:root {
    --primary: #2563eb;
    --primary-dark: #1e40af;
    --secondary: #64748b;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #06b6d4;
    
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --text-tertiary: #94a3b8;
    
    --border: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    
    --sidebar-width: 260px;
    --header-height: 70px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 14px;
    color: var(--text-primary);
    background: var(--bg-secondary);
    line-height: 1.5;
}

.text-muted {
    color: var(--text-tertiary);
    font-size: 0.9rem;
}

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

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-primary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 100;
    transition: width 0.3s ease, min-width 0.3s ease;
}

.sidebar-header {
    padding: 12px 5px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    font-size: 32px;
}

.logo-image {
    max-width: 100% !important;
    max-height: 100% !important;
    width: auto !important;
    height: auto !important;
    object-fit: contain;
    border-radius: 4px;
}

.logo-text {
    font-size: 18px;
    font-weight: 700;
    color: var(--primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 150px;
}

.sidebar-nav {
    flex: 1;
    padding: 20px 0;
    overflow-y: auto;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 20px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.nav-item.nav-subitem {
    padding-left: 52px;
    font-size: 14px;
}

.nav-item.nav-subitem .nav-icon {
    font-size: 16px;
    width: 20px;
}

a.nav-item:hover {
    background: var(--bg-tertiary);
    color: var(--primary);
    cursor: pointer;
}

div.nav-item {
    font-weight: 600;
    color: var(--text-primary);
    cursor: default;
    opacity: 0.9;
}

.nav-item.active {
    background: var(--bg-tertiary);
    color: var(--primary);
    border-left-color: var(--primary);
    font-weight: 600;
}

/* Secciones de navegación */
.nav-section-wrapper {
    position: relative;
}

.nav-subsection {
    overflow: hidden;
}

.nav-icon {
    font-size: 20px;
    width: 24px;
    text-align: center;
}

.sidebar-footer {
    padding: 20px;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--primary);
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 16px;
}

.user-details {
    flex: 1;
}

.user-name {
    font-weight: 600;
    font-size: 13px;
    color: var(--text-primary);
}

.user-role {
    font-size: 12px;
    color: var(--text-tertiary);
}

.btn-logout {
    padding: 8px;
    border: none;
    background: transparent;
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 20px;
    transition: color 0.2s;
    text-decoration: none;
}

.btn-logout:hover {
    color: var(--danger);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    transition: margin-left 0.3s ease;
}

/* ── Toggle sidebar desktop ── */
.btn-sidebar-collapse {
    display: flex;
    align-items: center;
    justify-content: center;
    position: fixed;
    top: 20px;
    left: calc(var(--sidebar-width) - 13px);
    z-index: 200;
    width: 26px;
    height: 26px;
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 50%;
    cursor: pointer;
    font-size: 15px;
    line-height: 1;
    color: var(--text-secondary);
    box-shadow: 0 2px 6px rgba(0,0,0,0.12);
    transition: left 0.3s ease, background 0.2s, color 0.2s;
    user-select: none;
    padding: 0;
}
.btn-sidebar-collapse:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

/* Estado colapsado (desktop) */
.app-container.sidebar-collapsed .sidebar {
    width: 0;
    min-width: 0;
    overflow: hidden;
    border-right: none;
}
.app-container.sidebar-collapsed .btn-sidebar-collapse {
    left: 8px;
}
.app-container.sidebar-collapsed .main-content {
    margin-left: 0;
}

.page-header {
    height: auto;
    background: var(--bg-primary);
    border: none;
    border-radius: 0;
    padding: 24px 30px;
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 90;
    gap: 20px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
    border-bottom: 1px solid var(--border);
}

.page-header > div:first-child {
    flex: 1;
}

.page-header h1 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 0;
    letter-spacing: -0.5px;
}

.page-header p {
    margin: 4px 0 0 0 !important;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

/* Language selector (sidebar) */
.nav-lang-wrapper {
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: default;
}

.nav-lang-select {
    flex: 1;
    padding: 4px 8px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg-primary);
    color: var(--text-primary);
    font-size: 13px;
    font-family: inherit;
    cursor: pointer;
    outline: none;
    transition: border-color 0.2s;
}

.nav-lang-select:hover,
.nav-lang-select:focus {
    border-color: var(--primary);
}

.btn-notification {
    position: relative;
    padding: 8px;
    background: transparent;
    border: none;
    cursor: pointer;
    font-size: 24px;
    color: var(--text-secondary);
    transition: color 0.2s;
}

.btn-notification:hover {
    color: var(--primary);
}

.notification-badge {
    position: absolute;
    top: 4px;
    right: 4px;
    background: var(--danger);
    color: white;
    font-size: 10px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 10px;
    min-width: 18px;
    text-align: center;
}

