:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #6366f1;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --dark-color: #1f2937;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--gray-100);
    color: var(--gray-900);
    line-height: 1.6;
}

/* Login Page */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    padding: 20px;
}

.login-box {
    background: white;
    border-radius: 16px;
    box-shadow: var(--shadow-xl);
    padding: 48px;
    width: 100%;
    max-width: 420px;
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-icon {
    font-size: 48px;
    color: var(--primary-color);
    margin-bottom: 16px;
}

.login-header h1 {
    font-size: 28px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 8px;
}

.login-header p {
    color: var(--gray-600);
    font-size: 16px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--gray-700);
    font-size: 14px;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--gray-300);
    border-radius: 8px;
    font-size: 16px;
    transition: all 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgb(37 99 235 / 0.1);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    text-decoration: none;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    width: 100%;
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-danger {
    background-color: #ff6b6b;
    color: white;
}

.btn-danger:hover {
    background-color: #ff5252;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-icon {
    padding: 8px;
    border-radius: 50%;
    background-color: var(--gray-200);
    color: var(--gray-700);
}

.btn-icon:hover {
    background-color: var(--gray-300);
}

.btn-logout {
    background-color: transparent;
    color: var(--gray-700);
    padding: 8px 16px;
}

.btn-logout:hover {
    background-color: var(--gray-100);
}

.login-footer {
    margin-top: 24px;
    text-align: center;
    color: var(--gray-600);
    font-size: 14px;
}

.login-footer code {
    background-color: var(--gray-100);
    padding: 2px 6px;
    border-radius: 4px;
    font-family: monospace;
    color: var(--primary-color);
}

/* Dashboard Layout */
.navbar {
    background-color: white;
    box-shadow: var(--shadow);
    padding: 16px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 20px;
    font-weight: 600;
    color: var(--gray-900);
}

.navbar-brand i {
    color: var(--primary-color);
}

.navbar-menu {
    display: flex;
    align-items: center;
    gap: 24px;
}

.user-name {
    font-weight: 500;
    color: var(--gray-700);
}

.dashboard {
    display: flex;
    min-height: calc(100vh - 64px);
}

.sidebar {
    width: 280px;
    background-color: white;
    box-shadow: var(--shadow);
    padding: 24px 0;
}

.menu {
    list-style: none;
}

.menu-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 24px;
    color: var(--gray-700);
    cursor: pointer;
    transition: all 0.2s;
    font-weight: 500;
}

.menu-item:hover {
    background-color: var(--gray-100);
    color: var(--primary-color);
}

.menu-item.active {
    background-color: var(--primary-color);
    color: white;
}

.menu-item i {
    width: 20px;
    text-align: center;
}

.main-content {
    flex: 1;
    padding: 32px;
    overflow-y: auto;
}

.content-section {
    display: none;
}

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

.content-section h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 24px;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.stat-card {
    background-color: white;
    border-radius: 12px;
    padding: 24px;
    box-shadow: var(--shadow);
    display: flex;
    gap: 20px;
    align-items: center;
}

.stat-icon {
    width: 64px;
    height: 64px;
    background-color: var(--gray-100);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.stat-icon i {
    font-size: 28px;
    color: var(--primary-color);
}

.stat-content h3 {
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-600);
    margin-bottom: 8px;
}

.stat-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--gray-900);
}

.stat-detail {
    font-size: 14px;
    color: var(--gray-600);
    margin-top: 4px;
}

.horario-info {
    font-size: 14px;
    color: var(--gray-700);
    line-height: 1.6;
}

/* Activity List */
.recent-activity {
    background-color: white;
    border-radius: 12px;
    padding: 24px;
    box-shadow: var(--shadow);
}

.recent-activity h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--gray-900);
}

.activity-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.activity-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background-color: var(--gray-50);
    border-radius: 8px;
    transition: all 0.2s;
}

.activity-item:hover {
    background-color: var(--gray-100);
}

.activity-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.activity-icon.entrada {
    background-color: var(--success-color);
    color: white;
}

.activity-icon.salida {
    background-color: var(--danger-color);
    color: white;
}

.activity-details {
    flex: 1;
}

.activity-details h4 {
    font-size: 16px;
    font-weight: 500;
    color: var(--gray-900);
}

.activity-details p {
    font-size: 14px;
    color: var(--gray-600);
}

/* Tables */
.filters {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
}

.filter-select {
    padding: 8px 16px;
    border: 1px solid var(--gray-300);
    border-radius: 8px;
    font-size: 14px;
    background-color: white;
    cursor: pointer;
}

