/* Sudoku – gedrucktes Rätsel, eigene Einträge in Bleistift
   Alle Regeln sind auf .sdk gescoped, damit kein Theme-CSS kollidiert. */

.sdk {
	--sdk-paper:    #e7e5de;  /* Papier */
	--sdk-shade:    #dedbd2;  /* getönte Blöcke, Schachbrett über die 3x3-Felder */
	--sdk-ink:      #1b1a17;  /* Druckschwarz: Vorgaben */
	--sdk-pencil:   #38618c;  /* Bleistiftblau: eigene Einträge */
	--sdk-note:     #7d7a70;  /* Notizen */
	--sdk-rule:     #b9b5a9;  /* Haarlinien */
	--sdk-rule-str: #3a3730;  /* Blocklinien */
	--sdk-wrong:    #b33a2b;  /* Konflikt */
	--sdk-sel:      #bcd0e6;  /* gewähltes Feld */
	--sdk-peer:     #dad7cc;  /* Zeile, Spalte, Block */
	--sdk-same:     #e6dcb6;  /* gleiche Ziffer */

	--sdk-sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
	--sdk-mono: ui-monospace, "SFMono-Regular", "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

	font-family: var(--sdk-sans);
	max-width: 480px;
	margin: 0 auto;
	box-sizing: border-box;
}

.sdk *,
.sdk *::before,
.sdk *::after { box-sizing: border-box; }

/* ---------- Kopf ---------- */

.sdk__head {
	display: flex;
	align-items: flex-end;
	justify-content: space-between;
	gap: 12px;
	margin-bottom: 12px;
}

.sdk__eyebrow {
	font-family: var(--sdk-mono);
	font-size: 10px;
	letter-spacing: 0.3em;
	text-transform: uppercase;
	color: var(--sdk-pencil);
	margin: 0 0 3px;
}

.sdk__title {
	font-size: clamp(22px, 3.6vw, 30px);
	font-weight: 700;
	letter-spacing: 0.01em;
	line-height: 1.05;
	margin: 0;
	color: inherit;
}

.sdk__meta {
	display: flex;
	align-items: baseline;
	gap: 12px;
	font-family: var(--sdk-mono);
	font-size: 12px;
}

.sdk__level {
	text-transform: uppercase;
	letter-spacing: 0.16em;
	font-size: 10px;
	opacity: 0.65;
}

.sdk__clock {
	font-variant-numeric: tabular-nums;
	font-size: 15px;
	font-weight: 700;
	color: var(--sdk-pencil);
}

/* ---------- Gitter ---------- */

.sdk__grid {
	display: grid;
	grid-template-columns: repeat(9, 1fr);
	aspect-ratio: 1;
	width: 100%;
	background: var(--sdk-paper);
	border: 2px solid var(--sdk-rule-str);
	transition: border-color 300ms ease;
}

.sdk__grid.is-solved { border-color: var(--sdk-pencil); }

.sdk__cell {
	position: relative;
	aspect-ratio: 1;
	border: 0;
	border-right: 1px solid var(--sdk-rule);
	border-bottom: 1px solid var(--sdk-rule);
	margin: 0;
	padding: 0;
	background: transparent;
	cursor: pointer;
	appearance: none;
	font-family: inherit;
	display: flex;
	align-items: center;
	justify-content: center;
	overflow: hidden;
}

.sdk__cell:nth-child(9n) { border-right: 0; }
.sdk__cell:nth-child(n + 73) { border-bottom: 0; }

.sdk__cell--edgeR { border-right: 2px solid var(--sdk-rule-str); }
.sdk__cell--edgeB { border-bottom: 2px solid var(--sdk-rule-str); }

.sdk__cell--shade { background: var(--sdk-shade); }

/* Hervorhebungen, von schwach nach stark */
.sdk__cell.is-peer { background: var(--sdk-peer); }
.sdk__cell.is-same { background: var(--sdk-same); }
.sdk__cell.is-sel  { background: var(--sdk-sel); }

.sdk__cell:focus-visible {
	outline: 2px solid var(--sdk-pencil);
	outline-offset: -3px;
	z-index: 2;
}

/* ---------- Ziffern ---------- */

.sdk__val {
	font-size: clamp(17px, 5.2vw, 26px);
	line-height: 1;
	font-variant-numeric: tabular-nums;
	font-weight: 500;
	color: var(--sdk-pencil);
	position: relative;
	z-index: 1;
}

