/* NetProbe - Professional Network Test UI */

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary: #64748b;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --bg: #f8fafc;
    --bg-card: #ffffff;
    --text: #1e293b;
    --text-light: #64748b;
    --border: #e2e8f0;
    --shadow: 0 1px 3px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
header {
    text-align: center;
    padding: 40px 0 30px;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 5px;
}

.subtitle {
    color: var(--text-light);
    font-size: 1.1rem;
}

/* Sections */
section {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 25px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
}

section h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text);
    border-bottom: 2px solid var(--border);
    padding-bottom: 10px;
}

section h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text);
}

/* Config Grid */
.config-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 25px;
}

@media (max-width: 600px) {
    .config-grid {
        grid-template-columns: 1fr;
    }
}

.config-group {
    padding: 15px;
    background: var(--bg);
    border-radius: 8px;
}

/* Checkboxes */
.checkbox-container {
    display: flex;
    align-items: center;
    padding: 8px 0;
    cursor: pointer;
    font-size: 0.95rem;
}

.checkbox-container input {
    margin-right: 10px;
    width: 18px;
    height: 18px;
    accent-color: var(--primary);
}

/* Estimation Box */
.estimation-box {
    margin-top: 15px;
    padding: 12px 15px;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border: 1px solid #bae6fd;
    border-radius: 8px;
    font-size: 0.9rem;
}

.estimation-content {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.estimation-placeholder {
    color: var(--text-light);
    font-style: italic;
}

.estimation-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.estimation-row .icon {
    font-size: 1rem;
    width: 20px;
}

.estimation-row .label {
    color: var(--text-light);
    min-width: 80px;
}

.estimation-row .value {
    font-weight: 600;
    color: var(--text);
}

/* Options */
.option-row {
    display: flex;
    flex-direction: column;
    margin-bottom: 15px;
}

.option-row label {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 5px;
}

.option-row select,
.option-row input[type="text"] {
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.95rem;
    background: var(--bg-card);
}

.option-row select:focus,
.option-row input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

/* Buttons */
.btn-primary {
    width: 100%;
    padding: 15px 30px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
}

.btn-primary:hover {
    background: var(--primary-dark);
}

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

.btn-primary:disabled {
    background: var(--secondary);
    cursor: not-allowed;
}

.btn-secondary {
    padding: 12px 25px;
    background: var(--bg);
    color: var(--primary);
    border: 2px solid var(--primary);
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

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

/* Progress */
.progress-section {
    text-align: left;
}

.progress-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 25px;
    align-items: start;
}

@media (max-width: 700px) {
    .progress-layout {
        grid-template-columns: 1fr;
    }
}

.progress-main {
    text-align: center;
}

.progress-bar {
    height: 8px;
    background: var(--border);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 15px;
}

.progress-fill {
    height: 100%;
    background: var(--primary);
    width: 0%;
    transition: width 0.3s ease;
}

#progress-text {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Progress Info Panel */
.progress-info {
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
    color: white;
    padding: 20px;
    border-radius: 10px;
    min-height: 120px;
}

.info-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: #60a5fa;
}

.info-description {
    font-size: 0.9rem;
    line-height: 1.6;
    color: #cbd5e1;
}

/* Simple Progress Bar */
.simple-progress {
    text-align: center;
    padding: 30px 20px;
}

.simple-progress-bar {
    height: 12px;
    background: var(--border);
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 15px;
    max-width: 500px;
    margin-left: auto;
    margin-right: auto;
}

.simple-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary) 0%, #60a5fa 100%);
    width: 0%;
    transition: width 0.3s ease;
    border-radius: 6px;
}

.simple-progress-text {
    color: var(--text-light);
    font-size: 1rem;
    margin: 0;
}

/* Results Grid */
.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.result-card {
    background: var(--bg);
    border-radius: 10px;
    padding: 20px;
    text-align: center;
}

.result-card .label {
    font-size: 0.85rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.result-card .value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text);
}

.result-card .unit {
    font-size: 1rem;
    color: var(--text-light);
    font-weight: 400;
}

.result-card.success .value { color: var(--success); }
.result-card.warning .value { color: var(--warning); }
.result-card.danger .value { color: var(--danger); }

/* Wide result card for compact display */
.result-card-wide {
    background: var(--bg);
    border-radius: 10px;
    padding: 20px;
    grid-column: 1 / -1;
}

.result-card-wide .label {
    font-size: 0.85rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 12px;
}

/* Speed results (Download + Upload combined) */
.speed-results {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    justify-content: center;
}

.speed-item {
    display: flex;
    align-items: baseline;
    gap: 8px;
    padding: 15px 25px;
    background: var(--bg-card);
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.speed-item.success .speed-value { color: var(--success); }
.speed-item.warning .speed-value { color: var(--warning); }
.speed-item.danger .speed-value { color: var(--danger); }

.speed-icon {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-light);
}

.speed-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text);
}

.speed-unit {
    font-size: 1rem;
    color: var(--text-light);
}

.speed-detail {
    font-size: 0.8rem;
    color: var(--text-light);
    margin-left: 8px;
}

/* Metrics row (Latency compact) */
.metrics-row {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    justify-content: center;
}

.metric {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 12px 18px;
    background: var(--bg-card);
    border-radius: 8px;
    min-width: 80px;
}

.metric.success .metric-value { color: var(--success); }
.metric.warning .metric-value { color: var(--warning); }
.metric.danger .metric-value { color: var(--danger); }

.metric-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text);
    line-height: 1.2;
}

.metric-unit {
    font-size: 0.85rem;
    color: var(--text-light);
    font-weight: 400;
}

.metric-label {
    font-size: 0.75rem;
    color: var(--text-light);
    text-transform: uppercase;
    letter-spacing: 0.3px;
    margin-top: 4px;
}

