/* =============================================================================
   KAR — design system
   -----------------------------------------------------------------------------
   The one stylesheet every page loads first. It owns:

     1. Tokens      colour, type, space, radii, elevation, motion, containers
     2. Base        reset, body, headings, links, focus, selection
     3. Primitives  buttons, fields, cards, tables, badges, notices, verdicts,
                    metrics, spec lists, tabs, breadcrumbs, states, dialogs
     4. Chrome      the site header, navigation, drawer, language switch, footer

   Page sheets (home.css, chat.css, tools.css, editorial.css …) load after this
   one and compose these pieces; they do not redefine the palette, the type
   scale or the header. A change here propagates everywhere.

   Direction: editorial + automotive + technical. Brand navy on paper, gold
   and ice blue as the accents, hairline rules instead of shadows, square-ish
   corners, Archivo for display and interface, IBM Plex Mono for figures.
   Archivo has no Greek glyphs, so IBM Plex Sans sits behind it in every stack:
   Greek text renders in Plex, Latin in Archivo, and the browser only downloads
   the Plex faces a page actually needs.
   ============================================================================= */

:root {
  /* ── Raw palette ─────────────────────────────────────────────────────────── */
  /* Brand: "Navy Trust" — the deep, muted navy (#0f1b3d) and its lighter
     partner (#1e3a5f) that ran across the site for years before a later pass
     swapped in a brighter, more saturated blue. Restored from that history
     rather than invented; ice blue #C4CEE8 and gold #C9A24B remain the two
     accents from the brand deck. */
  --kar-navy-950: #070d1f;
  --kar-navy-900: #0b1530;
  --kar-navy-800: #0f1b3d;   /* the brand navy */
  --kar-navy-700: #1e3a5f;
  --kar-navy-600: #3b6fa0;
  --kar-navy-100: #e6e9f0;

  --kar-ice:      #c4cee8;   /* brand ice blue */
  --kar-ice-soft: #e7ebf6;
  --kar-ice-deep: #9eaed6;

  --kar-gold:      #c9a24b;  /* brand gold */
  --kar-gold-ink:  #7f6120;  /* gold as text on paper (AA) */
  --kar-gold-soft: #f4ecd9;
  --kar-gold-lit:  #d9b865;  /* gold on navy */

  --kar-paper:    #f5f4ef;   /* page ground */
  --kar-paper-2:  #eceae2;   /* sunken band */
  --kar-paper-3:  #dfdcd1;
  --kar-sheet:    #fdfcf9;   /* raised surface */

  --kar-ink:      #0a1233;
  --kar-ink-2:    #373f58;
  --kar-ink-3:    #626a7e;
  --kar-ink-4:    #9398a6;

  --kar-rule:      #d5d4cb;
  --kar-rule-soft: #e5e3db;

  /* Former copper names, kept so page sheets that read them get the gold. */
  --kar-copper:      var(--kar-gold);
  --kar-copper-ink:  var(--kar-gold-ink);
  --kar-copper-soft: var(--kar-gold-soft);
  --kar-copper-lit:  var(--kar-gold-lit);

  --kar-green:      #1d6b45;
  --kar-green-soft: #e1eee5;
  --kar-amber:      #95590a;
  --kar-amber-soft: #f5e9cf;
  --kar-red:        #a2301f;
  --kar-red-soft:   #f5e0da;

  /* ── Semantic colour ─────────────────────────────────────────────────────── */
  --c-bg:          var(--kar-paper);
  --c-surface:     var(--kar-sheet);
  --c-sunken:      var(--kar-paper-2);
  --c-text:        var(--kar-ink);
  --c-text-2:      var(--kar-ink-2);
  --c-text-3:      var(--kar-ink-3);
  --c-text-4:      var(--kar-ink-4);
  --c-rule:        var(--kar-rule);
  --c-rule-soft:   var(--kar-rule-soft);
  --c-rule-strong: var(--kar-ink);
  --c-brand:       var(--kar-navy-800);
  --c-brand-2:     var(--kar-navy-700);
  /* --c-accent is text-safe gold (kickers, roles, labels); --c-gold is the true
     brand gold for rules, markers and fills that carry no small text. */
  --c-accent:      var(--kar-gold-ink);
  --c-accent-ink:  #634b17;
  --c-accent-soft: var(--kar-gold-soft);
  --c-gold:        var(--kar-gold);
  --c-ice:         var(--kar-ice);
  --c-ice-soft:    var(--kar-ice-soft);
  --c-focus:       var(--kar-navy-600);
  --c-pos:         var(--kar-green);
  --c-pos-soft:    var(--kar-green-soft);
  --c-warn:        var(--kar-amber);
  --c-warn-soft:   var(--kar-amber-soft);
  --c-neg:         var(--kar-red);
  --c-neg-soft:    var(--kar-red-soft);

  --c-inverse:        var(--kar-navy-800);
  --c-inverse-2:      var(--kar-navy-700);
  --c-inverse-text:   #f3f5fb;
  --c-inverse-text-2: rgba(228, 234, 248, 0.78);
  --c-inverse-text-3: rgba(196, 206, 232, 0.62);
  --c-inverse-rule:   rgba(196, 206, 232, 0.2);

  /* ── Type ────────────────────────────────────────────────────────────────── */
  --font-sans:    "Archivo", "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-display: "Archivo", "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono:    "IBM Plex Mono", "IBM Plex Sans", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --font-serif:   "Source Serif 4", "Source Serif Pro", Georgia, "Times New Roman", serif;

  --fs-2xs: 0.6875rem;  /* 11 */
  --fs-xs:  0.75rem;    /* 12 */
  --fs-sm:  0.875rem;   /* 14 */
  --fs-md:  1rem;       /* 16 */
  --fs-lg:  1.125rem;   /* 18 */
  --fs-xl:  1.3125rem;  /* 21 */
  --fs-h4:  1.125rem;
  --fs-h3:  clamp(1.25rem, 1.12rem + 0.5vw, 1.5rem);
  --fs-h2:  clamp(1.75rem, 1.4rem + 1.4vw, 2.5rem);
  --fs-h1:  clamp(2.125rem, 1.55rem + 2.4vw, 3.5rem);
  --fs-display: clamp(2.625rem, 1.6rem + 4.3vw, 5.25rem);

  --lh-tight: 1.04;
  --lh-snug:  1.2;
  --lh-body:  1.6;

