:root {
    --primary-navy: #1E2A4A;
    --primary-light: #2D3B5F;
    --bg-main: #F8F9FA;
    --bg-secondary: #F1F3F5;
    --bg-primary: #F8F9FA;
    --white: #FFFFFF;
    --green-industrial: #2E7D32;
    --orange-warning: #EF6C00;
    --red-critical: #C62828;
    --red-warning: #C62828;
    --blue-standard: #1565C0;
    --yellow-high: #FDD835;
    --text-primary: #212529;
    --text-secondary: #6C757D;
    --border-light: #DEE2E6;
    --border-medium: #CED4DA;
    --border-color: #DEE2E6;
    --hover-bg: #EBF5FF;
    --selected-border: #1565C0;
    --selected-bg: #F0F7FF;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.10);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --font-fa: 'IRANSans', 'IranSans', 'Vazir', Tahoma, sans-serif;
    --font-en: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Consolas', monospace;
    --transition: all 0.2s ease;
}
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
body {
    font-family: var(--font-fa);
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.7;
    direction: rtl;
    min-height: 100vh;
}
html[dir="ltr"] body {
    direction: ltr;
}
html[dir="rtl"] body {
    direction: rtl;
}
.header {
    background: var(--primary-navy);
    color: var(--white);
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-md);
}
.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    gap: 16px;
}
.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}
.logo svg {
    color: var(--green-industrial);
    flex-shrink: 0;
}
.logo h1 {
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: -0.3px;
    white-space: nowrap;
}
.header-actions {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-shrink: 0;
}
.language-selector {
    display: flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.08);
    padding: 6px 14px;
    border-radius: 20px;
    transition: var(--transition);
}
.language-selector:hover {
    background: rgba(255, 255, 255, 0.15);
}
.globe-icon {
    color: rgba(255, 255, 255, 0.7);
    flex-shrink: 0;
}
#language-select {
    background: transparent;
    border: none;
    color: var(--white);
    font-family: var(--font-fa);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    padding: 2px 4px;
    outline: none;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
}
#language-select option {
    background: var(--primary-navy);
    color: var(--white);
    padding: 8px;
}
.header-badge {
    background: rgba(255, 255, 255, 0.12);
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    white-space: nowrap;
}
.main-container {
    display: flex;
    max-width: 1400px;
    margin: 0 auto;
    min-height: calc(100vh - 64px);
}
.sidebar {
    width: 310px;
    background: var(--white);
    border-left: 1px solid var(--border-light);
    padding: 20px;
    flex-shrink: 0;
    overflow-y: auto;
}
html[dir="ltr"] .sidebar {
    border-left: none;
    border-right: 1px solid var(--border-light);
}
.progress-tracker h3,
.flags-panel h3 {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    font-weight: 600;
}
.steps {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.step {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px;
    border-radius: var(--radius-md);
    transition: var(--transition);
    position: relative;
    cursor: pointer;
    background: transparent;
}
.step:hover {
    background: var(--hover-bg);
}
.step:not(:last-child) {
    position: relative;
}
html[dir="rtl"] .step:not(:last-child)::after {
    content: '';
    position: absolute;
    right: 29px;
    left: auto;
    top: 52px;
    width: 2px;
    height: calc(100% - 24px);
    background: var(--border-light);
    z-index: 0;
}
html[dir="ltr"] .step:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 29px;
    right: auto;
    top: 52px;
    width: 2px;
    height: calc(100% - 10px);
    background: var(--border-light);
    z-index: 0;
}
.step.active {
    background: var(--selected-bg);
    border: 1px solid var(--selected-border);
}
.step.active::after {
    background: var(--blue-standard);
}
.step.completed .step-indicator {
    background: var(--green-industrial);
    color: var(--white);
    border-color: var(--green-industrial);
}
.step-indicator {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    font-weight: 700;
    flex-shrink: 0;
    background: var(--white);
    color: var(--text-secondary);
    border: 2px solid var(--border-light);
    font-family: var(--font-mono);
    transition: var(--transition);
    position: relative;
    z-index: 1;
}
.step.active .step-indicator {
    background: var(--blue-standard);
    color: var(--white);
    border-color: var(--blue-standard);
    box-shadow: 0 0 0 3px rgba(21, 101, 192, 0.2);
}
.step.completed .step-indicator {
    background: var(--green-industrial);
    border-color: var(--green-industrial);
}
.step-content {
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
}
.step-title {
    font-weight: 600;
    font-size: 0.9rem;
}
.step-status {
    font-size: 0.7rem;
    color: var(--text-secondary);
}
.step.active .step-status {
    color: var(--blue-standard);
    font-weight: 500;
}
.flags-panel {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--border-light);
}
