/* =========================================================
   Huzaifa Usman — Coming Soon Portfolio
   Design tokens, layout, components, animations
   ========================================================= */

:root {
  --bg: #05060a;
  --bg-2: #090b13;
  --surface: rgba(255, 255, 255, 0.045);
  --surface-strong: rgba(255, 255, 255, 0.08);
  --border: rgba(255, 255, 255, 0.1);
  --text: #eaf0ff;
  --muted: #9aa6c4;
  --accent: #2ee6a8;
  --accent-2: #4d8bff;
  --accent-3: #a06bff;
  --glow: 0 0 40px rgba(46, 230, 168, 0.22);
  --radius: 18px;
  --maxw: 1120px;
  --font-display: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
  --font-body: "Inter", ui-sans-serif, system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

/* ---------- Background layers (gradient, grid, glow) ---------- */
.bg-layer {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(60rem 40rem at 12% -10%, rgba(77, 139, 255, 0.20), transparent 60%),
    radial-gradient(50rem 36rem at 90% 0%, rgba(160, 107, 255, 0.18), transparent 60%),
    radial-gradient(46rem 34rem at 50% 110%, rgba(46, 230, 168, 0.16), transparent 60%),
    linear-gradient(180deg, var(--bg), var(--bg-2));
  background-size: 200% 200%, 200% 200%, 200% 200%, 100% 100%;
  animation: driftGradient 22s ease-in-out infinite alternate;
}

@keyframes driftGradient {
  0%   { background-position: 0% 0%, 100% 0%, 50% 100%, 0 0; }
  100% { background-position: 30% 20%, 70% 20%, 40% 80%, 0 0; }
}

.grid-layer {
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.045) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(70% 60% at 50% 30%, #000 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(70% 60% at 50% 30%, #000 30%, transparent 100%);
}

/* Mouse-following glow (desktop only, toggled by JS) */
.cursor-glow {
  position: fixed;
  top: 0; left: 0;
  width: 520px; height: 520px;
  margin: -260px 0 0 -260px;
  border-radius: 50%;
  z-index: -1;
  pointer-events: none;
  opacity: 0;
  transition: opacity .4s ease;
  background: radial-gradient(circle, rgba(46,230,168,0.13), rgba(77,139,255,0.08) 40%, transparent 65%);
}
.cursor-glow.is-active { opacity: 1; }

/* Floating particles container */
#particles { position: fixed; inset: 0; z-index: -1; pointer-events: none; }
.particle {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.7);
  box-shadow: 0 0 10px rgba(46,230,168,0.8);
  opacity: .35;
  animation: floatUp linear infinite;
}
@keyframes floatUp {
  from { transform: translate3d(0, 0, 0); opacity: 0; }
  10%  { opacity: .45; }
  90%  { opacity: .35; }
  to   { transform: translate3d(var(--dx, 20px), -110vh, 0); opacity: 0; }
}

/* ---------- Layout ---------- */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
section { padding: 88px 0; }

/* ---------- Header / nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(5, 6, 10, 0.6);
  border-bottom: 1px solid var(--border);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px;
}
.brand {
  font-family: var(--font-display);
  font-weight: 700; letter-spacing: .14em; font-size: .82rem;
  text-transform: uppercase;
  display: inline-flex; align-items: center; gap: 10px;
}
.brand .dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--accent); box-shadow: var(--glow);
}
.nav-links { display: flex; align-items: center; gap: 28px; }
.nav-links a {
  font-size: .9rem; color: var(--muted); position: relative; padding: 4px 0;
  transition: color .25s ease;
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 100%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transform: scaleX(0); transform-origin: right; transition: transform .3s ease;
}
.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { transform: scaleX(1); transform-origin: left; }

