/* ============================================================
   420Labs Card — "Alien Banking" design system
   Ground: warm bone porcelain (light) / green-black ink (dark)
   Accent: ultraviolet. Plasma green reserved for the card object.
   Type: Unbounded (display, TON vernacular) · Instrument Sans (body)
         IBM Plex Mono (data, labels, annotations)
   ============================================================ */

:root {
  --bone: #eff1ec;
  --bone-2: #e6e9e2;
  --ink: #12160f;
  --ink-soft: #3a4036;
  --haze: #787f72;
  --line: #d3d7cd;
  --uv: #6a4df4;
  --uv-soft: rgba(106, 77, 244, 0.09);
  --plasma: #c6ff4a;
  --ok: #2b7a52;
  --warn: #b06f1d;
  --err: #bb4038;

  --bg: var(--bone);
  --surface: #f6f7f3;
  --surface-2: #ffffff;
  --text: var(--ink);
  --muted: var(--haze);
  --border: var(--line);
  --card-glow: rgba(106, 77, 244, 0.18);
  --glow-a: rgba(106, 77, 244, 0.06);
  --glow-b: rgba(120, 160, 90, 0.05);

  --font-display: "Unbounded", system-ui, sans-serif;
  --font-body: "Instrument Sans", -apple-system, "Segoe UI", sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", monospace;
  --radius: 4px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #141a15;
    --surface: #1b221b;
    --surface-2: #212a20;
    --text: #e9ede4;
    --ink-soft: #b3bba9;
    --muted: #808a79;
    --border: #2c352a;
    --uv: #a593ff;
    --uv-soft: rgba(165, 147, 255, 0.13);
    --ok: #5cc394;
    --warn: #d99a4e;
    --err: #e07a72;
    --card-glow: rgba(165, 147, 255, 0.24);
    --glow-a: rgba(165, 147, 255, 0.10);
    --glow-b: rgba(120, 200, 120, 0.06);
  }
}
:root[data-theme="light"] {
  --bg: #eff1ec; --surface: #f6f7f3; --surface-2: #ffffff;
  --text: #12160f; --ink-soft: #3a4036; --muted: #787f72; --border: #d3d7cd;
  --uv: #6a4df4; --uv-soft: rgba(106, 77, 244, 0.09);
  --ok: #2b7a52; --warn: #b06f1d; --err: #bb4038;
  --card-glow: rgba(106, 77, 244, 0.18);
  --glow-a: rgba(106, 77, 244, 0.06); --glow-b: rgba(120, 160, 90, 0.05);
}
:root[data-theme="dark"] {
  --bg: #141a15; --surface: #1b221b; --surface-2: #212a20;
  --text: #e9ede4; --ink-soft: #b3bba9; --muted: #808a79; --border: #2c352a;
  --uv: #a593ff; --uv-soft: rgba(165, 147, 255, 0.13);
  --ok: #5cc394; --warn: #d99a4e; --err: #e07a72;
  --card-glow: rgba(165, 147, 255, 0.24);
  --glow-a: rgba(165, 147, 255, 0.10); --glow-b: rgba(120, 200, 120, 0.06);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  background-image:
    radial-gradient(60% 50% at 82% 8%, var(--glow-a), transparent 70%),
    radial-gradient(50% 45% at 5% 30%, var(--glow-b), transparent 70%);
  background-attachment: fixed;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16.5px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  transition: background 0.25s, color 0.25s;
}
a { color: inherit; text-decoration: none; }
button { font-family: inherit; }
::selection { background: var(--uv); color: #fff; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 32px; }

