:root {
    --client-bg: #000000;
    --client-bg-secondary: #0a0a0a;
    --client-bg-tertiary: #111111;
    --client-card: #0d0d0d;
    --client-border: #1a1a1a;
    --client-border-accent: #00d4ff;
    --client-border-glow: rgba(0, 212, 255, 0.3);
    --client-text: #ffffff;
    --client-text-muted: #666666;
    --client-primary: #00d4ff;
    --client-primary-hover: #00b8e6;
    --client-success: #00ff88;
    --client-warning: #ffaa00;
    --client-danger: #ff3366;
    --client-info: #00d4ff;
}

* {
    box-sizing: border-box;
}

body {
    background: var(--client-bg);
    color: var(--client-text);
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    min-height: 100vh;
    margin: 0;
}

.client-navbar {
    background: var(--client-bg-secondary);
    border-bottom: 1px solid var(--client-border);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
}

.client-navbar::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--client-border-accent), transparent);
}

.navbar-brand {
    color: var(--client-text);
    font-size: 1.25rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    text-decoration: none;
}

.navbar-brand i {
    color: var(--client-primary);
    text-shadow: 0 0 10px var(--client-border-glow);
}

.navbar-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.language-switch {
    display: flex;
    gap: 0.25rem;
    background: var(--client-bg-tertiary);
    border: 1px solid var(--client-border);
    border-radius: 8px;
    padding: 0.25rem;
}

.btn-lang {
    padding: 0.375rem 0.75rem;
    border: none;
    background: transparent;
    color: var(--client-text-muted);
    border-radius: 6px;
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-lang:hover {
    color: var(--client-text);
}

.btn-lang.active {
    background: var(--client-primary);
    color: var(--client-bg);
    font-weight: 600;
}

.btn-admin {
    background: transparent;
    border: 1px solid var(--client-border);
    color: var(--client-text);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.2s ease;
}

.btn-admin:hover {
    border-color: var(--client-primary);
    color: var(--client-primary);
    box-shadow: 0 0 15px var(--client-border-glow);
}

.btn-admin i {
    color: var(--client-primary);
}

.client-container {
    padding: 1.5rem 2rem;
    min-height: calc(100vh - 65px);
}

.card {
    background: var(--client-card);
    border: 1px solid var(--client-border);
    border-radius: 12px;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--client-border-accent), transparent);
    opacity: 0.5;
}

.card:hover::before {
    opacity: 1;
}

.card-header {
    background: transparent;
    border-bottom: 1px solid var(--client-border);
    padding: 1rem 1.5rem;
}

.card-title {
    color: var(--client-text);
    font-weight: 600;
    margin: 0;
}

.card-body {
    padding: 1.5rem;
}

.card-footer {
    background: transparent;
    border-top: 1px solid var(--client-border);
    padding: 1rem 1.5rem;
}

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

.btn-primary {
    background: var(--client-primary);
    border-color: var(--client-primary);
    color: var(--client-bg);
}

.btn-primary:hover {
    background: var(--client-primary-hover);
    border-color: var(--client-primary-hover);
    box-shadow: 0 0 20px var(--client-border-glow);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--client-bg-tertiary);
    border-color: var(--client-border);
    color: var(--client-text);
}

.btn-secondary:hover {
    background: var(--client-bg-secondary);
    border-color: var(--client-border-accent);
}

.btn-success {
    background: var(--client-success);
    border-color: var(--client-success);
    color: var(--client-bg);
}

.btn-success:hover {
    box-shadow: 0 0 20px rgba(0, 255, 136, 0.3);
}

.btn-danger {
    background: var(--client-danger);
    border-color: var(--client-danger);
    color: var(--client-text);
}

.btn-danger:hover {
    box-shadow: 0 0 20px rgba(255, 51, 102, 0.3);
}

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

.btn-outline-primary:hover {
    background: var(--client-primary);
    color: var(--client-bg);
    box-shadow: 0 0 15px var(--client-border-glow);
}

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

.btn-outline-secondary:hover {
    border-color: var(--client-border-accent);
    color: var(--client-text);
}

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

.btn-outline-info:hover {
    background: var(--client-info);
    color: var(--client-bg);
}

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

.btn-outline-success:hover {
    background: var(--client-success);
    color: var(--client-bg);
}

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

.btn-outline-warning:hover {
    background: var(--client-warning);
    color: var(--client-bg);
}

