.no-tab-pad { padding-bottom: var(--sb); }
.dr-bottom-spacer { height: 96px; }
.dr-spacer-8 { height: 8px; } .dr-spacer-12 { height: 12px; }
.dr-spacer-16 { height: 16px; } .dr-spacer-20 { height: 20px; }
.dr-spacer-24 { height: 24px; } .dr-spacer-32 { height: 32px; }

/* ---------- Header ---------- */
.dr-header {
  background: var(--asphalt);
  color: #fff;
  padding: calc(var(--st) + 10px) 16px 12px;
  display: flex; align-items: center; justify-content: space-between;
  min-height: calc(56px + var(--st));
  position: sticky; top: 0; z-index: 30;
}
.dr-header-title {
  font-size: 17px; font-weight: 700; letter-spacing: -0.01em;
  color: #fff;
}
.dr-header-left, .dr-header-right { display: flex; align-items: center; gap: 8px; }
.dr-header-action {
  background: transparent; border: 0; color: #fff; padding: 8px;
  min-width: 44px; min-height: 44px; display: inline-flex; align-items: center; justify-content: center;
  border-radius: var(--r-sm); cursor: pointer;
}
.dr-header-action:active { transform: scale(0.95); }
.dr-back {
  background: transparent; border: 0; color: #fff;
  display: inline-flex; align-items: center; gap: 4px;
  padding: 8px 8px 8px 4px; min-height: 44px; cursor: pointer; border-radius: var(--r-sm);
  font-size: 14px; font-weight: 600;
}
.dr-back:active { transform: scale(0.97); }
.dr-greeting { font-size: 15px; font-weight: 600; color: #fff; }

/* ---------- Tab bar ---------- */
.dr-tabbar {
  position: fixed; left: 0; right: 0; bottom: 0;
  background: var(--paper);
  border-top: 1px solid var(--line);
  padding-bottom: var(--sb);
  height: calc(64px + var(--sb));
  display: grid; grid-template-columns: repeat(4, 1fr);
  z-index: 40;
  box-shadow: var(--shadow-1);
}
.dr-tab {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 2px;
  color: var(--ink-3);
  font-size: 11px; font-weight: 600;
  text-decoration: none;
  min-height: 64px;
}
.dr-tab:active { transform: scale(0.95); }
.dr-tab-icon { display: inline-flex; line-height: 0; }
.dr-tab-label { letter-spacing: 0.01em; }
.dr-tab--active { color: var(--go); }
.dr-tab--active .dr-tab-label { color: var(--go); }

/* ---------- Caption / section headers ---------- */
.dr-caption {
  font-size: 11px; font-weight: 600;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--ink-3);
  padding: 24px 20px 8px;
}
.dr-caption--tight { padding-top: 16px; }

/* ---------- Cards ---------- */
.dr-card {
  background: var(--paper);
  border-radius: var(--r-lg);
  margin: 0 16px 12px;
  padding: 20px;
}
.dr-card--md { border-radius: var(--r-md); padding: 16px; }

/* ---------- CTA buttons ---------- */
.dr-cta-primary, .dr-cta-secondary, .dr-cta-danger, .dr-cta-ghost {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  width: 100%;
  min-height: 56px;
  padding: 0 20px;
  border-radius: var(--r-xl);
  border: 0;
  font-size: 16px; font-weight: 700; letter-spacing: -0.01em;
  cursor: pointer;
  text-align: center;
  box-shadow: var(--shadow-1);
}
.dr-cta-primary { background: var(--go); color: #fff; }
.dr-cta-primary:active { transform: scale(0.97); background: var(--go-d); }
.dr-cta-primary:disabled, .dr-cta-primary[aria-disabled="true"] { background: var(--line); color: var(--ink-3); box-shadow: none; cursor: not-allowed; }
.dr-cta-google { display: flex; align-items: center; justify-content: center; gap: 10px; width: 100%; padding: 14px 20px; border-radius: var(--r-xl); border: 1px solid var(--line); background: var(--paper); color: var(--ink); font-size: 15px; font-weight: 600; cursor: pointer; margin-top: 10px; }
.dr-cta-google:active { transform: scale(0.97); background: var(--paper-2); }
.dr-cta-secondary { background: var(--paper); color: var(--ink); border: 1px solid var(--line); box-shadow: none; }
.dr-cta-secondary:active { transform: scale(0.97); background: var(--paper-2); }
.dr-cta-danger { background: var(--stop); color: #fff; }
.dr-cta-danger:active { transform: scale(0.97); }
.dr-cta-ghost { background: transparent; color: var(--ink-2); box-shadow: none; min-height: 44px; font-weight: 600; }
.dr-cta-ghost:active { transform: scale(0.97); color: var(--ink); }

.dr-cta--lane { background: var(--lane); color: var(--ink); }
.dr-cta--lane:active { background: var(--lane-d); color: #fff; }

.dr-link {
  color: var(--go-d); font-weight: 600; text-decoration: underline;
  display: inline-block; padding: 8px 0; cursor: pointer; background: transparent; border: 0;
  font-size: 14px;
}
.dr-link-danger { color: var(--stop); font-weight: 600; cursor: pointer; background: transparent; border: 0; padding: 8px 0; font-size: 14px; }

.dr-cta-card {
  background: var(--asphalt);
  color: #fff;
  border-radius: var(--r-lg);
  padding: 20px;
  margin: 0 16px 12px;
  position: relative;
  overflow: hidden;
}
.dr-cta-card h2 { font-size: 17px; font-weight: 700; margin-bottom: 4px; color: #fff; }
.dr-cta-card .dr-cta-card-sub { color: #c1d0e0; font-size: 13px; margin-bottom: 16px; }
.dr-cta-card .dr-cta-primary { background: var(--lane); color: var(--ink); }
.dr-cta-card .dr-cta-primary:active { background: var(--lane-d); }
.dr-cta-card-stripe {
  position: absolute; top: 0; right: -20px; width: 80px; height: 100%;
  background:
    repeating-linear-gradient(135deg, transparent 0 14px, rgba(255,198,64,0.18) 14px 22px);
  pointer-events: none;
}

/* ---------- Trial badge ---------- */
.dr-trial-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--lane);
  color: var(--ink);
  border: 0;
  font-size: 12px; font-weight: 700;
  padding: 6px 12px;
  border-radius: 999px;
  cursor: pointer;
  min-height: 36px;
}
.dr-trial-badge:active { transform: scale(0.97); }
.dr-trial-badge--expired { background: var(--stop-soft); color: var(--stop); }
.dr-trial-badge--pro { background: var(--go-soft); color: var(--go-d); }
.dr-trial-warning {
  background: var(--go-soft);
  color: var(--go-d);
  margin: 12px 16px 0;
  padding: 12px 16px;
  border-radius: var(--r-md);
  font-size: 13px; font-weight: 600;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  cursor: pointer;
}
.dr-trial-warning--soon { background: var(--lane-soft); color: var(--lane-d); }
.dr-trial-warning--hard { background: var(--lane); color: var(--ink); }

