:root {
  color-scheme: dark;
  --ink: #e6f4f2;
  --muted: #92a4a6;
  --dim: #607376;
  --bg: #061c1f;
  --bg2: #020b0d;
  --panel: rgba(12, 35, 39, 0.9);
  --panel2: rgba(17, 46, 51, 0.95);
  --line: rgba(111, 240, 233, 0.2);
  --cyan: #73f0e8;
  --teal: #38c7c1;
  --deep-teal: #177785;
  --coral: #fb6e65;
  --green: #6bcc94;
  --yellow: #f5b84f;
  --shadow: rgba(0, 0, 0, 0.42);
  --radius: 24px;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  background:
    radial-gradient(circle at 80% 8%, rgba(56, 199, 193, 0.22), transparent 34rem),
    radial-gradient(circle at 8% 16%, rgba(115, 240, 232, 0.07), transparent 22rem),
    radial-gradient(circle at 0% 92%, rgba(251, 110, 101, 0.08), transparent 26rem),
    linear-gradient(145deg, var(--bg), var(--bg2));
  color: var(--ink);
}

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

.app-shell {
  width: min(100%, 940px);
  margin: 0 auto;
  min-height: 100dvh;
  padding: max(18px, env(safe-area-inset-top)) 18px calc(108px + env(safe-area-inset-bottom));
  position: relative;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: var(--ink);
  text-decoration: none;
}

.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 13px;
  color: var(--cyan);
  background:
    radial-gradient(circle at 35% 25%, rgba(115, 240, 232, 0.22), transparent 38%),
    linear-gradient(145deg, rgba(13, 57, 64, 0.98), rgba(2, 20, 23, 0.98));
  border: 1px solid var(--line);
  box-shadow: 0 14px 38px rgba(56, 199, 193, 0.13);
  font-size: 28px;
}

.brand-title {
  display: block;
  font-weight: 850;
  letter-spacing: -0.03em;
  font-size: 19px;
}

.brand-subtitle,
.signal {
  display: block;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(115, 240, 232, 0.72);
}

.soft-link {
  color: var(--muted);
  text-decoration: none;
  font-weight: 750;
}

.soft-link:hover {
  color: var(--cyan);
}

.screen {
  display: grid;
  gap: 22px;
}

.hero,
.card,
.tool-card,
.ad-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 28px 70px var(--shadow);
}

.hero {
  padding: clamp(26px, 6vw, 64px);
  min-height: min(740px, calc(100dvh - 170px));
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 30px;
  position: relative;
  overflow: hidden;
}

.hero::before,
.card::before,
.ad-card::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(115, 240, 232, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(115, 240, 232, 0.025) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.42), transparent 72%);
}

.hero.compact {
  min-height: auto;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  font-size: clamp(44px, 10vw, 86px);
  font-weight: 800;
  line-height: 0.98;
  letter-spacing: -0.04em;
  text-wrap: balance;
}

h2 {
  font-size: clamp(28px, 7vw, 56px);
  line-height: 1.02;
  letter-spacing: -0.04em;
  text-wrap: balance;
}

h3 {
  font-size: 22px;
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.lede {
  color: var(--muted);
  font-size: clamp(18px, 4vw, 24px);
  line-height: 1.35;
  max-width: 650px;
}

.hero > *,
.card > *,
.ad-card > * {
  position: relative;
}

.face-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 10px;
  padding: 14px;
  border-radius: 24px;
  background: rgba(7, 28, 32, 0.68);
  border: 1px solid var(--line);
}

.face-button {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--muted);
  border-radius: 18px;
  padding: 14px 6px 12px;
  cursor: pointer;
  transition:
    transform 160ms ease,
    background 160ms ease,
    color 160ms ease;
}

.face-button:hover,
.face-button:focus-visible {
  outline: none;
  transform: translateY(-2px);
  background: rgba(115, 240, 232, 0.1);
  color: var(--ink);
}

.emoji {
  display: block;
  font-size: clamp(34px, 9vw, 58px);
  line-height: 1;
  margin-bottom: 10px;
}

.label {
  display: block;
  font-weight: 800;
  font-size: clamp(12px, 3vw, 16px);
}

.button-row,
.stack {
  display: grid;
  gap: 13px;
}

.button-row {
  grid-template-columns: 1fr 1fr;
}

.primary,
.secondary,
.text-button {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  text-decoration: none;
  border: 0;
  cursor: pointer;
  font: inherit;
  font-weight: 850;
  border-radius: 18px;
  padding: 17px 20px;
}

.primary {
  color: white;
  background: linear-gradient(135deg, rgba(56, 199, 193, 0.98), rgba(23, 119, 133, 0.98));
  border: 1px solid rgba(115, 240, 232, 0.35);
  box-shadow: 0 16px 34px rgba(56, 199, 193, 0.18);
}

.secondary {
  color: var(--ink);
  background: rgba(230, 244, 242, 0.08);
  border: 1px solid rgba(230, 244, 242, 0.12);
}

.text-button {
  color: var(--muted);
  background: transparent;
}

.primary:hover,
.secondary:hover,
.text-button:hover {
  filter: brightness(1.08);
}

.card {
  padding: 22px;
}

.tool-list {
  display: grid;
  gap: 13px;
}

.tool-card {
  width: 100%;
  appearance: none;
  text-align: left;
  color: var(--ink);
  padding: 18px;
  display: grid;
  grid-template-columns: 42px 1fr 20px;
  gap: 16px;
  align-items: center;
  cursor: pointer;
}

.tool-card:hover,
.tool-card:focus-visible {
  outline: none;
  background: var(--panel2);
  border-color: rgba(115, 240, 232, 0.42);
}

