/* Theme switch — header control */
.ed-theme-toggle {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    flex-shrink: 0;
    padding: 0.35rem;
    border: 1px solid var(--hx-border-soft);
    border-radius: 99px;
    background: var(--hx-accent-dim);
    cursor: pointer;
    font-family: inherit;
    transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.ed-theme-toggle:hover {
    border-color: var(--hx-accent);
    box-shadow: 0 0 16px var(--hx-accent-glow);
}

.ed-theme-toggle:focus-visible {
    outline: 2px solid var(--hx-accent);
    outline-offset: 2px;
}

.ed-theme-toggle-track {
    position: relative;
    width: 2.75rem;
    height: 1.5rem;
    border-radius: 99px;
    background: var(--hx-surface-2);
    border: 1px solid var(--hx-border-soft);
    flex-shrink: 0;
}

.ed-theme-toggle-thumb {
    position: absolute;
    top: 50%;
    inset-inline-end: 0.2rem;
    width: 1.1rem;
    height: 1.1rem;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--hx-accent), var(--hx-accent-2));
    box-shadow: 0 2px 8px var(--hx-accent-glow);
    transform: translateY(-50%);
    transition: inset-inline-end 0.3s var(--hx-ease-spring), transform 0.3s var(--hx-ease-spring);
}

html.light-theme .ed-theme-toggle-thumb {
    inset-inline-end: calc(100% - 1.1rem - 0.2rem);
}

.ed-theme-toggle-icons {
    display: flex;
    align-items: center;
    gap: 0.15rem;
    font-size: 0.7rem;
    color: var(--hx-text-dim);
    padding: 0 0.15rem;
}

.ed-theme-toggle-icons .fa-sun {
    color: var(--hx-accent);
    opacity: 0.35;
}

.ed-theme-toggle-icons .fa-moon {
    color: var(--hx-text-muted);
    opacity: 0.7;
}

html.light-theme .ed-theme-toggle-icons .fa-sun {
    opacity: 1;
    color: var(--hx-accent);
}

html.light-theme .ed-theme-toggle-icons .fa-moon {
    opacity: 0.35;
    color: var(--hx-text-dim);
}

html.dark-theme .ed-theme-toggle-icons .fa-moon {
    opacity: 1;
    color: var(--hx-accent);
}

.ed-theme-toggle-label {
    display: none;
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--hx-text-muted);
    white-space: nowrap;
}

@media (min-width: 1200px) {
    .ed-theme-toggle-label {
        display: inline;
    }
}

@media (max-width: 479px) {
    .ed-theme-toggle-icons {
        display: none;
    }
}