:root {
  --bg: #fafafa;
  --bg-alt: #f0f0f0;
  --fg: #111;
  --fg-muted: #555;
  --fg-subtle: #888;
  --accent: #0a0a0a;
  --accent-soft: #e8e8e8;
  --border: #ddd;
  --card-bg: #fff;
  --card-shadow: 0 1px 3px rgba(0,0,0,0.04), 0 4px 12px rgba(0,0,0,0.03);
  --card-shadow-hover: 0 4px 16px rgba(0,0,0,0.08), 0 8px 32px rgba(0,0,0,0.04);
  --glass-bg: rgba(255,255,255,0.55);
  --glass-border: rgba(255,255,255,0.4);
  --glow-color: rgba(0,0,0,0.03);
  --terminal-bg: #1a1a2e;
  --terminal-fg: #e0e0e0;
  --terminal-prompt: #6ee7b7;
  --terminal-key: #93c5fd;
  --radius: 16px;
  --spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

[data-theme="dark"] {
  --bg: #0a0a0a;
  --bg-alt: #111;
  --fg: #eee;
  --fg-muted: #aaa;
  --fg-subtle: #666;
  --accent: #fff;
  --accent-soft: #1a1a1a;
  --border: #222;
  --card-bg: #141414;
  --card-shadow: 0 1px 3px rgba(0,0,0,0.3), 0 4px 12px rgba(0,0,0,0.2);
  --card-shadow-hover: 0 4px 16px rgba(0,0,0,0.5), 0 8px 32px rgba(0,0,0,0.3);
  --glass-bg: rgba(20,20,20,0.55);
  --glass-border: rgba(50,50,50,0.4);
  --glow-color: rgba(255,255,255,0.04);
  --terminal-bg: #0d0d1a;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background 0.4s var(--smooth), color 0.4s var(--smooth);
}

a { color: var(--fg); text-decoration: none; }

/* ========== CURSOR GLOW ========== */

.cursor-glow {
  position: fixed;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 1;
  background: radial-gradient(circle, var(--glow-color) 0%, transparent 70%);
  transform: translate(-50%, -50%);
  transition: opacity 0.3s;
  opacity: 0;
}

.cursor-glow.active { opacity: 1; }

/* ========== SCROLL PROGRESS ========== */

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0%;
  background: var(--fg);
  z-index: 200;
  transition: width 0.1s linear;
}

/* ========== NAV ========== */

.nav {
  position: fixed;
  top: 2px;
  left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 40px;
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: color-mix(in srgb, var(--bg) 75%, transparent);
  transition: background 0.3s, border-color 0.3s;
}

.nav-logo { font-weight: 900; font-size: 18px; letter-spacing: -0.5px; }
.nav-links { display: flex; align-items: center; gap: 28px; font-size: 14px; font-weight: 500; }

.nav-cta {
  padding: 8px 18px;
  background: var(--accent);
  color: var(--bg) !important;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
}

.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  border-radius: 50%;
  width: 36px; height: 36px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--fg);
  transition: border-color 0.3s, background 0.3s;
}

.theme-toggle:hover { background: var(--accent-soft); }

[data-theme="light"] .icon-moon { display: none; }
[data-theme="dark"] .icon-sun { display: none; }

.magnetic { display: inline-block; transition: transform 0.25s var(--spring); will-change: transform; }

/* ========== HERO ========== */

.hero {
  padding: 100px 40px 56px;
  max-width: 800px;
  margin: 0 auto;
}

.hero-top-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 20px;
  opacity: 0;
  animation: fadeUp 0.6s 0.1s var(--spring) forwards;
}

.hero-badge {
  font-size: 12px;
  font-weight: 600;
  color: var(--fg-muted);
  padding: 5px 13px;
  border: 1px solid var(--border);
  border-radius: 100px;
  letter-spacing: 0.3px;
}

.hero-counter {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg-subtle);
  display: flex;
  align-items: center;
  gap: 4px;
}

