/* VINC Lab design tokens. Shared by the landing page (index.html) and the LMS (app.html).
   Same family as the VINC site: cream paper, dark ink, amber brand, and one colour per form of work. */
:root {
  --paper: #F7F0E3;
  --paper-2: #EFE2CC;
  --card: #FFF9EF;
  --card-2: #FBF3E4;
  --ink: #2B1A10;
  --ink-2: #5E4634;
  --muted: #6E5442;
  --line: #DCCBAE;
  --grid: rgba(43, 26, 16, 0.06);
  --amber: #D98A1C;
  --amber-ink: #9A5B0A;
  --amber-soft: #F6DFB5;
  --rust: #C2502A;
  --teal: #1F6F66;
  --teal-2: #2A8378;
  --teal-soft: #CFE6E1;
  --plum: #8C3557;
  --olive: #4C7424;
  --olive-soft: #DCE8CC;
  --rust-soft: #F3D3C5;
  --plum-soft: #EED0DC;
  --on-part: #FFF7EA;
  --band: #2B1A10;
  --on-band: #F7F0E3;
  --band-accent: #F0B44C;
  --focus: #1F6F66;
  --ok: #3E7B2A;
  --warn: #B26A00;
  --bad: #B23A2A;
  --shadow: 0 14px 34px -18px rgba(43, 26, 16, 0.45);
  --shadow-sm: 0 6px 16px -10px rgba(43, 26, 16, 0.4);
  --glow: rgba(217, 138, 28, 0.16);
  --radius: 22px;
  --radius-sm: 14px;
  --wrap: 1180px;
  --display: "Lora", Georgia, "Times New Roman", serif;
  --body: "DM Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --mono: "DM Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --t-label: 0.8125rem;
  --t-small: 0.9375rem;
  --t-body: 1.0625rem;
  --t-lead: 1.25rem;
  --logo-light: inline-block;
  --logo-dark: none;
  --brand: var(--amber);
  --brand-ink: var(--amber-ink);
  --brand-soft: var(--amber-soft);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --paper: #1B130D;
    --paper-2: #231910;
    --card: #2B1F16;
    --card-2: #33251A;
    --ink: #F4EADB;
    --ink-2: #DCCBB4;
    --muted: #BBA58B;
    --line: #47352A;
    --grid: rgba(244, 234, 219, 0.05);
    --amber: #E09A35;
    --amber-ink: #F0B44C;
    --amber-soft: #4A3216;
    --rust: #E0714A;
    --teal: #3FB3A4;
    --teal-2: #4FC1B1;
    --teal-soft: #193D38;
    --plum: #D06A93;
    --olive: #8DBB5A;
    --olive-soft: #2C3A1C;
    --rust-soft: #45261A;
    --plum-soft: #3E2030;
    --band: #F4EADB;
    --on-band: #2B1A10;
    --band-accent: #9A5B0A;
    --focus: #F0B44C;
    --ok: #8DBB5A;
    --warn: #F0B44C;
    --bad: #E57A66;
    --shadow: 0 14px 34px -16px rgba(0, 0, 0, 0.7);
    --shadow-sm: 0 6px 16px -10px rgba(0, 0, 0, 0.7);
    --glow: rgba(240, 180, 76, 0.12);
    --logo-light: none;
    --logo-dark: inline-block;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --paper: #1B130D; --paper-2: #231910; --card: #2B1F16; --card-2: #33251A;
  --ink: #F4EADB; --ink-2: #DCCBB4; --muted: #BBA58B; --line: #47352A; --grid: rgba(244, 234, 219, 0.05);
  --amber: #E09A35; --amber-ink: #F0B44C; --amber-soft: #4A3216; --rust: #E0714A;
  --teal: #3FB3A4; --teal-2: #4FC1B1; --teal-soft: #193D38; --plum: #D06A93; --olive: #8DBB5A;
  --olive-soft: #2C3A1C; --rust-soft: #45261A; --plum-soft: #3E2030;
  --band: #F4EADB; --on-band: #2B1A10; --band-accent: #9A5B0A; --focus: #F0B44C;
  --ok: #8DBB5A; --warn: #F0B44C; --bad: #E57A66;
  --shadow: 0 14px 34px -16px rgba(0, 0, 0, 0.7); --shadow-sm: 0 6px 16px -10px rgba(0, 0, 0, 0.7);
  --glow: rgba(240, 180, 76, 0.12); --logo-light: none; --logo-dark: inline-block;
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 var(--t-body)/1.6 var(--body);
  -webkit-font-smoothing: antialiased;
}
img, svg { max-width: 100%; }
a { color: inherit; }
button, input, select, textarea { font: inherit; color: inherit; }
:focus-visible { outline: 3px solid var(--focus); outline-offset: 3px; border-radius: 8px; }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.logo-l { display: var(--logo-light); }
.logo-d { display: var(--logo-dark); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5em;
  min-height: 46px; padding: 0.7em 1.25em; border-radius: 999px;
  border: 2px solid transparent; font-weight: 700; font-size: 1rem; text-decoration: none;
  cursor: pointer; transition: transform .2s ease, background-color .2s ease, box-shadow .2s ease, border-color .2s;
  white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; }
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--ink); color: var(--paper); box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--teal); color: #fff; }
.btn-amber { background: var(--amber); color: #2B1A10; }
.btn-amber:hover { background: var(--band-accent); }
.btn-ghost { border-color: var(--ink); background: transparent; color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--paper); }
.btn-sm { min-height: 36px; padding: 0.4em 0.9em; font-size: var(--t-small); }

.label {
  font: 500 var(--t-label)/1.3 var(--mono);
  letter-spacing: 0.06em; text-transform: uppercase; color: var(--amber-ink); margin: 0 0 0.75rem;
}
.muted { color: var(--muted); }
.chip {
  display: inline-flex; align-items: center; gap: 0.4em; padding: 0.25em 0.7em; border-radius: 999px;
  font: 500 var(--t-label)/1.4 var(--mono); background: var(--paper-2); color: var(--ink-2);
  border: 1px solid var(--line);
}
.f-life { --f: var(--olive); --f-soft: var(--olive-soft); }
.f-machines { --f: var(--rust); --f-soft: var(--rust-soft); }
.f-services { --f: var(--plum); --f-soft: var(--plum-soft); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}