/*
 * Andropedi — Online Hemen Oyna · Sudoku
 * Hafif, modern, mobile-first sudoku UI.
 */

.andropedi-sudoku {
	--asu-bg: #f8fafc;
	--asu-surface: #ffffff;
	--asu-surface-2: #f1f5f9;
	--asu-border: #cbd5e1;
	--asu-border-strong: #0f172a;
	--asu-text: #0f172a;
	--asu-text-muted: #475569;
	--asu-given: #0f172a;
	--asu-input: #2563eb;
	--asu-accent: #2563eb;
	--asu-accent-soft: rgba(37, 99, 235, 0.16);
	--asu-error: #dc2626;
	--asu-error-soft: rgba(220, 38, 38, 0.12);
	--asu-shadow: 0 18px 40px -22px rgba(15, 23, 42, 0.35);
	--asu-radius: 18px;

	box-sizing: border-box;
	max-width: 560px;
	margin: 1.4rem auto;
	padding: clamp(0.85rem, 2.6vw, 1.4rem);
	background: var(--asu-bg);
	color: var(--asu-text);
	border-radius: var(--asu-radius);
	box-shadow: var(--asu-shadow);
	font-family: "Inter", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
	-webkit-font-smoothing: antialiased;
}

.andropedi-sudoku *,
.andropedi-sudoku *::before,
.andropedi-sudoku *::after {
	box-sizing: inherit;
}

.andropedi-sudoku__header {
	display: flex;
	flex-wrap: wrap;
	gap: 0.65rem;
	align-items: center;
	justify-content: space-between;
	margin-bottom: 0.85rem;
}

.andropedi-sudoku__status {
	display: inline-flex;
	align-items: center;
	gap: 0.45rem;
	font-size: 0.92rem;
	color: var(--asu-text-muted);
	font-weight: 500;
}

.andropedi-sudoku__timer {
	font-variant-numeric: tabular-nums;
	font-weight: 600;
	color: var(--asu-text);
	background: var(--asu-surface);
	border: 1px solid var(--asu-border);
	border-radius: 999px;
	padding: 0.18rem 0.6rem;
	letter-spacing: 0.02em;
}

.andropedi-sudoku__timer-toggle {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 1.85rem;
	height: 1.85rem;
	padding: 0;
	margin: 0;
	border: 1px solid var(--asu-border);
	border-radius: 999px;
	background: var(--asu-surface);
	color: var(--asu-text);
	cursor: pointer;
	transition: border-color 0.15s ease, background-color 0.15s ease, color 0.15s ease, transform 0.15s ease;
	-webkit-appearance: none;
	appearance: none;
	line-height: 0;
}

.andropedi-sudoku__timer-toggle:hover {
	border-color: var(--asu-accent);
	color: var(--asu-accent);
	transform: translateY(-1px);
}

.andropedi-sudoku__timer-toggle:focus-visible {
	outline: 2px solid var(--asu-accent);
	outline-offset: 2px;
}

.andropedi-sudoku__timer-toggle[aria-pressed="true"] {
	background: var(--asu-accent);
	border-color: var(--asu-accent);
	color: #ffffff;
}

.andropedi-sudoku__icon {
	width: 1rem;
	height: 1rem;
	display: inline-block;
	fill: currentColor;
}

.andropedi-sudoku__timer-toggle .andropedi-sudoku__icon--play { display: none; }
.andropedi-sudoku__timer-toggle[aria-pressed="true"] .andropedi-sudoku__icon--pause { display: none; }
.andropedi-sudoku__timer-toggle[aria-pressed="true"] .andropedi-sudoku__icon--play { display: inline-block; }

.andropedi-sudoku__difficulty {
	display: inline-flex;
	align-items: center;
	gap: 0.4rem;
	font-size: 0.88rem;
	color: var(--asu-text-muted);
}

.andropedi-sudoku__difficulty-select {
	font: inherit;
	font-size: 0.88rem;
	color: var(--asu-text);
	background: var(--asu-surface);
	border: 1px solid var(--asu-border);
	border-radius: 10px;
	padding: 0.32rem 0.55rem;
	cursor: pointer;
	transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.andropedi-sudoku__difficulty-select:focus-visible {
	outline: 2px solid var(--asu-accent);
	outline-offset: 2px;
}

