:root {
  --bg: #0d0b1a;
  --panel-bg: #12102a;
  --panel-bg-alt: #1a1535;
  --border-default: #2a2245;
  --gold: #c9a84c;
  --gold-dark: #b8923e;
  --gold-gradient: linear-gradient(135deg, #c9a84c 0%, #b8923e 100%);
  --lavender: #9b7fd4;
  --text-primary: #f0eaf8;
  --text-secondary: #a89cc0;
  --text-muted: #5a5070;
  --glow: 0 4px 24px rgba(155, 127, 212, 0.08);
  --gold-glow: 0 0 12px rgba(201, 168, 76, 0.3);
  --radial-bloom: radial-gradient(circle at 50% 30%, #1a0f2e 0%, #0d0b1a 80%);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: #02010a;
  color: var(--text-primary);
  font-family: "DM Sans", ui-sans-serif, system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  outline: none;
}

.phone-shell {
  width: min(100vw, 393px);
  min-height: 852px;
  margin: 0 auto;
  background: var(--bg);
  background-image: var(--radial-bloom);
  position: relative;
  overflow-y: auto;
  padding-bottom: 48px;
  border: 1px solid var(--border-default);
  box-shadow: 0 10px 50px rgba(0, 0, 0, 0.6);
}

.status-bar {
  height: 54px;
  background: transparent;
  position: relative;
  user-select: none;
}

.status-time {
  position: absolute;
  left: 28px;
  top: 18px;
  font-weight: 700;
  font-size: 13px;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}

.dynamic-island {
  position: absolute;
  width: 70px;
  height: 22px;
  left: 50%;
  top: 16px;
  transform: translateX(-50%);
  border-radius: 999px;
  background: #000000;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.home-indicator {
  position: absolute;
  width: 103px;
  height: 5px;
  left: 50%;
  bottom: 29px;
  transform: translateX(-50%);
  background: var(--text-muted);
  border-radius: 999px;
  user-select: none;
}

.screen {
  display: none;
  min-height: 798px;
}

.screen.active {
  display: block;
}

.home-content {
  padding: 100px 24px 0;
  text-align: center;
}

.home-title,
.page-title,
.step-intro h2,
.practice-card h2,
.practice-card .quote,
.data-card h2 {
  font-variant-numeric: lining-nums;
  font-feature-settings: "lnum" 1;
}

.home-title {
  margin: 0;
  font-size: 42px;
  line-height: 1.1;
  font-weight: 700;
  font-family: "Cormorant Garamond", serif;
  color: var(--gold);
  text-shadow: 0 2px 10px rgba(201, 168, 76, 0.15);
}

.home-subtitle {
  margin: 20px 0 60px;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.5;
}

.menu-card {
  width: 100%;
  min-height: 76px;
  border: 1px solid var(--border-default);
  background: var(--panel-bg);
  border-radius: 22px;
  margin-bottom: 20px;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  text-align: left;
  cursor: pointer;
  color: var(--text-primary);
  box-shadow: var(--glow);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.menu-card:hover,
.menu-card:active {
  border-color: var(--lavender);
  background: var(--panel-bg-alt);
  transform: translateY(-2px);
}

.menu-card.current {
  background: var(--panel-bg-alt);
  border: 2px solid var(--gold);
  box-shadow: var(--glow), var(--gold-glow);
}

.menu-card.inactive {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
}

.menu-card.inactive:hover,
.menu-card.inactive:active {
  border-color: var(--border-default);
  background: var(--panel-bg);
  transform: none;
}

.menu-card.inactive .chevron {
  color: var(--text-muted);
}

.menu-card.inactive .menu-main {
  color: var(--text-secondary);
}

.menu-card.inactive .menu-sub {
  color: var(--text-muted);
}

.menu-main {
  display: block;
  font-size: 18px;
  line-height: 1.2;
  font-weight: 600;
  letter-spacing: 0.03em;
}

.menu-sub {
  display: block;
  margin-top: 8px;
  font-size: 13px;
  font-weight: 400;
  color: var(--text-secondary);
}

.chevron {
  font-size: 24px;
  line-height: 1;
  color: var(--gold);
  font-weight: 300;
}

