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

:root {
  --bg: #050a12;
  --bg2: #080f1a;
  --bg3: #0d1726;
  --surface: #0f1e30;
  --surface2: #142236;
  --cyan: #00e5ff;
  --cyan-dim: #00b8cc;
  --cyan-glow: rgba(0, 229, 255, 0.15);
  --cyan-glow2: rgba(0, 229, 255, 0.08);
  --accent: #7b5cfa;
  --accent-glow: rgba(123, 92, 250, 0.2);
  --text: #e2eaf5;
  --text-muted: #7a93af;
  --text-dim: #3d5570;
  --border: rgba(0, 229, 255, 0.12);
  --border2: rgba(0, 229, 255, 0.05);
  --font-display: 'Space Mono', monospace;
  --font-body: 'Inter', sans-serif;
  --nav-h: 70px;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.7;
  overflow-x: hidden;
}

/* ===== NOISE OVERLAY ===== */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  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)' opacity='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--cyan-dim); border-radius: 10px; }

/* ===== SELECTION ===== */
::selection { background: var(--cyan); color: var(--bg); }

/* ===== NAV ===== */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 5%;
  background: rgba(5, 10, 18, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border2);
  z-index: 1000;
  transition: border-color 0.3s;
}

nav.scrolled { border-bottom-color: var(--border); }

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.2rem;
  color: var(--cyan);
  text-decoration: none;
  letter-spacing: 2px;
  position: relative;
}

.nav-logo::after {
  content: '_';
  animation: blink 1.2s step-end infinite;
}

@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

.nav-links {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  font-family: var(--font-display);
  transition: color 0.25s;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 1px;
  background: var(--cyan);
  transition: width 0.3s ease;
}

.nav-links a:hover { color: var(--cyan); }
.nav-links a:hover::after { width: 100%; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--cyan);
  transition: all 0.3s;
}

/* ===== SECTIONS COMMON ===== */
section {
  position: relative;
  z-index: 1;
  padding: 100px 5%;
}

.section-label {
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 4px;
  color: var(--cyan);
  text-transform: uppercase;
  margin-bottom: 12px;
  opacity: 0.8;
}

.section-label::before {
  content: '// ';
  opacity: 0.5;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.5px;
  margin-bottom: 16px;
}

.section-title span { color: var(--cyan); }

.section-divider {
  width: 50px; height: 2px;
  background: linear-gradient(90deg, var(--cyan), transparent);
  margin-bottom: 48px;
}

/* ===== HERO ===== */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--nav-h) + 40px);
  padding-bottom: 80px;
  padding-left: 5%;
  padding-right: 5%;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.hero-content { position: relative; }

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 40px;
  padding: 6px 16px;
  font-family: var(--font-display);
  font-size: 0.72rem;
  color: var(--cyan);
  letter-spacing: 2px;
  margin-bottom: 28px;
}

.hero-eyebrow::before {
  content: '';
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  animation: pulse-dot 2s ease infinite;
}

@keyframes pulse-dot {
  0%,100% { box-shadow: 0 0 0 0 rgba(0,229,255,0.6); }
  50% { box-shadow: 0 0 0 5px rgba(0,229,255,0); }
}

.hero-name {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -1.5px;
  margin-bottom: 8px;
}

.hero-name .first { color: var(--text); }
.hero-name .last { color: var(--cyan); }

.hero-role {
  font-family: var(--font-display);
  font-size: clamp(0.9rem, 2vw, 1.1rem);
  color: var(--text-muted);
  margin-bottom: 28px;
  letter-spacing: 1px;
}

.hero-role .typed-text { color: var(--accent); }
.hero-role .cursor {
  display: inline-block;
  width: 2px;
  background: var(--accent);
  margin-left: 2px;
  animation: blink 0.9s step-end infinite;
  vertical-align: text-bottom;
  height: 1.1em;
}

.hero-bio {
  font-size: 0.95rem;
  color: var(--text-muted);
  max-width: 460px;
  margin-bottom: 40px;
  line-height: 1.8;
}

.hero-cta {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 26px;
  border-radius: 6px;
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.25s ease;
  border: none;
}

