.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background:#fff;
    backdrop-filter: blur(24px);
    z-index: 999;
    padding: 14px 0;
    border-bottom: 2px solid rgba(212, 168, 83, 0.35);
    transition: all 0.4s ease;
}
.site-header.scrolled { padding: 8px 0; background:#fff; }
.header-inner {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 10px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}
.header-logo img { height: 58px; width: auto; }
.main-nav { display: flex; gap: 25px; list-style: none; align-items: center; }
.main-nav a {
    color: #000;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    font-size: 14px;
    /*letter-spacing: 0.08em;*/
    text-transform: uppercase;
}
.main-nav .login-item {
    margin-left: 16px;
}
.main-nav .login-btn {
    background: #d4a853;
    color: #0d2137;
    padding: 8px 20px;
    border-radius: 6px;
    font-weight: 600;
    font-size: 12px;
    text-decoration: none;
    transition: all 0.3s ease;
    border: 2px solid #d4a853;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    display: inline-flex;
    align-items: center;
    height: auto;
    line-height: 1.4;
}
.main-nav .login-btn:hover {
    background: transparent;
    color: #d4a853;
}
.main-nav a:hover, .main-nav a.active { color: #d4a853; }
.main-nav a::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, #d4a853, #e5c784);
    border-radius: 2px;
    transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.main-nav a:hover::after, .main-nav a.active::after { width: 100%; }
.nav-toggle { display: none; background: none; border: none; color: #ffffff; font-size: 28px; cursor: pointer; padding: 8px; z-index: 1001; }
.nav-toggle span {
    display: block;
    width: 28px;
    height: 3px;
    background: #000;
    margin: 5px 0;
    transition: all 0.3s ease;
    border-radius: 2px;
}
.nav-toggle.active span:nth-child(1) { transform: rotate(-45deg) translate(-6px, 6px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(45deg) translate(-6px, -6px); }
html, body { overflow-x: hidden; }

@media (max-width: 767px) {
    .main-nav {
        display: none;
        position: fixed;
        top: 0;
        right: 0;
        width: 280px;
        height: 100vh;
        background: rgba(13, 33, 55, 0.98);
        backdrop-filter: blur(24px);
        padding: 50px 30px 30px;
        flex-direction: column;
        gap: 0;
        z-index: 1000;
        transform: translateX(100%);
        transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        list-style: none;
        align-items: flex-start;
    }
    .main-nav.active { display: flex; transform: translateX(0); background:#fff; }
    .main-nav li { text-align: left; }
    .main-nav a { font-size: 16px; padding: 14px 0; border-bottom: 1px solid rgba(212, 168, 83, 0.1); text-align: left; display: block; }
    .main-nav .login-item { margin-left: 0; margin-top: 16px; }
    .main-nav .login-btn {
        background: #d4a853;
        color: #0d2137;
        padding: 14px 20px;
        border-radius: 8px;
        font-weight: 600;
        font-size: 15px;
        text-align: left;
        display: block;
        border: none;
        text-decoration: none;
        letter-spacing: 0.08em;
        text-transform: uppercase;
    }
    .main-nav .login-btn:hover {
        background: #e5c784;
        color: #0d2137;
    }
    .nav-toggle { display: block; }
}