/* ══════════════════════════════════════════════════════════════════════
   OMER ARAFAT — PORTFOLIO  |  Premium Dark Theme
   ══════════════════════════════════════════════════════════════════════ */

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

:root {
  --bg:           #06060F;
  --bg-alt:       #0B0B18;
  --bg-card:      #0F0F22;
  --bg-elevated:  #141432;
  --accent:       #6366F1;
  --accent-2:     #06B6D4;
  --accent-3:     #10B981;
  --orange:       #F59E0B;
  --red:          #EF4444;
  --text:         #F1F5F9;
  --text-sec:     #94A3B8;
  --text-muted:   #475569;
  --border:       rgba(99,102,241,0.18);
  --border-sub:   rgba(255,255,255,0.06);
  --glow-accent:  rgba(99,102,241,0.35);
  --glow-cyan:    rgba(6,182,212,0.25);
  --glow-green:   rgba(16,185,129,0.25);
  --radius:       16px;
  --radius-sm:    10px;
  --shadow-card:  0 4px 40px rgba(0,0,0,0.5);
  --trans:        0.3s cubic-bezier(0.4,0,0.2,1);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 99px; }

/* ── TYPOGRAPHY ───────────────────────────────────────────────────────── */
.gradient-text {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── LAYOUT ───────────────────────────────────────────────────────────── */
.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

.section { padding: 96px 0; }
.section-alt { background: var(--bg-alt); }

.section-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 99px;
  margin-bottom: 16px;
  background: rgba(99,102,241,0.08);
}

.section-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 56px;
  color: var(--text);
}

/* ── REVEAL ANIMATION ─────────────────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── NAV ──────────────────────────────────────────────────────────────── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  transition: background var(--trans), box-shadow var(--trans);
}
#navbar.scrolled {
  background: rgba(6,6,15,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--border-sub);
}

.nav-inner {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
  height: 68px;
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 800;
  font-size: 20px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  gap: 4px;
  margin-left: auto;
}

.nav-links a {
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-sec);
  border-radius: var(--radius-sm);
  transition: color var(--trans), background var(--trans);
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 4px; left: 14px; right: 14px;
  height: 2px;
  background: var(--accent);
  border-radius: 99px;
  transform: scaleX(0);
  transition: transform var(--trans);
}
.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { transform: scaleX(1); }

.nav-cta {
  flex-shrink: 0;
  padding: 9px 20px;
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  border: 1px solid var(--accent);
  border-radius: var(--radius-sm);
  transition: background var(--trans), box-shadow var(--trans);
}
.nav-cta:hover {
  background: var(--accent);
  box-shadow: 0 0 20px var(--glow-accent);
}

.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: 22px; height: 2px;
  background: var(--text);
  border-radius: 99px;
  transition: var(--trans);
}

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 68px; left: 0; right: 0;
  background: rgba(6,6,15,0.96);
  backdrop-filter: blur(20px);
  z-index: 999;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border-sub);
}
.mobile-menu.open { display: block; }
.mobile-menu ul { display: flex; flex-direction: column; gap: 4px; }
.mobile-menu a {
  display: block;
  padding: 12px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-sec);
  border-radius: var(--radius-sm);
  transition: color var(--trans), background var(--trans);
}
.mobile-menu a:hover { color: var(--text); background: var(--bg-card); }

/* ── HERO ─────────────────────────────────────────────────────────────── */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 68px;
}

/* Gradient orbs */
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: orb-float 8s ease-in-out infinite;
  pointer-events: none;
}
.orb-1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(99,102,241,0.3) 0%, transparent 70%);
  top: -100px; left: -100px;
  animation-delay: 0s;
}
.orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(6,182,212,0.2) 0%, transparent 70%);
  top: 50%; right: -80px;
  animation-delay: -3s;
}
.orb-3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(16,185,129,0.2) 0%, transparent 70%);
  bottom: 0; left: 40%;
  animation-delay: -6s;
}

