/* ═════════════════════════════════════════════════
   UnbelievableFact.fun — «полевой журнал»
   Notebook design system. Deploy: 2026-07-16
   ═════════════════════════════════════════════════ */

/* Google Fonts loaded via <link> in base.html for non-blocking parallel fetch (LCP win) */

* { margin: 0; padding: 0; box-sizing: border-box; min-width: 0; }
html, body { overflow-x: hidden; max-width: 100%; }

:root {
    --paper: #f4efe6;
    --paper-2: #eee7d5;
    --paper-shadow: #d9d1bd;
    --polaroid: #fefdf9;
    --polaroid-edge: #f0ecdf;
    --tape: rgba(255, 220, 100, 0.55);
    --tape-edge: rgba(180, 140, 20, 0.22);
    --ink: #201d18;
    --ink-dim: #6a6560;
    --ink-red: #b73838;
    --ink-blue: #1e3a6b;
    --rule: #d6cbb1;
    --rule-strong: #baaf94;
    /* Backwards-compat variable names */
    --bg: #f4efe6;
    --surface: #fefdf9;
    --surface2: #eee7d5;
    --border: #d6cbb1;
    --accent: #b73838;
    --accent2: #1e3a6b;
    --text: #201d18;
    --muted: #6a6560;
    --radius: 6px;
}

body {
    font-family: 'PT Serif', Georgia, serif;
    background-color: var(--paper);
    color: var(--ink);
    min-height: 100vh;
    line-height: 1.55;
    font-size: 16px;
    background-image:
        linear-gradient(0deg, transparent calc(28px - 1px), rgba(186,175,148,0.28) 28px, transparent calc(28px + 1px)),
        linear-gradient(90deg, transparent calc(28px - 1px), rgba(186,175,148,0.16) 28px, transparent calc(28px + 1px));
    background-size: 28px 28px;
    background-attachment: fixed;
}
::selection { background: var(--ink-red); color: var(--paper); }

h1, h2, h3, h4, .display { font-family: 'Playfair Display', 'PT Serif', serif; }

/* ── HEADER ── */
header {
    border-bottom: 1px solid var(--rule);
    background: rgba(244,239,230,0.92);
    backdrop-filter: blur(6px);
    position: sticky;
    top: 0;
    z-index: 100;
}
.header-inner {
    max-width: 1180px;
    margin: 0 auto;
    padding: 1.1rem 2rem 0.85rem;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 1rem;
    flex-wrap: wrap;
}
.logo {
    font-family: 'Playfair Display', serif;
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--ink);
    letter-spacing: -0.01em;
    text-decoration: none;
    display: inline-block;
}
.logo span { color: var(--ink); font-weight: 700; }
.logo em {
    font-family: 'Caveat', cursive;
    font-style: normal;
    color: var(--ink-red);
    font-size: 1.15rem;
    font-weight: 700;
    transform: rotate(-3deg) translate(-4px, -4px);
    display: inline-block;
    margin-left: 0.25rem;
    vertical-align: baseline;
}
.header-meta {
    font-family: 'Caveat', cursive;
    color: var(--ink-dim);
    font-size: 1.15rem;
}

nav {
    border-top: 1px dashed var(--rule);
    padding: 0.85rem 2rem 0.95rem;
    background: rgba(244,239,230,0.55);
}
.nav-inner {
    max-width: 1180px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1.5rem;
    flex-wrap: wrap;
}
nav ul {
    list-style: none;
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}
nav ul a {
    color: var(--ink);
    text-decoration: none;
    font-family: 'Playfair Display', serif;
    font-size: 1.02rem;
    padding-bottom: 4px;
    position: relative;
    font-weight: 500;
}
nav ul a::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 2px;
    background: var(--ink-red);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .3s ease;
}
nav ul a:hover::after,
nav ul a.active::after { transform: scaleX(1); }

/* Викторина — sticky note hanging on a pushpin in top-left corner */
.nav-quiz {
    position: relative;
    width: 128px;
    height: 128px;
    background: linear-gradient(135deg, #fff090 0%, #ffd946 55%, #f5c130 100%);
    transform: rotate(10deg);
    transform-origin: top left;
    margin: 4px 4px 18px 12px;
    box-shadow:
        0 1px 3px rgba(60,50,30,0.16),
        0 14px 26px rgba(60,50,30,0.24),
        3px 4px 0 rgba(60,50,30,0.10);
    color: var(--ink);
    text-decoration: none;
    border: 1px solid rgba(180,140,20,0.30);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform .3s ease-out, box-shadow .2s;
    isolation: isolate;
    flex-shrink: 0;
}
.nav-quiz .qt-wrap {
    transform: rotate(-24deg);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.1rem;
    line-height: 1;
    text-align: center;
    padding-left: 4px;
}
.nav-quiz .qt {
    font-family: 'Caveat', cursive;
    font-weight: 700;
    font-size: 1.75rem;
    color: var(--ink);
    line-height: 0.95;
    letter-spacing: 0.01em;
    white-space: nowrap;
    text-shadow: 0 1px 0 rgba(255,255,255,0.4);
}
.nav-quiz .qt-sub {
    font-family: 'Caveat', cursive;
    font-weight: 500;
    font-size: 1.02rem;
    color: var(--ink-red);
    line-height: 1;
    white-space: nowrap;
}
.nav-quiz::before {
    content: '';
    position: absolute;
    top: 9px;
    left: 9px;
    width: 15px;
    height: 15px;
    background: radial-gradient(circle at 30% 30%, #ff9090 0%, #c53838 55%, #7a1f1f 100%);
    border-radius: 50%;
    box-shadow:
        0 2px 4px rgba(0,0,0,0.5),
        inset -1px -1px 2px rgba(0,0,0,0.35),
        inset 1px 1px 1.5px rgba(255,255,255,0.5);
    z-index: 2;
}
.nav-quiz::after {
    content: '';
    position: absolute;
    inset: 0;
    background:
        radial-gradient(circle at 18% 18%, rgba(255,255,255,0.30), transparent 42%),
        linear-gradient(180deg, transparent 60%, rgba(180,140,40,0.14) 100%);
    pointer-events: none;
}
.nav-quiz:hover {
    transform: rotate(3deg);
    box-shadow:
        0 3px 5px rgba(60,50,30,0.22),
        0 18px 34px rgba(60,50,30,0.28),
        4px 5px 0 rgba(60,50,30,0.12);
}
.nav-quiz:active {
    transform: rotate(12deg);
    box-shadow:
        0 1px 2px rgba(60,50,30,0.14),
        0 6px 12px rgba(60,50,30,0.18),
        1px 2px 0 rgba(60,50,30,0.10);
}

