@import url('https://fonts.googleapis.com/css2?family=Geist:wght@300;400;500;700&display=swap');

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

:root {
  --bg: #060810;
  --bg2: #0d1117;
  --bg3: #161b27;
  --border: rgba(99,179,255,0.1);
  --text: #e8f0ff;
  --muted: #7789af;
  --accent: #63b3ff;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Geist', sans-serif;
  font-size: 16px;
  line-height: 1.7;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 28px 0;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg);
  z-index: 100;
}

.logo {
  font-size: 18px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.5px;
}

.nav-links { display: flex; gap: 32px; }

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s;
}

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

section {
  padding: 96px 0;
  border-bottom: 1px solid var(--border);
}

.section-tag {
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.05em;
  margin-bottom: 20px;
}

h2 {
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -1px;
  margin-bottom: 24px;
  line-height: 1.2;
  color: var(--text);
}

p {
  color: var(--muted);
  font-size: 16px;
  margin-bottom: 16px;
}

/* HERO */
.hero {
  padding: 120px 0 96px;
  border-bottom: 1px solid var(--border);
}

.hero-tag {
  font-size: 13px;
  color: var(--accent);
  margin-bottom: 24px;
  font-weight: 500;
}

.hero h1 {
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 700;
  letter-spacing: -2px;
  line-height: 1.1;
  color: var(--text);
  margin-bottom: 20px;
}

.accent { color: var(--accent); }

.hero-sub {
  font-size: 18px;
  color: var(--muted);
  margin-bottom: 40px;
}

.hero-btns { display: flex; gap: 16px; flex-wrap: wrap; }

.btn-primary {
  display: inline-block;
  background: var(--accent);
  color: #060810;
  padding: 12px 24px;
  border-radius: 6px;
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  transition: opacity 0.2s;
}

.btn-primary:hover { opacity: 0.85; }

.btn-ghost {
  display: inline-block;
  background: transparent;
  color: var(--text);
  padding: 12px 24px;
  border-radius: 6px;
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid var(--border);
  transition: border-color 0.2s;
}

.btn-ghost:hover { border-color: rgba(99,179,255,0.3); }

/* ABOUT with three video background */
.about-section {
  position: relative;
  overflow: hidden;
  padding: 96px 0;
  border-bottom: 1px solid var(--border);
}

.video-strip {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  gap: 3px;
  z-index: 0;
}

.video-panel {
  flex: 1;
  overflow: hidden;
  position: relative;
}

.video-panel video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.60;
  filter: saturate(0.6) brightness(0.7) hue-rotate(200deg);
}

.video-strip::before,
.video-strip::after {
  content: '';
  position: absolute;
  top: 0;
  width: 120px;
  height: 100%;
  z-index: 2;
}

.video-strip::before {
  left: 0;
  background: linear-gradient(to right, var(--bg), transparent);
}

.video-strip::after {
  right: 0;
  background: linear-gradient(to left, var(--bg), transparent);
}

.bg-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--bg);
  opacity: 0.25;
  z-index: 1;
}

.about-content {
  position: relative;
  z-index: 3;
}

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

@media (max-width: 600px) {
  .about-grid { grid-template-columns: 1fr; }
}

.skills-box {
  background: rgba(13,17,23,0.5);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 24px;
  backdrop-filter: blur(1.5px);
}

.skills-title {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-bottom: 16px;
}

.tags { display: flex; flex-wrap: wrap; gap: 8px; }

.tag {
  background: var(--bg3);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 13px;
  padding: 6px 14px;
  border-radius: 999px;
}

/* CARDS */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 16px;
  margin-top: 40px;
}

.card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  transition: border-color 0.2s;
}

.card:hover { border-color: rgba(99,179,255,0.35); }

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.card-num {
  font-size: 12px;
  color: var(--muted);
  font-weight: 500;
}

.card-tag {
  font-size: 11px;
  color: var(--accent);
  background: rgba(99,179,255,0.1);
  padding: 3px 10px;
  border-radius: 999px;
}

.card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 8px;
  letter-spacing: -0.3px;
}

.card-link {
  display: inline-block;
  margin-top: 16px;
  font-size: 13px;
  color: var(--accent);
  text-decoration: none;
}

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

/* CONTACT */
#contact { text-align: center; }

.contact-sub {
  max-width: 400px;
  margin: 0 auto 32px;
}

.socials {
  display: flex;
  justify-content: center;
  gap: 32px;
  margin-top: 40px;
}

.socials a {
  color: var(--muted);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s;
}

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

/* FOOTER */
footer {
  padding: 40px 0;
  text-align: center;
}

footer p {
  font-size: 13px;
  color: var(--muted);
}