/* ==========================================================================
   Alco Nut — landing page
   Design tokens mirror the iOS app: BAC level gradient, theme accents, glass.
   ========================================================================== */

:root {
  /* Brand */
  --acorn: #e8893a;
  --acorn-deep: #8b4a1f;
  --app-blue: #0a84ff;

  /* BAC level palette (same scale as the app ring) */
  --bac-sober: #34c759;
  --bac-minimal: #63e6be;
  --bac-buzzed: #ffd60a;
  --bac-impaired: #ff9f0a;
  --bac-intoxicated: #ff453a;
  --bac-dangerous: #bf5af2;
  --bac-gradient: linear-gradient(90deg, var(--bac-sober), var(--bac-minimal) 18%, var(--bac-buzzed) 40%, var(--bac-impaired) 58%, var(--bac-intoxicated) 78%, var(--bac-dangerous));

  /* Theme accent (switchable, like the app's themes) */
  --accent: #3b82ff;
  --accent-2: #7c5cff;
  --accent-3: #ff8a3d;

  /* Dark night theme (default) */
  --bg: #07060f;
  --bg-2: #0e0c1d;
  --surface: rgba(255, 255, 255, 0.055);
  --surface-strong: rgba(255, 255, 255, 0.09);
  --surface-solid: #15132a;
  --border: rgba(255, 255, 255, 0.1);
  --border-strong: rgba(255, 255, 255, 0.18);
  --text: #f5f4ff;
  --text-2: #b9b6d6;
  --text-3: #8b88aa;
  --shadow: 0 20px 60px -20px rgba(0, 0, 0, 0.7);
  --glow-strength: 0.55;
  --device-frame: #1c1b27;

  --radius-s: 12px;
  --radius-m: 20px;
  --radius-l: 30px;
  --radius-xl: 44px;

  --font: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-display: ui-rounded, "SF Pro Rounded", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --container: 1200px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);

  color-scheme: dark;
}

:root[data-mode="light"] {
  --bg: #f6f5fb;
  --bg-2: #ecebf6;
  --surface: rgba(255, 255, 255, 0.72);
  --surface-strong: rgba(255, 255, 255, 0.9);
  --surface-solid: #ffffff;
  --border: rgba(20, 16, 60, 0.08);
  --border-strong: rgba(20, 16, 60, 0.16);
  --text: #14122b;
  --text-2: #4c4a6b;
  --text-3: #74729a;
  --shadow: 0 24px 60px -28px rgba(30, 20, 90, 0.35);
  --glow-strength: 0.32;
  --device-frame: #d9d8e6;
  color-scheme: light;
}

/* Theme accents — names match the app */
:root[data-theme="classic"] { --accent: #3b82ff; --accent-2: #7c5cff; --accent-3: #ff8a3d; }
:root[data-theme="midnight"] { --accent: #a5b4fc; --accent-2: #8b5cf6; --accent-3: #c084fc; }
:root[data-theme="ocean"] { --accent: #14b8a6; --accent-2: #38bdf8; --accent-3: #fb7185; }
:root[data-theme="ember"] { --accent: #f97316; --accent-2: #ef4444; --accent-3: #fbbf24; }
:root[data-theme="forest"] { --accent: #22c55e; --accent-2: #0ea5a4; --accent-3: #eab308; }
:root[data-theme="rose"] { --accent: #e11d74; --accent-2: #a855f7; --accent-3: #fb923c; }

/* ---------- Base ---------- */

*,
*::before,
*::after { box-sizing: border-box; }

html {
  overflow-x: clip;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.4s var(--ease), color 0.4s var(--ease);
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
button, input, select, textarea { font: inherit; color: inherit; }

::selection { background: color-mix(in srgb, var(--accent) 40%, transparent); }

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
  border-radius: 8px;
}

.skip-link {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 100;
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--surface-solid);
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
}
.skip-link:focus { top: 16px; }

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

.container {
  width: min(var(--container), calc(100% - 40px));
  margin-inline: auto;
}

/* ---------- Aurora background ---------- */

.aurora {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
  background:
    radial-gradient(1200px 700px at 50% -10%, color-mix(in srgb, var(--accent) 22%, transparent), transparent 70%),
    linear-gradient(180deg, var(--bg), var(--bg-2));
}

.aurora span {
  position: absolute;
  width: 60vmax;
  height: 60vmax;
  border-radius: 50%;
  filter: blur(90px);
  opacity: var(--glow-strength);
  mix-blend-mode: screen;
  animation: drift 26s ease-in-out infinite alternate;
}
:root[data-mode="light"] .aurora span { mix-blend-mode: multiply; }

