/* ─────────────────────────────────────────────────────────────
   Mezoo — Système visuel hybride
   ▸ Base Senior : palette bone/ink/laiton, italique serif, pills
   ▸ Signatures Stratum : monogramme géométrique, labels mono, data callouts
   Mode clair par défaut, dark via [data-theme="dark"] sur <html>.
   ───────────────────────────────────────────────────────────── */

:root {
  /* Palette — base Senior (laiton + bone) */
  --bone: #F1EDE6;
  --ivory: #F8F5EF;
  --bone-2: #E8E2D5;
  --ink: #18130E;
  --ink-2: #2A231D;
  --granit: #57534E;
  --stone: #A89F94;
  --line: #D7CFC2;
  --line-strong: #A89F94;

  --brass: #B07A1F;
  --brass-deep: #8C5E14;
  --brass-soft: #D9B679;
  --brass-tint: rgba(176, 122, 31, 0.08);

  /* Status (très discret, palette chaude) */
  --signal-ok: #1A6B4F;
  --signal-warn: #A66E2C;
  --signal-err: #8C1F1F;

  /* Sémantique (light) */
  --bg: var(--bone);
  --surface: var(--ivory);
  --surface-2: var(--bone-2);
  --fg: var(--ink);
  --fg-muted: var(--granit);
  --fg-subtle: var(--stone);
  --hairline: var(--line);
  --hairline-strong: var(--ink);
  --accent: var(--brass);
  --accent-deep: var(--brass-deep);
  --accent-fg: var(--ivory);

  /* Typographie */
  --font-display: "Inter Tight", system-ui, -apple-system, sans-serif;
  --font-body: "Inter Tight", system-ui, -apple-system, sans-serif;
  --font-serif: "Instrument Serif", Georgia, "Times New Roman", serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;

  /* Échelle typo (tweak +1 par défaut = "Affirmé") */
  --type-mult: 1.08;
  --fs-display-xl: calc(112px * var(--type-mult));
  --fs-display: calc(80px * var(--type-mult));
  --fs-display-sm: calc(56px * var(--type-mult));
  --fs-h2: calc(40px * var(--type-mult));
  --fs-h3: 24px;
  --fs-lead: 19px;
  --fs-body: 16px;
  --fs-small: 14px;
  --fs-mono: 11px;
  --fs-mono-sm: 10px;

  /* Espacement (densité "aéré" par défaut) */
  --space-mult: 1.18;
  --s-1: calc(4px * var(--space-mult));
  --s-2: calc(8px * var(--space-mult));
  --s-3: calc(12px * var(--space-mult));
  --s-4: calc(16px * var(--space-mult));
  --s-5: calc(24px * var(--space-mult));
  --s-6: calc(32px * var(--space-mult));
  --s-7: calc(48px * var(--space-mult));
  --s-8: calc(64px * var(--space-mult));
  --s-9: calc(96px * var(--space-mult));
  --s-10: calc(128px * var(--space-mult));

  /* Géométrie (angles vifs par défaut) */
  --r-base: 2px;
  --r-card: 2px;
  --r-pill: 999px;

  /* Containers */
  --container: 1280px;
  --container-wide: 1440px;
  --gutter: clamp(24px, 5vw, 64px);

  /* Motion */
  --ease-out: cubic-bezier(0.2, 0.8, 0.2, 1);
  --ease-snap: cubic-bezier(0.4, 0, 0.2, 1);
  --dur-fast: 160ms;
  --dur-base: 240ms;
  --dur-slow: 480ms;
}

/* Dark mode */
[data-theme="dark"] {
  --bg: #0E0B08;
  --surface: #15110C;
  --surface-2: #1C1813;
  --fg: var(--bone);
  --fg-muted: #A89F94;
  --fg-subtle: #6E665C;
  --hairline: #2A241D;
  --hairline-strong: var(--bone);
  --accent: #D9B679;
  --accent-deep: var(--brass);
  --accent-fg: #18130E;
}

