/* ==========================================================================
   Theme: Aurora — deep-blue, gradient-forward. Dark by default, light variant.
   Ported from the approved "aurora" mockup. Same variable contract as the
   other themes (--bg/--surface/--ink/--muted/--line/--accent/--accent-ink),
   plus gradient tokens the components below consume. All text pairs are
   WCAG AA (ratios computed in the design spec).
   ========================================================================== */

:root {
  /* dark = default */
  --bg: #0a0e1f;
  --surface: #141a38;
  --surface-2: #1a2145;
  --ink: #e9eefc;
  --muted: #9aa6c8;
  --line: #242c4e;
  --accent: #7b9cff;
  --accent-ink: #0a0e1f;

  --radius: 14px;
  --cta-radius: 999px;
  --cta-tracking: 0.04em;
  --cta-case: uppercase;

  --font-display: "Helvetica Neue", ui-sans-serif, Helvetica, Arial, sans-serif;
  --font-body: ui-sans-serif, "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-label: ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --logo-case: none;
  --logo-tracking: -0.01em;
  --logo-size: 0.92rem;
  --logo-weight: 700;
  --nav-case: uppercase;
  --nav-tracking: 0.02em;
  --nav-size: 0.76rem;
  --nav-weight: 500;
  --headline-weight: 800;
  --headline-lh: 1.05;
  --headline-tracking: -0.03em;

  /* gradient tokens (dark) */
  --page-nebula:
    radial-gradient(120% 60% at 50% -6%, rgba(150,170,255,0.20), transparent 55%),
    radial-gradient(80% 44% at 50% -10%, rgba(206,192,255,0.16), transparent 60%),
    radial-gradient(52% 30% at 50% -12%, rgba(255,222,205,0.11), transparent 62%);
  --hero-glow:
    radial-gradient(90% 70% at 50% 4%, rgba(123,156,255,0.18), transparent 60%);
  --card-glow: 0 0 0 1px var(--line), 0 24px 60px -34px rgba(80,110,255,0.55);
  --grad-line: linear-gradient(90deg, var(--accent), transparent 80%);
  --grad-border: linear-gradient(140deg, var(--accent), #c9b8ff 55%, #ffd8c2);
  --stars: 1;
}

/* Aurora is DARK by default (the owner's requirement): the deep-blue nebula
   shows regardless of the visitor's system preference. Light is opt-in only,
   via the header toggle, which stamps data-color-mode="light" on <html>. */
html[data-color-mode="light"] {
  --bg: #f6f8ff;
  --surface: #ffffff;
  --surface-2: #eef1ff;
  --ink: #0d1330;
  --muted: #4c5678;
  --line: #dce3f5;
  --accent: #2f45d6;
  --accent-ink: #ffffff;
  --page-nebula:
    radial-gradient(120% 60% at 50% -6%, rgba(120,150,255,0.16), transparent 55%),
    radial-gradient(80% 44% at 50% -10%, rgba(178,158,255,0.12), transparent 60%),
    radial-gradient(52% 30% at 50% -12%, rgba(255,206,180,0.10), transparent 62%);
  --hero-glow:
    radial-gradient(90% 70% at 50% 4%, rgba(90,120,235,0.10), transparent 60%);
  --card-glow: 0 0 0 1px var(--line), 0 20px 44px -30px rgba(60,90,220,0.30);
  --grad-border: linear-gradient(140deg, var(--accent), #6a49d8 55%, #c2582f);
  --stars: 0;
}

html[data-color-mode="dark"] {
  --bg: #0a0e1f;
  --surface: #141a38;
  --surface-2: #1a2145;
  --ink: #e9eefc;
  --muted: #9aa6c8;
  --line: #242c4e;
  --accent: #7b9cff;
  --accent-ink: #0a0e1f;
  --page-nebula:
    radial-gradient(120% 60% at 50% -6%, rgba(150,170,255,0.20), transparent 55%),
    radial-gradient(80% 44% at 50% -10%, rgba(206,192,255,0.16), transparent 60%),
    radial-gradient(52% 30% at 50% -12%, rgba(255,222,205,0.11), transparent 62%);
  --hero-glow:
    radial-gradient(90% 70% at 50% 4%, rgba(123,156,255,0.18), transparent 60%);
  --card-glow: 0 0 0 1px var(--line), 0 24px 60px -34px rgba(80,110,255,0.55);
  --grad-border: linear-gradient(140deg, var(--accent), #c9b8ff 55%, #ffd8c2);
  --stars: 1;
}

/* ---------- Immersive page nebula (whole site sits on the gradient) ------- */
body {
  background-color: var(--bg);
  background-image: var(--page-nebula);
  background-repeat: no-repeat;
  background-attachment: fixed;
}

