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

:root {
  --font: 'Inter', system-ui, -apple-system, sans-serif;
  --radius: 12px;
  --transition: 0.2s ease;
}

[data-theme="dark"] {
  --bg: #0a0a0b;
  --bg-raised: #141416;
  --bg-hover: #1c1c20;
  --text: #e8e8ec;
  --text-muted: #8b8b96;
  --accent: #6c8aff;
  --accent-hover: #8aa2ff;
  --border: #23232a;
  --header-bg: rgba(10, 10, 11, 0.8);
}

[data-theme="light"] {
  --bg: #fafafa;
  --bg-raised: #ffffff;
  --bg-hover: #f0f0f2;
  --text: #1a1a1e;
  --text-muted: #6b6b76;
  --accent: #4a6aff;
  --accent-hover: #3454e8;
  --border: #e0e0e6;
  --header-bg: rgba(250, 250, 250, 0.8);
}

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

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  transition: background var(--transition), color var(--transition);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Header --- */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--header-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.nav-logo {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
}

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

.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px;
  cursor: pointer;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color var(--transition), border-color var(--transition);
}

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

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

/* --- Hero --- */

.hero {
  padding: 140px 0 80px;
}

.hero-content {
  max-width: 800px;
}

.hero-greeting {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.hero-name {
  font-size: clamp(2.8rem, 8vw, 4.2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 16px;
}

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

.hero-tagline {
  font-size: 1.15rem;
  color: var(--text-muted);
}

/* --- Sections --- */

.section {
  padding: 60px 0;
}

.section-title {
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 24px;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
}

/* --- Projects --- */

.projects-grid {
  display: grid;
  gap: 16px;
}

.project-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text);
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
}

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

.project-icon {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--accent);
}

.project-info {
  flex: 1;
  min-width: 0;
}

.project-name {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.project-desc {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.project-link-icon {
  flex-shrink: 0;
  color: var(--text-muted);
  transition: color var(--transition), transform var(--transition);
}

.project-card:hover .project-link-icon {
  color: var(--accent);
  transform: translate(2px, -2px);
}

/* --- Links --- */

.links-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.link-card {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 12px 20px;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 500;
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
}

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

.link-card svg {
  flex-shrink: 0;
  color: var(--text-muted);
  transition: color var(--transition);
}

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

/* --- Footer --- */

.footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
  margin-top: auto;
}

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

/* --- Responsive --- */

@media (max-width: 600px) {
  .container {
    padding: 0 16px;
  }

  .hero {
    padding: 120px 0 60px;
  }

  .project-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .project-link-icon {
    align-self: flex-end;
  }
}