/* ApexAI brand layer — "Obsidian Signal" (from the ApexAI brand guide).
   Loaded after the base stylesheet on every page; overrides tokens and adds motion. */
:root {
  --ax-bg: #0B0D10;
  --ax-bg-alt: #0E1114;
  --ax-surface: #12161B;
  --ax-surface-2: #1A1F25;
  --ax-border: #232A32;
  --ax-border-strong: #333C46;
  --ax-hairline: #1B2128;
  --ax-text: #E8ECEF;
  --ax-text-muted: #A9B3BD;
  --ax-text-dim: #8B96A1;
  --ax-accent: #FFB224;
  --ax-accent-hover: #FFC453;
  --ax-accent-press: #E89C0C;
  --ax-accent-text: #FFC453;
  --ax-on-accent: #0B0D10;
  --ax-info: #6CB6FF;
  --ax-success: #4CC38A;
  --ax-warning: #FFB224;
  --ax-danger: #FF6B5E;
  --ax-focus: #FFC453;
  --ax-glow: rgba(255, 178, 36, 0.14);
  --ax-font-display: "Space Grotesk", "Bricolage Grotesque", ui-sans-serif, system-ui, sans-serif;
  --ax-font-body: "Inter", "Plus Jakarta Sans", ui-sans-serif, system-ui, sans-serif;
  --ax-font-mono: "JetBrains Mono", "DM Mono", ui-monospace, Consolas, monospace;
  --ax-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

html { scroll-behavior: smooth; }
body { background: var(--ax-bg); }
::selection { background: var(--ax-accent); color: var(--ax-on-accent); }

h1, h2, .ax-h2, .ax-h3 { letter-spacing: -0.03em; }

/* ---------- Buttons ---------- */
.ax-btn { transition: transform .25s var(--ax-ease), background .2s, box-shadow .25s, border-color .2s; }
.ax-btn-primary { background: var(--ax-accent); color: var(--ax-on-accent) !important; font-weight: 600; }
.ax-btn-primary:hover { background: var(--ax-accent-hover); color: var(--ax-on-accent); transform: translateY(-1px); box-shadow: 0 10px 30px -10px rgba(255, 178, 36, .55); }
.ax-btn-primary:active { background: var(--ax-accent-press); transform: translateY(0); }
.ax-btn-secondary:hover { border-color: var(--ax-accent); color: var(--ax-text); }

/* ---------- Header: glass on scroll ---------- */
header:first-of-type, .ax-header, .ax-site-header {
  transition: background .3s, backdrop-filter .3s, border-color .3s;
}
body.ax-scrolled .ax-header, body.ax-scrolled .ax-site-header {
  background: rgba(11, 13, 16, .78) !important;
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
}
.ax-nav-link, .ax-nav-sublink { transition: color .2s; }
.ax-nav-link:hover, .ax-nav-sublink:hover { color: var(--ax-accent-text); }

/* Scroll progress bar */
.ax-progress {
  position: fixed; inset: 0 0 auto 0; height: 2px; z-index: 9999; pointer-events: none;
  background: linear-gradient(90deg, var(--ax-accent), var(--ax-accent-hover));
  transform-origin: 0 50%; transform: scaleX(0);
  box-shadow: 0 0 12px rgba(255, 178, 36, .6);
}

/* ---------- Hero & page header atmosphere ---------- */
.ax-hero, .ax-page-header { position: relative; isolation: isolate; overflow: hidden; }
.ax-hero::before, .ax-page-header::before {
  content: ""; position: absolute; inset: -20% -10% auto -10%; height: 140%; z-index: -1; pointer-events: none;
  background:
    radial-gradient(48% 55% at 78% 30%, rgba(255, 178, 36, .13), transparent 70%),
    radial-gradient(35% 40% at 10% 0%, rgba(108, 182, 255, .06), transparent 70%);
}
.ax-hero::after, .ax-page-header::after {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    linear-gradient(rgba(232, 236, 239, .035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(232, 236, 239, .035) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(70% 80% at 60% 30%, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(70% 80% at 60% 30%, #000 30%, transparent 80%);
}
.ax-eyebrow { color: var(--ax-accent-text); }
.ax-eyebrow::before {
  content: ""; display: inline-block; width: 6px; height: 6px; margin-right: 10px; vertical-align: middle;
  background: var(--ax-accent); box-shadow: 0 0 10px var(--ax-accent); animation: ax-pulse 2.4s ease-in-out infinite;
}
@keyframes ax-pulse { 50% { opacity: .35; } }

