@import url("https://fonts.googleapis.com/css2?family=Libre+Baskerville:wght@400;700&family=Source+Sans+3:wght@400;500;600;700;800&display=swap");

:root {
    --hr1-ink: #181616;
    --hr1-blue-900: #132935;
    --hr1-blue-800: #1b3747;
    --hr1-teal: #146e97;
    --hr1-blue: #008ccc;
    --hr1-paper: #f6f2f1;
    --hr1-surface: #fefbfa;
    --hr1-surface-strong: #ffffff;
    --hr1-taupe: #b8a49a;
    --hr1-taupe-light: #ece0da;
    --hr1-muted: #4b433f;
    --hr1-muted-light: #887871;
    --hr1-border: rgba(75, 67, 63, 0.2);
    --hr1-border-strong: rgba(75, 67, 63, 0.36);
    --hr1-red: #9f2f24;
    --hr1-red-dark: #7d251d;
    --hr1-green: #1f7a4d;
    --hr1-amber: #a45c24;
    --hr1-shadow-sm: 0 1px 2px rgba(19, 41, 53, 0.08);
    --hr1-shadow-md: 0 12px 30px rgba(19, 41, 53, 0.12);
    --hr1-shadow-lg: 0 24px 70px rgba(19, 41, 53, 0.24);
    --hr1-radius-sm: 4px;
    --hr1-radius: 6px;
    --hr1-radius-lg: 8px;
    --hr1-font-ui: "Source Sans 3", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --hr1-font-serif: "Libre Baskerville", Georgia, "Times New Roman", serif;
}

* {
    text-rendering: geometricPrecision;
}

html {
    background: var(--hr1-paper);
}

body {
    font-family: var(--hr1-font-ui) !important;
    color: var(--hr1-ink) !important;
    background:
        linear-gradient(180deg, rgba(19, 41, 53, 0.045) 0, rgba(246, 242, 241, 0) 18rem),
        var(--hr1-paper) !important;
    font-size: 1rem;
    letter-spacing: 0;
}

body::before {
    content: "";
    position: fixed;
    inset: 0 0 auto;
    height: 4px;
    background: linear-gradient(90deg, var(--hr1-red), var(--hr1-taupe), var(--hr1-teal));
    z-index: 4000;
    pointer-events: none;
}

a {
    color: var(--hr1-teal);
    text-decoration-color: rgba(20, 110, 151, 0.36);
    text-underline-offset: 0.18em;
}

a:hover {
    color: var(--hr1-blue-900);
    text-decoration-color: currentColor;
}

button,
input,
select {
    font: inherit;
}

button,
a,
input,
select,
tr,
.trace-card {
    transition:
        background-color 160ms ease,
        border-color 160ms ease,
        color 160ms ease,
        box-shadow 160ms ease,
        transform 160ms ease;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible {
    outline: 3px solid rgba(0, 140, 204, 0.34) !important;
    outline-offset: 2px;
}

/* Navigation */
.top-nav {
    min-height: 64px !important;
    height: auto !important;
    padding: 0.65rem clamp(1rem, 3vw, 2.5rem) !important;
    background: var(--hr1-blue-900) !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 10px 26px rgba(19, 41, 53, 0.2);
    gap: 1rem;
    flex-wrap: wrap;
}

.nav-brand {
    color: var(--hr1-surface) !important;
    font-family: var(--hr1-font-serif);
    font-size: clamp(1rem, 2vw, 1.25rem) !important;
    font-weight: 700 !important;
    letter-spacing: 0 !important;
    line-height: 1.2;
}

.nav-brand::before {
    content: "";
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 0.85rem;
    height: 1.65rem;
    margin-right: 0.7rem;
    border-left: 3px solid var(--hr1-red);
    border-right: 1px solid rgba(255, 255, 255, 0.38);
    vertical-align: middle;
}

.nav-links {
    gap: 0.25rem !important;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.nav-links a {
    border-radius: var(--hr1-radius-sm) !important;
    color: rgba(254, 251, 250, 0.78) !important;
    font-size: 0.76rem !important;
    font-weight: 800 !important;
    letter-spacing: 0.08em;
    line-height: 1;
    padding: 0.65rem 0.78rem !important;
    text-decoration: none;
    text-transform: uppercase;
}

.nav-links a:hover {
    background: rgba(255, 255, 255, 0.1) !important;
    color: var(--hr1-surface) !important;
}