@keyframes orb-float {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%       { transform: translate(30px, -20px) scale(1.05); }
  66%       { transform: translate(-20px, 30px) scale(0.95); }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 1120px;
  margin: 0 auto;
  padding: 60px 24px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-3);
  padding: 8px 16px;
  border: 1px solid rgba(16,185,129,0.25);
  border-radius: 99px;
  background: rgba(16,185,129,0.08);
  margin-bottom: 28px;
  animation: fade-in-up 0.6s ease 0.1s both;
}
.badge-dot {
  width: 8px; height: 8px;
  background: var(--accent-3);
  border-radius: 50%;
  animation: pulse 2s ease infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(16,185,129,0.4); }
  50%       { opacity: 0.8; box-shadow: 0 0 0 6px rgba(16,185,129,0); }
}

.hero-name {
  display: flex;
  flex-direction: column;
  margin-bottom: 20px;
  animation: fade-in-up 0.6s ease 0.2s both;
}

.line-1 {
  font-size: clamp(18px, 2.5vw, 24px);
  font-weight: 500;
  color: var(--text-sec);
  font-family: 'Inter', sans-serif;
}

.line-2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(52px, 9vw, 100px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -2px;
}

.hero-title {
  font-size: clamp(14px, 2vw, 18px);
  font-weight: 500;
  color: var(--text-sec);
  margin-bottom: 20px;
  animation: fade-in-up 0.6s ease 0.3s both;
}

.hero-sub {
  font-size: clamp(14px, 1.5vw, 17px);
  color: var(--text-muted);
  max-width: 600px;
  line-height: 1.7;
  margin-bottom: 36px;
  animation: fade-in-up 0.6s ease 0.4s both;
}
.hero-sub strong { color: var(--text-sec); font-weight: 600; }

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 52px;
  animation: fade-in-up 0.6s ease 0.5s both;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 15px;
  font-weight: 700;
  border-radius: var(--radius-sm);
  transition: var(--trans);
  cursor: pointer;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), #4F46E5);
  color: #fff;
  box-shadow: 0 4px 24px rgba(99,102,241,0.35);
}
.btn-primary:hover {
  --lift: -2px;
  box-shadow: 0 8px 32px rgba(99,102,241,0.5);
}
.btn-ghost {
  border: 1px solid var(--border);
  color: var(--text-sec);
  background: rgba(255,255,255,0.03);
}
.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--text);
  background: rgba(99,102,241,0.08);
  --lift: -2px;
}

/* Stats */
.hero-stats {
  display: flex;
  align-items: center;
  gap: 28px;
  animation: fade-in-up 0.6s ease 0.6s both;
}
.stat {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  font-size: 14px;
  color: var(--text-sec);
  gap: 2px;
}
.stat span:not(.stat-num):not(.stat-label) {
  font-size: 26px;
  font-weight: 900;
  font-family: 'Space Grotesk', sans-serif;
  color: var(--text);
  line-height: 1;
}
.stat-num {
  font-size: 26px;
  font-weight: 900;
  font-family: 'Space Grotesk', sans-serif;
  color: var(--text);
  line-height: 1;
  display: inline;
}
.stat-label {
  font-size: 11px;
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: 0.5px;
}
.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border-sub);
}

/* Floating tech tags */
.hero-tags {
  position: absolute;
  right: 80px;
  top: 50%;
  transform: translateY(-50%);
  width: 200px;
  height: 400px;
  pointer-events: none;
}
.tag-float {
  position: absolute;
  padding: 8px 16px;
  font-size: 12px;
  font-weight: 700;
  border-radius: 99px;
  border: 1px solid var(--border);
  background: rgba(15,15,34,0.8);
  backdrop-filter: blur(8px);
  color: var(--text-sec);
  animation: tag-float 6s ease-in-out infinite;
}
.t1 { top: 0%;   left: 20%;  animation-delay: 0s;    border-color: rgba(99,102,241,0.3); color: #a5b4fc; }
.t2 { top: 20%;  left: 0%;   animation-delay: -1s; }
.t3 { top: 38%;  left: 30%;  animation-delay: -2s;   border-color: rgba(6,182,212,0.3); color: #67e8f9; }
.t4 { top: 56%;  left: 5%;   animation-delay: -3s;   border-color: rgba(16,185,129,0.3); color: #6ee7b7; }
.t5 { top: 72%;  left: 35%;  animation-delay: -4s;   border-color: rgba(245,158,11,0.3); color: #fcd34d; }
.t6 { top: 88%;  left: 10%;  animation-delay: -5s; }

