/* ===================================================================
   Nestpoint DA Spread Index -- Light / Nestpoint Brand Theme
   =================================================================== */

/* --- Reset & Foundation --- */
* {
    box-sizing: border-box;
}

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

body {
    margin: 0;
    padding: 0;
    background-color: #ffffff;
    color: #1a1a1a;
    font-family: 'Inter', 'Segoe UI', 'Helvetica Neue', sans-serif;
    -webkit-font-smoothing: antialiased;
    font-size: 14px;
    line-height: 1.5;
}

/* --- Navigation Bar --- */
.nav-bar {
    position: sticky;
    top: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    height: 56px;
    background: #ffffff;
    border-bottom: 1px solid #e5e5e5;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
}

.nav-logo img {
    height: 22px;
    width: auto;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a,
.nav-link {
    font-size: 0.86rem;
    font-weight: 500;
    color: #1a1a1a;
    text-decoration: none;
    letter-spacing: 0.35px;
    transition: color 0.15s;
    cursor: pointer;
}

.nav-links a:hover,
.nav-link:hover {
    color: #1a1a1a;
}

.nav-link-button {
    background: none;
    border: none;
    padding: 0;
    margin: 0;
    appearance: none;
    -webkit-appearance: none;
    font-family: inherit;
    font-size: inherit;
    font-weight: 600;
    line-height: inherit;
    letter-spacing: inherit;
    color: inherit;
    text-decoration: none;
    display: inline;
    vertical-align: baseline;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.btn-pill {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 7px 18px;
    border-radius: 100px;
    font-size: 0.78rem;
    font-weight: 600;
    letter-spacing: 0.3px;
    text-decoration: none;
    transition: background 0.15s, color 0.15s;
    cursor: pointer;
    border: none;
}

.btn-pill-black {
    background: #1a1a1a;
    color: #ffffff;
}

.btn-pill-black:hover {
    background: #333333;
}

.btn-pill-outline {
    background: transparent;
    color: #1a1a1a;
    border: 1px solid #e5e5e5;
}

.btn-pill-outline:hover {
    border-color: #1a1a1a;
}

.blog-nav-btn {
    background: #ffffff;
    color: #1a1a1a;
    border: 1px solid #1a1a1a;
}

.btn-pill-accent {
    background: #c4956a;
    color: #ffffff;
}

.btn-pill-accent:hover {
    background: #b07d52;
}

/* --- Above the Fold --- */
.above-fold {
    max-width: 1200px;
    margin: 0 auto;
    padding: 36px 32px 20px;
}

.fold-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 40px;
    margin-bottom: 24px;
}

.fold-title-block {
    flex: 1;
    min-width: 0;
}

.fold-eyebrow {
    font-size: 0.7rem;
    letter-spacing: 3px;
    color: #999999;
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: 8px;
}

.eyebrow-mobile-break {
    display: none;
}

.fold-title {
    font-size: 1.9rem;
    font-weight: 700;
    color: #1a1a1a;
    margin: 0 0 8px 0;
    line-height: 1.15;
    letter-spacing: -0.3px;
}

.fold-author {
    font-size: 0.92rem;
    color: #444444;
    font-weight: 500;
    letter-spacing: 0.3px;
    margin: 0 0 10px 0;
}

.fold-subtitle {
    font-size: 0.92rem;
    color: #555555;
    line-height: 1.55;
    margin: 0 0 16px 0;
    max-width: 560px;
    font-weight: 400;
}

.fold-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.fold-stats {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 8px;
    flex-shrink: 0;
}

.stat-row {
    display: flex;
    align-items: center;
    gap: 10px;
}

.stat-label {
    font-size: 0.72rem;
    color: #999999;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-value {
    font-size: 0.92rem;
    font-weight: 600;
    color: #1a1a1a;
    font-variant-numeric: tabular-nums;
}

/* Data status badges */
.data-badge-live,
.data-badge-sample {
    display: inline-block;
    padding: 3px 12px;
    border-radius: 100px;
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.data-badge-live {
    background-color: rgba(46, 125, 50, 0.08);
    color: #2e7d32;
    border: 1px solid rgba(46, 125, 50, 0.25);
}

.data-badge-sample {
    background-color: rgba(196, 149, 106, 0.1);
    color: #c4956a;
    border: 1px solid rgba(196, 149, 106, 0.3);
}

/* Flagship chart card */
.flagship-card {
    background: #ffffff;
    border: 1px solid #e5e5e5;
    border-radius: 8px;
    padding: 20px 20px 12px;
    margin-bottom: 8px;
}

