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

:root {
  --bg: #080b12;
  --bg-alt: #0d1120;
  --surface: #111827;
  --surface-2: #1a2235;
  --border: rgba(99,120,180,0.15);
  --border-glow: rgba(99,179,237,0.25);
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --accent: #63b3ed;
  --accent-2: #a78bfa;
  --accent-3: #34d399;
  --grad: linear-gradient(135deg, #63b3ed, #a78bfa);
  --grad-2: linear-gradient(135deg, #a78bfa, #f472b6);
  --shadow: 0 4px 32px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 40px rgba(99,179,237,0.12);
  --radius: 16px;
  --radius-sm: 10px;
  --transition: 0.35s cubic-bezier(0.4,0,0.2,1);
}

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

body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { display: block; max-width: 100%; }

/* ── CURSOR GLOW ─────────────────────────────────────────── */
.cursor-glow {
  position: fixed;
  top: 0; left: 0;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(99,179,237,0.07) 0%, transparent 70%);
  pointer-events: none;
  transform: translate(-50%,-50%);
  z-index: 0;
  transition: 0.1s linear;
}

/* ── SCROLLBAR ───────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--surface-2); border-radius: 3px; }

/* ── GRADIENT TEXT ───────────────────────────────────────── */
.gradient-text {
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── NAV ────────────────────────────────────────────────── */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background var(--transition), box-shadow var(--transition);
}
#navbar.scrolled {
  background: rgba(8,11,18,0.85);
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 1200px;
  margin: 0 auto;
  padding: 18px 32px;
}
.nav-logo {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  background: var(--grad);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.dot { -webkit-text-fill-color: var(--accent); }
.nav-links { display: flex; gap: 36px; }
.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition);
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 0; height: 2px;
  background: var(--grad);
  border-radius: 2px;
  transition: width var(--transition);
}
.nav-links a:hover { color: var(--text); }
.nav-links a:hover::after { width: 100%; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

.mobile-menu {
  display: none;
  flex-direction: column;
  background: rgba(8,11,18,0.97);
  backdrop-filter: blur(20px);
  border-top: 1px solid var(--border);
  padding: 0;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
}
.mobile-menu.open { max-height: 400px; padding: 16px 0; display: flex; }
.mobile-link {
  padding: 12px 32px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition), background var(--transition);
}
.mobile-link:hover { color: var(--text); background: var(--surface); }

/* ── HERO ────────────────────────────────────────────────── */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(99,179,237,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99,179,237,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
}
.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
}
.orb-1 {
  width: 600px; height: 600px;
  top: -200px; right: -100px;
  background: radial-gradient(circle, rgba(99,179,237,0.18), transparent 70%);
  animation: floatOrb 10s ease-in-out infinite alternate;
}
.orb-2 {
  width: 500px; height: 500px;
  bottom: -150px; left: -100px;
  background: radial-gradient(circle, rgba(167,139,250,0.15), transparent 70%);
  animation: floatOrb 13s ease-in-out infinite alternate-reverse;
}
.orb-3 {
  width: 300px; height: 300px;
  top: 50%; left: 50%;
  transform: translate(-50%,-50%);
  background: radial-gradient(circle, rgba(52,211,153,0.08), transparent 70%);
  animation: floatOrb 8s ease-in-out infinite alternate;
}
@keyframes floatOrb {
  0% { transform: translateY(0) scale(1); }
  100% { transform: translateY(-40px) scale(1.05); }
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 820px;
  padding: 0 24px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(99,179,237,0.08);
  border: 1px solid rgba(99,179,237,0.2);
  border-radius: 100px;
  padding: 8px 18px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 0.5px;
  margin-bottom: 28px;
}
.badge-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent-3);
  box-shadow: 0 0 8px var(--accent-3);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%,100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.8); }
}

.hero-name {
  font-size: clamp(2.4rem, 7vw, 5rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -2px;
  margin-bottom: 20px;
}
.hero-tagline {
  font-size: clamp(1rem, 2.5vw, 1.25rem);
  color: var(--text-muted);
  margin-bottom: 12px;
  min-height: 2em;
}
.typed-text { color: var(--accent); font-weight: 600; }
.cursor-blink {
  color: var(--accent);
  animation: blink 0.9s step-end infinite;
  font-weight: 300;
}
@keyframes blink { 50% { opacity: 0; } }

.hero-location {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-dim);
  font-size: 0.875rem;
  margin-bottom: 36px;
}
.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.btn-primary {
  padding: 14px 32px;
  background: var(--grad);
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: 100px;
  transition: transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 4px 20px rgba(99,179,237,0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(99,179,237,0.45);
}
.btn-ghost {
  padding: 14px 32px;
  background: transparent;
  border: 1px solid var(--border-glow);
  color: var(--text);
  font-weight: 500;
  font-size: 0.9rem;
  border-radius: 100px;
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
}
.btn-ghost:hover {
  background: rgba(99,179,237,0.08);
  border-color: var(--accent);
  transform: translateY(-2px);
}

