/* ============================================================
   Hafo Knihy — design system
   ============================================================ */

:root {
    /* Palette */
    --color-bg: #FAF8FC;
    --color-bg-elev: #FFFFFF;
    --color-surface: #F3EEF9;
    --color-border: #E5DDF1;
    --color-text: #1F1B2D;
    --color-text-muted: #6B6680;
    --color-text-subtle: #9892A8;
    --color-primary: #6D28D9;
    --color-primary-hover: #7C3AED;
    --color-primary-soft: #EDE4FB;
    --color-accent: #A78BFA;
    --color-accent-deep: #4C1D95;
    --color-warning: #F59E0B;
    --color-danger: #E11D48;

    /* Type */
    --font-sans: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
    --font-serif: 'Crimson Pro', 'Georgia', serif;

    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 40px;
    --space-2xl: 64px;

    /* Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Shadow */
    --shadow-sm: 0 1px 2px rgba(31, 27, 45, 0.06);
    --shadow-md: 0 4px 16px rgba(109, 40, 217, 0.08);
    --shadow-lg: 0 16px 40px rgba(109, 40, 217, 0.15);

    /* Container */
    --container: 1240px;

    /* Transitions */
    --t-fast: 120ms ease;
    --t-base: 220ms ease;
}

/* ============================================================
   Reset & base
   ============================================================ */

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

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background: var(--color-bg);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: color var(--t-fast); }
a:hover { color: var(--color-primary-hover); }
button { font-family: inherit; cursor: pointer; }
ul { padding: 0; margin: 0; list-style: none; }
hr { border: 0; height: 1px; background: var(--color-border); margin: var(--space-lg) 0; }

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-serif);
    font-weight: 600;
    line-height: 1.2;
    margin: 0 0 var(--space-md);
    color: var(--color-text);
    letter-spacing: -0.01em;
}
h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.1rem; }
h6 { font-size: 1rem; font-family: var(--font-sans); }

p { margin: 0 0 var(--space-md); }
.text-muted { color: var(--color-text-muted); }
.text-subtle { color: var(--color-text-subtle); }
.small { font-size: 0.875rem; }

/* ============================================================
   Layout
   ============================================================ */

.container {
    width: 100%;
    max-width: var(--container);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

.section { padding: var(--space-2xl) 0; }
.section-sm { padding: var(--space-xl) 0; }

.row { display: flex; flex-wrap: wrap; gap: var(--space-lg); }

/* ============================================================
   Header
   ============================================================ */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    padding: var(--space-md) 0;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--color-text);
    font-family: var(--font-serif);
    font-weight: 700;
    font-size: 1.5rem;
    letter-spacing: -0.02em;
    white-space: nowrap;
}
.site-logo__text {
    display: inline-block;
    line-height: 1.05;
}
.site-logo:hover { color: var(--color-primary); }
.site-logo__mark {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 50px;
    background: #844ED8;
    margin: 0 10px 0 10px;
    -ms-transform: rotate(-10deg);
    transform: rotate(-10deg);
    -webkit-transform-origin: 50% 50%;
    transform-origin: 50% 50%;
}
.site-logo__mark-top {
    display: block;
    background-color: #6D28D9;
    height: 17px;
}
.site-logo__mark-icon {
    position: absolute;
    left: 0;
    right: 0;
    top: 17px;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 18px;
}

.site-search { flex: 1; max-width: 560px; }
.site-search__form { position: relative; }
.site-search__input {
    width: 100%;
    height: 44px;
    padding: 0 48px 0 var(--space-md);
    background: var(--color-surface);
    border: 1px solid transparent;
    border-radius: 999px;
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--color-text);
    transition: border-color var(--t-base), background var(--t-base);
}
.site-search__input:focus {
    outline: none;
    background: #fff;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 4px var(--color-primary-soft);
}
.site-search__btn {
    position: absolute;
    right: 4px;
    top: 4px;
    width: 36px;
    height: 36px;
    border: 0;
    background: var(--color-primary);
    color: #fff;
    border-radius: 50%;
    display: grid;
    place-items: center;
    transition: background var(--t-fast);
}
.site-search__btn:hover { background: var(--color-primary-hover); }

.site-nav { display: flex; align-items: center; gap: var(--space-md); }
.site-nav__link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--color-text);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    transition: background var(--t-fast), color var(--t-fast);
}
.site-nav__link:hover { background: var(--color-primary-soft); color: var(--color-primary); }
.site-nav__badge {
    background: var(--color-primary);
    color: #fff;
    border-radius: 999px;
    padding: 1px 7px;
    font-size: 0.7rem;
    margin-left: 4px;
}

.site-user { position: relative; }
.site-user__dropdown {
    position: absolute;
    right: 0;
    top: calc(100% + 8px);
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    min-width: 180px;
    padding: 6px;
    box-shadow: var(--shadow-md);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--t-fast), visibility 0s linear var(--t-fast);
}
.site-user__dropdown::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    top: -12px;
    height: 12px;
}
.site-user:hover .site-user__dropdown,
.site-user:focus-within .site-user__dropdown {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transition-delay: 0s;
}
.site-user__dropdown a {
    display: block;
    padding: 8px 12px;
    color: var(--color-text);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
}
.site-user__dropdown a:hover { background: var(--color-primary-soft); color: var(--color-primary); }

/* Left-aligned variant (used by the main "Menu" dropdown). */
.site-user__dropdown--left { left: 0; right: auto; }

/* Menu dropdown items: icon + label + optional count badge in one row. */
.site-menu .site-user__dropdown a {
    display: flex;
    align-items: center;
    gap: 8px;
}
.site-menu .site-user__dropdown a > i { width: 18px; text-align: center; }
.site-menu .site-user__dropdown a .site-nav__badge { margin-left: auto; }

/* ============================================================
   Hero
   ============================================================ */

.hero {
    position: relative;
    padding: var(--space-2xl) 0;
    background: linear-gradient(135deg, var(--color-primary-soft) 0%, #F8F2FE 60%, #FAF8FC 100%);
    overflow: hidden;
}
.hero::before {
    content: '';
    position: absolute;
    top: -120px;
    right: -120px;
    width: 360px;
    height: 360px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--color-accent) 0%, transparent 70%);
    opacity: 0.35;
    pointer-events: none;
}
.hero__inner { position: relative; max-width: 720px; }
.hero__eyebrow {
    display: inline-block;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.78rem;
    font-weight: 600;
    color: var(--color-primary);
    background: rgba(255, 255, 255, 0.7);
    padding: 6px 12px;
    border-radius: 999px;
    margin-bottom: var(--space-md);
}
.hero__title {
    font-size: clamp(2.2rem, 4.5vw, 3.6rem);
    margin-bottom: var(--space-md);
    color: var(--color-text);
}
.hero__title em { color: var(--color-primary); font-style: italic; }
.hero__lead {
    font-size: 1.15rem;
    color: var(--color-text-muted);
    max-width: 560px;
    margin-bottom: var(--space-lg);
}
.hero__search { max-width: 520px; }

