@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Fira+Code:wght@400;500&display=swap');

:root {
  --primary: #00FFB2;
  --primary-dim: rgba(0,255,178,0.15);
  --primary-glow: rgba(0,255,178,0.4);
  --secondary: #7B61FF;
  --accent: #FF6B6B;
  --bg: #050a0e;
  --bg2: #0a1628;
  --bg3: #0f1f35;
  --card: rgba(255,255,255,0.04);
  --card-border: rgba(255,255,255,0.08);
  --text: #e2e8f0;
  --text-muted: #64748b;
  --text-dim: #94a3b8;
  --font: 'Inter', sans-serif;
  --mono: 'Fira Code', monospace;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

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

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 3px; }

/* ── Particle Canvas ── */
#particles { position: fixed; inset: 0; z-index: 0; pointer-events: none; }

/* ── Navbar ── */
#navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 1rem 2rem;
  display: flex; align-items: center; justify-content: space-between;
  transition: all 0.4s ease;
}
#navbar.scrolled {
  background: rgba(5,10,14,0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--card-border);
  padding: 0.75rem 2rem;
}
.nav-logo {
  font-size: 1.4rem; font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  text-decoration: none;
}
.nav-links { display: flex; gap: 2rem; list-style: none; }
.nav-links a {
  color: var(--text-dim); text-decoration: none; font-size: 0.9rem; font-weight: 500;
  transition: color 0.3s; position: relative;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -4px; left: 0;
  width: 0; height: 2px; background: var(--primary);
  transition: width 0.3s;
}
.nav-links a:hover, .nav-links a.active { color: var(--primary); }
.nav-links a:hover::after, .nav-links a.active::after { width: 100%; }
.nav-hamburger { display: none; flex-direction: column; gap: 5px; cursor: pointer; }
.nav-hamburger span { width: 24px; height: 2px; background: var(--text); transition: all 0.3s; border-radius: 2px; }

/* Mobile Drawer */
.nav-drawer {
  position: fixed; top: 0; right: -100%; width: 70%; max-width: 300px;
  height: 100vh; background: var(--bg2);
  border-left: 1px solid var(--card-border);
  z-index: 200; display: flex; flex-direction: column;
  padding: 5rem 2rem 2rem; gap: 1.5rem;
  transition: right 0.4s cubic-bezier(0.4,0,0.2,1);
}
.nav-drawer.open { right: 0; }
.nav-drawer a { color: var(--text-dim); text-decoration: none; font-size: 1.1rem; font-weight: 500; transition: color 0.3s; }
.nav-drawer a:hover { color: var(--primary); }
.drawer-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.6);
  z-index: 150; opacity: 0; pointer-events: none; transition: opacity 0.3s;
}
.drawer-overlay.open { opacity: 1; pointer-events: all; }

/* ── Hero ── */
#hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  text-align: center; padding: 2rem;
  overflow: hidden;
}
.hero-content { position: relative; z-index: 2; max-width: 800px; }
.hero-greeting {
  font-family: var(--mono); font-size: 0.95rem;
  color: var(--primary); margin-bottom: 1rem;
  opacity: 0; animation: fadeUp 0.8s 0.3s forwards;
}
.hero-title {
  font-size: clamp(2.5rem, 7vw, 5rem); font-weight: 900;
  line-height: 1.1; margin-bottom: 1rem;
  opacity: 0; animation: fadeUp 0.8s 0.5s forwards;
}
.hero-title span { 
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
}
.hero-sub {
  font-size: 1.1rem; color: var(--text-dim); margin-bottom: 0.5rem;
  opacity: 0; animation: fadeUp 0.8s 0.7s forwards;
}
.hero-location {
  font-size: 0.9rem; color: var(--text-muted); margin-bottom: 2.5rem;
  opacity: 0; animation: fadeUp 0.8s 0.8s forwards;
}
.hero-location span { color: var(--primary); }
.hero-btns {
  display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap;
  opacity: 0; animation: fadeUp 0.8s 1s forwards;
}
.btn-primary {
  padding: 0.75rem 2rem; border-radius: 50px;
  background: linear-gradient(135deg, var(--primary), #00cc8f);
  color: #000; font-weight: 700; text-decoration: none; font-size: 0.95rem;
  transition: all 0.3s; border: none; cursor: pointer;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 30px var(--primary-glow); }
.btn-outline {
  padding: 0.75rem 2rem; border-radius: 50px;
  border: 1.5px solid var(--primary); color: var(--primary);
  background: transparent; font-weight: 600; text-decoration: none; font-size: 0.95rem;
  transition: all 0.3s; cursor: pointer;
}
.btn-outline:hover { background: var(--primary-dim); transform: translateY(-2px); }
.scroll-arrow {
  position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%);
  animation: bounce 2s infinite; z-index: 2;
}
.scroll-arrow svg { color: var(--primary); opacity: 0.7; }

