@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800;900&display=swap');

.site-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(79, 143, 255, 0.1);
    box-shadow: 0 1px 12px rgba(0, 0, 0, 0.04);
}

.site-nav-container {
    max-width: 1160px;
    margin: 0 auto;
    padding: 0 24px;
    height: 64px;
    display: flex;
    align-items: center;
    gap: 32px;
}

.site-nav-logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    text-decoration: none;
}

.site-nav-logo img {
    height: 36px;
    width: auto;
    display: block;
}

.site-nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
    flex: 1;
}

.site-nav-link {
    padding: 8px 14px;
    font-size: 14px;
    font-weight: 500;
    color: #6B7280;
    text-decoration: none;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.site-nav-link:hover {
    color: #4F8FFF;
    background: rgba(79, 143, 255, 0.07);
}

.site-nav-link.active {
    color: #4F8FFF;
    background: rgba(79, 143, 255, 0.08);
    font-weight: 600;
}

.site-nav-auth {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
    flex-shrink: 0;
}

.site-nav-login {
    display: inline-flex;
    align-items: center;
    padding: 8px 18px;
    font-size: 14px;
    font-weight: 600;
    color: #4F8FFF;
    background: transparent;
    border: 1.5px solid rgba(79, 143, 255, 0.35);
    border-radius: 10px;
    text-decoration: none;
    white-space: nowrap;
    transition: all 0.3s ease;
}

.site-nav-login:hover {
    background: rgba(79, 143, 255, 0.07);
    border-color: #4F8FFF;
}

.site-nav-register {
    display: inline-flex;
    align-items: center;
    padding: 9px 18px;
    font-size: 14px;
    font-weight: 600;
    color: #FFFFFF;
    background: linear-gradient(135deg, #4F8FFF, #7B61FF);
    border-radius: 10px;
    text-decoration: none;
    white-space: nowrap;
    transition: all 0.25s ease;
    box-shadow: 0 2px 8px rgba(79, 143, 255, 0.3);
}

.site-nav-register:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 16px rgba(79, 143, 255, 0.4);
}

.site-nav-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: transparent;
    border: 1px solid #E5E7EB;
    border-radius: 10px;
    cursor: pointer;
    padding: 0;
    margin-left: auto;
    transition: border-color 0.2s ease;
}

.site-nav-hamburger:hover {
    border-color: #4F8FFF;
}

.site-nav-hamburger span {
    display: block;
    width: 18px;
    height: 2px;
    background: #6B7280;
    border-radius: 2px;
    transition: all 0.25s ease;
}

.site-nav-mobile {
    display: none;
    flex-direction: column;
    padding: 12px 16px 16px;
    border-top: 1px solid rgba(79, 143, 255, 0.1);
    background: rgba(255, 255, 255, 0.97);
}

.site-nav-mobile.open {
    display: flex;
}

.site-nav-mobile-link {
    padding: 12px 14px;
    font-size: 15px;
    font-weight: 500;
    color: #6B7280;
    text-decoration: none;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.site-nav-mobile-link:hover,
.site-nav-mobile-link.active {
    color: #4F8FFF;
    background: rgba(79, 143, 255, 0.07);
}

.site-nav-mobile-auth {
    display: flex;
    gap: 8px;
    margin-top: 8px;
}

.site-nav-mobile-login {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px 16px;
    font-size: 15px;
    font-weight: 600;
    color: #4F8FFF;
    border: 1.5px solid rgba(79, 143, 255, 0.35);
    border-radius: 10px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.site-nav-mobile-login:hover {
    background: rgba(79, 143, 255, 0.07);
    border-color: #4F8FFF;
}

.site-nav-mobile-register {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px 16px;
    font-size: 15px;
    font-weight: 600;
    color: #FFFFFF;
    background: linear-gradient(135deg, #4F8FFF, #7B61FF);
    border-radius: 10px;
    text-decoration: none;
    transition: all 0.25s ease;
    box-shadow: 0 2px 8px rgba(79, 143, 255, 0.3);
}

@media (max-width: 768px) {
    .site-nav-links,
    .site-nav-auth {
        display: none;
    }

    .site-nav-hamburger {
        display: flex;
    }
}

/* ── Dark Mode ────────────────────────────────────────────── */
html.dark-mode .site-nav {
    background: rgba(0, 0, 0, 0.9);
    border-bottom-color: #1f1f1f;
    box-shadow: 0 1px 0 #1f1f1f;
}

html.dark-mode .site-nav-link {
    color: #888888;
}

html.dark-mode .site-nav-link:hover {
    color: #ededed;
    background: rgba(255, 255, 255, 0.06);
}

html.dark-mode .site-nav-link.active {
    color: #ededed;
    background: rgba(255, 255, 255, 0.08);
    font-weight: 600;
}

html.dark-mode .site-nav-login {
    color: #ededed;
    border-color: #333333;
    background: transparent;
}

html.dark-mode .site-nav-login:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: #555555;
    color: #ffffff;
}

html.dark-mode .site-nav-hamburger {
    border-color: #333333;
}

html.dark-mode .site-nav-hamburger:hover {
    border-color: #555555;
}

html.dark-mode .site-nav-hamburger span {
    background: #888888;
}

html.dark-mode .site-nav-mobile {
    background: #000000;
    border-top-color: #1f1f1f;
}

html.dark-mode .site-nav-mobile-link {
    color: #888888;
}

html.dark-mode .site-nav-mobile-link:hover,
html.dark-mode .site-nav-mobile-link.active {
    color: #ededed;
    background: rgba(255, 255, 255, 0.06);
}

html.dark-mode .site-nav-mobile-login {
    color: #ededed;
    border-color: #333333;
}

html.dark-mode .site-nav-mobile-login:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: #555555;
}