/* ============================================================
   gabrielefabietti.xyz — Web Research Archive Stylesheet
   Follows DESIGN.md: brutalist, monospace, 0.85px borders, no radius.

   Inspired by: gwern.net (sidenotes, metadata), danluu.com (bare lists),
   citriniresearch.com (editorial spacing), tufte-css (reading comfort).
   ============================================================ */

/* === Reset === */

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* === Base === */

html {
    font-size: 14px;
    scroll-behavior: smooth;
    scroll-padding-top: 4rem;
}

body {
    font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', 'Courier New', monospace;
    background: #fafafa;
    color: #000;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

.site-body {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.site-body .container {
    flex: 1;
}


/* === Universal Transitions === */

button, a, input, select, textarea, .report-row, .pdf-download {
    transition: all 0.15s;
}

/* === Scrollbars === */

::-webkit-scrollbar {
    width: 0.5rem;
    height: 0.5rem;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: #d1d5db;
}

::-webkit-scrollbar-thumb:hover {
    background: #9ca3af;
}

/* === Layout === */

.container {
    max-width: 720px;
    margin: 0 auto;
    padding: 0 1.25rem;
}

/* === Site Nav === */

.site-nav {
    border-bottom: 0.85px solid #e5e7eb;
    padding: 0.9375rem 1.25rem;
    position: sticky;
    top: 0;
    background: #fafafa;
    z-index: 100;
}

.nav-inner {
    max-width: 720px;
    margin: 0 auto;
    display: flex;
    justify-content: center;
    align-items: center;
}

.site-nav .logo-link {
    font-size: 1.125rem;
    color: #000;
    text-decoration: none;
    letter-spacing: 0.05em;
    font-weight: 600;
    text-transform: lowercase;
}

.site-nav .logo-link:hover {
    color: #000;
}

.nav-links {
    display: flex;
    gap: 1.25rem;
}

.nav-links a {
    font-size: 0.75rem;
    color: #6b7280;
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.nav-links a:hover {
    color: #000;
}

/* === Site Footer === */

.site-footer {
    font-size: 0.75rem;
    color: #6b7280;
    text-transform: uppercase;
    letter-spacing: 0.025em;
    margin-top: 2.5rem;
    padding: 1.25rem;
    border-top: 0.85px solid #e5e7eb;
}

.footer-inner {
    max-width: 720px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-left {
    color: #9ca3af;
}

.footer-right {
    display: flex;
    gap: 1.25rem;
}

.footer-right a {
    color: #9ca3af;
    text-decoration: none;
}

.footer-right a:hover {
    color: #000;
}

/* ============================================================
   INDEX / ARCHIVE PAGE
   Danluu-inspired scannable list: date — title — meta
   ============================================================ */

.archive-header {
    margin-top: 2.5rem;
    margin-bottom: 2.5rem;
    padding-bottom: 1.25rem;
    border-bottom: 0.85px solid #e5e7eb;
}

.archive-header h1 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #000;
    line-height: 2rem;
    margin-bottom: 0.375rem;
}

.archive-header p {
    color: #6b7280;
    font-size: 0.875rem;
}

.report-list {
    display: flex;
    flex-direction: column;
}

.report-row {
    display: flex;
    align-items: baseline;
    gap: 1.25rem;
    padding: 0.75rem 0;
    border-bottom: 0.85px solid #e5e7eb;
    text-decoration: none;
    color: #000;
}

.report-row:hover {
    background: #fff;
}

.report-row:first-child {
    border-top: 0.85px solid #e5e7eb;
}

.row-date {
    font-size: 0.75rem;
    color: #9ca3af;
    white-space: nowrap;
    min-width: 5.5rem;
    letter-spacing: 0.025em;
}

.row-title {
    font-size: 0.875rem;
    font-weight: 500;
    flex: 1;
    color: #000;
}

.report-row:hover .row-title {
    text-decoration: underline;
    text-decoration-color: #d1d5db;
    text-underline-offset: 2px;
}

.row-meta {
    display: flex;
    gap: 0.625rem;
    align-items: baseline;
    white-space: nowrap;
}

