*{ box-sizing: border-box; }
:root{
  --bg: #0b1020;
  --ink: #0f172a;
  --muted: #64748b;
  --card: #ffffff;
  --brand: #2563eb;
  --brand-2: #06b6d4;
  --ring: #93c5fd;
  --radius: 16px;
}
html, body { margin: 0; padding: 0; }
body { font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif; color: #0f172a; }

.header {
  background: linear-gradient(90deg, var(--brand), var(--brand-2));
  color: #fff;
  position: sticky; top: 0; z-index: 50;
  box-shadow: 0 6px 18px rgba(0,0,0,.15);
}
.nav {
  max-width: 1100px; margin: 0 auto; padding: 14px 18px;
  display: flex; align-items: center; justify-content: space-between;
}
.brand {
  font-weight: 800; text-decoration: none; color: #fff; font-size: 1.25rem;
  letter-spacing: .3px;
}
.brand span { opacity: .9; font-weight: 700; }
.nav__list {
  list-style: none; display: flex; gap: 18px; margin: 0; padding: 0;
}
.nav__list a {
  color: #fff; text-decoration: none; font-weight: 600; padding: 8px 10px;
  border-radius: 10px; transition: background .2s ease;
}
.nav__list a:hover, .nav__list a.active { background: rgba(255,255,255,.18); }


.hero {
  background:
    radial-gradient(800px 400px at 15% 20%, rgba(37,99,235,.35), transparent 60%),
    radial-gradient(700px 350px at 85% 30%, rgba(6,182,212,.35), transparent 60%),
    linear-gradient(180deg, #0b1020, #0b132b 60%, #0e172f);
  color: #e5e7eb;
}
.hero__content {
  max-width: 1100px; margin: 0 auto; padding: 60px 18px;
}
.hero h1 {
  margin: 0 0 10px; font-size: clamp(26px, 4vw, 40px); color: #fff;
}
.tagline { color: #cbd5e1; margin: 0 0 18px; }

.btn {
  display: inline-block; background: #fff; color: var(--ink);
  padding: 10px 16px; border-radius: 12px; text-decoration: none; font-weight: 700;
  box-shadow: 0 6px 16px rgba(255,255,255,.15);
}
.btn:hover { filter: brightness(0.98); }


.main { max-width: 1100px; margin: 28px auto; padding: 0 18px 60px; }
.section-title { font-size: 1.6rem; margin: 12px 0 18px; }

.cards {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 18px;
}
.card {
  grid-column: span 12;
  background: var(--card);
  border: 1px solid #e5e7eb;
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: 0 10px 20px rgba(0,0,0,.08);
}
.card h3 { margin: 0 0 8px; font-size: 1.1rem; }
.card p { margin: 0 0 12px; color: var(--muted); }
.link {
  display: inline-block;
  color: var(--brand);
  text-decoration: none;
  font-weight: 700;
}
.link:hover { text-decoration: underline; }


.videos {
  max-width: 1000px;
  margin: 40px auto;
  padding: 0 20px;
}

.video-card {
  background: white;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
  padding: 20px;
  text-align: center;
  margin-bottom: 30px;
  transition: transform 0.2s ease;
}

.video-card:hover {
  transform: translateY(-4px);
}

.thumbnail {
  width: 100%;
  max-width: 500px;
  border-radius: 10px;
  margin-top: 10px;
  transition: opacity 0.3s;
}

.thumbnail:hover {
  opacity: 0.8;
}


@media (min-width: 640px) {
  .card { grid-column: span 6; }
}
@media (min-width: 960px) {
  .card { grid-column: span 3; }
}


.footer {
  border-top: 1px solid #e5e7eb;
  text-align: center;
  padding: 18px;
  color: #475569;
  background: #fafafa;
}


.container { max-width: 1100px; margin: 0 auto; padding: 28px 18px 60px; }


.hero--about {
  background:
    radial-gradient(700px 350px at 20% 30%, rgba(37,99,235,.28), transparent 60%),
    radial-gradient(700px 350px at 80% 20%, rgba(6,182,212,.28), transparent 60%),
    linear-gradient(180deg, #0b1020, #0b132b 60%, #0e172f);
  color: #e5e7eb;
  padding: 54px 18px;
  text-align: center;
}
.hero--about .hero__inner { max-width: 900px; margin: 0 auto; }
.hero--about h1 { margin: 0 0 8px; color: #fff; font-size: clamp(28px, 4vw, 40px); }
.hero--about p { margin: 0; color: #cbd5e1; }


.about__card {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 24px;
  background: #fff;
  border: 1px solid #e5e7eb;
  border-radius: 16px;
  padding: 22px;
  box-shadow: 0 10px 22px rgba(0,0,0,.08);
}
.about__photo {
  width: 100%;
  height: 100%;
  max-height: 500px;
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid #e5e7eb;
}
.about__content { display: grid; gap: 10px; }
.about__name { margin: 0; font-size: 1.6rem; color: #0f172a; }
.about__meta { margin: 0; color: #64748b; }
.about__text { margin: 8px 0 0; color: #1e293b; line-height: 1.6; }


.chips { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 6px; }
.chip {
  padding: 6px 10px; border-radius: 999px; font-size: .9rem; color: #0f172a;
  background: #f1f5f9; border: 1px solid #e2e8f0;
}


.quote {
  margin: 8px 0 0; padding-left: 14px; border-left: 4px solid #2563eb;
  color: #475569; font-style: italic;
}


.actions { display: flex; gap: 12px; margin-top: 8px; flex-wrap: wrap; }
.btn {
  display: inline-block; background: #2563eb; color: #fff; text-decoration: none;
  padding: 10px 14px; border-radius: 10px; font-weight: 700;
  box-shadow: 0 6px 16px rgba(37,99,235,.25); transition: filter .2s, transform .05s;
}
.btn:hover { filter: brightness(1.05); }
.btn:active { transform: translateY(1px); }
.btn--ghost {
  background: #f8fafc; color: #0f172a; border: 1px solid #e2e8f0; box-shadow: none;
}


@media (max-width: 780px) {
  .about__card { grid-template-columns: 1fr; }
  .about__photo { max-height: 300px; }
}