/* ============================================================
   PORTFOLIO — Md. Afraim Bin Zahangir
   Theme: Dark Glassmorphism / Cyber-Elegant
   ============================================================ */

/* ── Fonts ────────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;500;600;700;800&family=DM+Sans:ital,wght@0,300;0,400;0,500;1,300&family=JetBrains+Mono:wght@400;500&display=swap');

/* ── Variables ────────────────────────────────────────────── */
:root {
  --bg:         #070b14;
  --bg2:        #0d1120;
  --bg3:        #111828;
  --glass:      rgba(255,255,255,0.04);
  --glass-h:    rgba(255,255,255,0.07);
  --border:     rgba(255,255,255,0.08);
  --border-h:   rgba(99,179,244,0.35);

  --accent:     #63b3f4;     /* electric blue */
  --accent2:    #a78bfa;     /* violet */
  --accent3:    #34d399;     /* emerald */
  --glow:       rgba(99,179,244,0.18);

  --text:       #e8edf5;
  --text-muted: #7a8ba3;
  --text-dim:   #3d5069;

  --ff-head:    'Syne', sans-serif;
  --ff-body:    'DM Sans', sans-serif;
  --ff-mono:    'JetBrains Mono', monospace;

  --nav-h:      68px;
  --radius:     14px;
  --radius-lg:  22px;
  --transition: 0.28s cubic-bezier(0.4,0,0.2,1);
}

/* ── Reset ────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--ff-body);
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; transition: color var(--transition); }
a:hover { color: #93c5fd; }
ul { list-style: none; }

/* ── Cursor glow ──────────────────────────────────────────── */
#cursor-glow {
  position: fixed;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(99,179,244,0.07) 0%, transparent 70%);
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 0;
  transition: opacity 0.3s;
}

/* ── Scrollbar ────────────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--accent2); border-radius: 3px; }

/* ── Background grid ──────────────────────────────────────── */
body::before {
  content: '';
  position: fixed; inset: 0;
  background-image:
    linear-gradient(rgba(99,179,244,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99,179,244,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

/* ── Section base ─────────────────────────────────────────── */
section { position: relative; z-index: 1; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* ── Section header ───────────────────────────────────────── */
.section-label {
  font-family: var(--ff-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 10px;
  display: block;
}
.section-title {
  font-family: var(--ff-head);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 12px;
}
.section-title span { color: var(--accent); }
.section-desc { color: var(--text-muted); max-width: 560px; }
.section-header { margin-bottom: 56px; }
.section-pad { padding: 110px 0; }

/* ── Reveal animation ─────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}
.reveal.revealed { opacity: 1; transform: none; }
.reveal-d1 { transition-delay: 0.1s; }
.reveal-d2 { transition-delay: 0.2s; }
.reveal-d3 { transition-delay: 0.3s; }
.reveal-d4 { transition-delay: 0.4s; }

/* ══════════════════════════════════════════
   NAVIGATION
══════════════════════════════════════════ */
#main-nav {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 900;
  height: var(--nav-h);
  transition: background var(--transition), border-color var(--transition);
  border-bottom: 1px solid transparent;
}
#main-nav.nav--scrolled {
  background: rgba(7,11,20,0.88);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom-color: var(--border);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: var(--nav-h);
}
.nav-logo {
  font-family: var(--ff-head);
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.02em;
}
.nav-logo span { color: var(--accent); }
.nav-links { display: flex; gap: 32px; align-items: center; }
.nav-link {
  font-size: 0.88rem;
  font-weight: 400;
  color: var(--text-muted);
  letter-spacing: 0.02em;
  transition: color var(--transition);
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute; bottom: -3px; left: 0; right: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform var(--transition);
  transform-origin: left;
}
.nav-link:hover, .nav-link.active { color: var(--text); }
.nav-link:hover::after, .nav-link.active::after { transform: scaleX(1); }
.nav-cta {
  background: var(--accent);
  color: var(--bg) !important;
  padding: 8px 20px;
  border-radius: 50px;
  font-weight: 500;
  font-size: 0.84rem;
  transition: background var(--transition), transform var(--transition);
}
.nav-cta:hover { background: #93c5fd; transform: translateY(-1px); }
.nav-cta::after { display: none !important; }

