:root {
  --bg: #050505;
  --text: #f5f5f3;
  --muted: rgba(245, 245, 243, .46);
  --line: rgba(255, 255, 255, .075);
  --font: 'Archivo', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --ease: cubic-bezier(.2, .75, .15, 1);

  --pad-x: clamp(14px, 4.2vw, 48px);
  --gap: clamp(8px, 1.4svh, 16px);
  --radius: clamp(16px, 2.6svh, 28px);

  /* mobile (portrait) scale */
  --logo-h: clamp(18px, min(6.4vw, 3.6svh), 30px);
  --fs-amount: clamp(26px, min(10.5vw, 5.8svh), 48px);
  --fs-label: clamp(9px, min(2.6vw, 1.45svh), 12px);
  --cta: clamp(42px, min(13vw, 7svh), 58px);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { background: var(--bg); -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  overflow: hidden;
  overscroll-behavior: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-tap-highlight-color: transparent;
}

/* ---------- Background ---------- */
.bg { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.bg::before {
  content: "";
  position: absolute;
  left: 50%; top: -28vh;
  width: 140vmax; height: 70vh;
  translate: -50% 0;
  background: radial-gradient(closest-side, rgba(255, 255, 255, .085), transparent);
}
.bg::after {
  content: "";
  position: absolute; inset: 0;
  opacity: .05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 .6 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- Layout ---------- */
.app {
  position: relative; z-index: 1;
  height: 100vh; height: 100svh;
  max-width: 1280px;
  margin: 0 auto;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: calc(var(--gap) * 1.4);
  padding:
    max(clamp(14px, 3svh, 40px), env(safe-area-inset-top))
    max(var(--pad-x), env(safe-area-inset-right))
    max(clamp(10px, 2svh, 24px), env(safe-area-inset-bottom))
    max(var(--pad-x), env(safe-area-inset-left));
}

/* ---------- Header ---------- */
.top { text-align: center; animation: drop .9s var(--ease) both; }

.title {
  display: flex; flex-direction: column; align-items: center;
  gap: clamp(6px, 1svh, 12px);
  font-weight: 800;
  line-height: .9;
}
.title-sm {
  font-size: clamp(10px, min(2.9vw, 1.6svh), 13px);
  font-weight: 500;
  letter-spacing: .42em;
  padding-left: .42em;
  text-transform: uppercase;
  color: var(--muted);
}
.title-lg {
  font-size: clamp(28px, min(10vw, 5.4svh), 76px);
  font-stretch: 112%;
  letter-spacing: -.035em;
  padding-bottom: .06em;
  background: linear-gradient(180deg, #fff 25%, #8f8f8f 115%);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}
.rule {
  display: block;
  width: clamp(44px, 12vw, 72px); height: 2px;
  margin: clamp(8px, 1.6svh, 18px) auto 0;
  border-radius: 2px;
  background: linear-gradient(90deg, #e42b12, #ff0038, #b6f23a, #00e1f0);
}

/* ---------- Cards (mobile: 4 stacked rows) ---------- */
.list {
  display: grid;
  grid-template-rows: repeat(4, minmax(0, 1fr));
  gap: var(--gap);
  min-height: 0;
}

.card {
  --c: #fff;
  --glow: color-mix(in srgb, var(--c) 17%, transparent);
  position: relative; isolation: isolate; overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  grid-template-areas: "brand cta" "bonus cta";
  grid-template-rows: auto auto;
  align-content: center; align-items: center;
  column-gap: clamp(12px, 3.6vw, 24px);
  row-gap: clamp(3px, .7svh, 8px);
  padding: 0 clamp(14px, 4vw, 26px) 0 clamp(16px, 4.8vw, 30px);
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background:
    radial-gradient(120% 150% at 0% 50%, var(--glow), transparent 55%),
    linear-gradient(180deg, rgba(255, 255, 255, .045), rgba(255, 255, 255, .012)),
    #0a0a0b;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .05), 0 20px 40px -24px #000;
  color: inherit; text-decoration: none;
  transition: transform .5s var(--ease), border-color .4s, box-shadow .5s var(--ease);
  animation: rise .8s var(--ease) both;
  animation-delay: calc(var(--i) * 80ms + 160ms);
}