  /* Archivo's width axis: display type runs slightly expanded, which is most of
     what makes it read as automotive rather than as a default UI sans. */
  --stretch-display: 112%;
  --stretch-ui: 100%;

  /* ── Space (4px base) ────────────────────────────────────────────────────── */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 24px;
  --sp-6: 32px;
  --sp-7: 48px;
  --sp-8: 64px;
  --sp-9: 96px;
  --sp-10: 128px;

  /* ── Shape & elevation ───────────────────────────────────────────────────── */
  --r-0: 0;
  --r-sm: 2px;
  --r-md: 4px;
  --r-lg: 6px;
  --r-pill: 999px;

  --shadow-hairline: 0 1px 0 var(--c-rule-soft);
  --shadow-raise: 0 1px 2px rgba(7, 13, 31, 0.06), 0 1px 1px rgba(7, 13, 31, 0.04);
  --shadow-overlay: 0 24px 48px -16px rgba(7, 13, 31, 0.28), 0 2px 6px rgba(7, 13, 31, 0.08);

  /* ── Motion ──────────────────────────────────────────────────────────────── */
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --dur-1: 120ms;
  --dur-2: 200ms;
  --dur-3: 360ms;

  /* ── Containers & rhythm ─────────────────────────────────────────────────
     content : marketing and narrative pages
     wide    : the header, footer and the widest workspaces
     app     : a tool's form and its report
     chat    : a conversation column
     ed      : the editorial hub
     read    : the article measure — the one width set in characters */
  --kar-gutter:  20px;
  --kar-content: 1180px;
  --kar-wide:    1180px;
  --kar-app:     980px;
  --kar-chat:    920px;
  --kar-ed:      1180px;
  --kar-read:    42rem;
  --kar-section: clamp(56px, 7vw, 104px);
  --kar-gap:     clamp(20px, 2.6vw, 32px);

  --header-h: 64px;

  /* ── Legacy aliases ──────────────────────────────────────────────────────
     Names the older page sheets and inline styles still read. They resolve to
     the system above so every one of those rules restyles with it; new code
     uses the semantic tokens directly. Note --accent is the functional navy,
     not the copper: the copper is kept for the few places that earn it. */
  --navy: var(--kar-navy-800);
  --navy-2: var(--kar-navy-700);
  --accent: var(--kar-navy-600);
  --mist: var(--kar-navy-100);
  --primary: var(--kar-navy-800);
  --primary-dark: var(--kar-navy-900);
  --primary-light: var(--kar-paper-2);
  --primary-ultra-light: var(--kar-paper-2);
  --primary-glow: rgba(15, 27, 61, 0.12);
  --success: var(--kar-green);
  --success-dark: var(--kar-green);
  --warning-bg: var(--kar-amber-soft);
  --warning-border: var(--kar-amber);
  --warning-text: #5e3a07;
  --border: var(--kar-rule);
  --border-subtle: var(--kar-rule-soft);
  --bg-light: var(--kar-paper);
  --bg-white: var(--kar-sheet);
  --text-main: var(--kar-ink);
  --text-muted: var(--kar-ink-3);
  --text-light: var(--kar-ink-4);
  --shadow-xs: none;
  --shadow-sm: none;
  --shadow-md: var(--shadow-overlay);
  --shadow-blue: none;
  --radius-sm: var(--r-sm);
  --radius-md: var(--r-md);
  --radius-lg: var(--r-md);
  --radius-xl: var(--r-lg);
  --radius-full: 50%;
  --header-grad: var(--kar-navy-900);
  --chat-bubble-in: var(--kar-paper-2);
  --transition: var(--dur-2) var(--ease);

  --bg: var(--kar-paper);
  --fg: var(--kar-ink);
  --card: var(--kar-sheet);
  --muted: var(--kar-ink-3);
  --gocar: #f26522;
  --signal: var(--kar-copper-lit);
  --signal-dim: rgba(201, 162, 75, 0.18);
  --glass-bg: rgba(241, 238, 230, 0.06);
  --glass-border: rgba(241, 238, 230, 0.16);
  --maxw: var(--kar-content);
  --radius: var(--r-md);
  --space-1: 4px; --space-2: 8px; --space-3: 12px; --space-4: 16px;
  --space-5: 24px; --space-6: 32px; --space-7: 48px; --space-8: 64px;
  --section-y: var(--kar-section);
  --gap-cards: var(--kar-gap);
  --shadow-1: none;
  --shadow-2: none;
  --shadow-3: var(--shadow-overlay);
  --dur: var(--dur-2);
  --footer-fg: var(--c-inverse-text);
  --footer-fg-strong: #fff;
  --footer-fg-muted: var(--c-inverse-text-2);
  --footer-fg-dim: var(--c-inverse-text-3);
  --footer-rule: var(--c-inverse-rule);
  --footer-surface: rgba(241, 238, 230, 0.06);
}

@media (min-width: 760px) {
  :root { --kar-gutter: 32px; }
}

@media (min-width: 1280px) {
  :root {
    --kar-gutter:  clamp(32px, 3vw, 48px);
    --kar-content: clamp(1180px, 88vw, 1480px);
    --kar-wide:    clamp(1180px, 88vw, 1480px);
    --kar-app:     clamp(980px, 80vw, 1320px);
    --kar-chat:    clamp(920px, 66vw, 1080px);
    --kar-ed:      clamp(1180px, 88vw, 1400px);
    --kar-read:    43rem;
    --kar-section: clamp(96px, 7vw, 136px);
    --kar-gap:     clamp(32px, 2.6vw, 44px);
  }
}

/* =============================================================================
   2. Base
   ============================================================================= */

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 16px);
}
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-sans);
  font-size: var(--fs-md);
  line-height: var(--lh-body);
  font-stretch: var(--stretch-ui);
  font-variant-numeric: lining-nums;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

img, svg, video { max-width: 100%; }
img { display: block; height: auto; }

a { color: inherit; text-decoration: none; }

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

::selection { background: var(--kar-ice); color: var(--kar-navy-800); }

:where(a, button, summary, input, select, textarea, [tabindex]):focus-visible {
  outline: 2px solid var(--c-focus);
  outline-offset: 2px;
  border-radius: var(--r-sm);
}

[hidden] { display: none !important; }

/* Icon slots that older scripts still render but no longer fill. */
.warning-icon:empty, .state-icon:empty, .u-icon:empty, .question-why-icon:empty { display: none; }

