/* ═══════════════════════════════════════════════════════
   MD ZAID — Portfolio CSS
   Aesthetic: Minimal Cinematic Luxury — Dark
═══════════════════════════════════════════════════════ */

/* ─── RESET & VARIABLES ──────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  /* Colors */
  --bg:        #080a0e;
  --bg-2:      #0d1117;
  --bg-3:      #111620;
  --surface:   rgba(255,255,255,0.03);
  --surface-2: rgba(255,255,255,0.06);
  --border:    rgba(255,255,255,0.07);
  --border-2:  rgba(255,255,255,0.12);
  --text-1:    #f0f2f5;
  --text-2:    #8b95a6;
  --text-3:    #4a5568;

  /* Accents */
  --blue:      #3b82f6;
  --blue-dim:  rgba(59,130,246,0.15);
  --blue-glow: rgba(59,130,246,0.3);
  --purple:    #8b5cf6;
  --purple-dim:rgba(139,92,246,0.12);
  --cyan:      #06b6d4;
  --warm:      #f59e0b;
  --warm-dim:  rgba(245,158,11,0.12);

  /* Typography */
  --font-display: 'Syne', sans-serif;
  --font-body:    'Outfit', sans-serif;
  --font-mono:    'DM Mono', monospace;

  /* Spacing */
  --container: 1200px;
  --section-gap: 140px;

  /* Radius */
  --r-sm: 8px;
  --r-md: 14px;
  --r-lg: 20px;
  --r-xl: 28px;

  /* Transitions */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  background: var(--bg);
  color: var(--text-1);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--blue-dim); color: var(--blue); }

/* ─── SCROLLBAR ──────────────────────────────────────── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--bg-3); border-radius: 4px; }

/* ─── NOISE OVERLAY ──────────────────────────────────── */
.noise-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1000;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ─── CUSTOM CURSOR ──────────────────────────────────── */
.cursor-dot, .cursor-ring {
  position: fixed;
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition: opacity 0.3s;
}
.cursor-dot {
  width: 6px; height: 6px;
  background: var(--blue);
  top: 0; left: 0;
}
.cursor-ring {
  width: 36px; height: 36px;
  border: 1px solid rgba(59,130,246,0.4);
  top: 0; left: 0;
  transition: width 0.25s var(--ease), height 0.25s var(--ease), border-color 0.25s;
}
.cursor-ring.hovered {
  width: 56px; height: 56px;
  border-color: var(--blue);
  background: rgba(59,130,246,0.05);
}
@media (hover: none) { .cursor-dot, .cursor-ring { display: none; } }

/* ─── LOADER ─────────────────────────────────────────── */
.loader {
  position: fixed;
  inset: 0;
  background: var(--bg);
  z-index: 9998;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s var(--ease), visibility 0.6s;
}
.loader.done { opacity: 0; visibility: hidden; }

.loader-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}
.loader-line {
  width: 200px;
  height: 1px;
  background: var(--bg-3);
  position: relative;
  overflow: hidden;
}
.loader-line::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, var(--blue), transparent);
  transform: translateX(-100%);
  animation: loaderSlide 1.2s var(--ease) forwards;
}
@keyframes loaderSlide {
  to { transform: translateX(100%); }
}
.loader-text {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-3);
  letter-spacing: 0.15em;
}

/* ─── NAVIGATION ─────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 900;
  padding: 0 40px;
  height: 72px;
  display: flex;
  align-items: center;
  transition: background 0.4s var(--ease), border-color 0.4s;
}
.nav.scrolled {
  background: rgba(8,10,14,0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 40px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-1);
  margin-right: auto;
}
.logo-mark {
  width: 32px; height: 32px;
  background: var(--blue);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16px;
  color: #fff;
  flex-shrink: 0;
}
.logo-text {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15px;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-link {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--text-2);
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: color 0.2s;
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0; right: 0;
  height: 1px;
  background: var(--blue);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}
.nav-link:hover { color: var(--text-1); }
.nav-link:hover::after { transform: scaleX(1); }

