/* ============================================================
   LE200 CONFIGURATOR — workshop / engineering vocabulary
   ============================================================ */

:root {
  /* Field — toggleable via Tweaks */
  --field: #f6f1e4;          /* warm paper / chiffon */
  --field-2: #efe8d4;        /* slightly deeper paper */
  --field-line: #c8bfa6;     /* dimension-line warm */
  --ink: #0e353d;            /* prussian blue — primary text */
  --ink-2: #1d6877;          /* midnight green — secondary text */
  --ink-3: #5b6f74;          /* muted */
  --ink-4: #97a3a6;          /* tertiary / dimension callouts */
  --accent: #46c5e3;         /* blue lagoon — Laguna cyan stripe */
  --accent-deep: #1c93b0;
  --warn: #f89c4a;           /* sunset orange — warnings only */
  --error: #c44b3a;
  --rule: #0e353d;

  --fg-on-dark: #f6f1e4;

  --font-display: "Bakbak One", "Arial Narrow", sans-serif;
  --font-body: "Manrope", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
  --font-script: "Square Peg", "Caveat", cursive;
}

[data-theme="dark"] {
  --field: #0e353d;
  --field-2: #0a2730;
  --field-line: #1d4750;
  --ink: #f6f1e4;
  --ink-2: #cfd9d6;
  --ink-3: #98aaae;
  --ink-4: #5b7780;
  --rule: #f6f1e4;
}

[data-theme="mixed"] {
  /* mixed: field stays cream, but sticky panels turn teal */
  --field: #f6f1e4;
  --field-2: #efe8d4;
  --field-line: #c8bfa6;
  --ink: #0e353d;
  --rule: #0e353d;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--field);
  color: var(--ink);
  font-family: var(--font-body);
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Subtle blueprint grid behind everything */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background-image:
    linear-gradient(to right, color-mix(in oklab, var(--ink), transparent 96%) 1px, transparent 1px),
    linear-gradient(to bottom, color-mix(in oklab, var(--ink), transparent 96%) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 40%, #000 50%, transparent 100%);
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; }
img { display: block; max-width: 100%; }

/* Typography ------------------------------------------------ */

.display { font-family: var(--font-display); font-weight: 400; letter-spacing: -0.01em; line-height: 0.92; }
.script  { font-family: var(--font-script); font-weight: 400; color: var(--accent-deep); }
.mono    { font-family: var(--font-mono); font-feature-settings: "tnum", "zero"; }
.tabular { font-variant-numeric: tabular-nums; }
.upper   { text-transform: uppercase; letter-spacing: 0.08em; font-weight: 600; }

/* Reusable layout primitives ------------------------------- */

.page {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 40px;
}

@media (max-width: 900px) {
  .container { padding: 0 24px; }
}

.rule { border-top: 1px solid var(--rule); }
.rule-soft { border-top: 1px solid color-mix(in oklab, var(--ink), transparent 80%); }

/* Section number tag like [01], [02] */
.sec-tag {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--ink-3);
  text-transform: uppercase;
}

/* Crosshair registration marks (in corners of cards) */
.cross-tl, .cross-tr, .cross-bl, .cross-br {
  position: absolute;
  width: 10px;
  height: 10px;
  pointer-events: none;
}
.cross-tl::before, .cross-tl::after,
.cross-tr::before, .cross-tr::after,
.cross-bl::before, .cross-bl::after,
.cross-br::before, .cross-br::after {
  content: "";
  position: absolute;
  background: var(--ink);
}
.cross-tl::before, .cross-tr::before, .cross-bl::before, .cross-br::before {
  width: 10px; height: 1px; top: 50%;
}
.cross-tl::after, .cross-tr::after, .cross-bl::after, .cross-br::after {
  height: 10px; width: 1px; left: 50%;
}
.cross-tl { top: -1px; left: -1px; }
.cross-tr { top: -1px; right: -1px; }
.cross-bl { bottom: -1px; left: -1px; }
.cross-br { bottom: -1px; right: -1px; }

/* Buttons --------------------------------------------------- */

.btn {
  appearance: none;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  padding: 14px 22px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: background 0.15s, color 0.15s, transform 0.05s;
  position: relative;
}
.btn:hover { background: var(--ink); color: var(--field); }
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--ink);
  color: var(--field);
}
.btn-primary:hover {
  background: var(--accent-deep);
  border-color: var(--accent-deep);
  color: #fff;
}

.btn-accent {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--ink);
}
.btn-accent:hover {
  background: var(--accent-deep);
  border-color: var(--accent-deep);
  color: #fff;
}

.btn-ghost {
  border-color: color-mix(in oklab, var(--ink), transparent 60%);
}

.btn-arrow::after {
  content: "→";
  font-family: var(--font-body);
  font-weight: 400;
}