/* ── Typewriter ── */
.typewriter { border-right: 2px solid var(--primary); animation: blink 0.75s step-end infinite; }
@keyframes blink { 0%,100%{border-color:var(--primary)} 50%{border-color:transparent} }

/* ── Section common ── */
section { position: relative; z-index: 2; padding: 5rem 2rem; }
.container { max-width: 1100px; margin: 0 auto; }

.section-title {
  font-size: clamp(2rem, 4vw, 3rem); font-weight: 800; margin-bottom: 1rem;
}
.section-title span { color: var(--primary); }
.section-line {
  width: 60px; height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 3px; margin-bottom: 3rem;
}

/* ── About ── */
.about-grid { display: grid; grid-template-columns: 1fr 1.6fr; gap: 4rem; align-items: center; }
.profile-wrap { position: relative; display: flex; justify-content: center; }
.profile-img-wrap {
  position: relative; width: 280px; height: 280px;
}
.profile-img {
  width: 100%; height: 100%; object-fit: cover;
  border-radius: 50%; position: relative; z-index: 2;
  border: 3px solid var(--primary-dim);
}
.glow-ring {
  position: absolute; inset: -8px; border-radius: 50%;
  border: 2px solid var(--primary);
  animation: glowPulse 3s ease-in-out infinite;
  z-index: 1;
}
.glow-ring-2 {
  position: absolute; inset: -18px; border-radius: 50%;
  border: 1px solid rgba(0,255,178,0.2);
  animation: glowPulse 3s ease-in-out infinite 1s;
  z-index: 1;
}
@keyframes glowPulse {
  0%,100%{ box-shadow: 0 0 15px var(--primary-glow); opacity: 1; }
  50%{ box-shadow: 0 0 40px var(--primary-glow); opacity: 0.6; }
}
.about-bio { font-size: 1rem; color: var(--text-dim); line-height: 1.8; margin-bottom: 1.5rem; }
.about-bio strong { color: var(--text); }
.fun-facts { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 1.5rem; }
.chip {
  padding: 0.35rem 0.9rem; border-radius: 50px;
  background: var(--primary-dim); border: 1px solid rgba(0,255,178,0.25);
  color: var(--primary); font-size: 0.8rem; font-weight: 500;
  display: flex; align-items: center; gap: 0.4rem;
}

/* ── Tech Stack ── */
#skills { background: linear-gradient(180deg, transparent, var(--bg2) 30%, var(--bg2) 70%, transparent); }
.tech-stack-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(130px, 1fr)); gap: 1.5rem;
}
.tech-card {
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: 16px; padding: 2rem 1rem;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  transition: all 0.3s cubic-bezier(0.4,0,0.2,1); text-align: center; gap: 1rem;
}
.tech-card:hover {
  border-color: var(--secondary); transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(123,97,255,0.2);
}
.tech-card img { width: 48px; height: 48px; object-fit: contain; }
.tech-card span { font-size: 0.9rem; font-weight: 600; color: var(--text); }

/* ── Education ── */
.timeline { position: relative; padding-left: 2rem; }
.timeline::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0;
  width: 2px; background: linear-gradient(180deg, var(--primary), var(--secondary), transparent);
}
.timeline-item {
  position: relative; margin-bottom: 2.5rem;
  opacity: 0; transform: translateX(-30px);
  transition: all 0.6s cubic-bezier(0.4,0,0.2,1);
}
.timeline-item.visible { opacity: 1; transform: translateX(0); }
.timeline-dot {
  position: absolute; left: -2.55rem; top: 0.4rem;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--primary); box-shadow: 0 0 12px var(--primary-glow);
  animation: dotPulse 2s ease-in-out infinite;
}
@keyframes dotPulse {
  0%,100%{ box-shadow: 0 0 8px var(--primary-glow); }
  50%{ box-shadow: 0 0 20px var(--primary-glow); }
}
.timeline-card {
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: 14px; padding: 1.5rem;
}
.timeline-card:hover { border-color: var(--primary); }
.timeline-year {
  font-family: var(--mono); font-size: 0.8rem; color: var(--primary);
  margin-bottom: 0.4rem;
}
.timeline-school { font-size: 1.15rem; font-weight: 700; margin-bottom: 0.3rem; }
.timeline-major { color: var(--text-dim); font-size: 0.9rem; }
.timeline-status {
  display: inline-block; margin-top: 0.8rem;
  padding: 0.25rem 0.8rem; border-radius: 50px;
  background: rgba(0,255,178,0.1); border: 1px solid var(--primary);
  color: var(--primary); font-size: 0.75rem; font-weight: 600;
}

