@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400&display=swap');

:root {
  --bg: oklch(11% 0.018 240);
  --surface: oklch(15% 0.018 240);
  --surface2: oklch(19% 0.018 240);
  --border: oklch(24% 0.018 240);
  --text: oklch(94% 0.01 240);
  --muted: oklch(58% 0.015 240);
  --accent: oklch(62% 0.19 195);
  --accent-dim: oklch(62% 0.19 195 / 0.15);
  --font: 'Plus Jakarta Sans', sans-serif;
  --nav-h: 64px;
  --radius: 12px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }

/* ── NAV ── */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 100;
  display: flex;
  align-items: center;
  padding: 0 2rem;
  transition: background 0.4s, backdrop-filter 0.4s;
}

.site-nav.scrolled {
  background: oklch(11% 0.018 240 / 0.9);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
  color: var(--text);
  flex-shrink: 0;
}

.nav-logo span { color: var(--accent); }

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  margin-left: auto;
  align-items: center;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted);
  letter-spacing: 0.02em;
  transition: color 0.2s;
  text-transform: uppercase;
}

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

.nav-links a.active { color: var(--accent); }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  margin-left: auto;
  padding: 4px;
  background: none;
  border: none;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-h);
  left: 0; right: 0;
  background: oklch(11% 0.018 240 / 0.97);
  backdrop-filter: blur(20px);
  padding: 1.5rem 2rem;
  z-index: 99;
  border-bottom: 1px solid var(--border);
  flex-direction: column;
  gap: 0;
}

.mobile-menu.open { display: flex; }

.mobile-menu a {
  display: block;
  padding: 0.9rem 0;
  font-size: 1rem;
  font-weight: 500;
  color: var(--muted);
  border-bottom: 1px solid var(--border);
  transition: color 0.2s;
}

.mobile-menu a:last-child { border-bottom: none; }
.mobile-menu a:hover { color: var(--text); }
.mobile-menu a.active { color: var(--accent); }

/* ── SOCIAL DOCK ── */
.social-dock {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  z-index: 50;
}

.social-dock a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  color: var(--muted);
  transition: color 0.2s, transform 0.2s;
}

.social-dock a:hover {
  color: var(--accent);
  transform: translateX(-3px);
}

.social-dock svg { width: 18px; height: 18px; fill: currentColor; }

/* ── PAGE WRAPPER ── */
.page-content {
  padding-top: var(--nav-h);
  min-height: 100vh;
}

/* ── SECTIONS ── */
.section {
  padding: 5rem 2rem;
  max-width: 960px;
  margin: 0 auto;
}

.section-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 1.5rem;
}

.divider {
  width: 40px;
  height: 3px;
  background: var(--accent);
  margin-bottom: 2.5rem;
  border-radius: 2px;
}

/* ── ANIMATIONS ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-up { animation: fadeUp 0.7s ease both; }
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }
.delay-5 { animation-delay: 0.5s; }

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .section { padding: 3rem 1.25rem; }
  .social-dock { bottom: 1rem; right: 1rem; gap: 0.5rem; }
  .social-dock a { width: 30px; height: 30px; }
  .social-dock svg { width: 16px; height: 16px; }
}