.hero-socials {
  display: flex;
  gap: 20px;
  justify-content: center;
}
.hero-socials a {
  width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
}
.hero-socials a:hover {
  background: var(--surface-2);
  color: var(--accent);
  border-color: var(--accent);
  transform: translateY(-3px);
}

.scroll-hint {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-dim);
  font-size: 0.7rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  z-index: 2;
}
.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, transparent, var(--text-dim));
  animation: scrollDown 2s ease-in-out infinite;
}
@keyframes scrollDown {
  0% { opacity: 0; transform: scaleY(0); transform-origin: top; }
  50% { opacity: 1; transform: scaleY(1); }
  100% { opacity: 0; transform: scaleY(1) translateY(100%); }
}

/* ── SECTIONS ────────────────────────────────────────────── */
.section { padding: 100px 0; }
.section-alt { background: var(--bg-alt); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 32px; }

.section-header { margin-bottom: 60px; }
.section-tag {
  display: inline-block;
  font-family: 'Fira Code', monospace;
  font-size: 0.78rem;
  color: var(--accent);
  letter-spacing: 1px;
  margin-bottom: 10px;
}
.section-header h2 {
  font-size: clamp(1.8rem, 4vw, 2.75rem);
  font-weight: 800;
  letter-spacing: -1px;
}

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

/* ── ABOUT ───────────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 60px;
  align-items: start;
}
.about-text p {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 20px;
  line-height: 1.8;
}
.about-text strong { color: var(--text); }
.about-text em { color: var(--accent); font-style: normal; }

.about-stats {
  display: flex;
  gap: 16px;
  margin-top: 36px;
  flex-wrap: wrap;
}
.stat-card {
  flex: 1;
  min-width: 100px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 20px 16px;
  text-align: center;
  transition: border-color var(--transition), transform var(--transition);
}
.stat-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-4px);
}
.stat-num {
  display: block;
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 4px;
}
.stat-label {
  font-size: 0.75rem;
  color: var(--text-dim);
  letter-spacing: 0.3px;
}

.card-glow-border {
  padding: 1px;
  background: var(--grad);
  border-radius: calc(var(--radius) + 1px);
}
.about-card-inner {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: center;
}
.profile-avatar {
  position: relative;
  width: 90px; height: 90px;
  margin: 0 auto 16px;
}
.avatar-initials {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 90px; height: 90px;
  border-radius: 50%;
  background: var(--grad);
  font-size: 1.6rem;
  font-weight: 800;
  color: #fff;
}
.avatar-ring {
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 2px solid rgba(99,179,237,0.3);
  animation: ringPulse 3s ease-in-out infinite;
}
@keyframes ringPulse {
  0%,100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 0.8; transform: scale(1.05); }
}
.about-card-inner h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.card-role {
  font-size: 0.82rem;
  color: var(--accent);
  margin-bottom: 24px;
}
.contact-list { text-align: left; }
.contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 0;
  border-bottom: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--text-muted);
  transition: color var(--transition);
}
.contact-item:last-child { border-bottom: none; }
.contact-item a:hover { color: var(--accent); }

/* ── TIMELINE / EDUCATION ─────────────────────────────────── */
.timeline {
  position: relative;
  padding-left: 36px;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 10px; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), var(--accent-2), transparent);
  border-radius: 2px;
}
.timeline-item {
  position: relative;
  margin-bottom: 40px;
}
.timeline-item:last-child { margin-bottom: 0; }
.timeline-dot {
  position: absolute;
  left: -32px; top: 20px;
  width: 14px; height: 14px;
  border-radius: 50%;
  background: var(--surface);
  border: 2px solid var(--text-dim);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.timeline-dot.active {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 14px rgba(99,179,237,0.6);
}
.timeline-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.timeline-card:hover {
  border-color: var(--border-glow);
  transform: translateX(6px);
  box-shadow: var(--shadow-glow);
}
.edu-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 12px;
}
.edu-badge {
  display: inline-block;
  background: rgba(52,211,153,0.1);
  color: var(--accent-3);
  border: 1px solid rgba(52,211,153,0.25);
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 600;
  padding: 2px 10px;
  margin-bottom: 8px;
  letter-spacing: 0.5px;
}
.timeline-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.edu-school { font-size: 0.875rem; color: var(--text-muted); }
.edu-gpa { text-align: right; white-space: nowrap; }
.gpa-num {
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1;
}
.gpa-label {
  font-size: 0.8rem;
  color: var(--text-dim);
}
.edu-period {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-top: 8px;
}

