:root {
  --page-pad: clamp(8px, 2.5vw, 24px);
  --card-width: clamp(38px, 9.5vw, 96px);
  --card-height: calc(var(--card-width) * 1.34);
  --board-gap: clamp(4px, 1.8vw, 22px);
  --row-gap: clamp(20px, 5vw, 42px);
  --stack-offset: 34px;
  --font-size: clamp(11px, 1.8vw, 18px);
  --font-family: "SF Mono", "IBM Plex Mono", "Roboto Mono", "Cascadia Mono", "Menlo", "Consolas", monospace;
  --card-cut: clamp(5px, 1.2vw, 10px);
  --page-bg: #fff;
  --text-color: #000;
  --card-bg: #fff;
  --card-text: #000;
  --line-color: #000;
  --red-card: #7a3a3a;
  --active-bg: #000;
  --active-text: #fff;
  --heart-color: #8a2f2f;
  --club-color: #2d6b3f;
  --diamond-color: #315f9f;
  --spade-color: #000;
  --card-mark-size: clamp(10px, 1.7vw, 16px);
  --card-center-size: clamp(14px, 3.2vw, 26px);
  --runitaire-card-value-size: clamp(18px, 4.4vw, 38px);
}

html[data-theme="dark"],
body[data-theme="dark"] {
  --page-bg: #101010;
  --text-color: #f2f2f2;
  --card-bg: #f7f7f7;
  --card-text: #000;
  --line-color: #f2f2f2;
  --red-card: #9b5050;
  --active-bg: #f2f2f2;
  --active-text: #101010;
  --heart-color: #a94747;
  --club-color: #3f8a55;
  --diamond-color: #4779bd;
  --spade-color: #000;
}

html[data-theme="casino"],
body[data-theme="casino"] {
  --page-bg: #164832;
  --text-color: #f4f1e8;
  --card-bg: #f7f1e4;
  --card-text: #151a18;
  --line-color: #f4f1e8;
  --red-card: #9b2f2f;
  --active-bg: #b7d9c8;
  --active-text: #164832;
  --heart-color: #9b2f2f;
  --club-color: #2d6b4f;
  --diamond-color: #496f94;
  --spade-color: #151a18;
}

html[data-theme="runitaire"],
body[data-theme="runitaire"] {
  --page-bg: #6f343d;
  --text-color: #f4efe6;
  --card-bg: #f7f1e4;
  --card-text: #151a18;
  --line-color: #f4efe6;
  --red-card: #9b2f2f;
  --active-bg: #ead6c8;
  --active-text: #6f343d;
  --heart-color: #9b2f2f;
  --club-color: #2d6b4f;
  --diamond-color: #496f94;
  --spade-color: #151a18;
}

body[data-deck="jumbo"] {
  --card-mark-size: clamp(13px, 2.4vw, 22px);
  --card-center-size: clamp(22px, 5vw, 44px);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--page-bg);
  color: var(--text-color);
  font-family: var(--font-family);
  font-size: var(--font-size);
  font-weight: 450;
  overflow-x: hidden;
}

button {
  border: 1px solid var(--line-color);
  border-radius: 0;
  background: var(--page-bg);
  color: var(--text-color);
  font: inherit;
  padding: 4px 8px;
  text-transform: uppercase;
  cursor: pointer;
}

button:active {
  background: var(--active-bg);
  color: var(--active-text);
}

a {
  color: inherit;
}

.app {
  width: 100vw;
  min-height: 100vh;
  min-height: 100dvh;
  padding: var(--page-pad);
}

.header {
  position: relative;
  min-height: clamp(130px, 24.5vw, 245px);
  margin-bottom: clamp(2px, 0.8vh, 8px);
}

.settings-toggle {
  position: absolute;
  top: 0;
  right: 0;
}

.logo {
  position: absolute;
  top: 0;
  left: 50%;
  display: block;
  width: clamp(252px, 49vw, 470px);
  max-height: clamp(176px, 31vw, 310px);
  object-fit: contain;
  transform: translateX(-50%);
}

.run-info {
  width: max-content;
  max-width: 42vw;
}

.run-row {
  display: block;
}

p {
  margin: 0 0 8px;
  font-size: var(--font-size);
  font-weight: 450;
}

.editable-seed {
  display: inline-block;
  border-bottom: 1px dashed currentColor;
  cursor: text;
  line-height: 1;
  padding: 0 2px 1px;
}

.seed-input {
  width: 16ch;
  border: 1px solid var(--line-color);
  border-radius: 0;
  background: var(--page-bg);
  color: var(--text-color);
  font: inherit;
  padding: 0 2px;
}