/* ── MAIN ── */
main { max-width: 1180px; margin: 0 auto; padding: 2rem 2rem 3rem; }

/* ── HERO — compact main-page ── */
.hero {
    text-align: center;
    padding: 1.5rem 0 2rem;
    max-width: 780px;
    margin: 0 auto 2.25rem;
}
.hero-badge {
    display: inline-block;
    font-family: 'Caveat', cursive;
    color: var(--ink-red);
    font-size: 1.3rem;
    transform: rotate(-1.5deg);
    margin-bottom: 0.5rem;
    padding: 0 0.5rem;
    background: none;
    border: none;
    letter-spacing: normal;
    text-transform: none;
    font-weight: 700;
    border-radius: 0;
}
.hero h1 {
    font-family: 'Playfair Display', serif;
    font-weight: 500;
    font-size: clamp(1.75rem, 5vw, 3rem);
    line-height: 1.1;
    color: var(--ink) !important;
    letter-spacing: -0.01em;
    margin-bottom: 1.25rem;
    background: none !important;
    -webkit-text-fill-color: var(--ink) !important;
    -webkit-background-clip: initial !important;
    background-clip: initial !important;
}
.hero h1 em, .hero h1 span.accent {
    font-style: italic;
    font-weight: 400;
    color: var(--ink-red);
}
.hero p {
    font-family: 'PT Serif', serif;
    font-size: 1.08rem;
    color: var(--ink-dim);
    max-width: 620px;
    margin: 0 auto;
    line-height: 1.55;
}
.hero-stats {
    display: flex;
    justify-content: center;
    gap: 3rem;
    flex-wrap: wrap;
    margin-top: 1.75rem;
    padding-top: 1.5rem;
    border-top: 1px dashed var(--rule);
}
.hero-stat {
    text-align: center;
    min-width: 90px;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.hero-stat strong {
    display: block;
    font-family: 'Playfair Display', serif;
    font-weight: 700;
    font-size: 1.75rem;
    color: var(--ink);
    font-feature-settings: 'tnum';
}
.hero-stat span {
    font-family: 'Caveat', cursive;
    font-size: 1.05rem;
    color: var(--ink-red);
    text-transform: none;
    letter-spacing: normal;
}

/* ── CATEGORIES ── */
.categories {
    display: flex;
    gap: 0.55rem;
    flex-wrap: wrap;
    margin-bottom: 2.5rem;
    padding-bottom: 1.25rem;
    border-bottom: 1px dashed var(--rule);
}
.cat-btn {
    padding: 0.5rem 1rem;
    background: var(--paper);
    border: 1.5px solid var(--ink);
    color: var(--ink);
    font-family: 'Playfair Display', serif;
    font-size: 0.92rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: 2px;
    text-decoration: none;
    transition: box-shadow .15s, transform .15s;
    box-shadow: 2px 2px 0 var(--paper-shadow);
}
.cat-btn:hover {
    transform: translate(-1px, -1px);
    box-shadow: 3px 3px 0 var(--paper-shadow);
}
.cat-btn.active {
    background: var(--ink);
    color: var(--paper);
    box-shadow: 2px 2px 0 var(--ink-red);
}
.cat-btn.active::before { content: '✓ '; color: var(--ink-red); }
.cat-btn.active:hover { box-shadow: 3px 3px 0 var(--ink-red); }
.cat-btn.mandela-filter { border-color: var(--ink-blue); color: var(--ink-blue); }
.cat-btn.mandela-filter:hover { box-shadow: 3px 3px 0 rgba(30,58,107,0.25); }
.cat-btn.mandela-filter.active { background: var(--ink-blue); color: var(--paper); box-shadow: 2px 2px 0 var(--ink-red); }

