/* Oscar Lara — portfolio site
   Shared stylesheet for index.html, portfolio.html, case-study-template.html */

@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600&family=Inter:wght@400;500;600&family=IBM+Plex+Mono:wght@500&display=swap');

:root {
  --bg: #F5F4EF;
  --bg-alt: #ECE9DF;
  --ink: #1A1A17;
  --ink-soft: #5B5A53;
  --ink-faint: #8C8A80;
  --line: #D8D4C7;
  --accent: #2C5C6B;
  --accent-soft: #DCE7E8;
  --clay: #B5562B;
  --clay-soft: #F3E1D6;
  --max: 980px;

  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

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

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 28px;
}

/* ---------- Eyebrow / mono labels (signature device) ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--accent);
  text-transform: uppercase;
  margin: 0 0 14px;
}

.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  border-radius: 3px;
  padding: 3px 8px;
  margin: 0 6px 6px 0;
}

.tag.clay {
  color: var(--clay);
  background: var(--clay-soft);
}

/* ---------- Header / nav ---------- */
header.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--bg);
  border-bottom: 1px solid var(--line);
}

.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
}

.logo {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 16px;
  letter-spacing: 0.01em;
}

nav.links {
  display: flex;
  gap: 28px;
  font-size: 14px;
  color: var(--ink-soft);
}

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

.btn {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 13px;
  padding: 9px 16px;
  border-radius: 4px;
  border: 1px solid var(--ink);
  white-space: nowrap;
}

.btn.primary {
  background: var(--ink);
  color: var(--bg);
}

.btn.ghost {
  border-color: var(--line);
  color: var(--ink);
}

.btn:hover { opacity: 0.85; }

.menu-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  border-radius: 4px;
  font-size: 13px;
  padding: 8px 12px;
  font-family: var(--font-mono);
}

/* ---------- Section rhythm ---------- */
section {
  padding: 72px 0;
  border-bottom: 1px solid var(--line);
}

section:last-of-type { border-bottom: none; }

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  line-height: 1.15;
  margin: 0;
}

h1 { font-size: 42px; }
h2 { font-size: 28px; margin-bottom: 18px; }
h3 { font-size: 18px; margin-bottom: 8px; }

p { margin: 0 0 16px; color: var(--ink); }

.lede {
  font-size: 18px;
  color: var(--ink-soft);
  max-width: 620px;
}

.muted { color: var(--ink-soft); }

/* ---------- Hero ---------- */
.hero {
  padding-top: 96px;
  padding-bottom: 96px;
}

.hero h1 { max-width: 680px; margin-bottom: 20px; }

.hero-actions {
  display: flex;
  gap: 12px;
  margin-top: 28px;
}

/* ---------- Card grid ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.grid.three { grid-template-columns: repeat(3, 1fr); }
.grid.four { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--bg-alt);
  border-radius: 8px;
  padding: 24px;
  border: 1px solid var(--line);
}

.card h3 { margin-top: 4px; }

.card-link {
  display: inline-block;
  margin-top: 8px;
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
}

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

/* ---------- Metric cards ---------- */
.metric {
  background: var(--bg-alt);
  border-radius: 8px;
  padding: 20px;
  border: 1px solid var(--line);
}

.metric .num {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 600;
  margin-bottom: 4px;
}

.metric .label {
  font-size: 13px;
  color: var(--ink-soft);
}

/* ---------- Competency / principle list ---------- */
.tagcloud { display: flex; flex-wrap: wrap; gap: 10px; }

.tagcloud .pill {
  font-size: 14px;
  padding: 8px 14px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--bg-alt);
}

.principle {
  display: grid;
  grid-template-columns: 130px 1fr;
  gap: 18px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
}

.principle:first-of-type { border-top: none; }

.principle .key {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--clay);
  letter-spacing: 0.03em;
}

/* ---------- Image placeholder ---------- */
.media-placeholder {
  background: var(--bg-alt);
  border: 1px dashed var(--ink-faint);
  border-radius: 8px;
  min-height: 220px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-faint);
  text-align: center;
  padding: 16px;
}

/* ---------- Contact / form ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

form .field { margin-bottom: 16px; }

form label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 6px;
}

form input, form textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 15px;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--bg);
  color: var(--ink);
}

form input:focus, form textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

form textarea { min-height: 120px; resize: vertical; }

/* ---------- Footer ---------- */
footer.site-footer {
  padding: 28px 0;
}

footer.site-footer .wrap {
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--ink-faint);
}

/* ---------- Case study specific ---------- */
.cs-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  margin: 28px 0;
  padding: 20px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.cs-meta .item .k {
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 4px;
}

.cs-meta .item .v { font-size: 14px; font-weight: 500; }

.back-link {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--ink-soft);
  display: inline-block;
  margin-bottom: 24px;
}

.cs-nav-footer {
  display: flex;
  justify-content: space-between;
  padding-top: 28px;
}

/* ---------- Responsive ---------- */
@media (max-width: 760px) {
  nav.links { display: none; }
  .menu-toggle { display: inline-block; }
  .grid, .grid.three, .grid.four { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 28px; }
  .principle { grid-template-columns: 1fr; gap: 4px; }
  h1 { font-size: 32px; }
}