.flagship-card .chart-heading {
    font-size: 0.82rem;
    font-weight: 600;
    color: #1a1a1a;
    margin: 0 0 2px 0;
}

.flagship-card .chart-description {
    font-size: 0.76rem;
    color: #999999;
    margin: 0 0 8px 0;
}

/* --- Section Divider --- */
.section-divider {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 32px;
}

.section-divider hr {
    border: none;
    border-top: 1px solid #e5e5e5;
    margin: 0;
}

/* --- Below the Fold: Step Progression --- */
.steps-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 32px 32px 16px;
}

.steps-header {
    margin-bottom: 28px;
}

.steps-header h2 {
    font-size: 1.3rem;
    font-weight: 700;
    color: #1a1a1a;
    margin: 0 0 4px 0;
    letter-spacing: -0.2px;
}

.steps-header p {
    font-size: 0.85rem;
    color: #555555;
    margin: 0;
}

/* Individual step */
.step-card {
    background: #ffffff;
    border: 1px solid #e5e5e5;
    border-radius: 8px;
    padding: 20px 20px 12px;
    margin-bottom: 20px;
}

.step-header {
    display: flex;
    align-items: baseline;
    gap: 12px;
    margin-bottom: 4px;
}

.step-number {
    font-size: 0.7rem;
    font-weight: 700;
    color: #c4956a;
    letter-spacing: 1px;
    flex-shrink: 0;
}

.step-title {
    font-size: 0.88rem;
    font-weight: 600;
    color: #1a1a1a;
    margin: 0;
}

.step-description {
    font-size: 0.78rem;
    color: #777777;
    line-height: 1.5;
    margin: 0 0 10px 0;
    max-width: 800px;
}

/* --- Components Section --- */
.components-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 32px 32px;
}

.components-section .section-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: #1a1a1a;
    margin: 0 0 4px 0;
    letter-spacing: -0.2px;
}

.components-section .section-description {
    font-size: 0.85rem;
    color: #555555;
    margin: 0 0 20px 0;
}

.tables-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 24px;
}

.table-card {
    background: #ffffff;
    border: 1px solid #e5e5e5;
    border-radius: 8px;
    padding: 16px 18px;
}

.table-card-title {
    font-size: 0.78rem;
    font-weight: 700;
    color: #1a1a1a;
    margin: 0 0 3px 0;
    letter-spacing: 0.3px;
    text-transform: uppercase;
}

.table-card-subtitle {
    font-size: 0.72rem;
    color: #999999;
    margin: 0 0 12px 0;
}

.component-table {
    width: 100%;
    border-collapse: collapse;
}

.component-table th {
    text-align: left;
    padding: 5px 8px;
    font-size: 0.68rem;
    font-weight: 600;
    color: #999999;
    border-bottom: 1px solid #e5e5e5;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    white-space: nowrap;
}

.component-table th.center {
    text-align: center;
}

.component-table td {
    padding: 5px 8px;
    font-size: 0.78rem;
    color: #333333;
    border-bottom: 1px solid #f5f5f5;
}

.component-table td.center {
    text-align: center;
    color: #c4956a;
    font-weight: 600;
}

/* Sparkline & z-score heatmap cells */
.component-table .sparkline-cell {
    width: 80px;
    min-width: 68px;
    padding: 3px 4px;
    vertical-align: middle;
}

.component-table .zscore-cell {
    width: 62px;
    min-width: 56px;
    text-align: center;
    padding: 3px 4px;
    font-variant-numeric: tabular-nums;
    border-radius: 0;
    vertical-align: middle;
}

.zscore-pill {
    display: inline-block;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.2px;
    font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    line-height: 1;
}

/* Drilldown explorer */
.drilldown-card {
    background: #ffffff;
    border: 1px solid #e5e5e5;
    border-radius: 8px;
    padding: 20px 20px 12px;
}

.drilldown-card .section-title {
    font-size: 0.88rem;
    font-weight: 600;
    color: #1a1a1a;
    margin: 0 0 4px 0;
}

.drilldown-card .section-description {
    font-size: 0.76rem;
    color: #777777;
    margin: 0 0 12px 0;
}

/* Dash dropdown dark overrides -> light overrides */
.component-dropdown .Select-control {
    background-color: #ffffff !important;
    border-color: #e5e5e5 !important;
    color: #1a1a1a !important;
    border-radius: 6px !important;
    min-height: 36px !important;
}

.component-dropdown .Select-menu-outer {
    background-color: #ffffff !important;
    border-color: #e5e5e5 !important;
    border-radius: 6px !important;
    box-shadow: 0 4px 16px rgba(0,0,0,0.08) !important;
}

