/**
 * CNC Manager v2.5 - Styles
 * Updated: 3D G-code Viewer integration, dynamic test layout
 */

:root {
    --accent-color: #00b894;
    --accent-hover: #00a884;
    --danger-color: #e74c3c;
    --warning-color: #f39c12;
    --info-color: #3498db;
    --success-color: #27ae60;
    --orange-color: #e67e22;
    --purple-color: #9b59b6;
    --bg-dark: #1a1a2e;
    --bg-card: #16213e;
    --bg-input: #0f3460;
    --text-primary: #eaeaea;
    --text-muted: #8b8b8b;
    --border-color: #2a2a4a;
    --border-radius: 8px;
    --touch-target: 48px;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    min-height: 100vh;
    padding-bottom: 100px;
}

/* Utility classes */
.text-accent { color: var(--accent-color); }
.text-danger { color: var(--danger-color); }
.text-warning { color: var(--warning-color); }
.text-info { color: var(--info-color); }
.text-success { color: var(--success-color); }

/* Accent outline button */
.btn-outline-accent {
    color: var(--accent-color);
    border-color: var(--accent-color);
    background: transparent;
}
.btn-outline-accent:hover {
    color: #000;
    background-color: var(--accent-color);
    border-color: var(--accent-color);
}

/* Glossary styling */
#glossaryModal dl { margin-bottom: 0; }
#glossaryModal dt { color: var(--text-primary); font-weight: 600; margin-top: 0.75rem; }
#glossaryModal dt:first-child { margin-top: 0; }
#glossaryModal dd { color: var(--text-muted); margin-left: 1rem; margin-bottom: 0.5rem; }
.glossary-content { max-height: 60vh; overflow-y: auto; }

/* Nav tabs in glossary */
#glossaryModal .nav-tabs { border-bottom-color: var(--border-color); }
#glossaryModal .nav-link { 
    color: var(--text-muted); 
    border: none;
    padding: 0.5rem 1rem;
}
#glossaryModal .nav-link:hover { 
    color: var(--text-primary); 
    border: none;
}
#glossaryModal .nav-link.active { 
    color: var(--accent-color); 
    background: transparent;
    border-bottom: 2px solid var(--accent-color);
}

/* Beta Banner */
.safety-banner {
    background: linear-gradient(90deg, #e74c3c, #c0392b);
    color: white;
    text-align: center;
    padding: 8px 16px;
    font-size: 0.875rem;
    position: sticky;
    top: 0;
    z-index: 1001;
}

.beta-banner {
    background: linear-gradient(90deg, #6f42c1, #5a32a3);
    color: white;
    text-align: center;
    padding: 6px 16px;
    font-size: 0.8rem;
    position: sticky;
    top: 38px;
    z-index: 1000;
}

/* Header */
.app-header {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md) 0;
    position: sticky;
    top: 70px;
    z-index: 999;
}

.app-header .logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-color);
}

/* Progress Steps */
.progress-nav {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md) 0;
    overflow-x: auto;
}

.progress-steps {
    display: flex;
    justify-content: space-between;
    min-width: 700px;
    padding: 0 var(--spacing-md);
}

.progress-steps .step {
    display: flex;
    flex-direction: column;
    align-items: center;
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius);
    min-width: 60px;
}

.progress-steps .step:hover {
    background: rgba(255, 255, 255, 0.05);
}

.progress-steps .step .step-number {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--bg-input);
    border: 2px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
    margin-bottom: 4px;
}

.progress-steps .step .step-label {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Active = ORANGE */
.progress-steps .step.active .step-number {
    background: var(--orange-color);
    border-color: var(--orange-color);
    color: white;
}
.progress-steps .step.active .step-label {
    color: var(--orange-color);
    font-weight: 600;
}

/* Completed = GREEN */
.progress-steps .step.completed .step-number {
    background: var(--success-color);
    border-color: var(--success-color);
    color: white;
}
.progress-steps .step.completed .step-label {
    color: var(--success-color);
}

/* Step Panels */
.step-panel { display: none; animation: fadeIn 0.3s ease; }
.step-panel.active { display: block; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.step-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
    gap: var(--spacing-md);
}
.step-header h2 { margin: 0; font-size: 1.5rem; flex-grow: 1; text-align: center; }
.step-header-start, .step-header-end {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    min-width: 120px;
}
.step-header-start { justify-content: flex-start; }
.step-header-end { justify-content: flex-end; }

/* Hide old bottom nav - buttons now in header */
.step-nav { display: none; }

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
}
.card-header {
    background: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md);
}
.card-body { padding: var(--spacing-lg); }

