/* GADGET UP — shared design system. Spec sections 2, 3, 13. */

:root {
  /* surfaces */
  --bg-0: #07080c;
  --bg-1: #0b0d13;
  --bg-2: #10131b;
  --surface: #12151d;
  --surface-2: #171b26;
  --hairline: rgba(143,163,191,0.14);
  --hairline-strong: rgba(143,163,191,0.30);

  /* ink */
  --ink: #f4f1ea;
  --ink-dim: #c7cdd8;
  --ink-mute: #8fa3bf;
  --ink-faint: #5d6878;

  /* accent */
  --accent: #ff7a18;
  --accent-hot: #ffa04d;
  --accent-deep: #b85708;
  --accent-glow: rgba(255,122,24,0.35);
  --steel: #8fa3bf;

  /* semantic */
  --good: #35c26f;
  --warn: #f5c542;
  --bad: #ff4d4d;

  /* radii */
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 20px;
  --r-xl: 28px;
  --r-pill: 999px;

  /* shadows and glows */
  --shadow-card: inset 0 1px 0 rgba(244,241,234,0.05), 0 20px 50px rgba(0,0,0,0.45);
  --glow-accent: 0 0 24px rgba(255,122,24,0.35), 0 0 80px rgba(255,122,24,0.14);
  --glow-accent-soft: 0 0 40px rgba(255,122,24,0.12);
  --ring-focus: 0 0 0 2px rgba(255,122,24,0.55);

  /* spacing (4px base) */
  --sp-1: 4px;  --sp-2: 8px;  --sp-3: 12px; --sp-4: 16px;
  --sp-5: 24px; --sp-6: 32px; --sp-7: 48px; --sp-8: 64px; --sp-9: 96px;

  /* type scale */
  --fs-hero: clamp(3.5rem, 8.5vw, 8rem);
  --fs-display: clamp(2.25rem, 5vw, 4rem);
  --fs-title: clamp(1.375rem, 2.2vw, 1.75rem);
  --fs-body: 1.0625rem;
  --fs-sm: 0.9375rem;
  --fs-micro: 0.8125rem;

  /* fonts */
  --font-display: "Fraunces", Georgia, serif;
  --font-ui: "Urbanist", system-ui, -apple-system, sans-serif;

  /* motion */
  --ease: cubic-bezier(0.22, 0.61, 0.2, 1);
  --t-fast: 200ms;
  --t-med: 320ms;
  --t-slow: 420ms;
}

/* ---------- base ---------- */

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-ui);
  font-size: var(--fs-body);
  font-weight: 400;
  line-height: 1.6;
  color: var(--ink);
  background:
    radial-gradient(1200px 800px at 82% -10%, #131a2a 0%, transparent 60%),
    radial-gradient(1000px 700px at -12% 28%, #10131f 0%, transparent 55%),
    radial-gradient(900px 900px at 50% 115%, #0e1118 0%, transparent 60%),
    var(--bg-0);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
::selection { background: var(--accent); color: #0b0d13; }
a { color: inherit; text-decoration: none; }
img, canvas, svg, video { max-width: 100%; display: block; }
:focus-visible { outline: none; box-shadow: var(--ring-focus); border-radius: var(--r-sm); }
button { font-family: var(--font-ui); }

.display {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 900;
  font-variation-settings: "opsz" 144;
  letter-spacing: -0.02em;
  line-height: 0.9;
}

/* ---------- nav ---------- */

.nav-wrap {
  position: fixed; top: 16px; left: 0; right: 0; z-index: 100;
  display: flex; justify-content: center; padding: 0 16px; pointer-events: none;
}
.nav-pill {
  pointer-events: auto; position: relative;
  display: flex; align-items: center; gap: var(--sp-5);
  padding: 10px 12px 10px 22px; border-radius: var(--r-pill);
  background: rgba(11,13,19,0.72);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--hairline);
  box-shadow: 0 8px 30px rgba(0,0,0,0.4);
}
.nav-logo {
  font-weight: 800; font-size: 1.125rem; letter-spacing: 0.04em; white-space: nowrap;
}
.logo-up { color: var(--accent); }
.nav-links { display: flex; align-items: center; gap: 2px; }
.nav-link {
  font-weight: 600; font-size: var(--fs-sm); color: var(--ink-mute);
  padding: 8px 14px; border-radius: var(--r-pill);
  transition: color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}
.nav-link:hover { color: var(--ink); }
.nav-link.active {
  color: var(--ink); background: rgba(255,122,24,0.12);
  box-shadow: inset 0 0 0 1px rgba(255,122,24,0.35);
}
.nav-burger {
  display: none; flex-direction: column; justify-content: center; gap: 5px;
  width: 42px; height: 42px; border-radius: var(--r-pill);
  background: transparent; border: 1px solid var(--hairline-strong); cursor: pointer;
  align-items: center;
}
.nav-burger span {
  display: block; width: 16px; height: 2px; background: var(--ink);
  border-radius: 2px; transition: transform var(--t-fast) var(--ease), opacity var(--t-fast) var(--ease);
}
@media (max-width: 720px) {
  .nav-links, .nav-cta { display: none; }
  .nav-burger { display: flex; }
  .nav-pill.nav-open .nav-links {
    display: flex; flex-direction: column; align-items: stretch; gap: 4px;
    position: absolute; top: calc(100% + 10px); left: 0; right: 0;
    background: var(--surface); border: 1px solid var(--hairline);
    border-radius: var(--r-lg); padding: 12px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.55);
  }
  .nav-pill.nav-open .nav-links .nav-link { padding: 12px 16px; }
  .nav-pill.nav-open .nav-burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-pill.nav-open .nav-burger span:nth-child(2) { opacity: 0; }
  .nav-pill.nav-open .nav-burger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
}

