/* =====================================================================
   1erp · estilos base (colores, tipografía, campos, botones, tablas)
   Los demás archivos de css/ agregan lo de cada parte de la app.
   Paleta inspirada en el código de colores de la fibra óptica:
   aqua (multimodo OM3) como acento de acción, amarillo (monomodo) como resaltado.
   Tipografía: Poppins para títulos, botones y menús; Inter para el contenido.
   ===================================================================== */
:root {
  color-scheme: light;
  --paper: #F4F6F8;
  --panel: #FFFFFF;
  --ink: #1B2A3A;
  --muted: #5B6B7B;
  --line: #D5DCE3;
  --line-soft: #E7ECF0;
  --aqua: #00818A;
  --aqua-ink: #FFFFFF;
  --aqua-soft: #E0F3F4;
  --yellow: #F2C200;
  --yellow-soft: #FFF6CC;
  --danger: #B3261E;
  --danger-soft: #FBE9E7;
  --ok: #2E7D32;
  --ok-soft: #E6F4E7;
  --shadow: 0 1px 2px rgba(27, 42, 58, .06), 0 8px 24px rgba(27, 42, 58, .08);
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-title: "Poppins", system-ui, -apple-system, "Segoe UI", sans-serif;
  box-sizing: border-box;
  padding-top: env(safe-area-inset-top, 0px);
  padding-bottom: env(safe-area-inset-bottom, 0px);
}
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;
    --paper: #0F1822;
    --panel: #16222E;
    --ink: #E4EAF0;
    --muted: #93A3B3;
    --line: #2A3947;
    --line-soft: #1F2D3A;
    --aqua: #3CC4CC;
    --aqua-ink: #0F1822;
    --aqua-soft: #10343A;
    --yellow: #F2C200;
    --yellow-soft: #3A3210;
    --danger: #F2B8B5;
    --danger-soft: #3A1A18;
    --ok: #81C784;
    --ok-soft: #173421;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 8px 24px rgba(0, 0, 0, .35);
  }
}
*, *::before, *::after { box-sizing: inherit; }
html, body { margin: 0; }
body {
  background: var(--paper);
  color: var(--ink);
  font: 15px/1.5 var(--font);
  -webkit-font-smoothing: antialiased;
}
.boot { padding: 2rem; color: var(--muted); }
h1, h2, h3 { font-family: var(--font-title); font-weight: 600; line-height: 1.25; letter-spacing: -0.01em; margin: 0; }
h1 { font-size: 1.6rem; }
h2 { font-size: 1.2rem; }
h3 { font-size: 1rem; }
a { color: var(--aqua); }
.num { font-variant-numeric: tabular-nums; text-align: right; white-space: nowrap; }
.muted { color: var(--muted); }
.small { font-size: .85rem; }
.hidden { display: none !important; }
:focus-visible { outline: 2px solid var(--aqua); outline-offset: 2px; }

/* ---------- formularios ---------- */
label { display: block; font-size: .82rem; color: var(--muted); margin-bottom: .25rem; font-weight: 500; }
input, select, textarea {
  width: 100%; font: inherit; color: var(--ink);
  background: var(--panel); border: 1px solid var(--line); border-radius: 6px;
  padding: .5rem .6rem; min-height: 38px;
}
textarea { resize: vertical; min-height: 64px; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--aqua); box-shadow: 0 0 0 3px var(--aqua-soft); }
input.num { text-align: right; }
input[type=checkbox], input[type=radio] {
  width: 18px; height: 18px; min-height: 0; padding: 0; margin: 0;
  accent-color: var(--aqua); cursor: pointer; vertical-align: middle;
}
/* interruptor tipo Apple: apagado = gris, encendido = verde */
input[type=checkbox].switch {
  -webkit-appearance: none; appearance: none; position: relative; flex: none;
  width: 44px; height: 26px; min-height: 0; border-radius: 999px; border: none;
  background: var(--line); cursor: pointer; transition: background .2s;
}
input[type=checkbox].switch::before {
  content: ""; position: absolute; top: 3px; left: 3px; width: 20px; height: 20px; border-radius: 50%;
  background: #fff; box-shadow: 0 1px 3px rgba(0, 0, 0, .3); transition: transform .2s;
}
input[type=checkbox].switch:checked { background: #34C759; }
input[type=checkbox].switch:checked::before { transform: translateX(18px); }
.grid { display: grid; gap: .85rem 1rem; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); }
.grid .wide { grid-column: 1 / -1; }
.check { display: flex; align-items: center; gap: .4rem; font-size: .9rem; color: var(--ink); }
.check input { width: auto; min-height: 0; }