/* ── Tweaks-driven overrides (data-attrs on <html>) ──────────────── */
[data-density="compact"] { --space-mult: 0.78; }
[data-density="cozy"] { --space-mult: 1; }
[data-density="spacious"] { --space-mult: 1.18; }

[data-typescale="-1"] { --type-mult: 0.9; }
[data-typescale="0"] { --type-mult: 1; }
[data-typescale="1"] { --type-mult: 1.08; }

[data-radius="sharp"] { --r-base: 0px; --r-card: 0px; }
[data-radius="hairline"] { --r-base: 2px; --r-card: 2px; }
[data-radius="soft"] { --r-base: 6px; --r-card: 8px; }
[data-radius="round"] { --r-base: 10px; --r-card: 14px; }

[data-accent="low"] { --accent: #C9A977; --accent-deep: #B07A1F; }
[data-accent="medium"] { --accent: #B07A1F; --accent-deep: #8C5E14; }
[data-accent="high"] { --accent: #D98A0A; --accent-deep: #B07A1F; }

/* ── Reset ───────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "ss01", "cv11";
  transition: background var(--dur-slow) var(--ease-out),
              color var(--dur-slow) var(--ease-out);
}
body { min-height: 100vh; overflow-x: hidden; }

h1, h2, h3, h4, h5, p { margin: 0; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
a { color: inherit; text-decoration: none; }

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

/* ── Type primitives ─────────────────────────────────────────────── */
.mz-display {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--fs-display);
  letter-spacing: -0.04em;
  line-height: 0.95;
  text-wrap: balance;
}
.mz-display-xl {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--fs-display-xl);
  letter-spacing: -0.045em;
  line-height: 0.92;
  text-wrap: balance;
}
.mz-h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--fs-h2);
  letter-spacing: -0.03em;
  line-height: 1.05;
  text-wrap: balance;
}
.mz-h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: var(--fs-h3);
  letter-spacing: -0.02em;
  line-height: 1.2;
}
.mz-lead {
  font-size: var(--fs-lead);
  line-height: 1.5;
  color: var(--fg-muted);
  letter-spacing: -0.005em;
  text-wrap: pretty;
}
.mz-body { font-size: var(--fs-body); line-height: 1.6; color: var(--fg-muted); text-wrap: pretty; }
.mz-mono { font-family: var(--font-mono); font-size: var(--fs-mono); letter-spacing: 0.04em; }
.mz-eyebrow {
  font-family: var(--font-mono);
  font-size: var(--fs-mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-subtle);
  font-weight: 500;
}
.mz-eyebrow-line {
  display: inline-flex; align-items: center; gap: 12px;
}
.mz-eyebrow-line::before {
  content: ""; width: 24px; height: 1px; background: var(--accent);
}

.mz-italic {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  color: var(--accent);
  letter-spacing: -0.005em;
}

/* Tabular numerals for stats / mono */
.mz-mono, .mz-eyebrow, .mz-stat-value { font-variant-numeric: tabular-nums; }

/* ── Layout ──────────────────────────────────────────────────────── */
.mz-container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding-inline: var(--gutter);
}
.mz-container-wide {
  width: 100%;
  max-width: var(--container-wide);
  margin: 0 auto;
  padding-inline: var(--gutter);
}

/* ── Hairlines & rules ───────────────────────────────────────────── */
.mz-hr { border: 0; border-top: 1px solid var(--hairline); margin: 0; }
.mz-hr-ink { border: 0; border-top: 1px solid var(--fg); margin: 0; }

/* ── Buttons ─────────────────────────────────────────────────────── */
.mz-btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 13px 22px;
  font-family: inherit; font-size: 14px; font-weight: 500;
  letter-spacing: -0.01em;
  border-radius: var(--r-pill);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform var(--dur-fast) var(--ease-out),
              background var(--dur-base) var(--ease-out),
              color var(--dur-base) var(--ease-out),
              border-color var(--dur-base) var(--ease-out);
  white-space: nowrap;
}
.mz-btn:active { transform: translateY(1px); }

