/* Tribela Labs — shared stylesheet */
:root {
  --bg:            #06060A;
  --surface:       #0E0E0E;
  --surface-mid:   #141414;
  --surface-high:  #1E1E1E;
  --ember:         #F07820;
  --ember-bright:  #FFD4A0;
  --ember-dim:     rgba(240,120,32,0.28);
  --ember-glow:    rgba(240,120,32,0.07);
  --forge:         #B83020;
  --forge-bright:  #E04030;
  --steel:         #7A9BB0;
  --text:          #F2EEE6;
  --text-dim:      #9A9488;
  --text-muted:    #58524C;
  --border:        rgba(255,255,255,0.055);
  --border-ember:  rgba(255,255,255,0.25);
  --accent:        #F2EEE6;
}

*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior: smooth; overflow-x: hidden; }
body {
  background: #06060A;
  background-attachment: fixed;
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  font-weight: 300;
  overflow-x: hidden;
  line-height: 1.6;
}
a { color: inherit; text-decoration: none; }

/* Scroll torch line */
.scroll-line {
  position: fixed; left: 28px; top: 0;
  width: 1px; height: 100vh;
  background: rgba(255,255,255,0.04);
  z-index: 200; pointer-events: none;
}
.scroll-line-fill {
  position: absolute; top: 0; left: 0;
  width: 100%; height: 0%;
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent), 0 0 16px var(--accent);
  transition: height 0.06s linear;
}

/* Layout */
.container { max-width: 1140px; margin: 0 auto; padding: 0 84px; position: relative; z-index: 1; }
.container-narrow { max-width: 880px; }
section { padding: 112px 0; border-bottom: 1px solid var(--border); position: relative; z-index: 1; }

/* Nav */
.nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 150;
  padding: 20px 44px 20px 84px;
  display: flex; align-items: center; justify-content: space-between;
  background: linear-gradient(to bottom, rgba(6,6,10,0.92), rgba(6,6,10,0));
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.nav-brand { display: flex; align-items: center; gap: 12px; }
.nav-brand-mark { width: 32px; height: 48px; display: block; }
.nav-brand-text {
  font-family: 'DM Sans', sans-serif;
  font-size: 14px; letter-spacing: 0.08em; color: var(--text);
}
.nav-links { display: flex; gap: 28px; align-items: center; flex-wrap: nowrap; }
.nav-links a {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--text-dim); transition: color .2s;
  padding: 6px 0; position: relative; white-space: nowrap;
}
.nav-links a:hover { color: var(--accent); }
.nav-links a.active { color: var(--text); }
.nav-links a.active::after {
  content:''; position: absolute; bottom: -2px; left: 0; right: 0; height: 1px;
  background: var(--accent); box-shadow: 0 0 6px var(--accent);
}
.nav-cta {
  font-family: 'IBM Plex Mono', monospace !important;
  font-size: 10.5px !important;
  letter-spacing: 0.14em !important;
  text-transform: uppercase !important;
  color: #111 !important;
  background: var(--accent) !important;
  border: 1px solid transparent !important;
  border-radius: 3px;
  padding: 8px 16px !important;
  transition: all .2s ease;
  box-shadow: 0 0 12px color-mix(in srgb, var(--accent) 20%, transparent);
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 8px !important;
  text-align: center !important;
}
.nav-cta:hover {
  background: color-mix(in srgb, var(--accent) 70%, #fff);
  box-shadow: 0 0 18px rgba(240,120,32,0.35);
}
.nav-cta::after { content: '→'; font-size: 12px; }

/* Nav accent switcher */
.nav-accent-btn {
  width: 18px; height: 18px; border-radius: 50%;
  background: var(--accent);
  border: 2px solid rgba(255,255,255,0.15);
  cursor: pointer; position: relative; flex-shrink: 0;
  box-shadow: 0 0 8px var(--accent);
  transition: box-shadow .2s, transform .2s;
}
.nav-accent-btn:hover { transform: scale(1.18); box-shadow: 0 0 14px var(--accent); }
.nav-accent-popover {
  position: absolute; top: calc(100% + 14px); right: 0;
  background: #0F0F14; border: 1px solid var(--accent);
  border-radius: 5px; padding: 12px 14px;
  display: none; flex-direction: column; gap: 10px;
  z-index: 500; min-width: 160px;
  box-shadow: 0 8px 28px rgba(0,0,0,0.6);
}
.nav-accent-popover.open { display: flex; }
.nav-accent-popover-label {
  font-family: 'IBM Plex Mono', monospace; font-size: 9.5px;
  letter-spacing: .18em; text-transform: uppercase; color: #58524C;
  padding-bottom: 6px; border-bottom: 1px solid rgba(255,255,255,0.06);
}
.nav-accent-swatches { display: flex; gap: 7px; flex-wrap: wrap; }
.nav-accent-swatch {
  width: 22px; height: 22px; border-radius: 50%;
  border: 2px solid transparent; cursor: pointer;
  transition: transform .15s, border-color .15s;
}
.nav-accent-swatch:hover { transform: scale(1.15); }
.nav-accent-swatch.active { border-color: #fff; }

