/**
 * OmniCalc Calculator Layout & Component Styles
 * Precision FinTech Design System for Calculators, Result Engines, and Editorial Layers
 */

/* Breadcrumb Navigation */
.breadcrumb-nav {
    padding-top: 1.5rem;
    padding-bottom: 0.75rem;
}

.breadcrumb-mobile-back {
    display: none;
}

.mobile-back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--primary);
    background: var(--primary-light);
    border: 1px solid var(--primary-border);
    padding: 6px 14px;
    border-radius: var(--radius-full);
    transition: all var(--transition-fast);
}

.mobile-back-link:hover {
    background: #e0e7ff;
    color: var(--primary-hover);
}

.breadcrumb-list {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.5rem;
    font-size: 0.86rem;
    color: var(--text-muted);
}

.breadcrumb-item a {
    color: var(--text-muted);
    font-weight: 500;
}

.breadcrumb-item a:hover {
    color: var(--primary);
    text-decoration: underline;
}

.breadcrumb-item.current {
    color: var(--text-main);
    font-weight: 600;
}

.breadcrumb-item .separator {
    margin-left: 0.25rem;
    color: var(--text-light);
    opacity: 0.6;
}

/* Calculator Page Main Layout */
.calculator-page-container {
    padding: 1rem 0 4.5rem;
}

.calculator-layout-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 350px;
    gap: 2.75rem;
    align-items: start;
}

.calculator-main-column {
    min-width: 0;
}

/* Page Intro Header */
.calculator-intro-header {
    margin-bottom: 2rem;
}

.calc-title-h1 {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: 0.85rem;
    color: var(--text-main);
    line-height: 1.18;
}

.calc-lead-description {
    font-size: 1.15rem;
    color: var(--text-muted);
    line-height: 1.65;
}

/* Warning & Legal Disclaimers */
.disclaimer-banner {
    background: #fffbeb;
    border: 1px solid #fde68a;
    border-left: 4px solid #f59e0b;
    border-radius: var(--radius-md);
    padding: 1.15rem 1.35rem;
    margin-bottom: 2rem;
    display: flex;
    align-items: flex-start;
    gap: 14px;
}

.disclaimer-icon {
    font-size: 1.35rem;
    flex-shrink: 0;
    line-height: 1;
}

.disclaimer-text {
    font-size: 0.9rem;
    color: #92400e;
    line-height: 1.55;
}

.disclaimer-text strong {
    color: #78350f;
}

/* Calculator Form Card */
.calculator-card {
    background: #ffffff;
    border: 1px solid var(--border);
    border-top: 4px solid var(--primary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 2.25rem;
    margin-bottom: 2.5rem;
    position: relative;
}

.calculator-header {
    margin-bottom: 2rem;
}

.calc-header-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 0.85rem;
    flex-wrap: wrap;
}

.calc-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: var(--radius-full);
    padding: 4px 12px;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.02em;
}

.calc-us-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: #dbeafe;
    color: #1e40af;
    border: 1px solid #bfdbfe;
    border-radius: var(--radius-full);
    padding: 3px 10px;
    font-size: 0.76rem;
    font-weight: 700;
}

.calc-form-title {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    margin-bottom: 0.35rem;
    color: var(--text-main);
}

.calc-form-subtitle {
    font-size: 0.92rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* Alert Notification */
.alert {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 1rem 1.25rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.75rem;
}

.alert-danger {
    background: var(--danger-light);
    border: 1px solid var(--danger-border);
    color: #991b1b;
}

/* Form Grid & Input Alignment */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.25rem;
}

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

.form-label {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-main);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 4px;
}

.required-star {
    color: var(--danger);
    font-weight: 700;
}

.input-unit-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
}

.form-control {
    width: 100%;
    height: 48px;
    padding: 0 16px;
    background: var(--bg-card-subtle);
    border: 1.5px solid var(--border);
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: 1rem;
    color: var(--text-main);
    transition: all var(--transition-fast);
}

.form-control:focus {
    background: #ffffff;
    border-color: var(--border-focus);
    outline: none;
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.16);
}

/* Crucial Alignment: Prevent typed input text from overlapping the unit badge */
.input-unit-wrapper.has-unit .form-control {
    padding-right: 76px;
}