.nav-cta {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  background: var(--surface-2);
  border: 1px solid var(--border-2);
  border-radius: var(--r-sm);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-1);
  text-decoration: none;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
  white-space: nowrap;
}
.nav-cta:hover {
  background: var(--blue-dim);
  border-color: var(--blue);
  color: var(--blue);
}
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}
.nav-hamburger span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--text-1);
  transition: all 0.3s var(--ease);
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile Menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  background: rgba(8,10,14,0.97);
  backdrop-filter: blur(20px);
  z-index: 850;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 40px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s var(--ease), visibility 0.4s;
}
.mobile-menu.open { opacity: 1; visibility: visible; }
.mobile-link {
  font-family: var(--font-display);
  font-size: clamp(28px, 8vw, 48px);
  font-weight: 700;
  color: var(--text-1);
  text-decoration: none;
  transition: color 0.2s;
}
.mobile-link:hover { color: var(--blue); }

/* ─── CONTAINER ──────────────────────────────────────── */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 40px;
}

/* ─── SECTIONS ───────────────────────────────────────── */
.section { padding: var(--section-gap) 0; position: relative; }

.section-label {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 48px;
}
.label-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--blue);
  letter-spacing: 0.1em;
}
.label-text {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-3);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.label-text::before {
  content: '—';
  margin-right: 8px;
  opacity: 0.4;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(36px, 5vw, 60px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--text-1);
  margin-bottom: 64px;
}
.section-title em {
  font-style: italic;
  color: var(--blue);
  font-weight: 600;
}

/* ─── GLASS CARD ─────────────────────────────────────── */
.glass-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  backdrop-filter: blur(12px);
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s, transform 0.3s var(--ease);
}
.glass-card:hover {
  border-color: var(--border-2);
}

/* ─── HERO ───────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

/* BG image */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-img-wrap {
  position: absolute;
  right: -5%;
  top: 0;
  bottom: 0;
  width: 55%;
}
.hero-photo {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  filter: grayscale(20%) brightness(0.45) contrast(1.1);
  mask-image: linear-gradient(
    to left,
    rgba(0,0,0,0.7) 0%,
    rgba(0,0,0,0.4) 40%,
    transparent 75%
  );
  -webkit-mask-image: linear-gradient(
    to left,
    rgba(0,0,0,0.7) 0%,
    rgba(0,0,0,0.4) 40%,
    transparent 75%
  );
}
.hero-img-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    var(--bg) 0%,
    rgba(8,10,14,0.85) 35%,
    rgba(8,10,14,0.2) 65%,
    rgba(8,10,14,0.6) 100%
  );
}

/* Orbs */
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
}
.orb-1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(59,130,246,0.12) 0%, transparent 70%);
  top: -100px; right: 200px;
  animation: orbFloat 8s ease-in-out infinite;
}
.orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(139,92,246,0.08) 0%, transparent 70%);
  bottom: -50px; right: 0;
  animation: orbFloat 10s ease-in-out infinite reverse;
}
.orb-3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(6,182,212,0.06) 0%, transparent 70%);
  top: 40%;
  left: 35%;
  animation: orbFloat 12s ease-in-out infinite 2s;
}
@keyframes orbFloat {
  0%,100% { transform: translate(0,0) scale(1); }
  50%      { transform: translate(20px, -30px) scale(1.05); }
}

/* Grid lines */
.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse 80% 80% at 20% 50%, black 0%, transparent 80%);
  pointer-events: none;
}

/* Content */
.hero-content {
  position: relative;
  z-index: 2;
  padding: 0 40px;
  max-width: var(--container);
  margin: 0 auto;
  width: 100%;
  padding-top: 80px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px 6px 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-2);
  margin-bottom: 40px;
}
.badge-dot {
  width: 7px; height: 7px;
  background: #22c55e;
  border-radius: 50%;
  box-shadow: 0 0 8px rgba(34,197,94,0.6);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%,100% { box-shadow: 0 0 8px rgba(34,197,94,0.6); }
  50%      { box-shadow: 0 0 16px rgba(34,197,94,0.9); }
}

/* Title */
.hero-title {
  font-family: var(--font-display);
  font-size: clamp(64px, 9vw, 120px);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.03em;
  color: var(--text-1);
  margin-bottom: 28px;
}
.line-wrap { display: block; overflow: hidden; }
.line { display: block; }
.accent-line {
  background: linear-gradient(135deg, var(--blue) 0%, var(--purple) 60%, var(--cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: clamp(15px, 1.8vw, 18px);
  color: var(--text-2);
  max-width: 460px;
  margin-bottom: 40px;
  line-height: 1.7;
  font-weight: 400;
}