/* ============================================================
   Buttons
   ============================================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border: 1px solid transparent;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    cursor: pointer;
    transition: background var(--t-base), color var(--t-base), border-color var(--t-base), transform var(--t-fast);
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-hover); color: #fff; }
.btn-outline { background: transparent; color: var(--color-primary); border-color: var(--color-primary); }
.btn-outline:hover { background: var(--color-primary); color: #fff; }
.btn-ghost { background: var(--color-primary-soft); color: var(--color-primary); }
.btn-ghost:hover { background: var(--color-accent); color: #fff; }
.btn-block { width: 100%; }

/* ============================================================
   Section header
   ============================================================ */

.section-title {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: var(--space-lg);
    gap: var(--space-md);
}
.section-title h2 {
    margin: 0;
    font-size: 1.85rem;
    position: relative;
    padding-bottom: 8px;
}
.section-title h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 56px;
    height: 3px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
    border-radius: 999px;
}
.section-title__link {
    color: var(--color-primary);
    font-weight: 500;
    font-size: 0.9rem;
}

/* ============================================================
   Genre chips
   ============================================================ */

.genre-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: var(--space-md);
}
.genre-chip {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: var(--space-md) var(--space-lg);
    background: var(--color-bg-elev);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    transition: transform var(--t-base), border-color var(--t-base), box-shadow var(--t-base);
}
.genre-chip:hover {
    transform: translateY(-3px);
    border-color: var(--color-accent);
    box-shadow: var(--shadow-md);
    color: var(--color-text);
}
.genre-chip__name {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text);
}
.genre-chip__count {
    font-size: 0.82rem;
    color: var(--color-text-muted);
}

/* Author detail — genre chips row */
.author-genres {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    max-width: 60%;
}
.author-genres__chip {
    flex-direction: row;
    align-items: center;
    gap: 0.3rem;
    padding: 0.3rem 0.7rem;
    font-size: 0.85rem;
    white-space: nowrap;
}
.author-genres__count { opacity: 0.7; }

@media (max-width: 767px) {
    .author-genres {
        max-width: 100%;
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: thin;
        padding-bottom: 4px;
    }
    .author-genres__chip { flex-shrink: 0; }
}

/* ============================================================
   Book card
   ============================================================ */

.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: var(--space-lg);
}

/* ── Mobilní „app-like" homepage ─────────────────────────────────
   Hero se skrývá, procházení žánrů/nálad se sbaluje za tlačítko a
   náhledy knih jsou menší (2 na řádek). */
.hp-browse-bar { display: none; }
.hp-browse-toggle { display: none; }
.hp-browse-toggle__caret { margin-left: auto; transition: transform .18s ease; }
.hp-browse-toggle[aria-expanded="true"] .hp-browse-toggle__caret { transform: rotate(180deg); }

@media (max-width: 767px) {
    .hero { display: none; }

    .hp-browse-bar { display: block; margin-top: var(--space-md, 1rem); }
    .hp-browse-toggle {
        display: flex;
        align-items: center;
        gap: .6rem;
        width: 100%;
        padding: .85rem 1rem;
        border: 1px solid var(--color-border, #e6e2dc);
        border-radius: 12px;
        background: #fff;
        color: var(--color-text, #2a2422);
        font-size: .95rem;
        font-weight: 600;
        cursor: pointer;
    }
    .hp-browse { display: none; }
    .hp-browse.is-open { display: block; }

    /* Menší náhledy knih → 2 na řádek. */
    .books-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-md, 1rem);
    }
    .book-card__body { padding: .6rem .7rem; }
    .book-card__title { font-size: .92rem; }
    .book-card__author { font-size: .78rem; }
    .book-card__badge { font-size: .64rem; padding: 3px 8px; }

    /* Menší bloky filtru nálady → 2 na řádek, kompaktní. */
    .mood-hero-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: .6rem;
    }
    .mood-hero-card__image { aspect-ratio: 16 / 9; }
    .mood-svg { width: 40px; height: 40px; }
    .mood-hero-card__emoji { font-size: 2.2rem; }
    .mood-hero-card__body { padding: .55rem .65rem; }
    .mood-hero-card__label { font-size: .9rem; }
    .mood-hero-card__desc { display: none; }
}

.book-card {
    display: flex;
    flex-direction: column;
    background: var(--color-bg-elev);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: transform var(--t-base), box-shadow var(--t-base), border-color var(--t-base);
    height: 100%;
}
.book-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.book-card__cover {
    position: relative;
    aspect-ratio: 2 / 3;
    background: linear-gradient(135deg, var(--color-primary-soft), var(--color-surface));
    overflow: hidden;
    display: block;
}
.book-card__cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--t-base);
}
.book-card:hover .book-card__cover img { transform: scale(1.04); }
.book-card__badge {
    position: absolute;
    top: 10px;
    left: 10px;
    background: rgba(255, 255, 255, 0.92);
    color: var(--color-primary);
    border-radius: 999px;
    padding: 4px 10px;
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    backdrop-filter: blur(8px);
}

.book-card__body {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: var(--space-md);
    flex: 1;
}
.book-card__title {
    font-family: var(--font-serif);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-text);
    line-height: 1.3;
    margin: 0 0 4px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.book-card__author {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin: 0;
}
.book-card__meta {
    margin-top: auto;
    padding-top: var(--space-sm);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.78rem;
    color: var(--color-text-subtle);
}
.book-card__series {
    font-size: 0.78rem;
    color: var(--color-primary);
    margin-top: 2px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* ============================================================
   List page layout
   ============================================================ */

.list-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    gap: var(--space-xl);
    align-items: start;
}
.list-layout > * { min-width: 0; }
@media (max-width: 991px) {
    .list-layout { grid-template-columns: 1fr; }
}

/* ============================================================
   Filter sidebar
   ============================================================ */

.filter-card {
    background: var(--color-bg-elev);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    position: sticky;
    top: 96px;
}
.filter-card__actions { display: flex; align-items: center; gap: 12px; }
.filter-card__close {
    display: none;
    background: none;
    border: 0;
    font-size: 1.6rem;
    line-height: 1;
    cursor: pointer;
    padding: 4px 8px;
    color: var(--color-text-muted);
}
.filter-card__close:hover { color: var(--color-text); }

.filter-toggle { display: none; }
.filter-backdrop { display: none; }

@media (max-width: 991px) {
    .filter-toggle {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        background: var(--color-bg-elev);
        border: 1px solid var(--color-border);
        border-radius: 999px;
        padding: 8px 16px;
        font-size: 0.9rem;
        font-weight: 500;
        cursor: pointer;
        margin-bottom: var(--space-md);
        color: var(--color-text);
    }
    .filter-toggle:hover { border-color: var(--color-primary); color: var(--color-primary); }
    .filter-toggle__badge {
        background: var(--color-primary);
        color: #fff;
        border-radius: 999px;
        font-size: 0.72rem;
        padding: 1px 8px;
        font-weight: 600;
        min-width: 20px;
        text-align: center;
    }

