:root {
    --primary: #667eea;
    --secondary: #764ba2;
    --success: #28a745;
    --danger: #dc3545;
    --warning: #ffc107;
    --info: #17a2b8;
    --dark: #2c3e50;
    --light: #f8f9fa;
}

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

body { 
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif; 
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%); 
    min-height: 100vh; 
    color: #333; 
}

/* Login */
#login-screen { 
    display: none; 
    justify-content: center; 
    align-items: center; 
    min-height: 100vh; 
}

.login-container { 
    background: white; 
    padding: 3rem; 
    border-radius: 20px; 
    box-shadow: 0 20px 60px rgba(0,0,0,0.3); 
    width: 100%; 
    max-width: 420px; 
    animation: fadeIn 0.5s; 
}

@keyframes fadeIn { 
    from { opacity: 0; transform: translateY(-20px); } 
    to { opacity: 1; transform: translateY(0); } 
}

.login-container h2 { 
    color: var(--primary); 
    margin-bottom: 2rem; 
    text-align: center; 
}

/* App Layout */
#app-container { display: none; }

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

.sidebar { 
    width: 280px; 
    background: linear-gradient(180deg, var(--dark) 0%, #34495e 100%); 
    color: white; 
    position: fixed; 
    height: 100vh; 
    overflow-y: auto; 
    z-index: 1000; 
    transition: transform 0.3s;
}

.sidebar-header { 
    padding: 2rem 1.5rem; 
    border-bottom: 1px solid rgba(255,255,255,0.1); 
}

.sidebar-header h2 { 
    font-size: 1.4rem; 
    margin-bottom: 0.5rem; 
}

.nav-item { 
    padding: 1rem 1.5rem; 
    cursor: pointer; 
    transition: all 0.3s; 
    border-left: 3px solid transparent; 
    display: flex; 
    align-items: center; 
    gap: 1rem; 
}

.nav-item:hover { 
    background: rgba(255,255,255,0.1); 
    border-left-color: var(--info); 
}

.nav-item.active { 
    background: rgba(52, 152, 219, 0.2); 
    border-left-color: var(--info); 
}

/* Main Content */
.main-content { 
    flex: 1; 
    margin-left: 280px; 
    background: var(--light); 
    min-height: 100vh; 
}

.header { 
    background: white; 
    padding: 1.5rem 2rem; 
    box-shadow: 0 2px 10px rgba(0,0,0,0.1); 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
}

.header h1 { 
    color: var(--dark); 
    font-size: 1.8rem; 
}

/* Botón hamburguesa para móviles */
.btn-menu-toggle {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--dark);
    cursor: pointer;
    padding: 0.5rem;
    display: none;
    transition: all 0.3s;
}

.btn-menu-toggle:hover {
    color: var(--primary);
    transform: scale(1.1);
}

.btn-menu-toggle:active {
    transform: scale(0.95);
}

.btn-logout { 
    background: var(--danger); 
    color: white; 
    border: none; 
    padding: 0.75rem 1.5rem; 
    border-radius: 8px; 
    cursor: pointer; 
    font-weight: 600; 
    transition: all 0.3s; 
}

.btn-logout:hover { 
    background: #c0392b; 
    transform: translateY(-2px); 
}

/* Content */
.content-area { padding: 2rem; }

.content-section { 
    display: none; 
    animation: slideIn 0.3s; 
}

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

@keyframes slideIn { 
    from { opacity: 0; transform: translateX(-10px); } 
    to { opacity: 1; transform: translateX(0); } 
}

/* Cards */
.card { 
    background: white; 
    border-radius: 15px; 
    box-shadow: 0 5px 20px rgba(0,0,0,0.1); 
    margin-bottom: 2rem; 
    overflow: hidden; 
}

.card-header { 
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%); 
    color: white; 
    padding: 1.5rem 2rem; 
    font-size: 1.25rem; 
    font-weight: 600; 
    display: flex; 
    align-items: center; 
    gap: 0.75rem; 
}

.card-body { padding: 2rem; }

/* Acordeón */
.accordion {
    margin-bottom: 1rem;
}

.accordion-item {
    background: white;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    margin-bottom: 0.75rem;
    overflow: hidden;
    transition: all 0.3s;
}

.accordion-item.disabled {
    opacity: 0.6;
    background: #f8f9fa;
}

.accordion-header {
    padding: 1.25rem 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    border-bottom: 2px solid transparent;
    transition: all 0.3s;
    user-select: none;
    min-height: 60px;
}

.accordion-header:hover:not(.disabled) {
    background: linear-gradient(135deg, #e9ecef 0%, #dee2e6 100%);
}

.accordion-header.active {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    border-bottom-color: rgba(255,255,255,0.2);
}

.accordion-item.disabled .accordion-header {
    cursor: not-allowed;
}

.accordion-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 600;
    font-size: 1.1rem;
}

.accordion-icon {
    transition: transform 0.3s;
    font-size: 1.2rem;
}

.accordion-header.active .accordion-icon {
    transform: rotate(90deg);
}

.accordion-body {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease-out, padding 0.3s;
    padding: 0 1.5rem;
}

.accordion-body.active {
    max-height: 3000px;
    padding: 1.5rem;
}

.accordion-badge {
    background: var(--success);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.accordion-item.disabled .accordion-badge {
    background: #6c757d;
}

/* Auto-consulta */
.cedula-consulta-container {
    position: relative;
}

.cedula-status {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.875rem;
    color: var(--info);
    display: none;
    animation: fadeIn 0.3s;
}

.cedula-status.show {
    display: block;
}

/* Forms */
.form-grid { 
    display: grid; 
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); 
    gap: 1.5rem; 
    margin-bottom: 2rem; 
}

