/* ============================================================================
   TWEAKS PANEL — reusable primitive for exercise/wallpaper pages
   ----------------------------------------------------------------------------
   Mount via TweaksPanel.mount(...) from tweaks.js.
   Always console-flavoured (dark terminal chrome) regardless of page surface —
   it's a control overlay, not part of the document. Keeps it recognisable
   across exercises.
   ============================================================================ */

/* ----- toggle button ----- */
.tweaks-toggle {
	position: fixed;
	bottom: 18px;
	right: 130px;
	z-index: 60;
	font-family: var(--font-mono);
	font-size: 10px;
	color: var(--whisper);
	background: rgba(12, 12, 13, 0.75);
	backdrop-filter: blur(8px);
	-webkit-backdrop-filter: blur(8px);
	border: 1px solid #2e2e36;
	padding: 5px 10px;
	border-radius: 2px;
	cursor: pointer;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	transition:
		color 120ms,
		border-color 120ms;
}
.tweaks-toggle.side-left {
	left: 18px;
	right: auto;
}
.tweaks-toggle:hover,
.tweaks-toggle.open {
	color: #ffd23f;
	border-color: #ffd23f;
}

/* ----- the panel itself ----- */
.tweaks-panel {
	position: fixed;
	top: 60px;
	right: 18px;
	bottom: 60px;
	width: 340px;
	z-index: 60;
	background: rgba(12, 12, 13, 0.94);
	backdrop-filter: blur(12px);
	-webkit-backdrop-filter: blur(12px);
	border: 1px solid #2e2e36;
	border-radius: 3px;
	box-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
	overflow-y: auto;
	overflow-x: hidden;
	display: none;
	font-family: var(--font-mono);
	font-size: 11px;
	color: #f1ebdb;
	flex-direction: column;
}
.tweaks-panel.open {
	display: flex;
}
.tweaks-panel.side-left {
	left: 18px;
	right: auto;
}
.tweaks-panel::-webkit-scrollbar {
	width: 6px;
}
.tweaks-panel::-webkit-scrollbar-track {
	background: transparent;
}
.tweaks-panel::-webkit-scrollbar-thumb {
	background: #2e2e36;
	border-radius: 3px;
}

/* ----- head ----- */
.tweaks-head {
	padding: 14px 16px 10px;
	border-bottom: 1px solid #2e2e36;
	display: flex;
	justify-content: space-between;
	align-items: baseline;
	gap: 8px;
	position: sticky;
	top: 0;
	background: rgba(12, 12, 13, 0.96);
	z-index: 1;
}
.tweaks-head-title {
	color: #ffd23f;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	font-weight: 500;
}
/* Dock left/right toggle in the panel header (author) */
.tweaks-dock {
	margin-left: auto;
	align-self: center;
	appearance: none;
	background: transparent;
	border: 1px solid #2e2e36;
	color: #8a8472;
	font-size: 11px;
	line-height: 1;
	border-radius: 2px;
	padding: 2px 6px;
	cursor: pointer;
}
.tweaks-dock:hover {
	color: var(--cyan, #3fb6c8);
	border-color: var(--cyan, #3fb6c8);
}
.tweaks-head-sub {
	color: #5b5648;
	font-size: 9px;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	transition: color 240ms;
}
.tweaks-head-sub.saved {
	color: #3fa66b; /* sage — confirms the auto-save just happened */
}

/* ----- sections ----- */
.tweaks-body {
	flex: 1;
}
.tweaks-section {
	padding: 14px 16px 4px;
	border-bottom: 1px solid #2e2e36;
}
.tweaks-section:last-child {
	border-bottom: none;
}
.tweaks-section-title {
	color: #3fb6c8;
	text-transform: uppercase;
	letter-spacing: 0.12em;
	font-size: 10px;
	margin-bottom: 12px;
}

/* ----- collapsible section ----- */
.tweaks-section-collapsible .tweaks-section-title {
	display: flex;
	align-items: center;
	justify-content: space-between;
	cursor: pointer;
	user-select: none;
	transition: color 120ms;
}
.tweaks-section-collapsible .tweaks-section-title:hover {
	color: #ffd23f;
}
.tweaks-section-chev {
	font-size: 9px;
	line-height: 1;
	color: #5b5648;
	transition:
		transform 160ms,
		color 120ms;
}
.tweaks-section-collapsible .tweaks-section-title:hover .tweaks-section-chev {
	color: #ffd23f;
}
.tweaks-section.collapsed .tweaks-section-chev {
	transform: rotate(-90deg);
}
.tweaks-section.collapsed {
	padding-bottom: 14px;
}
.tweaks-section.collapsed .tweaks-section-title {
	margin-bottom: 0;
}
.tweaks-section.collapsed .tweaks-section-controls {
	display: none;
}

