/* CSS Variables for Premium Theme */
:root {
    --dark-green: #0a1a1a;
    --gold: #D4AF37;
    --light-gold: #f0e6d2;
    --off-white: #f5f5f5;
    --text-color: #c5c5c5;
    --font-main: 'Poppins', sans-serif;
}

html {
    scroll-behavior: smooth;
}

/* General Styles */
body {
    font-family: var(--font-main);
    line-height: 1.8;
    color: var(--text-color);
    background: radial-gradient(circle at top left, #1a3a3a, var(--dark-green));
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-main);
    color: var(--gold);
    font-weight: 700;
}

h2 {
    text-align: center;
    /* Responsive font size: min 2.2rem, preferred 4vw, max 3rem */
    font-size: clamp(2.2rem, 4vw, 3rem);
    margin-bottom: 50px;
}

section {
    padding: 80px 0;
    position: relative;
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

section.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Header */
.header {
    background-color: rgba(10, 26, 26, 0.65); /* Increased transparency */
    backdrop-filter: blur(10px);
    padding: 15px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid rgba(212, 175, 55, 0.2);
}

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

.logo {
    display: flex;
    align-items: center;
    text-decoration: none; /* Remove underline from link */
}

.logo img {
    height: 80px;
}

.logo span {
    font-size: 1.8rem;
    font-family: var(--font-main);
    font-weight: 700;
    color: var(--off-white);
    margin-left: 15px;
}

.navigation a {
    color: var(--off-white);
    text-decoration: none;
    margin-left: 30px;
    font-weight: 700;
    transition: color 0.3s;
    position: relative;
}

.navigation a:hover {
    color: var(--gold);
}

.navigation a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -5px;
    left: 0;
    background-color: var(--gold);
    transition: width 0.3s;
}

.navigation a:hover::after {
    width: 100%;
}

/* Language Switcher */
.nav-wrapper {
    display: flex;
    align-items: center;
}

.lang-switcher {
    margin-left: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 18px;
    padding: 3px;
    display: flex;
}

.lang-btn {
    background: none;
    border: none;
    color: var(--off-white);
    font-family: var(--font-main);
    font-weight: 700;
    font-size: 0.85rem;
    padding: 4px 9px;
    cursor: pointer;
    border-radius: 14px;
    transition: background-color 0.3s, color 0.3s;
}

.lang-btn:hover {
    background-color: rgba(255, 255, 255, 0.2);
}

.lang-btn.active {
    background-color: var(--gold);
    color: var(--dark-green);
}

/* Hero Section */
.hero {
    background: linear-gradient(rgba(10, 26, 26, 0.7), rgba(10, 26, 26, 0.9)), url('assets/Image1.jpg') no-repeat center center/cover;
    color: var(--off-white);
    text-align: center;
    padding: 60px 0 80px; /* Further reduced top padding */
    min-height: 70vh; /* Adjusted min-height */
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero h1 {
    /* Responsive font size: min 2.5rem, preferred 5vw, max 4.5rem */
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    color: var(--off-white);
    text-shadow: 2px 2px 10px rgba(0,0,0,0.5);
    margin-bottom: 10px; /* Reduced space */
}

.hero .mission {
    /* Responsive font size: min 1rem, preferred 2.5vw, max 1.3rem */
    font-size: clamp(1rem, 2.5vw, 1.3rem);
    max-width: 750px;
    margin: 10px auto 40px; /* Reduced top margin */
    line-height: 1.9;
}

/* Call to Action Button */
.cta-button {
    background: linear-gradient(45deg, var(--gold), #C9B254);
    color: var(--dark-green);
    padding: 18px 35px;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    transition: transform 0.3s, box-shadow 0.3s;
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.2);
}

.cta-button:hover {
    transform: translateY(-3px);
    box-shadow: 0 7px 20px rgba(212, 175, 55, 0.4);
}

/* Card-based sections */
.about, .services, .why-us, .contacts {
    background-color: transparent;
}

.card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 15px;
    padding: 30px;
    transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

/* Why Us Section */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-item {
    text-align: center;
    padding: 20px;
}

.feature-icon svg {
    color: var(--gold);
    margin-bottom: 20px;
}

.feature-item h3 {
    font-size: 1.8rem;
    margin-bottom: 10px;
}

/* Services Section */
.service-columns {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.service-column {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(212, 175, 55, 0.2);
    border-radius: 15px;
    padding: 40px;
}

.service-column h3 {
    font-size: 2rem;
    margin-bottom: 25px;
}

.service-column ul {
    list-style: none;
    padding: 0;
}

.service-column ul li {
    margin-bottom: 15px;
    padding-left: 25px;
    position: relative;
}

