/* ===========================================================
   Rayyan Azeem Syed — Portfolio
   Classic, elegant: ivory · charcoal · gold
   =========================================================== */

:root {
  --ivory: #faf7f0;
  --ivory-2: #f3eee2;
  --char: #262421;
  --char-soft: #57534c;
  --gold: #b8924d;
  --gold-soft: #d6bb86;
  --navy: #14181f;
  --navy-2: #1b2129;
  --line: #e4ddcd;
  --serif: "Cormorant Garamond", Georgia, serif;
  --sans: "Inter", -apple-system, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  background: var(--ivory);
  color: var(--char);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
em { font-style: italic; }
.gold { color: var(--gold); }

/* ---------- Reveal animation ---------- */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s cubic-bezier(.22,.61,.36,1), transform 0.9s cubic-bezier(.22,.61,.36,1);
}
.reveal.in { opacity: 1; transform: none; }

/* ---------- Nav ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 48px;
  transition: background 0.4s ease, box-shadow 0.4s ease, padding 0.4s ease;
}
.nav.scrolled {
  background: rgba(250, 247, 240, 0.92);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--line);
  padding: 14px 48px;
}
.nav.scrolled .nav-brand, .nav.scrolled .nav-links a { color: var(--char); }
.nav-brand {
  font-family: var(--serif);
  font-size: 26px;
  font-weight: 700;
  letter-spacing: 2px;
  color: #fff;
}
.nav-links { display: flex; gap: 34px; list-style: none; }
.nav-links a {
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 1.8px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.85);
  position: relative;
  transition: color 0.3s;
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -5px;
  width: 0; height: 1px;
  background: var(--gold);
  transition: width 0.35s ease;
}
.nav-links a:hover::after { width: 100%; }
.nav-links a:hover { color: var(--gold); }
.nav-resume {
  font-size: 12px;
  letter-spacing: 1.8px;
  text-transform: uppercase;
  color: var(--gold);
  border: 1px solid var(--gold);
  padding: 9px 22px;
  transition: background 0.3s, color 0.3s;
}
.nav-resume:hover { background: var(--gold); color: #fff; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(ellipse at 30% 20%, #232b37 0%, var(--navy) 55%),
    var(--navy);
  overflow: hidden;
}
#scene { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-inner {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: 0 24px;
  max-width: 880px;
}
.hero-eyebrow {
  font-size: 13px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--gold-soft);
  margin-bottom: 26px;
}
.hero-name {
  font-family: var(--serif);
  font-size: clamp(52px, 9vw, 96px);
  font-weight: 600;
  line-height: 1.05;
  color: #f5f1e8;
}
.hero-name em { color: var(--gold-soft); }
.hero-rule {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  color: var(--gold);
  margin: 30px auto;
  font-size: 13px;
}
.hero-rule span { width: 90px; height: 1px; background: linear-gradient(90deg, transparent, var(--gold)); }
.hero-rule span:last-child { background: linear-gradient(270deg, transparent, var(--gold)); }
.hero-tag {
  font-size: 17px;
  font-weight: 300;
  color: rgba(245,241,232,0.78);
  max-width: 560px;
  margin: 0 auto 42px;
}
.hero-cta { display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; }
.btn {
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  padding: 15px 38px;
  transition: all 0.35s ease;
}
.btn-gold { background: var(--gold); color: #fff; }
.btn-gold:hover { background: #a37e3c; transform: translateY(-2px); box-shadow: 0 12px 28px rgba(184,146,77,0.35); }
.btn-ghost { border: 1px solid rgba(245,241,232,0.35); color: #f5f1e8; }
.btn-ghost:hover { border-color: var(--gold); color: var(--gold-soft); transform: translateY(-2px); }

.hero-scroll {
  position: absolute;
  bottom: 34px; left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  width: 26px; height: 44px;
  border: 1px solid rgba(245,241,232,0.35);
  border-radius: 14px;
}
.hero-scroll span {
  position: absolute;
  top: 8px; left: 50%;
  width: 3px; height: 8px;
  margin-left: -1.5px;
  background: var(--gold);
  border-radius: 2px;
  animation: drop 1.8s infinite ease-in-out;
}
@keyframes drop { 0%{opacity:0;transform:translateY(0)} 35%{opacity:1} 100%{opacity:0;transform:translateY(16px)} }

/* ---------- Sections ---------- */
.section { padding: 110px 0; position: relative; }
.section-alt { background: var(--ivory-2); }
.container { max-width: 1080px; margin: 0 auto; padding: 0 32px; }
.kicker {
  font-size: 12px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 14px;
}
.title {
  font-family: var(--serif);
  font-size: clamp(34px, 5vw, 52px);
  font-weight: 600;
  line-height: 1.15;
  margin-bottom: 54px;
}
.title em { color: var(--gold); }

/* ---------- About ---------- */
.about-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 64px; align-items: start; }
.about-text p { margin-bottom: 18px; color: var(--char-soft); font-weight: 300; font-size: 16.5px; }
.about-text strong { color: var(--char); font-weight: 600; }
.about-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 26px; }
.stat {
  border-top: 1px solid var(--gold-soft);
  padding-top: 16px;
}
.stat-num, .stat-unit {
  font-family: var(--serif);
  font-size: 46px;
  font-weight: 600;
  color: var(--char);
  line-height: 1;
}
.stat-unit { color: var(--gold); font-size: 30px; }
.stat p { font-size: 12.5px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--char-soft); margin-top: 6px; }

