/* ==========================================================================
   Apex CTO — visual system
   Concept: the drafting table. Structural-engineering precision drawn from
   George's background (electrical engineer, firmware, systems architect)
   and the site's "Architecture & Hands-On Build" positioning — dimension
   lines, title blocks, hairline panels — instead of a generic gradient/
   card-grid template.
   ========================================================================== */

@font-face {
  font-family: 'Big Shoulders Display';
  font-style: normal;
  font-weight: 700 900;
  font-display: swap;
  src: url('fonts/big-shoulders-display.woff2') format('woff2');
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('fonts/ibm-plex-mono-400.woff2') format('woff2');
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('fonts/ibm-plex-mono-500.woff2') format('woff2');
}
@font-face {
  font-family: 'IBM Plex Sans';
  font-style: normal;
  font-weight: 400 600;
  font-display: swap;
  src: url('fonts/ibm-plex-sans.woff2') format('woff2');
}

/* ---------- Tokens ---------- */
:root {
  --bg: #E4E1D6;
  --bg-raised: #DAD6C8;
  --bg-panel: #EEEBE1;
  --text: #20262C;
  --text-dim: #5A6169;
  --accent: #A85A1C;
  --accent-ink: #F7F4EC;
  --line: #C6C1B0;
  --line-strong: #4E6D7D;
  --grid: rgba(78,109,125,0.10);
  --shadow: rgba(32,38,44,0.10);
  --status-urgent: #A8452E;
  --status-referred: #4C7A5A;
  --status-portfolio: #6B5A8C;
  --logo-filter: none;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #12181F;
    --bg-raised: #1B222A;
    --bg-panel: #171E25;
    --text: #E9E6DD;
    --text-dim: #96A0A9;
    --accent: #DE8B42;
    --accent-ink: #14191F;
    --line: #2C353D;
    --line-strong: #5C7A8A;
    --grid: rgba(92,122,138,0.14);
    --shadow: rgba(0,0,0,0.35);
    --status-urgent: #D9694A;
    --status-referred: #6FA37F;
    --status-portfolio: #9884BE;
    --logo-filter: invert(1);
  }
}
:root[data-theme="dark"] {
  --bg: #12181F;
  --bg-raised: #1B222A;
  --bg-panel: #171E25;
  --text: #E9E6DD;
  --text-dim: #96A0A9;
  --accent: #DE8B42;
  --accent-ink: #14191F;
  --line: #2C353D;
  --line-strong: #5C7A8A;
  --grid: rgba(92,122,138,0.14);
  --shadow: rgba(0,0,0,0.35);
  --status-urgent: #D9694A;
  --status-referred: #6FA37F;
  --status-portfolio: #9884BE;
  --logo-filter: invert(1);
}
:root[data-theme="light"] {
  --bg: #E4E1D6;
  --bg-raised: #DAD6C8;
  --bg-panel: #EEEBE1;
  --text: #20262C;
  --text-dim: #5A6169;
  --accent: #A85A1C;
  --accent-ink: #F7F4EC;
  --line: #C6C1B0;
  --line-strong: #4E6D7D;
  --grid: rgba(78,109,125,0.10);
  --shadow: rgba(32,38,44,0.10);
  --status-urgent: #A8452E;
  --status-referred: #4C7A5A;
  --status-portfolio: #6B5A8C;
  --logo-filter: none;
}

/* ---------- Base ---------- */
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 40px 40px;
  color: var(--text);
  font-family: 'IBM Plex Sans', system-ui, sans-serif;
  font-weight: 400;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
@media (prefers-reduced-motion: no-preference) {
  a, button, .btn { transition: color .18s ease, background-color .18s ease, border-color .18s ease, transform .18s ease, box-shadow .18s ease; }
}
img { max-width: 100%; }
.wrap { max-width: 1180px; margin: 0 auto; padding: 0 28px; }
a { color: inherit; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--line-strong); outline-offset: 3px; }

.eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 10px;
}
.eyebrow::before { content: ''; width: 22px; height: 1px; background: var(--line-strong); display: inline-block; flex: none; }
.eyebrow.status-urgent { color: var(--status-urgent); }
.eyebrow.status-urgent::before { background: var(--status-urgent); }
.eyebrow.status-referred { color: var(--status-referred); }
.eyebrow.status-referred::before { background: var(--status-referred); }
.eyebrow.status-portfolio { color: var(--status-portfolio); }
.eyebrow.status-portfolio::before { background: var(--status-portfolio); }

h1, h2, h3 {
  font-family: 'Big Shoulders Display', sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.005em;
  line-height: 0.98;
  margin: 0;
}
h1 em, h2 em { font-style: normal; color: var(--accent); }
p { text-wrap: pretty; }

