:root {
  color-scheme: dark;
  --bg: #050607;
  --panel: rgba(12, 16, 18, 0.78);
  --panel-strong: rgba(17, 23, 27, 0.92);
  --line: rgba(162, 241, 255, 0.16);
  --text: #f4fbff;
  --muted: #8fa1aa;
  --cyan: #6ee7ff;
  --mint: #8effc1;
  --warn: #ffd36e;
  --danger: #ff7474;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.55);
  --glow: 0 0 34px rgba(110, 231, 255, 0.25);
}

* { box-sizing: border-box; }

html, body { min-height: 100%; }

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 72% 12%, rgba(110, 231, 255, 0.14), transparent 28rem),
    radial-gradient(circle at 24% 96%, rgba(142, 255, 193, 0.08), transparent 24rem),
    linear-gradient(145deg, #020303, #070b0d 46%, #020303);
  color: var(--text);
  overflow-x: hidden;
}

button, input { font: inherit; }
button { cursor: pointer; }

.rain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.55;
  background-image:
    linear-gradient(108deg, transparent 0 48%, rgba(174, 232, 255, 0.14) 49% 51%, transparent 52%),
    linear-gradient(108deg, transparent 0 49%, rgba(174, 232, 255, 0.08) 50% 51%, transparent 52%);
  background-size: 96px 180px, 54px 116px;
  animation: rain 1.1s linear infinite;
}

@keyframes rain {
  to { background-position: -96px 180px, -54px 116px; }
}

.app-shell {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 22px;
}

.phone {
  position: relative;
  width: min(100%, 430px);
  min-height: min(900px, calc(100vh - 44px));
  max-height: 920px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 34px;
  background: linear-gradient(170deg, rgba(9, 12, 14, 0.96), rgba(3, 5, 6, 0.98));
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

.phone::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.05), transparent 22%);
  pointer-events: none;
  z-index: 2;
}

.window-scene {
  position: absolute;
  inset: 0;
  opacity: 0.72;
  pointer-events: none;
}

.moon {
  position: absolute;
  width: 108px;
  height: 108px;
  top: 48px;
  right: 48px;
  border-radius: 50%;
  background: radial-gradient(circle at 32% 30%, #e6fbff, #84cfe0 48%, transparent 70%);
  filter: blur(0.4px);
  opacity: 0.2;
}

.pane {
  position: absolute;
  top: 28px;
  bottom: 160px;
  width: 1px;
  background: rgba(167, 234, 255, 0.08);
}

.pane-a { left: 28%; }
.pane-b { right: 26%; }

.curtain {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 22%;
  background: linear-gradient(90deg, rgba(0, 0, 0, 0.86), rgba(0, 0, 0, 0.18));
  filter: blur(1px);
}

.curtain-l { left: 0; }
.curtain-r {
  right: 0;
  transform: scaleX(-1);
}

.topbar {
  position: relative;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 24px 20px 10px;
}

.topbar h1 {
  margin: 0;
  font-size: 21px;
  font-weight: 600;
  letter-spacing: 0;
  text-align: center;
}

.eyebrow {
  margin: 0 0 6px;
  color: var(--cyan);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.quiet {
  margin: 0;
  color: var(--muted);
  font-size: 16px;
}

.screen {
  position: absolute;
  inset: 92px 0 74px;
  z-index: 3;
  overflow-y: auto;
  padding: 12px 20px 24px;
  opacity: 0;
  transform: translateY(18px);
  pointer-events: none;
  transition: opacity 220ms ease, transform 220ms ease;
  scrollbar-width: none;
}

.screen::-webkit-scrollbar { display: none; }

.screen.active {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.hero-copy {
  padding: 18px 4px 24px;
}

.hero-copy h2,
.section-head h2,
.reward h2 {
  margin: 6px 0 0;
  font-size: clamp(30px, 9vw, 48px);
  line-height: 0.96;
  font-weight: 700;
  letter-spacing: 0;
}

.section-head {
  margin: 8px 0 18px;
}

.section-head p:not(.eyebrow) {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.55;
}

.stats-strip,
.profile-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 12px;
}

