:root {
    --bg-color: #f4f6f8;
    --card-bg: #ffffff;
    --panel-bg: #f8f9fa;
    --text-main: #1a1a1a;
    --text-muted: #666666;
    --border-color: #e2e8f0;
    --accent-green: #2e7d32;
    --accent-blue: #0066cc;
    --accent-light: #e8f5e9;
    --accent-darker: #1b5e20;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    margin: 0;
    padding: 0;
}

.app-container {
    width: 100%;
    height: 100vh;
    display: flex;
    flex-direction: column;
}

.hidden {
    display: none !important;
}

        .language-switcher {
            position: fixed;
            top: 20px;
            right: 20px;
            z-index: 1000;
        }

        .lang-btn {
            padding: 8px 14px;
            font-size: 13px;
            font-weight: 700;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            background-color: var(--card-bg);
            color: var(--text-main);
            cursor: pointer;
            transition: all 0.2s ease;
            box-shadow: 0 2px 8px rgba(0,0,0,0.08);
        }

        .lang-btn:hover {
            background-color: var(--panel-bg);
            box-shadow: 0 4px 12px rgba(0,0,0,0.12);
        }

        .lang-btn:active {
            transform: scale(0.98);
        }

        .container {
            max-width: 900px;
            width: 100%;
            background: var(--card-bg);
            border-radius: 12px;
            box-shadow: 0 4px 20px rgba(0,0,0,0.05);
            padding: 30px;
            box-sizing: border-box;
            text-align: center;
        }

        h1 {
            font-size: 24px;
            font-weight: 700;
            margin: 0 0 4px 0;
            color: var(--text-main);
        }

        .subtitle {
            font-size: 13px;
            font-style: italic;
            color: var(--text-muted);
            margin-bottom: 25px;
        }

        /* Upload Area Style */
        .upload-section {
            border: 2px dashed var(--accent-green);
            padding: 40px 30px;
            border-radius: 8px;
            cursor: pointer;
            background-color: var(--accent-light);
            transition: background 0.2s ease, border-color 0.2s ease;
            margin-bottom: 30px;
            animation: pulse-border 2s ease-in-out infinite;
        }
        .upload-section.has-image {
            animation: none;
            border-color: #cbd5e1;
            background-color: #f9fbf9;
        }
        @keyframes pulse-border {
            0%, 100% { border-color: var(--accent-green); }
            50% { border-color: #81c784; }
        }
        .upload-section:hover {
            background-color: #c8e6c9;
            border-color: var(--accent-darker);
        }
        .upload-section.drag-over {
            background-color: #a5d6a7;
            border-color: var(--accent-darker);
            border-width: 2px;
            box-shadow: 0 0 0 3px rgba(46, 125, 50, 0.15);
            animation: none;
        }
        .upload-section p {
            margin: 0;
            font-size: 16px;
            color: var(--text-main);
            font-weight: 600;
        }
        .upload-section::before {
            content: '';
            display: block;
            width: 40px;
            height: 40px;
            margin: 0 auto 10px;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='40' height='40' viewBox='0 0 24 24' fill='none' stroke='%232e7d32' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4'/%3E%3Cpolyline points='17 8 12 3 7 8'/%3E%3Cline x1='12' y1='3' x2='12' y2='15'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: center;
            background-size: contain;
        }
        #fileInput { display: none; }

        /* Real-Time Render Map Row */
        /* View Mode Toggle */
        .view-mode-toggle {
            display: flex;
            gap: 10px;
            margin-bottom: 20px;
            justify-content: center;
        }

        .view-mode-btn {
            padding: 10px 20px;
            font-size: 14px;
            font-weight: 600;
            border: 2px solid var(--border-color);
            border-radius: 6px;
            background-color: var(--card-bg);
            color: var(--text-main);
            cursor: pointer;
            transition: all 0.3s ease;
        }

        .view-mode-btn:hover {
            border-color: var(--accent-green);
            background-color: var(--accent-light);
        }

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

        .view-mode-btn:disabled:hover {
            border-color: var(--border-color);
            background-color: var(--card-bg);
        }

        .view-mode-btn.active {
            background-color: var(--accent-green);
            color: white;
            border-color: var(--accent-green);
            box-shadow: 0 4px 12px rgba(46, 125, 50, 0.3);
        }

        .map-row {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 15px;
            margin-bottom: 35px;
        }
        .map-card {
            background-color: #f5f5f5;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            padding: 10px;
            position: relative;
            cursor: pointer;
        }
        .map-card.has-image {
            cursor: default;
        }
        .map-card canvas {
            width: 100%;
            height: auto;
            border-radius: 4px;
            background: #e2e8f0;
            aspect-ratio: 1 / 1;
            object-fit: contain;
            position: relative;
            z-index: 2;
        }

