/* A terminal look, after the num9 terminal game: dark background,
   monospace text, rounded boxes with their titles in the border. */

:root {
  --bg: #0f1116;
  --fg: #e4e6eb;
  --muted: rgb(140, 145, 160);
  --line: rgb(70, 74, 86);
  --accent: rgb(255, 200, 80);
  --hint: rgb(80, 230, 240);
  --good: rgb(120, 220, 120);
  --bad: rgb(255, 120, 120);
  --font: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--fg);
  font: 14px/1.45 var(--font);
}

body {
  display: flex;
  flex-direction: column;
}

a {
  color: var(--hint);
}

kbd {
  font: inherit;
  font-weight: 700;
  color: #000;
  background: var(--muted);
  padding: 0 0.5ch;
  border-radius: 3px;
}

header {
  display: flex;
  align-items: center;
  gap: 2ch;
  padding: 0.5rem 1rem;
  border-bottom: 1px solid var(--line);
}

.brand {
  color: var(--accent);
  text-decoration: none;
  white-space: nowrap;
}

.brand span {
  color: var(--muted);
}

nav {
  display: flex;
  gap: 0.5ch;
  flex-wrap: wrap;
}

nav a,
.source {
  color: var(--muted);
  text-decoration: none;
  padding: 0.1rem 0.8ch;
  border-radius: 4px;
}

nav a:hover,
.source:hover {
  color: var(--fg);
}

nav a.on {
  color: #000;
  background: var(--accent);
  font-weight: 700;
}

.source {
  margin-left: auto;
}

main {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
}

#loading {
  margin: 2rem;
  color: var(--muted);
}

section {
  flex: 1;
  min-height: 0;
  display: flex;
  flex-direction: column;
  padding: 0.9rem 1rem 0.5rem;
  gap: 0.9rem;
}

section[hidden] {
  display: none;
}

.intro {
  margin: 0;
  color: var(--muted);
  max-width: 110ch;
}

.intro b,
.intro em {
  color: var(--fg);
}

/* Boxes with the title set into the top border. */
.box {
  position: relative;
  border: 1px solid var(--muted);
  border-radius: 9px;
  padding: 0.75rem 1.2ch 0.5rem;
}

.box-title {
  position: absolute;
  top: -0.78em;
  left: 1.2ch;
  padding: 0 0.6ch;
  background: var(--bg);
  font-weight: 700;
  white-space: nowrap;
  max-width: calc(100% - 2.4ch);
  overflow: hidden;
  text-overflow: ellipsis;
}

.box-body {
  white-space: pre-wrap;
}

/* Board and side panel. */
.stage {
  flex: 1;
  min-height: 0;
  display: flex;
  gap: 1.2ch;
}

.board-box {
  flex: 1;
  min-width: 0;
  display: flex;
  padding: 0.7rem 0.6ch 0.4rem;
}

.canvas-wrap {
  flex: 1;
  min-height: 0;
  min-width: 0;
  position: relative;
  overflow: hidden;
}

.canvas-wrap canvas {
  position: absolute;
  inset: 0;
  touch-action: none;
  cursor: crosshair;
}

.zoom {
  position: absolute;
  right: 1ch;
  bottom: 0.5rem;
  display: flex;
  gap: 0.4ch;
}

.zoom button,
.key,
.decks button,
.record-list button {
  font: inherit;
  color: var(--fg);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 4px;
  cursor: pointer;
}

.zoom button[data-unspot] {
  width: auto;
  padding: 0 0.8ch;
  color: #000;
  background: var(--accent);
  border-color: var(--accent);
  font-weight: 700;
}

.zoom button[hidden] {
  display: none;
}

.lvl {
  cursor: pointer;
  border-radius: 3px;
}

.lvl:hover {
  background: rgba(255, 255, 255, 0.07);
}

.zoom button {
  width: 2.2em;
  height: 2.2em;
  background: rgba(15, 17, 22, 0.85);
}

.panel {
  width: 38ch;
  flex: none;
  display: flex;
  flex-direction: column;
  gap: 0.95rem;
  padding-top: 0.6rem;
  overflow-y: auto;
}

.panel .box-body {
  white-space: pre;
}

.panel .grow {
  flex: 1;
  min-height: 3.2rem;
}

.panel .row[data-send],
.panel .row[data-play] {
  cursor: pointer;
}

.panel .row[data-send]:hover,
.panel .row[data-play]:hover {
  background: rgba(255, 255, 255, 0.05);
}