.flag-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.no-flags {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-style: italic;
}
.flag-item {
    font-size: 0.8rem;
    color: var(--text-primary);
    padding: 6px 10px;
    background: #FFF3E0;
    border-right: 3px solid var(--orange-warning);
    border-radius: 4px;
    font-weight: 500;
}
html[dir="ltr"] .flag-item {
    border-right: none;
    border-left: 3px solid var(--orange-warning);
}
.flag-item.flag-warning {
    background: #FFEBEE;
    border-right-color: var(--red-critical);
}
html[dir="ltr"] .flag-item.flag-warning {
    border-right: none;
    border-left: 3px solid var(--red-critical);
}
.content {
    flex: 1;
    padding: 32px;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.question-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 32px;
    width: 100%;
    max-width: 750px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border-light);
    animation: fadeIn 0.3s ease;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}
.question-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}
.question-number {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--primary-navy);
    background: #E8ECF2;
    padding: 4px 10px;
    border-radius: var(--radius-sm);
}
.question-tag {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}
.tag-path {
    background: #E3F2FD;
    color: var(--blue-standard);
}
.tag-standard {
    background: #E8ECF2;
    color: var(--primary-navy);
}
.tag-conditional {
    background: #FFF3E0;
    color: var(--orange-warning);
}
.tag-auto {
    background: #E8F5E9;
    color: var(--green-industrial);
}
.tag-important {
    background: #FFEBEE;
    color: var(--red-critical);
}
.tag-warning {
    background: #FFF8E1;
    color: #F57F17;
}
.tag-info {
    background: #E3F2FD;
    color: var(--blue-standard);
}
.question-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
    line-height: 1.5;
}
.question-description {
    color: var(--text-secondary);
    margin-bottom: 24px;
    font-size: 0.95rem;
    line-height: 1.6;
}
.options-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.option-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    border: 2px solid var(--border-light);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    background: var(--white);
    gap: 14px;
    position: relative;
}
.option-card:hover {
    background: var(--hover-bg);
    border-color: var(--border-medium);
}
.option-card.selected,
.option-card:has(input:checked) {
    background: var(--selected-bg);
    border-color: var(--selected-border);
    box-shadow: 0 0 0 3px rgba(21, 101, 192, 0.08);
}
.option-card.option-recommended {
    border: 2px solid #4CAF50 !important;
    background: #F1F8E9 !important;
}
.option-content {
    display: flex;
    align-items: center;
    gap: 14px;
    flex: 1;
}
.option-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: var(--bg-main);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    flex-shrink: 0;
    transition: var(--transition);
}
.option-card:has(input:checked) .option-icon {
    background: #DBE9FA;
    color: var(--blue-standard);
}
.option-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.option-text strong {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
}
.option-text span {
    font-size: 0.85rem;
    color: var(--text-secondary);
}
.option-radio {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    border: 2px solid var(--border-medium);
    flex-shrink: 0;
    transition: var(--transition);
}
.option-card:has(input:checked) .option-radio {
    border-color: var(--blue-standard);
    background: var(--blue-standard);
    box-shadow: inset 0 0 0 4px var(--white);
}
.option-multi .option-checkbox {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border-medium);
    border-radius: 4px;
    flex-shrink: 0;
    transition: var(--transition);
}
.option-multi.selected .option-checkbox {
    background: var(--blue-standard);
    border-color: var(--blue-standard);
    position: relative;
}
.option-multi.selected .option-checkbox::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 0.7rem;
    font-weight: 700;
}
.option-card input[type="radio"],
.option-card input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    width: 0;
    height: 0;
}
.recommended-badge {
    padding: 2px 8px;
    background: #4CAF50;
    color: white;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 600;
}
.multi-select-notice {
    padding: 8px 16px;
    background: #E3F2FD;
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    font-size: 0.9rem;
    color: #1565C0;
}
.step-indicator-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin: 16px 0;
}
.step-badge {
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    background: var(--bg-primary);
    color: var(--text-secondary);
    border: 2px solid var(--border-color);
}
.step-badge.active {
    background: var(--blue-standard);
    color: white;
    border-color: var(--blue-standard);
}
.step-badge.completed {
    background: #E8F5E9;
    color: #2E7D32;
    border-color: #4CAF50;
}
.step-arrow {
    font-size: 1.2rem;
    color: var(--text-secondary);
}
.auto-detection-message {
    text-align: center;
    padding: 40px 20px;