/* ── SECTION TITLE ── */
.section-title {
    font-family: 'Caveat', cursive;
    color: var(--ink-red);
    font-size: 1.85rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    display: flex;
    align-items: baseline;
    gap: 0.75rem;
}
.section-title::before { content: '— '; }
.section-title::after {
    content: '';
    flex: 1;
    height: 1px;
    background: var(--rule);
    margin-left: 0.5rem;
    align-self: center;
}

/* ── CAROUSEL ── */
.carousel-wrapper {
    position: relative;
    margin: 0 -0.5rem 2rem;
}
.facts-grid {
    display: flex;
    flex-wrap: nowrap;
    gap: 2.25rem;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
    scroll-behavior: smooth;
    padding: 1.5rem 0.5rem 2.5rem;
    -webkit-overflow-scrolling: touch;
}
.facts-grid::-webkit-scrollbar { display: none; }

.fact-card {
    flex: 0 0 300px;
    scroll-snap-align: start;
    text-decoration: none;
    color: var(--ink);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    background: transparent;
    border: none;
    border-radius: 0;
    overflow: visible;
    transition: transform .25s;
    position: relative;
}
.fact-card:nth-child(odd)  { transform: rotate(-0.8deg); }
.fact-card:nth-child(even) { transform: rotate(0.8deg); }
.fact-card:nth-child(5n)   { transform: rotate(1.4deg); }
.fact-card:nth-child(7n)   { transform: rotate(-1.4deg); }
.fact-card:hover { transform: rotate(0deg) translateY(-4px); }
.fact-card::before { content: none; }

/* fact-img — polaroid frame via border */
.fact-img, .fact-img-placeholder {
    height: 210px;
    background-color: var(--paper-2);
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    padding: 12px 12px 14px 12px;
    background-origin: content-box;
    background-clip: content-box;
    border: 12px solid var(--polaroid);
    border-bottom-width: 14px;
    box-shadow:
        0 10px 22px rgba(60,50,30,0.16),
        3px 3px 0 var(--paper-shadow),
        inset 0 0 0 1px var(--polaroid-edge);
    position: relative;
    filter: sepia(0.14) contrast(1.02) saturate(0.9);
}
.fact-img::after {
    content: '';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%) rotate(-2.5deg);
    width: 78px;
    height: 20px;
    background: var(--tape);
    border-top: 1px solid var(--tape-edge);
    border-bottom: 1px solid var(--tape-edge);
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}
.fact-card:nth-child(even) .fact-img::after {
    transform: translateX(-50%) rotate(2.5deg);
    width: 66px;
}
.fact-img-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
}

.fact-body {
    padding: 0.25rem 0.4rem 0.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}
.fact-meta {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 0.5rem;
    margin-bottom: 0;
}
.fact-category {
    font-family: 'Caveat', cursive;
    color: var(--ink-red);
    font-size: 1.15rem;
    transform: rotate(-1.5deg);
    display: inline-block;
    background: none;
    padding: 0;
    border-radius: 0;
    text-transform: none;
    letter-spacing: normal;
    font-weight: 700;
    text-decoration: none;
}
.fact-num {
    font-family: 'Playfair Display', serif;
    font-size: 0.82rem;
    color: var(--ink-dim);
    font-feature-settings: 'tnum';
    letter-spacing: 0.05em;
}
.fact-body p {
    font-family: 'Playfair Display', serif;
    font-weight: 500;
    font-size: 1.02rem;
    line-height: 1.35;
    color: var(--ink);
    flex: 1;
}
.fact-arrow {
    margin-top: 0.4rem;
    padding-top: 0.4rem;
    font-family: 'PT Serif', serif;
    font-style: italic;
    color: var(--ink-blue);
    font-size: 0.88rem;
    border-top: 1px dashed var(--rule);
    display: flex;
    align-items: center;
    gap: 0.3rem;
    transition: color .2s;
}
.fact-card:hover .fact-arrow { color: var(--ink-red); }

/* Mandela badge & card highlighting */
.mandela-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-family: 'Caveat', cursive;
    background: none;
    border: none;
    color: var(--ink-blue);
    font-size: 1.15rem;
    font-weight: 700;
    padding: 0;
    border-radius: 0;
    text-transform: none;
    letter-spacing: normal;
    transform: rotate(-1.5deg);
}
.fact-card[data-mandela="true"] .fact-img { box-shadow: 0 10px 22px rgba(30,58,107,0.16), 3px 3px 0 rgba(30,58,107,0.24), inset 0 0 0 1px var(--polaroid-edge); }
.fact-card[data-mandela="true"] .fact-category { color: var(--ink-blue); }

/* ── CAROUSEL ARROWS ── */
.carousel-arrow {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--polaroid);
    border: 1.5px solid var(--ink);
    color: var(--ink);
    font-family: 'Playfair Display', serif;
    font-size: 1.4rem;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 3px 3px 0 var(--ink);
    transition: transform .15s, box-shadow .15s, opacity .2s;
    opacity: 1;
    pointer-events: auto;
    padding: 0;
}
.carousel-arrow:hover {
    transform: translateY(-50%) translate(-1px, -1px);
    box-shadow: 4px 4px 0 var(--ink);
}
.carousel-arrow:active {
    transform: translateY(-50%) translate(2px, 2px);
    box-shadow: 1px 1px 0 var(--ink);
}
.carousel-arrow.prev { left: -24px; }
.carousel-arrow.next { right: -24px; }