.table-container {
    background-color: white;
    border-radius: 12px;
    box-shadow: var(--shadow);
    overflow: hidden;
}

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

.data-table thead {
    background-color: var(--gray-50);
}

.data-table th {
    padding: 16px;
    text-align: left;
    font-weight: 600;
    color: var(--gray-700);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.data-table td {
    padding: 16px;
    border-top: 1px solid var(--gray-200);
    color: var(--gray-700);
}

.data-table tbody tr:hover {
    background-color: var(--gray-50);
}

.loading {
    text-align: center;
    color: var(--gray-500);
    font-style: italic;
}

/* Calendar */
.calendar-controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    margin-bottom: 24px;
}

.calendar-controls h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--gray-900);
    min-width: 200px;
    text-align: center;
}

.calendar {
    background-color: white;
    border-radius: 12px;
    box-shadow: var(--shadow);
    padding: 24px;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
    max-width: 500px;
    margin: 0 auto;
}

.calendar-header {
    padding: 8px;
    text-align: center;
    font-weight: 600;
    color: var(--gray-700);
    font-size: 12px;
}

.calendar-day {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
    position: relative;
    padding: 8px;
}

.calendar-day:hover {
    background-color: var(--gray-100);
}

.calendar-day[onclick]:hover {
    background-color: var(--primary-color);
    color: white;
    transform: scale(1.05);
    box-shadow: var(--shadow-sm);
}

.calendar-day.other-month {
    color: var(--gray-400);
}

.calendar-day.weekend {
    background-color: var(--gray-50);
}

.calendar-day.today {
    background-color: var(--primary-color);
    color: white;
    font-weight: 600;
}

.calendar-day.worked {
    background-color: var(--success-color);
    color: white;
}

.calendar-day.worked.today {
    background-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--success-color);
}

.calendar-day.dia-libre {
    background-color: var(--warning-color);
    color: white;
}

.calendar-day.dia-festivo {
    background-color: #ff6b6b;
    color: white;
    font-weight: 600;
    position: relative;
}

.calendar-day.dia-festivo:hover {
    background-color: #ff5252;
    transform: scale(1.05);
}

.calendar-day.dia-libre.today {
    background-color: var(--warning-color);
    box-shadow: 0 0 0 3px var(--primary-color);
    font-weight: 700;
    position: relative;
}

.calendar-day.dia-festivo.today {
    background-color: #ff6b6b;
    box-shadow: 0 0 0 3px var(--primary-color);
    font-weight: 700;
}

.calendar-day.dia-libre.today::after {
    content: '';
    position: absolute;
    bottom: 2px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 6px;
    background-color: var(--primary-color);
    border-radius: 50%;
}

.calendar {
    background-color: white;
    border-radius: 12px;
    padding: 20px;
    box-shadow: var(--shadow-sm);
    margin: 20px 0;
}

.calendar-legend {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--gray-700);
}

.legend-color {
    width: 16px;
    height: 16px;
    border-radius: 4px;
}

.legend-color.worked {
    background-color: var(--success-color);
}

.legend-color.today {
    background-color: var(--primary-color);
}

.legend-color.weekend {
    background-color: var(--gray-100);
}

.legend-color.dia-libre {
    background-color: var(--warning-color);
}

.legend-color.dia-festivo {
    background-color: #ff6b6b;
}

/* Charts */
.chart-container {
    background-color: white;
    border-radius: 12px;
    box-shadow: var(--shadow);
    padding: 24px;
    margin-bottom: 24px;
}

.stats-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
}

.summary-card {
    background-color: white;
    border-radius: 12px;
    box-shadow: var(--shadow);
    padding: 24px;
    text-align: center;
}

.summary-card h4 {
    font-size: 14px;
    font-weight: 500;
    color: var(--gray-600);
    margin-bottom: 8px;
}

.summary-card p {
    font-size: 28px;
    font-weight: 700;
    color: var(--gray-900);
}

/* Page transitions */
.page {
    display: none;
}

.page.active {
    display: block;
}

/* Responsive */
@media (max-width: 768px) {
    .dashboard {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        padding: 16px 0;
    }
    
    .main-content {
        padding: 16px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .navbar-menu {
        flex-direction: column;
        gap: 12px;
    }
    
    .calendar {
        padding: 15px;
    }
    
    .calendar-grid {
        gap: 3px;
        max-width: 100%;
    }
    
    .calendar-day {
        font-size: 11px;
        padding: 6px;
    }
    
    .calendar-header {
        font-size: 11px;
        padding: 6px;
    }
    
    .calendar-legend {
        gap: 15px;
    }
    
    .legend-item {
        font-size: 11px;
    }
    
    .legend-color {
        width: 14px;
        height: 14px;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.content-section.active {
    animation: fadeIn 0.3s ease-out;
}

