/* =========================================================
   ELIDE FIRE – hlavný štýl
   ========================================================= */

:root {
    --primary: #d32f2f;
    --primary-dark: #b71c1c;
    --dark: #1a1a1a;
    --light: #f5f5f5;
    --accent: #fdcb00;
    --text: #222;
    --muted: #666;
    --border: #e5e5e5;
    --radius: 12px;
    --shadow: 0 5px 15px rgba(0, 0, 0, .12);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, .18);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
    color: var(--text);
    line-height: 1.65;
    background: #fff;
    font-size: 16px;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 {
    color: var(--dark);
    line-height: 1.25;
    margin-bottom: .6em;
    font-weight: 700;
}

h1 { font-size: 2rem; margin-top: 1.2rem; }
h2 { font-size: 1.45rem; margin-top: 1.5rem; }
h3 { font-size: 1.15rem; }

p { margin-bottom: 1rem; }

ul, ol { margin: 0 0 1rem 1.4rem; }
li { margin-bottom: .3rem; }

em { color: var(--muted); }
strong { color: var(--dark); }

/* ---------- Layout ---------- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

section.container { padding-top: 2rem; padding-bottom: 2rem; }

/* ---------- Hlavička ---------- */
.site-header {
    background: var(--dark);
    color: #fff;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, .25);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: .8rem 1rem;
    gap: 1rem;
    flex-wrap: wrap;
}

.logo img { height: 50px; width: auto; }

.main-nav ul {
    display: flex;
    list-style: none;
    gap: 1.1rem;
    margin: 0;
    flex-wrap: wrap;
}

.main-nav li { margin: 0; }

.main-nav a {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    font-size: .95rem;
    transition: color .2s;
    padding: .2rem 0;
    border-bottom: 2px solid transparent;
}

.main-nav a:hover {
    color: var(--accent);
    border-bottom-color: var(--accent);
    text-decoration: none;
}

.lang-switcher {
    display: flex;
    gap: .35rem;
    align-items: center;
}

.lang-switcher a {
    color: #fff;
    text-decoration: none;
    font-size: .8rem;
    padding: .2rem .5rem;
    border-radius: 4px;
    border: 1px solid rgba(255, 255, 255, .35);
    transition: all .2s;
    font-weight: 600;
}

.lang-switcher a:hover {
    background: rgba(255, 255, 255, .1);
    text-decoration: none;
}

.lang-switcher a.active {
    background: var(--accent);
    color: #000;
    border-color: var(--accent);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: #fff;
    font-size: 1.8rem;
    cursor: pointer;
    line-height: 1;
    padding: .2rem .5rem;
}

/* ---------- Hero ---------- */
.hero {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary));
    color: #fff;
    padding: 5rem 1rem;
    text-align: center;
}

.hero h1 {
    font-size: 2.8rem;
    color: #fff;
    margin-bottom: 1rem;
}

.hero p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    max-width: 720px;
    margin-left: auto;
    margin-right: auto;
}

.btn {
    display: inline-block;
    background: var(--accent);
    color: #000;
    padding: .9rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    transition: transform .2s, box-shadow .2s;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
    text-decoration: none;
    color: #000;
}

/* ---------- Sekcie ---------- */
.intro {
    padding: 2.5rem 1rem;
    font-size: 1.12rem;
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.intro img {
    display: inline-block;
    margin: 1rem auto;
}

.intro .blue { color: #1565c0; font-weight: 600; }
.intro .red { color: var(--primary); font-weight: 600; }

.home-detail {
    padding: 2rem 1rem;
    max-width: 900px;
    margin: 0 auto;
}

.home-detail p { font-size: 1.05rem; }

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 2rem;
    padding: 3rem 1rem;
}

.feature {
    background: var(--light);
    padding: 2rem;
    border-radius: var(--radius);
    border-left: 5px solid var(--primary);
    transition: transform .2s, box-shadow .2s;
}

.feature:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.feature h3 { color: var(--primary); margin-bottom: .8rem; }
.feature p  { margin-bottom: 0; color: #444; }

.slogan {
    background: var(--dark);
    color: #fff;
    text-align: center;
    padding: 3rem 1rem;
    font-size: 1.25rem;
    font-style: italic;
}

.slogan p { max-width: 900px; margin: 0 auto; }

/* ---------- Videá ---------- */
.video-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.5rem;
    padding: 2rem 0;
}

.video-item {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.video-item iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

/* ---------- FAQ ---------- */
.faq-toc {
    margin: 1.5rem 0 2rem 1.4rem;
    padding: 0;
}

.faq-toc li { margin-bottom: .4rem; }

.faq-item {
    margin: 1.2rem 0;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
    line-height: 1.7;
}

.faq-item:last-child { border-bottom: none; }

.bigger {
    font-size: 1.1rem;
    color: var(--primary);
    display: inline-block;
    margin-bottom: .4rem;
}

