/* ================================================================
   Finanzas de Cero — stylesheet
   Editorial design: serif for headings, sans for UI, forest green
   as accent. Automatic dark mode, user-toggleable.
   ================================================================ */

:root {
    --bg: #faf9f7;
    --surface: #ffffff;
    --ink: #1c2024;
    --ink-soft: #5a626b;
    --border: #e7e4de;
    --accent: #0e6e50;
    --accent-bg: #e8f3ee;
    --amber: #b45309;
    --amber-bg: #fdf1e3;
    --red-bg: #fbeaea;
    --red: #b0403c;
    --shadow: 0 1px 2px rgb(28 32 36 / .04), 0 8px 24px -12px rgb(28 32 36 / .12);
    --radius: 14px;
    --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, "Times New Roman", serif;
    --sans: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
    --mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;
    color-scheme: light;
}

[data-theme="dark"] {
    --bg: #101416;
    --surface: #181d20;
    --ink: #e9e6e0;
    --ink-soft: #9aa3ab;
    --border: #272e33;
    --accent: #3ecf95;
    --accent-bg: #16241f;
    --amber: #e5a158;
    --amber-bg: #2a2118;
    --red-bg: #2b1b1a;
    --red: #e08682;
    --shadow: 0 1px 2px rgb(0 0 0 / .3), 0 8px 24px -12px rgb(0 0 0 / .5);
    color-scheme: dark;
}

@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg: #101416;
        --surface: #181d20;
        --ink: #e9e6e0;
        --ink-soft: #9aa3ab;
        --border: #272e33;
        --accent: #3ecf95;
        --accent-bg: #16241f;
        --amber: #e5a158;
        --amber-bg: #2a2118;
        --red-bg: #2b1b1a;
        --red: #e08682;
        --shadow: 0 1px 2px rgb(0 0 0 / .3), 0 8px 24px -12px rgb(0 0 0 / .5);
        color-scheme: dark;
    }
}

/* ── Base ─────────────────────────────────────────────────────── */

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

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--sans);
    font-size: 1.0625rem;
    line-height: 1.6;
    color: var(--ink);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

@view-transition { navigation: auto; }

h1, h2, h3 { font-family: var(--serif); line-height: 1.15; text-wrap: balance; margin: 0 0 .5em; }
h1 { font-size: clamp(1.9rem, 4.5vw, 3rem); letter-spacing: -.01em; }
h2 { font-size: clamp(1.4rem, 2.6vw, 1.9rem); }
h3 { font-size: 1.15rem; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

img, svg { max-width: 100%; height: auto; }

.skip-link {
    position: absolute; left: -9999px; top: 0;
    background: var(--accent); color: #fff; padding: .6rem 1rem; z-index: 100;
}
.skip-link:focus { left: 0; }

.text-center { text-align: center; }

/* ── Header ───────────────────────────────────────────────────── */

.site-header {
    position: sticky; top: 0; z-index: 50;
    background: color-mix(in srgb, var(--bg) 82%, transparent);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.site-header-inner {
    max-width: 1120px; margin: 0 auto; padding: .65rem 1.25rem;
    display: flex; align-items: center; gap: 1.25rem;
}

.brand { display: flex; align-items: center; gap: .5rem; color: var(--ink); font-weight: 700; }
.brand:hover { text-decoration: none; }
.brand-logo { width: 2rem; height: 2rem; flex-shrink: 0; }
.brand-text { font-family: var(--serif); font-size: 1.15rem; letter-spacing: -.01em; }
.brand-text em { font-style: italic; color: var(--accent); }

.site-nav { display: flex; gap: 1.1rem; margin-inline: auto; align-items: center; }
.site-nav > a { color: var(--ink-soft); font-size: .95rem; font-weight: 500; }
.site-nav > a:hover { color: var(--ink); text-decoration: none; }

