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

:root {
    --primary: #4361ee;
    --primary-dark: #3a56d4;
    --secondary: #7209b7;
    --success: #4cc9f0;
    --danger: #f72585;
    --warning: #f8961e;
    --info: #4895ef;
    --light: #f8f9fa;
    --dark: #212529;
    --gray: #6c757d;
    --light-gray: #e9ecef;
    --border-radius: 8px;
    --box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f5f7fb;
    color: var(--dark);
    line-height: 1.6;
}

.container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 250px;
    background: linear-gradient(180deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    padding: 20px 0;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
}

.logo {
    padding: 0 20px 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.logo h2 {
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.sidebar nav ul {
    list-style: none;
    padding: 20px 0;
}

.sidebar nav li {
    margin-bottom: 5px;
}

.sidebar nav a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: var(--transition);
    border-left: 4px solid transparent;
}

.sidebar nav a:hover,
.sidebar nav li.active a {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border-left-color: white;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 250px;
    padding: 20px;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--light-gray);
}

.header-left h1 {
    font-size: 2rem;
    color: var(--dark);
    margin-bottom: 5px;
}

.header-left p {
    color: var(--gray);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
    background: white;
    padding: 10px 15px;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
}

.user-info i {
    font-size: 1.5rem;
    color: var(--primary);
}

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

.card-header {
    padding: 20px;
    border-bottom: 1px solid var(--light-gray);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-body {
    padding: 20px;
}

/* Stats Cards */
.stats-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    display: flex;
    align-items: center;
    padding: 20px;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

.card-icon {
    width: 60px;
    height: 60px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-right: 15px;
    font-size: 1.5rem;
}

.card-icon.blue { background: #e3f2fd; color: var(--primary); }
.card-icon.green { background: #e8f5e9; color: #4caf50; }
.card-icon.orange { background: #fff3e0; color: #ff9800; }
.card-icon.purple { background: #f3e5f5; color: #9c27b0; }

.card-content h3 {
    font-size: 1.8rem;
    margin-bottom: 5px;
}

.card-content p {
    color: var(--gray);
    font-size: 0.9rem;
}

/* Buttons */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
    text-decoration: none;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--light-gray);
    color: var(--dark);
}

.btn-secondary:hover {
    background: #dee2e6;
}

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

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

.btn-icon {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    transition: var(--transition);
    margin: 0 3px;
}

.btn-edit { background: #e3f2fd; color: var(--primary); }
.btn-view { background: #e8f5e9; color: #4caf50; }
.btn-cancel { background: #ffebee; color: var(--danger); }

.btn-icon:hover {
    transform: scale(1.1);
}

/* Tables */
.data-table {
    width: 100%;
    border-collapse: collapse;
}

.data-table thead {
    background: var(--light);
}

.data-table th {
    padding: 15px;
    text-align: left;
    font-weight: 600;
    color: var(--dark);
    border-bottom: 2px solid var(--light-gray);
}

.data-table td {
    padding: 15px;
    border-bottom: 1px solid var(--light-gray);
}

.data-table tbody tr:hover {
    background: var(--light);
}

/* Badges */
.badge {
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-success {
    background: #d4edda;
    color: #155724;
}

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

.badge-danger {
    background: #f8d7da;
    color: #721c24;
}

.badge-info {
    background: #d1ecf1;
    color: #0c5460;
}

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

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

label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: var(--dark);
}

input, select, textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.1);
}

.form-actions {
    display: flex;
    gap: 10px;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--light-gray);
}

/* Alerts */
.alert {
    padding: 15px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    border-left: 4px solid;
}

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

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

/* Credit Summary */
.credit-summary {
    background: var(--light);
    padding: 20px;
    border-radius: var(--border-radius);
}

.summary-item {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid #ddd;
}

.summary-item.total {
    border-top: 2px solid var(--primary);
    border-bottom: none;
    font-size: 1.2rem;
    margin-top: 10px;
    padding-top: 15px;
}

/* Quick Actions */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.action-btn {
    background: white;
    border: 2px dashed #ddd;
    border-radius: var(--border-radius);
    padding: 30px 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: var(--dark);
    transition: var(--transition);
}

.action-btn:hover {
    border-color: var(--primary);
    color: var(--primary);
    transform: translateY(-5px);
}

.action-btn i {
    font-size: 2rem;
    margin-bottom: 10px;
}

/* Search Box */
.search-box {
    position: relative;
    width: 300px;
}

.search-box input {
    padding: 10px 15px 10px 40px;
    border-radius: 20px;
    border: 1px solid #ddd;
}

.search-box i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--gray);
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        width: 70px;
    }
    
    .sidebar .logo h2 span,
    .sidebar nav a span {
        display: none;
    }
    
    .sidebar nav a {
        justify-content: center;
        padding: 15px;
    }
    
    .sidebar nav a i {
        font-size: 1.2rem;
    }
    
    .main-content {
        margin-left: 70px;
    }
    
    .stats-cards {
        grid-template-columns: 1fr;
    }
    
    header {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
}