/* Actions */
.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 64px;
  flex-wrap: wrap;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 24px;
  background: var(--blue);
  border-radius: var(--r-sm);
  font-size: 14px;
  font-weight: 600;
  color: #fff;
  text-decoration: none;
  transition: background 0.2s, transform 0.2s var(--ease), box-shadow 0.2s;
  white-space: nowrap;
}
.btn-primary:hover {
  background: #2563eb;
  box-shadow: 0 8px 32px rgba(59,130,246,0.4);
  transform: translateY(-1px);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 24px;
  background: var(--surface);
  border: 1px solid var(--border-2);
  border-radius: var(--r-sm);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-1);
  text-decoration: none;
  transition: background 0.2s, border-color 0.2s;
}
.btn-ghost:hover {
  background: var(--surface-2);
  border-color: rgba(255,255,255,0.2);
}

/* Stats */
.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}
.stat {
  display: flex;
  flex-direction: column;
  gap: 3px;
}
.stat-num {
  font-family: var(--font-display);
  font-size: 32px;
  font-weight: 800;
  color: var(--text-1);
  letter-spacing: -0.02em;
  line-height: 1;
}
.stat-unit {
  font-family: var(--font-display);
  font-size: 20px;
  color: var(--blue);
  font-weight: 700;
}
.stat-label {
  font-size: 12px;
  color: var(--text-3);
  letter-spacing: 0.04em;
}
.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--border);
}

/* Scroll hint */
.scroll-hint {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 2;
}
.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--text-3), transparent);
  animation: scrollAnim 2s ease-in-out infinite;
}
@keyframes scrollAnim {
  0% { opacity: 0; transform: scaleY(0); transform-origin: top; }
  50% { opacity: 1; transform: scaleY(1); }
  100% { opacity: 0; transform: scaleY(0); transform-origin: bottom; }
}
.scroll-hint span {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-3);
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

/* ─── ABOUT ──────────────────────────────────────────── */
.about { background: linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}
.about-left .section-title { margin-bottom: 0; }
.about-body {
  font-size: 16px;
  color: var(--text-2);
  line-height: 1.8;
  margin-bottom: 24px;
}
.about-body:last-of-type { margin-bottom: 36px; }

.about-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.social-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-2);
  text-decoration: none;
  transition: all 0.2s;
}
.social-chip:hover {
  background: var(--blue-dim);
  border-color: var(--blue);
  color: var(--blue);
}

/* ─── EXPERIENCE ─────────────────────────────────────── */
.experience { background: var(--bg-2); }

.timeline {
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.timeline-item {
  display: grid;
  grid-template-columns: 200px 1fr;
  gap: 32px;
  align-items: start;
}
.timeline-meta {
  padding-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.timeline-period {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-3);
  letter-spacing: 0.06em;
}
.timeline-type {
  font-size: 11px;
  color: var(--text-3);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.timeline-card { padding: 28px 32px; }
.timeline-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, rgba(59,130,246,0.03) 0%, transparent 60%);
  pointer-events: none;
}

.card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}
.card-title {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: 4px;
}
.card-company {
  font-size: 14px;
  color: var(--blue);
  font-weight: 500;
}
.card-loc { color: var(--text-3); }
.card-badge {
  padding: 4px 12px;
  background: var(--blue-dim);
  border: 1px solid rgba(59,130,246,0.2);
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--blue);
  white-space: nowrap;
  flex-shrink: 0;
}
.edu-badge {
  background: var(--purple-dim);
  border-color: rgba(139,92,246,0.2);
  color: var(--purple);
}

.card-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
}
.card-bullets li {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.7;
  padding-left: 18px;
  position: relative;
}
.card-bullets li::before {
  content: '–';
  position: absolute;
  left: 0;
  color: var(--blue);
  font-weight: 600;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}
.card-tags span {
  padding: 4px 10px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-3);
}

.card-coursework {
  font-size: 13px;
  color: var(--text-3);
  line-height: 1.7;
  font-style: italic;
}