        /* Comparison View Styles */
        .comparison-view {
            display: flex;
            flex-direction: column;
            gap: 20px;
            margin-bottom: 35px;
        }

        .comparison-view.hidden {
            display: none !important;
        }

        .comparison-controls {
            display: flex;
            align-items: center;
            gap: 20px;
            padding: 15px;
            background-color: var(--panel-bg);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            flex-wrap: wrap;
            justify-content: center;
        }

        .comparison-selector {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .comparison-selector label {
            font-weight: 600;
            font-size: 13px;
            color: var(--text-main);
            white-space: nowrap;
        }

        .comparison-selector select {
            padding: 8px 12px;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            font-size: 13px;
            background-color: var(--card-bg);
            cursor: pointer;
            transition: all 0.2s ease;
        }

        .comparison-selector select:hover {
            border-color: var(--accent-green);
        }

        .comparison-separator {
            font-size: 24px;
            color: var(--accent-green);
            font-weight: bold;
            display: flex;
            align-items: center;
            height: 40px;
        }

        .comparison-canvas-row {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 20px;
            margin-bottom: 20px;
        }

        .comparison-canvas-container {
            background-color: #f5f5f5;
            border: 1px solid var(--border-color);
            border-radius: 6px;
            padding: 10px;
            position: relative;
        }

        .comparison-canvas-container h3 {
            font-size: 11px;
            font-weight: 700;
            margin: 0 0 8px 0;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }

        .comparison-canvas-container canvas {
            width: 100%;
            height: auto;
            border-radius: 4px;
            background: #e2e8f0;
            aspect-ratio: 1 / 1;
            object-fit: contain;
            position: relative;
            z-index: 2;
        }

        .comparison-canvas-container .canvas-placeholder {
            position: absolute;
            inset: 0;
            top: 30px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 12px;
            gap: 6px;
            pointer-events: none;
            background-color: rgba(255, 255, 255, 0.7);
            z-index: 1;
        }

        .comparison-canvas-container.has-image .canvas-placeholder {
            display: none !important;
        }
        .canvas-placeholder {
            position: absolute;
            inset: 0;
            top: 30px;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            color: var(--text-muted);
            font-size: 12px;
            gap: 6px;
            pointer-events: none;
            background-color: rgba(255, 255, 255, 0.7);
            z-index: 1;
        }
        .map-card.has-image .canvas-placeholder {
            display: none !important;
        }
        
        canvas {
            position: relative;
            z-index: 2;
        }
        .map-card h3 {
            font-size: 11px;
            font-weight: 700;
            margin: 0 0 8px 0;
            text-transform: uppercase;
            letter-spacing: 0.5px;
        }
        canvas {
            width: 100%;
            height: auto;
            border-radius: 4px;
            background: #e2e8f0;
            aspect-ratio: 1 / 1;
            object-fit: contain;
            position: relative;
            z-index: 2;
            display: block;
        }

        /* Interactive Inspection Section */
        /* Inspection Panel Base */
        .inspection-title {
            font-size: 16px;
            font-weight: 700;
            margin-bottom: 12px;
            text-align: left;
        }
        .inspection-panel {
            background: var(--panel-bg);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 20px;
            text-align: left;
        }

        /* Comparison Inspection Panel - Professional Side-by-Side */
        .comparison-inspection-panel {
            display: flex;
            flex-direction: column;
            gap: 20px;
            margin-bottom: 35px;
        }

        .comparison-inspection-panel.hidden {
            display: none !important;
        }

        .comparison-stats-row {
            display: grid;
            grid-template-columns: 1fr auto 1fr;
            gap: 20px;
            align-items: stretch;
        }

        .comparison-stat-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: 8px;
            padding: 20px;
            display: flex;
            flex-direction: column;
            gap: 16px;
            box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
            transition: all 0.3s ease;
        }

        .comparison-stat-card:hover {
            box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
            border-color: var(--accent-green);
        }

        .stat-card-header {
            display: flex;
            flex-direction: column;
            gap: 8px;
            padding-bottom: 12px;
            border-bottom: 2px solid var(--accent-green);
        }

        .stat-card-header h4 {
            margin: 0;
            font-size: 18px;
            font-weight: 700;
            color: var(--accent-green);
        }

        .stat-card-label {
            font-size: 11px;
            font-weight: 700;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            color: #64748b;
        }

        .stat-card-value {
            font-size: 24px;
            font-weight: 700;
            color: var(--accent-green);
            font-family: 'Monaco', 'Courier New', monospace;
            line-height: 1.2;
        }

        .stat-card-text {
            font-size: 13px;
            line-height: 1.6;
            color: #334155;
        }

        .stat-card-text:first-of-type {
            color: var(--accent-blue);
            font-weight: 600;
        }

        .comparison-separator-vertical {
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--border-color);
            font-size: 24px;
            user-select: none;
        }

