:root {
    --ink: #0BA8A2;
    --ink-2: #0ad1c9;
    --paper: #EAF8F7;
    --paper-2: #FFFFFF;
    --gold: #0ad1c9;
    --vermillion: #ef4056;
    --text-on-ink: #FFFFFF;
    --text-muted-on-ink: #d6eeec;
    --text-on-paper: #000000;
    --text-muted-on-paper: #3d4a49;
    --radius: 14px;
    --serif: "PT Serif", Georgia, serif;
    --sans: "Golos Text", "Segoe UI", sans-serif;
    --mono: "JetBrains Mono", monospace;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--sans);
    background: var(--paper);
    color: var(--text-on-paper);
    line-height: 1.5;
    overflow-x: hidden;
}

img,
svg {
    display: block;
    max-width: 100%;
}

a {
    color: inherit;
    text-decoration: none;
}

.container {
    width: 100%;
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 28px;
}

.eyebrow {
    font-family: var(--mono);
    font-size: 12.5px;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    font-weight: 500;
}

/* ---------- Header (идентичен макету, добавлены Библиотека и Кабинет) ---------- */
header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(246, 243, 234, 0.92);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid rgba(32, 35, 63, 0.08);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 28px;
    gap: 24px;
}

.logo {
    font-family: var(--serif);
    font-weight: 700;
    font-size: 21px;
    display: flex;
    align-items: center;
    gap: 9px;
}

.logo-mark {
    height: 34px;
    width: auto;
    flex-shrink: 0;
}

.footer-logo-mark {
    height: 26px;
    width: auto;
    filter: brightness(0) invert(1);
}

.nav-links {
    display: flex;
    gap: 30px;
    font-size: 14.5px;
    font-weight: 500;
    flex: 1;
}

.nav-links a {
    opacity: 0.78;
    transition: opacity .2s;
}

.nav-links a:hover,
.nav-links a.current {
    opacity: 1;
}

.nav-links a.current {
    color: var(--vermillion);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-shrink: 0;
}

.cabinet-link {
    display: flex;
    align-items: center;
    gap: 7px;
    font-size: 14.5px;
    font-weight: 600;
    opacity: 0.85;
}

.cabinet-link:hover {
    opacity: 1;
}

.cabinet-link svg {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
}

.nav-cta {
    font-family: var(--sans);
    font-weight: 600;
    font-size: 14px;
    background: var(--ink);
    color: var(--text-on-ink);
    padding: 10px 20px;
    border-radius: 999px;
    white-space: nowrap;
    transition: background .2s;
}

.nav-cta:hover {
    background: var(--vermillion);
}

.btn {
    font-family: var(--sans);
    font-weight: 600;
    font-size: 15px;
    padding: 14px 26px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: transform .18s ease, background .18s ease, box-shadow .18s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--vermillion);
    color: #FFF6EC;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px -8px rgba(193, 66, 27, 0.55);
}

.btn-outline {
    background: transparent;
    color: var(--ink);
    border: 1.5px solid rgba(32, 35, 63, 0.25);
}

.btn-outline:hover {
    border-color: var(--vermillion);
    color: var(--vermillion);
}

/* ---------- Intro ---------- */
.lib-intro {
    padding: 72px 0 40px;
}

.lib-intro .eyebrow {
    color: var(--vermillion);
    margin-bottom: 16px;
    display: block;
}

.lib-intro h1 {
    font-family: var(--serif);
    font-weight: 700;
    font-size: clamp(32px, 4.4vw, 48px);
    line-height: 1.08;
    margin-bottom: 18px;
    max-width: 720px;
}

.lib-intro p {
    color: var(--text-muted-on-paper);
    font-size: 17px;
    max-width: 560px;
}

/* ---------- Фильтры ---------- */
.filter-bar {
    position: sticky;
    top: 67px;
    z-index: 40;
    background: rgba(234, 248, 247, 0.94);
    backdrop-filter: blur(6px);
    padding: 18px 0;
    border-bottom: 1px solid rgba(32, 35, 63, 0.08);
    margin-bottom: 8px;
}

.filter-row {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.filter-pill {
    font-family: var(--sans);
    font-size: 13.5px;
    font-weight: 600;
    padding: 9px 18px;
    border-radius: 999px;
    border: 1.5px solid rgba(32, 35, 63, 0.16);
    color: var(--text-muted-on-paper);
    cursor: pointer;
    transition: all .2s ease;
    background: var(--paper-2);
}

.filter-pill:hover {
    border-color: var(--ink);
}

.filter-pill.active {
    background: var(--ink);
    border-color: var(--ink);
    color: #fff;
}

/* ---------- Лента (свиток рукописей) ---------- */
.feed {
    max-width: 640px;
    margin: 0 auto;
    padding: 48px 0 100px;
    position: relative;
}

