/* ============================================================
   Учебный сайт Марченко Егора — biotech-минимализм
   Palette: off-white / mint / carbon
   Type: Fraunces display · Inter Tight body · JetBrains Mono meta
   ============================================================ */

:root {
    /* Основная палитра */
    --bg: #F5F2EC;
    --bg-elevated: #FAF8F3;
    --ink: #0A0A0A;
    --ink-soft: #2A2A28;
    --ink-muted: #6B6B65;
    --mint: #7FD1AE;
    --mint-deep: #4AAE85;
    --mint-wash: #E8F5EE;
    --line: #DDD7CB;
    --line-strong: #A8A39A;

    /* Шрифты */
    --font-display: 'Fraunces', 'Times New Roman', serif;
    --font-body: 'Inter Tight', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'SF Mono', Consolas, monospace;

    /* Интерьер */
    --radius: 2px;
    --radius-lg: 6px;
    --transition: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 600ms cubic-bezier(0.16, 1, 0.3, 1);

    /* Сетка */
    --container: 1200px;
    --gutter: clamp(1rem, 4vw, 3rem);
}

/* ============================================================
   Reset и база
   ============================================================ */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Sticky-навбар ~70px — компенсируем, чтобы якоря не уезжали под него */
:target,
section[id] {
    scroll-margin-top: 90px;
}

body {
    font-family: var(--font-body);
    font-weight: 400;
    font-size: 1rem;
    line-height: 1.65;
    color: var(--ink);
    background-color: var(--bg);
    min-height: 100vh;
    display: flex;
    flex-direction: column;

    /* Тонкая зернистая текстура как у печати */
    background-image:
        radial-gradient(circle at 1px 1px, rgba(10, 10, 10, 0.02) 1px, transparent 0);
    background-size: 20px 20px;
}

::selection {
    background-color: var(--mint);
    color: var(--ink);
}

/* ============================================================
   Типографика
   ============================================================ */
h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 500;
    letter-spacing: -0.02em;
    line-height: 1.05;
    color: var(--ink);
}

h1 {
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 400;
    font-variation-settings: 'SOFT' 50, 'WONK' 0, 'opsz' 144;
}

h2 {
    font-size: clamp(1.75rem, 3.5vw, 2.75rem);
    margin-bottom: 1rem;
    font-variation-settings: 'SOFT' 50, 'opsz' 72;
}

h3 {
    font-size: 1.4rem;
    font-weight: 500;
    margin-bottom: 0.6rem;
}

p {
    margin-bottom: 1em;
    max-width: 68ch;
}

em {
    font-family: var(--font-display);
    font-style: italic;
    font-weight: 400;
}

strong {
    font-weight: 600;
}

.mono {
    font-family: var(--font-mono);
    font-size: 0.85em;
    letter-spacing: -0.01em;
}

.eyebrow {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--ink-muted);
    margin-bottom: 1rem;
    display: inline-block;
}

.eyebrow::before {
    content: "◆ ";
    color: var(--mint-deep);
}

/* ============================================================
   Ссылки — без подчёркиваний, с анимированным акцентом
   ============================================================ */
a {
    color: inherit;
    text-decoration: none;
    position: relative;
    transition: color var(--transition);
}

a.inline-link {
    background-image: linear-gradient(var(--mint), var(--mint));
    background-size: 100% 0.15em;
    background-position: 0 92%;
    background-repeat: no-repeat;
    transition: background-size var(--transition), color var(--transition);
    padding: 0 1px;
}

a.inline-link:hover {
    background-size: 100% 100%;
    color: var(--ink);
}

/* ============================================================
   Контейнер
   ============================================================ */
.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 var(--gutter);
}

/* ============================================================
   Навигация
   ============================================================ */
.site-nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: rgba(245, 242, 236, 0.8);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--line);
    transition: border-color var(--transition);
}

.site-nav__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.1rem 0;
}

.site-nav__brand {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 500;
    letter-spacing: -0.02em;
}

.site-nav__links {
    display: flex;
    gap: 0.25rem;
    list-style: none;
    align-items: center;
}

.site-nav__link {
    font-family: var(--font-body);
    font-size: 0.88rem;
    font-weight: 500;
    padding: 0.55rem 0.95rem;
    border-radius: 999px;
    color: var(--ink-soft);
    transition: background-color var(--transition), color var(--transition);
    border: 1px solid transparent;
}

.site-nav__link:hover {
    background-color: var(--bg-elevated);
    color: var(--ink);
}

.site-nav__link--active {
    background-color: transparent;
    color: var(--ink);
    border-color: var(--ink);
}