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

.btn-outline-danger:hover {
    background: var(--client-danger);
    color: var(--client-text);
}

.form-control, .form-select {
    background: var(--client-bg-tertiary);
    border: 1px solid var(--client-border);
    border-radius: 8px;
    padding: 0.625rem 0.875rem;
    color: var(--client-text);
}

.form-control:focus, .form-select:focus {
    background: var(--client-bg-secondary);
    border-color: var(--client-primary);
    color: var(--client-text);
    box-shadow: 0 0 0 3px var(--client-border-glow);
}

.form-control::placeholder {
    color: var(--client-text-muted);
}

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

.form-check {
    background: var(--client-bg-tertiary);
    border: 1px solid var(--client-border);
    border-radius: 8px;
    padding: 0.75rem 1rem;
}

.form-check-input:checked {
    background-color: var(--client-primary);
    border-color: var(--client-primary);
}

.form-check-label {
    color: var(--client-text);
}

.table {
    color: var(--client-text);
}

.table thead th {
    background: var(--client-bg-tertiary);
    border-bottom: 1px solid var(--client-border-accent);
    color: var(--client-primary);
    font-weight: 600;
    padding: 1rem;
}

.table tbody td {
    border-bottom: 1px solid var(--client-border);
    padding: 1rem;
    vertical-align: middle;
}

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

.badge {
    padding: 0.375rem 0.625rem;
    border-radius: 6px;
    font-weight: 500;
    font-size: 0.75rem;
}

.badge.bg-success {
    background: var(--client-success) !important;
    color: var(--client-bg);
}

.badge.bg-warning {
    background: var(--client-warning) !important;
    color: var(--client-bg);
}

.badge.bg-info {
    background: var(--client-info) !important;
    color: var(--client-bg);
}

.badge.bg-secondary {
    background: var(--client-bg-tertiary) !important;
    border: 1px solid var(--client-border);
    color: var(--client-text-muted);
}

.badge.bg-danger {
    background: var(--client-danger) !important;
}

.modal-content {
    background: var(--client-card);
    border: 1px solid var(--client-border);
    border-radius: 16px;
}

.modal-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--client-border-accent), transparent);
}

.modal-header {
    border-bottom: 1px solid var(--client-border);
    padding: 1.25rem 1.5rem;
}

.modal-title {
    color: var(--client-text);
    font-weight: 600;
}

.modal-body {
    padding: 1.5rem;
}

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

.btn-close {
    filter: invert(1);
    opacity: 0.5;
}

.btn-close:hover {
    opacity: 1;
}

.alert {
    border-radius: 10px;
    border: 1px solid var(--client-border);
}

.alert-info {
    background: rgba(0, 212, 255, 0.1);
    border-color: var(--client-info);
    color: var(--client-info);
}

.alert-success {
    background: rgba(0, 255, 136, 0.1);
    border-color: var(--client-success);
    color: var(--client-success);
}

.alert-danger {
    background: rgba(255, 51, 102, 0.1);
    border-color: var(--client-danger);
    color: var(--client-danger);
}

.alert-warning {
    background: rgba(255, 170, 0, 0.1);
    border-color: var(--client-warning);
    color: var(--client-warning);
}

.step-item {
    padding: 1rem;
    border-radius: 10px;
    background: var(--client-bg-tertiary);
    margin-bottom: 0.75rem;
    border: 1px solid var(--client-border);
    border-left: 3px solid var(--client-border);
    transition: all 0.3s ease;
}

.step-item.success {
    background: rgba(0, 255, 136, 0.1);
    border-color: var(--client-success);
    border-left-color: var(--client-success);
    box-shadow: 0 0 15px rgba(0, 255, 136, 0.2);
}

.step-item.success .step-time {
    color: var(--client-success);
}

.step-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.step-time {
    font-size: 0.875rem;
    color: var(--client-text-muted);
}

.video-container {
    flex: 1;
    background: #000;
    border-radius: 12px;
    overflow: hidden;
    position: relative;
    border: 1px solid var(--client-border);
    min-height: 400px;
}

.video-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--client-border-accent), transparent);
    z-index: 10;
}

.video-container video {
    width: 100%;
    height: 100%;
    object-fit: contain;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 1;
    background: #000;
}

.detection-canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 2;
}

#videoPlaceholder {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3;
    background: #000;
    transition: opacity 0.3s ease;
}