    animation: fadeInUp 0.5s ease;
}
.auto-detection-message svg {
    margin-bottom: 16px;
    animation: pulse 2s infinite;
}
.auto-detection-message h2 {
    color: var(--primary-navy);
    margin-bottom: 8px;
}
.auto-detected-item {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 16px;
    padding: 12px;
    background: var(--bg-primary);
    border-radius: var(--radius-sm);
    font-size: 1.1rem;
}
.auto-label {
    color: var(--text-secondary);
}
.auto-value {
    font-weight: 700;
    color: var(--blue-standard);
}
.auto-detection-box {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 16px;
    background: linear-gradient(135deg, #E8F0FE, #F0F4FF);
    border: 1px solid var(--blue-standard);
    border-radius: var(--radius-md);
    margin: 16px 0;
}
.auto-detection-box.highlight {
    background: linear-gradient(135deg, #FFF3CD, #FFE69C);
    border-color: #FFC107;
}
.auto-detection-icon {
    font-size: 2rem;
}
.auto-detection-text strong {
    display: block;
    margin-bottom: 4px;
    color: var(--primary-navy);
}
.auto-note {
    background: #E8F5E9;
    border-right: 3px solid var(--green-industrial);
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    font-size: 0.9rem;
    color: var(--text-primary);
}
html[dir="ltr"] .auto-note {
    border-right: none;
    border-left: 3px solid var(--green-industrial);
}
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}
.numeric-inputs-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 16px;
    margin: 20px 0;
}
.input-group {
    display: flex;
    flex-direction: column;
}
.input-group label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
}
.input-label {
    font-weight: 600;
    color: var(--text-primary);
}
.input-unit {
    font-size: 0.8rem;
    color: var(--text-secondary);
    background: var(--bg-primary);
    padding: 2px 8px;
    border-radius: 4px;
}
.numeric-input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    transition: all 0.2s ease;
    font-family: var(--font-fa);
}
.numeric-input:focus {
    outline: none;
    border-color: var(--blue-standard);
    box-shadow: 0 0 0 3px rgba(21, 101, 192, 0.08);
}
html[dir="ltr"] .numeric-input {
    text-align: left;
}
html[dir="rtl"] .numeric-input {
    text-align: right;
}
.materials-container {
    margin: 24px 0;
}
.material-section {
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: 20px;
    margin-bottom: 16px;
}
.material-section-title {
    font-size: 1.1rem;
    color: var(--primary-navy);
    margin-bottom: 16px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--border-light);
}
.material-fields-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 12px;
}
.material-field {
    display: flex;
    flex-direction: column;
}
.material-field label {
    display: flex;
    flex-direction: column;
    margin-bottom: 4px;
}
.field-label {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-primary);
}
.field-hint {
    font-size: 0.75rem;
    color: var(--text-secondary);
    font-style: italic;
}
.material-input {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    transition: all 0.2s ease;
    background: white;
    font-family: var(--font-fa);
}
.material-input:focus {
    outline: none;
    border-color: var(--blue-standard);
    box-shadow: 0 0 0 3px rgba(30, 42, 74, 0.1);
}
.material-divider {
    height: 2px;
    background: linear-gradient(to right, transparent, var(--border-light), transparent);
    margin: 20px 0;
}
.surface-params-container {
    margin: 20px 0;
}
.param-group {
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: 20px;
    margin-bottom: 16px;
}
.param-group-title {
    font-size: 1rem;
    color: var(--primary-navy);
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--border-light);
}
.param-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 12px;
}
.param-field {
    display: flex;
    flex-direction: column;
}
.param-field label {
    display: flex;
    flex-direction: column;
    margin-bottom: 4px;
}
.field-desc {
    font-size: 0.75rem;
    color: var(--text-secondary);
}
.field-input-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
}
.field-unit {
    font-size: 0.8rem;
    color: var(--text-secondary);
    min-width: 50px;
}
.auto-calculation-box {
    background: #E8F5E9;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    margin: 12px 0;
    font-size: 0.9rem;
    text-align: center;
}
.conditional-sections {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin: 20px 0;
}
.cond-section {
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: 16px;
}
.cond-section h4 {
    color: var(--primary-navy);
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--border-color);
}
.form-section-header {
    font-weight: 700;
    color: var(--primary-navy);
    padding: 8px 0;
    margin-top: 8px;
    border-bottom: 2px solid var(--border-light);
    font-size: 0.95rem;
}
.damage-summary-box {
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: 16px;
    margin: 16px 0;
}
.summary-row {
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
}
.summary-row:last-child {
    border-bottom: none;
}
.summary-label {
    color: var(--text-secondary);
    font-weight: 600;
}
.summary-value {
    color: var(--primary-navy);