/* Vorgaben: gedruckt, nicht veränderbar */
.sdk__cell.is-given { cursor: default; }
.sdk__cell.is-given .sdk__val { color: var(--sdk-ink); font-weight: 700; }

.sdk__cell.is-bad .sdk__val { color: var(--sdk-wrong); }
.sdk__cell.is-bad::after {
	content: "";
	position: absolute;
	inset: 0;
	background: var(--sdk-wrong);
	opacity: 0.14;
}

/* ---------- Notizen ---------- */

.sdk__notes {
	position: absolute;
	inset: 2px;
	display: grid;
	grid-template-columns: repeat(3, 1fr);
	grid-template-rows: repeat(3, 1fr);
	pointer-events: none;
}

.sdk__notes span {
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: clamp(7px, 1.9vw, 10px);
	line-height: 1;
	color: var(--sdk-note);
	font-variant-numeric: tabular-nums;
	visibility: hidden;
}

/* ---------- Status ---------- */

.sdk__status {
	font-family: var(--sdk-mono);
	font-size: 12px;
	line-height: 1.5;
	margin: 12px 0 0;
	min-height: 1.5em;
	opacity: 0.75;
}

.sdk__status--win {
	color: var(--sdk-pencil);
	font-weight: 700;
	opacity: 1;
}

.sdk__status--reveal { color: var(--sdk-wrong); opacity: 1; }

/* ---------- Zifferntasten ---------- */

.sdk__pad {
	display: grid;
	grid-template-columns: repeat(9, 1fr);
	gap: 4px;
	margin-top: 12px;
}

.sdk__key {
	position: relative;
	aspect-ratio: 3 / 4;
	border: 1px solid var(--sdk-rule);
	border-radius: 5px;
	background: var(--sdk-paper);
	cursor: pointer;
	padding: 0;
	display: flex;
	align-items: center;
	justify-content: center;
	appearance: none;
	transition: background-color 120ms ease;
}

.sdk__key:hover { background: var(--sdk-sel); }

.sdk__keyNum {
	font-size: clamp(15px, 3.4vw, 20px);
	font-weight: 600;
	color: var(--sdk-pencil);
	font-variant-numeric: tabular-nums;
}

/* Restzähler: wie viele dieser Ziffer noch fehlen */
.sdk__keyLeft {
	position: absolute;
	right: 3px;
	bottom: 2px;
	font-family: var(--sdk-mono);
	font-size: 9px;
	color: var(--sdk-note);
}

.sdk__key.is-done { opacity: 0.35; }
.sdk__key.is-done .sdk__keyNum { color: var(--sdk-note); }

.sdk__key:focus-visible,
.sdk__btn:focus-visible {
	outline: 2px solid var(--sdk-pencil);
	outline-offset: 2px;
}

/* ---------- Werkzeuge ---------- */

.sdk__tools,
.sdk__levels {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 6px;
	margin-top: 10px;
}

.sdk__levels {
	margin-top: 14px;
	padding-top: 12px;
	border-top: 1px solid var(--sdk-rule);
}

.sdk__levelsLabel {
	font-family: var(--sdk-mono);
	font-size: 10px;
	letter-spacing: 0.18em;
	text-transform: uppercase;
	opacity: 0.6;
	margin-right: 4px;
}

.sdk__btn {
	font-family: var(--sdk-mono);
	font-size: 11px;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	padding: 8px 13px;
	border-radius: 5px;
	background: var(--sdk-pencil);
	color: var(--sdk-paper);
	border: 1px solid var(--sdk-pencil);
	cursor: pointer;
}

.sdk__btn--ghost {
	background: transparent;
	color: inherit;
	border-color: var(--sdk-rule);
}

.sdk__btn--ghost.is-on {
	background: var(--sdk-pencil);
	color: var(--sdk-paper);
	border-color: var(--sdk-pencil);
}

.sdk__btn[disabled] { opacity: 0.35; cursor: not-allowed; }

.sdk__hint {
	font-size: 12px;
	line-height: 1.65;
	margin: 12px 0 0;
	opacity: 0.7;
}

.sdk__hint kbd {
	font-family: var(--sdk-mono);
	font-size: 11px;
	border: 1px solid var(--sdk-rule);
	border-radius: 3px;
	padding: 1px 4px;
}