@keyframes tag-float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-12px); }
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  color: var(--text-muted);
  animation: bounce 2s ease infinite;
  transition: color var(--trans);
}
.scroll-indicator:hover { color: var(--accent); }

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(8px); }
}

@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── ABOUT ────────────────────────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 64px;
  align-items: start;
}

.about-avatar-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.about-avatar {
  width: 220px; height: 220px;
  border-radius: 24px;
  background: linear-gradient(135deg, var(--bg-elevated), var(--bg-card));
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 60px rgba(99,102,241,0.2);
  position: relative;
  overflow: hidden;
}
.about-avatar::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(99,102,241,0.1), rgba(6,182,212,0.1));
}

.avatar-initials {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 64px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
}

.about-location {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-muted);
  font-weight: 500;
}

.about-text p {
  font-size: 16px;
  color: var(--text-sec);
  line-height: 1.75;
  margin-bottom: 16px;
}
.about-text p strong { color: var(--text); font-weight: 700; }

.about-awards {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 24px 0;
}
.award-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  font-size: 13px;
  font-weight: 600;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: rgba(99,102,241,0.06);
  color: var(--text-sec);
  transition: var(--trans);
}
.award-chip:hover { border-color: var(--accent); color: var(--text); }

.about-links { display: flex; gap: 12px; flex-wrap: wrap; }
.about-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-sec);
  border: 1px solid var(--border-sub);
  border-radius: var(--radius-sm);
  transition: var(--trans);
}
.about-link:hover {
  color: var(--accent);
  border-color: var(--border);
  background: rgba(99,102,241,0.06);
  transform: translateY(-2px);
}

/* ── SKILLS ───────────────────────────────────────────────────────────── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.skill-category {
  background: var(--bg-card);
  border: 1px solid var(--border-sub);
  border-radius: var(--radius);
  padding: 24px;
  transition: border-color var(--trans), transform var(--trans), box-shadow var(--trans);
}
.skill-category:hover {
  border-color: var(--border);
  --card-lift: -4px;
  box-shadow: var(--shadow-card);
}

.skill-cat-icon { font-size: 28px; margin-bottom: 12px; }

.skill-category h3 {
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--text);
}

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

.skill-tag {
  padding: 5px 12px;
  font-size: 12px;
  font-weight: 600;
  border-radius: 99px;
  border: 1px solid var(--border-sub);
  color: var(--text-sec);
  background: rgba(255,255,255,0.03);
  transition: var(--trans);
}
.skill-tag:hover { border-color: var(--accent); color: var(--accent); }
.skill-tag.hot {
  border-color: rgba(99,102,241,0.4);
  color: #a5b4fc;
  background: rgba(99,102,241,0.1);
}

/* ── TIMELINE ─────────────────────────────────────────────────────────── */
.timeline {
  position: relative;
  padding-left: 48px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 16px;
  top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), var(--accent-2), transparent);
  border-radius: 99px;
}

.timeline-item {
  position: relative;
  margin-bottom: 36px;
}
.timeline-item:last-child { margin-bottom: 0; }