    font-weight: 700;
}
.detail-sections {
    margin: 20px 0;
}
.detail-section {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px;
    margin-bottom: 16px;
}
.detail-section.highlight {
    border-color: #FFC107;
    background: #FFFDE7;
}
.detail-section h4 {
    color: var(--primary-navy);
    margin-bottom: 12px;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--border-color);
}
.detail-list {
    list-style: none;
    padding: 0;
}
.detail-list li {
    padding: 6px 0;
    padding-right: 20px;
    position: relative;
    color: var(--text-primary);
    line-height: 1.6;
}
.detail-list li::before {
    content: '•';
    position: absolute;
    right: 0;
    color: var(--blue-standard);
    font-weight: 700;
}
.detail-list.recommendations li::before {
    content: '✅';
    right: 0;
}
html[dir="ltr"] .detail-list li {
    padding-right: 0;
    padding-left: 20px;
}
html[dir="ltr"] .detail-list li::before {
    right: auto;
    left: 0;
}
.schematic-placeholder {
    text-align: center;
    padding: 30px;
    background: var(--bg-primary);
    border-radius: var(--radius-sm);
    border: 2px dashed var(--border-color);
}
.schematic-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: 8px;
}
.mechanism-selection {
    margin: 16px 0;
    padding: 16px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
}
.mechanism-selection h4 {
    color: var(--primary-navy);
    margin-bottom: 8px;
}
.mechanism-selection p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 12px;
}
.param-card {
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px;
    transition: all 0.2s ease;
}
.param-card.featured {
    border: 2px solid var(--blue-standard);
    box-shadow: 0 2px 8px rgba(30, 42, 74, 0.1);
}
.param-card.conditional {
    border-left: 4px solid var(--blue-standard);
}
.param-card.geometry {
    border-left: 4px solid #4CAF50;
}
html[dir="ltr"] .param-card.conditional {
    border-left: none;
    border-right: 4px solid var(--blue-standard);
}
html[dir="ltr"] .param-card.geometry {
    border-left: none;
    border-right: 4px solid #4CAF50;
}
.param-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
}
.param-icon {
    font-size: 1.5rem;
}
.param-symbol {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--primary-navy);
    font-family: var(--font-mono);
}
.param-name {
    font-weight: 600;
    color: var(--text-primary);
}
.param-condition {
    font-size: 0.75rem;
    background: #E3F2FD;
    color: #1565C0;
    padding: 2px 8px;
    border-radius: 10px;
}
.param-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}
.param-input-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
}
.param-unit {
    font-size: 0.85rem;
    color: var(--text-secondary);
    min-width: 60px;
}
.conditional-params-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 16px;
    margin: 20px 0;
}
.geometry-params-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 16px;
    margin: 20px 0;
}
.single-param-container {
    max-width: 500px;
    margin: 20px auto;
}
.geometry-type-indicator {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: #E8F5E9;
    border-radius: var(--radius-md);
    margin: 16px 0;
}
.geometry-type-icon {
    font-size: 2rem;
}
.geometry-type-name {
    font-size: 1.1rem;
    font-weight: 700;
    color: #2E7D32;
}
.geometry-schematic {
    margin: 16px 0;
    padding: 20px;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    text-align: center;
    border: 2px dashed var(--border-color);
}
.info-box {
    display: flex;
    gap: 12px;
    padding: 12px 16px;
    background: #E3F2FD;
    border-radius: var(--radius-sm);
    margin: 12px 0;
    font-size: 0.9rem;
}
.info-box.warning-box {
    background: #FFF3CD;
    border-right: 4px solid #FFC107;
}
html[dir="ltr"] .info-box.warning-box {
    border-right: none;
    border-left: 4px solid #FFC107;
}
.info-icon {
    font-size: 1.2rem;
    flex-shrink: 0;
}
.info-content strong {
    display: block;
    margin-bottom: 4px;
    color: var(--primary-navy);
}
.warning-box {
    background: #FFF3CD;
    border: 1px solid #FFC107;
    border-radius: var(--radius-md);
    padding: 16px;
    margin: 16px 0;
}
.coating-detail-box {
    margin: 12px 0;
}
.validation-message {
    background: #FFF3CD;
    color: #856404;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    margin: 16px 0;
    font-size: 0.9rem;
    border-right: 4px solid #FFC107;
}
html[dir="ltr"] .validation-message {
    border-right: none;
    border-left: 4px solid #FFC107;
}
.conditional-form {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-bottom: 8px;
}
.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.form-label {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--text-primary);
}
.form-select,
.form-input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border-light);
    border-radius: var(--radius-md);
    font-family: var(--font-fa);
    font-size: 0.95rem;
    color: var(--text-primary);
    background: var(--white);
    transition: var(--transition);
    outline: none;
}
.form-select:focus,
.form-input:focus {
    border-color: var(--blue-standard);
    box-shadow: 0 0 0 3px rgba(21, 101, 192, 0.08);
}
.form-input::placeholder {
    color: var(--text-secondary);
