/* Impact ECU Docs — shared design tokens.
   Loaded by both the reader and the admin before their own stylesheet.
   The two brand colours and fonts are overridden at runtime by an inline
   <style> from appearance_css() (Admin → Appearance). */

:root {
  /* brand (defaults; appearance_css() overrides these four) */
  --m-navy: #2c3e50;
  --m-cyan: #2eb8e6;
  --m-cyan-ink: #146583;
  --m-cyan-soft: #e2f5fc;
  --m-cyan-soft-dark: #12313f;
  --font-display: "Barlow Condensed", "Arial Narrow", Arial, sans-serif;
  --font-body: "Open Sans", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;

  /* light theme */
  --m-bg: #f3f6f9;
  --m-paper: #ffffff;
  --m-line: #d9e1ea;
  --m-line-soft: #e8edf3;
  --m-ink: #1b2430;
  --m-muted: #62717f;
  --m-side: #eaeff4;
  --m-navy-ink: #ffffff;
  --m-ok: #2f9e63;
  --m-ok-soft: #e4f5ec;
  --m-warn: #c98a1d;
  --m-warn-soft: #fbf1dc;
  --m-bad: #cf4a4c;
  --m-bad-soft: #fbe6e6;
  --m-shadow: 0 6px 20px rgba(27, 36, 48, .10);
  --m-shadow-lg: 0 24px 60px rgba(27, 36, 48, .25);
  --m-radius: 10px;
  --m-radius-sm: 6px;
  --m-focus: 0 0 0 3px rgba(46, 184, 230, .45);

  /* type scale */
  --fs-xs: 11.5px;
  --fs-sm: 12.5px;
  --fs-base: 14.5px;
  --fs-md: 16px;
  --fs-lg: 20px;
  --fs-xl: 28px;
  --fs-2xl: 36px;

  color-scheme: light;
}

/* reader "garage mode" dark theme: toggled by <html data-theme="dark"> */
:root[data-theme="dark"] {
  --m-bg: #0f151b;
  --m-paper: #171f28;
  --m-line: #2a3642;
  --m-line-soft: #222d38;
  --m-ink: #e7edf3;
  --m-muted: #98a8b8;
  --m-side: #141c24;
  --m-cyan-ink: #6fd3f5;
  --m-cyan-soft: var(--m-cyan-soft-dark);
  --m-ok: #4cc783;
  --m-ok-soft: #153224;
  --m-warn: #e0a53a;
  --m-warn-soft: #3a2d12;
  --m-bad: #f06a6c;
  --m-bad-soft: #3d1d1e;
  --m-shadow: 0 6px 20px rgba(0, 0, 0, .5);
  --m-shadow-lg: 0 24px 60px rgba(0, 0, 0, .6);
  color-scheme: dark;
}

/* large-text mode (garage mode option) */
:root[data-text="large"] {
  --fs-xs: 13px;
  --fs-sm: 14.5px;
  --fs-base: 17px;
  --fs-md: 19px;
  --fs-lg: 23px;
  --fs-xl: 32px;
  --fs-2xl: 40px;
}

*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--m-bg);
  color: var(--m-ink);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--m-cyan-ink); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 { font-family: var(--font-display); margin: 0; line-height: 1.05; text-wrap: balance; }

img { max-width: 100%; height: auto; }

button, input, select, textarea { font: inherit; color: inherit; }

:focus-visible { outline: 2px solid var(--m-cyan); outline-offset: 2px; }

[hidden] { display: none !important; }

.visually-hidden {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; scroll-behavior: auto !important; }
}

/* ---- shared components (used by reader and admin) ---- */

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 38px; padding: 0 14px; border-radius: 8px;
  border: 1px solid var(--m-line); background: var(--m-paper); color: var(--m-ink);
  font: 600 var(--fs-sm) var(--font-body); cursor: pointer; white-space: nowrap; text-decoration: none;
}
.btn:hover { border-color: var(--m-cyan); text-decoration: none; }
.btn.primary { background: var(--m-navy); border-color: var(--m-navy); color: var(--m-navy-ink); }
.btn.primary:hover { filter: brightness(1.12); }
.btn.cyan { background: var(--m-cyan); border-color: var(--m-cyan); color: #062a3a; }
.btn.ghost { border-color: transparent; background: transparent; color: var(--m-cyan-ink); }
.btn.danger { color: var(--m-bad); border-color: var(--m-bad-soft); background: var(--m-bad-soft); }
.btn.sm { min-height: 30px; padding: 0 10px; font-size: var(--fs-xs); }
.btn.lg { min-height: 46px; padding: 0 18px; font-size: var(--fs-base); }
.btn[disabled], .btn[aria-disabled="true"] { opacity: .55; cursor: not-allowed; }
.btn svg { width: 16px; height: 16px; flex: none; }

