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

:root {
    --primary: #2c3e50;
    --secondary: #3498db;
    --accent: #e74c3c;
    --success: #27ae60;
    --warning: #f39c12;
    --light: #ecf0f1;
    --dark: #2c3e50;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f5f7fa;
}

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

/* Header */
.main-header {
    background: var(--primary);
    color: white;
    padding: 1rem 0;
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo a {
    color: white;
    text-decoration: none;
    font-size: 1.5rem;
    font-weight: bold;
}

.logo i {
    color: var(--accent);
    margin-right: 10px;
}

.main-nav ul {
    list-style: none;
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.main-nav a {
    color: white;
    text-decoration: none;
    padding: 8px 15px;
    border-radius: 5px;
    transition: background 0.3s;
}

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

.btn-urgente {
    background: var(--accent) !important;
    font-weight: bold;
}

.btn-urgente:hover {
    background: #c0392b !important;
}

/* Main Content */
.main-content {
    min-height: calc(100vh - 200px);
    padding: 40px 0;
}

/* Footer */
.main-footer {
    background: var(--dark);
    color: white;
    text-align: center;
    padding: 20px 0;
}

/* Alertas */
.alert {
    padding: 15px 20px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.alert-info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

.alert-success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.alert-danger {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-warning {
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeeba;
}

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

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
}

.form-control {
    width: 100%;
    padding: 10px 15px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 16px;
}

.form-control:focus {
    outline: none;
    border-color: var(--secondary);
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.1);
}

/* Botones */
.btn {
    display: inline-block;
    padding: 10px 25px;
    background: var(--secondary);
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 16px;
    text-decoration: none;
    transition: all 0.3s;
}

.btn:hover {
    background: #2980b9;
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-primary {
    background: var(--secondary);
}

.btn-danger {
    background: var(--accent);
}

.btn-success {
    background: var(--success);
}

.btn-block {
    display: block;
    width: 100%;
}

/* Cards */
.card {
    background: white;
    border-radius: 10px;
    padding: 25px;
    box-shadow: var(--shadow);
    margin-bottom: 20px;
}

.card-title {
    margin-bottom: 15px;
    font-size: 1.25rem;
}

/* Responsive */
@media (max-width: 768px) {
    .main-header .container {
        flex-direction: column;
        gap: 15px;
    }
    
    .main-nav ul {
        justify-content: center;
    }
}

/* Hero Section */
.hero-section {
    background: linear-gradient(135deg, #2c3e50 0%, #3498db 100%);
    color: white;
    padding: 80px 0;
    border-radius: 15px;
    margin-bottom: 40px;
    text-align: center;
}

.hero-content h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
}

.hero-content .highlight {
    color: #ffd700;
}

.hero-content p {
    font-size: 1.2rem;
    opacity: 0.9;
    margin-bottom: 30px;
}

.hero-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-lg {
    padding: 15px 30px;
    font-size: 1.1rem;
}

/* Stats */
.stats-section {
    margin-bottom: 40px;
}

.stat-card {
    background: white;
    padding: 25px;
    border-radius: 10px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: transform 0.3s;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-card i {
    font-size: 2.5rem;
    color: var(--secondary);
    margin-bottom: 10px;
}

.stat-card h3 {
    font-size: 2rem;
    margin: 10px 0;
}

.stat-card p {
    color: #666;
    margin: 0;
}

/* Recursos */
.recursos-section {
    margin-bottom: 40px;
}

.recursos-section h2 {
    text-align: center;
    margin-bottom: 30px;
}

.recurso-card {
    text-align: center;
    padding: 30px 20px;
    height: 100%;
}

.recurso-icon {
    font-size: 3rem;
    color: var(--secondary);
    margin-bottom: 15px;
}

.recurso-card h3 {
    font-size: 1.1rem;
    margin-bottom: 10px;
}

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, #e74c3c, #c0392b);
    color: white;
    padding: 60px 0;
    border-radius: 15px;
    text-align: center;
}

.cta-section h2 {
    font-size: 2rem;
    margin-bottom: 15px;
}

.cta-section p {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 25px;
}

.pulse {
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* Utilidades */
.row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
}

.justify-content-center {
    justify-content: center;
}

.text-center {
    text-align: center;
}

.text-muted {
    color: #6c757d;
}

.mt-3 { margin-top: 1rem; }
.mt-5 { margin-top: 3rem; }
.mb-20 { margin-bottom: 20px; }

.col-md-3 { grid-column: span 1; }
.col-md-4 { grid-column: span 1; }
.col-md-6 { grid-column: span 2; }
.col-md-8 { grid-column: span 3; }

@media (min-width: 768px) {
    .col-md-3 { grid-column: span 1; }
    .col-md-4 { grid-column: span 1; }
    .col-md-6 { grid-column: span 2; }
    .col-md-8 { grid-column: span 3; }
}