.component-dropdown .Select-value-label,
.component-dropdown .Select-placeholder {
    color: #1a1a1a !important;
    font-size: 0.82rem !important;
}

.component-dropdown .Select-option {
    background-color: #ffffff !important;
    color: #1a1a1a !important;
    font-size: 0.82rem !important;
    padding: 6px 12px !important;
}

.component-dropdown .Select-option.is-focused {
    background-color: rgba(196, 149, 106, 0.08) !important;
}

.component-dropdown .Select-input input {
    color: #1a1a1a !important;
}

/* --- Methodology Section --- */
.methodology-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 32px 32px;
}

.methodology-section .section-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: #1a1a1a;
    margin: 0 0 16px 0;
    letter-spacing: -0.2px;
}

.method-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 24px;
}

.method-block {
    margin-bottom: 20px;
}

.method-heading {
    font-size: 0.85rem;
    font-weight: 600;
    color: #1a1a1a;
    margin: 0 0 6px 0;
}

.method-text {
    font-size: 0.82rem;
    color: #555555;
    line-height: 1.6;
    margin: 0 0 8px 0;
}

/* Math notation */
.method-math {
    background-color: #f7f7f7;
    border-radius: 6px;
    padding: 16px 18px;
    font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 0.78rem;
    color: #333333;
    line-height: 2;
    border: 1px solid #e5e5e5;
}

.method-math p {
    margin: 0;
}

.method-math {
    overflow-x: auto;
}

/* --- Blog Banner + Reader --- */
.blog-banner-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 6px 32px 18px;
}

.blog-banner-header {
    margin-bottom: 10px;
}

.blog-banner-title {
    margin: 0 0 2px 0;
    font-size: 0.86rem;
    color: #1a1a1a;
    letter-spacing: 0.4px;
    text-transform: uppercase;
}

.blog-banner-subtitle {
    margin: 0;
    font-size: 0.78rem;
    color: #777777;
}

.blog-banner-scroll {
    display: flex;
    gap: 12px;
    overflow-x: auto;
    padding-bottom: 4px;
    scroll-snap-type: x mandatory;
}

.blog-banner-scroll::-webkit-scrollbar {
    height: 8px;
}

.blog-banner-scroll::-webkit-scrollbar-thumb {
    background: #e1e1e1;
    border-radius: 10px;
}

.blog-banner-card {
    min-width: 340px;
    max-width: 420px;
    text-align: left;
    border: 1px solid #e5e5e5;
    background: #ffffff;
    border-radius: 8px;
    padding: 12px 14px;
    cursor: pointer;
    scroll-snap-align: start;
}

.blog-banner-card:hover {
    border-color: #c4956a;
}

.blog-card-title {
    margin: 0;
    font-size: 0.88rem;
    color: #1a1a1a;
    line-height: 1.35;
}

.blog-card-tag {
    display: inline-block;
    margin: 8px 0 0 0;
    padding: 2px 8px;
    border-radius: 999px;
    border: 1px solid #e7d7c8;
    background: #faf6f1;
    color: #9c6f47;
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.4px;
    text-transform: uppercase;
}

.blog-card-subtitle {
    margin: 8px 0 0 0;
    font-size: 0.77rem;
    color: #555555;
    line-height: 1.45;
}

.blog-card-meta {
    margin: 8px 0 0 0;
    font-size: 0.7rem;
    color: #999999;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

.blog-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.45);
    z-index: 2250;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 18px;
}

.blog-preview-modal,
.blog-reader-modal {
    background: #ffffff;
    border-radius: 10px;
    width: 100%;
    border: 1px solid #e5e5e5;
    box-shadow: 0 20px 55px rgba(0, 0, 0, 0.25);
}

.blog-preview-modal {
    max-width: 820px;
    max-height: 88vh;
    display: flex;
    flex-direction: column;
}

.blog-preview-header {
    padding: 16px 20px 12px;
    border-bottom: 1px solid #f0f0f0;
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 12px;
}

.blog-preview-title {
    margin: 0;
    font-size: 1.1rem;
    color: #1a1a1a;
}

.blog-preview-subtitle {
    margin: 8px 0 0 0;
    font-size: 0.82rem;
    color: #555555;
}

.blog-preview-tag,
.blog-reader-tag {
    display: inline-block;
    margin: 8px 0 0 0;
    padding: 2px 9px;
    border-radius: 999px;
    border: 1px solid #e7d7c8;
    background: #faf6f1;
    color: #9c6f47;
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.4px;
    text-transform: uppercase;
}

