/* zakladni nastaveni a minimalisticky styl */
:root {
    --barva-pozadi: #ffffff;
    --barva-textu: #2a2a2a; /* tmava sedo cerna at to netaha oci */
    --barva-seda: #f5f5f5; /* seda na placeholder */
    --barva-okraje: #eaeaea; /* tenky svetly cary */
    --barva-hover: #f9f9f9;
    --font-hlavni: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    --tranzice-rychla: 0.2s ease-in-out;
    --tranzice-stredni: 0.4s ease-out;
}

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

body {
    background-color: var(--barva-pozadi);
    color: var(--barva-textu);
    font-family: var(--font-hlavni);
    line-height: 1.6;
    overflow-x: hidden;
    overscroll-behavior-y: contain; 
}

.aplikace {
    position: relative;
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    overflow: hidden;
}

.obrazovka {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    opacity: 0;
    pointer-events: none;
    transform: translateX(10px); /* Zjemněná animace */
    transition: opacity var(--tranzice-stredni), transform var(--tranzice-stredni);
    background-color: var(--barva-pozadi);
    z-index: 1;
}

.obrazovka.aktivni {
    opacity: 1;
    pointer-events: auto;
    transform: translateX(0);
    z-index: 2;
}

/* styl pro nahled */
.hlavicka {
    padding: 10px 20px;
    text-align: center;
    border-bottom: 1px solid var(--barva-okraje);
}

.nadpis-hlavni {
    font-size: 0.9rem; /* malej nenapadnej nadpis */
    font-weight: 400;
    color: #999;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.obsah-nahled {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 20px;
    position: relative;
}

/* karta na kterou se da kliknout */
.karta-zpravy {
    width: 100%;
    max-width: 600px;
    display: flex;
    flex-direction: column;
    gap: 15px;
    opacity: 1;
    background-color: var(--barva-pozadi);
    transition: opacity var(--tranzice-rychla), background-color var(--tranzice-rychla);
    cursor: pointer; /* at je videt ze se na to da kliknout */
    -webkit-tap-highlight-color: transparent; /* zruseni modryho kliknuti na mobilu */
    padding: 15px; /* mezera kolem karty */
    border-radius: 0;
}

.karta-zpravy.mizi {
    opacity: 0.5; /* Místo zmizení jen lehce pohasne */
    pointer-events: none;
}

.karta-zpravy:hover, .karta-zpravy:focus-visible {
    background-color: var(--barva-hover);
    outline: none;
}

.obrazek-placeholder {
    width: 100%;
    aspect-ratio: 16 / 9;
    background-color: var(--barva-seda);
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
    /* ostry hrany bez ramecku */
}

#img-nahled {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.titulek {
    font-size: 1.6rem;
    font-weight: 600;
    text-align: left;
    line-height: 1.3;
}

/* tlacitka dole */
.paticka {
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.tlacitko {
    width: 100%;
    max-width: 400px;
    padding: 15px 20px;
    font-size: 1rem;
    font-weight: 500;
    font-family: inherit;
    text-transform: uppercase;
    letter-spacing: 1px;
    cursor: pointer;
    background-color: var(--barva-pozadi);
    color: var(--barva-textu);
    border: 1px solid var(--barva-okraje);
    border-radius: 0;
    transition: background-color var(--tranzice-rychla);
}

.tlacitko:hover, .tlacitko:active {
    background-color: var(--barva-hover);
}

.tlacitko:disabled {
    color: #999;
    cursor: not-allowed;
    background-color: var(--barva-pozadi);
}

/* styl pro detail */
.hlavicka-detail {
    padding: 10px 20px;
    border-bottom: 1px solid var(--barva-okraje);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.tlacitko-zpet {
    width: auto;
    padding: 8px 15px;
    font-size: 0.85rem;
}

.stitek-zdroj {
    font-size: 0.8rem;
    font-weight: 400;
    color: #666;
}

.obsah-detail {
    flex-grow: 1;
    overflow-y: auto;
    padding: 30px 20px;
    max-width: 800px;
    margin: 0 auto;
}

.nadpis-detail {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.text-detail {
    margin-bottom: 30px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.text-detail p {
    font-size: 1.15rem;
    line-height: 1.8;
    color: #333; /* svetlejsi text at se to lip cte */
    margin-bottom: 1.5em;
}

.odkaz-externi {
    display: inline-block;
    color: #888;
    font-size: 0.9rem;
    text-decoration: none;
    border-bottom: 1px solid #888;
    padding-bottom: 2px;
    transition: color var(--tranzice-rychla), border-color var(--tranzice-rychla);
}

.odkaz-externi:hover {
    color: var(--barva-textu);
    border-color: var(--barva-textu);
}

/* pomocny tridy */
.skryto {
    display: none !important;
}