/* Buttons */
.btn {
    min-height: var(--touch-target);
    padding: 10px 20px;
    border-radius: var(--border-radius);
    font-weight: 500;
}
.btn-lg { min-height: 56px; padding: 14px 28px; font-size: 1.1rem; }
.btn-sm { min-height: 36px; padding: 6px 12px; }
.btn-xs { min-height: 28px; padding: 4px 8px; font-size: 0.75rem; }
.btn-accent { background: var(--accent-color); border-color: var(--accent-color); color: white; }
.btn-accent:hover { background: var(--accent-hover); border-color: var(--accent-hover); color: white; }
.btn-group .btn.active { background: var(--accent-color); border-color: var(--accent-color); color: white; }

/* SINGLE-ROW CENTERED GRIDS */
.tool-grid, .material-grid, .test-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) 0;
}

.tool-btn, .material-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.6rem 1.2rem;
    background: linear-gradient(135deg, var(--bg-input) 0%, rgba(30,30,40,1) 100%);
    border: 1px solid var(--border-color);
    border-left: 3px solid var(--accent-color);
    border-radius: 6px;
    color: var(--text-primary);
    cursor: pointer;
    min-width: auto;
    min-height: auto;
    flex-shrink: 1;
    font-size: 0.85rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    transition: all 0.2s ease;
    position: relative;
    overflow: hidden;
}

.tool-btn::before, .material-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, transparent 0%, rgba(255,255,255,0.03) 100%);
    opacity: 0;
    transition: opacity 0.2s ease;
}

.tool-btn:hover, .material-btn:hover { 
    border-color: var(--accent-color); 
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,184,148,0.2);
}

.tool-btn:hover::before, .material-btn:hover::before {
    opacity: 1;
}

.tool-btn.active, .material-btn.active { 
    border-color: var(--accent-color); 
    background: linear-gradient(135deg, rgba(0,184,148,0.15) 0%, rgba(0,184,148,0.05) 100%);
    box-shadow: 0 0 15px rgba(0,184,148,0.3), inset 0 0 20px rgba(0,184,148,0.1);
}

/* Tool type accent colors */
.tool-btn[data-tool="endmill_flat"] { border-left-color: #00b894; }
.tool-btn[data-tool="endmill_ball"] { border-left-color: #0984e3; }
.tool-btn[data-tool="endmill_compression"] { border-left-color: #6c5ce7; }
.tool-btn[data-tool="vbit"] { border-left-color: #fd79a8; }
.tool-btn[data-tool="drill"] { border-left-color: #fdcb6e; }
.tool-btn[data-tool="surfacing"] { border-left-color: #e17055; }

.tool-btn[data-tool="endmill_flat"].active { border-left-color: #00b894; box-shadow: 0 0 15px rgba(0,184,148,0.4), inset 0 0 20px rgba(0,184,148,0.15); }
.tool-btn[data-tool="endmill_ball"].active { border-left-color: #0984e3; box-shadow: 0 0 15px rgba(9,132,227,0.4), inset 0 0 20px rgba(9,132,227,0.15); }
.tool-btn[data-tool="endmill_compression"].active { border-left-color: #6c5ce7; box-shadow: 0 0 15px rgba(108,92,231,0.4), inset 0 0 20px rgba(108,92,231,0.15); }
.tool-btn[data-tool="vbit"].active { border-left-color: #fd79a8; box-shadow: 0 0 15px rgba(253,121,168,0.4), inset 0 0 20px rgba(253,121,168,0.15); }
.tool-btn[data-tool="drill"].active { border-left-color: #fdcb6e; box-shadow: 0 0 15px rgba(253,203,110,0.4), inset 0 0 20px rgba(253,203,110,0.15); }
.tool-btn[data-tool="surfacing"].active { border-left-color: #e17055; box-shadow: 0 0 15px rgba(225,112,85,0.4), inset 0 0 20px rgba(225,112,85,0.15); }

/* Material category accent colors */
.material-btn[data-category="hardwood"] { border-left-color: #8b4513; }
.material-btn[data-category="softwood"] { border-left-color: #deb887; }
.material-btn[data-category="plywood"] { border-left-color: #d2691e; }
.material-btn[data-category="mdf"] { border-left-color: #a0826d; }
.material-btn[data-category="plastic"] { border-left-color: #00cec9; }
.material-btn[data-category="aluminum"] { border-left-color: #b2bec3; }
.material-btn[data-category="brass"] { border-left-color: #f9ca24; }
.material-btn[data-category="foam"] { border-left-color: #a29bfe; }