/* Mobile nav */
#menu-btn {
  display: none;
  flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
#menu-btn span {
  display: block; width: 24px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--transition);
}
#mobile-menu {
  display: none;
  position: fixed; top: var(--nav-h); left: 0; right: 0;
  background: rgba(7,11,20,0.97);
  backdrop-filter: blur(20px);
  padding: 24px;
  border-bottom: 1px solid var(--border);
  z-index: 899;
}
#mobile-menu.open { display: flex; flex-direction: column; gap: 16px; }
.mobile-nav-link { font-size: 1.1rem; color: var(--text-muted); }
.mobile-nav-link:hover { color: var(--accent); }

@media (max-width: 768px) {
  .nav-links { display: none; }
  #menu-btn { display: flex; }
}

/* ══════════════════════════════════════════
   HERO
══════════════════════════════════════════ */
#hero {
  min-height: 100vh;
  display: flex; align-items: center;
  padding: calc(var(--nav-h) + 40px) 0 80px;
  position: relative; overflow: hidden;
}
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}
.orb-1 { width: 520px; height: 520px; background: rgba(99,179,244,0.10); top: -80px; right: -120px; }
.orb-2 { width: 380px; height: 380px; background: rgba(167,139,250,0.10); bottom: 0; left: -80px; }
.orb-3 { width: 280px; height: 280px; background: rgba(52,211,153,0.07); top: 40%; left: 50%; }

.hero-inner {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 60px;
  align-items: center;
  position: relative; z-index: 1;
  width: 100%;
}
.hero-eyebrow {
  font-family: var(--ff-mono);
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 16px;
  display: flex; align-items: center; gap: 10px;
}
.hero-eyebrow::before {
  content: '';
  display: block; width: 32px; height: 1px;
  background: var(--accent);
}
.hero-name {
  font-family: var(--ff-head);
  font-size: clamp(2.8rem, 6.5vw, 5rem);
  font-weight: 800;
  line-height: 1.07;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}
.hero-name .first { color: var(--text); }
.hero-name .last {
  color: transparent;
  -webkit-text-stroke: 1.5px var(--accent);
}
.hero-typed {
  font-family: var(--ff-mono);
  font-size: 1.05rem;
  color: var(--accent2);
  margin-bottom: 24px;
  min-height: 1.6em;
}
.hero-typed::after {
  content: '|';
  animation: blink 0.9s step-end infinite;
  color: var(--accent);
}
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0; } }
.hero-desc {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 500px;
  margin-bottom: 36px;
  line-height: 1.8;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.btn-primary {
  background: var(--accent);
  color: var(--bg);
  padding: 13px 30px;
  border-radius: 50px;
  font-weight: 500;
  font-size: 0.9rem;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  display: inline-flex; align-items: center; gap: 8px;
}
.btn-primary:hover { background: #93c5fd; transform: translateY(-2px); box-shadow: 0 10px 30px rgba(99,179,244,0.3); color: var(--bg); }
.btn-secondary {
  background: transparent;
  color: var(--text);
  padding: 12px 28px;
  border-radius: 50px;
  border: 1px solid var(--border);
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition);
  display: inline-flex; align-items: center; gap: 8px;
}
.btn-secondary:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

/* Hero photo */
.hero-photo-wrap {
  position: relative;
  width: 280px; height: 340px;
  flex-shrink: 0;
}
.hero-photo-frame {
  width: 100%; height: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-h);
  position: relative;
}
.hero-photo-frame img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.hero-photo-frame:hover img { transform: scale(1.04); }
.hero-photo-frame::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(99,179,244,0.15) 100%);
}
.hero-photo-badge {
  position: absolute;
  bottom: -16px; left: -16px;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 18px;
  backdrop-filter: blur(12px);
}
.hero-photo-badge .badge-num {
  font-family: var(--ff-head);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
}
.hero-photo-badge .badge-text {
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
}
.hero-dots {
  position: absolute;
  top: -20px; right: -20px;
  width: 90px; height: 90px;
  background-image: radial-gradient(circle, rgba(99,179,244,0.4) 1.5px, transparent 1.5px);
  background-size: 12px 12px;
  border-radius: 50%;
}