.mz-btn-primary { background: var(--fg); color: var(--bg); }
.mz-btn-primary:hover { background: var(--ink-2); }

.mz-btn-accent { background: var(--accent); color: var(--accent-fg); }
.mz-btn-accent:hover { background: var(--accent-deep); }

.mz-btn-ghost { background: transparent; color: var(--fg); border-color: var(--fg); }
.mz-btn-ghost:hover { background: var(--fg); color: var(--bg); }

.mz-btn-quiet { background: transparent; color: var(--fg); padding: 13px 16px; }
.mz-btn-quiet:hover { color: var(--accent); }

/* Tech-flavored square button (Stratum signature) */
.mz-btn-tech {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 10px 16px; font-family: var(--font-mono); font-size: 12px;
  letter-spacing: 0.04em; border: 1px solid var(--hairline-strong);
  background: transparent; color: var(--fg); border-radius: var(--r-base);
  cursor: pointer;
  transition: background var(--dur-base) var(--ease-out),
              color var(--dur-base) var(--ease-out);
}
.mz-btn-tech:hover { background: var(--fg); color: var(--bg); }

/* ── Card ────────────────────────────────────────────────────────── */
.mz-card {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--r-card);
  padding: var(--s-5);
  transition: transform var(--dur-base) var(--ease-out),
              border-color var(--dur-base) var(--ease-out),
              background var(--dur-base) var(--ease-out);
}
.mz-card-link { display: block; cursor: pointer; position: relative; overflow: hidden; }
.mz-card-link:hover { transform: translateY(-3px); border-color: var(--accent); }

/* ── Inline tech callout / spec strip ───────────────────────────── */
.mz-callout {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 11px;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--fg-muted);
}
.mz-callout-dot {
  width: 6px; height: 6px; border-radius: 999px; background: var(--accent);
}
.mz-callout-square {
  width: 6px; height: 6px; background: var(--accent);
}

/* ── Form fields ─────────────────────────────────────────────────── */
.mz-field {
  width: 100%;
  padding: 14px 16px;
  background: transparent;
  border: 1px solid var(--hairline);
  border-radius: var(--r-base);
  font: inherit; color: var(--fg);
  transition: border-color var(--dur-base) var(--ease-out),
              background var(--dur-base) var(--ease-out);
}
.mz-field:hover { border-color: var(--fg-muted); }
.mz-field:focus { outline: none; border-color: var(--accent); background: var(--surface); }
.mz-field::placeholder { color: var(--fg-subtle); }

textarea.mz-field { resize: vertical; min-height: 120px; line-height: 1.55; }

.mz-field-error { border-color: var(--signal-err); }

/* ── Scroll-reveal ───────────────────────────────────────────────── */
.mz-reveal {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
}
.mz-reveal.is-in {
  opacity: 1;
  transform: none;
}
@media (prefers-reduced-motion: reduce) {
  .mz-reveal { opacity: 1; transform: none; transition: none; }
  html { transition: none; }
}

/* ── Page transitions ────────────────────────────────────────────── */
.mz-page {
  animation: mz-page-in 360ms var(--ease-out) forwards;
}
@keyframes mz-page-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}

/* ── Underline link ──────────────────────────────────────────────── */
.mz-link {
  position: relative;
  display: inline-flex; align-items: baseline; gap: 6px;
  color: var(--fg);
  transition: color var(--dur-base) var(--ease-out);
}
.mz-link::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -2px;
  height: 1px; background: currentColor; transform-origin: 0 50%;
  transform: scaleX(0); transition: transform var(--dur-base) var(--ease-out);
}
.mz-link:hover { color: var(--accent); }
.mz-link:hover::after { transform: scaleX(1); }