.material-btn[data-category="hardwood"].active { border-left-color: #8b4513; box-shadow: 0 0 15px rgba(139,69,19,0.4), inset 0 0 20px rgba(139,69,19,0.15); }
.material-btn[data-category="softwood"].active { border-left-color: #deb887; box-shadow: 0 0 15px rgba(222,184,135,0.4), inset 0 0 20px rgba(222,184,135,0.15); }
.material-btn[data-category="plywood"].active { border-left-color: #d2691e; box-shadow: 0 0 15px rgba(210,105,30,0.4), inset 0 0 20px rgba(210,105,30,0.15); }
.material-btn[data-category="mdf"].active { border-left-color: #a0826d; box-shadow: 0 0 15px rgba(160,130,109,0.4), inset 0 0 20px rgba(160,130,109,0.15); }
.material-btn[data-category="plastic"].active { border-left-color: #00cec9; box-shadow: 0 0 15px rgba(0,206,201,0.4), inset 0 0 20px rgba(0,206,201,0.15); }
.material-btn[data-category="aluminum"].active { border-left-color: #b2bec3; box-shadow: 0 0 15px rgba(178,190,195,0.4), inset 0 0 20px rgba(178,190,195,0.15); }
.material-btn[data-category="brass"].active { border-left-color: #f9ca24; box-shadow: 0 0 15px rgba(249,202,36,0.4), inset 0 0 20px rgba(249,202,36,0.15); }
.material-btn[data-category="foam"].active { border-left-color: #a29bfe; box-shadow: 0 0 15px rgba(162,155,254,0.4), inset 0 0 20px rgba(162,155,254,0.15); }

/* Test Grid - Uniform Cards */
.test-grid-uniform {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--spacing-md);
    padding: var(--spacing-sm) 0;
}

.test-option { cursor: pointer; flex-shrink: 0; }
.test-option input[type="checkbox"] { display: none; }
.test-card {
    background: var(--bg-input);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
    width: 130px;
    height: 120px;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
}
.test-option:hover .test-card { border-color: var(--accent-color); }
.test-option input:checked + .test-card { border-color: var(--accent-color); background: rgba(0,184,148,0.15); }
.test-card .test-icon { font-size: 1.5rem; margin-bottom: 6px; color: var(--accent-color); }
.test-card h6 { margin-bottom: 4px; font-size: 0.85rem; }
.test-card small { color: var(--text-muted); font-size: 0.7rem; line-height: 1.3; display: block; }
.test-option.disabled .test-card { opacity: 0.5; cursor: not-allowed; }

/* Forms */
.form-control, .form-select {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    min-height: var(--touch-target);
    border-radius: var(--border-radius);
}
.form-control:focus, .form-select:focus {
    background: var(--bg-input);
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(0,184,148,0.25);
    color: var(--text-primary);
}
.form-label { font-weight: 500; margin-bottom: var(--spacing-sm); }
.input-group-text { background: rgba(0,0,0,0.3); border: 1px solid var(--border-color); color: var(--text-muted); }

/* Select dropdown options */
.form-select option {
    background: #1a1a2e;
    color: #eaeaea;
    padding: 8px;
}

/* PARAMETERS PAGE */
.params-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-md);
}
.param-item {
    background: var(--bg-input);
    border-radius: var(--border-radius);
    padding: var(--spacing-md);
}
.param-item label { display: block; font-weight: 600; margin-bottom: 4px; font-size: 0.9rem; }
.param-item .param-help { font-size: 0.7rem; color: var(--text-muted); margin-bottom: 8px; }
.param-input-group { display: flex; align-items: center; gap: 4px; }
.param-input-group input { flex: 1; text-align: center; font-size: 1.1rem; font-weight: 600; }
.param-input-group .btn { padding: 8px 12px; min-height: 44px; }

/* Quick Adjust - Redesigned as Param Card */
.quick-adjust-param {
    background: linear-gradient(135deg, var(--bg-input), rgba(0,184,148,0.1));
    border: 1px solid var(--accent-color);
}
.quick-adjust-control {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}
.quick-adjust-display {
    display: flex;
    align-items: center;
    gap: 4px;
    background: var(--bg-card);
    border-radius: var(--border-radius);
    padding: 4px 8px;
}
.quick-adjust-value {
    font-size: 1.1rem;
    font-weight: 700;
    min-width: 50px;
    text-align: center;
    color: var(--accent-color);
}
.quick-adjust-presets {
    display: flex;
    justify-content: center;
    gap: 4px;
    flex-wrap: wrap;
}