.site-nav__link--active:hover {
    background-color: var(--ink);
    color: var(--bg);
}

/* Бургер — на мобилках */
.site-nav__toggle {
    display: none;
    background: transparent;
    border: 1px solid var(--line-strong);
    border-radius: 999px;
    padding: 0.5rem 0.8rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    cursor: pointer;
    color: var(--ink);
}

@media (max-width: 820px) {
    .site-nav__toggle { display: inline-block; }
    .site-nav__links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0.25rem;
        background-color: var(--bg-elevated);
        padding: 1rem var(--gutter);
        border-bottom: 1px solid var(--line);
        max-height: 0;
        overflow: hidden;
        transition: max-height 300ms ease, padding 300ms ease;
    }
    .site-nav__links.is-open {
        max-height: 500px;
        padding: 1rem var(--gutter);
    }
}

/* ============================================================
   Главное содержимое
   ============================================================ */
main {
    flex: 1;
    padding: clamp(3rem, 8vw, 6rem) 0 clamp(4rem, 10vw, 8rem);
}

/* ============================================================
   Hero — огромный заголовок с мета-данными
   ============================================================ */
.hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 2rem;
    margin-bottom: clamp(3rem, 6vw, 5rem);
    padding-bottom: clamp(2rem, 4vw, 3rem);
    border-bottom: 1px solid var(--line);
}

.hero__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--ink-muted);
    margin-bottom: 1.5rem;
}

.hero__meta span::before {
    content: "▸ ";
    color: var(--mint-deep);
}

.hero__title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 9vw, 7rem);
    font-weight: 300;
    line-height: 0.95;
    letter-spacing: -0.035em;
    color: var(--ink);
    font-variation-settings: 'SOFT' 100, 'WONK' 1, 'opsz' 144;
}

.hero__title em {
    font-style: italic;
    font-weight: 400;
    color: var(--mint-deep);
}

.hero__lede {
    font-family: var(--font-display);
    font-weight: 300;
    font-size: clamp(1.15rem, 2vw, 1.35rem);
    line-height: 1.45;
    color: var(--ink-soft);
    max-width: 60ch;
    margin-top: 1.5rem;
}

/* ============================================================
   Index cards — для списка разделов на главной
   ============================================================ */
.index-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1px;
    background-color: var(--line);
    border: 1px solid var(--line);
    margin: 2.5rem 0;
}

.index-card {
    display: block;
    background-color: var(--bg);
    padding: 2rem 1.8rem;
    position: relative;
    overflow: hidden;
    transition: background-color var(--transition), transform var(--transition);
    cursor: pointer;
    min-height: 180px;
}

.index-card:hover {
    background-color: var(--mint);
}

.index-card:hover .index-card__title {
    color: var(--ink);
}

.index-card:hover .index-card__desc {
    color: var(--ink-soft);
    opacity: 1;
}

.index-card:hover .index-card__num {
    color: var(--ink);
    opacity: 0.55;
}

.index-card:hover .index-card__arrow {
    color: var(--ink);
}

.index-card:active {
    transform: scale(0.99);
}

.index-card__num {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--ink-muted);
    letter-spacing: 0.15em;
    transition: color var(--transition);
}

.index-card__title {
    font-family: var(--font-display);
    font-size: 1.75rem;
    font-weight: 400;
    line-height: 1;
    margin: 2.5rem 0 0.6rem;
    letter-spacing: -0.02em;
    font-variation-settings: 'SOFT' 80, 'opsz' 72;
    transition: color var(--transition);
}

.index-card__desc {
    font-size: 0.9rem;
    line-height: 1.5;
    color: var(--ink-muted);
    max-width: none;
    margin: 0;
    transition: color var(--transition), opacity var(--transition);
}

.index-card__arrow {
    position: absolute;
    top: 1.8rem;
    right: 1.8rem;
    font-family: var(--font-mono);
    font-size: 1.1rem;
    transition: transform var(--transition);
}

.index-card:hover .index-card__arrow {
    transform: translate(4px, -4px);
}

/* ============================================================
   Content sections
   ============================================================ */
.section {
    margin: clamp(2.5rem, 5vw, 4rem) 0;
}

.section__head {
    display: flex;
    align-items: baseline;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--line);
}

.section__num {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--mint-deep);
    font-weight: 500;
    flex-shrink: 0;
}

