:root {
  --bg: #f4f2ee;
  --surface: #fffdf9;
  --surface-alt: #fffcf7;
  --ink: #223037;
  --muted: #5f6a6f;
  --meta: #738084;
  --line: #d8ded8;
  --accent: #4f6b61;
  --on-accent: #f7f6f2;
  --accent-soft: #e4ece7;
  --chip-ink: #1f3930;
  --chip-line: #cad8cf;
  --shadow: 0 14px 32px rgba(23, 35, 33, 0.08);
  --bg-glow-1: #e9f0eb;
  --bg-glow-2: #ece8df;
}

body[data-theme="dark"] {
  --bg: #181d1f;
  --surface: #20282b;
  --surface-alt: #263033;
  --ink: #e6ece9;
  --muted: #b5c0bc;
  --meta: #c2cdca;
  --line: #354144;
  --accent: #9ec0b2;
  --on-accent: #16211d;
  --accent-soft: #2b3a35;
  --chip-ink: #deebe6;
  --chip-line: #4c6159;
  --shadow: 0 14px 32px rgba(5, 10, 12, 0.35);
  --bg-glow-1: #243338;
  --bg-glow-2: #302b22;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Work Sans", "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 90% -10%, var(--bg-glow-1) 0%, transparent 42%),
    radial-gradient(circle at -5% 35%, var(--bg-glow-2) 0%, transparent 40%),
    var(--bg);
  line-height: 1.65;
}

.container {
  width: min(1020px, 92%);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(8px);
  background: color-mix(in srgb, var(--surface) 86%, transparent);
  border-bottom: 1px solid var(--line);
}

.nav-wrap {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.tech-selector-wrap {
  padding: 0 0 12px;
}

.tech-selector-label {
  margin: 0;
  color: var(--meta);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.tech-selector {
  margin-top: 8px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tech-tab {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
  padding: 6px 12px;
  font-family: "Work Sans", "Segoe UI", sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
}

.tech-tab:hover {
  border-color: var(--accent);
}

.tech-tab.is-active {
  background: var(--accent);
  color: var(--on-accent);
  border-color: var(--accent);
}

.tech-status {
  margin: 9px 0 0;
  padding: 8px 12px;
  border-radius: 10px;
  border: 1px dashed var(--chip-line);
  background: color-mix(in srgb, var(--accent-soft) 42%, var(--surface));
  color: var(--chip-ink);
  font-size: 0.9rem;
  font-weight: 500;
}

.theme-toggle {
  margin-left: auto;
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink);
  font-family: "Work Sans", "Segoe UI", sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
}

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

.brand {
  color: var(--ink);
  font-family: "Source Serif 4", Georgia, serif;
  font-size: 1.4rem;
  font-weight: 700;
  text-decoration: none;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

nav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 500;
}

nav a:hover {
  color: var(--ink);
}

.hero {
  padding: 84px 0 48px;
}

.eyebrow {
  margin: 0;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--accent);
}

h1,
h2,
h3 {
  margin: 0;
  font-family: "Source Serif 4", Georgia, serif;
  line-height: 1.2;
}

h1 {
  margin-top: 10px;
  max-width: 15ch;
  font-size: clamp(2rem, 5vw, 3.6rem);
}

.intro {
  margin-top: 18px;
  max-width: 62ch;
  color: var(--muted);
}

.hero-actions {
  margin-top: 24px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 999px;
  text-decoration: none;
  border: 1px solid transparent;
  font-weight: 600;
}

.button.primary {
  background: var(--accent);
  color: var(--on-accent);
}

.button.ghost {
  border-color: var(--line);
  color: var(--ink);
  background: var(--surface);
}

.button.social-link {
  border-color: var(--line);
  color: var(--ink);
  background: var(--surface);
}

.button.social-link:hover {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent-soft) 45%, var(--surface));
}

.button.social-link svg {
  width: 16px;
  height: 16px;
  fill: currentColor;
  flex-shrink: 0;
}

.external-indicator {
  color: var(--muted);
  border-left: 1px solid var(--line);
  padding-left: 7px;
  margin-left: 2px;
  line-height: 0;
  display: inline-flex;
  align-items: center;
}

.external-indicator svg {
  width: 13px;
  height: 13px;
  fill: currentColor;
}

body[data-theme="dark"] .external-indicator {
  color: #c9d4d1;
}

.section {
  margin-top: 24px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: color-mix(in srgb, var(--surface) 84%, transparent);
  box-shadow: var(--shadow);
}

.section p {
  margin: 12px 0 0;
  color: var(--muted);
}

.chips {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chips span {
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--chip-ink);
  border: 1px solid var(--chip-line);
  font-size: 0.9rem;
  font-weight: 600;
}

body[data-theme="dark"] #skills h2 {
  color: #f0f5f2;
}

body[data-theme="dark"] #skills .chips span {
  background: #d5e5de;
  color: #13201b;
  border-color: #b7cdc2;
}

.project-grid {
  margin-top: 18px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.card {
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface-alt);
}

.card p {
  margin-top: 10px;
}

.card a {
  display: inline-block;
  margin-top: 12px;
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

.card a:hover {
  text-decoration: underline;
}

.footer {
  margin: 24px auto 48px;
  padding: 28px;
  border-top: 1px solid var(--line);
}

.footer-links {
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-links a {
  color: var(--accent);
  text-decoration: none;
}

.footer-links a:hover {
  text-decoration: underline;
}

.meta {
  margin-top: 10px;
  color: var(--meta);
  font-size: 0.9rem;
}

.reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

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

@media (max-width: 760px) {
  .nav-wrap {
    min-height: auto;
    padding: 12px 0;
    flex-direction: row;
    flex-wrap: wrap;
    align-items: flex-start;
  }

  nav {
    width: 100%;
  }

  .theme-toggle {
    margin-left: 0;
  }

  .tech-selector-wrap {
    padding-bottom: 10px;
  }

  .tech-selector-label {
    font-size: 0.78rem;
  }

  .tech-tab {
    width: fit-content;
  }

  .hero {
    padding-top: 56px;
  }

  .section,
  .footer {
    padding: 20px;
  }

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