/* Header / nav --------------------------------------------- */

.topnav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in oklab, var(--field), transparent 4%);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--rule);
}
.topnav-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 16px 40px;
}
.brand {
  font-family: var(--font-display);
  font-size: 22px;
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.brand .sig {
  font-family: var(--font-script);
  color: var(--accent);
  font-size: 28px;
  line-height: 0.6;
}
.topnav .crumbs {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--ink-3);
}
.topnav .crumb { padding: 4px 8px; border: 1px solid transparent; }
.topnav .crumb.active { border-color: var(--ink); color: var(--ink); }
.topnav .crumb.done { color: var(--ink-2); }
.topnav .crumb.done::before { content: "✓ "; color: var(--accent-deep); }

/* Stepper between crumbs */
.crumb-sep {
  width: 16px; height: 1px;
  background: color-mix(in oklab, var(--ink), transparent 70%);
}

/* Dimension lines (technical-drawing style) ---------------- */

.dim {
  position: relative;
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--ink-3);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  white-space: nowrap;
}
.dim-h, .dim-v {
  position: absolute;
  color: var(--ink-3);
}
.dim-h {
  height: 1px;
  background: var(--field-line);
}
.dim-h::before, .dim-h::after {
  content: ""; position: absolute; top: -3px; width: 1px; height: 7px;
  background: var(--ink);
}
.dim-h::before { left: 0; }
.dim-h::after { right: 0; }
.dim-h span {
  position: absolute;
  top: -16px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--field);
  padding: 0 6px;
}

.dim-v {
  width: 1px;
  background: var(--field-line);
}
.dim-v::before, .dim-v::after {
  content: ""; position: absolute; left: -3px; height: 1px; width: 7px;
  background: var(--ink);
}
.dim-v::before { top: 0; }
.dim-v::after { bottom: 0; }
.dim-v span {
  position: absolute;
  left: 8px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--field);
  padding: 0 6px;
}

/* Spec table */
.spec-table {
  width: 100%;
  font-family: var(--font-mono);
  font-size: 12px;
  border-collapse: collapse;
}
.spec-table td, .spec-table th {
  padding: 10px 0;
  border-bottom: 1px dashed color-mix(in oklab, var(--ink), transparent 75%);
  text-align: left;
  vertical-align: top;
}
.spec-table .k {
  color: var(--ink-3);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  width: 42%;
}
.spec-table .v { color: var(--ink); font-variant-numeric: tabular-nums; }

/* Form controls -------------------------------------------- */

.choice {
  position: relative;
  padding: 16px;
  border: 1px solid color-mix(in oklab, var(--ink), transparent 75%);
  background: var(--field);
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
  text-align: left;
  display: block;
  width: 100%;
  font-family: inherit;
  color: inherit;
}
.choice:hover { border-color: var(--ink); }
.choice[aria-checked="true"], .choice.active {
  border-color: var(--ink);
  background: color-mix(in oklab, var(--accent), transparent 88%);
}
.choice .label {
  font-weight: 600;
  font-size: 15px;
  display: flex; align-items: center; gap: 8px;
}
.choice .sub {
  font-size: 12px;
  color: var(--ink-3);
  margin-top: 4px;
  line-height: 1.4;
}
.choice .delta {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-2);
  position: absolute;
  top: 16px; right: 16px;
}
.choice[aria-checked="true"] .stripe {
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--accent);
}

/* Vertical cyan accent (echo of the kiln door stripe) ------ */

.cyan-rule {
  display: inline-block;
  width: 3px;
  background: var(--accent);
  align-self: stretch;
  flex: 0 0 auto;
}

/* Big numerals (the chunky Bakbak One numbers) ------------- */

.big-num {
  font-family: var(--font-display);
  font-size: clamp(64px, 12vw, 200px);
  line-height: 0.85;
  letter-spacing: -0.02em;
}

/* Footer */
.footer {
  margin-top: 80px;
  border-top: 1px solid var(--rule);
  padding: 40px 0 60px;
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 32px;
}

/* Helpers */
.flex { display: flex; }
.col { display: flex; flex-direction: column; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.gap-6 { gap: 24px; }
.gap-8 { gap: 32px; }
.items-center { align-items: center; }
.items-baseline { align-items: baseline; }
.items-stretch { align-items: stretch; }
.between { justify-content: space-between; }
.grow { flex: 1; }

.muted { color: var(--ink-3); }
.deep { color: var(--ink-2); }
.accent-text { color: var(--accent-deep); }

/* Inline measurement chip */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-2);
  padding: 4px 8px;
  border: 1px solid color-mix(in oklab, var(--ink), transparent 70%);
}
.chip.warn { color: var(--warn); border-color: var(--warn); }
.chip.ok { color: var(--accent-deep); border-color: var(--accent-deep); }

/* Scrollbar restraint */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb {
  background: color-mix(in oklab, var(--ink), transparent 80%);
}
::-webkit-scrollbar-track { background: transparent; }