.input-unit-badge {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-muted);
    background: #ffffff;
    padding: 3px 9px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    pointer-events: none;
    white-space: nowrap;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.form-select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23475569' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 14px center;
    padding-right: 44px;
    cursor: pointer;
}

.form-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding-top: 1.25rem;
    border-top: 1px solid var(--border);
}

.form-actions .btn {
    min-width: 150px;
}

/* Calculation Results Section */
.results-container {
    margin-bottom: 2.75rem;
    scroll-margin-top: 100px;
}

.result-card {
    background: #ffffff;
    border: 2px solid var(--primary-border);
    border-radius: var(--radius-lg);
    padding: 2.25rem;
    box-shadow: 0 10px 30px -4px rgba(79, 70, 229, 0.12);
    position: relative;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.result-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #4f46e5 0%, #06b6d4 100%);
}

.result-card.placeholder-state {
    opacity: 0.72;
    border-color: var(--border);
    box-shadow: var(--shadow-sm);
}

.result-card.placeholder-state::before {
    background: var(--border);
}

/* Result Card Top Bar */
.result-card-top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.25rem;
    padding-bottom: 0.85rem;
    border-bottom: 1px solid var(--border);
    flex-wrap: wrap;
    gap: 10px;
}

.result-status-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--primary);
}

.status-indicator-dot {
    width: 8px;
    height: 8px;
    background: #10b981;
    border-radius: 50%;
    box-shadow: 0 0 8px #10b981;
}

.result-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.btn-result-action {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--bg-card-subtle);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 6px 12px;
    font-family: var(--font-sans);
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-body);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-result-action:hover {
    background: #ffffff;
    border-color: var(--border-hover);
    color: var(--primary);
    box-shadow: var(--shadow-xs);
}

/* Result Card Header */
.result-card-header {
    display: flex;
    align-items: flex-start;
    gap: 1.25rem;
    margin-bottom: 1.75rem;
}

.result-badge-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--primary-light);
    border-radius: var(--radius-md);
    font-size: 1.5rem;
    flex-shrink: 0;
}

.result-summary-wrap {
    flex: 1;
}

.result-title {
    display: block;
    font-size: 0.82rem;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.06em;
    margin-bottom: 0.35rem;
}

.result-summary-lead {
    font-family: var(--font-heading);
    font-size: 2.1rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.2;
    letter-spacing: -0.02em;
    font-variant-numeric: tabular-nums;
}

/* Metric Items Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
    margin-bottom: 1.75rem;
}

.metric-item {
    background: var(--bg-card-subtle);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.15rem 1.25rem;
    display: flex;
    flex-direction: column;
    transition: all var(--transition-fast);
}

.metric-item:hover {
    background: #ffffff;
    border-color: var(--primary-border);
    box-shadow: var(--shadow-xs);
}

.metric-label {
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--text-muted);
    margin-bottom: 0.4rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.metric-value {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--text-main);
    letter-spacing: -0.01em;
    font-variant-numeric: tabular-nums;
    word-break: break-word;
}

.metric-placeholder {
    grid-column: 1 / -1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 1.5rem;
    background: var(--bg-card-subtle);
    border-radius: var(--radius-md);
    color: var(--text-light);
    font-size: 0.92rem;
    font-weight: 500;
}

.result-footer-details {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.9rem;
    color: var(--text-body);
    background: var(--primary-light);
    border: 1px solid var(--primary-border);
    padding: 11px 16px;
    border-radius: var(--radius-md);
    line-height: 1.5;
}

.result-footer-details .info-icon {
    font-size: 1.1rem;
    flex-shrink: 0;
}

/* Advertisements Wrapper */
.advertisement-wrapper {
    margin: 2.75rem 0;
    text-align: center;
}

.ad-container {
    background: #ffffff;
    border: 1px dashed var(--border-hover);
    border-radius: var(--radius-md);
    padding: 1.5rem 1rem;
    position: relative;
    min-height: 110px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.ad-label {
    position: absolute;
    top: 6px;
    right: 10px;
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-light);
    font-weight: 600;
}

.ad-placeholder-text {
    font-size: 0.84rem;
    color: var(--text-light);
    font-weight: 500;
}

/* Content Sections (SEO & Educational Layer) */
.calc-content-block {
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    margin-bottom: 2.25rem;
    box-shadow: var(--shadow-xs);
}