/* ── Projects ── */
.filter-tabs { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 2.5rem; }
.tab-btn {
  padding: 0.5rem 1.5rem; border-radius: 50px;
  border: 1px solid var(--card-border); background: var(--bg2);
  color: var(--text-muted); font-size: 0.85rem; font-weight: 600;
  cursor: pointer; transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
  font-family: var(--font);
}
.tab-btn.active, .tab-btn:hover {
  border-color: var(--primary); color: var(--bg);
  background: var(--primary); box-shadow: 0 4px 15px var(--primary-glow);
}
.projects-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 1.5rem; }
.project-card {
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: 16px;
  transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
  opacity: 0; transform: translateY(20px);
  display: flex; flex-direction: column;
}
.project-card.visible { opacity: 1; transform: translateY(0); }
.project-card:hover { border-color: var(--primary); transform: translateY(-6px); box-shadow: 0 20px 40px rgba(0,0,0,0.4); }
.project-thumb {
  height: 180px; position: relative; overflow: hidden;
  background: linear-gradient(135deg, var(--bg2), var(--bg3));
  display: flex; align-items: center; justify-content: center;
  border-radius: 16px 16px 0 0;
}
.project-thumb-emoji { font-size: 4rem; }
.project-body { padding: 1.4rem; display: flex; flex-direction: column; flex: 1; }
.project-title { font-size: 1.05rem; font-weight: 700; margin-bottom: 0.5rem; }
.project-desc { color: var(--text-dim); font-size: 0.875rem; line-height: 1.6; margin-bottom: 1rem; flex-grow: 1; }
.project-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1rem; }
.tag {
  padding: 0.2rem 0.6rem; border-radius: 6px;
  background: rgba(123,97,255,0.15); border: 1px solid rgba(123,97,255,0.3);
  color: #a78bfa; font-size: 0.75rem; font-weight: 500;
}
.project-footer {
  display: flex; gap: 0.8rem; margin-top: auto; padding-top: 1rem;
  border-top: 1px solid var(--card-border);
}
.btn-proj {
  flex: 1; padding: 0.75rem 0; border-radius: 12px; text-decoration: none;
  font-size: 0.85rem; font-weight: 600; transition: all 0.3s;
  text-align: center; border: none; cursor: pointer; font-family: var(--font);
  display: flex; align-items: center; justify-content: center; gap: 0.4rem;
}
.btn-proj.demo { background: var(--primary); color: #000; }
.btn-proj.demo:hover { background: #00cc8f; transform: translateY(-2px); box-shadow: 0 4px 15px var(--primary-glow); }
.btn-proj.detail { background: var(--card); border: 1px solid var(--card-border); color: var(--text); }
.btn-proj.detail:hover { background: var(--bg3); border-color: var(--text-dim); transform: translateY(-2px); }

/* ── Certificates ── */
.certificates-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.5rem; }
.cert-card {
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: 16px; overflow: hidden;
  transition: all 0.3s cubic-bezier(0.4,0,0.2,1);
}
.cert-card:hover { border-color: var(--primary); transform: translateY(-4px); box-shadow: 0 10px 30px rgba(0,0,0,0.3); }
.cert-img-placeholder {
  height: 220px; background: var(--bg2);
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden; border-bottom: 1px solid var(--card-border);
}
.cert-actual-img {
  width: 100%; height: 100%; object-fit: contain; padding: 1rem; position: absolute; z-index: 2;
  transition: transform 0.5s;
}
.cert-card:hover .cert-actual-img { transform: scale(1.05); }
.cert-upload-text {
  text-align: center; color: var(--text-dim); font-size: 0.85rem; font-weight: 500;
  position: relative; z-index: 1;
}
.cert-upload-text span { font-size: 2rem; color: var(--text-muted); }
.cert-info { padding: 1.2rem; }
.cert-info h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: 0.3rem; }
.cert-info p { font-size: 0.85rem; color: var(--primary); font-family: var(--mono); }

