:root {
  --bg: #f5f4ef;
  --surface: #ffffff;
  --surface-2: #faf9f5;
  --text: #191921;
  --muted: #6c6b76;
  --border: #e3e1d9;
  --line: #2a2a33;
  --thin: #dcdad2;
  --accent: #4058f2;
  --accent-ink: #ffffff;
  --accent-soft: #e8ebfe;
  --peer: #f0efe9;
  --same: #d3d9fd;
  --sel: #bcc6fc;
  --err: #d23b3b;
  --err-soft: #fce4e4;
  --ok: #1d8f5a;
  --ok-soft: #e1f4ea;
  --warn: #a86a00;
  --warn-soft: #fcf1dc;
  --shadow: 0 1px 2px rgba(20, 20, 30, .04), 0 10px 30px rgba(20, 20, 30, .07);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #111116; --surface: #1a1a21; --surface-2: #16161c; --text: #ececf1; --muted: #9998a6;
    --border: #2b2b35; --line: #b9b9c6; --thin: #33333e; --accent: #7d8cff; --accent-ink: #0f1020;
    --accent-soft: #242949; --peer: #202029; --same: #2d3462; --sel: #3a4383; --err: #ff6f6f;
    --err-soft: #3a1f23; --ok: #4fd08f; --ok-soft: #173326; --warn: #f0b44c; --warn-soft: #362a14;
    --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 10px 30px rgba(0, 0, 0, .35);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #111116; --surface: #1a1a21; --surface-2: #16161c; --text: #ececf1; --muted: #9998a6;
  --border: #2b2b35; --line: #b9b9c6; --thin: #33333e; --accent: #7d8cff; --accent-ink: #0f1020;
  --accent-soft: #242949; --peer: #202029; --same: #2d3462; --sel: #3a4383; --err: #ff6f6f;
  --err-soft: #3a1f23; --ok: #4fd08f; --ok-soft: #173326; --warn: #f0b44c; --warn-soft: #362a14;
  --shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 10px 30px rgba(0, 0, 0, .35);
  color-scheme: dark;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; -webkit-tap-highlight-color: transparent; }
input { font: inherit; color: inherit; }
h1 { font-size: clamp(1.6rem, 3vw, 2.1rem); font-weight: 800; letter-spacing: -.02em; line-height: 1.2; }
h2 { font-size: 1.3rem; font-weight: 700; letter-spacing: -.01em; }
h3 { font-size: 1.1rem; font-weight: 700; }
.muted { color: var(--muted); }
.small { font-size: .82rem; }
svg { display: block; }
[data-ic] { display: inline-flex; }

/* ---------- Header ---------- */
.top {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 12px max(16px, calc((100vw - 1100px) / 2));
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.1rem; letter-spacing: -.01em; }
.logo { width: 28px; height: 28px; border-radius: 8px; background: var(--accent); display: grid; grid-template-columns: repeat(3, 1fr); gap: 2px; padding: 5px; }
.logo i { background: #fff; border-radius: 1.5px; }
.logo i:nth-child(even) { opacity: .5; }
.tabs { display: flex; gap: 2px; background: var(--surface); border: 1px solid var(--border); padding: 4px; border-radius: 12px; }
.tabs button { padding: 7px 16px; border-radius: 8px; font-weight: 600; font-size: .9rem; color: var(--muted); transition: background .2s, color .2s; }
.tabs button:hover { color: var(--text); }
.tabs button.active { background: var(--accent); color: var(--accent-ink); }
.icon-btn { width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center; border: 1px solid var(--border); background: var(--surface); color: var(--muted); transition: color .2s; }
.icon-btn:hover { color: var(--text); }

main { max-width: 1100px; margin: 0 auto; padding: 36px 16px 80px; }
.view { display: none; }
.view.active { display: block; animation: fade .35s ease; }
@keyframes fade { from { opacity: 0; transform: translateY(8px); } }

/* ---------- Layout ---------- */
.play-layout { display: grid; grid-template-columns: minmax(0, 560px) 320px; gap: 40px; justify-content: center; align-items: start; }
.panel { display: flex; flex-direction: column; gap: 16px; padding-top: 44px; }
.panel-block { display: flex; flex-direction: column; gap: 10px; }
.row { display: flex; gap: 10px; }
.grow { flex: 1; }