/* ---------- Header ---------- */
header.site {
  position: sticky; top: 0; z-index: 20;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}
.site-inner { display: flex; align-items: center; justify-content: space-between; padding: 16px 0; gap: 24px; }
.wordmark { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.wordmark img { height: 40px; width: auto; filter: var(--logo-filter); }
.wordmark-text { display: flex; flex-direction: column; line-height: 1; }
.wordmark-text .name { font-family: 'Big Shoulders Display', sans-serif; font-weight: 900; font-size: 1.15rem; letter-spacing: 0.02em; text-transform: uppercase; }
.wordmark-text small { font-family: 'IBM Plex Mono', monospace; font-weight: 400; font-size: 0.6rem; letter-spacing: 0.12em; color: var(--text-dim); text-transform: uppercase; margin-top: 4px; }
nav.primary { display: flex; gap: 26px; }
nav.primary a { font-family: 'IBM Plex Mono', monospace; font-size: 0.72rem; letter-spacing: 0.08em; text-transform: uppercase; text-decoration: none; color: var(--text-dim); border-bottom: 1px solid transparent; padding-bottom: 2px; }
nav.primary a:hover { color: var(--text); border-color: var(--line-strong); }
.header-actions { display: flex; align-items: center; gap: 20px; }

.btn {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.76rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: 2px;
  border: 1px solid transparent;
  cursor: pointer;
  line-height: 1;
}
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 16px var(--shadow); }
.btn-ghost { border-color: var(--line-strong); color: var(--text); background: transparent; }
.btn-ghost:hover { background: var(--bg-raised); }
.btn-block { width: 100%; justify-content: center; }

/* ---------- Hero ---------- */
.hero { padding: 64px 0 0; }
.hero .tag-row { display: flex; gap: 10px; margin-bottom: 18px; flex-wrap: wrap; }
.hero h1 { font-size: clamp(2.4rem, 3.2vw + 1.4rem, 4.6rem); margin-top: 18px; max-width: 17ch; }
.hero-sub { font-size: 1.1rem; color: var(--text-dim); max-width: 58ch; margin-top: 20px; }
.hero-actions { display: flex; gap: 14px; margin-top: 30px; flex-wrap: wrap; }

.titleblock {
  margin-top: 48px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.titleblock div { padding: 16px 20px; border-left: 1px solid var(--line); }
.titleblock div:first-child { border-left: none; padding-left: 0; }
.tb-label { font-family: 'IBM Plex Mono', monospace; font-size: 0.64rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-dim); margin-bottom: 6px; }
.tb-value { font-family: 'IBM Plex Sans', sans-serif; font-weight: 600; font-size: 0.98rem; }
.tb-value.accent { color: var(--accent); }

/* ---------- Sections ---------- */
section { padding: 80px 0; }
section.tight { padding: 56px 0; }
section.flush-top { padding-top: 0; }
.section-head { display: grid; grid-template-columns: 220px 1fr; gap: 28px; margin-bottom: 40px; align-items: end; }
.section-head h2 { font-size: clamp(1.8rem, 1.4vw + 1.3rem, 2.5rem); }
.section-head p { color: var(--text-dim); max-width: 60ch; margin: 0; }
hr.rule { border: none; border-top: 1px solid var(--line); margin: 0 0 40px; }

/* ---------- Panels ---------- */
.panels { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); }
.panels.cols-2 { grid-template-columns: repeat(2, 1fr); }
.panel { background: var(--bg-panel); padding: 26px 24px; position: relative; }
.panel .tag { font-family: 'IBM Plex Mono', monospace; font-size: 0.64rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); margin-bottom: 12px; display: block; }
.panel h3 { font-family: 'IBM Plex Sans', sans-serif; text-transform: none; font-weight: 600; font-size: 1.1rem; letter-spacing: 0; line-height: 1.3; margin-bottom: 10px; }
.panel p { color: var(--text-dim); font-size: 0.93rem; margin: 0; }
.panel ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 8px; }
.panel li { font-size: 0.88rem; color: var(--text-dim); padding-left: 16px; position: relative; }
.panel li::before { content: '—'; position: absolute; left: 0; color: var(--accent); }
.panel.lead { background: var(--bg); }
.panel.lead .tag { color: var(--accent); }
.panel::before, .panel::after { content: ''; position: absolute; width: 9px; height: 9px; top: 0; left: 0; opacity: .55; }
.panel::before { border-top: 1px solid var(--line-strong); border-left: 1px solid var(--line-strong); }
.panel::after { top: auto; left: auto; bottom: 0; right: 0; border-bottom: 1px solid var(--line-strong); border-right: 1px solid var(--line-strong); }