    .filter-card {
        position: fixed;
        bottom: 0;
        left: 0;
        right: 0;
        top: auto;
        margin: 0;
        max-height: 85vh;
        overflow-y: auto;
        border-radius: var(--radius-lg) var(--radius-lg) 0 0;
        transform: translateY(100%);
        transition: transform 0.3s ease;
        z-index: 1001;
        box-shadow: 0 -8px 24px rgba(0, 0, 0, 0.15);
    }
    .filter-card.is-open { transform: translateY(0); }
    .filter-card__close { display: inline-flex; align-items: center; }
    .filter-list { max-height: none; overflow-y: visible; }

    .filter-backdrop {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 1000;
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.3s, visibility 0.3s;
    }
    .filter-backdrop.is-open { opacity: 1; visibility: visible; }

    body.no-scroll { overflow: hidden; }
}
.filter-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--space-md);
}
.filter-card__header h3 {
    margin: 0;
    font-size: 1.1rem;
    font-family: var(--font-sans);
    font-weight: 600;
}
.filter-card__reset {
    font-size: 0.82rem;
    color: var(--color-text-muted);
}
.filter-card__reset:hover { color: var(--color-primary); }
.filter-section + .filter-section { margin-top: var(--space-lg); }
.filter-section__title {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-subtle);
    font-weight: 600;
    margin-bottom: var(--space-sm);
}
.filter-list { max-height: 360px; overflow-y: auto; padding-right: 4px; }
.filter-list::-webkit-scrollbar { width: 6px; }
.filter-list::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 999px; }
.filter-option { display: flex; align-items: center; gap: 8px; padding: 6px 0; font-size: 0.9rem; cursor: pointer; }
.filter-option input[type="checkbox"] {
    appearance: none;
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border: 1.5px solid var(--color-border);
    border-radius: 4px;
    background: #fff;
    display: grid;
    place-items: center;
    cursor: pointer;
    transition: border-color var(--t-fast), background var(--t-fast);
}
.filter-option input[type="checkbox"]:checked {
    background: var(--color-primary);
    border-color: var(--color-primary);
}
.filter-option input[type="checkbox"]:checked::after {
    content: '';
    width: 10px;
    height: 6px;
    border: 2px solid #fff;
    border-top: 0;
    border-right: 0;
    transform: rotate(-45deg) translate(1px, -1px);
}
.filter-option__label { flex: 1; color: var(--color-text); }
.filter-option__count { color: var(--color-text-subtle); font-size: 0.82rem; }
.filter-option:hover .filter-option__label { color: var(--color-primary); }
.filter-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: var(--space-md); }
.filter-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--color-primary-soft);
    color: var(--color-primary);
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 0.8rem;
}

/* ============================================================
   Book detail
   ============================================================ */

.book-detail {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: var(--space-xl);
    align-items: start;
}
@media (max-width: 767px) {
    .book-detail { grid-template-columns: 1fr; }
}
.book-detail__cover {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, var(--color-primary-soft), var(--color-surface));
    aspect-ratio: 2 / 3;
    position: sticky;
    top: 96px;
}
.book-detail__cover img { width: 100%; height: 100%; object-fit: cover; }
@media (max-width: 767px) {
    .book-detail__cover {
        position: static;
        top: auto;
        aspect-ratio: auto;
        max-width: 280px;
        margin: 0 auto;
    }
    .book-detail__cover img {
        height: auto;
        max-height: 60vh;
        object-fit: contain;
    }
}

.book-detail__eyebrow {
    display: inline-block;
    color: var(--color-primary);
    background: var(--color-primary-soft);
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 0.78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--space-md);
}
.book-detail__title {
    font-size: clamp(1.8rem, 3.2vw, 2.6rem);
    margin: 0 0 var(--space-sm);
}
.book-detail__author {
    font-size: 1.1rem;
    color: var(--color-text-muted);
    margin: 0 0 var(--space-lg);
}
.book-detail__rating {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin: 0 0 var(--space-lg);
}
.book-detail__rating .star-rating { line-height: 1; }
.book-detail__rating-value {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    font-weight: 500;
}
.book-detail__meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
    padding: var(--space-md) 0;
    border-top: 1px solid var(--color-border);
    border-bottom: 1px solid var(--color-border);
}
.book-detail__meta-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
    min-width: 110px;
}
.book-detail__meta-label {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--color-text-subtle);
    font-weight: 600;
}
.book-detail__meta-value {
    font-size: 0.95rem;
    color: var(--color-text);
    font-weight: 500;
}

.book-detail__description {
    font-family: var(--font-serif);
    font-size: 1.1rem;
    line-height: 1.7;
    color: var(--color-text);
    margin-bottom: var(--space-lg);
}

.book-detail__series {
    background: var(--color-surface);
    border-left: 3px solid var(--color-accent);
    padding: var(--space-md) var(--space-lg);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    margin-bottom: var(--space-lg);
}
.book-detail__series h4 {
    margin: 0 0 var(--space-sm);
    font-family: var(--font-sans);
    font-size: 1rem;
}
.book-detail__series-list { display: flex; flex-direction: column; gap: 6px; }

.series-part {
    display: flex;
    align-items: center;
    gap: var(--space-sm, 10px);
    padding: 6px;
    border-radius: var(--radius-md, 8px);
    background: var(--color-bg, #fff);
    border: 1px solid transparent;
    text-decoration: none;
    color: var(--color-text);
    transition: background .15s ease, border-color .15s ease, transform .15s ease;
}
.series-part:hover {
    background: var(--color-primary-soft, #f3eef9);
    border-color: var(--color-border, #E5DDF1);
    transform: translateX(2px);
}
.series-part__cover {
    flex: 0 0 auto;
    width: 38px;
    height: 54px;
    border-radius: var(--radius-sm, 4px);
    overflow: hidden;
    background: var(--color-surface);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 1px 3px rgba(0, 0, 0, .14);
}
.series-part__cover img { width: 100%; height: 100%; object-fit: cover; display: block; }
.series-part__cover i { color: var(--color-text-muted); font-size: .9rem; }
.series-part__body { display: flex; flex-direction: column; min-width: 0; flex: 1 1 auto; }
.series-part__title {
    font-size: .92rem;
    font-weight: 600;
    line-height: 1.25;
    color: var(--color-text);
}
.series-part:hover .series-part__title { color: var(--color-primary); }
.series-part__meta {
    font-size: .8rem;
    color: var(--color-text-muted);
    margin-top: 2px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.series-part__pos {
    display: inline-block;
    background: var(--color-primary-soft, #f3eef9);
    color: var(--color-primary, #6D28D9);
    border-radius: 999px;
    padding: 0 7px;
    font-weight: 600;
    margin-right: 5px;
}
.series-part__arrow {
    flex: 0 0 auto;
    margin-left: auto;
    color: var(--color-text-muted);
    font-size: .75rem;
    transition: transform .15s ease, color .15s ease;
}
.series-part:hover .series-part__arrow { color: var(--color-primary); transform: translateX(2px); }

.book-detail__actions { display: flex; flex-wrap: wrap; gap: var(--space-sm); margin-bottom: var(--space-lg); }

/* Similar books rail */
.similar-rail {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: var(--space-md);
}

/* ============================================================
   Pagination / load more
   ============================================================ */