/* ----- inline section (row of compact controls, e.g. preview buttons) ----- */
.tweaks-section-inline .tweaks-section-controls {
	display: flex;
	gap: 8px;
	align-items: stretch;
}
.tweaks-section-inline .tweaks-row {
	flex: 1;
	margin-bottom: 4px;
	min-width: 0;
}
.tweaks-section-inline .tweaks-row-button .tweaks-row-button-action {
	padding: 7px 6px;
	font-size: 10px;
	letter-spacing: 0.04em;
}
.tweaks-section-inline .tweaks-hint {
	font-size: 10px;
	margin-top: 4px;
}

/* ----- a row ----- */
.tweaks-row {
	margin-bottom: 14px;
}
.tweaks-row:last-child {
	margin-bottom: 8px;
}

.tweaks-row-head {
	display: flex;
	align-items: center;
	gap: 8px;
	margin-bottom: 6px;
}
.tweaks-row-label {
	appearance: none;
	background: transparent;
	border: none;
	padding: 0;
	margin: 0;
	color: #f1ebdb;
	font-family: inherit;
	font-size: 11px;
	text-align: left;
	flex: 1;
	cursor: pointer;
	letter-spacing: 0;
	text-transform: none;
	line-height: 1.3;
}
.tweaks-row-label:hover {
	color: #ffd23f;
}

/* numeric readout (sliders only) */
.tweaks-num {
	color: #ffd23f;
	font-size: 10px;
	min-width: 44px;
	text-align: right;
	font-variant-numeric: tabular-nums;
}

/* ? button — toggles explainer */
.tweaks-q {
	appearance: none;
	background: transparent;
	border: 1px solid #2e2e36;
	color: #5b5648;
	width: 16px;
	height: 16px;
	border-radius: 50%;
	padding: 0;
	font-size: 9px;
	line-height: 1;
	cursor: pointer;
	font-family: inherit;
	flex-shrink: 0;
	transition:
		color 120ms,
		border-color 120ms;
}
.tweaks-q:hover {
	color: #ffd23f;
	border-color: #ffd23f;
}
.tweaks-row.expanded .tweaks-q {
	color: #ffd23f;
	border-color: #ffd23f;
	background: rgba(255, 210, 63, 0.08);
}

/* ----- slider ----- */
.tweaks-row input[type="range"] {
	appearance: none;
	-webkit-appearance: none;
	width: 100%;
	height: 2px;
	background: #2e2e36;
	outline: none;
	margin: 4px 0 0;
	padding: 0;
	cursor: pointer;
}
.tweaks-row input[type="range"]::-webkit-slider-thumb {
	-webkit-appearance: none;
	width: 12px;
	height: 12px;
	border-radius: 50%;
	background: #3fb6c8;
	cursor: pointer;
	border: 2px solid #0c0c0d;
}
.tweaks-row input[type="range"]::-moz-range-thumb {
	width: 12px;
	height: 12px;
	border-radius: 50%;
	background: #3fb6c8;
	cursor: pointer;
	border: 2px solid #0c0c0d;
}

/* ----- segmented radio ----- */
.tweaks-segments {
	display: flex;
	border: 1px solid #2e2e36;
	border-radius: 2px;
	overflow: hidden;
}
.tweaks-seg {
	appearance: none;
	flex: 1;
	background: transparent;
	border: none;
	border-right: 1px solid #2e2e36;
	color: #8a8472;
	font-family: inherit;
	font-size: 10px;
	letter-spacing: 0.04em;
	padding: 6px 4px;
	cursor: pointer;
	text-transform: uppercase;
	transition:
		color 120ms,
		background 120ms;
}
.tweaks-seg:last-child {
	border-right: none;
}
.tweaks-seg:hover {
	color: #f1ebdb;
}
.tweaks-seg.on {
	background: rgba(63, 182, 200, 0.12);
	color: #3fb6c8;
}