.flip-counter { display: inline-flex; gap: 1px; font-weight: 700; color: var(--fg); }
.flip-digit { display: inline-block; overflow: hidden; height: 1.2em; line-height: 1.2em; position: relative; }
.flip-digit-inner { display: block; transition: transform 0.5s var(--spring); }
.flip-separator { color: var(--fg-subtle); font-weight: 400; }

.hero-title {
  font-size: clamp(48px, 6.5vw, 72px);
  font-weight: 900;
  letter-spacing: -3px;
  line-height: 1;
  margin-bottom: 18px;
  white-space: nowrap;
}

.hero-letter {
  display: inline-block;
  opacity: 0;
  transform: translateY(110%) rotateX(-90deg);
  transform-origin: bottom center;
  animation: letterIn 0.7s var(--spring) forwards;
}

.hero-letter.space { width: 0.25em; }

.hero-subtitle {
  font-size: 16px;
  color: var(--fg-muted);
  line-height: 1.7;
  margin-bottom: 22px;
  max-width: 520px;
}

.reveal-word {
  display: inline-block;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.35s, transform 0.35s var(--spring);
}

.reveal-word.revealed {
  opacity: 1;
  transform: translateY(0);
}

.hero-links {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.8s 0.7s var(--spring) forwards;
}

.hero-links a {
  font-size: 13px;
  font-weight: 500;
  padding: 8px 18px;
  border: 1px solid var(--border);
  border-radius: 100px;
  transition: background 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.hero-links a:hover {
  background: var(--accent-soft);
  border-color: var(--fg-subtle);
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}

.hero-cta {
  background: var(--accent) !important;
  color: var(--bg) !important;
  border-color: var(--accent) !important;
  font-weight: 600;
  position: relative;
  overflow: hidden;
  animation: ctaPulse 3s 1.5s ease-in-out infinite;
}

.hero-cta:hover {
  background: var(--accent) !important;
  box-shadow: 0 4px 20px rgba(0,0,0,0.15) !important;
}

.cta-arrow {
  display: inline-block;
  transition: transform 0.3s var(--spring);
}

.hero-cta:hover .cta-arrow {
  transform: translateX(4px);
}

.hero-cta::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
  animation: ctaShine 4s 2s ease-in-out infinite;
}

@keyframes ctaShine {
  0%, 100% { left: -100%; }
  50% { left: 100%; }
}

@keyframes ctaPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(0,0,0,0); }
  50% { box-shadow: 0 0 0 6px rgba(0,0,0,0.06); }
}

[data-theme="dark"] .hero-cta {
  animation-name: ctaPulseDark;
}

@keyframes ctaPulseDark {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255,255,255,0); }
  50% { box-shadow: 0 0 0 6px rgba(255,255,255,0.06); }
}

@keyframes letterIn {
  to { opacity: 1; transform: translateY(0) rotateX(0); }
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ========== SECTION LABELS ========== */

.section-label {
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--fg-subtle);
  margin-bottom: 28px;
}

/* ========== BENTO GRID ========== */

.bento-section {
  padding: 64px 40px;
  max-width: 800px;
  margin: 0 auto;
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
}

.bento-feature {
  grid-column: span 2;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--card-shadow);
  overflow: hidden;
  transition: box-shadow 0.3s, border-color 0.3s;
}

.bento-card-summary {
  padding: 22px;
  cursor: pointer;
  user-select: none;
  transition: background 0.2s;
  position: relative;
}

.bento-card-summary:hover { background: var(--accent-soft); }

.bento-card-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 4px;
}

.bento-card-top h3 {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.bento-date {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-subtle);
}

.bento-role {
  font-size: 13px;
  color: var(--fg-muted);
  display: block;
}

.bento-loc {
  font-size: 12px;
  color: var(--fg-subtle);
  display: block;
  margin-top: 2px;
}

.expand-chevron {
  position: absolute;
  right: 22px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--fg-subtle);
  transition: transform 0.4s var(--spring);
}

.bento-card.expanded .expand-chevron {
  transform: translateY(-50%) rotate(180deg);
}

.bento-card-expand {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s var(--smooth);
}