.andropedi-sudoku__board-wrap {
	position: relative;
	background: var(--asu-surface);
	border-radius: 14px;
	padding: clamp(0.45rem, 1.8vw, 0.85rem);
	border: 1px solid var(--asu-border);
}

.andropedi-sudoku__paused-overlay {
	position: absolute;
	inset: clamp(0.45rem, 1.8vw, 0.85rem);
	display: flex !important;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 0.4rem;
	border: 0;
	margin: 0;
	padding: 0;
	background: rgba(255, 255, 255, 0.78);
	backdrop-filter: blur(2px);
	-webkit-backdrop-filter: blur(2px);
	color: var(--asu-text);
	border-radius: 10px;
	font-weight: 700;
	font-size: clamp(0.95rem, 2.4vw, 1.1rem);
	letter-spacing: 0.01em;
	cursor: pointer;
	z-index: 2;
	-webkit-appearance: none;
	appearance: none;
	transition: background-color 0.15s ease, color 0.15s ease;
}

.andropedi-sudoku__paused-overlay[hidden] {
	display: none !important;
}

.andropedi-sudoku__paused-overlay svg {
	width: 2.4rem;
	height: 2.4rem;
	fill: var(--asu-accent);
	display: block;
}

.andropedi-sudoku__paused-overlay:hover,
.andropedi-sudoku__paused-overlay:focus-visible {
	background: rgba(255, 255, 255, 0.92);
	outline: none;
}

.andropedi-sudoku.is-paused .andropedi-sudoku__board {
	filter: blur(7px);
	pointer-events: none;
	user-select: none;
}

.andropedi-sudoku.is-paused .andropedi-sudoku__pad,
.andropedi-sudoku.is-paused .andropedi-sudoku__actions [data-asu-action="reset"],
.andropedi-sudoku.is-paused .andropedi-sudoku__actions [data-asu-action="check"],
.andropedi-sudoku.is-paused .andropedi-sudoku__actions [data-asu-action="hint"],
.andropedi-sudoku.is-paused .andropedi-sudoku__actions [data-asu-action="notes"],
.andropedi-sudoku.is-paused .andropedi-sudoku__actions [data-asu-action="erase"] {
	pointer-events: none;
	opacity: 0.55;
}

.andropedi-sudoku__board {
	display: grid;
	grid-template-columns: repeat(9, 1fr);
	grid-template-rows: repeat(9, 1fr);
	aspect-ratio: 1 / 1;
	width: 100%;
	gap: 0;
	background: var(--asu-border-strong);
	border: 2px solid var(--asu-border-strong);
	border-radius: 10px;
	overflow: hidden;
	user-select: none;
	-webkit-user-select: none;
	touch-action: manipulation;
}

.andropedi-sudoku__cell {
	all: unset;
	display: flex;
	align-items: center;
	justify-content: center;
	background: var(--asu-surface);
	color: var(--asu-input);
	font-weight: 600;
	font-size: clamp(1rem, 4.4vw, 1.45rem);
	cursor: pointer;
	position: relative;
	min-height: 0;
	min-width: 0;
	transition: background-color 0.12s ease, color 0.12s ease;
	font-variant-numeric: tabular-nums;
	line-height: 1;
	box-shadow:
		inset -1px 0 0 var(--asu-border),
		inset 0 -1px 0 var(--asu-border);
}

.andropedi-sudoku__cell:focus-visible {
	outline: 2px solid var(--asu-accent);
	outline-offset: -2px;
	z-index: 2;
}

/* 3×3 kalın çizgiler */
.andropedi-sudoku__cell[data-col="2"],
.andropedi-sudoku__cell[data-col="5"] {
	box-shadow:
		inset -2px 0 0 var(--asu-border-strong),
		inset 0 -1px 0 var(--asu-border);
}
.andropedi-sudoku__cell[data-row="2"],
.andropedi-sudoku__cell[data-row="5"] {
	box-shadow:
		inset -1px 0 0 var(--asu-border),
		inset 0 -2px 0 var(--asu-border-strong);
}
.andropedi-sudoku__cell[data-col="2"][data-row="2"],
.andropedi-sudoku__cell[data-col="2"][data-row="5"],
.andropedi-sudoku__cell[data-col="5"][data-row="2"],
.andropedi-sudoku__cell[data-col="5"][data-row="5"] {
	box-shadow:
		inset -2px 0 0 var(--asu-border-strong),
		inset 0 -2px 0 var(--asu-border-strong);
}
.andropedi-sudoku__cell[data-col="8"] {
	box-shadow: inset 0 -1px 0 var(--asu-border);
}
.andropedi-sudoku__cell[data-col="8"][data-row="2"],
.andropedi-sudoku__cell[data-col="8"][data-row="5"] {
	box-shadow: inset 0 -2px 0 var(--asu-border-strong);
}
.andropedi-sudoku__cell[data-row="8"] {
	box-shadow: inset -1px 0 0 var(--asu-border);
}
.andropedi-sudoku__cell[data-row="8"][data-col="2"],
.andropedi-sudoku__cell[data-row="8"][data-col="5"] {
	box-shadow: inset -2px 0 0 var(--asu-border-strong);
}
.andropedi-sudoku__cell[data-row="8"][data-col="8"] {
	box-shadow: none;
}

