:root {
  --bg: #f7f7f5;
  --surface: #ffffff;
  --ink: #121212;
  --muted: #616161;
  --line: #e7e7e2;
  --accent: #0f5cff;
  --glow: rgba(15, 92, 255, 0.13);
  --radius: 18px;
  --header-bg: rgba(247, 247, 245, 0.76);
  --logo-opacity: 0.17;
  --logo-filter: grayscale(1);
}

[data-theme="dark"] {
  --bg: #0f1114;
  --surface: #171a1f;
  --ink: #f5f7fa;
  --muted: #adb5c0;
  --line: #2a2f37;
  --accent: #78a6ff;
  --glow: rgba(120, 166, 255, 0.14);
  --header-bg: rgba(15, 17, 20, 0.75);
  --logo-opacity: 0.22;
  --logo-filter: grayscale(1) brightness(1.25);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--ink);
  font-family: "Manrope", sans-serif;
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  transition: background-color 220ms ease, color 220ms ease;
}

.logo-cloud {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}

.tech-logo {
  position: absolute;
  left: var(--x);
  top: var(--y);
  width: var(--size);
  height: var(--size);
  opacity: var(--logo-opacity);
  filter: var(--logo-filter);
  transform: translate3d(var(--tx, 0px), var(--ty, 0px), 0);
  will-change: transform;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, #0f5cff, #00a6fb);
  z-index: 50;
}

.shell {
  width: min(1024px, 92%);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: saturate(140%) blur(6px);
  background: var(--header-bg);
  border-bottom: 1px solid rgba(18, 18, 18, 0.05);
}

.nav {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-header,
main,
.footer {
  position: relative;
  z-index: 2;
}

.brand {
  color: var(--ink);
  text-decoration: none;
  font-weight: 800;
  letter-spacing: -0.02em;
  font-size: 1.1rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.nav-links a {
  text-decoration: none;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 600;
}

.theme-toggle {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  border-radius: 999px;
  padding: 0.3rem 0.68rem;
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
}

.contact-link {
  color: var(--ink) !important;
}

.hero {
  padding: 6.2rem 0 2.2rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 1.2rem;
  align-items: start;
}

.hero-photo {
  padding: 0.7rem;
}

.pacman-card {
  display: grid;
  gap: 0.7rem;
}

.pacman-head {
  display: flex;
  justify-content: space-between;
  gap: 0.6rem;
}

.pacman-head .meta {
  margin: 0;
}

#pacmanCanvas {
  width: 100%;
  max-width: 270px;
  aspect-ratio: 1 / 1;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #090b13;
}

.pacman-controls {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.pacman-controls .meta {
  margin: 0;
}

.kicker {
  margin: 0;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--accent);
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 {
  margin-top: 0.75rem;
  font-size: clamp(2.1rem, 7vw, 4.8rem);
  max-width: 12ch;
}

.lead {
  margin: 1.15rem 0 0;
  color: var(--muted);
  max-width: 62ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1.8rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.92rem;
  padding: 0.58rem 1rem;
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

[data-theme="dark"] .btn {
  background: #1b1f26;
}

[data-theme="dark"] .btn.primary {
  background: #eef3ff;
  color: #121212;
}

[data-theme="dark"] .meta-grid li,
[data-theme="dark"] .panel {
  background: #171a1f;
}

[data-theme="dark"] .site-header {
  border-bottom-color: rgba(255, 255, 255, 0.08);
}

[data-theme="dark"] .panel li {
  color: #d7dde6;
}

[data-theme="dark"] .meta {
  color: #b7bec9;
}

[data-theme="dark"] .meta-grid span {
  color: #a8b1bd;
}

.btn:hover {
  transform: translateY(-2px);
  border-color: #cbcbcb;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.08);
}

.btn.primary {
  color: #fff;
  border-color: transparent;
  background: var(--ink);
}

.meta-grid {
  list-style: none;
  padding: 0;
  margin: 2.2rem 0 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(140px, 1fr));
  gap: 0.8rem;
}

.meta-grid li {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
  padding: 0.85rem;
}

.meta-grid span {
  display: block;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.7rem;
  text-transform: uppercase;
  color: #7b7b7b;
}

.meta-grid strong {
  font-size: 0.94rem;
}

.section {
  padding: 2.8rem 0 0.8rem;
}

.section-head {
  margin-bottom: 0.9rem;
}

h2 {
  font-size: clamp(1.35rem, 3.2vw, 2.2rem);
}

.stack,
.skills {
  display: grid;
  gap: 0.8rem;
}

.skills {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.panel {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 1.1rem;
  transition: border-color 220ms ease, transform 220ms ease;
}

.panel::before {
  content: "";
  position: absolute;
  inset: -50% auto auto -50%;
  width: 240px;
  height: 240px;
  border-radius: 999px;
  pointer-events: none;
  background: radial-gradient(circle, var(--glow) 0%, rgba(15, 92, 255, 0) 70%);
  transform: translate(var(--mx, -120px), var(--my, -120px));
  transition: transform 120ms linear;
}

.reactive-panel:hover {
  border-color: #d7d7d7;
  transform: translateY(-3px);
}

.meta {
  margin: 0.4rem 0 0;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  color: #6f6f6f;
}

.panel ul {
  margin: 0.78rem 0 0;
  padding-left: 1.05rem;
}

.panel li {
  margin-bottom: 0.38rem;
  color: #2c2c2c;
}

.muted {
  color: var(--muted);
}

.footer {
  display: flex;
  justify-content: space-between;
  border-top: 1px solid var(--line);
  margin-top: 2rem;
  padding: 1.8rem 0 2.4rem;
  color: var(--muted);
  font-size: 0.9rem;
}

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 600ms ease, transform 600ms ease;
}

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

@media (max-width: 840px) {
  .logo-cloud {
    display: none;
  }

  .hero {
    padding-top: 4.2rem;
  }

  .hero-grid {
    grid-template-columns: 1fr;
  }

  .skills,
  .meta-grid {
    grid-template-columns: 1fr;
  }

  .footer {
    flex-direction: column;
    gap: 0.3rem;
  }
}

@media (max-width: 560px) {
  .nav {
    min-height: 58px;
  }

  .nav-links {
    gap: 0.7rem;
  }

  .nav-links a {
    font-size: 0.82rem;
  }

  .panel {
    padding: 0.95rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal,
  .panel,
  .btn {
    transition: none;
  }

  .panel::before {
    display: none;
  }

  .tech-logo {
    animation: none;
  }
}