:root {
    --font-primary: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    --bg-main: #0B0F19;
    --bg-card: rgba(18, 26, 43, 0.7);
    --bg-card-hover: rgba(26, 37, 61, 0.8);
    --border-color: rgba(255, 255, 255, 0.08);

    --primary-color: #6366F1;
    --primary-gradient: linear-gradient(135deg, #6366F1 0%, #4F46E5 100%);
    --accent-color: #10B981;
    --accent-gradient: linear-gradient(135deg, #10B981 0%, #059669 100%);
    --danger-color: #EF4444;
    --warning-color: #F59E0B;
    --info-color: #3B82F6;

    --text-main: #F9FAFB;
    --text-muted: #9CA3AF;
    --text-dim: #6B7280;

    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-full: 9999px;

    --shadow-soft: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.25);
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-primary);
    background-color: var(--bg-main);
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.5;
}

/* Glassmorphism */
.glass-panel {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-soft);
}

/* App Container */
.app-container {
    width: 100%;
    min-height: 100vh;
}

/* Auth View */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    background: radial-gradient(circle at 50% 30%, rgba(99, 102, 241, 0.15), transparent 60%);
}

.auth-card {
    width: 100%;
    max-width: 440px;
    padding: 2.5rem;
}

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

.logo-badge {
    width: 60px;
    height: 60px;
    background: var(--primary-gradient);
    border-radius: 16px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-glow);
}

.auth-header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 0.25rem;
}

.auth-subtitle {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.auth-tabs {
    display: flex;
    background: rgba(0, 0, 0, 0.25);
    padding: 4px;
    border-radius: var(--radius-sm);
    margin-bottom: 1.5rem;
}

.auth-tab-btn {
    flex: 1;
    padding: 0.6rem;
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    border-radius: calc(var(--radius-sm) - 2px);
    transition: var(--transition-fast);
}

.auth-tab-btn.active {
    background: var(--bg-card-hover);
    color: var(--text-main);
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

/* Forms */
.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.form-group input {
    width: 100%;
    padding: 0.75rem 1rem;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-main);
    font-family: inherit;
    font-size: 0.9375rem;
    transition: var(--transition-fast);
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.25rem;
    font-weight: 600;
    font-size: 0.9375rem;
    border-radius: var(--radius-sm);
    border: none;
    cursor: pointer;
    transition: var(--transition-fast);
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
    opacity: 0.92;
    transform: translateY(-1px);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-main);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.14);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
}

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

.btn-block {
    width: 100%;
}

.btn-sm {
    padding: 0.4rem 0.8rem;
    font-size: 0.8125rem;
}

.btn-icon {
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
}

.btn-icon:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--danger-color);
}

.demo-account-box {
    margin-top: 1.5rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.demo-title {
    font-size: 0.8125rem;
    color: var(--text-muted);
}

/* Dashboard Layout */
.dashboard-wrapper {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 260px;
    padding: 1.5rem 1rem;
    display: flex;
    flex-direction: column;
    border-radius: 0;
    border-right: 1px solid var(--border-color);
    border-top: none;
    border-bottom: none;
    border-left: none;
    position: fixed;
    height: 100vh;
    z-index: 10;
}

.sidebar-header {
    padding: 0 0.5rem 1.5rem 0.5rem;
}

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

.logo-icon {
    font-size: 1.5rem;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #fff 0%, #A5B4FC 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
    flex: 1;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: var(--radius-sm);
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    transition: var(--transition-fast);
    text-align: left;
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
}

.nav-item.active {
    background: var(--primary-gradient);
    color: white;
    box-shadow: var(--shadow-glow);
}

.nav-badge {
    margin-left: auto;
    background: rgba(0, 0, 0, 0.3);
    padding: 0.15rem 0.5rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
}

.user-profile-widget {
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.user-avatar {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: white;
}