.blog-preview-tag:empty,
.blog-reader-tag:empty {
    display: none;
}

.blog-preview-meta {
    margin: 8px 0 0 0;
    font-size: 0.72rem;
    color: #999999;
    letter-spacing: 0.6px;
    text-transform: uppercase;
    font-weight: 600;
}

.blog-meta-date,
.blog-meta-author {
    display: inline;
}

.blog-meta-author::before {
    content: "  \00b7  ";
}

.blog-modal-close {
    background: none;
    border: none;
    color: #999999;
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    padding: 0 4px;
}

.blog-modal-close:hover {
    color: #1a1a1a;
}

.blog-preview-actions {
    padding: 10px 20px 0;
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.blog-link-btn {
    font-size: 0.72rem;
    padding: 6px 12px;
}

.blog-preview-markdown {
    padding: 14px 20px 20px;
    overflow-y: auto;
    line-height: 1.7;
    color: #444444;
}

.blog-reader-modal {
    max-width: 1080px;
    max-height: 92vh;
    display: flex;
    flex-direction: column;
}

.blog-reader-topbar {
    padding: 14px 18px;
    border-bottom: 1px solid #f0f0f0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.blog-reader-topbar-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.blog-reader-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 4px;
    width: 32px;
    height: 32px;
    padding: 4px;
    border-radius: 6px;
    border: 1px solid #e5e5e5;
    background: #ffffff;
    cursor: pointer;
}

.blog-reader-heading {
    margin: 0;
    font-size: 1rem;
    color: #1a1a1a;
}

.blog-reader-body {
    display: grid;
    grid-template-columns: minmax(360px, 420px) 1fr;
    min-height: 0;
    flex: 1;
}

.blog-reader-sidebar {
    border-right: 1px solid #f0f0f0;
    padding: 14px;
    overflow-y: auto;
}

.blog-reader-sidebar-title {
    margin: 0 0 10px 0;
    font-size: 0.75rem;
    color: #999999;
    text-transform: uppercase;
    letter-spacing: 0.6px;
}

.blog-reader-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.blog-reader-item {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 5px;
    text-align: left;
    border: 1px solid #ececec;
    background: #ffffff;
    border-radius: 6px;
    padding: 9px 10px;
    color: #333333;
    cursor: pointer;
}

.blog-reader-item-title {
    display: block;
    font-size: 0.8rem;
    line-height: 1.35;
    white-space: nowrap;
}

.blog-reader-item-tag {
    display: inline-block;
    align-self: flex-start;
    padding: 1px 7px;
    border-radius: 999px;
    border: 1px solid #e7d7c8;
    background: #faf6f1;
    color: #9c6f47;
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.35px;
    text-transform: uppercase;
}

.blog-reader-item-date {
    font-size: 0.66rem;
    color: #999999;
    text-transform: uppercase;
    letter-spacing: 0.45px;
    font-weight: 600;
}

.blog-reader-item:hover {
    border-color: #c4956a;
}

.blog-reader-item.is-active {
    border-color: #c4956a;
    background: rgba(196, 149, 106, 0.07);
    color: #1a1a1a;
}

.blog-reader-item.is-active .blog-reader-item-tag {
    border-color: rgba(156, 111, 71, 0.45);
    background: rgba(196, 149, 106, 0.12);
}

.blog-reader-content {
    padding: 18px 20px;
    overflow-y: auto;
}

.blog-reader-title {
    margin: 0;
    color: #1a1a1a;
    font-size: 1.2rem;
}

.blog-reader-subtitle {
    margin: 8px 0 0 0;
    font-size: 0.86rem;
    color: #555555;
    line-height: 1.5;
}

.blog-reader-meta {
    margin: 8px 0 0 0;
    font-size: 0.72rem;
    color: #999999;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    font-weight: 600;
}

.blog-reader-links {
    margin-top: 10px;
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.blog-reader-markdown {
    margin-top: 12px;
    color: #444444;
    line-height: 1.7;
}

.blog-preview-markdown h1,
.blog-preview-markdown h2,
.blog-preview-markdown h3,
.blog-preview-markdown h4,
.blog-reader-markdown h1,
.blog-reader-markdown h2,
.blog-reader-markdown h3,
.blog-reader-markdown h4 {
    color: #1a1a1a;
    margin: 18px 0 8px 0;
}

.blog-preview-markdown p,
.blog-reader-markdown p {
    margin: 0 0 10px 0;
    font-size: 0.86rem;
}

.blog-preview-markdown ul,
.blog-preview-markdown ol,
.blog-reader-markdown ul,
.blog-reader-markdown ol {
    margin: 0 0 10px 18px;
}

