/* Společné styly všech stránek webu. */
* {
    box-sizing: border-box;
}
html {
    font-family: Arial, Helvetica, sans-serif;
}
body {
    margin: 0;
    background: #ffffff;
    color: #222222;
    line-height: 1.6;
}
a {
    color: inherit;
}
.hlavicka {
    background: #ffffff;
    border-bottom: 1px solid #dddddd;
}
.hlavicka-vnitrni {
    max-width: 1200px;
    min-height: 100px;
    margin: 0 auto;
    padding: 15px 20px;

    display: flex;
    align-items: center;
    gap: 30px;
}
.logo-blok {
    display: flex;
    align-items: center;
    text-decoration: none;
}
.logo {
    display: block;
    max-width: 260px;
    max-height: 80px;
    width: auto;
    height: auto;
}
.nazev-webu {
    font-size: 2rem;
    font-weight: 700;
}
.slogan {
    flex: 1;
    font-size: 1.25rem;
    font-weight: 600;
}
.menu-toggle {
    display: none;
    padding: 8px 12px;

    border: 1px solid #cccccc;
    background: #ffffff;

    font-size: 1.6rem;
    cursor: pointer;
}
.hlavni-menu {
    background: #222222;
    color: #ffffff;
}
.menu-vnitrni {
    max-width: 1200px;
    margin: 0 auto;
}
.hlavni-menu ul {
    margin: 0;
    padding: 0;

    list-style: none;
}
.menu-vnitrni > ul {
    display: flex;
}
.hlavni-menu li {
    position: relative;
}
.hlavni-menu a {
    display: block;
    padding: 13px 18px;

    color: #ffffff;
    text-decoration: none;
}
.hlavni-menu a:hover, .hlavni-menu a:focus {
    background: #444444;
}
.sipka {
    margin-left: 7px;
    font-size: 0.8em;
}
.hlavni-menu li ul {
    display: none;

    position: absolute;
    top: 100%;
    left: 0;

    min-width: 220px;

    background: #333333;
    z-index: 1000;
}
.hlavni-menu li:hover > ul, .hlavni-menu li:focus-within > ul {
    display: block;
}
.hlavni-menu li ul li ul {
    top: 0;
    left: 100%;
}
.obsah {
    max-width: 1200px;
    min-height: 400px;

    margin: 0 auto;
    padding: 35px 20px;
}
.obsah h1 {
    margin-top: 0;
}
.paticka {
    margin-top: 40px;

    background: #222222;
    color: #eeeeee;
}
.paticka-vnitrni {
    max-width: 1200px;
    margin: 0 auto;
    padding: 35px 20px;

    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}
.paticka h3 {
    margin-top: 0;
}
.paticka a {
    color: #eeeeee;
}
.paticka-spodni {
    padding: 15px 20px;

    border-top: 1px solid #444444;

    text-align: center;
    font-size: 0.9rem;
}
@media  (max-width: 800px)  {
.hlavicka-vnitrni {
        min-height: auto;
        gap: 15px;
    }
.logo {
        max-width: 190px;
        max-height: 65px;
    }
.nazev-webu {
        font-size: 1.6rem;
    }
.slogan {
        font-size: 1rem;
    }
.menu-toggle {
        display: block;
        margin-left: auto;
    }
.hlavni-menu {
        display: none;
    }
.hlavni-menu.otevrene {
        display: block;
    }
.menu-vnitrni > ul {
        display: block;
    }
.hlavni-menu li ul {
        display: block;

        position: static;

        min-width: 0;