/* Stats */
.stats-row {
  display: flex; gap: 0;
  margin-top: 52px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--glass);
  backdrop-filter: blur(10px);
  overflow: hidden;
}
.stat-item {
  flex: 1;
  padding: 20px 24px;
  border-right: 1px solid var(--border);
  text-align: center;
}
.stat-item:last-child { border-right: none; }
.stat-number {
  font-family: var(--ff-head);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent);
  display: block;
}
.stat-label { font-size: 0.78rem; color: var(--text-muted); }

@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-photo-wrap { width: 220px; height: 270px; margin: 0 auto; }
  .stats-row { display: grid; grid-template-columns: 1fr 1fr; }
  .stat-item:nth-child(2) { border-right: none; }
}
@media (max-width: 480px) {
  .stats-row { grid-template-columns: 1fr; }
  .stat-item { border-right: none; border-bottom: 1px solid var(--border); }
  .stat-item:last-child { border-bottom: none; }
}

/* ══════════════════════════════════════════
   ABOUT
══════════════════════════════════════════ */
#about { background: var(--bg2); }
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.about-text p { color: var(--text-muted); margin-bottom: 16px; font-size: 1.02rem; }
.about-text p strong { color: var(--text); font-weight: 500; }
.about-highlights {
  margin-top: 28px;
  display: flex; flex-direction: column; gap: 12px;
}
.highlight-item {
  display: flex; align-items: center; gap: 12px;
  font-size: 0.92rem; color: var(--text-muted);
}
.highlight-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}
.about-cards { display: flex; flex-direction: column; gap: 16px; }
.about-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  transition: border-color var(--transition), background var(--transition);
}
.about-card:hover { border-color: var(--border-h); background: var(--glass-h); }
.about-card-icon { font-size: 1.4rem; margin-bottom: 8px; }
.about-card h4 { font-family: var(--ff-head); font-size: 0.95rem; font-weight: 600; margin-bottom: 4px; }
.about-card p { font-size: 0.85rem; color: var(--text-muted); }

@media (max-width: 768px) { .about-grid { grid-template-columns: 1fr; gap: 40px; } }

/* ══════════════════════════════════════════
   EXPERIENCE
══════════════════════════════════════════ */
.timeline { position: relative; padding-left: 28px; }
.timeline::before {
  content: '';
  position: absolute; left: 0; top: 8px; bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--accent) 0%, var(--accent2) 50%, transparent 100%);
}
.timeline-item {
  position: relative;
  margin-bottom: 36px;
  cursor: pointer;
}
.timeline-item::before {
  content: '';
  position: absolute; left: -33px; top: 8px;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg);
  box-shadow: 0 0 0 3px rgba(99,179,244,0.2);
  transition: box-shadow var(--transition);
}
.timeline-item:hover::before, .timeline-item.expanded::before {
  box-shadow: 0 0 0 5px rgba(99,179,244,0.3);
}
.timeline-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 24px;
  transition: border-color var(--transition), background var(--transition);
}
.timeline-item:hover .timeline-card, .timeline-item.expanded .timeline-card {
  border-color: var(--border-h);
  background: var(--glass-h);
}
.timeline-meta {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  margin-bottom: 6px;
}
.timeline-period {
  font-family: var(--ff-mono);
  font-size: 0.72rem;
  color: var(--accent);
  background: rgba(99,179,244,0.1);
  padding: 3px 10px;
  border-radius: 20px;
}
.timeline-type {
  font-size: 0.72rem;
  color: var(--text-dim);
}
.timeline-role {
  font-family: var(--ff-head);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 2px;
}
.timeline-org { font-size: 0.88rem; color: var(--accent2); margin-bottom: 8px; }
.timeline-details {
  display: none;
  margin-top: 12px;
  font-size: 0.88rem;
  color: var(--text-muted);
}
.timeline-item.expanded .timeline-details { display: block; }
.timeline-details ul { display: flex; flex-direction: column; gap: 6px; padding-left: 0; }
.timeline-details li { padding-left: 14px; position: relative; }
.timeline-details li::before { content: '→'; position: absolute; left: 0; color: var(--accent); font-size: 0.8rem; }
.timeline-expand-hint {
  font-size: 0.74rem;
  color: var(--text-dim);
  margin-top: 6px;
  font-family: var(--ff-mono);
}