/* Chipload Card - Prominent */
.chipload-card-prominent {
    background: linear-gradient(135deg, var(--bg-card), rgba(39,174,96,0.15));
    border: 2px solid var(--success-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
}
.chipload-display {
    text-align: center;
    padding-right: var(--spacing-lg);
    border-right: 1px solid var(--border-color);
    margin-right: var(--spacing-lg);
}
.chipload-display .chipload-value {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1;
}
.chipload-display .chipload-unit {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-top: 4px;
}
.chipload-label {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 4px;
}
.chipload-status {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
}
.chipload-hint {
    font-size: 0.8rem;
    color: var(--text-muted);
}
.chipload-value.good { color: var(--success-color); }
.chipload-value.caution { color: var(--warning-color); }
.chipload-value.danger { color: var(--danger-color); }

/* Old chipload card (keep for backward compat) */
.chipload-card { background: var(--bg-input); border-radius: var(--border-radius); padding: var(--spacing-lg); text-align: center; }

/* Params Top Row - Side by side suggested + chipload */
.params-top-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
    align-items: stretch;
}
.params-top-row .suggested-banner {
    margin-bottom: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--spacing-sm);
}
.params-top-row .suggested-banner > div {
    display: flex;
    align-items: center;
}
.params-top-row .chipload-card-prominent {
    margin-bottom: 0;
}
.chipload-inner {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}
.chipload-info {
    flex: 1;
}

/* Suggested Banner */
.suggested-banner {
    display: flex; justify-content: space-between; align-items: center;
    background: rgba(52,152,219,0.15); border: 1px solid var(--info-color);
    border-radius: var(--border-radius); padding: var(--spacing-md) var(--spacing-lg); margin-bottom: var(--spacing-lg);
}

/* Interactive Checklist */
.interactive-checklist { list-style: none; padding: 0; margin: 0; }
.interactive-checklist li { display: flex; align-items: flex-start; gap: var(--spacing-md); padding: var(--spacing-md) 0; border-bottom: 1px solid var(--border-color); }
.interactive-checklist li:last-child { border-bottom: none; }
.check-box {
    width: 28px; height: 28px;
    border: 2px solid var(--border-color); border-radius: 4px;
    display: flex; align-items: center; justify-content: center;
    cursor: pointer; flex-shrink: 0; font-size: 1rem; color: transparent;
}
.check-box:hover { border-color: var(--accent-color); }
.check-box.checked { background: var(--success-color); border-color: var(--success-color); color: white; }
.check-box.checked::after { content: '✓'; }
.check-content { flex: 1; }
.check-content small { display: block; color: var(--text-muted); margin-top: 2px; }

/* G-code Generation Section */
.gcode-section {
    background: var(--bg-input);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
}
.gcode-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-md);
}
.gcode-ready-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--spacing-md);
    flex: 1;
}
.gcode-ready-badge {
    display: inline-flex;
    align-items: center;
    padding: 8px 16px;
    background: rgba(39, 174, 96, 0.15);
    border: 1px solid var(--success-color);
    border-radius: var(--border-radius);
    font-weight: 500;
}
.gcode-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-left: auto;
}
@media (max-width: 768px) {
    .gcode-actions { flex-direction: column; align-items: stretch; }
    .gcode-ready-actions { flex-direction: column; align-items: stretch; }
    .gcode-ready-badge { justify-content: center; }
    .gcode-buttons { justify-content: center; margin-left: 0; }
}

/* Scoring */
.scoring-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--spacing-md); }
.scoring-item { background: var(--bg-input); border-radius: var(--border-radius); padding: var(--spacing-md); }
.scoring-item h6 { margin-bottom: var(--spacing-sm); font-size: 0.9rem; }
.scoring-options { display: flex; gap: 4px; }
.scoring-option {
    flex: 1; padding: 8px 4px; background: var(--bg-card); border: 2px solid var(--border-color);
    border-radius: 4px; text-align: center; cursor: pointer; font-size: 0.7rem; line-height: 1.2;
}
.scoring-option:hover { border-color: var(--accent-color); }
.scoring-option.selected.good { border-color: var(--success-color); background: rgba(39,174,96,0.2); }
.scoring-option.selected.ok { border-color: var(--warning-color); background: rgba(243,156,18,0.2); }
.scoring-option.selected.bad { border-color: var(--danger-color); background: rgba(231,76,60,0.2); }

.score-summary { text-align: center; padding: var(--spacing-lg); background: var(--bg-input); border-radius: var(--border-radius); margin-top: var(--spacing-lg); }
.score-summary .score-value { font-size: 3rem; font-weight: 700; }
.score-summary .score-label { color: var(--text-muted); }
.score-summary.excellent .score-value { color: var(--success-color); }
.score-summary.good .score-value { color: #2ecc71; }
.score-summary.fair .score-value { color: var(--warning-color); }
.score-summary.poor .score-value { color: #e67e22; }
.score-summary.bad .score-value { color: var(--danger-color); }