/* ---------- annotations / labels ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--uv);
  display: flex; align-items: center; gap: 12px;
}
.eyebrow::after { content: ""; height: 1px; width: 48px; background: var(--uv); opacity: 0.4; }
.mono { font-family: var(--font-mono); }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.logo {
  font-family: var(--font-display); font-weight: 600; font-size: 15px;
  letter-spacing: 0.01em; display: flex; align-items: center; gap: 11px;
}
.logo svg { display: block; flex-shrink: 0; }
.logo-txt { display: flex; flex-direction: column; line-height: 1.08; }
.logo-txt b {
  font-family: var(--font-mono); font-size: 8.5px; font-weight: 500;
  letter-spacing: 0.26em; color: var(--muted); margin-top: 2px;
}
.nav-links { display: flex; gap: 26px; align-items: center; }
.nav-links a {
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--muted);
}
.nav-links a:hover { color: var(--text); }
.nav-links .cta {
  color: #fff; background: var(--uv); padding: 10px 20px; border-radius: var(--radius);
  transition: transform 0.15s, box-shadow 0.15s;
}
.nav-links .cta:hover { color: #fff; transform: translateY(-1px); box-shadow: 0 6px 20px var(--card-glow); }
.theme-btn {
  background: none; border: 1px solid var(--border); color: var(--muted);
  width: 34px; height: 34px; border-radius: 50%; cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center; font-size: 14px;
}
.theme-btn:hover { color: var(--text); border-color: var(--muted); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 15px 30px; border-radius: var(--radius);
  font-family: var(--font-mono); font-size: 13px; letter-spacing: 0.1em; text-transform: uppercase;
  white-space: nowrap;
  border: none; cursor: pointer; transition: transform 0.15s, box-shadow 0.15s, background 0.15s;
}
.btn-primary { background: var(--ink); color: var(--bone); }
:root[data-theme="dark"] .btn-primary { background: var(--bone); color: var(--ink); }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .btn-primary { background: #eceee6; color: #12160f; }
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 28px rgba(0,0,0,0.18); }
.btn-primary:disabled { opacity: 0.4; cursor: not-allowed; transform: none; }
.btn-uv { background: var(--uv); color: #fff; }
.btn-uv:hover { transform: translateY(-2px); box-shadow: 0 10px 28px var(--card-glow); }
.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--text); }
.btn-sm { padding: 10px 18px; font-size: 11px; }

/* ---------- hero ---------- */
.hero { padding: 88px 0 96px; display: grid; grid-template-columns: 7fr 5fr; gap: 64px; align-items: center; }
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(40px, 5.6vw, 72px);
  font-weight: 600; line-height: 1.04; letter-spacing: -0.01em;
  text-wrap: balance; margin: 26px 0 24px;
}
.hero h1 .uv { color: var(--uv); }
.hero p.sub { color: var(--ink-soft); font-size: 19px; max-width: 30em; margin-bottom: 38px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-note { margin-top: 22px; font-family: var(--font-mono); font-size: 12px; color: var(--muted); letter-spacing: 0.06em; }
.hero-note b { color: var(--ok); font-weight: 500; }

/* ---------- the card object ---------- */
.card-stage { perspective: 1400px; display: flex; justify-content: center; }
.vcard {
  width: 100%; max-width: 420px; aspect-ratio: 1.586;
  border-radius: 20px; position: relative; overflow: hidden;
  background: #0f1512 url("/assets/card-cover.png") center/cover no-repeat;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 40px 90px -20px rgba(12, 16, 10, 0.55), 0 0 70px var(--card-glow);
  color: #eceee6;
  transform-style: preserve-3d;
  transition: transform 0.14s ease-out;
}
.vcard .veil { /* faint bottom fade so card details stay legible over art */
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(10,14,12,0.55) 100%);
}
.vcard .body {
  position: absolute; inset: 0; padding: 24px 26px;
  display: flex; flex-direction: column; justify-content: space-between;
}
.vcard::after { /* holo sheen */
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(115deg, transparent 34%, rgba(255,255,255,0.09) 46%, rgba(198,255,74,0.10) 53%, transparent 64%);
  transform: translateX(var(--sheen, 0));
  pointer-events: none;
}
.vcard .row { display: flex; justify-content: space-between; align-items: flex-start; position: relative; }
.vcard .brand { font-family: var(--font-display); font-size: 15px; font-weight: 600; letter-spacing: 0.02em; }
.vcard .kind { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.28em; color: var(--plasma); padding-top: 4px; }
.vcard .lower { position: relative; }
.vcard .num { font-family: var(--font-mono); font-size: 20px; letter-spacing: 0.14em; text-shadow: 0 1px 8px rgba(0,0,0,0.4); }
.vcard .meta { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.12em; color: rgba(236,238,230,0.6); display: flex; gap: 30px; margin-top: 14px; }
.vcard .meta b { display: block; color: #eceee6; font-size: 12.5px; font-weight: 500; margin-top: 3px; letter-spacing: 0.06em; }

