/*
 * WP Snake Game – Stylesheet
 * Alle Regeln sind auf den Container ".sng-snake-game" beschränkt (CSS-Isolierung),
 * um Konflikte mit dem aktiven WordPress-Theme zu vermeiden.
 * Es werden keine externen Schriftarten geladen – die Typografie des Themes
 * wird über "font-family: inherit" übernommen.
 */

.sng-snake-game {
	--sng-color-bg: #ffffff;
	--sng-color-surface: #fafafa;
	--sng-color-border: #e2e2e2;
	--sng-color-text: #1f2328;
	--sng-color-text-muted: #6b7280;
	--sng-color-accent: #3452ff;
	--sng-color-accent-hover: #1732ca;
	--sng-color-accent-contrast: #ffffff;
	--sng-color-danger: #dc2626;
	--sng-color-focus: #2563eb;
	--sng-radius: 10px;
	--sng-radius-sm: 6px;
	--sng-space-1: 4px;
	--sng-space-2: 8px;
	--sng-space-3: 12px;
	--sng-space-4: 16px;
	--sng-space-5: 24px;
	--sng-space-6: 32px;

	box-sizing: border-box;
	display: block;
	width: 100%;
	max-width: 560px;
	margin: 0 auto;
	padding: var(--sng-space-5);
	background: var(--sng-color-bg);
	border: 1px solid var(--sng-color-border);
	border-radius: var(--sng-radius);
	font-family: inherit;
	line-height: 1.5;
	color: var(--sng-color-text);
	-webkit-tap-highlight-color: transparent;
}

.sng-snake-game *,
.sng-snake-game *::before,
.sng-snake-game *::after {
	box-sizing: border-box;
}

/* ---------- Kopfbereich / Panel ---------- */

.sng-snake-game__panel {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: space-between;
	gap: var(--sng-space-3);
	padding-bottom: var(--sng-space-4);
	margin-bottom: var(--sng-space-4);
	border-bottom: 1px solid var(--sng-color-border);
}

.sng-snake-game__title {
	font-size: 1.125em;
	font-weight: 600;
	letter-spacing: 0.01em;
	margin-right: auto;
}

.sng-snake-game__stats {
	display: flex;
	gap: var(--sng-space-5);
}

.sng-snake-game__stat {
	display: flex;
	flex-direction: column;
	align-items: flex-start;
	line-height: 1.3;
}

.sng-snake-game__stat-label {
	font-size: 0.75em;
	color: var(--sng-color-text-muted);
	text-transform: uppercase;
	letter-spacing: 0.04em;
}

.sng-snake-game__stat-value {
	font-size: 1.0625em;
	font-weight: 600;
	font-variant-numeric: tabular-nums;
}

.sng-snake-game__controls {
	display: flex;
	align-items: center;
	gap: var(--sng-space-2);
	width: 100%;
	margin-top: var(--sng-space-3);
}

/* ---------- Buttons ---------- */

.sng-snake-game__btn {
	appearance: none;
	-webkit-appearance: none;
	font-family: inherit;
	font-size: 0.875em;
	font-weight: 500;
	line-height: 1.2;
	color: var(--sng-color-text);
	background: var(--sng-color-surface);
	border: 1px solid var(--sng-color-border);
	border-radius: var(--sng-radius-sm);
	padding: var(--sng-space-2) var(--sng-space-4);
	cursor: pointer;
	transition: background-color 0.15s ease, border-color 0.15s ease, transform 0.05s ease;
	white-space: nowrap;
}

.sng-snake-game__btn:hover {
	background: #f0f0f0;
	border-color: #d0d0d0;
}

.sng-snake-game__btn:active {
	transform: translateY(1px);
}

.sng-snake-game__btn:focus-visible {
	outline: 2px solid var(--sng-color-focus);
	outline-offset: 2px;
}

.sng-snake-game__btn--primary {
	background: var(--sng-color-accent);
	border-color: var(--sng-color-accent);
	color: var(--sng-color-accent-contrast);
}

