/* ===== ZÁKLADNÉ NASTAVENIA A PREMENNÉ ===== */
:root {

    --primary-color: #0a4d68; /* Tmavomodrá */
    --secondary-color: #088395; /* Tyrkysová/Zelenomodrá */
    --accent-color: #34e7a2; /* Svetlozelený akcent */
    --dark-grey: #333;
    --light-grey: #f4f4f4;
    --white-color: #ffffff;
    --font-family: 'Poppins', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    margin: 0;
    padding: 0;
    line-height: 1.7;
    color: var(--dark-grey);
    background-color: var(--white-color);
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

h2, h3 {
    font-weight: 700;
    color: var(--primary-color);
}

h1 {
    font-weight: 700;
    color: var(--white-color);
}


h1 { font-size: 3rem; margin-bottom: 1rem; }
h2 { font-size: 2.5rem; text-align: center; margin-bottom: 1rem; }
p.section-subtitle { text-align: center; max-width: 600px; margin: 0 auto 3rem auto; color: #555;}

section, footer {
    padding: 5rem 0;
}

/* ===== HLAVIČKA A NAVIGÁCIA ===== */
.main-header {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid #eee;
    padding: 1rem 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}

.main-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.main-nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    gap: 1.5rem;
}

.main-nav a {
    text-decoration: none;
    color: var(--dark-grey);
    font-weight: 600;
    transition: color 0.3s ease;
}

.main-nav a:hover {
    color: var(--secondary-color);
}

/* ===== HERO BANNER SEKCIA ===== */
#hero {
    background: linear-gradient(rgba(130, 178, 197, 0.055), rgba(12, 37, 49, 0.637)), url('septico-big.jpg') no-repeat center center/cover;
    /* background:  url('septico-big.jpg') no-repeat center center/cover;  */
    height: 90vh;
    min-height: 500px;
    color: var(--white-color);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: 80px; /* Kvôli fixnej hlavičke */
}

.hero-content {
    max-width: 800px;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

.cta-button {
    background-color: var(--accent-color);
    color: var(--primary-color);
    padding: 1rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    transition: transform 0.3s ease, background-color 0.3s ease;
    display: inline-block;
    box-shadow: 0.3em 0.3em 1em rgb(255 255 255 / 60%);
}

.cta-button:hover {
    background-color: #2ce095;
    transform: translateY(-3px);
}

/* Úvodná animácia pre Hero sekciu */
.animate-on-load {
    animation: fadeInUp 0.8s ease-out forwards;
    opacity: 0;
}
.animate-on-load:nth-child(1) { animation-delay: 0.2s; }
.animate-on-load:nth-child(2) { animation-delay: 0.4s; }
.animate-on-load:nth-child(3) { animation-delay: 0.6s; }

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
    from {
        opacity: 0;
        transform: translateY(20px);
    }
}

/* ===== O NÁS SEKCIA ===== */
#o-nas {
    background-color: var(--light-grey);
}

.principles {
    display: flex;
    justify-content: space-between;
    gap: 2rem;
    margin-top: 3rem;
}

.principle-card {
    background: var(--white-color);
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    flex-basis: 31%;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.principle-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.1);
}

.principle-card i {
    font-size: 3rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.principle-card h3 {
    margin-bottom: 0.5rem;
    font-size: 1.4rem;
}

/* ===== KONTAKT (PÄTIČKA) ===== */
#kontakt {
    background-color: var(--primary-color);
    color: var(--white-color);
    padding-bottom: 2rem;
}

#kontakt h2, #kontakt h3 {
    color: var(--white-color);
}

#kontakt .section-subtitle {
    color: rgba(255, 255, 255, 0.8);
}

.contact-info-button {
    align-items: center;
    gap: 1rem;
    font-size: 1.1rem;
    text-decoration: none;
    color: var(--primary-color);
    margin-left: 1em;
}

.contact-info {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 1.1rem;
}

.contact-item i {
    font-size: 1.5rem;
    color: var(--accent-color);
}

.contact-item a {
    color: var(--white-color);
    text-decoration: none;
    transition: color 0.3s ease;
}

.contact-item a:hover {
    color: var(--accent-color);
}

.copyright {
    text-align: center;
    margin-top: 4rem;
    font-size: 0.9rem;
    color: rgba(255, 255, 255, 0.6);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
    padding-top: 2rem;
}

/* ===== ANIMAČNÉ TRIEDY PRE JS ===== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}


/* ===== RESPONZÍVNY DIZAJN ===== */
@media (max-width: 768px) {
    h1 { font-size: 1.5rem; }
    h2 { font-size: 1rem; }
    
    .main-header .container {
        flex-direction: row;
        gap: 0.3rem;
    }

    #hero {
        height: auto;
        padding-top: 150px;
        padding-bottom: 50px;
    }

    .principles {
        flex-direction: column;
    }

    .contact-info {
        flex-direction: column;
        align-items: center;
        gap: 1.5rem;
    }

    .logo {
        font-size: 1.0rem;
        font-weight: 700;
        color: var(--primary-color);
        text-decoration: none;
    }

    .main-nav ul {
        list-style: none;
        margin: 100;
        padding: 100;
        display: flex;
        gap: 1.0rem;
	    font-size: 0.7rem;
    }

    .main-nav li:not(:first-child) {
        border-left: 2px solid var(--dark-grey);
        padding-left: 1.0rem;
    }

    #hero {
       background: linear-gradient(rgba(130, 178, 197, 0.055), rgba(12, 37, 49, 0.637)), url('septico-small.jpg') no-repeat center center/cover;
       height: 5vh;
       min-height: 200px
   }

}

/* ===== LOKALITY SEKCIA ===== */
#lokality {
    background-color: var(--white-color); /* Svetlé pozadie pre kontrast */
}

.locations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); /* Responzívna mriežka */
    gap: 1.5rem;
    margin-top: 3rem;
    text-align: left;
}

.location-item {
    background-color: var(--light-grey);
    padding: 1rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    color: var(--primary-color);
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: background-color 0.3s, color 0.3s;
}

.location-item:hover {
    background-color: var(--secondary-color);
    color: var(--white-color);
}

.location-item i {
    color: var(--accent-color);
    transition: color 0.3s;
}

.location-item:hover i {
    color: var(--white-color);
}