.blog-preview-markdown table,
.blog-reader-markdown table {
    width: 100%;
    border-collapse: collapse;
    margin: 12px 0 14px;
}

.blog-preview-markdown th,
.blog-reader-markdown th {
    text-align: left;
    font-size: 0.72rem;
    color: #777777;
    font-weight: 600;
    padding: 0 8px 6px 0;
    border: none;
}

.blog-preview-markdown th:last-child,
.blog-reader-markdown th:last-child {
    padding-right: 0;
}

.blog-preview-markdown td,
.blog-reader-markdown td {
    vertical-align: top;
    width: 50%;
    padding: 0 8px 0 0;
    border: none;
}

.blog-preview-markdown td:last-child,
.blog-reader-markdown td:last-child {
    padding-right: 0;
}

.blog-preview-markdown blockquote,
.blog-reader-markdown blockquote {
    margin: 10px 0;
    padding: 8px 12px;
    border-left: 3px solid #c4956a;
    background: #faf7f3;
    color: #555555;
}

.blog-preview-markdown code,
.blog-reader-markdown code {
    font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 0.78rem;
    background: #f7f7f7;
    border: 1px solid #ececec;
    border-radius: 4px;
    padding: 1px 4px;
}

.blog-preview-markdown img,
.blog-reader-markdown img {
    display: block;
    max-width: 100%;
    height: auto;
    border: 1px solid #ececec;
    border-radius: 8px;
    cursor: zoom-in;
}

.blog-image-row {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin: 12px 0 14px;
}

.blog-image-card {
    margin: 0;
}

.blog-image-lightbox {
    position: fixed;
    inset: 0;
    z-index: 2400;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
    background: rgba(0, 0, 0, 0.85);
}

.blog-image-lightbox.is-open {
    display: flex;
}

.blog-image-lightbox-img {
    max-width: min(1200px, 94vw);
    max-height: 90vh;
    width: auto;
    height: auto;
    border-radius: 8px;
    box-shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
}

.blog-image-lightbox-close {
    position: absolute;
    top: 14px;
    right: 18px;
    border: none;
    background: transparent;
    color: #ffffff;
    font-size: 2rem;
    line-height: 1;
    cursor: pointer;
}

/* --- Footer --- */
.footer {
    width: 100%;
    margin: 0;
    padding: 14px 24px;
    background: #1a1a1a;
    display: flex;
    justify-content: flex-start;
    align-items: center;
    position: relative;
    min-height: 66px;
}

.footer-brand {
    display: flex;
    align-items: center;
    text-decoration: none;
    z-index: 1;
}

.footer-logo {
    height: 22px;
    width: auto;
    filter: brightness(0) invert(1);
}

.footer-center-text {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    margin: 0;
    color: #ffffff;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.2px;
    text-align: center;
    white-space: nowrap;
}

/* --- Responsive --- */
@media (max-width: 1100px) {
    .nav-bar,
    .above-fold,
    .steps-section,
    .components-section,
    .methodology-section,
    .blog-banner-section {
        padding-left: 24px;
        padding-right: 24px;
    }

    .section-divider {
        padding-left: 24px;
        padding-right: 24px;
    }
}

/* --- Hamburger button (desktop: hidden) --- */
.nav-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
    width: 34px;
    height: 34px;
    border-radius: 6px;
    flex-shrink: 0;
}

.hamburger-line {
    display: block;
    width: 20px;
    height: 2px;
    background: #1a1a1a;
    border-radius: 2px;
    transition: all 0.2s ease;
    pointer-events: none;
}

@media (max-width: 900px) {
    .nav-bar {
        height: 56px;
        min-height: 56px;
        padding: 0 16px;
        flex-wrap: nowrap;
        position: relative;
    }

    .nav-hamburger {
        display: flex;
    }

    .nav-actions {
        margin-left: auto;
        gap: 8px;
    }

    .nav-actions .btn-pill {
        padding: 6px 12px;
        font-size: 0.72rem;
    }

    /* Nav links: hidden by default on mobile, drops down when open */
    .nav-links {
        display: none;
        position: absolute;
        top: 56px;
        left: 0;
        right: 0;
        flex-direction: column;
        background: #ffffff;
        border-bottom: 1px solid #e5e5e5;
        box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
        z-index: 999;
        padding: 4px 0 8px;
        gap: 0;
    }

    .nav-links.is-open {
        display: flex;
    }

    .nav-links a,
    .nav-links .nav-link {
        padding: 12px 20px;
        border-bottom: 1px solid #f5f5f5;
        font-size: 0.9rem;
        white-space: normal;
        width: 100%;
        text-align: center;
    }

