@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800&family=Inter:wght@400;500;600;700&display=swap');

:root {
  --bg-dark: #070a12;
  --bg-card: rgba(15, 23, 42, 0.75);
  --bg-card-hover: rgba(30, 41, 59, 0.85);
  --accent-cyan: #38bdf8;
  --accent-indigo: #818cf8;
  --accent-green: #34d399;
  --accent-amber: #fbbf24;
  --accent-rose: #fb7185;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --border-glow: rgba(56, 189, 248, 0.15);
  --glass-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Outfit', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

body {
  background: var(--bg-dark);
  background-image: 
    radial-gradient(circle at 15% 15%, rgba(56, 189, 248, 0.12) 0%, transparent 45%),
    radial-gradient(circle at 85% 85%, rgba(129, 140, 248, 0.12) 0%, transparent 45%),
    radial-gradient(circle at 50% 50%, rgba(52, 211, 153, 0.05) 0%, transparent 60%);
  color: var(--text-main);
  min-height: 100vh;
  padding: 2rem 1.5rem;
}

.dashboard-container {
  max-width: 1400px;
  margin: 0 auto;
}

/* Header Premium */
.header {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-glow);
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 1rem;
}

.header h1 {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: linear-gradient(135deg, #38bdf8 0%, #818cf8 50%, #34d399 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.header p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-top: 0.25rem;
}

/* Tarjetas de Estadísticas Principales */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-glow);
  border-radius: 1rem;
  padding: 1.25rem 1.5rem;
  box-shadow: var(--glass-shadow);
  display: flex;
  align-items: center;
  gap: 1.25rem;
  transition: all 0.3s ease;
}

.stat-card:hover {
  transform: translateY(-4px);
  border-color: rgba(56, 189, 248, 0.4);
}

.stat-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.stat-val {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.1;
}

.stat-lbl {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
  font-weight: 500;
}

/* Pestañas Rediseñadas (Sin Scrollbar Horizontal) */
.tabs-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  background: rgba(15, 23, 42, 0.7);
  backdrop-filter: blur(12px);
  padding: 0.6rem;
  border-radius: 1rem;
  border: 1px solid var(--border-glow);
  margin-bottom: 2rem;
  box-shadow: var(--glass-shadow);
}

.tab-btn {
  flex: 1 1 auto;
  padding: 0.8rem 1.25rem;
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-weight: 700;
  font-size: 0.9rem;
  border-radius: 0.75rem;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  white-space: nowrap;
}

.tab-btn:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.06);
}

.tab-btn.active {
  background: linear-gradient(135deg, #0284c7 0%, #6366f1 100%);
  color: #ffffff;
  box-shadow: 0 8px 20px rgba(2, 132, 199, 0.35);
}

/* Contenido de Pestaña con Animación */
.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: slideUp 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Tarjetas Principales */
.card {
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border-glow);
  border-radius: 1.25rem;
  padding: 1.75rem;
  box-shadow: var(--glass-shadow);
  margin-bottom: 1.5rem;
}

.card-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

/* Tablas Ultra Modernas */
.table-responsive {
  width: 100%;
  overflow-x: auto;
  border-radius: 0.85rem;
  border: 1px solid rgba(255, 255, 255, 0.06);
}

table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  text-align: left;
}

th {
  background: rgba(30, 41, 59, 0.7);
  color: var(--accent-cyan);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 1rem 1.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

td {
  padding: 1rem 1.25rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  font-size: 0.9rem;
  color: var(--text-main);
  vertical-align: middle;
}

tr:last-child td {
  border-bottom: none;
}

tr:hover td {
  background: rgba(56, 189, 248, 0.03);
}

/* Badges con Brillo HSL */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.badge-signed {
  background: rgba(52, 211, 153, 0.15);
  color: var(--accent-green);
  border: 1px solid rgba(52, 211, 153, 0.35);
}

.badge-pending {
  background: rgba(251, 191, 36, 0.15);
  color: var(--accent-amber);
  border: 1px solid rgba(251, 191, 36, 0.35);
}

/* Botones & Acciones en Fila Horizontal */
.action-buttons {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: nowrap;
}

.btn-primary, .btn-success, .btn-pdf {
  padding: 0.5rem 1rem;
  border-radius: 0.6rem;
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, #0284c7 0%, #38bdf8 100%);
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(2, 132, 199, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(2, 132, 199, 0.45);
}

.btn-success {
  background: linear-gradient(135deg, #059669 0%, #34d399 100%);
  color: #064e3b;
  box-shadow: 0 4px 12px rgba(5, 150, 105, 0.25);
}

.btn-success:hover {
  transform: translateY(-2px);
  color: #000;
}

.btn-pdf {
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.3);
  color: var(--accent-cyan);
}

.btn-pdf:hover {
  background: var(--accent-cyan);
  color: #070a12;
  transform: translateY(-2px);
}

.btn-maint-prev {
  background: rgba(52, 211, 153, 0.12);
  border-color: rgba(52, 211, 153, 0.3);
  color: var(--accent-green);
}

.btn-maint-prev:hover {
  background: var(--accent-green);
  color: #070a12;
}

.btn-maint-corr {
  background: rgba(251, 113, 133, 0.12);
  border-color: rgba(251, 113, 133, 0.3);
  color: var(--accent-rose);
}

.btn-maint-corr:hover {
  background: var(--accent-rose);
  color: #ffffff;
}

/* Modales */
.modal-overlay {
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(12px);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.modal-content {
  background: #0f172a;
  border: 1px solid var(--border-glow);
  border-radius: 1.5rem;
  width: 92%;
  max-width: 960px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 2.25rem;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8);
}

/* Estilos para Índice de Costos & Precios de Productos */
.price-tag {
  background: linear-gradient(135deg, rgba(52, 211, 153, 0.15), rgba(16, 185, 129, 0.25));
  border: 1px solid rgba(52, 211, 153, 0.4);
  color: var(--accent-green);
  font-family: monospace;
  font-weight: 800;
  padding: 0.3rem 0.75rem;
  border-radius: 999px;
  font-size: 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.cost-card {
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.8), rgba(15, 23, 42, 0.9));
  border: 1px solid var(--border-glow);
  border-radius: 1.2rem;
  padding: 1.5rem;
  box-shadow: var(--glass-shadow);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.cost-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-cyan);
}

.client-badge {
  background: rgba(56, 189, 248, 0.15);
  border: 1px solid rgba(56, 189, 248, 0.3);
  color: var(--accent-cyan);
  padding: 0.25rem 0.65rem;
  border-radius: 6px;
  font-size: 0.75rem;
  font-weight: 700;
}