.timeline-dot {
  position: absolute;
  left: -40px;
  top: 24px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg);
  box-shadow: 0 0 16px var(--glow-accent);
}
.timeline-dot.dot-green {
  background: var(--accent-3);
  box-shadow: 0 0 16px var(--glow-green);
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border-sub);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color var(--trans), transform var(--trans), box-shadow var(--trans);
}
.timeline-card:hover {
  border-color: var(--border);
  transform: translateX(4px);
  box-shadow: var(--shadow-card);
}
.card-highlight {
  border-color: rgba(16,185,129,0.25);
  background: linear-gradient(135deg, rgba(16,185,129,0.05), var(--bg-card));
}
.card-highlight:hover { border-color: rgba(16,185,129,0.5); }

.tcard-header {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.tcard-company-badge {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 800;
  color: #fff;
  flex-shrink: 0;
  font-family: 'Space Grotesk', sans-serif;
}

.tcard-role {
  font-size: 17px;
  font-weight: 800;
  color: var(--text);
  line-height: 1.3;
  font-family: 'Space Grotesk', sans-serif;
}
.tcard-company {
  font-size: 13px;
  color: var(--accent-2);
  font-weight: 600;
  margin-top: 2px;
}
.tcard-note { color: var(--text-muted); font-weight: 400; }

.tcard-period {
  margin-left: auto;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
  padding: 5px 12px;
  border: 1px solid var(--border-sub);
  border-radius: 99px;
  white-space: nowrap;
  flex-shrink: 0;
}

.tcard-bullets {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 18px;
}
.tcard-bullets li {
  font-size: 14px;
  color: var(--text-sec);
  padding-left: 16px;
  position: relative;
  line-height: 1.6;
}
.tcard-bullets li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 12px;
  top: 1px;
}
.tcard-bullets strong { color: var(--text); font-weight: 700; }

.tcard-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tcard-tags span {
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 600;
  border-radius: 99px;
  background: rgba(99,102,241,0.1);
  border: 1px solid rgba(99,102,241,0.2);
  color: #a5b4fc;
  letter-spacing: 0.2px;
}

/* ── PROJECTS ─────────────────────────────────────────────────────────── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-sub);
  border-radius: var(--radius);
  padding: 28px;
  transition: border-color var(--trans), transform var(--trans), box-shadow var(--trans);
  display: flex;
  flex-direction: column;
}
.project-card:hover {
  border-color: var(--border);
  --card-lift: -6px;
  box-shadow: 0 8px 48px rgba(0,0,0,0.5);
}

.project-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.project-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.project-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  border-radius: 10px;
  border: 1px solid var(--border-sub);
  color: var(--text-muted);
  transition: var(--trans);
}
.project-links a:hover { color: var(--text); border-color: var(--border); }

.project-card h3 {
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 10px;
  color: var(--text);
  font-family: 'Space Grotesk', sans-serif;
}
.project-card p {
  font-size: 14px;
  color: var(--text-sec);
  line-height: 1.65;
  flex: 1;
  margin-bottom: 20px;
}
.project-card strong { color: var(--text); font-weight: 700; }

.project-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.project-stack span {
  padding: 4px 10px;
  font-size: 11px;
  font-weight: 600;
  border-radius: 99px;
  background: rgba(6,182,212,0.08);
  border: 1px solid rgba(6,182,212,0.2);
  color: #67e8f9;
}

/* ── EDUCATION ────────────────────────────────────────────────────────── */
.edu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.edu-card {
  background: var(--bg-card);
  border: 1px solid var(--border-sub);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  transition: border-color var(--trans), transform var(--trans), box-shadow var(--trans);
}
.edu-card:hover {
  border-color: var(--border);
  --card-lift: -4px;
  box-shadow: var(--shadow-card);
}

.edu-icon { font-size: 36px; margin-bottom: 16px; }

.edu-badge {
  display: inline-block;
  padding: 5px 16px;
  font-size: 12px;
  font-weight: 800;
  border-radius: 99px;
  background: rgba(99,102,241,0.15);
  border: 1px solid rgba(99,102,241,0.3);
  color: #a5b4fc;
  margin-bottom: 12px;
  letter-spacing: 1px;
}
.edu-badge-blue {
  background: rgba(6,182,212,0.12);
  border-color: rgba(6,182,212,0.3);
  color: #67e8f9;
}