/* Skip Run Section */
.skip-run-section {
    background: rgba(255, 193, 7, 0.1);
    border-color: var(--warning-color) !important;
}

.tool-broke-option {
    background: var(--bg-input); border: 1px solid var(--border-color);
    border-radius: var(--border-radius); padding: var(--spacing-md);
    transition: all 0.2s ease;
}
.tool-broke-option:has(input:checked) {
    background: rgba(231,76,60,0.1); border-color: var(--danger-color);
}
.tool-broke-option label { display: flex; align-items: center; gap: var(--spacing-md); cursor: pointer; margin: 0; font-weight: 500; }
.tool-broke-option input[type="checkbox"] { width: 20px; height: 20px; }

/* Run History */
.run-history { display: flex; flex-direction: column; gap: var(--spacing-sm); }
.run-entry {
    display: flex; justify-content: space-between; align-items: center;
    padding: var(--spacing-md); background: var(--bg-input); border-radius: var(--border-radius);
    border-left: 4px solid var(--border-color);
}
.run-entry.best { border-left-color: var(--success-color); background: rgba(39,174,96,0.1); }
.run-entry.broken { border-left-color: var(--danger-color); background: rgba(231,76,60,0.1); }
.run-entry .run-number { font-weight: 700; min-width: 50px; }
.run-entry .run-params { flex: 1; font-size: 0.8rem; color: var(--text-muted); }
.run-entry .run-score { font-size: 1.25rem; font-weight: 700; }

/* Offset Control */
.offset-control { background: var(--bg-input); border-radius: var(--border-radius); padding: var(--spacing-lg); margin-bottom: var(--spacing-lg); }
.offset-display { display: flex; align-items: center; justify-content: center; gap: var(--spacing-lg); margin: var(--spacing-md) 0; }
.offset-value { font-size: 1.5rem; font-weight: 700; color: var(--info-color); }

/* Review Config */
.config-summary { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--border-color); border-radius: var(--border-radius); overflow: hidden; }
.config-item { background: var(--bg-input); padding: var(--spacing-md); }
.config-item .config-label { font-size: 0.7rem; color: var(--text-muted); text-transform: uppercase; }
.config-item .config-value { font-weight: 600; margin-top: 2px; }

/* G-code Preview Canvas */
#gcodePreviewCanvas { background: #1a1a1a; border-radius: var(--border-radius); display: block; width: 100%; height: 280px; }

/* Preview Legend */
.preview-legend {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
}
.legend-item {
    display: flex;
    align-items: center;
    gap: 4px;
}
.legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
}
.legend-line {
    width: 16px;
    height: 0;
    border-top: 2px dashed;
    display: inline-block;
}
.legend-line.solid {
    border-top-style: solid;
}
.legend-box {
    width: 12px;
    height: 12px;
    border: 2px solid;
    display: inline-block;
}

/* Tool Library */
.tool-library-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border-color);
}

.tool-library-tabs .btn {
    font-size: 0.85rem;
    padding: 6px 12px;
}

.tool-library-tabs .btn.active {
    background: var(--accent-color);
    border-color: var(--accent-color);
    color: white;
}

.tool-library-list {
    max-height: 400px;
    overflow-y: auto;
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 12px;
}

.tool-library-item {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 12px;
    cursor: pointer;
    transition: all 0.15s ease;
}

.tool-library-item:hover {
    border-color: var(--accent-color);
    background: rgba(0, 184, 148, 0.1);
}

.tool-library-item .tool-size {
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.tool-library-item .tool-info {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Alerts */
.alert { border-radius: var(--border-radius); border: none; }
.alert-info { background: rgba(52,152,219,0.15); color: var(--info-color); }
.alert-warning { background: rgba(243,156,18,0.15); color: var(--warning-color); }
.alert-danger { background: rgba(231,76,60,0.15); color: var(--danger-color); }
.alert-success { background: rgba(39,174,96,0.15); color: var(--success-color); }

/* Modal */
.modal-content { background: var(--bg-card); border: 1px solid var(--border-color); }
.modal-header { border-bottom-color: var(--border-color); }
.modal-footer { border-top-color: var(--border-color); }

/* Toast Notifications */
.toast {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
}
.toast-header {
    background: rgba(0,0,0,0.2);
    border-bottom-color: var(--border-color);
    color: var(--text-primary);
}
.toast-body {
    color: var(--text-primary);
}
.toast.toast-success { border-left: 4px solid var(--success-color); }
.toast.toast-warning { border-left: 4px solid var(--warning-color); }
.toast.toast-danger { border-left: 4px solid var(--danger-color); }
.toast.toast-info { border-left: 4px solid var(--info-color); }