.row-domain {
    font-size: 0.75rem;
    color: #6b7280;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border: 0.85px solid #e5e7eb;
    padding: 0.0625rem 0.375rem;
}

.row-reading {
    font-size: 0.75rem;
    color: #9ca3af;
}

/* ============================================================
   REPORT PAGES — HEADER
   ============================================================ */

.report-header {
    margin-bottom: 2.5rem;
    padding-bottom: 1.875rem;
    border-bottom: 0.85px solid #e5e7eb;
}

.report-header--centered {
    text-align: center;
}

.report-header .report-type-label {
    font-size: 0.75rem;
    color: #166534;
    text-transform: uppercase;
    letter-spacing: 0.025em;
    font-weight: 500;
    margin-bottom: 0.375rem;
}

.report-header .report-type-label--amber {
    color: #854d0e;
}

.report-header .header-top-row {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    margin-top: 1.875rem;
    margin-bottom: 0.9375rem;
}

.report-header .sys-label {
    font-size: 0.75rem;
    color: #9ca3af;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0;
}

.report-header .header-date {
    font-size: 0.75rem;
    color: #9ca3af;
    letter-spacing: 0.025em;
}

.report-header .title {
    font-size: 2rem;
    font-weight: 600;
    color: #000;
    line-height: 1.2;
    margin-bottom: 0.9375rem;
}

.report-header .subtitle {
    font-size: 1rem;
    color: #6b7280;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.report-header .meta-block {
    display: flex;
    gap: 2.5rem;
    flex-wrap: wrap;
}

.report-header .meta-block--centered {
    justify-content: center;
}

.report-header .meta-item {
    display: flex;
    flex-direction: column;
}

.report-header .meta-label {
    font-size: 0.75rem;
    color: #9ca3af;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.125rem;
}

.report-header .meta-value {
    font-size: 0.875rem;
    color: #000;
}

/* PDF download — secondary button */
.pdf-download {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.75rem;
    color: #000;
    text-decoration: none;
    border: 0.85px solid #e5e7eb;
    padding: 0.5rem 1rem;
    margin-top: 1.25rem;
    font-family: inherit;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.pdf-download:hover {
    color: #000;
    border-color: #9ca3af;
    background: #fff;
}

/* ============================================================
   TABLE OF CONTENTS
   ============================================================ */

.toc-section {
    margin-bottom: 1.875rem;
    padding-bottom: 1.25rem;
    border-bottom: 0.85px solid #e5e7eb;
}

.toc-label {
    font-size: 0.75rem;
    color: #9ca3af;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding-bottom: 0.625rem;
    font-weight: 500;
}

.toc ul {
    list-style: none;
}

.toc li {
    margin: 0;
    padding: 0;
}

.toc > ul > li {
    margin-bottom: 0.0625rem;
    padding: 0.375rem 0;
    border-bottom: 0.85px solid #e5e7eb;
}

.toc > ul > li:last-child {
    border-bottom: none;
}

.toc > ul > li > a {
    font-size: 0.875rem;
    font-weight: 500;
    color: #000;
    text-decoration: none;
}

.toc > ul > li > a:hover {
    text-decoration: underline;
    text-decoration-color: #d1d5db;
    text-underline-offset: 2px;
}

.toc > ul > li > ul > li > a {
    font-size: 0.875rem;
    font-weight: 400;
    color: #6b7280;
    text-decoration: none;
    padding-left: 1.25rem;
    display: block;
    margin-top: 0.125rem;
}

.toc > ul > li > ul > li > a:hover {
    color: #000;
}

/* ============================================================
   ARTICLE CONTENT — TYPOGRAPHY
   Optimized for long-form reading: 1.7 line-height, generous spacing
   ============================================================ */

/* === Headings === */

h1, h2, h3, h4, h5, h6 {
    color: #000;
    line-height: 1.3;
}

.content h1 {
    font-size: 1.5rem;
    font-weight: 600;
    border-bottom: 0.85px solid #e5e7eb;
    padding-bottom: 0.625rem;
    margin-top: 2.5rem;
    margin-bottom: 1.25rem;
}

