/* ═══════════════════════════════════════════
   CYBERKYRIAN — SHARED BRAND STYLES
   Source of truth: BRAND.md
   Link this on every page, then add a page-
   specific stylesheet after it if needed.
════════════════════════════════════════════ */

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

:root {
  --bg: #080a0c;
  --bg2: #0d1014;
  --bg3: #111418;
  --border: rgba(255,255,255,0.07);
  --border2: rgba(255,255,255,0.12);
  --text: #e8eaec;
  --muted: #7a8491;
  --accent: #4db8d4;
  --accent2: #7dd4e8;
  --accent-dim: rgba(77,184,212,0.08);
  --accent-dim2: rgba(77,184,212,0.12);
  --accent-border: rgba(77,184,212,0.2);
  --mono: 'Space Mono', monospace;
  --sans: 'DM Sans', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.grid-bg {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(77,184,212,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(77,184,212,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

/* ── NAV ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0 5vw;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(8,10,12,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  height: 36px;
  flex-shrink: 0;
}

.nav-logo svg {
  height: 30px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  text-decoration: none;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: color 0.2s;
}

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

main { position: relative; z-index: 1; }

/* ── SECTIONS ── */
section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 6rem 5vw;
}

.section-label {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
  display: flex;
  align-items: center;
  gap: 10px;
}

.section-label::after {
  content: '';
  flex: 1;
  max-width: 60px;
  height: 1px;
  background: var(--accent);
  opacity: 0.4;
}

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  text-decoration: none;
  border-radius: 2px;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--accent);
  color: #060c14;
  font-weight: 700;
}

.btn-primary:hover {
  background: #7dd4e8;
  transform: translateY(-1px);
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border2);
}

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ── FOOTER ── */
footer {
  border-top: 1px solid var(--border);
  padding: 2rem 5vw;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
  z-index: 1;
}

.footer-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  height: 28px;
}

.footer-logo svg { height: 24px; width: auto; display: block; }

.footer-right {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
}

.footer-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.footer-links a {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  text-decoration: none;
  letter-spacing: 0.06em;
  transition: color 0.2s;
}

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

.divider {
  height: 1px;
  background: var(--border);
  max-width: 1100px;
  margin: 0 auto;
}

/* ── FADE IN ── */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-in.visible { opacity: 1; transform: none; }

/* ── HAMBURGER ── */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: none;
  border: 1px solid var(--border2);
  border-radius: 2px;
  cursor: pointer;
  padding: 8px;
  flex-shrink: 0;
}

.nav-hamburger span {
  display: block;
  height: 1.5px;
  background: var(--text);
  border-radius: 1px;
  transition: all 0.25s ease;
  transform-origin: center;
}

.nav-hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.mobile-menu {
  display: none;
  position: fixed;
  top: 64px; left: 0; right: 0;
  background: rgba(8,10,12,0.97);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  z-index: 99;
  padding: 1rem 5vw 1.5rem;
  flex-direction: column;
  gap: 0;
}

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

.mobile-menu a {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  transition: color 0.2s;
}

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

@keyframes blink { 50% { opacity: 0; } }

/* ── RESPONSIVE (shared) ── */
@media (max-width: 768px) {
  nav .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  footer { flex-direction: column; gap: 1rem; text-align: center; }
  .footer-links { justify-content: center; }
}