.nav-toggle {
  display: none;
  background: transparent; border: 1px solid var(--border);
  border-radius: 12px; padding: 9px 11px; cursor: pointer;
}
.nav-toggle span {
  display: block; width: 20px; height: 2px; margin: 4px 0;
  background: var(--text); border-radius: 2px; transition: transform .3s, opacity .3s;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ---------- Status pill ---------- */
.status {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 8px 16px; border-radius: 999px;
  border: 1px solid var(--border); background: var(--surface);
  font-size: .82rem; color: var(--muted); letter-spacing: .04em;
  backdrop-filter: blur(10px);
}
.status .pulse {
  width: 8px; height: 8px; border-radius: 50%; background: var(--accent);
  box-shadow: 0 0 0 0 rgba(46,230,168,.7);
  animation: pulse 2.2s ease-out infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(46,230,168,.6); }
  70%  { box-shadow: 0 0 0 12px rgba(46,230,168,0); }
  100% { box-shadow: 0 0 0 0 rgba(46,230,168,0); }
}

/* ---------- Hero ---------- */
.hero { text-align: center; padding: 84px 0 64px; }
.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 7vw, 4.6rem);
  line-height: 1.05; margin: 26px 0 14px;
  letter-spacing: -0.02em; font-weight: 700;
}
.hero .role {
  font-size: clamp(.95rem, 2.2vw, 1.12rem);
  color: transparent;
  background: linear-gradient(90deg, var(--accent), var(--accent-2), var(--accent-3), var(--accent));
  background-size: 300% 100%;
  -webkit-background-clip: text; background-clip: text;
  animation: shimmer 8s linear infinite;
  font-weight: 500; letter-spacing: .02em;
}
@keyframes shimmer { to { background-position: 300% 0; } }

.hero .lede {
  max-width: 620px; margin: 18px auto 0;
  color: var(--muted); font-size: 1.02rem;
}

/* Big COMING SOON */
.coming-soon {
  font-family: var(--font-display);
  margin: 52px 0 8px;
  font-size: clamp(2.2rem, 11vw, 7rem);
  font-weight: 700; letter-spacing: .06em; line-height: 1;
  background: linear-gradient(100deg, #ffffff 10%, var(--accent) 40%, var(--accent-2) 60%, #ffffff 90%);
  background-size: 250% 100%;
  -webkit-background-clip: text; background-clip: text; color: transparent;
  animation: shimmer 6s linear infinite;
  text-shadow: 0 0 80px rgba(46,230,168,.14);
}
.coming-soon .char { display: inline-block; }

/* ---------- Countdown ---------- */
.countdown {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px; max-width: 640px; margin: 36px auto 0;
}
.count-card {
  position: relative;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  padding: 20px 10px 14px;
  overflow: hidden;
  transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.count-card::before {
  content: ""; position: absolute; inset: -1px; border-radius: inherit; padding: 1px;
  background: linear-gradient(135deg, rgba(46,230,168,.5), transparent 45%, rgba(77,139,255,.45));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: .55; transition: opacity .3s ease;
}
.count-card:hover { transform: translateY(-4px); box-shadow: 0 18px 50px rgba(0,0,0,.45), var(--glow); }
.count-card:hover::before { opacity: 1; }
.count-value {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 6vw, 2.6rem); font-weight: 700;
  font-variant-numeric: tabular-nums; letter-spacing: .02em;
  display: block;
}
.count-value.tick { animation: tick .45s cubic-bezier(.22,1,.36,1); }
@keyframes tick {
  0% { transform: translateY(-45%) scale(.94); opacity: .25; filter: blur(3px); }
  100% { transform: translateY(0) scale(1); opacity: 1; filter: blur(0); }
}
.count-label {
  display: block; margin-top: 6px;
  font-size: .68rem; letter-spacing: .22em; text-transform: uppercase; color: var(--muted);
}

