:root {
    --green: #3bb54a;
    --green-dark: #2a8c36;
    --white: #fff;
    --gray: #f5f5f5;
    --text: #222;
    --shadow: 0 2px 8px rgba(0,0,0,0.07);
}

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

body {
    font-family: 'Segoe UI', Arial, sans-serif;
    color: var(--text);
    background: var(--gray);
    line-height: 1.6;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 16px;
}

.top-bar {
    background: var(--green);
    color: var(--white);
    font-size: 0.95em;
    padding: 6px 0;
}

.top-bar .container {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    justify-content: flex-end;
}

.logo-nav {
    background: var(--white);
    box-shadow: var(--shadow);
}

.nav-flex {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 0;
}

.logo {
    font-size: 1.7em;
    font-weight: bold;
    letter-spacing: 1px;
}

.logo-green {
    color: var(--green);
}

nav ul {
    display: flex;
    gap: 28px;
    list-style: none;
}

nav a {
    text-decoration: none;
    color: var(--text);
    font-weight: 500;
    transition: color 0.2s;
}

nav a:hover {
    color: var(--green-dark);
}

#menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 2em;
    margin-left: 18px;
    cursor: pointer;
}

.hero {
    position: relative;
    min-height: 340px;
    background: var(--green-dark);
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: url('https://images.unsplash.com/photo-1464983953574-0892a716854b?auto=format&fit=crop&w=1200&q=80') center/cover no-repeat;
    opacity: 0.25;
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 60px 0 40px 0;
}

.hero h1 {
    font-size: 2.5em;
    margin-bottom: 18px;
    font-weight: bold;
}

.hero p {
    font-size: 1.2em;
    max-width: 600px;
    margin: 0 auto;
}

.sluzby {
    background: var(--white);
    padding: 50px 0 40px 0;
}

.sluzby h2 {
    text-align: center;
    margin-bottom: 36px;
    color: var(--green-dark);
}

.sluzby-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
    gap: 22px;
}

.sluzba {
    background: var(--gray);
    border-left: 5px solid var(--green);
    padding: 22px 18px;
    font-size: 1.1em;
    font-weight: 500;
    border-radius: 7px;
    box-shadow: var(--shadow);
    min-height: 70px;
    display: flex;
    align-items: center;
    justify-content: flex-start;
}

.sluzba a {
    color: var(--green-dark);
    text-decoration: underline;
    font-size: 0.95em;
}

.onas {
    background: var(--gray);
    padding: 50px 0 40px 0;
}

.onas h2 {
    color: var(--green-dark);
    margin-bottom: 32px;
    text-align: center;
}

.onas-flex {
    display: flex;
    flex-wrap: wrap;
    gap: 36px;
    align-items: flex-start;
    justify-content: center;
}

.onas-foto {
    flex: 1 1 220px;
    display: flex;
    flex-direction: column;
    gap: 18px;
    min-width: 180px;
    max-width: 260px;
}

.onas-foto img {
    width: 100%;
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.onas-text {
    flex: 2 1 340px;
    font-size: 1.1em;
    min-width: 220px;
}

.kontakt {
    background: var(--white);
    padding: 40px 0 30px 0;
    text-align: center;
}

.kontakt h2 {
    color: var(--green-dark);
    margin-bottom: 18px;
}

footer {
    background: var(--green-dark);
    color: var(--white);
    text-align: center;
    padding: 16px 0;
    font-size: 0.98em;
    margin-top: 30px;
}

/* Responsive */
@media (max-width: 900px) {
    .onas-flex {
        flex-direction: column;
        align-items: center;
    }
    .nav-flex {
        flex-direction: column;
        gap: 12px;
    }
}

@media (max-width: 700px) {
    .sluzby-grid {
        grid-template-columns: 1fr;
    }
    .hero-content {
        padding: 40px 0 30px 0;
    }
    .logo {
        font-size: 1.2em;
    }
}

@media (max-width: 600px) {
    nav ul {
        display: none;
        flex-direction: column;
        background: var(--white);
        position: absolute;
        top: 60px;
        right: 16px;
        box-shadow: var(--shadow);
        border-radius: 7px;
        min-width: 140px;
        z-index: 10;
    }
    nav ul.open {
        display: flex;
    }
    #menu-toggle {
        display: inline;
    }
    .nav-flex {
        flex-direction: row;
        gap: 0;
    }
}