.calc-content-block h2 {
    font-size: 1.65rem;
    font-weight: 800;
    margin-bottom: 1.15rem;
    color: var(--text-main);
    letter-spacing: -0.02em;
}

.calc-content-block h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin: 1.75rem 0 0.85rem;
    color: var(--text-main);
}

.calc-content-block p {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-body);
}

.calc-content-block ul {
    list-style: disc;
    margin-left: 1.5rem;
    margin-bottom: 1.5rem;
}

.calc-content-block li {
    margin-bottom: 0.65rem;
    line-height: 1.65;
    color: var(--text-body);
}

.formula-card {
    background: #090e17;
    color: #38bdf8;
    border-radius: var(--radius-md);
    padding: 1.35rem 1.65rem;
    font-family: var(--font-mono);
    font-size: 1.05rem;
    margin: 1.5rem 0;
    overflow-x: auto;
    border-left: 4px solid var(--accent);
    box-shadow: var(--shadow-sm);
}

.example-box {
    background: var(--bg-card-subtle);
    border: 1px solid var(--border);
    border-left: 4px solid var(--primary);
    border-radius: var(--radius-md);
    padding: 1.5rem 1.75rem;
    margin: 1.5rem 0;
}

.example-box-title {
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--text-main);
    margin-bottom: 0.65rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* FAQ Accordion */
.calculator-faq-section {
    margin-bottom: 3.5rem;
}

.faq-accordion-group {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.faq-item {
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--transition-fast);
}

.faq-item[open] {
    border-color: var(--primary-border);
    box-shadow: var(--shadow-sm);
}

.faq-question {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--text-main);
    cursor: pointer;
    list-style: none;
    transition: color var(--transition-fast);
}

.faq-question:hover {
    color: var(--primary);
}

.faq-question::-webkit-details-marker {
    display: none;
}

.faq-chevron {
    font-size: 1.1rem;
    color: var(--text-light);
    transition: transform var(--transition-fast);
}

.faq-item[open] .faq-chevron {
    transform: rotate(180deg);
    color: var(--primary);
}

.faq-answer {
    padding: 0 1.5rem 1.35rem;
    color: var(--text-body);
    font-size: 0.96rem;
    line-height: 1.65;
}

/* Related Calculators Grid */
.related-tools-section {
    margin-bottom: 3rem;
}

.related-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.25rem;
}

.related-card-link {
    text-decoration: none;
    display: flex;
    height: 100%;
}

.related-card {
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 1.35rem;
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100%;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-xs);
}

.related-card:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.related-card-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.85rem;
}

.related-icon {
    font-size: 1.5rem;
}

.related-category-pill {
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    background: var(--primary-light);
    color: var(--primary);
    padding: 3px 9px;
    border-radius: var(--radius-full);
}

.related-card-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 0.45rem;
    line-height: 1.3;
}

.related-card-desc {
    font-size: 0.88rem;
    color: var(--text-muted);
    line-height: 1.5;
    margin-bottom: 1.15rem;
    flex-grow: 1;
}

.related-action-arrow {
    margin-top: auto;
    font-size: 0.86rem;
    font-weight: 700;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

/* Sidebar Widgets & Precision Alignment */
.calculator-sidebar {
    display: flex;
    flex-direction: column;
    gap: 1.75rem;
    position: sticky;
    top: 96px;
}

.sidebar-widget {
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    box-shadow: var(--shadow-xs);
}

.widget-title {
    font-size: 1.05rem;
    font-weight: 700;
    margin-bottom: 1.15rem;
    display: flex;
    align-items: center;
    gap: 8px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 0.75rem;
    color: var(--text-main);
}

.sidebar-cat-list li, .sidebar-popular-list li {
    margin-bottom: 0.5rem;
}

.sidebar-cat-list li:last-child, .sidebar-popular-list li:last-child {
    margin-bottom: 0;
}

.cat-list-link, .popular-tool-link {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-body);
    font-size: 0.92rem;
    font-weight: 500;
    padding: 7px 10px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.cat-list-link:hover, .popular-tool-link:hover {
    background: var(--primary-light);
    color: var(--primary);
}

.cat-emoji, .p-icon {
    font-size: 1.1rem;
    width: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

/* Sidebar US Trust Widget */
.trust-badge-widget {
    background: linear-gradient(135deg, #f0fdf4 0%, #ffffff 100%);
    border-color: var(--success-border);
}