.current-time {
    text-align: right;
    line-height: 1.3;
}

.current-time strong {
    font-size: 16px;
    color: var(--text-primary);
}

.current-time small {
    font-size: 12px;
    color: var(--text-tertiary);
}

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

/* Cards */
.card {
    background: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    margin-bottom: 30px;
}

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

.card-header h2 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.card-body {
    padding: 20px;
}

/* Buttons - Modern SaaS Style */
.btn {
    padding: 10px 18px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    letter-spacing: -0.3px;
    white-space: nowrap;
    user-select: none;
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-primary {
    background: var(--primary);
    color: white;
    box-shadow: 0 1px 2px rgba(37, 99, 235, 0.15);
}

.btn-primary:hover:not(:disabled) {
    background: var(--primary-dark);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
    transform: translateY(-1px);
}

.btn-primary:active:not(:disabled) {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.btn-secondary:hover:not(:disabled) {
    background: #e8eef7;
    border-color: #cbd5e1;
}

.btn-success {
    background: var(--success);
    color: white;
    box-shadow: 0 1px 2px rgba(16, 185, 129, 0.15);
}

.btn-success:hover:not(:disabled) {
    background: #059669;
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.25);
    transform: translateY(-1px);
}

.btn-danger {
    background: var(--danger);
    color: white;
    box-shadow: 0 1px 2px rgba(239, 68, 68, 0.15);
}

.btn-danger:hover:not(:disabled) {
    background: #dc2626;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.25);
    transform: translateY(-1px);
}

.btn-warning {
    background: var(--warning);
    color: white;
    box-shadow: 0 1px 2px rgba(245, 158, 11, 0.15);
}

.btn-warning:hover:not(:disabled) {
    background: #d97706;
    box-shadow: 0 4px 12px rgba(245, 158, 11, 0.25);
    transform: translateY(-1px);
}

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
}

.btn-lg {
    padding: 12px 28px;
    font-size: 15px;
}

.btn-refresh {
    background: transparent;
    border: 1px solid var(--border);
    padding: 6px 12px;
    cursor: pointer;
    border-radius: 6px;
    font-size: 18px;
    transition: all 0.2s;
}

.btn-refresh:hover {
    background: var(--bg-tertiary);
}

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

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

.data-table th {
    padding: 12px;
    text-align: left;
    font-weight: 600;
    font-size: 13px;
    color: var(--text-secondary);
    border-bottom: 2px solid var(--border);
}

.data-table td {
    padding: 12px;
    border-bottom: 1px solid var(--border);
}

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

/* Status badges */
.badge {
    padding: 6px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    white-space: nowrap;
}

.badge-success {
    background: rgba(16, 185, 129, 0.1);
    color: #059669;
}

.badge-success:hover {
    background: rgba(16, 185, 129, 0.15);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.1);
    color: #d97706;
}

.badge-warning:hover {
    background: rgba(245, 158, 11, 0.15);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.1);
    color: #dc2626;
}

.badge-danger:hover {
    background: rgba(239, 68, 68, 0.15);
}

.badge-info {
    background: rgba(6, 182, 212, 0.1);
    color: #0891b2;
}

.badge-info:hover {
    background: rgba(6, 182, 212, 0.15);
}

.badge-primary {
    background: rgba(59, 130, 246, 0.1);
    color: #2563eb;
}

.badge-primary:hover {
    background: rgba(59, 130, 246, 0.15);
}

.badge-dark {
    background: rgba(55, 65, 81, 0.1);
    color: #1f2937;
}

.badge-dark:hover {
    background: rgba(55, 65, 81, 0.15);
}

.badge-secondary {
    background: rgba(107, 114, 128, 0.1);
    color: #6b7280;
}

.badge-secondary:hover {
    background: rgba(107, 114, 128, 0.15);
}

/* Toast notifications */
.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--text-primary);
    color: white;
    padding: 16px 24px;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s;
    z-index: 1000;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast-success { background: var(--success); }
.toast-warning { background: var(--warning); }
.toast-danger { background: var(--danger); }
.toast-info { background: var(--info); }

/* Loading spinner */
.spinner {
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-state {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
}

/* Notification Panel */
.notification-panel {
    position: fixed;
    top: 0;
    right: -420px;
    width: 420px;
    height: 100vh;
    background: var(--bg-primary);
    border-left: 1px solid var(--border);
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.15);
    transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 200;
    display: flex;
    flex-direction: column;
}

.notification-panel.open {
    right: 0;
}

.notification-header {
    padding: 20px;
    border-bottom: 2px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.notification-header h3 {
    font-size: 18px;
    font-weight: 700;
    margin: 0;
}

