/* ══════════════════════════════════════════════════════
   SHARED DESIGN SYSTEM — Portfolio Pages
   Extracted from main index.html for reuse
   ══════════════════════════════════════════════════════ */

/* ═══ TOKENS ═══ */
:root {
  --bg: #000000;
  --bg-2: #080808;
  --bg-card: rgba(15,15,20,0.6);
  --ink: #ffffff;
  --ink-dim: #a1a1aa;
  --ink-mute: #52525b;
  --line: rgba(255,255,255,0.06);
  --line-2: rgba(255,255,255,0.1);
  --glass: rgba(255,255,255,0.03);
  --glass-2: rgba(255,255,255,0.06);
  --glass-border: rgba(255,255,255,0.08);
  --glass-glow: rgba(139,92,246,0.1);
  --c-blue: #6366f1;
  --c-teal: #00d9ff;
  --c-sky: #38bdf8;
  --c-amber: #f59e0b;
  --c-rose: #ff0000;
  --c-violet: #8b5cf6;
  --c-wa: #25d366;
  --grad: linear-gradient(135deg,#8b5cf6 0%,#6366f1 50%,#06b6d4 100%);
  --grad-warm: linear-gradient(135deg,#ff0000,#f59e0b);
  --grad-soft: linear-gradient(135deg,rgba(139,92,246,.15),rgba(6,184,212,.15));
  --font-en: "Space Grotesk",ui-sans-serif,system-ui,sans-serif;
  --font-ar: "IBM Plex Sans Arabic","Space Grotesk",sans-serif;
  --font-mono: "JetBrains Mono",ui-monospace,monospace;
  --r-sm: 10px; --r-md: 16px; --r-lg: 22px; --r-xl: 28px;
  --pad-x: clamp(20px,5vw,96px);
  --section-y: clamp(80px,12vw,160px);
}

*,*::before,*::after { box-sizing: border-box; }
html { scroll-behavior: smooth; background: #000; }
html,body { margin: 0; padding: 0; min-height: 100%; }
body {
  font-family: var(--font-en);
  background: transparent;
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  line-height: 1.55;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
img,video { max-width: 100%; display: block; }
h1,h2,h3 { font-weight: 600; letter-spacing: -.02em; margin: 0; line-height: 1.08; }

.wrap { max-width: 1320px; margin: 0 auto; padding-left: var(--pad-x); padding-right: var(--pad-x); }
.section { padding-block: var(--section-y); position: relative; }
.gradient-text {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
::selection { background: var(--c-blue); color: #fff; }

/* ═══ NAV ═══ */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  background: rgba(5,5,16,.6);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, background .3s;
}
.nav.scrolled { border-bottom-color: var(--line); background: rgba(5,5,16,.88); }
.nav-inner {
  display: flex; align-items: center; justify-content: space-between; height: 68px;
}
.brand {
  display: flex; align-items: center; gap: 12px;
  font-weight: 600; font-size: 15px;
}
.brand-mark {
  width: 34px; height: 34px; border-radius: 10px;
  background: var(--grad); display: grid; place-items: center;
  box-shadow: 0 0 28px -4px rgba(59,130,246,.5);
}
.nav-links {
  display: flex; align-items: center; gap: 4px;
  list-style: none; padding: 0; margin: 0;
}
.nav-links a {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 14px; border-radius: 999px;
  font-size: 14px; color: var(--ink-dim); transition: color .2s, background .2s;
}
.nav-links a:hover, .nav-links a.active-link { color: var(--ink); background: var(--glass-2); }
.nav-links .num { font: 500 11px/1 var(--font-mono); color: var(--c-teal); opacity: .8; }

.burger {
  display: none; width: 40px; height: 40px; border-radius: 10px;
  border: 1px solid var(--line); background: var(--glass);
  align-items: center; justify-content: center;
}
.burger span {
  display: block; width: 18px; height: 1.5px; background: var(--ink);
  position: relative; transition: transform .25s, opacity .25s;
}
.burger span::before,.burger span::after {
  content: ""; position: absolute; left: 0; right: 0;
  height: 1.5px; background: var(--ink); transition: transform .25s;
}
.burger span::before { transform: translateY(-6px); }
.burger span::after { transform: translateY(6px); }
.nav.open .burger span { background: transparent; }
.nav.open .burger span::before { transform: rotate(45deg); }
.nav.open .burger span::after { transform: rotate(-45deg); }

