/* ===========================
   luke-bevan.com — base styles
   =========================== */

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

:root {
  --bg:        #0d0d0f;
  --bg-2:      #141417;
  --bg-3:      #1c1c21;
  --border:    #2a2a30;
  --border-hi: #3e3e48;
  --text:      #e2e2e8;
  --muted:     #6b6b78;
  --faint:     #3a3a44;
  --accent:    #7ee8a2;    /* terminal green */
  --accent-2:  #5bc4f0;   /* sky blue */
  --danger:    #f87171;
  --mono: 'JetBrains Mono', 'Fira Code', monospace;
  --sans: 'Inter', system-ui, sans-serif;
  --radius: 4px;
  --nav-h: 60px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--mono);
  font-size: 14px;
  line-height: 1.7;
  min-height: 100vh;
}

/* ── Typography ── */
h1, h2, h3, h4 {
  font-family: var(--mono);
  font-weight: 500;
  letter-spacing: -0.02em;
}

h1 { font-size: 2rem; }
h2 { font-size: 1.4rem; }
h3 { font-size: 1.1rem; }

p { color: var(--text); line-height: 1.8; }
a { color: var(--accent); text-decoration: none; transition: color .15s; }
a:hover { color: #fff; }

code {
  font-family: var(--mono);
  background: var(--bg-3);
  color: var(--accent-2);
  padding: 2px 6px;
  border-radius: var(--radius);
  font-size: 0.9em;
}

pre {
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  overflow-x: auto;
  margin: 1.5rem 0;
}

pre code { background: none; padding: 0; color: var(--text); }

/* ── Layout ── */
.container {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.page-wrap {
  padding-top: calc(var(--nav-h) + 3rem);
  padding-bottom: 5rem;
}

/* ── Nav ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  z-index: 100;
}

.nav-inner {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.nav-logo {
  font-family: var(--mono);
  font-weight: 700;
  font-size: 1rem;
  color: var(--text);
  white-space: nowrap;
  flex-shrink: 0;
}

.nav-logo .prompt { color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  list-style: none;
  flex-wrap: wrap;
}

.nav-links a {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--muted);
  padding: 4px 10px;
  border-radius: var(--radius);
  transition: color .15s, background .15s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
  background: var(--bg-3);
}

.nav-links a.active { color: var(--accent); }

/* hamburger */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  cursor: pointer;
  padding: 6px;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  margin: 4px 0;
  transition: all .2s;
}

/* ── Hero (homepage) ── */
.hero {
  padding: 6rem 0 4rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 3.5rem;
}

.hero-eyebrow {
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.hero-eyebrow::before { content: '> '; }

.hero h1 {
  font-size: clamp(1.8rem, 5vw, 3rem);
  color: var(--text);
  line-height: 1.2;
  margin-bottom: 1rem;
}

.hero h1 .highlight { color: var(--accent); }

.hero-sub {
  font-size: 0.95rem;
  color: var(--muted);
  max-width: 560px;
  margin-bottom: 2rem;
}

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tag {
  font-size: 0.75rem;
  color: var(--accent-2);
  background: rgba(91,196,240,0.07);
  border: 1px solid rgba(91,196,240,0.2);
  padding: 3px 10px;
  border-radius: 999px;
}

/* ── Section nav cards (homepage) ── */
.section-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  margin-bottom: 4rem;
}

.section-card {
  background: var(--bg-2);
  padding: 1.5rem;
  transition: background .15s;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  color: inherit;
}

.section-card:hover { background: var(--bg-3); color: inherit; }

.section-card-icon {
  font-size: 1.1rem;
  margin-bottom: 0.25rem;
}

.section-card h3 {
  font-size: 0.9rem;
  color: var(--text);
  font-weight: 500;
}

.section-card p {
  font-size: 0.78rem;
  color: var(--muted);
  line-height: 1.5;
}