.edu-card h3 {
  font-size: 20px;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 6px;
  font-family: 'Space Grotesk', sans-serif;
}

.edu-uni {
  font-size: 14px;
  color: var(--text-sec);
  font-weight: 500;
  margin-bottom: 16px;
  line-height: 1.4;
}

.edu-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}
.edu-year {
  font-size: 13px;
  font-weight: 700;
  color: var(--text-muted);
  padding: 4px 12px;
  border: 1px solid var(--border-sub);
  border-radius: 99px;
}
.edu-cgpa {
  font-size: 14px;
  font-weight: 700;
  color: var(--accent-3);
  padding: 4px 12px;
  border: 1px solid rgba(16,185,129,0.25);
  border-radius: 99px;
  background: rgba(16,185,129,0.08);
}

/* ── CONTACT ──────────────────────────────────────────────────────────── */
.contact-intro {
  font-size: 17px;
  color: var(--text-sec);
  max-width: 560px;
  margin-bottom: 48px;
  line-height: 1.7;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 22px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-sub);
  border-radius: var(--radius);
  transition: var(--trans);
}
.contact-card:hover {
  border-color: var(--border);
  --card-lift: -4px;
  box-shadow: var(--shadow-card);
}

.contact-icon {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: rgba(99,102,241,0.12);
  border: 1px solid rgba(99,102,241,0.2);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-icon-green { background: rgba(16,185,129,0.1); border-color: rgba(16,185,129,0.25); color: var(--accent-3); }
.contact-icon-blue  { background: rgba(6,182,212,0.1);  border-color: rgba(6,182,212,0.25);  color: var(--accent-2); }
.contact-icon-purple{ background: rgba(139,92,246,0.1); border-color: rgba(139,92,246,0.25); color: #c084fc; }

.contact-label {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 3px;
}
.contact-value {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-sec);
}
.contact-card:hover .contact-value { color: var(--text); }

/* ── FOOTER ───────────────────────────────────────────────────────────── */
.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border-sub);
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
}
.footer-logo {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 22px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
}
.footer p { font-size: 14px; color: var(--text-muted); }
.footer-sub { font-size: 12px; color: var(--text-muted); opacity: 0.6; }

/* ── RESPONSIVE ───────────────────────────────────────────────────────── */
@media (max-width: 900px) {
  .hero-tags { display: none; }
  .about-grid { grid-template-columns: 1fr; }
  .about-avatar-wrap { align-items: flex-start; flex-direction: row; }
}

@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .nav-links, .nav-cta { display: none; }
  .nav-hamburger { display: flex; }
  .hero-stats { gap: 16px; flex-wrap: wrap; }
  .stat-divider { display: none; }
  .timeline { padding-left: 28px; }
  .timeline::before { left: 8px; }
  .timeline-dot { left: -24px; }
  .tcard-period { display: none; }
}

@media (max-width: 480px) {
  .line-2 { letter-spacing: -1px; }
  .projects-grid, .edu-grid, .contact-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
  .tcard-header { gap: 12px; }
  .about-avatar-wrap { flex-direction: column; }
}

/* ── BLOG ─────────────────────────────────────────────────────────────── */
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 24px;
}

.blog-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border-sub);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform var(--trans), border-color var(--trans), box-shadow var(--trans);
  color: inherit;
}
.blog-card:hover {
  --card-lift: -6px;
  border-color: var(--border);
  box-shadow: 0 20px 50px rgba(0,0,0,0.5), 0 0 0 1px var(--glow-accent);
}

.blog-card-media {
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.blog-card-emoji {
  font-size: 56px;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.3));
}

.blog-card-body {
  padding: 22px 24px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.blog-meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--text-sec);
  margin-bottom: 12px;
  font-weight: 500;
}
.blog-dot { color: var(--text-muted); }

