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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: #f5f7fa;
    color: #333;
    line-height: 1.6;
}

/* Navbar */
.navbar {
    background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
    color: white;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: bold;
    background: linear-gradient(135deg, #3498db, #2ecc71);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-user {
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.nav-user span {
    padding: 0.5rem 1rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    font-size: 0.9rem;
}

.nav-user .btn {
    white-space: nowrap;
}

/* Estilos mejorados para botones en el navbar */
.nav-user a[href="logout.php"],
.nav-user a[href*="logout"] {
    background: linear-gradient(135deg, #e74c3c 0%, #c0392b 100%);
    color: white;
    position: relative;
    overflow: hidden;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.nav-user a[href="logout.php"]::before,
.nav-user a[href*="logout"]::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.nav-user a[href="logout.php"]:hover::before,
.nav-user a[href*="logout"]:hover::before {
    left: 100%;
}

.nav-user a[href="logout.php"]:hover,
.nav-user a[href*="logout"]:hover {
    background: linear-gradient(135deg, #c0392b 0%, #a93226 100%);
    box-shadow: 0 6px 20px rgba(231, 76, 60, 0.4);
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.4);
}

.nav-user a[href="dashboard.php"],
.nav-user a[href*="dashboard"] {
    background: linear-gradient(135deg, #3498db 0%, #2980b9 100%);
    color: white;
    position: relative;
    overflow: hidden;
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.nav-user a[href="dashboard.php"]::before,
.nav-user a[href*="dashboard"]::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s;
}

.nav-user a[href="dashboard.php"]:hover::before,
.nav-user a[href*="dashboard"]:hover::before {
    left: 100%;
}

.nav-user a[href="dashboard.php"]:hover,
.nav-user a[href*="dashboard"]:hover {
    background: linear-gradient(135deg, #2980b9 0%, #21618c 100%);
    box-shadow: 0 6px 20px rgba(52, 152, 219, 0.4);
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.4);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 2rem auto;
    padding: 0 2rem;
}

/* Cards */
.card {
    background: white;
    border-radius: 8px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1rem;
    text-decoration: none;
    display: inline-block;
    transition: all 0.3s ease;
    font-weight: 500;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.15);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background: #3498db;
    color: white;
}

.btn-primary:hover {
    background: #2980b9;
}

.btn-secondary {
    background: #95a5a6;
    color: white;
}

.btn-secondary:hover {
    background: #7f8c8d;
}

.btn-success {
    background: #27ae60;
    color: white;
}

.btn-success:hover {
    background: #229954;
}

.btn-danger {
    background: #e74c3c;
    color: white;
}

.btn-danger:hover {
    background: #c0392b;
    box-shadow: 0 4px 8px rgba(231, 76, 60, 0.3);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.btn-block {
    width: 100%;
    text-align: center;
}

/* Forms */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: #555;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 1rem;
    transition: border 0.3s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3498db;
}

.form-group small {
    display: block;
    margin-top: 0.25rem;
    color: #777;
    font-size: 0.85rem;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
}

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: 6px;
    margin-bottom: 1.5rem;
}

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

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

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

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

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 2rem;
}

.login-box {
    background: white;
    padding: 3rem;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.login-box h1 {
    text-align: center;
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.subtitle {
    text-align: center;
    color: #7f8c8d;
    margin-bottom: 2rem;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem;
}

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

.stat-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: bold;
    color: #2c3e50;
}

.stat-label {
    color: #7f8c8d;
    margin-top: 0.5rem;
}

/* Menu Grid */
.menu-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.menu-card {
    background: white;
    padding: 2rem;
    border-radius: 8px;
    text-align: center;
    text-decoration: none;
    color: inherit;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.menu-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.15);
}

.menu-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.menu-card h3 {
    margin-bottom: 0.5rem;
    color: #2c3e50;
}

.menu-card p {
    color: #7f8c8d;
    font-size: 0.9rem;
}

/* Tabs */
.tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.tab {
    padding: 1rem 2rem;
    background: white;
    border: none;
    border-radius: 8px 8px 0 0;
    cursor: pointer;
    text-decoration: none;
    color: #7f8c8d;
    transition: all 0.3s;
}

.tab.active {
    background: #3498db;
    color: white;
}

/* Documents */
.total-summary {
    text-align: center;
    padding: 1rem;
}

.total-summary h3 {
    color: #27ae60;
    font-size: 1.5rem;
}

.month-section {
    margin-bottom: 3rem;
}

.month-section h2 {
    background: #ecf0f1;
    padding: 1rem;
    border-radius: 6px;
    margin-bottom: 1.5rem;
}

.documents-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
}

.document-card {
    background: white;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.document-image {
    width: 100%;
    height: 200px;
    background: #ecf0f1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.document-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.pdf-icon {
    font-size: 2rem;
    color: #e74c3c;
}

.document-info {
    padding: 1.5rem;
}

.document-date {
    color: #7f8c8d;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
}

.document-amounts {
    margin: 1rem 0;
    padding: 1rem;
    background: #f8f9fa;
    border-radius: 6px;
}

.document-amounts div {
    margin-bottom: 0.5rem;
}

.document-total {
    font-weight: bold;
    font-size: 1.1rem;
    color: #27ae60;
}

/* Two Columns */
.two-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

@media (max-width: 768px) {
    .two-columns {
        grid-template-columns: 1fr;
    }
}

/* Tasks */
.tasks-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.task-card {
    background: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    border-left: 4px solid #3498db;
}

.task-card.completed {
    opacity: 0.6;
    border-left-color: #27ae60;
}

.task-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
}

.task-date {
    color: #7f8c8d;
    font-size: 0.9rem;
}

.badge {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: bold;
}

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

.task-card h3 {
    margin-bottom: 0.5rem;
    color: #2c3e50;
}

.task-card p {
    color: #555;
    margin-bottom: 1rem;
}

.task-actions {
    display: flex;
    gap: 0.5rem;
}

/* Trabajos */
.trabajos-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

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

.trabajo-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid #ecf0f1;
}

.trabajo-header h3 {
    color: #2c3e50;
    margin: 0;
}

.trabajo-fecha {
    color: #7f8c8d;
    font-size: 0.9rem;
}

.trabajo-descripcion {
    color: #555;
    margin-bottom: 1.5rem;
    line-height: 1.8;
}

.trabajo-actions {
    display: flex;
    justify-content: flex-end;
}

/* Responsive */
@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        gap: 1rem;
    }
    
    .nav-user {
        flex-direction: column;
        width: 100%;
    }
    
    .container {
        padding: 0 1rem;
    }
    
    .stats-grid,
    .menu-grid,
    .documents-grid {
        grid-template-columns: 1fr;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .tabs {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        text-align: center;
    }
    
    .btn-sm {
        padding: 0.75rem 1.25rem;
    }
}