.bento-card.expanded .bento-card-expand {
  max-height: 500px;
}

.bento-card-expand-inner {
  padding: 0 22px 22px;
}

.bento-desc {
  font-size: 14px;
  color: var(--fg-muted);
  line-height: 1.6;
  margin-bottom: 14px;
}

.bento-tags { display: flex; flex-wrap: wrap; gap: 6px; }

.bento-tags span {
  font-size: 10px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 100px;
  background: var(--accent-soft);
  color: var(--fg-muted);
  letter-spacing: 0.3px;
  text-transform: uppercase;
}

/* ========== BENTO STAT ========== */

.bento-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 24px 10px;
  gap: 2px;
}

.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
}

.bento-stat-number {
  font-size: 36px;
  font-weight: 900;
  letter-spacing: -2px;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.bento-stat-number.counting {
  animation: pulseGlow 2.5s ease-in-out infinite;
}

.bento-stat-suffix {
  font-size: 18px;
  font-weight: 700;
  color: var(--fg-muted);
}

.bento-stat-label {
  font-size: 11px;
  color: var(--fg-subtle);
  font-weight: 500;
  margin-top: 4px;
}

@keyframes pulseGlow {
  0%, 100% { text-shadow: none; }
  50% { text-shadow: 0 0 24px rgba(0,0,0,0.06); }
}

[data-theme="dark"] .bento-stat-number.counting {
  animation-name: pulseGlowDark;
}

@keyframes pulseGlowDark {
  0%, 100% { text-shadow: none; }
  50% { text-shadow: 0 0 24px rgba(255,255,255,0.08); }
}

/* ========== TILT ========== */

.tilt-card {
  transform-style: preserve-3d;
  transition: transform 0.15s ease-out, box-shadow 0.15s ease-out;
  will-change: transform;
}

/* ========== EXPERIENCE VERTICAL TIMELINE ========== */

.section-exp {
  padding: 64px 40px;
  max-width: 800px;
  margin: 0 auto;
}

.exp-timeline {
  position: relative;
  padding-left: 28px;
}

.exp-timeline::before {
  content: '';
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--border);
  transition: background 0.3s;
}

.exp-item {
  position: relative;
  padding-bottom: 8px;
  cursor: pointer;
}

.exp-dot {
  position: absolute;
  left: -28px;
  top: 8px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--border);
  z-index: 2;
  transition: background 0.3s, border-color 0.3s, transform 0.3s var(--spring);
}

.exp-item:hover .exp-dot,
.exp-item.active .exp-dot {
  background: var(--fg);
  border-color: var(--fg);
  transform: scale(1.25);
}

.exp-item-content {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.exp-item:hover .exp-item-content {
  border-color: var(--fg-subtle);
  box-shadow: var(--card-shadow-hover);
}

.exp-item.active .exp-item-content {
  border-color: var(--fg);
  box-shadow: 0 0 0 1px var(--fg), var(--card-shadow-hover);
}

.exp-item-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}

.exp-item-header h3 {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.3px;
}

.exp-item-role {
  font-size: 13px;
  color: var(--fg-muted);
  display: block;
  margin-top: 2px;
}

.exp-item-date {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-subtle);
  white-space: nowrap;
  flex-shrink: 0;
  padding-top: 2px;
}

.exp-item-details {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--smooth), margin-top 0.4s var(--smooth);
}

.exp-item.active .exp-item-details {
  max-height: 400px;
  margin-top: 14px;
}

.exp-detail-list {
  list-style: none;
  margin-bottom: 8px;
}

.exp-detail-list li {
  font-size: 13px;
  color: var(--fg-muted);
  line-height: 1.6;
  padding: 2px 0 2px 14px;
  position: relative;
}

.exp-detail-list li::before {
  content: '—';
  position: absolute;
  left: 0;
  color: var(--fg-subtle);
  font-size: 11px;
}

.exp-detail-tools {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--fg-subtle);
}

/* ========== TERMINAL ========== */

.section-terminal {
  padding: 64px 40px;
  max-width: 800px;
  margin: 0 auto;
}

.skills-terminal {
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--card-shadow);
}