.section h2 {
    margin-bottom: 0;
}

/* Аккордеон — раскрывающиеся блоки (details) */
details.collapsible {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    margin: 1rem 0;
    background-color: var(--bg-elevated);
    transition: border-color var(--transition), background-color var(--transition);
    overflow: hidden;
}

details.collapsible[open] {
    border-color: var(--ink);
    background-color: var(--bg);
}

details.collapsible > summary {
    padding: 1.2rem 1.5rem;
    cursor: pointer;
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 500;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    user-select: none;
    transition: color var(--transition);
}

details.collapsible > summary::-webkit-details-marker { display: none; }

details.collapsible > summary::after {
    content: "+";
    font-family: var(--font-mono);
    font-weight: 300;
    font-size: 1.6rem;
    line-height: 1;
    color: var(--ink-muted);
    transition: transform 300ms ease, color var(--transition);
    flex-shrink: 0;
}

details.collapsible[open] > summary::after {
    content: "−";
    color: var(--mint-deep);
}

details.collapsible > summary:hover {
    color: var(--mint-deep);
}

details.collapsible > .collapsible__body {
    padding: 0 1.5rem 1.5rem;
    animation: reveal 400ms ease;
}

@keyframes reveal {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   Список отчётов — карточки
   ============================================================ */
.report-list {
    list-style: none;
    display: grid;
    gap: 0;
    margin: 2rem 0;
    border-top: 1px solid var(--line);
}

.report-list__item {
    border-bottom: 1px solid var(--line);
    position: relative;
    overflow: hidden;
}

.report-list__link {
    display: grid;
    grid-template-columns: 60px 1fr auto;
    gap: 1.5rem;
    align-items: baseline;
    padding: 1.5rem 0.5rem;
    transition: padding var(--transition), color var(--transition);
}

.report-list__link::before {
    content: "";
    position: absolute;
    inset: 0;
    background-color: var(--mint-wash);
    transform: translateX(-100%);
    transition: transform var(--transition-slow);
    z-index: -1;
}

.report-list__link:hover::before {
    transform: translateX(0);
}

.report-list__link:hover {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}

.report-list__num {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--ink-muted);
    letter-spacing: 0.1em;
}

.report-list__title {
    font-family: var(--font-display);
    font-size: 1.35rem;
    font-weight: 500;
    line-height: 1.2;
    margin-bottom: 0.3rem;
}

.report-list__desc {
    font-size: 0.9rem;
    color: var(--ink-muted);
    max-width: none;
    margin: 0;
}

.report-list__arrow {
    font-family: var(--font-mono);
    color: var(--ink-muted);
    transition: transform var(--transition), color var(--transition);
}

.report-list__link:hover .report-list__arrow {
    transform: translateX(6px);
    color: var(--mint-deep);
}

.report-list__item--muted .report-list__link {
    color: var(--ink-muted);
    pointer-events: none;
    cursor: default;
}

.report-list__item--muted .report-list__title {
    font-weight: 400;
    font-style: italic;
}

/* ============================================================
   Card — универсальный блок
   ============================================================ */
.card {
    background-color: var(--bg-elevated);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: clamp(1.5rem, 3vw, 2.5rem);
    margin: 1.5rem 0;
    transition: border-color var(--transition), transform var(--transition);
}

.card--interactive {
    cursor: pointer;
}

.card--interactive:hover {
    border-color: var(--ink);
    transform: translateY(-2px);
}

/* ============================================================
   About-page
   ============================================================ */
.about-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: clamp(2rem, 5vw, 4rem);
    align-items: start;
}

@media (max-width: 720px) {
    .about-layout {
        grid-template-columns: 1fr;
    }
}

.avatar-frame {
    aspect-ratio: 1;
    border-radius: 50%;
    overflow: hidden;
    position: relative;
    background-color: var(--mint-wash);
    border: 1px solid var(--line);
    box-shadow:
        0 0 0 8px var(--bg),
        0 0 0 9px var(--line);
}

.avatar-frame img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
}

.about-meta {
    margin-top: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    line-height: 1.9;
    color: var(--ink-muted);
}

.about-meta__row {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.4rem 0;
    border-bottom: 1px dashed var(--line);
}

.about-meta__row strong {
    color: var(--ink);
    font-weight: 500;
}

/* ============================================================
   Обзор бактерии — специальные стили
   ============================================================ */
.review-toc {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 0.5rem;
    margin: 2rem 0 3rem;
    padding: 1.2rem;
    background-color: var(--bg-elevated);
    border: 1px solid var(--line);
    border-left: 3px solid var(--mint);
}

.review-toc a {
    display: block;
    padding: 0.6rem 0.8rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    border-radius: var(--radius);
    transition: background-color var(--transition), color var(--transition);
    color: var(--ink-soft);
}