.page-header {
  position: relative;
  padding: 48px 24px 0 64px;
}

.back-icon {
  position: absolute;
  left: 20px;
  top: 42px;
  border: 0;
  background: transparent;
  padding: 8px;
  font-size: 32px;
  line-height: 0.7;
  color: var(--lavender);
  cursor: pointer;
  transition: all 0.2s ease;
}

.back-icon:hover,
.back-icon:active {
  color: var(--gold);
}

.page-title {
  margin: 0;
  font-size: 32px;
  line-height: 1.1;
  font-weight: 700;
  font-family: "Cormorant Garamond", serif;
  color: var(--gold);
  letter-spacing: 0.01em;
}

.page-subtitle {
  margin: 8px 0 0;
  color: var(--text-secondary);
  font-size: 14px;
}

.plan-list {
  margin: 36px 20px 0;
}

.day-card {
  width: 100%;
  min-height: 58px;
  border-radius: 16px;
  border: 1px solid var(--border-default);
  background: var(--panel-bg);
  display: grid;
  grid-template-columns: 62px 1fr;
  align-items: center;
  gap: 14px;
  padding: 12px;
  margin-bottom: 12px;
  text-align: left;
  cursor: pointer;
  color: var(--text-primary);
  box-shadow: var(--glow);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.day-card:hover,
.day-card:active {
  border-color: var(--border-default);
  background: var(--panel-bg-alt);
  transform: translateY(-1px);
}

.day-card.active-day {
  border-color: var(--gold);
  background: var(--panel-bg-alt);
  box-shadow: var(--glow), var(--gold-glow);
}

.day-pill {
  width: 62px;
  height: 30px;
  border-radius: 16px;
  background: var(--panel-bg-alt);
  border: 1px solid var(--border-default);
  display: grid;
  place-items: center;
  font-size: 10px;
  font-weight: 700;
  color: var(--text-secondary);
}

.day-card.active-day .day-pill {
  background: rgba(201, 168, 76, 0.12);
  border-color: var(--gold);
  color: var(--gold);
}

.day-title {
  display: block;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: 4px;
}

.day-detail {
  display: block;
  color: var(--text-secondary);
  font-size: 11px;
  white-space: normal;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.4;
}

.step-row {
  margin: 36px 20px 0;
  min-height: 58px;
  background: var(--panel-bg);
  border: 1px solid var(--border-default);
  border-radius: 22px;
  display: flex;
  align-items: center;
  padding: 0 20px;
  gap: 10px;
  box-shadow: var(--glow);
}

.step-label {
  font-size: 14px;
  font-weight: 700;
  color: var(--gold);
  margin-right: auto;
}

.step-optional {
  font-size: 11px;
  color: var(--text-secondary);
  font-weight: 500;
  margin-right: auto;
  background: rgba(155, 127, 212, 0.15);
  border: 1px solid rgba(155, 127, 212, 0.25);
  padding: 2px 8px;
  border-radius: 99px;
}

.nav-button {
  min-width: 80px;
  height: 36px;
  border: 0;
  border-radius: 999px;
  background: var(--gold-gradient);
  color: var(--bg);
  font-size: 11px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 2px 10px rgba(201, 168, 76, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-button:active {
  transform: scale(0.95);
}

.nav-button.secondary {
  background: transparent;
  color: var(--lavender);
  border: 1px solid var(--lavender);
  box-shadow: none;
}

.nav-button.secondary:active {
  background: rgba(155, 127, 212, 0.1);
}

.step-intro {
  margin: 32px 24px 20px;
}

.step-intro h2 {
  margin: 0 0 12px;
  font-size: 24px;
  line-height: 1.2;
  font-weight: 700;
  font-family: "Cormorant Garamond", serif;
  color: var(--text-primary);
}

.step-intro p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.5;
}

.vowel-table {
  margin: 24px 20px 0;
}

.vowel-row {
  display: grid;
  grid-template-columns: 64px 1fr 1fr;
  align-items: center;
  min-height: 46px;
  border: 1px solid var(--border-default);
  background: var(--panel-bg);
  padding: 0 20px;
  font-size: 13px;
  margin-bottom: 6px;
  border-radius: 13px;
  box-shadow: var(--glow);
}

