:root {
  --bg: #1b1b1b;
  --bg-soft: #1f1f1f;
  --nav-bg: rgba(27, 27, 27, 0.98);
  --card-bg: #242424;
  --card-hover: #2a2a2a;
  --border-color: #333333;
  --text: #ffffff;
  --text-muted: #8e8e93;
  --accent: #8354f7;
  --accent-hover: #9b72f9;
  --accent-tint: rgba(131, 84, 247, 0.12);
  --up: #34c759;
  --down: #ff3b30;
  --played: #6b7280;
  --radius: 8px;
  --radius-lg: 10px;
  --btn-radius: 6px;
  --font: "Montserrat", "Codec Pro", system-ui, -apple-system, sans-serif;
  --brand-gradient: linear-gradient(135deg, #8354f7, #9b72f9);
  --n1: #9b72f9;
  --n2: #34c759;
  --n3: #ffb020;
  --n4: #ff6b6b;
  --n5: #ff3b8d;
  --n6: #35c5d6;
  --n7: #cfcfd6;
  --n8: #8e8e93;
}

[data-theme="light"] {
  --bg: #f4f4f6;
  --bg-soft: #ececf0;
  --card-bg: #ffffff;
  --card-hover: #efeff2;
  --border-color: #e2e2e7;
  --text: #1c1c1e;
  --text-muted: #6b6b72;
  --accent: #8354f7;
  --accent-hover: #6f3ff0;
  --up: #1f9d49;
  --down: #e02424;
  --n1: #6f3ff0;
  --n7: #3a3a40;
}

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

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100svh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  display: flex;
  justify-content: center;
  padding: env(safe-area-inset-top) env(safe-area-inset-right)
    env(safe-area-inset-bottom) env(safe-area-inset-left);
}

.app {
  width: 100%;
  max-width: 760px;
  padding: 28px 20px 20px;
}

/* Kopfbereich ------------------------------------------------------------ */
.app__head {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}

.brand {
  flex: 0 0 auto;
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--brand-gradient);
  color: #fff;
  display: grid;
  place-items: center;
}

.brand svg {
  width: 24px;
  height: 24px;
}

.app__title {
  margin: 0;
  font-size: 1.7rem;
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1.1;
}

.app__sub {
  margin: 2px 0 0;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 500;
}

/* Tabs ------------------------------------------------------------------- */
.tabs {
  display: flex;
  gap: 4px;
  padding: 5px;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  margin-bottom: 18px;
}

.tab {
  flex: 1;
  min-height: 40px;
  border: none;
  border-radius: 6px;
  background: transparent;
  color: var(--text-muted);
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.tab:hover {
  color: var(--text);
}

.tab.is-active {
  background: var(--card-hover);
  color: var(--text);
}

.tab:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px var(--accent-tint);
}

/* Spiel ------------------------------------------------------------------ */
.game {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.bar {
  display: flex;
  align-items: center;
  gap: 12px;
}

.bar--bottom {
  justify-content: space-between;
}

.stat {
  display: flex;
  flex-direction: column;
  min-width: 84px;
  padding: 6px 14px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  background: var(--accent-tint);
}

.stat--right {
  align-items: flex-end;
  margin-left: auto;
}

.stat__label {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.stat__value {
  font-size: 1.2rem;
  font-weight: 800;
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
}

.btn--restart {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 auto;
}

.btn--restart svg {
  width: 18px;
  height: 18px;
}

/* Board ------------------------------------------------------------------ */
.board-wrap {
  position: relative;
  display: flex;
  justify-content: center;
  padding: 12px;
  background: var(--bg-soft);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow-x: auto;
}

.board {
  display: grid;
  grid-template-columns: repeat(var(--cols, 9), var(--cell, 34px));
  grid-auto-rows: var(--cell, 34px);
  gap: 2px;
  user-select: none;
  -webkit-user-select: none;
  -webkit-touch-callout: none;
}

.cell {
  width: var(--cell, 34px);
  height: var(--cell, 34px);
  padding: 0;
  border: 1px solid var(--border-color);
  border-radius: 5px;
  background: var(--card-hover);
  color: var(--text);
  font-family: inherit;
  font-size: calc(var(--cell, 34px) * 0.5);
  font-weight: 800;
  line-height: 1;
  display: grid;
  place-items: center;
  cursor: pointer;
  touch-action: manipulation;
  transition: background-color 0.12s ease, border-color 0.12s ease;
}