/* Feedback Button & Form */
.feedback-float-btn {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--accent-color);
    color: white;
    border: none;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    cursor: pointer;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    transition: all 0.2s ease;
}

.feedback-float-btn:hover {
    transform: scale(1.1);
    background: var(--accent-hover);
    box-shadow: 0 6px 16px rgba(0,0,0,0.4);
}

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

#feedbackModal .modal-content {
    background: var(--bg-card);
}

#feedbackModal .form-control,
#feedbackModal .form-select {
    background: var(--bg-input);
    border-color: var(--border-color);
    color: var(--text-primary);
}

#feedbackModal .form-control:focus,
#feedbackModal .form-select:focus {
    background: var(--bg-input);
    border-color: var(--accent-color);
    color: var(--text-primary);
    box-shadow: 0 0 0 2px rgba(0, 184, 148, 0.25);
}

#feedbackModal .form-select option {
    background: #1a1a2e;
    color: #eaeaea;
    padding: 10px;
}

#feedbackModal .form-text {
    color: var(--text-muted);
}

/* Server status indicator - moved to less prominent position */
.server-status {
    position: fixed;
    bottom: 8px;
    left: 8px;
    font-size: 0.65rem;
    padding: 2px 8px;
    border-radius: 10px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    z-index: 999;
    opacity: 0.7;
}

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

.server-status.offline {
    border-color: var(--danger-color);
    color: var(--danger-color);
    opacity: 1;
}

/* Responsive */
@media (max-width: 768px) {
    .step-nav { flex-direction: column; }
    .step-nav .btn { width: 100%; }
    .tool-grid, .material-grid, .test-grid, .test-grid-uniform { justify-content: flex-start; }
    .params-grid { grid-template-columns: 1fr 1fr; }
    .params-top-row { grid-template-columns: 1fr; }
    .scoring-grid { grid-template-columns: 1fr; }
    .config-summary { grid-template-columns: 1fr; }
    .chipload-display { 
        border-right: none; 
        border-bottom: 1px solid var(--border-color);
        padding-right: 0;
        padding-bottom: var(--spacing-md);
        margin-right: 0;
        margin-bottom: var(--spacing-md);
    }
    .chipload-inner { flex-direction: column; text-align: center; }
    .params-top-row .suggested-banner { flex-direction: row; align-items: center; }
}

@media (max-width: 480px) {
    .params-grid { grid-template-columns: 1fr; }
}

/* Test Preview Canvas */
.test-preview-container {
    background: #1a1a1a;
    border-radius: 8px;
    padding: 10px;
    text-align: center;
}

#testPreviewCanvas {
    background: #1a1a1a;
    border-radius: 4px;
    max-width: 100%;
}

/* =========================================================================
   RECOMMENDATIONS BANNER (Parameters Step)
   ========================================================================= */

.recommendations-banner {
    background: linear-gradient(135deg, rgba(0,184,148,0.1) 0%, rgba(0,184,148,0.05) 100%);
    border: 1px solid rgba(0,184,148,0.3);
    border-left: 4px solid var(--accent-color);
    border-radius: var(--border-radius);
    padding: 1rem;
}

.rec-header {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.rec-problem {
    margin-bottom: 0.75rem;
}

.problem-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.problem-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    color: var(--text-primary);
    cursor: pointer;
    font-size: 0.875rem;
    transition: all 0.2s ease;
}

.problem-btn:hover {
    border-color: var(--accent-color);
    background: rgba(0,184,148,0.1);
}

.problem-btn.active {
    border-color: var(--accent-color);
    background: rgba(0,184,148,0.2);
    box-shadow: 0 0 10px rgba(0,184,148,0.3);
}

/* Problem-specific colors */
.problem-btn[data-problem="screaming"] { border-left: 3px solid #e74c3c; }
.problem-btn[data-problem="chatter"] { border-left: 3px solid #f39c12; }
.problem-btn[data-problem="burning"] { border-left: 3px solid #e67e22; }
.problem-btn[data-problem="breaking"] { border-left: 3px solid #c0392b; }
.problem-btn[data-problem="great"] { border-left: 3px solid #27ae60; }
.problem-btn[data-problem="safe"] { border-left: 3px solid #3498db; }

.rec-suggestions {
    margin-top: 0.75rem;
    padding: 0.75rem;
    background: rgba(0,0,0,0.2);
    border-radius: 6px;
}

.rec-suggestion-text {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-size: 0.95rem;
}

