/* DataSpark — Dark premium enterprise AI platform */
:root {
  --bg-dark: #0A0F14;
  --bg-slate: #141B23;
  --bg-panel: #1E2733;
  --accent: #0EA5E9;
  --accent-dim: rgba(14, 165, 233, 0.12);
  --text: #F0F4F8;
  --text-muted: #94A3B8;
  --sidebar-w: 260px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'IBM Plex Sans', sans-serif;
  --radius: 8px;
  --transition: 0.3s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body.site-dataspark {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg-dark);
  min-height: 100vh;
}

img { max-width: 100%; height: auto; display: block; }

.img-contained {
  max-width: 560px;
  border-radius: var(--radius);
}

.img-contained-sm {
  max-width: 420px;
  border-radius: var(--radius);
}
a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: #38BDF8; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text);
}

h1 { font-size: clamp(2rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); margin-bottom: 1rem; }
h3 { font-size: 1.25rem; margin-bottom: 0.5rem; }

p { margin-bottom: 1rem; }
ul, ol { margin-bottom: 1rem; padding-left: 1.25rem; }
li { margin-bottom: 0.35rem; }

.surface-dark { background: var(--bg-dark); }
.surface-slate { background: var(--bg-slate); }
.surface-panel { background: var(--bg-panel); }
.surface-accent { background: var(--accent-dim); border: 1px solid rgba(14, 165, 233, 0.28); }

.container { width: 100%; max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; }
.container-wide { width: 100%; max-width: 1280px; margin: 0 auto; padding: 0 1.5rem; }
.section { padding: 4rem 0; }

.eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.divider-sky {
  width: 48px;
  height: 3px;
  background: var(--accent);
  margin: 1.25rem 0 1.5rem;
}

/* Sidebar layout */
.sidebar-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-w);
  height: 100vh;
  z-index: 200;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--bg-panel);
  transition: transform var(--transition);
}

.sidebar-brand {
  padding: 1.5rem;
  border-bottom: 1px solid var(--bg-panel);
}

.sidebar-brand a {
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.02em;
}

.sidebar-brand a:hover { color: var(--accent); }

.sidebar-links {
  list-style: none;
  padding: 1rem 0;
  flex: 1;
  overflow-y: auto;
}

.sidebar-links a {
  display: block;
  padding: 0.7rem 1.5rem;
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.95rem;
  border-left: 3px solid transparent;
  transition: all var(--transition);
}

.sidebar-links a:hover,
.sidebar-links a.active {
  color: var(--accent);
  background: var(--accent-dim);
  border-left-color: var(--accent);
}

.sidebar-scrim {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  z-index: 150;
  opacity: 0;
  transition: opacity var(--transition);
  pointer-events: none;
}

.sidebar-scrim.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.dataspark-shell {
  margin-left: var(--sidebar-w);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.dataspark-header {
  display: none;
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 0.85rem 1.25rem;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--bg-panel);
}

.wordmark {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
}

.sidebar-toggle {
  background: var(--bg-panel);
  border: 1px solid rgba(14, 165, 233, 0.3);
  color: var(--text);
  width: 44px;
  height: 44px;
  border-radius: var(--radius);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Hero Pattern B */
.hero-cinematic {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 15, 20, 0.35) 0%, rgba(10, 15, 20, 0.82) 55%, var(--bg-dark) 100%);
  z-index: 1;
}

.hero-badge {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 2;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.45rem 0.85rem;
  background: rgba(30, 39, 51, 0.85);
  border: 1px solid rgba(14, 165, 233, 0.35);
  border-radius: var(--radius);
  color: var(--text-muted);
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 3rem 1.5rem 4.5rem;
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
}

.hero-serial {
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.hero-ctas { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 1.75rem; }

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
}

.btn-primary {
  background: #0A0F14;
  color: #F0F4F8;
  border-color: #0EA5E9;
}

.btn-primary:hover {
  background: #141B23;
  color: #ffffff;
  border-color: #38BDF8;
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
}

.btn-outline:hover { background: var(--accent-dim); }

/* Stats */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  padding: 2rem 0;
}

.stat-strip > div { text-align: center; padding: 1rem; }

.stat-num {
  font-family: var(--font-display);
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 0.35rem;
}

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.pipeline-card {
  background: var(--bg-panel);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color var(--transition);
}

.pipeline-card:hover { border-color: rgba(14, 165, 233, 0.4); }

.pipeline-card svg { width: 28px; height: 28px; color: var(--accent); margin-bottom: 0.75rem; }

.spark-tag {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.split-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
}

.split-panel img { border-radius: var(--radius); }

.mosaic-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.mosaic-card {
  background: var(--bg-panel);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.mosaic-card img { border-radius: var(--radius); width: 100%; margin-bottom: 1rem; }

.faq-split { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; }

.faq-item {
  margin-bottom: 1.75rem;
  padding-bottom: 1.75rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.faq-item:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }

.cta-band { text-align: center; padding: 4rem 2rem; }
.cta-band p { color: var(--text-muted); max-width: 560px; margin: 0 auto 1.5rem; }

.disclaimer-text { font-size: 0.88rem; color: var(--text-muted); line-height: 1.6; }

