:root {
  --bg: #ffffff;
  --bg-soft: #f5f5f5;
  --bg-elevated: #fafafa;
  --text: #000000;
  --text-soft: #555555;
  --text-muted: #999999;
  --border: #000000;
  --shadow: #000000;
  --accent: #FFD60A;
  --blob-opacity: 0.55;
}

[data-theme="dark"] {
  --bg: #0A0A0F;
  --bg-soft: #15151C;
  --bg-elevated: #121218;
  --text: #F5F5F7;
  --text-soft: #B0B0B8;
  --text-muted: #6E6E78;
  --border: #F5F5F7;
  --shadow: #F5F5F7;
  --accent: #FFD60A;
  --blob-opacity: 0.4;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  transition: background 0.4s ease, color 0.4s ease;
}

.hero {
  position: relative;
  min-height: 100vh;
  width: 100%;
  overflow: hidden;
  display: flex;
  align-items: center;
  padding: 0 6vw;
  background: var(--bg);
  transition: background 0.4s ease;
}

.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: var(--blob-opacity);
  pointer-events: none;
  will-change: transform;
  transition: opacity 0.4s ease;
}

.blob-red {
  width: 500px;
  height: 500px;
  background: #FF3B3B;
  top: -100px;
  left: -100px;
  animation: floatRed 22s ease-in-out infinite;
}

.blob-yellow {
  width: 450px;
  height: 450px;
  background: #FFD60A;
  bottom: -120px;
  left: 30%;
  animation: floatYellow 26s ease-in-out infinite;
}

.blob-blue {
  width: 550px;
  height: 550px;
  background: #2E8BFF;
  top: 20%;
  right: -150px;
  animation: floatBlue 30s ease-in-out infinite;
}

@keyframes floatRed {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50%      { transform: translate(60px, 80px) scale(1.1); }
}

@keyframes floatYellow {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50%      { transform: translate(-80px, -60px) scale(1.15); }
}

@keyframes floatBlue {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50%      { transform: translate(-50px, 70px) scale(1.05); }
}

.hero-inner {
  position: relative;
  z-index: 2;
  width: 100%;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 4vw;
  align-items: center;
}

.hero-left {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.hero-title {
  font-family: 'Unbounded', sans-serif;
  font-weight: 900;
  font-size: clamp(64px, 11vw, 180px);
  line-height: 0.9;
  letter-spacing: -0.03em;
  display: flex;
  flex-direction: column;
  color: var(--text);
}

.hero-title span {
  display: block;
  opacity: 0;
  transform: translateY(60px);
  animation: titleIn 0.8s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.hero-title span:nth-child(2) {
  animation-delay: 0.15s;
}

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

.hero-subtitle {
  font-size: clamp(16px, 1.4vw, 22px);
  font-weight: 500;
  max-width: 420px;
  color: var(--text-soft);
  opacity: 0;
  animation: fadeUp 0.8s 0.4s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

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

.btn-primary {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 18px 36px;
  font-family: 'Inter', sans-serif;
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: 0;
  cursor: pointer;
  box-shadow: 6px 6px 0 var(--shadow);
  transition: all 0.15s ease, background 0.4s ease, color 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
  opacity: 0;
  animation: fadeUp 0.8s 0.6s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.btn-primary:hover {
  background: var(--bg-soft);
  box-shadow: 3px 3px 0 var(--shadow);
  transform: translate(3px, 3px);
}

.btn-primary:active {
  background: var(--accent);
  color: #000;
  box-shadow: 0 0 0 var(--shadow);
  transform: translate(6px, 6px);
}

.btn-primary .arrow {
  display: inline-block;
  transition: transform 0.3s ease;
}

.btn-primary:hover .arrow {
  transform: translateY(4px);
}

.hero-right {
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  max-width: 600px;
  justify-self: end;
}

#pixelCanvas {
  width: 100%;
  height: 100%;
  display: block;
}

.cards-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 6vw;
  background: var(--bg);
  overflow: hidden;
  transition: background 0.4s ease;
}

.cards-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  width: 100%;
  max-width: 1200px;
}

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--bg);
  border: 2px solid var(--border);
  box-shadow: 6px 6px 0 var(--shadow);
  text-decoration: none;
  color: var(--text);
  transition: all 0.2s ease, background 0.4s ease, color 0.4s ease, border-color 0.4s ease;
  overflow: hidden;
  opacity: 0;
  transform: translateY(40px);
}

.card.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.22, 1, 0.36, 1),
              box-shadow 0.2s ease, background 0.2s ease, color 0.4s ease, border-color 0.4s ease;
}

.card:nth-child(1) { transition-delay: 0s; }
.card:nth-child(2) { transition-delay: 0.1s; }
.card:nth-child(3) { transition-delay: 0.2s; }

.card:hover {
  background: var(--bg-soft);
  box-shadow: 10px 10px 0 var(--shadow);
  transform: translate(-4px, -4px);
}