.pagination-cta {
    display: flex;
    justify-content: center;
    margin: var(--space-xl) 0;
}

.empty-state {
    text-align: center;
    padding: var(--space-2xl) var(--space-lg);
    color: var(--color-text-muted);
}
.empty-state__icon {
    font-size: 3rem;
    color: var(--color-accent);
    margin-bottom: var(--space-md);
}

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

.site-footer {
    background: var(--color-accent-deep);
    color: rgba(255, 255, 255, 0.85);
    padding: var(--space-2xl) 0 var(--space-lg);
    margin-top: var(--space-2xl);
}
.site-footer h4 {
    color: #fff;
    font-family: var(--font-sans);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--space-md);
}
.site-footer a { color: rgba(255, 255, 255, 0.7); }
.site-footer a:hover { color: #fff; }
.site-footer__grid {
    display: grid;
    grid-template-columns: 1.5fr repeat(2, 1fr);
    gap: var(--space-xl);
    margin-bottom: var(--space-xl);
}
@media (max-width: 767px) { .site-footer__grid { grid-template-columns: 1fr; } }
.site-footer__brand { display: flex; align-items: center; gap: 10px; color: #fff; font-family: var(--font-serif); font-size: 1.4rem; font-weight: 700; }
.site-footer__bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    padding-top: var(--space-md);
    text-align: center;
    font-size: 0.85rem;
    color: rgba(255, 255, 255, 0.6);
}

/* ============================================================
   Mobile nav
   ============================================================ */

@media (max-width: 767px) {
    .site-header__inner { flex-wrap: wrap; }
    .site-search { order: 3; flex-basis: 100%; max-width: none; }
    .site-nav__link span { display: none; }
    .hero { padding: var(--space-xl) 0; }
    .section { padding: var(--space-xl) 0; }
}

/* ============================================================
   Utilities
   ============================================================ */

.flex { display: flex; }
.flex-col { flex-direction: column; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mb-md { margin-bottom: var(--space-md); }
.text-center { text-align: center; }

/* ============================================================
   Search autocomplete
   ============================================================ */

.autoComplete_wrapper { width: 100%; position: relative; }

ul.knihy-suggest {
    position: absolute;
    left: 0;
    right: 0;
    top: calc(100% + 6px);
    z-index: 1000;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: 6px;
    margin: 0;
    max-height: 70vh;
    overflow-y: auto;
    list-style: none;
}

.autoComplete_wrapper > ul > li.knihy-suggest__item,
li.knihy-suggest__item {
    display: block;
    padding: 8px 10px;
    border-radius: var(--radius-md);
    cursor: pointer;
    color: var(--color-text);
    transition: background var(--t-fast);
    white-space: normal;
    overflow: hidden;
}

.autoComplete_wrapper > ul > li.knihy-suggest__item::after,
li.knihy-suggest__item::after {
    content: "";
    display: block;
    clear: both;
}

li.knihy-suggest__item:hover,
li.knihy-suggest__item[aria-selected="true"] {
    background: var(--color-primary-soft);
}

.knihy-suggest__cover {
    float: left;
    width: 44px;
    height: 60px;
    margin-right: var(--space-md);
    object-fit: cover;
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    box-shadow: var(--shadow-sm);
}

.knihy-suggest__meta {
    overflow: hidden;
    min-width: 0;
}

.knihy-suggest__title {
    font-family: var(--font-serif);
    font-weight: 600;
    font-size: 0.98rem;
    color: var(--color-text);
    line-height: 1.25;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 1;
    -webkit-box-orient: vertical;
}

li.knihy-suggest__item:hover .knihy-suggest__title,
li.knihy-suggest__item[aria-selected="true"] .knihy-suggest__title {
    color: var(--color-primary);
}

.knihy-suggest__author {
    font-size: 0.82rem;
    color: var(--color-text-muted);
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.knihy-suggest__genre {
    float: right;
    margin-left: var(--space-md);
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-primary);
    background: var(--color-primary-soft);
    padding: 4px 8px;
    border-radius: 999px;
    white-space: nowrap;
}

ul.knihy-suggest > li.no_result {
    padding: var(--space-md);
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.9rem;
    font-style: italic;
    cursor: default;
}

.knihy-suggest mark {
    background: var(--color-accent);
    color: #fff;
    padding: 0 2px;
    border-radius: 3px;
}

/* ============================================================
   Forms (generic)
   ============================================================ */

.form-control,
.form-floating > .form-control,
input[type="text"]:not(.site-search__input),
input[type="email"]:not(.site-search__input),
input[type="password"]:not(.site-search__input),
input[type="number"]:not(.site-search__input),
input[type="tel"]:not(.site-search__input),
input[type="url"]:not(.site-search__input),
textarea {
    width: 100%;
    padding: 12px 14px;
    font-family: inherit;
    font-size: 0.95rem;
    line-height: 1.4;
    color: var(--color-text);
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-sm);
    transition: border-color var(--t-fast), box-shadow var(--t-fast), background var(--t-fast);
}

.form-control::placeholder,
input::placeholder,
textarea::placeholder {
    color: var(--color-text-subtle);
}

.form-control:hover,
input[type="text"]:hover:not(.site-search__input),
input[type="email"]:hover:not(.site-search__input),
input[type="password"]:hover:not(.site-search__input),
textarea:hover {
    border-color: var(--color-accent);
}

.form-control:focus,
input[type="text"]:focus:not(.site-search__input),
input[type="email"]:focus:not(.site-search__input),
input[type="password"]:focus:not(.site-search__input),
input[type="number"]:focus:not(.site-search__input),
input[type="tel"]:focus:not(.site-search__input),
input[type="url"]:focus:not(.site-search__input),
textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 4px var(--color-primary-soft);
    background: #fff;
}

textarea { min-height: 120px; resize: vertical; }

.form-floating {
    position: relative;
    margin-bottom: var(--space-md);
}
.form-floating > .form-control { padding: 26px 14px 8px; }
.form-floating > label {
    position: absolute;
    top: 50%;
    left: 14px;
    transform: translateY(-50%);
    color: var(--color-text-subtle);
    font-size: 0.95rem;
    line-height: 1;
    pointer-events: none;
    transition: top var(--t-fast), transform var(--t-fast), font-size var(--t-fast), color var(--t-fast);
    background: transparent;
    padding: 0;
}
.form-floating > .form-control:focus ~ label,
.form-floating > .form-control:not(:placeholder-shown) ~ label {
    top: 4px;
    transform: translateY(0);
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
}

/* ============================================================
   Auth (login / registration)
   ============================================================ */

.auth-shell {
    display: flex;
    justify-content: center;
    padding: var(--space-xl) 0;
}

.auth-card {
    width: 100%;
    max-width: 440px;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    padding: var(--space-xl);
    box-shadow: var(--shadow-lg);
}

.auth-card__header {
    text-align: center;
    margin-bottom: var(--space-xl);
}

.auth-card__icon {
    display: inline-grid;
    place-items: center;
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent-deep));
    color: #fff;
    font-size: 1.4rem;
    margin-bottom: var(--space-md);
    box-shadow: var(--shadow-md);
}