/* ----- text input ----- */
.tweaks-row input[type="text"] {
	appearance: none;
	background: rgba(0, 0, 0, 0.35);
	border: 1px solid #2e2e36;
	color: #f1ebdb;
	font-family: var(--font-mono);
	font-size: 11px;
	padding: 6px 8px;
	border-radius: 2px;
	width: 100%;
	outline: none;
	box-sizing: border-box;
	margin-top: 2px;
	letter-spacing: 0;
	text-transform: none;
	line-height: 1.4;
}
.tweaks-row input[type="text"]:focus {
	border-color: #ffd23f;
}
.tweaks-row input[type="text"]::selection {
	background: rgba(255, 210, 63, 0.35);
}

/* ----- textarea ----- */
.tweaks-row textarea {
	appearance: none;
	background: rgba(0, 0, 0, 0.35);
	border: 1px solid #2e2e36;
	color: #f1ebdb;
	font-family: var(--font-mono);
	font-size: 11px;
	padding: 6px 8px;
	border-radius: 2px;
	width: 100%;
	outline: none;
	box-sizing: border-box;
	margin-top: 2px;
	letter-spacing: 0;
	text-transform: none;
	line-height: 1.5;
	resize: vertical;
	min-height: 48px;
}
.tweaks-row textarea:focus {
	border-color: #ffd23f;
}
.tweaks-row textarea::selection {
	background: rgba(255, 210, 63, 0.35);
}

/* ----- range slider (two handles: start + end of journey) ----- */
.tweaks-row-range .tweaks-range-pair {
	display: flex;
	align-items: center;
	gap: 8px;
	margin-top: 4px;
}
.tweaks-range-letter {
	font-size: 9px;
	color: #5b5648;
	width: 12px;
	text-align: center;
	font-family: var(--font-mono);
	letter-spacing: 0;
	text-transform: none;
}
.tweaks-row-range input[type="range"] {
	flex: 1;
	margin: 0;
}
/* Subtle visual differentiation: start handle in cyan, end handle in marker
   yellow, so it's instantly clear which is which. */
.tweaks-row-range .tweaks-range-pair:nth-child(2) input[type="range"]::-webkit-slider-thumb {
	background: #3fb6c8;
}
.tweaks-row-range .tweaks-range-pair:nth-child(2) input[type="range"]::-moz-range-thumb {
	background: #3fb6c8;
}
.tweaks-row-range .tweaks-range-pair:nth-child(3) input[type="range"]::-webkit-slider-thumb {
	background: #ffd23f;
}
.tweaks-row-range .tweaks-range-pair:nth-child(3) input[type="range"]::-moz-range-thumb {
	background: #ffd23f;
}
.tweaks-row-range .tweaks-range-pair:nth-child(2) .tweaks-range-letter {
	color: #3fb6c8;
}
.tweaks-row-range .tweaks-range-pair:nth-child(3) .tweaks-range-letter {
	color: #ffd23f;
}

/* ----- action button row ----- */
.tweaks-row-button .tweaks-row-button-action {
	appearance: none;
	background: transparent;
	border: 1px solid #2e2e36;
	color: #f1ebdb;
	font-family: var(--font-mono);
	font-size: 11px;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	padding: 8px 12px;
	border-radius: 2px;
	cursor: pointer;
	width: 100%;
	text-align: center;
	transition:
		color 120ms,
		border-color 120ms,
		background 120ms;
}
.tweaks-row-button .tweaks-row-button-action:hover {
	color: #ffd23f;
	border-color: #ffd23f;
}
.tweaks-row-button .tweaks-row-button-action.active {
	color: #3fb6c8;
	border-color: #3fb6c8;
	background: rgba(63, 182, 200, 0.12);
}
.tweaks-row-button .preview-btn-end.active {
	color: #ffd23f;
	border-color: #ffd23f;
	background: rgba(255, 210, 63, 0.12);
}
.tweaks-row-head-button {
	display: flex;
	gap: 8px;
	align-items: center;
}
.tweaks-row-head-button .tweaks-row-button-action {
	flex: 1;
}