.notification-header-actions {
    display: flex;
    gap: 8px;
    align-items: center;
}

.notification-actions-bar {
    display: flex;
    gap: 10px;
    padding: 12px;
    background: #f8f9fa;
    border-bottom: 1px solid var(--border);
}

.btn-mark-all-read,
.btn-delete-all {
    flex: 1;
    background: white;
    border: 1px solid #e2e8f0;
    color: #334155;
    font-size: 13px;
    font-weight: 600;
    padding: 10px 16px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.btn-mark-all-read:hover {
    background: #10b981;
    color: white;
    border-color: #10b981;
    transform: translateY(-1px);
    box-shadow: 0 4px 6px rgba(16, 185, 129, 0.2);
}

.btn-delete-all:hover {
    background: #ef4444;
    color: white;
    border-color: #ef4444;
    transform: translateY(-1px);
    box-shadow: 0 4px 6px rgba(239, 68, 68, 0.2);
}

.btn-close-panel {
    background: none;
    border: none;
    font-size: 20px;
    cursor: pointer;
    padding: 4px;
    color: white;
    transition: transform 0.2s;
}

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

.notification-list {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
    background: #f8f9fa;
}

.notification-item {
    display: flex;
    gap: 12px;
    padding: 14px;
    background: white;
    border-radius: 10px;
    margin-bottom: 10px;
    border-left: 4px solid var(--info);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    transition: all 0.2s;
    animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.notification-item:hover {
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    transform: translateX(-2px);
}

.notification-item.unread {
    background: #f0f7ff;
    border-left-color: #3b82f6;
}

.notification-item.read {
    opacity: 0.7;
    border-left-color: #cbd5e1;
}

.notification-icon {
    font-size: 28px;
    line-height: 1;
    flex-shrink: 0;
}

.notification-content {
    flex: 1;
    min-width: 0;
}

.notification-title {
    font-weight: 700;
    font-size: 14px;
    margin-bottom: 4px;
    color: var(--text-primary);
}

.notification-message {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 6px;
    line-height: 1.4;
}

.notification-time {
    font-size: 11px;
    color: var(--text-tertiary);
    font-weight: 500;
}

.notification-actions {
    display: flex;
    flex-direction: column;
    gap: 4px;
    align-items: center;
}

.btn-mark-read,
.btn-delete-notif {
    background: none;
    border: none;
    font-size: 16px;
    cursor: pointer;
    padding: 6px;
    border-radius: 4px;
    transition: all 0.2s;
    line-height: 1;
}

.btn-mark-read {
    color: #10b981;
}

.btn-mark-read:hover {
    background: #d1fae5;
    transform: scale(1.1);
}

.btn-delete-notif {
    color: #ef4444;
}

.btn-delete-notif:hover {
    background: #fee2e2;
    transform: scale(1.1);
}

.no-notifications {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-tertiary);
    font-size: 14px;
}

.no-notifications::before {
    content: '🔕';
    display: block;
    font-size: 48px;
    margin-bottom: 12px;
    opacity: 0.5;
}

/* Monitor Styles */
.monitor-container {
    padding: 20px;
}

.monitor-controls {
    display: flex;
    gap: 20px;
    align-items: center;
    margin-bottom: 30px;
    flex-wrap: wrap;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.filter-group label {
    font-weight: 600;
    color: var(--text-secondary);
}

.filter-group select {
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--bg-primary);
    font-size: 14px;
}

.status-legend {
    display: flex;
    gap: 15px;
    margin-left: auto;
}

.legend-item {
    font-size: 13px;
    color: var(--text-secondary);
}

.machines-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.machine-card {
    background: var(--bg-primary);
    border-radius: 12px;
    padding: 20px;
    box-shadow: var(--shadow);
    transition: all 0.2s;
    border: 3px solid transparent;
}

.machine-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.machine-card[data-status="disponible"] {
    border-color: var(--success);
}

.machine-card[data-status="reservado"] {
    border-color: #9ca3af;
    background: #f9fafb;
}

.machine-card[data-status="en_uso"] {
    border-color: var(--info);
}

.machine-card[data-status="fuera_servicio"] {
    border-color: var(--danger);
}

.machine-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.machine-type-icon {
    font-size: 32px;
}

.machine-status-badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.machine-card[data-status="disponible"] .machine-status-badge {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
}

.machine-card[data-status="reservado"] .machine-status-badge {
    background: #f3f4f6;
    color: #6b7280;
    border: 1px solid #9ca3af;
}

.machine-card[data-status="en_uso"] .machine-status-badge {
    background: rgba(6, 182, 212, 0.1);
    color: var(--info);
}