/* Grouped dropdowns (native <details>, no-JS friendly) */
.nav-group { position: relative; }
.nav-group summary {
    list-style: none; cursor: pointer;
    color: var(--ink-soft); font-size: .95rem; font-weight: 500;
    display: flex; align-items: center; gap: .3rem;
}
.nav-group summary::-webkit-details-marker { display: none; }
.nav-group summary::after {
    content: ""; width: .45em; height: .45em;
    border-right: 1.5px solid currentColor; border-bottom: 1.5px solid currentColor;
    rotate: 45deg; translate: 0 -2px;
    transition: rotate .15s ease;
}
.nav-group summary:hover, .nav-group[open] summary { color: var(--ink); }
.nav-group[open] summary::after { rotate: 225deg; translate: 0 2px; }
.nav-dropdown {
    position: absolute; top: calc(100% + .65rem); left: -.6rem;
    min-width: 215px; z-index: 60;
    display: flex; flex-direction: column;
    background: var(--surface);
    border: 1px solid var(--border); border-radius: var(--radius);
    box-shadow: var(--shadow); padding: .4rem;
}
.nav-dropdown a {
    padding: .5rem .7rem; border-radius: 8px;
    color: var(--ink); font-size: .93rem; font-weight: 500;
}
.nav-dropdown a:hover { background: var(--accent-bg); text-decoration: none; }

.search-box { position: relative; display: flex; align-items: center; }
.search-box input {
    width: clamp(140px, 16vw, 220px);
    padding: .45rem 2rem .45rem .8rem;
    font: inherit; font-size: .9rem; color: var(--ink);
    background: var(--surface);
    border: 1px solid var(--border); border-radius: 10px;
    outline-offset: 2px;
}
.search-box kbd {
    position: absolute; right: .5rem;
    font-family: var(--mono); font-size: .7rem;
    color: var(--ink-soft);
    border: 1px solid var(--border); border-radius: 4px;
    padding: 0 .3rem; pointer-events: none;
}
.search-results {
    position: absolute; top: calc(100% + .4rem); right: 0;
    width: min(420px, 92vw); max-height: 60vh; overflow: auto;
    background: var(--surface);
    border: 1px solid var(--border); border-radius: var(--radius);
    box-shadow: var(--shadow); padding: .4rem;
}
.search-results a {
    display: block; padding: .55rem .7rem; border-radius: 8px; color: var(--ink);
}
.search-results a:hover { background: var(--accent-bg); text-decoration: none; }
.search-results a small { display: block; color: var(--ink-soft); font-size: .8rem; }
.search-results .no-results { padding: .55rem .7rem; color: var(--ink-soft); font-size: .9rem; }

.theme-btn {
    font-size: 1.1rem; line-height: 1;
    background: none; border: 1px solid var(--border); border-radius: 10px;
    color: var(--ink-soft); padding: .4rem .55rem; cursor: pointer;
}
.theme-btn:hover { color: var(--ink); border-color: var(--ink-soft); }

/* ── Hero ─────────────────────────────────────────────────────── */

.hero {
    border-bottom: 1px solid var(--border);
    background:
        radial-gradient(60rem 24rem at 85% -20%, var(--accent-bg), transparent 60%),
        var(--bg);
}
.hero-inner { max-width: 880px; margin: 0 auto; padding: clamp(3rem, 8vw, 5.5rem) 1.25rem; text-align: center; }
.hero-kicker {
    font-size: .85rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase;
    color: var(--accent); margin: 0 0 1rem;
}
.hero .accent { color: var(--accent); font-style: italic; }
.hero-sub { max-width: 620px; margin: 1.1rem auto 1.8rem; color: var(--ink-soft); font-size: 1.15rem; }
.hero-cta { display: flex; gap: .75rem; justify-content: center; flex-wrap: wrap; }

.btn {
    display: inline-block; padding: .65rem 1.3rem;
    border-radius: 10px; font-weight: 600; font-size: .98rem;
    border: 1px solid transparent; cursor: pointer;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { filter: brightness(1.08); }
.btn-secondary { border-color: var(--border); color: var(--ink); background: var(--surface); }
.btn-secondary:hover { border-color: var(--ink-soft); }

/* ── Blocks and grids ─────────────────────────────────────────── */

.block { max-width: 1120px; margin: 0 auto; padding: clamp(2rem, 5vw, 3.5rem) 1.25rem; }

.block-header {
    display: flex; align-items: baseline; justify-content: space-between; gap: 1rem;
    margin: 1.5rem 0 1.2rem; flex-wrap: wrap;
}
.block-header p { color: var(--ink-soft); margin: 0; }
.see-all { font-size: .92rem; font-weight: 600; white-space: nowrap; }