.blog-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 20px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text);
  margin-bottom: 10px;
}

.blog-excerpt {
  font-size: 14px;
  color: var(--text-sec);
  line-height: 1.6;
  margin-bottom: 16px;
  flex: 1;
}

.blog-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 18px;
}
.blog-tags span {
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 99px;
  background: rgba(99,102,241,0.10);
  color: var(--accent);
  border: 1px solid var(--border);
}

.blog-readmore {
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.3px;
  transition: gap var(--trans);
}
.blog-card:hover .blog-readmore { color: var(--accent-2); }

/* ── BLOG POST PAGE ───────────────────────────────────────────────────── */
.post-page {
  padding: 140px 0 96px;
}
.post-page .container { max-width: 760px; }

.post-back {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-sec);
  margin-bottom: 32px;
  transition: color var(--trans);
}
.post-back:hover { color: var(--accent); }

.post-header { margin-bottom: 40px; }

.post-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: var(--text-sec);
  margin-bottom: 16px;
}

.post-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(28px, 4.5vw, 44px);
  font-weight: 800;
  line-height: 1.15;
  color: var(--text);
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.post-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.post-tags span {
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 99px;
  background: rgba(99,102,241,0.10);
  color: var(--accent);
  border: 1px solid var(--border);
}

.post-cover {
  height: 220px;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 96px;
  margin-bottom: 40px;
}

.post-body {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text);
}
.post-body p { margin-bottom: 22px; color: var(--text-sec); }
.post-body p strong { color: var(--text); }
.post-body h2 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 26px;
  font-weight: 700;
  color: var(--text);
  margin: 40px 0 18px;
  letter-spacing: -0.3px;
}
.post-body h3 {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin: 32px 0 14px;
}
.post-body ul, .post-body ol {
  margin: 0 0 22px 24px;
  color: var(--text-sec);
}
.post-body ul { list-style: disc; }
.post-body ol { list-style: decimal; }
.post-body li { margin-bottom: 8px; }
.post-body a {
  color: var(--accent);
  border-bottom: 1px solid var(--border);
  transition: color var(--trans);
}
.post-body a:hover { color: var(--accent-2); }
.post-body blockquote {
  border-left: 3px solid var(--accent);
  background: rgba(99,102,241,0.06);
  padding: 16px 20px;
  margin: 24px 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text);
  font-style: italic;
}
.post-body code {
  background: var(--bg-elevated);
  border: 1px solid var(--border-sub);
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 14px;
  font-family: 'SF Mono', Menlo, monospace;
  color: var(--accent-2);
}
.post-body pre {
  background: var(--bg-elevated);
  border: 1px solid var(--border-sub);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  margin: 24px 0;
  overflow-x: auto;
}
.post-body pre code {
  background: none;
  border: none;
  padding: 0;
  color: var(--text);
}

.post-footer {
  margin-top: 56px;
  padding-top: 32px;
  border-top: 1px solid var(--border-sub);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.post-footer-author {
  font-size: 14px;
  color: var(--text-sec);
}
.post-footer-author strong { color: var(--text); }

/* ══════════════════════════════════════════════════════════════════════
   2D EFFECTS — spotlight, sheen, ripple, magnetic, parallax, underline
   ══════════════════════════════════════════════════════════════════════ */

/* ── Card spotlight (cursor-follow radial glow) ──────────────────────── */
.skill-category,
.project-card,
.blog-card,
.edu-card,
.contact-card {
  position: relative;
  overflow: hidden;
  --mx: 50%;
  --my: 50%;
}
.skill-category::before,
.project-card::before,
.blog-card::before,
.edu-card::before,
.contact-card::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(
    320px circle at var(--mx) var(--my),
    rgba(99, 102, 241, 0.18),
    rgba(6, 182, 212, 0.08) 35%,
    transparent 70%
  );
  opacity: 0;
  transition: opacity 0.35s ease;
  pointer-events: none;
  z-index: 0;
}
.skill-category:hover::before,
.project-card:hover::before,
.blog-card:hover::before,
.edu-card:hover::before,
.contact-card:hover::before {
  opacity: 1;
}
/* keep card content above the glow */
.skill-category > *,
.project-card > *,
.edu-card > *,
.contact-card > *,
.blog-card-body,
.blog-card-media { position: relative; z-index: 1; }

