/**
 * BHK Corrector V2 - Styles
 * Modern, professional design
 */

:root {
    /* Corporate Design Colors - Black & Grey Scale */
    --primary-color: #000000; /* Black */
    --primary-dark: #1a1a1a;  /* Dark Grey */
    --accent-color: #666666;  /* Medium Grey */
    
    --success-color: #10B981;
    --error-color: #EF4444;
    --warning-color: #F59E0B;
    
    --text-color: #1F2937;
    --text-light: #6B7280;
    --text-white: #FFFFFF;
    
    --border-color: #E5E7EB;
    --bg-light: #F3F4F6;
    --bg-white: #FFFFFF;
    
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    
    --transition: all 0.2s ease-in-out;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--bg-light);
    background-image: url('/static/img/Bild1.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    color: var(--text-color);
    line-height: 1.5;
}

.container {
    background: rgba(255, 255, 255, 0.95); /* Slight transparency to show pattern */
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    max-width: 800px;
    width: 100%;
    overflow: hidden;
    backdrop-filter: blur(5px);
}

header {
    background-color: var(--primary-color);
    color: var(--text-white);
    padding: 20px 30px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.logo {
    max-width: 200px;
    height: auto;
    display: block;
}

.subtitle {
    font-size: 13px;
    font-weight: 400;
    opacity: 0.9;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

main {
    padding: 25px 30px;
}

footer {
    background: var(--bg-light);
    padding: 12px 20px;
    text-align: center;
    color: var(--text-light);
    font-size: 12px;
    border-top: 1px solid var(--border-color);
}

/* Health Status */
.health-status {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: var(--bg-light);
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    font-size: 13px;
}

.status-indicator {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    animation: pulse 2s infinite;
}

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

.status-indicator.warning {
    background: var(--warning-color);
}

.status-indicator.error {
    background: var(--error-color);
}

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

/* Mode Selection (NEW) */
.mode-section {
    margin-bottom: 20px;
}

.mode-title {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 12px;
    text-align: center;
}

.mode-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.mode-card {
    background: var(--bg-white);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 14px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.mode-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.mode-card.active {
    border-color: var(--primary-color);
    background: #F3F4F6;
    box-shadow: var(--shadow-sm);
}

.mode-card.active::after {
    content: '✓';
    position: absolute;
    top: 8px;
    right: 8px;
    width: 24px;
    height: 24px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: bold;
}

.mode-icon {
    font-size: 32px;
    margin-bottom: 12px;
}

.mode-name {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 8px;
}

.mode-description {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.4;
}

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

.drop-zone {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-md);
    padding: 25px;
    text-align: center;
    background: var(--bg-light);
    transition: var(--transition);
    cursor: pointer;
}

.drop-zone:hover {
    border-color: var(--primary-color);
    background: #F3F4F6;
}

.drop-zone.drag-over {
    border-color: var(--primary-color);
    background: #E5E7EB;
    transform: scale(1.01);
}

.drop-zone-content .icon {
    width: 48px;
    height: 48px;
    margin: 0 auto 12px;
    color: var(--primary-color);
    opacity: 0.8;
}

.drop-zone-content h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-color);
}

.drop-zone-content p {
    color: var(--text-light);
    margin: 6px 0;
    font-size: 13px;
}

.btn-browse {
    background: white;
    color: var(--primary-color);
    border: 1px solid var(--primary-color);
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin: 12px 0;
}

.btn-browse:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.file-info {
    font-size: 14px;
    color: var(--text-light);
    margin-top: 12px;
}

/* File Preview */
.file-preview {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--bg-light);
    border-radius: var(--radius-md);
    border: 2px solid var(--success-color);
}

.file-icon {
    font-size: 36px;
}

.file-details {
    flex: 1;
}

.file-name {
    font-weight: 600;
    font-size: 16px;
    margin-bottom: 4px;
    color: var(--text-color);
}

.file-size {
    font-size: 14px;
    color: var(--text-light);
}

.btn-remove {
    background: var(--error-color);
    color: white;
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 18px;
    transition: var(--transition);
}

.btn-remove:hover {
    background: #e53e3e;
    transform: scale(1.1);
}

/* Buttons */
.btn-primary {
    width: 100%;
    padding: 16px 24px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
}

.btn-primary:hover:not(:disabled) {
    background-color: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    background-color: var(--text-light);
}

.btn-secondary {
    padding: 12px 24px;
    background: var(--bg-white);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 16px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

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

.btn-download {
    width: 100%;
    padding: 16px 24px;
    background: var(--success-color);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    font-size: 18px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 12px;
}

.btn-download:hover {
    background: #059669;
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

/* Progress */
.progress {
    margin-top: 24px;
    padding: 20px;
    background: var(--bg-light);
    border-radius: var(--radius-md);
}

.progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-color);
}

.progress-bar {
    width: 100%;
    height: 12px;
    background: #E5E7EB;
    border-radius: 6px;
    overflow: hidden;
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.05);
}

.progress-fill {
    height: 100%;
    background-color: var(--primary-color);
    width: 0%;
    transition: width 0.5s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 10px;
    font-weight: 600;
}

.progress-message {
    margin-top: 12px;
    font-size: 14px;
    color: var(--text-light);
    text-align: center;
}

/* Result */
.result {
    margin-top: 24px;
    padding: 30px;
    background: #ECFDF5;
    border-radius: var(--radius-md);
    border: 1px solid var(--success-color);
    text-align: center;
}

.result-icon {
    font-size: 48px;
    margin-bottom: 16px;
    color: var(--success-color);
}

.result h3 {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-color);
    margin-bottom: 20px;
}

.result-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 24px;
    padding: 20px;
    background: white;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.stat-value {
    font-size: 32px;
    font-weight: 700;
    color: var(--primary-color);
}

.stat-label {
    font-size: 14px;
    color: var(--text-light);
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.result-mode-badge {
    display: inline-block;
    padding: 6px 12px;
    background: var(--bg-light);
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    color: var(--text-color);
    margin-bottom: 20px;
}

/* Error */
.error {
    margin-top: 24px;
    padding: 24px;
    background: #FEF2F2;
    border-radius: var(--radius-md);
    border: 1px solid var(--error-color);
    text-align: center;
}

.error-icon {
    font-size: 48px;
    margin-bottom: 12px;
}

.error h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--error-color);
    margin-bottom: 12px;
}

.error p {
    color: #991B1B;
    margin-bottom: 16px;
    line-height: 1.5;
}

/* Utility Classes */
.hidden {
    display: none !important;
}

/* Responsive */
@media (max-width: 768px) {
    .mode-options {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    header h1 {
        font-size: 24px;
    }

    main {
        padding: 24px;
    }

    .drop-zone {
        padding: 24px;
    }

    .result-stats {
        flex-direction: column;
        gap: 16px;
    }
}