:root {
  color-scheme: light dark;
  --bg: #0f1115;
  --bg-accent: #0b0f14;
  --panel: #151a22;
  --panel-accent: #121720;
  --border: #252b36;
  --text: #e6e8ec;
  --muted: #a9b0bb;
  --accent: #8dbf97;
  --accent-strong: #b7dbc1;
  --shadow: rgba(0, 0, 0, 0.35);
  --page-glow-a: #121826;
  --page-glow-b: #0f161f;
  --hover-wash: rgba(141, 191, 151, 0.12);
  --max-width: 900px;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

:root[data-theme="dark"] {
  color-scheme: dark;
}

:root[data-theme="light"] {
  color-scheme: light;
  --bg: #f5efe6;
  --bg-accent: #f8f3eb;
  --panel: #fffaf4;
  --panel-accent: #f1e9dc;
  --border: #d5cabc;
  --text: #1f252a;
  --muted: #5f6b74;
  --accent: #4d8c79;
  --accent-strong: #2b5d4d;
  --shadow: rgba(64, 47, 21, 0.12);
  --page-glow-a: #f2e5d0;
  --page-glow-b: #dceae2;
  --hover-wash: rgba(77, 140, 121, 0.12);
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme]) {
    color-scheme: light;
    --bg: #f5efe6;
    --bg-accent: #f8f3eb;
    --panel: #fffaf4;
    --panel-accent: #f1e9dc;
    --border: #d5cabc;
    --text: #1f252a;
    --muted: #5f6b74;
    --accent: #4d8c79;
    --accent-strong: #2b5d4d;
    --shadow: rgba(64, 47, 21, 0.12);
    --page-glow-a: #f2e5d0;
    --page-glow-b: #dceae2;
    --hover-wash: rgba(77, 140, 121, 0.12);
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--sans);
  background: radial-gradient(circle at 10% 20%, var(--page-glow-a), var(--bg) 45%),
    radial-gradient(circle at 85% 0%, var(--page-glow-b), var(--bg) 55%);
  color: var(--text);
  line-height: 1.6;
  transition: background 0.25s ease, color 0.25s ease;
}

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

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent-strong);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 8px;
  background: var(--panel);
  color: var(--text);
  padding: 8px 12px;
  border-radius: 4px;
  border: 1px solid var(--border);
}

.skip-link:focus {
  left: 16px;
  z-index: 10;
}

.page {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 48px 24px 32px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.panel {
  background: linear-gradient(145deg, var(--panel), var(--panel-accent));
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  box-shadow: 0 12px 24px var(--shadow);
  transition: background 0.25s ease, border-color 0.25s ease,
    box-shadow 0.25s ease;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  color: var(--muted);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.panel-label {
  font-family: var(--mono);
}

.panel-dots {
  display: inline-flex;
  gap: 6px;
}

.panel-dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border);
}

.hero {
  padding: 32px;
}

.hero-content h1 {
  font-size: clamp(2.4rem, 4vw, 3rem);
  margin: 0 0 8px;
}

.title {
  font-size: 1.2rem;
  margin: 0;
  color: var(--accent-strong);
}

.location {
  margin: 4px 0 16px;
  color: var(--muted);
}

.tagline {
  margin: 0 0 12px;
  font-size: 1.05rem;
}

.intro {
  margin: 0 0 24px;
  color: var(--muted);
}

.intro-label {
  font-family: var(--mono);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.7rem;
  color: var(--muted);
  margin: 0 0 8px;
}

.cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 16px;
  min-width: 112px;
  min-height: 42px;
  border-radius: 8px;
  border: 1px solid var(--accent);
  color: var(--accent-strong);
  font-weight: 600;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.cta:hover,
.cta:focus-visible {
  transform: translateY(-1px);
  background: var(--hover-wash);
  border-color: var(--accent-strong);
}

.quick-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 8px;
  font-size: 0.95rem;
  color: var(--muted);
}

.quick-nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.quick-nav a {
  font-family: var(--mono);
  padding: 6px 0;
  border-bottom: 1px solid transparent;
}

.quick-nav a:hover,
.quick-nav a:focus-visible {
  border-color: var(--accent);
  color: var(--accent-strong);
}

.theme-toggle {
  appearance: none;
  border: 1px solid var(--border);
  background: linear-gradient(145deg, var(--panel), var(--panel-accent));
  color: var(--text);
  border-radius: 999px;
  padding: 8px 12px;
  font: inherit;
  font-family: var(--mono);
  font-size: 0.82rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease,
    background 0.2s ease, color 0.2s ease;
}

.theme-toggle span {
  color: var(--accent-strong);
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  transform: translateY(-1px);
  border-color: var(--accent);
  background: linear-gradient(145deg, var(--panel), var(--bg-accent));
}

.focus-list {
  margin: 0;
  padding-left: 20px;
  color: var(--text);
}

.focus-list li {
  margin-bottom: 8px;
}

.project-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
  background: var(--bg-accent);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: background 0.25s ease, border-color 0.25s ease;
}

.card h3 {
  margin: 0;
}

.text-link {
  font-family: var(--mono);
  color: var(--accent-strong);
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.text-link::after {
  content: "->";
  color: var(--accent);
}

.text-link:hover,
.text-link:focus-visible {
  color: var(--text);
}

.stack-grid {
  display: grid;
  gap: 20px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.stack-grid h3 {
  margin-top: 0;
  color: var(--accent-strong);
}

.stack-grid ul {
  list-style: none;
  padding: 0;
  margin: 0;
  color: var(--muted);
}

.stack-grid li {
  margin: 6px 0;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 16px;
}

.footer {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  color: var(--muted);
  font-size: 0.9rem;
  padding: 4px 8px 0;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Responsive tweaks */
@media (max-width: 640px) {
  .page {
    padding: 32px 18px 24px;
  }

  .hero {
    padding: 24px;
  }

  .quick-nav {
    align-items: flex-start;
  }

  .theme-toggle {
    width: 100%;
    justify-content: center;
  }

  .footer {
    flex-direction: column;
    align-items: flex-start;
  }
}