/* ---------- marquee ---------- */
.marquee { border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); overflow: hidden; padding: 15px 0; }
.marquee-track {
  display: flex; gap: 56px; width: max-content;
  font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.2em; text-transform: uppercase;
  color: var(--muted); white-space: nowrap;
  animation: marquee 36s linear infinite;
}
.marquee-track span b { color: var(--uv); font-weight: 500; }
@keyframes marquee { to { transform: translateX(-50%); } }
@media (prefers-reduced-motion: reduce) {
  .marquee-track { animation: none; }
  .vcard { transition: none; }
}

/* ---------- sections ---------- */
.section { padding: 104px 0; border-top: 1px solid var(--border); }
.section-head { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: end; margin-bottom: 64px; }
.section h2 {
  font-family: var(--font-display); font-size: clamp(28px, 3.4vw, 44px);
  font-weight: 500; line-height: 1.12; letter-spacing: -0.005em; text-wrap: balance; margin-top: 20px;
}
.section .lead { color: var(--ink-soft); font-size: 17px; max-width: 32em; }

.steps { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.step-cell { padding: 40px 34px 46px; background: var(--surface); position: relative; }
.step-cell + .step-cell { border-left: 1px solid var(--border); }
.step-cell .n {
  font-family: var(--font-display); font-size: 60px; font-weight: 600;
  color: transparent; -webkit-text-stroke: 1.2px var(--uv);
  line-height: 1; display: block; margin-bottom: 26px; opacity: 0.85;
}
.step-cell h3 { font-family: var(--font-display); font-size: 17px; font-weight: 500; margin-bottom: 12px; }
.step-cell p { font-size: 15px; color: var(--ink-soft); max-width: 26em; }

.benefit-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 56px; }
.benefit .eyebrow { color: var(--muted); }
.benefit .eyebrow::after { background: var(--border); opacity: 1; }
.benefit h3 { font-family: var(--font-display); font-size: 18px; font-weight: 500; margin: 18px 0 12px; }
.benefit p { font-size: 15px; color: var(--ink-soft); }

/* ---------- data strip ---------- */
.datastrip { display: grid; grid-template-columns: repeat(3, 1fr); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; }
.datastrip > div { padding: 34px 36px; background: var(--surface); }
.datastrip > div + div { border-left: 1px solid var(--border); }
.datastrip b {
  font-family: var(--font-display); font-size: clamp(28px, 3vw, 40px); font-weight: 600;
  display: block; letter-spacing: -0.01em; font-variant-numeric: tabular-nums;
}
.datastrip span { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); }

/* ---------- reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

/* ---------- page head (sub pages) ---------- */
.page-head { padding: 76px 0 52px; border-bottom: 1px solid var(--border); }
.page-head h1 { font-family: var(--font-display); font-size: clamp(30px, 4vw, 48px); font-weight: 600; letter-spacing: -0.005em; margin-top: 20px; }
.page-head p { color: var(--ink-soft); margin-top: 14px; max-width: 34em; font-size: 17px; }