/* ---------- Cards ---------- */
.ax-card, .ax-trace, .ax-stat {
  transition: transform .35s var(--ax-ease), border-color .25s, box-shadow .35s, background .25s;
}
.ax-card { background: linear-gradient(180deg, var(--ax-surface), var(--ax-bg-alt)); }
.ax-card:hover, .ax-card-link:hover {
  transform: translateY(-3px);
  border-color: rgba(255, 178, 36, .45);
  box-shadow: 0 18px 40px -24px rgba(255, 178, 36, .35), 0 0 0 1px rgba(255, 178, 36, .08) inset;
}
.ax-trace { box-shadow: 0 30px 80px -40px rgba(255, 178, 36, .35); border-color: var(--ax-border-strong); }
.ax-meter-fill { background: linear-gradient(90deg, var(--ax-accent-press), var(--ax-accent)) !important; }
.ax-step-no, .ax-tier-no { color: var(--ax-accent-text); }
.ax-stat-value { color: var(--ax-accent); }
.ax-text-link { color: var(--ax-accent-text); text-underline-offset: 4px; }

/* CTA band */
.ax-cta { position: relative; overflow: hidden; }
.ax-cta::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(60% 120% at 50% 120%, rgba(255, 178, 36, .16), transparent 70%);
}

/* ---------- Reveal on scroll ---------- */
.ax-reveal { opacity: 0; transform: translateY(18px); transition: opacity .8s var(--ax-ease), transform .8s var(--ax-ease); }
.ax-reveal.ax-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .ax-reveal { opacity: 1; transform: none; }
  .ax-eyebrow::before { animation: none; }
  html { scroll-behavior: auto; }
}

/* ---------- Sitemap: clean link cards, no raw URLs ---------- */
.ax-sitemap .ax-mono.ax-dim.ax-small { display: none; }
.ax-sitemap { gap: 20px !important; }
.ax-sitemap > section {
  background: var(--ax-surface); border: 1px solid var(--ax-border); border-radius: var(--ax-radius-lg);
  padding: 22px 22px 14px;
}
.ax-sitemap .ax-h3 { font-size: 13px; text-transform: uppercase; letter-spacing: .12em; color: var(--ax-accent-text); font-family: var(--ax-font-mono); margin-bottom: 10px; }
.ax-sitemap ul { list-style: none; padding: 0; margin: 0; }
.ax-sitemap li { margin: 0; border-top: 1px solid var(--ax-hairline); }
.ax-sitemap li:first-child { border-top: 0; }
.ax-sitemap li a {
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  padding: 10px 2px; color: var(--ax-text); text-decoration: none; transition: color .2s, padding .25s var(--ax-ease);
}
.ax-sitemap li a::after { content: "→"; color: var(--ax-text-dim); transition: transform .25s var(--ax-ease), color .2s; }
.ax-sitemap li a:hover { color: var(--ax-accent-text); padding-left: 6px; }
.ax-sitemap li a:hover::after { color: var(--ax-accent); transform: translateX(3px); }

/* Focus */
:focus-visible { outline: 2px solid var(--ax-focus) !important; outline-offset: 3px; }

/* Brand typography: Space Grotesk display, Inter body, JetBrains Mono data */
body { font-family: var(--ax-font-body); }
h1, h2, h3, h4, .ax-h2, .ax-h3, .ax-h4, .ax-wordmark, .ax-stat-value { font-family: var(--ax-font-display); }
code, .ax-mono, .ax-eyebrow { font-family: var(--ax-font-mono); }