/* ── SHOW MORE ── */
.show-more-btn {
    display: block;
    width: auto;
    margin: 1rem auto 0;
    padding: 0.9rem 2.2rem;
    background: var(--paper);
    border: 1.5px solid var(--ink);
    border-radius: 0;
    color: var(--ink);
    font-family: 'Playfair Display', serif;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    box-shadow: 3px 3px 0 var(--ink);
    transition: transform .15s, box-shadow .15s;
}
.show-more-btn:hover {
    background: var(--paper);
    border-color: var(--ink);
    color: var(--ink);
    transform: translate(-1px, -1px);
    box-shadow: 4px 4px 0 var(--ink);
}

/* ── FACT PAGE ── */
.fact-page { max-width: 780px; margin: 0 auto; padding: 1rem 0 2rem; }

.fact-page-header {
    margin: 0.75rem 0 0.75rem;
    display: flex;
    gap: 1.25rem;
    align-items: baseline;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--rule);
    flex-wrap: wrap;
}
.fact-page-header .fact-category {
    font-family: 'Caveat', cursive;
    color: var(--ink-red);
    font-size: 1.2rem;
    text-transform: none;
    letter-spacing: normal;
    font-weight: 700;
    transform: rotate(-1.5deg);
    display: inline-block;
}
.fact-page-header h1 {
    font-family: 'Playfair Display', serif;
    font-weight: 500;
    font-size: clamp(1.5rem, 3.5vw, 2.1rem);
    letter-spacing: -0.01em;
    line-height: 1.2;
    margin-top: 0.4rem;
    width: 100%;
    color: var(--ink);
}

.fact-hero-img {
    display: block;
    width: 100%;
    max-width: 460px;
    margin: 1.25rem auto 1.5rem;
    max-height: 360px;
    object-fit: cover;
    border: 14px solid var(--polaroid);
    border-bottom-width: 40px;
    border-radius: 0;
    box-shadow:
        0 12px 26px rgba(60,50,30,0.16),
        4px 4px 0 var(--paper-shadow),
        inset 0 0 0 1px var(--polaroid-edge);
    transform: rotate(-1.5deg);
    filter: sepia(0.14) contrast(1.02) saturate(0.9);
    transition: transform .3s;
    background: var(--paper-2);
}
.fact-hero-img:hover { transform: rotate(0deg) scale(1.02); }

.fact-detail-box {
    background: var(--polaroid);
    border: 1px solid var(--polaroid-edge);
    border-left: 3px solid var(--ink-red);
    border-radius: 0;
    padding: 1.25rem 1.5rem;
    margin: 1.25rem 0;
    color: var(--ink);
    line-height: 1.65;
    font-size: 1.02rem;
    font-family: 'PT Serif', serif;
    box-shadow: 3px 3px 0 var(--paper-shadow);
}

.fact-updated {
    margin: 1.25rem 0 0.5rem;
    font-family: 'Caveat', cursive;
    color: var(--ink-dim);
    font-size: 1.02rem;
    line-height: 1;
    text-align: right;
    transform: rotate(-0.5deg);
    display: inline-block;
    float: right;
}
.fact-updated time { font-style: normal; }
@media (max-width: 640px) {
    .fact-updated { font-size: 0.95rem; text-align: left; float: none; display: block; }
}

.fact-source { margin: 1rem 0; }
.fact-source a {
    color: var(--ink-blue);
    font-size: 0.9rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    font-family: 'PT Serif', serif;
    font-style: italic;
    border-bottom: 1px dashed rgba(30,58,107,0.35);
    padding-bottom: 1px;
}
.fact-source a:hover { color: var(--ink-red); border-bottom-color: var(--ink-red); }

.share-row {
    display: flex;
    gap: 0.6rem;
    margin: 1rem 0;
    flex-wrap: wrap;
}
.share-btn {
    background: var(--paper);
    border: 1.5px solid var(--ink);
    color: var(--ink);
    padding: 0.5rem 1rem;
    border-radius: 0;
    font-size: 0.88rem;
    cursor: pointer;
    transition: transform .15s, box-shadow .15s;
    font-family: 'Playfair Display', serif;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    text-decoration: none;
    box-shadow: 2px 2px 0 var(--paper-shadow);
}
.share-btn:hover {
    border-color: var(--ink);
    color: var(--ink);
    transform: translate(-1px, -1px);
    box-shadow: 3px 3px 0 var(--paper-shadow);
}

.btn-back {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    color: var(--ink-blue);
    text-decoration: none;
    font-size: 0.92rem;
    padding: 0.4rem 0.6rem;
    border-radius: 0;
    border: none;
    background: none;
    cursor: pointer;
    font-family: 'PT Serif', serif;
    font-style: italic;
}
.btn-back:hover { color: var(--ink-red); text-decoration: underline; }

/* ── GAME (compact mode: no header, back button) ── */
body.body-game > header { display: none; }
body.body-game > main { padding-top: 1rem; }