.visually-hidden, .sr-only, .kar-sr {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: var(--sp-4);
  z-index: 200;
  padding: 10px 16px;
  background: var(--c-brand);
  color: #fff;
  font-size: var(--fs-sm);
  font-weight: 600;
  border-radius: var(--r-md);
}
.skip-link:focus { top: var(--sp-3); }

/* =============================================================================
   3. Typography
   ============================================================================= */

.kar-display,
.kar-h1,
.kar-h2,
.kar-h3 {
  margin: 0;
  font-family: var(--font-display);
  font-stretch: var(--stretch-display);
  color: var(--c-text);
  text-wrap: balance;
}
.kar-display { font-size: var(--fs-display); line-height: var(--lh-tight); font-weight: 700; letter-spacing: -0.035em; }
.kar-h1      { font-size: var(--fs-h1); line-height: 1.06; font-weight: 700; letter-spacing: -0.03em; }
.kar-h2      { font-size: var(--fs-h2); line-height: 1.1; font-weight: 700; letter-spacing: -0.025em; }
.kar-h3      { font-size: var(--fs-h3); line-height: var(--lh-snug); font-weight: 650; letter-spacing: -0.015em; }
.kar-h4      { margin: 0; font-size: var(--fs-h4); line-height: 1.3; font-weight: 650; letter-spacing: -0.01em; }

/* A kicker names the section or category above a heading. Sentence case in the
   interface; the editorial pages set theirs in small capitals. */
.kar-kicker {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  margin: 0;
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0;
  color: var(--c-accent);
}
.kar-kicker::before {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--c-gold);
}
.kar-kicker--plain::before { display: none; }
.kar-kicker--inverse { color: var(--kar-copper-lit); }

.kar-lead {
  margin: 0;
  font-size: clamp(1.0625rem, 1rem + 0.35vw, 1.25rem);
  line-height: 1.55;
  color: var(--c-text-2);
  max-width: 40rem;
  text-wrap: pretty;
}

.kar-body { font-size: var(--fs-md); line-height: var(--lh-body); color: var(--c-text-2); }
.kar-meta { font-size: var(--fs-xs); line-height: 1.5; color: var(--c-text-3); }
.kar-mono { font-family: var(--font-mono); font-feature-settings: "zero" 0; letter-spacing: -0.01em; }
.kar-num  { font-family: var(--font-mono); font-variant-numeric: tabular-nums; letter-spacing: -0.02em; }

.kar-link {
  color: var(--c-text);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: var(--c-gold);
  text-decoration-thickness: 1.5px;
  text-underline-offset: 3px;
  transition: color var(--dur-1) var(--ease);
}
.kar-link:hover { color: var(--c-accent-ink); }

.kar-arrow-link {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-weight: 600;
  color: var(--c-text);
}
.kar-arrow-link .kar-icon { transition: transform var(--dur-2) var(--ease); }
.kar-arrow-link:hover .kar-icon { transform: translateX(3px); }
.kar-arrow-link:hover { color: var(--c-accent-ink); }

/* =============================================================================
   4. Layout
   ============================================================================= */

.kar-container {
  width: 100%;
  max-width: var(--kar-content);
  margin-inline: auto;
  padding-inline: var(--kar-gutter);
}
.kar-container--wide { max-width: var(--kar-wide); }
.kar-container--app  { max-width: var(--kar-app); }
.kar-container--read { max-width: calc(var(--kar-read) + 2 * var(--kar-gutter)); }

.kar-section { padding-block: var(--kar-section); }
.kar-section--tight { padding-block: calc(var(--kar-section) * 0.6); }
.kar-section--sunken { background: var(--c-sunken); }
.kar-section--inverse { background: var(--c-inverse); color: var(--c-inverse-text); }
.kar-section--rule { border-top: 1px solid var(--c-rule); }

/* A section head: kicker, title, optional lead on the left; an optional link
   on the right that sits on the title's baseline. */
.kar-section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--sp-4) var(--sp-6);
  margin-bottom: clamp(28px, 3.4vw, 48px);
}
.kar-section-head > :first-child { max-width: 44rem; display: grid; gap: var(--sp-3); }

.kar-rule { height: 1px; border: 0; margin: 0; background: var(--c-rule); }

/* =============================================================================
   5. Icons — one sprite, stroke-drawn, sized in em so they follow the text
   ============================================================================= */

.kar-icon {
  display: inline-block;
  width: 1.125em;
  height: 1.125em;
  flex: none;
  vertical-align: -0.2em;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.kar-icon--sm { width: 1em; height: 1em; }
.kar-icon--lg { width: 1.5em; height: 1.5em; }
.kar-icon--fill { fill: currentColor; stroke: none; }

/* =============================================================================
   6. Buttons
   ============================================================================= */

.kar-btn {
  --btn-bg: var(--c-brand);
  --btn-fg: #fff;
  --btn-bd: var(--c-brand);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 46px;
  padding: 0 20px;
  border: 1px solid var(--btn-bd);
  border-radius: var(--r-md);
  background: var(--btn-bg);
  color: var(--btn-fg);
  font-family: var(--font-sans);
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: 0;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color var(--dur-2) var(--ease), border-color var(--dur-2) var(--ease), color var(--dur-2) var(--ease);
  -webkit-tap-highlight-color: transparent;
}
.kar-btn:hover { --btn-bg: var(--c-brand-2); --btn-bd: var(--c-brand-2); }
.kar-btn:active { transform: translateY(1px); }
.kar-btn:disabled, .kar-btn[aria-disabled="true"] { opacity: 0.5; cursor: not-allowed; transform: none; }
.kar-btn .kar-icon { transition: transform var(--dur-2) var(--ease); }
.kar-btn:hover .kar-icon--go { transform: translateX(3px); }

.kar-btn--secondary { --btn-bg: transparent; --btn-fg: var(--c-text); --btn-bd: var(--c-rule-strong); }
.kar-btn--secondary:hover { --btn-bg: var(--c-text); --btn-fg: var(--c-bg); --btn-bd: var(--c-text); }

.kar-btn--quiet { --btn-bg: transparent; --btn-fg: var(--c-text); --btn-bd: var(--c-rule); }
.kar-btn--quiet:hover { --btn-bg: var(--c-surface); --btn-bd: var(--c-text-3); }

.kar-btn--accent { --btn-bg: var(--c-accent); --btn-bd: var(--c-accent); --btn-fg: #fff; }
.kar-btn--accent:hover { --btn-bg: var(--c-accent-ink); --btn-bd: var(--c-accent-ink); }