/* ---------- buttons ---------- */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-family: var(--font-ui); font-weight: 800; font-size: var(--fs-sm);
  letter-spacing: 0.02em; padding: 13px 26px; border-radius: var(--r-pill);
  border: 1px solid transparent; cursor: pointer;
  transition: transform var(--t-fast) var(--ease), box-shadow var(--t-med) var(--ease),
    background var(--t-fast) var(--ease), color var(--t-fast) var(--ease),
    border-color var(--t-fast) var(--ease);
  user-select: none; white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(180deg, var(--accent-hot), var(--accent));
  color: #140a02; box-shadow: var(--glow-accent-soft);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--glow-accent); }
.btn-primary:active { transform: translateY(0) scale(0.98); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--hairline-strong); }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent-hot); box-shadow: var(--glow-accent-soft); }
.btn[disabled] { opacity: 0.45; pointer-events: none; }
.btn-sm { padding: 9px 18px; font-size: var(--fs-micro); }

/* ---------- cards ---------- */

.card {
  position: relative;
  background: linear-gradient(180deg, var(--surface-2), var(--surface));
  border: 1px solid var(--hairline); border-radius: var(--r-lg);
  padding: var(--sp-6); box-shadow: var(--shadow-card);
  transition: transform var(--t-med) var(--ease), border-color var(--t-med) var(--ease),
    box-shadow var(--t-med) var(--ease);
  transform-style: preserve-3d; will-change: transform;
}
.card:hover { border-color: var(--hairline-strong); }

/* ---------- sections ---------- */

.section {
  position: relative; max-width: 1200px; margin: 0 auto;
  padding: clamp(88px, 11vw, 150px) 24px;
}
.section-wide { max-width: 1400px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: var(--fs-micro); font-weight: 600; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--ink-mute); margin-bottom: var(--sp-4);
}
.eyebrow::before { content: "//"; color: var(--accent); font-weight: 800; letter-spacing: 0; }

/* ---------- BOM table ---------- */

.table-scroll { overflow-x: auto; border: 1px solid var(--hairline); border-radius: var(--r-md); }
.bom-table { width: 100%; border-collapse: collapse; font-size: var(--fs-sm); min-width: 560px; }
.bom-table th {
  text-align: left; font-size: var(--fs-micro); font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--ink-mute);
  padding: 12px 16px; border-bottom: 1px solid var(--hairline-strong);
  background: rgba(16,19,27,0.6);
}
.bom-table td { padding: 12px 16px; border-bottom: 1px solid var(--hairline); color: var(--ink-dim); }
.bom-table td.bom-part { color: var(--ink); font-weight: 600; }
.bom-cat {
  font-size: 0.75rem; padding: 2px 10px; border-radius: var(--r-pill);
  border: 1px solid var(--hairline-strong); color: var(--ink-mute); white-space: nowrap;
}
.bom-total td {
  border-bottom: none; border-top: 2px solid var(--hairline-strong);
  color: var(--ink); font-weight: 800;
}
.bom-total td.bom-price { color: var(--accent-hot); }

/* kit model (addendum 13) */
.kit-strip {
  display: flex; align-items: center; justify-content: space-between; gap: var(--sp-4);
  padding: 14px 18px; margin-bottom: var(--sp-4);
  border: 1px dashed var(--hairline-strong); border-radius: var(--r-md);
  background: rgba(255,122,24,0.05);
}
@media (max-width: 640px) { .kit-strip { flex-direction: column; align-items: flex-start; } }
.bom-link {
  color: var(--ink-dim); border-bottom: 1px dashed var(--hairline-strong);
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}
.bom-link:hover { color: var(--accent-hot); border-color: var(--accent); }

/* ---------- theater stage cards ---------- */

.stage-card {
  display: flex; align-items: center; gap: 14px; padding: 16px 20px;
  border-radius: var(--r-md); border: 1px solid var(--hairline);
  background: var(--surface); color: var(--ink-mute); opacity: 0.55;
  transition: all var(--t-med) var(--ease);
}
.stage-card .stage-icon {
  flex: none; width: 34px; height: 34px; border-radius: 50%;
  border: 1px solid var(--hairline-strong); display: flex;
  align-items: center; justify-content: center; color: var(--ink-mute);
}
.stage-card .stage-icon svg { width: 16px; height: 16px; }
.stage-card.is-active {
  opacity: 1; color: var(--ink); border-color: var(--accent);
  box-shadow: var(--glow-accent-soft); transform: translateX(6px);
}
.stage-card.is-active .stage-icon {
  border-color: var(--accent); color: var(--accent);
  animation: stagePulse 1.2s var(--ease) infinite;
}
@keyframes stagePulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.12); }
}
.stage-card.is-done {
  opacity: 0.9; color: var(--ink-dim);
  border-color: rgba(53,194,111,0.4); transform: none;
}
.stage-card.is-done .stage-icon { border-color: rgba(53,194,111,0.5); color: var(--good); animation: none; }
.stage-status { margin-left: auto; font-size: var(--fs-micro); color: var(--ink-faint); text-align: right; }