.aurora span:nth-child(1) { background: var(--accent); top: -25vmax; left: -15vmax; }
.aurora span:nth-child(2) { background: var(--accent-2); top: 10vmax; right: -25vmax; animation-duration: 32s; animation-delay: -6s; }
.aurora span:nth-child(3) { background: var(--accent-3); bottom: -35vmax; left: 20vmax; animation-duration: 38s; animation-delay: -12s; opacity: calc(var(--glow-strength) * 0.6); }

.grain {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

@keyframes drift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to { transform: translate3d(8vmax, 6vmax, 0) scale(1.15); }
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  padding: 14px 0;
  transition: padding 0.3s var(--ease);
}

.nav {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 10px 12px 10px 16px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--bg) 55%, transparent);
  border: 1px solid var(--border);
  backdrop-filter: saturate(160%) blur(18px);
  -webkit-backdrop-filter: saturate(160%) blur(18px);
  box-shadow: 0 10px 40px -20px rgba(0, 0, 0, 0.5);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  flex-shrink: 0;
}
.brand img { width: 36px; height: 36px; border-radius: 10px; box-shadow: 0 6px 16px -6px rgba(10, 132, 255, 0.7); }

.nav-links {
  display: flex;
  gap: 4px;
  margin: 0 auto;
  padding: 0;
  list-style: none;
}
.nav-links a {
  display: block;
  padding: 8px 14px;
  border-radius: 999px;
  color: var(--text-2);
  text-decoration: none;
  font-size: 0.93rem;
  font-weight: 500;
  transition: color 0.2s, background 0.2s;
}
.nav-links a:hover, .nav-links a[aria-current="true"] { color: var(--text); background: var(--surface-strong); }

.nav-actions { display: flex; align-items: center; gap: 8px; margin-left: auto; }

.icon-button {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface);
  cursor: pointer;
  transition: transform 0.2s var(--ease), background 0.2s;
}
.icon-button:hover { background: var(--surface-strong); transform: translateY(-1px); }
.icon-button svg { width: 20px; height: 20px; }

.menu-toggle { display: none; }

/* ---------- Buttons ---------- */

.btn {
  --btn-bg: var(--surface-strong);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 24px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--btn-bg);
  font-weight: 650;
  text-decoration: none;
  cursor: pointer;
  white-space: nowrap;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0) scale(0.98); }

.btn-primary {
  color: #fff;
  border-color: transparent;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 14px 34px -12px color-mix(in srgb, var(--accent) 70%, transparent), inset 0 1px 0 rgba(255, 255, 255, 0.3);
}
.btn-primary:hover { box-shadow: 0 20px 44px -12px color-mix(in srgb, var(--accent) 85%, transparent), inset 0 1px 0 rgba(255, 255, 255, 0.3); }

.btn-small { padding: 9px 16px; font-size: 0.9rem; }

.btn-appstore {
  gap: 12px;
  padding: 11px 22px 11px 18px;
  color: #fff;
  background: #000;
  border-color: rgba(255, 255, 255, 0.22);
  box-shadow: 0 14px 34px -14px rgba(0, 0, 0, 0.8);
}
:root[data-mode="light"] .btn-appstore { border-color: transparent; }
.btn-appstore svg { width: 26px; height: 26px; flex-shrink: 0; }
.btn-appstore span { display: grid; line-height: 1.1; text-align: left; }
.btn-appstore small { font-size: 0.7rem; font-weight: 500; opacity: 0.85; }
.btn-appstore strong { font-size: 1.2rem; font-weight: 650; letter-spacing: -0.01em; }

/* ---------- Typography helpers ---------- */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px 6px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-2);
  font-size: 0.85rem;
  font-weight: 600;
}
.eyebrow .dot {
  padding: 2px 8px;
  border-radius: 999px;
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: linear-gradient(135deg, var(--accent-3), var(--accent));
}

h1, h2, h3 {
  font-family: var(--font-display);
  line-height: 1.08;
  letter-spacing: -0.025em;
  margin: 0;
}

h1 { font-size: clamp(2.6rem, 6.4vw, 5rem); font-weight: 850; }
h2 { font-size: clamp(2rem, 4.4vw, 3.3rem); font-weight: 800; }
h3 { font-size: 1.3rem; font-weight: 750; letter-spacing: -0.01em; }

.gradient-text {
  background: linear-gradient(100deg, var(--accent) 0%, var(--accent-2) 45%, var(--accent-3) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.bac-text {
  background: var(--bac-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead { font-size: clamp(1.08rem, 1.6vw, 1.3rem); color: var(--text-2); max-width: 60ch; }