/* ---------- flow panels (apply / my) ---------- */
.panel {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 34px 36px; margin-bottom: 18px;
  transition: opacity 0.25s;
}
.panel h3 { font-family: var(--font-display); font-size: 15px; font-weight: 500; display: flex; align-items: center; gap: 14px; margin-bottom: 8px; }
.panel .hint { color: var(--muted); font-size: 14.5px; margin-bottom: 20px; }
.stepnum {
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em;
  width: 30px; height: 30px; border-radius: 50%; flex-shrink: 0;
  border: 1px solid var(--border); color: var(--muted);
  display: inline-flex; align-items: center; justify-content: center;
}
.panel.active { border-color: var(--uv); box-shadow: 0 0 0 1px var(--uv), 0 12px 40px -18px var(--card-glow); }
.panel.active .stepnum { background: var(--uv); color: #fff; border-color: var(--uv); }
.panel.done .stepnum { background: var(--uv-soft); color: var(--uv); border-color: transparent; }
.panel.done .stepnum::before { content: "✓"; }
.panel.done .stepnum span { display: none; }
.panel.locked { opacity: 0.38; pointer-events: none; }

.input {
  width: 100%; background: var(--surface-2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 14px 16px; color: var(--text);
  font-family: var(--font-mono); font-size: 13.5px; outline: none; transition: border-color 0.15s;
}
.input::placeholder { color: var(--muted); }
.input:focus { border-color: var(--uv); }
.field-row { display: flex; gap: 12px; }

.nft-list { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 18px; }
.nft-item {
  background: var(--surface-2); border: 1px solid var(--border); border-radius: 12px;
  padding: 0; overflow: hidden; cursor: pointer; transition: border-color 0.15s, transform 0.15s, box-shadow 0.15s;
}
.nft-item:hover { border-color: var(--uv); transform: translateY(-3px); box-shadow: 0 10px 26px -12px var(--card-glow); }
.nft-item.selected { border-color: var(--uv); box-shadow: 0 0 0 2px var(--uv); }
.nft-item.used { opacity: 0.5; cursor: not-allowed; }
.nft-item.used:hover { transform: none; border-color: var(--border); box-shadow: none; }
.nft-thumb {
  width: 100%; aspect-ratio: 1 / 1; object-fit: cover; display: block;
  background: var(--surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='40' height='40' viewBox='0 0 22 22'%3E%3Cellipse cx='11' cy='11' rx='9.5' ry='4' fill='none' stroke='%23888' stroke-width='1' transform='rotate(-18 11 11)'/%3E%3Ccircle cx='11' cy='11' r='3.4' fill='%23888'/%3E%3C/svg%3E") center/40px no-repeat;
}
.nft-body { padding: 13px 15px 15px; }
.nft-item .name { font-family: var(--font-display); font-size: 14px; font-weight: 500; margin-bottom: 8px; }
.nft-item .tag { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); display: inline-flex; align-items: center; gap: 6px; }
.nft-item .tag::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.nft-item .tag.ok { color: var(--ok); }
.nft-pager { display: flex; align-items: center; justify-content: center; gap: 18px; margin-top: 22px; font-family: var(--font-mono); font-size: 12px; color: var(--muted); letter-spacing: 0.08em; }
.nft-pager button {
  background: var(--surface-2); border: 1px solid var(--border); color: var(--text);
  width: 34px; height: 34px; border-radius: 8px; cursor: pointer; font-size: 15px; transition: border-color 0.15s;
}
.nft-pager button:hover:not(:disabled) { border-color: var(--uv); }
.nft-pager button:disabled { opacity: 0.3; cursor: not-allowed; }
@media (max-width: 560px) { .nft-list { grid-template-columns: repeat(2, 1fr); } }