.back-to-notes {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Playfair Display', serif;
    font-size: 0.98rem;
    font-weight: 500;
    color: var(--ink);
    text-decoration: none;
    padding: 0.55rem 1rem 0.6rem 0.85rem;
    background: var(--polaroid);
    border: 1.5px solid var(--ink);
    box-shadow: 3px 3px 0 var(--paper-shadow);
    transition: transform .15s, box-shadow .15s;
    margin-bottom: 1.5rem;
}
.back-to-notes .btn-arrow {
    font-family: 'Caveat', cursive;
    color: var(--ink-red);
    font-size: 1.4rem;
    line-height: 0.8;
    font-weight: 700;
}
.back-to-notes:hover { transform: translate(-1px, -1px); box-shadow: 4px 4px 0 var(--paper-shadow); }
.back-to-notes:active { transform: translate(2px, 2px); box-shadow: 1px 1px 0 var(--paper-shadow); }

.game-section { max-width: 720px; margin: 0 auto; padding: 0.5rem 0 2rem; }
.game-header { text-align: center; margin-bottom: 2.5rem; }
.game-header h1 {
    font-family: 'Playfair Display', serif;
    font-size: clamp(2rem, 5vw, 2.8rem);
    font-weight: 500;
    letter-spacing: -0.01em;
    color: var(--ink);
    background: none;
    -webkit-background-clip: initial;
    -webkit-text-fill-color: currentColor;
    background-clip: initial;
}
.game-subtitle {
    color: var(--ink-dim);
    margin-top: 0.5rem;
    font-size: 1.05rem;
    font-family: 'PT Serif', serif;
    font-style: italic;
}

.game-progress-bar {
    background: var(--paper-2);
    border: 1px solid var(--rule);
    border-radius: 0;
    height: 6px;
    margin-bottom: 2rem;
    overflow: hidden;
}
.game-progress-fill {
    height: 100%;
    background: var(--ink-red);
    transition: width .4s ease;
}
.game-round-label {
    text-align: center;
    color: var(--ink-dim);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
    font-family: 'Caveat', cursive;
}
.game-round { display: flex; flex-direction: column; gap: 1rem; }

.game-btn {
    background: var(--polaroid);
    border: 1.5px solid var(--ink);
    border-radius: 0;
    padding: 1.3rem 1.5rem;
    color: var(--ink);
    font-size: 1rem;
    font-family: 'Playfair Display', serif;
    font-weight: 500;
    cursor: pointer;
    text-align: left;
    line-height: 1.5;
    transition: transform .15s, box-shadow .15s;
    box-shadow: 3px 3px 0 var(--paper-shadow);
    position: relative;
}
.game-btn::before { content: none; }
.game-btn:hover:not(:disabled) {
    transform: translate(-1px, -1px);
    box-shadow: 4px 4px 0 var(--paper-shadow);
    background: var(--polaroid);
}
.game-btn.correct {
    border-color: #3a7a3a;
    background: #eef7ea;
    color: #2a5a2a;
    box-shadow: 3px 3px 0 rgba(58,122,58,0.24);
}
.game-btn.wrong {
    border-color: var(--ink-red);
    background: #f9eeee;
    color: var(--ink-red);
    box-shadow: 3px 3px 0 rgba(183,56,56,0.24);
}
.game-btn:disabled { cursor: default; transform: none; }

.game-indicator {
    position: absolute;
    right: 1.2rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.3rem;
}

#game-result { text-align: center; padding: 2.5rem 0; }
.result-emoji { font-size: 4rem; margin-bottom: 1rem; }
#game-result h2 {
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--ink);
}
.result-sub {
    color: var(--ink-dim);
    margin-bottom: 2rem;
    font-family: 'PT Serif', serif;
    font-style: italic;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--ink);
    color: var(--paper);
    font-family: 'Playfair Display', serif;
    font-weight: 500;
    font-size: 0.98rem;
    padding: 0.75rem 1.75rem;
    border-radius: 0;
    text-decoration: none;
    transition: transform .15s, box-shadow .15s;
    border: 1.5px solid var(--ink);
    cursor: pointer;
    box-shadow: 3px 3px 0 var(--ink-red);
}
.btn-primary:hover {
    opacity: 1;
    transform: translate(-1px, -1px);
    box-shadow: 4px 4px 0 var(--ink-red);
    background: var(--ink);
}

/* ── UTILS ── */
.hidden { display: none !important; }
.empty {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--ink-dim);
    font-size: 1rem;
    font-family: 'PT Serif', serif;
    font-style: italic;
}

/* ── FOOTER ── */
footer {
    max-width: 1180px;
    margin: 5rem auto 0;
    padding: 2rem;
    text-align: center;
    color: var(--ink-dim);
    font-family: 'Caveat', cursive;
    font-size: 1.15rem;
    border-top: 1px solid var(--rule);
}

