/* AI Holding Solutions — design system
   Six approved themes rotate on every page load via localStorage (see
   includes/header.php — the theme is set before this file is requested,
   so there's no flash, and it never repeats back-to-back). Only
   --bg-*/--text-*/--accent-*/--border-color change between themes;
   layout, spacing, and type stay constant. */

:root {
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --container-width: 1240px;
  --space-section: clamp(64px, 9vw, 120px);
  --transition-fast: 180ms ease;
  --transition-normal: 320ms ease;

  --font-display: "Manrope", -apple-system, "Segoe UI", system-ui, sans-serif;
  --font-body: "Inter", -apple-system, "Segoe UI", system-ui, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;

  /* Fallback (theme-tech) if JS is disabled */
  --bg-primary: #07111f;
  --bg-secondary: #0d1b2d;
  --text-primary: #ffffff;
  --text-secondary: #a9b7c8;
  --accent-primary: #2f8cff;
  --accent-secondary: #5ee7ff;
  --border-color: rgba(255,255,255,.10);
  --on-accent: #07111f;
}

[data-theme="theme-tech"] {
  --bg-primary: #07111f; --bg-secondary: #0d1b2d;
  --text-primary: #ffffff; --text-secondary: #a9b7c8;
  --accent-primary: #2f8cff; --accent-secondary: #5ee7ff;
  --border-color: rgba(255,255,255,.10); --on-accent: #07111f;
}
[data-theme="theme-executive"] {
  --bg-primary: #101214; --bg-secondary: #181b20;
  --text-primary: #ffffff; --text-secondary: #b5bbc4;
  --accent-primary: #5b9cff; --accent-secondary: #d7e4f5;
  --border-color: rgba(255,255,255,.10); --on-accent: #101214;
}
[data-theme="theme-future"] {
  --bg-primary: #0b0820; --bg-secondary: #15102d;
  --text-primary: #ffffff; --text-secondary: #bcb6d2;
  --accent-primary: #7b61ff; --accent-secondary: #4edcff;
  --border-color: rgba(255,255,255,.10); --on-accent: #0b0820;
}
[data-theme="theme-cloud"] {
  --bg-primary: #061a2e; --bg-secondary: #0b2540;
  --text-primary: #ffffff; --text-secondary: #a6bdd6;
  --accent-primary: #2f9bff; --accent-secondary: #6fd8ff;
  --border-color: rgba(255,255,255,.10); --on-accent: #061a2e;
}
[data-theme="theme-enterprise"] {
  --bg-primary: #071713; --bg-secondary: #0c211c;
  --text-primary: #ffffff; --text-secondary: #a8c0b8;
  --accent-primary: #25c58a; --accent-secondary: #65e7c0;
  --border-color: rgba(255,255,255,.10); --on-accent: #071713;
}
[data-theme="theme-light"] {
  --bg-primary: #ffffff; --bg-secondary: #f4f6f9;
  --text-primary: #0b1220; --text-secondary: #4a5568;
  --accent-primary: #2563eb; --accent-secondary: #60a5fa;
  --border-color: rgba(11,18,32,.12); --on-accent: #ffffff;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background var(--transition-normal), color var(--transition-normal);
}

body { padding-top: var(--header-h, 76px); }

.wrap {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

a { color: var(--accent-primary); text-decoration: none; }
a:hover, a:focus-visible { color: var(--text-primary); }
a:focus-visible, button:focus-visible { outline: 2px solid var(--accent-primary); outline-offset: 2px; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.01em;
  margin: 0 0 0.5em;
}
h1 { font-size: clamp(2.8rem, 6vw, 5.8rem); line-height: 1.05; }
h2 { font-size: clamp(2rem, 4vw, 3.5rem); line-height: 1.12; }
h3 { font-size: clamp(1.35rem, 2vw, 1.75rem); }

p { color: var(--text-secondary); margin: 0 0 1em; font-size: 1.05rem; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-primary);
  display: block;
  margin-bottom: 0.9em;
}

/* Header — fixed, stays in place while scrolling. Just brand + CTA;
   all navigation links live in the footer (see includes/footer.php). */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  width: 100%;
  z-index: 50;
  background: color-mix(in srgb, var(--bg-primary) 55%, transparent);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: background var(--transition-normal), border-color var(--transition-normal);
}
.site-header.is-scrolled {
  background: color-mix(in srgb, var(--bg-primary) 92%, transparent);
  border-bottom-color: var(--border-color);
}
.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  padding-bottom: 16px;
  gap: 24px;
}
.brand {
  font-family: var(--font-display);
  font-weight: 800;
  color: var(--text-primary);
  font-size: 1.1rem;
  white-space: nowrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 13px 24px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--transition-fast), background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast);
  min-height: 44px;
}
.btn-sm { padding: 9px 16px; min-height: 38px; font-size: 0.88rem; }
.btn-primary { background: var(--accent-primary); color: var(--on-accent); }
.btn-primary:hover { transform: translateY(-1px); filter: brightness(1.08); color: var(--on-accent); }
.btn-ghost { background: transparent; border-color: var(--border-color); color: var(--text-primary); }
.btn-ghost:hover { border-color: var(--accent-primary); color: var(--accent-primary); }
.btn-arrow::after { content: "→"; transition: transform var(--transition-fast); }
.btn-arrow:hover::after { transform: translateX(3px); }