.nav-links a.active {
    background: var(--hr1-surface) !important;
    color: var(--hr1-blue-900) !important;
    box-shadow: inset 0 -3px 0 var(--hr1-red);
}

/* Page and editorial headers */
.header,
.page-header,
.page-card,
.about-card {
    background: var(--hr1-surface) !important;
    border: 1px solid var(--hr1-border) !important;
    border-radius: var(--hr1-radius-lg) !important;
    box-shadow: var(--hr1-shadow-sm);
}

.header {
    padding: clamp(1.75rem, 4vw, 3rem) 0 !important;
    border-inline: 0 !important;
    border-top: 0 !important;
    border-radius: 0 !important;
    border-bottom-color: var(--hr1-border-strong) !important;
    box-shadow: none;
}

.header-content,
.controls,
.traces-container {
    max-width: 1440px !important;
}

.page-container,
.about-container {
    margin: clamp(1.5rem, 4vw, 3rem) auto !important;
}

.page-container {
    max-width: 1120px !important;
}

.about-container,
.page-container:has(.page-card) {
    max-width: 860px !important;
}

.page-header,
.page-card,
.about-card {
    padding: clamp(1.5rem, 4vw, 3rem) !important;
}

.header h1,
.page-header h1,
.page-card h1,
.about-card h1 {
    color: var(--hr1-ink) !important;
    font-family: var(--hr1-font-serif);
    font-size: clamp(1.65rem, 3vw, 2.65rem) !important;
    font-weight: 700 !important;
    letter-spacing: 0 !important;
    line-height: 1.15;
}

.page-header h1,
.page-card h1,
.about-card h1 {
    position: relative;
    margin-bottom: 1rem !important;
    padding-bottom: 0.75rem;
}

.page-header h1::after,
.page-card h1::after,
.about-card h1::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 4.8rem;
    height: 3px;
    background: var(--hr1-red);
}

.page-header p,
.about-card .subtitle,
.about-card p,
.narrative-section p,
.narrative-section li {
    color: var(--hr1-muted) !important;
    font-size: 1rem !important;
    line-height: 1.72 !important;
}

.about-card .subtitle {
    border-bottom-color: var(--hr1-border) !important;
    margin-bottom: 2rem !important;
}

.about-card h2,
.narrative-section .section-heading,
.narrative-section .doc-title {
    color: var(--hr1-blue-900) !important;
    font-family: var(--hr1-font-serif);
    font-weight: 700 !important;
    letter-spacing: 0 !important;
}

.about-card h2 {
    border-top: 1px solid var(--hr1-border);
    font-size: 1.15rem !important;
    margin-top: 2rem !important;
    padding-top: 1.35rem;
}

.about-card h2:first-of-type {
    border-top: 0;
    padding-top: 0;
}

.narrative-section .doc-title {
    font-size: 1.18rem !important;
}

.narrative-section .section-heading {
    font-size: 1.08rem !important;
    margin-top: 1.85rem !important;
}

.narrative-section a {
    color: var(--hr1-teal) !important;
    font-weight: 600;
}

/* Controls */
.controls,
.toolbar {
    background: rgba(254, 251, 250, 0.84) !important;
    border: 1px solid var(--hr1-border) !important;
    border-radius: var(--hr1-radius-lg);
    box-shadow: var(--hr1-shadow-sm);
}

.controls {
    margin-top: 1rem !important;
    margin-bottom: 0.75rem !important;
    padding: 1rem 1.25rem !important;
}

.toolbar {
    padding: 1rem !important;
}

.filter-btn,
.earlier-bill-btn,
.cta-btn {
    border-radius: var(--hr1-radius-sm) !important;
    font-size: 0.86rem !important;
    font-weight: 800 !important;
    letter-spacing: 0.045em;
    text-transform: uppercase;
}

.filter-btn {
    background: var(--hr1-surface-strong) !important;
    border: 1px solid var(--hr1-border-strong) !important;
    color: var(--hr1-blue-900) !important;
    padding: 0.52rem 0.82rem !important;
}

.filter-btn:hover {
    background: var(--hr1-paper) !important;
    border-color: var(--hr1-taupe) !important;
    box-shadow: var(--hr1-shadow-sm);
}