.gap {
  height: 0.7em;
}

.message {
  padding: 0 1ch;
  white-space: normal;
}

.hand {
  display: flex;
  align-items: center;
  gap: 3ch;
  padding: 0.3rem 0 0.4rem 2ch;
  min-height: 5.4rem;
}

.hand > div:last-child > div:first-child {
  font-size: 1.6em;
  line-height: 1.1;
}

.shape {
  display: grid;
  gap: 0;
}

.shape i {
  width: 1.15rem;
  height: 1.15rem;
}

.gauge {
  position: relative;
  height: 1.45em;
  background: rgb(40, 44, 52);
}

.gauge div {
  height: 100%;
  background: var(--hint);
  opacity: 0.85;
}

.gauge span {
  position: absolute;
  inset: 0;
  text-align: center;
  mix-blend-mode: difference;
}

/* Key bar: chips that can be clicked too. */
.keys {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.2ch;
  padding: 0.5rem 0 0.2rem;
}

.key {
  border: none;
  padding: 0;
  color: var(--muted);
  white-space: nowrap;
}

.key b {
  color: #000;
  background: var(--muted);
  padding: 0 0.6ch;
  border-radius: 3px;
  margin-right: 0.4ch;
}

.key:hover b {
  background: var(--fg);
}

/* The summary over the board. */
.popup {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: min(62ch, calc(100% - 2ch));
  max-height: calc(100% - 2rem);
  overflow-y: auto;
  background: var(--bg);
  border: 1px solid var(--muted);
  border-radius: 9px;
  padding: 0.9rem 2ch 0.8rem;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.6);
}

.popup .box-title {
  position: static;
  padding: 0;
  margin-bottom: 0.5rem;
  color: var(--accent);
}

.popup .moves {
  columns: 2;
  margin-top: 0.4rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1.6ch;
}

/* Game analysis. */
.graph {
  display: block;
  width: 100%;
  height: 96px;
  cursor: pointer;
}

.graph text {
  font: 8px var(--font);
  fill: var(--muted);
}

.legend {
  font-size: 0.85em;
}

.movelist {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  white-space: normal;
}

.movelist .mv {
  font: inherit;
  font-size: 0.92em;
  padding: 0.05rem 0.6ch;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 4px;
  cursor: pointer;
}

.movelist .mv {
  color: var(--fg);
}

.movelist .mv small {
  color: var(--muted);
}

.movelist .mv.on {
  border-color: var(--accent);
  background: rgba(255, 200, 80, 0.15);
}

.panel .grades {
  white-space: normal;
}

/* Companion: the cards to enter. */
.cards {
  display: flex;
  align-items: center;
  gap: 0.5ch;
  flex-wrap: wrap;
}

.cards-label {
  color: var(--muted);
  margin-right: 1ch;
}

.cards button {
  font: inherit;
  min-width: 3.4em;
  padding: 0.2rem 0.6ch 0.15rem;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 1.15;
}

.cards button b {
  font-size: 1.35em;
}

.cards button small {
  font-size: 0.75em;
  letter-spacing: 0.1em;
  opacity: 0.85;
}

.cards button:disabled {
  opacity: 0.18;
  cursor: default;
}

.cards button:not(:disabled):active {
  transform: scale(0.94);
}

.your-score {
  display: flex;
  align-items: center;
  gap: 1.5ch;
  font-weight: 700;
}

.your-score input {
  font: inherit;
  font-size: 1.2em;
  width: 7ch;
  padding: 0.25rem 0.8ch;
  color: var(--fg);
  background: rgb(30, 33, 41);
  border: 1px solid var(--accent);
  border-radius: 6px;
}

.panel .wrap {
  white-space: normal;
}

/* The tiles still to come, drawn (dots on phones instead). */
.bag {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem 1.2ch;
  margin-top: 0.4rem;
  white-space: normal;
}

.bag-v {
  display: flex;
  align-items: flex-end;
  gap: 0.35ch;
}

.bag-v b {
  min-width: 1ch;
}

.bag .shape i {
  width: 0.32rem;
  height: 0.32rem;
}

.shape.used i[style] {
  opacity: 0.18;
}

.panel .box-body > div:has(+ .bag),
.panel .box-body > div:has(+ div + .bag) {
  display: none;
}

/* The challenge tray: on wider screens each number with its shapes, on
   phones (below) a coloured button with dots. */
.tray button {
  background: rgb(26, 29, 36);
  color: var(--fg);
  border: 1px solid var(--line);
  flex-direction: row;
  align-items: flex-end;
  gap: 0.5ch;
  padding: 0.35rem 0.9ch;
}