/* logo accent ending */
.site-logo .logo-ia { color: var(--accent); }

/* ---------- Hero ---------- */
.home .hero {
  position: relative;
  border-bottom: none;
  background: var(--hero-glow);
  border-radius: var(--radius);
  padding: clamp(1.75rem, 4vw, 3rem) clamp(1.25rem, 3vw, 2.25rem) clamp(2rem, 4vw, 3rem);
  overflow: hidden;
}
/* CSS-only starfield, dark mode only (opacity token flips to 0 in light) */
.home .hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: var(--stars);
  background-image:
    radial-gradient(1px 1px at 12% 22%, rgba(255,255,255,0.55), transparent),
    radial-gradient(1px 1px at 78% 14%, rgba(255,255,255,0.40), transparent),
    radial-gradient(1px 1px at 34% 68%, rgba(255,255,255,0.35), transparent),
    radial-gradient(1px 1px at 62% 52%, rgba(255,255,255,0.30), transparent),
    radial-gradient(1.5px 1.5px at 88% 74%, rgba(255,255,255,0.30), transparent),
    radial-gradient(1px 1px at 22% 88%, rgba(255,255,255,0.26), transparent),
    radial-gradient(1px 1px at 50% 30%, rgba(255,255,255,0.20), transparent);
}
.home .hero > * { position: relative; z-index: 1; }

/* Eyebrow rendered as a glowing pill */
.page p.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-label);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink);
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 45%, transparent);
  border-radius: 999px;
  padding: 0.4rem 0.9rem;
  margin: 0 0 1.4rem;
}
.page p.hero-eyebrow::before {
  content: "";
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px 1px var(--accent);
}

.home .hero h1 {
  font-size: clamp(2.1rem, 5.2vw, 3.9rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
  max-width: 20ch;
}
.home .hero > h1 + p {
  font-size: clamp(1rem, 1.5vw, 1.18rem);
  max-width: 50ch;
  color: var(--muted);
}

/* ---------- Primary CTA button: rounded pill with accent glow ---------- */
.page p > strong:first-child > a:only-child {
  box-shadow: 0 10px 30px -12px var(--accent);
}
.page p > strong:first-child > a:only-child:hover { opacity: 0.9; }

/* ---------- Section headings become accent kickers ---------- */
.home section > h2 {
  font-family: var(--font-label);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 clamp(1.2rem, 2.5vw, 1.75rem);
}

/* ---------- Three-problems cards ---------- */
.home .problems-grid .card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.4rem 1.5rem;
  position: relative;
  overflow: hidden;
}
.home .problems-grid { counter-reset: problem; }
.home .problems-grid .card { counter-increment: problem; }
.home .problems-grid .card::before {
  content: counter(problem, decimal-leading-zero);
  position: absolute;
  top: -0.35rem; right: 0.4rem;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 4rem;
  line-height: 1;
  color: color-mix(in srgb, var(--accent) 12%, transparent);
  pointer-events: none;
}
.home .problems-grid .card > * { position: relative; }

/* ---------- Numbered step cards: glowing chip + gradient hairline ---------- */
.step-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
}
.step-card::after {
  content: "";
  position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--grad-line);
}
.step-num {
  color: var(--accent);
}
.step-arrow { color: var(--accent); }

/* ---------- Workflow graphic ---------- */
.wf-node {
  background: var(--surface);
  border-color: var(--line);
}
.wf-node--accent {
  border-color: transparent;
  background:
    linear-gradient(var(--surface), var(--surface)) padding-box,
    var(--grad-border) border-box;
  box-shadow: var(--card-glow);
}
.wf-num, .wf-loop { color: var(--accent); }
.wf-node::after { color: var(--accent); }

/* ---------- Home claim + CTA bands ---------- */
.home .claim-band {
  border-block: 1px solid var(--line);
  padding-block: clamp(1.6rem, 3.5vw, 2.5rem);
}
.home .claim-band > p {
  font-family: var(--font-display);
  font-size: clamp(1.15rem, 2vw, 1.55rem);
  font-weight: 700;
  letter-spacing: -0.015em;
  line-height: 1.35;
  max-width: 38ch;
  color: var(--ink);
  margin: 0;
}
.home .cta-band {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--card-glow);
  padding: clamp(2rem, 5vw, 3.25rem) clamp(1.5rem, 4vw, 2.5rem);
  margin-top: clamp(2.25rem, 5.5vw, 4rem);
  overflow: hidden;
  position: relative;
}
.home .cta-band::before {
  content: "";
  position: absolute; inset: 0; pointer-events: none;
  background: var(--hero-glow);
}
.home .cta-band > * { position: relative; z-index: 1; }
.home .cta-band h2 {
  font-family: var(--font-display);
  color: var(--ink);
  font-size: clamp(1.5rem, 2.7vw, 2.1rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  text-transform: none;
  margin: 0 0 1rem;
}
.home .cta-band p { color: var(--muted); }

/* ---------- Pricing page: tier headings + prominent prices ---------- */
.page.pricing h2 {
  border-top: 2px solid transparent;
  border-image: var(--grad-line) 1;
  padding-top: 1.1rem;
  margin-top: clamp(2rem, 4vw, 3rem);
  color: var(--ink);
}
/* the bold price / CTA lines already render via the shared button + strong rules */

/* ---------- Cards on inner pages (faq embed, etc.) keep the surface look --- */
.faq-embed { border-top-color: var(--line); }