.auth-card__title {
    font-family: var(--font-serif);
    font-size: 1.75rem;
    margin: 0 0 var(--space-sm);
}

.auth-card__lead {
    color: var(--color-text-muted);
    margin: 0;
    font-size: 0.95rem;
}

.auth-form {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin-bottom: var(--space-lg);
}

.auth-form .form-floating {
    margin-bottom: 0;
}

.auth-card__divider {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin: var(--space-lg) 0;
    color: var(--color-text-subtle);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.auth-card__divider::before,
.auth-card__divider::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--color-border);
}

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

.auth-card__footer p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin: 0 0 var(--space-md);
}

/* ============================================================
   User profile
   ============================================================ */

.profile-greeting {
    background: var(--color-primary-soft);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    margin-bottom: var(--space-xl);
    color: var(--color-text);
    line-height: 1.55;
}

.profile-form {
    max-width: 560px;
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    box-shadow: var(--shadow-sm);
}

.profile-form__heading {
    font-family: var(--font-serif);
    font-weight: 600;
    margin: 0 0 var(--space-lg);
}

.profile-form__field {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: var(--space-lg);
}

.profile-form__field label {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-text-muted);
}

.profile-form__field input,
.profile-form__field textarea {
    padding: 10px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 0.95rem;
    background: #fff;
    transition: border-color var(--t-fast), box-shadow var(--t-fast);
}

.profile-form__field input:focus,
.profile-form__field textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px var(--color-primary-soft);
}

.profile-form__hint {
    display: block;
    font-size: 0.8rem;
    color: var(--color-text-subtle);
    margin-top: 2px;
}

.profile-form__actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

.alert {
    padding: 10px 14px;
    border-radius: var(--radius-md);
    margin-bottom: var(--space-md);
    font-size: 0.92rem;
}

.alert-success {
    background: #e7f6ec;
    color: #1f6a3c;
    border: 1px solid #b8e0c5;
}

.alert-danger {
    background: #fbe7e9;
    color: #8a1d29;
    border: 1px solid #f1c4c8;
}

/* ============================================================
   Mood-based discovery
   ============================================================ */

/* Homepage hero: 6 image tiles, single-select entry point */
.mood-hero-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: var(--space-md);
}
.mood-hero-card {
    display: flex;
    flex-direction: column;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: #fff;
    text-decoration: none;
    color: inherit;
    border: 1px solid var(--color-border, #e6e2dc);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
    transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}
.mood-hero-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.08);
    border-color: var(--color-primary, #b08458);
}
.mood-hero-card__image {
    width: 100%;
    aspect-ratio: 5 / 3;
    display: flex;
    align-items: center;
    justify-content: center;
}
.mood-hero-card__emoji {
    font-size: 3.2rem;
    line-height: 1;
    filter: saturate(0.85);
}
.mood-svg {
    width: 64px;
    height: 64px;
    stroke-opacity: 0.9;
}
.mood-hero-card__body {
    padding: var(--space-md);
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.mood-hero-card__icon { font-size: 1.4rem; line-height: 1; }
.mood-hero-card__label {
    font-weight: 700;
    font-size: 1rem;
    color: var(--color-text, #2a2422);
}
.mood-hero-card__desc {
    font-size: 0.85rem;
    color: var(--color-muted, #7a7268);
    line-height: 1.35;
}

/* Chip rail above /list: horizontal scroll-snap selector */
.mood-rail-wrap {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-bottom: var(--space-sm);
    min-width: 0;
}
.mood-rail-nav {
    flex: 0 0 auto;
    width: 32px;
    height: 32px;
    border-radius: 999px;
    border: 1px solid var(--color-border, #e6e2dc);
    background: #fff;
    color: var(--color-text, #2a2422);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: .85rem;
    padding: 0;
    transition: background .12s ease, color .12s ease, border-color .12s ease, opacity .15s ease;
}
.mood-rail-nav:hover {
    background: var(--color-primary-soft, #f3e6d6);
    border-color: var(--color-primary, #b08458);
    color: var(--color-primary, #b08458);
}
.mood-rail-nav[hidden] { display: none; }
.mood-rail {
    flex: 1 1 auto;
    min-width: 0;
    display: flex;
    flex-wrap: nowrap;
    gap: 8px;
    padding: 4px 0 12px;
    overflow-x: auto;
    overflow-y: hidden;
    scroll-snap-type: x proximity;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}
.mood-rail::-webkit-scrollbar { display: none; }
.mood-rail__chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    border-radius: 999px;
    border: 1px solid var(--color-border, #e6e2dc);
    background: #fff;
    color: var(--color-text, #2a2422);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    white-space: nowrap;
    flex: 0 0 auto;
    scroll-snap-align: start;
    transition: background .12s ease, color .12s ease, border-color .12s ease;
}
.mood-rail__chip:hover {
    background: var(--color-primary-soft, #f3e6d6);
    border-color: var(--color-primary, #b08458);
}
.mood-rail__chip.is-active {
    background: var(--color-primary, #b08458);
    color: #fff;
    border-color: var(--color-primary, #b08458);
}
.mood-rail__chip.is-disabled {
    opacity: .45;
    pointer-events: none;
}
.mood-rail__count {
    display: inline-block;
    min-width: 18px;
    padding: 1px 6px;
    border-radius: 999px;
    background: rgba(0,0,0,.08);
    color: inherit;
    font-size: .72rem;
    font-weight: 600;
    text-align: center;
    line-height: 1.3;
}
.mood-rail__chip.is-active .mood-rail__count {
    background: rgba(255,255,255,.25);
}
.mood-active-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}
.mood-rail__icon { font-size: 1.05rem; line-height: 1; }
.mood-rail__svg {
    width: 16px;
    height: 16px;
    stroke-opacity: 0.9;
    flex: 0 0 16px;
}

/* ── Privacy options (profile page) ────────────────────────── */
.privacy-options {
    list-style: none;
    margin: 0 0 var(--space-lg);
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: .5rem;
}
.privacy-option {
    display: grid;
    grid-template-columns: 40px 1fr auto;
    align-items: center;
    gap: .9rem;
    padding: .8rem 1rem;
    border: 1px solid var(--color-border, #e6e2dc);
    border-radius: 12px;
    background: #fff;
    cursor: pointer;
    transition: border-color .15s ease, background .15s ease, box-shadow .15s ease;
}
.privacy-option:hover {
    border-color: var(--color-primary, #6D28D9);
    background: rgba(109, 40, 217, .03);
}
.privacy-option:has(input:checked) {
    border-color: var(--color-primary, #6D28D9);
    box-shadow: 0 0 0 2px rgba(109, 40, 217, .08);
}
.privacy-option__icon {
    width: 40px;
    height: 40px;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    flex: 0 0 auto;
}
.privacy-option__text {
    display: flex;
    flex-direction: column;
    gap: .15rem;
    min-width: 0;
}
.privacy-option__title {
    font-weight: 600;
    font-size: .95rem;
    color: var(--color-text);
}
.privacy-option__hint {
    font-size: .8rem;
    color: var(--color-text-muted);
    line-height: 1.35;
}
/* Hide the native checkbox; the .privacy-option__switch is the visual control. */
.privacy-option input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
    width: 0; height: 0;
    margin: 0;
}
.privacy-option__switch {
    flex: 0 0 auto;
    position: relative;
    width: 40px;
    height: 22px;
    border-radius: 999px;
    background: #d6d2cc;
    transition: background .15s ease;
}
.privacy-option__switch::before {
    content: "";
    position: absolute;
    top: 2px;
    left: 2px;
    width: 18px;
    height: 18px;
    border-radius: 999px;
    background: #fff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, .2);
    transition: transform .18s ease;
}
.privacy-option input:checked ~ .privacy-option__switch {
    background: var(--color-primary, #6D28D9);
}
.privacy-option input:checked ~ .privacy-option__switch::before {
    transform: translateX(18px);
}
.privacy-option input:focus-visible ~ .privacy-option__switch {
    box-shadow: 0 0 0 3px var(--color-primary-soft, rgba(109, 40, 217, .2));
}