    /* Blog pill button becomes a plain list item on mobile */
    .nav-links .blog-nav-btn {
        display: flex;
        justify-content: center;
        width: 100%;
        border-radius: 0;
        border: none;
        border-bottom: 1px solid #f5f5f5;
        padding: 12px 20px;
        text-align: center;
        font-size: 0.9rem;
        font-weight: 500;
        background: transparent;
        color: #1a1a1a;
        letter-spacing: 0.35px;
    }

    .nav-links > *:last-child {
        border-bottom: none;
    }

    .above-fold,
    .steps-section,
    .components-section,
    .methodology-section,
    .blog-banner-section {
        padding-left: 16px;
        padding-right: 16px;
    }

    .section-divider {
        padding-left: 16px;
        padding-right: 16px;
    }

    .fold-header {
        flex-direction: column;
        gap: 14px;
        margin-bottom: 16px;
    }

    /* Center hero title block text on mobile */
    .fold-title-block {
        text-align: center;
    }

    .fold-actions {
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 10px;
    }

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

    .fold-subtitle {
        max-width: 100%;
        margin-left: auto;
        margin-right: auto;
    }

    /* Center methodology doc buttons on mobile */
    .method-doc-actions {
        justify-content: center;
    }

    .fold-stats {
        width: 100%;
        display: grid;
        grid-template-columns: 1fr 1fr;
        gap: 4px 14px;
        align-items: stretch;
        border-top: 1px solid #e5e5e5;
        padding-top: 14px;
        margin-top: 4px;
    }

    .fold-stats .data-badge-live,
    .fold-stats .data-badge-sample {
        grid-column: 1 / -1;
        justify-self: center;
        margin-bottom: 4px;
    }

    .stat-row {
        justify-content: space-between;
        border-top: 1px solid #f2f2f2;
        padding-top: 5px;
        padding-bottom: 2px;
    }

    .fold-stats .stat-row:last-child {
        grid-column: 1 / -1;
        justify-content: center;
        gap: 10px;
    }

    .stat-label {
        font-size: 0.62rem;
    }

    .stat-value {
        font-size: 0.78rem;
    }

    #chart-cumulative-gap {
        height: 360px !important;
    }

    #chart-levels,
    #chart-first-diffs,
    #chart-change-gap,
    #drilldown-chart {
        height: 320px !important;
    }

    .tables-grid,
    .method-grid {
        grid-template-columns: 1fr;
    }

    /* Component tables: fit without horizontal scroll on mobile */
    .component-table {
        min-width: 0;
        width: 100%;
    }

    .component-table td,
    .component-table th {
        font-size: 0.7rem;
        padding: 5px 5px;
    }

    .component-table .sparkline-cell {
        width: 58px;
        min-width: 50px;
    }

    .component-table .zscore-cell {
        width: 52px;
        min-width: 46px;
    }

    .footer {
        padding: 12px 16px;
        min-height: 60px;
    }

    .footer-center-text {
        font-size: 0.74rem;
    }
}

@media (max-width: 640px) {
    .nav-bar {
        padding: 0 12px;
    }

    .nav-actions .btn-pill {
        padding: 5px 10px;
        font-size: 0.68rem;
    }

    .fold-title {
        font-size: 1.38rem;
    }

    .fold-subtitle {
        font-size: 0.82rem;
    }

    .eyebrow-mobile-break {
        display: block;
    }

    .eyebrow-dash {
        display: none;
    }

    .fold-actions .btn-pill {
        padding: 6px 10px;
        font-size: 0.7rem;
    }

    /* Keep fold-stats 2x2 at small screens — remove 1-column collapse */
    .fold-stats {
        gap: 2px 10px;
        padding-top: 10px;
    }

    #chart-cumulative-gap {
        height: 280px !important;
    }

    #chart-levels,
    #chart-first-diffs,
    #chart-change-gap,
    #drilldown-chart {
        height: 280px !important;
    }

    .blog-banner-card {
        min-width: 240px;
    }

    .blog-modal-overlay {
        padding: 8px;
    }

    .blog-preview-modal,
    .blog-reader-modal {
        max-height: 94vh;
    }

    .blog-preview-header {
        position: relative;
        display: block;
        text-align: center;
        padding-left: 18px;
        padding-right: 44px;
    }

    .blog-preview-header .blog-modal-close {
        position: absolute;
        top: 12px;
        right: 12px;
    }