.grid { display: grid; gap: 1rem; }
.grid-2 { grid-template-columns: repeat(auto-fill, minmax(min(100%, 340px), 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fill, minmax(min(100%, 280px), 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fill, minmax(min(100%, 240px), 1fr)); }

.card {
    display: flex; flex-direction: column; gap: .45rem;
    background: var(--surface);
    border: 1px solid var(--border); border-radius: var(--radius);
    padding: 1.15rem 1.2rem;
    color: var(--ink);
    transition: translate .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.card:hover {
    text-decoration: none;
    translate: 0 -2px;
    box-shadow: var(--shadow);
    border-color: color-mix(in srgb, var(--accent) 40%, var(--border));
}
.card h3 { margin: 0; }
.card p { margin: 0; color: var(--ink-soft); font-size: .93rem; }
.card-footer { margin-top: auto; padding-top: .5rem; font-size: .82rem; color: var(--ink-soft); }
.card-compact { padding: .9rem 1rem; }
.card-compact p {
    font-size: .87rem;
    display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden;
}
.chips { display: flex; gap: .4rem; flex-wrap: wrap; }
.chip {
    display: inline-block; padding: .12rem .6rem;
    font-size: .76rem; font-weight: 600; letter-spacing: .02em;
    border-radius: 99px;
    background: var(--bg); border: 1px solid var(--border); color: var(--ink-soft);
}
a.chip:hover { text-decoration: none; border-color: var(--accent); color: var(--accent); }
.chip-level-beginner { background: var(--accent-bg); border-color: transparent; color: var(--accent); }
.chip-level-intermediate { background: var(--amber-bg); border-color: transparent; color: var(--amber); }
.chip-level-advanced { background: var(--red-bg); border-color: transparent; color: var(--red); }

/* ── Article lists ────────────────────────────────────────────── */

.article-list { display: flex; flex-direction: column; }
.article-row {
    display: flex; align-items: center; justify-content: space-between; gap: 1rem;
    padding: 1rem .5rem;
    border-bottom: 1px solid var(--border);
    color: var(--ink);
}
.article-row:hover { text-decoration: none; background: color-mix(in srgb, var(--surface) 60%, var(--bg)); }
.article-row:hover h3 { color: var(--accent); }
.article-row h3 { margin: 0 0 .15rem; }
.article-row p { margin: 0; color: var(--ink-soft); font-size: .92rem; }
.article-row .chip { flex-shrink: 0; }

/* ── Inner pages ──────────────────────────────────────────────── */

.page { max-width: 1120px; margin: 0 auto; padding: clamp(1.5rem, 4vw, 2.5rem) 1.25rem 3.5rem; }
.page-narrow { max-width: 760px; margin: 0 auto; padding: clamp(1.5rem, 4vw, 2.5rem) 1.25rem 3.5rem; }
.page-header { max-width: 760px; margin-bottom: 2rem; }
.page-header > p { color: var(--ink-soft); font-size: 1.1rem; }
.article-header { margin-bottom: 1.8rem; }
.article-header h1 { margin-top: .6rem; }

.breadcrumbs { font-size: .85rem; color: var(--ink-soft); margin-bottom: 1.4rem; }
.breadcrumbs a { color: var(--ink-soft); }
.breadcrumbs a:hover { color: var(--accent); }

.meta-line { color: var(--ink-soft); font-size: .9rem; }
.short-definition { font-size: 1.15rem; color: var(--ink-soft); font-style: italic; }