.kar-btn--inverse { --btn-bg: var(--c-inverse-text); --btn-fg: var(--kar-navy-900); --btn-bd: var(--c-inverse-text); }
.kar-btn--inverse:hover { --btn-bg: #fff; --btn-bd: #fff; }

.kar-btn--inverse-outline { --btn-bg: transparent; --btn-fg: var(--c-inverse-text); --btn-bd: rgba(241, 238, 230, 0.4); }
.kar-btn--inverse-outline:hover { --btn-bg: rgba(241, 238, 230, 0.08); --btn-bd: var(--c-inverse-text); }

.kar-btn--danger { --btn-bg: transparent; --btn-fg: var(--c-neg); --btn-bd: color-mix(in srgb, var(--c-neg) 45%, transparent); }
.kar-btn--danger:hover { --btn-bg: var(--c-neg); --btn-fg: #fff; --btn-bd: var(--c-neg); }

.kar-btn--text {
  --btn-bg: transparent; --btn-bd: transparent; --btn-fg: var(--c-text);
  min-height: 40px; padding: 0 4px;
  text-decoration: underline; text-decoration-color: var(--c-rule); text-underline-offset: 4px;
}
.kar-btn--text:hover { --btn-bg: transparent; --btn-bd: transparent; text-decoration-color: var(--c-accent); }

.kar-btn--sm { min-height: 36px; padding: 0 14px; font-size: var(--fs-sm); gap: 8px; }
.kar-btn--lg { min-height: 54px; padding: 0 28px; font-size: 1rem; }
.kar-btn--block { width: 100%; }

.kar-btn-row { display: flex; flex-wrap: wrap; align-items: center; gap: var(--sp-3); }

/* =============================================================================
   7. Fields
   ============================================================================= */

.kar-field { display: grid; gap: 6px; min-width: 0; }
.kar-label { font-size: var(--fs-sm); font-weight: 600; color: var(--c-text); }
.kar-hint  { font-size: var(--fs-xs); color: var(--c-text-3); margin: 0; }

.kar-input,
.kar-select,
.kar-textarea {
  width: 100%;
  min-height: 46px;
  padding: 10px 14px;
  border: 1px solid var(--c-rule);
  border-radius: var(--r-md);
  background: var(--c-surface);
  color: var(--c-text);
  font-size: var(--fs-md);
  line-height: 1.4;
  transition: border-color var(--dur-1) var(--ease), box-shadow var(--dur-1) var(--ease);
  -webkit-appearance: none;
  appearance: none;
}
.kar-textarea { min-height: 96px; resize: vertical; }
.kar-select {
  padding-right: 40px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23394154' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
}
.kar-input::placeholder, .kar-textarea::placeholder { color: var(--c-text-4); }
.kar-input:hover, .kar-select:hover, .kar-textarea:hover { border-color: var(--c-text-4); }
.kar-input:focus, .kar-select:focus, .kar-textarea:focus {
  outline: none;
  border-color: var(--c-brand);
  box-shadow: 0 0 0 3px rgba(15, 27, 61, 0.12);
}
.kar-input[aria-invalid="true"] { border-color: var(--c-neg); }

/* Segmented choice — used for binary and short enumerated answers. */
.kar-seg { display: inline-flex; border: 1px solid var(--c-rule); border-radius: var(--r-md); overflow: hidden; background: var(--c-surface); }
.kar-seg > button, .kar-seg > label {
  min-height: 40px; padding: 0 14px; border: 0; border-left: 1px solid var(--c-rule);
  background: transparent; font-size: var(--fs-sm); font-weight: 600; color: var(--c-text-2); cursor: pointer;
  display: inline-flex; align-items: center;
}
.kar-seg > :first-child { border-left: 0; }
.kar-seg > [aria-pressed="true"], .kar-seg > .is-active { background: var(--c-brand); color: #fff; }

/* =============================================================================
   8. Surfaces — used sparingly. Most sections are open layouts on the paper.
   ============================================================================= */

.kar-card {
  background: var(--c-surface);
  border: 1px solid var(--c-rule);
  border-radius: var(--r-lg);
}
.kar-card--pad { padding: clamp(18px, 2vw, 28px); }
.kar-card--flat { background: transparent; }
.kar-card--sunken { background: var(--c-sunken); border-color: transparent; }

.kar-panel-title { margin: 0 0 4px; font-size: var(--fs-lg); font-weight: 650; letter-spacing: -0.01em; }
.kar-panel-sub   { margin: 0 0 var(--sp-4); font-size: var(--fs-sm); color: var(--c-text-3); }

/* ── Vehicle card: the primary content object ─────────────────────────────── */
.kar-vehicle {
  display: flex;
  flex-direction: column;
  min-width: 0;
  background: var(--c-surface);
  border: 1px solid var(--c-rule);
  border-radius: var(--r-lg);
  overflow: hidden;
  color: var(--c-text);
  transition: border-color var(--dur-2) var(--ease);
}
a.kar-vehicle:hover { border-color: var(--c-text-3); }
.kar-vehicle__media {
  position: relative;
  aspect-ratio: 16 / 10;
  margin: 0;
  background: linear-gradient(180deg, #e9e6df 0%, #d9d5cb 100%);
  overflow: hidden;
}
.kar-vehicle__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 600ms var(--ease);
}
a.kar-vehicle:hover .kar-vehicle__media img { transform: scale(1.025); }
.kar-vehicle__role {
  position: absolute; left: 0; top: 14px;
  padding: 5px 10px 5px 12px;
  background: var(--c-brand); color: #fff;
  font-size: var(--fs-xs); font-weight: 600; letter-spacing: 0.01em;
}
.kar-vehicle__body { display: grid; gap: var(--sp-3); padding: 18px 20px 20px; }
.kar-vehicle__name { margin: 0; font-size: var(--fs-xl); line-height: 1.15; font-weight: 700; font-stretch: var(--stretch-display); letter-spacing: -0.02em; }
.kar-vehicle__trim { margin: 0; font-size: var(--fs-sm); color: var(--c-text-3); }
.kar-vehicle__price { display: flex; align-items: baseline; justify-content: space-between; gap: var(--sp-3); padding-top: var(--sp-3); border-top: 1px solid var(--c-rule-soft); }
.kar-vehicle__price b { font-family: var(--font-mono); font-size: var(--fs-lg); font-weight: 500; letter-spacing: -0.02em; }
.kar-vehicle__price span { font-size: var(--fs-xs); color: var(--c-text-3); }
.kar-vehicle__why { margin: 0; font-size: var(--fs-sm); line-height: 1.55; color: var(--c-text-2); }