/* Inner pages */
.page-hero { padding: 3.5rem 0 2.5rem; border-bottom: 1px solid var(--bg-panel); }

.program-list { display: flex; flex-direction: column; gap: 2rem; }

.program-card {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 2rem;
  background: var(--bg-panel);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.program-card img { width: 100%; height: 100%; object-fit: cover; min-height: 200px; }

.program-meta { padding: 2rem; }
.program-code { font-size: 0.8rem; color: var(--accent); font-weight: 600; margin-bottom: 0.5rem; }
.program-price { font-family: var(--font-display); font-size: 1.35rem; font-weight: 700; color: var(--accent); margin-top: 1rem; }

.service-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.service-card {
  background: var(--bg-panel);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius);
  padding: 1.75rem;
}

.service-card img {
  border-radius: var(--radius);
  margin-bottom: 1rem;
  max-width: 220px;
}

.about-split {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 2.5rem;
  align-items: start;
}

.metric-rail { display: flex; flex-direction: column; gap: 1rem; }

.metric-block {
  background: var(--bg-dark);
  border: 1px solid rgba(14, 165, 233, 0.25);
  border-radius: var(--radius);
  padding: 1.25rem;
  text-align: center;
}

.portrait-stack img { border-radius: var(--radius); margin-top: 0.5rem; }

.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; }

.legal-prose h2 { margin-top: 2rem; font-size: 1.35rem; }
.legal-prose h3 { margin-top: 1.5rem; font-size: 1.1rem; color: var(--accent); }
.legal-prose p, .legal-prose li { color: var(--text-muted); }

/* Forms */
.form-group { margin-bottom: 1.25rem; }
.form-group label { display: block; font-weight: 600; font-size: 0.9rem; margin-bottom: 0.4rem; }

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg-panel);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
}

.form-group input:focus,
.form-group textarea:focus { outline: none; border-color: var(--accent); }

.form-group textarea { min-height: 140px; resize: vertical; }

.form-hp { position: absolute; left: -9999px; opacity: 0; height: 0; overflow: hidden; }

.form-check { display: flex; align-items: flex-start; gap: 0.6rem; font-size: 0.9rem; }
.form-check input { margin-top: 0.25rem; width: auto; }

.form-success {
  background: var(--accent-dim);
  border: 1px solid var(--accent);
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  margin-bottom: 1.5rem;
}

.contact-details { list-style: none; padding: 0; }
.contact-details li { margin-bottom: 0.75rem; }

.legal-hub-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-top: 2rem;
}

.legal-hub-card {
  background: var(--bg-panel);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: var(--radius);
  padding: 1.5rem;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--bg-panel);
  padding: 3rem 0 1.5rem;
  margin-top: auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-col h4 {
  font-family: var(--font-display);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 1rem;
}

.footer-col ul { list-style: none; padding: 0; }
.footer-col li { margin-bottom: 0.4rem; color: var(--text-muted); font-size: 0.9rem; }
.footer-col a { color: var(--text-muted); }
.footer-col a:hover { color: var(--accent); }

.footer-brand .logo {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}

.footer-disclaimer,
.footer-hosting {
  font-size: 0.8rem;
  color: var(--text-muted);
  padding: 1rem 0;
  border-top: 1px solid var(--bg-panel);
  line-height: 1.55;
}

/* Cookie banner */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 500;
  padding: 1.25rem 1.5rem;
  border-top: 1px solid rgba(14, 165, 233, 0.3);
  transform: translateY(100%);
  transition: transform var(--transition);
}

.cookie-banner.is-visible { transform: translateY(0); }

.cookie-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
}

.cookie-inner > p { flex: 1; min-width: 240px; font-size: 0.9rem; color: var(--text-muted); margin: 0; }

.cookie-btns { display: flex; flex-wrap: wrap; gap: 0.5rem; }

.cookie-accept,
.cookie-reject,
.cookie-custom {
  padding: 0.5rem 1.1rem;
  font-size: 0.85rem;
  font-weight: 600;
  border-radius: var(--radius);
  cursor: pointer;
  font-family: var(--font-body);
}

.cookie-accept { background: var(--accent); color: var(--bg-dark); border: none; }
.cookie-reject, .cookie-custom { background: transparent; color: var(--text); border: 1px solid var(--bg-panel); }

.cookie-panel {
  width: 100%;
  padding-top: 1rem;
  margin-top: 0.5rem;
  border-top: 1px solid var(--bg-slate);
}

.cookie-panel label { display: flex; align-items: center; gap: 0.5rem; margin-bottom: 0.5rem; font-size: 0.9rem; }

/* Scroll reveal */
.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.js .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 900px) {
  .card-grid, .mosaic-grid, .service-grid, .legal-hub-grid { grid-template-columns: 1fr; }
  .split-panel, .grid-2, .faq-split, .footer-grid, .about-split { grid-template-columns: 1fr; }
  .program-card { grid-template-columns: 1fr; }
  .stat-strip { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .sidebar-nav { transform: translateX(-100%); }
  .sidebar-nav.is-open { transform: translateX(0); }
  .sidebar-scrim { display: block; }
  .dataspark-shell { margin-left: 0; }
  .dataspark-header { display: flex; }
  .hero-cinematic { min-height: 75vh; }
  .hero-badge { display: none; }
}