.andropedi-sudoku__cell.is-given {
	color: var(--asu-given);
	background: var(--asu-surface-2);
}

/*
 * Tarama / vurgu — saydam değil SOLID açık mavi tonlar.
 * Alt katmanda ne olursa olsun zemin tonu garantilenir; yazı her zaman
 * koyu lacivert (`--asu-given`) kalır.
 */
.andropedi-sudoku__cell.is-peer {
	background-color: #eef4ff !important;
	color: #0f172a !important;
}
.andropedi-sudoku__cell.is-given.is-peer {
	background-color: #e3edff !important;
	color: #0f172a !important;
}
.andropedi-sudoku__cell.is-same {
	background-color: #c7d8ff !important;
	color: #0f172a !important;
}
.andropedi-sudoku__cell.is-given.is-same {
	background-color: #b6cbff !important;
	color: #0f172a !important;
}
.andropedi-sudoku__cell.is-selected {
	background-color: #ffe28a !important; /* sıcak amber — odak hücresi belirgin */
	color: #0f172a !important;
}
.andropedi-sudoku__cell.is-given.is-selected {
	background-color: #ffd76a !important;
	color: #0f172a !important;
}

.andropedi-sudoku__cell.is-error {
	color: var(--asu-error) !important;
	background-color: #ffe1e1 !important;
}

.andropedi-sudoku__notes {
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	grid-template-rows: repeat(3, 1fr);
	width: 88%;
	height: 88%;
	font-size: 0.55em;
	color: var(--asu-text-muted);
	font-weight: 500;
	pointer-events: none;
	gap: 0;
}
.andropedi-sudoku__notes span {
	display: flex;
	align-items: center;
	justify-content: center;
}

.andropedi-sudoku__pad {
	display: grid;
	grid-template-columns: repeat(9, 1fr);
	gap: 0.35rem;
	margin-top: 0.85rem;
}

.andropedi-sudoku__pad-btn {
	all: unset;
	display: flex;
	align-items: center;
	justify-content: center;
	background: var(--asu-surface);
	color: var(--asu-text);
	font-weight: 600;
	font-size: clamp(0.95rem, 4vw, 1.2rem);
	border: 1px solid var(--asu-border);
	border-radius: 10px;
	min-height: 2.5rem;
	cursor: pointer;
	transition: background-color 0.12s ease, border-color 0.12s ease, color 0.12s ease, transform 0.05s ease;
	font-variant-numeric: tabular-nums;
}

.andropedi-sudoku__pad-btn:hover,
.andropedi-sudoku__pad-btn:focus-visible {
	border-color: var(--asu-accent);
	color: var(--asu-accent);
	outline: none;
}

.andropedi-sudoku__pad-btn:active {
	transform: translateY(1px);
}

.andropedi-sudoku__pad-btn.is-exhausted {
	opacity: 0.35;
	pointer-events: none;
}

.andropedi-sudoku__actions {
	display: flex;
	flex-wrap: wrap;
	gap: 0.45rem;
	margin-top: 0.85rem;
	justify-content: center;
}

.andropedi-sudoku__btn {
	all: unset;
	display: inline-flex;
	align-items: center;
	gap: 0.35rem;
	padding: 0.55rem 0.95rem;
	background: var(--asu-surface);
	color: var(--asu-text);
	border: 1px solid var(--asu-border);
	border-radius: 999px;
	font-size: 0.9rem;
	font-weight: 600;
	cursor: pointer;
	transition: background-color 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.andropedi-sudoku__btn:hover,
.andropedi-sudoku__btn:focus-visible {
	background: var(--asu-accent-soft);
	border-color: var(--asu-accent);
	color: var(--asu-accent);
	outline: none;
}

