/* SAM3 Web App Styles */

:root {
    --primary: #667eea;
    --primary-dark: #5568d3;
    --secondary: #764ba2;
    --success: #28a745;
    --danger: #dc3545;
    --warning: #ffc107;
    --light: #f8f9fa;
    --dark: #343a40;
    --border: #dee2e6;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1600px;
    margin: 0 auto;
}

header {
    background: white;
    padding: 30px;
    border-radius: 15px;
    margin-bottom: 20px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    text-align: center;
}

header h1 {
    color: var(--dark);
    font-size: 2.5em;
    margin-bottom: 10px;
}

.subtitle {
    color: #666;
    font-size: 1.1em;
    margin-bottom: 15px;
}

.status {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--light);
    border-radius: 20px;
    font-size: 0.9em;
}

.status-indicator {
    font-size: 1.2em;
}

.status.online .status-indicator {
    color: var(--success);
}

.main-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

.panel {
    background: white;
    padding: 30px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.panel h2 {
    color: var(--dark);
    margin-bottom: 20px;
    font-size: 1.8em;
}

/* Upload Section */
.upload-section {
    margin-bottom: 20px;
}

.upload-box {
    border: 3px dashed var(--border);
    border-radius: 10px;
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--light);
}

.upload-box:hover {
    border-color: var(--primary);
    background: #f0f4ff;
}

.upload-box svg {
    color: var(--primary);
    margin-bottom: 15px;
}

.upload-box p {
    color: var(--dark);
    font-size: 1.1em;
    margin-bottom: 5px;
}

.file-types {
    color: #999;
    font-size: 0.9em;
}

/* Preview Section */
.preview-section {
    text-align: center;
}

.preview-section img {
    max-width: 100%;
    max-height: 300px;
    border-radius: 10px;
    margin-bottom: 15px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.2);
}

/* Mode Selection */
.mode-section {
    margin: 25px 0;
}

.mode-section h3 {
    color: var(--dark);
    margin-bottom: 10px;
    font-size: 1.1em;
}

.mode-buttons {
    display: flex;
    gap: 10px;
}

.mode-btn {
    flex: 1;
    padding: 12px;
    border: 2px solid var(--border);
    background: white;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1em;
    transition: all 0.3s ease;
}

.mode-btn:hover {
    border-color: var(--primary);
    background: #f0f4ff;
}

.mode-btn.active {
    border-color: var(--primary);
    background: var(--primary);
    color: white;
}

/* Prompts Section */
.prompts-section {
    margin: 20px 0;
}

.prompts-section h3 {
    color: var(--dark);
    margin-bottom: 15px;
    font-size: 1.1em;
}

.prompt-list {
    margin-bottom: 15px;
}

.prompt-item {
    display: flex;
    gap: 10px;
    margin-bottom: 10px;
}

.prompt-input {
    flex: 1;
    padding: 12px;
    border: 2px solid var(--border);
    border-radius: 8px;
    font-size: 1em;
}

.prompt-input:focus {
    outline: none;
    border-color: var(--primary);
}

.btn-remove {
    width: 40px;
    background: var(--danger);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1.5em;
    transition: opacity 0.3s ease;
}

.btn-remove:hover {
    opacity: 0.8;
}

.instructions {
    background: var(--light);
    padding: 15px;
    border-radius: 8px;
    line-height: 1.8;
    margin-bottom: 15px;
}

.examples {
    margin-top: 15px;
}

.examples p {
    margin-bottom: 8px;
    color: #666;
}

.example-btn {
    padding: 6px 12px;
    margin: 4px;
    background: white;
    border: 2px solid var(--primary);
    color: var(--primary);
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9em;
    transition: all 0.3s ease;
}

.example-btn:hover {
    background: var(--primary);
    color: white;
}

/* Buttons */
.btn-primary, .btn-secondary {
    padding: 14px 28px;
    border: none;
    border-radius: 8px;
    font-size: 1.1em;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    font-weight: bold;
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-secondary {
    background: white;
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-secondary:hover {
    background: var(--primary);
    color: white;
}

.btn-small {
    padding: 8px 16px;
    font-size: 0.9em;
}

/* Results */
.result-placeholder {
    text-align: center;
    padding: 60px 20px;
    color: #999;
}

.result-placeholder svg {
    margin-bottom: 20px;
}

.result-content {
    min-height: 400px;
}

.canvas-container {
    position: relative;
    margin-bottom: 20px;
}

#resultCanvas {
    max-width: 100%;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.2);
    cursor: crosshair;
}

.result-image {
    text-align: center;
    margin-bottom: 20px;
}

.result-image img {
    max-width: 100%;
    border-radius: 10px;
    box-shadow: 0 3px 10px rgba(0,0,0,0.2);
}

.mask-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin: 20px 0;
}

.mask-card {
    background: var(--light);
    padding: 15px;
    border-radius: 10px;
    text-align: center;
}

.mask-card h4 {
    color: var(--dark);
    margin-bottom: 10px;
    font-size: 1em;
}

.mask-card img {
    width: 100%;
    border-radius: 8px;
    margin-bottom: 10px;
    border: 2px solid var(--border);
}

.mask-info {
    font-size: 0.9em;
    color: #666;
}

.confidence {
    display: inline-block;
    padding: 4px 10px;
    background: var(--success);
    color: white;
    border-radius: 12px;
    font-weight: bold;
    margin-top: 5px;
}

.stats-section {
    background: var(--light);
    padding: 20px;
    border-radius: 10px;
    margin-top: 20px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
}

.stat-item {
    text-align: center;
}

.stat-value {
    font-size: 1.8em;
    font-weight: bold;
    color: var(--primary);
}

.stat-label {
    color: #666;
    font-size: 0.9em;
}

.loading {
    text-align: center;
    padding: 40px;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--light);
    border-top: 4px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Info Section */
.info-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
    margin-bottom: 20px;
}

.info-card {
    background: white;
    padding: 25px;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.info-card h3 {
    color: var(--dark);
    margin-bottom: 15px;
    font-size: 1.3em;
}

.info-card p, .info-card li {
    color: #666;
    line-height: 1.8;
}

.info-card ul {
    list-style: none;
    padding-left: 0;
}

.info-card li {
    margin-bottom: 8px;
}

footer {
    background: white;
    padding: 20px;
    border-radius: 15px;
    text-align: center;
    color: #666;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

/* Responsive */
@media (max-width: 1024px) {
    .main-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    header h1 {
        font-size: 1.8em;
    }
    
    .mode-buttons {
        flex-direction: column;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
}