/**
 * DiecastCALC Calculator Styles
 * Modern, responsive design for HPDC process calculator
 */

/* CSS Variables */
:root {
    --dc-primary: #2563eb;
    --dc-primary-dark: #1e40af;
    --dc-primary-light: #dbeafe;
    --dc-success: #10b981;
    --dc-success-light: #d1fae5;
    --dc-warning: #f59e0b;
    --dc-warning-light: #fef3c7;
    --dc-danger: #ef4444;
    --dc-danger-light: #fee2e2;
    --dc-gray-50: #f9fafb;
    --dc-gray-100: #f3f4f6;
    --dc-gray-200: #e5e7eb;
    --dc-gray-300: #d1d5db;
    --dc-gray-500: #6b7280;
    --dc-gray-700: #374151;
    --dc-gray-900: #111827;
    --dc-radius: 8px;
    --dc-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --dc-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* Container */
.diecast-calc-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    color: var(--dc-gray-900);
    line-height: 1.6;
}

/* Header */
.diecast-calc-header {
    text-align: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 3px solid var(--dc-primary);
}

.diecast-calc-header h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--dc-primary-dark);
    margin: 0 0 10px 0;
}

.diecast-calc-subtitle {
    color: var(--dc-gray-500);
    font-size: 16px;
    margin: 0;
}

/* Form Sections */
.diecast-calc-section {
    background: white;
    border-radius: var(--dc-radius);
    box-shadow: var(--dc-shadow);
    padding: 20px;
    margin-bottom: 20px;
}

.section-title {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 18px;
    font-weight: 600;
    color: var(--dc-gray-700);
    margin: 0 0 20px 0;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--dc-gray-200);
}

.section-icon {
    font-size: 20px;
}

/* Input Grid */
.input-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
}

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

.input-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--dc-gray-700);
    margin-bottom: 6px;
    display: flex;
    align-items: center;
    gap: 5px;
}

.input-group .unit {
    color: var(--dc-gray-500);
    font-weight: 400;
}

.input-group input,
.input-group select {
    padding: 10px 14px;
    border: 2px solid var(--dc-gray-200);
    border-radius: var(--dc-radius);
    font-size: 15px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.input-group input:focus,
.input-group select:focus {
    outline: none;
    border-color: var(--dc-primary);
    box-shadow: 0 0 0 3px var(--dc-primary-light);
}

.input-group input:invalid {
    border-color: var(--dc-danger);
}

.input-hint {
    font-size: 12px;
    color: var(--dc-gray-500);
    margin-top: 4px;
}

/* Tooltip */
.tooltip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    background: var(--dc-gray-200);
    border-radius: 50%;
    font-size: 10px;
    color: var(--dc-gray-500);
    cursor: help;
    position: relative;
}

.tooltip:hover::after {
    content: attr(data-tip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--dc-gray-900);
    color: white;
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 400;
    white-space: nowrap;
    max-width: 250px;
    white-space: normal;
    z-index: 100;
    margin-bottom: 5px;
}

/* Collapsible Sections */
.collapsible .section-title {
    cursor: pointer;
    user-select: none;
}

.collapsible .section-title:hover {
    color: var(--dc-primary);
}

.toggle-icon {
    margin-left: auto;
    transition: transform 0.2s;
}

.collapsible.open .toggle-icon {
    transform: rotate(180deg);
}

.collapsible-content {
    display: none;
}

.collapsible.open .collapsible-content {
    display: block;
}

/* Buttons */
.diecast-calc-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 30px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 30px;
    font-size: 16px;
    font-weight: 600;
    border: none;
    border-radius: var(--dc-radius);
    cursor: pointer;
    transition: all 0.2s;
}

.btn-primary {
    background: linear-gradient(135deg, var(--dc-primary) 0%, var(--dc-primary-dark) 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--dc-shadow-lg);
}

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.btn-secondary {
    background: var(--dc-gray-100);
    color: var(--dc-gray-700);
}