/* ── 404 PAGE ── */
.notfound-page {
    max-width: 780px;
    margin: 0 auto;
    padding: 1rem 0 3rem;
    text-align: center;
}
.notfound-hero { margin: 1rem 0 2rem; }
.notfound-code {
    font-family: 'Playfair Display', serif;
    font-weight: 900;
    font-size: clamp(4rem, 12vw, 7rem);
    line-height: 1;
    color: var(--ink-red);
    letter-spacing: -0.04em;
    margin-bottom: 0.5rem;
    text-shadow: 3px 3px 0 rgba(183, 56, 56, 0.14);
    transform: rotate(-1.5deg);
    display: inline-block;
}
.notfound-hero h1 {
    font-family: 'Playfair Display', serif;
    font-weight: 500;
    font-size: clamp(1.6rem, 4vw, 2.4rem);
    line-height: 1.2;
    color: var(--ink);
    margin-bottom: 1rem;
}
.notfound-hero p {
    font-family: 'PT Serif', serif;
    font-size: 1.08rem;
    color: var(--ink-dim);
    max-width: 560px;
    margin: 0 auto 1.5rem;
    line-height: 1.55;
}
.notfound-page .search-form { margin: 0 auto 2.5rem; }
.notfound-suggest {
    text-align: left;
    padding-top: 2rem;
    border-top: 1px dashed var(--rule);
    margin-top: 2rem;
}
.notfound-suggest .section-title { justify-content: flex-start; }
.notfound-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2.5rem;
    padding-top: 2rem;
    border-top: 1px dashed var(--rule);
    flex-wrap: wrap;
}
.notfound-cta .btn-primary.btn-alt {
    background: var(--paper);
    color: var(--ink);
    box-shadow: 3px 3px 0 var(--paper-shadow);
}
.notfound-cta .btn-primary.btn-alt:hover { box-shadow: 4px 4px 0 var(--paper-shadow); background: var(--paper); }
@media (max-width: 640px) {
    .notfound-code { font-size: 3.5rem; }
    .notfound-hero h1 { font-size: 1.4rem; }
}

/* ── SEARCH FORM ── */
.search-form {
    display: flex;
    gap: 0.5rem;
    max-width: 520px;
    margin: 1.75rem auto 0;
    padding: 0;
}
.search-form input {
    flex: 1;
    padding: 0.75rem 1rem;
    font-family: 'PT Serif', serif;
    font-size: 1.02rem;
    color: var(--ink);
    background: var(--polaroid);
    border: 1.5px solid var(--ink);
    border-radius: 0;
    box-shadow: 3px 3px 0 var(--paper-shadow);
    outline: none;
}
.search-form input:focus { box-shadow: 3px 3px 0 var(--ink-red); border-color: var(--ink); }
.search-form input::placeholder { color: var(--ink-dim); font-style: italic; }
.search-form button {
    padding: 0.75rem 1.4rem;
    font-family: 'Playfair Display', serif;
    font-size: 1rem;
    font-weight: 500;
    color: var(--paper);
    background: var(--ink);
    border: 1.5px solid var(--ink);
    box-shadow: 3px 3px 0 var(--ink-red);
    cursor: pointer;
    transition: transform .15s, box-shadow .15s;
}
.search-form button:hover { transform: translate(-1px, -1px); box-shadow: 4px 4px 0 var(--ink-red); }
.search-form button:active { transform: translate(2px, 2px); box-shadow: 1px 1px 0 var(--ink-red); }

/* SEARCH RESULTS HERO (compact when in search mode) */
.search-hero {
    max-width: 720px;
    margin: 0.5rem auto 2.5rem;
    padding: 1rem 0 1.5rem;
    text-align: center;
    border-bottom: 1px dashed var(--rule);
}
.search-hero .back-to-notes { margin-bottom: 1.25rem; }
.search-hero h1 {
    font-family: 'Playfair Display', serif;
    font-weight: 500;
    font-size: clamp(1.5rem, 3.5vw, 2.2rem);
    line-height: 1.2;
    color: var(--ink);
    margin-bottom: 1rem;
}
.search-hero h1 em {
    font-style: italic;
    color: var(--ink-red);
    font-feature-settings: 'tnum';
}

/* ── FACT-PAGE prev/next navigation (linear browsing → ПФ boost) ── */
.fact-nav {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin: 2.5rem 0 2rem;
    padding-top: 1.5rem;
    border-top: 1px dashed var(--rule);
}
.fact-nav-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: 1rem 1.15rem;
    background: var(--polaroid);
    border: 1px solid var(--paper-shadow);
    box-shadow: 3px 3px 0 var(--paper-shadow);
    text-decoration: none;
    color: var(--ink);
    transition: transform .15s, box-shadow .15s;
    min-height: 90px;
}
.fact-nav-item:hover { transform: translate(-1px, -1px); box-shadow: 4px 4px 0 var(--paper-shadow); }
.fact-nav-item.fact-nav-empty { visibility: hidden; }
.fact-nav-next { text-align: right; }
.fact-nav-label {
    font-family: 'Caveat', cursive;
    color: var(--ink-red);
    font-size: 1.05rem;
    line-height: 1;
    transform: rotate(-0.5deg);
    display: inline-block;
    align-self: flex-start;
}
.fact-nav-next .fact-nav-label { align-self: flex-end; transform: rotate(0.5deg); }
.fact-nav-num {
    font-family: 'Playfair Display', serif;
    font-size: 0.78rem;
    color: var(--ink-dim);
    letter-spacing: 0.05em;
    font-feature-settings: 'tnum';
}
.fact-nav-text {
    font-family: 'Playfair Display', serif;
    font-weight: 500;
    font-size: 0.98rem;
    line-height: 1.3;
    color: var(--ink);
    margin-top: 0.15rem;
}
@media (max-width: 640px) {
    .fact-nav { grid-template-columns: 1fr; gap: 0.75rem; }
    .fact-nav-next { text-align: left; }
    .fact-nav-next .fact-nav-label { align-self: flex-start; }
    .fact-nav-item { min-height: auto; }
    .fact-nav-item.fact-nav-empty { display: none; }
}

