@import url('https://fonts.googleapis.com/css2?family=Crimson+Pro:ital,wght@0,400;0,600;0,700;1,400&family=Outfit:wght@300;400;500;600&display=swap');

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

:root {
  --bg:        #faf8f5;
  --fg:        #2e2520;
  --primary:   #b45d2a;
  --muted-fg:  #7a6a62;
  --border:    #e8e2da;
  --card:      #fdfcfa;
  --secondary: #ede8e1;
  --font-sans: 'Outfit', sans-serif;
  --font-serif:'Crimson Pro', serif;
}

.dark {
  --bg:        #1a1410;
  --fg:        #ede4d8;
  --primary:   #d4845a;
  --muted-fg:  #a89a8e;
  --border:    #2e2520;
  --card:      #211c18;
  --secondary: #2a2420;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--fg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  transition: background .25s, color .25s;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  line-height: 1.15;
}

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

/* ── Nav ── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 2rem;
  border-bottom: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.nav-logo {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--primary);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: .75rem;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  align-items: center;
  background: color-mix(in srgb, var(--secondary) 50%, transparent);
  border: 1px solid var(--border);
  border-radius: 99px;
  padding: .4rem 1.25rem;
}

.nav-links a {
  font-size: .875rem;
  font-weight: 500;
  color: var(--muted-fg);
  transition: color .15s;
  position: relative;
}

.nav-links a:hover,
.nav-links a.active { color: var(--primary); }

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0; right: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 99px;
}

#theme-btn {
  width: 2.25rem;
  height: 2.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: color-mix(in srgb, var(--secondary) 50%, transparent);
  color: var(--muted-fg);
  cursor: pointer;
  font-size: 1rem;
  transition: color .15s, border-color .15s;
}
#theme-btn:hover { color: var(--primary); border-color: var(--primary); }

/* ── Main ── */
main {
  flex: 1;
  width: 100%;
  max-width: 56rem;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ── Footer ── */
footer {
  text-align: center;
  padding: 2.5rem 1.5rem;
  font-size: .8rem;
  color: var(--muted-fg);
  border-top: 1px solid var(--border);
  margin-top: 4rem;
}

/* ── Hero ── */
.hero { margin: 4rem 0 5rem; max-width: 42rem; }

.hero h1 {
  font-size: clamp(2.4rem, 7vw, 4.5rem);
  font-weight: 700;
  margin-bottom: 1.25rem;
  line-height: 1.1;
}

.hero h1 .sub {
  display: block;
  color: var(--muted-fg);
  font-weight: 400;
}

.hero p {
  font-size: 1.125rem;
  color: var(--muted-fg);
  line-height: 1.75;
  margin-bottom: 2rem;
}

.btn-row { display: flex; gap: 1rem; flex-wrap: wrap; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .7rem 1.5rem;
  border-radius: .4rem;
  font-weight: 500;
  font-size: .95rem;
  transition: opacity .15s, background .15s;
  cursor: pointer;
}

.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { opacity: .88; }
.btn-secondary { background: var(--secondary); color: var(--fg); }
.btn-secondary:hover { opacity: .8; }

/* ── Hero image ── */
.hero-img {
  border-radius: .85rem;
  overflow: hidden;
  border: 1px solid var(--border);
  aspect-ratio: 16/7;
  background: var(--secondary);
  margin-bottom: 5rem;
}
.hero-img img { width: 100%; height: 100%; object-fit: cover; display: block; }
.hero-img-caption { text-align: center; font-size: .85rem; color: var(--muted-fg); font-family: var(--font-serif); font-style: italic; margin-top: .75rem; }

/* ── Cards ── */
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr)); gap: 1.5rem; margin-bottom: 5rem; }

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: .85rem;
  padding: 2rem;
  transition: box-shadow .2s;
}
.card:hover { box-shadow: 0 4px 20px rgba(0,0,0,.08); }

.card-icon { font-size: 1.75rem; margin-bottom: 1rem; }
.card h3 { font-size: 1.35rem; font-weight: 700; margin-bottom: .6rem; }
.card p { color: var(--muted-fg); line-height: 1.65; font-size: .95rem; }

/* ── About page ── */
.page-header { margin: 3.5rem 0 3rem; }
.page-header h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 700; margin-bottom: .75rem; }
.page-header p { font-size: 1.1rem; color: var(--muted-fg); }

.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; margin-bottom: 4rem; }
@media (max-width: 640px) { .about-grid { grid-template-columns: 1fr; gap: 2rem; } }

.about-section h2 { font-size: 1.6rem; font-weight: 700; margin-bottom: 1rem; }
.about-section p { color: var(--muted-fg); line-height: 1.75; margin-bottom: 1rem; font-size: .975rem; }

.tag-list { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1rem; }
.tag {
  font-size: .8rem;
  font-weight: 500;
  color: var(--primary);
  background: color-mix(in srgb, var(--primary) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--primary) 25%, transparent);
  padding: .25rem .75rem;
  border-radius: 99px;
}

/* ── Projects page ── */
.project-list { display: flex; flex-direction: column; gap: 5rem; margin-bottom: 5rem; }

.project {
  display: grid;
  grid-template-columns: 7fr 5fr;
  gap: 2.5rem;
  align-items: start;
}
@media (max-width: 640px) { .project { grid-template-columns: 1fr; } }

.project-year {
  font-size: .75rem;
  font-family: monospace;
  background: var(--secondary);
  color: var(--muted-fg);
  padding: .2rem .6rem;
  border-radius: .3rem;
}

.project-title {
  font-size: 1.75rem;
  font-weight: 700;
  font-family: var(--font-serif);
  margin: .4rem 0 .75rem;
}

.project-desc { color: var(--muted-fg); line-height: 1.7; font-size: 1rem; margin-bottom: 1rem; }

.project-img {
  aspect-ratio: 4/3;
  border-radius: .85rem;
  border: 1px solid var(--border);
  background: var(--secondary);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted-fg);
  font-family: var(--font-serif);
  font-style: italic;
  font-size: .9rem;
}
.project-img img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* ── Contact page ── */
.contact-wrap { max-width: 34rem; margin: 2rem 0 5rem; }
.contact-wrap h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 700; margin-bottom: .75rem; }
.contact-wrap .lead { font-size: 1.1rem; color: var(--muted-fg); line-height: 1.7; margin-bottom: 2.5rem; }

.contact-email {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  background: var(--primary);
  color: #fff;
  padding: .85rem 1.75rem;
  border-radius: .5rem;
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 3rem;
  transition: opacity .15s;
}
.contact-email:hover { opacity: .88; }

.social-links { display: flex; flex-direction: column; gap: .75rem; }
.social-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: .65rem;
  transition: border-color .15s, box-shadow .15s;
}
.social-link:hover { border-color: var(--primary); box-shadow: 0 2px 12px rgba(0,0,0,.06); }
.social-label { font-weight: 500; font-size: .95rem; }
.social-handle { font-size: .85rem; color: var(--muted-fg); }

@media (max-width: 520px) {
  nav { padding: 1rem; }
  .nav-links { gap: 1rem; padding: .35rem 1rem; }
}