/* cursor spotlight */
.card::before {
  content: "";
  position: absolute; inset: 0; z-index: -1;
  background: radial-gradient(380px circle at var(--mx, 50%) var(--my, 50%),
    color-mix(in srgb, var(--c) 14%, transparent), transparent 60%);
  opacity: 0;
  transition: opacity .4s;
}

/* accent bar */
.card::after {
  content: "";
  position: absolute;
  left: 0; top: 50%;
  width: 3px; height: 42%;
  translate: 0 -50%;
  border-radius: 0 3px 3px 0;
  background: linear-gradient(var(--c2, var(--c)), var(--c));
  box-shadow: 0 0 18px 1px var(--c);
}

.brand {
  grid-area: brand;
  align-self: end;
  display: flex; align-items: center;
  height: calc(var(--logo-h) * 1.15);
  min-width: 0;
}
.brand img {
  display: block;
  height: calc(var(--logo-h) * var(--ls, 1));
  width: auto;
  max-width: 100%;
  object-fit: contain;
  object-position: left center;
  user-select: none;
  -webkit-user-drag: none;
}

.bonus {
  grid-area: bonus;
  align-self: start;
  display: flex; flex-direction: column;
  gap: clamp(3px, .6svh, 7px);
}
.amount {
  display: flex; align-items: flex-start; gap: .1em;
  font-size: var(--fs-amount);
  font-weight: 800;
  font-stretch: 80%;
  line-height: .9;
  letter-spacing: -.025em;
  font-variant-numeric: lining-nums tabular-nums;
}
.amount sup {
  vertical-align: baseline;
  font-size: .34em;
  font-weight: 700;
  font-stretch: 100%;
  letter-spacing: .03em;
  line-height: 1;
  margin-top: .2em;
  color: var(--c);
}
.label {
  font-size: var(--fs-label);
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--muted);
  white-space: nowrap;
}

.cta {
  grid-area: cta;
  position: relative;
  display: inline-flex; align-items: center; justify-content: center;
  gap: 12px;
  width: var(--cta); height: var(--cta);
  border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--c) 45%, transparent);
  background: color-mix(in srgb, var(--c) 12%, transparent);
  color: var(--c);
  transition: background .35s, color .35s, border-color .35s;
}
.cta::after {
  content: "";
  position: absolute; inset: -1px;
  border-radius: inherit;
  border: 1px solid var(--c);
  animation: ping 2.8s var(--ease) infinite;
  animation-delay: calc(var(--i) * .45s + 1.2s);
  opacity: 0;
}
.cta-t { display: none; }
.cta-i { display: grid; place-items: center; width: 100%; height: 100%; border-radius: 50%; transition: background .35s, color .35s; }
.cta svg { width: 42%; height: 42%; transition: transform .45s var(--ease); }

/* states */
.card:active { transform: scale(.985); }
.card:active .cta { background: var(--c); color: #050505; border-color: var(--c); }
.card:focus-visible { outline: 2px solid var(--c); outline-offset: 3px; }

@media (hover: hover) {
  .card:hover {
    transform: translateY(-4px);
    border-color: color-mix(in srgb, var(--c) 38%, transparent);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, .06),
      0 30px 60px -30px color-mix(in srgb, var(--c) 50%, transparent);
  }
  .card:hover::before { opacity: 1; }
  .card:hover .cta { background: var(--c); color: #050505; border-color: var(--c); }
  .card:hover .cta svg { transform: translate(2px, -2px); }
}

/* ---------- Footer ---------- */
.foot { display: flex; justify-content: center; align-items: center; }
.age {
  font-size: 10px; font-weight: 700; letter-spacing: .12em;
  color: var(--muted);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 4px 10px;
}