/* ── Spec list: label / figure pairs, ruled ───────────────────────────────── */
.kar-specs { display: grid; grid-template-columns: repeat(auto-fit, minmax(120px, 1fr)); margin: 0; border-top: 1px solid var(--c-rule-soft); }
.kar-specs > div { padding: 10px 12px 10px 0; border-bottom: 1px solid var(--c-rule-soft); min-width: 0; }
.kar-specs dt { font-size: var(--fs-2xs); font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: var(--c-text-3); }
.kar-specs dd { margin: 2px 0 0; font-family: var(--font-mono); font-size: var(--fs-sm); color: var(--c-text); }

/* ── Metrics ──────────────────────────────────────────────────────────────── */
.kar-metrics { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); border-top: 1px solid var(--c-rule-strong); }
.kar-metric { padding: 16px 20px 18px 0; border-bottom: 1px solid var(--c-rule); min-width: 0; }
.kar-metric__label { margin: 0; font-size: var(--fs-xs); font-weight: 600; color: var(--c-text-3); }
.kar-metric__value { margin: 6px 0 0; font-family: var(--font-mono); font-size: clamp(1.5rem, 1.2rem + 1vw, 2rem); font-weight: 500; letter-spacing: -0.03em; line-height: 1.1; color: var(--c-text); }
.kar-metric__sub { margin: 4px 0 0; font-size: var(--fs-xs); color: var(--c-text-3); }

/* ── Tables ───────────────────────────────────────────────────────────────── */
.kar-table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.kar-table { width: 100%; border-collapse: collapse; font-size: var(--fs-sm); }
.kar-table caption { text-align: left; }
.kar-table th, .kar-table td { padding: 12px 16px 12px 0; text-align: left; vertical-align: top; border-bottom: 1px solid var(--c-rule-soft); }
.kar-table thead th { font-size: var(--fs-xs); font-weight: 600; color: var(--c-text-3); border-bottom: 1px solid var(--c-rule-strong); vertical-align: bottom; }
.kar-table tbody th { font-weight: 600; color: var(--c-text-2); }
.kar-table td.is-num, .kar-table .kar-num { font-family: var(--font-mono); }
.kar-table tr.is-group th { padding-top: 22px; font-size: var(--fs-xs); letter-spacing: 0.05em; text-transform: uppercase; color: var(--c-accent); border-bottom-color: var(--c-rule); }

/* ── Badges & chips ───────────────────────────────────────────────────────── */
.kar-badge {
  display: inline-flex; align-items: center; gap: 5px;
  padding: 2px 7px;
  border: 1px solid var(--c-rule);
  border-radius: var(--r-sm);
  background: transparent;
  color: var(--c-text-2);
  font-size: var(--fs-2xs);
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.5;
  white-space: nowrap;
}
.kar-badge--pos  { color: var(--c-pos);  border-color: color-mix(in srgb, var(--c-pos) 35%, transparent);  background: var(--c-pos-soft); }
.kar-badge--warn { color: var(--c-warn); border-color: color-mix(in srgb, var(--c-warn) 35%, transparent); background: var(--c-warn-soft); }
.kar-badge--neg  { color: var(--c-neg);  border-color: color-mix(in srgb, var(--c-neg) 35%, transparent);  background: var(--c-neg-soft); }
.kar-badge--brand { color: #fff; background: var(--c-brand); border-color: var(--c-brand); }

.kar-chip {
  display: inline-flex; align-items: center; gap: 6px;
  min-height: 36px; padding: 0 12px;
  border: 1px solid var(--c-rule);
  border-radius: var(--r-md);
  background: var(--c-surface);
  color: var(--c-text);
  font-size: var(--fs-sm); font-weight: 500;
  cursor: pointer;
  transition: border-color var(--dur-1) var(--ease), background-color var(--dur-1) var(--ease);
}
.kar-chip:hover { border-color: var(--c-text); }
.kar-chip[aria-pressed="true"], .kar-chip.is-active { background: var(--c-brand); border-color: var(--c-brand); color: #fff; }

/* ── Tabs ─────────────────────────────────────────────────────────────────── */
.kar-tabs { display: flex; gap: var(--sp-5); overflow-x: auto; border-bottom: 1px solid var(--c-rule); scrollbar-width: none; }
.kar-tabs::-webkit-scrollbar { display: none; }
.kar-tabs > a, .kar-tabs > button {
  flex: none; padding: 12px 0; margin-bottom: -1px;
  border: 0; border-bottom: 2px solid transparent; background: none;
  font-size: var(--fs-sm); font-weight: 600; color: var(--c-text-3); white-space: nowrap; cursor: pointer;
}
.kar-tabs > :hover { color: var(--c-text); }
.kar-tabs > [aria-current="page"], .kar-tabs > [aria-selected="true"] { color: var(--c-text); border-bottom-color: var(--c-gold); }

/* ── Breadcrumbs ──────────────────────────────────────────────────────────── */
.kar-crumbs { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin: 0; font-size: var(--fs-xs); color: var(--c-text-3); }
.kar-crumbs a { color: var(--c-text-2); font-weight: 500; }
.kar-crumbs a:hover { color: var(--c-text); text-decoration: underline; text-underline-offset: 3px; }
.kar-crumbs [aria-current] { color: var(--c-text-3); }

/* ── Notices ──────────────────────────────────────────────────────────────── */
.kar-notice {
  display: flex; gap: var(--sp-3); align-items: flex-start;
  padding: 12px 14px;
  border-left: 2px solid var(--c-text-3);
  background: var(--c-sunken);
  font-size: var(--fs-sm); line-height: 1.55; color: var(--c-text-2);
}
.kar-notice .kar-icon { margin-top: 2px; }
.kar-notice--info { border-left-color: var(--c-brand); background: var(--c-ice-soft); }
.kar-notice--warn { border-left-color: var(--c-warn); background: var(--c-warn-soft); color: #5e3a07; }
.kar-notice--neg  { border-left-color: var(--c-neg);  background: var(--c-neg-soft);  color: #6d2015; }
.kar-notice--pos  { border-left-color: var(--c-pos);  background: var(--c-pos-soft);  color: #134a30; }