/* ── Background "paper" tile (very subtle warm grain in dark mode) ── */
[data-theme="dark"] body::before {
  content: ""; position: fixed; inset: 0; pointer-events: none;
  background:
    radial-gradient(circle at 20% 30%, rgba(176,122,31,0.04) 0%, transparent 40%),
    radial-gradient(circle at 80% 80%, rgba(176,122,31,0.03) 0%, transparent 35%);
  z-index: 0;
}

/* ─────────────────────────────────────────────────────────────────
   Responsive — tablet ≤920px, mobile ≤640px
   Most layout grids in JSX are inline-styled with explicit ratios;
   we collapse them via [style*=...] selectors with !important. Inner
   utility grids inside SpecCard / form (which don't sit directly inside
   main > section) are scoped out so we don't break SpecRows.
   ───────────────────────────────────────────────────────────────── */

/* Responsive type — clamp display sizes to viewport without losing
   the type-scale tweak control on desktop. */
@media (max-width: 920px) {
  :root {
    --fs-display-xl: clamp(44px, 10vw, calc(112px * var(--type-mult)));
    --fs-display: clamp(34px, 7.5vw, calc(80px * var(--type-mult)));
    --fs-display-sm: clamp(28px, 6vw, calc(56px * var(--type-mult)));
    --fs-h2: clamp(24px, 4.6vw, calc(40px * var(--type-mult)));
    --fs-h3: 22px;
    --fs-lead: 17px;
    --fs-body: 15px;
    --gutter: clamp(20px, 5vw, 32px);
  }
}

@media (max-width: 920px) {
  /* Collapse layout grids. We only target grids whose template strings
     contain ratios that imply a "two side-by-side regions" intent — the
     small fixed 2-col grids inside cards keep their layout. */
  main > section [style*="grid-template-columns: repeat(2"],
  main > section [style*="grid-template-columns: repeat(3"],
  main > section [style*="grid-template-columns: 1fr 1.6fr"],
  main > section [style*="grid-template-columns: 1.6fr 1fr"],
  main > section [style*="grid-template-columns: 1.4fr 1fr"],
  main > section [style*="grid-template-columns: 1.5fr 1fr"],
  main > section [style*="grid-template-columns: 1.35fr 1fr"],
  main > section [style*="grid-template-columns: 220px 1fr"],
  main > section [style*="grid-template-columns: 1fr 1fr"] {
    grid-template-columns: 1fr !important;
  }
  /* Stats & vitals: 4 / 6 → 2 columns */
  main > section [style*="grid-template-columns: repeat(4"],
  main > section [style*="grid-template-columns: repeat(6"] {
    grid-template-columns: repeat(2, 1fr) !important;
  }

  /* Sticky aside columns release on mobile */
  main aside[style*="sticky"] {
    position: static !important;
    top: auto !important;
  }

  /* Footer collapse */
  footer .mz-container-wide[style*="grid-template-columns"] {
    grid-template-columns: 1fr !important;
    gap: var(--s-5) !important;
  }
}

@media (max-width: 640px) {
  /* Tighten gutters & top-bar */
  main > section { padding-inline: 0 !important; }
  main > section > .mz-container,
  main > section > .mz-container-wide { padding-inline: var(--gutter); }

  /* Hero subtitle / stats: 2-col → 1-col on phones for breathing */
  main > section [style*="grid-template-columns: repeat(4"],
  main > section [style*="grid-template-columns: repeat(6"] {
    grid-template-columns: 1fr 1fr !important;
    gap: var(--s-3) !important;
  }

  /* Form sub-grids: shrink */
  form fieldset [style*="grid-template-columns: 1fr 1fr"] {
    grid-template-columns: 1fr !important;
  }

  /* Segmented controls: vertical stack instead of horizontal squish */
  .mz-segmented[data-cols] {
    grid-template-columns: 1fr !important;
  }

