:root {
  --bg: #0b0f1a;
  --bg-alt: #101529;
  --card: #131a30;
  --text: #e6eaf2;
  --muted: #a8b3c7;
  --accent: #2dd4bf;
  --accent-dark: #1fa894;
  --purple: #7c5cff;
  --border: #212a45;
  --radius: 12px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.container { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 14, 20, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-img {
  width: 40px;
  height: 40px;
  border-radius: 9px;
  display: block;
}

.logo span {
  background: linear-gradient(90deg, var(--purple), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.2s;
}

.nav-links a:hover { color: var(--text); }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
}

/* Buttons */
.btn {
  display: inline-block;
  background: linear-gradient(90deg, var(--purple), var(--accent));
  color: #0b0f1a;
  font-weight: 700;
  padding: 14px 28px;
  border-radius: var(--radius);
  text-decoration: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  transition: background 0.2s, transform 0.2s;
}

.btn:hover { background: var(--accent-dark); transform: translateY(-1px); }

.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-ghost:hover { background: var(--card); }

.btn-small { padding: 8px 18px; font-size: 0.9rem; }

/* Hero */
.hero {
  padding: 110px 0 90px;
  background:
    radial-gradient(ellipse at top right, rgba(124, 92, 255, 0.14), transparent 55%),
    radial-gradient(ellipse at bottom left, rgba(45, 212, 191, 0.08), transparent 55%),
    var(--bg);
}

.hero-logo {
  width: 92px;
  height: 92px;
  border-radius: 20px;
  margin-bottom: 26px;
  display: block;
  box-shadow: 0 0 42px rgba(124, 92, 255, 0.4), 0 0 18px rgba(45, 212, 191, 0.25);
}

.eyebrow {
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 0.8rem;
  font-weight: 700;
  margin-bottom: 18px;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.15;
  max-width: 820px;
  margin-bottom: 22px;
  background: linear-gradient(90deg, #e6eaf2 30%, var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.lead { color: var(--muted); font-size: 1.1rem; max-width: 720px; margin-bottom: 32px; }
.lead strong { color: var(--text); }

.hero-cta { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 48px; }

.hero-stats {
  display: flex;
  gap: 48px;
  list-style: none;
  flex-wrap: wrap;
}

.hero-stats strong {
  display: block;
  font-size: 2rem;
  color: var(--accent);
}

.hero-stats span { color: var(--muted); font-size: 0.9rem; }

/* Sections */
.section { padding: 90px 0; }

.section-alt { background: var(--bg-alt); }

.section-title { font-size: 2rem; margin-bottom: 12px; }

.section-sub { color: var(--muted); margin-bottom: 48px; max-width: 640px; }

/* Cards */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color 0.2s, transform 0.2s;
}

.card:hover { border-color: var(--accent); transform: translateY(-3px); }

.card h3 { color: var(--accent); margin-bottom: 10px; font-size: 1.15rem; }
.card p { color: var(--muted); font-size: 0.95rem; }

/* Timeline */
.timeline { display: grid; gap: 36px; }

.timeline-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  padding: 28px 32px;
}

.timeline-date {
  color: var(--accent);
  font-weight: 700;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.timeline-item h3 { margin: 6px 0 14px; font-size: 1.2rem; }

.timeline-item ul { padding-left: 20px; color: var(--muted); }
.timeline-item li { margin-bottom: 8px; }

/* Speaking */
.speaking-list { list-style: none; max-width: 760px; }

.speaking-list li {
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
  color: var(--muted);
}

.speaking-list span {
  color: var(--accent);
  font-weight: 700;
  display: inline-block;
  width: 96px;
}

.speaking-links { margin-top: 28px; color: var(--muted); font-size: 0.95rem; }
.speaking-links a { color: var(--accent); }

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: start;
}

.about-grid p { color: var(--muted); margin-bottom: 16px; }

.skills h3 { margin-bottom: 16px; }

.tags { list-style: none; display: flex; flex-wrap: wrap; gap: 10px; }

.tags li {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 0.85rem;
  color: var(--muted);
}

/* Industry service links */
.industry-services { margin-top: 56px; }

.industry-services > h3 {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-size: 0.85rem;
  margin-bottom: 20px;
}

.card-link {
  display: inline-block;
  margin-top: 14px;
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
}

.card-link:hover { text-decoration: underline; }

.back-link { margin-top: 28px; }
.back-link a { color: var(--muted); text-decoration: none; }
.back-link a:hover { color: var(--text); }

.site-footer a { color: var(--muted); text-decoration: none; }
.site-footer a:hover { color: var(--text); }

/* FAQ */
.faq-list { max-width: 780px; }

.faq-list details {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 24px;
  margin-bottom: 14px;
}

.faq-list summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 1.02rem;
}

.faq-list details[open] summary { color: var(--accent); }

.faq-list details p { color: var(--muted); margin-top: 12px; font-size: 0.95rem; }

/* Contact */
.contact { text-align: center; }

.contact .section-sub { margin-left: auto; margin-right: auto; }

.contact-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 0;
  color: var(--muted);
  font-size: 0.9rem;
  text-align: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
}

.footer-logo {
  width: 30px;
  height: 30px;
  border-radius: 7px;
  display: block;
}

/* Responsive */
@media (max-width: 760px) {
  .nav-toggle { display: block; }

  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--bg-alt);
    border-bottom: 1px solid var(--border);
    padding: 20px 24px;
    gap: 18px;
    align-items: flex-start;
  }

  .nav-links.open { display: flex; }

  .about-grid { grid-template-columns: 1fr; }
  .hero { padding: 70px 0 60px; }
  .section { padding: 60px 0; }
}