/* ----- toggle switch ----- */
.tweaks-switch {
	appearance: none;
	background: #18181b;
	border: 1px solid #2e2e36;
	width: 28px;
	height: 16px;
	border-radius: 999px;
	padding: 0;
	cursor: pointer;
	position: relative;
	transition:
		background 120ms,
		border-color 120ms;
	flex-shrink: 0;
}
.tweaks-switch-knob {
	position: absolute;
	top: 1px;
	left: 1px;
	width: 12px;
	height: 12px;
	border-radius: 50%;
	background: #5b5648;
	transition:
		left 140ms,
		background 140ms;
}
.tweaks-switch.on {
	background: rgba(63, 182, 200, 0.18);
	border-color: #3fb6c8;
}
.tweaks-switch.on .tweaks-switch-knob {
	left: 13px;
	background: #3fb6c8;
}

/* ----- hint (short, always visible) ----- */
.tweaks-hint {
	font-size: 11px;
	color: #b8a888;
	line-height: 1.5;
	margin-top: 6px;
	font-family: var(--font-sans);
	letter-spacing: 0;
	text-transform: none;
}

/* ----- explainer (long, expand on click) -----
   Snap height, fade opacity. A max-height transition would be smoother in
   theory but reliably wedges at 0 on this page (continuous rAF + canvas
   mutations confuse the transition start), so we keep it simple. */
.tweaks-explainer {
	display: none;
	opacity: 0;
	transition: opacity 180ms;
	font-size: 10px;
	color: #c7c1ad;
	line-height: 1.55;
	font-family: var(--font-sans);
	letter-spacing: 0;
	text-transform: none;
	border-left: 2px solid #ffd23f;
	padding: 6px 10px 6px 12px;
	margin-top: 8px;
}
.tweaks-row.expanded .tweaks-explainer {
	display: block;
	opacity: 1;
}

/* ----- actions row ----- */
.tweaks-actions {
	padding: 12px 16px 16px;
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 6px;
	border-top: 1px solid #2e2e36;
	position: sticky;
	bottom: 0;
	background: rgba(12, 12, 13, 0.96);
}
.tweaks-action {
	appearance: none;
	background: transparent;
	border: 1px solid #2e2e36;
	color: #f1ebdb;
	font-family: var(--font-mono);
	font-size: 10px;
	text-transform: uppercase;
	letter-spacing: 0.08em;
	padding: 7px 8px;
	border-radius: 2px;
	cursor: pointer;
	transition:
		color 120ms,
		border-color 120ms;
}
.tweaks-action:hover {
	color: #ffd23f;
	border-color: #ffd23f;
}
.tweaks-action.flash {
	color: #3fa66b;
	border-color: #3fa66b;
}

/* drag-drop file load affordance — when dragging a .json over the panel */
.tweaks-panel.drag-over {
	border-color: #ffd23f;
	box-shadow:
		inset 0 0 0 1px #ffd23f,
		0 8px 32px rgba(0, 0, 0, 0.5);
}