/* Section label */
.section-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 10.5px; letter-spacing: 0.16em; color: var(--text-dim);
  text-transform: uppercase; margin-bottom: 44px;
  display: flex; align-items: center; gap: 0;
}
.section-label::before {
  content: '// ';
  color: var(--accent); font-family: 'IBM Plex Mono', monospace;
  margin-right: 0;
}

/* Terminal card header bar */
.t-bar {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 9.5px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--text-muted);
  padding: 8px 16px;
  background: color-mix(in srgb, var(--surface-high) 60%, transparent);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
}
.t-bar .t-id { color: var(--accent); }
.t-bar .t-tag {
  font-size: 9px; padding: 2px 7px;
  border: 1px solid var(--border); border-radius: 2px;
  color: var(--text-muted);
}
/* Prompt prefix */
.t-prompt::before { content: '> '; color: var(--accent); font-family: 'IBM Plex Mono', monospace; }

/* Type */
h1, .t-display { font-family: 'DM Sans', sans-serif; letter-spacing: 0; line-height: 1.02; }
h2 { font-family: 'DM Sans', sans-serif; letter-spacing: 0; line-height: 1.08; }
h3 { font-family: 'DM Sans', sans-serif; font-weight: 700; line-height: 1.25; }
.mono { font-family: 'IBM Plex Mono', monospace; }
em.hi { color: var(--accent); font-style: normal; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px; letter-spacing: 0.14em; text-transform: uppercase;
  padding: 14px 22px; border-radius: 3px;
  transition: all .2s ease; cursor: pointer; border: 1px solid transparent;
}
.btn-primary {
  background: var(--accent); color: #111;
  box-shadow: 0 0 24px color-mix(in srgb, var(--accent) 20%, transparent);
}
.btn-primary:hover { background: color-mix(in srgb, var(--accent) 70%, #fff); box-shadow: 0 0 32px rgba(240,120,32,0.35); }
.btn-ghost { border-color: var(--border); color: var(--text-dim); }
.btn-ghost:hover { border-color: color-mix(in srgb, var(--accent) 28%, transparent); color: var(--accent); }
.btn-arrow::after { content: '→'; font-size: 14px; }

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .9s ease, transform .9s ease; }
.reveal.is-in { opacity: 1; transform: translateY(0); }

/* Card hover effect — dark at rest, accent border + glow on hover */
.gborder {
  position: relative;
  background: color-mix(in srgb, var(--surface) 80%, #000);
  border: 1px solid transparent;
  border-radius: 6px;
  overflow: hidden;
  isolation: isolate;
  transition: border-color .3s ease, background .35s ease, box-shadow .3s ease;
}
.gborder:hover {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--surface) 80%, #000);
  box-shadow: 0 0 24px color-mix(in srgb, var(--accent) 16%, transparent),
              0 0 6px  color-mix(in srgb, var(--accent) 30%, transparent);
}
.gborder::before {
  content: '';
  position: absolute; inset: -1px; border-radius: 7px; padding: 1px;
  background: conic-gradient(from var(--gb-angle, 0deg), #FFD4A0 0deg, #F07820 60deg, #B83020 120deg, transparent 180deg, transparent 300deg, #FFD4A0 360deg);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: 0; transition: opacity .35s ease; pointer-events: none; z-index: 1;
}
.gborder:hover::before { opacity: 1; animation: gborderSpin 2.8s linear infinite; }
@property --gb-angle { syntax: '<angle>'; initial-value: 0deg; inherits: false; }
@keyframes gborderSpin { to { --gb-angle: 360deg; } }
@supports not (background: conic-gradient(from 0deg, red, blue)) {
  .gborder { border-color: var(--accent); }
}

/* Footer */
footer {
  padding: 80px 0 60px; position: relative; z-index: 1;
  border-top: 1px solid var(--border);
}
.footer-name {
  font-family: 'DM Sans', sans-serif;
  font-size: 22px; color: #fff; margin-bottom: 18px;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 48px;
}
.footer-col h4 {
  font-family: 'IBM Plex Mono', monospace; font-size: 10.5px;
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 18px; font-weight: 500;
}
.footer-col a {
  display: block; font-size: 13.5px; color: var(--text-dim);
  padding: 5px 0; transition: color .2s;
}
.footer-col a:hover { color: var(--accent); }
.footer-manifesto {
  font-family: 'Syne', sans-serif; font-size: 15px; font-weight: 500;
  line-height: 1.55; color: var(--text-dim); max-width: 320px;
}
.footer-bottom {
  padding-top: 32px; border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center;
  font-family: 'IBM Plex Mono', monospace; font-size: 11px;
  color: var(--text-muted); letter-spacing: 0.08em;
}