.tray button b {
  color: var(--c);
  align-self: center;
}

.tray button small {
  display: none;
}

.tray .shapes {
  display: flex;
  align-items: flex-end;
  gap: 0.4ch;
}

.tray .shape i {
  width: 0.6rem;
  height: 0.6rem;
}

.tray button:not(:disabled):hover {
  border-color: var(--c);
}

.tray button.held {
  border-color: var(--c);
  background: rgb(40, 44, 54);
}

/* A button that reads like a link (share this deal). */
.linkish {
  font: inherit;
  padding: 0;
  color: var(--hint);
  background: none;
  border: none;
  text-decoration: underline;
  cursor: pointer;
}

/* Challenges on a computer: submit the stack. */
.panel .submit {
  font: inherit;
  font-weight: 700;
  font-size: 1.1em;
  padding: 0.55rem;
  color: #000;
  background: var(--accent);
  border: none;
  border-radius: 7px;
  cursor: pointer;
}

.panel .submit:disabled {
  color: var(--muted);
  background: rgb(40, 44, 54);
  cursor: default;
}

/* Challenges: the tile you're holding. */
.tray button.held {
  outline: 3px solid var(--fg);
  outline-offset: 2px;
}

/* Challenges and records. */
.decks {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6ch;
}

#challenges .decks {
  flex-direction: column;
  gap: 0.35rem;
}

.deck-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.6ch;
}

.deck-size {
  min-width: 7ch;
  color: var(--muted);
  font-size: 0.85em;
}

.decks button,
.record-list button {
  padding: 0.2rem 1ch;
  color: var(--muted);
}

.decks button.on,
.record-list button.on {
  color: #000;
  background: var(--accent);
  border-color: var(--accent);
  font-weight: 700;
}

.record-list .box-body {
  white-space: normal;
}

.record-list .list {
  display: flex;
  gap: 0.6ch;
  overflow-x: auto;
  padding-bottom: 0.4rem;
}

.record-list button {
  flex: none;
  text-align: left;
  line-height: 1.25;
}

.record-list button span,
.record-list button small {
  display: block;
  color: inherit;
  opacity: 0.8;
  font-size: 0.85em;
}

/* About. */
#about {
  overflow-y: auto;
}

article {
  max-width: 92ch;
  margin: 0 auto 2rem;
}

article h1 {
  color: var(--accent);
  font-size: 1.4em;
}

article h2 {
  font-size: 1.1em;
  margin-top: 1.6em;
}

article p {
  color: #cfd2d8;
}

table {
  border-collapse: collapse;
  margin: 1rem 0;
}

th,
td {
  padding: 0.25rem 1.6ch;
  border-bottom: 1px solid var(--line);
  text-align: left;
}

th {
  color: var(--muted);
  font-weight: 500;
}

/* Help. */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: grid;
  place-items: center;
  z-index: 10;
  padding: 1rem;
}

.modal[hidden] {
  display: none;
}

.modal .box {
  background: var(--bg);
  max-width: 76ch;
  max-height: 100%;
  overflow-y: auto;
}

.modal .box-body {
  white-space: normal;
}

.modal dl {
  display: grid;
  grid-template-columns: 15ch 1fr;
  gap: 0.15rem 1ch;
}

.modal dt {
  color: var(--accent);
  font-weight: 700;
}

.modal dd {
  margin: 0;
}

.dim {
  color: var(--muted);
}

/* Touch controls, the status line and the panel's close button only show
   on touch screens and phones (below). */
.status,
.touchbar,
.sheet-close {
  display: none;
}

.touchbar {
  gap: 0.4rem;
  padding: 0.45rem 0 0.1rem;
}

.touchbar button {
  flex: 1 1 0;
  min-width: 0;
  min-height: 2.9rem;
  font: inherit;
  font-size: 1.05em;
  font-weight: 700;
  color: var(--fg);
  background: rgb(30, 33, 41);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 0.3ch;
  touch-action: manipulation;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.touchbar button:active {
  background: rgb(50, 54, 66);
}