/* Heart button overlaid on a genre chip — appears on hover for non-favourite
   genres, always-visible (filled) for favourites. Lives outside the chip's
   <a> to avoid nested-interactive HTML. */
.genre-chip-wrap {
    position: relative;
    display: block;
}
.genre-chip-wrap > .genre-chip { height: 100%; }
.genre-chip__fav {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 28px;
    height: 28px;
    border-radius: 999px;
    border: none;
    background: rgba(255, 255, 255, .92);
    color: var(--color-text-muted, #8a857c);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: .85rem;
    cursor: pointer;
    opacity: 0;
    transition: opacity .15s ease, color .15s ease, transform .12s ease, background .15s ease;
    z-index: 2;
}
.genre-chip__fav:hover {
    color: var(--color-danger, #e11d48);
    transform: scale(1.1);
}
.genre-chip__fav.is-active {
    color: var(--color-danger, #e11d48);
}
/* Reveal heart on hover/focus of the wrapper or chip. */
.genre-chip-wrap:hover .genre-chip__fav,
.genre-chip-wrap:focus-within .genre-chip__fav {
    opacity: 1;
}
.genre-chip__fav.is-loading {
    opacity: .6;
    pointer-events: none;
}

/* Disclosure toggle for the rest of homepage genres (shown when user has
   favourites set — primary grid shows favourites first, rest behind here). */
.genre-more {
    margin-top: 1.25rem;
}
.genre-more__toggle {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .55rem 1.1rem;
    border-radius: 999px;
    border: 1px solid var(--color-border, #e6e2dc);
    background: #fff;
    color: var(--color-text);
    font-size: .9rem;
    font-weight: 500;
    cursor: pointer;
    list-style: none;
    transition: background .15s ease, border-color .15s ease, color .15s ease;
}
.genre-more__toggle::-webkit-details-marker { display: none; }
.genre-more__toggle:hover {
    background: var(--color-primary-soft, rgba(109, 40, 217, .08));
    border-color: var(--color-primary, #6D28D9);
    color: var(--color-primary, #6D28D9);
}
.genre-more__icon { transition: transform .2s ease; font-size: .8rem; }
.genre-more[open] .genre-more__icon { transform: rotate(180deg); }
.genre-more .genre-more__label-close { display: none; }
.genre-more[open] .genre-more__label-open { display: none; }
.genre-more[open] .genre-more__label-close { display: inline; }

/* Activity panel — each sub-section is a card (consistent with other
   profile panels that use .profile-form box styling). */
#activity { display: flex; flex-direction: column; gap: 1rem; }
.activity-box {
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    box-shadow: var(--shadow-sm);
}
.activity-box__heading {
    margin: 0 0 1rem;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--color-text);
}

/* Activity points panel (profile + public profile summary). */
.activity-summary {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}
.activity-summary__total {
    flex: 0 0 auto;
    width: 88px;
    height: 88px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--color-primary, #6D28D9), var(--color-accent, #f59e0b));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.5rem;
    box-shadow: 0 6px 16px rgba(109, 40, 217, .25);
}
.activity-summary__meta { flex: 1 1 auto; min-width: 0; }
.activity-summary__level {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: .15rem;
}
.activity-summary__hint {
    font-size: .82rem;
    color: var(--color-text-muted, #7a7268);
    margin-bottom: .5rem;
}
.activity-progress {
    height: 8px;
    border-radius: 999px;
    background: rgba(0, 0, 0, .06);
    overflow: hidden;
}
.activity-progress__bar {
    height: 100%;
    background: linear-gradient(90deg, var(--color-primary, #6D28D9), var(--color-accent, #f59e0b));
    border-radius: 999px;
    transition: width .4s ease;
}
.activity-breakdown {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0;
}
.activity-breakdown li {
    display: grid;
    grid-template-columns: 1fr auto auto;
    align-items: center;
    gap: .75rem;
    padding: .55rem 0;
    border-bottom: 1px dashed var(--color-border, #e6e2dc);
    font-size: .92rem;
}
.activity-breakdown li:last-child { border-bottom: none; }
.activity-breakdown__count {
    color: var(--color-text-muted, #7a7268);
    font-variant-numeric: tabular-nums;
}
.activity-breakdown__points {
    font-weight: 600;
    color: var(--color-primary, #6D28D9);
    min-width: 50px;
    text-align: right;
    font-variant-numeric: tabular-nums;
}
@media (max-width: 520px) {
    .activity-summary { flex-direction: column; align-items: flex-start; }
    .activity-summary__total { width: 64px; height: 64px; font-size: 1.2rem; }
}

.activity-rewards,
.activity-levels {
    width: 100%;
    border-collapse: collapse;
    font-size: .9rem;
}
.activity-rewards th,
.activity-rewards td {
    text-align: left;
    padding: .55rem .75rem;
    border-bottom: 1px dashed var(--color-border, #e6e2dc);
}
.activity-rewards th {
    font-size: .78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--color-text-muted, #7a7268);
    border-bottom: 1px solid var(--color-border, #e6e2dc);
}
.activity-rewards__points {
    font-variant-numeric: tabular-nums;
    font-weight: 700;
    color: var(--color-primary, #6D28D9);
    width: 70px;
    white-space: nowrap;
}
.activity-rewards__unit {
    font-size: .82rem;
    color: var(--color-text-muted, #7a7268);
    text-align: right;
}
.activity-levels th,
.activity-levels td {
    text-align: left;
    padding: .55rem .75rem;
    border-bottom: 1px dashed var(--color-border, #e6e2dc);
}
.activity-levels th {
    font-size: .78rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--color-text-muted, #7a7268);
    border-bottom: 1px solid var(--color-border, #e6e2dc);
}
.activity-levels td:nth-child(2) {
    font-variant-numeric: tabular-nums;
    color: var(--color-text-muted, #7a7268);
    width: 90px;
}
.activity-levels__status {
    text-align: right;
    font-size: .8rem;
    color: var(--color-text-muted, #7a7268);
    text-transform: uppercase;
    letter-spacing: .04em;
}
.activity-levels tr.is-reached td { color: var(--color-text); }
.activity-levels tr.is-current {
    background: var(--color-primary-soft, rgba(109, 40, 217, .08));
}
.activity-levels tr.is-current td {
    font-weight: 600;
}
.activity-levels tr.is-current .activity-levels__status {
    color: var(--color-primary, #6D28D9);
    font-weight: 700;
}