.btn-secondary:hover {
    background: var(--dc-gray-200);
}

.btn-icon {
    font-size: 18px;
}

/* Results Section */
.diecast-calc-results {
    background: white;
    border-radius: var(--dc-radius);
    box-shadow: var(--dc-shadow-lg);
    padding: 25px;
    margin-top: 30px;
}

.diecast-calc-results h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--dc-primary-dark);
    margin: 0 0 20px 0;
    text-align: center;
}

/* Status Badge */
.result-status {
    text-align: center;
    margin-bottom: 20px;
}

.status-badge {
    display: inline-block;
    padding: 8px 25px;
    border-radius: 25px;
    font-weight: 700;
    font-size: 16px;
    text-transform: uppercase;
}

.status-pass {
    background: var(--dc-success);
    color: white;
}

.status-fail {
    background: var(--dc-danger);
    color: white;
}

.status-marginal {
    background: var(--dc-warning);
    color: white;
}

/* Highlight Cards */
.result-highlights {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin-bottom: 25px;
}

.highlight-card {
    background: linear-gradient(135deg, var(--dc-primary) 0%, var(--dc-primary-dark) 100%);
    color: white;
    padding: 20px;
    border-radius: var(--dc-radius);
    text-align: center;
}

.highlight-value {
    font-size: 32px;
    font-weight: 700;
}

.highlight-label {
    font-size: 12px;
    opacity: 0.9;
    margin-top: 5px;
}

/* Warnings & Recommendations */
.result-warnings,
.result-recommendations {
    padding: 15px;
    border-radius: var(--dc-radius);
    margin-bottom: 20px;
}

.result-warnings {
    background: var(--dc-warning-light);
    border-left: 4px solid var(--dc-warning);
}

.result-recommendations {
    background: var(--dc-primary-light);
    border-left: 4px solid var(--dc-primary);
}

.result-warnings h4,
.result-recommendations h4 {
    margin: 0 0 10px 0;
    font-size: 14px;
}

.result-warnings ul,
.result-recommendations ul {
    margin: 0;
    padding-left: 20px;
}

.result-warnings li,
.result-recommendations li {
    margin-bottom: 5px;
    font-size: 14px;
}

/* Tabs */
.result-tabs {
    display: flex;
    gap: 5px;
    border-bottom: 2px solid var(--dc-gray-200);
    margin-bottom: 20px;
    overflow-x: auto;
}

.tab-btn {
    padding: 10px 20px;
    background: none;
    border: none;
    font-size: 14px;
    font-weight: 500;
    color: var(--dc-gray-500);
    cursor: pointer;
    border-bottom: 3px solid transparent;
    transition: all 0.2s;
    white-space: nowrap;
}

.tab-btn:hover {
    color: var(--dc-primary);
}

.tab-btn.active {
    color: var(--dc-primary);
    border-bottom-color: var(--dc-primary);
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

/* Result Tables */
.result-table {
    width: 100%;
    border-collapse: collapse;
}

.result-table th,
.result-table td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid var(--dc-gray-200);
}

.result-table th {
    background: var(--dc-gray-100);
    font-weight: 600;
    color: var(--dc-gray-700);
}

.result-table td:last-child {
    text-align: right;
    font-weight: 500;
    color: var(--dc-primary);
}

.result-table tr:last-child td {
    border-bottom: none;
}

.result-table tr.total-row {
    background: var(--dc-primary-light);
    font-weight: 700;
}

/* PQ² Sections */
.pq2-section {
    margin-bottom: 25px;
}

.pq2-section h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--dc-gray-700);
    margin: 0 0 10px 0;
    padding-bottom: 5px;
    border-bottom: 1px solid var(--dc-gray-200);
}

/* Chart Container */
.chart-container {
    position: relative;
    height: 400px;
    padding: 10px;
}

/* Email Report Section */
.email-report-section {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 2px solid var(--dc-gray-200);
}

.email-report-section h4 {
    font-size: 18px;
    font-weight: 600;
    color: var(--dc-gray-700);
    margin: 0 0 15px 0;
}

