/* Theme toggle button and confetti/effects selector styles.
   Toggle state managed by setupThemeToggle() in index.html */

/* Fixed bottom-left container housing the toggle button */
.theme-toggle-container {
    position: fixed;
    bottom: 10px;
    left: 10px;
    z-index: 2000;
}

/* Collapsible button that expands to reveal theme and effects selectors */
.theme-toggle-button {
    height: 40px;
    width: auto;
    max-width: 40px;
    padding: 0;
    background-color: var(--bg-secondary);
    border: none;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: var(--space-sm);
    cursor: pointer;
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    font-family: var(--font-family-lang, var(--font-family));
    overflow: hidden;
    white-space: nowrap;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
    position: relative;
    transition: max-width 0.3s cubic-bezier(0.4, 0, 0.2, 1),
                background-color 0.2s ease;
}

.theme-toggle-button.expanded {
    max-width: 1000px;
}

.theme-toggle-button:hover {
    background-color: var(--bg-hover);
}

.theme-toggle-button:active {
    box-shadow:
        inset 0 1px 3px rgba(0, 0, 0, 0.4),
        0 1px 2px rgba(0, 0, 0, 0.1);
}

.theme-toggle-button:focus {
    outline: 0px solid var(--text-link);
    outline-offset: 0px;
}

/* Sun icon shown when the button is collapsed */
.theme-icon {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    fill: none;
    flex-shrink: 0;
    margin-left: 10px;
    transition: opacity 0.2s ease, transform 0.2s ease;
}

.theme-toggle-button.expanded .theme-icon {
    opacity: 0;
    width: 0;
    height: 0;
    margin-left: 0px;
}

.theme-icon .sun-circle {
    stroke: var(--text-secondary);
    fill: none;
}

.theme-icon .sun-ray {
    stroke: var(--text-secondary);
    fill: none;
}

/* Selector content revealed when the toggle button is expanded */
.theme-button-content {
    display: flex;
    align-items: center;
    padding-right: var(--space-sm);
    gap: var(--space-sm);
    opacity: 1;
    transition: opacity 0.2s ease 0.1s;
}

.theme-toggle-button:not(.expanded) .theme-button-content {
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.15s ease;
}

/* Theme name selector within the expanded toggle */
.theme-selector {
    background-color: transparent;
    border: 0px solid var(--border-primary);
    border-radius: var(--radius-sm);
    padding: var(--space-xs) var(--space-sm);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
    font-family: var(--font-family-lang, var(--font-family));
}

.theme-selector:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

.theme-current {
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    white-space: nowrap;
    flex: 1;
}

.theme-divider {
    width: 1px;
    height: 24px;
    background-color: var(--border-primary);
    flex-shrink: 0;
}

.theme-dropdown-icon {
    width: 12px;
    height: 12px;
    stroke: var(--text-secondary);
    stroke-width: 2;
    stroke-linecap: round;
    stroke-linejoin: round;
    fill: none;
    flex-shrink: 0;
}

/* Animated theme label text shown on expand */
.theme-label {
    opacity: 0;
    max-width: 0;
    overflow: hidden;
    white-space: nowrap;
    transition: opacity 0.3s ease, max-width 0.3s ease;
    font-size: var(--font-size-sm);
    font-weight: 500;
}

.theme-toggle-button.expanded .theme-label {
    opacity: 1;
}

/* Effects selector for choosing confetti type.
   Interacts with confetti-manager.js via the confettiSelector click event */
.confetti-selector-inline {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    padding-right: var(--space-md);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    font-family: var(--font-family-lang, var(--font-family));
    cursor: pointer;
    user-select: none;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.confetti-selector-inline:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.confetti-selector-label {
    color: var(--text-secondary);
    font-size: var(--font-size-sm);
    white-space: nowrap;
}

.confetti-current-wrap {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.confetti-current {
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    white-space: nowrap;
}

/* ===== PARTICLE / CONFETTI TOGGLE SWITCH ===== */
.particle-toggle-inline {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding-right: var(--space-sm);
}

.particle-toggle-label {
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    white-space: nowrap;
}

.particle-toggle,
.confetti-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) var(--space-md);
    gap: var(--space-md);
}

.confetti-toggle-label {
    color: var(--text-primary);
    font-size: var(--font-size-sm);
    font-family: var(--font-family-lang, var(--font-family));
}

/* ===== SWITCH / SLIDER ===== */
.switch {
    position: relative;
    display: inline-block;
    width: 36px;
    height: 20px;
    flex-shrink: 0;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--bg-tertiary);
    transition: 0.3s;
    border-radius: 20px;
    border: 0px solid var(--border-primary);
}

.slider:before {
    position: absolute;
    content: "";
    height: 14px;
    width: 14px;
    left: 2px;
    bottom: 2px;
    background-color: var(--text-secondary);
    transition: 0.3s;
    border-radius: 50%;
    border: 0px solid var(--border-primary);
}

.slider input:focus {
    outline: none;
}

.switch input:checked + .slider {
    background-color: var(--text-link);
}

.switch input:checked + .slider:before {
    transform: translateX(18px);
    background-color: white;
}

.switch input:focus + .slider {
    box-shadow: 0 0 1px var(--text-link);
    outline: none;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 640px) {
    .theme-toggle-container {
        bottom: 10px;
        left: 10px;
    }

    .theme-dropdown {
        bottom: 50px;
        left: 10px;
    }
}