:root {
  --bg: #0a0c0b;
  --fg: #eef1ee;
  --fg-dim: rgba(238,241,238,0.62);
  --fg-faint: rgba(238,241,238,0.38);
  --accent: #7fb08a;
  --line: rgba(238,241,238,0.14);
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Helvetica Neue", Arial, sans-serif;
  height: 100%;
  overflow: hidden;
}

.screen { width: 100%; height: 100%; }

/* ---------- Onboarding ---------- */
#onboarding {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(32px + var(--safe-top)) 28px calc(32px + var(--safe-bottom));
  overflow-y: auto;
}

.onb-wrap {
  max-width: 420px;
  width: 100%;
  text-align: center;
}

.onb-mark {
  font-size: 32px;
  color: var(--accent);
  margin-bottom: 8px;
}

.onb-wrap h1 {
  font-size: 32px;
  letter-spacing: 0.02em;
  margin: 0 0 6px;
  font-weight: 600;
}

.onb-sub {
  color: var(--fg-dim);
  margin: 0 0 36px;
  font-size: 15px;
}

.onb-points {
  display: flex;
  flex-direction: column;
  gap: 20px;
  text-align: left;
  margin-bottom: 36px;
}

.onb-point {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.onb-num {
  font-size: 12px;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.08em;
  padding-top: 2px;
  flex: none;
  width: 28px;
}

.onb-point p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.5;
  color: var(--fg);
}

.onb-start {
  width: 100%;
  padding: 15px 0;
  border-radius: 999px;
  border: none;
  background: var(--fg);
  color: #0a0c0b;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
}

.onb-start:active { opacity: 0.85; }

.onb-footnote {
  margin-top: 16px;
  font-size: 11.5px;
  color: var(--fg-faint);
  line-height: 1.4;
}

/* ---------- Feed ---------- */
.feed-screen {
  height: 100%;
  overflow-y: scroll;
  scroll-snap-type: y mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.feed-screen::-webkit-scrollbar { display: none; }

.verse-card {
  position: relative;
  height: 100%;
  width: 100%;
  scroll-snap-align: start;
  scroll-snap-stop: always;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(64px + var(--safe-top)) 64px calc(96px + var(--safe-bottom)) 24px;
  border-bottom: 1px solid var(--line);
}

.verse-inner {
  max-width: 540px;
}

.verse-chapter-tag {
  display: inline-block;
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}

.verse-text {
  font-size: 21px;
  line-height: 1.5;
  font-weight: 400;
  color: var(--fg);
  margin: 0 0 16px;
}

.verse-pali-preview {
  font-size: 14px;
  color: var(--fg-faint);
  margin: 0;
  font-style: italic;
}

.verse-tap-hint {
  position: absolute;
  bottom: calc(28px + var(--safe-bottom));
  left: 24px;
  font-size: 11px;
  color: var(--fg-faint);
  letter-spacing: 0.04em;
}

/* side action rail */
.verse-actions {
  position: absolute;
  right: 10px;
  bottom: calc(90px + var(--safe-bottom));
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
}

.action-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  background: none;
  border: none;
  color: var(--fg);
  cursor: pointer;
  padding: 0;
}

.action-btn svg {
  width: 26px;
  height: 26px;
  stroke: var(--fg);
  fill: none;
  stroke-width: 1.6;
}

.action-btn.liked svg {
  fill: var(--accent);
  stroke: var(--accent);
}

.action-count {
  font-size: 10.5px;
  color: var(--fg-dim);
}

/* progress rail — dot-per-chapter instead of a single bar */
.feed-progress {
  position: fixed;
  top: calc(14px + var(--safe-top));
  left: 20px;
  right: 20px;
  height: 2px;
  background: var(--line);
  z-index: 5;
  pointer-events: none;
}
.feed-progress-bar {
  height: 100%;
  background: var(--accent);
  width: 0%;
  transition: width 0.15s ease;
}
.feed-progress-label {
  position: fixed;
  top: calc(22px + var(--safe-top));
  right: 20px;
  font-size: 10.5px;
  letter-spacing: 0.06em;
  color: var(--fg-faint);
  z-index: 5;
  pointer-events: none;
}

/* ---------- Detail sheet ---------- */
.sheet[hidden] {
  display: none !important;
}

.sheet {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: flex;
  align-items: flex-end;
}

.sheet-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.6);
}

.sheet-panel {
  position: relative;
  z-index: 1;
  width: 100%;
  max-height: 82vh;
  background: #121412;
  border-top-left-radius: 20px;
  border-top-right-radius: 20px;
  padding: 18px 26px calc(28px + var(--safe-bottom));
  display: flex;
  flex-direction: column;
  box-shadow: 0 -8px 40px rgba(0,0,0,0.5);
}

.sheet-close {
  position: absolute;
  top: 10px;
  right: 14px;
  background: none;
  border: none;
  color: var(--fg-dim);
  font-size: 26px;
  line-height: 1;
  cursor: pointer;
  padding: 6px;
}

.sheet-scroll {
  overflow-y: auto;
  padding-top: 22px;
}

.sheet-kicker {
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}

.sheet-chapter-title {
  font-size: 19px;
  margin: 0 0 10px;
  font-weight: 600;
}

.sheet-chapter-summary {
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--fg-dim);
  margin: 0 0 20px;
}

.sheet-divider {
  height: 1px;
  background: var(--line);
  margin-bottom: 20px;
}

.sheet-label {
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--fg-faint);
  margin-bottom: 8px;
}

.sheet-pali {
  font-size: 18px;
  line-height: 1.7;
  margin: 0 0 22px;
  color: var(--fg);
  font-style: italic;
}

.sheet-translation {
  font-size: 15.5px;
  line-height: 1.6;
  margin: 0;
  color: var(--fg);
}

.sheet-note-wrap .sheet-note {
  width: 100%;
  background: #1a1c1a;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: var(--fg);
  font-size: 14px;
  padding: 10px 12px;
  font-family: inherit;
  resize: vertical;
}

@media (min-width: 640px) {
  .sheet { align-items: center; justify-content: center; }
  .sheet-panel {
    width: 460px;
    max-height: 80vh;
    border-radius: 20px;
  }
}