.machine-card[data-status="fuera_servicio"] .machine-status-badge {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
}

.machine-name {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.machine-location {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 15px;
}

.machine-body {
    margin-bottom: 15px;
}

.machine-timer {
    background: var(--bg-tertiary);
    padding: 12px;
    border-radius: 8px;
    text-align: center;
    margin-bottom: 12px;
}

.machine-timer.hidden {
    display: none;
}

.timer-label {
    font-size: 11px;
    color: var(--text-tertiary);
    text-transform: uppercase;
    margin-bottom: 4px;
}

.timer-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--info);
    font-family: 'Courier New', monospace;
}

.machine-info {
    margin-bottom: 12px;
}

.info-row {
    display: flex;
    justify-content: space-between;
    font-size: 13px;
    margin-bottom: 6px;
}

.info-label {
    color: var(--text-secondary);
}

.info-value {
    font-weight: 600;
    color: var(--text-primary);
}

.machine-price {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    margin-top: 8px;
}

.machine-footer {
    display: flex;
    gap: 10px;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--border);
}

.btn-action {
    flex: 1;
    padding: 8px 12px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-action:hover {
    background: var(--primary-dark);
}

.btn-toggle {
    padding: 8px 12px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-toggle:hover {
    background: #e8eef7;
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    animation: fadeIn 0.2s;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: white;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    max-width: 500px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp 0.3s;
}

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

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

.modal-header h3 {
    margin: 0;
    font-size: 18px;
    color: var(--text-primary);
}

.btn-close {
    background: none;
    border: none;
    font-size: 28px;
    color: var(--text-secondary);
    cursor: pointer;
    line-height: 1;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 6px;
    transition: all 0.2s;
}

.btn-close:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.modal-body {
    padding: 20px;
}

.modal-body label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.modal-body .form-control {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.2s;
}

.modal-body .form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.modal-footer {
    display: flex;
    gap: 10px;
    padding: 20px;
    border-top: 1px solid var(--border);
    justify-content: flex-end;
}

.modal-footer .btn {
    padding: 10px 20px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.modal-footer .btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.modal-footer .btn-secondary:hover {
    background: #e2e8f0;
}

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

.modal-footer .btn-primary:hover {
    background: var(--primary-dark);
}

/* Hamburger button */
.hamburger-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    padding: 8px;
    background: var(--bg-primary);
    border: 2px solid var(--primary);
    border-radius: 8px;
    cursor: pointer;
    flex-shrink: 0;
    transition: all 0.2s;
    -webkit-tap-highlight-color: transparent;
}

.hamburger-btn:hover,
.hamburger-btn:active {
    background: var(--primary);
}

.hamburger-btn:hover span,
.hamburger-btn:active span {
    background: white;
}

.hamburger-btn span {
    display: block;
    width: 100%;
    height: 3px;
    background: var(--primary);
    border-radius: 2px;
    transition: all 0.3s;
}

/* Sidebar overlay */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.4);
    z-index: 99;
    backdrop-filter: blur(2px);
}

/* Prevent body scroll when sidebar open */
body.sidebar-open {
    overflow: hidden;
}

/* Responsive */
@media (max-width: 1024px) {
    /* Ocultar toggle desktop en móvil/tablet */
    .btn-sidebar-collapse {
        display: none !important;
    }
    /* Logo más grande en móvil */
    .sidebar-header {
        padding: 18px 12px;
    }
    /* Resetear colapso desktop en móvil */
    .app-container.sidebar-collapsed .sidebar {
        transform: translateX(-100%);
    }
    .app-container.sidebar-collapsed .main-content {
        margin-left: 0;
    }
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .machines-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    }

    .hamburger-btn {
        display: flex !important;
    }

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

    .page-header {
        padding: 16px 20px;
    }

    .page-header h1 {
        font-size: 20px;
    }

    .page-content {
        padding: 16px 20px;
    }
}

@media (max-width: 768px) {
    .page-header {
        padding: 12px 16px;
        flex-wrap: wrap;
        gap: 8px;
    }

    .page-header h1 {
        font-size: 18px;
    }

    .header-actions {
        gap: 10px;
    }

    .current-time {
        display: none;
    }

    .page-content {
        padding: 12px;
    }

    .machines-grid {
        grid-template-columns: 1fr;
    }

    .sidebar-footer {
        padding: 12px 16px;
    }

    .sidebar-footer .user-details {
        display: none;
    }
}

@media (max-width: 480px) {
    .page-header h1 {
        font-size: 16px;
    }

    .page-content {
        padding: 8px;
    }
}

/* Responsive tables wrapper */
.table-scroll {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}