/* MOS compact display */
.mos-compact {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    align-items: center;
    justify-content: center;
}

.mos-score {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px 30px;
    background: var(--bg-card);
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.mos-score .mos-value {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1;
}

.mos-score .mos-max {
    font-size: 1rem;
    color: var(--text-light);
    margin-top: 2px;
}

.mos-score .mos-quality {
    font-size: 0.9rem;
    font-weight: 600;
    margin-top: 8px;
    padding: 4px 12px;
    border-radius: 20px;
    background: var(--bg);
}

.mos-score.mos-excellent .mos-value { color: var(--success); }
.mos-score.mos-good .mos-value { color: #22c55e; }
.mos-score.mos-acceptable .mos-value { color: var(--warning); }
.mos-score.mos-poor .mos-value { color: #f97316; }
.mos-score.mos-bad .mos-value { color: var(--danger); }

.mos-metrics {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.mos-metric {
    font-size: 0.9rem;
    padding: 8px 12px;
    background: var(--bg-card);
    border-radius: 6px;
}

.mos-metric-label {
    color: var(--text-light);
    font-weight: 500;
}

@media (max-width: 600px) {
    .speed-results {
        flex-direction: column;
        align-items: center;
    }

    .speed-item {
        width: 100%;
        justify-content: center;
    }

    .metrics-row {
        gap: 10px;
    }

    .metric {
        min-width: 70px;
        padding: 10px 12px;
    }

    .metric-value {
        font-size: 1.2rem;
    }

    .mos-compact {
        flex-direction: column;
    }

    .mos-metrics {
        grid-template-columns: 1fr;
    }
}

/* Sub-values for latency */
.result-card .sub-values {
    margin-top: 10px;
    font-size: 0.85rem;
    color: var(--text-light);
}

.result-card .sub-values span {
    display: inline-block;
    margin: 0 8px;
}

/* Charts */
.charts-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 25px;
}

@media (max-width: 800px) {
    .charts-row {
        grid-template-columns: 1fr;
    }
}

.chart-container {
    margin-top: 25px;
    padding: 20px;
    background: var(--bg);
    border-radius: 10px;
}

.chart-container.chart-half {
    margin-top: 0;
}

.chart-container h3 {
    margin-bottom: 15px;
    font-size: 1rem;
    color: var(--text);
}

.chart-container canvas {
    max-height: 280px;
}

#tcpwindow-chart {
    max-height: 300px;
}

/* Export Section */
.export-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 25px;
}

@media (max-width: 600px) {
    .export-grid {
        grid-template-columns: 1fr;
    }
}

.export-group {
    display: flex;
    flex-direction: column;
}

.export-group label {
    font-size: 0.9rem;
    color: var(--text-light);
    margin-bottom: 5px;
}

.export-group input[type="text"],
.export-group textarea {
    padding: 10px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.95rem;
    font-family: inherit;
}

.export-group input:focus,
.export-group textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.logo-group, .full-width {
    grid-column: span 2;
}

@media (max-width: 600px) {
    .logo-group, .full-width {
        grid-column: span 1;
    }
}

#logo-preview {
    margin-top: 10px;
}

#logo-preview img {
    max-width: 150px;
    max-height: 80px;
    border-radius: 4px;
}

.info-text {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-bottom: 20px;
    padding: 10px;
    background: #fef3c7;
    border-radius: 6px;
    border-left: 3px solid var(--warning);
}

/* AI Diagnosis Section */
.diagnosis-section {
    background: linear-gradient(135deg, #faf5ff, #f5f3ff);
    border: 2px solid #e9d5ff;
}

.diagnosis-section h2 {
    color: #7c3aed;
    border-bottom-color: #e9d5ff;
}

.diagnosis-section .info-text {
    background: white;
    border-left-color: #8b5cf6;
}

.diagnosis-loading {
    color: #8b5cf6;
    font-size: 1.1rem;
    text-align: center;
    padding: 30px;
    animation: pulse 1.5s infinite;
}

.diagnosis-progress {
    padding: 30px;
    text-align: center;
}

.diagnosis-progress-bar {
    width: 100%;
    height: 12px;
    background: #e9d5ff;
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 15px;
}

.diagnosis-progress-fill {
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, #8b5cf6 0%, #a78bfa 25%, #c4b5fd 50%, #a78bfa 75%, #8b5cf6 100%);
    background-size: 300% 100%;
    border-radius: 6px;
    transition: width 0.2s ease-out;
    animation: progress-shimmer 1.5s ease-in-out infinite;
}

@keyframes progress-shimmer {
    0% { background-position: 100% 0; }
    100% { background-position: -100% 0; }
}

/* Pulsing glow effect for progress bar */
.diagnosis-progress-bar {
    position: relative;
    animation: progress-glow 2s ease-in-out infinite;
}

@keyframes progress-glow {
    0%, 100% { box-shadow: 0 0 5px rgba(139, 92, 246, 0.3); }
    50% { box-shadow: 0 0 15px rgba(139, 92, 246, 0.6); }
}

.diagnosis-progress-text {
    color: #7c3aed;
    font-size: 0.95rem;
    font-weight: 500;
    margin: 0;
}

.btn-diagnosis {
    background: linear-gradient(135deg, #8b5cf6, #6366f1);
    color: white;
    border: none;
    padding: 12px 24px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-diagnosis:hover {
    background: linear-gradient(135deg, #7c3aed, #4f46e5);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(139, 92, 246, 0.3);
}

.btn-diagnosis:disabled {
    background: #9ca3af;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.ai-diagnosis-result {
    margin-top: 20px;
    padding: 20px;
    background: linear-gradient(135deg, #faf5ff, #f5f3ff);
    border: 1px solid #e9d5ff;
    border-radius: 12px;
    white-space: pre-wrap;
    font-size: 0.95rem;
    line-height: 1.7;
    color: var(--text);
}

