/* Reset y configuración base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Estilos específicos para iconos en botones */
.btn .fas, .btn .far, .btn .fab {
    margin-right: 6px;
}

/* Estilos para iconos en títulos */
h1 .fas, h1 .far, h1 .fab,
h2 .fas, h2 .far, h2 .fab,
h3 .fas, h3 .far, h3 .fab {
    margin-right: 10px;
    color: inherit;
}

/* Estilos para iconos en el logo */
.logo-icon .fas {
    font-size: 2rem;
    color: #fff;
}

/* Estilos para iconos en el footer */
.footer-container .fas {
    margin-right: 8px;
    color: #666;
}

/* Estilos para iconos en botones */
.btn .fas, .btn .far, .btn .fab {
    font-size: 14px;
}

/* Estilos para iconos en tarjetas de resumen */
.summary-card h3 .fas {
    color: #1976d2;
    font-size: 1.2em;
}

/* Estilos para iconos en estadísticas */
.stat-icon .fas {
    font-size: 2.5rem;
    color: #1976d2;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f8f9fa;
}

/* Header y navegación */
.main-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: white;
    font-size: 1.5rem;
    font-weight: bold;
}

.logo-icon {
    font-size: 2rem;
    margin-right: 10px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-menu a {
    color: white;
    text-decoration: none;
    padding: 10px 15px;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

.nav-menu a:hover {
    background-color: rgba(255,255,255,0.1);
}

/* Área de usuario y logout */
.nav-user {
    display: flex;
    align-items: center;
    gap: 15px;
}

.user-info {
    color: white;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 5px;
}

.user-info .fas {
    font-size: 0.8rem;
    opacity: 0.8;
}

.user-role {
    font-size: 0.8rem;
    opacity: 0.7;
    font-style: italic;
}

.logout-btn {
    color: white;
    text-decoration: none;
    padding: 8px 12px;
    border-radius: 5px;
    background-color: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    transition: all 0.3s ease;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 5px;
}

.logout-btn:hover {
    background-color: rgba(255,255,255,0.2);
    border-color: rgba(255,255,255,0.3);
    transform: translateY(-1px);
}

.logout-btn .fas {
    font-size: 0.8rem;
}

/* Contenido principal */
.main-content {
    min-height: calc(100vh - 125px);
    padding: 40px 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Hero Section */
.hero-section {
    text-align: center;
    margin-bottom: 30px;
    padding: 30px 0;
}

.hero-title {
    font-size: 3rem;
    color: #2c3e50;
    margin-bottom: 20px;
    font-weight: 700;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: #7f8c8d;
    max-width: 600px;
    margin: 0 auto;
}

/* Grid de herramientas */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 80px;
}

.tool-card {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

.tool-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.15);
}

.tool-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

.tool-title {
    font-size: 1.5rem;
    color: #2c3e50;
    margin-bottom: 15px;
    font-weight: 600;
}

.tool-description {
    color: #7f8c8d;
    margin-bottom: 25px;
    line-height: 1.6;
}

.tool-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    text-decoration: none;
    padding: 12px 24px;
    border-radius: 25px;
    font-weight: 500;
    transition: transform 0.3s ease;
}

.tool-link:hover {
    transform: scale(1.05);
}

/* Sección de características */
.features-section {
    text-align: center;
    margin-bottom: 60px;
}

.features-section h2 {
    font-size: 2.5rem;
    color: #2c3e50;
    margin-bottom: 50px;
    font-weight: 600;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.feature h3 {
    font-size: 1.3rem;
    color: #2c3e50;
    margin-bottom: 15px;
    font-weight: 600;
}

.feature p {
    color: #7f8c8d;
    line-height: 1.6;
}

/* Footer */
.main-footer {
    background: #2c3e50;
    color: white;
    padding: 15px 0;
    text-align: center;
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Formularios */
.form-group {
    margin-bottom: 20px;
}

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #2c3e50;
}

input[type="text"], 
input[type="password"], 
input[type="email"], 
input[type="url"],
select, 
textarea {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e1e8ed;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s ease;
    background-color: white;
}

input[type="text"]:focus, 
input[type="password"]:focus, 
input[type="email"]:focus, 
input[type="url"]:focus,
select:focus, 
textarea:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

textarea {
    min-height: 120px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    resize: vertical;
}

/* Botones */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: linear-gradient(135deg, #95a5a6 0%, #7f8c8d 100%);
}

.btn-success {
    background: linear-gradient(135deg, #27ae60 0%, #2ecc71 100%);
}

.btn-danger {
    background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
}

.btn-warning {
    background: linear-gradient(135deg, #f39c12 0%, #e67e22 100%);
}

/* Mensajes */
.message {
    padding: 15px 20px;
    border-radius: 8px;
    margin-bottom: 20px;
    border-left: 4px solid;
}

.success {
    background-color: #d4edda;
    border-color: #27ae60;
    color: #155724;
}

.error {
    background-color: #f8d7da;
    border-color: #e74c3c;
    color: #721c24;
}

.warning {
    background-color: #fff3cd;
    border-color: #f39c12;
    color: #856404;
}

.info {
    background-color: #d1ecf1;
    border-color: #17a2b8;
    color: #0c5460;
}

/* Cards */
.card {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.08);
    margin-bottom: 30px;
}

.card-header {
    background: #f8f9fa;
    margin: -30px -30px 30px -30px;
    padding: 20px 30px;
    border-radius: 15px 15px 0 0;
    border-bottom: 1px solid #e1e8ed;
}

.card-header h2 {
    margin: 0;
    color: #2c3e50;
    font-weight: 600;
}

/* Tablas */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 20px 0;
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

th, td {
    padding: 15px;
    text-align: left;
    border-bottom: 1px solid #e1e8ed;
}

th {
    background: #f8f9fa;
    font-weight: 600;
    color: #2c3e50;
}

tr:hover {
    background-color: #f8f9fa;
}

/* Pre y código */
pre {
    color: #000;
    padding: 20px;
    border-radius: 8px;
    overflow-x: auto;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.9rem;
    line-height: 1.5;
    margin: 20px 0;
}

/* Tabs */
.tabs {
    display: flex;
    border-bottom: 2px solid #e1e8ed;
    margin-bottom: 30px;
}

.tab {
    padding: 15px 25px;
    cursor: pointer;
    border: none;
    background: none;
    font-size: 1rem;
    color: #7f8c8d;
    border-bottom: 3px solid transparent;
    transition: all 0.3s ease;
}

.tab.active {
    color: #667eea;
    border-bottom-color: #667eea;
    font-weight: 600;
}

.tab:hover {
    color: #667eea;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .nav-user {
        flex-direction: column;
        gap: 8px;
    }
    
    .user-info {
        font-size: 0.8rem;
    }
    
    .logout-btn {
        font-size: 0.8rem;
        padding: 6px 10px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .card {
        padding: 20px;
    }
    
    .card-header {
        margin: -20px -20px 20px -20px;
        padding: 15px 20px;
    }
}

/* Utilidades */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-20 { margin-bottom: 20px; }
.mb-30 { margin-bottom: 30px; }
.mb-40 { margin-bottom: 40px; }

.mt-20 { margin-top: 20px; }
.mt-30 { margin-top: 30px; }
.mt-40 { margin-top: 40px; }

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

.gap-10 { gap: 10px; }
.gap-20 { gap: 20px; }
.gap-30 { gap: 30px; }