/* Focus ring */
:focus-visible { outline: 2px dashed var(--ink-red); outline-offset: 3px; }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    * { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
}

/* ══════════════════ RESPONSIVE ══════════════════ */

@media (max-width: 1024px) {
    main { padding: 1.5rem 1.5rem 3rem; }
    .fact-card { flex: 0 0 280px; }
    .facts-grid.grid-mode { grid-template-columns: repeat(2, 1fr); }
    .facts-grid.grid-mode .fact-card { flex: unset; }
    .hero h1 { font-size: clamp(1.8rem, 3.8vw, 2.4rem); }
}

@media (max-width: 780px) {
    .carousel-arrow { display: none !important; }
    .carousel-wrapper { margin: 0 -1rem; }
    .facts-grid { padding: 1rem 1rem 2rem; gap: 1.5rem; }
    .fact-card { flex: 0 0 calc(100vw - 4rem); }
}

@media (max-width: 640px) {
    .header-inner { padding: 0.85rem 1rem 0.7rem; gap: 0.5rem; flex-wrap: wrap; }
    nav { padding: 0.7rem 1rem 0.8rem; }
    .nav-inner { gap: 0.75rem; align-items: flex-start; }
    nav ul { gap: 1.25rem; padding-top: 0.35rem; }
    .logo { font-size: 1.15rem; }
    .logo em { font-size: 1rem; }
    .header-meta { font-size: 1rem; }
    .nav-quiz {
        width: 78px;
        height: 78px;
        margin: 2px 6px 12px 4px;
        transform: rotate(8deg);
    }
    .nav-quiz .qt-wrap { transform: rotate(-22deg); padding-left: 2px; }
    .nav-quiz .qt { font-size: 1.3rem; }
    .nav-quiz .qt-sub { font-size: 0.85rem; }
    .nav-quiz::before { top: 6px; left: 6px; width: 12px; height: 12px; }
    .nav-quiz:hover { transform: rotate(2deg); }
    .nav-quiz:active { transform: rotate(10deg); }

    main { padding: 1rem 1rem 2rem; }

    .hero { padding: 1rem 0.5rem 1rem; margin-bottom: 1.5rem; }
    .hero-badge { font-size: 1.05rem; margin-bottom: 0.35rem; }
    .hero h1 { font-size: 1.7rem; margin-bottom: 0.75rem; }
    .hero p { font-size: 0.98rem; }
    .hero-stats { gap: 1.5rem; margin-top: 1.25rem; padding-top: 1rem; }
    .hero-stat strong { font-size: 1.35rem; }
    .hero-stat span { font-size: 0.95rem; }

    .categories {
        flex-wrap: nowrap;
        overflow-x: auto;
        scrollbar-width: none;
        -webkit-overflow-scrolling: touch;
        gap: 0.45rem;
        padding-bottom: 0.6rem;
        margin-bottom: 1.5rem;
    }
    .categories::-webkit-scrollbar { display: none; }
    .cat-btn { flex-shrink: 0; font-size: 0.85rem; padding: 0.4rem 0.85rem; }

    .section-title { font-size: 1.5rem; }
    .section-title::after { display: none; }

    .facts-grid.grid-mode { grid-template-columns: 1fr; margin: 0; }
    .fact-img, .fact-img-placeholder { height: 190px; }

    .fact-page { padding: 0.75rem 0 1.5rem; }
    .fact-page-header h1 { font-size: 1.35rem; }
    .fact-hero-img { max-height: 260px; border-width: 10px; border-bottom-width: 30px; }
    .fact-detail-box { padding: 1rem 1.15rem; font-size: 0.95rem; }
    .share-row { gap: 0.4rem; }
    .share-btn { font-size: 0.8rem; padding: 0.4rem 0.75rem; }

    .game-section { padding: 1rem 0; }
    .game-header h1 { font-size: 1.6rem; }
    .game-btn { font-size: 0.94rem; padding: 1rem 1.15rem; }
    #game-result h2 { font-size: 1.5rem; }
    .result-emoji { font-size: 3rem; }

    footer { margin-top: 3rem; padding: 1.5rem 1rem; font-size: 1rem; }
}

@media (max-width: 380px) {
    .hero h1 { font-size: 1.45rem; }
    .fact-card { flex: 0 0 calc(100vw - 3rem); }
    nav ul { gap: 1rem; }
    nav ul a { font-size: 0.95rem; }
}

/* Grid mode (after Show More) */
.facts-grid.grid-mode {
    display: grid !important;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    overflow-x: visible;
    flex-wrap: unset;
    scroll-snap-type: none;
    padding: 1.5rem 0.5rem 2.5rem;
}
.facts-grid.grid-mode .fact-card { flex: unset; }