.ai-diagnosis-result h4 {
    color: #7c3aed;
    margin-bottom: 10px;
    font-size: 1.1rem;
}

.ai-diagnosis-result .diagnosis-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid #e9d5ff;
}

.ai-diagnosis-result .diagnosis-model {
    font-size: 0.8rem;
    color: #8b5cf6;
    background: white;
    padding: 4px 10px;
    border-radius: 20px;
}

.ai-diagnosis-result .diagnosis-content {
    white-space: pre-wrap;
}

/* Footer */
footer {
    text-align: center;
    padding: 30px 0;
    color: var(--text-light);
    font-size: 0.9rem;
}

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

.btn-loading {
    animation: pulse 1.5s infinite;
}

/* MOS quality indicators */
.mos-excellent { color: var(--success); }
.mos-good { color: #22c55e; }
.mos-acceptable { color: var(--warning); }
.mos-poor { color: #f97316; }
.mos-bad { color: var(--danger); }

/* Help icon tooltip */
.help-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    margin-left: 8px;
    background: var(--primary);
    color: white;
    border-radius: 50%;
    font-size: 12px;
    font-weight: 700;
    cursor: help;
    position: relative;
    flex-shrink: 0;
}

.help-icon:hover {
    background: var(--primary-dark);
}

.help-icon:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 10px);
    left: 50%;
    transform: translateX(-50%);
    width: 280px;
    padding: 12px 15px;
    background: var(--text);
    color: white;
    font-size: 0.85rem;
    font-weight: 400;
    line-height: 1.5;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    pointer-events: none;
}

.help-icon:hover::before {
    content: '';
    position: absolute;
    bottom: calc(100% + 2px);
    left: 50%;
    transform: translateX(-50%);
    border: 8px solid transparent;
    border-top-color: var(--text);
    z-index: 1000;
}

/* Adjust tooltip position on smaller screens */
@media (max-width: 600px) {
    .help-icon:hover::after {
        width: 220px;
        left: auto;
        right: -10px;
        transform: none;
    }

    .help-icon:hover::before {
        left: auto;
        right: 5px;
        transform: none;
    }
}

/* Real-time speed histogram */
.realtime-speed-container {
    margin-top: 20px;
    padding: 20px;
    background: var(--bg-card);
    border-radius: 12px;
    box-shadow: var(--shadow);
}

.realtime-speed-header {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 8px;
    margin-bottom: 15px;
}

.realtime-speed-icon {
    font-size: 2rem;
    font-weight: 700;
}

.realtime-speed-icon.download { color: var(--primary); }
.realtime-speed-icon.upload { color: var(--success); }

.realtime-speed-value {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text);
    font-variant-numeric: tabular-nums;
}

.realtime-speed-unit {
    font-size: 1.2rem;
    color: var(--text-light);
}

.realtime-histogram {
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: 3px;
    height: 100px;
    padding: 10px 0;
    background: var(--bg);
    border-radius: 8px;
    overflow: hidden;
}

.realtime-histogram .bar {
    width: 8px;
    min-height: 4px;
    background: var(--primary);
    border-radius: 2px 2px 0 0;
    transition: height 0.15s ease-out;
}

.realtime-histogram .bar.upload {
    background: var(--success);
}

.realtime-histogram .bar.low {
    background: var(--danger);
}

.realtime-histogram .bar.medium {
    background: var(--warning);
}

.realtime-histogram .bar.high {
    background: var(--success);
}

.realtime-stats {
    display: flex;
    justify-content: center;
    gap: 25px;
    margin-top: 12px;
    font-size: 0.9rem;
    color: var(--text-light);
}

.realtime-stats b {
    color: var(--text);
    font-weight: 600;
}

/* Compact results */
.results-grid {
    display: grid;
    gap: 12px;
}

.result-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 12px;
    padding: 15px;
    background: var(--bg-card);
    border-radius: 10px;
    box-shadow: var(--shadow);
}

.result-item {
    text-align: center;
    padding: 8px;
}

.result-item .label {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--text-light);
    margin-bottom: 4px;
}

.result-item .value {
    font-size: 1.4rem;
    font-weight: 700;
}

.result-item .unit {
    font-size: 0.85rem;
    color: var(--text-light);
}

.result-item.success .value { color: var(--success); }
.result-item.warning .value { color: var(--warning); }
.result-item.danger .value { color: var(--danger); }

/* Stability indicator */
.stability-indicator {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.stability-indicator.excellent {
    background: rgba(16, 185, 129, 0.15);
    color: var(--success);
}

.stability-indicator.good {
    background: rgba(37, 99, 235, 0.15);
    color: var(--primary);
}

.stability-indicator.fair {
    background: rgba(245, 158, 11, 0.15);
    color: var(--warning);
}

.stability-indicator.poor {
    background: rgba(239, 68, 68, 0.15);
    color: var(--danger);
}

.stability-indicator {
    cursor: help;
    position: relative;
}

.stability-label {
    font-size: 0.7rem;
    opacity: 0.8;
    font-weight: 500;
}

/* Custom tooltip for stability */
.stability-indicator[title]:hover::after {
    content: attr(title);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    width: 280px;
    padding: 10px 12px;
    background: var(--text);
    color: white;
    font-size: 0.8rem;
    font-weight: 400;
    line-height: 1.4;
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    pointer-events: none;
    white-space: normal;
}

.stability-indicator[title]:hover::before {
    content: '';
    position: absolute;
    bottom: calc(100%);
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: var(--text);
    z-index: 1000;
}

/* Real-time transfer graph */
.realtime-graph-container {
    margin-top: 20px;
    padding: 20px;
    background: var(--bg-card);
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 2px solid var(--border);
}