/* ══════════════════════════════════════════
   PROJECTS
══════════════════════════════════════════ */
#projects { background: var(--bg2); }
.filter-bar {
  display: flex; gap: 10px; flex-wrap: wrap;
  margin-bottom: 40px;
}
.filter-btn {
  background: var(--glass);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 0.84rem;
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--ff-body);
}
.filter-btn:hover { border-color: var(--accent); color: var(--accent); }
.filter-btn.active {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
  font-weight: 500;
}
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 22px;
}
.project-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: border-color var(--transition), transform var(--transition), opacity 0.3s, box-shadow var(--transition);
}
.project-card:hover {
  border-color: var(--border-h);
  transform: translateY(-4px);
  box-shadow: 0 20px 60px rgba(99,179,244,0.1);
}
.project-img {
  width: 100%; height: 180px;
  overflow: hidden;
  position: relative;
  background: var(--bg3);
}
.project-img img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.project-card:hover .project-img img { transform: scale(1.06); }
.project-img-placeholder {
  width: 100%; height: 100%;
  display: flex; align-items: center; justify-content: center;
  font-size: 2.5rem;
  background: linear-gradient(135deg, var(--bg3) 0%, var(--bg2) 100%);
}
.project-body { padding: 20px 22px; flex: 1; display: flex; flex-direction: column; }
.project-type {
  font-family: var(--ff-mono);
  font-size: 0.68rem;
  color: var(--accent3);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.project-title {
  font-family: var(--ff-head);
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 6px;
}
.project-client {
  font-size: 0.8rem;
  color: var(--accent2);
  margin-bottom: 10px;
}
.project-desc { font-size: 0.86rem; color: var(--text-muted); flex: 1; margin-bottom: 16px; }
.project-tags { display: flex; gap: 7px; flex-wrap: wrap; margin-bottom: 16px; }
.tag {
  font-size: 0.72rem;
  background: rgba(99,179,244,0.08);
  color: var(--accent);
  border: 1px solid rgba(99,179,244,0.15);
  padding: 3px 10px;
  border-radius: 20px;
  font-family: var(--ff-mono);
}
.project-links { display: flex; gap: 10px; }
.project-link {
  font-size: 0.8rem;
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 6px 14px;
  border-radius: 50px;
  transition: all var(--transition);
  display: inline-flex; align-items: center; gap: 5px;
}
.project-link:hover { color: var(--accent); border-color: var(--accent); }

/* ══════════════════════════════════════════
   SKILLS
══════════════════════════════════════════ */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}
.skill-group {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
  transition: border-color var(--transition);
}
.skill-group:hover { border-color: var(--border-h); }
.skill-group-title {
  font-family: var(--ff-mono);
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 18px;
}
.skill-item { margin-bottom: 14px; }
.skill-item:last-child { margin-bottom: 0; }
.skill-top {
  display: flex; justify-content: space-between;
  margin-bottom: 6px;
  font-size: 0.86rem;
}
.skill-name { color: var(--text); }
.skill-pct { font-family: var(--ff-mono); font-size: 0.75rem; color: var(--text-muted); }
.skill-bar {
  height: 4px;
  background: rgba(255,255,255,0.06);
  border-radius: 2px;
  overflow: hidden;
}
.skill-fill {
  height: 100%;
  border-radius: 2px;
  width: 0;
  transition: width 1.2s cubic-bezier(0.4,0,0.2,1);
}
.skill-fill-blue { background: linear-gradient(90deg, var(--accent), #93c5fd); }
.skill-fill-violet { background: linear-gradient(90deg, var(--accent2), #c4b5fd); }
.skill-fill-green { background: linear-gradient(90deg, var(--accent3), #6ee7b7); }