.user-info {
    flex: 1;
    overflow: hidden;
}

.user-name {
    font-size: 0.875rem;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-email {
    font-size: 0.75rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 260px;
    padding: 2rem;
    max-width: 1400px;
}

/* Top Header */
.top-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.75rem;
    margin-bottom: 2rem;
}

.header-title h2 {
    font-size: 1.5rem;
    font-weight: 700;
}

.last-sync-tag {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.header-actions {
    display: flex;
    gap: 0.75rem;
}

/* Page Content Sections */
.page-section {
    display: none;
}

.page-section.active {
    display: block;
    animation: fadeIn 0.3s ease-in-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Overview Metrics */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.25rem;
}

.metric-card {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.metric-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
}

.icon-contacts { background: linear-gradient(135deg, #6366F1, #4338CA); }
.icon-calls { background: linear-gradient(135deg, #10B981, #047857); }
.icon-sms { background: linear-gradient(135deg, #F59E0B, #B45309); }
.icon-photos { background: linear-gradient(135deg, #EC4899, #BE185D); }

.metric-label {
    font-size: 0.8125rem;
    color: var(--text-muted);
    font-weight: 600;
}

.metric-value {
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
    gap: 1.25rem;
}

.mt-4 { margin-top: 1.5rem; }
.mb-4 { margin-bottom: 1.5rem; }

.card {
    padding: 1.5rem;
}

.card-header {
    margin-bottom: 1rem;
}

.card-title {
    font-size: 1rem;
    font-weight: 700;
}

.device-status-box, .security-info-box {
    padding: 1rem;
    background: rgba(0, 0, 0, 0.2);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
}

.device-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.device-icon { font-size: 1.5rem; }
.device-meta { flex: 1; }
.device-name { font-weight: 600; font-size: 0.875rem; }
.device-sub { font-size: 0.75rem; color: var(--text-muted); }

.status-badge {
    padding: 0.25rem 0.6rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 700;
}

.status-online {
    background: rgba(16, 185, 129, 0.15);
    color: #34D399;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

/* Tables & Controls */
.table-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.25rem;
    margin-bottom: 1.25rem;
}

.search-box {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(0, 0, 0, 0.25);
    padding: 0.5rem 0.85rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    width: 320px;
}

.search-box input {
    background: transparent;
    border: none;
    color: var(--text-main);
    font-family: inherit;
    font-size: 0.875rem;
    width: 100%;
}

.search-box input:focus { outline: none; }

.filter-pills {
    display: flex;
    gap: 0.5rem;
}

.pill {
    padding: 0.4rem 0.85rem;
    border-radius: var(--radius-full);
    border: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-muted);
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition-fast);
}

.pill.active, .pill:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

.table-responsive {
    overflow-x: auto;
}

.custom-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.custom-table th {
    padding: 0.85rem 1rem;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-color);
}

.custom-table td {
    padding: 0.95rem 1rem;
    font-size: 0.875rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.custom-table tr:hover td {
    background: rgba(255, 255, 255, 0.03);
}

.badge-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.2rem 0.55rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 700;
}

.badge-incoming { background: rgba(16, 185, 129, 0.15); color: #34D399; }
.badge-outgoing { background: rgba(59, 130, 246, 0.15); color: #60A5FA; }
.badge-missed { background: rgba(239, 68, 68, 0.15); color: #F87171; }
.badge-inbox { background: rgba(245, 158, 11, 0.15); color: #FBBF24; }
.badge-sent { background: rgba(168, 85, 247, 0.15); color: #C084FC; }

/* Photo Gallery */
.photo-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.25rem;
}

.photo-card {
    position: relative;
    border-radius: var(--radius-md);
    overflow: hidden;
    aspect-ratio: 1;
    cursor: pointer;
    border: 1px solid var(--border-color);
}

.photo-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

.photo-card:hover img {
    transform: scale(1.06);
}

.photo-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.85), transparent 60%);
    opacity: 0;
    transition: opacity 0.2s ease;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 0.85rem;
}