/* ─── SKILLS ─────────────────────────────────────────── */
.skills { background: var(--bg); }

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 20px;
}
.skill-group {
  padding: 24px 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  transition: border-color 0.3s, background 0.3s;
}
.skill-group:hover {
  background: var(--surface-2);
  border-color: var(--border-2);
}
.skill-group-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-2);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}
.skill-group-icon {
  width: 30px; height: 30px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-3);
}
.skill-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.chip {
  padding: 5px 12px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 12.5px;
  font-weight: 500;
  color: var(--text-2);
  cursor: default;
  transition: all 0.2s var(--ease);
}
.chip:hover {
  background: var(--blue-dim);
  border-color: var(--blue);
  color: var(--blue);
  transform: translateY(-2px);
}
.chip-accent {
  background: var(--blue-dim);
  border-color: rgba(59,130,246,0.25);
  color: #93c5fd;
}
.chip-warm {
  background: var(--warm-dim);
  border-color: rgba(245,158,11,0.25);
  color: #fcd34d;
}
.chip-warm:hover {
  background: rgba(245,158,11,0.2);
  border-color: var(--warm);
  color: var(--warm);
}

/* ─── PROJECTS ───────────────────────────────────────── */
.projects { background: var(--bg-2); }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.project-card {
  padding: 28px;
  cursor: default;
  transition: transform 0.2s var(--ease), border-color 0.3s;
}
.project-card:hover { border-color: var(--border-2); }

.project-featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 32px;
  align-items: start;
  padding: 36px 40px;
}
.project-featured .project-body { grid-column: 1; }
.project-featured .project-stack { grid-column: 1 / -1; margin-top: 0; }

.project-glow {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--blue-glow), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}
.project-card:hover .project-glow { opacity: 1; }

.project-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.project-num {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-3);
  letter-spacing: 0.1em;
}
.project-links { display: flex; gap: 10px; }
.project-link {
  width: 34px; height: 34px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-3);
  transition: all 0.2s;
  text-decoration: none;
}
.project-link:hover {
  background: var(--blue-dim);
  border-color: var(--blue);
  color: var(--blue);
}
.project-tag-row {
  display: flex;
  gap: 8px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.project-tag {
  padding: 3px 10px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  color: var(--text-3);
}
.featured-tag {
  background: var(--blue-dim);
  border-color: rgba(59,130,246,0.3);
  color: var(--blue);
}
.chip-warm-tag {
  background: var(--warm-dim);
  border-color: rgba(245,158,11,0.3);
  color: var(--warm);
}

.project-title {
  font-family: var(--font-display);
  font-size: 20px;
  font-weight: 700;
  color: var(--text-1);
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}
.project-desc {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.75;
  margin-bottom: 20px;
}

.project-metrics {
  display: flex;
  gap: 24px;
  margin-bottom: 24px;
}
.metric {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.metric-val {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
  color: var(--blue);
  letter-spacing: -0.02em;
}
.metric-label {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--text-3);
  letter-spacing: 0.06em;
}

.project-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  padding-top: 20px;
  border-top: 1px solid var(--border);
}
.project-stack span {
  padding: 4px 10px;
  background: var(--surface-2);
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-3);
}

/* ─── ACHIEVEMENTS ───────────────────────────────────── */
.achievements { background: var(--bg); }

.achievements-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}
.achievement-card {
  padding: 28px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
  transition: border-color 0.3s, transform 0.3s var(--ease);
}
.achievement-card:hover {
  border-color: var(--border-2);
  transform: translateY(-4px);
}
.ach-icon {
  width: 44px; height: 44px;
  background: var(--blue-dim);
  border: 1px solid rgba(59,130,246,0.2);
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue);
  flex-shrink: 0;
}
.ach-content { display: flex; flex-direction: column; gap: 4px; }
.ach-num {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 800;
  color: var(--text-1);
  letter-spacing: -0.02em;
}
.ach-title {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-2);
}
.ach-desc {
  font-size: 13px;
  color: var(--text-3);
  line-height: 1.65;
  margin-top: 4px;
}

/* ─── CONTACT ────────────────────────────────────────── */
.contact { background: var(--bg-2); }