/* ---------- Responsiv ---------- */

@media (max-width: 400px) {
	.sdk__pad { gap: 3px; }
	.sdk__btn { padding: 7px 10px; font-size: 10px; }
}

@media (prefers-reduced-motion: reduce) {
	.sdk *, .sdk *::before, .sdk *::after { transition: none !important; }
}


/* ===== Gemeinsame Gestaltung der Spiele =====================================
   Dieser Block ist in allen Spiele-Plugins identisch:
   schiffe-versenken, sudoku, vier-gewinnt, superhirn, schnick-schnack,
   mahjong, solitaer. Wird hier etwas geaendert, muss es dort mitgeaendert
   werden. Einzige Ausnahme ist --sp-accent: der ist je Spiel eigen und
   entspricht der Kachelfarbe in der Spiele-Icon-Navigation.

   Bewusst am Dateiende: so gewinnt er gegen die Regeln darueber, ohne dass
   der gewachsene Spielfeld-Code angefasst werden muss.
   ========================================================================== */

.sdk {
	--sp-paper:  #eef1f3;
	--sp-ink:    #14293b;
	--sp-muted:  #5b6f7f;
	--sp-line:   #c2ccd3;
	--sp-win:    #1f7a4d;
	--sp-lose:   #b3382c;
	--sp-radius: 12px;
	--sp-sans:   system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
	--sp-mono:   ui-monospace, "SFMono-Regular", "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
	--sp-accent: #38618c;

	container-type: inline-size;

	background: var(--sp-paper);
	color: var(--sp-ink);
	font-family: var(--sp-sans);
	border: 1px solid var(--sp-line);
	border-radius: var(--sp-radius);
}

.sdk__head {
	padding-bottom: 12px;
	margin-bottom: 16px;
	border-bottom: 1px solid var(--sp-line);
}

.sdk__eyebrow {
	font-family: var(--sp-mono);
	font-size: 11px;
	font-weight: 400;
	letter-spacing: 0.3em;
	text-transform: uppercase;
	color: var(--sp-accent);
	opacity: 1;
	margin: 0 0 4px;
}

.sdk__title {
	font-family: var(--sp-sans);
	font-size: clamp(21px, 6cqi, 30px);
	font-weight: 800;
	letter-spacing: 0.01em;
	line-height: 1.05;
	text-transform: none;
	margin: 0;
	color: var(--sp-ink);
}

.sdk__status {
	font-family: var(--sp-mono);
	font-size: 12.5px;
	line-height: 1.5;
	color: var(--sp-muted);
	opacity: 1;
	margin: 12px 0 0;
	min-height: 1.5em;
}

.sdk__status--win  { color: var(--sp-win);  font-weight: 700; opacity: 1; }
.sdk__status--lose { color: var(--sp-lose); font-weight: 700; opacity: 1; }

.sdk__btn {
	font-family: var(--sp-mono);
	font-size: 11px;
	font-weight: 700;
	letter-spacing: 0.14em;
	text-transform: uppercase;
	padding: 10px 16px;
	border-radius: 6px;
	background: var(--sp-accent);
	color: #fff;
	border: 1px solid var(--sp-accent);
	cursor: pointer;
}

.sdk__btn--ghost,
.sdk__btn--chip {
	background: transparent;
	color: var(--sp-ink);
	border-color: var(--sp-line);
	font-weight: 400;
}

.sdk__btn--chip.is-on,
.sdk__btn[aria-pressed="true"] {
	background: var(--sp-accent);
	color: #fff;
	border-color: var(--sp-accent);
	font-weight: 700;
}

.sdk__btn:hover:not([disabled]) { filter: brightness(1.08); background-color: var(--sp-accent); color: #fff; }
.sdk__btn[disabled] { opacity: 0.38; cursor: not-allowed; }
.sdk__btn:focus-visible { outline: 2px solid var(--sp-accent); outline-offset: 2px; }

.sdk__hint {
	font-family: var(--sp-sans);
	font-size: 12px;
	line-height: 1.6;
	color: var(--sp-muted);
	margin: 12px 0 0;
}

.sdk__hint kbd {
	font-family: var(--sp-mono);
	font-size: 11px;
	background: rgba(0, 0, 0, 0.06);
	border: 1px solid var(--sp-line);
	border-radius: 3px;
	padding: 1px 5px;
	color: var(--sp-ink);
}