        background: #333333;
    }
.hlavni-menu li ul a {
        padding-left: 35px;
    }
.hlavni-menu li ul li ul a {
        padding-left: 55px;
    }
.sipka {
        display: none;
    }
.paticka-vnitrni {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}
@media  (max-width: 520px)  {
.hlavicka-vnitrni {
        flex-wrap: wrap;
    }
.slogan {
        order: 3;
        flex-basis: 100%;
    }
.obsah {
        padding: 25px 15px;
    }
}
.kategorie-popis { margin-bottom: 28px; color: #555; }
.seznam-clanku { display: grid; gap: 22px; }
.karta-clanku { display: flex; gap: 22px; padding-bottom: 22px; border-bottom: 1px solid #ddd; }
.karta-clanku-obrazek { flex: 0 0 260px; align-self: flex-start; }
.karta-clanku-obrazek img { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: cover; }
.karta-clanku-obsah { flex: 1; min-width: 0; }
.karta-clanku h2 { margin: 0 0 5px; font-size: 1.5rem; line-height: 1.3; }
.karta-clanku h2 a { text-decoration: none; }
.karta-clanku h2 a:hover, .karta-clanku-vice:hover { text-decoration: underline; }
.karta-clanku-meta { margin: 0 0 12px; color: #666; font-size: .9rem; }
.karta-clanku-uvod { margin: 0 0 12px; overflow-wrap: anywhere; }
.karta-clanku-vice { font-weight: 600; }
.strankovani-clanku { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 28px; }
.strankovani-clanku a, .strankovani-clanku strong { padding: 7px 12px; border: 1px solid #ccc; text-decoration: none; }
.strankovani-clanku strong { background: #222; color: #fff; }
@media  (max-width: 650px)  {
.karta-clanku { flex-direction: column; gap: 12px; }
.karta-clanku-obrazek { flex-basis: auto; width: 100%; }
.karta-clanku-obrazek img { max-height: 280px; }
}
.detail-clanku { max-width: 920px; margin: 0 auto; }
.detail-clanku-navigace { margin-bottom: 18px; font-size: .95rem; }
.detail-clanku-navigace a, .detail-clanku-zpet a { text-decoration: none; }
.detail-clanku-navigace a:hover, .detail-clanku-zpet a:hover { text-decoration: underline; }
.detail-clanku h1 { margin: 0 0 10px; line-height: 1.25; }
.detail-clanku-meta { margin: 0 0 24px; color: #666; font-size: .95rem; }
.detail-clanku-obrazek { margin: 0 0 28px; }
.detail-clanku-obrazek img { display: block; max-width: 100%; width: auto; height: auto; max-height: 620px; margin: 0 auto; }
.detail-clanku-uvod { margin-bottom: 25px; font-size: 1.12rem; font-weight: 600; line-height: 1.7; overflow-wrap: anywhere; }
.detail-clanku-text { line-height: 1.8; overflow-wrap: anywhere; }
.detail-clanku-zpet { margin-top: 38px; padding-top: 18px; border-top: 1px solid #ddd; }
@media  (max-width: 650px)  {
.detail-clanku h1 { font-size: 1.65rem; }
.detail-clanku-uvod { font-size: 1.05rem; }
}
html { font-size: 100%; }
body { line-height: 1.55; }
.hlavicka-vnitrni { max-width: 1400px; }
.menu-vnitrni, .obsah, .paticka-vnitrni { max-width: 1400px; }
.hlavni-menu a { padding: 12px 15px; }
.nazev-webu { font-size: 1.8rem; }
.slogan { font-size: 1.15rem; }
.obsah h1 { line-height: 1.2; }
.karta-clanku h2, .karta-clanku h3 { margin: 0 0 8px; font-size: 1.3rem; line-height: 1.3; }
.karta-clanku h3 a { text-decoration: none; }
.karta-clanku h3 a:hover { text-decoration: underline; }
.karta-clanku-obrazek { flex-basis: 290px; }
.karta-clanku-meta, .detail-clanku-meta { font-size: .8rem; }
.detail-clanku-uvod { font-size: 1.08rem; }
.detail-clanku { max-width: 1100px; }
@media  (max-width: 1050px)  {
.hlavni-menu a { padding: 10px 12px; }
}
@media  (max-width: 800px)  {
.karta-clanku { flex-direction: column; }
.karta-clanku-obrazek { flex-basis: auto; width: 100%; }
.karta-clanku-obrazek img { max-height: 350px; }
.hlavicka-vnitrni { flex-wrap: wrap; }
.slogan { order: 3; flex-basis: 100%; }
}
@media  (max-width: 520px)  {
html { font-size: 100%; }
.hlavicka-vnitrni { gap: 10px; }
.logo { max-width: 160px; }
}
/* Etapa 6D: formátovaný hlavní text článku */
.detail-clanku-text h2 { font-size:1.5em; line-height:1.3; margin:1.4em 0 .55em; }
.detail-clanku-text h3 { font-size:1.25em; line-height:1.35; margin:1.2em 0 .5em; }
.detail-clanku-text p { margin:0 0 1em; }
.detail-clanku-text ul,.detail-clanku-text ol { padding-left:1.5em; margin:0 0 1em; }
.detail-clanku-text blockquote { margin:1.2em 0; padding:.2em 1em; border-left:4px solid #7baed2; }
.detail-clanku-text img { display:block; max-width:100%; height:auto; margin:1.2em auto; }
.detail-clanku-text figure { margin:1.5em 0; }
.detail-clanku-text figcaption { text-align:center; font-size:.8em; color:#666; }