/* ---------- Status pills ---------- */
.dr-pill {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 12px; font-weight: 700;
  padding: 6px 12px;
  border-radius: 999px;
  background: var(--line-2); color: var(--ink-2);
}
.dr-pill--go { background: var(--go-soft); color: var(--go-d); }
.dr-pill--lane { background: var(--lane-soft); color: var(--lane-d); }
.dr-pill--stop { background: var(--stop-soft); color: var(--stop); }
.dr-pill--neutral { background: var(--line-2); color: var(--ink-2); }

/* ---------- Readiness ring ---------- */
.dr-ring-wrap { display: flex; flex-direction: column; align-items: center; gap: 8px; padding: 8px 0 4px; }
.dr-ring {
  width: 160px; height: 160px;
  border-radius: 50%;
  display: grid; place-items: center;
  background:
    conic-gradient(var(--go) 0deg, var(--go-d) calc(var(--pct, 0) * 3.6deg), var(--go-soft) 0deg);
  position: relative;
}
.dr-ring--lg { width: 180px; height: 180px; }
.dr-ring::after {
  content: ""; position: absolute; inset: 12px; background: var(--paper); border-radius: 50%;
}
.dr-ring-inner { position: relative; z-index: 2; text-align: center; }
.dr-ring-pct { font-size: 32px; font-weight: 700; line-height: 1; color: var(--ink); }
.dr-ring--lg .dr-ring-pct { font-size: 36px; }
.dr-ring-label { font-size: 11px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-2); margin-top: 4px; }

/* ---------- Stats strip ---------- */
.dr-stats-strip { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; padding: 0 16px 12px; }
.dr-stat-card { background: var(--paper); border-radius: var(--r-md); padding: 12px 8px; text-align: center; }
.dr-stat-value { font-size: 18px; font-weight: 700; color: var(--ink); line-height: 1.1; }
.dr-stat-label { font-size: 11px; font-weight: 600; color: var(--ink-2); margin-top: 4px; }

/* ---------- Weak spots + shortcuts ---------- */
.dr-weak-row {
  background: var(--paper);
  border-radius: var(--r-md);
  padding: 14px 16px;
  margin: 0 16px 8px;
  display: grid; grid-template-columns: 1fr auto; gap: 8px 12px; align-items: center;
  cursor: pointer; border: 0; width: calc(100% - 32px); text-align: left;
}
.dr-weak-row:active { transform: scale(0.99); }
.dr-weak-name { font-size: 14px; font-weight: 700; color: var(--ink); }
.dr-weak-score { font-size: 13px; font-weight: 700; color: var(--ink-2); }
.dr-weak-row .dr-progress { grid-column: 1 / -1; }

.dr-shortcut-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px;
  padding: 0 16px;
}
.dr-shortcut {
  background: var(--paper); border-radius: var(--r-md);
  min-height: 88px;
  display: flex; flex-direction: column; align-items: flex-start; justify-content: center; gap: 6px;
  padding: 14px 16px;
  cursor: pointer; border: 0; text-align: left; position: relative;
}
.dr-shortcut:active { transform: scale(0.98); }
.dr-shortcut-icon {
  width: 32px; height: 32px; border-radius: 8px;
  background: var(--go-soft); color: var(--go-d);
  display: grid; place-items: center;
}
.dr-shortcut-label { font-size: 14px; font-weight: 700; color: var(--ink); }
.dr-shortcut-badge {
  position: absolute; top: 10px; right: 10px;
  background: var(--stop); color: #fff;
  font-size: 11px; font-weight: 700;
  min-width: 20px; height: 20px;
  border-radius: 999px; padding: 0 6px;
  display: inline-flex; align-items: center; justify-content: center;
}
.dr-shortcut[aria-disabled="true"] { opacity: 0.5; pointer-events: none; }

/* ---------- Progress bars ---------- */
.dr-progress { width: 100%; height: 6px; background: var(--line-2); border-radius: 999px; overflow: hidden; }
.dr-progress-fill { height: 100%; background: var(--go); border-radius: inherit; transition: width 320ms ease; }
.dr-progress-fill--lane { background: var(--lane); }
.dr-progress-fill--stop { background: var(--stop); }
.dr-progress-thin { width: 100%; height: 4px; background: var(--asphalt-2); }
.dr-progress-thin > span { display: block; height: 100%; background: var(--lane); transition: width 320ms ease; }

/* ---------- Inputs / search ---------- */
.dr-input {
  display: block;
  width: 100%;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  padding: 14px 16px;
  font-size: 16px;
  color: var(--ink);
  min-height: 52px;
}
.dr-input:focus { outline: 2px solid var(--go); outline-offset: 1px; border-color: var(--go); }
select.dr-input { appearance: auto; cursor: pointer; }
.dr-search {
  padding: 8px 16px 12px;
  display: flex; gap: 8px; align-items: center;
  background: var(--asphalt);
}
.dr-search .dr-input { flex: 1; }
.dr-search-cancel { color: #fff; background: transparent; border: 0; font-weight: 600; padding: 8px; cursor: pointer; }

/* ---------- Hero / Lesson ---------- */
.dr-hero-card {
  background: var(--paper); border-radius: var(--r-lg);
  padding: 20px; margin: 12px 16px;
  text-align: center;
}
.dr-status-row { display: flex; justify-content: center; padding-top: 8px; }

.dr-lesson-hero {
  background: var(--paper); padding: 24px 20px 20px;
}
.dr-lesson-hero h1 {
  font-size: 22px; font-weight: 700; line-height: 1.25; color: var(--ink);
  margin-top: 12px; margin-bottom: 8px;
}
.dr-lesson-hero .dr-hook { color: var(--ink-2); font-style: italic; font-size: 15px; line-height: 1.55; }
.dr-chip {
  display: inline-flex; align-items: center; gap: 4px;
  background: var(--go-soft); color: var(--go-d);
  font-size: 11px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase;
  padding: 4px 10px; border-radius: 999px;
}
.dr-chip--lane { background: var(--lane-soft); color: var(--lane-d); }
.dr-chip--stop { background: var(--stop-soft); color: var(--stop); }
.dr-chip--neutral { background: var(--line-2); color: var(--ink-2); }

.dr-lesson-body {
  background: var(--paper);
  border-radius: var(--r-lg);
  margin: 16px;
  padding: 20px;
}
.dr-lesson-body p { margin-bottom: 16px; font-size: 15px; line-height: 1.6; color: var(--ink); }
.dr-lesson-body p:last-child { margin-bottom: 0; }
.dr-lesson-body h3 { font-size: 14px; font-weight: 700; margin: 8px 0 12px; color: var(--ink); }
.dr-list { display: grid; gap: 10px; margin: 0 0 16px; }
.dr-list-item {
  display: grid; grid-template-columns: 20px 1fr; gap: 8px; align-items: start;
  font-size: 15px; color: var(--ink);
}
.dr-list-item .dr-check-mini { color: var(--go); margin-top: 2px; }
.dr-callout {
  background: var(--lane-soft); border-left: 3px solid var(--lane-d);
  border-radius: var(--r-sm);
  padding: 14px 16px; margin: 0 16px 20px;
}
.dr-callout-title {
  font-size: 11px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--lane-d); margin-bottom: 6px;
}

