/* ══════════════════════════════════════════════════════════════════════════
   Pantalla de acceso

   Es la única pantalla del sistema con este lenguaje visual, y es a propósito:
   es la puerta, no una herramienta de trabajo. Adentro manda `app.css`, que es
   sobrio porque ahí se leen cifras de seis dígitos todo el día.

   La paleta es la «hueso y naranja» del diseño aprobado. El conmutador de temas
   del archivo original no se trajo: estaba marcado «no va en producción».
   ══════════════════════════════════════════════════════════════════════════ */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --f-display: "Anton", Impact, "Arial Narrow", sans-serif;
  --f-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;

  --sp-1: 4px;  --sp-2: 8px;  --sp-3: 12px; --sp-4: 16px;
  --sp-5: 24px; --sp-6: 32px; --sp-8: 48px; --sp-10: 64px;

  --panel: #14120f;
  --panel-text: #efe9de;
  --panel-muted: rgba(239, 233, 222, .55);

  --form-bg: #efe9de;
  --surface: #ffffff;
  --text: #14120f;
  --muted: #6f675b;
  --line: rgba(20, 18, 15, .16);
  --line-strong: rgba(20, 18, 15, .32);

  --accent: #c2410c;
  --accent-hover: #a8380a;
  --on-accent: #efe9de;

  --danger: #b3251f;
  --danger-bg: rgba(179, 37, 31, .09);
  --ok: #1f6b3f;
  --ok-bg: rgba(31, 107, 63, .09);

  --glow: rgba(194, 65, 12, .22);
}

html, body { height: 100%; }

body {
  font-family: var(--f-body);
  font-size: 15px;
  line-height: 1.55;
  color: var(--text);
  background: var(--form-bg);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
button, input { font: inherit; color: inherit; background: none; border: none; }
button { cursor: pointer; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 4px; }

/* ── Estructura ─────────────────────────────────────────────────────────── */

.login {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  min-height: 100vh;
  min-height: 100svh;
}

/* ── Panel visual ───────────────────────────────────────────────────────── */

.panel {
  background: var(--panel);
  color: var(--panel-text);
  position: relative;
  overflow: hidden;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: var(--sp-5);
  padding: var(--sp-10) clamp(28px, 4.4vw, 64px);
}

.panel::before {
  content: "";
  position: absolute; left: 50%; top: 52%; translate: -50% -50%;
  width: min(96%, 760px); aspect-ratio: 1 / .42; border-radius: 50%;
  background: radial-gradient(ellipse at center, var(--glow) 0%, transparent 68%);
  pointer-events: none;
}

.panel-brand {
  position: relative; z-index: 2;
  display: flex; align-items: baseline; gap: var(--sp-3);
}
.panel-mark {
  font-family: var(--f-display); font-size: 22px;
  letter-spacing: 1.5px; text-transform: uppercase;
}
.panel-sub {
  font-size: 11.5px; letter-spacing: 1.6px; text-transform: uppercase;
  color: var(--panel-muted); font-weight: 600;
}

/* El vehículo entra completo, nunca recortado. */
.panel-media {
  position: relative; z-index: 1; min-height: 0;
  display: flex; align-items: center; justify-content: center;
}
.panel-vehiculo {
  max-width: 100%; max-height: 100%;
  width: auto; height: auto; object-fit: contain;
  filter: drop-shadow(0 26px 30px rgba(0, 0, 0, .5));
  will-change: transform;
}

.panel-foot { position: relative; z-index: 2; max-width: 36ch; }
.panel-frase {
  font-family: var(--f-display); text-transform: uppercase;
  font-size: clamp(24px, 2.7vw, 38px); line-height: 1.02;
  letter-spacing: -.005em; min-height: 2.1em;
}
.panel-frase em { font-style: normal; color: var(--accent); }
.panel-rule { display: block; margin-top: var(--sp-4); width: 44px; height: 2px; background: var(--accent); }

/* ── Formulario ─────────────────────────────────────────────────────────── */

.form-side {
  display: flex; align-items: center; justify-content: center;
  padding: var(--sp-10) clamp(24px, 4vw, 56px);
  background: var(--form-bg);
}
.form-box { width: 100%; max-width: 392px; }

.form-eyebrow {
  font-size: 10.5px; letter-spacing: 2.4px; text-transform: uppercase;
  color: var(--muted); font-weight: 700;
  display: flex; align-items: center; gap: var(--sp-3);
}
.form-eyebrow::before { content: ""; width: 24px; height: 1px; background: var(--accent); }

.form-title {
  font-family: var(--f-display); text-transform: uppercase;
  font-size: clamp(30px, 3.6vw, 44px); line-height: 1; margin-top: var(--sp-4);
}
.form-sub { font-size: 14px; color: var(--muted); margin-top: var(--sp-3); }

.campos { margin-top: var(--sp-8); display: flex; flex-direction: column; gap: var(--sp-5); }
.campo { display: flex; flex-direction: column; gap: var(--sp-2); }
.campo label {
  font-size: 10.5px; letter-spacing: 1.6px; text-transform: uppercase;
  color: var(--muted); font-weight: 700;
}

.campo-input { position: relative; display: flex; align-items: center; }
.campo-input input {
  width: 100%; padding: 12px 0;
  background: transparent; border: none; border-bottom: 1px solid var(--line-strong);
  font-size: 16px; font-family: var(--f-mono); letter-spacing: .3px;
  transition: border-color .2s;
}
.campo-input input::placeholder {
  color: var(--muted); opacity: .55; font-family: var(--f-body); letter-spacing: 0;
}
.campo-input input:focus { outline: none; border-bottom-color: var(--accent); }

