.card-nav-container {
    position: sticky;
    top: 1rem;
    margin: 10px auto 30px auto;
    width: 95%;
    max-width: 1100px;
    z-index: 999;
}

.card-nav {
    height: 65px;
    background-color: var(--nav-bg);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    box-shadow: var(--shadow-sm);
    position: relative;
    overflow: hidden;
    transition: border-color 0.3s ease;
}

.card-nav-top {
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 65px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 1.25rem;
    z-index: 2;
}

.hamburger-menu {
    display: flex;
    flex-direction: column;
    justify-content: center;
    cursor: pointer;
    gap: 6px;
    width: 32px;
    height: 32px;
}

.hamburger-line {
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: transform 0.3s ease, background-color 0.3s ease;
}

.logo-container {
    position: absolute;
    left: 50%; top: 50%;
    transform: translate(-50%, -50%);
}

.logo-text { 
    font-weight: 600; 
    font-size: 1.15rem; 
    color: var(--text-primary);
}

.nav-right-group { 
    display: flex; 
    align-items: center; 
    gap: 12px; 
}

.translate-btn, .theme-toggle-btn {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 6px 14px;
    border-radius: 30px;
    font-size: 0.85rem;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.translate-btn:hover, .theme-toggle-btn:hover {
    background-color: var(--border-color);
}

.theme-toggle-btn { 
    width: 38px; 
    height: 38px; 
    padding: 0; 
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.theme-icon { display: none; font-size: 1rem; }
body:not(.dark-mode) .moon-icon { display: inline; }
body.dark-mode .sun-icon { display: inline; }

.card-nav-cta-button {
    background-color: var(--btn-bg);
    color: var(--btn-text);
    padding: 8px 18px;
    border-radius: 0.75rem;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.card-nav-cta-button:hover {
    opacity: 0.9;
    transform: scale(1.02);
}

.card-nav-content {
    position: absolute;
    top: 65px; left: 0; right: 0; bottom: 0;
    padding: 0.75rem 1.25rem;
    display: flex;
    gap: 12px;
    visibility: hidden;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.card-nav.open .card-nav-content { 
    visibility: visible; 
    opacity: 1;
}

.nav-card {
    flex: 1;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 0.75rem;
    padding: 12px 16px;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-sm);
}

.nav-card-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 600;
    margin-bottom: 6px;
}

.nav-card-links {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.nav-card-link { 
    color: var(--text-primary); 
    text-decoration: none; 
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s ease;
}

.nav-card-link:hover {
    color: var(--accent-color);
}

@media (max-width: 768px) {
    .logo-container {
        display: none; /* ซ่อนโลโก้ตรงกลางบนจอมือถือ เพื่อไม่ให้เบียดปุ่ม */
    }
}