.realtime-graph-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}

.realtime-graph-title {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text);
}

.realtime-graph-title.download {
    color: var(--primary);
}

.realtime-graph-title.upload {
    color: var(--success);
}

.realtime-graph-info {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text);
    font-variant-numeric: tabular-nums;
    padding: 5px 12px;
    background: var(--bg);
    border-radius: 20px;
}

.realtime-graph-canvas-wrapper {
    position: relative;
    height: 200px;
    margin-bottom: 10px;
}

.realtime-graph-legend {
    display: flex;
    justify-content: center;
    gap: 25px;
    padding-top: 10px;
    border-top: 1px solid var(--border);
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-light);
}

.legend-color {
    width: 12px;
    height: 12px;
    border-radius: 3px;
}

@media (max-width: 600px) {
    .realtime-graph-header {
        flex-direction: column;
        gap: 10px;
        text-align: center;
    }

    .realtime-graph-canvas-wrapper {
        height: 180px;
    }

    .realtime-graph-legend {
        flex-direction: column;
        gap: 8px;
        align-items: center;
    }
}

/* Completed transfer charts section */
.completed-charts-section {
    margin-top: 25px;
}

.completed-charts-section h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text);
}

.completed-charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 20px;
}

@media (max-width: 600px) {
    .completed-charts-grid {
        grid-template-columns: 1fr;
    }
}

.completed-chart-item {
    background: var(--bg-card);
    border-radius: 12px;
    padding: 15px;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
}

.completed-chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
}

.completed-chart-title {
    font-size: 1rem;
    font-weight: 600;
}

.completed-chart-title.download {
    color: var(--primary);
}

.completed-chart-title.upload {
    color: var(--success);
}

.completed-chart-info {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text);
    padding: 4px 10px;
    background: var(--bg);
    border-radius: 15px;
}

.completed-chart-canvas-wrapper {
    position: relative;
    height: 180px;
    margin-bottom: 10px;
}

.completed-chart-legend {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-top: 10px;
    border-top: 1px solid var(--border);
    font-size: 0.8rem;
}

.legend-section {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 10px;
}

.legend-title {
    font-weight: 600;
    color: var(--text-light);
    margin-right: 5px;
}

.legend-average {
    padding-top: 6px;
    border-top: 1px dashed var(--border);
}

.legend-average .global-avg {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--text);
}

.legend-color.legend-dashed {
    background-image: repeating-linear-gradient(
        90deg,
        transparent,
        transparent 2px,
        currentColor 2px,
        currentColor 4px
    ) !important;
    background-color: transparent !important;
    border: 2px solid #ef4444;
}

/* Latency destinations selector */
.latency-destinations {
    margin-left: 28px;
    margin-top: 8px;
    margin-bottom: 10px;
    padding: 10px 12px;
    background: rgba(37, 99, 235, 0.05);
    border-left: 3px solid var(--primary);
    border-radius: 0 6px 6px 0;
}

.destinations-label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 8px;
}

.checkbox-container.checkbox-small {
    font-size: 0.85rem;
    padding-left: 22px;
    margin-bottom: 6px;
}

.checkbox-container.checkbox-small .checkmark.small {
    width: 16px;
    height: 16px;
}

.checkbox-container.checkbox-small .checkmark.small::after {
    left: 5px;
    top: 2px;
    width: 4px;
    height: 8px;
}

.dest-info {
    font-size: 0.75rem;
    color: var(--text-light);
    margin-left: 4px;
}

/* Latency gauge cards */
.latency-results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-top: 15px;
}

.latency-gauge-card {
    background: white;
    border-radius: 10px;
    padding: 15px;
    text-align: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.latency-gauge-card .dest-name {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 10px;
}

.latency-gauge {
    position: relative;
    width: 120px;
    height: 60px;
    margin: 0 auto 10px;
}

.latency-gauge-bg {
    position: absolute;
    width: 120px;
    height: 60px;
    border-radius: 60px 60px 0 0;
    background: linear-gradient(90deg, #22c55e 0%, #eab308 50%, #ef4444 100%);
    overflow: hidden;
}

.latency-gauge-mask {
    position: absolute;
    bottom: 0;
    left: 10px;
    right: 10px;
    height: 50px;
    background: white;
    border-radius: 50px 50px 0 0;
}

.latency-gauge-needle {
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 3px;
    height: 50px;
    background: #1e293b;
    transform-origin: bottom center;
    transform: rotate(-90deg);
    transition: transform 0.5s ease-out;
    border-radius: 2px;
}

.latency-gauge-value {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin-top: 8px;
    margin-bottom: 4px;
}

.latency-gauge-value .unit {
    font-size: 0.85rem;
    font-weight: 400;
    color: var(--text-light);
}

.latency-gauge-value.excellent { color: #22c55e; }
.latency-gauge-value.good { color: #84cc16; }
.latency-gauge-value.fair { color: #eab308; }
.latency-gauge-value.poor { color: #f97316; }
.latency-gauge-value.bad { color: #ef4444; }

.latency-gauge-labels {
    display: flex;
    justify-content: space-between;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text);
    margin-top: 6px;
    padding: 0 5px;
}

.latency-details {
    display: flex;
    justify-content: center;
    gap: 15px;
    font-size: 1rem;
    color: var(--text);
    margin-top: 10px;
    font-weight: 600;
}

.latency-details span {
    display: flex;
    align-items: center;
    gap: 3px;
    padding: 4px 8px;
    background: var(--bg);
    border-radius: 4px;
}

.packet-loss-indicator {
    display: inline-block;
    margin-top: 8px;
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 0.85rem;
    font-weight: 600;
    background: #dcfce7;
    color: #166534;
}

.packet-loss-indicator.loss-minor {
    background: #fef9c3;
    color: #854d0e;
}