/* ══════════════════════════════════════════
   RESEARCH
══════════════════════════════════════════ */
#research { background: var(--bg2); }
.research-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: start;
  transition: border-color var(--transition);
  margin-bottom: 20px;
}
.research-card:hover { border-color: var(--border-h); }
.research-badge {
  font-family: var(--ff-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 10px;
  display: inline-block;
}
.badge-published { background: rgba(52,211,153,0.1); color: var(--accent3); border: 1px solid rgba(52,211,153,0.2); }
.badge-ongoing { background: rgba(167,139,250,0.1); color: var(--accent2); border: 1px solid rgba(167,139,250,0.2); }
.research-title {
  font-family: var(--ff-head);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 8px;
}
.research-meta { font-size: 0.84rem; color: var(--text-muted); margin-bottom: 10px; }
.research-link {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 0.82rem;
  color: var(--accent);
  border: 1px solid rgba(99,179,244,0.25);
  padding: 7px 16px;
  border-radius: 50px;
  transition: all var(--transition);
  white-space: nowrap;
}
.research-link:hover { background: rgba(99,179,244,0.08); transform: translateX(2px); }

/* ══════════════════════════════════════════
   EDUCATION
══════════════════════════════════════════ */
.edu-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.edu-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 26px;
  transition: border-color var(--transition), transform var(--transition);
}
.edu-card:hover { border-color: var(--border-h); transform: translateY(-2px); }
.edu-card.featured { border-color: rgba(99,179,244,0.3); grid-column: span 1; }
.edu-degree {
  font-family: var(--ff-head);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 4px;
}
.edu-field { font-size: 0.85rem; color: var(--text-muted); margin-bottom: 10px; }
.edu-school { font-weight: 500; font-size: 0.95rem; margin-bottom: 4px; }
.edu-meta {
  display: flex; gap: 14px; flex-wrap: wrap;
  font-size: 0.78rem;
  color: var(--text-dim);
  font-family: var(--ff-mono);
  margin-top: 8px;
}
.edu-gpa { color: var(--accent3); }
.edu-honor {
  font-size: 0.72rem;
  background: rgba(167,139,250,0.1);
  color: var(--accent2);
  border: 1px solid rgba(167,139,250,0.2);
  padding: 2px 10px;
  border-radius: 20px;
  margin-top: 8px;
  display: inline-block;
}

@media (max-width: 640px) { .edu-grid { grid-template-columns: 1fr; } }

/* ══════════════════════════════════════════
   AWARDS
══════════════════════════════════════════ */
#awards { background: var(--bg2); }
.awards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 18px;
}
.award-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  transition: border-color var(--transition), transform var(--transition);
}
.award-card:hover { border-color: var(--border-h); transform: translateY(-3px); }
.award-rank {
  font-family: var(--ff-head);
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1;
  margin-bottom: 10px;
}
.award-rank.gold { color: #fbbf24; }
.award-rank.silver { color: #94a3b8; }
.award-rank.bronze { color: #d97706; }
.award-title { font-weight: 500; font-size: 0.9rem; margin-bottom: 6px; }
.award-event { font-size: 0.8rem; color: var(--accent2); margin-bottom: 4px; }
.award-year { font-family: var(--ff-mono); font-size: 0.72rem; color: var(--text-dim); }