/* ── Diagonal sheen sweep on card hover ──────────────────────────────── */
.project-card::after,
.blog-card::after,
.edu-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: -75%;
  width: 50%;
  height: 100%;
  background: linear-gradient(
    115deg,
    transparent 0%,
    rgba(255, 255, 255, 0.06) 45%,
    rgba(255, 255, 255, 0.12) 50%,
    rgba(255, 255, 255, 0.06) 55%,
    transparent 100%
  );
  transform: skewX(-18deg);
  transition: left 0.85s cubic-bezier(0.22, 1, 0.36, 1);
  pointer-events: none;
  z-index: 2;
}
.project-card:hover::after,
.blog-card:hover::after,
.edu-card:hover::after {
  left: 130%;
}

/* ── Skill-tag bounce/tilt ───────────────────────────────────────────── */
.skill-tag {
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1),
              border-color var(--trans),
              color var(--trans),
              background var(--trans);
}
.skill-tag:hover {
  transform: translateY(-2px) rotate(-2deg) scale(1.05);
  background: rgba(99, 102, 241, 0.12);
}

/* ── Buttons: magnetic transform + ripple ────────────────────────────── */
.btn,
.nav-cta {
  position: relative;
  overflow: hidden;
  transform: translate(
    var(--mag-x, 0px),
    calc(var(--mag-y, 0px) + var(--lift, 0px))
  );
  transition: transform 0.25s cubic-bezier(0.22, 1, 0.36, 1),
              background var(--trans),
              border-color var(--trans),
              color var(--trans),
              box-shadow var(--trans);
  will-change: transform;
}
.btn .ripple,
.nav-cta .ripple {
  position: absolute;
  border-radius: 50%;
  transform: translate(-50%, -50%) scale(0);
  background: rgba(255, 255, 255, 0.45);
  pointer-events: none;
  animation: ripple-out 0.6s cubic-bezier(0.22, 1, 0.36, 1) forwards;
  mix-blend-mode: screen;
}
@keyframes ripple-out {
  to {
    transform: translate(-50%, -50%) scale(1);
    opacity: 0;
  }
}

/* ── Section title animated underline ────────────────────────────────── */
.section-title {
  position: relative;
  display: inline-block;
  padding-bottom: 14px;
}
.section-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  height: 3px;
  width: 0;
  border-radius: 99px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width 0.9s cubic-bezier(0.22, 1, 0.36, 1);
}
.section-title.underline-in::after { width: 72px; }

/* ── Hero orbs: smooth follow for mouse parallax ─────────────────────── */
.orb {
  transition: transform 0.6s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform;
}

/* ── Reduced-motion: kill all the new movement ───────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .skill-category::before,
  .project-card::before,
  .blog-card::before,
  .edu-card::before,
  .contact-card::before,
  .project-card::after,
  .blog-card::after,
  .edu-card::after { display: none; }

  .skill-tag:hover { transform: none; }
  .btn, .nav-cta { transform: none !important; }
  .section-title.underline-in::after { transition: none; }
  .orb { transition: none; }
}

/* ══════════════════════════════════════════════════════════════════════
   3D EFFECTS — perspective tilt cards + rotating tech cube
   ══════════════════════════════════════════════════════════════════════ */

/* 3D context on grid parents so children can rotate in real space */
.skills-grid,
.projects-grid,
.blog-grid,
.edu-grid,
.contact-grid { perspective: 1100px; }