/* ── Verdict: the conclusion a tool exists to produce ─────────────────────── */
.kar-verdict {
  position: relative;
  padding: clamp(20px, 2.4vw, 32px) clamp(20px, 2.6vw, 36px);
  background: var(--c-inverse);
  color: var(--c-inverse-text);
  border-radius: var(--r-lg);
}
.kar-verdict__label {
  display: flex; align-items: center; gap: var(--sp-2);
  margin: 0 0 var(--sp-3);
  font-size: var(--fs-xs); font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--kar-gold-lit);
}
.kar-verdict__title { margin: 0 0 var(--sp-2); font-size: clamp(1.25rem, 1.1rem + 0.7vw, 1.625rem); font-weight: 700; font-stretch: var(--stretch-display); letter-spacing: -0.02em; line-height: 1.2; color: #fff; }
.kar-verdict__body { margin: 0; font-size: var(--fs-md); line-height: 1.6; color: var(--c-inverse-text-2); max-width: 62ch; }

/* ── States ───────────────────────────────────────────────────────────────── */
.kar-empty { padding: clamp(32px, 5vw, 56px) var(--sp-5); text-align: center; border: 1px dashed var(--c-rule); border-radius: var(--r-lg); }
.kar-empty h3 { margin: 0 0 6px; font-size: var(--fs-lg); font-weight: 650; }
.kar-empty p { margin: 0 auto var(--sp-4); max-width: 46ch; font-size: var(--fs-sm); color: var(--c-text-3); }

.kar-loading { display: flex; align-items: center; gap: var(--sp-3); font-size: var(--fs-sm); color: var(--c-text-3); }
.kar-loading::before {
  content: ""; width: 16px; height: 16px; flex: none;
  border: 2px solid var(--c-rule); border-top-color: var(--c-brand); border-radius: 50%;
  animation: kar-spin 800ms linear infinite;
}
@keyframes kar-spin { to { transform: rotate(360deg); } }

.kar-skeleton { background: linear-gradient(90deg, var(--c-sunken) 25%, var(--kar-paper-3) 50%, var(--c-sunken) 75%); background-size: 300% 100%; animation: kar-shimmer 1.6s ease infinite; border-radius: var(--r-sm); }
@keyframes kar-shimmer { from { background-position: 100% 0; } to { background-position: 0 0; } }

/* ── Dialog / drawer surface ──────────────────────────────────────────────── */
.kar-dialog { background: var(--c-surface); border: 1px solid var(--c-rule); border-radius: var(--r-lg); box-shadow: var(--shadow-overlay); }
.kar-scrim { position: fixed; inset: 0; background: rgba(7, 13, 31, 0.44); }

/* ── Numbered list — rank, steps ──────────────────────────────────────────── */
.kar-steps { list-style: none; margin: 0; padding: 0; counter-reset: kar-step; }
.kar-steps > li { counter-increment: kar-step; display: grid; grid-template-columns: 48px minmax(0, 1fr); gap: var(--sp-4); padding: var(--sp-5) 0; border-top: 1px solid var(--c-rule); }
.kar-steps > li::before { content: counter(kar-step, decimal-leading-zero); font-family: var(--font-mono); font-size: var(--fs-sm); color: var(--c-accent); padding-top: 3px; }

/* ── Tool index — the research tools as a ruled list, grouped by decision ── */
.kar-toolindex { display: grid; gap: var(--sp-6); }
.kar-toolindex__group { border-top: 1px solid var(--c-rule-strong); }
.kar-toolindex__label { margin: 0 0 6px; padding-top: 12px; font-size: var(--fs-xs); font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--c-text-3); }
.kar-toolindex__item {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr) 20px;
  gap: 14px;
  align-items: start;
  padding: 16px 0;
  border-bottom: 1px solid var(--c-rule);
  color: var(--c-text);
}
.kar-toolindex__item > .kar-icon:first-child { width: 22px; height: 22px; margin-top: 1px; color: var(--c-text-3); }
.kar-toolindex__text { display: grid; gap: 2px; }
.kar-toolindex__name { font-size: var(--fs-md); font-weight: 650; letter-spacing: -0.01em; }
.kar-toolindex__desc { font-size: var(--fs-sm); line-height: 1.5; color: var(--c-text-3); }
.kar-toolindex__go { margin-top: 3px; color: var(--c-text-4); transition: transform var(--dur-2) var(--ease), color var(--dur-2) var(--ease); }
.kar-toolindex__item:hover .kar-toolindex__name { text-decoration: underline; text-underline-offset: 3px; }
.kar-toolindex__item:hover .kar-toolindex__go { color: var(--c-accent); transform: translateX(3px); }
@media (min-width: 900px) {
  .kar-toolindex { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 clamp(24px, 3vw, 48px); }
}

/* =============================================================================
   9. Site chrome — header
   ============================================================================= */

.kar-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(244, 241, 234, 0.92);
  -webkit-backdrop-filter: saturate(160%) blur(12px);
  backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--c-rule);
  transition: transform var(--dur-3) var(--ease);
}
.kar-header.is-hidden { transform: translateY(-100%); }

.kar-header__inner {
  display: flex;
  align-items: center;
  gap: var(--sp-5);
  height: var(--header-h);
  max-width: var(--kar-wide);
  margin-inline: auto;
  padding-inline: var(--kar-gutter);
}

.kar-brand { display: inline-flex; align-items: center; gap: 10px; flex: none; color: var(--c-text); }
.kar-brand__mark { width: 30px; height: 30px; object-fit: contain; }
.kar-brand__word { display: flex; align-items: baseline; gap: 7px; line-height: 1; }
.kar-brand__name { font-size: 1.3125rem; font-weight: 800; font-stretch: 118%; letter-spacing: -0.02em; }
.kar-brand__sub { font-size: var(--fs-xs); font-weight: 500; color: var(--c-text-3); letter-spacing: 0.01em; white-space: nowrap; }
@media (max-width: 420px) { .kar-brand__sub { display: none; } }

.kar-nav { display: none; align-items: stretch; gap: 2px; height: 100%; margin-left: var(--sp-3); }
.kar-nav > a,
.kar-nav__trigger {
  position: relative;
  display: inline-flex; align-items: center; gap: 6px;
  height: 100%;
  padding: 0 12px;
  border: 0; background: none;
  font-size: 0.9375rem; font-weight: 500; color: var(--c-text-2);
  white-space: nowrap; cursor: pointer;
  transition: color var(--dur-1) var(--ease);
}
.kar-nav > a::after,
.kar-nav__trigger::after {
  content: ""; position: absolute; left: 12px; right: 12px; bottom: -1px; height: 2px;
  background: var(--c-gold); transform: scaleX(0); transform-origin: left;
  transition: transform var(--dur-2) var(--ease);
}
.kar-nav > a:hover, .kar-nav__trigger:hover, .kar-nav__trigger[aria-expanded="true"] { color: var(--c-text); }
.kar-nav > a[aria-current="page"], .kar-nav__group.is-current > .kar-nav__trigger { color: var(--c-text); font-weight: 600; }
.kar-nav > a[aria-current="page"]::after, .kar-nav__group.is-current > .kar-nav__trigger::after { transform: scaleX(1); }
.kar-nav__trigger .kar-icon { width: 14px; height: 14px; transition: transform var(--dur-2) var(--ease); }
.kar-nav__trigger[aria-expanded="true"] .kar-icon { transform: rotate(180deg); }