        .comparison-separator-vertical::before {
            content: '';
            width: 2px;
            height: 100%;
            background: linear-gradient(to bottom, transparent, var(--accent-green), transparent);
        }

        /* Responsive adjustments */
        @media (max-width: 1024px) {
            .comparison-stats-row {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .comparison-separator-vertical {
                display: none;
            }

            .comparison-stat-card {
                padding: 16px;
            }

            .stat-card-value {
                font-size: 20px;
            }
        }
        .selector-row {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 20px;
        }
        .selector-row label {
            font-size: 12px;
            font-weight: 700;
            color: #334155;
        }
        .metric-nav-group {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .metric-nav-btn {
            padding: 8px 10px;
            font-size: 14px;
            font-weight: 700;
            border-radius: 6px;
            border: 1px solid #cbd5e1;
            background-color: #ffffff;
            cursor: pointer;
            outline: none;
            transition: all 0.2s ease;
            line-height: 1;
        }
        .metric-nav-btn:hover:not(:disabled) {
            background-color: var(--accent-light);
            border-color: var(--accent-green);
        }
        .metric-nav-btn:disabled {
            opacity: 0.4;
            cursor: not-allowed;
        }
        select {
            padding: 8px 12px;
            font-size: 13px;
            font-weight: 700;
            border-radius: 6px;
            border: 1px solid #cbd5e1;
            background-color: #ffffff;
            cursor: pointer;
            outline: none;
        }

        /* Metric Grid Presentation */
        .metric-grid {
            display: grid;
            grid-template-columns: 140px 1fr;
            row-gap: 14px;
            column-gap: 10px;
            font-size: 12px;
        }
        .grid-label {
            font-weight: 700;
            color: #64748b;
            padding-top: 2px;
        }
        #metricValue {
            font-size: 16px;
            font-weight: 700;
            color: var(--accent-green);
        }
        #metricDiagnose {
            font-size: 13px;
            font-weight: 700;
            color: var(--accent-blue);
        }
        #metricContext {
            font-size: 12px;
            line-height: 1.5;
            color: #334155;
        }

        .save-result-section {
            margin-top: 20px;
            padding: 15px;
            background: var(--accent-light);
            border-radius: 8px;
            border: 1px solid var(--border-color);
            position: relative;
        }

        .guest-save-cta {
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(255, 255, 255, 0.88);
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            z-index: 1;
            gap: 8px;
            text-align: center;
        }

        .guest-save-cta-icon {
            font-size: 24px;
        }

        .guest-save-cta p {
            margin: 0;
            font-size: 14px;
            font-weight: 600;
            color: var(--text-main);
        }

        .save-result-section label {
            display: block;
            font-size: 12px;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-main);
        }

        .save-result-section input {
            width: 100%;
            padding: 8px;
            margin-bottom: 10px;
            border: 1px solid var(--border-color);
            border-radius: 4px;
            font-size: 13px;
            box-sizing: border-box;
        }

        #saveResultBtn {
            width: 100%;
            margin-bottom: 10px;
        }

        .save-message {
            font-size: 12px;
            padding: 8px;
            border-radius: 4px;
            text-align: center;
            min-height: 20px;
        }

        .save-message.success {
            background-color: #d4edda;
            color: #155724;
            border: 1px solid #c3e6cb;
        }

        .save-message.error {
            background-color: #f8d7da;
            color: #721c24;
            border: 1px solid #f5c6cb;
        }

        /* Capabilities Footer */
        .footer {
            margin-top: 35px;
            border-top: 1px solid var(--border-color);
            padding-top: 15px;
        }
        .footer h4 {
            font-size: 14px;
            font-weight: 700;
            color: darkblue;
            margin: 0 0 6px 0;
            text-align: left;
        }
        .footer ul {
            text-align: left;
            margin: 0;
            padding-left: 16px;
            font-size: 12px;
            color: darkblue;
            line-height: 1.6;
        }
        .footer-credits {
            margin-top: 15px;
            font-size: 11px;
            font-style: italic;
            color: slateblue;
        }

/* ==================== LANDING PAGE STYLES ==================== */

.landing-page {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f4f6f8 0%, #e8f5e9 100%);
    overflow-y: auto;
}

.landing-content {
    max-width: 600px;
    width: 100%;
    padding: 40px 30px;
    text-align: center;
    animation: fadeIn 0.5s ease-in;
}

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

.landing-header {
    margin-bottom: 30px;
}

.logo-circle {
    font-size: 64px;
    margin-bottom: 20px;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.landing-header h1 {
    font-size: 36px;
    font-weight: 700;
    margin: 0 0 8px 0;
    color: var(--accent-darker);
}

.tagline {
    font-size: 14px;
    color: var(--text-muted);
    margin: 0;
    font-weight: 500;
}