.contact-inner {
  padding: 72px 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.contact-glow-large {
  position: absolute;
  width: 600px;
  height: 300px;
  background: radial-gradient(ellipse, rgba(59,130,246,0.08) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}
.contact-inner .section-label {
  justify-content: center;
  margin-bottom: 28px;
}
.contact-title {
  font-family: var(--font-display);
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 800;
  color: var(--text-1);
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 20px;
}
.contact-sub {
  font-size: 16px;
  color: var(--text-2);
  max-width: 500px;
  margin: 0 auto 40px;
  line-height: 1.75;
}
.contact-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}
.contact-socials {
  display: flex;
  gap: 10px;
}
.icon-btn {
  width: 44px; height: 44px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-2);
  text-decoration: none;
  transition: all 0.2s;
}
.icon-btn:hover {
  background: var(--blue-dim);
  border-color: var(--blue);
  color: var(--blue);
}
.contact-location {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-3);
}

/* ─── FOOTER ─────────────────────────────────────────── */
.footer {
  padding: 28px 0;
  border-top: 1px solid var(--border);
  background: var(--bg);
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.footer-logo {
  font-family: var(--font-display);
  font-size: 15px;
  font-weight: 700;
  color: var(--text-2);
}
.footer-copy {
  font-size: 13px;
  color: var(--text-3);
}
.footer-mono {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-3);
  letter-spacing: 0.08em;
}

/* ─── ANIMATIONS ─────────────────────────────────────── */

/* Reveal from below */
.reveal-up {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
  transition-delay: var(--d, 0s);
}
.reveal-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Reveal fade */
.reveal-fade {
  opacity: 0;
  transition: opacity 0.8s var(--ease);
  transition-delay: var(--d, 0s);
}
.reveal-fade.visible {
  opacity: 1;
}

/* Tilt card */
.tilt-card {
  transform-style: preserve-3d;
  transform: perspective(1000px) rotateX(0deg) rotateY(0deg);
}

/* ─── RESPONSIVE ─────────────────────────────────────── */
@media (max-width: 1024px) {
  .hero-img-wrap { width: 65%; right: -10%; }
  .timeline-item { grid-template-columns: 160px 1fr; gap: 24px; }
  .project-featured { grid-template-columns: 1fr; }
}

@media (max-width: 860px) {
  :root { --section-gap: 90px; }

  .nav { padding: 0 24px; }
  .nav-links, .nav-cta { display: none; }
  .nav-hamburger { display: flex; }

  .hero-img-wrap { width: 100%; right: 0; opacity: 0.4; }
  .hero-photo {
    mask-image: linear-gradient(to bottom, black 40%, transparent 100%);
    -webkit-mask-image: linear-gradient(to bottom, black 40%, transparent 100%);
  }
  .hero-content { padding: 0 24px; }
  .hero-title { font-size: clamp(52px, 12vw, 80px); }
  .hero-stats { gap: 20px; }

  .container { padding: 0 24px; }

  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .about-left .section-title { font-size: clamp(32px, 8vw, 48px); }

  .timeline-item { grid-template-columns: 1fr; gap: 8px; }
  .timeline-meta { padding-top: 0; flex-direction: row; align-items: center; gap: 12px; }
  .timeline-card { padding: 20px; }

  .projects-grid { grid-template-columns: 1fr; }
  .project-featured { grid-column: 1; padding: 24px; }

  .contact-inner { padding: 48px 32px; }

  .footer-inner { flex-direction: column; text-align: center; gap: 8px; }
}

@media (max-width: 480px) {
  .hero-title { font-size: clamp(42px, 14vw, 64px); }
  .hero-badge { font-size: 11px; }
  .hero-sub { font-size: 14px; }
  .hero-actions { flex-direction: column; align-items: flex-start; }
  .stat-divider { display: none; }
  .hero-stats { flex-direction: column; gap: 16px; }
  .skills-grid { grid-template-columns: 1fr; }
  .achievements-grid { grid-template-columns: 1fr; }
  .section-title { font-size: clamp(28px, 9vw, 40px); }
  .contact-inner { padding: 36px 20px; }
  .contact-title { font-size: clamp(26px, 8vw, 40px); }
}