.sng-snake-game__btn--primary:hover {
	background: var(--sng-color-accent-hover);
	border-color: var(--sng-color-accent-hover);
}

.sng-snake-game__btn--secondary {
	background: transparent;
}

.sng-snake-game__btn--icon {
	padding: var(--sng-space-2) var(--sng-space-3);
	line-height: 1;
	margin-left: auto;
}

.sng-snake-game__btn[aria-pressed="true"] {
	background: #eef2ff;
	border-color: #c7d2fe;
}

.sng-snake-game__btn:disabled {
	opacity: 0.5;
	cursor: not-allowed;
}

/* ---------- Spielfeld ---------- */

.sng-snake-game__stage {
	position: relative;
	width: 100%;
	aspect-ratio: 1 / 1;
	background: var(--sng-color-surface);
	border: 1px solid var(--sng-color-border);
	border-radius: var(--sng-radius-sm);
	overflow: hidden;
	touch-action: none;
}

.sng-snake-game__canvas {
	display: block;
	width: 100%;
	height: 100%;
}

/* ---------- Overlay (Start / Pause / Game Over) ---------- */

.sng-snake-game__overlay {
	position: absolute;
	inset: 0;
	display: flex;
	align-items: center;
	justify-content: center;
	background: rgba(255, 255, 255, 0.92);
	padding: var(--sng-space-5);
	text-align: center;
}

.sng-snake-game__overlay[hidden] {
	display: none;
}

.sng-snake-game__overlay-inner {
	max-width: 320px;
}

.sng-snake-game__overlay-title {
	margin: 0 0 var(--sng-space-2);
	font-size: 1.25em;
	font-weight: 600;
}

.sng-snake-game__overlay-text {
	margin: 0 0 var(--sng-space-4);
	color: var(--sng-color-text-muted);
	font-size: 0.9em;
}

.sng-snake-game__overlay-text--danger {
	color: var(--sng-color-danger);
}

/* ---------- Touch-Steuerung ---------- */

.sng-snake-game__touch-controls {
	display: none;
	flex-direction: column;
	align-items: center;
	gap: var(--sng-space-2);
	margin-top: var(--sng-space-5);
}

.sng-snake-game__touch-row {
	display: flex;
	gap: var(--sng-space-2);
}

.sng-snake-game__dpad-btn {
	appearance: none;
	-webkit-appearance: none;
	width: 48px;
	height: 48px;
	font-size: 1em;
	color: var(--sng-color-text-muted);
	background: var(--sng-color-surface);
	border: 1px solid var(--sng-color-border);
	border-radius: var(--sng-radius-sm);
	cursor: pointer;
}

.sng-snake-game__dpad-btn:active {
	background: #eef2ff;
	border-color: #c7d2fe;
	color: var(--sng-color-text);
}

.sng-snake-game__dpad-btn:focus-visible {
	outline: 2px solid var(--sng-color-focus);
	outline-offset: 2px;
}

/* Touch-Steuerung nur auf berührungsfähigen bzw. schmalen Geräten anzeigen */
@media (pointer: coarse) {
	.sng-snake-game__touch-controls {
		display: flex;
	}
}

/* ---------- Responsive Anpassungen ---------- */

@media (max-width: 480px) {
	.sng-snake-game {
		padding: var(--sng-space-4);
		max-width: 100%;
	}

	.sng-snake-game__title {
		font-size: 1em;
	}

	.sng-snake-game__stats {
		gap: var(--sng-space-4);
	}

	.sng-snake-game__btn {
		flex: 1 1 auto;
		text-align: center;
		padding: var(--sng-space-2) var(--sng-space-3);
	}

	.sng-snake-game__btn--icon {
		flex: 0 0 auto;
	}
}

@media (prefers-reduced-motion: reduce) {
	.sng-snake-game__btn {
		transition: none;
	}
}