.email-form {
    display: flex;
    gap: 10px;
}

.email-form input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid var(--dc-gray-200);
    border-radius: var(--dc-radius);
    font-size: 15px;
}

.email-form input:focus {
    outline: none;
    border-color: var(--dc-primary);
    box-shadow: 0 0 0 3px var(--dc-primary-light);
}

.email-status {
    margin-top: 10px;
    padding: 10px;
    border-radius: var(--dc-radius);
    font-size: 14px;
}

.email-status.success {
    background: var(--dc-success-light);
    color: var(--dc-success);
}

.email-status.error {
    background: var(--dc-danger-light);
    color: var(--dc-danger);
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.9);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--dc-gray-200);
    border-top-color: var(--dc-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-overlay p {
    margin-top: 15px;
    font-size: 16px;
    color: var(--dc-gray-700);
}

/* Responsive */
@media (max-width: 768px) {
    .diecast-calc-container {
        padding: 10px;
    }

    .diecast-calc-header h2 {
        font-size: 22px;
    }

    .input-grid {
        grid-template-columns: 1fr;
    }

    .diecast-calc-actions {
        flex-direction: column;
    }

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

    .result-highlights {
        grid-template-columns: repeat(2, 1fr);
    }

    .highlight-value {
        font-size: 24px;
    }

    .email-form {
        flex-direction: column;
    }

    .result-tabs {
        flex-wrap: nowrap;
    }

    .tab-btn {
        padding: 8px 12px;
        font-size: 12px;
    }
}

/* Module Headers */
.module-header {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.module-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: linear-gradient(135deg, var(--dc-primary) 0%, var(--dc-primary-dark) 100%);
    color: white;
    border-radius: 50%;
    font-weight: 700;
    font-size: 14px;
}

.module-header-inline {
    display: flex;
    align-items: center;
    gap: 10px;
}

.module-header-inline .module-number {
    width: 28px;
    height: 28px;
    font-size: 12px;
}

/* Header Badges */
.header-badges {
    display: flex;
    gap: 10px;
    justify-content: center;
    margin-top: 15px;
}

.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 12px;
    font-weight: 600;
}

.badge-nadca {
    background: var(--dc-success-light);
    color: var(--dc-success);
}

.badge-version {
    background: var(--dc-primary-light);
    color: var(--dc-primary);
}

/* Section Descriptions */
.section-description {
    background: var(--dc-gray-50);
    padding: 15px;
    border-radius: var(--dc-radius);
    margin-bottom: 20px;
}

.section-description p {
    margin: 0 0 10px 0;
    color: var(--dc-gray-700);
    font-size: 14px;
}

.section-description p:last-child {
    margin-bottom: 0;
}

/* Formula Box */
.formula-box {
    background: white;
    border: 1px solid var(--dc-gray-200);
    border-left: 4px solid var(--dc-primary);
    padding: 12px 15px;
    border-radius: 0 var(--dc-radius) var(--dc-radius) 0;
    margin-top: 10px;
}

.formula-box strong {
    display: block;
    font-size: 12px;
    color: var(--dc-gray-500);
    margin-bottom: 5px;
}

.formula-box code {
    display: block;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 16px;
    color: var(--dc-primary-dark);
    background: none;
    padding: 0;
}

.formula-box .formula-desc {
    display: block;
    font-size: 11px;
    color: var(--dc-gray-500);
    margin-top: 5px;
}

/* Material Guide Table */
.material-guide {
    margin-top: 20px;
    background: var(--dc-gray-50);
    padding: 15px;
    border-radius: var(--dc-radius);
}

.material-guide h4 {
    margin: 0 0 15px 0;
    font-size: 14px;
    color: var(--dc-gray-700);
}

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

.guide-table th,
.guide-table td {
    padding: 8px 12px;
    text-align: left;
    border-bottom: 1px solid var(--dc-gray-200);
}