}
html[dir="ltr"] .form-select,
html[dir="ltr"] .form-input {
    text-align: left;
}
html[dir="rtl"] .form-select,
html[dir="rtl"] .form-input {
    text-align: right;
}
.action-bar {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 28px;
}
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    border-radius: var(--radius-md);
    font-family: var(--font-fa);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    text-decoration: none;
    white-space: nowrap;
}
.btn-primary {
    background: var(--primary-navy);
    color: var(--white);
}
.btn-primary:hover:not(:disabled) {
    background: var(--primary-light);
    box-shadow: var(--shadow-md);
}
.btn-primary:disabled {
    background: var(--border-light);
    color: var(--text-secondary);
    cursor: not-allowed;
}
.btn-secondary {
    background: var(--white);
    color: var(--text-primary);
    border: 1px solid var(--border-medium);
}
.btn-secondary:hover {
    background: var(--bg-main);
    border-color: var(--text-secondary);
}
.btn-large {
    padding: 14px 32px;
    font-size: 1.05rem;
}
.btn-arrow {
    transition: var(--transition);
}
html[dir="ltr"] .btn-arrow {
    transform: rotate(180deg);
}
html[dir="rtl"] .btn-arrow {
    transform: rotate(0deg);
}
.btn-arrow-back {
    transition: var(--transition);
}
html[dir="rtl"] .btn-arrow-back {
    transform: rotate(180deg);
}
html[dir="ltr"] .btn-arrow-back {
    transform: rotate(0deg);
}
.completion-message {
    text-align: center;
    padding: 40px 20px;
}
.completion-icon {
    font-size: 4rem;
    margin-bottom: 16px;
    animation: bounceIn 0.6s ease;
}
.completion-message h2 {
    color: #2E7D32;
    margin-bottom: 8px;
}
.step2-summary {
    text-align: right;
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    padding: 20px;
    margin: 20px 0;
    display: inline-block;
}
.summary-item {
    display: flex;
    gap: 12px;
    padding: 8px 0;
    border-bottom: 1px solid var(--border-color);
}
.summary-item:last-child {
    border-bottom: none;
}
.summary-item span {
    color: var(--text-secondary);
}
.summary-item strong {
    color: var(--primary-navy);
}
@keyframes bounceIn {
    0% { transform: scale(0); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}
.feedback-message {
    margin-top: 16px;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
}
.feedback-message.success {
    background: #E8F5E9;
    color: var(--green-industrial);
    border-right: 3px solid var(--green-industrial);
}
html[dir="ltr"] .feedback-message.success {
    border-right: none;
    border-left: 3px solid var(--green-industrial);
}
.report-container {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px;
    width: 100%;
    max-width: 850px;
    box-shadow: var(--shadow-md);
    animation: fadeIn 0.4s ease;
}
.report-container h1 {
    font-size: 1.6rem;
    color: var(--primary-navy);
    margin-bottom: 4px;
}
.report-subtitle {
    color: var(--green-industrial);
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 1rem;
}
.report-meta {
    display: flex;
    gap: 20px;
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-light);
}
.report-section {
    margin-bottom: 20px;
    padding: 16px;
    background: var(--bg-main);
    border-radius: var(--radius-md);
}
.report-section h3 {
    font-size: 1rem;
    margin-bottom: 12px;
    color: var(--primary-navy);
    font-weight: 700;
}
.report-path-name {
    font-size: 1.1rem;
}
.report-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}
.report-table th {
    background: var(--primary-navy);
    color: var(--white);
    padding: 10px 14px;
    font-weight: 600;
    text-align: right;
}
.report-table td {
    padding: 8px 14px;
    border-bottom: 1px solid var(--border-light);
    text-align: right;
}
.report-table tr:hover td {
    background: rgba(0,0,0,0.02);
}
html[dir="ltr"] .report-table th,
html[dir="ltr"] .report-table td {
    text-align: left;
}
.report-flags-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.report-flags-list li {
    padding: 6px 10px;
    background: #FFF3E0;
    border-right: 3px solid var(--orange-warning);
    border-radius: 4px;
    font-size: 0.9rem;
}
.report-flags-list li.flag-critical {
    background: #FFEBEE;
    border-right-color: var(--red-critical);
    font-weight: 700;
}
.report-flags-list li.flag-warning {
    background: #FFEBEE;
    border-right-color: var(--red-critical);
}
html[dir="ltr"] .report-flags-list li {
    border-right: none;
    border-left: 3px solid var(--orange-warning);
}
html[dir="ltr"] .report-flags-list li.flag-critical {
    border-right: none;
    border-left: 3px solid var(--red-critical);
}
html[dir="ltr"] .report-flags-list li.flag-warning {
    border-right: none;
    border-left: 3px solid var(--red-critical);
}
.report-warning {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 8px;
    border-right: 4px solid var(--orange-warning);
    background: #FFF8E1;
}
.report-warning strong {
    display: block;
    margin-bottom: 6px;
    font-size: 0.95rem;
}
.report-warning p {
    font-size: 0.9rem;
    color: var(--text-primary);
    line-height: 1.6;
}
.report-warning.critical {
    border-right-color: var(--red-critical);
    background: #FFEBEE;
}