.kar-nav__group { position: relative; display: flex; }
.kar-nav__menu {
  position: absolute; top: calc(100% + 1px); left: 0;
  display: none;
  width: 380px;
  padding: 8px;
  background: var(--c-surface);
  border: 1px solid var(--c-rule);
  border-top: 0;
  border-radius: 0 0 var(--r-lg) var(--r-lg);
  box-shadow: var(--shadow-overlay);
}
.kar-nav__menu.is-open { display: grid; }
.kar-nav__menu a {
  display: grid; grid-template-columns: 22px minmax(0, 1fr); gap: 2px 12px; align-items: start;
  padding: 10px 12px; border-radius: var(--r-md); color: var(--c-text);
}
.kar-nav__menu a:hover, .kar-nav__menu a[aria-current="page"] { background: var(--c-ice-soft); }
.kar-nav__menu a .kar-icon { grid-row: span 2; margin-top: 2px; color: var(--c-text-3); width: 20px; height: 20px; }
.kar-nav__menu strong { font-size: var(--fs-sm); font-weight: 600; }
.kar-nav__menu span { font-size: var(--fs-xs); line-height: 1.45; color: var(--c-text-3); }
.kar-nav__menu .kar-nav__all { display: flex; justify-content: space-between; margin-top: 4px; padding-top: 12px; border-top: 1px solid var(--c-rule-soft); border-radius: 0; font-size: var(--fs-sm); font-weight: 600; }
.kar-nav__menu .kar-nav__all:hover { background: none; color: var(--c-accent-ink); }

.kar-header__actions { display: flex; align-items: center; gap: var(--sp-2); margin-left: auto; }

.kar-header__ask {
  display: none;
  align-items: center; gap: 8px;
  min-height: 38px; padding: 0 14px;
  border: 1px solid var(--c-brand); border-radius: var(--r-md);
  background: var(--c-brand);
  font-size: var(--fs-sm); font-weight: 600; color: #fff;
  transition: background-color var(--dur-1) var(--ease), border-color var(--dur-1) var(--ease);
}
.kar-header__ask:hover { background: var(--c-brand-2); border-color: var(--c-brand-2); }
.kar-header__ask[aria-current="page"] { box-shadow: inset 0 -3px 0 var(--c-gold); }

.kar-header__signin {
  display: none; align-items: center;
  min-height: 38px; padding: 0 10px;
  font-size: var(--fs-sm); font-weight: 600; color: var(--c-text-2);
}
.kar-header__signin:hover { color: var(--c-text); }

/* Language: two letters, one underline. Not a flag pill. */
.kar-lang-toggle {
  display: inline-flex; align-items: center; gap: 2px;
  min-height: 38px; padding: 0 6px;
  border: 0; background: none; cursor: pointer;
  font-family: var(--font-mono); font-size: var(--fs-xs); font-weight: 500; letter-spacing: 0.02em;
  color: var(--c-text-3);
}
.kar-lang-toggle .lang-segment { padding: 3px 4px; border-bottom: 1.5px solid transparent; line-height: 1; }
.kar-lang-toggle .lang-segment.active { color: var(--c-text); border-bottom-color: var(--c-gold); }
.kar-lang-toggle .lang-sep { color: var(--c-rule); }
.kar-lang-toggle:hover { color: var(--c-text-2); }
.kar-lang-toggle .lang-flag { display: none; }

/* Account menu */
.kar-account { position: relative; display: none; }
.kar-account__toggle {
  display: inline-flex; align-items: center; gap: 8px;
  min-height: 38px; padding: 0 10px;
  border: 1px solid transparent; border-radius: var(--r-md); background: none; cursor: pointer;
  font-size: var(--fs-sm); font-weight: 600; color: var(--c-text-2);
}
.kar-account__toggle:hover, .kar-account__toggle[aria-expanded="true"] { color: var(--c-text); border-color: var(--c-rule); }
.kar-account__menu {
  position: absolute; right: 0; top: calc(100% + 10px);
  display: none; min-width: 230px; padding: 6px;
  background: var(--c-surface); border: 1px solid var(--c-rule); border-radius: var(--r-lg);
  box-shadow: var(--shadow-overlay);
}
.kar-account__menu.open { display: grid; }
.kar-account__menu a, .kar-account__menu button {
  display: flex; align-items: center; gap: 10px;
  width: 100%; padding: 9px 10px; border: 0; border-radius: var(--r-md); background: none; cursor: pointer;
  font-size: var(--fs-sm); font-weight: 500; color: var(--c-text); text-align: left;
}
.kar-account__menu a:hover, .kar-account__menu button:hover, .kar-account__menu a[aria-current="page"] { background: var(--c-sunken); }
.kar-account__menu .kar-icon { color: var(--c-text-3); }
.kar-account__menu hr { margin: 6px 4px; border: 0; border-top: 1px solid var(--c-rule-soft); }
.kar-account__menu .is-danger { color: var(--c-neg); }

.kar-signed-in .kar-account { display: block; }
.kar-signed-in .kar-header__signin { display: none !important; }

/* Hamburger */
.kar-menu-btn {
  display: inline-grid; place-items: center;
  width: 42px; height: 42px; margin-right: -8px;
  border: 0; background: none; cursor: pointer; color: var(--c-text);
}
.kar-menu-btn .kar-icon { width: 24px; height: 24px; }

@media (min-width: 640px) {
  .kar-header__signin { display: inline-flex; }
}
@media (min-width: 1080px) {
  .kar-nav { display: flex; }
  .kar-header__ask { display: inline-flex; }
  .kar-menu-btn { display: none; }
}
@media (max-width: 1079px) {
  .kar-signed-in .kar-account { display: none; }
}

