:root {
  --bg: #07070d;
  --bg-grad: radial-gradient(1200px 600px at 50% -20%, #251338 0%, #0a0813 50%, #07070d 100%);
  --card: #0f1020;
  --card-2: #14152a;
  --line: #25274a;
  --line-2: #1a1b34;
  --txt: #ecedfa;
  --mut: #8e90b8;
  --pink: #ff3aa3;
  --magenta: #d63aff;
  --cyan: #5ad9ff;
  --warn: #f5b13d;
  --ok: #36d399;
}
* { box-sizing: border-box; }
html, body { margin:0; padding:0; }
body {
  background: var(--bg-grad);
  color: var(--txt);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", Roboto, sans-serif;
  min-height: 100vh; padding-bottom: 60px;
}
a { color: inherit; text-decoration: none; }

/* ---------- header ---------- */
.nav {
  display: flex; align-items: center; gap: 24px;
  padding: 14px 28px; border-bottom: 1px solid var(--line-2);
  position: sticky; top: 0; background: rgba(10,8,19,.78); backdrop-filter: blur(12px); z-index: 50;
}
.nav .brand {
  font-weight: 900; letter-spacing: 1px; font-size: 20px;
  background: linear-gradient(90deg, var(--pink), var(--magenta), var(--cyan));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.nav .brand span { color: var(--pink); -webkit-text-fill-color: var(--pink); }
.nav .brand em { font-style: normal; font-weight: 600; color: var(--mut); margin-left: 4px; font-size: 14px; }
.nav nav { display: flex; gap: 18px; margin-left: auto; }
.nav nav a { color: var(--mut); font-size: 14px; padding: 6px 0; }
.nav nav a.active { color: var(--txt); border-bottom: 2px solid var(--pink); }
.provider-chip {
  font-size: 11px; padding: 4px 10px; border: 1px solid var(--line); border-radius: 20px; color: var(--mut);
}

/* ---------- stepper ---------- */
.stepper {
  display: flex; align-items: center; justify-content: center; gap: 6px; max-width: 920px;
  margin: 28px auto 18px; padding: 0 20px;
}
.step {
  display: flex; align-items: center; gap: 8px; color: var(--mut); font-size: 13px; cursor: pointer;
}
.step b {
  width: 26px; height: 26px; border-radius: 50%; background: var(--card); border: 1px solid var(--line);
  display: inline-flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700;
}
.step.active { color: var(--txt); }
.step.active b { background: var(--pink); border-color: var(--pink); color: #fff; box-shadow: 0 0 24px rgba(255,58,163,.5); }
.step.done b { background: var(--card-2); border-color: var(--magenta); color: var(--magenta); }
.sep { width: 32px; height: 1px; background: var(--line); }

/* ---------- card ---------- */
.card {
  max-width: 980px; margin: 0 auto; background: linear-gradient(180deg, var(--card), var(--card-2));
  border: 1px solid var(--line); border-radius: 22px; padding: 36px 40px;
  box-shadow: 0 30px 80px rgba(0,0,0,.55), 0 0 0 1px rgba(255,58,163,.04) inset;
}
.card.hidden { display: none; }
h1 { margin: 0 0 6px; font-size: 28px; text-align: center; letter-spacing: -.3px; }
.sub { color: var(--mut); text-align: center; margin: 0 0 28px; }
.ok-h1 { background: linear-gradient(90deg, var(--pink), var(--cyan)); -webkit-background-clip: text; color: transparent; }

/* ---------- buttons / forms ---------- */
button, .primary {
  font-family: inherit; font-size: 14px; padding: 11px 20px; border-radius: 10px;
  background: var(--card); color: var(--txt); border: 1px solid var(--line); cursor: pointer;
  transition: .15s ease;
}
button:hover { border-color: var(--magenta); }
button.primary {
  background: linear-gradient(90deg, var(--pink), var(--magenta)); border-color: transparent;
  font-weight: 700; box-shadow: 0 8px 28px rgba(214,58,255,.35);
}
button.primary:hover { transform: translateY(-1px); box-shadow: 0 12px 36px rgba(214,58,255,.45); }
button.primary.big { width: 100%; padding: 14px; font-size: 15px; }
button:disabled { opacity: .4; cursor: not-allowed; transform: none !important; box-shadow: none !important; }
.actions { display: flex; justify-content: center; gap: 12px; margin-top: 28px; flex-wrap: wrap; }
.label { color: var(--mut); font-size: 12px; text-transform: uppercase; letter-spacing: 1px; margin: 18px 0 8px; font-weight: 600; }
input, textarea, select {
  width: 100%; background: #0a0a18; color: var(--txt); border: 1px solid var(--line);
  border-radius: 10px; padding: 11px 14px; font-family: inherit; font-size: 14px;
}
input:focus, textarea:focus { outline: none; border-color: var(--magenta); box-shadow: 0 0 0 3px rgba(214,58,255,.18); }

/* ---------- industry grid ---------- */
.industry-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px;
}
.industry-tile {
  background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 18px 14px;
  text-align: center; cursor: pointer; transition: .15s; position: relative;
}
.industry-tile:hover { border-color: var(--magenta); transform: translateY(-2px); }
.industry-tile.selected {
  border-color: var(--pink);
  box-shadow: 0 0 0 2px rgba(255,58,163,.25), 0 0 32px rgba(255,58,163,.3);
  background: linear-gradient(180deg, rgba(255,58,163,.08), transparent);
}
.industry-tile .em { font-size: 28px; display: block; margin-bottom: 6px; }
.industry-tile .lb { font-weight: 600; font-size: 13px; }
.industry-tile .ev { color: var(--mut); font-size: 11px; margin-top: 2px; }