.packet-loss-indicator.loss-warning {
    background: #fed7aa;
    color: #c2410c;
}

.packet-loss-indicator.loss-critical {
    background: #fecaca;
    color: #dc2626;
    animation: pulse-loss 1.5s infinite;
}

@keyframes pulse-loss {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

.latency-quality-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-top: 8px;
}

.latency-quality-badge.excellent { background: #dcfce7; color: #166534; }
.latency-quality-badge.good { background: #ecfccb; color: #3f6212; }
.latency-quality-badge.fair { background: #fef9c3; color: #854d0e; }
.latency-quality-badge.poor { background: #fed7aa; color: #9a3412; }
.latency-quality-badge.bad { background: #fecaca; color: #991b1b; }

.link-detected {
    font-size: 0.8rem;
    color: #6b7280;
    font-style: italic;
    margin-left: 8px;
}

.custom-dest-row {
    display: flex;
    align-items: center;
    gap: 8px;
}

.custom-dest-row .checkbox-container {
    margin-bottom: 0;
}

.dest-custom-input {
    width: 140px;
    padding: 4px 8px;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-size: 0.8rem;
}

.dest-custom-input.wide {
    width: 100%;
    margin-top: 4px;
}

.dest-custom-input:disabled {
    background: var(--bg);
    color: var(--text-light);
}

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

/* ========================================
   Bidirectional Test Results
   ======================================== */

.bidirectional-container {
    background: linear-gradient(135deg, #667eea11, #764ba211);
    border: 1px solid #667eea33;
}

.bidirectional-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
}

@media (max-width: 768px) {
    .bidirectional-grid {
        grid-template-columns: 1fr;
    }
}

.bidirectional-card {
    background: white;
    border-radius: 12px;
    padding: 20px;
    text-align: center;
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
    border: 2px solid transparent;
}

.bidirectional-card.outgoing {
    border-color: #3b82f6;
    background: linear-gradient(135deg, #3b82f611, white);
}

.bidirectional-card.incoming {
    border-color: #10b981;
    background: linear-gradient(135deg, #10b98111, white);
}

.bidirectional-card.incoming.error {
    border-color: #f59e0b;
    background: linear-gradient(135deg, #f59e0b11, white);
}

.bidirectional-card.comparison {
    border-color: #8b5cf6;
    background: linear-gradient(135deg, #8b5cf611, white);
}

.bidirectional-card.comparison.symmetric {
    border-color: #10b981;
}

.bidirectional-card.comparison.asymmetric-in,
.bidirectional-card.comparison.asymmetric-out {
    border-color: #f59e0b;
}

.bi-direction {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 15px;
}

.bi-arrow {
    font-size: 1.5rem;
    font-weight: bold;
}

.outgoing .bi-arrow { color: #3b82f6; }
.incoming .bi-arrow { color: #10b981; }

.bi-label {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text);
}

.bi-value {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 5px;
}

.bi-value .unit {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-light);
}

.bi-value.excellent { color: #22c55e; }
.bi-value.good { color: #84cc16; }
.bi-value.fair { color: #eab308; }
.bi-value.poor { color: #f97316; }
.bi-value.bad { color: #ef4444; }

.bi-sublabel {
    font-size: 0.8rem;
    color: var(--text-light);
    margin-bottom: 10px;
}

.bi-details {
    display: flex;
    justify-content: center;
    gap: 12px;
    font-size: 0.75rem;
    color: var(--text-light);
    margin-top: 10px;
}

.bi-packets {
    font-size: 0.75rem;
    color: var(--text-light);
    margin-top: 8px;
}

.bi-packets .loss {
    color: #ef4444;
    font-weight: 600;
}

.bi-diff {
    font-size: 2rem;
    font-weight: 700;
    margin: 10px 0;
}

.bi-diff.symmetric { color: #10b981; }
.bi-diff.asymmetric-in { color: #f59e0b; }
.bi-diff.asymmetric-out { color: #f59e0b; }

.bi-analysis {
    font-size: 0.9rem;
    font-weight: 500;
    padding: 8px 12px;
    border-radius: 6px;
    background: var(--bg);
}

.bi-client-ip {
    font-size: 0.75rem;
    color: var(--text-light);
    margin-top: 12px;
    font-family: monospace;
}

.bi-error {
    color: #ef4444;
    font-size: 0.85rem;
    margin: 10px 0;
}

.bi-hint {
    font-size: 0.75rem;
    color: var(--text-light);
    margin-top: 10px;
    padding: 8px;
    background: #fef3c7;
    border-radius: 6px;
}

/* ========================================
   MOS VoIP Results Display
   ======================================== */

.mos-results-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 25px;
    margin-bottom: 15px;
}

@media (max-width: 700px) {
    .mos-results-container {
        grid-template-columns: 1fr;
    }
}

.mos-gauge-section,
.mos-metrics-section {
    background: var(--bg-card);
    border-radius: 10px;
    padding: 20px;
    text-align: center;
}

.mos-gauge-section h4,
.mos-metrics-section h4 {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 15px;
}

/* MOS Gauge */
.mos-gauge {
    position: relative;
    width: 180px;
    height: 100px;
    margin: 0 auto 10px;
}

.mos-gauge-bg {
    position: absolute;
    width: 180px;
    height: 90px;
    border-radius: 180px 180px 0 0;
    background: linear-gradient(90deg,
        #ef4444 0%,
        #f97316 25%,
        #f59e0b 40%,
        #84cc16 60%,
        #22c55e 75%,
        #10b981 100%
    );
    overflow: hidden;
}

.mos-gauge-mask {
    position: absolute;
    width: 120px;
    height: 60px;
    background: var(--bg-card);
    border-radius: 120px 120px 0 0;
    top: 30px;
    left: 30px;
}