.content h1:first-child {
    display: none;
}

h2 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-top: 2.5rem;
    margin-bottom: 0.625rem;
    padding-bottom: 0.375rem;
    border-bottom: 0.85px solid #e5e7eb;
}

h2::before {
    content: "// ";
    color: #9ca3af;
    font-weight: 400;
    font-size: 1rem;
}

h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-top: 1.875rem;
    margin-bottom: 0.375rem;
    color: #000;
}

h4 {
    font-weight: 500;
    margin-top: 1.25rem;
    margin-bottom: 0.375rem;
    color: #6b7280;
    text-transform: uppercase;
    letter-spacing: 0.025em;
    font-size: 0.75rem;
}

/* Permalink anchors */
.headerlink {
    color: #d1d5db;
    text-decoration: none;
    margin-left: 0.375rem;
    opacity: 0;
    transition: all 0.15s;
    font-weight: 400;
}

h2:hover .headerlink,
h3:hover .headerlink {
    opacity: 1;
}

.headerlink:hover {
    color: #9ca3af;
}

/* === Paragraphs & Inline === */

.content p {
    margin: 0 0 1.5rem 0;
    line-height: 1.8;
    text-align: justify;
    hyphens: auto;
    -webkit-hyphens: auto;
}

p {
    margin: 0 0 0.625rem 0;
}

strong {
    font-weight: 600;
    color: #000;
}

em {
    font-style: italic;
}

/* Links — differentiate internal vs external */
a {
    color: #000;
    text-decoration: underline;
    text-decoration-color: #d1d5db;
    text-underline-offset: 2px;
}

a:hover {
    text-decoration-color: #000;
}

/* External links get a subtle indicator */
.content a[href^="http"]:not([href*="fabietti.xyz"])::after {
    content: "\2009\2197";
    font-size: 0.75rem;
    color: #9ca3af;
    vertical-align: super;
}

/* === Blockquotes === */

blockquote {
    margin: 1.25rem 0;
    padding: 0.9375rem 1.25rem;
    border-left: 2px solid #000;
    background: transparent;
    color: #6b7280;
    font-style: italic;
    line-height: 1.7;
    text-align: justify;
    hyphens: auto;
    -webkit-hyphens: auto;
}

blockquote p {
    margin: 0;
}

blockquote p + p {
    margin-top: 0.625rem;
}

/* === Tables === */

table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.25rem 0;
    font-size: 0.875rem;
}

thead {
    background: #f3f4f6;
    border-bottom: 0.85px solid #e5e7eb;
}

th {
    font-weight: 500;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-align: left;
    padding: 0.75rem 1rem;
    color: #6b7280;
}

td {
    padding: 0.9375rem 1rem;
    border-bottom: 0.85px solid #e5e7eb;
    vertical-align: top;
    color: #000;
    line-height: 1.6;
}

tbody tr:hover {
    background: #fff;
}

tbody tr:last-child td {
    border-bottom: none;
}

/* Responsive table wrapper */
.table-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

/* === Code === */

code {
    font-family: inherit;
    font-size: 0.875rem;
    background: #f3f4f6;
    border: 0.85px solid #e5e7eb;
    padding: 0.125rem 0.375rem;
    color: #166534;
}

pre {
    background: #f3f4f6;
    color: #000;
    padding: 1.25rem;
    border: 0.85px solid #e5e7eb;
    overflow-x: auto;
    margin: 1.25rem 0;
    font-size: 0.875rem;
    line-height: 1.5;
}

pre code {
    background: none;
    border: none;
    padding: 0;
    color: inherit;
    font-size: inherit;
}

.highlight {
    background: #f3f4f6;
    color: #000;
    padding: 1.25rem;
    border: 0.85px solid #e5e7eb;
    margin: 1.25rem 0;
    font-size: 0.875rem;
    line-height: 1.5;
}

.highlight pre {
    background: none;
    padding: 0;
    margin: 0;
    border: none;
}

