:root {
    --barva-pozadi: #1a1815;
    --barva-pozadi-svetlejsi: #24211d;
    --barva-text: #ede7dc;
    --barva-text-tlumena: #a89f8f;
    --barva-akcent: #c08a34;
    --barva-akcent-tmava: #8f6522;
}

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

html, body {
    height: 100%;
}

body {
    background-color: var(--barva-pozadi);
    color: var(--barva-text);
    font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

h1, h2 {
    font-family: Georgia, "Times New Roman", serif;
    font-weight: normal;
}

a {
    color: var(--barva-akcent);
    text-decoration: none;
}

/* --- Header a navigace --- */

header {
    position: sticky;
    top: 0;
    padding: 1rem 1.5rem;
    z-index: 10;
}

nav {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0.8rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--barva-pozadi-svetlejsi);
    border: 1px solid var(--barva-akcent-tmava);
    border-radius: 12px;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.35);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    font-family: Georgia, serif;
    font-size: 1.4rem;
    color: var(--barva-text);
    letter-spacing: 1px;
}

.logo img {
    height: 100px;
    width: 100px;
    border-radius: 50%;
    margin: -1.4rem 0;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.45);
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 0.6rem;
}

.nav-links a {
    display: inline-block;
    color: var(--barva-text);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    transition: background-color 0.2s, color 0.2s;
}

.nav-links a:hover {
    background-color: var(--barva-akcent-tmava);
}

.nav-links a.active {
    background-color: var(--barva-akcent);
    color: var(--barva-pozadi);
    font-weight: bold;
}

/* --- Hlavní obsah --- */

.uvodni-blok {
    max-width: 1100px;
    margin: 0 auto;
}

main {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

section {
    padding: 4rem 0;
}

/* Domovská stránka: sekce jedou přes celou šířku obrazovky,
   obsah uvnitř se pak sám vystředí přes .obsah */

.stranka-domu .uvodni-blok,
.stranka-domu main {
    max-width: none;
    margin: 0;
    padding: 0;
}

.obsah {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* --- Hero sekce --- */

.hero {
    text-align: center;
    padding: 6rem 1.5rem;
    background-image: linear-gradient(rgba(26, 24, 21, 0.8), rgba(26, 24, 21, 0.92)), url("../img/rytba-4.jpg");
    background-size: cover;
    background-position: center;
}

.hero h1 {
    font-size: 2.8rem;
    color: var(--barva-text);
    margin-bottom: 1.2rem;
}

.hero p {
    font-size: 1.2rem;
    color: var(--barva-text-tlumena);
    max-width: 600px;
    margin: 0 auto;
}

/* --- Služby --- */

.stranka-domu .sluzby {
    background-color: var(--barva-pozadi-svetlejsi);
}

.sluzby h2, .ukazka h2, .galerie h1 {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    color: var(--barva-akcent);
}

.sluzby ul {
    list-style: none;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
}

.sluzby li {
    background-color: var(--barva-pozadi-svetlejsi);
    border: 1px solid var(--barva-akcent-tmava);
    padding: 1.2rem;
    border-radius: 4px;
    text-align: center;
    font-family: Georgia, "Times New Roman", serif;
    font-size: 1.15rem;
    letter-spacing: 0.3px;
    transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}

.sluzby li:hover {
    transform: translateY(-6px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.35);
    border-color: var(--barva-akcent);
}

/* --- Ukázka práce (Home) a Galerie --- */

.ukazka-obrazky,
.galerie-mrizka {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.ukazka-obrazky img,
.galerie-mrizka img {
    width: 100%;
    height: 260px;
    object-fit: cover;
    border-radius: 4px;
    transition: transform 0.3s;
    cursor: pointer;
}

.ukazka-obrazky img:hover,
.galerie-mrizka img:hover {
    transform: scale(1.03);
}

.odkaz-galerie {
    display: inline-block;
    color: var(--barva-akcent);
    font-weight: bold;
}

.odkaz-galerie:hover {
    color: var(--barva-text);
}

/* --- Kontakt --- */

.kontakt p {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
}

/* --- Footer --- */

main {
    flex: 1 0 auto;
    width: 100%;
}

footer {
    flex-shrink: 0;
    height: 100px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--barva-text-tlumena);
    border-top: 1px solid var(--barva-akcent-tmava);
}

/* --- Lightbox (zvětšení obrázku na celou obrazovku) --- */

.lightbox-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.9);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s;
    z-index: 100;
}

.lightbox-overlay.aktivni {
    opacity: 1;
    pointer-events: auto;
}

.lightbox-overlay img {
    max-width: 80%;
    max-height: 90%;
    border-radius: 4px;
}

.lightbox-sipka {
    background-color: rgba(255, 255, 255, 0.1);
    border: none;
    color: var(--barva-text);
    font-size: 2.2rem;
    width: 50px;
    height: 50px;
    flex-shrink: 0;
    border-radius: 50%;
    cursor: pointer;
    transition: background-color 0.2s, color 0.2s;
}

.lightbox-sipka:hover {
    background-color: var(--barva-akcent);
    color: var(--barva-pozadi);
}

@media (max-width: 600px) {
    .lightbox-sipka {
        width: 40px;
        height: 40px;
        font-size: 1.6rem;
    }
}

/* --- Animace při scrollu --- */

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* --- Responzivita --- */

@media (max-width: 600px) {
    nav {
        flex-direction: column;
        gap: 0.8rem;
    }

    .logo img {
        height: 56px;
        width: 56px;
        margin: 0;
    }

    .hero h1 {
        font-size: 2rem;
    }
}