.report-warning.urgent {
    background: #FFF3E0;
}
.report-warning.high {
    background: #FFFDE7;
    border-right-color: var(--yellow-high);
}
.report-info {
    padding: 12px 16px;
    background: #E3F2FD;
    border-radius: var(--radius-sm);
    border-right: 4px solid var(--blue-standard);
    margin-bottom: 8px;
}
.report-info strong {
    display: block;
    margin-bottom: 6px;
    font-size: 0.95rem;
}
.report-info p {
    font-size: 0.9rem;
    color: var(--text-primary);
    line-height: 1.6;
}
html[dir="ltr"] .report-warning {
    border-right: none;
    border-left: 4px solid var(--orange-warning);
}
html[dir="ltr"] .report-warning.critical {
    border-right: none;
    border-left: 4px solid var(--red-critical);
}
html[dir="ltr"] .report-info {
    border-right: none;
    border-left: 4px solid var(--blue-standard);
}
.report-action {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-top: 32px;
    flex-wrap: wrap;
}
@media print {
    body {
        background: var(--white) !important;
    }
    .header,
    .sidebar,
    .btn,
    #btn-start-step2,
    #btn-print-pdf,
    .report-action,
    .feedback-message,
    .action-bar {
        display: none !important;
    }
    .main-container {
        display: block !important;
        min-height: auto !important;
    }
    .content {
        padding: 0 !important;
    }
    .report-container {
        box-shadow: none !important;
        border: 1px solid #ccc !important;
        max-width: 100% !important;
        padding: 20px !important;
        page-break-inside: avoid;
    }
    .report-section {
        page-break-inside: avoid;
        background: #f9f9f9 !important;
    }
    .report-warning,
    .report-info {
        page-break-inside: avoid;
    }
    .report-table th {
        background: #e0e0e0 !important;
        color: #000 !important;
    }
}
@media (max-width: 900px) {
    .header {
        height: auto;
        padding: 12px 16px;
    }
    .header-content {
        flex-direction: column;
        gap: 10px;
    }
    .logo h1 {
        font-size: 1rem;
    }
    .header-actions {
        width: 100%;
        justify-content: center;
        flex-wrap: wrap;
    }
    .main-container {
        flex-direction: column;
    }
    .sidebar {
        width: 100%;
        border-left: none;
        border-bottom: 1px solid var(--border-light);
        padding: 16px;
    }
    html[dir="ltr"] .sidebar {
        border-right: none;
        border-bottom: 1px solid var(--border-light);
    }
    .content {
        padding: 20px 16px;
    }
    .question-card {
        padding: 20px;
        max-width: 100%;
    }
    .question-title {
        font-size: 1.15rem;
    }
    .option-card {
        padding: 12px 14px;
    }
    .report-container {
        padding: 20px;
    }
    .report-action {
        flex-direction: column;
    }
    .btn-large {
        width: 100%;
        justify-content: center;
    }
    .numeric-inputs-container,
    .conditional-params-grid,
    .geometry-params-container,
    .material-fields-grid,
    .param-grid {
        grid-template-columns: 1fr;
    }
    .auto-detection-box {
        flex-direction: column;
        text-align: center;
    }
}
@media (max-width: 480px) {
    .question-card {
        padding: 16px;
    }
    .option-content {
        gap: 10px;
    }
    .option-icon {
        width: 36px;
        height: 36px;
    }
    .option-text strong {
        font-size: 0.9rem;
    }
    .btn {
        padding: 8px 18px;
        font-size: 0.9rem;
    }
}
.result-panel {
    background: linear-gradient(135deg, #f5f7fa 0%, #e8ecf1 100%);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin: 20px 0;
    border: 1px solid var(--border-light);
}
.result-panel h3 {
    color: var(--primary-navy);
    margin-bottom: 16px;
    font-size: 1.1rem;
    font-weight: 700;
}
.result-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 12px;
}
.result-item {
    background: var(--white);
    padding: 14px 16px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
    display: flex;
    flex-direction: column;
    gap: 6px;
    transition: var(--transition);
}
.result-item:hover {
    box-shadow: var(--shadow-sm);
}
.result-item.highlight {
    border-color: var(--blue-standard);
    background: #f0f7ff;
}
.result-item.success {
    border-right: 3px solid var(--green-industrial);
}
.result-item.danger {
    border-right: 3px solid var(--red-critical);
    background: #fff5f5;
}
html[dir="ltr"] .result-item.success {
    border-right: none;
    border-left: 3px solid var(--green-industrial);
}
html[dir="ltr"] .result-item.danger {
    border-right: none;
    border-left: 3px solid var(--red-critical);
}
.result-item .label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}
.result-item .value {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
    font-family: var(--font-mono);
}
.result-item.danger .value {
    color: var(--red-critical);
}
.result-item.success .value {
    color: var(--green-industrial);
}
.formula-panel {
    background: var(--white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 20px;
    margin: 20px 0;
}
.formula-panel h4 {
    color: var(--primary-navy);
    margin-bottom: 16px;