.vowel-row.header {
  min-height: 40px;
  background: var(--panel-bg-alt);
  color: var(--lavender);
  font-weight: 700;
  margin-bottom: 6px;
  border-radius: 14px;
  border-color: var(--border-default);
  text-transform: uppercase;
  font-size: 10px;
  letter-spacing: 0.05em;
}

.vowel-row strong {
  font-weight: 600;
  color: var(--text-primary);
}

.vowel-sound {
  color: var(--text-secondary);
}

.practice-card {
  margin: 48px 20px 0;
  min-height: 270px;
  border-radius: 26px;
  border: 1px solid var(--border-default);
  background: var(--panel-bg);
  display: grid;
  place-items: center;
  text-align: center;
  padding: 36px 24px;
  box-shadow: var(--glow);
}

.practice-card h2 {
  margin: 0;
  font-size: 26px;
  line-height: 1.3;
  font-weight: 700;
  font-family: "Cormorant Garamond", serif;
  color: var(--gold);
}

.practice-card .quote {
  display: block;
  margin: 24px 0 28px;
  font-size: 34px;
  line-height: 1.15;
  font-weight: 700;
  font-family: "Cormorant Garamond", serif;
  color: var(--text-primary);
  font-style: italic;
}

.practice-card .instruction {
  display: block;
  color: var(--lavender);
  font-size: 20px;
  line-height: 1.2;
  font-weight: 600;
}

.data-card {
  margin: 48px 20px 0;
  min-height: 380px;
  border-radius: 26px;
  border: 1px solid var(--border-default);
  background: var(--panel-bg);
  padding: 40px 20px 28px;
  text-align: center;
  box-shadow: var(--glow);
}

.data-card h2 {
  margin: 0;
  font-size: 28px;
  line-height: 1.2;
  font-weight: 700;
  font-family: "Cormorant Garamond", serif;
  color: var(--gold);
}

.chip-row {
  display: flex;
  justify-content: center;
  gap: 13px;
  margin: 28px 0;
}

.chip {
  min-width: 79px;
  height: 36px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid var(--border-default);
  background: var(--panel-bg-alt);
  display: grid;
  place-items: center;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-primary);
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
}

.chip:hover {
  border-color: var(--lavender);
  color: var(--gold);
}

.chip:active {
  background: var(--gold-gradient);
  color: var(--bg);
  border-color: var(--gold);
}

.tracker-card-container {
  margin: 24px 20px 0;
}

.tracker-card {
  border-radius: 26px;
  border: 1px solid var(--border-default);
  background: var(--panel-bg);
  padding: 22px 18px;
  box-shadow: var(--glow);
}

.notes-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 8px;
  margin-bottom: 24px;
}

.note-btn {
  aspect-ratio: 1;
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--border-default);
  background: var(--panel-bg-alt);
  color: var(--text-secondary);
  font-size: 11px;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.15s ease;
  padding: 0;
}

.note-btn:hover {
  border-color: var(--lavender);
  color: var(--text-primary);
}

.note-btn:active {
  transform: scale(0.92);
}

.note-btn.practiced {
  background: var(--gold-gradient);
  color: var(--bg);
  border-color: var(--gold);
  box-shadow: var(--gold-glow);
  font-weight: 700;
}

.legend {
  display: flex;
  justify-content: center;
  gap: 24px;
  border-top: 1px solid var(--border-default);
  padding-top: 18px;
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.legend-box {
  width: 14px;
  height: 14px;
  border-radius: 4px;
  display: inline-block;
}

.legend-box.unfilled {
  border: 1px solid var(--border-default);
  background: var(--panel-bg-alt);
}

.legend-box.filled {
  background: var(--gold-gradient);
  box-shadow: var(--gold-glow);
}

.legend-text {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
}

.data-row {
  min-height: 38px;
  border-radius: 16px;
  border: 1px solid var(--border-default);
  background: var(--panel-bg-alt);
  display: grid;
  grid-template-columns: 1.25fr 1fr;
  align-items: center;
  padding: 0 18px;
  text-align: left;
  font-size: 11px;
  box-shadow: var(--glow);
}

