/* melten.ai — shared base tokens for all variants */

@import url('https://fonts.googleapis.com/css2?family=Geist:wght@300;400;500;600;700&family=Geist+Mono:wght@400;500;600&family=Source+Serif+4:opsz,wght@8..60,300;8..60,400;8..60,500;8..60,600&display=swap');

:root {
  --ink: oklch(0.96 0.005 80);
  --ink-dim: oklch(0.75 0.005 80);
  --ink-mute: oklch(0.55 0.005 80);
  --ink-faint: oklch(0.38 0.005 80);
  --bg: oklch(0.155 0.005 80);
  --bg-1: oklch(0.185 0.005 80);
  --bg-2: oklch(0.215 0.005 80);
  --line: oklch(0.27 0.005 80);
  --line-soft: oklch(0.225 0.005 80);

  /* per-variant accents are set on the artboard root */
  --accent: oklch(0.85 0.18 145);
  --accent-dim: oklch(0.55 0.13 145);

  --sans: "Geist", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --serif: "Source Serif 4", Georgia, serif;
}

.melten-page {
  font-family: var(--sans);
  background: var(--bg);
  color: var(--ink);
  width: 100%;
  max-width: var(--page-max, 1440px);
  margin: 0 auto;
  font-feature-settings: "ss01", "cv11";
  letter-spacing: -0.005em;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
  position: relative;
}

.melten-page * { box-sizing: border-box; }

.mono { font-family: var(--mono); letter-spacing: 0; }
.dim { color: var(--ink-dim); }
.mute { color: var(--ink-mute); }
.faint { color: var(--ink-faint); }

/* ---- shared atoms ---- */
.kbd-tag {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-mute);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
  padding: 11px 18px;
  border-radius: 4px;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s ease;
  white-space: nowrap;
}
.btn:hover { background: var(--bg-1); border-color: var(--ink-faint); }

.btn-primary {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}
.btn-primary:hover { background: var(--accent); border-color: var(--accent); color: var(--bg); }

.btn-accent {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}
.btn-accent:hover { filter: brightness(1.1); }

.hairline { background: var(--line); height: 1px; }
.hairline-v { background: var(--line); width: 1px; }

.dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); display: inline-block; }
.dot.idle { background: var(--ink-faint); }

/* Nav (shared shape, restyled per variant) */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 56px;
  border-bottom: 1px solid var(--line-soft);
  gap: 24px;
}
.nav-left { display: flex; align-items: center; gap: 32px; min-width: 0; flex-shrink: 1; }
.nav-logo { display: flex; align-items: center; gap: 9px; font-family: var(--mono); font-size: 14px; font-weight: 500; letter-spacing: -0.01em; white-space: nowrap; flex-shrink: 0; }
.nav-logo .glyph { width: 18px; height: 18px; display: inline-block; }
.nav-links { display: flex; gap: 22px; font-family: var(--mono); font-size: 12.5px; color: var(--ink-dim); white-space: nowrap; }
.nav-links a { color: inherit; text-decoration: none; transition: color 0.15s; white-space: nowrap; }
.nav-links a:hover { color: var(--ink); }
.nav-right { display: flex; align-items: center; gap: 10px; font-family: var(--mono); font-size: 12.5px; white-space: nowrap; flex-shrink: 0; }

/* Section frame */
.section { padding: 96px 64px; border-bottom: 1px solid var(--line-soft); }
.section-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 56px; }
.section-eyebrow { font-family: var(--mono); font-size: 11px; letter-spacing: 0.12em; color: var(--ink-mute); text-transform: uppercase; }
.section-title { font-size: 42px; line-height: 1.05; letter-spacing: -0.025em; font-weight: 500; max-width: 720px; }

/* Footer */
.footer {
  padding: 56px 64px 36px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-mute);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
}

/* placeholder block (subtle stripes) */
.placeholder {
  background-image: repeating-linear-gradient(
    135deg,
    var(--bg-1) 0 10px,
    var(--bg-2) 10px 20px
  );
  border: 1px solid var(--line);
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-mute);
  letter-spacing: 0.05em;
}

/* ---- hover states on hero floorplan blocks ---- */
.fp-hover { transition: stroke 0.15s, fill 0.15s; cursor: pointer; }
.fp-hover:hover { stroke: var(--accent); }
.fp-hover-bg { transition: fill 0.15s; }
.fp-hover:hover ~ .fp-hover-bg,
g.fp-group:hover .fp-hover-bg { fill: color-mix(in oklch, var(--accent) 10%, var(--bg-1)); }
g.fp-group:hover rect.fp-hover { stroke: var(--accent); }
g.fp-group { cursor: pointer; }
g.fp-group text { transition: fill 0.15s; }