/* ── Syllabus (courses and learning paths) ────────────────────── */

.syllabus { list-style: none; margin: 0 0 2rem; padding: 0; max-width: 760px; }
.syllabus li + li { margin-top: .6rem; }
.syllabus-item {
    display: flex; gap: 1rem; align-items: flex-start;
    background: var(--surface);
    border: 1px solid var(--border); border-radius: var(--radius);
    padding: 1rem 1.1rem; color: var(--ink);
    transition: border-color .15s ease, box-shadow .15s ease;
}
.syllabus-item:hover {
    text-decoration: none;
    border-color: color-mix(in srgb, var(--accent) 40%, var(--border));
    box-shadow: var(--shadow);
}
.syllabus-num {
    flex-shrink: 0; display: grid; place-items: center;
    width: 2rem; height: 2rem; border-radius: 50%;
    background: var(--accent-bg); color: var(--accent);
    font-family: var(--serif); font-weight: 700;
}
.syllabus-body { display: flex; flex-direction: column; gap: .15rem; }
.syllabus-body small { color: var(--ink-soft); }
.syllabus-type {
    text-transform: uppercase; letter-spacing: .08em; font-weight: 700; font-size: .68rem !important;
    color: var(--accent) !important;
}

/* ── Prose (rendered markdown) ────────────────────────────────── */

.prose { font-size: 1.0925rem; line-height: 1.75; }
.prose > * + * { margin-top: 1.1em; }
.prose h1 { font-size: clamp(1.8rem, 4vw, 2.5rem); margin: 0 0 .6em; }
.prose h2 { margin-top: 1.8em; }
.prose h3 { margin-top: 1.5em; }
.prose ul, .prose ol { padding-left: 1.4rem; }
.prose li + li { margin-top: .4em; }
.prose strong { color: color-mix(in srgb, var(--ink) 88%, var(--accent)); }
.prose blockquote {
    margin: 1.4em 0; padding: .8em 1.2em;
    border-left: 4px solid var(--accent);
    background: var(--accent-bg); border-radius: 0 10px 10px 0;
    font-family: var(--serif); font-style: italic; font-size: 1.08em;
}
.prose blockquote p { margin: 0; }
.prose code { font-family: var(--mono); font-size: .88em; background: var(--surface); border: 1px solid var(--border); border-radius: 5px; padding: .1em .35em; }
.prose pre { overflow-x: auto; background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 1rem; }
.prose pre code { border: 0; padding: 0; background: none; }
.prose table {
    width: 100%; border-collapse: collapse; font-size: .95rem;
    display: block; overflow-x: auto;
}
.prose th, .prose td { padding: .55rem .8rem; border: 1px solid var(--border); text-align: left; }
.prose th { background: var(--surface); font-weight: 600; }
.prose tbody tr:nth-child(even) { background: color-mix(in srgb, var(--surface) 55%, var(--bg)); }
.prose hr { border: 0; border-top: 1px solid var(--border); margin: 2em 0; }

/* ── Reading progress bar (scroll-driven, no JS) ──────────────── */

.reading-progress {
    position: fixed; top: 0; left: 0; right: 0; height: 3px; z-index: 60;
    background: var(--accent);
    transform-origin: 0 50%;
    scale: 0 1;
}
@supports (animation-timeline: scroll()) {
    .reading-progress {
        scale: 1 1;
        animation: grow-progress linear both;
        animation-timeline: scroll(root);
    }
    @keyframes grow-progress {
        from { scale: 0 1; }
        to   { scale: 1 1; }
    }
}

/* ── Lesson pager ─────────────────────────────────────────────── */

.pager {
    display: grid; grid-template-columns: 1fr 1fr; gap: .8rem;
    margin-top: 3rem; padding-top: 1.5rem; border-top: 1px solid var(--border);
}
.pager-item {
    display: flex; flex-direction: column; gap: .2rem;
    padding: .9rem 1.1rem;
    background: var(--surface);
    border: 1px solid var(--border); border-radius: var(--radius);
    color: var(--ink);
}
.pager-item:hover { text-decoration: none; border-color: var(--accent); }
.pager-item small { color: var(--ink-soft); font-size: .78rem; }
.pager-item span { font-weight: 600; font-size: .95rem; }
.pager-next { text-align: right; align-items: flex-end; }

/* ── Lesson layout: content + sticky syllabus sidebar ─────────── */

.lesson-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 280px;
    gap: 3rem;
    align-items: start;
}
.lesson-main { max-width: 760px; }