.mos-gauge-needle {
    position: absolute;
    width: 4px;
    height: 70px;
    background: linear-gradient(to top, #1e293b 0%, #475569 100%);
    border-radius: 2px;
    bottom: 0;
    left: 88px;
    transform-origin: bottom center;
    transform: rotate(0deg);
    transition: transform 0.5s ease-out;
    z-index: 5;
}

.mos-gauge-needle::after {
    content: '';
    position: absolute;
    width: 12px;
    height: 12px;
    background: #1e293b;
    border-radius: 50%;
    bottom: -6px;
    left: -4px;
}

.mos-gauge-value {
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    margin-top: 8px;
    margin-bottom: 4px;
}

.mos-gauge-value.excellent { color: #10b981; }
.mos-gauge-value.good { color: #22c55e; }
.mos-gauge-value.fair { color: #f59e0b; }
.mos-gauge-value.poor { color: #f97316; }
.mos-gauge-value.bad { color: #ef4444; }

.mos-gauge-labels {
    display: flex;
    justify-content: space-between;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text);
    padding: 0 10px;
    margin-bottom: 10px;
}

.mos-quality-badge {
    display: inline-block;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.mos-quality-badge.excellent { background: #dcfce7; color: #166534; }
.mos-quality-badge.good { background: #ecfccb; color: #3f6212; }
.mos-quality-badge.fair { background: #fef9c3; color: #854d0e; }
.mos-quality-badge.poor { background: #fed7aa; color: #9a3412; }
.mos-quality-badge.bad { background: #fecaca; color: #991b1b; }

.mos-method {
    font-size: 0.75rem;
    color: var(--text-light);
}

/* MOS Metrics */
.mos-metrics-section {
    text-align: left;
}

.mos-metric-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
}

.mos-metric-row:last-child {
    border-bottom: none;
}

.mos-metric-label {
    color: var(--text-light);
    font-size: 0.9rem;
}

.mos-metric-value {
    font-weight: 700;
    font-size: 1.1rem;
}

.mos-metric-value.good { color: #10b981; }
.mos-metric-value.fair { color: #f59e0b; }
.mos-metric-value.bad { color: #ef4444; }

/* MOS Interpretation */
.mos-interpretation {
    padding: 12px 15px;
    background: var(--bg);
    border-radius: 8px;
    font-size: 0.8rem;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    align-items: center;
}

.mos-interpretation strong {
    margin-right: 5px;
}

.mos-scale {
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
}

.mos-scale.excellent { background: #dcfce7; color: #166534; }
.mos-scale.good { background: #ecfccb; color: #3f6212; }
.mos-scale.fair { background: #fef9c3; color: #854d0e; }
.mos-scale.poor { background: #fed7aa; color: #9a3412; }
.mos-scale.bad { background: #fecaca; color: #991b1b; }

/* ========================================
   UDP Speed Test Results
   ======================================== */

.udp-results-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 15px;
}

@media (max-width: 600px) {
    .udp-results-grid {
        grid-template-columns: 1fr;
    }
}

.udp-result-card {
    background: var(--bg-card);
    border-radius: 10px;
    padding: 20px;
    text-align: center;
}

.udp-result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.udp-direction {
    font-weight: 600;
    font-size: 1rem;
    color: var(--text);
}

.udp-protocol {
    font-size: 0.75rem;
    color: var(--text-light);
    background: var(--bg);
    padding: 2px 8px;
    border-radius: 4px;
}

.udp-speed {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 15px;
}

.udp-speed .unit {
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-light);
}

.udp-speed.excellent { color: #10b981; }
.udp-speed.good { color: #22c55e; }
.udp-speed.fair { color: #f59e0b; }
.udp-speed.poor { color: #ef4444; }

.udp-metrics {
    display: flex;
    justify-content: space-around;
    gap: 10px;
}

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

.udp-metric .label {
    font-size: 0.75rem;
    color: var(--text-light);
    margin-bottom: 4px;
}

.udp-metric .value {
    font-weight: 600;
    font-size: 0.9rem;
}

.udp-metric .value.good { color: #10b981; }
.udp-metric .value.fair { color: #f59e0b; }
.udp-metric .value.bad { color: #ef4444; }

.udp-note {
    font-size: 0.8rem;
    color: var(--text-light);
    background: var(--bg);
    padding: 10px 15px;
    border-radius: 6px;
    border-left: 3px solid var(--primary);
}

/* ========================================
   MTU Test Results
   ======================================== */

.mtu-summary {
    text-align: center;
    padding: 20px;
    background: var(--bg-card);
    border-radius: 10px;
    margin-bottom: 20px;
}

.mtu-value {
    font-size: 2.5rem;
    font-weight: 700;
}

.mtu-value .unit {
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-light);
}

.mtu-summary.excellent .mtu-value { color: #10b981; }
.mtu-summary.good .mtu-value { color: #22c55e; }
.mtu-summary.fair .mtu-value { color: #f59e0b; }
.mtu-summary.bad .mtu-value { color: #ef4444; }

.mtu-status {
    margin-top: 10px;
    font-size: 0.9rem;
    color: var(--text);
}

.mtu-details {
    margin-bottom: 15px;
}

.mtu-details h4 {
    font-size: 0.9rem;
    margin-bottom: 10px;
    color: var(--text);
}

.mtu-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.mtu-table th,
.mtu-table td {
    padding: 8px 12px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.mtu-table th {
    background: var(--bg);
    font-weight: 600;
    color: var(--text-light);
}

.mtu-table td.success { color: #10b981; }
.mtu-table td.warning { color: #f59e0b; }
.mtu-table td.error { color: #ef4444; }

.mtu-error {
    color: #ef4444;
    text-align: center;
    padding: 20px;
}

/* ========================================
   Stability Test Results
   ======================================== */

.stability-error {
    color: #ef4444;
    text-align: center;
    padding: 20px;
}