.tool-icon {
  font-size: 29px;
}

.tool-detail {
  margin-top: 5px;
  color: var(--muted);
  line-height: 1.35;
}

.chev {
  color: var(--cyan);
  font-size: 28px;
}

.support {
  color: var(--ink);
  text-decoration-color: rgba(115, 240, 232, 0.55);
  text-underline-offset: 4px;
}

.fine-print {
  color: var(--dim);
  font-size: 13px;
  line-height: 1.4;
}

.ad-card {
  position: relative;
  display: grid;
  grid-template-columns: 1fr minmax(190px, 260px);
  gap: 18px;
  align-items: center;
  padding: 22px;
  background:
    linear-gradient(135deg, rgba(115, 240, 232, 0.09), rgba(251, 110, 101, 0.05)),
    rgba(15, 38, 43, 0.95);
}

.ad-card h2 {
  font-size: clamp(25px, 4vw, 36px);
  margin: 7px 0 8px;
}

.ad-card p {
  color: var(--muted);
  line-height: 1.4;
}

.big-ad-card {
  grid-template-columns: minmax(0, 0.72fr) minmax(360px, 1.28fr);
  gap: clamp(20px, 4vw, 36px);
  padding: clamp(22px, 4vw, 34px);
}

.big-ad-card h2 {
  font-size: clamp(32px, 5vw, 54px);
}

.big-ad-card .video-ad-slot {
  min-height: 320px;
}

.ad-kicker {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.ad-placeholder {
  min-height: 170px;
  border-radius: 18px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.02)),
    repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.05), rgba(255, 255, 255, 0.05) 8px, transparent 8px, transparent 18px);
  border: 1px dashed rgba(230, 244, 242, 0.28);
  display: grid;
  place-items: center;
  color: var(--muted);
  text-align: center;
}

.interstitial {
  min-height: min(780px, calc(100dvh - 170px));
}

.interstitial-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.82fr) minmax(340px, 1.18fr);
  gap: clamp(18px, 4vw, 34px);
  align-items: center;
}

.interstitial-copy {
  display: grid;
  gap: 16px;
}

.video-ad-slot {
  width: 100%;
  aspect-ratio: 16 / 9;
  min-height: 280px;
  border-radius: 26px;
  overflow: hidden;
  border: 1px solid rgba(115, 240, 232, 0.24);
  background:
    radial-gradient(circle at 50% 35%, rgba(115, 240, 232, 0.14), transparent 38%),
    linear-gradient(135deg, rgba(255, 255, 255, 0.07), rgba(255, 255, 255, 0.018)),
    repeating-linear-gradient(45deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.045) 9px, transparent 9px, transparent 21px);
  display: grid;
  place-items: center;
  color: var(--muted);
  text-align: center;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.03), 0 30px 70px rgba(0, 0, 0, 0.35);
}

.video-ad-slot strong {
  display: block;
  font-size: clamp(34px, 7vw, 76px);
  letter-spacing: -0.07em;
  color: var(--ink);
}

.video-ad-slot span {
  display: block;
  margin-top: 7px;
}

.interstitial-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-top: 6px;
}

.ad-placeholder span,
.ad-placeholder small {
  display: block;
}

.ad-placeholder span {
  font-size: 26px;
  font-weight: 900;
  color: var(--ink);
}

.ad-sticky {
  position: fixed;
  left: 50%;
  bottom: max(14px, env(safe-area-inset-bottom));
  transform: translateX(-50%);
  width: min(calc(100% - 28px), 740px);
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(9, 29, 33, 0.96);
  border: 1px solid rgba(115, 240, 232, 0.2);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.42);
  border-radius: 18px;
  padding: 12px 14px;
  z-index: 20;
  backdrop-filter: blur(16px);
}

.ad-copy {
  color: var(--muted);
  font-size: 13px;
  flex: 1;
}

.ad-close {
  border: 0;
  background: rgba(230, 244, 242, 0.1);
  color: var(--ink);
  width: 30px;
  height: 30px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 20px;
  line-height: 1;
}

.timer {
  font-size: clamp(66px, 20vw, 124px);
  font-weight: 900;
  line-height: 1;
  letter-spacing: -0.07em;
}

.breath-orb {
  width: 150px;
  height: 150px;
  margin: 8px auto;
  border-radius: 50%;
  background: rgba(56, 199, 193, 0.17);
  border: 1px solid rgba(115, 240, 232, 0.66);
  box-shadow: 0 0 48px rgba(56, 199, 193, 0.2);
  display: grid;
  place-items: center;
  transition: transform 4000ms ease-in-out;
}

.breath-orb.expand {
  transform: scale(1.55);
}

.center {
  text-align: center;
  align-items: center;
}

.hidden {
  display: none !important;
}

@media (max-width: 680px) {
  .app-shell {
    padding-left: 14px;
    padding-right: 14px;
  }

  .topbar {
    margin-bottom: 14px;
  }

  .hero {
    border-radius: 24px;
    padding: 24px 16px;
  }

  h1 {
    letter-spacing: -0.03em;
    line-height: 1;
  }

  .face-grid {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    padding: 8px;
    gap: 2px;
  }

  .face-button {
    padding: 11px 2px;
  }

  .button-row,
  .ad-card,
  .interstitial-grid,
  .interstitial-actions {
    grid-template-columns: 1fr;
  }

  .big-ad-card {
    padding: 18px;
  }

  .interstitial {
    min-height: auto;
  }

  .video-ad-slot {
    aspect-ratio: 4 / 5;
    min-height: 310px;
    border-radius: 22px;
  }

  .ad-placeholder {
    min-height: 120px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    scroll-behavior: auto !important;
    transition-duration: 0.001ms !important;
  }
}