/* Drawer (mobile) — a sibling of the header, so the header's transform never
   becomes the containing block for it. */
.nav-scrim {
  position: fixed; inset: 0; z-index: 140;
  background: rgba(7, 13, 31, 0.44);
  opacity: 0; visibility: hidden;
  transition: opacity var(--dur-2) var(--ease), visibility var(--dur-2);
}
.nav-scrim.open { opacity: 1; visibility: visible; }

.kar-drawer {
  position: fixed; top: 0; right: 0; bottom: 0; z-index: 150;
  display: flex; flex-direction: column;
  width: min(420px, 100%);
  background: var(--c-bg);
  transform: translateX(100%);
  visibility: hidden;
  transition: transform var(--dur-3) var(--ease), visibility var(--dur-3);
  overflow-y: auto;
  overscroll-behavior: contain;
}
.kar-drawer.open { transform: none; visibility: visible; }
.kar-drawer__head { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); padding: 0 var(--kar-gutter); border-bottom: 1px solid var(--c-rule); flex: none; }
.kar-drawer__close { display: grid; place-items: center; width: 42px; height: 42px; margin-right: -8px; border: 0; background: none; cursor: pointer; color: var(--c-text); }
.kar-drawer__close .kar-icon { width: 24px; height: 24px; }
.kar-drawer__body { display: grid; gap: var(--sp-5); padding: var(--sp-5) var(--kar-gutter) var(--sp-7); }
.kar-drawer__primary { display: grid; }
.kar-drawer__primary a {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 0; border-bottom: 1px solid var(--c-rule);
  font-size: 1.375rem; font-weight: 650; font-stretch: var(--stretch-display); letter-spacing: -0.02em; color: var(--c-text);
}
.kar-drawer__primary a .kar-icon { color: var(--c-text-4); }
.kar-drawer__primary a[aria-current="page"] { color: var(--c-accent-ink); }
.kar-drawer__label { margin: 0 0 4px; font-size: var(--fs-xs); font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--c-text-3); }
.kar-drawer__list { display: grid; }
.kar-drawer__list a, .kar-drawer__list button {
  display: flex; align-items: center; gap: 12px;
  min-height: 46px; padding: 0; border: 0; background: none; cursor: pointer; text-align: left;
  font-size: var(--fs-md); font-weight: 500; color: var(--c-text);
}
.kar-drawer__list .kar-icon { color: var(--c-text-3); }
.kar-drawer__foot { display: flex; align-items: center; justify-content: space-between; gap: var(--sp-3); padding-top: var(--sp-4); border-top: 1px solid var(--c-rule); }
.kar-drawer [data-member] { display: none; }
.kar-signed-in .kar-drawer [data-member] { display: grid; }
.kar-signed-in .kar-drawer [data-guest] { display: none; }

html.kar-nav-open { overflow: hidden; }

/* =============================================================================
   10. Site chrome — footer
   ============================================================================= */

.kar-footer {
  margin-top: auto;
  border-top: 3px solid var(--c-gold);
  background: var(--c-inverse);
  color: var(--c-inverse-text-2);
  font-size: var(--fs-sm);
}
.kar-footer a { color: var(--c-inverse-text-2); transition: color var(--dur-1) var(--ease); }
.kar-footer a:hover { color: #fff; }
.kar-footer__inner {
  display: grid;
  gap: var(--sp-6) var(--sp-5);
  grid-template-columns: repeat(2, minmax(0, 1fr));
  max-width: var(--kar-wide);
  margin-inline: auto;
  padding: clamp(48px, 6vw, 80px) var(--kar-gutter) var(--sp-6);
}
.kar-footer__brand { grid-column: 1 / -1; display: grid; gap: var(--sp-4); align-content: start; max-width: 26rem; }
.kar-footer__brand .kar-brand { color: #fff; }
.kar-footer__brand .kar-brand__mark { filter: brightness(0) invert(1); opacity: 0.92; }
.kar-footer__brand .kar-brand__sub { color: var(--c-inverse-text-3); }
.kar-footer__statement { margin: 0; line-height: 1.6; }
.kar-footer__col { display: grid; gap: 10px; align-content: start; }
.kar-footer__title { margin: 0 0 4px; font-size: var(--fs-xs); font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--c-inverse-text-3); }
.kar-footer__contact { display: grid; gap: 2px; }
.kar-footer__contact small { font-size: var(--fs-xs); color: var(--c-inverse-text-3); }
.kar-footer__social { display: flex; gap: var(--sp-2); margin: var(--sp-2) 0 0; padding: 0; list-style: none; }
.kar-footer__social a { display: grid; place-items: center; width: 36px; height: 36px; border: 1px solid var(--c-inverse-rule); border-radius: var(--r-md); }
.kar-footer__social a:hover { border-color: var(--c-inverse-text-2); }
.kar-footer__social svg { width: 16px; height: 16px; fill: currentColor; }
.kar-footer__bar {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--sp-3) var(--sp-5);
  max-width: var(--kar-wide);
  margin-inline: auto;
  padding: var(--sp-5) var(--kar-gutter) var(--sp-6);
  border-top: 1px solid var(--c-inverse-rule);
  font-size: var(--fs-xs);
  color: var(--c-inverse-text-3);
}
.kar-footer__bar p { margin: 0; }
.kar-footer__credits { display: flex; flex-wrap: wrap; gap: 4px 16px; }
.kar-footer__credits a { color: var(--c-inverse-text-2); }

@media (min-width: 760px) {
  .kar-footer__inner { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}
@media (min-width: 1080px) {
  .kar-footer__inner { grid-template-columns: minmax(0, 1.6fr) repeat(4, minmax(0, 1fr)); }
  .kar-footer__brand { grid-column: auto; }
}

/* A page built as a column (the app pages) pushes the footer to the bottom. */
.page-wrapper { display: flex; flex-direction: column; min-height: 100vh; min-height: 100dvh; }

/* =============================================================================
   11. Page heads — the first block under the header on every tool page
   ============================================================================= */

.kar-pagehead { padding: clamp(28px, 4vw, 56px) 0 clamp(20px, 2.6vw, 32px); }
.kar-pagehead__inner { display: grid; gap: var(--sp-3); max-width: 46rem; }
.kar-pagehead .kar-h1 { font-size: clamp(2rem, 1.5rem + 2vw, 3rem); }
.kar-pagehead .kar-lead { font-size: var(--fs-lg); }

/* =============================================================================
   12. Motion preferences
   ============================================================================= */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
    scroll-behavior: auto !important;
  }
}