/* ---------- Board meta ---------- */
.board-meta { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 12px; font-size: .9rem; color: var(--muted); min-height: 36px; }
.meta-item b { color: var(--text); font-weight: 700; margin-left: 4px; font-variant-numeric: tabular-nums; }
.meta-item b.bump { animation: bump .4s ease; color: var(--err); }
@keyframes bump { 40% { transform: scale(1.35); } }
.badge { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 999px; font-size: .78rem; font-weight: 700; letter-spacing: .02em; background: var(--accent-soft); color: var(--accent); max-width: 50%; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.d-easy { background: var(--ok-soft); color: var(--ok); }
.d-medium { background: var(--accent-soft); color: var(--accent); }
.d-hard { background: var(--warn-soft); color: var(--warn); }
.d-expert { background: var(--err-soft); color: var(--err); }
.d-custom { background: color-mix(in srgb, #8b5cf6 16%, transparent); color: #8b5cf6; }
.timer { display: inline-flex; align-items: center; gap: 8px; font-variant-numeric: tabular-nums; font-weight: 700; color: var(--text); font-size: 1.05rem; padding: 5px 10px 5px 14px; border-radius: 10px; background: var(--surface); border: 1px solid var(--border); transition: border-color .2s; }
.timer:hover { border-color: var(--accent); }
.timer-ic { color: var(--muted); }

/* ---------- Board ---------- */
.board-frame { position: relative; }
.board {
  container-type: inline-size;
  display: grid; grid-template-columns: repeat(9, minmax(0, 1fr)); grid-template-rows: repeat(9, minmax(0, 1fr));
  width: 100%; aspect-ratio: 1;
  border: 2px solid var(--line); border-radius: 12px; overflow: hidden;
  background: var(--surface); box-shadow: var(--shadow);
  user-select: none; -webkit-user-select: none; touch-action: manipulation;
}
.cell {
  position: relative; display: flex; align-items: center; justify-content: center; min-height: 0; overflow: hidden; line-height: 1;
  border-right: 1px solid var(--thin); border-bottom: 1px solid var(--thin);
  font-size: calc(5.6cqi * var(--font-scale, 1)); font-family: var(--board-font, inherit); font-weight: 500; color: var(--num-user, var(--accent));
  cursor: pointer; transition: background-color .12s;
}
.cell.c8 { border-right: 0; }
.cell.r8 { border-bottom: 0; }
.cell.br { border-right: 2px solid var(--line); }
.cell.bb { border-bottom: 2px solid var(--line); }
.cell.given { color: var(--num-given, var(--text)); font-weight: 700; }
.cell.peer { background: var(--peer); }
.cell.same { background: var(--same); }
.cell.err { color: var(--err); }
.cell.err:not(.given) { background: var(--err-soft); }
.cell.sel { background: var(--sel); }
.cell.pop { animation: pop .3s ease; }
@keyframes pop { 50% { transform: scale(1.18); } }
.editor .cell { color: var(--num-given, var(--text)); font-weight: 700; }
.editor .cell.err { color: var(--err); }

.notes { font-family: 'Inter', system-ui, sans-serif; position: absolute; inset: 3%; display: grid; grid-template-columns: repeat(3, 1fr); grid-template-rows: repeat(3, 1fr); font-size: 2.05cqi; font-weight: 600; color: var(--muted); line-height: 1; }
.notes span { display: flex; align-items: center; justify-content: center; border-radius: 3px; }
.notes span.hl { background: var(--accent); color: var(--accent-ink); }

.board.solved .cell { animation: wave .7s ease both; animation-delay: calc(var(--d) * 40ms); }
@keyframes wave { 40% { background: var(--accent-soft); transform: scale(.9); } }

