/* ==========================================================================
   TRACKER 24-7 COLOMBIA — DESIGN TOKENS
   Paleta inspirada en instrumentación satelital: azul espacio profundo,
   cian de señal activa, rojo de geolocalización (tomado del logo) y
   verde de estado operativo.
   ========================================================================== */
:root {
  /* Color: fondo */
  --bg-void: #05090f;
  --bg-primary: #0a1628;
  --bg-secondary: #0f2440;
  --bg-panel: rgba(15, 36, 64, 0.55);
  --bg-panel-solid: #101f36;

  /* Color: acentos */
  --accent-cyan: #00d9ff;
  --accent-cyan-dim: #0891b2;
  --accent-red: #e8393a;
  --accent-green: #00c853;
  --accent-amber: #ffb020;
  --accent-gray: #64748b;

  /* Color: texto */
  --text-primary: #e8eef5;
  --text-secondary: #8fa3bf;
  --text-muted: #56698a;

  /* Bordes / brillo */
  --border-soft: rgba(143, 163, 191, 0.14);
  --border-glow: rgba(0, 217, 255, 0.35);
  --shadow-glow-cyan: 0 0 24px rgba(0, 217, 255, 0.25);
  --shadow-glow-red: 0 0 24px rgba(232, 57, 58, 0.35);

  /* Tipografía */
  --font-display: 'Rajdhani', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Radios / transiciones */
  --radius-md: 10px;
  --radius-lg: 16px;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ---- RESET ---- */
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg-void);
  color: var(--text-primary);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input { font-family: inherit; }
a { color: inherit; text-decoration: none; }
::selection { background: var(--accent-cyan); color: var(--bg-void); }

:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 2px;
}

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

/* ==========================================================================
   [LOGIN] LAYOUT GENERAL — split screen
   ========================================================================== */
.login-screen {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  position: relative;
}

/* ---- [LOGIN] Panel izquierdo: identidad de marca ---- */
.brand-panel {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 4vw 6vw;
  background:
    radial-gradient(ellipse 80% 60% at 30% 20%, rgba(0, 217, 255, 0.10), transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 90%, rgba(232, 57, 58, 0.08), transparent 60%),
    linear-gradient(160deg, var(--bg-primary) 0%, var(--bg-void) 100%);
  overflow: hidden;
  border-right: 1px solid var(--border-soft);
}

/* Grid HUD de fondo */
.hud-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 217, 255, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 217, 255, 0.055) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 70% 70% at 50% 40%, black 20%, transparent 80%);
  pointer-events: none;
}

/* Barrido de escaneo (radar sweep) — signature element */
.radar-sweep {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 900px;
  height: 900px;
  transform: translate(-50%, -50%);
  pointer-events: none;
  opacity: 0.55;
}
.radar-sweep .ring {
  position: absolute;
  inset: 0;
  border: 1px solid rgba(0, 217, 255, 0.14);
  border-radius: 50%;
}
.radar-sweep .ring--1 { inset: 30%; }
.radar-sweep .ring--2 { inset: 15%; }
.radar-sweep .ring--3 { inset: 0%; }
.radar-sweep .beam {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(from 0deg, rgba(0, 217, 255, 0.35), transparent 30%);
  animation: spin 6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.brand-content { position: relative; z-index: 2; max-width: 560px; }

.brand-logo-row {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-bottom: 42px;
}
.brand-logo-row img {
  width: 68px;
  height: 68px;
  border-radius: 50%;
  filter: drop-shadow(0 0 18px rgba(0, 217, 255, 0.35));
}
.brand-wordmark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.55rem;
  letter-spacing: 0.5px;
  line-height: 1.05;
}
.brand-wordmark span { color: var(--accent-red); }
.brand-wordmark small {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 3px;
  color: var(--text-secondary);
  font-weight: 400;
  margin-top: 2px;
}

.brand-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 3px;
  color: var(--accent-cyan);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
}
.brand-eyebrow::before {
  content: '';
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent-green);
  box-shadow: 0 0 8px var(--accent-green);
  animation: pulse-dot 1.8s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.7); }
}