.landing-description {
    font-size: 15px;
    line-height: 1.6;
    color: var(--text-muted);
    margin: 20px 0 40px 0;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

/* Auth Options Buttons */
.auth-options {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 50px;
}

.btn {
    padding: 14px 24px;
    font-size: 15px;
    font-weight: 600;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    width: 100%;
    text-align: center;
    font-family: inherit;
}

.btn-primary {
    background-color: var(--accent-green);
    color: white;
    text-shadow: 0 1px 1px rgba(0, 0, 0, 0.15);
    box-shadow: 0 4px 15px rgba(46, 125, 50, 0.2);
}

.btn-primary:hover {
    background-color: var(--accent-darker);
    box-shadow: 0 6px 20px rgba(46, 125, 50, 0.3);
    transform: translateY(-2px);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background-color: var(--accent-blue);
    color: white;
    box-shadow: 0 4px 15px rgba(0, 102, 204, 0.2);
}

.btn-secondary:hover {
    background-color: #0052a3;
    box-shadow: 0 6px 20px rgba(0, 102, 204, 0.3);
    transform: translateY(-2px);
}

.btn-secondary:active {
    transform: translateY(0);
}

.btn-outline {
    background-color: transparent;
    color: var(--accent-green);
    border: 2px solid var(--accent-green);
}

.btn-outline:hover {
    background-color: var(--accent-light);
    border-color: var(--accent-darker);
    color: var(--accent-darker);
}

.btn-outline:active {
    transform: translateY(0);
}

.full-width {
    width: 100%;
}

/* Features Grid */
.landing-footer {
    margin-top: 30px;
    border-top: 1px solid var(--border-color);
    padding-top: 30px;
}

.features-intro {
    font-size: 12px;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 0 0 16px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.feature-item {
    padding: 16px 12px;
    background: var(--card-bg);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.feature-item:hover {
    border-color: var(--accent-green);
    box-shadow: 0 4px 12px rgba(46, 125, 50, 0.1);
    transform: translateY(-2px);
}

.feature-icon {
    font-size: 28px;
    display: block;
    margin-bottom: 8px;
}

.feature-item p {
    font-size: 12px;
    margin: 0;
    color: var(--text-muted);
    font-weight: 500;
}

.language-switcher-landing {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
}

/* ==================== AUTH MODAL STYLES ==================== */

.auth-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    animation: fadeIn 0.3s ease;
    padding: 20px;
}

.auth-card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 40px;
    max-width: 400px;
    width: 100%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    position: relative;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.close-btn {
    position: absolute;
    top: 12px;
    right: 12px;
    background: none;
    border: none;
    font-size: 28px;
    cursor: pointer;
    color: var(--text-muted);
    transition: color 0.2s;
    padding: 0;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.close-btn:hover {
    color: var(--text-main);
}

.auth-card h2 {
    font-size: 24px;
    font-weight: 700;
    margin: 0 0 24px 0;
    color: var(--accent-darker);
}

.form-group {
    margin-bottom: 16px;
    text-align: left;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--text-main);
}

.form-group input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
    font-family: inherit;
    box-sizing: border-box;
    transition: border-color 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent-green);
    box-shadow: 0 0 0 3px rgba(46, 125, 50, 0.1);
}

.form-footer {
    margin-top: 20px;
    font-size: 13px;
    color: var(--text-muted);
    text-align: center;
}

.form-footer a {
    color: var(--accent-blue);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s;
}

.form-footer a:hover {
    color: #0052a3;
    text-decoration: underline;
}

/* ==================== APP MAIN STYLES ==================== */

.main-app {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: auto;
    background-color: var(--bg-color);
}

.app-header {
    background: var(--card-bg);
    padding: 10px 16px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 10px;
    justify-content: space-between;
    position: relative;
    flex-wrap: wrap;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
    min-height: auto;
}

.btn-back {
    background: none;
    border: none;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent-green);
    cursor: pointer;
    padding: 6px 10px;
    border-radius: 4px;
    transition: all 0.2s;
    flex-shrink: 0;
    white-space: nowrap;
    order: 1;
}

.btn-back:hover {
    background-color: var(--accent-light);
}

.btn-archive {
    background-color: var(--accent-blue);
    color: white;
    padding: 6px 14px;
    font-size: 12px;
    font-weight: 600;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
    flex-shrink: 0;
    width: fit-content;
    order: 2;
}

.btn-archive:hover {
    background-color: #0052a3;
}

.user-greeting-container {
    display: flex;
    margin: 0;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
    order: 3;
    flex: 1;
    justify-content: center;
}

.user-greeting {
    font-size: 12px;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}

.user-greeting strong {
    color: var(--accent-green);
    font-weight: 600;
}

.btn-logout {
    padding: 5px 10px;
    background-color: #ff6b6b;
    color: white;
    border: none;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    flex-shrink: 0;
    white-space: nowrap;
}