/* ---- Visual modules ---- */
.ax-viz { position: relative; }
.ax-viz-lead { max-width: 62ch; margin-bottom: 2rem; }
.ax-viz-note { color: var(--ax-text-muted, #8A939C); margin-top: 1rem; }
.ax-illus { margin: 0 0 2.5rem; border-radius: 16px; overflow: hidden; border: 1px solid rgba(255,178,36,.18); box-shadow: 0 30px 80px -40px rgba(255,178,36,.35); }
.ax-illus img { display: block; width: 100%; height: auto; }
.ax-illus figcaption { padding: .8rem 1.1rem; font-size: .9rem; color: #A9B2BA; background: #12161B; border-top: 1px solid rgba(255,255,255,.06); }
.ax-sim { display: grid; grid-template-columns: 1.1fr 1fr; gap: 1.5rem; }
@media (max-width: 860px) { .ax-sim { grid-template-columns: 1fr; } }
.ax-sim-funnel { display: flex; flex-direction: column; gap: .7rem; justify-content: center; }
.ax-sim-stage { width: var(--w); margin: 0 auto; display: flex; align-items: baseline; gap: .9rem; padding: 1rem 1.2rem; border-radius: 12px;
  background: linear-gradient(90deg, rgba(255,178,36,.16), rgba(255,178,36,.04)); border: 1px solid rgba(255,178,36,.25); }
.ax-sim-stage:last-child { background: linear-gradient(90deg, rgba(255,178,36,.35), rgba(255,178,36,.12)); }
.ax-sim-num { font-family: "Space Grotesk", sans-serif; font-size: clamp(1.4rem, 2.6vw, 2rem); font-weight: 700; color: #FFB224; font-variant-numeric: tabular-nums; }
.ax-sim-label { color: #C9D1D9; font-size: .95rem; }
.ax-sim-term { background: #0E1115; border: 1px solid rgba(255,255,255,.08); border-radius: 12px; overflow: hidden; min-height: 300px; }
.ax-sim-term-head { display: flex; align-items: center; gap: .4rem; padding: .7rem 1rem; border-bottom: 1px solid rgba(255,255,255,.06); color: #8A939C; font-size: .8rem; }
.ax-sim-term-head .ax-mono { margin-left: .6rem; }
.ax-dot { width: 10px; height: 10px; border-radius: 50%; background: #2A3037; }
.ax-dot:first-child { background: #FFB224; }
.ax-sim-log { list-style: none; margin: 0; padding: .8rem 1rem; font-size: .82rem; line-height: 1.9; }
.ax-sim-log li { animation: axLogIn .4s ease both; color: #C9D1D9; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.ax-log-t { color: #5C6670; }
.ax-log-score { color: #FFB224 !important; } .ax-log-link { color: #7CC4FF !important; } .ax-log-act { color: #FF8A65 !important; } .ax-log-ok { color: #5FD38D !important; }
@keyframes axLogIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: none; } }
.ax-speed { display: grid; gap: 1rem; max-width: 880px; }
.ax-speed-row { display: grid; grid-template-columns: minmax(140px, 260px) 1fr 80px; gap: 1rem; align-items: center; }
.ax-speed-label { color: #C9D1D9; font-size: .95rem; }
.ax-speed-track { height: 14px; border-radius: 99px; background: #161B21; overflow: hidden; }
.ax-speed-bar { display: block; height: 100%; width: 0; border-radius: inherit; background: linear-gradient(90deg, #FF6B4A, #FF9E5A); transition: width 1.4s cubic-bezier(.2,.8,.2,1); }
.ax-speed-us .ax-speed-bar { background: linear-gradient(90deg, #FFB224, #FFD27A); box-shadow: 0 0 18px rgba(255,178,36,.6); }
.ax-speed.ax-go .ax-speed-bar { width: var(--v); }
.ax-speed-val { color: #E8ECEF; text-align: right; }
@media (max-width: 640px) { .ax-speed-row { grid-template-columns: 1fr 70px; } .ax-speed-label { grid-column: 1 / -1; } }
.ax-loopviz { max-width: 520px; margin: 0 auto 2rem; }
.ax-loopviz svg { width: 100%; height: auto; overflow: visible; }
.ax-loop-ring { fill: none; stroke: rgba(255,255,255,.08); stroke-width: 2; }
.ax-loop-flow { fill: none; stroke: #FFB224; stroke-width: 2; stroke-dasharray: 60 882; animation: axFlow 6s linear infinite; filter: drop-shadow(0 0 6px rgba(255,178,36,.8)); }
@keyframes axFlow { to { stroke-dashoffset: -942; } }
.ax-loop-core { fill: rgba(255,178,36,.1); stroke: #FFB224; stroke-width: 1.5; }
.ax-loop-core-t { fill: #FFB224; font: 700 15px "Space Grotesk", sans-serif; }
.ax-loop-node circle { fill: #12161B; stroke: #FFB224; stroke-width: 2; }
.ax-loop-human circle { fill: #FFB224; }
.ax-loop-node text { fill: #C9D1D9; font: 500 12px Inter, sans-serif; }
.ax-loop-node { animation: axPulse 6s ease-in-out infinite; animation-delay: calc(var(--i) * .857s); }
@keyframes axPulse { 0%, 100% { opacity: .75; } 8% { opacity: 1; } }
.ax-card-accent { border-color: rgba(255,178,36,.45) !important; box-shadow: 0 0 0 1px rgba(255,178,36,.15), 0 20px 50px -30px rgba(255,178,36,.5); }
