/* TDS — Colors. Values verbatim from "TDS Design Manual" pp. 11–15 (HEX/RGB/CMYK swatches). */
:root{
  /* Neutrals — "Zurückhaltung als Prinzip": the brand stands on off-white and off-black */
  --tds-offwhite:#FBF9F3;      /* 251,249,243 · CMYK 0,1,3,2 */
  --tds-white:#FFFFFF;
  --tds-offblack:#1D1D1B;      /* 29,29,27 · CMYK 0,0,7,89 */
  --tds-graphite:#303030;      /* 48,48,48 · CMYK 0,0,0,81 */
  --tds-black:#000000;
  --tds-grey-600:#676766;      /* secondary text / icon strokes in layouts */
  --tds-grey-300:#C7C7C7;      /* hairline panel stroke */
  --tds-grey-200:#DADADA;      /* construction grid lines, muted labels */

  /* B.ORANGE — Fire */
  --tds-orange-900:#520B00;    /* 82,11,0 · CMYK 0,87,100,68 */
  --tds-orange-700:#E8600C;    /* 233,95,15 · CMYK 0,59,94,9 */
  --tds-orange-500:#F39424;    /* 243,148,36 · CMYK 0,39,85,5 — house colour */
  --tds-orange-300:#F9BD7D;    /* 249,189,125 · CMYK 0,24,50,2 */
  --tds-orange-200:#F5DDB7;    /* 245,221,183 · CMYK 0,10,25,4 */
  --tds-orange-100:#F5EBDA;    /* 245,235,218 · CMYK 0,4,11,4 */

  /* B.BLUE — Water */
  --tds-blue-900:#002F38;      /* 0,47,56 · CMYK 100,16,0,78 */
  --tds-blue-700:#047185;      /* 4,113,133 · CMYK 97,15,0,48 */
  --tds-blue-500:#4697AB;      /* 70,151,171 · CMYK 59,12,0,33 — house colour */
  --tds-blue-300:#90CAE2;      /* 144,202,226 · CMYK 36,11,0,11 */
  --tds-blue-200:#E2EFF4;      /* 226,239,244 · CMYK 7,2,0,4 */
  --tds-blue-100:#E2E8E8;      /* 227,232,232 · CMYK 2,0,0,9 */

  /* B.GREEN — Earth */
  --tds-green-900:#173B2E;     /* 23,59,46 · CMYK 61,0,22,77 */
  --tds-green-700:#224E3F;     /* 34,78,63 · CMYK 56,0,19,69 — house colour */
  --tds-green-500:#2F7765;     /* 47,119,101 · CMYK 61,0,15,53 */
  --tds-green-300:#A9BEAD;     /* 169,190,173 · CMYK 11,0,9,25 */
  --tds-green-200:#CEE0D1;     /* 206,224,209 · CMYK 8,0,7,12 */
  --tds-green-100:#DEE9E1;     /* 222,233,225 · CMYK 5,0,3,9 */

  /* Map / Lageplan ("Wirkung.", p. 27) */
  --tds-map-ground:#FBF9F3;
  --tds-map-block:#E1E6E7;     /* Grau-Blau building blocks */
  --tds-map-road:#F5EBDA;      /* Sand */
  --tds-map-park:#CEE0D1;      /* Hellgrün */

  /* House accents (the one colour per building used as marker) */
  --tds-house-orange:var(--tds-orange-500);
  --tds-house-blue:var(--tds-blue-500);
  --tds-house-green:var(--tds-green-700);

  /* Semantic aliases */
  --surface-page:var(--tds-white);
  --surface-warm:var(--tds-offwhite);
  --surface-dark:var(--tds-offblack);
  --surface-graphite:var(--tds-graphite);
  --text-primary:var(--tds-offblack);
  --text-strong:var(--tds-black);
  --text-secondary:var(--tds-grey-600);
  --text-inverse:var(--tds-white);
  --text-muted-label:var(--tds-grey-200);
  --border-hairline:var(--tds-grey-300);
  --border-grid:var(--tds-grey-200);
  --accent:var(--tds-offblack);
}