.touchbar button.primary {
  flex-grow: 1.6;
  color: #000;
  background: var(--accent);
  border-color: var(--accent);
}

button {
  touch-action: manipulation;
}

@media (pointer: coarse) {
  .touchbar {
    display: flex;
  }
}

/* Phones and narrow windows: everything on one screen. The board takes
   what's left after a two-line status and the buttons; the panel becomes a
   sheet that slides up from the bottom (Info). */
@media (max-width: 860px) {
  html,
  body {
    height: 100%;
    height: 100dvh;
    font-size: 13px;
  }

  header {
    padding: 0.35rem 0.6rem;
    gap: 1.2ch;
  }

  .brand span,
  .source {
    display: none;
  }

  nav a {
    padding: 0.1rem 0.7ch;
  }

  nav {
    flex-wrap: nowrap;
    overflow-x: auto;
  }

  section {
    padding: 0.7rem 0.5rem calc(0.4rem + env(safe-area-inset-bottom));
    gap: 0.5rem;
  }

  section > .intro {
    display: none;
  }

  .stage {
    flex-direction: column;
    gap: 0.35rem;
  }

  .board-box {
    flex: 1;
    min-height: 0;
  }

  .zoom button[data-zoom] {
    display: none; /* pinch instead */
  }

  .status {
    display: block;
    padding: 0 0.6ch;
    line-height: 1.5;
  }

  .status .bag-line {
    letter-spacing: -0.02em;
  }

  .status > div {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .in-hand {
    display: inline-flex;
    align-items: center;
    gap: 0.6ch;
    vertical-align: middle;
  }

  .shape.mini i {
    width: 0.42rem;
    height: 0.42rem;
  }

  .touchbar {
    display: flex;
  }

  .keys {
    display: none;
  }

  .panel {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 5;
    width: auto;
    max-height: 78dvh;
    padding: 0.6rem 0.8rem calc(1rem + env(safe-area-inset-bottom));
    gap: 1rem;
    background: var(--bg);
    border-top: 1px solid var(--muted);
    border-radius: 14px 14px 0 0;
    box-shadow: 0 -12px 40px rgba(0, 0, 0, 0.7);
    transform: translateY(105%);
    transition: transform 0.2s ease;
    visibility: hidden;
  }

  .panel.open {
    transform: none;
    visibility: visible;
  }

  .panel .box-body {
    white-space: pre-wrap;
  }

  .panel .grow {
    flex: none;
  }

  .sheet-close {
    display: block;
    align-self: flex-end;
    font: inherit;
    color: var(--muted);
    background: none;
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 0.3rem 1ch;
  }

  .popup {
    font-size: 12.5px;
    padding: 0.8rem 1.6ch;
  }

  .popup .moves {
    columns: 1;
  }

  .popup .actions {
    display: none; /* the buttons below do the same */
  }

  /* No room for shapes on phones: dots instead, and coloured buttons. */
  .bag {
    display: none;
  }

  .panel .box-body > div:has(+ .bag),
  .panel .box-body > div:has(+ div + .bag) {
    display: block;
  }

  .tray button {
    flex-direction: column;
    align-items: center;
    gap: 0;
    background: var(--c);
    color: var(--t);
    border: none;
  }

  .tray button b {
    color: var(--t);
  }

  .tray button small {
    display: inline;
  }

  .tray .shapes {
    display: none;
  }

  /* The card buttons in two rows of five, big enough to tap easily. */
  .cards {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0.4rem;
  }

  .cards-label {
    display: none;
  }

  .cards .your-score {
    grid-column: 1 / -1;
  }

  .cards button {
    min-width: 0;
    min-height: 3.6rem;
    padding: 0.2rem 0;
    border-radius: 8px;
  }

  .cards button b {
    font-size: 1.9em;
  }

  .cards button small {
    font-size: 0.95em;
  }

  /* One strip to scroll sideways, sizes and all. */
  #challenges .decks {
    flex-direction: row;
  }

  .deck-row {
    display: contents;
  }

  .deck-size {
    min-width: auto;
    white-space: nowrap;
    padding-left: 0.6ch;
  }

  .decks {
    flex-wrap: nowrap;
    overflow-x: auto;
    flex: none;
  }

  .decks button {
    flex: none;
    min-height: 2.2rem;
  }

  .record-list {
    flex: none;
  }

  /* Two rows of five. */
  .record-list .list {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 0.35rem;
    overflow: visible;
  }

  .record-list .list button {
    padding: 0.15rem 0.6ch;
  }

  .record-list button small {
    display: none;
  }

  .modal dl {
    grid-template-columns: 11ch 1fr;
  }
}

/* The smallest phones: the tabs need the whole header. */
@media (max-width: 480px) {
  .brand {
    display: none;
  }
}