/* ==========================================================================
   VARIABLES Y TOKENS DE DISEÑO (Tema Oscuro Premium / Dark-Tech)
   ========================================================================== */
:root {
  /* Fondo principal y capas de superficie */
  --bg-main: #070913;
  --bg-card: rgba(17, 25, 46, 0.65);
  --bg-input: rgba(30, 41, 73, 0.35);
  --bg-hover: rgba(255, 255, 255, 0.04);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.16);

  /* Colores de Texto */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;

  /* Colores de Acento (Calibrados) */
  --primary: #6366f1; /* Indigo */
  --primary-rgb: 99, 102, 241;
  --primary-hover: #4f46e5;
  --primary-glow: rgba(99, 102, 241, 0.15);

  --success: #10b981; /* Emerald Green */
  --success-bg: rgba(16, 185, 129, 0.12);
  --success-border: rgba(16, 185, 129, 0.25);
  --success-text: #34d399;

  --danger: #f43f5e; /* Rose Red */
  --danger-bg: rgba(244, 63, 94, 0.12);
  --danger-border: rgba(244, 63, 94, 0.25);
  --danger-text: #fb7185;

  --warning: #f59e0b; /* Amber Gold */
  --warning-bg: rgba(245, 158, 11, 0.12);
  --warning-border: rgba(245, 158, 11, 0.25);
  --warning-text: #fbbf24;

  --info: #38bdf8; /* Sky Blue */
  --info-bg: rgba(56, 189, 248, 0.12);
  --info-border: rgba(56, 189, 248, 0.25);
  --info-text: #7dd3fc;

  /* Tipografías de Sistema Calibradas (100% Offline-First) */
  --font-heading: "Segoe UI Semibold", "Segoe UI", -apple-system, BlinkMacSystemFont, "Roboto", "Helvetica Neue", sans-serif;
  --font-body: "Segoe UI", -apple-system, BlinkMacSystemFont, "Roboto", "Helvetica Neue", Arial, sans-serif;

  /* Bordes y Sombras */
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 6px;
  --shadow-lg: 0 10px 30px -10px rgba(0, 0, 0, 0.5), 0 1px 0 rgba(255, 255, 255, 0.05) inset;
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.3);

  /* Transición */
  --transition-smooth: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   ESTILOS BASE
   ========================================================================== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-main);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.025em; /* Ajuste premium para fuentes de sistema */
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: var(--transition-smooth);
}
a:hover {
  color: var(--primary-hover);
  text-shadow: 0 0 12px var(--primary-glow);
}

/* ==========================================================================
   TARJETAS DE CRISTAL (GLASSMORPHISM)
   ========================================================================== */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 24px;
  transition: var(--transition-smooth);
}
.glass-card:hover {
  border-color: var(--border-hover);
  box-shadow: 0 12px 40px -12px rgba(99, 102, 241, 0.12), var(--shadow-lg);
}

/* ==========================================================================
   BOTONES PREMIUM
   ========================================================================== */
button, .btn {
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 13.5px;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: var(--transition-smooth);
  outline: none;
}

/* Botón Primario (Indigo degradado con brillo) */
button.primary, .btn-primary {
  background: linear-gradient(135deg, #4f46e5 0%, #6366f1 100%);
  color: #ffffff;
  border: none;
  box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4), 0 1px 0 rgba(255, 255, 255, 0.15) inset;
}
button.primary:hover:not(:disabled), .btn-primary:hover {
  transform: translateY(-1.5px);
  background: linear-gradient(135deg, #4338ca 0%, #4f46e5 100%);
  box-shadow: 0 6px 20px rgba(99, 102, 241, 0.55);
}
button.primary:active:not(:disabled) {
  transform: translateY(0.5px);
}

/* Botón Secundario (Estilo Cristal con bordes sutiles) */
button.secondary, .btn-secondary, button.sec {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
}
button.secondary:hover:not(:disabled), .btn-secondary:hover, button.sec:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--border-hover);
  color: #ffffff;
}