.btn-logout:hover {
    background-color: #ff5252;
}

.language-switcher {
    margin-left: 0;
    flex-shrink: 0;
    order: 4;
}

.lang-btn {
    padding: 5px 8px;
    font-size: 10px;
    font-weight: 700;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--card-bg);
    color: var(--text-main);
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    white-space: nowrap;
}

.lang-btn:hover {
    background-color: var(--panel-bg);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.lang-btn:active {
    transform: scale(0.98);
    color: var(--accent-green);
    cursor: pointer;
    padding: 6px 12px;
    border-radius: 4px;
    transition: all 0.2s;
}

.btn-back:hover {
    background-color: var(--accent-light);
}

.container {
    flex: 1;
    max-width: 900px;
    width: 100%;
    margin: 0 auto;
    padding: 30px 20px;
    box-sizing: border-box;
}


/* ==================== ARCHIVE MODAL STYLES ==================== */

.archive-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 3000;
    padding: 20px;
    animation: fadeIn 0.3s ease;
}

.archive-container {
    background: var(--card-bg);
    border-radius: 12px;
    width: 95%;
    max-width: 1200px;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    animation: slideUp 0.3s ease;
    overflow: hidden;
}

.archive-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
}

.archive-header h2 {
    margin: 0;
    font-size: 20px;
    font-weight: 700;
    color: var(--text-main);
}

.archive-close-btn {
    background: none;
    border: none;
    font-size: 28px;
    font-weight: 700;
    cursor: pointer;
    color: #e74c3c;
    padding: 4px 8px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    transition: all 0.2s ease;
    flex-shrink: 0;
    margin-left: 12px;
}

.archive-close-btn:hover {
    background-color: #ffe8e8;
    color: #c0392b;
    transform: scale(1.15);
}

.archive-close-btn:active {
    transform: scale(0.95);
}

.archive-controls {
    padding: 16px 24px;
    display: flex;
    gap: 12px;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
}

.search-input {
    flex: 1;
    min-width: 200px;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 13px;
    box-sizing: border-box;
}

.filter-select {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 13px;
}

.btn-small {
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 600;
}

.archive-stats {
    padding: 12px 24px;
    display: flex;
    gap: 24px;
    background-color: var(--panel-bg);
    border-bottom: 1px solid var(--border-color);
    font-size: 12px;
}

.stat-item {
    display: flex;
    align-items: center;
    gap: 8px;
}

.stat-label {
    font-weight: 700;
    color: var(--text-muted);
}

.stat-value {
    font-weight: 700;
    color: var(--accent-green);
}

.archive-table-wrapper {
    flex: 1;
    overflow: auto;
    padding: 0;
}

.archive-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.archive-table thead {
    background-color: var(--panel-bg);
    position: sticky;
    top: 0;
    z-index: 10;
}

.archive-table th {
    padding: 12px 16px;
    text-align: left;
    font-weight: 700;
    color: var(--text-main);
    border-bottom: 2px solid var(--border-color);
    cursor: pointer;
    user-select: none;
    transition: background-color 0.2s;
}

.archive-table th:hover {
    background-color: #e8eef7;
}

.archive-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-main);
}

.archive-table tbody tr.row-odd {
    background-color: var(--card-bg);
}

.archive-table tbody tr.row-even {
    background-color: var(--panel-bg);
}

.archive-table tbody tr:hover {
    background-color: #f0f5fc;
}

.cell-field {
    font-weight: 600;
    color: var(--accent-green);
}

.cell-date {
    color: var(--text-muted);
}

.cell-index {
    font-weight: 600;
}

.cell-value {
    font-weight: 700;
    color: var(--accent-blue);
    font-family: 'Courier New', monospace;
}

.cell-actions {
    text-align: center;
}

.btn-action {
    background: none;
    border: 1px solid transparent;
    cursor: pointer;
    font-size: 18px;
    padding: 6px 10px;
    border-radius: 4px;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 32px;
    min-height: 32px;
}

.btn-action.delete-btn {
    color: #e74c3c;
}

.btn-action:hover {
    background-color: #ffe8e8;
    border-color: #e74c3c;
    transform: scale(1.1);
}

.btn-action:active {
    transform: scale(0.95);
}

.loading-row td,
.error-row td {
    text-align: center;
    padding: 20px 16px;
    color: var(--text-muted);
    font-style: italic;
}

.error-row {
    background-color: #ffebee !important;
    color: #c62828;
    font-weight: 600;
}

.archive-empty-state {
    padding: 40px 20px;
    text-align: center;
    color: var(--text-muted);
    font-size: 14px;
}

.archive-pagination {
    padding: 12px 24px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 16px;
    border-top: 1px solid var(--border-color);
    background-color: var(--panel-bg);
}

#archivePageInfo {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-main);
    min-width: 80px;
    text-align: center;
}