.guide-table th {
    background: var(--dc-gray-100);
    font-weight: 600;
}

.guide-table tr:last-child td {
    border-bottom: none;
}

/* Checkbox Group */
.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
    font-size: 15px;
}

.checkbox-group input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

/* Large Button */
.btn-large {
    padding: 15px 40px;
    font-size: 18px;
}

/* Result Header */
.result-header {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-bottom: 25px;
}

/* Result Score */
.result-score {
    font-size: 14px;
    color: var(--dc-gray-500);
}

.result-score strong {
    font-size: 24px;
    color: var(--dc-primary);
}

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

.result-section {
    background: var(--dc-gray-50);
    padding: 15px;
    border-radius: var(--dc-radius);
}

.result-section h4 {
    margin: 0 0 15px 0;
    font-size: 16px;
    color: var(--dc-gray-700);
    font-weight: 600;
}

.section-formula {
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 13px;
    color: var(--dc-primary);
    background: white;
    padding: 8px 12px;
    border-radius: 4px;
    margin: 0 0 15px 0;
}

.section-desc {
    font-size: 13px;
    color: var(--dc-gray-500);
    margin: 0 0 10px 0;
}

/* Flow Pattern Box */
.flow-pattern-box {
    padding: 15px;
    border-radius: var(--dc-radius);
    margin-top: 10px;
}

.flow-pattern-box.risk-low {
    background: var(--dc-success-light);
    border-left: 4px solid var(--dc-success);
}

.flow-pattern-box.risk-medium {
    background: var(--dc-warning-light);
    border-left: 4px solid var(--dc-warning);
}

.flow-pattern-box.risk-high {
    background: var(--dc-danger-light);
    border-left: 4px solid var(--dc-danger);
}

.flow-pattern-box h5 {
    margin: 0 0 8px 0;
    font-size: 16px;
    font-weight: 600;
}

.flow-pattern-box p {
    margin: 0;
    font-size: 14px;
}

/* Shot Profile Diagram */
.shot-diagram {
    margin-top: 20px;
    padding: 20px;
    background: white;
    border: 1px solid var(--dc-gray-200);
    border-radius: var(--dc-radius);
}

.shot-diagram svg {
    width: 100%;
    height: auto;
    max-height: 200px;
}

/* Pressure Gauge Container */
.pressure-gauge-container {
    padding: 20px;
    text-align: center;
}

.pressure-bar {
    width: 100%;
    height: 30px;
    background: linear-gradient(to right, var(--dc-success), var(--dc-warning), var(--dc-danger));
    border-radius: 15px;
    position: relative;
    margin: 20px 0;
}

.pressure-marker {
    position: absolute;
    top: -5px;
    width: 4px;
    height: 40px;
    background: var(--dc-gray-900);
    border-radius: 2px;
    transform: translateX(-50%);
}

.pressure-labels {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
    color: var(--dc-gray-500);
}

/* Chart Legend Extended */
.chart-legend-extended {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--dc-gray-700);
}

.legend-color {
    width: 20px;
    height: 4px;
    border-radius: 2px;
}

.legend-color.machine {
    background: #2563eb;
}

.legend-color.die {
    background: #ef4444;
}

.legend-color.window {
    background: #10b981;
}

.legend-color.op {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #f59e0b;
}

/* Email Description */
.email-desc {
    font-size: 14px;
    color: var(--dc-gray-500);
    margin: 0 0 15px 0;
}

/* Notes List in Results */
.notes-list {
    margin: 15px 0 0 0;
    padding-left: 20px;
}

.notes-list li {
    font-size: 13px;
    color: var(--dc-gray-600);
    margin-bottom: 5px;
}

/* Progress Indicator */
.module-score-indicator {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-top: 15px;
}

.score-bar {
    flex: 1;
    height: 8px;
    background: var(--dc-gray-200);
    border-radius: 4px;
    overflow: hidden;
}

.score-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.5s ease;
}

.score-fill.good {
    background: var(--dc-success);
}

.score-fill.medium {
    background: var(--dc-warning);
}

.score-fill.poor {
    background: var(--dc-danger);
}

.score-value {
    font-size: 14px;
    font-weight: 600;
    color: var(--dc-gray-700);
    min-width: 40px;
}

