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

html, body {
    height: 100%;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    overflow: hidden;
}

.splitter {
    display: flex;
    height: 100vh;
    width: 100vw;
    position: relative;
}

/* ---------- LEVÁ / PRAVÁ POLOVINA ---------- */
.side {
    flex: 1;
    position: relative;
    overflow: hidden;
    text-decoration: none;
    color: #fff;
    cursor: pointer;
}

.side--shop {
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    /* po dodání obrázku: background-image: url('../img/home/eshop-bg.jpg'); */
}

.side--gym {
    background: linear-gradient(135deg, #b30000 0%, #ff1a1a 100%);
    /* po dodání obrázku: background-image: url('../img/home/gym-bg.jpg'); */
}

.side {
    background-size: cover;
    background-position: center;
}

/* ---------- TMAVÉ OVERLAY ---------- */
.side__overlay {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.45);
    transition: background 0.4s ease;
    z-index: 1;
}

.side:hover .side__overlay {
    background: rgba(0, 0, 0, 0.15);
}

/* ---------- OBSAH UVNITŘ POLOVINY ---------- */
.side__content {
    position: relative;
    z-index: 2;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2rem;
    transition: transform 0.4s ease;
}

.side:hover .side__content {
    transform: scale(1.05);
}

.side__label {
    font-size: 0.9rem;
    letter-spacing: 0.4em;
    text-transform: uppercase;
    opacity: 0.8;
    margin-bottom: 1rem;
}

.side__title {
    font-size: clamp(3rem, 8vw, 7rem);
    font-weight: 900;
    letter-spacing: 0.1em;
    margin-bottom: 1.5rem;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
}

.side__desc {
    font-size: 1.1rem;
    max-width: 400px;
    margin-bottom: 2.5rem;
    opacity: 0.9;
    line-height: 1.5;
}

.side__cta {
    display: inline-block;
    padding: 1rem 2.5rem;
    border: 2px solid #fff;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    font-size: 0.95rem;
    transition: background 0.3s ease, color 0.3s ease;
}

.side:hover .side__cta {
    background: #fff;
    color: #000;
}

/* ---------- LOGO UPROSTŘED ---------- */
.logo {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 10;
    pointer-events: none;
}

.logo__img {
    width: clamp(110px, 14vw, 180px);
    height: auto;
    display: block;
    -webkit-filter: drop-shadow(0 4px 20px rgba(0, 0, 0, 0.6));
    filter: drop-shadow(0 4px 20px rgba(0, 0, 0, 0.6));
}

/* ---------- MOBIL ---------- */
@media (max-width: 768px) {
    .splitter {
        flex-direction: column;
        height: 100dvh; /* mobil: 50 % = skutečný viditelný střed (i s address barem) */
    }

    .side__title {
        font-size: 3rem;
    }

    .logo {
        top: 50%;
    }

    .logo__img {
        width: 100px;
    }
}