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

.btn:disabled:hover {
    background-color: inherit;
    transform: none;
}


/* ==================== DELETE CONFIRMATION MODAL STYLES ==================== */

.delete-confirm-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 4000;
    animation: fadeIn 0.3s ease;
}

.delete-confirm-content {
    background: var(--card-bg);
    border-radius: 12px;
    width: 90%;
    max-width: 420px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    animation: slideUp 0.3s ease;
    overflow: hidden;
}

.delete-confirm-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: #ffebee;
}

.delete-confirm-header h3 {
    margin: 0;
    font-size: 18px;
    font-weight: 700;
    color: #c62828;
}

.delete-confirm-close {
    background: none;
    border: none;
    font-size: 24px;
    font-weight: 700;
    cursor: pointer;
    color: #c62828;
    padding: 4px 8px;
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.delete-confirm-close:hover {
    background-color: rgba(198, 40, 40, 0.1);
    transform: scale(1.15);
}

.delete-confirm-body {
    padding: 24px;
    text-align: center;
}

.delete-confirm-body p {
    margin: 0 0 12px 0;
    font-size: 15px;
    color: var(--text-main);
    line-height: 1.6;
}

.delete-confirm-body p:first-child {
    font-weight: 600;
    font-size: 16px;
}

.delete-confirm-subtext {
    font-size: 13px;
    color: var(--text-muted);
    font-style: italic;
}

.delete-confirm-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 12px;
    justify-content: flex-end;
    background-color: var(--panel-bg);
}

.delete-confirm-footer .btn {
    padding: 10px 20px;
    font-size: 14px;
    font-weight: 600;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-danger {
    background-color: #e74c3c;
    color: white;
}

.btn-danger:hover {
    background-color: #c0392b;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(192, 57, 43, 0.3);
}

.btn-danger:active {
    transform: translateY(0);
}

.delete-success-message {
    padding: 12px 16px;
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    border-radius: 6px;
    margin-bottom: 16px;
    animation: slideDown 0.3s ease;
    font-weight: 600;
    text-align: center;
}

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


/* Archive Tabs */
.archive-tabs {
    display: flex;
    gap: 0;
    border-bottom: 2px solid var(--border-color);
    margin-bottom: 0;
    flex-shrink: 0;
    background: var(--card-bg);
}

/* Bulk Operations Toolbar */
.bulk-operations-toolbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 24px;
    background: linear-gradient(135deg, #e3f2fd 0%, #f0f7ff 100%);
    border: 1px solid #90caf9;
    border-radius: 6px;
    margin-bottom: 16px;
    gap: 20px;
    flex-wrap: wrap;
}

.bulk-operations-toolbar.hidden {
    display: none;
}

.bulk-selection-info {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 1;
    min-width: 200px;
}

.bulk-count-badge {
    background-color: var(--accent-blue);
    color: white;
    padding: 4px 12px;
    border-radius: 20px;
    font-weight: 700;
    font-size: 13px;
    display: inline-block;
}

.bulk-selection-info span:not(.bulk-count-badge) {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-main);
}

.btn-clear-selection {
    background: none;
    border: 1px solid #90caf9;
    color: var(--accent-blue);
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    margin-left: auto;
}

.btn-clear-selection:hover {
    background-color: #e3f2fd;
    border-color: var(--accent-blue);
}

.bulk-action-buttons {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.bulk-action-buttons .btn {
    min-width: 140px;
}

/* Checkbox column styling */
.checkbox-column {
    width: 40px;
    padding: 12px 8px !important;
    text-align: center;
}

.select-all-checkbox,
.record-checkbox {
    cursor: pointer;
    width: 18px;
    height: 18px;
    accent-color: var(--accent-blue);
}

.archive-table td.checkbox-column {
    text-align: center;
    padding: 12px 8px !important;
}

.archive-table td.checkbox-column input[type="checkbox"] {
    cursor: pointer;
}

.tab-button {
    padding: 12px 20px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 14px;
    border-bottom: 3px solid transparent;
    transition: all 0.2s ease;
}

.tab-button:hover {
    color: var(--text-main);
}

.tab-button.active {
    color: var(--accent-green);
    border-bottom-color: var(--accent-green);
}

.archive-tab-content {
    display: none;
    flex: 1;
    overflow-y: auto;
    padding: 20px;
}

.archive-tab-content.active {
    display: block;
}

/* Analysis Section */
.analysis-section {
    background: var(--panel-bg);
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.analysis-controls {
    margin-bottom: 15px;
}

.index-selector {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.index-selector label {
    font-weight: 600;
    color: var(--text-main);
}

.index-selector select {
    padding: 10px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
    background-color: var(--card-bg);
}

.checkbox-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin: 15px 0;
    max-height: 300px;
    overflow-y: auto;
    padding: 10px;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 6px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    padding: 8px;
    border-radius: 4px;
    transition: background 0.2s ease;
}