/* ============================================================ */
/* BEGINNER-FRIENDLY ENHANCEMENTS */
/* ============================================================ */

/* Beginner Summary Panel */
.beginner-summary-panel {
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
    border: 2px solid var(--dc-primary);
    border-radius: var(--dc-radius);
    margin-bottom: 25px;
    overflow: hidden;
}

.summary-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px 20px;
    background: var(--dc-primary);
    color: white;
}

.summary-header h4 {
    margin: 0;
    flex: 1;
    font-size: 16px;
}

.summary-icon {
    font-size: 24px;
}

.toggle-summary-btn {
    background: none;
    border: none;
    color: white;
    font-size: 14px;
    cursor: pointer;
    padding: 5px;
    transition: transform 0.3s;
}

.summary-content {
    padding: 20px;
}

.summary-text {
    font-size: 15px;
    line-height: 1.7;
    color: var(--dc-gray-700);
    margin-bottom: 20px;
}

.summary-text p {
    margin: 0 0 10px 0;
}

/* Health Indicators */
.health-indicators {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}

.health-item {
    display: flex;
    align-items: center;
    gap: 12px;
    background: white;
    padding: 12px 15px;
    border-radius: var(--dc-radius);
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.health-icon {
    font-size: 24px;
    width: 40px;
    text-align: center;
}

.health-info {
    flex: 1;
}

.health-label {
    font-size: 12px;
    color: var(--dc-gray-500);
    display: block;
    margin-bottom: 5px;
}

.health-bar {
    height: 8px;
    background: var(--dc-gray-200);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 4px;
}

.health-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.5s ease, background-color 0.3s;
    width: 0%;
}

.health-fill.good { background: var(--dc-success); }
.health-fill.warning { background: var(--dc-warning); }
.health-fill.danger { background: var(--dc-danger); }

.health-status {
    font-size: 11px;
    font-weight: 600;
}

.health-status.good { color: var(--dc-success); }
.health-status.warning { color: var(--dc-warning); }
.health-status.danger { color: var(--dc-danger); }

/* Highlight Card Enhancements */
.highlight-card {
    position: relative;
    cursor: help;
}

.highlight-card[data-tooltip]:hover::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--dc-gray-900);
    color: white;
    padding: 10px 15px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 400;
    white-space: normal;
    width: 220px;
    text-align: left;
    z-index: 100;
    margin-bottom: 10px;
    line-height: 1.4;
}

.highlight-explain {
    font-size: 11px;
    margin-top: 8px;
    padding-top: 8px;
    border-top: 1px solid rgba(255,255,255,0.2);
    opacity: 0.9;
}

/* Process Flow Infographic */
.process-infographic {
    background: white;
    border-radius: var(--dc-radius);
    padding: 20px;
    margin-bottom: 25px;
    box-shadow: var(--dc-shadow);
}

.process-infographic h4 {
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0 0 20px 0;
    font-size: 16px;
    color: var(--dc-gray-700);
}

.info-icon {
    font-size: 20px;
}

.process-flow {
    display: flex;
    align-items: stretch;
    justify-content: space-between;
    gap: 10px;
    overflow-x: auto;
    padding: 10px 0;
}

.process-step {
    flex: 1;
    min-width: 140px;
    background: var(--dc-gray-50);
    border-radius: var(--dc-radius);
    padding: 15px;
    text-align: center;
    position: relative;
    border: 2px solid var(--dc-gray-200);
    transition: all 0.3s;
}

.process-step.active {
    border-color: var(--dc-primary);
    background: var(--dc-primary-light);
}

.process-step.complete {
    border-color: var(--dc-success);
    background: var(--dc-success-light);
}

.step-number {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 24px;
    height: 24px;
    background: var(--dc-primary);
    color: white;
    border-radius: 50%;
    font-size: 12px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
}