/* ── Contact Modern ── */
#contact { background: linear-gradient(180deg, transparent, var(--bg2) 30%, var(--bg2) 70%, transparent); }
.contact-header { margin-bottom: 3rem; }
.contact-subtitle { color: var(--text-dim); font-size: 1.1rem; }
.contact-modern-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: stretch;
}
.contact-form-container {
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: 20px; padding: 2.5rem;
}
.form-group-modern {
  position: relative; margin-bottom: 1.2rem;
  display: flex; align-items: center;
}
.form-group-modern.align-top { align-items: flex-start; }
.input-icon {
  position: absolute; left: 1rem; top: 50%; transform: translateY(-50%);
  color: var(--text-muted); font-size: 1.1rem; z-index: 10;
}
.form-group-modern.align-top .input-icon { top: 1rem; transform: none; }
.form-group-modern input, .form-group-modern textarea {
  width: 100%; background: var(--bg); border: 1px solid var(--card-border);
  border-radius: 12px; padding: 1rem 1rem 1rem 3rem;
  color: var(--text); font-family: var(--font); font-size: 0.95rem;
  transition: border-color 0.3s; outline: none; resize: vertical;
}
.form-group-modern input:focus, .form-group-modern textarea:focus { border-color: var(--secondary); }
.btn-send-modern {
  width: 100%; padding: 1rem; border-radius: 12px;
  background: var(--secondary); color: #fff; font-weight: 600;
  border: none; cursor: pointer; transition: all 0.3s;
  display: flex; align-items: center; justify-content: center; gap: 0.5rem; font-size: 1rem;
}
.btn-send-modern:hover { background: #6a52e0; transform: translateY(-2px); box-shadow: 0 8px 25px rgba(123,97,255,0.4); }

.contact-social-container {
  background: var(--card); border: 1px solid var(--card-border);
  border-radius: 20px; padding: 2.5rem;
}
.social-title { font-size: 1.2rem; font-weight: 700; margin-bottom: 1.5rem; display: flex; align-items: center; gap: 0.5rem; }
.social-title span { color: var(--secondary); }
.social-grid-modern { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.social-btn {
  background: var(--bg); border: 1px solid var(--card-border);
  border-radius: 12px; padding: 1.2rem; text-decoration: none;
  display: flex; align-items: center; gap: 1rem; transition: all 0.3s;
}
.social-btn:hover { border-color: var(--secondary); transform: translateY(-3px); }
.social-btn .icon { font-size: 1.8rem; }
.social-text { color: var(--text); font-weight: 600; font-size: 0.95rem; line-height: 1.3; }
.social-text small { color: var(--text-dim); font-weight: 400; font-size: 0.8rem; }

/* ── Toast ── */
.toast-container { position: fixed; bottom: 2rem; right: 2rem; z-index: 999; display: flex; flex-direction: column; gap: 0.5rem; }
.toast {
  padding: 0.8rem 1.4rem; border-radius: 12px;
  display: flex; align-items: center; gap: 0.6rem; font-size: 0.9rem;
  animation: slideIn 0.4s ease forwards;
  min-width: 280px; box-shadow: 0 8px 30px rgba(0,0,0,0.4);
}
.toast.success { background: rgba(0,255,178,0.15); border: 1px solid var(--primary); color: var(--primary); }
.toast.error { background: rgba(255,107,107,0.15); border: 1px solid var(--accent); color: var(--accent); }
@keyframes slideIn { from{transform:translateX(100px);opacity:0} to{transform:translateX(0);opacity:1} }

/* ── Footer ── */
footer {
  background: var(--bg2); border-top: 1px solid var(--card-border);
  padding: 3rem 2rem 2rem; position: relative; z-index: 2;
}
.footer-inner {
  max-width: 1100px; margin: 0 auto;
  display: grid; grid-template-columns: 1fr auto 1fr; align-items: center;
  gap: 2rem;
}
.footer-brand { font-size: 1.2rem; font-weight: 800; }
.footer-brand span { color: var(--primary); }
.footer-links { display: flex; gap: 1.5rem; }
.footer-links a { color: var(--text-muted); text-decoration: none; font-size: 0.85rem; transition: color 0.3s; }
.footer-links a:hover { color: var(--primary); }
.footer-copy { text-align: right; color: var(--text-muted); font-size: 0.8rem; }
.back-to-top {
  position: fixed; bottom: 2rem; left: 2rem; z-index: 99;
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--primary); border: none; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  color: #000; opacity: 0; transform: translateY(20px);
  transition: all 0.3s; box-shadow: 0 4px 20px var(--primary-glow);
}
.back-to-top.visible { opacity: 1; transform: translateY(0); }
.back-to-top:hover { transform: translateY(-3px) scale(1.05); }