/* ----- list (editable array of textareas with add/delete) ----- */
.tweaks-list-items {
	display: flex;
	flex-direction: column;
	gap: 10px;
	margin-top: 4px;
}
.tweaks-list-item-head {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 8px;
	margin-bottom: 4px;
}
.tweaks-list-item-head-right {
	display: flex;
	align-items: center;
	gap: 6px;
}
.tweaks-list-item-extra {
	display: flex;
	align-items: center;
	gap: 3px;
}
.tweaks-list-item-extra input[type="number"] {
	appearance: textfield;
	-moz-appearance: textfield;
	width: 44px;
	background: rgba(0, 0, 0, 0.35);
	border: 1px solid #2e2e36;
	color: #f1ebdb;
	font-family: var(--font-mono);
	font-size: 10px;
	padding: 3px 6px;
	border-radius: 2px;
	outline: none;
	text-align: right;
	letter-spacing: 0;
	text-transform: none;
}
.tweaks-list-item-extra input[type="number"]:focus {
	border-color: #ffd23f;
}
.tweaks-list-item-extra input[type="number"]::-webkit-outer-spin-button,
.tweaks-list-item-extra input[type="number"]::-webkit-inner-spin-button {
	-webkit-appearance: none;
	margin: 0;
}
.tweaks-list-item-extra-suffix {
	font-size: 9px;
	color: #5b5648;
	text-transform: uppercase;
	letter-spacing: 0.06em;
}
.tweaks-list-item-label {
	font-size: 9px;
	color: #8a8472;
	text-transform: uppercase;
	letter-spacing: 0.08em;
}
.tweaks-list-item-head-left {
	display: flex;
	align-items: center;
	gap: 6px;
}
.tweaks-list-item-grip {
	appearance: none;
	background: transparent;
	border: none;
	color: #5b5648;
	font-size: 12px;
	line-height: 1;
	padding: 2px 4px;
	cursor: grab;
	font-family: var(--font-mono, monospace);
	transition: color 120ms;
}
.tweaks-list-item-grip:hover {
	color: #ffd23f;
}
.tweaks-list-item-grip:active {
	cursor: grabbing;
}
.tweaks-list-item.dragging {
	opacity: 0.45;
}
.tweaks-list-item.drag-over-top {
	box-shadow: inset 0 2px 0 0 #ffd23f;
}
.tweaks-list-item.drag-over-bottom {
	box-shadow: inset 0 -2px 0 0 #ffd23f;
}
.tweaks-list-item-del {
	appearance: none;
	background: transparent;
	border: 1px solid #2e2e36;
	color: #5b5648;
	width: 18px;
	height: 18px;
	border-radius: 2px;
	cursor: pointer;
	font-size: 13px;
	line-height: 1;
	padding: 0;
	font-family: inherit;
	flex-shrink: 0;
	transition:
		color 120ms,
		border-color 120ms,
		background 120ms;
}
.tweaks-list-item-del:hover {
	color: #e94b35;
	border-color: #e94b35;
	background: rgba(233, 75, 53, 0.08);
}
.tweaks-list-add {
	appearance: none;
	background: transparent;
	border: 1px dashed #2e2e36;
	color: #8a8472;
	font-family: var(--font-mono);
	font-size: 10px;
	text-transform: uppercase;
	letter-spacing: 0.08em;
	padding: 7px 8px;
	border-radius: 2px;
	cursor: pointer;
	width: 100%;
	margin-top: 10px;
	transition:
		color 120ms,
		border-color 120ms;
}
.tweaks-list-add:hover {
	color: #ffd23f;
	border-color: #ffd23f;
}

/* ----- pins (per-side range snapshots) ----- */
.tweaks-pins-side {
	margin-bottom: 14px;
}
.tweaks-pins-side:last-child {
	margin-bottom: 0;
}
.tweaks-pins-head {
	display: flex;
	align-items: center;
	justify-content: space-between;
	margin-bottom: 8px;
}
.tweaks-pins-side-label {
	font-family: var(--font-mono);
	font-size: 10px;
	text-transform: uppercase;
	letter-spacing: 0.08em;
	color: #f1ebdb;
}
.tweaks-pins-add {
	appearance: none;
	background: transparent;
	border: 1px solid #2e2e36;
	color: #8a8578;
	font-family: var(--font-mono);
	font-size: 9px;
	text-transform: uppercase;
	letter-spacing: 0.06em;
	padding: 4px 8px;
	border-radius: 2px;
	cursor: pointer;
	transition:
		color 120ms,
		border-color 120ms;
}
.tweaks-pins-add:hover {
	color: #3fb6c8;
	border-color: #3fb6c8;
}
.tweaks-pins-list {
	display: flex;
	flex-wrap: wrap;
	gap: 5px;
}
.tweaks-pins-empty {
	font-family: var(--font-mono);
	font-size: 9px;
	color: #5b5648;
	font-style: italic;
}
.tweaks-pin {
	display: flex;
	align-items: stretch;
	border: 1px solid #2e2e36;
	border-radius: 2px;
	overflow: hidden;
	transition: border-color 200ms;
}
.tweaks-pin.applied {
	border-color: #3fa66b;
}
.tweaks-pin-name {
	appearance: none;
	background: transparent;
	border: none;
	color: #f1ebdb;
	font-family: var(--font-mono);
	font-size: 10px;
	padding: 4px 8px;
	cursor: pointer;
	transition: color 120ms;
}
.tweaks-pin-name:hover {
	color: #ffd23f;
}
.tweaks-pin-del {
	appearance: none;
	background: transparent;
	border: none;
	border-left: 1px solid #2e2e36;
	color: #5b5648;
	font-size: 12px;
	line-height: 1;
	padding: 0 7px;
	cursor: pointer;
	transition: color 120ms;
}
.tweaks-pin-del:hover {
	color: #e94b35;
}