.section-card .arrow {
  margin-top: auto;
  font-size: 0.75rem;
  color: var(--accent);
  padding-top: 0.75rem;
}

/* ── Post list ── */
.post-list { list-style: none; }

.post-item {
  border-bottom: 1px solid var(--border);
  padding: 1.25rem 0;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.5rem 1rem;
  align-items: start;
}

.post-item:first-child { border-top: 1px solid var(--border); }

.post-item a {
  color: var(--text);
  font-size: 0.9rem;
}

.post-item a:hover { color: var(--accent); }

.post-item time {
  font-size: 0.75rem;
  color: var(--muted);
  white-space: nowrap;
  padding-top: 2px;
}

.post-item .post-desc {
  font-size: 0.78rem;
  color: var(--muted);
  grid-column: 1;
}

/* ── Page header ── */
.page-header {
  margin-bottom: 3rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.page-header .breadcrumb {
  font-size: 0.75rem;
  color: var(--muted);
  margin-bottom: 0.75rem;
}

.page-header .breadcrumb a { color: var(--muted); }
.page-header .breadcrumb a:hover { color: var(--text); }
.page-header .breadcrumb span { color: var(--faint); margin: 0 0.4rem; }

.page-header h1 {
  font-size: 1.6rem;
  color: var(--text);
  margin-bottom: 0.5rem;
}

.page-header p {
  font-size: 0.85rem;
  color: var(--muted);
}

/* ── Article ── */
.article-header { margin-bottom: 2.5rem; }

.article-header .article-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.75rem;
  color: var(--muted);
  margin-bottom: 1rem;
}

.article-header h1 { font-size: 1.8rem; margin-bottom: 0.75rem; }

.article-body { max-width: 680px; }

.article-body h2 {
  font-size: 1.15rem;
  margin: 2.5rem 0 0.75rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
}

.article-body h3 { font-size: 1rem; margin: 1.75rem 0 0.5rem; }

.article-body p { margin-bottom: 1.25rem; font-size: 0.9rem; }

.article-body ul,
.article-body ol {
  margin: 1rem 0 1.25rem 1.25rem;
  font-size: 0.9rem;
}

.article-body li { margin-bottom: 0.35rem; }

.article-body img {
  max-width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  margin: 1.5rem 0;
}

/* ── Photography grid ── */
.photo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 4px;
}

.photo-grid img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: var(--radius);
  display: block;
  transition: opacity .2s;
}

.photo-grid img:hover { opacity: 0.85; }

/* ── Contact ── */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.contact-card {
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.25rem;
  transition: border-color .15s;
}

.contact-card:hover { border-color: var(--border-hi); }

.contact-card .label {
  font-size: 0.7rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}

.contact-card a {
  font-size: 0.9rem;
  color: var(--text);
}

.contact-card a:hover { color: var(--accent); }

/* ── Terminal prompt util ── */
.prompt-line {
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 2rem;
}
.prompt-line::before { content: '$ '; color: var(--accent); }

/* ── Footer ── */
footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  margin-top: 4rem;
}

.footer-inner {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.75rem;
  color: var(--muted);
}

.footer-links { display: flex; gap: 1rem; }
.footer-links a { color: var(--muted); }
.footer-links a:hover { color: var(--text); }

/* ── Responsive ── */
@media (max-width: 640px) {
  .nav-links { display: none; }
  .nav-links.open { display: flex; flex-direction: column; align-items: flex-start; gap: 0; }
  .nav-toggle { display: block; }

  nav.open { height: auto; }
  nav.open .nav-inner { flex-direction: column; align-items: flex-start; height: auto; padding-bottom: 1rem; }
  nav.open .nav-links { display: flex; }
  nav.open ~ .page-wrap, nav.open ~ * .page-wrap { padding-top: calc(var(--nav-h) + 10rem); }

  h1 { font-size: 1.5rem; }

  .post-item { grid-template-columns: 1fr; }
  .post-item time { text-align: left; }
}