.stability-score-section {
    text-align: center;
    padding: 25px;
    background: var(--bg-card);
    border-radius: 12px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
}

.stability-score-value {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1;
}

.stability-score-value .unit {
    font-size: 1.2rem;
    font-weight: 400;
    color: var(--text-light);
}

.stability-score-section.excellent .stability-score-value { color: #10b981; }
.stability-score-section.good .stability-score-value { color: #22c55e; }
.stability-score-section.fair .stability-score-value { color: #f59e0b; }
.stability-score-section.bad .stability-score-value { color: #ef4444; }

.stability-score-label {
    font-size: 1.1rem;
    font-weight: 600;
    margin-top: 10px;
}

.stability-score-section.excellent .stability-score-label { color: #10b981; }
.stability-score-section.good .stability-score-label { color: #22c55e; }
.stability-score-section.fair .stability-score-label { color: #f59e0b; }
.stability-score-section.bad .stability-score-label { color: #ef4444; }

.stability-score-detail {
    font-size: 0.85rem;
    color: var(--text-light);
    margin-top: 5px;
}

/* Stability Metrics Grid */
.stability-metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    margin-bottom: 20px;
}

.stability-metric-card {
    background: var(--bg-card);
    border-radius: 10px;
    padding: 18px;
    text-align: center;
    box-shadow: var(--shadow);
}

.stability-metric-card .metric-header {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 6px;
    margin-bottom: 10px;
}

.stability-metric-card .metric-title {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text);
}

.stability-metric-card .metric-help {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    background: var(--secondary);
    color: white;
    border-radius: 50%;
    font-size: 10px;
    font-weight: 700;
    cursor: help;
    position: relative;
}

.stability-metric-card .metric-help:hover {
    background: var(--primary);
}

.stability-metric-card .metric-help[title]:hover::after {
    content: attr(title);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    width: 220px;
    padding: 8px 10px;
    background: var(--text);
    color: white;
    font-size: 0.75rem;
    font-weight: 400;
    line-height: 1.4;
    border-radius: 6px;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    pointer-events: none;
}

.stability-metric-card .metric-help[title]:hover::before {
    content: '';
    position: absolute;
    bottom: calc(100%);
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: var(--text);
    z-index: 1000;
}

.stability-metric-card .metric-value {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 5px;
}

.stability-metric-card .metric-value .unit {
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--text-light);
}

.stability-metric-card .metric-value.excellent { color: #10b981; }
.stability-metric-card .metric-value.good { color: #22c55e; }
.stability-metric-card .metric-value.fair { color: #f59e0b; }
.stability-metric-card .metric-value.bad { color: #ef4444; }

.stability-metric-card .metric-range {
    font-size: 1rem;
    color: var(--text);
    font-weight: 600;
    margin-bottom: 8px;
    padding: 4px 8px;
    background: var(--bg);
    border-radius: 4px;
    display: inline-block;
}

.stability-metric-card .metric-detail {
    font-size: 0.9rem;
    color: var(--text);
    font-weight: 500;
    margin-bottom: 8px;
}

.stability-metric-card .metric-desc {
    font-size: 0.75rem;
    color: var(--secondary);
    font-style: italic;
}

/* Variance indicator bar */
.metric-variance-bar {
    height: 6px;
    background: linear-gradient(90deg, #10b981 0%, #22c55e 25%, #f59e0b 50%, #ef4444 100%);
    border-radius: 3px;
    margin: 8px 0;
    position: relative;
}

.variance-indicator {
    position: absolute;
    top: -3px;
    width: 12px;
    height: 12px;
    background: var(--text);
    border: 2px solid white;
    border-radius: 50%;
    transform: translateX(-50%);
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

/* Stability Details */
.stability-details {
    background: var(--bg-card);
    border-radius: 10px;
    padding: 15px 20px;
    margin-bottom: 15px;
    box-shadow: var(--shadow);
}

.stability-details .details-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
}

.stability-details .details-row:last-child {
    border-bottom: none;
}

.stability-details .details-label {
    color: var(--text-light);
    font-size: 0.9rem;
}

.stability-details .details-value {
    font-weight: 600;
    font-size: 0.9rem;
}

.stability-details .details-value.warning {
    color: #f59e0b;
}

.stability-details .details-range {
    font-weight: 400;
    color: var(--text-light);
    font-size: 0.8rem;
}

/* Stability Diagnosis */
.stability-diagnosis {
    background: var(--bg-card);
    border-radius: 10px;
    padding: 15px 20px;
    box-shadow: var(--shadow);
}

.diagnosis-verdict {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 15px;
    border-radius: 8px;
    margin-bottom: 12px;
    font-weight: 600;
    font-size: 1.1rem;
}

.diagnosis-verdict.good {
    background: #dcfce7;
    color: #166534;
}

.diagnosis-verdict.fair {
    background: #fef3c7;
    color: #92400e;
}

.diagnosis-verdict.bad {
    background: #fecaca;
    color: #991b1b;
}

.verdict-icon {
    font-size: 1.3rem;
}

.diagnosis-issues {
    margin-bottom: 12px;
}

.diagnosis-issue {
    padding: 10px 12px;
    border-radius: 6px;
    margin-bottom: 6px;
    font-size: 0.9rem;
}

.diagnosis-good {
    margin-bottom: 12px;
}

.diagnosis-good-item {
    padding: 6px 0;
    font-size: 0.9rem;
    color: #059669;
}

.diagnosis-actions {
    background: #eff6ff;
    border: 1px solid #bfdbfe;
    border-radius: 8px;
    padding: 12px 15px;
    font-size: 0.9rem;
}

.diagnosis-actions strong {
    display: block;
    margin-bottom: 8px;
    color: #1e40af;
}