.btn-primary {
  background: var(--cyan);
  color: var(--bg);
  font-weight: 700;
}

.btn-primary:hover {
  background: white;
  box-shadow: 0 0 30px rgba(0,229,255,0.4);
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: var(--cyan);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  background: var(--cyan-glow);
  border-color: var(--cyan);
  transform: translateY(-2px);
}

/* Photo side */
.hero-photo-wrap {
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
  padding-bottom: 52px;
}

.photo-frame {
  position: relative;
  width: clamp(240px, 35vw, 380px);
  aspect-ratio: 0.82;
}

.photo-frame::before {
  content: '';
  position: absolute;
  inset: -2px;
  background: linear-gradient(135deg, var(--cyan), transparent 50%, var(--accent));
  border-radius: 12px;
  z-index: 0;
}

.photo-frame::after {
  content: '';
  position: absolute;
  top: 18px; left: 18px;
  right: -18px; bottom: -18px;
  border: 1px solid var(--border);
  border-radius: 12px;
  z-index: -1;
}

.photo-frame img {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 10px;
  display: block;
  filter: grayscale(10%) contrast(1.05);
}

.hero-scan {
  position: absolute;
  inset: 0;
  border-radius: 10px;
  overflow: hidden;
  z-index: 2;
  pointer-events: none;
}

.hero-scan::after {
  content: '';
  position: absolute;
  left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0.6;
  animation: scan 4s ease-in-out infinite;
  top: 0;
}

@keyframes scan {
  0% { top: 0; opacity: 0.6; }
  50% { top: 100%; opacity: 0.2; }
  51% { top: 100%; opacity: 0; }
  100% { top: 0; opacity: 0; }
}

/* Floating tags */
.hero-tags {
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
  width: 100%;
}

.tag {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 4px 12px;
  border-radius: 4px;
  font-family: var(--font-display);
  font-size: 0.68rem;
  color: var(--cyan);
  letter-spacing: 1px;
}

/* Grid background dots */
#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 70% 50%, rgba(0,229,255,0.04) 0%, transparent 60%),
    radial-gradient(circle at 20% 80%, rgba(123,92,250,0.06) 0%, transparent 50%);
  pointer-events: none;
}

/* ===== ABOUT ===== */
#about {
  background: var(--bg2);
  border-top: 1px solid var(--border2);
  border-bottom: 1px solid var(--border2);
}

.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
  max-width: 1100px;
  margin: 0 auto;
}

.about-text p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.9;
  margin-bottom: 18px;
}

.about-text p:last-child { margin-bottom: 0; }

.about-text strong { color: var(--cyan); font-weight: 600; }

.about-stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-top: 36px;
}

.stat-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 20px;
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s, transform 0.3s;
}

.stat-box::before {
  content: '';
  position: absolute;
  top: 0; left: 0;
  width: 3px; height: 100%;
  background: var(--cyan);
}

.stat-box:hover {
  border-color: var(--cyan);
  transform: translateY(-3px);
}

.stat-num {
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--cyan);
  font-weight: 700;
  line-height: 1;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

/* Education card */
.edu-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 28px;
  position: relative;
  overflow: hidden;
}

.edu-card::after {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 120px; height: 120px;
  background: radial-gradient(circle, var(--cyan-glow), transparent 70%);
  pointer-events: none;
}

.edu-badge {
  display: inline-block;
  background: var(--cyan-glow);
  border: 1px solid var(--border);
  color: var(--cyan);
  font-family: var(--font-display);
  font-size: 0.7rem;
  letter-spacing: 2px;
  padding: 4px 12px;
  border-radius: 4px;
  margin-bottom: 18px;
}

.edu-degree {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
  line-height: 1.3;
}

.edu-school {
  font-size: 0.9rem;
  color: var(--cyan);
  margin-bottom: 4px;
  font-weight: 500;
}

.edu-period {
  font-family: var(--font-display);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 1px;
}

.edu-details {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid var(--border2);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.edu-detail-item {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.edu-detail-item::before {
  content: '▸';
  color: var(--cyan);
  flex-shrink: 0;
  margin-top: 1px;
}

