/* BRIEF. — Design Tokens */

:root {
  /* Type */
  --serif: "Source Serif 4", "Source Serif Pro", Georgia, "Times New Roman", serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  --mono: "JetBrains Mono", "IBM Plex Mono", "Courier New", monospace;

  /* Paper + Ink (default: Tinte) */
  --paper: #f4efe4;          /* warm cream, newsprint */
  --paper-2: #ebe5d6;        /* deeper cream for cards */
  --paper-edge: #d9d1bd;     /* hairline rule */
  --ink: #1a1a1a;            /* near-black */
  --ink-2: #3b3a36;          /* body text */
  --ink-3: #6b6862;          /* meta text */
  --ink-4: #8f8b83;          /* faint */
  --accent: #1a3a6b;         /* tinte blue */
  --accent-ink: #f4efe4;     /* text on accent */

  /* Layout */
  --rule: 1px solid var(--ink);
  --rule-hair: 1px solid var(--paper-edge);
  --rule-thick: 2px solid var(--ink);
  --rule-double: 3px double var(--ink);

  /* Spacing */
  --gutter: 24px;
  --col: minmax(0, 1fr);
}

/* Farbwelt: Postrot */
[data-palette="postrot"] {
  --paper: #f4efe4;
  --paper-2: #ede7d6;
  --paper-edge: #d6cdb8;
  --ink: #141414;
  --ink-2: #322f2a;
  --ink-3: #6a665c;
  --ink-4: #8f8a7e;
  --accent: #a4241a;
  --accent-ink: #f4efe4;
}

/* Farbwelt: Monochrom */
[data-palette="mono"] {
  --paper: #ffffff;
  --paper-2: #f5f5f5;
  --paper-edge: #d8d8d8;
  --ink: #0a0a0a;
  --ink-2: #2a2a2a;
  --ink-3: #6a6a6a;
  --ink-4: #9a9a9a;
  --accent: #0a0a0a;
  --accent-ink: #ffffff;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--serif);
  background: var(--paper);
  color: var(--ink);
  font-feature-settings: "liga", "kern", "onum";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* Paper texture — very subtle */
.paper-tex {
  background-color: var(--paper);
  background-image:
    radial-gradient(rgba(0,0,0,0.018) 1px, transparent 1px),
    radial-gradient(rgba(0,0,0,0.012) 1px, transparent 1px);
  background-size: 3px 3px, 7px 7px;
  background-position: 0 0, 1px 2px;
}

/* Primitives */
.rule { height: 1px; background: var(--ink); border: 0; margin: 0; }
.rule-hair { height: 1px; background: var(--paper-edge); border: 0; margin: 0; }
.rule-thick { height: 2px; background: var(--ink); border: 0; margin: 0; }
.rule-double {
  height: 7px; border: 0; margin: 0;
  border-top: 1px solid var(--ink);
  border-bottom: 1px solid var(--ink);
}

.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-weight: 500;
}

.meta {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--ink-3);
}

.kicker {
  font-family: var(--sans);
  font-size: 12px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--ink);
}

/* Buttons */
.btn {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.01em;
  padding: 14px 22px;
  border: 1px solid var(--ink);
  background: var(--ink);
  color: var(--paper);
  cursor: pointer;
  transition: background 120ms, color 120ms, transform 80ms;
}
.btn:hover { background: var(--accent); border-color: var(--accent); }
.btn:active { transform: translateY(1px); }
.btn-ghost {
  background: transparent;
  color: var(--ink);
}
.btn-ghost:hover { background: var(--ink); color: var(--paper); }

/* Links */
a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--accent); }

/* Focus */
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* Numbered dot — logo accent */
.brief-dot { color: var(--accent); }
[data-palette="mono"] .brief-dot { color: var(--ink); }

/* Selection */
::selection { background: var(--ink); color: var(--paper); }