.profile-grid { grid-template-columns: repeat(2, 1fr); }

.stats-strip article,
.profile-grid article,
.level-card,
.mission-card,
.boss-preview,
.activity-panel,
.leaderboard,
.exercise-card,
.input-label,
.toggle-row,
.pricing-card,
.monetization-note {
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--panel);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
  backdrop-filter: blur(18px);
}

.stats-strip article,
.profile-grid article {
  min-height: 88px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 12px;
}

.stats-strip span,
.profile-grid span {
  display: block;
  font-size: 26px;
  font-weight: 700;
}

.stats-strip p,
.profile-grid p {
  margin: 5px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.level-card,
.mission-card,
.boss-preview,
.leaderboard,
.activity-panel,
.pricing-card,
.monetization-note {
  padding: 18px;
  margin-top: 12px;
}

.row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.row p,
.row h3 {
  margin: 0;
}

.row strong,
.row span {
  color: var(--muted);
  font-size: 12px;
}

.meter {
  height: 8px;
  margin-top: 13px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
}

.meter span {
  display: block;
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--cyan), var(--mint));
  box-shadow: var(--glow);
  transition: width 260ms ease;
}

.mission-card {
  min-height: 236px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background:
    linear-gradient(145deg, rgba(12, 16, 18, 0.9), rgba(7, 11, 13, 0.76)),
    radial-gradient(circle at 90% 12%, rgba(110, 231, 255, 0.22), transparent 16rem);
}

.mission-card h3,
.boss-preview h3,
.leaderboard h3,
.pricing-card h3,
.monetization-note h3 {
  margin: 0;
  font-size: 22px;
}

.mission-card p:not(.eyebrow) {
  color: var(--muted);
  line-height: 1.5;
}

.boss-preview {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.boss-preview span {
  color: var(--warn);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.icon-btn,
.primary,
.ghost,
.segmented button,
.tabs button {
  border: 0;
  color: var(--text);
}

.icon-btn {
  width: 44px;
  height: 44px;
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.07);
  font-size: 18px;
}

.primary,
.ghost {
  min-height: 52px;
  padding: 0 20px;
  border-radius: 18px;
  font-weight: 800;
}

.primary {
  background: linear-gradient(135deg, #dffaff, #6ee7ff 54%, #8effc1);
  color: #031114;
  box-shadow: 0 14px 34px rgba(110, 231, 255, 0.2);
}

.primary:disabled {
  cursor: not-allowed;
  opacity: 0.42;
}

.ghost {
  border: 1px solid rgba(255, 116, 116, 0.25);
  background: rgba(255, 116, 116, 0.08);
  color: #ffaaaa;
}

.wide { width: 100%; }

.class-list,
.exercise-list {
  display: grid;
  gap: 12px;
}

.class-card,
.exercise-card {
  display: flex;
  align-items: center;
  gap: 14px;
  width: 100%;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(12, 16, 18, 0.78);
  color: var(--text);
  text-align: left;
  transition: border-color 180ms ease, transform 180ms ease, background 180ms ease;
}

.class-card:hover,
.class-card.selected,
.exercise-card.done {
  border-color: rgba(110, 231, 255, 0.54);
  background: rgba(18, 28, 32, 0.88);
}

.class-card:hover { transform: translateY(-1px); }

.class-icon {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border-radius: 17px;
  background: rgba(110, 231, 255, 0.1);
  color: var(--cyan);
  font-size: 23px;
}

.class-card h3,
.exercise-card h3 {
  margin: 0;
  font-size: 17px;
}

.class-card p,
.exercise-card p {
  margin: 4px 0 0;
  color: var(--muted);
  line-height: 1.4;
  font-size: 13px;
}

.segmented {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin: 12px 0 16px;
}

.segmented button {
  min-height: 44px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.07);
}

.segmented button.selected {
  background: rgba(110, 231, 255, 0.2);
  color: var(--cyan);
  box-shadow: inset 0 0 0 1px rgba(110, 231, 255, 0.36);
}

.mission-meter { margin-bottom: 16px; }

.exercise-check {
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border: 1px solid rgba(110, 231, 255, 0.32);
  border-radius: 10px;
  color: transparent;
}

