/* ============================================================
   STR Tech Talk — shared stylesheet
   Type: Bricolage Grotesque (display) / Instrument Sans (body)
         IBM Plex Mono (labels, small caps)
   ============================================================ */

:root {
  --paper: #fbfaf7;
  --ink: #17242e;
  --ink-soft: #46555f;
  --line: #d9d5cc;
  --line-dark: #17242e;
  --accent: #0e7a6e;        /* deep teal */
  --accent-dark: #0a5a51;
  --wash: #f1efe9;          /* section wash, warm neutral */
  --max: 1120px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "Instrument Sans", sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: "Bricolage Grotesque", sans-serif;
  line-height: 1.1;
  letter-spacing: -0.015em;
  font-weight: 700;
}

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

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

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- eyebrow label ---------- */
.eyebrow {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-bottom: 16px;
}

/* ---------- header ---------- */
.site-header {
  border-bottom: 1px solid var(--line);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 50;
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand { display: flex; align-items: center; gap: 12px; }
.brand img { height: 44px; width: auto; }

.site-nav { display: flex; align-items: center; gap: 32px; }

.site-nav a {
  color: var(--ink);
  font-weight: 500;
  font-size: 15px;
  border-bottom: 2px solid transparent;
  padding: 4px 0;
}
.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* ---------- buttons: flat, squared, no pills ---------- */
.btn {
  display: inline-block;
  font-family: "Instrument Sans", sans-serif;
  font-weight: 600;
  font-size: 16px;
  padding: 14px 28px;
  border: 2px solid var(--ink);
  color: var(--ink);
  background: transparent;
  transition: background 0.15s, color 0.15s;
  cursor: pointer;
}
.btn:hover { background: var(--ink); color: var(--paper); }

.btn.btn-solid {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
.btn.btn-solid:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  color: #fff;
}

/* ---------- hero ---------- */
.hero { padding: 96px 0 88px; border-bottom: 1px solid var(--line); }

.hero h1 {
  font-size: clamp(44px, 7vw, 84px);
  margin-bottom: 24px;
}

.hero .tagline {
  font-size: clamp(19px, 2.4vw, 24px);
  font-weight: 600;
  margin-bottom: 20px;
}

.hero p.lede {
  max-width: 620px;
  color: var(--ink-soft);
  font-size: 18px;
  margin-bottom: 40px;
}

.hero .cta-row { display: flex; gap: 16px; flex-wrap: wrap; }

/* ---------- generic section ---------- */
.section { padding: 80px 0; }
.section.washed { background: var(--wash); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}
.section-head h2 { font-size: clamp(28px, 4vw, 44px); }
.section-head .more {
  font-family: "IBM Plex Mono", monospace;
  font-size: 13px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* ---------- service cards: bordered, flat ---------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  border-top: 1px solid var(--line-dark);
  border-left: 1px solid var(--line-dark);
}
.card {
  border-right: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
  padding: 40px 32px;
  background: var(--paper);
  display: flex;
  flex-direction: column;
}
.card .num {
  font-family: "IBM Plex Mono", monospace;
  font-size: 13px;
  color: var(--ink-soft);
  margin-bottom: 24px;
}
.card h3 { font-size: 24px; margin-bottom: 14px; }
.card p { color: var(--ink-soft); flex: 1; margin-bottom: 24px; }
.card .card-link { font-weight: 600; }
.card .card-link::after { content: " →"; }
.card .soon {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

/* ---------- blog preview ---------- */
.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 32px;
}
.post-card {
  border: 1px solid var(--line-dark);
  background: #fff;
  display: flex;
  flex-direction: column;
  color: var(--ink);
  transition: transform 0.15s;
}
.post-card:hover { transform: translateY(-4px); color: var(--ink); }
.post-card .thumb {
  aspect-ratio: 16 / 9;
  background: var(--wash);
  overflow: hidden;
  border-bottom: 1px solid var(--line-dark);
}
.post-card .thumb img { width: 100%; height: 100%; object-fit: cover; }
.post-card .body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.post-card .date {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  color: var(--ink-soft);
  margin-bottom: 10px;
}
.post-card h3 { font-size: 20px; margin-bottom: 10px; }
.post-card p { font-size: 15px; color: var(--ink-soft); flex: 1; }
.post-card .read { margin-top: 16px; font-weight: 600; font-size: 15px; color: var(--accent); }
.post-card .read::after { content: " →"; }