    font-size: 1rem;
    font-weight: 700;
    padding-bottom: 8px;
    border-bottom: 2px solid var(--border-light);
}
.formula-step {
    margin-bottom: 20px;
}
.formula-step:last-child {
    margin-bottom: 0;
}
.formula-step strong {
    display: block;
    color: var(--primary-navy);
    margin-bottom: 8px;
    font-size: 0.95rem;
}
.formula-box {
    background: #fafbfc;
    border: 1px solid var(--border-light);
    border-radius: var(--radius-sm);
    padding: 14px 16px;
    font-family: var(--font-mono);
}
.formula-text {
    font-size: 0.9rem;
    color: var(--text-primary);
    margin-bottom: 6px;
    line-height: 1.8;
}
.formula-values {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
    padding-right: 16px;
}
.formula-result {
    font-weight: 700;
    color: var(--blue-standard);
    font-size: 0.95rem;
    padding-top: 6px;
    border-top: 1px dashed var(--border-light);
}
.formula-result.highlight {
    color: var(--primary-navy);
    font-size: 1.05rem;
}
.formula-result.success {
    color: var(--green-industrial);
}
.formula-result.danger {
    color: var(--red-critical);
}
.conditions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 12px;
    margin: 20px 0;
}
.condition-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px;
    border: 2px solid var(--border-light);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    background: var(--white);
    position: relative;
}
.condition-card:hover {
    background: var(--hover-bg);
    border-color: var(--border-medium);
}
.condition-card.selected {
    background: var(--selected-bg);
    border-color: var(--selected-border);
    box-shadow: 0 0 0 3px rgba(21, 101, 192, 0.08);
}
.condition-icon {
    width: 44px;
    height: 44px;
    border-radius: var(--radius-md);
    background: var(--bg-main);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
    transition: var(--transition);
}
.condition-card.selected .condition-icon {
    background: #dbe9fa;
}
.condition-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
}
.condition-info strong {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
}
.condition-info small {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.4;
}
.condition-info .page-ref {
    font-size: 0.75rem;
    color: var(--blue-standard);
    font-weight: 500;
}
.condition-check {
    width: 24px;
    height: 24px;
    border: 2px solid var(--border-medium);
    border-radius: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--blue-standard);
    flex-shrink: 0;
    transition: var(--transition);
}
.condition-card.selected .condition-check {
    background: var(--blue-standard);
    border-color: var(--blue-standard);
    color: var(--white);
}
.hint {
    display: block;
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-style: italic;
    margin-top: 8px;
}
.system-card {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 16px;
    border: 2px solid var(--border-light);
    border-radius: var(--radius-md);
    transition: var(--transition);
    background: var(--white);
    cursor: pointer;
}
.system-card:hover {
    background: var(--hover-bg);
    border-color: var(--border-medium);
}
.system-card.recommended {
    border-color: var(--green-industrial) !important;
    background: #f1f8e9 !important;
    position: relative;
}
.system-card.recommended {
    position: relative;
    border: 2px solid var(--green-industrial);
    background: #f1f8e9;
}
.system-card.recommended::before {
    position: absolute;
    top: -12px;
    background: var(--green-industrial);
    color: var(--white);
    padding: 2px 12px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
}
html[dir="rtl"] .system-card.recommended::before {
    right: 16px;
    left: auto;
}
html[dir="ltr"] .system-card.recommended::before {
    left: 16px;
    right: auto;
}
.system-card.recommended.lang-fa::before {
    content: '✓ پیشنهاد سیستم';
}
.system-card.recommended.lang-en::before {
    content: '✓ Recommended System';
}
.system-card.eliminated {
    opacity: 0.5;
    background: #f5f5f5;
    border-color: #ddd;
    cursor: not-allowed;
    text-decoration: line-through;
}
.system-card.eliminated .system-icon {
    background: #eee;
    color: #999;
}
.system-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--bg-main);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}
.system-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
    flex: 1;
}
.system-info strong {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
}
.system-info small {
    font-size: 0.8rem;
    color: var(--text-secondary);
}
.system-reason {
    font-size: 0.75rem;
    color: var(--red-critical);
    font-weight: 500;
}
.equipment-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin: 20px 0;
}
.equipment-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--bg-main);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
    transition: var(--transition);
}
.equipment-item:hover {
    border-color: var(--border-medium);
}
.equipment-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: var(--primary-navy);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}
.equipment-info {
    flex: 1;
}
.equipment-info strong {
    display: block;
    font-size: 0.9rem;