.ax-inv { display: flex; flex-wrap: wrap; gap: 2rem; justify-content: space-between; align-items: center; border-color: rgba(255,178,36,.35); }
.ax-inv-points { margin: 0; padding: 0; list-style: none; display: grid; gap: .6rem; }
.ax-inv-points li::before { content: "▲"; color: #FFB224; margin-right: .6rem; font-size: .7rem; }
.ax-inv-cta { display: flex; flex-direction: column; gap: .8rem; align-items: flex-start; }
@media (prefers-reduced-motion: reduce) { .ax-loop-flow, .ax-loop-node, .ax-sim-log li { animation: none; } .ax-speed-bar { transition: none; } }
.ax-loopviz { width: 100%; }
.ax-loopviz svg { display: block; width: 100% !important; height: auto !important; max-width: 520px; margin: 0 auto; }
.ax-speed { margin-top: 1.5rem; }
.ax-ai { display: grid; grid-template-columns: 1fr 1.2fr; gap: 1.5rem; align-items: start; }
@media (max-width: 900px) { .ax-ai { grid-template-columns: 1fr; } }
.ax-ai-form { display: flex; flex-direction: column; gap: .9rem; }
.ax-ai-form textarea { width: 100%; resize: vertical; background: #0E1115; color: #E8ECEF; border: 1px solid rgba(255,255,255,.12); border-radius: 12px; padding: 1rem; font: inherit; line-height: 1.5; }
.ax-ai-form textarea:focus { outline: none; border-color: #FFB224; box-shadow: 0 0 0 3px rgba(255,178,36,.2); }
.ax-ai-samples { display: flex; flex-wrap: wrap; gap: .5rem; }
.ax-ai-chip { background: rgba(255,178,36,.08); color: #FFD27A; border: 1px solid rgba(255,178,36,.3); border-radius: 99px; padding: .35rem .8rem; font-size: .82rem; cursor: pointer; }
.ax-ai-chip:hover { background: rgba(255,178,36,.18); }
.ax-ai-row { display: flex; flex-wrap: wrap; gap: .7rem; }
.ax-ai-up { cursor: pointer; }
.ax-ai-preview { display: flex; align-items: center; gap: 1rem; }
.ax-ai-preview img { max-height: 90px; border-radius: 8px; border: 1px solid rgba(255,255,255,.12); }
.ax-ai-remove { background: none; border: 0; color: #A9B2BA; text-decoration: underline; cursor: pointer; }
.ax-ai-out { background: #0E1115; border: 1px solid rgba(255,178,36,.25); border-radius: 12px; overflow: hidden; min-height: 320px; }
.ax-ai-body { padding: 1rem 1.3rem; max-height: 560px; overflow: auto; color: #C9D1D9; font-size: .95rem; line-height: 1.6; }
.ax-ai-body h4 { color: #FFB224; margin: 1.1rem 0 .4rem; font-family: "Space Grotesk", sans-serif; }
.ax-ai-body ul { padding-left: 1.2rem; margin: .4rem 0; }
.ax-ai-body code { background: #1A1F26; padding: .1rem .35rem; border-radius: 4px; font-size: .85em; }
.ax-ai-body strong { color: #E8ECEF; }
.ax-ai-note { border-left: 3px solid #FFB224; padding-left: .8rem; color: #A9B2BA; }
.ax-ai-empty { color: #5C6670; }
.ax-ai-err { color: #FF8A65; }
.ax-ai-wait span { display: inline-block; width: 8px; height: 8px; margin-right: 6px; border-radius: 50%; background: #FFB224; animation: axDots 1s infinite ease-in-out; }
.ax-ai-wait span:nth-child(2) { animation-delay: .15s; } .ax-ai-wait span:nth-child(3) { animation-delay: .3s; }
@keyframes axDots { 0%, 100% { opacity: .2; } 50% { opacity: 1; } }
/* Mobile polish: alert explainer, loop diagram, tables */
.ax-ai-preview[hidden] { display: none !important; }
.ax-ai, .ax-ai > * { min-width: 0; }
@media (max-width: 640px) {
  .ax-ai { gap: 1rem; }
  .ax-ai-form textarea { font-size: 16px; min-height: 140px; padding: .85rem; }
  .ax-ai-samples { flex-wrap: nowrap; overflow-x: auto; padding-bottom: .3rem; scrollbar-width: none; -webkit-overflow-scrolling: touch; }
  .ax-ai-samples::-webkit-scrollbar { display: none; }
  .ax-ai-chip { white-space: nowrap; flex: 0 0 auto; padding: .5rem .85rem; }
  .ax-ai-row { display: grid; grid-template-columns: 1fr 1fr; gap: .6rem; }
  .ax-ai-row .ax-btn { width: 100%; justify-content: center; text-align: center; padding-left: .6rem; padding-right: .6rem; font-size: .92rem; }
  .ax-ai-out { min-height: 0; scroll-margin-top: 84px; }
  .ax-ai-body { padding: .9rem 1rem; max-height: 70vh; font-size: .93rem; overflow-wrap: anywhere; }
  .ax-ai-body pre { white-space: pre-wrap; word-break: break-all; }
  .ax-ai-empty { margin: .4rem 0; }
  .ax-loopviz { padding: 0; }
  main table.ax-table { display: block; overflow-x: auto; -webkit-overflow-scrolling: touch; white-space: nowrap; }
}