.feed::before {
    content: "";
    position: absolute;
    left: 20px;
    top: 8px;
    bottom: 40px;
    width: 1px;
    background: repeating-linear-gradient(180deg, rgba(32, 35, 63, 0.16) 0 6px, transparent 6px 12px);
}

.feed-item {
    position: relative;
    padding-left: 56px;
    margin-bottom: 40px;
}

.feed-item:last-child {
    margin-bottom: 0;
}

.feed-dot {
    position: absolute;
    left: 14px;
    top: 34px;
    width: 13px;
    height: 13px;
    border-radius: 50%;
    background: var(--paper);
    border: 2px solid var(--vermillion);
}

.feed-card {
    position: relative;
    background: var(--paper-2);
    border-radius: var(--radius);
    padding: 26px 28px 22px;
    box-shadow: 0 20px 40px -22px rgba(22, 26, 51, 0.35);
}

.feed-item:nth-child(even) .feed-card {
    transform: rotate(-0.6deg);
}

.feed-item:nth-child(odd) .feed-card {
    transform: rotate(0.5deg);
}

.feed-card::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: var(--radius);
    background: repeating-linear-gradient(180deg, transparent 0 34px, rgba(32, 35, 63, 0.055) 34px 35px);
    pointer-events: none;
}

.feed-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 14px;
}

.feed-tag {
    display: flex;
    align-items: center;
    gap: 8px;
    font-family: var(--mono);
    font-size: 11px;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--vermillion);
}

.feed-tag svg {
    width: 15px;
    height: 15px;
    flex-shrink: 0;
}

.feed-date {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--text-muted-on-paper);
    opacity: 0.7;
    white-space: nowrap;
}

.feed-text {
    font-family: var(--serif);
    font-style: italic;
    font-size: 19px;
    line-height: 1.6;
    margin-bottom: 16px;
}

.feed-bottom {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.feed-author {
    font-family: var(--mono);
    font-size: 12px;
    color: var(--text-muted-on-paper);
}

.feed-share {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 12px;
    color: var(--text-muted-on-paper);
    opacity: 0.8;
    transition: opacity .2s;
}

.feed-share:hover {
    opacity: 1;
    color: var(--ink);
}

.feed-share svg {
    width: 15px;
    height: 15px;
}

.feed-cta {
    max-width: 640px;
    margin: 0 auto 100px;
    text-align: center;
    padding: 44px 28px;
    border: 1.5px dashed rgba(32, 35, 63, 0.2);
    border-radius: var(--radius);
}

.feed-cta p {
    color: var(--text-muted-on-paper);
    margin-bottom: 18px;
    font-size: 15px;
}

.cta-band {
    background: var(--paper-2);
    border-radius: 24px;
    padding: 64px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-band h2 {
    font-family: var(--serif);
    font-size: clamp(28px, 4vw, 40px);
    margin-bottom: 16px;
}

.cta-band p {
    color: var(--text-muted-on-paper);
    max-width: 520px;
    margin: 0 auto 32px;
    font-size: 16px;
}

.cta-actions {
    display: flex;
    gap: 14px;
    justify-content: center;
    flex-wrap: wrap;
}

footer {
    background: var(--ink);
    color: var(--text-muted-on-ink);
    padding: 56px 0 32px;
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    padding-bottom: 36px;
    margin-bottom: 28px;
    border-bottom: 1px solid rgba(237, 233, 218, 0.12);
    flex-wrap: wrap;
    gap: 24px;
}

.footer-links {
    display: flex;
    gap: 48px;
    flex-wrap: wrap;
}

.footer-links h4 {
    font-family: var(--mono);
    font-size: 11.5px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 14px;
    font-weight: 500;
}

.footer-links ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 9px;
    font-size: 14px;
}

.footer-links a:hover {
    color: var(--text-on-ink);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    font-size: 12.5px;
    flex-wrap: wrap;
    gap: 12px;
}

.reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity .6s ease, transform .6s ease;
}

.reveal.in {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }

    html {
        scroll-behavior: auto;
    }

    .feed-item:nth-child(even) .feed-card,
    .feed-item:nth-child(odd) .feed-card {
        transform: none;
    }
}

@media (max-width:920px) {
    .nav-links {
        display: none;
    }
}

@media (max-width:560px) {
    .lib-intro {
        padding: 48px 0 28px;
    }

    section,
    .feed {
        padding-left: 0;
        padding-right: 0;
    }

    .feed {
        padding: 36px 0 64px;
    }

    .feed-item {
        padding-left: 44px;
    }

    .feed::before {
        left: 16px;
    }

    .feed-dot {
        left: 10px;
    }

    .feed-card {
        padding: 20px 20px 18px;
    }

    .feed-item:nth-child(even) .feed-card,
    .feed-item:nth-child(odd) .feed-card {
        transform: none;
    }

    .cta-band {
        padding: 40px 24px;
    }
}