/* 6F: Sjednocena hlavicka, paticka a svetly/tmavy motiv */
:root {
 --page-bg:#f5f6f8; --surface:#fff; --surface-soft:#eef1f4;
 --text-main:#20242a; --text-muted:#68737f; --border-main:#dfe3e8;
 --border-strong:#cbd1d8; --footer-bg:#202832; --footer-text:#fff;
 --footer-muted:#c8ced5;
}
html[data-theme="dark"] {
 --page-bg:#0f1113; --surface:#191c1f; --surface-soft:#24282c;
 --text-main:#f1f3f5; --text-muted:#b7bdc4; --border-main:#343a40;
 --border-strong:#4b535b; --footer-bg:#090a0b; --footer-text:#f4f4f4;
 --footer-muted:#b9bec4;
}
html,body { background:var(--page-bg); color:var(--text-main); }
body { min-height:100vh; display:flex; flex-direction:column; }
.obsah { flex:1; }
.sjednocena-hlavicka { background:var(--surface); border-color:var(--border-main); }
.sjednocena-hlavicka .hlavicka-vnitrni { max-width:1400px; min-height:96px; gap:24px; }
.sjednocena-hlavicka .logo { max-width:220px; max-height:68px; }
.sjednocena-hlavicka .slogan { flex:1; min-width:0; color:var(--text-muted); font-size:1.35rem; font-weight:500; line-height:1.35; }
.sjednocena-hlavicka .hlavni-menu { background:transparent; color:var(--text-main); flex:0 1 auto; }
.sjednocena-hlavicka .menu-vnitrni { max-width:none; }
.sjednocena-hlavicka .menu-vnitrni > ul { display:flex; align-items:center; flex-wrap:nowrap; }
.sjednocena-hlavicka .hlavni-menu a { color:var(--text-main); padding:10px 11px; font-weight:400; text-decoration:none; white-space:nowrap; }
.sjednocena-hlavicka .hlavni-menu a:hover,
.sjednocena-hlavicka .hlavni-menu a:focus-visible { background:var(--surface-soft); }
.sjednocena-hlavicka .hlavni-menu li ul { background:var(--surface); border:1px solid var(--border-main); box-shadow:0 5px 18px rgba(0,0,0,.1); }
.sjednocena-hlavicka .hlavni-menu li ul a { white-space:normal; }
.sjednocene-menu-toggle { display:none; width:44px; height:40px; padding:8px; flex:0 0 44px; border:1px solid var(--border-strong); background:var(--surface); cursor:pointer; flex-direction:column; justify-content:center; gap:5px; }
.sjednocene-menu-toggle span { display:block; height:2px; width:100%; background:var(--text-main); }
.theme-toggle { width:42px; height:40px; flex:0 0 42px; display:grid; place-items:center; position:relative; border:1px solid var(--border-strong); background:var(--surface); color:var(--text-main); cursor:pointer; font-size:1.25rem; }
.theme-toggle:hover { background:var(--surface-soft); }
.theme-sun,.theme-moon { position:absolute; }
html[data-theme="light"] .theme-moon { display:none; }
html[data-theme="dark"] .theme-sun { display:none; }
.sjednocena-paticka { background:var(--footer-bg); color:var(--footer-text); margin-top:auto; }
.sjednocena-paticka .paticka-vnitrni { max-width:1400px; }
.sjednocena-paticka .paticka-sloupec h2 { margin:0 0 18px; font-size:1.2rem; font-weight:500; }
.sjednocena-paticka .paticka-odkazy { display:flex; flex-direction:column; align-items:flex-start; gap:9px; }
.sjednocena-paticka a { color:var(--footer-muted); text-decoration:none; }
.sjednocena-paticka a:hover { color:var(--footer-text); text-decoration:underline; }
.sjednocena-paticka .paticka-spodni { color:var(--footer-muted); }
/* Texty, karty a oddelovace na verejne casti webu */
html[data-theme="dark"] .kategorie-popis,
html[data-theme="dark"] .karta-clanku-meta,
html[data-theme="dark"] .detail-clanku-meta,
html[data-theme="dark"] .uvodni-karta-meta,
html[data-theme="dark"] .uvodni-karta-autor,
html[data-theme="dark"] .detail-clanku-text figcaption { color:var(--text-muted); }
html[data-theme="dark"] .karta-clanku,
html[data-theme="dark"] .detail-clanku-zpet,
html[data-theme="dark"] .uvodni-karta { border-color:var(--border-main); }
html[data-theme="dark"] .strankovani-clanku a,
html[data-theme="dark"] .strankovani-clanku strong { border-color:var(--border-strong); }
html[data-theme="dark"] .strankovani-clanku strong { background:#e5e8eb; color:#151719; }
@media(max-width:1150px) {
 .sjednocena-hlavicka .hlavicka-vnitrni { flex-wrap:wrap; gap:12px 18px; padding-block:13px; }
 .sjednocena-hlavicka .hlavni-menu { order:4; flex-basis:100%; }
 .sjednocena-hlavicka .menu-vnitrni > ul { justify-content:center; }
}
@media(max-width:800px) {
 .sjednocena-hlavicka .hlavicka-vnitrni { flex-wrap:wrap; }
 .sjednocena-hlavicka .slogan { order:0; flex:1; font-size:1.05rem; }
 .sjednocena-hlavicka .logo { max-width:170px; max-height:56px; }
 .sjednocene-menu-toggle { display:flex; order:1; }
 .sjednocena-hlavicka .theme-toggle { order:2; }
 .sjednocena-hlavicka .hlavni-menu { display:none; order:3; width:100%; flex-basis:100%; }
 .sjednocena-hlavicka .hlavni-menu.sjednocene-otevrene { display:block; }
 .sjednocena-hlavicka .menu-vnitrni > ul { display:block; }
 .sjednocena-hlavicka .hlavni-menu li ul { display:block; position:static; box-shadow:none; border:0; min-width:0; }
 .sjednocena-hlavicka .hlavni-menu li ul a { padding-left:35px; }
 .sjednocena-hlavicka .hlavni-menu li ul li ul a { padding-left:55px; }
 .sjednocena-hlavicka .sipka { display:none; }
}
@media(max-width:540px) {
 .sjednocena-hlavicka .slogan { flex:1 1 100%; order:3; font-size:.95rem; }
 .sjednocena-hlavicka .hlavni-menu { order:4; }
 .sjednocena-hlavicka .logo { max-width:135px; max-height:48px; }
}