.step-icon {
    font-size: 32px;
    margin-bottom: 8px;
}

.step-name {
    font-weight: 600;
    font-size: 14px;
    color: var(--dc-gray-700);
    margin-bottom: 5px;
}

.step-value {
    font-size: 18px;
    font-weight: 700;
    color: var(--dc-primary);
    margin-bottom: 8px;
}

.step-desc {
    font-size: 11px;
    color: var(--dc-gray-500);
    line-height: 1.4;
}

.process-arrow {
    display: flex;
    align-items: center;
    font-size: 24px;
    color: var(--dc-gray-300);
}

/* Educational Box */
.edu-box {
    background: linear-gradient(135deg, #fefce8 0%, #fef9c3 100%);
    border: 1px solid #fbbf24;
    border-radius: var(--dc-radius);
    margin-bottom: 20px;
    overflow: hidden;
}

.edu-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 15px;
    background: rgba(251, 191, 36, 0.2);
    border-bottom: 1px solid rgba(251, 191, 36, 0.3);
}

.edu-header h5 {
    margin: 0;
    font-size: 14px;
    color: #92400e;
}

.edu-icon {
    font-size: 20px;
}

.edu-content {
    padding: 15px;
}

.edu-content p {
    margin: 0 0 12px 0;
    font-size: 14px;
    color: #78350f;
    line-height: 1.6;
}

.edu-formula {
    background: white;
    padding: 10px 15px;
    border-radius: 6px;
    font-family: 'Consolas', monospace;
    font-size: 14px;
    color: var(--dc-primary-dark);
    margin: 10px 0;
    border-left: 3px solid var(--dc-primary);
}

.edu-tips {
    background: rgba(255,255,255,0.7);
    padding: 10px 15px;
    border-radius: 6px;
    font-size: 13px;
    color: #78350f;
}

.tip-label {
    font-weight: 600;
}

.edu-diagram {
    margin: 15px 0;
}

.diagram-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 0;
    font-size: 13px;
    color: #78350f;
}

.diagram-color {
    width: 16px;
    height: 16px;
    border-radius: 3px;
}

.diagram-color.machine-color { background: #2563eb; }
.diagram-color.die-color { background: #ef4444; }
.diagram-color.op-color { background: #f59e0b; border-radius: 50%; }

.edu-comparison {
    display: grid;
    gap: 10px;
    margin-top: 15px;
}

.comparison-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px;
    border-radius: 6px;
    background: white;
}

.comparison-item.good { border-left: 4px solid var(--dc-success); }
.comparison-item.warning { border-left: 4px solid var(--dc-warning); }
.comparison-item.danger { border-left: 4px solid var(--dc-danger); }

.comp-icon {
    font-size: 20px;
}

.comp-text strong {
    display: block;
    font-size: 13px;
    margin-bottom: 3px;
}

.comp-text p {
    margin: 0;
    font-size: 12px;
    color: var(--dc-gray-600);
}

/* Visual Gauge Container */
.visual-gauge-container {
    text-align: center;
    padding: 20px;
    background: var(--dc-gray-50);
    border-radius: var(--dc-radius);
    margin-bottom: 20px;
}

.visual-gauge-container h5 {
    margin: 0 0 15px 0;
    font-size: 14px;
    color: var(--dc-gray-700);
}

.circular-gauge {
    display: inline-block;
}

.circular-gauge svg {
    width: 120px;
    height: 120px;
}

.gauge-bg {
    fill: none;
    stroke: var(--dc-gray-200);
    stroke-width: 10;
}

.gauge-fill {
    fill: none;
    stroke: var(--dc-success);
    stroke-width: 10;
    stroke-linecap: round;
    transform: rotate(-90deg);
    transform-origin: center;
    transition: stroke-dashoffset 1s ease, stroke 0.3s;
}

.gauge-fill.warning { stroke: var(--dc-warning); }
.gauge-fill.danger { stroke: var(--dc-danger); }

.gauge-value {
    font-size: 18px;
    font-weight: 700;
    fill: var(--dc-gray-700);
}

