:root {
    --bg: #0b0b0d;
    --card-bg: #16161a;
    --text: #f0f0f5;
    --text-sub: #8e8e99;
    --accent: #d4af37; /* Элегантный золотой акцент */
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

body {
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

/* Навигация */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 3rem;
    position: sticky;
    top: 0;
    background: rgba(11, 11, 13, 0.85);
    backdrop-filter: blur(12px);
    z-index: 100;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.logo {
    font-size: 1.8rem;
    font-weight: 800;
    color: #fff;
    text-decoration: none;
    letter-spacing: 2px;
}

.logo span { color: var(--accent); }

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-btn {
    color: var(--text-sub);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-btn:hover, .nav-btn.active {
    color: #fff;
}

.nav-btn.active {
    border-bottom: 2px solid var(--accent);
}

/* Тумблер языка */
.lang-switch {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.85rem;
    color: var(--text-sub);
}

.switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 22px;
}

.switch input { display: none; }

.slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background-color: #2a2a30;
    transition: .3s;
    border-radius: 20px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 3px;
    bottom: 3px;
    background-color: #fff;
    transition: .3s;
    border-radius: 50%;
}

input:checked + .slider { background-color: var(--accent); }
input:checked + .slider:before { transform: translateX(22px); }

/* Layout & Container */
.container {
    max-width: 1200px;
    margin: 3rem auto;
    padding: 0 1.5rem;
}

/* Hero Section */
.hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    padding: 4rem 3rem;
    min-height: 80vh;
}

.hero-content h1 {
    font-size: 3.5rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-content p {
    color: var(--text-sub);
    font-size: 1.2rem;
    margin-bottom: 2rem;
}

.btn {
    display: inline-block;
    padding: 0.9rem 2rem;
    background: var(--accent);
    color: #000;
    text-decoration: none;
    font-weight: 600;
    border-radius: 4px;
    transition: transform 0.3s, background 0.3s;
    border: none;
    cursor: pointer;
}

.btn:hover {
    transform: translateY(-3px);
    background: #e5be48;
}

.hero-image img {
    width: 100%;
    border-radius: 12px;
    filter: brightness(0.9);
    transition: filter 0.3s ease;
}

.hero-image img:hover {
    filter: brightness(1);
}

/* Избранные проекты */
.featured h2, .page-title {
    font-size: 2.2rem;
    margin-bottom: 2rem;
}

.featured-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.featured-card {
    position: relative;
    border-radius: 12px;
    overflow: hidden;
    height: 350px;
}

.featured-card img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.featured-card:hover img {
    transform: scale(1.05);
}

.overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(transparent, rgba(0,0,0,0.8));
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 2rem;
}

/* Плиточная галерея (Masonry Grid) */
.masonry-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

.masonry-item {
    overflow: hidden;
    border-radius: 8px;
    height: 280px;
}

.masonry-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.4s ease, filter 0.4s ease;
    filter: grayscale(20%);
}

.masonry-item:hover img {
    transform: scale(1.08);
    filter: grayscale(0%);
}

/* Страница About */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 4rem;
    align-items: start;
}

.about-img img {
    width: 100%;
    border-radius: 12px;
}

.about-text p {
    color: var(--text-sub);
    font-size: 1.1rem;
    margin: 1.5rem 0 2.5rem;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
}

.contact-form input, .contact-form textarea {
    background: #0f0f12;
    border: 1px solid rgba(255,255,255,0.1);
    padding: 0.8rem 1rem;
    color: #fff;
    border-radius: 6px;
    outline: none;
}

.contact-form input:focus, .contact-form textarea:focus {
    border-color: var(--accent);
}

/* Адаптируемость под мобильные устройства */
@media (max-width: 768px) {
    .hero, .about-grid, .featured-grid {
        grid-template-columns: 1fr;
    }
    .navbar { padding: 1rem 1.5rem; }
    .hero-content h1 { font-size: 2.5rem; }
}