.data-row strong {
  color: var(--text-secondary);
  font-weight: 600;
}

.data-row span {
  color: var(--gold);
  font-weight: 600;
  text-align: right;
}

.dots {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin-top: 40px;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border-default);
}

.dot.active {
  background: var(--gold);
  box-shadow: var(--gold-glow);
}

@media (max-height: 760px) {
  .phone-shell {
    min-height: 100vh;
    overflow-y: auto;
  }

  .home-indicator {
    display: none;
  }
}

/* Compact Audio Player Card */
.audio-player-card {
  margin: 24px 20px 0;
  border-radius: 22px;
  border: 1px solid var(--border-default);
  background: var(--panel-bg-alt); /* Dark obsidian surface */
  padding: 20px;
  box-shadow: var(--glow);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.audio-main-row {
  display: flex;
  align-items: center;
  gap: 16px;
}

.audio-play-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gold-gradient);
  color: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--gold-glow);
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.audio-play-btn:active {
  transform: scale(0.92);
}

.audio-play-btn .play-icon {
  font-size: 16px;
  margin-left: 3px; /* visual alignment */
}

.audio-play-btn .pause-icon {
  font-size: 14px;
}

.audio-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.audio-title {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-primary);
  font-family: "DM Sans", sans-serif;
}

.audio-subtext {
  font-size: 12px;
  color: var(--text-secondary);
  font-family: "DM Sans", sans-serif;
}

/* Progress bar row */
.audio-progress-row {
  display: flex;
  align-items: center;
  gap: 12px;
}

.audio-time-current,
.audio-time-duration {
  font-size: 11px;
  color: var(--text-secondary);
  font-family: "DM Sans", sans-serif;
  min-width: 28px;
}

.audio-time-duration {
  text-align: right;
}

.audio-progress-bar {
  flex-grow: 1;
  height: 4px;
  border-radius: 99px;
  background: var(--border-default);
  outline: none;
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
}

.audio-progress-bar::-webkit-slider-runnable-track {
  height: 4px;
  border-radius: 99px;
}

.audio-progress-bar::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--gold);
  margin-top: -4px; /* Align with track */
  box-shadow: 0 0 8px rgba(201, 168, 76, 0.5);
  transition: all 0.15s ease;
}

.audio-progress-bar::-webkit-slider-thumb:active {
  transform: scale(1.3);
}

/* Playback Speed row */
.audio-speed-row {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 10px;
  border-top: 1px solid var(--border-default);
  padding-top: 14px;
  width: 100%;
}

.speed-label {
  font-size: 11px;
  color: var(--text-secondary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.speed-buttons {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  width: 100%;
}

.speed-btn {
  height: 30px;
  border-radius: 6px;
  border: 1px solid var(--border-default);
  background: var(--panel-bg);
  font-size: 12px;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
}

.speed-btn:hover {
  border-color: var(--lavender);
  color: var(--text-primary);
}

.speed-btn.active {
  border-color: var(--gold);
  background: rgba(201, 168, 76, 0.12);
  color: var(--gold);
  font-weight: 700;
  box-shadow: var(--gold-glow);
}

.audio-error-msg {
  color: #ff5555;
  font-size: 11px;
  font-weight: 500;
  margin-top: 4px;
}

/* Section Divider Banner */
.section-divider-banner {
  display: flex;
  align-items: center;
  justify-content: center;
  width: calc(100% - 40px);
  margin: 32px auto 16px;
  background: var(--gold-gradient);
  border: 1.5px solid var(--gold-dark);
  border-radius: 12px;
  padding: 12px 16px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.3);
  color: #0d0b1a; /* matches play button text color for high contrast readability */
  font-family: "Cormorant Garamond", serif;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: center;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.2);
  font-variant-numeric: lining-nums;
  font-feature-settings: "lnum" 1;
}

.section-divider-banner.collapsible {
  position: relative;
  cursor: pointer;
  user-select: none;
}

.section-divider-banner.collapsible:active {
  transform: scale(0.99);
}

.section-divider-banner .banner-indicator {
  position: absolute;
  right: 18px;
  font-size: 11px;
  color: #0d0b1a;
  opacity: 0.85;
}