/* Books, direct-sales page. Same terminal-session identity as
   britleyhoffconsulting.com (dark = CRT default, light = paper). */

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600;700&family=IBM+Plex+Sans:wght@400;500;600&display=swap');

:root {
  --ink: #1a0a12;
  --ink-2: #241019;
  --ink-3: #341824;
  --wine: #993556;
  --rose: #d4537e;
  --rose-pale: #f4c0d1;
  --paper: #f5efe9;
  --paper-2: #ece0d7;
  --paper-3: #ddccc0;
  --ink-soft: #4a2430;

  --bg: var(--ink);
  --bg-panel: var(--ink-2);
  --bg-panel-2: var(--ink-3);
  --border: #55293a;
  --text: #f3e3e9;
  --text-dim: #c79aa8;
  --accent: var(--rose);
  --accent-soft: var(--rose-pale);

  --font-mono: 'IBM Plex Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  --font-sans: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  color-scheme: dark;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg: var(--paper);
    --bg-panel: #ffffff;
    --bg-panel-2: var(--paper-2);
    --border: var(--paper-3);
    --text: var(--ink-soft);
    --text-dim: #8a5c68;
    --accent: var(--wine);
    --accent-soft: var(--wine);
    color-scheme: light;
  }
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); }
a:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.wrap {
  max-width: 880px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ---------- eyebrow / field labels ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: var(--accent);
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 0.6em;
  margin: 0 0 1.25rem;
}
.eyebrow::before { content: '>>'; opacity: 0.7; }

/* ---------- slim header ---------- */
.hero-lite {
  border-bottom: 1px solid var(--border);
  padding: 3.5rem 0 3rem;
}
.hero-lite .session-tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-dim);
  margin-bottom: 1.5rem;
}
.hero-lite h1 {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.8rem, 4.5vw, 2.8rem);
  letter-spacing: -0.01em;
  margin: 0 0 0.75rem;
  color: var(--text);
}
.hero-lite .tagline {
  font-size: clamp(1rem, 2vw, 1.15rem);
  max-width: 52ch;
  color: var(--text-dim);
  margin: 0;
}
.hero-lite .back {
  display: inline-block;
  margin-top: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  text-decoration: none;
  color: var(--bg);
  background: var(--accent);
  padding: 0.8em 1.3em;
  border: 1px solid var(--accent);
  transition: background 0.15s ease, color 0.15s ease;
}
.btn:hover { background: transparent; color: var(--accent); }

/* ---------- sections ---------- */
section { padding: 4rem 0 5rem; }

/* ---------- book grid ---------- */
.book-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
@media (max-width: 760px) {
  .book-grid { grid-template-columns: 1fr; }
}

.book-card {
  border: 1px solid var(--border);
  background: var(--bg-panel);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.book-card .cover {
  width: 100%;
  aspect-ratio: 2 / 3;
  object-fit: cover;
  border: 1px solid var(--border);
  background: var(--bg-panel-2);
}

.book-card h2 {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  margin: 0;
  color: var(--text);
}

.book-card .summary {
  margin: 0;
  color: var(--text-dim);
  font-size: 0.92rem;
  flex-grow: 1;
}

.book-card .meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.book-card .price {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--accent);
}

.book-card .formats {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}
.book-card .formats span {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  border: 1px solid var(--border);
  padding: 0.25em 0.6em;
  color: var(--text-dim);
}

.book-card .btn { align-self: flex-start; }

/* ---------- status-line footer ---------- */
footer {
  border-top: 1px solid var(--border);
  background: var(--bg-panel);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-dim);
}
.status-line {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 1rem 1.5rem;
  max-width: 880px;
  margin: 0 auto;
}
.status-line a { color: var(--text-dim); }
.status-line a:hover { color: var(--accent); }
.status-line .sep { opacity: 0.4; margin: 0 0.5em; }
.status-ready { color: var(--accent); }