.terminal-bar {
  background: #16162a;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.terminal-dots { display: flex; gap: 6px; }
.terminal-dots span { width: 10px; height: 10px; border-radius: 50%; }
.terminal-dots span:nth-child(1) { background: #ff5f57; }
.terminal-dots span:nth-child(2) { background: #ffbd2e; }
.terminal-dots span:nth-child(3) { background: #28c840; }
.terminal-title { font-family: var(--font-mono); font-size: 12px; color: #888; }

.terminal-body {
  background: var(--terminal-bg);
  padding: 20px 24px;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--terminal-fg);
  line-height: 1.8;
  min-height: 200px;
  outline: none;
}

.terminal-history .terminal-line { display: flex; gap: 8px; flex-wrap: wrap; }
.terminal-prompt { color: var(--terminal-prompt); font-weight: 600; flex-shrink: 0; }
.terminal-cmd { color: #f8f8f2; }
.terminal-output { padding: 4px 0 8px 18px; }

.terminal-output-row {
  opacity: 0;
  animation: termLineIn 0.15s ease-out forwards;
}

.terminal-key { color: var(--terminal-key); }
.terminal-input-line { display: flex; align-items: center; gap: 8px; }
.terminal-input { color: #f8f8f2; white-space: pre; }
.terminal-cursor { animation: blink 1s step-end infinite; color: var(--terminal-prompt); }

@keyframes blink { 50% { opacity: 0; } }
@keyframes termLineIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 0.9; transform: translateY(0); }
}

.terminal-error { color: #f87171; }
.terminal-success { color: var(--terminal-prompt); }

/* ========== FOOTER ========== */

.footer {
  border-top: 1px solid var(--border);
  padding: 40px;
}

.footer-content {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-left { display: flex; flex-direction: column; gap: 3px; }
.footer-name { font-weight: 700; font-size: 15px; }
.footer-loc { font-size: 12px; color: var(--fg-subtle); }
.footer-links { display: flex; gap: 24px; font-size: 13px; }
.footer-links a { color: var(--fg-muted); }

.footer-badge {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--fg-subtle);
  padding: 4px 12px;
  border: 1px solid var(--border);
  border-radius: 100px;
  letter-spacing: 0.5px;
}

/* ========== SCROLL ANIMATIONS ========== */

[data-animate] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--spring), transform 0.6s var(--spring);
}

[data-animate].visible {
  opacity: 1;
  transform: translateY(0);
}

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

@media (max-width: 768px) {
  .nav { padding: 14px 20px; }
  .nav-links { gap: 16px; font-size: 13px; }
  .nav-links a:not(.nav-cta):not(.theme-toggle) { display: none; }

  .hero { padding: 88px 24px 40px; }
  .hero-title { font-size: 40px; letter-spacing: -2px; white-space: normal; }

  .bento-section { padding: 48px 24px; }
  .bento-grid { grid-template-columns: 1fr 1fr; }
  .bento-feature { grid-column: span 2; }

  .section-exp { padding: 48px 24px; }
  .exp-timeline { padding-left: 24px; }
  .exp-dot { left: -24px; }
  .exp-item-header { flex-direction: column; gap: 4px; }
  .exp-item-date { padding-top: 0; }

  .section-terminal { padding: 48px 24px; }

  .footer { padding: 32px 24px; }
  .footer-content { flex-direction: column; text-align: center; gap: 14px; }
  .footer-links { flex-direction: column; gap: 8px; align-items: center; }

  .tilt-card { transform: none !important; }
  .cursor-glow { display: none; }
}

@media (max-width: 480px) {
  .hero-title { font-size: 34px; letter-spacing: -1.5px; }
  .hero-subtitle { font-size: 14px; }
  .hero-links a { font-size: 12px; padding: 7px 14px; }
  .bento-grid { grid-template-columns: 1fr; }
  .bento-feature { grid-column: span 1; }
  .bento-stat { padding: 20px 10px; }
  .bento-stat-number { font-size: 28px; }
  .terminal-body { font-size: 12px; padding: 16px; }
}