.dr-action-bar-sticky {
  position: sticky; bottom: calc(64px + var(--sb)); left: 0; right: 0;
  background: linear-gradient(to top, rgba(243,246,251,0.96) 60%, rgba(243,246,251,0));
  padding: 12px 16px 16px;
  display: grid; gap: 8px;
  z-index: 20;
}
body.no-tabs .dr-action-bar-sticky { bottom: var(--sb); }

/* ---------- Learn list ---------- */
.dr-summary {
  background: var(--paper); border-radius: var(--r-md);
  margin: 16px; padding: 16px;
}
.dr-summary-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 10px; }
.dr-summary-head strong { font-size: 14px; font-weight: 700; }
.dr-summary-head span { font-size: 12px; color: var(--ink-2); font-weight: 600; }

.dr-lesson-list {
  background: var(--paper); border-radius: var(--r-md);
  margin: 0 16px 12px;
  overflow: hidden;
}
.dr-lesson-row {
  display: grid; grid-template-columns: 40px 1fr 28px; gap: 12px; align-items: center;
  padding: 12px 16px; min-height: 64px;
  border-top: 1px solid var(--line-2);
  text-align: left; background: transparent; border-left: 0; border-right: 0; border-bottom: 0;
  width: 100%; cursor: pointer;
}
.dr-lesson-row:first-child { border-top: 0; }
.dr-lesson-row:active { background: var(--paper-2); }
.dr-day-pill {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--asphalt-2); color: #fff;
  display: grid; place-items: center;
  font-size: 13px; font-weight: 700;
}
.dr-lesson-row-text { min-width: 0; }
.dr-lesson-row-title { font-size: 14px; font-weight: 700; color: var(--ink); line-height: 1.3; }
.dr-lesson-row-hook { font-size: 12px; color: var(--ink-2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-top: 2px; }
.dr-check {
  width: 24px; height: 24px; border-radius: 50%;
  display: inline-grid; place-items: center;
  color: var(--ink-3);
  border: 1.5px solid var(--ink-3);
}
.dr-check--done { color: #fff; background: var(--go); border-color: var(--go); }

.dr-line { height: 1px; background: var(--line); margin: 0 16px; }
.dr-line-2 { height: 1px; background: var(--line-2); }

.dr-empty {
  text-align: center; color: var(--ink-2);
  padding: 48px 24px; font-size: 14px;
}

/* ---------- Quiz hub ---------- */
.dr-mode-card {
  background: var(--paper); border-radius: var(--r-lg);
  padding: 20px;
  margin: 0 16px 12px;
  display: grid; grid-template-columns: 40px 1fr 8px; gap: 16px; align-items: center;
  cursor: pointer; border: 0; text-align: left; width: calc(100% - 32px);
  position: relative;
}
.dr-mode-card:active { transform: scale(0.99); }
.dr-mode-icon {
  width: 40px; height: 40px; border-radius: 999px;
  background: var(--go-soft); color: var(--go-d);
  display: grid; place-items: center;
}
.dr-mode-title { font-size: 16px; font-weight: 700; color: var(--ink); line-height: 1.25; }
.dr-mode-desc { font-size: 13px; color: var(--ink-2); margin-top: 2px; }
.dr-mode-card-accent {
  width: 8px; height: 100%; border-radius: 0 var(--r-lg) var(--r-lg) 0;
  position: absolute; top: 0; right: 0;
}
.dr-mode-card[aria-disabled="true"] { opacity: 0.5; pointer-events: none; }
.dr-mode-card .dr-shortcut-badge { position: absolute; top: 12px; right: 16px; }

.dr-topic-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px;
  padding: 0 16px;
}
.dr-topic-card {
  background: var(--paper); border-radius: var(--r-md);
  min-height: 88px;
  padding: 14px;
  display: flex; flex-direction: column; gap: 6px;
  cursor: pointer; border: 0; text-align: left;
}
.dr-topic-card:active { transform: scale(0.98); }
.dr-topic-card .dr-topic-name { font-size: 13px; font-weight: 700; color: var(--ink); line-height: 1.25; }
.dr-topic-card .dr-topic-meta { font-size: 11px; color: var(--ink-2); font-weight: 600; }

/* ---------- Quiz player ---------- */
.dr-quiz-bar {
  background: var(--asphalt); color: #fff;
  padding: calc(var(--st) + 10px) 12px 10px;
  display: grid; grid-template-columns: 44px 1fr auto; align-items: center; gap: 8px;
  min-height: calc(56px + var(--st));
}
.dr-quiz-bar .dr-header-action { color: #fff; }
.dr-quiz-counter { text-align: center; font-size: 14px; font-weight: 700; color: #fff; }
.dr-quiz-mode-chip {
  background: var(--asphalt-2); color: #c1d0e0;
  font-size: 11px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase;
  padding: 4px 10px; border-radius: 999px;
}
.dr-q-card {
  background: var(--paper); border-radius: var(--r-lg);
  margin: 20px 16px 12px;
  padding: 20px;
}
.dr-q-text { font-size: 18px; line-height: 1.45; color: var(--ink); font-weight: 600; margin-top: 12px; }
.dr-q-image { display: block; margin: 16px auto 0; max-height: 200px; max-width: 100%; border-radius: var(--r-sm); }

.dr-options { display: grid; gap: 10px; padding: 0 16px; }
.dr-option {
  display: grid; grid-template-columns: 28px 1fr 24px; gap: 12px; align-items: center;
  width: 100%; min-height: 56px;
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--r-md);
  padding: 12px 16px;
  text-align: left;
  font-size: 15px; font-weight: 600; color: var(--ink);
  cursor: pointer;
}
.dr-option:active:not(:disabled) { transform: scale(0.99); background: var(--paper-2); }
.dr-option:disabled { cursor: default; }
.dr-option-letter {
  width: 28px; height: 28px; border-radius: 999px;
  background: var(--line-2); color: var(--ink-2);
  display: grid; place-items: center;
  font-size: 12px; font-weight: 700;
  flex-shrink: 0;
}
.dr-option-mark { display: inline-grid; place-items: center; color: transparent; }
.dr-option--correct {
  background: var(--go); border-color: var(--go); color: #fff;
}
.dr-option--correct .dr-option-letter { background: var(--go-d); color: #fff; }
.dr-option--correct .dr-option-mark { color: #fff; }
.dr-option--wrong {
  background: var(--stop); border-color: var(--stop); color: #fff;
}
.dr-option--wrong .dr-option-letter { background: #a8222b; color: #fff; }
.dr-option--wrong .dr-option-mark { color: #fff; }
.dr-option--reveal {
  background: var(--paper); border: 2px solid var(--go); color: var(--ink);
}
.dr-option--reveal .dr-option-letter { background: var(--go-soft); color: var(--go-d); }
.dr-option--reveal .dr-option-mark { color: var(--go); }