/* ===== SKILLS ===== */
#skills { }

.skills-inner { max-width: 1100px; margin: 0 auto; }

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.skill-category {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: 10px;
  padding: 24px;
  transition: border-color 0.3s, transform 0.3s;
}

.skill-category:hover {
  border-color: var(--border);
  transform: translateY(-4px);
}

.skill-cat-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border2);
}

.skill-cat-icon {
  width: 32px; height: 32px;
  border-radius: 6px;
  background: var(--cyan-glow);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.skill-cat-name {
  font-family: var(--font-display);
  font-size: 0.8rem;
  letter-spacing: 2px;
  color: var(--cyan);
  text-transform: uppercase;
}

.skill-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.skill-pill {
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: 4px;
  padding: 5px 12px;
  font-size: 0.78rem;
  color: var(--text);
  font-family: var(--font-display);
  transition: all 0.2s;
  letter-spacing: 0.5px;
}

.skill-pill:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: var(--cyan-glow2);
}

/* ===== PROJECTS ===== */
#projects {
  background: var(--bg2);
  border-top: 1px solid var(--border2);
  border-bottom: 1px solid var(--border2);
}

.projects-inner { max-width: 1100px; margin: 0 auto; }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 28px;
}

.project-card {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: 12px;
  padding: 28px;
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0;
  transition: opacity 0.3s;
}

.project-card:hover {
  border-color: var(--border);
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4), 0 0 30px rgba(0,229,255,0.06);
}

.project-card:hover::before { opacity: 1; }

.project-card.empty {
  border-style: dashed;
  opacity: 0.4;
  align-items: center;
  justify-content: center;
  min-height: 280px;
  cursor: default;
}

.project-card.empty:hover {
  transform: none;
  box-shadow: none;
  border-color: var(--border2);
}

.empty-label {
  font-family: var(--font-display);
  font-size: 0.75rem;
  color: var(--text-dim);
  letter-spacing: 2px;
  text-align: center;
}

.project-num {
  font-family: var(--font-display);
  font-size: 0.7rem;
  color: var(--text-dim);
  letter-spacing: 2px;
  margin-bottom: 16px;
}

.project-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
  line-height: 1.35;
}

.project-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.75;
  flex: 1;
  margin-bottom: 24px;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 24px;
}

.project-tag {
  font-family: var(--font-display);
  font-size: 0.65rem;
  background: var(--bg3);
  border: 1px solid var(--border2);
  color: var(--accent);
  padding: 3px 10px;
  border-radius: 3px;
  letter-spacing: 0.5px;
}

.project-links {
  display: flex;
  gap: 14px;
  align-items: center;
  padding-top: 18px;
  border-top: 1px solid var(--border2);
}

.project-link {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-display);
  font-size: 0.72rem;
  color: var(--text-muted);
  text-decoration: none;
  letter-spacing: 1px;
  text-transform: uppercase;
  transition: color 0.2s;
}

.project-link:hover { color: var(--cyan); }

.project-link svg {
  width: 14px; height: 14px;
  flex-shrink: 0;
}

/* ===== CONTACT ===== */
#contact { }

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 70px;
  align-items: start;
  max-width: 1000px;
  margin: 0 auto;
}

.contact-text h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.2;
}

.contact-text h2 span { color: var(--cyan); }

.contact-text p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.85;
  margin-bottom: 36px;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact-link-item {
  display: flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.875rem;
  transition: color 0.2s;
  group: true;
}

.contact-link-item:hover { color: var(--text); }

.contact-link-icon {
  width: 38px; height: 38px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.2s;
}

.contact-link-item:hover .contact-link-icon {
  background: var(--cyan-glow);
  border-color: var(--cyan);
}

.contact-link-icon svg {
  width: 16px; height: 16px;
  color: var(--cyan);
}

/* Contact Form */
.contact-form {
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: 12px;
  padding: 36px;
}

.form-group {
  margin-bottom: 22px;
}

.form-group label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: 6px;
  padding: 12px 16px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.25s;
  resize: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-dim); }