/* ---------- Timeline ---------- */
.timeline { position: relative; padding-left: 42px; }
.timeline::before {
  content: "";
  position: absolute;
  left: 8px; top: 6px; bottom: 6px;
  width: 1px;
  background: linear-gradient(var(--gold-soft), var(--line));
}
.t-item { position: relative; padding-bottom: 52px; }
.t-item:last-child { padding-bottom: 0; }
.t-dot {
  position: absolute;
  left: -42px; top: 7px;
  width: 17px; height: 17px;
  border-radius: 50%;
  border: 1px solid var(--gold);
  background: var(--ivory-2);
}
.t-dot::after {
  content: "";
  position: absolute;
  inset: 4px;
  border-radius: 50%;
  background: var(--gold);
}
.t-date { font-size: 12px; letter-spacing: 2.5px; text-transform: uppercase; color: var(--gold); margin-bottom: 6px; }
.t-role { font-family: var(--serif); font-size: 27px; font-weight: 600; }
.t-org { font-size: 14px; font-weight: 500; color: var(--char-soft); letter-spacing: 0.5px; margin-bottom: 10px; }
.t-desc { color: var(--char-soft); font-weight: 300; max-width: 660px; }

/* ---------- Projects ---------- */
.projects { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.card {
  background: #fff;
  border: 1px solid var(--line);
  padding: 34px 30px;
  transition: transform 0.45s cubic-bezier(.22,.61,.36,1), box-shadow 0.45s ease;
  transform-style: preserve-3d;
  will-change: transform;
}
.card:hover { box-shadow: 0 24px 60px rgba(38,36,33,0.12); }
.card-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 22px; }
.card-no { font-family: var(--serif); font-size: 30px; color: var(--gold-soft); font-style: italic; }
.card-badge {
  font-size: 10.5px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--gold);
  border: 1px solid var(--gold-soft);
  padding: 4px 12px;
  border-radius: 20px;
}
.card-name { font-family: var(--serif); font-size: 24px; font-weight: 600; line-height: 1.2; margin-bottom: 14px; }
.card-desc { font-size: 14px; font-weight: 300; color: var(--char-soft); margin-bottom: 20px; }
.card-desc strong { color: var(--char); font-weight: 600; }
.card-stack {
  font-size: 11.5px;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--gold);
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

/* ---------- Skills ---------- */
.skills { display: grid; grid-template-columns: repeat(4, 1fr); gap: 38px; }
.skill-col h4 {
  font-family: var(--serif);
  font-size: 21px;
  font-weight: 600;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--gold-soft);
}
.skill-col ul { list-style: none; }
.skill-col li {
  font-size: 14px;
  font-weight: 300;
  color: var(--char-soft);
  padding: 6px 0;
  border-bottom: 1px dashed var(--line);
  transition: color 0.3s, padding-left 0.3s;
}
.skill-col li:hover { color: var(--gold); padding-left: 6px; }

/* ---------- Education ---------- */
.edu-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; margin-bottom: 44px; }
.edu-card {
  border: 1px solid var(--line);
  background: #fff;
  padding: 30px 28px;
  transition: border-color 0.35s, transform 0.35s;
}
.edu-card:hover { border-color: var(--gold-soft); transform: translateY(-4px); }
.edu-card h4 { font-family: var(--serif); font-size: 21px; font-weight: 600; margin-bottom: 6px; }
.edu-card p { font-size: 14px; font-weight: 300; color: var(--char-soft); }
.edu-meta { color: var(--gold) !important; font-weight: 500 !important; letter-spacing: 1px; margin-top: 8px; font-size: 12.5px !important; }
.honours { list-style: none; display: flex; flex-wrap: wrap; gap: 12px 28px; }
.honours li {
  font-size: 13.5px;
  font-weight: 300;
  color: var(--char-soft);
}
.honours li::before { content: "✦ "; color: var(--gold); }

/* ---------- Contact ---------- */
.section-dark {
  background: var(--navy);
  color: #f5f1e8;
  padding-bottom: 0;
  overflow: hidden;
}
#scene2 { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0.5; }
.contact-inner { position: relative; z-index: 2; text-align: center; padding-bottom: 110px; }
.section-dark .title { color: #f5f1e8; }
.contact-mail {
  display: inline-block;
  font-family: var(--serif);
  font-size: clamp(24px, 4vw, 40px);
  font-style: italic;
  color: var(--gold-soft);
  border-bottom: 1px solid var(--gold);
  padding-bottom: 6px;
  margin-bottom: 22px;
  transition: color 0.3s, border-color 0.3s;
}
.contact-mail:hover { color: #fff; }
.contact-phone { font-weight: 300; color: rgba(245,241,232,0.65); margin-bottom: 34px; }
.contact-links { display: flex; gap: 18px; justify-content: center; flex-wrap: wrap; }
.contact-links a {
  font-size: 13px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(245,241,232,0.8);
  transition: color 0.3s;
}
.contact-links a:hover { color: var(--gold-soft); }
.contact-links span { color: var(--gold); }
.footer {
  position: relative;
  z-index: 2;
  border-top: 1px solid rgba(245,241,232,0.12);
  padding: 26px 0;
  text-align: center;
}
.footer p { font-size: 12.5px; font-weight: 300; color: rgba(245,241,232,0.45); letter-spacing: 1px; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .nav { padding: 16px 22px; }
  .nav-links { display: none; }
  .about-grid { grid-template-columns: 1fr; gap: 44px; }
  .projects { grid-template-columns: 1fr; }
  .skills { grid-template-columns: 1fr 1fr; gap: 30px; }
  .edu-grid { grid-template-columns: 1fr; }
  .section { padding: 80px 0; }
}
@media (max-width: 520px) {
  .skills { grid-template-columns: 1fr; }
  .about-stats { grid-template-columns: 1fr 1fr; }
}