.pause-overlay, .busy-overlay {
  position: absolute; inset: 0; display: none; place-items: center; align-content: center; gap: 14px;
  border-radius: 12px; background: color-mix(in srgb, var(--surface) 75%, transparent);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
}
.pause-overlay p { font-weight: 800; font-size: 1.4rem; letter-spacing: -.01em; }
.is-paused .pause-overlay { display: grid; }
.is-paused .cell { color: transparent !important; }
.is-busy .busy-overlay { display: grid; }
.spinner { width: 34px; height: 34px; border: 3px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Controls ---------- */
.seg { display: grid; grid-template-columns: repeat(4, 1fr); background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 4px; gap: 2px; }
.seg button { padding: 8px 4px; border-radius: 8px; font-size: .85rem; font-weight: 600; color: var(--muted); transition: background .2s, color .2s; }
.seg button:hover { color: var(--text); }
.seg button.active { background: var(--accent-soft); color: var(--accent); }

.btn-primary, .btn-outline, .btn-ghost, .btn-danger {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 22px; border-radius: 10px; font-weight: 600; font-size: .95rem;
  transition: transform .2s ease, box-shadow .2s ease, background .2s, opacity .2s;
}
.btn-primary { background: var(--accent); color: var(--accent-ink); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 8px 20px color-mix(in srgb, var(--accent) 30%, transparent); }
.btn-outline { border: 1.5px solid var(--accent); color: var(--accent); }
.btn-outline:hover { background: var(--accent-soft); }
.btn-ghost { color: var(--muted); border: 1px solid var(--border); background: var(--surface); }
.btn-ghost:hover { color: var(--text); }
.btn-danger { background: var(--err); color: #fff; }
.btn-sm { padding: 7px 14px; font-size: .85rem; border-radius: 8px; }
.block { width: 100%; }
button:disabled { opacity: .45; cursor: not-allowed; transform: none !important; box-shadow: none !important; }

.tools { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; }
.tools.two { grid-template-columns: repeat(2, 1fr); }
.tools button {
  display: flex; flex-direction: column; align-items: center; gap: 5px;
  padding: 12px 4px; border-radius: 12px; font-size: .8rem; font-weight: 600; color: var(--muted);
  background: var(--surface); border: 1px solid var(--border); transition: color .2s, border-color .2s, background .2s;
}
.tools.two button { flex-direction: row; justify-content: center; gap: 8px; }
.tools button:hover { color: var(--text); border-color: color-mix(in srgb, var(--accent) 40%, var(--border)); }
.tools button.on { color: var(--accent); border-color: var(--accent); background: var(--accent-soft); }
.tools button { position: relative; }
.pill { position: absolute; top: 6px; right: 6px; font-style: normal; font-size: .62rem; line-height: 1.4; padding: 1px 6px; border-radius: 999px; background: var(--peer); color: var(--muted); }
.on .pill { background: var(--accent); color: var(--accent-ink); }

.numpad { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.key {
  position: relative; aspect-ratio: 1.25; border-radius: 12px;
  background: var(--surface); border: 1px solid var(--border);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  transition: transform .12s, border-color .2s, background .2s;
}
.key:hover { border-color: var(--accent); }
.key:active { transform: scale(.95); }
.kd { font-family: var(--board-font, inherit); font-size: calc(1.7rem * var(--font-scale, 1)); font-weight: 600; color: var(--num-user, var(--accent)); display: flex; align-items: center; justify-content: center; min-height: 1.1em; line-height: 1; }
.kc { font-size: .7rem; color: var(--muted); font-weight: 600; margin-top: 4px; min-height: 1em; }
.key.done { opacity: .35; }
.notes-mode .kd { font-size: 1.2rem; }

.kbd-help { font-size: .76rem; color: var(--muted); line-height: 1.9; }
kbd { font-family: inherit; font-size: .7rem; font-weight: 600; padding: 1px 6px; border-radius: 5px; border: 1px solid var(--border); background: var(--surface); }

.text-in { width: 100%; padding: 12px 14px; border-radius: 10px; border: 1px solid var(--border); background: var(--surface); outline: none; transition: border-color .2s; }
.text-in:focus { border-color: var(--accent); }

