/* ---------------------------------------------------------------------------
 * styles.css — shared shell styling for the Heavy Metal Assets design showcase.
 * Brand: black chassis, safety gold, stencil (Oswald) display type.
 * Mirrors the tokens in app/src/app/globals.css.
 * ------------------------------------------------------------------------- */
:root {
  --brand-gold: #D7B14A;
  --brand-gold-light: #E5C878;
  --brand-gold-dark: #B89430;
  --bg-page: #F9FAFB;
  --bg-surface: #FFFFFF;
  --bg-dark: #101010;
  --bg-hero: #000000;
  --fg-1: #111827;
  --fg-2: #374151;
  --fg-3: #6B7280;
  --fg-4: #9CA3AF;
  --fg-on-dark: #EAEAEA;
  --fg-on-gold: #101010;
  --border-1: #E5E7EB;
  --border-2: #D1D5DB;

  --badge-default-bg: #F3F4F6; --badge-default-fg: #374151;
  --badge-success-bg: #DCFCE7; --badge-success-fg: #15803D;
  --badge-warning-bg: #FEF3C7; --badge-warning-fg: #B45309;
  --badge-danger-bg:  #FEE2E2; --badge-danger-fg:  #B91C1C;
  --badge-info-bg:    #DBEAFE; --badge-info-fg:    #1D4ED8;

  --radius: 8px;
  --shadow-sm: 0 1px 2px 0 rgba(0,0,0,.05);
  --shadow-md: 0 4px 12px -2px rgba(0,0,0,.12);
  --shadow-lg: 0 20px 40px -12px rgba(0,0,0,.35);

  --font-display: "Oswald", system-ui, sans-serif;
  --font-body: "Geist", system-ui, -apple-system, sans-serif;
  --font-mono: "Geist Mono", ui-monospace, "SF Mono", monospace;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg-page);
  color: var(--fg-1);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

/* ----- Top chassis bar -------------------------------------------------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 14px 20px;
  background: var(--bg-dark);
  color: var(--fg-on-dark);
  border-bottom: 3px solid var(--brand-gold);
}
.topbar .brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 18px;
  color: #fff;
}
.topbar .brand img { height: 26px; width: auto; display: block; }
.topbar .brand .mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 30px;
  padding: 0 10px;
  background: var(--brand-gold);
  color: var(--fg-on-gold);
  border-radius: 6px;
  font-size: 15px;
}
.topbar .tag {
  font-family: var(--font-body);
  font-weight: 500;
  text-transform: none;
  letter-spacing: 0;
  font-size: 13px;
  color: var(--fg-4);
}
.topbar .spacer { flex: 1; }
.topbar .backlink {
  font-size: 14px;
  font-weight: 600;
  color: var(--brand-gold);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.topbar .backlink:hover { color: var(--brand-gold-light); }

/* ----- Page container --------------------------------------------------- */
.wrap { max-width: 1200px; margin: 0 auto; padding: 32px 20px 64px; }

.page-title {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 30px;
  margin: 0 0 6px;
}
.page-sub { color: var(--fg-3); margin: 0 0 28px; max-width: 62ch; }

/* ----- Gallery grid ----------------------------------------------------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-1);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow .18s ease, transform .18s ease, border-color .18s ease;
}
.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
  border-color: var(--border-2);
}

/* Preview: a scaled-down live mockup framed like a phone, or a placeholder. */
.card .preview {
  position: relative;
  height: 300px;
  background:
    radial-gradient(120% 100% at 50% 0%, #1b1b1b 0%, var(--bg-dark) 60%, #050505 100%);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  overflow: hidden;
  padding-top: 22px;
}
.card .preview .phone {
  width: 260px;
  height: 563px;              /* 260 * 19.5/9 ≈ iPhone aspect */
  border-radius: 34px;
  background: #000;
  padding: 8px;
  box-shadow: var(--shadow-lg);
  transform: scale(0.62);
  transform-origin: top center;
}
.card .preview iframe {
  width: 100%;
  height: 100%;
  border: 0;
  border-radius: 26px;
  background: #fff;
  pointer-events: none;       /* preview is not interactive; click the card */
}
.card .preview .placeholder {
  align-self: center;
  text-align: center;
  color: var(--fg-4);
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 14px;
  padding: 0 24px;
}
.card .preview .placeholder .big { font-size: 40px; display: block; margin-bottom: 8px; }

.card .body { padding: 16px 18px 18px; display: flex; flex-direction: column; gap: 8px; flex: 1; }
.card .body h3 {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-size: 18px;
  margin: 0;
}
.card .body p { color: var(--fg-3); font-size: 14px; margin: 0; }
.card .body .note {
  margin-top: 4px;
  font-size: 12.5px;
  color: var(--badge-warning-fg);
  background: var(--badge-warning-bg);
  border-radius: 6px;
  padding: 6px 8px;
}
.card .body .row { margin-top: auto; display: flex; align-items: center; gap: 8px; padding-top: 6px; }
.card .body .open {
  margin-left: auto;
  font-weight: 600;
  font-size: 14px;
  color: var(--brand-gold-dark);
}
.card:hover .body .open { color: var(--brand-gold-dark); }

