.header {
    background-color: white;
    border-bottom: 1px solid hsl(var(--border));
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header__container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 4rem;
}

.header__brand {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    white-space: nowrap;
}

.header__brand-icon {
    color: var(--brand-accent);
    width: 28px;
    height: 28px;
    flex-shrink: 0;
}

.header__brand-main {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--brand-primary);
}

.header__brand-subtitle {
    font-size: 1rem;
    font-weight: 400;
    color: var(--warm-gray);
}

.header__nav-list {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.header__nav-link {
    color: var(--warm-gray);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: color 0.3s ease;
    position: relative;
}

.header__nav-link:hover {
    color: var(--brand-accent);
}

.header__contacts {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.header__contact {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.header__contact--phone {
    color: var(--warm-gray);
}

.header__contact--telegram {
    font-weight: 600;
    color: var(--brand-accent);
}

.header__icon {
    width: 1.2rem;
    height: 1.2rem;
    display: inline-block;
    background-color: currentColor;
    mask-size: contain;
    mask-position: center;
    mask-repeat: no-repeat;
}

.header__icon--phone {
    mask-image: url("data:image/svg+xml;base64,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");
}

.header__icon--telegram {
    mask-image: url("data:image/svg+xml;base64,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");
}

/* Бургер меню */
.header__burger {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.header__burger-line {
    width: 25px;
    height: 3px;
    background-color: var(--brand-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
}

.header__burger.active .header__burger-line:nth-child(1) {
    transform: rotate(45deg) translate(6px, 6px);
}

.header__burger.active .header__burger-line:nth-child(2) {
    opacity: 0;
}

.header__burger.active .header__burger-line:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* Responsive design for mobile */
@media (max-width: 768px) {
    .header__container {
        position: relative;
        justify-content: space-between;
        align-items: center;
    }
    
    .header__burger {
        display: flex;
    }
    
    .header__nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        border-radius: 0 0 12px 12px;
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease;
        z-index: 1000;
    }
    
    .header__nav.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .header__nav-list {
        flex-direction: column;
        gap: 0;
        padding: 20px;
    }
    
    .header__nav-item {
        border-bottom: 1px solid #f0f0f0;
    }
    
    .header__nav-item:last-child {
        border-bottom: none;
    }
    
    .header__nav-link {
        display: block;
        padding: 15px 0;
        font-size: 1.1rem;
    }
    
    .header__contacts {
        display: none;
    }
}

@media (max-width: 480px) {
    .header__container {
        padding: 0 15px;
    }
    
    .header__brand-main {
        font-size: 1.5rem;
    }
    
    .header__brand-subtitle {
        font-size: 0.8rem;
    }
    
    .header__contacts {
        display: none;
    }
}