    color: var(--text-primary);
    margin-bottom: 2px;
}
.equipment-info small {
    font-size: 0.8rem;
    color: var(--text-secondary);
}
.equipment-page {
    font-size: 0.75rem;
    color: var(--blue-standard);
    font-weight: 500;
    flex-shrink: 0;
}
.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 10px;
    margin: 20px 0;
}
.problem-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border: 2px solid var(--border-light);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    background: var(--white);
}
.problem-card:hover {
    border-color: var(--border-medium);
    background: var(--hover-bg);
}
.problem-card.selected {
    border-color: var(--orange-warning);
    background: #fff8e1;
}
.problem-number {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--bg-main);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    flex-shrink: 0;
}
.problem-card.selected .problem-number {
    background: var(--orange-warning);
    color: var(--white);
}
.problem-text {
    font-size: 0.9rem;
    color: var(--text-primary);
}
.solution-panel {
    background: #e8f5e9;
    border: 1px solid var(--green-industrial);
    border-radius: var(--radius-lg);
    padding: 20px;
    margin: 20px 0;
}
.solution-panel h3 {
    color: var(--green-industrial);
    margin-bottom: 12px;
    font-size: 1.1rem;
}
.solution-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.solution-item {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px;
    background: var(--white);
    border-radius: var(--radius-sm);
    border-right: 3px solid var(--green-industrial);
}
.solution-number {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--green-industrial);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.8rem;
    flex-shrink: 0;
}
.solution-content {
    flex: 1;
}
.solution-content strong {
    display: block;
    font-size: 0.9rem;
    color: var(--text-primary);
    margin-bottom: 4px;
}
.solution-content p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.5;
}
.solution-content .solution-page {
    font-size: 0.75rem;
    color: var(--blue-standard);
    margin-top: 4px;
}
.maintenance-plan {
    background: var(--white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 20px;
    margin: 20px 0;
}
.maintenance-plan h3 {
    color: var(--primary-navy);
    margin-bottom: 16px;
    font-size: 1.1rem;
}
.maintenance-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border-light);
}
.maintenance-item:last-child {
    border-bottom: none;
}
.maintenance-check {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    flex-shrink: 0;
}
.maintenance-check.required {
    background: var(--green-industrial);
    position: relative;
}
.maintenance-check.required::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 0.7rem;
    font-weight: 700;
}
.maintenance-check.optional {
    border: 2px solid var(--border-medium);
}
.maintenance-text {
    flex: 1;
    font-size: 0.9rem;
    color: var(--text-primary);
}
.maintenance-reason {
    font-size: 0.8rem;
    color: var(--text-secondary);
}
.summary-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    margin: 20px 0;
}
.summary-card {
    background: var(--white);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-md);
    padding: 16px;
}
.summary-card h4 {
    color: var(--primary-navy);
    margin-bottom: 8px;
    font-size: 0.95rem;
    font-weight: 700;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--border-light);
}
.summary-card ul {
    list-style: none;
    padding: 0;
}
.summary-card ul li {
    padding: 4px 0;
    font-size: 0.85rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}
.summary-card ul li::before {
    content: '•';
    color: var(--blue-standard);
    font-weight: 700;
}
.alert {
    padding: 12px 16px;
    border-radius: var(--radius-md);
    margin: 16px 0;
    font-size: 0.9rem;
}
.alert-warning {
    background: #fff3cd;
    border: 1px solid #ffc107;
    color: #856404;
}
.alert-danger {
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
}
.alert-info {
    background: #d1ecf1;
    border: 1px solid #bee5eb;
    color: #0c5460;
}
.alert-success {
    background: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
}
.spinner-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 40px;
    gap: 16px;
}
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-light);
    border-top: 4px solid var(--blue-standard);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}
.page-ref-badge {
    display: inline-block;
    background: #e3f2fd;
    color: var(--blue-standard);
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 0.75rem;
    font-weight: 500;
    margin-right: 8px;
}
@media (max-width: 768px) {
    .result-grid {
        grid-template-columns: 1fr;
    }
    .conditions-grid,
    .problem-grid {
        grid-template-columns: 1fr;
    }
    .system-card {
        flex-direction: column;
        text-align: center;
    }
    .system-card.recommended::before {
        right: 50%;
        transform: translateX(50%);
    }
    .equipment-item {
        flex-direction: column;
        text-align: center;
    }
}
.page-ref-badge,
.equipment-page,
.solution-page,
[class*="page-ref"],
span:has(> 📖) {
    display: none !important;
}