.iconbtn {
  width: 40px; height: 40px; border-radius: 8px; border: 1px solid var(--m-line); background: var(--m-paper);
  display: inline-flex; align-items: center; justify-content: center; color: var(--m-ink); cursor: pointer;
}
.iconbtn:hover { border-color: var(--m-cyan); }
.iconbtn svg { width: 18px; height: 18px; }

/* version badge: default = current (green); .warn = updated recently (amber); .neutral = never revised; .bad = superseded */
.ver {
  display: inline-flex; align-items: center; gap: 6px; height: 24px; padding: 0 9px 0 7px; border-radius: 6px;
  background: var(--m-ok-soft); color: var(--m-ok); font: 700 15px var(--font-display); letter-spacing: .02em;
  border: 0; font-variant-numeric: tabular-nums; white-space: nowrap;
}
.ver i { width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.ver.warn { background: var(--m-warn-soft); color: var(--m-warn); }
.ver.bad { background: var(--m-bad-soft); color: var(--m-bad); }
.ver.neutral { background: var(--m-line-soft); color: var(--m-muted); }
.ver.sm { height: 21px; font-size: 13px; padding: 0 7px 0 6px; }

.pill {
  display: inline-flex; align-items: center; gap: 6px; height: 22px; padding: 0 8px; border-radius: 999px;
  font-size: var(--fs-xs); font-weight: 700; letter-spacing: .03em; white-space: nowrap;
}
.pill i { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.pill.ok { background: var(--m-ok-soft); color: var(--m-ok); }
.pill.warn { background: var(--m-warn-soft); color: var(--m-warn); }
.pill.bad { background: var(--m-bad-soft); color: var(--m-bad); }
.pill.mut { background: var(--m-line-soft); color: var(--m-muted); }
.pill.info { background: var(--m-cyan-soft); color: var(--m-cyan-ink); }

.tag-new {
  font-size: 10px; font-weight: 700; letter-spacing: .08em; color: var(--m-ok); background: var(--m-ok-soft);
  border-radius: 4px; padding: 1px 5px; text-transform: uppercase; white-space: nowrap;
}

.section-num {
  flex: none; width: 24px; height: 24px; border-radius: 6px; background: var(--m-navy); color: var(--m-navy-ink);
  font: 700 14px var(--font-display); display: inline-flex; align-items: center; justify-content: center;
}
.section-num.sub { background: transparent; color: var(--m-cyan-ink); border: 1px solid var(--m-line); font-size: 13px; }

.field { margin-bottom: 14px; }
.field label, .field .label {
  display: block; font-size: var(--fs-xs); letter-spacing: .08em; text-transform: uppercase; font-weight: 700;
  color: var(--m-muted); margin-bottom: 5px;
}
.field .help { font-size: var(--fs-sm); color: var(--m-muted); margin-top: 4px; }
.input, .field input[type="text"], .field input[type="email"], .field input[type="url"], .field input[type="password"],
.field input[type="date"], .field input[type="number"], .field input[type="search"], .field select, .field textarea {
  width: 100%; border: 1px solid var(--m-line); border-radius: 8px; background: var(--m-bg); padding: 9px 11px;
  font-size: var(--fs-base); color: var(--m-ink); min-height: 40px;
}
.field textarea { min-height: 90px; line-height: 1.45; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--m-cyan); box-shadow: var(--m-focus); }
.check { display: flex; align-items: center; gap: 9px; font-size: var(--fs-base); margin: 7px 0; cursor: pointer; }
.check input { width: 18px; height: 18px; accent-color: var(--m-navy); }

.alert { border-radius: var(--m-radius); padding: 10px 14px; font-size: var(--fs-base); border: 1px solid var(--m-line); background: var(--m-paper); }
.alert.ok { background: var(--m-ok-soft); border-color: transparent; color: var(--m-ok); }
.alert.warn { background: var(--m-warn-soft); border-color: transparent; color: #6d4a0a; }
.alert.bad { background: var(--m-bad-soft); border-color: transparent; color: var(--m-bad); }
.alert.info { background: var(--m-cyan-soft); border-color: transparent; color: var(--m-cyan-ink); }
:root[data-theme="dark"] .alert.warn { color: var(--m-warn); }

.card { background: var(--m-paper); border: 1px solid var(--m-line); border-radius: 12px; padding: 16px 18px; }
.card > h2 { font-size: var(--fs-lg); font-weight: 600; margin-bottom: 12px; }

.crumbs { font-size: var(--fs-sm); color: var(--m-muted); display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.crumbs a { color: var(--m-muted); }
.crumbs .sep { opacity: .5; }

.logo-plate { background: var(--logo, none) center / contain no-repeat; display: block; aspect-ratio: 360 / 227; }
:root[data-theme="dark"] .logo-plate, .on-dark .logo-plate { background-color: #fff; border-radius: 6px; padding: 2px; background-origin: content-box; }