/* ---------- Two-column w/ eyebrow rail (about, etc) ---------- */
.rail-grid { display: grid; grid-template-columns: 220px 1fr; gap: 28px; }
.rail-grid .prose { max-width: 68ch; }
.rail-grid .prose p { margin: 0 0 20px; color: var(--text-dim); }
.rail-grid .prose p:last-child { margin-bottom: 0; }
.rail-grid .prose strong { color: var(--text); }

/* ---------- Work / engagement ---------- */
.work-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); margin-bottom: 1px; }
.work-card { background: var(--bg-panel); padding: 30px; }
.work-card h3 { font-family: 'IBM Plex Sans', sans-serif; text-transform: none; letter-spacing: 0; font-weight: 600; font-size: 1.25rem; margin-bottom: 8px; }
.work-card p.lede { color: var(--text-dim); margin: 0 0 16px; }
.work-card ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.work-card li { font-size: 0.9rem; padding-left: 18px; position: relative; }
.work-card li::before { content: '—'; position: absolute; left: 0; color: var(--accent); }

.tiers { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); margin-top: 24px; }
.tier { background: var(--bg-panel); padding: 20px 18px; }
.tier .code { font-family: 'IBM Plex Mono', monospace; font-size: 0.66rem; color: var(--text-dim); letter-spacing: 0.1em; }
.tier h4 { font-family: 'IBM Plex Sans', sans-serif; font-weight: 600; font-size: 1rem; margin: 8px 0 8px; text-transform: none; }
.tier p { font-size: 0.83rem; color: var(--text-dim); margin: 0 0 4px; }
.tier.featured { background: var(--bg); box-shadow: inset 0 0 0 1px var(--accent); }
.tier.featured .code { color: var(--accent); }

/* ---------- Process steps ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.step .num { font-family: 'IBM Plex Mono', monospace; font-size: 0.72rem; color: var(--accent); letter-spacing: 0.08em; }
.step h3 { font-family: 'IBM Plex Sans', sans-serif; text-transform: none; letter-spacing: 0; font-weight: 600; font-size: 1.05rem; margin: 8px 0 8px; }
.step p { font-size: 0.9rem; color: var(--text-dim); margin: 0; }

/* ---------- FAQ ---------- */
.faq-list { display: grid; gap: 0; }
.faq-item { padding: 24px 0; border-bottom: 1px solid var(--line); display: grid; grid-template-columns: 280px 1fr; gap: 28px; }
.faq-item:first-child { border-top: 1px solid var(--line); }
.faq-q { font-family: 'IBM Plex Sans', sans-serif; font-weight: 600; font-size: 1rem; }
.faq-a { color: var(--text-dim); font-size: 0.94rem; margin: 0; }

/* ---------- Quote / testimonial ---------- */
.quote { background: var(--bg-panel); border: 1px solid var(--line); padding: 26px 24px; position: relative; }
.quote p.q { font-size: 0.98rem; color: var(--text); margin: 0 0 14px; }
.quote p.who { font-family: 'IBM Plex Mono', monospace; font-size: 0.72rem; color: var(--text-dim); letter-spacing: 0.04em; margin: 0; }

/* ---------- CTA ---------- */
.cta { background: var(--text); color: var(--bg); padding: 68px 0; }
.cta .wrap { display: flex; justify-content: space-between; align-items: center; gap: 32px; flex-wrap: wrap; }
.cta h2 { color: var(--bg); font-size: clamp(1.7rem, 2vw + 1.1rem, 2.4rem); max-width: 16ch; }
.cta .status { font-family: 'IBM Plex Mono', monospace; font-size: 0.76rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); margin-bottom: 10px; display: block; }
.cta p.sub { color: var(--bg); opacity: .72; margin: 10px 0 0; max-width: 46ch; }
.cta .btn-primary { background: var(--accent); color: var(--accent-ink); }

/* ---------- Footer ---------- */
footer.site { padding: 30px 0; border-top: 1px solid var(--line); }
footer.site .wrap { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
footer.site p { font-family: 'IBM Plex Mono', monospace; font-size: 0.7rem; color: var(--text-dim); margin: 0; letter-spacing: 0.04em; }
footer.site a.vcard-link { display: inline-flex; align-items: center; gap: 8px; }

/* ---------- Utility ---------- */
.center { text-align: center; }
.mono { font-family: 'IBM Plex Mono', monospace; }

@media (max-width: 860px) {
  .section-head, .rail-grid { grid-template-columns: 1fr; }
  .panels, .panels.cols-2 { grid-template-columns: 1fr; }
  .work-grid { grid-template-columns: 1fr; }
  .tiers, .steps { grid-template-columns: 1fr 1fr; }
  .titleblock { grid-template-columns: 1fr 1fr; }
  .titleblock div:nth-child(3) { border-left: none; }
  .faq-item { grid-template-columns: 1fr; gap: 8px; }
  nav.primary { display: none; }
  .cta .wrap { flex-direction: column; align-items: flex-start; }
}