.dr-explain {
  background: var(--go-soft);
  border-radius: var(--r-md);
  margin: 16px 16px 0;
  padding: 14px 16px;
  animation: dr-slide-up 220ms ease both;
}
.dr-explain--bad { background: var(--stop-soft); }
.dr-explain-title { font-size: 11px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-2); margin-bottom: 4px; }
.dr-explain-body { font-size: 14px; line-height: 1.55; color: var(--ink); }

@keyframes dr-slide-up { from { transform: translateY(8px); opacity: 0; } to { transform: none; opacity: 1; } }

.dr-quit-footer {
  position: fixed; left: 0; right: 0; bottom: 0;
  padding: 12px 16px calc(12px + var(--sb));
  background: linear-gradient(to top, var(--paper-2) 60%, rgba(243,246,251,0));
  z-index: 30;
}

/* ---------- Quiz results ---------- */
.dr-results-hero {
  background: var(--go); color: #fff;
  padding: calc(var(--st) + 32px) 20px 24px;
  text-align: center; min-height: 200px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  position: relative;
}
.dr-results-hero--fail { background: var(--stop); }
.dr-results-hero-score { font-size: 48px; font-weight: 700; line-height: 1; }
.dr-results-hero-status {
  font-size: 11px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase;
  color: #fff; margin-top: 8px;
}
.dr-results-hero--fail .dr-results-hero-status { color: var(--lane); }
.dr-results-hero-meta { font-size: 13px; color: rgba(255,255,255,0.86); margin-top: 6px; }

.dr-results-stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px;
  margin: 16px;
}
.dr-results-stats .dr-stat-card { padding: 14px 8px; }

.dr-breakdown, .dr-missed-list { background: var(--paper); border-radius: var(--r-lg); margin: 12px 16px; padding: 20px; }
.dr-breakdown-row, .dr-mastery-row {
  display: grid; grid-template-columns: 1fr auto; gap: 8px 12px;
  padding: 12px 0;
  border-top: 1px solid var(--line-2);
  align-items: center;
}
.dr-breakdown-row:first-of-type, .dr-mastery-row:first-of-type { border-top: 0; }
.dr-breakdown-row .dr-breakdown-name, .dr-mastery-row .dr-mastery-name { font-size: 14px; font-weight: 700; color: var(--ink); }
.dr-breakdown-row .dr-breakdown-score, .dr-mastery-row .dr-mastery-score { font-size: 13px; font-weight: 700; color: var(--ink-2); }
.dr-breakdown-row .dr-progress, .dr-mastery-row .dr-progress { grid-column: 1 / -1; }

.dr-missed-row {
  border-top: 1px solid var(--line-2);
  padding: 12px 0;
}
.dr-missed-row:first-of-type { border-top: 0; }
.dr-missed-row summary {
  cursor: pointer; list-style: none;
  font-size: 14px; font-weight: 600; color: var(--ink);
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 4px 0;
}
.dr-missed-row summary::-webkit-details-marker { display: none; }
.dr-missed-row[open] summary { font-weight: 700; }
.dr-missed-row-body { font-size: 14px; color: var(--ink-2); padding-top: 10px; display: grid; gap: 8px; }
.dr-missed-row-chiprow { display: flex; gap: 6px; flex-wrap: wrap; }

/* ---------- Signs ---------- */
.dr-chip-row {
  display: flex; gap: 8px;
  padding: 12px 16px;
  overflow-x: auto;
  scrollbar-width: none;
}
.dr-chip-row::-webkit-scrollbar { display: none; }
.dr-chip-btn {
  flex-shrink: 0;
  background: var(--paper); color: var(--ink);
  border: 1px solid var(--line);
  font-size: 13px; font-weight: 600;
  padding: 8px 14px; border-radius: 999px;
  cursor: pointer; min-height: 36px;
}
.dr-chip-btn:active { transform: scale(0.97); }
.dr-chip-btn.dr-chip--active { background: var(--asphalt); color: #fff; border-color: var(--asphalt); }
.dr-mustknow {
  background: var(--lane-soft); border-left: 3px solid var(--lane-d);
  border-radius: var(--r-md);
  margin: 0 16px 12px; padding: 14px 16px;
  font-size: 13px; font-weight: 600; color: var(--lane-d);
}
.dr-mustknow button { background: transparent; border: 0; color: var(--lane-d); font-weight: 700; cursor: pointer; padding: 0; text-decoration: underline; }
.dr-sign-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px;
  padding: 0 16px;
}
.dr-sign-card {
  background: var(--paper); border-radius: var(--r-sm);
  aspect-ratio: 1;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px;
  padding: 6px;
  cursor: pointer; border: 0; position: relative;
}
.dr-sign-card:active { transform: scale(0.97); }
.dr-sign-img {
  width: 52px; height: 52px;
  object-fit: contain;
  display: block;
}
.dr-sign-img-fallback {
  width: 52px; height: 52px;
  background: var(--line-2); color: var(--ink-3);
  display: grid; place-items: center;
  border-radius: var(--r-sm);
  font-size: 22px; font-weight: 700;
}
.dr-sign-name { font-size: 11px; font-weight: 600; color: var(--ink); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 100%; text-align: center; }
.dr-sign-studied {
  position: absolute; top: 6px; right: 6px;
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--go); color: #fff;
  display: grid; place-items: center;
  font-size: 10px;
}

/* ---------- Modal / bottom sheet ---------- */
.dr-modal-backdrop {
  position: fixed; inset: 0; background: rgba(22, 32, 46, 0.55);
  z-index: 90; display: flex; align-items: flex-end; justify-content: center;
  animation: dr-fade 180ms ease;
}
@keyframes dr-fade { from { opacity: 0; } to { opacity: 1; } }
.dr-sheet {
  background: var(--paper);
  border-radius: var(--r-xl) var(--r-xl) 0 0;
  width: 100%; max-width: 480px;
  padding: 8px 20px calc(24px + var(--sb));
  max-height: 88dvh; overflow-y: auto;
  animation: dr-sheet-up 220ms ease both;
  position: relative;
}
@keyframes dr-sheet-up { from { transform: translateY(20px); } to { transform: none; } }
.dr-sheet-handle {
  width: 36px; height: 4px; border-radius: 999px; background: var(--line);
  margin: 8px auto 12px;
}
.dr-modal-close {
  position: absolute; top: 8px; right: 8px;
  background: transparent; border: 0; cursor: pointer;
  width: 44px; height: 44px; border-radius: 50%;
  display: grid; place-items: center; color: var(--ink-2);
}
.dr-sheet h2 { font-size: 17px; font-weight: 700; color: var(--ink); margin: 8px 0 8px; }
.dr-sheet p { font-size: 14px; line-height: 1.55; color: var(--ink-2); margin-bottom: 12px; }
.dr-sheet-img {
  display: block; margin: 0 auto 12px;
  max-height: 240px; max-width: 80%;
}
.dr-sheet-actions { display: grid; gap: 8px; margin-top: 8px; }