/* ---------- Tablet: 2×2 vertical cards ---------- */
@media (min-width: 640px) {
  :root {
    --logo-h: clamp(26px, min(4.8vw, 4.6svh), 46px);
    --fs-amount: clamp(44px, min(10vw, 9svh), 104px);
    --fs-label: clamp(10px, min(1.4vw, 1.5svh), 13px);
  }

  .list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    grid-template-rows: repeat(2, minmax(0, 1fr));
    align-self: center;
    height: min(100%, 720px);
  }

  .card {
    grid-template-columns: minmax(0, 1fr);
    grid-template-areas: "brand" "bonus" "cta";
    grid-template-rows: auto auto auto;
    align-content: center; align-items: start;
    row-gap: clamp(10px, 1.8svh, 18px);
    padding: clamp(18px, 3svh, 32px);
    background:
      radial-gradient(120% 80% at 50% 0%, var(--glow), transparent 60%),
      linear-gradient(180deg, rgba(255, 255, 255, .045), rgba(255, 255, 255, .012)),
      #0a0a0b;
  }
  .card::after {
    left: clamp(18px, 3svh, 32px); top: 0;
    width: 44px; height: 3px;
    translate: none;
    border-radius: 0 0 3px 3px;
  }

  .cta {
    width: 100%;
    height: clamp(46px, 6.6svh, 58px);
    justify-content: space-between;
    padding: 0 6px 0 clamp(16px, 2svh, 22px);
    border-color: var(--line);
    background: rgba(255, 255, 255, .04);
    color: var(--text);
  }
  .cta::after { display: none; }
  .cta-t {
    display: inline;
    font-size: clamp(11px, 1.6svh, 14px);
    font-weight: 700;
    letter-spacing: .14em;
    text-transform: uppercase;
    white-space: nowrap;
  }
  .cta-i {
    width: auto; height: calc(100% - 12px);
    aspect-ratio: 1;
    background: var(--c);
    color: #050505;
  }

  .card:active .cta { color: #050505; }
  .card:active .cta-i { background: #050505; color: var(--c); }
}

@media (min-width: 640px) and (hover: hover) {
  .card:hover .cta-i { background: #050505; color: var(--c); }
}

/* ---------- Desktop: 4 columns ---------- */
@media (min-width: 1000px) {
  :root {
    --fs-amount: clamp(48px, min(5.6vw, 10svh), 96px);
    --logo-h: clamp(26px, min(2.8vw, 4.6svh), 42px);
  }
  .list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    grid-template-rows: minmax(0, 1fr);
    align-self: center;
    height: min(100%, 360px);
  }
}

/* ---------- Phone landscape ---------- */
@media (orientation: landscape) and (max-height: 540px) {
  :root {
    --gap: 10px;
    --logo-h: clamp(16px, 6.4svh, 28px);
    --fs-amount: clamp(30px, 11svh, 56px);
    --fs-label: clamp(8px, 2.4svh, 11px);
  }
  .app { gap: 10px; }
  .title { flex-direction: row; align-items: baseline; justify-content: center; gap: .7em; }
  .title-lg { font-size: clamp(20px, 7svh, 34px); }
  .rule { display: none; }
  .list {
    grid-template-columns: repeat(4, minmax(0, 1fr));
    grid-template-rows: minmax(0, 1fr);
    height: 100%;
  }
  .card { padding: clamp(14px, 4svh, 22px); row-gap: clamp(6px, 2svh, 12px); }
  .card::after { left: clamp(14px, 4svh, 22px); }
  .cta { height: clamp(38px, 11svh, 50px); padding-left: 14px; }
  .cta-t { font-size: 11px; letter-spacing: .06em; }
  .label { letter-spacing: .1em; }
}

/* ---------- Motion ---------- */
@keyframes rise { from { opacity: 0; translate: 0 18px; } to { opacity: 1; translate: 0 0; } }
@keyframes drop { from { opacity: 0; translate: 0 -10px; } to { opacity: 1; translate: 0 0; } }
@keyframes ping {
  0% { opacity: .55; scale: 1; }
  60%, 100% { opacity: 0; scale: 1.35; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}