/**
 * PHAENACORY™ — fundo fibra de carbono escura (identidade prancha / esportes de board)
 * Importar antes dos CSS de página: <link rel="stylesheet" href="/css/carbon-fiber.css" />
 */

:root {
  --carbon-base: #080a0d;
  --carbon-tile-a: #12161c;
  --carbon-tile-b: #0c0f14;
  --carbon-tile-c: #181e26;
  --carbon-edge: rgba(90, 110, 130, 0.22);
  --carbon-gloss: rgba(255, 255, 255, 0.035);
  --carbon-shadow: rgba(0, 180, 216, 0.04);
}

body.theme-carbon {
  background-color: var(--carbon-base);
  background-image:
    radial-gradient(ellipse 120% 80% at 50% -20%, rgba(0, 180, 216, 0.07) 0%, transparent 55%),
    radial-gradient(ellipse 90% 60% at 100% 100%, rgba(255, 255, 255, 0.02) 0%, transparent 45%),
    linear-gradient(118deg, transparent 46%, var(--carbon-gloss) 49%, transparent 52%),
    repeating-linear-gradient(
      45deg,
      var(--carbon-tile-a) 0px,
      var(--carbon-tile-a) 3px,
      var(--carbon-tile-b) 3px,
      var(--carbon-tile-b) 6px
    ),
    repeating-linear-gradient(
      -45deg,
      var(--carbon-tile-c) 0px,
      var(--carbon-tile-c) 3px,
      var(--carbon-tile-b) 3px,
      var(--carbon-tile-b) 6px
    );
  background-size:
    100% 100%,
    100% 100%,
    100% 100%,
    10px 10px,
    10px 10px;
  background-attachment: fixed;
}

body.theme-carbon::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.35;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
}

body.theme-carbon .card,
body.theme-carbon .plan,
body.theme-carbon .segment {
  background: linear-gradient(155deg, rgba(20, 26, 34, 0.94) 0%, rgba(10, 14, 20, 0.97) 100%);
  border: 1px solid var(--carbon-edge);
  box-shadow:
    0 24px 64px rgba(0, 0, 0, 0.55),
    inset 0 1px 0 rgba(255, 255, 255, 0.05),
    inset 0 -1px 0 rgba(0, 0, 0, 0.35);
}

body.theme-carbon .formula-board {
  background:
    radial-gradient(ellipse 80% 60% at 15% 20%, rgba(255, 255, 255, 0.05) 0%, transparent 55%),
    linear-gradient(155deg, #161c24 0%, #0e1218 45%, #101418 100%);
  border-color: rgba(70, 90, 110, 0.35);
}

body.theme-carbon input[type="email"],
body.theme-carbon input[type="tel"],
body.theme-carbon input[type="number"],
body.theme-carbon input[type="file"],
body.theme-carbon select,
body.theme-carbon textarea {
  background: rgba(8, 12, 18, 0.85);
  border-color: rgba(60, 80, 100, 0.45);
}

body.theme-carbon .pha-block,
body.theme-carbon .mvv-block,
body.theme-carbon .pha-mark-inline,
body.theme-carbon .value-card {
  background: linear-gradient(155deg, rgba(18, 24, 32, 0.92) 0%, rgba(8, 12, 18, 0.95) 100%);
  border-color: rgba(70, 90, 110, 0.35);
}

body.theme-carbon table.limits th,
body.theme-carbon table.limits td {
  border-color: rgba(70, 90, 110, 0.35);
}

body.theme-carbon table.limits th {
  background: rgba(12, 18, 28, 0.9);
}

/* Fórmulas em giz — sempre visíveis sobre o carbon */
body.theme-carbon .formula-chalkboard {
  z-index: 1;
}

body.theme-carbon .formula-chalk--outer {
  opacity: 0.9;
  color: rgba(238, 244, 255, 0.96);
  text-shadow:
    0 0 2px rgba(255, 255, 255, 0.95),
    0 0 14px rgba(0, 180, 216, 0.28),
    0 0 28px rgba(0, 180, 216, 0.12),
    2px 3px 8px rgba(0, 0, 0, 0.65);
}

body.theme-carbon .formula-chalk--outer.formula-chalk--sm {
  opacity: 0.82;
}

body.theme-carbon .formula-board .formula-chalk {
  opacity: 0.96;
}