.section { padding: clamp(80px, 11vw, 150px) 0; position: relative; }
.section-head { max-width: 760px; margin: 0 auto clamp(40px, 6vw, 70px); text-align: center; }
.section-head .lead { margin: 18px auto 0; }
.section-kicker {
  display: inline-block;
  margin-bottom: 14px;
  color: var(--accent);
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* ---------- Hero ---------- */

.hero { padding: clamp(30px, 6vw, 70px) 0 clamp(60px, 9vw, 120px); overflow-x: clip; }

.hero-grid {
  display: grid;
  grid-template-columns: 1.02fr 1fr;
  align-items: center;
  gap: clamp(30px, 5vw, 70px);
}

.hero-copy h1 { margin: 22px 0 22px; }
.hero-copy .lead { margin: 0 0 32px; }

.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; }

.trust-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 22px;
  margin: 34px 0 0;
  padding: 0;
  list-style: none;
  color: var(--text-2);
  font-size: 0.93rem;
}
.trust-row li { display: flex; align-items: center; gap: 8px; }
.trust-row svg { width: 18px; height: 18px; color: var(--bac-sober); }

.hero-visual {
  position: relative;
  min-height: 640px;
  max-width: 620px;
  width: 100%;
  justify-self: center;
  perspective: 1400px;
}

.hero-stage {
  position: relative;
  height: 100%;
  min-height: 640px;
  transform-style: preserve-3d;
  transition: transform 0.6s var(--ease);
}

.hero-ring {
  position: absolute;
  inset: 50% auto auto 50%;
  width: 560px;
  height: 560px;
  translate: -50% -50%;
  border-radius: 50%;
  background: conic-gradient(from 225deg, var(--bac-sober), var(--bac-buzzed), var(--bac-impaired), var(--bac-intoxicated), var(--bac-dangerous), transparent 75%);
  mask: radial-gradient(circle, transparent 62%, #000 63%, #000 70%, transparent 71%);
  -webkit-mask: radial-gradient(circle, transparent 62%, #000 63%, #000 70%, transparent 71%);
  opacity: 0.55;
  filter: blur(1px) drop-shadow(0 0 30px rgba(255, 159, 10, 0.4));
  animation: spin 40s linear infinite;
}

@keyframes spin { to { rotate: 360deg; } }

.device {
  position: absolute;
  width: 290px;
  aspect-ratio: 780 / 1696;
  padding: 10px;
  border-radius: 52px;
  background: linear-gradient(145deg, color-mix(in srgb, var(--device-frame) 80%, #fff 20%), var(--device-frame));
  box-shadow: var(--shadow), 0 0 0 1px var(--border-strong), inset 0 0 0 2px rgba(255, 255, 255, 0.06);
}
.device img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 43px;
}

.hero-stage .device-main {
  left: 50%;
  top: 50%;
  z-index: 3;
  translate: -50% -50%;
  width: 300px;
}
.hero-stage .device-left {
  left: 6%;
  top: 54%;
  z-index: 2;
  translate: 0 -50%;
  width: 250px;
  rotate: -9deg;
  filter: saturate(0.9) brightness(0.82);
}
.hero-stage .device-right {
  right: 6%;
  top: 46%;
  z-index: 2;
  translate: 0 -50%;
  width: 250px;
  rotate: 9deg;
  filter: saturate(0.9) brightness(0.82);
}

.float-chip {
  position: absolute;
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px 10px 10px;
  border-radius: 18px;
  border: 1px solid var(--border-strong);
  background: color-mix(in srgb, var(--surface-solid) 78%, transparent);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--shadow);
  font-size: 0.86rem;
  line-height: 1.25;
  animation: bob 6s ease-in-out infinite;
}
.float-chip b { display: block; font-size: 0.98rem; }
.float-chip small { color: var(--text-3); }
.float-chip .chip-icon svg { color: #fff; }
.float-chip .chip-icon {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  color: #fff;
  font-size: 1.1rem;
}
.chip-1 { top: 9%; left: -2%; }
.chip-2 { bottom: 14%; right: -3%; animation-delay: -2s; }
.chip-3 { bottom: 2%; left: 8%; animation-delay: -4s; }

@keyframes bob {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.hero-mascot {
  position: absolute;
  z-index: 6;
  width: 128px;
  right: 10%;
  top: -2%;
  filter: drop-shadow(0 18px 24px rgba(0, 0, 0, 0.45));
  animation: bob 5s ease-in-out infinite;
  animation-delay: -1s;
}

/* ---------- Marquee ---------- */

.marquee {
  position: relative;
  overflow: hidden;
  padding: 18px 0;
  border-block: 1px solid var(--border);
  background: var(--surface);
  mask: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
  -webkit-mask: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}
.marquee-track {
  display: flex;
  width: max-content;
  gap: 42px;
  animation: marquee 38s linear infinite;
}
.marquee-track span {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-2);
  font-weight: 600;
  white-space: nowrap;
}
.marquee-track span::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--bac-gradient);
}