.exercise-card.done .exercise-check {
  background: var(--cyan);
  color: #031114;
}

.reward-orb {
  width: 156px;
  height: 156px;
  display: grid;
  place-items: center;
  margin: 48px auto 28px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(110, 231, 255, 0.28), rgba(110, 231, 255, 0.06) 58%, transparent 72%);
  color: var(--cyan);
  font-size: 42px;
  font-weight: 800;
  text-shadow: var(--glow);
}

#reward {
  text-align: center;
}

#reward h2 {
  margin: 0;
  font-size: 34px;
}

#reward p:not(.eyebrow) {
  color: var(--muted);
}

.leaderboard ol {
  list-style: none;
  padding: 0;
  margin: 18px 0 0;
  display: grid;
  gap: 10px;
}

.leaderboard li {
  display: grid;
  grid-template-columns: 34px 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 12px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.05);
}

.leaderboard .me {
  outline: 1px solid rgba(110, 231, 255, 0.38);
}

.pricing-card {
  overflow: hidden;
}

.pricing-card strong {
  color: var(--text);
  font-size: 15px;
}

.plus-plan {
  background:
    radial-gradient(circle at 88% 0%, rgba(142, 255, 193, 0.16), transparent 16rem),
    linear-gradient(145deg, rgba(13, 23, 25, 0.92), rgba(7, 10, 12, 0.8));
  border-color: rgba(142, 255, 193, 0.28);
}

.free-plan {
  background: rgba(12, 16, 18, 0.62);
}

.perk-list {
  display: grid;
  gap: 10px;
  padding: 0;
  margin: 16px 0;
  list-style: none;
}

.perk-list li {
  position: relative;
  padding-left: 24px;
  color: var(--muted);
  line-height: 1.35;
}

.perk-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: var(--glow);
}

.monetization-note p:not(.eyebrow) {
  color: var(--muted);
  line-height: 1.55;
}

.input-label {
  display: grid;
  gap: 10px;
  padding: 16px;
  color: var(--muted);
}

input[type="text"],
input:not([type]) {
  width: 100%;
  border: 0;
  border-radius: 14px;
  padding: 13px 14px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
  outline: none;
}

.toggle-row {
  min-height: 58px;
  margin: 12px 0;
  padding: 0 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.fineprint {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.55;
}

.tabs {
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 14px;
  z-index: 4;
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
  padding: 7px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 22px;
  background: rgba(5, 7, 8, 0.84);
  backdrop-filter: blur(20px);
}

.tabs button {
  min-height: 42px;
  border-radius: 16px;
  background: transparent;
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.tabs button.active {
  background: rgba(110, 231, 255, 0.14);
  color: var(--cyan);
}

body.reduce-motion *,
body.reduce-motion .rain {
  animation: none !important;
  transition: none !important;
}

@media (min-width: 880px) {
  .app-shell {
    padding: 36px;
  }

  .phone {
    width: min(94vw, 1060px);
    min-height: min(760px, calc(100vh - 72px));
    border-radius: 38px;
  }

  .screen {
    inset: 96px 0 82px;
    padding: 18px 34px 34px;
  }

  #home.active {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    align-content: start;
    gap: 18px;
  }

  .hero-copy,
  .level-card,
  .stats-strip {
    grid-column: 1;
  }

  .mission-card,
  .boss-preview {
    grid-column: 2;
  }

  .mission-card {
    min-height: 330px;
    margin-top: 0;
  }

  .hero-copy h2,
  .section-head h2 {
    font-size: 62px;
  }

  .class-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .exercise-list,
  .profile-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  #monetization.active {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    align-content: start;
    gap: 18px;
  }

  #monetization .section-head,
  #monetization .monetization-note {
    grid-column: 1 / -1;
  }

  .activity-panel {
    max-width: 560px;
  }
}

@media (max-width: 380px) {
  .app-shell { padding: 0; }
  .phone {
    min-height: 100vh;
    border: 0;
    border-radius: 0;
  }
  .topbar { padding-inline: 14px; }
  .screen { padding-inline: 14px; }
  .stats-strip { gap: 7px; }
  .tabs { left: 10px; right: 10px; }
}