.review-toc a:hover {
    background-color: var(--ink);
    color: var(--mint);
}

.review-toc a strong {
    display: block;
    font-family: var(--font-display);
    font-size: 1rem;
    font-weight: 500;
    margin-bottom: 0.15rem;
    color: var(--ink);
    transition: color var(--transition);
}

.review-toc a:hover strong {
    color: var(--bg);
}

/* Figures */
.fig {
    margin: 2rem 0;
    border: 1px solid var(--line);
    background-color: var(--bg-elevated);
    overflow: hidden;
    border-radius: var(--radius);
}

.fig__media {
    background-color: var(--mint-wash);
    padding: 2rem;
    text-align: center;
    min-height: 280px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--ink-muted);
    border-bottom: 1px solid var(--line);
}

.fig__media img {
    max-width: 100%;
    height: auto;
    display: block;
    margin: 0 auto;
}

.fig__placeholder {
    padding: 3rem 1rem;
    width: 100%;
    max-width: 500px;
    border: 2px dashed var(--line-strong);
    background-color: var(--bg);
    border-radius: var(--radius);
    text-align: center;
}

.fig__placeholder-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--mint-deep);
    font-family: var(--font-display);
    font-weight: 300;
}

.fig__placeholder-title {
    font-family: var(--font-display);
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--ink);
    margin-bottom: 0.4rem;
}

.fig__placeholder-note {
    font-size: 0.8rem;
    color: var(--ink-muted);
    line-height: 1.5;
}

.fig__caption {
    padding: 1rem 1.2rem;
    font-size: 0.85rem;
    line-height: 1.55;
    color: var(--ink-soft);
    display: flex;
    gap: 0.8rem;
    align-items: baseline;
}

.fig__caption-label {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--mint-deep);
    letter-spacing: 0.08em;
    flex-shrink: 0;
    text-transform: uppercase;
}

/* Таблицы */
.data-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    font-size: 0.9rem;
    background-color: var(--bg-elevated);
    border: 1px solid var(--line);
}

.data-table caption {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--ink-muted);
    text-align: left;
    padding: 0.8rem 1rem;
    border-bottom: 1px solid var(--line);
    background-color: var(--bg);
}

.data-table thead th {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--ink);
    text-align: left;
    padding: 0.75rem 1rem;
    border-bottom: 2px solid var(--ink);
    background-color: var(--bg);
}

.data-table tbody td {
    padding: 0.7rem 1rem;
    border-bottom: 1px solid var(--line);
    border-right: 1px solid var(--line);
    vertical-align: baseline;
}

.data-table tbody td:last-child {
    border-right: none;
}

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

.data-table tbody tr:hover td {
    background-color: var(--mint-wash);
}

.data-table .num {
    font-family: var(--font-mono);
    text-align: right;
    color: var(--ink-soft);
}

.data-table .aa-code {
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--mint-deep);
}

.data-table .bb-code {
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--ink-soft);
    background-color: var(--mint-wash);
}

.data-table .cc-code {
    font-family: var(--font-mono);
    font-weight: 600;
    color: var(--ink-soft);
}

/* Key stats */
.key-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1px;
    background-color: var(--line);
    border: 1px solid var(--line);
    margin: 2rem 0;
}

.key-stat {
    background-color: var(--bg);
    padding: 1.5rem 1.2rem;
}

.key-stat__value {
    font-family: var(--font-display);
    font-size: 2.25rem;
    font-weight: 400;
    line-height: 1;
    color: var(--ink);
    letter-spacing: -0.02em;
    font-variation-settings: 'opsz' 72;
}

.key-stat__value sup,
.key-stat__value small {
    font-size: 0.5em;
    color: var(--ink-muted);
    font-weight: 400;
}

.key-stat__label {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--ink-muted);
    margin-top: 0.5rem;
}

/* Pull quote */
.pull-quote {
    font-family: var(--font-display);
    font-weight: 300;
    font-size: 1.4rem;
    line-height: 1.35;
    padding: 1.8rem 2rem;
    margin: 2rem 0;
    border-left: 3px solid var(--mint);
    background-color: var(--mint-wash);
    color: var(--ink-soft);
    font-style: italic;
    letter-spacing: -0.01em;
}

.pull-quote::before {
    content: "";
    font-family: var(--font-display);
    font-size: 1.8em;
    line-height: 0;
    vertical-align: -0.4em;
    margin-right: 0.1em;
    color: var(--mint-deep);
}

/* Bullets */
.bullet-list {
    list-style: none;
    padding: 0;
    margin: 1rem 0;
}