/* Shelf picker on book detail (native <details> dropdown). */
.shelf-picker {
    position: relative;
    display: inline-block;
}
.shelf-picker__toggle {
    cursor: pointer;
    list-style: none;
    display: inline-flex;
    align-items: center;
    gap: .4rem;
}
.shelf-picker__toggle::-webkit-details-marker { display: none; }
.shelf-picker__chev { font-size: .75rem; transition: transform .2s ease; }
.shelf-picker[open] .shelf-picker__chev { transform: rotate(180deg); }
.shelf-picker__menu {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    min-width: 240px;
    padding: .35rem;
    border: 1px solid var(--color-border, #e6e2dc);
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 6px 24px rgba(0, 0, 0, .08);
    z-index: 50;
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.shelf-picker__item {
    display: flex;
    align-items: center;
    gap: .65rem;
    padding: .55rem .75rem;
    border: none;
    background: transparent;
    border-radius: 8px;
    cursor: pointer;
    color: var(--color-text);
    font-size: .92rem;
    text-align: left;
    transition: background .12s ease;
}
.shelf-picker__item:hover {
    background: var(--color-primary-soft, rgba(109, 40, 217, .07));
}
.shelf-picker__item span { flex: 1 1 auto; }
.shelf-picker__check {
    color: var(--color-primary, #6D28D9);
    opacity: 0;
    transition: opacity .12s ease;
    font-size: .85rem;
}
.shelf-picker__item.is-on .shelf-picker__check { opacity: 1; }
.shelf-picker__item.is-loading { opacity: .6; pointer-events: none; }

/* Shelf groups in profile panel (collapsible per shelf). */
.shelf-group {
    border: 1px solid var(--color-border, #e6e2dc);
    border-radius: 12px;
    background: #fff;
    margin-bottom: .6rem;
    overflow: hidden;
}
.shelf-group__header {
    display: flex;
    align-items: center;
    gap: .65rem;
    padding: .75rem 1rem;
    cursor: pointer;
    list-style: none;
    font-weight: 600;
}
.shelf-group__header::-webkit-details-marker { display: none; }
.shelf-group__name { flex: 1 1 auto; }
.shelf-group__count {
    background: rgba(0, 0, 0, .07);
    padding: 1px 9px;
    border-radius: 999px;
    font-size: .8rem;
    font-weight: 600;
    color: var(--color-text-muted, #7a7268);
}
.shelf-group__list {
    list-style: none;
    margin: 0;
    padding: 0 1rem 1rem;
    display: flex;
    flex-direction: column;
    gap: .35rem;
    /* Cap the box at ~5 rows; the rest scrolls instead of stretching the panel. */
    max-height: 13rem;
    overflow-y: auto;
    overscroll-behavior: contain;
}
/* Slim scrollbar so the capped list reads as a quiet, scrollable area. */
.shelf-group__list::-webkit-scrollbar { width: 8px; }
.shelf-group__list::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, .18);
    border-radius: 999px;
}
.shelf-group__list { scrollbar-width: thin; }
.shelf-group__list li {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: .5rem;
    padding: .4rem 0;
    border-top: 1px dashed rgba(0, 0, 0, .06);
}
.shelf-group__list a {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
}
.shelf-group__list a:hover { color: var(--color-primary, #6D28D9); }
.shelf-group__book {
    display: flex;
    flex-direction: column;
    gap: 1px;
    min-width: 0;
}
/* Autor — méně výrazný: menší, slabší řez, tlumená barva. */
.shelf-group__author {
    font-size: .8rem;
    font-weight: 400;
    color: var(--color-text-muted, #7a7268);
}
.shelf-group__list time { font-size: .78rem; color: var(--color-text-muted, #7a7268); }
.shelf-group__scrollhint {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: .35rem;
    margin: .15rem 1rem .85rem;
    font-size: .72rem;
    color: var(--color-text-muted, #7a7268);
    opacity: .75;
}
.shelf-group__scrollhint i { font-size: .7rem; }
.shelf-group__empty {
    margin: 0 1rem 1rem;
    padding-top: .25rem;
    font-size: .85rem;
    color: var(--color-text-muted, #7a7268);
    font-style: italic;
    border-top: 1px dashed rgba(0, 0, 0, .06);
}

/* Preview banner shown on the public profile when the owner clicks
   "Veřejný profil" with ?preview=1 — makes the page render with
   visibility rules as if it were viewed by a stranger. */
.preview-banner {
    display: flex;
    align-items: center;
    gap: .5rem;
    flex-wrap: wrap;
    padding: .65rem 1rem;
    margin: 0 0 1rem;
    border: 1px solid rgba(109, 40, 217, .25);
    background: var(--color-primary-soft, rgba(109, 40, 217, .08));
    color: var(--color-text);
    border-radius: 10px;
    font-size: .92rem;
}
.preview-banner__exit {
    margin-left: auto;
    color: var(--color-primary, #6D28D9);
    text-decoration: none;
    font-weight: 600;
}
.preview-banner__exit:hover { text-decoration: underline; }

/* Profile page: 2-column layout (sidebar nav + content panels). */
.profile-layout {
    display: grid;
    grid-template-columns: 240px 1fr;
    gap: var(--space-xl, 2rem);
    align-items: start;
    margin-top: var(--space-md, 1rem);
}
.profile-layout > * { min-width: 0; }
@media (max-width: 800px) {
    .profile-layout { grid-template-columns: 1fr; }
}

.profile-nav {
    display: flex;
    flex-direction: column;
    gap: .25rem;
    padding: .5rem;
    border: 1px solid var(--color-border, #e6e2dc);
    border-radius: 14px;
    background: #fff;
    position: sticky;
    top: var(--space-md, 1rem);
}

/* Mobile section switcher — hidden on desktop, where the sidebar is always shown. */
.profile-nav-toggle {
    display: none;
    width: 100%;
    align-items: center;
    gap: .6rem;
    padding: .8rem 1rem;
    border: 1px solid var(--color-border, #e6e2dc);
    border-radius: 12px;
    background: #fff;
    color: var(--color-text, #2a2422);
    font-size: .95rem;
    font-weight: 500;
    cursor: pointer;
}
.profile-nav-toggle span { flex: 1 1 auto; text-align: left; }
.profile-nav-toggle__caret { transition: transform .18s ease; }
.profile-nav-toggle[aria-expanded="true"] .profile-nav-toggle__caret { transform: rotate(180deg); }

@media (max-width: 800px) {
    .profile-nav-toggle { display: flex; }
    /* Don't pin the menu on mobile — it would cover the content while scrolling.
       Collapsed by default; opened only via the button. */
    .profile-nav {
        position: static;
        top: auto;
        display: none;
        margin-top: .5rem;
    }
    .profile-nav.is-open { display: flex; }
}