/* ---------- Onboarding ---------- */
.dr-onb {
  min-height: 100dvh;
  background: var(--asphalt);
  color: #fff;
  padding: calc(var(--st) + 32px) 20px calc(24px + var(--sb));
  display: flex; flex-direction: column; gap: 20px;
  position: relative; overflow: hidden;
}
.dr-onb-stripes {
  position: absolute; top: -20px; right: -40px; width: 220px; height: 220px;
  background: repeating-linear-gradient(45deg, transparent 0 24px, var(--lane) 24px 32px);
  opacity: 0.24;
  pointer-events: none;
}
.dr-onb-wordmark { font-size: 13px; font-weight: 800; letter-spacing: 0.14em; color: var(--lane); }
.dr-onb-wordmark .dr-onb-mark { color: var(--go); margin-right: 4px; }
.dr-onb h1 { font-size: 28px; font-weight: 700; line-height: 1.2; color: #fff; }
.dr-onb-sub { color: #c1d0e0; font-size: 15px; }
.dr-onb-illu {
  display: flex; align-items: center; justify-content: center;
  padding: 8px 0;
}
.dr-onb-ring {
  width: 180px; height: 180px; border-radius: 50%;
  border: 12px solid rgba(19, 177, 110, 0.4);
  display: grid; place-items: center;
}
.dr-onb-ring-label { font-size: 11px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--lane); text-align: center; }
.dr-onb-ring-label strong { display: block; font-size: 28px; color: #fff; }
.dr-onb-bullets { display: grid; gap: 10px; }
.dr-onb-bullet { display: grid; grid-template-columns: 24px 1fr; gap: 10px; align-items: center; font-size: 15px; color: #fff; }
.dr-onb-bullet-icon { width: 24px; height: 24px; border-radius: 50%; background: var(--go); color: #fff; display: grid; place-items: center; }
.dr-onb-footnote { font-size: 11px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; color: var(--ink-3); text-align: center; }
.dr-onb-dots { display: flex; justify-content: center; gap: 8px; padding-top: 8px; }
.dr-onb-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ink-3); opacity: 0.5; }
.dr-onb-dot--active { background: var(--lane); opacity: 1; width: 24px; border-radius: 999px; }
.dr-onb-spacer { flex: 1; min-height: 16px; }
.dr-onb-back { position: absolute; top: calc(var(--st) + 12px); left: 12px; background: transparent; border: 0; color: #fff; padding: 8px; cursor: pointer; min-height: 44px; min-width: 44px; }

/* ---------- Settings ---------- */
.dr-profile {
  background: var(--paper); border-radius: var(--r-lg);
  margin: 16px; padding: 20px;
  display: grid; grid-template-columns: 56px 1fr; gap: 16px; align-items: center;
}
.dr-avatar {
  width: 56px; height: 56px; border-radius: 50%;
  background: var(--go-soft); color: var(--go-d);
  display: grid; place-items: center;
  font-size: 22px; font-weight: 700;
}
.dr-profile-name { font-size: 17px; font-weight: 700; color: var(--ink); }
.dr-profile-sub { font-size: 13px; color: var(--ink-2); margin-top: 2px; }
.dr-sub {
  background: var(--paper); border-radius: var(--r-lg);
  margin: 0 16px 16px; padding: 20px;
  display: grid; gap: 12px;
}
.dr-settings-list {
  background: var(--paper); border-radius: var(--r-md);
  margin: 0 16px 16px;
  overflow: hidden;
}
.dr-settings-row {
  display: grid; grid-template-columns: 1fr auto; gap: 12px; align-items: center;
  padding: 14px 16px;
  border-top: 1px solid var(--line-2);
  min-height: 56px;
  cursor: pointer;
  background: transparent; border-left: 0; border-right: 0; border-bottom: 0;
  width: 100%; text-align: left;
}
.dr-settings-row:first-child { border-top: 0; }
.dr-settings-row:active { background: var(--paper-2); }
.dr-settings-row .dr-settings-label { font-size: 15px; font-weight: 600; color: var(--ink); }
.dr-settings-row .dr-settings-value { font-size: 14px; color: var(--ink-2); }
.dr-toggle {
  width: 48px; height: 28px; border-radius: 999px;
  background: var(--line);
  position: relative; cursor: pointer; border: 0;
  transition: background 200ms ease;
}
.dr-toggle::after {
  content: ""; position: absolute; top: 2px; left: 2px;
  width: 24px; height: 24px; border-radius: 50%; background: #fff;
  box-shadow: 0 1px 3px rgba(0,0,0,0.25);
  transition: left 200ms ease;
}
.dr-toggle[aria-checked="true"] { background: var(--go); }
.dr-toggle[aria-checked="true"]::after { left: 22px; }

/* ---------- Upgrade ---------- */
.dr-upgrade {
  min-height: 100dvh;
  background: var(--asphalt);
  color: #fff;
  display: flex; flex-direction: column;
  /* Sticky CTA stack = primary button (~52px) + ghost button (~52px) + restore (~28px)
     + gaps (~16px) + top/bottom padding (~24px) + safe-area inset.
     Reserve ~200px so the trust-badge row and the last benefit are never clipped. */
  padding-bottom: calc(200px + var(--sb));
  position: relative;
}
.dr-lane-stripe {
  height: 12px;
  background: repeating-linear-gradient(45deg, var(--lane) 0 16px, var(--asphalt) 16px 24px);
}
.dr-upgrade-head {
  padding: calc(var(--st) + 20px) 20px 8px;
  position: relative;
}
.dr-upgrade-close {
  position: absolute; top: calc(var(--st) + 12px); right: 12px;
  background: transparent; border: 0; color: #fff;
  width: 44px; height: 44px; border-radius: 50%;
  display: grid; place-items: center; cursor: pointer;
}
.dr-upgrade-head h1 { font-size: 28px; font-weight: 700; line-height: 1.2; color: #fff; margin-top: 12px; }
.dr-upgrade-sub { font-size: 15px; color: #c1d0e0; margin-top: 8px; }
.dr-lock-icon {
  width: 48px; height: 48px; border-radius: 50%;
  background: rgba(255, 198, 64, 0.2); color: var(--lane);
  display: grid; place-items: center;
}
.dr-price-card {
  background: var(--paper); color: var(--ink);
  border-radius: var(--r-xl);
  margin: 20px; padding: 24px;
  text-align: center;
}
.dr-price-card .dr-price { font-size: 40px; font-weight: 700; line-height: 1; }
.dr-price-card .dr-price-unit { font-size: 15px; color: var(--ink-2); font-weight: 500; }
.dr-price-card .dr-price-foot { font-size: 12px; color: var(--ink-2); margin-top: 8px; font-weight: 600; }
.dr-benefits {
  background: var(--paper); color: var(--ink);
  border-radius: var(--r-lg);
  margin: 0 20px 16px; padding: 20px;
  display: grid; gap: 14px;
}
.dr-benefit-row { display: grid; grid-template-columns: 24px 1fr; gap: 10px; align-items: start; font-size: 14px; color: var(--ink); line-height: 1.4; }
.dr-benefit-row .dr-check-mini { color: var(--go); margin-top: 2px; }
.dr-trust {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px;
  padding: 0 20px 24px;
}
.dr-trust-badge {
  background: rgba(255, 255, 255, 0.06); color: #c1d0e0;
  border-radius: var(--r-sm);
  padding: 10px 8px; text-align: center;
  font-size: 11px; font-weight: 600;
}
.dr-upgrade-sticky {
  position: fixed; left: 0; right: 0; bottom: 0;
  background: var(--asphalt);
  border-top: 4px solid var(--lane);
  padding: 12px 20px calc(12px + var(--sb));
  z-index: 80;
  display: grid; gap: 8px;
}
.dr-upgrade-sticky .dr-cta-primary { background: var(--lane); color: var(--ink); }
.dr-upgrade-sticky .dr-cta-primary:active { background: var(--lane-d); color: #fff; }
.dr-upgrade-sticky .dr-cta-ghost { color: #c1d0e0; }
.dr-upgrade-restore { color: var(--ink-3); font-size: 12px; text-align: center; padding: 8px; cursor: pointer; background: transparent; border: 0; }