.status { font-size: .88rem; font-weight: 500; padding: 10px 14px; border-radius: 10px; display: none; }
.status.show { display: block; }
.status.ok { background: var(--ok-soft); color: var(--ok); }
.status.warn { background: var(--warn-soft); color: var(--warn); }
.status.err { background: var(--err-soft); color: var(--err); }

/* ---------- Lists ---------- */
.saved { max-width: 920px; margin: 64px auto 0; }
.saved h3 { margin-bottom: 14px; }
.list { display: flex; flex-direction: column; gap: 10px; }
.empty { padding: 36px; text-align: center; color: var(--muted); border: 1.5px dashed var(--border); border-radius: 14px; font-size: .92rem; }

.item {
  display: flex; align-items: center; gap: 16px; width: 100%; text-align: left;
  padding: 14px 18px; border-radius: 14px; background: var(--surface); border: 1px solid var(--border);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s;
}
button.item:hover, .item.hover:hover { transform: translateY(-2px); box-shadow: var(--shadow); border-color: color-mix(in srgb, var(--accent) 30%, var(--border)); }
.item-info { flex: 1; min-width: 0; }
.item-title { display: flex; align-items: center; gap: 8px; font-weight: 600; flex-wrap: wrap; }
.item-title .nm { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 100%; }
.item-right { text-align: right; display: flex; flex-direction: column; align-items: flex-end; gap: 2px; }
.item-right b { font-size: 1.2rem; font-variant-numeric: tabular-nums; letter-spacing: -.01em; }
.item-actions { display: flex; gap: 8px; }
.best-tag { font-size: .68rem; font-weight: 700; padding: 2px 8px; border-radius: 999px; background: var(--accent); color: var(--accent-ink); letter-spacing: .03em; text-transform: uppercase; }

.thumb { width: 54px; height: 54px; flex: none; display: grid; grid-template-columns: repeat(9, 1fr); gap: 1px; padding: 3px; border-radius: 8px; background: var(--peer); border: 1px solid var(--border); }
.thumb i { border-radius: 1px; background: var(--surface); }
.thumb i.g { background: var(--accent); opacity: .75; }

/* ---------- History ---------- */
.hist-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 16px; flex-wrap: wrap; margin-bottom: 28px; }
.hist-wrap { max-width: 920px; margin: 0 auto; }
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; margin-bottom: 28px; }
.stat { background: var(--surface); border: 1px solid var(--border); border-radius: 14px; padding: 20px 22px; }
.stat span { font-size: .8rem; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .05em; }
.stat b { display: block; font-size: 1.7rem; font-weight: 800; letter-spacing: -.02em; font-variant-numeric: tabular-nums; margin-top: 4px; }
.chips { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 16px; }
.chip { padding: 7px 14px; border-radius: 999px; font-size: .85rem; font-weight: 600; color: var(--muted); background: var(--surface); border: 1px solid var(--border); transition: .2s; }
.chip em { font-style: normal; opacity: .6; margin-left: 4px; }
.chip.active { background: var(--text); color: var(--bg); border-color: var(--text); }

/* PIN */
.pin-card { max-width: 420px; margin: 40px auto; text-align: center; background: var(--surface); border: 1px solid var(--border); border-radius: 20px; padding: 44px 32px; box-shadow: var(--shadow); }
.lock-ic { width: 56px; height: 56px; border-radius: 16px; background: var(--accent-soft); color: var(--accent); display: grid; place-items: center; margin: 0 auto 18px; }
.pin-card h2 { margin-bottom: 6px; }
.pin-boxes { position: relative; display: flex; justify-content: center; gap: 12px; margin: 28px 0 12px; cursor: text; }
.pin-boxes input { position: absolute; inset: 0; opacity: 0; width: 100%; font-size: 16px; caret-color: transparent; }
.pin-boxes span { width: 56px; height: 64px; border-radius: 14px; border: 1.5px solid var(--border); background: var(--surface-2); display: grid; place-items: center; transition: border-color .15s, transform .15s; }
.pin-boxes span.cur { border-color: var(--accent); }
.pin-boxes span.filled::after { content: ''; width: 14px; height: 14px; border-radius: 50%; background: var(--text); animation: pop .2s ease; }
.pin-boxes.shake { animation: shake .4s ease; }
.pin-boxes.shake span { border-color: var(--err); }
@keyframes shake { 20%, 60% { transform: translateX(-8px); } 40%, 80% { transform: translateX(8px); } }
.pin-msg { min-height: 1.4em; font-size: .88rem; color: var(--err); font-weight: 500; }
.pin-links { margin-top: 18px; display: flex; justify-content: center; gap: 18px; }
.link { color: var(--muted); font-size: .85rem; font-weight: 500; text-decoration: underline; text-underline-offset: 3px; }
.link:hover { color: var(--text); }