/* ── PROJECTS ─────────────────────────────────────────────── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}
.project-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--grad);
  opacity: 0;
  transition: opacity var(--transition);
}
.project-card:hover::before { opacity: 1; }
.project-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-6px);
  box-shadow: var(--shadow-glow);
}
.project-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.project-icon, .project-icon-2 {
  width: 48px; height: 48px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(99,179,237,0.1);
  color: var(--accent);
  border: 1px solid rgba(99,179,237,0.2);
}
.project-icon-2 {
  background: rgba(167,139,250,0.1);
  color: var(--accent-2);
  border-color: rgba(167,139,250,0.2);
}
.project-period {
  font-family: 'Fira Code', monospace;
  font-size: 0.72rem;
  color: var(--text-dim);
}
.project-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: -8px;
}
.project-subtitle {
  font-size: 0.875rem;
  color: var(--accent);
  font-weight: 500;
}
.project-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.75;
}
.project-features {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.feature-chip {
  font-size: 0.72rem;
  padding: 4px 10px;
  border-radius: 100px;
  background: rgba(52,211,153,0.08);
  border: 1px solid rgba(52,211,153,0.2);
  color: var(--accent-3);
  font-weight: 500;
}
.project-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.stack-tag {
  font-family: 'Fira Code', monospace;
  font-size: 0.72rem;
  padding: 4px 10px;
  border-radius: 6px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-muted);
}
.project-links { margin-top: auto; }
.project-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--accent);
  transition: gap var(--transition), opacity var(--transition);
}
.project-link:hover { gap: 12px; opacity: 0.8; }

/* ── SKILLS ──────────────────────────────────────────────── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.skill-category {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 28px 24px;
  transition: border-color var(--transition), transform var(--transition);
}
.skill-category:hover {
  border-color: var(--border-glow);
  transform: translateY(-4px);
}
.skill-cat-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}
.skill-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: rgba(99,179,237,0.1);
  border: 1px solid rgba(99,179,237,0.2);
  color: var(--accent);
  display: flex; align-items: center; justify-content: center;
}
.skill-cat-header h3 {
  font-size: 0.95rem;
  font-weight: 700;
}
.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.skill-tag {
  font-size: 0.8rem;
  font-weight: 500;
  padding: 6px 14px;
  border-radius: 8px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform var(--transition);
  cursor: default;
}
.skill-tag:hover {
  background: rgba(99,179,237,0.08);
  color: var(--accent);
  border-color: rgba(99,179,237,0.3);
  transform: translateY(-2px);
}
.skill-tag.highlight {
  background: rgba(167,139,250,0.08);
  border-color: rgba(167,139,250,0.25);
  color: var(--accent-2);
}
.skill-tag.highlight:hover {
  background: rgba(167,139,250,0.15);
  color: var(--accent-2);
  border-color: rgba(167,139,250,0.5);
}

/* ── CONTACT ─────────────────────────────────────────────── */
.contact-intro {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 48px;
  max-width: 560px;
}
.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.contact-card {
  display: flex;
  align-items: center;
  gap: 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 28px;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.contact-card:hover {
  border-color: var(--border-glow);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}
.contact-card-icon {
  width: 56px; height: 56px;
  flex-shrink: 0;
  border-radius: 14px;
  background: rgba(99,179,237,0.08);
  border: 1px solid rgba(99,179,237,0.2);
  color: var(--accent);
  display: flex; align-items: center; justify-content: center;
  transition: background var(--transition);
}
.contact-card:hover .contact-card-icon { background: rgba(99,179,237,0.14); }
.contact-label {
  font-size: 0.72rem;
  color: var(--text-dim);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  margin-bottom: 4px;
}
.contact-value {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  word-break: break-all;
}

/* ── FOOTER ──────────────────────────────────────────────── */
footer {
  background: var(--bg-alt);
  border-top: 1px solid var(--border);
  padding: 32px 0;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}
footer p { font-size: 0.82rem; color: var(--text-dim); }
.footer-links {
  display: flex;
  gap: 24px;
}
.footer-links a {
  font-size: 0.82rem;
  color: var(--text-dim);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--accent); }

/* ── RESPONSIVE ─────────────────────────────────────────── */
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .skills-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .mobile-menu { display: flex; max-height: 0; }
  .mobile-menu.open { max-height: 400px; }
}
@media (max-width: 600px) {
  .container { padding: 0 20px; }
  .section { padding: 70px 0; }
  .nav-inner { padding: 16px 20px; }
  .hero-name { letter-spacing: -1px; }
  .edu-header { flex-direction: column; }
  .edu-gpa { text-align: left; }
  .footer-inner { flex-direction: column; text-align: center; }
}