:root {
    --nav-bg: #0b0e1f;
    --nav-border: #d4af3733;
    --nav-accent: #d4af37;
    --nav-text: #e9ebf3;
    --nav-text-muted: #9aa0b8;
}
body.theme-red {
    --nav-bg: #ffffff;
    --nav-border: #e3121f33;
    --nav-accent: #e3121f;
    --nav-text: #1a1a1a;
    --nav-text-muted: #7a7a7a;
}

html { scroll-behavior: smooth; }
* { box-sizing: border-box; }
body { margin: 0; font-family: Arial, Helvetica, sans-serif; background: var(--nav-bg); }
body.nav-open { overflow: hidden; }

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 12px 24px;
    background: var(--nav-bg);
    border-bottom: 1px solid var(--nav-border);
    box-shadow: 0 2px 10px rgba(0, 0, 0, .4);
    position: sticky;
    top: 0;
    z-index: 100;
}
.navbar .logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}
.navbar .logo .logo-img {
    height: 42px;
    width: auto;
    object-fit: contain;
}
.navbar .logo .logo-text {
    font-size: 15px;
    font-weight: 700;
    letter-spacing: .3px;
    color: var(--nav-text);
    white-space: nowrap;
}
.navbar .nav-toggle {
    display: none;
    position: relative;
    width: 40px;
    height: 40px;
    flex: 0 0 auto;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}
.navbar .nav-toggle-icon,
.navbar .nav-toggle-icon::before,
.navbar .nav-toggle-icon::after {
    position: absolute;
    left: 8px;
    right: 8px;
    height: 2px;
    background: var(--nav-text);
    border-radius: 2px;
    transition: transform .25s ease, opacity .25s ease, top .25s ease;
}
.navbar .nav-toggle-icon { top: 19px; }
.navbar .nav-toggle-icon::before { content: ''; top: -8px; }
.navbar .nav-toggle-icon::after { content: ''; top: 8px; }
.navbar .nav-toggle.open .nav-toggle-icon { background: transparent; }
.navbar .nav-toggle.open .nav-toggle-icon::before { top: 0; transform: rotate(45deg); }
.navbar .nav-toggle.open .nav-toggle-icon::after { top: 0; transform: rotate(-45deg); }
.navbar .nav-links {
    display: flex;
    align-items: center;
    gap: 28px;
    list-style: none;
    margin: 0;
    padding: 0;
}
.navbar .nav-links a {
    text-decoration: none;
    color: var(--nav-text);
    font-weight: 600;
    font-size: 15px;
    padding: 6px 2px;
    border-bottom: 2px solid transparent;
}
.navbar .nav-links a.active,
.navbar .nav-links a:hover { color: var(--nav-accent); border-bottom-color: var(--nav-accent); }

.page-image { display: block; width: 100%; height: auto; }

.nav-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, .55);
    z-index: 95;
    opacity: 0;
    transition: opacity .25s ease;
}
.nav-backdrop.open { display: block; opacity: 1; }

@media (max-width: 768px) {
    .navbar { padding: 10px 16px; }
    .navbar .nav-toggle { display: block; }
    .navbar .nav-links {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        gap: 0;
        max-height: 0;
        opacity: 0;
        overflow: hidden;
        background: var(--nav-bg);
        border-bottom: 1px solid var(--nav-border);
        box-shadow: 0 16px 28px rgba(0, 0, 0, .45);
        transition: max-height .3s ease, opacity .25s ease;
    }
    .navbar .nav-links.open { max-height: 360px; opacity: 1; }
    .navbar .nav-links a { display: block; padding: 16px 24px; border-bottom: 1px solid #80808022; }
}

@media (max-width: 480px) {
    .navbar .logo .logo-text { display: none; }
}

@media (max-width: 380px) {
    .navbar .logo .logo-img { height: 34px; }
}