/* ============================================================
   HGRS · Soporte Remoto — sistema de diseño
   Dirección: "sala de control". Pizarra de confianza + ámbar
   señal (único acento) + teal de datos. Mono para lecturas.
   ============================================================ */

:root {
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SFMono-Regular", Menlo, Consolas, "Liberation Mono", monospace;
  --radius: 14px;
  --radius-sm: 10px;
}

/* --- Modo claro --- */
[data-theme="light"] {
  --bg: #EDF0F3;
  --bg-grain: #E7EBF0;
  --bg-elev: #FFFFFF;
  --bg-elev-2: #E4E9EF;
  --text: #0E1622;
  --text-soft: #566071;
  --border: #D6DCE4;
  --border-strong: #B9C2CE;
  --accent: #C85F12;          /* ámbar-señal */
  --accent-soft: #FBEFE2;
  --accent-contrast: #ffffff;
  --teal: #1E837E;            /* dato / descargas */
  --win: #1F5FA8;
  --mac: #35363E;
  --danger: #C0392B;
  --shadow: 0 24px 48px -24px rgba(14, 22, 34, 0.30);
  --shadow-sm: 0 1px 2px rgba(14, 22, 34, 0.06), 0 4px 12px -4px rgba(14, 22, 34, 0.12);
  --grid-line: rgba(14, 22, 34, 0.05);
}

/* --- Modo oscuro --- */
[data-theme="dark"] {
  --bg: #0A0E13;
  --bg-grain: #0D1219;
  --bg-elev: #131A23;
  --bg-elev-2: #1B232E;
  --text: #E9EEF4;
  --text-soft: #93A1B2;
  --border: #262F3B;
  --border-strong: #36424F;
  --accent: #F2A03D;          /* ámbar luminoso */
  --accent-soft: #2A2113;
  --accent-contrast: #1A1206;
  --teal: #36B5B0;
  --win: #5C9BE0;
  --mac: #C9CFD9;
  --danger: #E57065;
  --shadow: 0 28px 56px -28px rgba(0, 0, 0, 0.75);
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4), 0 6px 16px -6px rgba(0, 0, 0, 0.5);
  --grid-line: rgba(255, 255, 255, 0.04);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  background: var(--bg);
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 44px 44px;
  color: var(--text);
  font-family: var(--font);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--accent); color: var(--accent-contrast); }

/* Foco visible (teclado) — WCAG 2.4.7 */
a:focus-visible,
button:focus-visible,
input:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 6px;
}

/* --- Botón de tema --- */
.theme-toggle {
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 100;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--bg-elev);
  color: var(--text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  transition: transform 0.18s ease, border-color 0.18s ease, color 0.18s ease;
}
.theme-toggle:hover { transform: scale(1.06); color: var(--accent); border-color: var(--accent); }
.theme-toggle:active { transform: scale(0.94); }
.theme-toggle svg { width: 19px; height: 19px; }
.icon-sun { display: none; }

/* Utilidades de texto */
.mono { font-family: var(--mono); }
.eyebrow {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-soft);
}

/* Respetar preferencia de movimiento reducido */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}