.brand-headline {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 3.6vw, 3.4rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: 0.2px;
  margin-bottom: 20px;
}
.brand-headline em {
  font-style: normal;
  color: var(--accent-cyan);
  text-shadow: 0 0 20px rgba(0, 217, 255, 0.4);
}

.brand-sub {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.7;
  max-width: 460px;
  margin-bottom: 40px;
}

/* Tira de estadísticas en vivo */
.brand-stats {
  display: flex;
  gap: 36px;
  padding-top: 30px;
  border-top: 1px solid var(--border-soft);
}
.brand-stats .stat-num {
  font-family: var(--font-mono);
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--text-primary);
}
.brand-stats .stat-num .unit { font-size: 0.9rem; color: var(--accent-cyan); margin-left: 2px; }
.brand-stats .stat-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-top: 4px;
}

/* ---- [LOGIN] Panel derecho: formulario de acceso ---- */
.access-panel {
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-void);
  position: relative;
  padding: 40px;
}
.access-panel::before {
  content: '';
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(180deg, rgba(255,255,255,0.012) 0px, rgba(255,255,255,0.012) 1px, transparent 1px, transparent 3px);
  pointer-events: none;
}

.access-card {
  position: relative;
  width: 100%;
  max-width: 400px;
  background: var(--bg-panel);
  backdrop-filter: blur(18px);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-lg);
  padding: 44px 40px 36px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.45), var(--shadow-glow-cyan);
  animation: rise-in 0.7s var(--ease);
}
@keyframes rise-in {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

.access-card::after {
  content: '';
  position: absolute;
  top: -1px; left: 40px; right: 40px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-cyan), transparent);
}

.access-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 6px;
}
.access-subtitle {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 32px;
}

.field-group { margin-bottom: 20px; }
.field-label {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 8px;
  font-family: var(--font-mono);
}
.field-input-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.field-input-wrap svg {
  position: absolute;
  left: 14px;
  width: 16px; height: 16px;
  color: var(--text-muted);
  transition: color 0.2s var(--ease);
}
.field-input-wrap input {
  width: 100%;
  padding: 13px 14px 13px 42px;
  background: rgba(5, 12, 22, 0.6);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.92rem;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.field-input-wrap input:focus {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 0 3px rgba(0, 217, 255, 0.12);
}
.field-input-wrap input:focus + svg,
.field-input-wrap:focus-within svg { color: var(--accent-cyan); }

.toggle-visibility {
  position: absolute;
  right: 12px;
  color: var(--text-muted);
  padding: 4px;
}
.toggle-visibility:hover { color: var(--accent-cyan); }

.access-error {
  display: none;
  align-items: center;
  gap: 8px;
  background: rgba(232, 57, 58, 0.1);
  border: 1px solid rgba(232, 57, 58, 0.35);
  color: #ff8788;
  font-size: 0.82rem;
  padding: 10px 12px;
  border-radius: var(--radius-md);
  margin-bottom: 18px;
}
.access-error.show { display: flex; }
.access-error svg { width: 16px; height: 16px; flex-shrink: 0; }

.btn-access {
  width: 100%;
  padding: 14px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-cyan-dim));
  color: #04141c;
  font-weight: 700;
  font-size: 0.92rem;
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
  box-shadow: 0 8px 24px rgba(0, 217, 255, 0.25);
}
.btn-access:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(0, 217, 255, 0.38); }
.btn-access:active { transform: translateY(0); }
.btn-access svg { width: 18px; height: 18px; }

.access-footnote {
  margin-top: 22px;
  text-align: center;
  font-size: 0.74rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.shake { animation: shake 0.4s var(--ease); }
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-8px); }
  40% { transform: translateX(8px); }
  60% { transform: translateX(-5px); }
  80% { transform: translateX(5px); }
}

/* ---- RESPONSIVE ---- */
@media (max-width: 980px) {
  .login-screen { grid-template-columns: 1fr; }
  .brand-panel { padding: 48px 32px 32px; border-right: none; border-bottom: 1px solid var(--border-soft); }
  .brand-stats { flex-wrap: wrap; row-gap: 18px; }
  .access-panel { padding: 32px 20px 56px; }
}
@media (max-width: 480px) {
  .brand-headline { font-size: 1.9rem; }
  .access-card { padding: 34px 24px 28px; }
}