/* Custom CSS for WhatsApp Gateway Frontend */

:root {
    --primary-color: #25D366;
    --secondary-color: #075E54;
    --accent-color: #128C7E;
    --dark-color: #1f2937;
    --light-color: #f8fafc;
    --border-color: #e5e7eb;
    --text-muted: #6b7280;
    --sidebar-width: 280px;
    --navbar-height: 60px;
    --danger-color: #dc3545;
    --warning-color: #ffc107;
    --info-color: #0dcaf0;
    --success-color: #198754;
}

/* Base Styles */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--light-color);
    line-height: 1.6;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    backdrop-filter: blur(2px);
    transition: opacity 0.3s ease;
    opacity: 0;
    visibility: hidden;
}

.loading-overlay.show {
    opacity: 1;
    visibility: visible;
}

/* Navbar Customization */
.navbar {
    height: var(--navbar-height);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%) !important;
}

.navbar-brand {
    font-weight: 600;
    font-size: 1.25rem;
}

/* Sidebar */
/* DISABLED - Using modern-header.css instead: .sidebar { */
/* DISABLED - Using modern-header.css instead:     position: fixed; */
/* DISABLED - Using modern-header.css instead:     top: 0; */
/* DISABLED - Using modern-header.css instead:     left: 0; */
/* DISABLED - Using modern-header.css instead:     width: var(--sidebar-width); */
/* DISABLED - Using modern-header.css instead:     height: 100vh; */
/* DISABLED - Using modern-header.css instead:     background: #fff; */
/* DISABLED - Using modern-header.css instead:     border-right: 1px solid var(--border-color); */
/* DISABLED - Using modern-header.css instead:     transform: translateX(-100%); */
/* DISABLED - Using modern-header.css instead:     transition: transform 0.3s ease; */
/* DISABLED - Using modern-header.css instead:     z-index: 1000; */
/* DISABLED - Using modern-header.css instead:     display: flex; */
/* DISABLED - Using modern-header.css instead:     flex-direction: column; */
/* DISABLED - Using modern-header.css instead:     box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1); */
/* DISABLED - Using modern-header.css instead: } */
/* DISABLED - Using modern-header.css instead:  */
/* DISABLED - Using modern-header.css instead: .sidebar.show { */
/* DISABLED - Using modern-header.css instead:     transform: translateX(0); */
/* DISABLED - Using modern-header.css instead: } */
/* DISABLED - Using modern-header.css instead:  */
/* DISABLED - Using modern-header.css instead: .sidebar-header { */
/* DISABLED - Using modern-header.css instead:     padding: 1.5rem 1rem; */
/* DISABLED - Using modern-header.css instead:     border-bottom: 1px solid var(--border-color); */
/* DISABLED - Using modern-header.css instead:     background: linear-gradient(135deg, var(--primary-color), var(--accent-color)); */
/* DISABLED - Using modern-header.css instead:     color: white; */
/* DISABLED - Using modern-header.css instead: } */
/* DISABLED - Using modern-header.css instead:  */
/* DISABLED - Using modern-header.css instead: .sidebar-menu { */
/* DISABLED - Using modern-header.css instead:     flex: 1; */
/* DISABLED - Using modern-header.css instead:     overflow-y: auto; */
/* DISABLED - Using modern-header.css instead:     padding: 1rem 0; */
/* DISABLED - Using modern-header.css instead: } */
/* DISABLED - Using modern-header.css instead:  */
/* DISABLED - Using modern-header.css instead: .sidebar .nav-link { */
/* DISABLED - Using modern-header.css instead:     display: flex; */
/* DISABLED - Using modern-header.css instead:     align-items: center; */
/* DISABLED - Using modern-header.css instead:     padding: 0.75rem 1.5rem; */
/* DISABLED - Using modern-header.css instead:     color: var(--dark-color); */
/* DISABLED - Using modern-header.css instead:     border-radius: 0; */
/* DISABLED - Using modern-header.css instead:     margin: 0 0.5rem; */
/* DISABLED - Using modern-header.css instead:     transition: all 0.2s ease; */
/* DISABLED - Using modern-header.css instead:     text-decoration: none; */
/* DISABLED - Using modern-header.css instead: } */
/* DISABLED - Using modern-header.css instead:  */
/* DISABLED - Using modern-header.css instead: .sidebar .nav-link:hover { */
/* DISABLED - Using modern-header.css instead:     background-color: rgba(37, 211, 102, 0.1); */
/* DISABLED - Using modern-header.css instead:     color: var(--primary-color); */
/* DISABLED - Using modern-header.css instead:     transform: translateX(5px); */
/* DISABLED - Using modern-header.css instead: } */
/* DISABLED - Using modern-header.css instead:  */
/* DISABLED - Using modern-header.css instead: .sidebar .nav-link.active { */
/* DISABLED - Using modern-header.css instead:     background: linear-gradient(135deg, var(--primary-color), var(--accent-color)); */
/* DISABLED - Using modern-header.css instead:     color: white; */
/* DISABLED - Using modern-header.css instead:     box-shadow: 0 2px 8px rgba(37, 211, 102, 0.3); */
/* DISABLED - Using modern-header.css instead: } */
/* DISABLED - Using modern-header.css instead:  */
/* DISABLED - Using modern-header.css instead: .sidebar .nav-link i { */
/* DISABLED - Using modern-header.css instead:     font-size: 1.1rem; */
/* DISABLED - Using modern-header.css instead:     width: 20px; */
/* DISABLED - Using modern-header.css instead:     margin-right: 0.75rem; */
/* DISABLED - Using modern-header.css instead:     text-align: center; */
/* DISABLED - Using modern-header.css instead: } */
/* DISABLED - Using modern-header.css instead:  */
/* DISABLED - Using modern-header.css instead: .sidebar-footer { */
/* DISABLED - Using modern-header.css instead:     border-top: 1px solid var(--border-color); */
/* DISABLED - Using modern-header.css instead:     padding: 1rem; */
/* DISABLED - Using modern-header.css instead:     text-align: center; */
/* DISABLED - Using modern-header.css instead:     background-color: var(--light-color); */
/* DISABLED - Using modern-header.css instead: } */