  /* Buttons full-width when they're the only CTA in a row */
  .mz-btn-block-mobile { width: 100%; justify-content: center; }
}

/* ─── TopBar: mobile menu ───────────────────────────────────────── */
.mz-burger.mz-nav-mobile { display: none; }
@media (max-width: 720px) {
  .mz-meta-strip-detail { display: none !important; }
  .mz-nav-desktop { display: none !important; }
  .mz-burger.mz-nav-mobile { display: inline-flex !important; }
}

.mz-mobile-menu {
  position: fixed; inset: 0; z-index: 60;
  background: var(--bg);
  display: flex; flex-direction: column;
  padding: 0;
  animation: mz-page-in 240ms var(--ease-out) both;
}
.mz-mobile-menu-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px var(--gutter); border-bottom: 1px solid var(--hairline);
}
.mz-mobile-menu-list {
  display: flex; flex-direction: column;
  flex: 1; padding: var(--s-5) var(--gutter);
  gap: var(--s-3);
}
.mz-mobile-menu-list button {
  font-family: var(--font-display);
  font-size: clamp(28px, 8vw, 44px); font-weight: 500;
  letter-spacing: -0.03em; text-align: left;
  padding: 12px 0;
  border-bottom: 1px solid var(--hairline);
  display: flex; justify-content: space-between; align-items: baseline;
  color: var(--fg);
}
.mz-mobile-menu-list button[aria-current="true"] { color: var(--accent); }
.mz-mobile-menu-foot {
  padding: var(--s-5) var(--gutter) var(--s-6);
  border-top: 1px solid var(--hairline);
  display: flex; flex-direction: column; gap: var(--s-3);
}

.mz-burger {
  width: 40px; height: 40px;
  display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--hairline-strong);
  border-radius: var(--r-base);
}
.mz-burger svg { display: block; }

/* ─── Tweaks panel: keep usable on touch / mobile ────────────────── */
@media (max-width: 640px) {
  .twk-panel {
    width: calc(100vw - 24px) !important;
    max-width: 360px;
    right: 12px !important;
    bottom: 12px !important;
    max-height: calc(100vh - 140px) !important;
  }
  .twk-body { max-height: calc(100vh - 220px) !important; overflow-y: auto; }
}

/* ─── Touch-target sizing ───────────────────────────────────────── */
@media (hover: none) and (pointer: coarse) {
  .mz-btn { min-height: 48px; padding: 14px 22px; }
  .mz-field { min-height: 48px; padding: 14px 16px; }
  /* On touch devices, surface the hover/state without requiring hover */
  .mz-card-link { transition: box-shadow var(--dur-base) var(--ease-out); }
}

/* ─── Tabular numerals everywhere we want stable widths ──────────── */
.mz-stat-value { font-feature-settings: "tnum"; }

/* ─── Visual sims: shared placeholders for SVG mock content ─────── */
.mz-mock {
  width: 100%; aspect-ratio: var(--mock-ratio, 16 / 9);
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: var(--r-card);
  position: relative; overflow: hidden;
  isolation: isolate;
}
.mz-mock-grid::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, var(--hairline) 1px, transparent 1px),
    linear-gradient(to bottom, var(--hairline) 1px, transparent 1px);
  background-size: 32px 32px;
  opacity: 0.4; pointer-events: none;
}
.mz-mock-tlabel {
  position: absolute; top: 12px; left: 12px;
  font-family: var(--font-mono); font-size: 10px;
  color: var(--fg-subtle); letter-spacing: 0.14em; text-transform: uppercase;
  display: inline-flex; align-items: center; gap: 8px;
}
.mz-mock-tlabel::before {
  content: ""; width: 6px; height: 6px; background: var(--accent);
}
.mz-mock-trlabel {
  position: absolute; top: 12px; right: 12px;
  font-family: var(--font-mono); font-size: 10px;
  color: var(--fg-subtle); letter-spacing: 0.1em;
}