.form-group input:focus,
.form-group textarea:focus { border-color: var(--cyan); }

.form-group textarea { min-height: 130px; }

.form-submit {
  width: 100%;
  background: var(--cyan);
  color: var(--bg);
  border: none;
  border-radius: 6px;
  padding: 14px;
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.25s;
}

.form-submit:hover {
  background: white;
  box-shadow: 0 0 30px rgba(0,229,255,0.35);
  transform: translateY(-2px);
}

/* ===== FOOTER ===== */
footer {
  position: relative;
  z-index: 1;
  background: var(--bg2);
  border-top: 1px solid var(--border2);
  padding: 36px 5%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.footer-copy {
  font-family: var(--font-display);
  font-size: 0.72rem;
  color: var(--text-dim);
  letter-spacing: 1px;
}

.footer-copy span { color: var(--cyan); }

.footer-socials {
  display: flex;
  gap: 14px;
}

.footer-social {
  width: 36px; height: 36px;
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: 7px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  text-decoration: none;
  transition: all 0.2s;
}

.footer-social:hover {
  background: var(--cyan-glow);
  border-color: var(--cyan);
  color: var(--cyan);
}

.footer-social svg { width: 15px; height: 15px; }

/* ===== PROJECT SLIDER ===== */
.projects-slider-wrap {
  position: relative;
  padding-right: 40px;
}

.projects-viewport {
  overflow: hidden;
  width: 100%;
}

.projects-track {
  display: flex;
  transition: transform 0.55s cubic-bezier(0.65, 0, 0.35, 1);
  will-change: transform;
}

.projects-page {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  min-width: 100%;
  width: 100%;
  flex-shrink: 0;
  align-items: stretch;
  box-sizing: border-box;
}

/* Floating slider button */
.slider-btn {
  position: absolute;
  right: -26px;
  top: 50%;
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  width: 56px;
  height: 56px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--cyan);
  font-family: var(--font-display);
  cursor: pointer;
  box-shadow: 0 0 0 1px rgba(0,229,255,0.08), 0 8px 24px rgba(0,0,0,0.5);
  transition: background 0.25s, border-color 0.25s, box-shadow 0.25s, transform 0.25s;
  z-index: 10;
  overflow: hidden;
  padding: 0;
}

.slider-btn:hover {
  background: var(--cyan-glow);
  border-color: var(--cyan);
  box-shadow: 0 0 0 4px rgba(0,229,255,0.1), 0 8px 24px rgba(0,0,0,0.5);
  transform: translateY(-50%) scale(1.08);
}

.slider-btn svg {
  width: 18px; height: 18px;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

.slider-btn.flipped svg {
  transform: rotate(180deg);
}

.slider-btn-label {
  font-size: 0.48rem;
  letter-spacing: 0.8px;
  text-transform: uppercase;
  line-height: 1;
  text-align: center;
  max-width: 44px;
  word-break: break-word;
  hyphens: auto;
}

/* Dot indicators */
.slider-dots {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 32px;
}

.slider-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--text-dim);
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  padding: 0;
}

.slider-dot.active {
  background: var(--cyan);
  width: 24px;
  border-radius: 4px;
  box-shadow: 0 0 10px rgba(0,229,255,0.4);
}

/* Mobile view-more link */
.projects-mobile-more {
  display: none;
  justify-content: center;
  margin-top: 28px;
}

.project-card--github {
  text-decoration: none;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  border-style: dashed;
  background: var(--surface);
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s, background 0.3s;
}

.project-card--github:hover {
  border-color: var(--cyan);
  border-style: solid;
  background: var(--cyan-glow2);
  transform: translateY(-6px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4), 0 0 30px rgba(0,229,255,0.08);
}

.github-card-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 12px;
  padding: 12px 0;
}

.github-card-icon {
  color: var(--text-dim);
  transition: color 0.3s;
}

.project-card--github:hover .github-card-icon {
  color: var(--cyan);
}

.github-card-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.2px;
}

.github-card-sub {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.github-card-arrow {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-display);
  font-size: 0.68rem;
  color: var(--cyan);
  letter-spacing: 0.5px;
  margin-top: 4px;
  opacity: 0.7;
  transition: opacity 0.2s;
}