/* ---------- page hero (interior pages) ---------- */
.page-hero { padding: 72px 0 56px; border-bottom: 1px solid var(--line); }
.page-hero h1 { font-size: clamp(36px, 5.5vw, 64px); margin-bottom: 16px; }
.page-hero p { max-width: 640px; color: var(--ink-soft); font-size: 18px; }

/* ---------- split (text + image) ---------- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.split .frame { border: 1px solid var(--line-dark); }
@media (max-width: 820px) { .split { grid-template-columns: 1fr; gap: 40px; } }

/* ---------- numbered steps ---------- */
.steps { counter-reset: step; border-top: 1px solid var(--line-dark); }
.step {
  counter-increment: step;
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 24px;
  padding: 32px 0;
  border-bottom: 1px solid var(--line-dark);
}
.step::before {
  content: "0" counter(step);
  font-family: "IBM Plex Mono", monospace;
  font-size: 28px;
  color: var(--accent);
  line-height: 1.2;
}
.step h3 { font-size: 22px; margin-bottom: 8px; }
.step p { color: var(--ink-soft); }
@media (max-width: 600px) { .step { grid-template-columns: 56px 1fr; gap: 16px; } }

/* ---------- benefits list ---------- */
.benefit-list { list-style: none; }
.benefit-list li {
  padding: 20px 0 20px 36px;
  border-bottom: 1px solid var(--line);
  position: relative;
  color: var(--ink-soft);
}
.benefit-list li strong { color: var(--ink); display: block; margin-bottom: 4px; }
.benefit-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

/* ---------- checklist ---------- */
.check-list { list-style: none; }
.check-list li {
  padding: 14px 0 14px 34px;
  border-bottom: 1px solid var(--line);
  position: relative;
}
.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}
.check-list li ul { list-style: none; margin-top: 8px; }
.check-list li ul li { border: none; padding: 4px 0 4px 20px; color: var(--ink-soft); }
.check-list li ul li::before { content: "·"; color: var(--ink-soft); }

/* ---------- big CTA band ---------- */
.cta-band {
  background: var(--ink);
  color: var(--paper);
  padding: 80px 0;
}
.cta-band h2 { font-size: clamp(30px, 4.5vw, 52px); margin-bottom: 16px; }
.cta-band p { color: #b8c2c9; max-width: 560px; margin-bottom: 36px; font-size: 18px; }
.cta-band .btn { border-color: var(--paper); color: var(--paper); }
.cta-band .btn:hover { background: var(--paper); color: var(--ink); }
.cta-band .btn.btn-solid { background: var(--accent); border-color: var(--accent); color: #fff; }
.cta-band .btn.btn-solid:hover { background: #12967f; border-color: #12967f; }

/* ---------- footer ---------- */
.site-footer {
  border-top: 1px solid var(--line-dark);
  padding: 56px 0 40px;
}
.site-footer .cols {
  display: flex;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.site-footer .motto {
  font-family: "Bricolage Grotesque", sans-serif;
  font-size: 22px;
  font-weight: 700;
}
.site-footer nav { display: flex; gap: 24px; flex-wrap: wrap; }
.site-footer nav a { color: var(--ink); font-size: 15px; }
.site-footer nav a:hover { color: var(--accent); }
.site-footer .social { display: flex; gap: 20px; }
.site-footer .social a { font-size: 15px; color: var(--ink-soft); }
.site-footer .legal {
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
  padding-top: 24px;
}

@media (max-width: 640px) {
  .site-nav { gap: 18px; }
  .hero { padding: 64px 0 56px; }
}