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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f4f7f9;
    color: #333;
}

/* Login Page */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 20px;
}

.login-box {
    background: white;
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.2);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h1 {
    color: #667eea;
    font-size: 28px;
    margin-bottom: 10px;
}

.login-header p {
    color: #666;
    font-size: 14px;
}

.login-logo {
    max-width: 280px;
    width: 100%;
    height: auto;
    margin-bottom: 20px;
    display: block;
    margin-left: auto;
    margin-right: auto;
}

.alert {
    padding: 12px 15px;
    border-radius: 5px;
    margin-bottom: 20px;
}

.alert-error {
    background: #fee;
    color: #c33;
    border: 1px solid #fcc;
}

.alert-success {
    background: #efe;
    color: #3c3;
    border: 1px solid #cfc;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #555;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 14px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #667eea;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #5568d3;
}

.btn-success {
    background: #28a745;
    color: white;
}

.btn-danger {
    background: #dc3545;
    color: white;
}

.btn-block {
    width: 100%;
}

.login-footer {
    text-align: center;
    margin-top: 20px;
    color: #999;
}

/* Dashboard Layout */
.dashboard {
    display: flex;
    min-height: calc(100vh - 80px); /* Restar altura aproximada del footer */
}

.sidebar {
    width: 250px;
    background: #2c3e50;
    color: white;
    padding: 20px 0;
}

.sidebar-header {
    padding: 0 20px 20px;
    border-bottom: 1px solid #34495e;
}

.sidebar-header h2 {
    font-size: 20px;
    margin-bottom: 5px;
}

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

.sidebar-nav li a {
    display: block;
    padding: 12px 20px;
    color: #ecf0f1;
    text-decoration: none;
    transition: all 0.3s;
}

.sidebar-nav li a:hover {
    background: #34495e;
    padding-left: 30px;
}

.sidebar-nav li a i {
    width: 20px;
    text-align: center;
    margin-right: 10px;
    font-size: 16px;
}

.sidebar-nav li a.active {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    font-weight: 600;
    border-left: 4px solid #fff;
}

.main-content {
    flex: 1;
    padding: 30px;
}

.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 1px solid #ddd;
}

.topbar h1 {
    font-size: 24px;
    color: #2c3e50;
}

.user-menu {
    display: flex;
    align-items: center;
    gap: 15px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.stat-card-link {
    text-decoration: none;
    color: inherit;
    display: block;
    transition: all 0.3s ease;
    cursor: pointer;
}

.stat-card-link:hover {
    transform: translateY(-5px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
}

.stat-card-link h3 {
    color: #555;
}

.stat-card-link .stat-value {
    color: #333;
}

.stat-card-link small {
    color: #777;
}

.stat-card h3 {
    font-size: 14px;
    color: #666;
    margin-bottom: 10px;
}

.stat-card .stat-value {
    font-size: 32px;
    font-weight: bold;
    color: #667eea;
}

.card {
    background: white;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    margin-bottom: 20px;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.card-header h2 {
    font-size: 20px;
    color: #2c3e50;
}

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

table thead {
    background: #f8f9fa;
}

table th,
table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #dee2e6;
}

table th {
    font-weight: 600;
    color: #495057;
}

table tr:hover {
    background: #f8f9fa;
}

.badge {
    padding: 4px 8px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
}

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

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

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

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    z-index: 1000;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: white;
    padding: 30px;
    border-radius: 8px;
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
}

/* Footer */
.app-footer {
    background: #2c3e50;
    color: #ecf0f1;
    padding: 20px;
    text-align: center;
    font-size: 13px;
    border-top: 3px solid #667eea;
    width: 100%;
}

.app-footer a {
    color: #667eea;
    text-decoration: none;
    font-weight: 600;
    transition: color 0.3s;
}

.app-footer a:hover {
    color: #764ba2;
    text-decoration: underline;
}

.app-footer p {
    margin: 5px 0;
}

/* Footer para páginas sin dashboard */
body {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Footer para página de login */
.login-page {
    flex-direction: column;
}

.login-page .app-footer {
    margin-top: auto;
}