/* ══════════════════════════════════════════
   CONTACT
══════════════════════════════════════════ */
#contact { text-align: center; }
.contact-card {
  max-width: 680px; margin: 0 auto;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 52px 48px;
  backdrop-filter: blur(12px);
}
.contact-card h2 {
  font-family: var(--ff-head);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 800;
  margin-bottom: 12px;
}
.contact-card p { color: var(--text-muted); margin-bottom: 36px; font-size: 1.05rem; }
.contact-links {
  display: flex; gap: 14px;
  justify-content: center; flex-wrap: wrap;
  margin-bottom: 32px;
}
.contact-link {
  display: flex; align-items: center; gap: 9px;
  background: var(--glass);
  border: 1px solid var(--border);
  color: var(--text-muted);
  padding: 12px 22px;
  border-radius: 50px;
  font-size: 0.88rem;
  transition: all var(--transition);
}
.contact-link:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.contact-link svg { width: 16px; height: 16px; }
#copy-email {
  background: var(--accent);
  color: var(--bg);
  border: none;
  padding: 13px 32px;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--ff-body);
  display: inline-flex; align-items: center; gap: 8px;
}
#copy-email:hover { background: #93c5fd; transform: translateY(-2px); }

@media (max-width: 560px) { .contact-card { padding: 36px 24px; } }

/* ══════════════════════════════════════════
   FOOTER
══════════════════════════════════════════ */
footer {
  border-top: 1px solid var(--border);
  padding: 28px 0;
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-dim);
}
footer span { color: var(--accent); }

/* ══════════════════════════════════════════
   AREAL CHAT WIDGET
══════════════════════════════════════════ */
/* Bubble */
#areal-bubble {
  position: fixed;
  bottom: 28px; right: 28px;
  width: 60px; height: 60px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  border: none;
  cursor: pointer;
  z-index: 1000;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 30px rgba(99,179,244,0.35);
  transition: transform var(--transition), box-shadow var(--transition);
  font-size: 1.5rem;
}
#areal-bubble:hover { transform: scale(1.08); box-shadow: 0 12px 40px rgba(99,179,244,0.5); }
#areal-bubble.pulse {
  animation: bubblePulse 1.8s ease infinite;
}
@keyframes bubblePulse {
  0%, 100% { box-shadow: 0 8px 30px rgba(99,179,244,0.35), 0 0 0 0 rgba(99,179,244,0.4); }
  50%       { box-shadow: 0 8px 30px rgba(99,179,244,0.35), 0 0 0 14px rgba(99,179,244,0); }
}
#areal-badge {
  position: absolute; top: -4px; right: -4px;
  width: 20px; height: 20px;
  background: var(--accent3);
  color: var(--bg);
  border-radius: 50%;
  font-size: 0.7rem;
  font-weight: 600;
  display: none;
  align-items: center; justify-content: center;
  border: 2px solid var(--bg);
}

/* Panel */
#areal-panel {
  position: fixed;
  bottom: 104px; right: 28px;
  width: 368px;
  max-height: 560px;
  background: rgba(13,17,32,0.97);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  z-index: 999;
  display: flex; flex-direction: column;
  overflow: hidden;
  opacity: 0;
  transform: translateY(16px) scale(0.97);
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
  box-shadow: 0 30px 80px rgba(0,0,0,0.6);
}
#areal-panel.open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: all;
}

/* Panel header */
.areal-header {
  display: flex; align-items: center; gap: 12px;
  padding: 16px 18px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.areal-avatar {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
}
.areal-info { flex: 1; }
.areal-name {
  font-family: var(--ff-head);
  font-size: 0.92rem;
  font-weight: 700;
}
.areal-status {
  font-size: 0.72rem;
  color: var(--accent3);
  display: flex; align-items: center; gap: 5px;
}
.areal-status::before {
  content: '';
  display: block; width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent3);
}
#areal-close {
  background: none; border: none;
  color: var(--text-muted);
  cursor: pointer; padding: 4px;
  font-size: 1.1rem;
  transition: color var(--transition);
  line-height: 1;
}
#areal-close:hover { color: var(--text); }

/* Messages */
#areal-messages {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex; flex-direction: column; gap: 10px;
  scrollbar-width: thin;
  scrollbar-color: var(--accent2) transparent;
}
#areal-messages::-webkit-scrollbar { width: 3px; }
#areal-messages::-webkit-scrollbar-thumb { background: var(--accent2); border-radius: 2px; }