/* ---------- Toast ---------- */
#toast-host {
  position: fixed; bottom: calc(80px + var(--sb)); left: 50%; transform: translateX(-50%);
  z-index: 200; pointer-events: none;
  display: grid; gap: 8px;
}
.dr-toast {
  background: var(--asphalt); color: #fff;
  padding: 12px 18px; border-radius: 999px;
  font-size: 13px; font-weight: 600;
  box-shadow: var(--shadow-1);
  animation: dr-toast-in 200ms ease;
  max-width: 88vw;
  text-align: center;
}
.dr-toast--ok { background: var(--go); }
.dr-toast--warn { background: var(--lane); color: var(--ink); }
@keyframes dr-toast-in { from { transform: translateY(8px); opacity: 0; } to { transform: none; opacity: 1; } }

/* ---------- Confetti ---------- */
.dr-confetti { position: fixed; inset: 0; pointer-events: none; z-index: 150; overflow: hidden; }
.dr-confetti span {
  position: absolute; top: 30%; left: 50%;
  width: 8px; height: 12px; border-radius: 2px;
  opacity: 0;
  animation: dr-confetti 480ms ease-out forwards;
}
@keyframes dr-confetti {
  0% { transform: translate(0, 0) rotate(0); opacity: 1; }
  100% { transform: translate(var(--dx), var(--dy)) rotate(360deg); opacity: 0; }
}

/* ---------- Progress screen ---------- */
.dr-readiness-full {
  background: var(--paper); border-radius: var(--r-lg);
  margin: 16px; padding: 20px;
  text-align: center;
}
.dr-sub-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 16px; }
.dr-sub-stat {
  background: var(--paper-2); border-radius: var(--r-md);
  padding: 12px; text-align: center;
}
.dr-sub-stat .dr-stat-value { font-size: 16px; }
.dr-testdate, .dr-mastery, .dr-history, .dr-missed-bank, .dr-danger {
  background: var(--paper); border-radius: var(--r-lg);
  margin: 0 16px 12px; padding: 20px;
}
.dr-testdate { display: flex; justify-content: space-between; align-items: center; gap: 12px; font-size: 14px; }
.dr-history-row {
  display: grid; grid-template-columns: auto 1fr auto; gap: 12px; align-items: center;
  padding: 12px 0;
  border-top: 1px solid var(--line-2);
  cursor: pointer; background: transparent; border-left: 0; border-right: 0; border-bottom: 0;
  width: 100%; text-align: left;
}
.dr-history-row:first-of-type { border-top: 0; }
.dr-history-date { font-size: 12px; color: var(--ink-2); }
.dr-history-mode { font-size: 14px; font-weight: 700; color: var(--ink); }
.dr-history-score { display: flex; align-items: center; gap: 8px; }
.dr-danger { border: 1px solid var(--stop-soft); }

.dr-check-mini {
  display: inline-grid; place-items: center;
  width: 20px; height: 20px;
}

.dr-section-h { padding: 0 16px 8px; font-size: 14px; font-weight: 700; color: var(--ink-2); }

/* ---------- Dark mode ---------- */
.dr-dark {
  --paper: #0f1419;
  --paper-2: #1a2230;
  --ink: #e8edf4;
  --ink-2: #8ba8bc;
  --ink-3: #5d6b80;
  --line: #2a3545;
  --line-2: #1f2c3e;
  --asphalt: #0a0f15;
  --asphalt-2: #1a2230;
  --go-soft: #0e3525;
  --lane-soft: #3d2f00;
  --stop-soft: #3d1115;
  --shadow-1: 0 4px 16px rgba(0, 0, 0, 0.3);
}
.dr-dark body,
.dr-dark html { background: var(--paper-2); }
.dr-dark .dr-tabbar { background: var(--paper); border-color: var(--line); }
.dr-dark .dr-hero-card { background: var(--paper); }
.dr-dark .dr-card, .dr-dark .dr-cta-card { background: var(--paper); }
.dr-dark .dr-option { background: var(--paper); border-color: var(--line); }
.dr-dark .dr-modal-backdrop { background: rgba(0, 0, 0, 0.6); }
.dr-dark .dr-sheet { background: var(--paper); }
.dr-dark .dr-input { background: var(--paper-2); border-color: var(--line); color: var(--ink); }
.dr-dark .dr-lesson-row, .dr-dark .dr-mode-card, .dr-dark .dr-topic-card { background: var(--paper); }
.dr-dark .dr-cta-secondary { background: var(--paper-2); color: var(--ink); }
.dr-dark .dr-settings-row { border-color: var(--line); }
.dr-dark .dr-danger { border-color: var(--stop-soft); }

/* ---------- Animated ring ---------- */
.dr-ring--anim {
  transition: --pct 800ms ease-out;
}
@supports not (transition: --pct 0s) {
  .dr-ring--anim { animation: dr-ring-fill 800ms ease-out forwards; }
}

/* ---------- Quiz timer ---------- */
.dr-quiz-timer {
  font-size: 14px; font-weight: 700; color: var(--go);
  background: var(--go-soft); padding: 4px 10px;
  border-radius: 999px; white-space: nowrap;
}
.dr-quiz-timer--warn { color: var(--stop); background: var(--stop-soft); animation: dr-pulse 1s ease infinite; }
@keyframes dr-pulse { 50% { opacity: 0.5; } }

/* ---------- Countdown card ---------- */
.dr-countdown-card {
  display: flex; align-items: center; gap: 14px;
  background: var(--paper); border-radius: var(--r-lg);
  margin: 0 16px 12px; padding: 16px 20px;
}
.dr-countdown-num {
  font-size: 36px; font-weight: 800; line-height: 1;
  color: var(--go); min-width: 56px; text-align: center;
}
.dr-countdown-label { font-size: 14px; color: var(--ink-2); font-weight: 600; }

/* ---------- Cheatsheets ---------- */
.dr-cheat-card {
  background: var(--paper); border-radius: var(--r-lg);
  margin: 0 16px 10px; overflow: hidden;
}
.dr-cheat-summary {
  display: flex; justify-content: space-between; align-items: center;
  padding: 16px; cursor: pointer; list-style: none;
}
.dr-cheat-summary::-webkit-details-marker { display: none; }
.dr-cheat-title { font-size: 15px; font-weight: 700; margin-top: 6px; }
.dr-cheat-toggle { transition: transform 200ms; }
details[open] > .dr-cheat-summary .dr-cheat-toggle { transform: rotate(90deg); }
.dr-cheat-body { padding: 0 16px 16px; }
.dr-cheat-desc { font-size: 13px; color: var(--ink-2); margin-bottom: 12px; }