.project-card--github:hover .github-card-arrow {
  opacity: 1;
}

/* ===== SCROLL REVEAL ===== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== RESPONSIVE ===== */

/* ── Tablet (≤900px) ── */
@media (max-width: 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }
  .hero-content { order: 2; }
  .hero-bio { margin-left: auto; margin-right: auto; }
  .hero-cta { justify-content: center; }
  .hero-eyebrow { margin-left: auto; margin-right: auto; }

  .hero-photo-wrap {
    order: 1;
  }
  .photo-frame {
    width: clamp(160px, 45vw, 240px);
  }

  .about-inner { grid-template-columns: 1fr; gap: 36px; }
  .contact-inner { grid-template-columns: 1fr; gap: 36px; }
}

/* ── Mobile (≤680px) ── */
@media (max-width: 680px) {
  :root { --nav-h: 62px; }

  section { padding: 72px 6% 60px; }

  /* Nav */
  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: var(--nav-h); left: 0; right: 0;
    background: rgba(5,10,18,0.98);
    backdrop-filter: blur(24px);
    padding: 20px 6% 28px;
    gap: 18px;
    border-bottom: 1px solid var(--border);
    z-index: 999;
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }
  .nav-links a { font-size: 1rem; letter-spacing: 2px; }

  /* Hero */
  #hero {
    padding-top: calc(var(--nav-h) + 28px);
    padding-bottom: 60px;
    min-height: auto;
  }
  .hero-grid { gap: 32px; }
  .hero-name { letter-spacing: -0.5px; }
  .hero-eyebrow { font-size: 0.65rem; padding: 5px 12px; }

  .photo-frame {
    width: clamp(140px, 52vw, 200px);
  }
  /* disable offset shadow on mobile — causes overflow */
  .photo-frame::after { display: none; }

  .hero-tags {
    gap: 6px;
    flex-wrap: wrap;
    justify-content: center;
    white-space: normal;
  }
  .tag { font-size: 0.6rem; padding: 3px 9px; }

  .hero-bio { font-size: 0.9rem; }
  .hero-cta { gap: 10px; }
  .btn { padding: 11px 18px; font-size: 0.75rem; letter-spacing: 1px; }

  /* About */
  .about-stats { grid-template-columns: 1fr 1fr; gap: 12px; }
  .stat-box { padding: 16px; }
  .stat-num { font-size: 1.5rem; }

  .edu-card { padding: 22px; }

  /* Skills */
  .skills-grid { grid-template-columns: 1fr; gap: 16px; }
  .skill-category { padding: 18px; }

  /* Projects */
  .projects-page { grid-template-columns: 1fr; gap: 16px; }
  .project-card { padding: 20px; }
  .project-card.empty { min-height: 120px; }
  /* Hide slider button & page 2 on mobile — show GitHub link instead */
  .projects-slider-wrap { padding-right: 0; }
  .slider-btn { display: none !important; }
  .projects-mobile-more { display: flex; }
  .slider-dots { display: none; }
  .projects-track { display: block; }
  .projects-track .projects-page:last-child { display: none; }

  /* Contact */
  .contact-form { padding: 22px; }
  .contact-link-item { font-size: 0.82rem; }

  /* Footer */
  footer { flex-direction: column; text-align: center; gap: 16px; padding: 28px 6%; }
}

/* ── Small mobile (≤420px) ── */
@media (max-width: 420px) {
  section { padding: 64px 5% 52px; }

  .hero-cta { flex-direction: column; align-items: center; }
  .btn { width: 100%; justify-content: center; }

  .about-stats { grid-template-columns: 1fr 1fr; }

  .photo-frame { width: clamp(120px, 58vw, 180px); }

  .hero-tags { gap: 5px; }
  .tag { font-size: 0.58rem; padding: 3px 8px; }

  .contact-form { padding: 18px; }

  .section-title { letter-spacing: -0.3px; }
}