/* Composable card transform: tilt (--rx, --ry) + lift (--card-lift) */
.skill-category,
.project-card,
.blog-card,
.edu-card,
.contact-card {
  transform-style: preserve-3d;
  transform:
    rotateX(var(--ry, 0deg))
    rotateY(var(--rx, 0deg))
    translateY(var(--card-lift, 0px))
    translateZ(0);
  transition:
    transform 0.35s cubic-bezier(0.22, 1, 0.36, 1),
    border-color var(--trans),
    box-shadow var(--trans);
  will-change: transform;
}

/* Inner depth — icons / emojis pop forward in 3D */
.project-icon,
.skill-cat-icon,
.contact-icon,
.edu-icon,
.blog-card-emoji {
  transform: translateZ(28px);
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

/* ── Tech-stack section + 3D rotating cube ───────────────────────────── */
#stack { text-align: center; }

.stack-intro {
  color: var(--text-sec);
  font-size: 16px;
  margin: -32px 0 56px;
}

.cube-stage {
  width: 240px;
  height: 240px;
  margin: 0 auto;
  perspective: 1200px;
}

.cube {
  position: relative;
  width: 240px;
  height: 240px;
  transform-style: preserve-3d;
  animation: cube-spin 18s linear infinite;
  cursor: grab;
  touch-action: none;
}
.cube:hover { animation-play-state: paused; }
/* Paused = animation removed so inline transform from drag actually applies.
   (animation-play-state: paused still wins over inline style.) */
.cube.paused { animation: none; }
.cube:active { cursor: grabbing; }

.cube-face {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 8px;
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow:
    inset 0 0 0 1px rgba(255, 255, 255, 0.05),
    0 0 60px rgba(99, 102, 241, 0.18);
  backface-visibility: hidden;
  user-select: none;
}
.cube-face .glyph {
  font-size: 64px;
  line-height: 1;
  filter: drop-shadow(0 4px 16px rgba(0, 0, 0, 0.35));
}
.cube-face .lbl {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 1.5px;
  color: #fff;
  text-transform: uppercase;
}

.cube-face.front  { transform: translateZ(120px);                 background: linear-gradient(135deg, #6366F1, #06B6D4); }
.cube-face.back   { transform: rotateY(180deg) translateZ(120px); background: linear-gradient(135deg, #06B6D4, #10B981); }
.cube-face.right  { transform: rotateY(90deg)  translateZ(120px); background: linear-gradient(135deg, #10B981, #F59E0B); }
.cube-face.left   { transform: rotateY(-90deg) translateZ(120px); background: linear-gradient(135deg, #F59E0B, #EF4444); }
.cube-face.top    { transform: rotateX(90deg)  translateZ(120px); background: linear-gradient(135deg, #EF4444, #6366F1); }
.cube-face.bottom { transform: rotateX(-90deg) translateZ(120px); background: linear-gradient(135deg, #4F46E5, #1E40AF); }

@keyframes cube-spin {
  0%   { transform: rotateX(-12deg) rotateY(0deg); }
  100% { transform: rotateX(-12deg) rotateY(360deg); }
}

.stack-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin: 56px auto 0;
  max-width: 720px;
}
.stack-tags span {
  padding: 8px 16px;
  font-size: 13px;
  font-weight: 600;
  border-radius: 99px;
  border: 1px solid var(--border-sub);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-sec);
  transition: var(--trans);
}
.stack-tags span:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(99, 102, 241, 0.08);
}

.stack-hint {
  margin-top: 28px;
  font-size: 13px;
  color: var(--text-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
}

/* Reduced motion: kill 3D motion, keep static depth */
@media (prefers-reduced-motion: reduce) {
  .skill-category,
  .project-card,
  .blog-card,
  .edu-card,
  .contact-card {
    transform: translateY(var(--card-lift, 0px));
    transition: border-color var(--trans), box-shadow var(--trans);
  }
  .project-icon, .skill-cat-icon, .contact-icon,
  .edu-icon, .blog-card-emoji { transform: none; }
  .cube { animation: none; transform: rotateX(-12deg) rotateY(-30deg); }
}