/* DISABLED - Using sidebar-modern.css: /* Main Content */ */
/* DISABLED - Using sidebar-modern.css: .main-content { */
/* DISABLED - Using sidebar-modern.css:     padding: 1rem; */
/* DISABLED - Using sidebar-modern.css:     min-height: 100vh; */
/* DISABLED - Using sidebar-modern.css: } */
/* DISABLED - Using sidebar-modern.css:  */
/* DISABLED - Using sidebar-modern.css:     margin-top: 0; */
/* DISABLED - Using sidebar-modern.css: } */
/* DISABLED - Using sidebar-modern.css:  */
/* DISABLED - Using sidebar-modern.css: .main-content.with-sidebar { */
/* DISABLED - Using sidebar-modern.css:     margin-left: 0; */
/* DISABLED - Using sidebar-modern.css:     transition: margin-left 0.3s ease; */
/* DISABLED - Using sidebar-modern.css: } */

/* Cards */
.card {
    border: none;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    margin-bottom: 1.5rem;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
}

.card-header {
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border-bottom: 1px solid var(--border-color);
    border-radius: 12px 12px 0 0 !important;
    padding: 1rem 1.25rem;
}

.card-title {
    margin-bottom: 0;
    font-weight: 600;
}

/* Buttons */
.btn {
    border-radius: 8px;
    font-weight: 500;
    padding: 0.5rem 1rem;
    transition: all 0.2s ease;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border: none;
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--accent-color), var(--secondary-color));
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.3);
}