.quote-box {
  background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 8px 26px; margin: 18px 0;
}
.quote-row { display: flex; justify-content: space-between; align-items: center; gap: 20px; font-size: 14px; padding: 15px 0; }
.quote-row + .quote-row { border-top: 1px dashed var(--border); }
.quote-row .k { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); flex-shrink: 0; }
.quote-row .v { font-family: var(--font-mono); font-size: 13px; word-break: break-all; text-align: right; }
.quote-row .v.big { font-family: var(--font-display); font-size: 26px; font-weight: 600; color: var(--uv); word-break: normal; }
.copy-btn {
  background: var(--surface); border: 1px solid var(--border); color: var(--muted);
  border-radius: 3px; padding: 4px 10px; font-family: var(--font-mono); font-size: 11px;
  cursor: pointer; margin-left: 10px; flex-shrink: 0;
}
.copy-btn:hover { color: var(--text); border-color: var(--muted); }
.countdown { font-family: var(--font-mono); color: var(--uv); font-weight: 600; font-variant-numeric: tabular-nums; }

.alert { border-radius: var(--radius); padding: 15px 20px; font-size: 14px; margin: 16px 0; border: 1px solid; }
.alert-ok { background: color-mix(in srgb, var(--ok) 8%, transparent); border-color: color-mix(in srgb, var(--ok) 35%, transparent); color: var(--ok); }
.alert-err { background: color-mix(in srgb, var(--err) 8%, transparent); border-color: color-mix(in srgb, var(--err) 35%, transparent); color: var(--err); }
.alert-info { background: var(--surface-2); border-color: var(--border); color: var(--ink-soft); }

.dev-pill {
  position: fixed; bottom: 22px; right: 22px; z-index: 99;
  background: color-mix(in srgb, var(--warn) 10%, var(--bg));
  border: 1px solid color-mix(in srgb, var(--warn) 45%, transparent);
  color: var(--warn); font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.18em;
  padding: 7px 16px; border-radius: 99px;
}

/* ---------- my cards ---------- */
.mycard-item {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px 30px; margin-bottom: 16px;
  display: flex; justify-content: space-between; align-items: center; gap: 18px; flex-wrap: wrap;
}
.mycard-item .pan { font-family: var(--font-mono); font-size: 18px; letter-spacing: 0.08em; }
.mycard-item .sub { font-family: var(--font-mono); color: var(--muted); font-size: 12px; margin-top: 6px; letter-spacing: 0.04em; }
.detail-grid { display: grid; gap: 14px; margin-top: 20px; }

/* ---------- faq ---------- */
.faq-list { counter-reset: faq; }
.faq-item { border-bottom: 1px solid var(--border); padding: 30px 0; display: grid; grid-template-columns: 72px 1fr; gap: 20px; }
.faq-item::before {
  counter-increment: faq;
  content: counter(faq, decimal-leading-zero);
  grid-column: 1; grid-row: 1;
  font-family: var(--font-display); font-size: 15px; font-weight: 500; color: var(--uv); padding-top: 2px;
}
.faq-item h3, .faq-item p { grid-column: 2; }
.faq-item h3 { font-family: var(--font-display); font-size: 17px; font-weight: 500; margin-bottom: 10px; }
.faq-item p { color: var(--ink-soft); font-size: 15px; max-width: 42em; }

/* ---------- footer ---------- */
footer { border-top: 1px solid var(--border); padding: 44px 0; margin-top: 40px; }
.foot {
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 14px;
  font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted);
}
.foot a:hover { color: var(--text); }
.foot .links { display: flex; gap: 24px; }

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; padding: 52px 0 64px; gap: 48px; }
  .section { padding: 68px 0; }
  .section-head { grid-template-columns: 1fr; gap: 16px; margin-bottom: 40px; }
  .steps, .benefit-row, .datastrip { grid-template-columns: 1fr; }
  .step-cell + .step-cell { border-left: none; border-top: 1px solid var(--border); }
  .datastrip > div + div { border-left: none; border-top: 1px solid var(--border); }
  .nav-links { gap: 14px; }
  .nav-links .hide-m { display: none; }
  .faq-item { grid-template-columns: 48px 1fr; }
  .panel { padding: 26px 22px; }
  .field-row { flex-direction: column; }
}