.bullet-list li {
    position: relative;
    padding-left: 1.8rem;
    margin-bottom: 0.7rem;
    line-height: 1.6;
}

.bullet-list li::before {
    content: "→";
    position: absolute;
    left: 0;
    top: 0;
    color: var(--mint-deep);
    font-family: var(--font-mono);
    font-weight: 600;
}

.ref-list {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0;
    counter-reset: ref;
    font-size: 0.88rem;
    line-height: 1.5;
}

.ref-list li {
    counter-increment: ref;
    position: relative;
    padding-left: 2.5rem;
    margin-bottom: 0.8rem;
    color: var(--ink-soft);
}

.ref-list li::before {
    content: "[" counter(ref) "]";
    position: absolute;
    left: 0;
    top: 0;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--mint-deep);
    font-weight: 600;
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
    background-color: var(--ink);
    color: var(--bg);
    padding: clamp(3rem, 6vw, 5rem) 0 2rem;
    margin-top: auto;
}

.site-footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

@media (max-width: 720px) {
    .site-footer__grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
}

.site-footer__brand {
    font-family: var(--font-display);
    font-size: 2.5rem;
    font-weight: 300;
    letter-spacing: -0.02em;
    line-height: 1;
    margin-bottom: 1rem;
    font-variation-settings: 'SOFT' 100, 'opsz' 144;
}

.site-footer__tagline {
    color: rgba(245, 242, 236, 0.6);
    font-size: 0.9rem;
    max-width: 40ch;
    margin-top: 1rem;
}

.site-footer__col h4 {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-weight: 500;
    color: var(--mint);
    margin-bottom: 1rem;
}

.site-footer__col ul {
    list-style: none;
    padding: 0;
}

.site-footer__col li {
    margin-bottom: 0.5rem;
}

.site-footer__col a {
    color: rgba(245, 242, 236, 0.75);
    font-size: 0.9rem;
    transition: color var(--transition);
}

.site-footer__col a:hover {
    color: var(--mint);
}

.site-footer__bottom {
    padding-top: 1.5rem;
    border-top: 1px solid rgba(245, 242, 236, 0.1);
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: rgba(245, 242, 236, 0.5);
    text-align: center;
}

/* ============================================================
   Reveal-анимации на скролле
   ============================================================ */
/* Reveal — чистый CSS, без JS. Блок уже на месте, но мягко всплывает при загрузке. */
.reveal {
    animation: revealIn 500ms cubic-bezier(0.16, 1, 0.3, 1) both;
}

@keyframes revealIn {
    0% { opacity: 0; transform: translateY(12px); }
    100% { opacity: 1; transform: translateY(0); }
}

/* Ещё немного stagger для первых блоков */
.reveal:nth-of-type(1) { animation-delay: 60ms; }
.reveal:nth-of-type(2) { animation-delay: 120ms; }
.reveal:nth-of-type(3) { animation-delay: 180ms; }

/* Staggered reveal для hero */
.hero .eyebrow { animation: fadeInUp 700ms cubic-bezier(0.16, 1, 0.3, 1) both; }
.hero__meta { animation: fadeInUp 700ms cubic-bezier(0.16, 1, 0.3, 1) 100ms both; }
.hero__title { animation: fadeInUp 800ms cubic-bezier(0.16, 1, 0.3, 1) 200ms both; }
.hero__lede { animation: fadeInUp 700ms cubic-bezier(0.16, 1, 0.3, 1) 350ms both; }

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(24px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ============================================================
   Кнопки — прозрачные, с мятным хало
   ============================================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.8rem 1.4rem;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    border: 1px solid var(--ink);
    border-radius: 999px;
    background-color: transparent;
    color: var(--ink);
    cursor: pointer;
    transition: background-color var(--transition), color var(--transition), transform var(--transition);
    text-decoration: none;
}

.btn:hover {
    background-color: var(--ink);
    color: var(--bg);
}

.btn:active {
    transform: scale(0.97);
}

.btn--ghost {
    border-color: var(--line-strong);
    color: var(--ink-soft);
}

.btn--ghost:hover {
    background-color: var(--mint);
    border-color: var(--mint);
    color: var(--ink);
}

.btn__arrow {
    font-family: var(--font-mono);
    transition: transform var(--transition);
}

.btn:hover .btn__arrow {
    transform: translateX(3px);
}

/* ============================================================
   Print-friendly
   ============================================================ */
@media print {
    .site-nav, .site-footer, .review-toc {
        display: none;
    }
    body {
        background: white;
        color: black;
    }
}