/* Parameter suggestion highlights */
.param-suggestion {
    margin-top: 0.5rem;
    padding: 0.25rem 0.5rem;
    background: rgba(0,184,148,0.15);
    border-radius: 4px;
    font-size: 0.8rem;
    color: var(--accent-color);
}

.param-suggestion.decrease {
    background: rgba(231,76,60,0.15);
    color: #e74c3c;
}

.param-suggestion.increase {
    background: rgba(39,174,96,0.15);
    color: #27ae60;
}

/* Finalize Panel */
#finalizePanel {
    max-width: 800px;
    margin: 0 auto;
}

#finalizePanel .card-header.bg-success {
    background: linear-gradient(135deg, #27ae60 0%, #1e8449 100%) !important;
}

/* Run History compact */
.run-history {
    max-height: 200px;
    overflow-y: auto;
}

.run-history-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    font-size: 0.875rem;
}

.run-history-item:last-child {
    border-bottom: none;
}

.run-history-item .run-num {
    font-weight: 600;
    color: var(--accent-color);
}

.run-history-item .run-params {
    color: var(--text-muted);
    font-size: 0.8rem;
}

.run-history-item .run-score {
    font-weight: 600;
}

.run-history-item .run-score.good { color: #27ae60; }
.run-history-item .run-score.ok { color: #f39c12; }
.run-history-item .run-score.bad { color: #e74c3c; }

/* =========================================================================
   DIAGNOSIS CARD (Score Step)
   ========================================================================= */

.diagnosis-card {
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(30,30,40,1) 100%);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.diagnosis-header {
    background: linear-gradient(135deg, rgba(0,184,148,0.2) 0%, rgba(0,184,148,0.1) 100%);
    padding: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--accent-color);
    border-bottom: 1px solid var(--border-color);
}

.diagnosis-body {
    padding: 1.25rem;
}

.diagnosis-body p {
    color: var(--text-primary);
    line-height: 1.6;
}

.diagnosis-recommendation {
    background: rgba(0,0,0,0.2);
    padding: 0.75rem 1rem;
    border-radius: 6px;
    margin-top: 0.5rem;
}

.diagnosis-action {
    color: var(--accent-color);
    font-weight: 600;
}

.diagnosis-actions {
    padding: 1rem 1.25rem;
    background: rgba(0,0,0,0.15);
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

/* Problem-specific diagnosis colors */
.diagnosis-card.low-chipload .diagnosis-header {
    background: linear-gradient(135deg, rgba(241,196,15,0.2) 0%, rgba(241,196,15,0.1) 100%);
    color: #f1c40f;
}

.diagnosis-card.overload .diagnosis-header {
    background: linear-gradient(135deg, rgba(231,76,60,0.2) 0%, rgba(231,76,60,0.1) 100%);
    color: #e74c3c;
}

.diagnosis-card.optimal .diagnosis-header {
    background: linear-gradient(135deg, rgba(39,174,96,0.2) 0%, rgba(39,174,96,0.1) 100%);
    color: #27ae60;
}

.diagnosis-card.broken .diagnosis-header {
    background: linear-gradient(135deg, rgba(192,57,43,0.3) 0%, rgba(192,57,43,0.15) 100%);
    color: #c0392b;
}

/* Override Options */
.override-options {
    padding: 1rem 1.25rem;
    background: rgba(0,0,0,0.1);
    border-top: 1px solid var(--border-color);
}

.override-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 1rem;
}

.override-item label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
}

.override-item .form-control {
    background: var(--bg-input);
    border-color: var(--border-color);
    color: var(--text-primary);
}

/* =========================================================================
   SCALING TEST CARD
   ========================================================================= */

.scaling-test-card {
    background: linear-gradient(135deg, rgba(39,174,96,0.1) 0%, rgba(39,174,96,0.05) 100%);
    border: 1px solid rgba(39,174,96,0.3);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.scaling-header {
    background: linear-gradient(135deg, rgba(39,174,96,0.2) 0%, rgba(39,174,96,0.1) 100%);
    padding: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: #27ae60;
}

.scaling-body {
    padding: 1.25rem;
}

.scaling-body p {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.scaling-suggestion {
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,0.2);
    padding: 1rem;
    border-radius: 6px;
    margin-bottom: 0.5rem;
}

.scaling-current, .scaling-new {
    text-align: center;
}

.scaling-current small, .scaling-new small {
    display: block;
    color: var(--text-muted);
    font-size: 0.75rem;
    margin-bottom: 0.25rem;
}

.scaling-current div {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.scaling-new div {
    font-size: 1.1rem;
    font-weight: 600;
    color: #27ae60;
}

.scaling-actions {
    padding: 1rem 1.25rem;
    background: rgba(0,0,0,0.1);
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