.card-image {
  width: 100%;
  aspect-ratio: 16 / 10;
  border-bottom: 2px solid var(--border);
  overflow: hidden;
  background: var(--bg-elevated);
  transition: border-color 0.4s ease, background 0.4s ease;
}

.card-canvas {
  width: 100%;
  height: 100%;
  display: block;
  transition: transform 0.4s ease;
}

.card:hover .card-canvas {
  transform: scale(1.05);
}

.card-body {
  padding: 24px 24px 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.card-title {
  font-family: 'Unbounded', sans-serif;
  font-weight: 700;
  font-size: 22px;
  letter-spacing: -0.01em;
  color: var(--text);
}

.card-desc {
  font-size: 15px;
  line-height: 1.5;
  color: var(--text-soft);
}

.card-arrow {
  display: inline-block;
  margin: 8px 24px 24px;
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
  transition: transform 0.3s ease;
}

.card:hover .card-arrow {
  transform: translateX(8px);
}

.projects-section {
  position: relative;
  padding: 120px 6vw;
  background: var(--bg);
  transition: background 0.4s ease;
}

.projects-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 120px;
}

.projects-header {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 40px;
}

.projects-title {
  font-family: 'Unbounded', sans-serif;
  font-weight: 900;
  font-size: clamp(48px, 8vw, 120px);
  line-height: 0.9;
  letter-spacing: -0.03em;
  display: flex;
  flex-direction: column;
  color: var(--text);
}

.projects-subtitle {
  font-size: clamp(16px, 1.4vw, 20px);
  color: var(--text-soft);
  max-width: 500px;
}

.project {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 60px;
  align-items: center;
  opacity: 0;
  transform: translateY(60px);
  transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.22, 1, 0.36, 1);
}

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

.project-reverse {
  grid-template-columns: 1fr 1.1fr;
}

.project-reverse .project-preview { order: 2; }
.project-reverse .project-info    { order: 1; }

.project-preview {
  width: 100%;
  aspect-ratio: 4 / 3;
  border: 2px solid var(--border);
  box-shadow: 8px 8px 0 var(--shadow);
  overflow: hidden;
  background: var(--bg-elevated);
  transition: box-shadow 0.3s ease, transform 0.3s ease, border-color 0.4s ease, background 0.4s ease;
}

.project:hover .project-preview {
  box-shadow: 14px 14px 0 var(--shadow);
  transform: translate(-6px, -6px);
}

.project-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.project:hover .project-preview img {
  transform: scale(1.05);
}

.project-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.project-number {
  font-family: 'Unbounded', sans-serif;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.15em;
  color: var(--text-muted);
}

.project-name {
  font-family: 'Unbounded', sans-serif;
  font-weight: 700;
  font-size: clamp(28px, 3vw, 42px);
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--text);
}

.project-desc {
  font-size: 17px;
  line-height: 1.6;
  color: var(--text-soft);
  max-width: 480px;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
}

.project-tags li {
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  background: var(--bg);
  border: 2px solid var(--border);
  box-shadow: 3px 3px 0 var(--shadow);
  color: var(--text);
  transition: background 0.4s ease, color 0.4s ease, border-color 0.4s ease;
}

.project-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 16px;
  color: var(--text);
  text-decoration: none;
  margin-top: 8px;
  transition: gap 0.3s ease, color 0.4s ease;
}

.project-link:hover {
  gap: 16px;
}

.project-arrow {
  transition: transform 0.3s ease;
}

.project-link:hover .project-arrow {
  transform: translateX(4px);
}

.github-section {
  position: relative;
  padding: 60px 6vw 120px;
  background: var(--bg);
  transition: background 0.4s ease;
}

.github-card {
  position: relative;
  display: block;
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 60px;
  border: 2px solid var(--border);
  box-shadow: 10px 10px 0 var(--shadow);
  background: var(--bg);
  overflow: hidden;
  text-decoration: none;
  color: var(--text);
  transition: box-shadow 0.3s ease, transform 0.3s ease, background 0.4s ease, color 0.4s ease, border-color 0.4s ease;
}

.github-card:hover {
  box-shadow: 18px 18px 0 var(--shadow);
  transform: translate(-8px, -8px);
}

.github-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.35;
  pointer-events: none;
}

#githubCanvas {
  width: 100%;
  height: 100%;
  display: block;
}

.github-content {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 24px;
  max-width: 720px;
}

.github-top {
  display: flex;
  align-items: center;
  gap: 16px;
}

.github-icon {
  width: 40px;
  height: 40px;
  color: var(--text);
  transition: color 0.4s ease;
}

.github-badge {
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  background: var(--bg);
  border: 2px solid var(--border);
  box-shadow: 3px 3px 0 var(--shadow);
  color: var(--text);
  transition: background 0.4s ease, color 0.4s ease, border-color 0.4s ease;
}