/* ---------- Section headings ---------- */
.section-head { text-align: center; margin-bottom: 44px; }
.eyebrow {
  font-size: .72rem; letter-spacing: .3em; text-transform: uppercase; color: var(--accent);
}
.section-head h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4vw, 2.3rem); margin: 10px 0 0; font-weight: 700;
  letter-spacing: -0.01em;
}
.section-head p { color: var(--muted); margin: 10px auto 0; max-width: 520px; }

/* ---------- Skills ---------- */
.skills-grid {
  display: grid; gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
}
.skill-card {
  display: flex; align-items: center; gap: 12px;
  padding: 16px 18px; border-radius: 14px;
  border: 1px solid var(--border); background: var(--surface);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  transition: transform .28s ease, background .28s ease, border-color .28s ease, box-shadow .28s ease;
}
.skill-card:hover {
  transform: translateY(-4px);
  background: var(--surface-strong);
  border-color: rgba(46,230,168,.4);
  box-shadow: 0 14px 40px rgba(0,0,0,.4);
}
.skill-card .ico {
  width: 34px; height: 34px; flex: none;
  display: grid; place-items: center; border-radius: 10px;
  background: linear-gradient(140deg, rgba(46,230,168,.18), rgba(77,139,255,.16));
  color: var(--accent);
}
.skill-card .ico svg { width: 18px; height: 18px; }
.skill-card span.name { font-size: .95rem; font-weight: 500; }

/* ---------- CTA ---------- */
.cta {
  position: relative; text-align: center;
  border-radius: 26px; padding: 60px 28px;
  border: 1px solid var(--border);
  background:
    radial-gradient(40rem 20rem at 50% -20%, rgba(46,230,168,.16), transparent 70%),
    var(--surface);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  overflow: hidden;
}
.cta h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 4.4vw, 2.6rem); margin: 0; font-weight: 700; letter-spacing: -0.01em;
}
.cta p { color: var(--muted); margin: 12px 0 26px; }

.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 28px; border-radius: 999px; cursor: pointer;
  font-weight: 600; font-size: .95rem; border: 1px solid transparent;
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  color: #04120d;
  box-shadow: 0 10px 34px rgba(46,230,168,.24);
  transition: transform .25s ease, box-shadow .25s ease, filter .25s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 16px 46px rgba(46,230,168,.36); filter: brightness(1.05); }
.btn:focus-visible, a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent); outline-offset: 3px;
}

/* ---------- Social links ---------- */
.socials { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }
.social {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 13px 22px; border-radius: 999px;
  border: 1px solid var(--border); background: var(--surface);
  color: var(--muted); font-size: .92rem; font-weight: 500;
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  transition: transform .25s ease, color .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.social svg { width: 18px; height: 18px; }
.social:hover {
  color: var(--text); transform: translateY(-3px);
  border-color: rgba(77,139,255,.5);
  box-shadow: 0 12px 34px rgba(0,0,0,.4), 0 0 24px rgba(77,139,255,.18);
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 28px 0; text-align: center;
  color: var(--muted); font-size: .85rem;
}

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0; transform: translateY(22px);
  transition: opacity .7s cubic-bezier(.22,1,.36,1), transform .7s cubic-bezier(.22,1,.36,1);
}
.reveal.is-visible { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  section { padding: 66px 0; }
  .nav-toggle { display: block; }
  .nav-links {
    position: absolute; inset: 68px 16px auto 16px;
    flex-direction: column; align-items: stretch; gap: 4px;
    padding: 12px; border-radius: 16px;
    border: 1px solid var(--border);
    background: rgba(9, 11, 19, 0.94);
    backdrop-filter: blur(16px);
    display: none;
  }
  .nav-links.is-open { display: flex; animation: fadeDown .28s ease; }
  .nav-links a { padding: 10px 8px; font-size: .95rem; }
  @keyframes fadeDown { from { opacity: 0; transform: translateY(-8px); } to { opacity: 1; transform: none; } }
}

@media (max-width: 520px) {
  .countdown { grid-template-columns: repeat(2, 1fr); }
  .cta { padding: 44px 20px; }
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}