/* Status indicators */
.status-online {
    color: var(--success-color);
}

.status-offline {
    color: var(--danger-color);
}

.status-dia-libre {
    color: var(--warning-color);
    font-weight: 500;
}

/* Toast notifications */
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background-color: var(--gray-900);
    color: white;
    padding: 16px 24px;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 1000;
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.toast.error {
    background-color: var(--danger-color);
}

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

.toast.warning {
    background-color: var(--warning-color);
}

/* Admin styles */
.admin-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.admin-employees {
    background-color: white;
    border-radius: 12px;
    padding: 24px;
    box-shadow: var(--shadow);
}

.admin-employees h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--gray-900);
}

/* Modal styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-content {
    background-color: white;
    border-radius: 12px;
    box-shadow: var(--shadow-xl);
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px;
    border-bottom: 1px solid var(--gray-200);
}

.modal-header h3 {
    font-size: 24px;
    font-weight: 600;
    color: var(--gray-900);
}

.modal-close {
    background: none;
    border: none;
    font-size: 24px;
    color: var(--gray-500);
    cursor: pointer;
    padding: 4px;
    transition: color 0.2s;
}

.modal-close:hover {
    color: var(--gray-700);
}

.modal-body {
    padding: 24px;
    overflow-y: auto;
    flex: 1;
}

#employeeDetails {
    margin-bottom: 32px;
}

#employeeDetails .detail-row {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--gray-100);
}

#employeeDetails .detail-label {
    font-weight: 500;
    color: var(--gray-600);
}

#employeeDetails .detail-value {
    color: var(--gray-900);
}

.btn-view-details {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-view-details:hover {
    background-color: var(--primary-dark);
    transform: translateY(-1px);
}

.btn-delete {
    background-color: var(--danger-color);
    color: white;
    border: none;
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
    margin-left: 8px;
}

.btn-delete:hover {
    background-color: #dc2626;
    transform: translateY(-1px);
}

.action-buttons {
    display: flex;
    gap: 8px;
}

.admin-only {
    display: none;
}

.admin-user .admin-only {
    display: flex !important;
}

/* Clock and Fichaje Section */
.clock-section {
    background-color: white;
    border-radius: 12px;
    padding: 32px;
    box-shadow: var(--shadow);
    margin-bottom: 24px;
    text-align: center;
}

.clock-container {
    max-width: 600px;
    margin: 0 auto;
}

.clock-display {
    margin-bottom: 32px;
}

.clock-time {
    font-size: 64px;
    font-weight: 700;
    color: var(--gray-900);
    line-height: 1;
    margin-bottom: 8px;
    font-feature-settings: "tnum";
    letter-spacing: -2px;
}

.clock-date {
    font-size: 20px;
    color: var(--gray-600);
    font-weight: 500;
}

.fichaje-buttons {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 16px;
}

.btn-fichar, .btn-desfichar {
    padding: 16px 32px;
    font-size: 18px;
    font-weight: 600;
    border-radius: 12px;
    min-width: 280px;
    transition: all 0.3s;
    box-shadow: var(--shadow-md);
}

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

.btn-fichar:hover {
    background-color: #059669;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-desfichar:hover {
    background-color: #dc2626;
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.tiempo-trabajado {
    background-color: var(--gray-100);
    padding: 16px 24px;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.tiempo-trabajado small {
    color: var(--gray-600);
    font-size: 14px;
    font-weight: 500;
}

.tiempo-trabajado span {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    font-feature-settings: "tnum";
}

.btn-dia-libre {
    background-color: var(--warning-color);
    color: white;
    padding: 12px 24px;
    font-size: 16px;
    font-weight: 500;
    border-radius: 10px;
    min-width: 220px;
    transition: all 0.3s;
    margin-top: 16px;
}

.btn-dia-libre:hover {
    background-color: #d97706;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-dia-libre.active {
    background-color: var(--gray-600);
}

.btn-dia-libre.active:hover {
    background-color: var(--gray-700);
}

/* Día libre tags in admin panel */
.dia-libre-tag {
    display: inline-block;
    background-color: var(--warning-color);
    color: white;
    padding: 4px 12px;
    border-radius: 16px;
    font-size: 14px;
    margin: 2px;
    position: relative;
}

.btn-delete-dia-libre {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    padding: 0 0 0 8px;
    font-size: 12px;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.btn-delete-dia-libre:hover {
    opacity: 1;
}

.text-muted {
    color: var(--gray-500);
}