/* === Lists === */

.content ul, .content ol {
    margin: 0.625rem 0 1.5rem 0;
    padding-left: 1.25rem;
    line-height: 1.8;
    text-align: justify;
    hyphens: auto;
    -webkit-hyphens: auto;
}

ul, ol {
    margin: 0.625rem 0 0.9375rem 0;
    padding-left: 1.25rem;
}

li {
    margin-bottom: 0.375rem;
}

li > ul, li > ol {
    margin-top: 0.375rem;
    margin-bottom: 0;
}

li::marker {
    color: #9ca3af;
}

/* === Horizontal Rules === */

hr {
    border: none;
    height: 0.85px;
    background: #e5e7eb;
    margin: 2.5rem 0;
}

/* === Footnotes === */

.footnote {
    font-size: 0.75rem;
    line-height: 1.5;
    color: #6b7280;
    margin-top: 0;
    padding-top: 0;
    border-top: none;
}

.footnote hr {
    display: none;
}

.footnote ol {
    padding-left: 1.25rem;
}

.footnote li {
    margin-bottom: 0.375rem;
}

.footnote-ref {
    font-size: 0.75rem;
    vertical-align: super;
    text-decoration: none;
    color: #6b7280;
}

.footnote-backref {
    text-decoration: none;
    color: #9ca3af;
}

/* ============================================================
   ADMONITIONS / CALLOUTS
   ============================================================ */

.admonition {
    margin: 1.25rem 0;
    padding: 1.25rem;
    border-left: 2px solid #9ca3af;
    background: transparent;
}

.admonition-title {
    font-weight: 500;
    font-size: 0.75rem;
    color: #6b7280;
    margin: 0 0 0.375rem 0;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

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

.admonition.warning {
    border-left-color: #eab308;
}

.admonition.warning .admonition-title {
    color: #854d0e;
}

.admonition.danger {
    border-left-color: #ef4444;
}

.admonition.danger .admonition-title {
    color: #991b1b;
}

.admonition.tip, .admonition.insight {
    border-left-color: #22c55e;
}

.admonition.tip .admonition-title,
.admonition.insight .admonition-title {
    color: #166534;
}

.admonition.note {
    border-left-color: #9ca3af;
}

.admonition.note .admonition-title {
    color: #6b7280;
}

.admonition.thesis {
    border-left-color: #000;
}

.admonition.thesis .admonition-title {
    color: #000;
}

.admonition.judgment {
    border-left-color: #eab308;
}

.admonition.judgment .admonition-title {
    color: #854d0e;
}

.admonition.finding {
    border-left-color: #22c55e;
}

.admonition.finding .admonition-title {
    color: #166534;
}

/* ============================================================
   IMAGES / FIGURES
   ============================================================ */

img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 1.25rem auto;
}

figure {
    margin: 1.25rem 0;
    text-align: center;
}

figcaption {
    font-size: 0.75rem;
    font-style: normal;
    color: #9ca3af;
    margin-top: 0.375rem;
    text-align: center;
    letter-spacing: 0.025em;
}

/* ============================================================
   TEMPLATE-SPECIFIC OVERRIDES
   ============================================================ */

/* Academic */
.academic-content {
    counter-reset: section;
}

.academic-content h2 {
    counter-increment: section;
    font-size: 1.125rem;
    color: #000;
}

.academic-content h2::before {
    content: counter(section) ". ";
    font-weight: 600;
    color: #9ca3af;
}

.academic-content h3 {
    font-size: 1rem;
}

.abstract {
    margin: 0 0 1.25rem 0;
    padding: 0.9375rem 0;
    border-bottom: 0.85px solid #e5e7eb;
}

.abstract h3 {
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #9ca3af;
    margin: 0 0 0.375rem 0;
}

.abstract p {
    font-size: 0.875rem;
    color: #6b7280;
    margin: 0;
    line-height: 1.7;
}

/* Financial */
.financial-content h2 {
    font-size: 1.125rem;
    font-weight: 600;
}

.financial-content table {
    font-size: 0.875rem;
}

.financial-content th {
    font-size: 0.75rem;
    padding: 0.625rem 0.9375rem;
}

.financial-content td {
    padding: 0.9375rem;
    font-variant-numeric: tabular-nums;
}

.financial-content td:not(:first-child),
.financial-content th:not(:first-child) {
    text-align: right;
}

.disclaimer {
    margin-top: 2.5rem;
    padding-top: 0.9375rem;
    border-top: 0.85px solid #e5e7eb;
    font-size: 0.75rem;
    color: #9ca3af;
    line-height: 1.5;
}