.diagnosis-actions ul {
    margin: 0 0 0 20px;
    padding: 0;
}

.diagnosis-actions li {
    margin-bottom: 4px;
    color: #1e3a8a;
}

@media (max-width: 600px) {
    .stability-metrics-grid {
        grid-template-columns: 1fr 1fr;
    }

    .stability-metric-card {
        padding: 12px;
    }

    .stability-metric-card .metric-value {
        font-size: 1.5rem;
    }

    .stability-score-value {
        font-size: 2.5rem;
    }
}

/* WiFi Detection Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    backdrop-filter: blur(4px);
}

.modal-content {
    background: white;
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    max-width: 400px;
    width: 90%;
    text-align: center;
    animation: modalSlideIn 0.3s ease-out;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.modal-content h3 {
    margin-bottom: 15px;
    color: #1e293b;
    font-size: 1.4rem;
}

.modal-content p {
    color: #64748b;
    margin-bottom: 25px;
    line-height: 1.5;
}

.modal-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
}

.btn-modal {
    padding: 12px 30px;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-wifi {
    background: linear-gradient(135deg, #3b82f6, #8b5cf6);
    color: white;
}

.btn-wifi:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4);
}

.btn-ethernet {
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
}

.btn-ethernet:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.4);
}

/* ========================================
   Print Styles - For PDF Export
   ======================================== */

@media print {
    /* Reset and base */
    * {
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
        color-adjust: exact !important;
    }

    body {
        background: white !important;
        font-size: 11pt;
        line-height: 1.4;
    }

    .container {
        max-width: 100%;
        padding: 0;
        margin: 0;
    }

    /* Hide non-essential elements */
    .config-section,
    .progress-section,
    .export-section,
    .btn-primary,
    .btn-secondary,
    .btn-diagnosis,
    .modal,
    header,
    footer,
    .help-icon,
    details > summary {
        display: none !important;
    }

    /* Force show details content */
    details {
        display: block !important;
    }

    details[open] > summary ~ * {
        display: block !important;
    }

    details > *:not(summary) {
        display: block !important;
    }

    /* Print info block - shown only in print */
    .print-info {
        display: block !important;
        background: #f8fafc;
        border: 1px solid #e2e8f0;
        border-radius: 8px;
        padding: 15px;
        margin-bottom: 20px;
        page-break-inside: avoid;
    }

    .print-info-grid {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }

    .print-info-item {
        font-size: 10pt;
    }

    .print-info-label {
        color: #64748b;
        font-size: 9pt;
    }

    .print-info-value {
        font-weight: 600;
        color: #1e293b;
    }

    .print-title {
        text-align: center;
        font-size: 18pt;
        font-weight: 700;
        color: #1e293b;
        margin: 0 0 15px 0;
        padding-bottom: 10px;
        border-bottom: 2px solid #6366f1;
    }

    /* Sections */
    section {
        box-shadow: none !important;
        border: 1px solid #e2e8f0;
        margin-bottom: 15px;
        padding: 15px;
        page-break-inside: avoid;
    }

    section h2 {
        font-size: 14pt;
        padding-bottom: 8px;
        margin-bottom: 15px;
    }

    /* Results */
    .results-section {
        display: block !important;
    }

    .result-card-wide {
        background: #f8fafc !important;
        border: 1px solid #e2e8f0;
        padding: 15px;
        margin-bottom: 10px;
    }

    .speed-results {
        gap: 15px;
    }

    .speed-item {
        background: white !important;
        border: 1px solid #e2e8f0;
        box-shadow: none;
    }

    .speed-value {
        font-size: 18pt;
    }

    /* Latency gauges */
    .latency-results-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
        gap: 10px;
    }

    .latency-gauge-card {
        border: 1px solid #e2e8f0;
        padding: 10px;
    }

    /* Charts */
    .chart-container,
    .completed-charts-section {
        page-break-inside: avoid;
        margin-top: 15px;
    }

    .chart-container canvas {
        max-height: 200px !important;
    }

    .completed-chart-item {
        border: 1px solid #e2e8f0;
    }

    /* Diagnosis section */
    .diagnosis-section {
        display: block !important;
        background: #faf5ff !important;
        border: 2px solid #e9d5ff;
        page-break-inside: avoid;
    }

    .ai-diagnosis-result {
        background: white !important;
        border: 1px solid #e9d5ff;
        font-size: 10pt;
        line-height: 1.5;
    }

    .diagnosis-progress {
        display: none !important;
    }

    /* Bidirectional results */
    .bidirectional-container {
        display: block !important;
    }

    .bidirectional-grid {
        gap: 10px;
    }

    .bidirectional-card {
        border: 1px solid #e2e8f0;
    }

    /* MTU results */
    #mtu-results-container {
        display: block !important;
    }

    .mtu-summary {
        border: 1px solid #e2e8f0;
    }

    .mtu-table th,
    .mtu-table td {
        border: 1px solid #e2e8f0;
    }

    /* MOS results */
    .mos-results-container {
        gap: 15px;
    }

    .mos-gauge-section,
    .mos-metrics-section {
        border: 1px solid #e2e8f0;
    }

    /* Page breaks */
    h2, h3 {
        page-break-after: avoid;
    }

    /* Footer for print */
    .print-footer {
        display: block !important;
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        text-align: center;
        font-size: 8pt;
        color: #64748b;
        padding: 10px;
        border-top: 1px solid #e2e8f0;
    }

    /* Logo in print */
    .print-logo {
        display: block !important;
        max-width: 120px;
        max-height: 60px;
        margin-bottom: 10px;
    }

    /* Hide screen-only elements */
    .screen-only {
        display: none !important;
    }
}

/* Hide print-only elements on screen */
@media screen {
    .print-info,
    .print-footer,
    .print-logo,
    .print-title,
    .print-only {
        display: none !important;
    }
}