/* Public profile header: avatar · name+counts · action button.
   Desktop keeps the button on the right at its natural width. */
.public-profile__action { flex: 0 0 auto; }

@media (max-width: 600px) {
    /* On phones the button drops to its own full-width row below the counts,
       so the count line gets the full width and stays readable. */
    .public-profile__header { flex-wrap: wrap; }
    .public-profile__action {
        flex: 1 0 100%;
        justify-content: center;
        margin-top: .85rem;
    }
}
.profile-nav__item {
    display: inline-flex;
    align-items: center;
    gap: .65rem;
    padding: .65rem .85rem;
    border-radius: 10px;
    color: var(--color-text, #2a2422);
    text-decoration: none;
    font-size: .95rem;
    font-weight: 500;
    transition: background .12s ease, color .12s ease;
}
.profile-nav__item:hover {
    background: var(--color-primary-soft, rgba(109, 40, 217, .06));
    color: var(--color-primary, #6D28D9);
}
.profile-nav__item.is-active {
    background: var(--color-primary, #6D28D9);
    color: #fff;
}
.profile-nav__item.is-active:hover { background: var(--color-primary, #6D28D9); color: #fff; }
.profile-nav__icon {
    width: 20px;
    text-align: center;
    flex: 0 0 auto;
    font-size: .95rem;
}
.profile-nav__badge {
    margin-left: auto;
    background: rgba(0, 0, 0, .07);
    color: inherit;
    padding: 1px 8px;
    border-radius: 999px;
    font-size: .75rem;
    font-weight: 600;
}
.profile-nav__item.is-active .profile-nav__badge { background: rgba(255, 255, 255, .25); }
.profile-nav__item--ghost {
    color: var(--color-text-muted, #7a7268);
    border-top: 1px dashed var(--color-border, #e6e2dc);
    margin-top: .25rem;
    padding-top: .85rem;
}
.profile-nav__item--ghost:first-of-type { border-top: none; margin-top: 0; padding-top: .65rem; }

.profile-panels {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

/* Favourite-genre picker on the profile page. */
.genre-picker {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
}
.genre-pill {
    display: inline-flex;
    align-items: center;
    padding: .45rem .9rem;
    border-radius: 999px;
    border: 1px solid var(--color-border, #e6e2dc);
    background: #fff;
    color: var(--color-text);
    font-size: .88rem;
    font-weight: 500;
    cursor: pointer;
    user-select: none;
    transition: background .12s ease, border-color .12s ease, color .12s ease;
}
.genre-pill:hover {
    border-color: var(--color-primary, #6D28D9);
    background: rgba(109, 40, 217, .04);
}
.genre-pill input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
    width: 0; height: 0;
    margin: 0;
}
.genre-pill.is-checked,
.genre-pill:has(input:checked) {
    background: var(--color-primary, #6D28D9);
    border-color: var(--color-primary, #6D28D9);
    color: #fff;
}

/* Inline link to a user's public profile — keeps surrounding typography. */
.user-link {
    color: inherit;
    text-decoration: none;
    border-bottom: 1px dotted transparent;
    transition: border-color .15s ease, color .15s ease;
}
.user-link:hover {
    border-bottom-color: currentColor;
    color: var(--color-primary, #6D28D9);
}

/* Active mood chip in the results header (removable) */
.mood-active-chip {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px 4px 12px;
    border-radius: 999px;
    background: var(--color-primary-soft, #f3e6d6);
    color: var(--color-primary, #8a6543);
    border: 1px solid var(--color-primary, #b08458);
    text-decoration: none;
    font-size: 0.88rem;
    font-weight: 600;
}
.mood-active-chip__x {
    display: inline-flex;
    width: 18px; height: 18px;
    align-items: center; justify-content: center;
    background: var(--color-primary, #b08458);
    color: #fff;
    border-radius: 999px;
    font-size: 0.78rem;
    line-height: 1;
}
.mood-active-chip:hover .mood-active-chip__x {
    background: #2a2422;
}

/* ============================================================
   App modal — reusable confirm / alert dialog
   ============================================================ */

.app-modal {
    position: fixed;
    inset: 0;
    background: rgba(31, 27, 45, 0.55);
    -webkit-backdrop-filter: blur(2px);
    backdrop-filter: blur(2px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    padding: 1rem;
    animation: appModalFade .15s ease;
}
.app-modal.is-open { display: flex; }

.app-modal__card {
    background: #fff;
    border-radius: var(--radius-lg, 14px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.25);
    max-width: 440px;
    width: 100%;
    overflow: hidden;
    animation: appModalPop .15s ease;
}

.app-modal__body {
    padding: 1.4rem 1.5rem 0.75rem;
}
.app-modal__icon {
    width: 44px; height: 44px;
    display: inline-flex; align-items: center; justify-content: center;
    border-radius: 999px;
    background: var(--color-primary-soft, #f3e6d6);
    color: var(--color-primary, #b08458);
    font-size: 1.2rem;
    margin-bottom: .75rem;
}
.app-modal__icon--danger {
    background: rgba(225, 29, 72, 0.12);
    color: var(--color-danger, #e11d48);
}
.app-modal__title {
    margin: 0 0 .35rem;
    font-size: 1.18rem;
    color: var(--color-text, #1f1b2d);
}
.app-modal__message {
    margin: 0;
    color: var(--color-text-muted, #6b6680);
    line-height: 1.5;
}

.app-modal__actions {
    padding: .9rem 1.5rem 1.4rem;
    display: flex;
    gap: .55rem;
    justify-content: flex-end;
    flex-wrap: wrap;
}
.app-modal__btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: 8px;
    border: 1px solid transparent;
    font-family: inherit;
    font-weight: 600;
    font-size: .92rem;
    cursor: pointer;
    transition: background .12s ease, border-color .12s ease, color .12s ease;
}
.app-modal__btn--cancel {
    background: #fff;
    border-color: var(--color-border, #e6e2dc);
    color: var(--color-text, #1f1b2d);
}
.app-modal__btn--cancel:hover {
    background: var(--color-surface, #f5f1ea);
}
.app-modal__btn--primary {
    background: var(--color-primary, #b08458);
    color: #fff;
}
.app-modal__btn--primary:hover { filter: brightness(0.95); }
.app-modal__btn--danger {
    background: var(--color-danger, #e11d48);
    color: #fff;
}
.app-modal__btn--danger:hover { filter: brightness(0.92); }

@keyframes appModalFade {
    from { opacity: 0; } to { opacity: 1; }
}
@keyframes appModalPop {
    from { transform: scale(0.96); opacity: 0; }
    to   { transform: scale(1);    opacity: 1; }
}

/* ============================================================
   OAuth — Google sign-in button
   ============================================================ */
.btn-google {
    background: #fff;
    color: #1F1B2D;
    border: 1px solid var(--color-border, #E5DDF1);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}
.btn-google:hover {
    background: var(--color-surface, #F3EEF9);
    color: #1F1B2D;
    border-color: var(--color-text-subtle, #9892A8);
}