.filter-btn.active {
    background: var(--hr1-blue-900) !important;
    border-color: var(--hr1-blue-900) !important;
    color: var(--hr1-surface) !important;
}

.search-box {
    min-width: min(100%, 17rem);
}

.search-box i {
    color: var(--hr1-muted-light) !important;
}

.search-box input,
.version-select {
    background: var(--hr1-surface-strong) !important;
    border: 1px solid var(--hr1-border-strong) !important;
    border-radius: var(--hr1-radius-sm) !important;
    color: var(--hr1-ink) !important;
    min-height: 2.45rem;
}

.search-box input::placeholder {
    color: rgba(75, 67, 63, 0.64);
}

.search-box input:focus,
.version-select:focus {
    border-color: var(--hr1-blue) !important;
    box-shadow: 0 0 0 3px rgba(0, 140, 204, 0.14);
}

.stats,
.count-badge {
    color: var(--hr1-muted) !important;
    font-size: 0.86rem !important;
    font-weight: 700 !important;
}

.stats span,
#resultCount {
    color: var(--hr1-red);
    font-variant-numeric: tabular-nums;
    font-weight: 800;
}

/* Badges and stage markers */
.key-badge,
.version-badge,
.stage-badge,
.source-indicator,
.enrolled-indicator,
.earlier-bill-tag {
    border-radius: var(--hr1-radius-sm) !important;
    box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.18);
    font-weight: 800 !important;
    letter-spacing: 0.045em;
}

.key-rh,
.badge-rh,
.source-rh,
.stage-rh-ph {
    background: var(--hr1-blue-800) !important;
    color: var(--hr1-surface) !important;
}

.key-pcs,
.badge-ph,
.source-pcs,
.stage-ph-amendment {
    background: var(--hr1-teal) !important;
    color: var(--hr1-surface) !important;
}

.key-samdt,
.badge-samdt,
.source-samdt,
.earlier-bill-tag {
    background: var(--hr1-amber) !important;
    color: var(--hr1-surface) !important;
}

.key-enrolled,
.badge-enrolled,
.enrolled-indicator {
    background: var(--hr1-red) !important;
    color: var(--hr1-surface) !important;
}

.key-label,
.key-separator,
.trace-preview,
.version-desc,
.methodology-list li {
    color: var(--hr1-muted) !important;
}

.version-key {
    gap: 0.65rem !important;
}

.key-item {
    background: rgba(255, 255, 255, 0.58);
    border: 1px solid var(--hr1-border);
    border-radius: var(--hr1-radius-sm);
    padding: 0.35rem 0.48rem;
}

/* Homepage trace cards */
.traces-container {
    gap: 1rem !important;
    padding: 1rem 2rem 2.5rem !important;
}

.trace-card {
    background: var(--hr1-surface) !important;
    border: 1px solid var(--hr1-border) !important;
    border-radius: var(--hr1-radius-lg) !important;
    box-shadow: var(--hr1-shadow-sm);
    overflow: hidden;
    padding: 1.25rem !important;
}

.trace-card:hover {
    background: var(--hr1-surface-strong) !important;
    border-color: var(--hr1-taupe) !important;
    box-shadow: var(--hr1-shadow-md);
    transform: translateY(-2px);
}

.trace-title {
    color: var(--hr1-blue-900) !important;
    font-family: var(--hr1-font-serif);
    font-size: 1rem !important;
    line-height: 1.45;
}

.source-flow {
    background: rgba(246, 242, 241, 0.7);
    border: 1px solid rgba(184, 164, 154, 0.36);
    border-radius: var(--hr1-radius);
    margin-top: 0.85rem;
    padding: 0.9rem;
}

.branch-container {
    gap: 0.75rem !important;
}

.arrow,
.compare-arrow {
    color: var(--hr1-muted-light) !important;
}

.similarity-scores {
    background: var(--hr1-surface-strong) !important;
    border: 1px solid rgba(184, 164, 154, 0.48);
    border-radius: 999px !important;
    color: var(--hr1-blue-900) !important;
    font-variant-numeric: tabular-nums;
}

/* Tables */
.table-card {
    background: var(--hr1-surface) !important;
    border: 1px solid var(--hr1-border) !important;
    border-radius: var(--hr1-radius-lg) !important;
    box-shadow: var(--hr1-shadow-sm);
}