/* ---------- botones ---------- */
button, .btn {
  font: inherit; font-family: var(--font-title); font-weight: 500; cursor: pointer;
  display: inline-flex; align-items: center; gap: .35rem; justify-content: center;
  padding: .5rem .9rem; min-height: 38px; border-radius: 6px;
  border: 1px solid var(--line); background: var(--panel); color: var(--ink); text-decoration: none;
}
button:hover, .btn:hover { border-color: var(--muted); }
button.primary, .btn.primary { background: var(--aqua); border-color: var(--aqua); color: var(--aqua-ink); }
button.primary:hover { filter: brightness(1.08); }
button.danger { color: var(--danger); }
button.ghost { background: none; border-color: transparent; color: var(--muted); padding: .3rem .5rem; min-height: 30px; }
button.ghost:hover { color: var(--ink); background: var(--line-soft); }
button:disabled { opacity: .5; cursor: progress; }

/* ---------- tablas ---------- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th { text-align: left; font-weight: 500; font-size: .8rem; color: var(--muted); padding: .6rem .75rem; border-bottom: 1px solid var(--line); white-space: nowrap; }
td { padding: .6rem .75rem; border-bottom: 1px solid var(--line-soft); vertical-align: top; }
tr.click { cursor: pointer; }
tr.click:hover td { background: var(--line-soft); }
tbody tr:last-child td { border-bottom: none; }
.desc-main { font-weight: 500; }
.desc-sub { color: var(--muted); font-size: .85rem; }
.empty { padding: 2.5rem 1rem; text-align: center; color: var(--muted); }

/* ---------- estados ---------- */
.badge { display: inline-block; font-size: .78rem; font-weight: 500; padding: .1rem .55rem; border-radius: 999px; border: 1px solid var(--line); white-space: nowrap; }
.badge.borrador { color: var(--muted); }
.badge.enviada { color: var(--aqua); border-color: var(--aqua); }
.badge.aceptada { color: var(--ok); border-color: var(--ok); }
.badge.rechazada, .badge.vencida { color: var(--danger); border-color: var(--danger); }

/* ---------- login ---------- */
.login { min-height: 100vh; display: grid; place-items: center; padding: 1rem; }
.login-card { width: min(380px, 100%); padding: 2rem; }
.login-card h1 { margin: .75rem 0 .25rem; }
.login-card form > * + * { margin-top: .85rem; }
.error { color: var(--danger); background: var(--danger-soft); border-radius: 6px; padding: .5rem .75rem; font-size: .9rem; }

/* ---------- toast ---------- */
#toast { position: fixed; left: 50%; bottom: calc(1.5rem + env(safe-area-inset-bottom, 0px)); transform: translateX(-50%) translateY(calc(100% + 3rem)); z-index: 60;
  background: var(--ink); color: var(--paper); padding: .6rem 1rem; border-radius: 8px; box-shadow: var(--shadow); transition: transform .2s; max-width: 90vw; }
#toast.show { transform: translateX(-50%) translateY(0); }
#toast.err { background: var(--danger); color: #fff; }

@media (prefers-reduced-motion: reduce) { * { transition: none !important; } }