    .blog-preview-title,
    .blog-preview-tag,
    .blog-preview-subtitle,
    .blog-preview-meta,
    .blog-reader-heading,
    .blog-reader-title,
    .blog-reader-tag,
    .blog-reader-subtitle,
    .blog-reader-meta {
        text-align: center;
    }

    .blog-reader-links,
    .blog-preview-actions {
        justify-content: center;
    }

    .blog-meta-date,
    .blog-meta-author {
        display: block;
    }

    .blog-meta-author::before {
        content: "";
    }

    .blog-preview-title,
    .blog-reader-title {
        /* Balance wraps on narrow screens so lines break more evenly. */
        text-wrap: balance;
        max-width: 24ch;
        margin-left: auto;
        margin-right: auto;
    }

    .blog-preview-subtitle,
    .blog-reader-subtitle {
        text-wrap: balance;
        max-width: 30ch;
        margin-left: auto;
        margin-right: auto;
    }

    .blog-preview-tag,
    .blog-reader-tag {
        display: table;
        margin-left: auto;
        margin-right: auto;
    }

    .blog-reader-body {
        grid-template-columns: 1fr;
    }

    .blog-reader-sidebar {
        display: none;
        border-right: none;
        border-bottom: 1px solid #f0f0f0;
        max-height: 160px;
    }

    .blog-reader-sidebar.is-open {
        display: block;
    }

    .blog-reader-menu-toggle {
        display: flex;
    }

    .blog-reader-item {
        align-items: flex-start;
        justify-content: flex-start;
        flex-direction: column;
        gap: 5px;
    }

    .blog-reader-item-title {
        white-space: normal;
    }

    .blog-reader-item-tag {
        align-self: flex-start;
        margin-left: 0;
    }

    .blog-reader-item-date {
        width: auto;
        text-align: left;
    }

    .blog-image-row {
        grid-template-columns: 1fr;
    }

    .blog-preview-markdown table,
    .blog-reader-markdown table {
        display: grid;
        grid-template-columns: 1fr;
    }

    .blog-preview-markdown thead,
    .blog-preview-markdown tbody,
    .blog-preview-markdown tr,
    .blog-reader-markdown thead,
    .blog-reader-markdown tbody,
    .blog-reader-markdown tr {
        display: contents;
    }

    .blog-preview-markdown th,
    .blog-reader-markdown th {
        display: block;
        width: 100%;
        padding-right: 0;
        text-align: center;
    }

    .blog-preview-markdown td,
    .blog-reader-markdown td {
        display: block;
        width: 100%;
        padding-right: 0;
        margin-bottom: 10px;
        text-align: center;
    }

    .blog-preview-markdown th:nth-of-type(1),
    .blog-reader-markdown th:nth-of-type(1) {
        grid-row: 1;
    }

    .blog-preview-markdown td:nth-of-type(1),
    .blog-reader-markdown td:nth-of-type(1) {
        grid-row: 2;
    }

    .blog-preview-markdown th:nth-of-type(2),
    .blog-reader-markdown th:nth-of-type(2) {
        grid-row: 3;
    }

    .blog-preview-markdown td:nth-of-type(2),
    .blog-reader-markdown td:nth-of-type(2) {
        grid-row: 4;
    }

    .blog-preview-markdown img,
    .blog-reader-markdown img {
        margin-left: auto;
        margin-right: auto;
    }

    .blog-preview-markdown,
    .blog-reader-markdown {
        text-align: left;
    }

    .step-card,
    .flagship-card,
    .table-card,
    .drilldown-card {
        padding: 14px;
        border-radius: 6px;
    }
}

@media (max-width: 480px) {
    .fold-title {
        font-size: 1.25rem;
    }

    .chart-description {
        font-size: 0.72rem;
    }

    .blog-banner-title {
        font-size: 0.8rem;
    }

    .blog-card-title {
        font-size: 0.82rem;
    }

    .footer {
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 8px;
        min-height: 78px;
        padding: 10px 12px;
    }

    .footer-center-text {
        position: static;
        transform: none;
        font-size: 0.72rem;
        white-space: normal;
        text-align: center;
    }
}

/* --- Plotly modebar light style --- */
.modebar {
    background-color: transparent !important;
}

.modebar-btn path {
    fill: #cccccc !important;
}

.modebar-btn:hover path {
    fill: #c4956a !important;
}

/* --- Document Viewer Modals --- */
.doc-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.45);
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.doc-modal {
    background: #ffffff;
    border-radius: 12px;
    width: 100%;
    max-width: 780px;
    max-height: 88vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
}

.doc-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding: 20px 24px 16px;
    border-bottom: 1px solid #e5e5e5;
    flex-shrink: 0;
}