.data-table {
    border-collapse: separate !important;
    border-spacing: 0;
}

.data-table th {
    background: var(--hr1-blue-900) !important;
    border-bottom: 0 !important;
    color: var(--hr1-surface) !important;
    font-size: 0.78rem !important;
    font-weight: 800 !important;
    letter-spacing: 0.07em;
    text-transform: uppercase;
}

.data-table td {
    border-bottom: 1px solid rgba(75, 67, 63, 0.12) !important;
    color: var(--hr1-muted) !important;
}

.data-table tbody tr:nth-child(even) {
    background: rgba(246, 242, 241, 0.46);
}

.data-table tbody tr:hover {
    background: rgba(20, 110, 151, 0.1) !important;
}

.section-num {
    color: var(--hr1-blue-900) !important;
    font-weight: 800 !important;
}

.text-indicator.has-text {
    color: var(--hr1-green) !important;
    font-weight: 700;
}

.text-indicator.no-text {
    color: var(--hr1-muted-light) !important;
}

.loading {
    color: var(--hr1-muted) !important;
}

.error {
    background: #fff4f1 !important;
    border-color: rgba(159, 47, 36, 0.35) !important;
    color: var(--hr1-red-dark) !important;
}

/* Modal and comparison surfaces */
.modal {
    background: rgba(19, 41, 53, 0.72) !important;
    backdrop-filter: blur(3px);
    padding: clamp(0.5rem, 2vw, 1.25rem);
}

.modal-content {
    background: var(--hr1-surface) !important;
    border: 1px solid rgba(255, 255, 255, 0.44);
    border-radius: var(--hr1-radius-lg) !important;
    box-shadow: var(--hr1-shadow-lg) !important;
    margin: 0 auto !important;
    max-height: calc(100vh - clamp(1rem, 4vw, 2.5rem));
}

.modal-header {
    background: var(--hr1-blue-900);
    border-bottom: 3px solid var(--hr1-red) !important;
    color: var(--hr1-surface);
    padding: 1.1rem 1.35rem !important;
}

.modal-title {
    color: var(--hr1-surface) !important;
    font-family: var(--hr1-font-serif);
    font-size: clamp(1.05rem, 2vw, 1.35rem) !important;
    letter-spacing: 0 !important;
}

.modal-subtitle {
    color: rgba(254, 251, 250, 0.72) !important;
}

.close-btn {
    align-items: center;
    background: rgba(255, 255, 255, 0.1) !important;
    border: 1px solid rgba(255, 255, 255, 0.24) !important;
    border-radius: 999px;
    color: var(--hr1-surface) !important;
    display: inline-flex;
    font-size: 1.4rem !important;
    height: 2.2rem;
    justify-content: center;
    line-height: 1 !important;
    min-width: 2.2rem;
}

.close-btn:hover {
    background: var(--hr1-surface) !important;
    color: var(--hr1-blue-900) !important;
}

.modal-body {
    background:
        linear-gradient(180deg, rgba(246, 242, 241, 0.78), rgba(254, 251, 250, 0.92) 12rem),
        var(--hr1-surface) !important;
}

.version-selector-container,
.earlier-bill-container,
#similarity-matrix-panel,
.diff-note,
.stat-box,
.side-panel,
.feature-item,
.version-item {
    background: var(--hr1-surface-strong) !important;
    border: 1px solid var(--hr1-border) !important;
    border-radius: var(--hr1-radius) !important;
    box-shadow: var(--hr1-shadow-sm);
}

.version-selector-title,
.version-select-label,
.earlier-bill-container .earlier-bill-label {
    color: var(--hr1-blue-900) !important;
    font-weight: 800 !important;
}

.diff-note {
    border-left: 4px solid var(--hr1-teal) !important;
    color: var(--hr1-muted) !important;
    font-size: 0.95rem !important;
    line-height: 1.6 !important;
}

.diff-stats {
    gap: 0.85rem !important;
}

.stat-box {
    min-width: 7rem !important;
    padding: 0.9rem 1rem !important;
}

.stat-number {
    color: var(--hr1-blue-900);
    font-family: var(--hr1-font-serif);
    font-variant-numeric: tabular-nums;
    font-weight: 700 !important;
}

.stat-label {
    color: var(--hr1-muted-light) !important;
    font-size: 0.72rem !important;
    font-weight: 800 !important;
    letter-spacing: 0.07em !important;
}