/* Krok 3: priprava vzhledu stromu kategorii v menu Clanky.
   Pravidla jsou omezena na .clanky-menu-strom a zatim nemeni stavajici menu.
   Otevirani vetvi bude v dalsim kroku ovladat JavaScript. */
.sjednocena-hlavicka .clanky-menu-strom {
    width: min(380px, calc(100vw - 32px));
    max-height: min(70vh, 650px);
    overflow-y: auto;
    overscroll-behavior: contain;
    padding: 8px;
    background: var(--surface);
    border: 1px solid var(--border-main);
    box-shadow: 0 8px 24px rgba(0, 0, 0, .15);
}
.sjednocena-hlavicka .clanky-menu-strom .clanky-menu-uroven {
    position: static;
    display: block;
    min-width: 0;
    margin: 0;
    padding: 0;
    background: transparent;
    border: 0;
    box-shadow: none;
    list-style: none;
}
.sjednocena-hlavicka .clanky-menu-strom .clanky-menu-deti {
    position: static;
    margin: 4px 0 7px 13px;
    padding-left: 9px;
    border-left: 2px solid var(--barva-kategorie, var(--border-strong));
}
.sjednocena-hlavicka .clanky-menu-strom .clanky-menu-deti[hidden] {
    display: none !important;
}
.sjednocena-hlavicka .clanky-menu-strom .clanky-menu-polozka {
    position: static;
    margin: 3px 0;
}
.sjednocena-hlavicka .clanky-menu-strom .clanky-menu-radek {
    display: flex;
    align-items: stretch;
    background: var(--barva-kategorie, #2865b5);
}
.sjednocena-hlavicka .clanky-menu-strom .clanky-menu-odkaz {
    flex: 1;
    min-width: 0;
    padding: 9px 12px;
    color: #fff;
    font-weight: 500;
    white-space: normal;
    overflow-wrap: anywhere;
}
.sjednocena-hlavicka .clanky-menu-strom .clanky-menu-odkaz:hover,
.sjednocena-hlavicka .clanky-menu-strom .clanky-menu-odkaz:focus-visible {
    background: rgba(0, 0, 0, .18);
    color: #fff;
}
.sjednocena-hlavicka .clanky-menu-strom .clanky-menu-rozbalit {
    flex: 0 0 44px;
    border: 0;
    border-left: 1px solid rgba(255, 255, 255, .4);
    background: transparent;
    color: #fff;
    font: inherit;
    cursor: pointer;
}
.sjednocena-hlavicka .clanky-menu-strom .clanky-menu-rozbalit:hover,
.sjednocena-hlavicka .clanky-menu-strom .clanky-menu-rozbalit:focus-visible {
    background: rgba(0, 0, 0, .18);
}
.sjednocena-hlavicka .clanky-menu-strom .clanky-menu-rozbalit[aria-expanded="true"] span {
    display: inline-block;
    transform: rotate(180deg);
}
@media (max-width: 800px) {
    .sjednocena-hlavicka .clanky-menu-strom {
        position: static;
        width: 100%;
        max-height: none;
        overflow: visible;
        box-shadow: none;
    }
    .sjednocena-hlavicka .clanky-menu-strom .clanky-menu-odkaz {
        padding: 10px 12px;
    }
}
/* Jemné svislé oddělení kategorií */
.clanky-menu-polozka {
    margin-bottom: 3px;
}

.clanky-menu-polozka:last-child {
    margin-bottom: 0;
}

/* Oddělení barevných řádků kategorií */
.clanky-menu-radek {
    margin-bottom: 3px !important;
}