/* ---------- Modal ---------- */
dialog {
  margin: auto; border: 0; border-radius: 20px; padding: 30px;
  background: var(--surface); color: var(--text);
  width: min(460px, calc(100vw - 32px)); max-height: calc(100vh - 32px);
  box-shadow: 0 30px 80px rgba(0, 0, 0, .25);
}
dialog[open] { animation: modal-in .25s ease; }
@keyframes modal-in { from { opacity: 0; transform: translateY(12px) scale(.98); } }
dialog::backdrop { background: rgba(10, 10, 20, .45); backdrop-filter: blur(3px); }
dialog h3 { font-size: 1.3rem; margin-bottom: 8px; }
.modal-actions { display: flex; gap: 10px; justify-content: flex-end; margin-top: 24px; }
.modal-actions > * { flex: 1; }
.done { text-align: center; }
.done-ic { width: 64px; height: 64px; border-radius: 50%; background: var(--ok-soft); color: var(--ok); display: grid; place-items: center; margin: 0 auto 16px; }
.big-time { font-size: 3rem; font-weight: 800; letter-spacing: -.03em; font-variant-numeric: tabular-nums; line-height: 1.1; margin: 8px 0; }
.new-best { display: inline-block; margin-top: 12px; padding: 5px 12px; border-radius: 999px; background: var(--accent); color: var(--accent-ink); font-size: .8rem; font-weight: 700; }
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 18px 0 0; }
.detail-grid div { background: var(--surface-2); border: 1px solid var(--border); border-radius: 10px; padding: 10px 14px; }
.detail-grid span { display: block; font-size: .72rem; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; font-weight: 600; }
.detail-grid b { font-variant-numeric: tabular-nums; }
.mini { margin-top: 16px; box-shadow: none; }
.mini .cell { cursor: default; }

.toast {
  position: fixed; left: 50%; bottom: 28px; transform: translate(-50%, 20px); opacity: 0; pointer-events: none;
  background: var(--text); color: var(--bg); padding: 11px 18px; border-radius: 10px; font-size: .9rem; font-weight: 500;
  transition: opacity .25s, transform .25s; z-index: 50; max-width: calc(100vw - 32px);
}
.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  main { padding-top: 20px; }
  .play-layout { grid-template-columns: minmax(0, 560px); gap: 16px; }
  .panel { padding-top: 0; }
  #view-play .new-block { order: 3; }
  .kbd-help { display: none; }
  .numpad { grid-template-columns: repeat(9, 1fr); gap: 5px; }
  .key { aspect-ratio: auto; padding: 10px 0 6px; border-radius: 10px; }
  .kd { font-size: calc(1.45rem * var(--font-scale, 1)); }
  .kc { font-size: .62rem; margin-top: 2px; }
  .stats { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 520px) {
  .top { flex-wrap: wrap; }
  .brand { order: 1; }
  .top-right { order: 2; }
  .tabs { order: 3; width: 100%; }
  .tabs button { flex: 1; }
  .tools button { font-size: .72rem; padding: 10px 2px; }
  .item { padding: 12px 14px; gap: 12px; }
  .thumb { width: 44px; height: 44px; }
  .item-right b { font-size: 1.05rem; }
  .stat { padding: 16px; }
  .stat b { font-size: 1.35rem; }
  .pin-card { padding: 36px 20px; }
  .pin-boxes span { width: 52px; height: 60px; }
  .saved-item { flex-wrap: wrap; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.pin-boxes input:focus-visible { outline: none; }

