:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #111118;
  --bg-card: #16161e;
  --bg-card-hover: #1c1c28;
  --text-primary: #e4e4ed;
  --text-secondary: #9393a8;
  --text-muted: #5c5c73;
  --accent: #6c63ff;
  --accent-glow: rgba(108, 99, 255, 0.3);
  --green: #4ade80;
  --yellow: #facc15;
  --red: #f87171;
  --blue: #60a5fa;
  --cyan: #22d3ee;
  --orange: #fb923c;
  --border: rgba(255, 255, 255, 0.06);
  --radius: 12px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
  --bg-primary: #f8f8fc;
  --bg-secondary: #ffffff;
  --bg-card: #ffffff;
  --bg-card-hover: #f0f0f8;
  --text-primary: #1a1a2e;
  --text-secondary: #555577;
  --text-muted: #9999bb;
  --accent: #5a4fcf;
  --accent-glow: rgba(90, 79, 207, 0.15);
  --border: rgba(0, 0, 0, 0.08);
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background-color var(--transition), color var(--transition);
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
  position: relative;
  z-index: 1;
}

.container::before {
  content: '';
  position: absolute;
  inset: -20px -40px;
  background: var(--bg-primary);
  opacity: 0.55;
  border-radius: 24px;
  z-index: -1;
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1px solid var(--border);
  pointer-events: none;
}

.nav-inner::before {
  display: none;
}

[data-theme="light"] .container::before {
  opacity: 0.7;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 1rem;
  transition: all var(--transition);
}

.navbar.scrolled {
  background: rgba(17, 17, 24, 0.85);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

[data-theme="light"] .navbar.scrolled {
  background: rgba(255, 255, 255, 0.85);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.logo {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.5px;
}

.logo-dot {
  color: var(--green);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-links a {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.5px;
  transition: color var(--transition);
}

.nav-links a:hover {
  color: var(--accent);
}

.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 10px;
  cursor: pointer;
  font-size: 1rem;
  transition: all var(--transition);
}

.theme-toggle:hover {
  border-color: var(--accent);
}

.theme-icon-light { display: none; }
.theme-icon-dark { display: inline; }

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

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  position: relative;
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-greeting {
  color: var(--accent);
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.95rem;
  margin-bottom: 1rem;
  font-weight: 500;
}

.hero-name {
  font-size: clamp(2.6rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -1.5px;
  margin-bottom: 0.3rem;
}

.hero-tagline {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  color: var(--text-secondary);
  line-height: 1.2;
  margin-bottom: 1.5rem;
}

.hero-description {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 480px;
  margin-bottom: 2rem;
  line-height: 1.7;
}

.hero-cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  transition: all var(--transition);
  cursor: pointer;
  border: 2px solid transparent;
}

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

.btn-primary:hover {
  background: #7b73ff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--accent-glow);
}

.btn-outline {
  background: transparent;
  color: var(--accent);
  border-color: var(--accent);
}

.btn-outline:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-2px);
}

/* Code card */
.code-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  transition: all var(--transition);
}

[data-theme="light"] .code-card {
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
}

.code-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 72px rgba(0, 0, 0, 0.5);
}

.code-card-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  background: var(--bg-card-hover);
  border-bottom: 1px solid var(--border);
}

.cc-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.cc-red { background: var(--red); }
.cc-yellow { background: var(--yellow); }
.cc-green { background: var(--green); }

.cc-filename {
  margin-left: auto;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.code-card-body {
  padding: 20px 24px;
  overflow-x: auto;
}

.code-card-body pre {
  margin: 0;
}

.code-card-body code {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.85rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.code-keyword { color: var(--accent); }
.code-string { color: var(--green); }
.code-fn { color: var(--cyan); }

/* Section headigs */
.section-heading {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 3rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.section-heading::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
  min-width: 40px;
}

.section-number {
  color: var(--accent);
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.2rem;
  font-weight: 600;
}

/* About */
.about {
  padding: 100px 0;
  position: relative;
}

.about-grid {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 3rem;
  align-items: start;
}

.about-text p {
  color: var(--text-secondary);
  margin-bottom: 1rem;
  font-size: 1rem;
  line-height: 1.7;
}

.skill-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  list-style: none;
  gap: 0.4rem 2rem;
  margin-top: 1.2rem;
}

.skill-list li {
  position: relative;
  padding-left: 1.4rem;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-family: 'JetBrains Mono', monospace;
}

.skill-list li::before {
  content: '▹';
  position: absolute;
  left: 0;
  color: var(--accent);
}

.about-visual {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-content: flex-start;
}

.tech-badge {
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-secondary);
  background: var(--bg-card);
  cursor: default;
  transition: all var(--transition);
}

.tech-badge:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--bg-card-hover);
  transform: translateY(-2px);
}

/* Projects */
.projects {
  padding: 100px 0;
  position: relative;
}

.project-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-bottom: 6rem;
  align-items: center;
}