/* Briefing */
.briefing-content h2 {
    font-size: 1.125rem;
    font-weight: 600;
}

.briefing-content h2::before {
    content: none;
}

.briefing-content p {
    margin: 0 0 0.9375rem 0;
}

.key-judgments {
    margin: 0 0 1.25rem 0;
    padding: 1.25rem;
    background: transparent;
    border: 0.85px solid #e5e7eb;
    border-top: 2px solid #000;
}

.key-judgments h3 {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #000;
    margin: 0 0 0.625rem 0;
}

.key-judgments ul {
    margin: 0;
    padding-left: 1.25rem;
}

.key-judgments li {
    font-size: 0.875rem;
    margin-bottom: 0.375rem;
    line-height: 1.6;
}

.key-findings {
    margin: 0 0 1.25rem 0;
    padding: 1.25rem;
    background: transparent;
    border: 0.85px solid #e5e7eb;
    border-left: 2px solid #000;
}

.key-findings h3 {
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #9ca3af;
    margin: 0 0 0.625rem 0;
}

.key-findings ul {
    margin: 0;
    padding-left: 1.25rem;
}

.key-findings li {
    font-size: 0.875rem;
    margin-bottom: 0.375rem;
    line-height: 1.6;
}

/* Confidence badges (briefing) */
.confidence-high,
.confidence-moderate,
.confidence-low {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.0625rem 0.375rem;
    vertical-align: middle;
    margin-left: 0.375rem;
    border: 0.85px solid;
}

.confidence-high {
    color: #166534;
    border-color: #166534;
}

.confidence-moderate {
    color: #854d0e;
    border-color: #854d0e;
}

.confidence-low {
    color: #991b1b;
    border-color: #991b1b;
}

.classification-mark {
    font-size: 0.75rem;
    color: #9ca3af;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 0.9375rem;
}

.source-note {
    font-size: 0.75rem;
    color: #9ca3af;
    text-transform: uppercase;
    letter-spacing: 0.025em;
    margin-top: 2.5rem;
    padding-top: 0.9375rem;
    border-top: 0.85px solid #e5e7eb;
    line-height: 1.5;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 640px) {
    .container {
        padding: 0 1rem;
    }

    /* Nav: stack and ensure touch-friendly targets */
    .nav-inner {
        flex-direction: column;
        gap: 0.375rem;
        align-items: flex-start;
    }

    .site-nav .logo-link {
        padding: 0.375rem 0;
    }

    .nav-links a {
        padding: 0.5rem 0;
        display: inline-block;
    }

    /* Archive page */
    .archive-header {
        margin-top: 1.5rem;
        margin-bottom: 1.5rem;
    }

    .archive-header h1 {
        font-size: 1.25rem;
        line-height: 1.6;
    }

    /* Report rows: stack vertically */
    .report-row {
        flex-direction: column;
        gap: 0.25rem;
        padding: 0.875rem 0;
    }

    .row-date {
        min-width: auto;
    }

    .row-meta {
        gap: 0.375rem;
    }

    /* Report header */
    .report-header .title {
        font-size: 1.5rem;
        line-height: 1.2;
    }

    .report-header .header-top-row {
        flex-direction: column;
        gap: 0.25rem;
    }

    .report-header .meta-block {
        flex-direction: column;
        gap: 0.625rem;
    }

    /* Tables: keep readable */
    table {
        font-size: 0.8125rem;
    }

    th {
        padding: 0.625rem;
    }

    td {
        padding: 0.75rem 0.625rem;
    }

    /* Blockquotes & admonitions: tighter on mobile */
    blockquote {
        padding: 0.75rem 1rem;
    }

    .admonition {
        padding: 1rem;
    }

    /* Footer: stack */
    .footer-inner {
        flex-direction: column;
        gap: 0.625rem;
        text-align: center;
    }

    .footer-right {
        justify-content: center;
    }

    .footer-right a {
        padding: 0.375rem 0;
    }

    /* PDF download: ensure tap target */
    .pdf-download {
        padding: 0.625rem 1rem;
    }
}