.form-group { margin-bottom: 1rem; }

.form-group label { 
    display: block; 
    margin-bottom: 0.5rem; 
    font-weight: 600; 
    color: #555; 
}

.form-group input, 
.form-group select, 
.form-group textarea { 
    width: 100%; 
    padding: 0.875rem; 
    border: 2px solid var(--light); 
    border-radius: 8px; 
    font-size: 1rem; 
    transition: all 0.3s; 
}

.form-group input:focus, 
.form-group select:focus, 
.form-group textarea:focus { 
    outline: none; 
    border-color: var(--primary); 
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1); 
}

.checkbox-container { 
    display: flex; 
    align-items: center; 
    padding: 1rem; 
    background: #f8f9ff; 
    border: 2px solid var(--light); 
    border-radius: 8px; 
    cursor: pointer; 
    transition: all 0.3s; 
}

.checkbox-container:hover { 
    border-color: var(--primary); 
}

.checkbox-container input { 
    margin-right: 0.75rem; 
    width: 18px; 
    height: 18px; 
    cursor: pointer;
}

/* Buttons */
.btn-group { 
    display: flex; 
    gap: 1rem; 
    flex-wrap: wrap; 
}

.btn { 
    padding: 0.875rem 1.5rem; 
    border: none; 
    border-radius: 8px; 
    font-size: 1rem; 
    font-weight: 600; 
    cursor: pointer; 
    transition: all 0.3s; 
    display: inline-flex; 
    align-items: center; 
    gap: 0.5rem; 
}

.btn:hover { 
    transform: translateY(-2px); 
    box-shadow: 0 5px 15px rgba(0,0,0,0.2); 
}

.btn-primary { background: var(--primary); color: white; }
.btn-success { background: var(--success); color: white; }
.btn-danger { background: var(--danger); color: white; }
.btn-warning { background: var(--warning); color: #333; }
.btn-info { background: var(--info); color: white; }
.btn-secondary { background: #6c757d; color: white; }
.btn-sm { padding: 0.5rem 1rem; font-size: 0.875rem; }

/* Tables */
.table-container { 
    background: white; 
    border-radius: 15px; 
    overflow: hidden; 
    box-shadow: 0 5px 20px rgba(0,0,0,0.1); 
}

.table-header { 
    padding: 1.5rem 2rem; 
    background: var(--light); 
    border-bottom: 1px solid #e9ecef; 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
}

table { 
    width: 100%; 
    border-collapse: collapse; 
}

th, td { 
    padding: 1rem 1.5rem; 
    text-align: left; 
    border-bottom: 1px solid #e9ecef; 
}

th { 
    background: var(--light); 
    font-weight: 600; 
    color: var(--dark); 
}

tbody tr:hover { 
    background: #f8f9fa; 
}

/* Messages */
.message { 
    padding: 1rem 1.5rem; 
    border-radius: 8px; 
    margin: 1rem 0; 
    display: none; 
    animation: slideIn 0.3s; 
}

.message.show { display: block; }

.message.success { 
    background: #d4edda; 
    color: #155724; 
    border-left: 4px solid var(--success); 
}

.message.error { 
    background: #f8d7da; 
    color: #721c24; 
    border-left: 4px solid var(--danger); 
}

.message.info { 
    background: #d1ecf1; 
    color: #0c5460; 
    border-left: 4px solid var(--info); 
}

/* Utilities */
.text-muted { 
    color: #6c757d; 
    font-size: 0.875rem; 
}

.loading { 
    display: inline-block; 
    width: 20px; 
    height: 20px; 
    border: 3px solid #f3f3f3; 
    border-top: 3px solid var(--primary); 
    border-radius: 50%; 
    animation: spin 1s linear infinite; 
}

@keyframes spin { 
    0% { transform: rotate(0deg); } 
    100% { transform: rotate(360deg); } 
}

/* Responsive Mobile */
@media (max-width: 768px) {
    .btn-menu-toggle {
        display: block;
    }
    
    .sidebar { 
        transform: translateX(-100%); 
        width: 250px;
        box-shadow: 2px 0 10px rgba(0,0,0,0.3);
    }
    
    .sidebar.mobile-open { 
        transform: translateX(0); 
    }
    
    .main-content { 
        margin-left: 0; 
    }
    
    .header {
        padding: 1rem;
    }
    
    .header h1 {
        font-size: 1.3rem;
    }
    
    .btn-logout {
        padding: 0.5rem 1rem;
        font-size: 0.875rem;
    }
    
    .btn-logout span {
        display: none;
    }
    
    .content-area {
        padding: 1rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .form-grid { 
        grid-template-columns: 1fr; 
        gap: 1rem;
    }
    
    .accordion-header {
        padding: 1rem;
    }
    
    .accordion-title {
        font-size: 1rem;
    }
    
    .accordion-body.active {
        padding: 1rem;
    }
    
    .btn-group {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .table-container {
        overflow-x: auto;
    }
    
    th, td {
        padding: 0.75rem;
        font-size: 0.875rem;
    }
}

/* Overlay para cerrar sidebar en móvil */
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 999;
}

.sidebar-overlay.active {
    display: block;
}

@media (max-width: 480px) {
    .login-container {
        padding: 2rem 1.5rem;
        margin: 1rem;
    }
    
    .accordion-title {
        font-size: 0.9rem;
    }
    
    .accordion-badge {
        font-size: 0.65rem;
        padding: 0.2rem 0.5rem;
    }
    
    .btn-logout {
        padding: 0.5rem 0.75rem;
    }
    
    .btn-logout i {
        margin: 0;
    }
}