.btn-outline-primary {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

/* Forms */
.form-control, .form-select {
    border-radius: 8px;
    border: 1px solid var(--border-color);
    padding: 0.65rem 0.75rem;
    transition: all 0.2s ease;
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(37, 211, 102, 0.25);
}

.form-label {
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--dark-color);
}

/* Stats Cards */
.stat-card {
    background: linear-gradient(135deg, #fff, #f8f9fa);
    border-left: 4px solid var(--primary-color);
    transition: all 0.3s ease;
}

.stat-card:hover {
    border-left-width: 6px;
    transform: translateY(-2px);
}

.stat-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: white;
}

.stat-icon.primary {
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
}

.stat-icon.success {
    background: linear-gradient(135deg, var(--success-color), #20c997);
}

.stat-icon.warning {
    background: linear-gradient(135deg, var(--warning-color), #fd7e14);
}

.stat-icon.danger {
    background: linear-gradient(135deg, var(--danger-color), #e55353);
}

/* Tables */
.table {
    margin-bottom: 0;
}

.table th {
    border-top: none;
    font-weight: 600;
    color: var(--dark-color);
    padding: 1rem 0.75rem;
    background-color: #f8f9fa;
}

.table td {
    padding: 0.75rem;
    vertical-align: middle;
}

.table-responsive {
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}

/* Badges */
.badge {
    font-weight: 500;
    padding: 0.35em 0.65em;
    border-radius: 6px;
}

/* QR Code Display */
.qr-container {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
    background: linear-gradient(135deg, #f8f9fa, #e9ecef);
    border-radius: 12px;
    margin: 1rem 0;
}

.qr-code {
    max-width: 256px;
    width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

/* Device Status */
.device-status {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
}

.device-status.connected {
    background-color: rgba(25, 135, 84, 0.1);
    color: var(--success-color);
}

.device-status.connecting {
    background-color: rgba(255, 193, 7, 0.1);
    color: var(--warning-color);
}

.device-status.disconnected {
    background-color: rgba(220, 53, 69, 0.1);
    color: var(--danger-color);
}

.device-status::before {
    content: '';
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: 0.5rem;
    background-color: currentColor;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { opacity: 1; }
    50% { opacity: 0.5; }
    100% { opacity: 1; }
}

/* Message Timeline */
.message-timeline {
    position: relative;
    padding-left: 2rem;
}

.message-timeline::before {
    content: '';
    position: absolute;
    left: 0.5rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border-color);
}

.message-item {
    position: relative;
    margin-bottom: 1.5rem;
}

.message-item::before {
    content: '';
    position: absolute;
    left: -1.75rem;
    top: 0.25rem;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--primary-color);
    border: 2px solid #fff;
    box-shadow: 0 0 0 2px var(--primary-color);
}

/* Footer */
.footer {
    background-color: #fff;
    border-top: 1px solid var(--border-color);
    padding: 1rem 0;
    margin-top: 2rem;
}

.footer.with-sidebar {
    margin-left: 0;
    transition: margin-left 0.3s ease;
}

/* Authentication Pages */
.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

.auth-card {
    width: 100%;
    max-width: 400px;
    padding: 2rem;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header h1 {
    color: var(--dark-color);
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.auth-header p {
    color: var(--text-muted);
    margin-bottom: 0;
}

/* Responsive Design */
@media (min-width: 768px) {
    .sidebar.show {
        transform: translateX(0);
    }
    
    .main-content.with-sidebar {
        margin-left: var(--sidebar-width);
    }
    
    .footer.with-sidebar {
        margin-left: var(--sidebar-width);
    }
}

@media (max-width: 767px) {
    .sidebar {
        width: 100%;
        transform: translateX(-100%);
    }
    