.checkbox-label:hover {
    background: var(--panel-bg);
}

/* Recording Item Structured Layout */
.recording-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 8px;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.2s ease;
}

.recording-item:hover {
    background: var(--panel-bg);
}

.field-name {
    font-weight: 600;
    color: var(--accent-green);
    flex-shrink: 0;
}

.field-date {
    color: #666666;
    margin-left: auto;
    flex-shrink: 0;
    font-size: 13px;
}

.field-val {
    font-family: monospace;
    font-weight: 600;
    width: 80px;
    text-align: right;
    flex-shrink: 0;
    color: var(--accent-blue);
}

.field-val.negative {
    color: #c62828;
}

.record-checkbox {
    cursor: pointer;
    width: 18px;
    height: 18px;
}

.analysis-buttons {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

.analysis-buttons .btn {
    flex: 1;
}

/* Statistics Results */
.statistics-results,
.trend-results {
    background: var(--panel-bg);
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 20px;
}

.statistics-results h3,
.trend-results h3 {
    margin-top: 0;
    color: var(--text-main);
    border-bottom: 2px solid var(--accent-green);
    padding-bottom: 10px;
}

.statistics-table,
.trend-summary-table {
    width: 100%;
    border-collapse: collapse;
    margin: 15px 0;
    background: var(--card-bg);
    border-radius: 6px;
    overflow: hidden;
}

.statistics-table thead,
.trend-summary-table thead {
    background: var(--accent-light);
}

.statistics-table th,
.trend-summary-table th {
    padding: 12px;
    text-align: left;
    font-weight: 600;
    color: var(--accent-darker);
    border-bottom: 1px solid var(--border-color);
}

.statistics-table td,
.trend-summary-table td {
    padding: 10px 12px;
    border-bottom: 1px solid var(--border-color);
}

.statistics-table tr:hover,
.trend-summary-table tr:hover {
    background: var(--panel-bg);
}

.value-cell {
    text-align: right;
    font-family: 'Courier New', monospace;
    font-size: 13px;
    color: #1565c0;
    font-weight: 600;
}

.value-cell.text-negative {
    color: #b71c1c;
}

/* Trend Chart */
.trend-chart-container {
    background: var(--card-bg);
    padding: 15px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    margin: 15px 0;
    position: relative;
    height: 400px;
}

.trend-chart-container canvas {
    max-height: 100%;
}

/* Export Buttons */
.export-buttons {
    display: flex;
    gap: 10px;
    margin-top: 15px;
}

.export-buttons .btn {
    flex: 1;
}

/* Responsive */
@media (max-width: 768px) {
    .archive-tabs {
        flex-wrap: wrap;
    }

    .analysis-buttons,
    .export-buttons {
        flex-direction: column;
    }

    .trend-chart-container {
        height: 300px;
    }

    .checkbox-list {
        max-height: 200px;
    }

    .bulk-operations-toolbar {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }

    .bulk-selection-info {
        flex-direction: row;
        justify-content: space-between;
        margin-bottom: 0;
    }

    .bulk-action-buttons {
        justify-content: stretch;
    }

    .bulk-action-buttons .btn {
        flex: 1;
    }

    .btn-clear-selection {
        margin-left: 0;
    }
}

/* Mobile-specific styles for small screens (phones) */
@media (max-width: 480px) {
    /* Stack header elements in a more compact layout on mobile */
    .app-header {
        padding: 8px 12px;
        gap: 6px;
        justify-content: flex-start;
    }

    /* Back button stays on left */
    .btn-back {
        order: 1;
        padding: 5px 8px;
        font-size: 12px;
        flex-basis: auto;
    }

    /* Archive button and greeting container wrap to next row */
    .btn-archive {
        order: 2;
        padding: 5px 10px;
        font-size: 11px;
        flex-basis: auto;
    }

    /* User greeting on second row */
    .user-greeting-container {
        order: 5;
        flex: 0 1 auto;
        justify-content: flex-start;
        margin-top: 6px;
        width: 100%;
    }

    .user-greeting {
        font-size: 11px;
        gap: 4px;
    }

    .user-greeting strong {
        max-width: 120px;
        overflow: hidden;
        text-overflow: ellipsis;
    }

    .btn-logout {
        padding: 4px 8px;
        font-size: 10px;
    }

    /* Language switcher on second row right side */
    .language-switcher {
        order: 6;
        flex-basis: auto;
        align-self: flex-end;
        margin-top: 6px;
        margin-left: auto;
    }

    .lang-btn {
        padding: 4px 6px;
        font-size: 9px;
    }

    /* Main content padding */
    .container {
        padding: 20px 15px;
    }

    /* Maps row stack on mobile */
    .map-row {
        grid-template-columns: 1fr;
        gap: 12px;
    }