.andropedi-sudoku__btn[aria-pressed="true"] {
	background: var(--asu-accent);
	color: #ffffff;
	border-color: var(--asu-accent);
}

.andropedi-sudoku__btn--primary {
	background: var(--asu-accent);
	color: #ffffff;
	border-color: var(--asu-accent);
}

.andropedi-sudoku__btn--primary:hover,
.andropedi-sudoku__btn--primary:focus-visible {
	background: #1d4ed8;
	color: #ffffff;
	border-color: #1d4ed8;
}

.andropedi-sudoku__message {
	margin-top: 0.75rem;
	min-height: 1.4em;
	text-align: center;
	font-weight: 600;
	color: var(--asu-text-muted);
	font-size: 0.95rem;
	transition: color 0.15s ease;
}
.andropedi-sudoku__message.is-success {
	color: #16a34a;
}
.andropedi-sudoku__message.is-error {
	color: var(--asu-error);
}

/* Mobil sıkı yerleşim */
@media (max-width: 540px) {
	.andropedi-sudoku {
		margin: 0.85rem auto;
		border-radius: 14px;
	}
	.andropedi-sudoku__pad-btn {
		min-height: 2.25rem;
	}
	.andropedi-sudoku__btn {
		padding: 0.5rem 0.8rem;
		font-size: 0.85rem;
	}
}

/*
 * Sudoku için sabit açık palet — sistem koyu temasından, mobil
 * `data-andropedi-vtheme` varyantlarından veya `color-scheme` kalıtımından
 * etkilenmez. Tıklayınca peer / aynı sayı / seçili tarama hep beyaz/açık
 * zemin + koyu rakam üstüne uygulanır; kontrast kaybı olmaz.
 */
.andropedi-sudoku {
	color-scheme: light;
}

html[data-andropedi-vtheme] .andropedi-sudoku {
	--asu-bg: #f8fafc;
	--asu-surface: #ffffff;
	--asu-surface-2: #f1f5f9;
	--asu-border: #cbd5e1;
	--asu-border-strong: #0f172a;
	--asu-text: #0f172a;
	--asu-text-muted: #475569;
	--asu-given: #0f172a;
	--asu-input: #1d4ed8;
	--asu-accent: #2563eb;
	--asu-accent-soft: rgba(37, 99, 235, 0.16);
	--asu-error: #dc2626;
	--asu-error-soft: rgba(220, 38, 38, 0.12);
	--asu-shadow: 0 18px 40px -22px rgba(15, 23, 42, 0.35);
}

html[data-andropedi-vtheme] .andropedi-sudoku .andropedi-sudoku__cell {
	color: var(--asu-input);
}
html[data-andropedi-vtheme] .andropedi-sudoku .andropedi-sudoku__cell.is-given {
	color: var(--asu-given);
}

/*
 * Vtheme altında da aynı solid vurgu paleti — hiçbir varyantta saydamlık veya
 * koyu zemin sızıntısı olmaz; rakam koyu lacivert kalır.
 */
html[data-andropedi-vtheme] .andropedi-sudoku .andropedi-sudoku__cell.is-peer {
	background-color: #eef4ff !important;
	color: #0f172a !important;
}
html[data-andropedi-vtheme] .andropedi-sudoku .andropedi-sudoku__cell.is-given.is-peer {
	background-color: #e3edff !important;
	color: #0f172a !important;
}
html[data-andropedi-vtheme] .andropedi-sudoku .andropedi-sudoku__cell.is-same {
	background-color: #c7d8ff !important;
	color: #0f172a !important;
}
html[data-andropedi-vtheme] .andropedi-sudoku .andropedi-sudoku__cell.is-given.is-same {
	background-color: #b6cbff !important;
	color: #0f172a !important;
}
html[data-andropedi-vtheme] .andropedi-sudoku .andropedi-sudoku__cell.is-selected {
	background-color: #ffe28a !important;
	color: #0f172a !important;
}
html[data-andropedi-vtheme] .andropedi-sudoku .andropedi-sudoku__cell.is-given.is-selected {
	background-color: #ffd76a !important;
	color: #0f172a !important;
}