@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- Cards ---------- */

.card {
  position: relative;
  padding: 30px;
  border-radius: var(--radius-l);
  border: 1px solid var(--border);
  background: var(--surface);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  box-shadow: var(--shadow);
  overflow: hidden;
  isolation: isolate;
  transition: transform 0.4s var(--ease), border-color 0.4s;
}
.card::before {
  /* Pointer-following spotlight */
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: 0;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%), color-mix(in srgb, var(--accent) 22%, transparent), transparent 60%);
  transition: opacity 0.4s;
}
.card:hover { transform: translateY(-4px); border-color: var(--border-strong); }
.card:hover::before { opacity: 1; }

.card-icon {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  margin-bottom: 22px;
  border-radius: 16px;
  color: #fff;
  box-shadow: 0 12px 26px -12px currentColor;
}
.card-icon svg { width: 26px; height: 26px; color: #fff; }
.card h3 { margin-bottom: 10px; }
.card p { margin: 0; color: var(--text-2); }

.benefit-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.icon-green { background: linear-gradient(135deg, #34c759, #0ea5a4); color: #34c759; }
.icon-blue { background: linear-gradient(135deg, #0a84ff, #5e5ce6); color: #0a84ff; }
.icon-orange { background: linear-gradient(135deg, #ff9f0a, #ff453a); color: #ff9f0a; }
.icon-purple { background: linear-gradient(135deg, #bf5af2, #5e5ce6); color: #bf5af2; }
.icon-acorn { background: linear-gradient(135deg, var(--acorn), var(--acorn-deep)); color: var(--acorn); }
.icon-pink { background: linear-gradient(135deg, #ff375f, #bf5af2); color: #ff375f; }

/* ---------- Steps ---------- */

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  counter-reset: step;
  padding: 0;
  margin: 0;
  list-style: none;
}
.steps li { counter-increment: step; }
.steps .card { height: 100%; }
.steps .card::after {
  content: counter(step, decimal-leading-zero);
  position: absolute;
  right: 24px;
  top: 18px;
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 900;
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1.5px var(--border-strong);
}

/* ---------- Feature rows ---------- */

.feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: clamp(30px, 7vw, 110px);
  margin-bottom: clamp(70px, 11vw, 150px);
}
.feature-row:last-child { margin-bottom: 0; }
.feature-row.reverse .feature-media { order: -1; }

.feature-copy h2 { font-size: clamp(1.9rem, 3.6vw, 2.8rem); margin-bottom: 18px; }
.feature-copy .lead { margin-bottom: 26px; }

.check-list { display: grid; gap: 14px; margin: 0; padding: 0; list-style: none; }
.check-list li { display: grid; grid-template-columns: 28px 1fr; gap: 12px; color: var(--text-2); }
.check-list li strong { color: var(--text); font-weight: 650; }
.check-list svg {
  width: 28px;
  height: 28px;
  padding: 6px;
  border-radius: 9px;
  color: #fff;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}

.feature-media {
  position: relative;
  display: flex;
  justify-content: center;
  gap: 22px;
  min-height: 560px;
  align-items: center;
}
.feature-media::before {
  content: "";
  position: absolute;
  inset: 12% 8%;
  z-index: -1;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--accent) 38%, transparent), transparent 68%);
  filter: blur(40px);
}
.feature-media .device { position: relative; width: 260px; }
.feature-media .device + .device { margin-top: 90px; }

/* ---------- Beyond the app ---------- */

.beyond-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 20px;
}
.beyond-grid .card-wide { grid-row: span 2; display: flex; flex-direction: column; gap: 22px; }
.lock-screen {
  position: relative;
  flex: 1;
  display: grid;
  gap: 26px;
  align-content: center;
  padding: 34px;
  min-height: 360px;
  border-radius: var(--radius-m);
  background:
    radial-gradient(500px 300px at 20% 20%, rgba(94, 92, 230, 0.55), transparent 70%),
    radial-gradient(500px 300px at 90% 90%, rgba(20, 184, 166, 0.45), transparent 70%),
    linear-gradient(160deg, #1d2b6b, #0b1330);
  overflow: hidden;
}
.lock-time {
  text-align: center;
  color: rgba(255, 255, 255, 0.92);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(3.5rem, 7vw, 5.5rem);
  line-height: 1;
  text-shadow: 0 6px 30px rgba(0, 0, 0, 0.35);
}
.lock-time small { display: block; font-size: 1rem; font-weight: 600; opacity: 0.8; margin-bottom: 6px; }
.lock-screen img { border-radius: 26px; box-shadow: 0 24px 50px -20px rgba(0, 0, 0, 0.8); width: 100%; }