/* Botón Peligro (Rojo/Rosa degradado) */
button.danger, .btn-danger {
  background: linear-gradient(135deg, #e11d48 0%, #f43f5e 100%);
  color: #ffffff;
  border: none;
  box-shadow: 0 4px 12px rgba(244, 63, 94, 0.3);
}
button.danger:hover:not(:disabled), .btn-danger:hover {
  transform: translateY(-1.5px);
  background: linear-gradient(135deg, #be123c 0%, #e11d48 100%);
  box-shadow: 0 6px 16px rgba(244, 63, 94, 0.45);
}

button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* ==========================================================================
   INPUTS Y DROPDOWNS
   ========================================================================== */
input, select, textarea {
  font-family: var(--font-body);
  font-size: 13.5px;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 10px 14px;
  border-radius: var(--radius-md);
  transition: var(--transition-smooth);
  outline: none;
  width: 100%;
}
input:focus, select:focus, textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2), 0 4px 12px rgba(0, 0, 0, 0.2);
  background-color: rgba(30, 41, 73, 0.5);
}
input::placeholder {
  color: var(--text-muted);
}

select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2394a3b8'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 16px;
  padding-right: 40px;
}

/* ==========================================================================
   TABLAS Y FILAS ESTILIZADAS
   ========================================================================== */
.table-container {
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background-color: rgba(17, 25, 46, 0.4);
}
table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 13px;
}
th {
  background-color: rgba(22, 34, 57, 0.8);
  font-family: var(--font-heading);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--text-secondary);
  padding: 12px 16px;
  border-bottom: 2px solid var(--border-color);
}
td {
  padding: 11px 16px;
  border-bottom: 1px solid var(--border-color);
  color: var(--text-secondary);
  transition: var(--transition-smooth);
}
tr:hover td {
  background-color: var(--bg-hover);
  color: var(--text-primary);
}
tr.selected td {
  background-color: rgba(99, 102, 241, 0.08) !important;
  color: var(--text-primary);
  border-bottom-color: rgba(99, 102, 241, 0.2);
}

/* ==========================================================================
   KPI CHIPS Y BADGES
   ========================================================================== */
.badge {
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 20px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid transparent;
}
.badge-success {
  background-color: var(--success-bg);
  border-color: var(--success-border);
  color: var(--success-text);
}
.badge-danger {
  background-color: var(--danger-bg);
  border-color: var(--danger-border);
  color: var(--danger-text);
}
.badge-warning {
  background-color: var(--warning-bg);
  border-color: var(--warning-border);
  color: var(--warning-text);
}
.badge-info {
  background-color: var(--info-bg);
  border-color: var(--info-border);
  color: var(--info-text);
}

/* KPI Card */
.kpi-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.kpi-card .label {
  font-family: var(--font-heading);
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}
.kpi-card .value {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
}
.kpi-card .desc {
  font-size: 11.5px;
  color: var(--text-secondary);
}

/* ==========================================================================
   ELEMENTOS INTERACTIVOS / CLIQUEABLES
   ========================================================================== */
a, button, select, input[type="checkbox"], input[type="radio"], .nav-item, tr.grp-head, th.sortable, .clickable-element {
  cursor: pointer;
}

/* Enlaces y textos con comportamiento de click (leyendas) */
.clickable-text {
  color: var(--info-text);
  font-weight: 500;
  transition: var(--transition-smooth);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  position: relative;
}
.clickable-text::after {
  content: '';
  position: absolute;
  bottom: -1px;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: var(--info-text);
  transform: scaleX(0.4);
  transform-origin: left;
  transition: var(--transition-smooth);
}
.clickable-text:hover {
  color: #fff;
  text-shadow: 0 0 8px rgba(56, 189, 248, 0.5);
}
.clickable-text:hover::after {
  background-color: #fff;
  transform: scaleX(1);
}

/* Indicador visual de ordenación en tablas */
th.sortable {
  position: relative;
  padding-right: 26px !important;
}
th.sortable::after {
  content: '↕';
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 11px;
  opacity: 0.35;
  transition: var(--transition-smooth);
}
th.sortable:hover::after {
  opacity: 0.9;
  color: var(--primary);
}

/* Estilo sutil de Hover en Leyendas y Filas */
.hover-glow:hover {
  background: var(--bg-hover);
  box-shadow: 0 0 15px rgba(99, 102, 241, 0.08);
}