    .sidebar.show {
        transform: translateX(0);
    }
    
    .main-content.with-sidebar {
        margin-left: 0;
    }
    
    .card {
        margin-bottom: 1rem;
    }
    
    .stat-card .row > div:not(:last-child) {
        margin-bottom: 1rem;
    }
}

/* Utilities */
.fade-in {
    animation: fadeIn 0.3s ease-in;
}

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

.slide-in {
    animation: slideIn 0.3s ease-out;
}

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

/* Custom Scrollbar */
.sidebar-menu::-webkit-scrollbar {
    width: 4px;
}

.sidebar-menu::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar-menu::-webkit-scrollbar-thumb {
    background: rgba(37, 211, 102, 0.3);
    border-radius: 2px;
}

.sidebar-menu::-webkit-scrollbar-thumb:hover {
    background: rgba(37, 211, 102, 0.5);
}

/* File Upload */
.file-upload {
    position: relative;
    display: inline-block;
    width: 100%;
}

.file-upload input[type="file"] {
    position: absolute;
    left: -9999px;
}

.file-upload-label {
    display: block;
    padding: 0.75rem;
    border: 2px dashed var(--border-color);
    border-radius: 8px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    background: #f8f9fa;
}

.file-upload-label:hover {
    border-color: var(--primary-color);
    background: rgba(37, 211, 102, 0.05);
}

.file-upload-label.dragover {
    border-color: var(--primary-color);
    background: rgba(37, 211, 102, 0.1);
}

/* Progress Bars */
.progress {
    height: 8px;
    border-radius: 4px;
    background-color: #e9ecef;
}

.progress-bar {
    border-radius: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
}

/* Authentication Pages */
.auth-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem 1rem;
}

.auth-container {
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
}

.auth-card {
    border-radius: 1rem;
    padding: 3rem 2.5rem;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.auth-header {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-header h1 {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.brand-logo {
    display: inline-block;
    font-size: 3rem;
    background: linear-gradient(135deg, var(--whatsapp-green), var(--whatsapp-dark));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.password-strength {
    height: 4px;
    background-color: var(--border-color);
    border-radius: 2px;
    overflow: hidden;
    transition: all 0.3s ease;
}

.strength-weak { background-color: #dc3545; width: 20%; }
.strength-fair { background-color: #ffc107; width: 40%; }
.strength-good { background-color: #28a745; width: 60%; }
.strength-strong { background-color: #20c997; width: 80%; }

/* Auth form specific styles */
.auth-card .form-control {
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
    background: var(--card-bg);
}

.auth-card .form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(37, 211, 102, 0.25);
}

.auth-card .btn {
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.auth-card .btn-primary {
    background: linear-gradient(135deg, var(--whatsapp-green), var(--whatsapp-dark));
    border: none;
    color: white;
}

.auth-card .btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
}

.auth-card .btn-outline-primary {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.auth-card .btn-outline-primary:hover {
    background: var(--primary-color);
    border-color: var(--primary-color);
    color: white;
}

.auth-card .alert {
    border-radius: 0.5rem;
    border: none;
    padding: 1rem;
}

.auth-card .modal-content {
    border-radius: 1rem;
    border: none;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.auth-card .modal-header {
    border-bottom: 1px solid var(--border-color);
    padding: 1.5rem;
}

.auth-card .modal-body {
    padding: 1.5rem;
}

.auth-card .modal-footer {
    border-top: 1px solid var(--border-color);
    padding: 1.5rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        width: 280px;
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
        padding: 1rem;
    }
    
    .navbar {
        padding-left: 1rem;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .device-card {
        padding: 1rem;
    }
    
    .qr-code {
        max-width: 200px;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    /* Auth responsive */
    .auth-card {
        padding: 2rem 1.5rem;
        margin: 1rem;
    }
    
    .auth-container {
        max-width: 100%;
    }
    
    .brand-logo {
        font-size: 2.5rem;
    }
}

/* Dark mode support */
@media (prefers-color-scheme: dark) {
    :root {
        --dark-color: #f8fafc;
        --light-color: #1f2937;
        --border-color: #374151;
        --text-muted: #9ca3af;
    }
}