/* Articles list (not restyled — kept minimal for compat) */
.articles-list { max-width: 1140px; margin: 0 auto; padding: 1.5rem 0; }
.articles-title { font-family: 'Playfair Display', serif; font-size: 2rem; font-weight: 700; margin-bottom: 0.4rem; }
.articles-subtitle { color: var(--ink-dim); margin-bottom: 2rem; }
.articles-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 1.25rem; }
.article-card {
    background: var(--polaroid);
    border: 1px solid var(--paper-shadow);
    box-shadow: 3px 3px 0 var(--paper-shadow);
    overflow: hidden;
    text-decoration: none;
    color: inherit;
    display: flex;
    flex-direction: column;
    transition: transform .15s, box-shadow .15s;
}
.article-card:hover { transform: translate(-2px, -2px); box-shadow: 5px 5px 0 var(--paper-shadow); }
.article-img { height: 180px; background-size: cover; background-position: center; }
.article-body { padding: 1.25rem; flex: 1; display: flex; flex-direction: column; gap: 0.5rem; }
.article-body h2 { font-family: 'Playfair Display', serif; font-size: 1.05rem; font-weight: 600; line-height: 1.35; }
.article-body p { color: var(--ink-dim); font-size: 0.9rem; line-height: 1.5; flex: 1; font-family: 'PT Serif', serif; }

.article-page { max-width: 780px; margin: 0 auto; padding: 1.25rem 0 2rem; }
.article-header h1 { font-family: 'Playfair Display', serif; font-size: clamp(1.5rem, 3.5vw, 2rem); font-weight: 500; line-height: 1.25; margin: 0.4rem 0 0.5rem; }
.article-lead { color: var(--ink-dim); font-size: 1rem; font-family: 'PT Serif', serif; font-style: italic; }
.article-content { line-height: 1.75; font-size: 1rem; color: var(--ink); font-family: 'PT Serif', serif; }
.article-content h2 { font-family: 'Playfair Display', serif; font-size: 1.3rem; font-weight: 600; margin: 1.5rem 0 0.75rem; color: var(--ink); }
.article-content p { margin-bottom: 0.9rem; }
.article-content ul { padding-left: 1.5rem; margin-bottom: 0.9rem; }
.article-content li { margin-bottom: 0.4rem; }

/* Interesting-block minor restyle to fit paper */
.interesting-block {
    background: var(--polaroid);
    border: 1px solid var(--paper-shadow);
    box-shadow: 3px 3px 0 var(--paper-shadow);
    padding: 1.25rem 1.5rem;
    margin: 2rem 0 1rem;
}
.interesting-title { font-family: 'Playfair Display', serif; font-size: 1.1rem; font-weight: 600; margin-bottom: 0.4rem; }
.interesting-lead { color: var(--ink-dim); font-size: 0.9rem; margin-bottom: 1rem; font-style: italic; font-family: 'PT Serif', serif; }
.interesting-grid { display: flex; flex-wrap: wrap; gap: 0.75rem; }
.interesting-card {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    background: var(--paper);
    border: 1px solid var(--rule);
    border-radius: 0;
    padding: 0.6rem 1rem;
    text-decoration: none;
    color: var(--ink);
    font-size: 0.92rem;
    flex: 1 1 180px;
    transition: border-color .2s, background .2s;
    font-family: 'PT Serif', serif;
}
.interesting-card:hover { border-color: var(--ink-red); background: var(--paper-2); }
.interesting-domain { font-weight: 600; color: var(--ink); }
.interesting-cta { color: var(--ink-red); font-size: 0.85rem; white-space: nowrap; font-family: 'Caveat', cursive; font-size: 1.05rem; }

@media (max-width: 640px) {
    .articles-grid { grid-template-columns: 1fr; }
    .interesting-grid { flex-direction: column; }
    .interesting-card { flex: 1 1 auto; }
}

/* Age gate stays functional but adapted (18+ modal) */
#age-gate { position: fixed; inset: 0; z-index: 9999; background: rgba(30,25,20,0.85); display: flex; align-items: center; justify-content: center; padding: 1.5rem; backdrop-filter: blur(8px); }
.ag-box { background: var(--polaroid); border: 1px solid var(--paper-shadow); box-shadow: 0 24px 60px rgba(30,25,20,0.5); padding: 2.5rem 2rem; max-width: 420px; width: 100%; text-align: center; }
.ag-icon { font-size: 3rem; margin-bottom: 1rem; }
.ag-box h2 { font-family: 'Playfair Display', serif; font-size: 1.5rem; font-weight: 700; margin-bottom: 0.75rem; color: var(--ink); }
.ag-box p { color: var(--ink-dim); font-size: 0.94rem; line-height: 1.55; margin-bottom: 1.5rem; font-family: 'PT Serif', serif; }
.ag-btns { display: flex; gap: 0.75rem; margin-bottom: 1.25rem; }
.ag-yes { flex: 1; padding: 0.85rem 1rem; background: var(--ink); color: var(--paper); font-family: 'Playfair Display', serif; font-weight: 600; font-size: 0.98rem; border: 1.5px solid var(--ink); cursor: pointer; box-shadow: 3px 3px 0 var(--ink-red); transition: transform .15s; }
.ag-yes:hover { transform: translate(-1px, -1px); }
.ag-no { flex: 1; padding: 0.85rem 1rem; background: var(--paper); color: var(--ink-dim); font-family: 'Playfair Display', serif; font-weight: 500; font-size: 0.98rem; border: 1.5px solid var(--rule); cursor: pointer; }
.ag-no:hover { background: var(--paper-2); }
.ag-warn { font-size: 0.78rem !important; color: var(--ink-dim) !important; margin: 0 !important; font-family: 'PT Serif', serif; font-style: italic; }

@media (max-width: 480px) {
    .ag-box { padding: 2rem 1.25rem; }
    .ag-btns { flex-direction: column; }
}