.stat-added .stat-number {
    color: var(--hr1-green) !important;
}

.stat-removed .stat-number {
    color: var(--hr1-red) !important;
}

.stat-changed .stat-number {
    color: var(--hr1-amber) !important;
}

.stat-similarity .stat-number,
.stat-nltk .stat-number {
    color: var(--hr1-teal) !important;
}

.side-by-side-container {
    gap: 1rem !important;
    background: transparent !important;
    border: 0 !important;
}

.side-panel {
    overflow: hidden;
}

.panel-header {
    background: var(--hr1-blue-900) !important;
    color: var(--hr1-surface) !important;
    font-weight: 800 !important;
    letter-spacing: 0.045em;
}

.panel-content {
    color: var(--hr1-muted) !important;
    font-family: var(--hr1-font-ui) !important;
    font-size: 0.96rem !important;
    line-height: 1.72 !important;
}

.money-highlight {
    background: #fff1bf !important;
    color: #6f3b00 !important;
    border-radius: 2px;
    padding: 0 0.12rem;
}

.word-modified-left {
    background-color: #f7d8d3 !important;
    color: var(--hr1-red-dark) !important;
}

.word-modified-right {
    background-color: #d8eadf !important;
    color: #145a39 !important;
}

.enrolled-only-banner {
    background: rgba(159, 47, 36, 0.1) !important;
    border: 1px solid rgba(159, 47, 36, 0.25);
    border-radius: var(--hr1-radius);
    color: var(--hr1-red-dark) !important;
}

.enrolled-only-text-panel {
    border-color: var(--hr1-border) !important;
    border-radius: var(--hr1-radius) !important;
}

.enrolled-only-text-header {
    background: var(--hr1-blue-900) !important;
    color: var(--hr1-surface) !important;
}

.enrolled-only-text-body {
    background: var(--hr1-surface-strong) !important;
    color: var(--hr1-muted) !important;
}

.earlier-bill-btn,
.cta-btn {
    background: var(--hr1-red) !important;
    color: var(--hr1-surface) !important;
    text-decoration: none !important;
}

.earlier-bill-btn:hover,
.cta-btn:hover {
    background: var(--hr1-red-dark) !important;
    box-shadow: var(--hr1-shadow-sm);
}

/* About page details */
.version-legend,
.feature-grid {
    gap: 0.9rem !important;
}

.version-item {
    padding: 0.8rem !important;
}

.feature-item {
    padding: 1.05rem !important;
}

.feature-item strong {
    color: var(--hr1-blue-900) !important;
    font-size: 0.95rem !important;
}

.feature-item p {
    color: var(--hr1-muted) !important;
}

.methodology-list li::before {
    color: var(--hr1-red) !important;
    font-weight: 800;
}

.cta-section {
    border-top-color: var(--hr1-border) !important;
}

@media (max-width: 900px) {
    .top-nav {
        align-items: flex-start !important;
        flex-direction: column;
    }

    .nav-links {
        justify-content: flex-start;
        width: 100%;
    }

    .controls,
    .toolbar {
        align-items: stretch !important;
    }

    .stats,
    .count-badge {
        margin-left: 0 !important;
        width: 100%;
    }
}

@media (max-width: 768px) {
    .header-content,
    .controls,
    .traces-container,
    .page-container,
    .about-container {
        padding-left: 1rem !important;
        padding-right: 1rem !important;
    }

    .controls,
    .toolbar,
    .filter-bar {
        flex-direction: column;
    }

    .filter-btn,
    .search-box,
    .search-box input {
        width: 100%;
        max-width: none !important;
    }

    .version-key {
        align-items: stretch !important;
    }

    .key-item {
        width: 100%;
        justify-content: space-between;
    }

    .modal-content {
        width: 100% !important;
        height: calc(100vh - 1rem) !important;
    }

    .modal-body {
        padding: 1rem !important;
    }

    .side-by-side-container {
        grid-template-columns: 1fr !important;
    }
}

@media (max-width: 560px) {
    .nav-brand::before {
        display: none;
    }

    .nav-links a {
        flex: 1 1 calc(50% - 0.25rem);
        text-align: center;
    }

    .page-header,
    .page-card,
    .about-card {
        padding: 1.25rem !important;
    }

    .diff-stats {
        display: grid !important;
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .stat-box {
        min-width: 0 !important;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
    }
}