.seed-status {
  display: inline-block;
  min-width: 3ch;
}

.seed-status:empty {
  display: none;
}

.board-status {
  min-height: 1.15em;
  margin-top: 4px;
}

.board-status:empty {
  display: none;
}

.controls {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  gap: 8px;
  margin-top: 12px;
}

.share-panel {
  width: max-content;
  max-width: 42vw;
  margin-top: 10px;
}

.share-panel button {
  margin-top: 4px;
}

.share-result {
  overflow-wrap: anywhere;
}

.copy-status {
  display: inline-block;
  min-width: 6ch;
  margin-left: 8px;
}

.share-panel[hidden] {
  display: none;
}

.settings-panel {
  position: absolute;
  top: clamp(34px, 5vw, 48px);
  right: 0;
  width: min(360px, 48vw);
  border: 1px solid var(--line-color);
  background: var(--page-bg);
  padding: 10px;
  z-index: 2000;
}

.settings-panel[hidden] {
  display: none;
}

.panel-tabs {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-bottom: 14px;
}

.panel-tabs::before,
.panel-tabs::after {
  content: "";
  position: absolute;
  bottom: 0;
  width: 8px;
  border-top: 1px solid var(--line-color);
}

.panel-tabs::before {
  left: calc((100% - 16px) / 3);
}

.panel-tabs::after {
  right: calc((100% - 16px) / 3);
}

.panel-tab.active {
  background: var(--active-bg);
  color: var(--active-text);
}

.panel-page[hidden] {
  display: none;
}

.settings-section + .settings-section {
  margin-top: 14px;
}

.settings-options {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.theme-options,
.deck-options {
  grid-template-columns: repeat(2, 1fr);
}

.setting-option.active {
  background: var(--active-bg);
  color: var(--active-text);
}

.settings-link {
  display: inline-block;
}

.game-option-title {
  display: flex;
  justify-content: flex-start;
  gap: 0.6ch;
}

.game-option-title a {
  opacity: 0.58;
  text-decoration: none;
}

.game-option-title a:focus,
.game-option-title a:hover {
  opacity: 1;
}

.history-list {
  margin-bottom: 8px;
}

.history-entry {
  margin-bottom: 8px;
}

.history-entry:last-child {
  margin-bottom: 0;
}

.history-list p {
  margin-bottom: 4px;
  overflow-wrap: anywhere;
}

.clear-history[hidden] {
  display: none;
}

.top-row {
  display: grid;
  grid-template-columns: repeat(7, var(--card-width));
  gap: var(--board-gap);
  align-items: start;
  width: max-content;
  max-width: 100%;
  margin-right: auto;
  margin-left: auto;
  margin-bottom: var(--row-gap);
}

.top-row[hidden] {
  display: none;
}

.pile-label {
  width: var(--card-width);
  min-height: clamp(26px, 7vw, 32px);
  margin-bottom: clamp(5px, 1.5vw, 8px);
  line-height: 1.15;
  text-align: center;
  overflow-wrap: anywhere;
}

.spider-top-row .pile-label {
  white-space: nowrap;
}

.spider-stock-cell {
  width: var(--card-width);
}

.spider-stock-cell .pile-label {
  transform: translateX(-0.14em);
}

.slot,
.tableau-pile {
  position: relative;
  width: var(--card-width);
  min-height: var(--card-height);
  border: 1px dashed var(--line-color);
  border-radius: 0;
}

.pile.has-cards {
  border-color: transparent;
}

.foundation-slot::before,
.freecell-slot::before,
.tableau-slot::before {
  content: "♥♣♦♠";
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--line-color);
  font-size: clamp(10px, 1.6vw, 16px);
  letter-spacing: 0;
  pointer-events: none;
}

.freecell-slot::before {
  content: "+";
  font-size: clamp(18px, 3vw, 26px);
}

.tableau-slot::before {
  content: "-";
  font-size: clamp(18px, 3vw, 26px);
}

.foundation-slot.has-cards::before,
.freecell-slot.has-cards::before,
.tableau-slot.has-cards::before {
  content: "";
}

.tableau {
  display: grid;
  grid-template-columns: repeat(7, var(--card-width));
  gap: var(--board-gap);
  align-items: start;
  width: max-content;
  max-width: 100%;
  margin-right: auto;
  margin-left: auto;
}