/* ---- sticky nav ---- */
.nav-sticky {
  position: sticky !important;
  top: 0;
  z-index: 50 !important;
  background: color-mix(in oklch, var(--bg) 88%, transparent);
  backdrop-filter: saturate(160%) blur(12px);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
}

/* ---- smooth scroll ---- */
html { scroll-behavior: smooth; scroll-padding-top: 80px; }

/* ---- subtle dot-grid bg pattern for full-page standalone ---- */
.melten-page.standalone {
  --page-max: 1440px;
}
.melten-page.standalone::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: radial-gradient(circle, var(--line-soft) 1px, transparent 1px);
  background-size: var(--grid-density, 32px) var(--grid-density, 32px);
  opacity: 0.18;
  z-index: 0;
}
.melten-page.standalone > * { position: relative; z-index: 1; }

/* ---- unified nav: click-controlled products dropdown ---- */
.un-products-menu { position: relative; display: inline-flex; align-items: center; }
.un-products-dropdown {
  position: absolute;
  top: 100%;
  left: -20px;
  width: 340px;
  padding-top: 10px;
  z-index: 200;
  display: none;
}
.un-products-dropdown.is-open { display: block; }
.un-products-panel {
  padding: 8px;
  background: var(--bg-1);
  border: 1px solid var(--line);
  border-radius: 4px;
  box-shadow: 0 16px 48px rgba(0,0,0,0.4);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2px;
}
.un-products-panel a {
  display: block;
  padding: 10px 12px;
  text-decoration: none;
  color: var(--ink);
  border-radius: 3px;
  transition: background 0.12s;
}
.un-products-panel a:hover { background: var(--bg-2); }
.un-products-panel a.is-active { background: color-mix(in oklch, var(--accent) 12%, var(--bg-1)); }

/* ---- focus rings ---- */
.btn:focus-visible, .nav-links a:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 3px;
}

/* ---- pulsing dot ---- */
@keyframes dot-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.45; }
}
.dot-pulse { animation: dot-pulse 2.6s ease-in-out infinite; }

/* ---- disable animations when no-anim is set ---- */
.melten-page.no-anim .fp-signal { animation: none !important; }
.melten-page.no-anim .fp-blink { animation: none !important; }

/* ---- light theme override (applied via .melten-page.theme-light) ---- */
.melten-page.theme-light {
  --ink: oklch(0.22 0.005 80);
  --ink-dim: oklch(0.40 0.005 80);
  --ink-mute: oklch(0.55 0.005 80);
  --ink-faint: oklch(0.70 0.005 80);
  --bg: oklch(0.985 0.003 80);
  --bg-1: oklch(0.965 0.003 80);
  --bg-2: oklch(0.94 0.003 80);
  --line: oklch(0.85 0.005 80);
  --line-soft: oklch(0.91 0.005 80);
}
.melten-page.theme-light .btn-primary { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.melten-page.theme-light .btn-primary:hover { background: var(--accent); color: oklch(0.99 0.003 80); border-color: var(--accent); }

/* ---- mobile responsive ---- */
@media (max-width: 1200px) {
  /* Tighten nav between 900 and 1200 so links don't overlap with right-side buttons */
  .melten-page .nav { padding-left: 36px !important; padding-right: 36px !important; }
  .melten-page .nav-left { gap: 22px !important; }
  .melten-page .nav-links { gap: 16px !important; font-size: 12.5px !important; }
  .melten-page .nav-right > .mono { display: none !important; }
}
@media (max-width: 640px) {
  .nav-links { display: none; }
}
@media (max-width: 900px) {
  .nav { padding: 14px 20px !important; flex-wrap: wrap; gap: 12px; }
  .nav-left { gap: 18px; flex-wrap: wrap; }
  .nav-right .btn:not(.btn-primary) { display: none; }
  .section { padding: 56px 20px !important; }
  .footer { padding: 40px 20px 28px !important; flex-direction: column; gap: 28px; align-items: stretch; }
  .melten-page h1, .melten-page h2 { font-size: clamp(36px, 7vw, 60px) !important; line-height: 1.05 !important; }
}
@media (max-width: 1100px) {
  .melten-page [data-tech-grid] { grid-template-columns: repeat(3, 1fr) !important; }
}
@media (max-width: 700px) {
  .melten-page [data-grid] { grid-template-columns: 1fr !important; }
  .melten-page [data-grid-3] { grid-template-columns: 1fr !important; }
  .melten-page [data-hero-grid] { grid-template-columns: 1fr !important; gap: 36px !important; }
  .melten-page [data-marg-grid] { grid-template-columns: 1fr !important; gap: 20px !important; }
  .melten-page [data-tech-grid] { grid-template-columns: repeat(2, 1fr) !important; }
}