/* =========================================================================
   Run Progress Indicator
   ========================================================================= */

.run-progress-dots {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.run-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--border-color);
    transition: all 0.3s ease;
}

.run-dot.active {
    background: var(--accent-color);
    box-shadow: 0 0 8px var(--accent-color);
}

.run-dot.completed {
    background: var(--success-color);
}

#runProgressCard {
    border-left: 4px solid var(--info-color);
}

#runProgressCard.runs-complete {
    border-left-color: var(--success-color);
    background: rgba(39, 174, 96, 0.1);
}

/* =========================================================================
   Post-Download Card
   ========================================================================= */

#postDownloadCard {
    border: 2px solid var(--accent-color);
    background: linear-gradient(135deg, rgba(0, 184, 148, 0.05) 0%, rgba(0, 184, 148, 0.02) 100%);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

#postDownloadCard .card-body {
    padding: 2.5rem 2rem;
}

#postDownloadCard .btn-accent {
    animation: pulse-glow 2s infinite;
}

/* Safety Hints Card */
.safety-hints-card {
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    background: var(--bg-card);
    border: 1px solid var(--warning-color);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.safety-hints-header {
    background: rgba(243, 156, 18, 0.15);
    padding: 0.75rem 1rem;
    font-weight: 600;
    color: var(--warning-color);
    border-bottom: 1px solid var(--warning-color);
}

.safety-hints-body {
    padding: 1rem;
}

.safety-hint-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.5rem 0;
}

.safety-hint-item:not(:last-child) {
    border-bottom: 1px solid var(--border-color);
}

.safety-hint-item i {
    font-size: 1.1rem;
    width: 24px;
    text-align: center;
    flex-shrink: 0;
}

.safety-hint-item span {
    font-size: 0.9rem;
}

.safety-hint-item strong {
    color: var(--text-primary);
}

@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 0 5px var(--accent-color);
    }
    50% {
        box-shadow: 0 0 20px var(--accent-color), 0 0 30px var(--accent-color);
    }
}

/* =========================================================================
   Finalize Warning
   ========================================================================= */

.finalize-warning {
    background: rgba(243, 156, 18, 0.1);
    border: 1px solid var(--warning-color);
    border-radius: var(--border-radius);
    padding: 1rem;
    margin-bottom: 1rem;
}

.finalize-warning strong {
    color: var(--warning-color);
}

/* =========================================================================
   Input Help Hints (Phase 4, #85)
   ========================================================================= */

.hint-icon {
    cursor: pointer;
    color: var(--accent-blue, #3498db);
    font-size: 0.85em;
    opacity: 0.7;
    transition: opacity 0.2s;
    user-select: none;
}

.hint-icon:hover,
.hint-icon:focus {
    opacity: 1;
}

/* =========================================================================
   How It Works Flow Diagram
   ========================================================================= */

.flow-diagram {
    text-align: center;
}

.flow-row {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.flow-phase {
    background: var(--bg-card);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1rem;
    min-width: 100px;
    transition: transform 0.2s, border-color 0.2s;
}

.flow-phase:hover {
    transform: translateY(-2px);
}

.flow-phase .flow-icon {
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
}

.flow-phase .flow-label {
    font-weight: 600;
    font-size: 0.9rem;
}

.flow-phase .flow-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.flow-arrow {
    color: var(--text-muted);
    font-size: 1.25rem;
    padding: 0 0.25rem;
}

.flow-loop {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--bg-input);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.flow-loop i {
    color: var(--info-color);
}

/* Phase-specific colors */
.phase-setup { border-color: var(--text-muted); }
.phase-setup .flow-icon { color: var(--text-muted); }

.phase-test { border-color: var(--info-color); }
.phase-test .flow-icon { color: var(--info-color); }

.phase-score { border-color: var(--warning-color); }
.phase-score .flow-icon { color: var(--warning-color); }

.phase-optimal { border-color: var(--success-color); }
.phase-optimal .flow-icon { color: var(--success-color); }

.phase-scale { border-color: var(--purple-color); }
.phase-scale .flow-icon { color: var(--purple-color); }

.phase-done { border-color: var(--accent-color); }
.phase-done .flow-icon { color: var(--accent-color); }

/* Responsive adjustments */
@media (max-width: 576px) {
    .flow-phase {
        min-width: 80px;
        padding: 0.75rem 0.5rem;
    }
    
    .flow-phase .flow-icon {
        font-size: 1.25rem;
    }
    
    .flow-phase .flow-label {
        font-size: 0.8rem;
    }
    
    .flow-phase .flow-desc {
        display: none;
    }
    
    .flow-arrow {
        font-size: 1rem;
    }
}