/* La línea que crece al enfocar. `:focus-within` en el contenedor, no un
   hermano del input: el input está DENTRO de `.campo-input`, así que un
   selector de hermano (`~`) nunca llegaría. */
.campo-input::after {
  content: "";
  position: absolute; left: 0; bottom: 0; height: 2px; width: 100%;
  background: var(--accent);
  transform: scaleX(0); transform-origin: left;
  transition: transform .3s cubic-bezier(.2, .8, .3, 1);
}
.campo-input:focus-within::after { transform: scaleX(1); }

/* Un campo que el servidor rechazó se marca en el propio campo, no solo arriba. */
.campo-input input[aria-invalid="true"] { border-bottom-color: var(--danger); }
.campo-input:has(input[aria-invalid="true"])::after { background: var(--danger); }

.ver-pass {
  position: absolute; right: 0; padding: var(--sp-2);
  font-size: 10.5px; letter-spacing: 1.2px; text-transform: uppercase;
  color: var(--muted); font-weight: 700; border-radius: 4px;
}
.ver-pass:hover { color: var(--accent); }

.aviso-caps {
  display: none; align-items: center; gap: 6px;
  font-size: 11.5px; color: var(--danger); margin-top: 2px;
}
.aviso-caps.visible { display: flex; }

.fila-extra {
  display: flex; justify-content: space-between; align-items: center;
  gap: var(--sp-4); margin-top: var(--sp-2);
}
.check { display: flex; align-items: center; gap: var(--sp-2); font-size: 13px; color: var(--muted); cursor: pointer; }
.check input { width: 15px; height: 15px; accent-color: var(--accent); cursor: pointer; }
.nota-min { font-size: 13px; color: var(--muted); }

.btn-entrar {
  width: 100%; margin-top: var(--sp-6);
  padding: 15px var(--sp-5); border-radius: 6px;
  background: var(--accent); color: var(--on-accent);
  font-size: 12px; letter-spacing: 2px; text-transform: uppercase; font-weight: 700;
  display: flex; align-items: center; justify-content: center; gap: var(--sp-3);
  transition: background .2s, transform .16s;
}
.btn-entrar:hover { background: var(--accent-hover); transform: translateY(-1px); }
.btn-entrar:disabled { opacity: .65; cursor: wait; transform: none; }

.spinner {
  width: 14px; height: 14px; border-radius: 50%; display: none;
  border: 2px solid currentColor; border-top-color: transparent;
  animation: girar .7s linear infinite;
}
.btn-entrar.cargando .spinner { display: block; }
@keyframes girar { to { transform: rotate(360deg); } }

/* Avisos del servidor. No hay versión en JavaScript: lo que decide si las
   credenciales sirven es el servidor, y el mensaje viene de ahí. */
.aviso {
  display: flex; align-items: flex-start; gap: var(--sp-2);
  margin-top: var(--sp-5); padding: var(--sp-3) var(--sp-4);
  border-radius: 4px; font-size: 13px;
}
.aviso-error { background: var(--danger-bg); border-left: 2px solid var(--danger); color: var(--danger); }
.aviso-exito { background: var(--ok-bg); border-left: 2px solid var(--ok); color: var(--ok); }

.campo-error { font-size: 12px; color: var(--danger); }

.form-foot {
  margin-top: var(--sp-8); padding-top: var(--sp-5);
  border-top: 1px solid var(--line);
  font-size: 12px; color: var(--muted);
  display: flex; justify-content: space-between; gap: var(--sp-4); flex-wrap: wrap;
}
.form-foot .mono { font-family: var(--f-mono); }

/* ── Entrada: 450 ms y no se repite ─────────────────────────────────────── */

.anim { opacity: 0; transform: translateY(14px); animation: entra .45s cubic-bezier(.2, .8, .3, 1) forwards; }
.anim:nth-child(1) { animation-delay: .02s; }
.anim:nth-child(2) { animation-delay: .06s; }
.anim:nth-child(3) { animation-delay: .10s; }
.anim:nth-child(4) { animation-delay: .14s; }
@keyframes entra { to { opacity: 1; transform: none; } }

.panel-brand { opacity: 0; animation: entra .45s .04s cubic-bezier(.2, .8, .3, 1) forwards; }
.panel-vehiculo { opacity: 0; animation: entraVehiculo .55s .08s cubic-bezier(.2, .8, .3, 1) forwards; }
@keyframes entraVehiculo { from { opacity: 0; transform: scale(1.04); } to { opacity: 1; transform: none; } }
.panel-foot { opacity: 0; animation: entra .45s .16s cubic-bezier(.2, .8, .3, 1) forwards; }

.sacudir { animation: sacudir .4s ease; }
@keyframes sacudir {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-7px); }
  45% { transform: translateX(6px); }
  70% { transform: translateX(-3px); }
}

/* ── Responsive ─────────────────────────────────────────────────────────── */

@media (max-width: 900px) {
  .login { grid-template-columns: 1fr; }
  .panel { min-height: 300px; padding: var(--sp-6) var(--sp-5); gap: var(--sp-4); }
  .panel-media { max-height: 170px; }
  .panel-frase { font-size: 22px; }
  .form-side { padding: var(--sp-8) var(--sp-5); }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  .anim, .panel-brand, .panel-vehiculo, .panel-foot { opacity: 1; transform: none; }
}