/* Utility */
.spacer-lg { height: 64px; }
.wire-note {
  display: inline-block;
  font-family: 'IBM Plex Mono', monospace; font-size: 10px;
  color: var(--text-muted); letter-spacing: .16em; text-transform: uppercase;
  background: rgba(255,255,255,0.02); border: 1px dashed rgba(255,255,255,0.08);
  padding: 4px 9px; border-radius: 3px;
}
.placeholder {
  background: repeating-linear-gradient(135deg, rgba(240,120,32,0.035) 0 10px, transparent 10px 20px), var(--surface);
  border: 1px dashed rgba(240,120,32,0.18); border-radius: 6px;
  color: var(--text-muted); font-family: 'IBM Plex Mono', monospace; font-size: 11px;
  letter-spacing: .12em; text-transform: uppercase;
  display: flex; align-items: center; justify-content: center;
  min-height: 160px; text-align: center; padding: 20px;
}

/* t-bar flush inside cards */
.gborder .t-bar { margin: -1px -1px 20px; border-radius: 5px 5px 0 0; }
.cap-card .t-bar { margin: -30px -30px 22px; }
.cluster-preview .t-bar { margin: -32px -32px 20px; }
.product-card .t-bar { margin: -40px -40px 24px; }
.cluster-item .t-bar { margin: 0; }
.cluster-card .t-bar { margin: -32px -32px 0; border-radius: 5px 5px 0 0; }
.cap-card .t-bar + .cap-abbr { margin-top: 8px; }

/* Ember glow pulse — liquid per-character flicker */
@keyframes charEmber {
  0%   { text-shadow: none; opacity: 1; }
  20%  { text-shadow: 0 0 6px  color-mix(in srgb, var(--accent) 35%, transparent),
                       0 0 14px color-mix(in srgb, var(--accent) 12%, transparent); opacity: 1; }
  32%  { text-shadow: none; opacity: 0.82; }
  60%  { text-shadow: 0 0 10px color-mix(in srgb, var(--accent) 45%, transparent),
                       0 0 26px color-mix(in srgb, var(--accent) 14%, transparent),
                       0 0 50px color-mix(in srgb, var(--accent) 5%,  transparent); opacity: 1; }
  80%  { text-shadow: 0 0 4px  color-mix(in srgb, var(--accent) 18%, transparent); opacity: 0.88; }
  100% { text-shadow: none; opacity: 1; }
}
.ember-char { display: inline; }

@media (max-width: 900px) {
  .container { padding: 0 40px; }
  .nav { padding: 16px 28px; flex-wrap: wrap; }
  .nav-links { gap: 12px; flex-wrap: wrap; justify-content: flex-end; }
  .nav-brand-text { font-size: 12px; }
  .scroll-line { left: 12px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
  h1 { font-size: clamp(28px, 8vw, 40px) !important; }
  h2 { font-size: clamp(22px, 6vw, 32px) !important; }
  .product-right-panel { display: none !important; }
  .papers-list { gap: 24px; }
  .paper-row {
    display: flex;
    flex-direction: column;
    gap: 16px;
  }
  .paper-row > * { width: 100%; }
  .paper-cluster, .paper-type { display: inline-block; margin-right: 12px; }
}
@media (max-width: 560px) {
  .container { padding: 0 24px; }
  .nav { padding: 12px 16px; }
  .nav-links a:not(.nav-cta) { display: none; }
  .nav-brand-text { font-size: 11px; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; text-align: center; }
  .footer-col { text-align: center; }
  .footer-col a { text-align: center; }
  .footer-manifesto { font-size: 18px !important; max-width: 100% !important; text-align: center; }
  .hero h1 { font-size: clamp(28px, 10vw, 40px); }
  .hero-tag { font-size: 14px; }
}

/* Terminal metadata labels */
.spec-label {
  font-family: 'IBM Plex Mono', monospace !important;
  font-size: 9.5px !important; letter-spacing: 0.14em !important;
  text-transform: lowercase !important; color: var(--text-muted) !important;
}
.spec-value {
  font-family: 'IBM Plex Mono', monospace !important;
  font-size: 13px !important; color: var(--accent) !important;
}
.feature-label {
  font-family: 'IBM Plex Mono', monospace !important;
  font-size: 9.5px !important; color: var(--accent) !important;
  letter-spacing: 0.12em !important;
}
.cap-name {
  font-family: 'IBM Plex Mono', monospace !important;
  font-size: 10.5px !important; color: var(--text-muted) !important;
  letter-spacing: 0.06em !important; margin-bottom: 18px !important;
}
.hero-eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px; letter-spacing: 0.14em; color: var(--text-muted);
  text-transform: lowercase;
}

/* ── Global card title font (Syne 600) ── */
.cluster-card-title,
.pub-card-title,
.thread-title,
.paper-title,
.research-item-title,
.product-full,
.feature-text,
.cap-card p strong,
h3 {
  font-family: 'Syne', sans-serif;
  font-weight: 600;
}