/* ----- Status badges ---------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
  padding: 5px 10px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.badge.ready    { background: var(--badge-success-bg); color: var(--badge-success-fg); }
.badge.proposed { background: var(--badge-info-bg);    color: var(--badge-info-fg); }
.badge.blocked  { background: var(--badge-danger-bg);  color: var(--badge-danger-fg); }
.badge.nomock   { background: var(--badge-default-bg); color: var(--badge-default-fg); }

/* ----- Detail page (screen.html) --------------------------------------- *
 * Single scroll-down column: a concise header, prev/next, then every real
 * app screen shown full-size and stacked, then the spec below. No phone-in-
 * phone — you scroll the page to see each screen clearly. */
.detail {
  max-width: 860px;
  margin: 0 auto;
}

.detail-head { margin-bottom: 18px; }
.detail-head-row { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.detail-head-row h1 {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 28px;
  margin: 0;
}
.detail-head .subtitle { color: var(--fg-3); margin: 10px 0 0; max-width: 68ch; }
.detail-head .detail-note {
  margin-top: 12px;
  font-size: 13px;
  color: var(--badge-warning-fg);
  background: var(--badge-warning-bg);
  border-radius: 6px;
  padding: 8px 12px;
  max-width: 68ch;
}

/* Full-width embed of the mockup's screen gallery */
.screens-embed {
  margin: 24px 0 8px;
  background:
    radial-gradient(120% 60% at 50% 0%, #1b1b1b 0%, var(--bg-dark) 60%, #050505 100%);
  border: 1px solid var(--border-dark-solid, #1F2937);
  border-radius: 16px;
  overflow: hidden;
}
.screens-frame {
  display: block;
  width: 100%;
  height: 4200px;              /* replaced with real content height on load */
  border: 0;
  background: transparent;
}
.screens-empty {
  margin: 24px 0 8px;
  min-height: 260px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  text-align: center;
  color: var(--fg-4);
  background: var(--bg-surface);
  border: 1px dashed var(--border-2);
  border-radius: 16px;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 14px;
  padding: 40px 24px;
}
.screens-empty .big { font-size: 48px; }

.detail .nav {
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: center;
}
.nav-count {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--fg-4);
  min-width: 56px;
  text-align: center;
}
.btn {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14px;
  padding: 10px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border-2);
  background: var(--bg-surface);
  color: var(--fg-2);
  cursor: pointer;
  min-height: 44px;
}
.btn:hover { border-color: var(--fg-4); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn.gold {
  background: var(--brand-gold);
  border-color: var(--brand-gold-dark);
  color: var(--fg-on-gold);
}
.btn.gold:hover { background: var(--brand-gold-light); }
.open-tab {
  font-size: 13px;
  color: var(--fg-3);
  text-align: center;
}
.open-tab a { color: var(--brand-gold-dark); font-weight: 600; }

/* ----- Spec section (below the screens) --------------------------------- */
.spec-section { margin-top: 40px; }
.spec-heading {
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 22px;
  margin: 0;
  padding-top: 20px;
  border-top: 1px solid var(--border-1);
}

.prose {
  background: var(--bg-surface);
  border: 1px solid var(--border-1);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 8px 28px 28px;
  margin-top: 22px;
  max-width: 78ch;
}
.prose h1 { font-family: var(--font-display); text-transform: uppercase; letter-spacing: 0.03em; font-size: 24px; }
.prose h2 {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  font-size: 19px;
  margin-top: 30px;
  padding-top: 18px;
  border-top: 1px solid var(--border-1);
}
.prose h3 { font-size: 16px; font-weight: 700; margin-top: 22px; }
.prose h2:first-child, .prose h1:first-child { border-top: 0; margin-top: 14px; padding-top: 0; }
.prose p, .prose li { color: var(--fg-2); }
.prose a { color: var(--brand-gold-dark); font-weight: 500; text-decoration: underline; }
.prose code {
  font-family: var(--font-mono);
  font-size: 13px;
  background: #F3F4F6;
  border: 1px solid var(--border-1);
  border-radius: 4px;
  padding: 1px 5px;
}
.prose pre {
  background: var(--bg-dark);
  color: #E5E7EB;
  padding: 16px;
  border-radius: var(--radius);
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.55;
}
.prose pre code { background: none; border: 0; padding: 0; color: inherit; }
.prose table {
  border-collapse: collapse;
  width: 100%;
  font-size: 14px;
  margin: 14px 0;
  display: block;
  overflow-x: auto;
}
.prose th, .prose td { border: 1px solid var(--border-1); padding: 8px 10px; text-align: left; vertical-align: top; }
.prose th { background: #F9FAFB; font-weight: 600; }
.prose blockquote {
  margin: 14px 0;
  padding: 10px 16px;
  border-left: 4px solid var(--brand-gold);
  background: #FCFBF5;
  color: var(--fg-2);
}
.prose blockquote p { margin: 6px 0; }
.prose img { max-width: 100%; }
.prose hr { border: 0; border-top: 1px solid var(--border-1); margin: 26px 0; }

.spec-empty { color: var(--fg-4); font-style: italic; padding: 20px 0; }

/* ----- Footer ----------------------------------------------------------- */
.foot { color: var(--fg-4); font-size: 13px; margin-top: 40px; }

/* ----- Utility ---------------------------------------------------------- */
.center-note { text-align: center; color: var(--fg-3); padding: 60px 20px; }