/* ---------- opt / seg / glow grid ---------- */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.glow-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }
.opt {
  text-align: left; background: var(--card); border: 1px solid var(--line); border-radius: 12px;
  padding: 14px; color: var(--txt); cursor: pointer; transition: .15s;
}
.opt:hover { border-color: var(--magenta); }
.opt.selected {
  border-color: var(--pink);
  box-shadow: 0 0 0 2px rgba(255,58,163,.25), 0 0 28px rgba(255,58,163,.25);
}
.opt-title { font-weight: 700; }
.opt-desc { color: var(--mut); font-size: 12px; margin-top: 6px; }
.price { color: var(--warn); font-weight: 600; font-size: 13px; margin-top: 6px; }
.price.ok { color: var(--ok); }
.seg {
  display: inline-flex; gap: 4px; background: #0a0a18; padding: 4px; border-radius: 10px;
  border: 1px solid var(--line); flex-wrap: wrap;
}
.seg button {
  padding: 8px 12px; font-size: 13px; background: transparent; border: 1px solid transparent; border-radius: 7px;
}
.seg button.selected { background: var(--pink); color: #fff; border-color: var(--pink); font-weight: 600; }
.seg button:hover { border-color: var(--line); }
.seg button.selected:hover { border-color: var(--pink); }

/* ---------- drop ---------- */
.drop {
  display: flex; align-items: center; justify-content: center; position: relative;
  min-height: 280px; border: 2px dashed var(--line); border-radius: 14px;
  background: #0a0a18; cursor: pointer; transition: .15s; overflow: hidden;
}
.drop:hover { border-color: var(--magenta); }
.drop-inner { text-align: center; color: var(--mut); }
.drop-inner .drop-icon { font-size: 36px; color: var(--magenta); margin-bottom: 8px; }
.drop-inner small { display: block; font-size: 11px; margin-top: 8px; opacity: .7; }
.drop img { max-width: 100%; max-height: 280px; border-radius: 10px; }

/* ---------- variants ---------- */
.variants { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 14px; }
.variant {
  background: #050510; border: 2px solid var(--line); border-radius: 14px; padding: 8px; cursor: pointer; transition: .15s;
}
.variant.selected { border-color: var(--pink); box-shadow: 0 0 28px rgba(255,58,163,.35); }
.variant img { width: 100%; border-radius: 8px; display: block; }
.variant.mock img { filter: contrast(1.2) saturate(1.6) brightness(1.05) drop-shadow(0 0 12px var(--pink)); background: #000; }
.variant-label { color: var(--mut); font-size: 12px; padding: 6px 4px 2px; display: flex; justify-content: space-between; }
.regen { display: flex; gap: 8px; margin-top: 16px; }
.regen input { flex: 1; }

/* ---------- spec box ---------- */
.spec {
  margin-top: 14px; background: #0a0a18; border: 1px solid var(--line); border-radius: 10px;
  padding: 12px 14px; font-size: 12.5px; color: var(--mut); white-space: pre-wrap; line-height: 1.55;
}
.spec b { color: var(--txt); }

/* ---------- customize ---------- */
.customize { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.preview-final { border-radius: 14px; overflow: hidden; background: #000; }
.preview-final img { width: 100%; display: block; }
.dims { color: var(--mut); font-size: 12px; text-align: center; margin-top: 8px; }
.size-labels { display: flex; justify-content: space-between; color: var(--mut); font-size: 11px; margin-top: 4px; }
input[type=range] { accent-color: var(--pink); }
.qty { display: inline-flex; align-items: center; gap: 12px; background: #0a0a18; border: 1px solid var(--line); border-radius: 10px; padding: 4px 8px; }
.qty button { padding: 6px 12px; border: 0; background: transparent; font-size: 18px; }
.qty span { min-width: 24px; text-align: center; }
.quote {
  margin-top: 22px; background: #0a0a18; border: 1px solid var(--line); border-radius: 12px; padding: 14px;
}
.quote .row { display: flex; justify-content: space-between; padding: 6px 0; border-bottom: 1px dashed var(--line-2); font-size: 13px; }
.quote .row:last-of-type { border: 0; }
.quote .row.total { padding-top: 12px; font-size: 18px; font-weight: 800; color: var(--warn); border: 0; }

/* ---------- checkout ---------- */
.checkout { display: grid; grid-template-columns: 1.2fr 1fr; gap: 28px; }
.order-summary { background: #0a0a18; border: 1px solid var(--line); border-radius: 12px; padding: 16px; margin-bottom: 14px; }
.order-summary .row { display: flex; justify-content: space-between; padding: 4px 0; font-size: 13px; color: var(--mut); }
.order-summary .row b { color: var(--txt); }
.muted { color: var(--mut); }
.small { font-size: 11px; }

/* ---------- done ---------- */
.done { text-align: center; }
.order-id {
  display: inline-block; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: 28px; font-weight: 800;
  letter-spacing: 2px; padding: 14px 24px; border-radius: 12px; margin: 12px 0 20px;
  background: linear-gradient(90deg, rgba(255,58,163,.15), rgba(90,217,255,.15));
  border: 1px solid var(--pink);
}

/* ---------- responsive ---------- */
@media (max-width: 760px) {
  .two-col, .customize, .checkout { grid-template-columns: 1fr; }
  .card { padding: 24px 18px; }
  .nav { padding: 12px 16px; flex-wrap: wrap; }
  .stepper { gap: 4px; }
  .sep { width: 12px; }
}

.hidden { display: none !important; }