.tableau[hidden] {
  display: none;
}

.spider-top-row,
.spider-board,
.freecell-top-row,
.freecell-board {
  display: grid;
  gap: var(--board-gap);
  align-items: start;
  width: max-content;
  max-width: 100%;
  margin-right: auto;
  margin-left: auto;
}

.spider-top-row,
.freecell-top-row {
  margin-bottom: var(--row-gap);
}

.spider-top-row,
.spider-board {
  grid-template-columns: repeat(10, var(--card-width));
}

.freecell-top-row,
.freecell-board {
  grid-template-columns: repeat(8, var(--card-width));
}

.spider-top-row[hidden],
.freecell-top-row[hidden] {
  display: none;
}

.spider-board[hidden],
.freecell-board[hidden] {
  display: none;
}

.tableau-pile {
  min-height: var(--card-height);
}

.card {
  position: absolute;
  width: var(--card-width);
  height: var(--card-height);
  border: 1px solid var(--card-text);
  border-radius: 0;
  clip-path: polygon(
    var(--card-cut) 0,
    calc(100% - var(--card-cut)) 0,
    100% var(--card-cut),
    100% calc(100% - var(--card-cut)),
    calc(100% - var(--card-cut)) 100%,
    var(--card-cut) 100%,
    0 calc(100% - var(--card-cut)),
    0 var(--card-cut)
  );
  background: var(--card-bg);
  color: var(--card-text);
  display: grid;
  grid-template-rows: 1fr auto 1fr;
  padding: clamp(4px, 1.1vw, 8px);
  line-height: 1;
  user-select: none;
  touch-action: none;
  cursor: grab;
}

.card-mark {
  align-self: start;
  justify-self: start;
  font-size: var(--card-mark-size);
}

.card-mark-bottom {
  align-self: end;
  justify-self: end;
  transform: rotate(180deg);
}

.card-center {
  align-self: center;
  justify-self: center;
  font-size: var(--card-center-size);
}

.card.red .card-mark,
.card.red .card-center {
  color: var(--red-card);
}

.spider-board .card.blocked {
  filter: brightness(0.78);
}

body[data-deck="suit-color"] .suit-heart .card-mark,
body[data-deck="suit-color"] .suit-heart .card-center {
  color: var(--heart-color);
}

body[data-deck="suit-color"] .suit-club .card-mark,
body[data-deck="suit-color"] .suit-club .card-center {
  color: var(--club-color);
}

body[data-deck="suit-color"] .suit-diamond .card-mark,
body[data-deck="suit-color"] .suit-diamond .card-center {
  color: var(--diamond-color);
}

body[data-deck="suit-color"] .suit-spade .card-mark,
body[data-deck="suit-color"] .suit-spade .card-center {
  color: var(--spade-color);
}

body[data-deck="runitaire"] .card {
  grid-template-rows: auto 1fr;
  padding-bottom: clamp(5px, 1vw, 9px);
}

body[data-deck="runitaire"] .card-mark {
  font-size: var(--card-mark-size);
}

body[data-deck="runitaire"] .card-mark-bottom {
  display: none;
}

body[data-deck="runitaire"] .card-center {
  align-self: end;
  justify-self: center;
  margin-bottom: clamp(2px, 0.8vw, 6px);
  font-size: 0;
}

body[data-deck="runitaire"] .card-center::before {
  content: attr(data-label);
  display: inline-block;
  font-size: calc(var(--runitaire-card-value-size) * 0.85);
}

body[data-deck="runitaire"] .spider-board .card-center[data-rank="10"]::before {
  transform: translateX(-0.04em);
}

@media (max-width: 1260px) {
  .header {
    display: block;
    min-height: 0;
    margin-bottom: clamp(8px, 2vh, 12px);
  }

  .logo {
    position: relative;
    left: auto;
    width: clamp(252px, 49vw, 470px);
    max-height: none;
    margin: 0 auto 2px;
    transform: none;
  }

  .run-info {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    max-width: none;
    width: 100%;
    text-align: center;
  }

  .run-row {
    display: flex;
    justify-content: center;
    gap: 10px;
    max-width: 100%;
  }

  .run-info p {
    margin-bottom: 0;
    white-space: nowrap;
  }

  .controls {
    flex-basis: 100%;
    justify-content: center;
    gap: 6px;
    margin-top: 2px;
  }

  .controls .settings-toggle {
    position: static;
    top: auto;
    right: auto;
  }

  .share-panel {
    max-width: none;
    margin-right: auto;
    margin-left: auto;
    text-align: center;
  }

  .share-panel button {
    display: block;
    margin-right: auto;
    margin-left: auto;
  }