.project-card.reverse {
  direction: rtl;
}

.project-card.reverse .project-content {
  direction: ltr;
}

.project-content {
  z-index: 2;
}

.project-overline {
  color: var(--accent);
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.project-title {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.project-title a {
  transition: color var(--transition);
}

.project-title a:hover {
  color: var(--accent);
}

.project-description {
  background: var(--bg-card);
  border-radius: 8px;
  padding: 1.5rem;
  margin-bottom: 1.2rem;
  border: 1px solid var(--border);
}

.project-card.reverse .project-description {
  background: var(--bg-card);
}

.project-description p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  margin-bottom: 1.2rem;
}

.project-tech li {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.project-card.reverse .project-tech {
  justify-content: flex-start;
}

.project-links {
  display: flex;
  gap: 1rem;
}

.project-card.reverse .project-links {
  justify-content: flex-start;
}

.project-link {
  color: var(--text-secondary);
  transition: color var(--transition);
}

.project-link:hover {
  color: var(--accent);
}

.project-visual {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  min-height: 320px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  transition: all var(--transition);
}

.project-visual:hover {
  transform: translateY(-4px);
}

.wealthwave-bg {
  background: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
}

.truststar-bg {
  background: linear-gradient(135deg, #1a0a0a 0%, #2d1b1b 50%, #1a0a2e 100%);
}

.project-visual-inner {
  display: flex;
  align-items: center;
  justify-content: center;
}

.project-label-live {
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 10px 24px;
  border-radius: 8px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* GitHub */
.github {
  padding: 100px 0;
  position: relative;
}

.github-intro {
  margin-bottom: 2.5rem;
}

.github-intro p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 600px;
}

.repo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.repo-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.repo-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent);
  transform: translateY(-3px);
}

.repo-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.repo-icon {
  color: var(--text-muted);
  flex-shrink: 0;
}

.repo-name {
  font-size: 0.95rem;
  font-weight: 600;
  font-family: 'JetBrains Mono', monospace;
  color: var(--accent);
  transition: color var(--transition);
  word-break: break-word;
}

.repo-name:hover {
  color: var(--cyan);
}

.repo-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.5;
  flex: 1;
}

.repo-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  font-family: 'JetBrains Mono', monospace;
  color: var(--text-muted);
}

.repo-lang {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.lang-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.lang-dot.ts { background: #3178c6; }
.lang-dot.js { background: #f7df1e; }
.lang-dot.py { background: #3776ab; }
.lang-dot.dart { background: #0175c2; }

.github-more {
  text-align: center;
}

/* Contact */
.contact {
  padding: 100px 0 120px;
  text-align: center;
  position: relative;
}

.sketch-contact {
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

.contact-subtitle {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 550px;
  margin: 0 auto 2rem;
  line-height: 1.7;
}

.map-container {
  max-width: 600px;
  margin: 0 auto 2.5rem;
}

.map-container iframe {
  width: 100%;
  filter: grayscale(40%) brightness(0.9);
  transition: filter var(--transition);
}

.map-container iframe:hover {
  filter: grayscale(0%) brightness(1);
}

[data-theme="light"] .map-container iframe {
  filter: grayscale(30%) brightness(1);
}

[data-theme="light"] .map-container iframe:hover {
  filter: grayscale(0%) brightness(1.05);
}

.contact-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.contact-link {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
  transition: all var(--transition);
  padding: 1rem;
  border-radius: var(--radius);
}

.contact-link:hover {
  color: var(--accent);
  background: var(--bg-card);
}

.contact-link svg {
  width: 28px;
  height: 28px;
}

/* Footer */
.footer {
  padding: 2rem 0;
  text-align: center;
  border-top: 1px solid var(--border);
}

.footer p {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.footer-built {
  margin-bottom: 0.3rem;
}

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

.animate {
  animation: fadeUp 0.6s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

/* Responsive */
@media (max-width: 768px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .hero-visual {
    order: -1;
  }

  .code-card {
    max-width: 100%;
  }

  .code-card-body code {
    font-size: 0.75rem;
  }

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

  .skill-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .project-card,
  .project-card.reverse {
    grid-template-columns: 1fr;
    direction: ltr;
    gap: 1.5rem;
  }

  .project-card .project-content {
    direction: ltr;
  }

  .project-visual {
    min-height: 200px;
    order: -1;
  }

  .project-card .project-tech,
  .project-card .project-links {
    justify-content: flex-start;
  }

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

  .nav-links {
    display: none;
  }

  .contact-links {
    gap: 1rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 1.2rem;
  }

  .hero-name {
    font-size: 2.2rem;
  }

  .hero-tagline {
    font-size: 1.5rem;
  }

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

  .skill-list {
    grid-template-columns: 1fr 1fr;
  }

  .section-heading {
    font-size: 1.4rem;
  }
}