/* Hero */
.hero {
  position: relative;
  padding: calc(var(--space-section) + 20px) 0 var(--space-section);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: -15% -10% auto -10%;
  height: 560px;
  background:
    radial-gradient(560px 320px at 18% 15%, color-mix(in srgb, var(--accent-primary) 22%, transparent), transparent 70%),
    radial-gradient(480px 300px at 82% 5%, color-mix(in srgb, var(--accent-secondary) 16%, transparent), transparent 70%);
  pointer-events: none;
  z-index: 0;
}
.hero .wrap { position: relative; z-index: 1; }
.hero h1 { max-width: 16ch; }
.hero p.lede { font-size: 1.2rem; max-width: 58ch; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 32px; }

/* Sections */
section { padding: var(--space-section) 0; position: relative; }
section + section { border-top: 1px solid var(--border-color); }
.section-head { max-width: 64ch; margin-bottom: 2.75rem; }
.section-center { text-align: center; margin-left: auto; margin-right: auto; }

/* Trust / capability strip */
.trust-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.trust-chip {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  border-radius: 999px;
  padding: 9px 18px;
  background: var(--bg-secondary);
}

/* Solution / pillar cards */
.pillar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 22px;
}
.pillar-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 30px;
  transition: transform var(--transition-fast), border-color var(--transition-fast);
  scroll-margin-top: 100px;
}
.pillar-card:hover { transform: translateY(-3px); border-color: var(--accent-primary); }
.pillar-card h3 { font-size: 1.2rem; margin: 0.4em 0 0.4em; }
.pillar-card ul { margin: 0.9em 0 1.2em; padding-left: 1.1em; color: var(--text-secondary); font-size: 0.92rem; }
.pillar-card li { margin-bottom: 0.4em; }
.pillar-card .btn { padding: 9px 16px; min-height: 0; }

/* Icon badge — holds the per-solution SVG icon */
.icon-badge {
  width: 52px; height: 52px;
  border-radius: var(--radius-md);
  background: color-mix(in srgb, var(--accent-primary) 16%, transparent);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent-primary);
  margin-bottom: 1.1em;
}
.icon-badge svg { width: 26px; height: 26px; }

/* Outcomes grid */
.outcome-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 22px;
}
.outcome-card { border-top: 2px solid var(--accent-primary); padding-top: 16px; }
.outcome-card h3 { font-size: 1.05rem; }

/* Process timeline */
.timeline { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.timeline-step { border-top: 2px solid var(--border-color); padding-top: 18px; position: relative; }
.timeline-step .step-num {
  font-family: var(--font-display); font-weight: 800; font-size: 1.6rem;
  color: var(--accent-primary); display: block; margin-bottom: 0.4em;
}
.timeline-step h3 { font-size: 1.02rem; }
.timeline-step p { font-size: 0.92rem; }
@media (max-width: 860px) {
  .timeline { grid-template-columns: 1fr; }
}

/* AI examples list */
.chip-list { display: flex; flex-wrap: wrap; gap: 10px; }
.chip-list span {
  border: 1px solid var(--border-color);
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 0.88rem;
  color: var(--text-secondary);
}

/* Industries */
.industry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 14px;
}
.industry-card {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 20px;
  background: var(--bg-secondary);
}
.industry-card h3 { font-size: 1rem; margin: 0; }

/* Placeholder / coming-soon card */
.placeholder-card {
  border: 1px dashed var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px;
  text-align: center;
}
.placeholder-card p { max-width: 48ch; margin-left: auto; margin-right: auto; }

/* CTA banner */
.cta-banner {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 56px 40px;
  text-align: center;
}

/* Metric cards (kept for when real, defensible figures are supplied) */
.metric-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 22px; }
.metric-card .value { font-family: var(--font-display); font-size: clamp(1.8rem, 3vw, 2.6rem); font-weight: 800; color: var(--text-primary); }
.metric-card .label { font-size: 0.85rem; color: var(--text-secondary); }

/* Forms */
form { max-width: 560px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 0 16px; }
@media (max-width: 560px) { .form-row { grid-template-columns: 1fr; } }
label { display: block; font-size: 0.85rem; color: var(--text-secondary); margin: 16px 0 6px; }
input, textarea, select {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  padding: 12px 14px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  min-height: 44px;
}
textarea { min-height: 120px; }
button[type="submit"] {
  margin-top: 24px;
  background: var(--accent-primary);
  color: var(--on-accent);
  border: none;
  border-radius: var(--radius-sm);
  padding: 13px 24px;
  font-weight: 700;
  font-size: 0.95rem;
  cursor: pointer;
  min-height: 44px;
}
button[type="submit"]:hover { filter: brightness(1.08); }

/* Footer */
.site-footer { border-top: 1px solid var(--border-color); padding: var(--space-section) 0 0; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr repeat(3, 1fr);
  gap: 32px;
  padding-bottom: 40px;
}
.footer-brand p { font-size: 0.9rem; max-width: 34ch; }
.site-footer h4 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-primary); margin-bottom: 1em; }
.footer-list { list-style: none; margin: 0; padding: 0; }
.footer-list li { margin-bottom: 0.6em; }
.footer-list a { color: var(--text-secondary); font-size: 0.9rem; }
.footer-list a:hover { color: var(--accent-primary); }
.footer-bottom { border-top: 1px solid var(--border-color); padding: 22px 0; }
.footer-bottom p { color: var(--text-secondary); font-size: 0.85rem; margin: 0; }
@media (max-width: 780px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

/* Scroll reveal */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity 560ms ease, transform 560ms ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media (max-width: 900px) {
  .timeline { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .reveal { opacity: 1; transform: none; }
}