:root {
  color-scheme: light;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  --page-bg: linear-gradient(180deg, #f7f9fc 0%, #e9eef7 100%);
  --surface: rgba(255, 255, 255, 0.96);
  --card-bg: #ffffff;
  --project-bg: #f8fafc;
  --contact-bg: #eff4ff;
  --page-shell-bg: transparent;
  --page-shell-border: transparent;
  --border: #e2e8f0;
  --contact-border: rgba(59, 130, 246, 0.12);
  --nav-bg: #ffffff;
  --nav-border: #cbd5e1;
  --nav-link-bg: #ffffff;
  --nav-link-hover-bg: #eff6ff;
  --text: #20232a;
  --muted: #394454;
  --meta: #64748b;
  --link: #1d4ed8;
  --heading: #0f172a;
  --shadow: 0 24px 80px rgba(15, 23, 42, 0.08);
}
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --page-bg: linear-gradient(180deg, #0b1220 0%, #10182e 100%);
    --surface: rgba(15, 23, 42, 0.92);
    --card-bg: rgba(20, 26, 44, 0.96);
    --project-bg: #131f3d;
    --contact-bg: #111c35;
    --page-shell-bg: transparent;
    --border: #1f2a46;
    --contact-border: rgba(96, 165, 250, 0.16);
    --nav-bg: #111c35;
    --nav-border: #28344f;
    --nav-link-bg: #111c35;
    --nav-link-hover-bg: #1f2a4b;
    --text: #e2e8f8;
    --muted: #cbd5e8;
    --meta: #94a3b8;
    --link: #93c5fd;
    --heading: #f8fafc;
    --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  }
}
[data-theme="dark"] {
  color-scheme: dark;
  --page-bg: linear-gradient(180deg, #0b1220 0%, #10182e 100%);
  --surface: rgba(15, 23, 42, 0.92);
  --card-bg: rgba(20, 26, 44, 0.96);
  --project-bg: #131f3d;
  --contact-bg: #111c35;
  --page-shell-bg: transparent;
  --border: #1f2a46;
  --contact-border: rgba(96, 165, 250, 0.16);
  --nav-bg: #111c35;
  --nav-border: #28344f;
  --nav-link-bg: #111c35;
  --nav-link-hover-bg: #1f2a4b;
  --text: #e2e8f8;
  --muted: #cbd5e8;
  --meta: #94a3b8;
  --link: #93c5fd;
  --heading: #f8fafc;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  min-height: 100vh;
  background: var(--page-bg);
  color: var(--text);
}
.page-shell {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 48px;
}
.hero {
  display: grid;
  gap: 24px;
  padding: 32px;
  border-radius: 28px;
  background: var(--surface);
  box-shadow: var(--shadow);
  grid-template-columns: 1.5fr 1fr;
  align-items: start;
}
.hero-copy {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.hero-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
}
.hero-top .theme-toggle {
  white-space: nowrap;
}
.eyebrow {
  margin: 0 0 10px;
  font-size: 0.95rem;
  color: #3b82f6;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
h1 {
  margin: 0;
  font-size: clamp(2.2rem, 4vw, 3.3rem);
  letter-spacing: -0.04em;
  color: var(--heading);
}
.subtext {
  margin: 18px 0 0;
  max-width: 720px;
  color: var(--muted);
}
.contact-card {
  display: grid;
  gap: 18px;
  padding: 20px;
  border-radius: 22px;
  background: var(--contact-bg);
  border: 1px solid var(--contact-border);
}
.contact-card p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text);
}
.contact-card a {
  color: var(--link);
  text-decoration: none;
}
.page-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 28px 0 6px;
}
.page-nav a,
.theme-toggle {
  padding: 10px 16px;
  border-radius: 999px;
  text-decoration: none;
  color: var(--text);
  background: var(--nav-link-bg);
  border: 1px solid var(--nav-border);
  transition: all 0.2s ease;
}
.page-nav a:hover,
.page-nav a:focus-visible,
.theme-toggle:hover,
.theme-toggle:focus-visible {
  transform: translateY(-1px);
  border-color: #93c5fd;
  background: var(--nav-link-hover-bg);
}
.theme-toggle {
  cursor: pointer;
  font: inherit;
}
.section-card {
  margin-top: 20px;
  padding: 28px;
  border-radius: 24px;
  background: var(--card-bg);
  border: 1px solid var(--border);
}
.section-card h2 {
  margin-top: 0;
  margin-bottom: 18px;
  font-size: 1.45rem;
}
.skills-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
.skills-grid h3 {
  margin: 0 0 8px;
  color: var(--heading);
}
.skills-grid p {
  margin: 0;
  color: var(--muted);
}
.experience-item {
  margin-top: 18px;
}
.exp-header {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  align-items: flex-end;
}
.exp-header h3 {
  margin: 0;
}
.meta {
  margin: 6px 0 0;
  color: var(--meta);
  font-size: 0.95rem;
}
ul {
  margin: 16px 0 0 20px;
  padding: 0;
  color: var(--text);
}
ul li {
  margin-bottom: 12px;
}
.project-list {
  display: grid;
  gap: 18px;
}
.project-card {
  padding: 18px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: var(--project-bg);
}
.project-card h3 {
  margin-top: 0;
  margin-bottom: 10px;
}
.footer {
  margin-top: 32px;
  text-align: center;
  color: var(--meta);
  font-size: 0.95rem;
}
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
  }
  .skills-grid {
    grid-template-columns: 1fr;
  }
}
@media (max-width: 640px) {
  .page-shell {
    width: calc(100% - 24px);
  }
  .hero {
    padding: 24px;
  }
  .contact-card {
    padding: 16px;
  }
  .page-nav {
    justify-content: center;
  }
  .page-nav a {
    flex: 1 1 40%;
    text-align: center;
  }
}