/* Top Navigation Styles */
#topnav {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 50;
    width: 100%;
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

.topnav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1rem;
    height: 4rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo / Brand */
.topnav-brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.25rem;
    transition: opacity 0.2s;
}

.topnav-brand:hover {
    opacity: 0.8;
}

/* Desktop Navigation */
.topnav-menu {
    display: none; /* Hidden on mobile by default */
    align-items: center;
    gap: 1.5rem;
}

@media (min-width: 768px) {
    .topnav-menu {
        display: flex;
    }
}

.topnav-link {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.875rem;
    cursor: pointer;
    padding: 0.5rem 0.75rem;
    border-radius: 0.375rem;
    transition: all 0.2s;
}

.topnav-link:hover,
.topnav-link.active {
    color: var(--primary);
    background-color: var(--bg-primary);
}

/* Controls Section (Language, Theme) */
.topnav-controls {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

#themeToggle {
    width: 2.1rem;
    height: 2.1rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 0.65rem;
    border: 1px solid var(--border-color);
    background-color: var(--bg-primary);
    color: var(--text-secondary);
    transition: background-color 0.2s ease, transform 0.2s ease, color 0.2s ease;
}

#themeToggle:hover {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    transform: translateY(-1px);
}

[data-theme="dark"] #themeToggle {
    background-color: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.25);
    color: var(--text-primary);
}

[data-theme="dark"] #themeToggle:hover {
    background-color: rgba(255, 255, 255, 0.16);
}

/* Mobile Hamburger */
.topnav-hamburger {
    display: block;
    padding: 0.5rem;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 0.375rem;
}

.topnav-hamburger:hover {
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

@media (min-width: 768px) {
    .topnav-hamburger {
        display: none;
    }
}

/* Mobile Menu Dropdown */
.topnav-mobile-menu {
    display: none;
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem;
    position: absolute;
    top: 4rem;
    left: 0;
    width: 100%;
    flex-direction: column;
    gap: 0.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.topnav-mobile-menu.open {
    display: flex;
}

.topnav-mobile-link {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
    font-weight: 500;
    border-radius: 0.375rem;
    cursor: pointer;
}

.topnav-mobile-link:hover,
.topnav-mobile-link.active {
    background-color: var(--bg-primary);
    color: var(--primary);
}

.template-link.active {
    background-color: var(--bg-primary);
    color: var(--primary);
}