#videoPlaceholder.fade-out {
    opacity: 0;
    pointer-events: none;
}

.video-controls {
    background: var(--client-card);
    border-radius: 12px;
    padding: 1rem;
    margin-top: 1rem;
    border: 1px solid var(--client-border);
}

.video-controls::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--client-border-accent), transparent);
}

.source-toggle {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.source-toggle .form-check {
    flex: 1;
    text-align: center;
    padding: 0.5rem;
    border-radius: 8px;
    background: var(--client-bg-tertiary);
    border: 1px solid var(--client-border);
}

.source-toggle .form-check-input:checked + .form-check-label {
    color: var(--client-primary);
}

.status-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.875rem;
    border: 1px solid var(--client-border);
}

.status-indicator.running {
    background: rgba(0, 255, 136, 0.1);
    border-color: var(--client-success);
    color: var(--client-success);
}

.status-indicator.stopped {
    background: var(--client-bg-tertiary);
    border-color: var(--client-border);
    color: var(--client-text-muted);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: currentColor;
}

.status-indicator.running .status-dot {
    animation: pulse 1.5s infinite;
    box-shadow: 0 0 10px currentColor;
}

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

.log-panel {
    position: fixed;
    left: 20px;
    bottom: 20px;
    width: 350px;
    max-height: 200px;
    background: var(--client-card);
    border-radius: 12px;
    border: 1px solid var(--client-border);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    z-index: 1000;
    display: block;
}

.log-panel::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--client-border-accent), transparent);
}

.log-panel.hidden {
    display: none;
}

.log-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 1rem;
    background: var(--client-bg-tertiary);
    border-radius: 12px 12px 0 0;
    border-bottom: 1px solid var(--client-border);
}

.log-header h6 {
    margin: 0;
    color: var(--client-primary);
    font-size: 0.875rem;
}

.log-toggle {
    background: none;
    border: none;
    color: var(--client-text-muted);
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
}

.log-toggle:hover {
    color: var(--client-primary);
    background: rgba(0, 212, 255, 0.1);
}

.log-content {
    padding: 0.5rem;
    max-height: 150px;
    overflow-y: auto;
    font-family: 'Consolas', monospace;
    font-size: 0.75rem;
}

.log-entry {
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    margin-bottom: 2px;
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.log-entry .time {
    color: var(--client-text-muted);
    white-space: nowrap;
}

.log-entry .message {
    color: var(--client-text);
    word-break: break-all;
}

.log-entry.info {
    background: rgba(0, 212, 255, 0.1);
    border-left: 2px solid var(--client-info);
}

.log-entry.info .message {
    color: var(--client-info);
}

.log-entry.success {
    background: rgba(0, 255, 136, 0.1);
    border-left: 2px solid var(--client-success);
}

.log-entry.success .message {
    color: var(--client-success);
}

.log-entry.warning {
    background: rgba(255, 170, 0, 0.1);
    border-left: 2px solid var(--client-warning);
}

.log-entry.warning .message {
    color: var(--client-warning);
}

.log-entry.error {
    background: rgba(255, 51, 102, 0.1);
    border-left: 2px solid var(--client-danger);
}

.log-entry.error .message {
    color: var(--client-danger);
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--client-bg);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb {
    background: var(--client-border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--client-primary);
}

.text-muted {
    color: var(--client-text-muted) !important;
}

.client-layout {
    display: flex;
    gap: 1.5rem;
    height: calc(100vh - 160px);
}

.step-panel {
    width: 30%;
    display: flex;
    flex-direction: column;
}

.video-panel {
    width: 70%;
    display: flex;
    flex-direction: column;
}

.progress {
    background: var(--client-bg-tertiary);
    border-radius: 8px;
    height: 8px;
    overflow: hidden;
    border: 1px solid var(--client-border);
}

.progress-bar {
    background: linear-gradient(90deg, var(--client-primary), var(--client-success));
    box-shadow: 0 0 10px var(--client-border-glow);
}

.upload-zone {
    border: 2px dashed var(--client-border);
    border-radius: 12px;
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    background: var(--client-bg-tertiary);
}

.upload-zone:hover {
    border-color: var(--client-primary);
    background: rgba(0, 212, 255, 0.05);
    box-shadow: 0 0 20px var(--client-border-glow);
}

.upload-zone i {
    font-size: 3rem;
    color: var(--client-primary);
    margin-bottom: 1rem;
}