.photo-card:hover .photo-overlay {
    opacity: 1;
}

.photo-title {
    font-size: 0.8125rem;
    font-weight: 600;
    color: white;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.photo-date {
    font-size: 0.725rem;
    color: var(--text-muted);
}

/* Lightbox Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 100;
    padding: 2rem;
}

.modal-overlay.active {
    display: flex;
}

.modal-card {
    max-width: 900px;
    width: 100%;
    position: relative;
    padding: 1.5rem;
}

.modal-close-btn {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.75rem;
    cursor: pointer;
}

.lightbox-body img {
    width: 100%;
    max-height: 70vh;
    object-fit: contain;
    border-radius: var(--radius-sm);
}

.lightbox-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Screen Capture Viewport */
.screen-capture-container {
    padding: 1.5rem;
}

.screen-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.screen-status-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.live-pulse {
    width: 12px;
    height: 12px;
    background: #10B981;
    border-radius: 50%;
    box-shadow: 0 0 10px #10B981;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
    70% { transform: scale(1.1); box-shadow: 0 0 0 10px rgba(16, 185, 129, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.screen-controls {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.screen-viewport {
    background: #000;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
    min-height: 480px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
    box-shadow: inset 0 0 30px rgba(0,0,0,0.8);
}

.screen-placeholder {
    text-align: center;
    padding: 3rem;
    color: var(--text-muted);
}

.placeholder-icon {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

#screenFrameImg {
    max-width: 100%;
    max-height: 75vh;
    border-radius: var(--radius-sm);
    object-fit: contain;
    cursor: zoom-in;
    transition: transform 0.2s ease;
}

audio {
    height: 36px;
    border-radius: 18px;
    outline: none;
}

/* Toast Notification System */
.toast-container {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 1000;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    pointer-events: none;
}

.toast {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.85rem 1.25rem;
    border-radius: var(--radius-sm);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: auto;
    font-size: 0.875rem;
    font-weight: 600;
}

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

.toast-success {
    border-left: 4px solid var(--accent-color);
}

.toast-error {
    border-left: 4px solid var(--danger-color);
}

.toast-info {
    border-left: 4px solid var(--primary-color);
}

/* Mobile Responsive Adjustments */
.mobile-toggle-btn {
    display: none;
    background: transparent;
    border: none;
    color: var(--text-main);
    padding: 0.5rem;
    cursor: pointer;
}

@media (max-width: 992px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        box-shadow: 10px 0 30px rgba(0,0,0,0.7);
    }

    .sidebar.mobile-open {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 0;
        padding: 1rem;
    }

    .mobile-toggle-btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    .table-controls {
        flex-direction: column;
        align-items: stretch;
        gap: 0.75rem;
    }

    .search-box {
        width: 100%;
    }
}

/* ==================== DEVICE CARD STYLES ==================== */
.device-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 1rem 1.25rem;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.device-card:hover {
    border-color: rgba(99, 102, 241, 0.5);
    transform: translateY(-1px);
    box-shadow: var(--shadow-glow);
}

.device-card.online {
    border-left: 3px solid #10B981;
}

.device-card.offline {
    border-left: 3px solid rgba(239, 68, 68, 0.6);
    opacity: 0.75;
}

.device-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.device-status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.device-status-dot.online {
    background: #10B981;
    box-shadow: 0 0 8px #10B981;
    animation: pulse 2s infinite;
}

.device-status-dot.offline {
    background: #EF4444;
    opacity: 0.6;
}

.device-name {
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--text-main);
    flex: 1;
}

.device-badge {
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.15rem 0.5rem;
    border-radius: var(--radius-full);
}

.badge-online {
    background: rgba(16, 185, 129, 0.2);
    color: #10B981;
    border: 1px solid rgba(16, 185, 129, 0.4);
}

.badge-offline {
    background: rgba(239, 68, 68, 0.15);
    color: #EF4444;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.device-meta {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Live pulse animation for online devices */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.4; }
}