.github-title {
  font-family: 'Unbounded', sans-serif;
  font-weight: 900;
  font-size: clamp(40px, 6vw, 88px);
  line-height: 0.95;
  letter-spacing: -0.03em;
  color: var(--text);
}

.github-accent {
  color: #2E8BFF;
}

.github-desc {
  font-size: clamp(16px, 1.3vw, 19px);
  line-height: 1.6;
  color: var(--text-soft);
  max-width: 560px;
}

.github-cta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: 12px;
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 18px;
  padding: 16px 28px;
  background: var(--bg);
  border: 2px solid var(--border);
  box-shadow: 6px 6px 0 var(--shadow);
  align-self: flex-start;
  color: var(--text);
  transition: all 0.15s ease, background 0.4s ease, color 0.4s ease, border-color 0.4s ease;
}

.github-card:hover .github-cta {
  background: var(--accent);
  color: #000;
  box-shadow: 3px 3px 0 var(--shadow);
  transform: translate(3px, 3px);
}

.github-arrow {
  transition: transform 0.3s ease;
}

.github-card:hover .github-arrow {
  transform: translateX(6px);
}

.contact-section {
  position: relative;
  padding: 120px 6vw;
  background: var(--bg);
  transition: background 0.4s ease;
}

.contact-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 64px;
}

.contact-header {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-title {
  font-family: 'Unbounded', sans-serif;
  font-weight: 900;
  font-size: clamp(48px, 9vw, 140px);
  line-height: 0.9;
  letter-spacing: -0.03em;
  color: var(--text);
}

.contact-subtitle {
  font-size: clamp(16px, 1.4vw, 20px);
  line-height: 1.6;
  color: var(--text-soft);
  max-width: 560px;
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.contact-item {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 32px 28px;
  background: var(--bg);
  border: 2px solid var(--border);
  box-shadow: 6px 6px 0 var(--shadow);
  text-decoration: none;
  color: var(--text);
  transition: all 0.2s ease, background 0.4s ease, color 0.4s ease, border-color 0.4s ease;
  overflow: hidden;
}

.contact-item:hover {
  background: var(--bg-soft);
  box-shadow: 10px 10px 0 var(--shadow);
  transform: translate(-4px, -4px);
}

.contact-item:active {
  background: var(--accent);
  color: #000;
  box-shadow: 0 0 0 var(--shadow);
  transform: translate(6px, 6px);
}

.contact-label {
  font-family: 'Unbounded', sans-serif;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.contact-value {
  font-family: 'Unbounded', sans-serif;
  font-weight: 700;
  font-size: clamp(18px, 1.6vw, 22px);
  letter-spacing: -0.01em;
  word-break: break-word;
  color: var(--text);
}

.contact-hint {
  font-size: 14px;
  color: var(--text-soft);
  margin-top: 4px;
}

.footer {
  background: var(--text);
  color: var(--bg);
  padding: 40px 6vw;
  transition: background 0.4s ease, color 0.4s ease;
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-logo {
  font-family: 'Unbounded', sans-serif;
  font-weight: 900;
  font-size: 20px;
  letter-spacing: -0.02em;
}

.footer-copy {
  font-size: 14px;
  opacity: 0.6;
}

.theme-switcher {
  position: fixed;
  top: 24px;
  right: 24px;
  z-index: 1000;
  display: flex;
  gap: 0;
  background: var(--bg);
  border: 2px solid var(--border);
  box-shadow: 4px 4px 0 var(--shadow);
  transition: background 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}

.theme-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  background: transparent;
  border: none;
  border-right: 2px solid var(--border);
  cursor: pointer;
  color: var(--text);
  transition: background 0.2s ease, color 0.2s ease, border-color 0.4s ease;
}

.theme-btn:last-child {
  border-right: none;
}

.theme-btn svg {
  width: 18px;
  height: 18px;
}

.theme-btn:hover {
  background: var(--bg-soft);
}

.theme-btn.active {
  background: var(--accent);
  color: #000;
}

@media (max-width: 900px) {
  .hero {
    padding: 100px 6vw 60px;
    min-height: auto;
  }

  .hero-inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .hero-right {
    justify-self: center;
    max-width: 400px;
  }

  .hero-title {
    font-size: clamp(56px, 16vw, 120px);
  }

  .cards-inner {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .cards-section {
    padding: 60px 6vw;
  }

  .projects-section {
    padding: 80px 6vw;
  }

  .projects-inner {
    gap: 80px;
  }

  .project,
  .project-reverse {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .project-reverse .project-preview,
  .project-reverse .project-info {
    order: initial;
  }

  .github-section {
    padding: 40px 6vw 80px;
  }

  .github-card {
    padding: 48px 32px;
  }

  .github-cta {
    font-size: 16px;
    padding: 14px 22px;
  }

  .contact-section {
    padding: 80px 6vw;
  }

  .contact-inner {
    gap: 40px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .theme-switcher {
    top: 16px;
    right: 16px;
  }

  .theme-btn {
    width: 38px;
    height: 38px;
  }
}