/* ---------- Flashcards ---------- */
.dr-fc-counter {
  text-align: center; font-size: 13px; color: var(--ink-2);
  font-weight: 600; padding: 8px;
}
.dr-fc-card {
  perspective: 600px; margin: 16px;
  height: 320px; cursor: pointer;
}
.dr-fc-inner {
  position: relative; width: 100%; height: 100%;
  transition: transform 400ms ease;
  transform-style: preserve-3d;
}
.dr-fc--flipped .dr-fc-inner { transform: rotateY(180deg); }
.dr-fc-front, .dr-fc-back {
  position: absolute; inset: 0;
  backface-visibility: hidden;
  background: var(--paper); border-radius: var(--r-lg);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  padding: 24px; text-align: center;
  box-shadow: var(--shadow-1);
}
.dr-fc-back { transform: rotateY(180deg); }
.dr-fc-img { width: 120px; height: 120px; object-fit: contain; margin-bottom: 16px; }
.dr-fc-prompt { font-size: 13px; color: var(--ink-3); margin-top: 8px; }
.dr-fc-back h3 { font-size: 18px; margin-bottom: 8px; }
.dr-fc-back p { font-size: 13px; color: var(--ink-2); margin-top: 10px; }
.dr-fc-nav {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 12px; padding: 0 16px;
}

/* ---------- Achievements ---------- */
.dr-badge-summary {
  text-align: center; font-size: 14px; font-weight: 600;
  color: var(--ink-2); padding: 12px 16px;
}
.dr-badge-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: 10px; padding: 0 16px;
}
.dr-badge-card {
  background: var(--paper); border-radius: var(--r-lg);
  padding: 16px; text-align: center;
  position: relative; opacity: 0.45;
  border: 2px solid var(--line);
}
.dr-badge--earned { opacity: 1; border-color: var(--lane); }
.dr-badge-icon { margin-bottom: 8px; color: var(--ink-3); }
.dr-badge--earned .dr-badge-icon { color: var(--lane); }
.dr-badge-name { font-size: 14px; font-weight: 700; }
.dr-badge-desc { font-size: 11px; color: var(--ink-2); margin-top: 4px; }
.dr-badge-check {
  position: absolute; top: 8px; right: 8px;
  color: var(--go); width: 18px; height: 18px;
}

/* ---------- Leaderboard ---------- */
.dr-lb-list {
  background: var(--paper); border-radius: var(--r-lg);
  margin: 16px; overflow: hidden;
}
.dr-lb-row {
  display: grid; grid-template-columns: 40px 1fr auto;
  align-items: center; padding: 14px 16px;
  border-bottom: 1px solid var(--line-2);
  font-size: 14px;
}
.dr-lb-row:last-child { border-bottom: 0; }
.dr-lb-rank { font-weight: 800; color: var(--ink-2); }
.dr-lb-medal--1 .dr-lb-rank { color: #FFD700; }
.dr-lb-medal--2 .dr-lb-rank { color: #C0C0C0; }
.dr-lb-medal--3 .dr-lb-rank { color: #CD7F32; }
.dr-lb-name { font-weight: 600; }
.dr-lb-score { font-weight: 700; color: var(--go); }

/* ---------- Study Plan ---------- */
.dr-plan-day {
  background: var(--paper); border-radius: var(--r-lg);
  margin: 0 16px 10px; padding: 16px;
}
.dr-plan-day--today { border-left: 4px solid var(--go); }
.dr-plan-date {
  font-size: 13px; font-weight: 700; color: var(--ink-2);
  margin-bottom: 10px; text-transform: uppercase; letter-spacing: 0.04em;
}
.dr-plan-day--today .dr-plan-date { color: var(--go); }
.dr-plan-item {
  display: flex; align-items: center; gap: 10px;
  background: transparent; border: 0; padding: 8px 0;
  font: inherit; color: var(--ink); cursor: pointer;
  width: 100%; text-align: left; font-size: 14px;
}
.dr-plan-item--done { text-decoration: line-through; color: var(--ink-3); }
.dr-plan-item .dr-check { width: 18px; height: 18px; flex-shrink: 0; }

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

:focus-visible {
  outline: 2px solid var(--go);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Video grid */
.dr-video-grid { display: grid; grid-template-columns: 1fr; gap: 12px; padding: 0 16px 16px; }
@media (min-width: 480px) { .dr-video-grid { grid-template-columns: 1fr 1fr; } }
.dr-video-card { background: var(--card); border: none; border-radius: 12px; overflow: hidden; text-align: left; cursor: pointer; padding: 0; }
.dr-video-thumb { position: relative; width: 100%; aspect-ratio: 16/9; background-size: cover; background-position: center; background-color: var(--bg); display: flex; align-items: center; justify-content: center; }
.dr-video-play { width: 44px; height: 44px; background: rgba(0,0,0,0.65); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: #fff; }
.dr-video-play svg { width: 20px; height: 20px; margin-left: 2px; }
.dr-video-dur { position: absolute; bottom: 6px; right: 6px; background: rgba(0,0,0,0.75); color: #fff; font-size: 11px; padding: 2px 6px; border-radius: 4px; }
.dr-video-title { padding: 10px 12px; font-size: 13px; font-weight: 500; color: var(--text); line-height: 1.3; }
.dr-video-modal { max-width: 640px; margin: 0 auto; }

/* Quick-fire countdown bar */
.dr-qf-bar { height: 4px; background: var(--asphalt-2); margin: 0 16px 8px; border-radius: 2px; overflow: hidden; }
.dr-qf-fill { height: 100%; width: 100%; background: var(--go); border-radius: 2px; transform-origin: left; will-change: transform; }
.dr-qf-fill--warn { background: var(--stop); }

/* Flag button on quiz questions */
.dr-q-card-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.dr-flag-btn { background: none; border: none; color: var(--asphalt-2); cursor: pointer; padding: 4px; border-radius: 6px; flex-shrink: 0; }
.dr-flag-btn:hover { background: var(--asphalt-2); color: var(--text); }
.dr-flag-btn--active { color: #f59e0b; }
.dr-flag-btn--active svg { fill: #f59e0b; stroke: #f59e0b; }

/* Streak calendar */
.dr-streak-cal { padding: 0 16px 12px; }
.dr-cal-grid { display: grid; grid-template-columns: repeat(8, 1fr); grid-template-rows: repeat(7, 1fr); grid-auto-flow: column; gap: 3px; }
.dr-cal-labels { display: grid; grid-template-rows: repeat(7, 1fr); gap: 3px; position: absolute; left: 16px; font-size: 10px; color: var(--asphalt-2); line-height: 1; }
.dr-streak-cal { position: relative; padding-left: 30px; }
.dr-cal-cell { width: 100%; aspect-ratio: 1; border-radius: 3px; }
.dr-cal-cell--0 { background: var(--asphalt-2); opacity: 0.25; }
.dr-cal-cell--1 { background: var(--go); opacity: 0.4; }
.dr-cal-cell--2 { background: var(--go); opacity: 0.7; }
.dr-cal-cell--3 { background: var(--go); opacity: 1; }
.dr-cal-cell--future { visibility: hidden; }
.dr-streak-row { display: flex; justify-content: space-between; padding: 10px 0 0; font-size: 13px; color: var(--text); }
.dr-streak-row strong { font-size: 18px; font-weight: 700; color: var(--go); margin-right: 4px; }