/* ---------- stat chips ---------- */

.stat-chip {
  display: inline-flex; flex-direction: column; gap: 4px;
  padding: 14px 20px; border-radius: var(--r-md);
  background: var(--surface); border: 1px solid var(--hairline); min-width: 120px;
}
.stat-label {
  font-size: var(--fs-micro); letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink-mute); font-weight: 600;
}
.stat-value { font-weight: 800; font-size: 1.25rem; color: var(--ink); }
.chip-green { border-color: rgba(53,194,111,0.45); }
.chip-green .stat-value { color: var(--good); }
.chip-yellow { border-color: rgba(245,197,66,0.45); }
.chip-yellow .stat-value { color: var(--warn); }
.chip-red { border-color: rgba(255,77,77,0.45); }
.chip-red .stat-value { color: var(--bad); }
.gear-row { display: flex; gap: 4px; }
.gear-row svg { width: 18px; height: 18px; }

/* ---------- misc shared ---------- */

.banner-warn {
  background: rgba(245,197,66,0.1); border: 1px solid rgba(245,197,66,0.4);
  color: var(--warn); border-radius: var(--r-md); padding: 14px 20px;
  font-weight: 600; font-size: var(--fs-sm);
}
.toast {
  position: fixed; bottom: 28px; left: 50%; z-index: 200;
  transform: translate(-50%, 80px); opacity: 0;
  background: var(--surface-2); color: var(--ink);
  border: 1px solid rgba(255,122,24,0.45); border-radius: var(--r-pill);
  padding: 12px 24px; font-weight: 600; font-size: var(--fs-sm);
  box-shadow: var(--glow-accent-soft), 0 12px 40px rgba(0,0,0,0.5);
  transition: transform var(--t-med) var(--ease), opacity var(--t-med) var(--ease);
  pointer-events: none; max-width: min(90vw, 480px); text-align: center;
}
.toast.show { transform: translate(-50%, 0); opacity: 1; }
.reveal {
  opacity: 0; transform: translateY(24px);
  transition: opacity var(--t-slow) var(--ease), transform var(--t-slow) var(--ease);
}
.reveal.in { opacity: 1; transform: none; }
.chip-suggest {
  display: inline-flex; align-items: center; border-radius: var(--r-pill);
  padding: 9px 18px; border: 1px solid var(--hairline-strong);
  background: transparent; color: var(--ink-dim);
  font-size: var(--fs-sm); font-weight: 600; cursor: pointer;
  transition: all var(--t-fast) var(--ease);
}
.chip-suggest:hover { border-color: var(--accent); color: var(--accent-hot); }
.legal-page { max-width: 760px; margin: 0 auto; padding: 160px 24px 96px; }
.legal-page h2 { font-weight: 800; font-size: 1.35rem; margin: var(--sp-7) 0 var(--sp-3); }
.legal-page p, .legal-page li { color: var(--ink-dim); margin-bottom: var(--sp-3); }
.legal-page ul { padding-left: 22px; }

/* ---------- footer ---------- */

.site-footer { border-top: 1px solid var(--hairline); margin-top: var(--sp-9); background: rgba(7,8,12,0.6); }
.footer-inner {
  max-width: 1200px; margin: 0 auto; padding: var(--sp-8) 24px var(--sp-6);
  display: flex; flex-wrap: wrap; gap: var(--sp-7); justify-content: space-between;
}
.footer-tag { color: var(--ink-mute); font-size: var(--fs-sm); margin-top: var(--sp-3); }
.footer-cols { display: flex; gap: var(--sp-8); flex-wrap: wrap; }
.footer-col { display: flex; flex-direction: column; gap: 10px; }
.footer-col h4 {
  font-size: var(--fs-micro); font-weight: 600; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--ink-faint); margin-bottom: 4px;
}
.footer-col a { color: var(--ink-mute); font-size: var(--fs-sm); transition: color var(--t-fast) var(--ease); }
.footer-col a:hover { color: var(--accent-hot); }
.footer-base {
  max-width: 1200px; margin: 0 auto; padding: var(--sp-5) 24px var(--sp-6);
  border-top: 1px solid var(--hairline);
  display: flex; flex-wrap: wrap; gap: var(--sp-3) var(--sp-6);
  justify-content: space-between;
}
.footer-base p { font-size: var(--fs-micro); color: var(--ink-faint); }
.footer-base a { color: var(--ink-mute); border-bottom: 1px dashed var(--hairline-strong); }
.footer-base a:hover { color: var(--accent-hot); }

/* ---------- reduced motion (keep last) ---------- */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}