/* =================================================================
   XTEMPLATES · shared theme framework
   Everything is driven by CSS custom properties set per-template in
   an inline <style>:root{...}</style> block, so palette + type swap
   without touching markup. Layout archetypes live in archetypes.css;
   navigation lives in menus.css.
   ================================================================= */

:root {
  --bg: #ffffff;
  --fg: #0a0a0a;
  --muted: #6f6f6f;
  --line: #e4e4e4;
  --soft: #f3f3f3;
  --accent: #0a0a0a;
  --accent-fg: #ffffff;
  --font-display: 'Inter', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-mono: ui-monospace, 'SFMono-Regular', monospace;
  --radius: 0px;
  --maxw: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 800;
  line-height: 1.02;
  letter-spacing: -0.02em;
  margin: 0;
}

p { margin: 0; }

::selection { background: var(--accent); color: var(--accent-fg); }

/* --- Reusable bits -------------------------------------------- */
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto;
        padding-left: 24px; padding-right: 24px; }
.mono { font-family: var(--font-mono); }
.muted { color: var(--muted); }
.kicker {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.32em; text-transform: uppercase;
  color: var(--muted);
}
.eyebrow {
  display: inline-block; font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.28em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 14px;
}
.display { font-size: clamp(2.6rem, 8vw, 6.4rem); }
.display-xl { font-size: clamp(3rem, 12vw, 9rem); }
.lead { font-size: clamp(1.05rem, 2vw, 1.5rem); line-height: 1.4;
        color: var(--muted); }
.rule { height: 1px; background: var(--line); border: 0; width: 100%; }
.rule-strong { height: 2px; background: var(--fg); border: 0; }

.tag {
  display: inline-block; font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.18em; text-transform: uppercase;
  padding: 6px 12px; border: 1px solid var(--line);
  border-radius: 999px; color: var(--muted);
}

.btn {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 12px; font-weight: 600;
  letter-spacing: 0.18em; text-transform: uppercase;
  padding: 14px 26px; border-radius: var(--radius);
  background: var(--accent); color: var(--accent-fg);
  border: 1px solid var(--accent); cursor: pointer;
  transition: transform 0.18s ease, opacity 0.18s ease;
}
.btn:hover { transform: translateY(-2px); opacity: 0.92; }
.btn-ghost { background: transparent; color: var(--fg);
             border-color: var(--fg); }

.section { padding: clamp(48px, 9vw, 130px) 0; }
.section-sm { padding: clamp(32px, 5vw, 70px) 0; }

/* CSS-generated "media" placeholders — no external images, so the
   thumbnails stay self-contained and fast. */
.ph { position: relative; overflow: hidden; background: var(--soft);
      border-radius: var(--radius); }
.ph-1 { background:
  linear-gradient(135deg, var(--accent), transparent 70%), var(--soft); }
.ph-2 { background:
  repeating-linear-gradient(45deg, var(--line) 0 2px,
    transparent 2px 16px), var(--soft); }
.ph-3 { background:
  radial-gradient(circle at 30% 30%, var(--accent) 0, transparent 40%),
  radial-gradient(circle at 75% 70%, var(--fg) 0, transparent 35%),
  var(--soft); }
.ph-4 { background:
  repeating-linear-gradient(0deg, var(--line) 0 1px,
    transparent 1px 22px),
  repeating-linear-gradient(90deg, var(--line) 0 1px,
    transparent 1px 22px), var(--soft); }
.ph-5 { background:
  conic-gradient(from 220deg at 60% 40%, var(--accent), var(--soft),
    var(--fg), var(--accent)); }
.ph-6 { background:
  radial-gradient(var(--fg) 1.4px, transparent 1.5px) 0 0 / 14px 14px,
  var(--soft); }

.grid { display: grid; gap: 24px; }
.flow > * + * { margin-top: var(--flow, 18px); }

/* --- In-browser editing (window.isEditing contract) ----------- */
[contenteditable='true'] { caret-color: var(--accent); outline: none;
  cursor: text; border-radius: 3px; }
[contenteditable='true']:hover {
  background: color-mix(in srgb, var(--accent) 8%, transparent); }
[contenteditable='true']:focus {
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  box-shadow: inset 0 0 0 1px var(--accent); }
body.is-editing { cursor: text; }

/* Per-template identity badge (top-left, unobtrusive) */
.xbadge {
  position: fixed; top: 8px; left: 8px; z-index: 80;
  font-family: var(--font-mono); font-size: 9px; font-weight: 600;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--muted); opacity: 0.5; pointer-events: none;
}

@media (max-width: 720px) {
  .wrap { padding-left: 18px; padding-right: 18px; }
}