  .copy-status {
    display: block;
    margin-top: 4px;
    margin-left: 0;
  }

  .settings-panel {
    position: static;
    width: 100%;
    margin-top: 4px;
  }

  .spider-top-row,
  .spider-board {
    --card-width: clamp(28px, 7.4vw, 84px);
    --card-height: calc(var(--card-width) * 1.34);
    --card-mark-size: clamp(7px, 1.4vw, 13px);
    --card-center-size: clamp(9px, 2.1vw, 20px);
    --runitaire-card-value-size: clamp(11px, 2.9vw, 28px);
    --board-gap: clamp(3px, 1vw, 10px);
  }

  .spider-top-row .foundation-slot::before,
  .spider-board .tableau-slot::before {
    font-size: clamp(7px, 1.4vw, 12px);
  }

  .freecell-top-row,
  .freecell-board {
    --card-width: clamp(32px, 9vw, 84px);
    --card-height: calc(var(--card-width) * 1.34);
    --card-mark-size: clamp(8px, 1.6vw, 13px);
    --card-center-size: clamp(10px, 2.3vw, 20px);
    --runitaire-card-value-size: clamp(12px, 3.1vw, 28px);
    --board-gap: clamp(3px, 1vw, 10px);
  }
}

@media (max-width: 980px) {
  .logo {
    width: clamp(180px, 52vw, 315px);
  }
}

@media (max-width: 520px) {
  :root {
    --page-pad: 8px;
    --card-width: clamp(38px, 12.1vw, 52px);
    --card-height: calc(var(--card-width) * 1.34);
    --board-gap: 3px;
    --row-gap: clamp(14px, 4vw, 22px);
  }

  body[data-deck="jumbo"] {
    --card-mark-size: clamp(11px, 2vw, 18px);
    --card-center-size: clamp(18px, 4.1vw, 34px);
  }

  button {
    padding: 3px 6px;
  }

  .logo {
    width: clamp(168px, 64vw, 260px);
  }

  .settings-options {
    gap: 6px;
  }

  .spider-top-row,
  .spider-board {
    --card-width: clamp(23px, 8.2vw, 39px);
    --card-height: calc(var(--card-width) * 1.34);
    --card-mark-size: clamp(6px, 1.8vw, 9px);
    --card-center-size: clamp(8px, 2.4vw, 12px);
    --runitaire-card-value-size: clamp(9px, 3.2vw, 16px);
    --board-gap: 3px;
  }

  .spider-top-row .foundation-slot::before,
  .spider-board .tableau-slot::before {
    font-size: clamp(6px, 1.8vw, 9px);
  }

  .freecell-top-row,
  .freecell-board {
    --card-width: clamp(26px, 10.5vw, 42px);
    --card-height: calc(var(--card-width) * 1.34);
    --card-mark-size: clamp(6px, 1.8vw, 10px);
    --card-center-size: clamp(8px, 2.5vw, 13px);
    --runitaire-card-value-size: clamp(9px, 3.3vw, 17px);
    --board-gap: 3px;
  }
}

.card.face-down {
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    linear-gradient(var(--card-text), var(--card-text)) center / 1px 65% no-repeat,
    linear-gradient(90deg, var(--card-text), var(--card-text)) center / 65% 1px no-repeat,
    var(--card-bg);
  cursor: default;
}

.card.dragging {
  pointer-events: none;
  cursor: grabbing;
  will-change: transform;
}

.drop-target::after {
  box-sizing: border-box;
  content: "";
  position: absolute;
  top: var(--drop-top, 0);
  left: 0;
  width: var(--card-width);
  height: var(--card-height);
  border: 2px solid var(--line-color);
  pointer-events: none;
  z-index: 999;
}

.rules-page {
  max-width: 760px;
  margin: 0 auto;
  padding: var(--page-pad);
}

.rules-logo {
  display: block;
  width: min(360px, 70vw);
  margin: 0 auto clamp(18px, 5vw, 38px);
}

.rules-page h1,
.rules-page h2 {
  margin: 0 0 12px;
  font-size: inherit;
  font-weight: 700;
  text-transform: uppercase;
}

.rules-page section {
  margin-top: 24px;
}

.rules-page ul {
  margin: 0;
  padding-left: 2ch;
}

.rules-page li {
  margin-bottom: 8px;
}

.rules-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
  margin-bottom: 18px;
}

.rules-nav a,
.rules-nav span {
  border-bottom: 1px solid currentColor;
  text-decoration: none;
  text-transform: uppercase;
}

.rules-nav [aria-current="page"] {
  opacity: 0.55;
}