/* ── Reset & Base ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg:         #f5f0e6;   /* cream */
  --surface:    #ede8da;   /* slightly deeper cream — cards, surfaces */
  --border:     #cdc8ba;   /* warm gray border */
  --text:       #1c2022;   /* charcoal */
  --muted:      #5c6264;   /* medium charcoal */
  --accent:     #4e9785;   /* muted teal-green */
  --accent-dark:#3a7264;   /* darker teal-green — hover states */
  --accent-dim: #dce9e6;   /* very muted teal-green — tag backgrounds */
  --thumb-bg:   #dbd6ca;   /* warm gray — card thumbnail placeholder */
  --radius:     5px;
  --nav-h:      60px;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.6;
}

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

/* ── Nav ── */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  background: rgba(245, 240, 230, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2.5rem;
  z-index: 100;
}

.nav-name {
  font-weight: 600;
  font-size: 1rem;
  letter-spacing: 0.02em;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
}

nav ul a {
  color: var(--muted);
  font-size: 0.9rem;
  transition: color 0.2s;
}

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

/* ── Hero ── */
#hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(var(--nav-h) + 2rem) 2.5rem 2rem;
  max-width: 1100px;
  margin: 0 auto;
}

.hero-content {
  display: flex;
  align-items: center;
  gap: 4rem;
  flex: 1;
  padding: 3rem 0;
}

.hero-text {
  flex: 1;
}

.hero-text h1 {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
}

.tagline {
  color: var(--accent);
  font-size: 1rem;
  margin-bottom: 1.5rem;
}

.bio {
  color: var(--muted);
  font-size: 1rem;
  max-width: 520px;
  margin-bottom: 2rem;
  line-height: 1.75;
}

.btn {
  display: inline-block;
  padding: 0.65rem 1.5rem;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  transition: background 0.2s;
}

.btn:hover {
  background: var(--accent-dark);
}

/* Hero photo */
.hero-photo {
  flex-shrink: 0;
}

.photo-placeholder {
  width: 220px;
  height: 220px;
  border-radius: 50%;
  border: 2px dashed var(--border);
  background: var(--surface);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 0.85rem;
}

.hero-photo img {
  width: 220px;
  height: 220px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--border);
}

/* Scroll hint */
.scroll-hint {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  color: var(--muted);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding-bottom: 1.5rem;
}

.arrow {
  font-size: 1.1rem;
  animation: bob 1.8s ease-in-out infinite;
}

@keyframes bob {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(5px); }
}

/* ── Projects ── */
#projects {
  max-width: 1100px;
  margin: 0 auto;
  padding: 5rem 2.5rem 6rem;
}

#projects h2 {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 2.5rem;
  padding-bottom: 0.75rem;
  padding-left: 1rem;
  border-bottom: 1px solid var(--border);
  border-left: 3px solid var(--accent);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

/* ── Card ── */
.card {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  color: var(--text);
  transition: border-color 0.2s, transform 0.2s;
}

.card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}

.card-thumb {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--thumb-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 0.85rem;
}

.card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Coming Soon thumbnail variant */
.card-thumb-soon {
  background: var(--surface);
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Code snippet thumbnail variant */
.card-thumb-code {
  background: var(--surface);
  align-items: stretch;
  justify-content: stretch;
  padding: 0.9rem 1rem;
  overflow: hidden;
}

.card-thumb-code pre {
  margin: 0;
  font-family: 'Consolas', 'Monaco', 'Courier New', monospace;
  font-size: 0.65rem;
  line-height: 1.5;
  color: var(--text);
  white-space: pre;
  overflow: hidden;
}

.card-thumb-code .cc {
  color: var(--accent);
  font-style: italic;
}

.card-body {
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
}

.card-body h3 {
  font-size: 1rem;
  font-weight: 600;
}

.card-body p {
  color: var(--muted);
  font-size: 0.875rem;
  line-height: 1.6;
  flex: 1;
}

.tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.5rem;
}

.card .tags {
  flex-wrap: nowrap;
  overflow: hidden;
  gap: 0.3rem;
}

.card .tags li {
  font-size: 0.7rem;
  padding: 0.15rem 0.5rem;
  white-space: nowrap;
  flex-shrink: 0;
}

.tags li {
  background: var(--border);
  color: var(--text);
  font-size: 0.75rem;
  padding: 0.2rem 0.6rem;
  border-radius: 4px;
}

/* ── Footer ── */
footer {
  border-top: 1px solid var(--border);
  text-align: center;
  padding: 2rem;
  color: var(--muted);
  font-size: 0.85rem;
}

footer a {
  color: var(--muted);
}

footer a:hover {
  color: var(--text);
}

/* ── Responsive ── */
@media (max-width: 880px) {
  nav {
    padding: 0 1.5rem;
  }

  nav ul {
    gap: 1.2rem;
  }

  nav ul a {
    font-size: 0.85rem;
  }
}

@media (max-width: 680px) {
  .hero-content {
    flex-direction: column-reverse;
    gap: 2rem;
    text-align: center;
    padding: 2rem 0;
  }

  .bio {
    margin: 0 auto 2rem;
  }

  .hero-text h1 {
    font-size: 2rem;
  }

  .photo-placeholder,
  .hero-photo img {
    width: 180px;
    height: 180px;
  }

  nav {
    padding: 0 1rem;
  }

  nav ul {
    gap: 1rem;
  }

  nav ul a {
    font-size: 0.8rem;
  }

  .nav-name {
    font-size: 0.9rem;
  }

  #hero,
  #projects {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }

  #projects {
    padding-top: 3rem;
    padding-bottom: 4rem;
  }

  #projects h2 {
    font-size: 1.4rem;
  }

  .project-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  /* Allow card tags to wrap on mobile since cards are full-width */
  .card .tags {
    flex-wrap: wrap;
    overflow: visible;
  }
}

@media (max-width: 420px) {
  nav ul {
    gap: 0.7rem;
  }

  .hero-text h1 {
    font-size: 1.7rem;
  }
}