.lesson-aside { position: sticky; top: 4.5rem; }
.course-progress {
    background: var(--surface);
    border: 1px solid var(--border); border-radius: var(--radius);
    padding: 1rem 1.1rem;
    font-size: .88rem;
    max-height: calc(100vh - 6rem); overflow: auto;
}
.course-progress-title { margin: 0 0 .7rem; font-weight: 700; }
.course-progress-title a { color: var(--ink); }
.course-progress ol {
    list-style: none; margin: 0; padding: 0;
    counter-reset: lesson;
}
.course-progress li {
    counter-increment: lesson;
    display: flex; align-items: baseline; gap: .5rem;
    padding: .35rem 0;
    border-top: 1px solid var(--border);
}
.course-progress li::before {
    content: counter(lesson);
    flex-shrink: 0;
    display: inline-grid; place-items: center;
    width: 1.4rem; height: 1.4rem; border-radius: 50%;
    font-size: .72rem; font-weight: 700;
    background: var(--bg); color: var(--ink-soft);
    border: 1px solid var(--border);
    align-self: center;
}
.course-progress li.current::before {
    background: var(--accent); color: #fff; border-color: var(--accent);
}
.course-progress li.done::before {
    content: "✓";
    background: var(--accent-bg); color: var(--accent); border-color: transparent;
}
.course-progress li a { color: var(--ink-soft); }
.course-progress li a:hover { color: var(--accent); text-decoration: none; }
.course-progress li.current span { color: var(--ink); font-weight: 600; }

@media (max-width: 1000px) {
    .lesson-layout { grid-template-columns: 1fr; gap: 0; }
    .lesson-aside { position: static; order: 2; margin-top: 2rem; }
}

/* ── Quizzes ──────────────────────────────────────────────────── */

.quiz {
    margin-top: 3rem;
    background: var(--surface);
    border: 1px solid var(--border); border-radius: var(--radius);
    padding: 1.5rem;
}
.quiz-title { margin-top: 0; }
.quiz-intro { color: var(--ink-soft); margin-top: 0; }
.quiz-question {
    border: 0; padding: 0; margin: 1.4rem 0 0;
}
.quiz-question legend { font-weight: 600; margin-bottom: .5rem; padding: 0; }
.quiz-option {
    display: flex; gap: .55rem; align-items: baseline;
    padding: .45rem .6rem; margin: .25rem 0;
    border: 1px solid var(--border); border-radius: 10px;
    cursor: pointer;
}
.quiz-option:hover { border-color: var(--accent); }
.quiz-option input { accent-color: var(--accent); }
.quiz-question.correct .quiz-option:has(input:checked) {
    border-color: var(--accent); background: var(--accent-bg);
}
.quiz-question.wrong .quiz-option:has(input:checked) {
    border-color: var(--red); background: var(--red-bg);
}
.quiz-question.graded .quiz-option[data-right="1"] {
    border-color: var(--accent); background: var(--accent-bg);
}
.quiz-why {
    margin: .5rem 0 0; padding: .55rem .8rem;
    font-size: .9rem; color: var(--ink-soft);
    background: var(--bg); border-left: 3px solid var(--accent);
    border-radius: 0 8px 8px 0;
}
.quiz-actions { margin-top: 1.4rem; display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.quiz-score { margin: 0; font-weight: 700; }
.quiz-score.pass { color: var(--accent); }
.quiz-score.fail { color: var(--red); }

/* ── Risk chips (portfolios) ──────────────────────────────────── */

.chip-risk-bajo { background: var(--accent-bg); border-color: transparent; color: var(--accent); }
.chip-risk-medio { background: var(--amber-bg); border-color: transparent; color: var(--amber); }
.chip-risk-alto { background: var(--red-bg); border-color: transparent; color: var(--red); }

/* ── Glossary ─────────────────────────────────────────────────── */

.glossary-group { margin-bottom: 2rem; }
.glossary-letter {
    font-size: 1.5rem; color: var(--accent);
    border-bottom: 2px solid var(--accent-bg);
    padding-bottom: .3rem; margin-bottom: 1rem;
}

/* ── Large search form ────────────────────────────────────────── */

.search-large { display: flex; gap: .6rem; max-width: 560px; }
.search-large input {
    flex: 1; padding: .7rem 1rem; font: inherit;
    color: var(--ink); background: var(--surface);
    border: 1px solid var(--border); border-radius: 10px;
}