.trust-badge-widget .widget-title {
    color: #166534;
    border-color: var(--success-border);
}

.widget-text {
    font-size: 0.88rem;
    color: #14532d;
    line-height: 1.55;
    margin-bottom: 0.85rem;
}

.trust-checklist {
    list-style: none;
    margin-bottom: 1rem;
}

.trust-checklist li {
    font-size: 0.82rem;
    font-weight: 600;
    color: #15803d;
    margin-bottom: 0.35rem;
}

.widget-link {
    font-size: 0.86rem;
    font-weight: 700;
    color: #15803d;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.widget-link:hover {
    text-decoration: underline;
    color: #166534;
}

/* Responsive Media Queries */
@media (max-width: 1024px) {
    .calculator-layout-grid {
        grid-template-columns: 1fr;
        gap: 2.25rem;
    }
    .calculator-sidebar {
        position: static;
        margin-top: 1rem;
    }
}

@media (max-width: 640px) {
    .breadcrumb-mobile-back {
        display: block;
        padding-top: 0.5rem;
    }
    .breadcrumb-desktop-trail {
        display: none;
    }
    .breadcrumb-nav {
        padding-top: 0.75rem;
        padding-bottom: 0.25rem;
    }
    .calculator-page-container {
        padding-top: 0.5rem;
    }
    .calculator-card {
        padding: 1.25rem;
        margin-bottom: 2rem;
    }
    .calc-title-h1 {
        font-size: clamp(1.75rem, 5vw + 0.5rem, 2.15rem);
        line-height: 1.22;
        margin-bottom: 0.65rem;
    }
    .calc-lead-description {
        font-size: 1rem;
        line-height: 1.55;
    }
    .calc-form-title {
        font-size: 1.3rem;
    }
    .calc-form-subtitle {
        font-size: 0.86rem;
    }
    .form-grid {
        grid-template-columns: 1fr;
        gap: 1.15rem;
        margin-bottom: 1.75rem;
    }
    /* 16px font-size strictly prevents iOS Safari automatic page zoom */
    .form-control {
        height: 48px;
        font-size: 16px !important;
    }
    .input-unit-wrapper.has-unit .form-control {
        padding-right: 70px;
    }
    .input-unit-badge {
        font-size: 0.78rem;
        padding: 3px 8px;
    }
    .form-actions {
        flex-direction: column;
        width: 100%;
        gap: 10px;
    }
    .form-actions .btn {
        width: 100%;
        height: 48px;
        min-height: 48px;
    }
    
    /* Result Card Mobile */
    .result-card {
        padding: 1.25rem;
    }
    .result-card-top-bar {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    .result-actions {
        width: 100%;
        display: flex;
        gap: 8px;
    }
    .btn-result-action {
        flex: 1;
        justify-content: center;
        height: 38px;
    }
    .result-card-header {
        gap: 12px;
        margin-bottom: 1.25rem;
    }
    .result-badge-icon {
        width: 40px;
        height: 40px;
        font-size: 1.25rem;
    }
    .result-summary-lead {
        font-size: 1.5rem;
        word-break: break-word;
    }
    .metrics-grid {
        grid-template-columns: 1fr;
        gap: 0.85rem;
    }
    .metric-item {
        padding: 1rem;
    }
    .metric-value {
        font-size: 1.2rem;
    }
    .result-footer-details {
        font-size: 0.85rem;
        padding: 10px 12px;
    }

    /* Content & Educational Layer Mobile */
    .calc-content-block {
        padding: 1.35rem;
        margin-bottom: 1.75rem;
    }
    .calc-content-block h2 {
        font-size: 1.4rem;
        margin-bottom: 0.85rem;
    }
    .calc-content-block h3 {
        font-size: 1.15rem;
        margin-top: 1.25rem;
    }
    .calc-content-block p, .calc-content-block li {
        font-size: 0.94rem;
        line-height: 1.6;
    }
    .formula-card {
        padding: 1.15rem 1.25rem;
        font-size: 0.95rem;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        white-space: pre-wrap;
        word-break: break-word;
    }
    .example-box {
        padding: 1.15rem;
    }
    .faq-question {
        padding: 1.1rem 1.25rem;
        font-size: 0.98rem;
    }
    .faq-answer {
        padding: 0 1.25rem 1.15rem;
        font-size: 0.92rem;
    }
    .related-cards-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
}