.siri-bubbles { display: grid; gap: 10px; margin-top: 18px; }
.siri-bubble {
  justify-self: start;
  padding: 10px 16px;
  border-radius: 20px 20px 20px 6px;
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 85%, #000 0%), var(--accent-2));
  color: #fff;
  font-weight: 600;
  font-size: 0.95rem;
}
.siri-bubble.reply {
  justify-self: end;
  border-radius: 20px 20px 6px 20px;
  background: var(--surface-strong);
  color: var(--text);
  font-weight: 500;
}

.island-demo { margin-top: 20px; border-radius: 40px; box-shadow: 0 18px 40px -20px rgba(0, 0, 0, 0.9); }

/* ---------- Gallery ---------- */

.gallery {
  display: flex;
  gap: 26px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding: 20px max(20px, calc((100vw - var(--container)) / 2)) 40px;
  scrollbar-width: none;
}
.gallery::-webkit-scrollbar { display: none; }
.gallery figure {
  flex: 0 0 auto;
  margin: 0;
  scroll-snap-align: center;
  text-align: center;
}
.gallery .device { position: relative; width: 240px; transition: transform 0.5s var(--ease); }
.gallery figure:hover .device { transform: translateY(-10px) rotate(-1.5deg); }
.gallery figcaption { margin-top: 18px; color: var(--text-2); font-weight: 600; font-size: 0.95rem; }

.gallery-controls { display: flex; justify-content: center; gap: 12px; margin-top: 8px; }

/* ---------- BAC estimator ---------- */

.estimator {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 0;
  padding: 0;
  border-radius: var(--radius-xl);
}
.estimator:hover { transform: none; }

.estimator-form { padding: clamp(26px, 4vw, 46px); display: grid; gap: 26px; }
.estimator-result {
  position: relative;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 18px;
  padding: clamp(26px, 4vw, 46px);
  border-left: 1px solid var(--border);
  background: linear-gradient(180deg, color-mix(in srgb, var(--surface-strong) 60%, transparent), transparent);
  text-align: center;
}

fieldset { margin: 0; padding: 0; border: 0; min-width: 0; }
legend, .field-label {
  display: block;
  margin-bottom: 10px;
  color: var(--text-2);
  font-size: 0.88rem;
  font-weight: 650;
  letter-spacing: 0.02em;
}
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }

.segmented {
  position: relative;
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  padding: 4px;
  border-radius: 14px;
  background: var(--surface-strong);
  border: 1px solid var(--border);
}
.segmented input { position: absolute; opacity: 0; pointer-events: none; }
.segmented label {
  position: relative;
  z-index: 1;
  padding: 9px 12px;
  border-radius: 10px;
  text-align: center;
  font-weight: 600;
  font-size: 0.93rem;
  color: var(--text-2);
  cursor: pointer;
  transition: color 0.2s, background 0.25s var(--ease), box-shadow 0.25s;
}
.segmented input:checked + label {
  color: var(--text);
  background: var(--surface-solid);
  box-shadow: 0 6px 16px -8px rgba(0, 0, 0, 0.5);
}
.segmented input:focus-visible + label { outline: 3px solid var(--accent); outline-offset: 1px; }

.input-group {
  display: flex;
  align-items: center;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--surface-strong);
  transition: border-color 0.2s, box-shadow 0.2s;
}
.input-group:focus-within { border-color: var(--accent); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 22%, transparent); }
.input-group input, .input-group select {
  flex: 1;
  width: 100%;
  min-width: 0;
  padding: 12px 14px;
  border: 0;
  outline: 0;
  background: transparent;
  font-size: 1.05rem;
  font-weight: 600;
}
.input-group select { appearance: none; -webkit-appearance: none; cursor: pointer; }
.input-group option { color: #111; }
.input-group .suffix { padding-right: 14px; color: var(--text-3); font-weight: 600; font-size: 0.9rem; }
.input-group button.suffix { border: 0; background: none; cursor: pointer; color: var(--accent); }

.drink-picker { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
.drink-pill .meta small { white-space: nowrap; }
.drink-pill {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 10px 10px 12px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--surface-strong);
  transition: border-color 0.2s, transform 0.2s var(--ease);
}
.drink-pill.has-value { border-color: color-mix(in srgb, var(--accent) 60%, transparent); }
.drink-pill .emoji { font-size: 1.5rem; line-height: 1; }
.drink-pill .meta { flex: 1; line-height: 1.2; min-width: 0; }
.drink-pill .meta b { display: block; font-size: 0.92rem; }
.drink-pill .meta small { color: var(--text-3); font-size: 0.74rem; }
.stepper { display: flex; align-items: center; gap: 6px; }
.stepper button {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 0;
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  color: var(--accent);
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.15s, background 0.2s;
}
.stepper button:hover { background: color-mix(in srgb, var(--accent) 30%, transparent); }
.stepper button:active { transform: scale(0.9); }
.stepper output { min-width: 16px; text-align: center; font-weight: 700; font-variant-numeric: tabular-nums; }