/* ── Calculators ──────────────────────────────────────────────── */

.calculator {
    background: var(--surface);
    border: 1px solid var(--border); border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.4rem; margin-bottom: 2.5rem;
}
.calculator-inputs {
    display: grid; gap: 1rem;
    grid-template-columns: repeat(auto-fill, minmax(min(100%, 210px), 1fr));
    margin-bottom: 1.4rem;
}
.field { display: flex; flex-direction: column; gap: .3rem; }
.field-label { font-size: .85rem; font-weight: 600; color: var(--ink-soft); }
.field-control { display: flex; align-items: center; gap: .4rem; }
.field-control input {
    width: 100%; padding: .55rem .7rem; font: inherit; font-size: 1rem;
    color: var(--ink); background: var(--bg);
    border: 1px solid var(--border); border-radius: 10px;
}
.field-unit { color: var(--ink-soft); font-size: .9rem; }

.calculator-results {
    display: grid; gap: .8rem;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 180px), 1fr));
    border-top: 1px solid var(--border); padding-top: 1.2rem;
}
.result { display: flex; flex-direction: column; gap: .15rem; }
.result-label { font-size: .82rem; color: var(--ink-soft); }
.result-value { font-family: var(--serif); font-size: 1.35rem; color: var(--ink); }
.result-main .result-value { font-size: 1.9rem; color: var(--accent); }

/* ── Quick-reference tiles (home) ─────────────────────────────── */

.quick-links {
    display: grid; gap: .8rem;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 190px), 1fr));
}
.quick-link {
    display: flex; flex-direction: column; gap: .2rem;
    background: var(--surface);
    border: 1px solid var(--border); border-radius: var(--radius);
    padding: .9rem 1rem; color: var(--ink);
    transition: border-color .15s ease;
}
.quick-link:hover { text-decoration: none; border-color: var(--accent); }
.quick-link strong { font-family: var(--serif); font-size: 1.02rem; }
.quick-link small { color: var(--ink-soft); font-size: .84rem; }

/* ── Manifesto ────────────────────────────────────────────────── */

.manifesto {
    max-width: 820px; text-align: center;
    border-top: 1px solid var(--border);
}
.manifesto p { color: var(--ink-soft); font-size: 1.08rem; margin-bottom: 1.4rem; }

/* ── Footer ───────────────────────────────────────────────────── */

.site-footer { border-top: 1px solid var(--border); background: var(--surface); margin-top: 2rem; }
.site-footer-inner {
    max-width: 1120px; margin: 0 auto; padding: 2.5rem 1.25rem 1rem;
    display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 2rem;
}
.footer-col { display: flex; flex-direction: column; gap: .45rem; }
.footer-heading {
    margin: 0 0 .2rem; font-size: .8rem; font-weight: 700;
    letter-spacing: .08em; text-transform: uppercase; color: var(--ink-soft);
}
.footer-col a { color: var(--ink-soft); font-size: .92rem; }
.footer-col a:hover { color: var(--accent); }
.footer-brand { font-family: var(--serif); font-weight: 700; font-size: 1.1rem; margin: 0; }
.footer-brand em { color: var(--accent); }
.footer-tagline { color: var(--ink-soft); font-size: .92rem; margin: 0; max-width: 34ch; }
.footer-legal {
    max-width: 1120px; margin: 0 auto; padding: 1rem 1.25rem 1.5rem;
    color: var(--ink-soft); font-size: .8rem;
}

/* ── Mobile ───────────────────────────────────────────────────── */

@media (max-width: 760px) {
    .site-header-inner { flex-wrap: wrap; gap: .6rem .9rem; }
    .site-nav { order: 3; width: 100%; justify-content: space-between; margin: 0; flex-wrap: wrap; }
    .nav-dropdown { position: static; border: 0; box-shadow: none; padding: .2rem 0 .2rem .8rem; min-width: 0; }
    .search-box { margin-left: auto; }
    .search-box input { width: 130px; }
    .search-box kbd { display: none; }
    .article-row { flex-direction: column; align-items: flex-start; gap: .5rem; }
    .site-footer-inner { grid-template-columns: 1fr; gap: 1.5rem; }
    .pager { grid-template-columns: 1fr; }
    .pager-next { text-align: left; align-items: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .card, .syllabus-item { transition: none; }
}