/* ==========================================================================
   ESTILOS DE LA PANTALLA PRINCIPAL / HOME: TKD PRO MANAGER (THEME CLARO)
   ========================================================================== */

:root {
  --bg-primary: #F8FAFC;
  --bg-surface: #FFFFFF;
  --accent-blue: #2563EB;
  --accent-hover: #1D4ED8;
  --text-main: #0F172A;
  --text-muted: #64748B;
  --border-color: #E2E8F0;
  --badge-bg: #EFF6FF;
  --badge-text: #2563EB;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-main: 0 4px 15px -2px rgba(0, 0, 0, 0.05);
  --shadow-hover: 0 10px 25px -5px rgba(37, 99, 235, 0.12);
  --font-family: 'Outfit', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header & Navbar */
.navbar {
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02);
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-main);
}

.navbar-brand img {
  height: 40px;
  width: auto;
  object-fit: contain;
}

.navbar-brand span {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.navbar-brand span highlight {
  color: var(--accent-blue);
}

.user-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  background-color: var(--badge-bg);
  padding: 6px 14px;
  border-radius: 20px;
  border: 1px solid rgba(37, 99, 235, 0.2);
}

.user-name {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--badge-text);
}

.user-role {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-muted);
  background: #FFFFFF;
  padding: 2px 8px;
  border-radius: 12px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 0.6rem 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all 0.2s ease-in-out;
  text-decoration: none;
}

.btn-primary {
  background-color: var(--accent-blue);
  color: #FFFFFF;
}

.btn-primary:hover {
  background-color: var(--accent-hover);
}

.btn-secondary {
  background-color: var(--bg-primary);
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.btn-danger {
  background-color: #FEE2E2;
  color: #DC2626;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.btn-danger:hover {
  background-color: #FCA5A5;
}

/* App Container */
.app-container {
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem 1.5rem;
  flex: 1;
}

/* Welcome Banner */
.welcome-banner {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 2rem;
  margin-bottom: 2rem;
  box-shadow: var(--shadow-main);
}

.welcome-text h1 {
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  color: var(--text-main);
}

.welcome-text p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* Métricas del Sistema */
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
  margin-bottom: 2.5rem;
}

.metric-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  box-shadow: var(--shadow-main);
}

.metric-icon {
  font-size: 2rem;
  width: 52px;
  height: 52px;
  background-color: #EFF6FF;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
}

.metric-value {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-main);
  line-height: 1.2;
}

.metric-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* Grid de Módulos (Cards de Navegación) */
.modules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
}

.module-card {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  text-decoration: none;
  color: var(--text-main);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  box-shadow: var(--shadow-main);
}

.module-card:hover {
  transform: translateY(-4px);
  border-color: var(--accent-blue);
  box-shadow: var(--shadow-hover);
}

.module-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.module-icon {
  width: 42px;
  height: 42px;
  object-fit: contain;
}

.module-badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 12px;
  background-color: #DCFCE7;
  color: #166534;
}

.module-title {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-main);
}

.module-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Responsive Mobile */
@media (max-width: 640px) {
  .app-container {
    padding: 1rem;
  }

  .navbar {
    flex-direction: column;
    gap: 0.75rem;
    align-items: flex-start;
  }

  .metrics-grid {
    grid-template-columns: 1fr;
  }

  .modules-grid {
    grid-template-columns: 1fr;
  }
}