    /* Metric grid adjust for mobile */
    .metric-grid {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    /* Inspection title adjust */
    .inspection-title {
        font-size: 14px;
    }

    /* Selector row stack */
    .selector-row {
        flex-direction: column;
        gap: 8px;
    }

    /* Save section adjust */
    .save-result-section {
        padding: 12px;
    }

    .save-result-section input {
        margin-bottom: 8px;
    }
}

/* Icon styling */
.para-icon {
    height: 4em;
    margin: 5px;
    width:auto;
    vertical-align: middle;
}


/* ==================== TUTORIAL STYLES ==================== */

.tutorial-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 9998;
    pointer-events: none;
    transition: all 0.3s ease;
    
    --highlight-top: 0px;
    --highlight-left: 0px;
    --highlight-width: 0px;
    --highlight-height: 0px;
}

.tutorial-overlay.hidden {
    display: none !important;
}

.tutorial-overlay::after {
    content: '';
    position: fixed;
    top: var(--highlight-top);
    left: var(--highlight-left);
    width: var(--highlight-width);
    height: var(--highlight-height);
    border: 3px solid var(--accent-green);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.05);
    pointer-events: auto;
    cursor: pointer;
    box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.7),
                inset 0 0 0 2px var(--accent-green);
    z-index: 9999;
}

.tutorial-tooltip {
    position: fixed;
    z-index: 10000;
    max-width: 360px;
    background: var(--card-bg);
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
    padding: 0;
    animation: tutorialSlideIn 0.3s ease;
}

@keyframes tutorialSlideIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.tutorial-tooltip.hidden {
    display: none !important;
}

.tutorial-tooltip-content {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.tutorial-tooltip-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--accent-green);
}

.tutorial-tooltip-header h3 {
    margin: 0;
    font-size: 18px;
    font-weight: 700;
    color: var(--accent-green);
    flex: 1;
}

.tutorial-close-btn {
    background: none;
    border: none;
    font-size: 24px;
    font-weight: 700;
    color: #e74c3c;
    cursor: pointer;
    padding: 0;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: all 0.2s;
    flex-shrink: 0;
}

.tutorial-close-btn:hover {
    background-color: #ffe8e8;
    transform: scale(1.2);
}

.tutorial-close-btn:active {
    transform: scale(0.95);
}

.tutorial-description {
    margin: 0;
    font-size: 14px;
    line-height: 1.6;
    color: #334155;
}

.tutorial-action {
    margin: 0;
    font-size: 13px;
    font-weight: 600;
    color: var(--accent-blue);
    padding: 8px 12px;
    background-color: var(--accent-light);
    border-radius: 6px;
    border-left: 3px solid var(--accent-blue);
}

.tutorial-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
}

.tutorial-btn {
    padding: 8px 14px;
    font-size: 12px;
    font-weight: 600;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
    flex: 1;
}

.tutorial-btn-primary {
    background-color: var(--accent-green);
    color: white;
    box-shadow: 0 2px 8px rgba(46, 125, 50, 0.2);
}

.tutorial-btn-primary:hover {
    background-color: var(--accent-darker);
    box-shadow: 0 4px 12px rgba(46, 125, 50, 0.3);
    transform: translateY(-1px);
}

.tutorial-btn-primary:active {
    transform: translateY(0);
}

.tutorial-btn-secondary {
    background-color: var(--panel-bg);
    color: var(--text-main);
    border: 1px solid var(--border-color);
}

.tutorial-btn-secondary:hover {
    background-color: var(--accent-light);
    border-color: var(--accent-green);
}

.tutorial-btn-secondary:active {
    transform: translateY(0);
}

.tutorial-progress {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    padding: 6px 12px;
    background-color: var(--panel-bg);
    border-radius: 6px;
}

/* Tutorial button in app header */
.tutorial-btn-launcher {
    padding: 6px 12px;
    font-size: 12px;
    font-weight: 600;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--card-bg);
    color: var(--text-main);
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
    flex-shrink: 0;
}

.tutorial-btn-launcher:hover {
    background-color: var(--accent-light);
    border-color: var(--accent-green);
    color: var(--accent-green);
}

.tutorial-btn-launcher:active {
    transform: scale(0.98);
}

/* Mobile responsiveness */
@media (max-width: 768px) {
    .tutorial-tooltip {
        max-width: 90vw;
        margin: 0 20px;
    }
    
    .tutorial-tooltip-content {
        padding: 16px;
    }
    
    .tutorial-tooltip-header h3 {
        font-size: 16px;
    }
    
    .tutorial-description {
        font-size: 13px;
    }
    
    .tutorial-controls {
        flex-wrap: wrap;
        gap: 6px;
    }
    
    .tutorial-btn {
        padding: 6px 10px;
        font-size: 11px;
        flex: 0 1 auto;
    }
}