.range-wrap { display: grid; gap: 8px; }
.range-head { display: flex; justify-content: space-between; align-items: baseline; }
.range-head output { font-weight: 700; font-variant-numeric: tabular-nums; }
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 8px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent) 0 var(--fill, 30%), var(--surface-strong) var(--fill, 30%));
  outline: none;
  cursor: pointer;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: #fff;
  border: 0;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35), 0 0 0 6px color-mix(in srgb, var(--accent) 25%, transparent);
  transition: transform 0.15s;
}
input[type="range"]::-webkit-slider-thumb:active { transform: scale(1.12); }
input[type="range"]::-moz-range-thumb {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: #fff;
  border: 0;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35), 0 0 0 6px color-mix(in srgb, var(--accent) 25%, transparent);
}

.switch {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--surface-strong);
  cursor: pointer;
}
.switch span { display: grid; line-height: 1.3; }
.switch small { color: var(--text-3); font-size: 0.8rem; }
.switch input { position: absolute; opacity: 0; }
.switch i {
  position: relative;
  flex-shrink: 0;
  width: 52px;
  height: 32px;
  border-radius: 999px;
  background: var(--border-strong);
  transition: background 0.25s;
}
.switch i::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.3);
  transition: transform 0.3s var(--ease);
}
.switch input:checked + i { background: var(--bac-sober); }
.switch input:checked + i::after { transform: translateX(20px); }
.switch input:focus-visible + i { outline: 3px solid var(--accent); outline-offset: 2px; }

.gauge { position: relative; width: min(300px, 70vw); aspect-ratio: 1; }
.gauge svg { width: 100%; height: 100%; overflow: visible; }
.gauge .track { stroke: var(--border-strong); }
.gauge .value { transition: stroke-dashoffset 0.9s var(--ease); filter: drop-shadow(0 0 12px var(--gauge-glow, rgba(255, 159, 10, 0.5))); }
.gauge .limit-tick { stroke: var(--text); opacity: 0.7; }
.gauge-center {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  text-align: center;
}
.gauge-center strong {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 3.8rem);
  font-weight: 800;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.gauge-center span { color: var(--text-3); font-size: 0.8rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; margin-top: 6px; }

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--status-color, var(--bac-sober));
  background: color-mix(in srgb, var(--status-color, var(--bac-sober)) 16%, transparent);
}
.result-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; width: 100%; }
.result-stats div { padding: 14px; border-radius: 16px; background: var(--surface-strong); border: 1px solid var(--border); text-align: left; }
.result-stats small { display: block; color: var(--text-3); font-size: 0.78rem; font-weight: 600; }
.result-stats b { font-size: 1.15rem; font-variant-numeric: tabular-nums; }
.disclaimer { color: var(--text-3); font-size: 0.8rem; line-height: 1.5; margin: 0; }

/* ---------- Themes ---------- */

.themes-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: stretch; }
.swatches { display: flex; flex-wrap: wrap; gap: 12px; margin: 26px 0 0; padding: 0; list-style: none; }
.swatch {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px 8px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-strong);
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s var(--ease), border-color 0.2s;
}
.swatch:hover { transform: translateY(-2px); }
.swatch[aria-pressed="true"] { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 25%, transparent); }
.swatch i { display: flex; }
.swatch i b { width: 18px; height: 18px; border-radius: 50%; margin-left: -5px; border: 2px solid var(--surface-solid); }
.swatch i b:first-child { margin-left: 0; }

.buddy-card { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 20px; }
.buddy-card img.mascot { width: 180px; filter: drop-shadow(0 20px 30px rgba(0, 0, 0, 0.4)); }
.buddy-quote {
  margin: 18px 0 0;
  padding: 18px 20px;
  border-radius: 18px;
  background: var(--surface-strong);
  border: 1px solid var(--border);
  font-family: "New York", "Iowan Old Style", Georgia, serif;
  font-style: italic;
  font-size: 1.1rem;
  color: var(--text);
}