/* Read-aloud speaker button */
.dr-q-card-actions { display: flex; align-items: center; gap: 2px; flex-shrink: 0; }
.dr-speak { color: var(--asphalt-2); }
.dr-speak--on { color: var(--lane); }
.dr-speak--on svg { animation: dr-speak-pulse 1s ease-in-out infinite; }
@keyframes dr-speak-pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }
@media (prefers-reduced-motion: reduce) { .dr-speak--on svg { animation: none; } }

/* Wrong-answer explanation (why your pick was wrong) */
.dr-explain-pick { margin-top: 8px; padding-top: 8px; border-top: 1px dashed var(--asphalt-2); font-size: 13px; line-height: 1.45; color: var(--text); }
.dr-explain-pick-label { font-weight: 600; color: var(--stop); }

/* Cheat sheet (screen + print) */
.dr-sheet { padding: 8px 16px 16px; color: var(--text); }
.dr-sheet-head h1 { font-size: 22px; font-weight: 800; letter-spacing: -0.02em; margin: 0 0 4px; }
.dr-sheet-sub { color: var(--fog); font-size: 13px; margin: 0 0 16px; }
.dr-sheet-section { margin-bottom: 16px; break-inside: avoid; }
.dr-sheet-section h3 { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--go); margin: 0 0 8px; padding-bottom: 4px; border-bottom: 2px solid var(--go); }
.dr-sheet-rows { display: flex; flex-direction: column; gap: 0; }
.dr-sheet-row { display: flex; justify-content: space-between; gap: 12px; padding: 6px 0; border-bottom: 1px solid var(--asphalt-2); font-size: 13px; align-items: baseline; }
.dr-sheet-row:last-child { border-bottom: none; }
.dr-sheet-key { color: var(--fog); flex-shrink: 0; }
.dr-sheet-val { font-weight: 600; text-align: right; }
.dr-sheet-signs { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.dr-sheet-sign { display: flex; flex-direction: column; align-items: center; gap: 3px; text-align: center; }
.dr-sheet-sign img { width: 100%; max-width: 56px; height: auto; }
.dr-sheet-sign span { font-size: 9px; line-height: 1.2; color: var(--fog); }
.dr-sheet-foot { text-align: center; color: var(--fog); font-size: 12px; margin-top: 20px; }
@media print {
  .dr-no-print, .dr-tabbar, #toast-host { display: none !important; }
  body, .dr-app, #app { background: #fff !important; color: #000 !important; }
  .dr-sheet { padding: 0; color: #000; font-size: 11px; }
  .dr-sheet-head h1 { font-size: 18px; }
  .dr-sheet-section { margin-bottom: 10px; }
  .dr-sheet-section h3 { color: #000; border-bottom-color: #000; font-size: 10px; }
  .dr-sheet-row { border-bottom-color: #ccc; padding: 3px 0; font-size: 10px; }
  .dr-sheet-key, .dr-sheet-sub, .dr-sheet-sign span, .dr-sheet-foot { color: #444; }
  .dr-sheet-signs { grid-template-columns: repeat(6, 1fr); }
}

/* Road Trip journey map */
.dr-garage { margin: 4px 16px 8px; padding: 14px; background: var(--card); border-radius: var(--r-lg, 14px); }
.dr-garage-head { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 10px; }
.dr-garage-head strong { font-size: 17px; font-weight: 800; }
.dr-garage-xp { color: var(--fog); font-size: 13px; }
.dr-garage-count { font-size: 12px; color: var(--go); font-weight: 600; }
.dr-garage-row { display: flex; gap: 10px; overflow-x: auto; padding-bottom: 4px; scrollbar-width: none; }
.dr-garage-row::-webkit-scrollbar { display: none; }
.dr-garage-car { flex: 0 0 auto; width: 72px; display: flex; flex-direction: column; align-items: center; gap: 2px; }
.dr-garage-car svg { width: 64px; height: 32px; }
.dr-garage-car span { font-size: 9px; text-align: center; color: var(--text); line-height: 1.15; }
.dr-garage-car--locked span { color: var(--asphalt-2); }
.dr-journey-hint { color: var(--fog); font-size: 12px; margin: 0 16px 12px; }
.dr-road { padding: 0 16px 16px; display: flex; flex-direction: column; gap: 12px; }
.dr-road-unit { background: var(--card); border-radius: var(--r-lg, 14px); padding: 14px; border-left: 3px solid var(--asphalt-2); }
.dr-road-unit--done { border-left-color: var(--go); }
.dr-road-unit-head { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }
.dr-road-unit-head > div:last-child { min-width: 0; }
.dr-road-unit-name { font-weight: 700; font-size: 14px; }
.dr-road-unit-meta { font-size: 11px; color: var(--fog); margin-top: 1px; }
.dr-road-stops { display: flex; flex-wrap: wrap; gap: 6px; }
.dr-road-stop { width: 34px; height: 34px; border-radius: 50%; border: 2px solid var(--asphalt-2); background: transparent; color: var(--fog); font-size: 12px; font-weight: 600; cursor: pointer; display: flex; align-items: center; justify-content: center; }
.dr-road-stop--done { border-color: var(--go); background: var(--go); color: #fff; }
.dr-road-stop--quiz { border-style: dashed; border-color: var(--lane); color: var(--lane); }
.dr-road-stop--quiz.dr-road-stop--done { border-style: solid; border-color: var(--go); color: #fff; }
.dr-road-stop svg { width: 14px; height: 14px; }

/* Update-available banner (service worker) */
.dr-update-banner {
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 9999;
  display: flex; align-items: center; gap: 12px;
  padding: 14px 16px calc(14px + env(safe-area-inset-bottom, 0px));
  background: var(--go); color: #fff;
  box-shadow: 0 -6px 24px rgba(0,0,0,0.28);
  transform: translateY(110%); transition: transform 0.32s cubic-bezier(0.22,1,0.36,1);
}
.dr-update-banner--in { transform: translateY(0); }
.dr-update-text { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.dr-update-text strong { font-size: 14px; font-weight: 700; line-height: 1.2; }
.dr-update-text span { font-size: 12px; opacity: 0.92; line-height: 1.3; }
.dr-update-btn {
  flex-shrink: 0; background: #fff; color: var(--go-d, #0a7d3c);
  border: none; border-radius: 999px; padding: 10px 18px;
  font-size: 14px; font-weight: 700; cursor: pointer;
}
.dr-update-btn:active { transform: scale(0.97); }
@media (prefers-reduced-motion: reduce) { .dr-update-banner { transition: none; } }