/* ---------- Galéria ---------- */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1rem;
    padding: 1.5rem 0;
}

.gallery-imagebox {
    border-radius: 8px;
    overflow: hidden;
    box-shadow: 0 3px 10px rgba(0, 0, 0, .12);
    transition: transform .2s, box-shadow .2s;
    background: #fff;
}

.gallery-imagebox:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow);
}

.gallery-imagebox img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    display: block;
}

.gallery-image {
    display: inline-block;
    vertical-align: top;
    width: 32%;
    margin: 0 .5% 1.5rem;
}

.gallery-image-clear { clear: both; }

.gallery-title {
    display: block;
    text-align: center;
    margin-top: .5rem;
    font-weight: 600;
    color: var(--dark);
    text-decoration: none;
}

.gallery-title:hover { color: var(--primary); text-decoration: none; }

.gallery-categories {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
}

/* ---------- Certifikáty ---------- */
#gallery_bg { margin: 2rem 0; }

#gallegy_sliding_inner {
    display: flex;
    flex-wrap: wrap;
    gap: .6rem;
}

#gallegy_sliding_inner a { display: inline-block; }

#gallegy_sliding_inner img {
    width: 145px;
    height: auto;
    border: 1px solid var(--border);
    padding: 3px;
    background: #fff;
    border-radius: 4px;
    transition: transform .2s, box-shadow .2s;
}

#gallegy_sliding_inner img:hover {
    transform: scale(1.05);
    box-shadow: var(--shadow);
}

/* ---------- Kontakt ---------- */
.left  { float: left; }
.right { float: right; }
.clear { clear: both; }
.w350  { width: 350px; max-width: 100%; }

.left.w350, .right.w350 {
    padding: 1rem 0;
}

.dotted {
    border-bottom: 1px dotted var(--border);
    padding-bottom: .5rem;
    margin-bottom: .8rem;
}

.left img.left, .right img.left {
    margin-right: .6rem;
    vertical-align: middle;
    display: inline-block;
}

/* ---------- Technické info ---------- */
#tech-info-bg {
    background: var(--light);
    padding: 1.5rem;
    border-radius: var(--radius);
    margin: 2rem 0;
}

#tech-info-bg .left.w350,
#tech-info-bg .right.w350 {
    background: #fff;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, .05);
    box-sizing: border-box;
}

#tech-info-bg .left.w350 { width: calc(50% - .75rem); }
#tech-info-bg .right.w350 { width: calc(50% - .75rem); }

#tech-info-bg .strong {
    color: var(--primary);
    font-weight: 600;
}

/* ---------- Obsahové obrázky ---------- */
img.right {
    float: right;
    margin: 0 0 1rem 1.5rem;
    max-width: 260px;
    border-radius: 8px;
}

.content-img {
    max-width: 100%;
    border-radius: 8px;
    margin: 1rem 0;
}

.page-content h1 { margin-bottom: 1rem; }

.page-content hr {
    border: none;
    border-top: 1px solid var(--border);
    margin: 2rem 0;
}

/* ---------- Footer ---------- */
.site-footer {
    background: var(--dark);
    color: #ccc;
    text-align: center;
    padding: 2rem 1rem;
    margin-top: 3rem;
    font-size: .95rem;
}

.site-footer p { margin: .3rem 0; }

.site-footer a {
    color: var(--accent);
    text-decoration: none;
}

.site-footer a:hover { text-decoration: underline; }

/* ---------- Responzívne ---------- */
@media (max-width: 900px) {
    .main-nav ul {
        display: none;
        flex-direction: column;
        width: 100%;
        gap: .3rem;
        margin-top: 1rem;
    }

    .main-nav.open ul {
        display: flex;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--dark);
        padding: 1rem 1.5rem;
        box-shadow: 0 8px 20px rgba(0, 0, 0, .3);
    }

    .main-nav.open a { padding: .5rem 0; display: block; }

    .menu-toggle { display: block; }

    .hero h1 { font-size: 2rem; }
    .hero p  { font-size: 1rem; }

    .left.w350, .right.w350 {
        float: none;
        width: 100%;
        margin-bottom: 1.5rem;
    }

    #tech-info-bg .left.w350,
    #tech-info-bg .right.w350 {
        width: 100%;
        float: none;
        margin-bottom: 1rem;
    }

    .gallery-image { width: 48%; }
    img.right { float: none; max-width: 100%; margin: 1rem 0; }
}

@media (max-width: 600px) {
    h1 { font-size: 1.6rem; }
    .hero { padding: 3rem 1rem; }
    .hero h1 { font-size: 1.6rem; }
    .features { padding: 2rem 1rem; gap: 1rem; }
    .gallery-image { width: 100%; margin: 0 0 1rem; }
    .gallery-imagebox img { height: auto; }
    .video-grid { grid-template-columns: 1fr; }
}