/* Suggestions */
#areal-suggestions {
  padding: 0 14px 10px;
  display: flex; gap: 8px; flex-wrap: wrap;
  flex-shrink: 0;
}
.chip {
  background: rgba(99,179,244,0.07);
  border: 1px solid rgba(99,179,244,0.2);
  color: var(--accent);
  padding: 5px 12px;
  border-radius: 50px;
  font-size: 0.72rem;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition);
  font-family: var(--ff-body);
}
.chip:hover { background: rgba(99,179,244,0.14); }

/* Input area */
.areal-input-row {
  display: flex; gap: 10px; align-items: flex-end;
  padding: 12px 14px;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}
#areal-input {
  flex: 1;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-family: var(--ff-body);
  font-size: 0.88rem;
  padding: 9px 13px;
  resize: none;
  max-height: 100px;
  transition: border-color var(--transition);
  outline: none;
  line-height: 1.5;
}
#areal-input:focus { border-color: var(--accent); }
#areal-input::placeholder { color: var(--text-dim); }
#areal-send {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--accent);
  border: none;
  color: var(--bg);
  cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.9rem;
  flex-shrink: 0;
  transition: all var(--transition);
}
#areal-send:disabled { background: var(--bg3); color: var(--text-dim); cursor: not-allowed; }
#areal-send:not(:disabled):hover { background: #93c5fd; transform: scale(1.08); }

/* Message bubbles */
.msg {
  display: flex; flex-direction: column;
  opacity: 0; transform: translateY(8px);
  transition: opacity 0.3s ease, transform 0.3s ease;
  max-width: 88%;
}
.msg.visible { opacity: 1; transform: none; }
.msg--areal { align-self: flex-start; align-items: flex-start; }
.msg--user  { align-self: flex-end;  align-items: flex-end; }

.msg__bubble {
  padding: 10px 14px;
  border-radius: 14px;
  font-size: 0.86rem;
  line-height: 1.6;
  word-break: break-word;
}
.msg--areal .msg__bubble {
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  border-radius: 4px 14px 14px 14px;
}
.msg--user .msg__bubble {
  background: var(--accent);
  color: var(--bg);
  border-radius: 14px 4px 14px 14px;
}
.msg__bubble p { margin-bottom: 6px; }
.msg__bubble p:last-child { margin-bottom: 0; }
.msg__bubble ul { padding-left: 0; margin: 6px 0; }
.msg__bubble li {
  padding-left: 14px; position: relative;
  font-size: 0.83rem; margin-bottom: 4px;
}
.msg__bubble li::before { content: '·'; position: absolute; left: 3px; color: var(--accent); }
.msg--user .msg__bubble li::before { color: var(--bg); }
.msg__bubble a { color: var(--accent); text-decoration: underline; font-size: 0.82rem; }
.msg--user .msg__bubble a { color: var(--bg); }
.msg__bubble strong { color: var(--accent); font-weight: 500; }
.msg--user .msg__bubble strong { color: var(--bg); }
.msg__bubble code {
  font-family: var(--ff-mono);
  font-size: 0.78rem;
  background: rgba(0,0,0,0.2);
  padding: 1px 5px;
  border-radius: 3px;
}
.msg__time {
  font-size: 0.66rem;
  color: var(--text-dim);
  margin-top: 3px;
  font-family: var(--ff-mono);
}

/* Typing indicator */
.typing-indicator .msg__bubble {
  display: flex; align-items: center; gap: 5px;
  padding: 13px 18px;
}
.typing-indicator span {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: typingDot 1.2s ease infinite;
}
.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }
@keyframes typingDot {
  0%, 60%, 100% { opacity: 0.3; transform: scale(1); }
  30%           { opacity: 1;   transform: scale(1.3); }
}

@media (max-width: 420px) {
  #areal-panel { width: calc(100vw - 24px); right: 12px; bottom: 90px; }
  #areal-bubble { bottom: 20px; right: 20px; }
}