.gauge-label {
    font-size: 10px;
    fill: var(--dc-gray-500);
}

.gauge-legend {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 15px;
    font-size: 11px;
}

.legend-good { color: var(--dc-success); }
.legend-warn { color: var(--dc-warning); }
.legend-danger { color: var(--dc-danger); }

/* Mini Chart Container */
.mini-chart-container {
    margin-bottom: 15px;
}

/* Machine Recommendation Box */
.machine-recommendation {
    margin-top: 15px;
    background: var(--dc-primary-light);
    border-radius: var(--dc-radius);
    overflow: hidden;
}

.rec-header {
    background: var(--dc-primary);
    color: white;
    padding: 8px 12px;
    font-size: 13px;
    font-weight: 600;
}

.rec-content {
    padding: 12px;
    font-size: 13px;
    color: var(--dc-gray-700);
}

/* PQ² Visual Summary */
.pq2-visual-summary {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

.pq2-indicator {
    display: flex;
    align-items: center;
    gap: 15px;
    padding: 15px 25px;
    background: var(--dc-gray-50);
    border-radius: 30px;
    border: 2px solid var(--dc-gray-200);
}

.pq2-indicator.good {
    background: var(--dc-success-light);
    border-color: var(--dc-success);
}

.pq2-indicator.warning {
    background: var(--dc-warning-light);
    border-color: var(--dc-warning);
}

.pq2-indicator.danger {
    background: var(--dc-danger-light);
    border-color: var(--dc-danger);
}

.indicator-icon {
    font-size: 28px;
}

.indicator-text {
    font-size: 14px;
    font-weight: 600;
    color: var(--dc-gray-700);
}

/* Fill Time Visual */
.fill-time-visual {
    background: var(--dc-gray-50);
    padding: 20px;
    border-radius: var(--dc-radius);
    margin-bottom: 20px;
}

.fill-time-visual h5 {
    margin: 0 0 15px 0;
    font-size: 14px;
    color: var(--dc-gray-700);
}

.time-bar-container {
    max-width: 500px;
    margin: 0 auto;
}

.time-bar-labels {
    display: flex;
    justify-content: space-between;
    font-size: 11px;
    color: var(--dc-gray-500);
    margin-bottom: 5px;
}

.time-bar-wrapper {
    position: relative;
}

.time-bar-bg {
    height: 24px;
    background: linear-gradient(to right, var(--dc-success), var(--dc-warning) 80%, var(--dc-danger));
    border-radius: 12px;
    position: relative;
    overflow: hidden;
}

.time-bar-actual {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: var(--dc-primary);
    border-radius: 12px 0 0 12px;
    transition: width 0.5s ease;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: 8px;
    color: white;
    font-size: 11px;
    font-weight: 600;
}

.time-bar-nadca-marker {
    position: absolute;
    top: -8px;
    width: 3px;
    height: 40px;
    background: var(--dc-gray-900);
    border-radius: 2px;
    transition: left 0.5s ease;
}

.time-bar-nadca-marker::after {
    content: '▼';
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 12px;
    color: var(--dc-gray-900);
}

.time-bar-legend {
    display: flex;
    justify-content: center;
    gap: 25px;
    margin-top: 15px;
    font-size: 12px;
}

.legend-actual { color: var(--dc-primary); }
.legend-nadca { color: var(--dc-gray-700); }

/* Print Styles */
@media print {
    .diecast-calc-container {
        max-width: 100%;
    }

    .diecast-calc-form,
    .diecast-calc-actions,
    .email-report-section,
    .result-tabs {
        display: none;
    }

    .diecast-calc-results {
        box-shadow: none;
        margin: 0;
    }

    .tab-pane {
        display: block !important;
        page-break-inside: avoid;
    }

    .edu-box,
    .beginner-summary-panel {
        break-inside: avoid;
    }
}

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

    .module-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .header-badges {
        flex-wrap: wrap;
    }

    .chart-legend-extended {
        gap: 15px;
    }
}