@media(max-width:880px) {
  .nav-links { display: none; }
  .burger { display: flex; }
  .nav.open .mobile-menu { transform: translateY(0); opacity: 1; pointer-events: auto; }
}
.mobile-menu {
  position: absolute; top: 100%; left: 0; right: 0;
  background: rgba(2,6,23,.98); border-bottom: 1px solid var(--line);
  padding: 24px var(--pad-x) 32px;
  transform: translateY(-12px); opacity: 0; pointer-events: none;
  transition: transform .3s, opacity .3s; backdrop-filter: blur(20px);
}
.mobile-menu ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.mobile-menu a {
  display: flex; justify-content: space-between; align-items: center;
  padding: 16px 20px; border-radius: 14px;
  border: 1px solid var(--line); background: var(--glass);
  font-size: 18px; font-weight: 500;
}

/* ═══ BACKGROUND ═══ */
.bg-fixed {
  position: fixed; inset: 0; z-index: -1; overflow: hidden;
  background:
    radial-gradient(ellipse 75% 55% at 15% 10%,rgba(30,58,138,.15) 0%,transparent 60%),
    radial-gradient(ellipse 65% 55% at 85% 90%,rgba(239,68,68,.08) 0%,transparent 60%),
    var(--bg);
}
.bg-noise {
  position: absolute; inset: 0; opacity: .02; pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}
.aurora { position: absolute; inset: 0; filter: blur(140px); opacity: .8; pointer-events: none; z-index: 0; }
.bg-frosted {
  position: absolute; inset: 0;
  backdrop-filter: blur(80px) saturate(180%);
  -webkit-backdrop-filter: blur(80px) saturate(180%);
  pointer-events: none; z-index: 1;
}
.blob { position: absolute; border-radius: 50%; filter: blur(100px); animation: blobFloat 20s infinite alternate; }
.blob-1 { width: 800px; height: 800px; background: rgba(30,58,138,.4); top: -15%; left: -10%; }
.blob-2 { width: 700px; height: 700px; background: rgba(6,182,212,.45); bottom: -15%; right: -10%; animation-delay: -5s; }
.blob-3 { width: 600px; height: 600px; background: rgba(220,38,38,.3); top: 30%; left: 20%; animation-delay: -10s; }
@keyframes blobFloat {
  0% { transform: translate(0,0) scale(1); }
  50% { transform: translate(80px,40px) scale(1.05); }
  100% { transform: translate(-40px,80px) scale(.95); }
}

/* ═══ CRYSTAL CARD ═══ */
.crystal {
  position: relative;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--r-xl);
  background: linear-gradient(135deg,rgba(255,255,255,.05),rgba(255,255,255,.01));
  backdrop-filter: blur(25px) saturate(200%);
  -webkit-backdrop-filter: blur(25px) saturate(200%);
  overflow: hidden;
  box-shadow: inset 0 0 40px rgba(255,255,255,.02);
  transition: transform .5s cubic-bezier(.2,.8,.2,1), border-color .4s, box-shadow .4s;
}
.crystal:hover {
  border-color: rgba(59,130,246,.25);
  box-shadow: 0 8px 50px -12px rgba(59,130,246,.18), 0 0 80px -20px rgba(20,184,166,.12);
}
.shimmer { position: relative; overflow: hidden; }
.shimmer::after {
  content: ""; position: absolute; top: 0; left: -100%;
  width: 60%; height: 100%;
  background: linear-gradient(100deg,transparent,rgba(255,255,255,.04),transparent);
  animation: shimmerSweep 5s ease-in-out infinite; pointer-events: none;
}
@keyframes shimmerSweep { 0%,100% { left: -100%; } 50% { left: 150%; } }

/* ═══ EYEBROW ═══ */
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font: 500 12px/1 var(--font-mono); letter-spacing: .14em;
  text-transform: uppercase; color: var(--ink-dim);
}
.eyebrow::before {
  content: ""; width: 22px; height: 1px;
  background: var(--c-teal); display: inline-block;
}
.eyebrow .num { color: var(--c-teal); }

/* ═══ FOOTER ═══ */
footer {
  border-top: 1px solid var(--line);
  padding: 32px var(--pad-x);
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px; flex-wrap: wrap;
  color: var(--ink-mute);
  font: 500 12px/1.4 var(--font-mono);
  letter-spacing: .04em;
}

/* ═══ MOBILE PERF ═══ */
@media(max-width:768px) {
  .crystal {
    backdrop-filter: blur(12px) saturate(150%) !important;
    -webkit-backdrop-filter: blur(12px) saturate(150%) !important;
    background: linear-gradient(135deg,rgba(255,255,255,.07),rgba(255,255,255,.025)) !important;
  }
  .shimmer::after { animation: none !important; }
  .blob { filter: blur(50px) !important; width: 280px; height: 280px; opacity: .45; animation-duration: 30s !important; }
  .blob-1 { background: rgba(30,58,138,.55) !important; top: -10% !important; left: -20% !important; }
  .blob-3 { background: rgba(220,38,38,.35) !important; top: 20% !important; right: -20% !important; left: auto !important; }
}