:root {
    --primary: #78D5F3;         /* világos kék */
    --heading-color: #4A93B8;    /* sötétebb kék a címsorokhoz */
    --secondary: #A0E8E4;       /* halvány türkiz */
    --accent: #B1EDD1;          /* halvány menta */
    --dark-accent: #5CB8B2;     /* középtónus türkiz */
    --text: #295755;            /* sötét türkiz, közel fekete */
    --light-bg: #F7FCFC;        /* szinte fehér, halvány türkiz árnyalattal */
    --white: #FFFFFF;           /* tiszta fehér */
    --light-shadow: rgba(120, 213, 243, 0.1); /* áttetsző kék árnyék */
    --footer-bg: #F0F7FA;       /* nagyon halvány kékes árnyalat a láblécnek */
    --footer-text: #4A93B8;     /* ugyanaz, mint a címsor szín, elegáns */
    --footer-border: #DBF0F7;   /* világos türkizes határ */
}

body {
    background-color: var(--light-bg);
    background-image: none;
    color: var(--text);
    font-family: 'Raleway', Arial, sans-serif;
    font-weight: 300;
    line-height: 1.7;
}

.main-image-container {
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    box-shadow: -10px 0 30px var(--light-shadow);
    transition: opacity 0.3s ease;
}

.main-image-container.sticky {
    position: sticky;
    top: 20px;
}

.main-image-container.no-hover {
    transform: none !important;
    transition: none !important;
}

.main-image-container.no-hover:hover {
    transform: none !important;
    box-shadow: 0 10px 30px var(--light-shadow) !important;
}

.main-image-container img {
    width: 100%;
    height: auto;
    display: block;
}

h1, h2, h3 {
    font-family: 'Quicksand', sans-serif;
    font-weight: 700;
    color: var(--heading-color);
    letter-spacing: 0;
    line-height: 1.2;
}

h4, h5, h6 {
    font-family: 'Quicksand', sans-serif;
    font-weight: 600;
    color: var(--heading-color);
}

p {
    line-height: 1.8;
}

a {
    color: var(--dark-accent);
    transition: all 0.3s ease;
    text-decoration: none;
    font-weight: 500;
}

a:hover {
    color: var(--primary);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

.nav-section {
    background-color: var(--white);
    border-bottom: 1px solid var(--secondary);
    box-shadow: 0 4px 12px var(--light-shadow);
}

.nav-link {
    font-family: 'Montserrat', sans-serif;
    font-weight: 500;
    color: var(--text) !important;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-size: 0.85rem;
    padding: 0 1.2rem;
    border-radius: 0;
    transition: all 0.3s ease;
    height: 100%;
    display: flex;
    align-items: center;
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background-color: var(--primary);
    transition: width 0.3s ease;
}

.nav-link:hover {
    color: var(--primary) !important;
    background-color: transparent;
}

.nav-link:hover::after {
    width: 100%;
}

.nav-link.active-nav {
    color: var(--primary) !important;
    font-weight: 600;
}

.nav-link.active-nav::after {
    width: 100%;
    background-color: var(--primary);
    height: 3px;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--white);
    border: none;
    padding: 0.6rem 1.5rem;
    border-radius: 50px;
    font-weight: 500;
    letter-spacing: 0.03em;
    transition: all 0.3s ease;
    box-shadow: 0 4px 12px var(--light-shadow);
}

.btn-primary:hover {
    background-color: var(--dark-accent);
    transform: translateY(-2px);
    box-shadow: 0 6px 15px var(--light-shadow);
}

.accent-color {
    color: var(--secondary);
}

.content-card {
    background-color: var(--white);
    border-radius: 12px;
    padding: 1rem 1rem 1.5rem;
    box-shadow: 0 6px 20px var(--light-shadow);
    transition: all 0.3s ease;
}

@media (min-width: 640px) {
    .content-card {
        padding: 2rem;
    }
}

.content-card:hover {
    box-shadow: 0 10px 30px var(--light-shadow);
}

.page-title {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    position: relative;
    display: inline-block;
}

.page-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 80px;
    height: 3px;
    background-color: var(--accent);
}

.footer-light {
    background-color: var(--footer-bg);
    color: var(--footer-text);
    border-top: 2px solid var(--footer-border);
    padding: 0;
    position: relative;
    min-height: 64px;
}

.footer-light::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(to right, var(--primary), var(--secondary), var(--accent));
    opacity: 0.5;
}

.footer-light .container {
    display: flex;
    width: 100%;
}

.footer-link {
    color: var(--heading-color);
    transition: all 0.3s ease;
    position: relative;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
}

.footer-link:hover {
    color: var(--primary);
}

@media (max-width: 768px) {
    .footer-light .grid {
        gap: 0.5rem;
        padding: 1rem 0;
    }
}

/* Vissza az oldal tetejére gomb */
.back-to-top-button {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background-color: var(--primary);
    color: var(--white);
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px var(--light-shadow);
    z-index: 999;
}

.back-to-top-button:hover {
    background-color: var(--dark-accent);
    transform: translateY(0) scale(1.05);
}

.back-to-top-button.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

/* Mobil nézet igazítások */
@media (max-width: 640px) {
    .back-to-top-button {
        width: 40px;
        height: 40px;
        bottom: 20px;
        right: 20px;
    }
}