/* ── Project Modal ── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(5,10,14,0.9); backdrop-filter: blur(8px);
  z-index: 1000; display: flex; align-items: center; justify-content: center;
  opacity: 0; pointer-events: none; transition: opacity 0.4s ease; padding: 2rem;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal-container {
  background: var(--bg2); border: 1px solid var(--card-border);
  border-radius: 20px; width: 100%; max-width: 1000px; max-height: 90vh;
  overflow-y: auto; position: relative;
  transform: translateY(30px); transition: transform 0.4s ease;
}
.modal-overlay.open .modal-container { transform: translateY(0); }
.modal-close {
  position: absolute; top: 1.5rem; right: 1.5rem; background: var(--card);
  border: 1px solid var(--card-border); color: var(--text); border-radius: 50%;
  width: 40px; height: 40px; display: flex; align-items: center; justify-content: center;
  cursor: pointer; transition: all 0.2s; z-index: 10;
}
.modal-close:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.modal-header { padding: 2rem 3rem 0; }
.modal-breadcrumb { color: var(--text-dim); font-size: 0.85rem; font-family: var(--mono); }
#modalBack:hover { color: var(--primary); }
.modal-body { padding: 2rem 3rem 3rem; }

/* Modal Content specific */
.detail-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 3rem; align-items: start; }
.detail-left h2 { font-size: 2.2rem; font-weight: 800; margin-bottom: 1rem; color: #fff; }
.detail-left p { color: var(--text-dim); line-height: 1.7; margin-bottom: 2rem; }
.detail-stats { display: flex; gap: 1rem; margin-bottom: 2rem; }
.stat-box {
  background: var(--card); border: 1px solid var(--card-border); border-radius: 12px;
  padding: 1rem; flex: 1; text-align: center;
}
.stat-box h4 { font-size: 1.5rem; color: var(--secondary); margin-bottom: 0.2rem; }
.stat-box span { font-size: 0.8rem; color: var(--text-muted); }
.detail-actions { display: flex; gap: 1rem; margin-bottom: 2.5rem; }
.btn-demo-modal {
  padding: 0.8rem 1.5rem; border-radius: 12px; background: var(--secondary);
  color: #fff; text-decoration: none; font-weight: 600; transition: all 0.3s; display: inline-block;
}
.btn-demo-modal:hover { background: #6a52e0; }
.btn-github-modal {
  padding: 0.8rem 1.5rem; border-radius: 12px; background: var(--card); border: 1px solid var(--card-border);
  color: var(--text); text-decoration: none; font-weight: 600; transition: all 0.3s; display: inline-block;
}
.btn-github-modal:hover { border-color: var(--text); }
.tech-used-title { font-size: 0.9rem; font-family: var(--mono); color: var(--primary); margin-bottom: 1rem; }
.tech-used-list { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.tech-pill {
  padding: 0.4rem 0.8rem; border-radius: 50px; background: rgba(255,255,255,0.05);
  border: 1px solid var(--card-border); font-size: 0.8rem; display: flex; align-items: center; gap: 0.4rem;
}
.detail-right img { width: 100%; border-radius: 16px; border: 1px solid var(--card-border); margin-bottom: 1.5rem; }
.feature-list { list-style: none; }
.feature-list li {
  position: relative; padding-left: 1.5rem; margin-bottom: 0.8rem; color: var(--text-dim); font-size: 0.95rem;
}
.feature-list li::before {
  content: '⚡'; position: absolute; left: 0; top: 0; font-size: 0.9rem;
}

/* ── Animations ── */
@keyframes fadeUp { from{opacity:0;transform:translateY(30px)} to{opacity:1;transform:translateY(0)} }
@keyframes bounce { 0%,100%{transform:translateX(-50%) translateY(0)} 50%{transform:translateX(-50%) translateY(-10px)} }

.reveal {
  opacity: 0; transform: translateY(40px);
  transition: all 0.7s cubic-bezier(0.4,0,0.2,1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ── Responsive ── */
@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .about-grid { grid-template-columns: 1fr; text-align: center; }
  .about-grid .profile-wrap { justify-content: center; }
  .fun-facts { justify-content: center; }
  .contact-modern-grid { grid-template-columns: 1fr; }
  .detail-grid { grid-template-columns: 1fr; }
  .modal-header, .modal-body { padding: 1.5rem; }
  .footer-inner { grid-template-columns: 1fr; text-align: center; }
  .footer-links { justify-content: center; }
  .footer-copy { text-align: center; }
}
@media (max-width: 480px) {
  .projects-grid { grid-template-columns: 1fr; }
  .social-grid-modern { grid-template-columns: 1fr; }
  .certificates-grid { grid-template-columns: 1fr; }
  .tech-stack-grid { grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); }
}