.service-column ul li::before {
    content: '◆';
    position: absolute;
    left: 0;
    color: var(--gold);
    font-size: 0.8rem;
    top: 5px;
}

.contact-info a {
    color: var(--gold);
    text-decoration: none;
    transition: opacity 0.3s;
}

.contact-info a:hover {
    opacity: 0.8;
}

.contact-form input,
.contact-form textarea {
    padding: 15px;
    border: 1px solid rgba(212, 175, 55, 0.3);
    border-radius: 8px;
    font-family: var(--font-main);
    background-color: rgba(10, 26, 26, 0.5);
    color: var(--off-white);
    width: 100%;
    box-sizing: border-box;
    margin-bottom: 20px;
}

.contact-form button {
    display: block;
    width: 100%;
}

/* Footer */
.footer {
    background-color: var(--dark-green);
    color: var(--text-color);
    text-align: center;
    padding: 40px 0;
    border-top: 1px solid rgba(212, 175, 55, 0.2);
}

.footer a {
    color: var(--gold);
}

/* Responsive Design */
@media (max-width: 768px) {
    h1 { font-size: 3rem; }
    h2 { font-size: 2.5rem; }
    .service-columns { grid-template-columns: 1fr; }

    .header-content {
        flex-wrap: wrap;
        justify-content: center;
    }

    .logo {
        margin-bottom: 20px;
    }

    .nav-wrapper {
        width: 100%;
        justify-content: center;
        order: 3; /* Puts it below logo and burger */
        flex-direction: column; /* Добавлено для вертикального расположения */
    }

    .navigation {
        display: flex; /* Ensure flex context for vertical alignment */
        flex-direction: column;
        width: 100%;
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.5s ease-in-out, opacity 0.5s ease-in-out;
        opacity: 0;
        align-items: center;
        margin-top: 10px;
    }

    .navigation.nav-open {
        max-height: 300px; /* Adjust based on content */
        opacity: 1;
    }

    .navigation a {
        margin: 15px 0; /* Увеличено расстояние между элементами меню */
        font-size: 1.2rem;
    }

    .lang-switcher {
        margin-left: 0;
        margin-top: 20px;
    }

    .burger-menu {
        display: flex;
        flex-direction: column;
        justify-content: space-around;
        width: 30px;
        height: 25px;
        cursor: pointer;
        position: absolute;
        right: 20px;
        top: 50%;
        transform: translateY(-50%);
        z-index: 1001; /* Ensure it's above other elements */
        background: transparent;
        border: none;
        padding: 0;
    }

    .burger-bar {
        width: 100%;
        height: 3px;
        background-color: var(--gold);
        border-radius: 2px; /* Make it softer */
        transition: transform 0.4s cubic-bezier(0.23, 1, 0.32, 1), opacity 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    }

    .burger-menu.active .burger-bar:nth-child(1) {
        transform: translateY(11px) rotate(45deg);
    }

    .burger-menu.active .burger-bar:nth-child(2) {
        opacity: 0;
    }

    .burger-menu.active .burger-bar:nth-child(3) {
        transform: translateY(-11px) rotate(-45deg);
    }
}

@media (min-width: 769px) {
    .burger-menu {
        display: none;
    }
}

/* Scroll to Top Button */
#scroll-to-top-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    z-index: 100;
    border: none;
    outline: none;
    background-color: var(--gold);
    color: var(--dark-green);
    cursor: pointer;
    padding: 0; /* Reset padding */
    border-radius: 50%;
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: opacity 0.3s, visibility 0.3s, transform 0.3s;
}

#scroll-to-top-btn.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

#scroll-to-top-btn:hover {
    background-color: #c9b254; /* A slightly darker gold */
}

#scroll-to-top-btn svg {
    width: 24px;
    height: 24px;
}

/* Modal Styles */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(5px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s, visibility 0.3s;
}

.modal-overlay.visible {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--dark-green);
    padding: 40px;
    border-radius: 15px;
    border: 1px solid rgba(212, 175, 55, 0.3);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
    text-align: center;
    max-width: 500px;
    width: 90%;
    position: relative;
    transform: scale(0.9);
    transition: transform 0.3s;
}

.modal-overlay.visible .modal-content {
    transform: scale(1);
}

.modal-close-btn {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    color: var(--off-white);
    font-size: 2rem;
    cursor: pointer;
}

#status-modal-message {
    margin-bottom: 30px;
    font-size: 1.1rem;
    line-height: 1.7;
}

#status-modal-ok-btn {
    width: 50%;
    margin: 0 auto;
}