.doc-modal-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: #1a1a1a;
    margin: 0 0 2px 0;
}

.doc-modal-author {
    font-size: 0.76rem;
    color: #999999;
    margin: 0;
    font-weight: 500;
}

.doc-modal-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.doc-modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: #999999;
    cursor: pointer;
    padding: 0 4px;
    line-height: 1;
    transition: color 0.15s;
}

.doc-modal-close:hover {
    color: #1a1a1a;
}

.doc-modal-body {
    padding: 24px;
    overflow-y: auto;
    flex: 1;
    line-height: 1.7;
}

.doc-modal-body h2 {
    font-size: 1.05rem;
    font-weight: 700;
    color: #1a1a1a;
    margin: 28px 0 8px 0;
    letter-spacing: -0.2px;
}

.doc-modal-body h2:first-child {
    margin-top: 0;
}

.doc-modal-body h2.doc-section-title {
    padding-top: 16px;
    border-top: 1px solid #f0f0f0;
}

.doc-modal-body h2.doc-section-title:first-child {
    border-top: none;
    padding-top: 0;
}

.doc-modal-body h3 {
    font-size: 0.88rem;
    font-weight: 600;
    color: #333333;
    margin: 20px 0 6px 0;
}

.doc-modal-body h4 {
    font-size: 0.82rem;
    font-weight: 600;
    color: #555555;
    margin: 14px 0 4px 0;
}

.doc-modal-body p {
    font-size: 0.85rem;
    color: #444444;
    margin: 0 0 12px 0;
    line-height: 1.7;
}

.doc-modal-body .doc-intro {
    font-style: italic;
    color: #777777;
    border-left: 3px solid #c4956a;
    padding-left: 14px;
    margin-bottom: 20px;
}

@media (max-width: 640px) {
    .doc-modal-overlay {
        padding: 8px;
    }

    .doc-modal {
        max-height: 94vh;
        border-radius: 8px;
    }

    .doc-modal-header {
        padding: 14px 16px 12px;
    }

    .doc-modal-body {
        padding: 16px;
    }
}

/* --- Lead Capture Modal --- */
.lead-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.5);
    z-index: 2300;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.lead-modal {
    width: 100%;
    max-width: 560px;
    background: #ffffff;
    border-radius: 10px;
    border: 1px solid #e5e5e5;
    box-shadow: 0 22px 60px rgba(0, 0, 0, 0.22);
}

.lead-modal-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 16px;
    padding: 18px 20px 12px;
    border-bottom: 1px solid #f0f0f0;
}

.lead-modal-title {
    margin: 0 0 2px 0;
    font-size: 1rem;
    font-weight: 700;
    color: #1a1a1a;
}

.lead-modal-subtitle {
    margin: 0;
    font-size: 0.78rem;
    color: #777777;
}

.lead-modal-close {
    background: none;
    border: none;
    font-size: 1.45rem;
    line-height: 1;
    color: #999999;
    cursor: pointer;
    padding: 0 4px;
}

.lead-modal-close:hover {
    color: #1a1a1a;
}

.lead-modal-body {
    padding: 18px 20px 20px;
}

.lead-modal-context {
    margin: 0 0 12px 0;
    color: #555555;
    font-size: 0.82rem;
}

.lead-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px 12px;
}

.lead-field {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.lead-field label {
    color: #444444;
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 0.3px;
    text-transform: uppercase;
}

.lead-field input {
    width: 100%;
    border: 1px solid #dcdcdc;
    border-radius: 7px;
    padding: 9px 10px;
    font-size: 0.86rem;
    color: #1a1a1a;
    outline: none;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.lead-field input:focus {
    border-color: #c4956a;
    box-shadow: 0 0 0 2px rgba(196, 149, 106, 0.14);
}

.lead-consent {
    margin: 12px 0 0 0;
    color: #777777;
    font-size: 0.75rem;
}

.lead-form-message {
    min-height: 18px;
    margin: 10px 0 0 0;
    font-size: 0.78rem;
    color: #b42318;
}

.lead-form-message.is-success {
    color: #2e7d32;
}

.lead-modal-actions {
    margin-top: 10px;
    display: flex;
    justify-content: flex-end;
}

@media (max-width: 640px) {
    .lead-modal-overlay {
        padding: 10px;
    }

    .lead-form-grid {
        grid-template-columns: 1fr;
    }
}

/* Smooth scroll for anchor links */
html {
    scroll-behavior: smooth;
}

/* Section anchor offset for sticky nav */
.scroll-target {
    scroll-margin-top: 64px;
}