.cell:hover:not(.is-revealed) {
  border-color: var(--accent);
  background: var(--card-bg);
}

.cell:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-tint);
}

.cell.is-revealed {
  border-color: transparent;
  background: var(--bg);
  cursor: default;
}

.cell.is-flagged {
  color: var(--accent-hover);
}

.cell.is-mine {
  background: color-mix(in srgb, var(--down) 22%, var(--bg));
  border-color: var(--down);
  color: var(--down);
}

.cell.is-exploded {
  background: var(--down);
  border-color: var(--down);
  color: #fff;
}

.cell.is-wrong {
  background: color-mix(in srgb, var(--down) 14%, var(--bg));
  border-color: var(--down);
  color: var(--down);
}

.cell.is-mine svg,
.cell.is-exploded svg,
.cell.is-flagged svg,
.cell.is-wrong svg {
  width: 58%;
  height: 58%;
}

.cell.n1 { color: var(--n1); }
.cell.n2 { color: var(--n2); }
.cell.n3 { color: var(--n3); }
.cell.n4 { color: var(--n4); }
.cell.n5 { color: var(--n5); }
.cell.n6 { color: var(--n6); }
.cell.n7 { color: var(--n7); }
.cell.n8 { color: var(--n8); }

/* Overlay ---------------------------------------------------------------- */
.overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  text-align: center;
  padding: 28px 24px;
  background: rgba(27, 27, 27, 0.84);
  background: color-mix(in srgb, var(--bg) 84%, transparent);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.overlay[hidden] {
  display: none;
}

.overlay__title {
  margin: 0;
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -1px;
  line-height: 1.1;
}

.overlay__text {
  margin: 0;
  max-width: 36ch;
  color: var(--text-muted);
  font-size: 0.92rem;
}

.overlay__text strong {
  color: var(--accent-hover);
  font-weight: 800;
}

/* Komponenten ------------------------------------------------------------ */
.badge {
  display: inline-flex;
  align-items: center;
  margin: 0;
  padding: 4px 14px;
  border: 1px solid var(--accent);
  border-radius: 20px;
  background: var(--accent-tint);
  color: var(--accent-hover);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.badge--muted {
  border-color: var(--border-color);
  background: var(--card-hover);
  color: var(--text-muted);
}

.badge--success {
  border-color: var(--up);
  background: color-mix(in srgb, var(--up) 12%, transparent);
  color: var(--up);
}

.btn {
  min-height: 46px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: var(--btn-radius);
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
  cursor: pointer;
  transition: transform 0.2s ease, background-color 0.2s ease,
    border-color 0.2s ease;
}

.btn--primary {
  background: var(--accent);
}

.btn--primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0);
}

.btn:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-tint);
}

.flag-toggle {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 44px;
  padding: 0 16px;
  border: 1px solid var(--border-color);
  border-radius: 999px;
  background: var(--card-bg);
  color: var(--text-muted);
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 700;
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, background-color 0.2s ease;
}

.flag-toggle__icon svg {
  width: 18px;
  height: 18px;
  display: block;
}

.flag-toggle[aria-pressed="true"] {
  color: var(--accent-hover);
  border-color: var(--accent);
  background: var(--accent-tint);
}

.flag-toggle:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-tint);
}

.status {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.85rem;
  font-weight: 600;
}

/* Hinweis & Fuß ---------------------------------------------------------- */
.hint {
  margin: 18px 0 0;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 500;
}

.hint strong {
  color: var(--text);
  font-weight: 700;
}

.app__foot {
  display: flex;
  justify-content: space-between;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.78rem;
  font-weight: 600;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Zurück zur Spielhalle -------------------------------------------------- */
.backlink {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  align-self: flex-start;
  width: fit-content;
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 700;
  transition: color 0.2s ease;
}

.backlink svg {
  width: 16px;
  height: 16px;
}

.backlink:hover {
  color: var(--accent-hover);
}

.backlink:focus-visible {
  outline: none;
  color: var(--accent-hover);
}


/* Vollbild-/Fokusmodus (mobile) --------------------------------------- */
:root {
  --avail: calc(100svh - 300px);
}

html.is-fs {
  --avail: calc(100dvh - 140px);
}

html.is-fs .board-wrap {
  max-height: calc(100dvh - 190px);
  overflow: auto;
}