/* ---------- iPad ---------- */

.ipad-frame {
  position: relative;
  max-width: 1040px;
  margin: 0 auto;
  padding: 16px;
  border-radius: 46px;
  background: linear-gradient(145deg, color-mix(in srgb, var(--device-frame) 80%, #fff 20%), var(--device-frame));
  box-shadow: var(--shadow), 0 0 0 1px var(--border-strong);
}
.ipad-frame img { border-radius: 32px; width: 100%; }
.ipad-frame::after {
  content: "";
  position: absolute;
  inset: 10% -6% -10%;
  z-index: -1;
  background: radial-gradient(closest-side, color-mix(in srgb, var(--accent-2) 40%, transparent), transparent);
  filter: blur(50px);
}

/* ---------- Privacy ---------- */

.privacy-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }

.safety-banner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 24px;
  align-items: center;
  margin-top: 20px;
  padding: 26px 30px;
  border-radius: var(--radius-l);
  border: 1px solid color-mix(in srgb, var(--bac-intoxicated) 40%, transparent);
  background: linear-gradient(120deg, color-mix(in srgb, var(--bac-intoxicated) 16%, transparent), color-mix(in srgb, var(--bac-impaired) 8%, transparent));
}
.safety-banner .card-icon { margin: 0; }
.safety-banner p { margin: 4px 0 0; color: var(--text-2); }

/* ---------- FAQ ---------- */

.faq { max-width: 860px; margin: 0 auto; display: grid; gap: 14px; }
.faq details {
  border-radius: var(--radius-m);
  border: 1px solid var(--border);
  background: var(--surface);
  transition: border-color 0.3s, background 0.3s;
}
.faq details[open] { border-color: var(--border-strong); background: var(--surface-strong); }
.faq summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 22px 26px;
  cursor: pointer;
  list-style: none;
  font-weight: 650;
  font-size: 1.08rem;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "";
  flex-shrink: 0;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--surface-strong) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23999' stroke-width='2.5' stroke-linecap='round'%3E%3Cpath d='M12 5v14M5 12h14'/%3E%3C/svg%3E") center/16px no-repeat;
  transition: transform 0.35s var(--ease);
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq .answer { padding: 0 26px 24px; color: var(--text-2); }
.faq .answer p { margin: 0 0 10px; }

/* ---------- CTA ---------- */

.cta {
  position: relative;
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 30px;
  padding: clamp(34px, 6vw, 70px);
  border-radius: var(--radius-xl);
  overflow: hidden;
  color: #fff;
  background:
    radial-gradient(600px 400px at 90% 10%, color-mix(in srgb, var(--accent-3) 70%, transparent), transparent 70%),
    radial-gradient(700px 500px at 0% 100%, color-mix(in srgb, var(--accent-2) 80%, transparent), transparent 70%),
    linear-gradient(135deg, var(--accent), color-mix(in srgb, var(--accent-2) 70%, #000));
  box-shadow: 0 40px 90px -40px color-mix(in srgb, var(--accent) 80%, transparent);
}
.cta h2 { color: #fff; }
.cta p { color: rgba(255, 255, 255, 0.85); font-size: 1.15rem; max-width: 52ch; margin: 16px 0 28px; }
.cta img { width: clamp(160px, 22vw, 260px); filter: drop-shadow(0 30px 40px rgba(0, 0, 0, 0.35)); animation: bob 6s ease-in-out infinite; }

/* ---------- Contact form ---------- */

.contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 20px; align-items: start; }
.contact-form { display: grid; gap: 18px; }
.float-field { position: relative; }
.float-field input,
.float-field select,
.float-field textarea {
  width: 100%;
  padding: 24px 16px 10px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--surface-strong);
  font-size: 1rem;
  outline: none;
  resize: vertical;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.float-field select { appearance: none; -webkit-appearance: none; }
.float-field option { color: #111; }
.float-field textarea { min-height: 150px; }
.float-field label {
  position: absolute;
  left: 17px;
  top: 17px;
  color: var(--text-3);
  pointer-events: none;
  transform-origin: left top;
  transition: transform 0.2s var(--ease), color 0.2s;
}
.float-field input:focus,
.float-field select:focus,
.float-field textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 22%, transparent); }
.float-field input:focus + label,
.float-field input:not(:placeholder-shown) + label,
.float-field textarea:focus + label,
.float-field textarea:not(:placeholder-shown) + label,
.float-field select + label { transform: translateY(-9px) scale(0.78); color: var(--accent); }
.float-field .error { display: none; margin: 6px 4px 0; color: var(--bac-intoxicated); font-size: 0.85rem; }
.float-field.invalid input,
.float-field.invalid textarea { border-color: var(--bac-intoxicated); }
.float-field.invalid .error { display: block; }
.form-status { min-height: 1.4em; margin: 0; font-weight: 600; color: var(--bac-sober); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }

.contact-links { display: grid; gap: 12px; margin-top: 24px; }
.contact-links a {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--surface-strong);
  text-decoration: none;
  transition: transform 0.2s var(--ease), border-color 0.2s;
}
.contact-links a:hover { transform: translateX(4px); border-color: var(--border-strong); }
.contact-links .card-icon { width: 40px; height: 40px; margin: 0; border-radius: 12px; }
.contact-links .card-icon svg { width: 20px; height: 20px; }
.contact-links small { display: block; color: var(--text-3); }

/* ---------- Footer ---------- */

.site-footer { padding: 70px 0 40px; border-top: 1px solid var(--border); margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr repeat(3, 1fr); gap: 30px; }
.footer-grid h4 { margin: 0 0 14px; font-size: 0.85rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--text-3); }
.footer-grid ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.footer-grid a { color: var(--text-2); text-decoration: none; }
.footer-grid a:hover { color: var(--text); }
.footer-grid p { color: var(--text-2); margin: 14px 0 0; max-width: 38ch; }
.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 16px;
  margin-top: 50px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  color: var(--text-3);
  font-size: 0.85rem;
}

/* ---------- Reveal animation ---------- */

.reveal { opacity: 0; transform: translateY(34px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.reveal-delay-1 { transition-delay: 0.08s; }
.reveal-delay-2 { transition-delay: 0.16s; }
.reveal-delay-3 { transition-delay: 0.24s; }

.back-to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 40;
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px);
  transition: opacity 0.3s, transform 0.3s var(--ease);
}
.back-to-top.visible { opacity: 1; pointer-events: auto; transform: none; }

/* ---------- Responsive ---------- */

@media (max-width: 1080px) {
  .benefit-grid { grid-template-columns: repeat(2, 1fr); }
  .privacy-grid { grid-template-columns: 1fr 1fr; }
  .nav-links a { padding: 8px 10px; }
}

@media (max-width: 920px) {
  .hero-grid,
  .feature-row,
  .beyond-grid,
  .estimator,
  .themes-grid,
  .contact-grid { grid-template-columns: 1fr; }
  .feature-row.reverse .feature-media { order: 0; }
  .estimator-result { border-left: 0; border-top: 1px solid var(--border); }
  .hero-copy { text-align: center; }
  .hero-copy .lead { margin-inline: auto; }
  .hero-cta, .trust-row { justify-content: center; }
  .hero-visual, .hero-stage { min-height: 560px; }
  .hero-ring { width: 470px; height: 470px; }
  .steps { grid-template-columns: 1fr; }
  .cta { grid-template-columns: 1fr; text-align: center; }
  .cta p { margin-inline: auto; }
  .cta img { margin: 0 auto; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .beyond-grid .card-wide { grid-row: auto; }

  .menu-toggle { display: grid; }
  .nav-links {
    position: absolute;
    top: calc(100% + 8px);
    left: 20px;
    right: 20px;
    flex-direction: column;
    padding: 12px;
    border-radius: 24px;
    border: 1px solid var(--border);
    background: color-mix(in srgb, var(--bg) 92%, transparent);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow);
    opacity: 0;
    pointer-events: none;
    transform: translateY(-8px);
    transition: opacity 0.25s, transform 0.25s var(--ease);
  }
  .nav-links a { padding: 12px 16px; font-size: 1rem; }
  .site-header.menu-open .nav-links { opacity: 1; pointer-events: auto; transform: none; }
}

@media (max-width: 620px) {
  body { font-size: 16px; }
  .benefit-grid, .privacy-grid, .field-row, .form-row, .footer-grid, .drink-picker { grid-template-columns: 1fr; }
  .hero-visual, .hero-stage { min-height: 500px; }
  .hero-stage .device-main { width: 230px; }
  .hero-stage .device-left, .hero-stage .device-right { width: 180px; }
  .hero-stage .device-left { left: -6%; }
  .hero-stage .device-right { right: -6%; }
  .hero-ring { width: 360px; height: 360px; }
  .hero-mascot { width: 90px; right: 0; }
  .chip-1 { left: 0; top: 2%; }
  .chip-2 { right: 0; }
  .chip-3 { display: none; }
  .feature-media { min-height: 420px; gap: 12px; }
  .feature-media .device { width: 190px; }
  .feature-media .device + .device { margin-top: 60px; }
  .nav-actions .btn { display: none; }
  .safety-banner { grid-template-columns: 1fr; text-align: center; }
  .safety-banner .card-icon { margin: 0 auto; }
  .buddy-card { grid-template-columns: 1fr; }
  .buddy-card img.mascot { margin: 0 auto; width: 140px; }
  .gallery .device { width: 210px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}

@media print {
  .aurora, .grain, .site-header, .back-to-top, .gallery-controls { display: none; }
  body { background: #fff; color: #000; }
}