/* ---------- Points ---------- */
.top-right { display: flex; align-items: center; gap: 8px; }
.points-chip { display: inline-flex; align-items: center; gap: 6px; height: 38px; padding: 0 12px; border-radius: 10px; background: var(--accent-soft); color: var(--accent); font-weight: 700; font-size: .9rem; font-variant-numeric: tabular-nums; transition: transform .2s; }
.points-chip:hover { transform: translateY(-1px); }
.points-chip.bump { animation: bump .5s ease; }
.earned { display: inline-flex; align-items: center; gap: 6px; margin-top: 12px; margin-left: 6px; padding: 5px 12px; border-radius: 999px; background: var(--accent-soft); color: var(--accent); font-weight: 700; font-size: .85rem; }

/* ---------- Shop ---------- */
.balance { display: flex; align-items: center; gap: 8px; padding: 12px 18px; border-radius: 14px; background: var(--accent-soft); color: var(--accent); }
.balance b { font-size: 1.5rem; font-weight: 800; letter-spacing: -.02em; font-variant-numeric: tabular-nums; }
.balance span { font-size: .85rem; font-weight: 600; }
.earn-row { display: flex; flex-wrap: wrap; gap: 10px 20px; padding: 16px 20px; border-radius: 14px; background: var(--surface); border: 1px solid var(--border); font-weight: 700; font-size: .9rem; margin-bottom: 36px; }
.earn-row .badge { max-width: none; }
.earn-row > div { display: flex; align-items: center; gap: 8px; }
.shop-sec { display: flex; align-items: baseline; gap: 12px; margin: 8px 0 14px; }
.shop-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 14px; margin-bottom: 40px; }
.shop-card { display: flex; flex-direction: column; border-radius: 16px; background: var(--surface); border: 1px solid var(--border); overflow: hidden; transition: transform .2s, box-shadow .2s, border-color .2s; }
.shop-card:hover { transform: translateY(-3px); box-shadow: var(--shadow); }
.shop-card.equipped { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.shop-prev { height: 150px; display: grid; place-items: center; background: var(--surface-2); border-bottom: 1px solid var(--border); overflow: hidden; }
.shop-info { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding: 14px 16px; }
.font-prev { color: var(--accent); font-weight: 600; letter-spacing: .04em; white-space: nowrap; }
.frame-prev { width: 118px; }
.frame-prev:not([data-frame="classic"]) { padding: 8px; border-radius: 14px; }
.board.prev { grid-template-columns: repeat(3, minmax(0, 1fr)); grid-template-rows: repeat(3, minmax(0, 1fr)); border-radius: 6px; box-shadow: none; }
.board.prev .cell { font-size: 20cqi; cursor: default; }

/* ---------- Frames ---------- */
.board-frame.themed { transition: padding .3s, background .3s; }
.board-frame.themed:not([data-frame="classic"]):not(.frame-prev) { padding: 14px; border-radius: 24px; }
.board-frame.themed:not([data-frame="classic"]) .pause-overlay,
.board-frame.themed:not([data-frame="classic"]) .busy-overlay { border-radius: inherit; }

[data-frame="wood"] {
  background:
    repeating-linear-gradient(96deg, rgba(0,0,0,.10) 0 2px, transparent 2px 9px, rgba(255,255,255,.05) 9px 11px, transparent 11px 17px),
    linear-gradient(135deg, #6b3d1d, #9a5f33 40%, #7a4523 70%, #5a3116);
  box-shadow: inset 0 2px 2px rgba(255,255,255,.25), inset 0 -3px 6px rgba(0,0,0,.4), 0 16px 34px rgba(70,35,10,.35);
}
[data-frame="wood"] .board { border-color: #3d220e; }

[data-frame="gold"] {
  background: linear-gradient(135deg, #7d5e16, #f7e28e 22%, #b48a2c 45%, #fff3b0 62%, #a67c22 80%, #6e5212);
  box-shadow: inset 0 0 0 1.5px rgba(255,255,255,.45), inset 0 -3px 8px rgba(80,55,0,.35), 0 16px 34px rgba(120,90,20,.35);
}
[data-frame="gold"] .board { border-color: #6e5212; }

[data-frame="marble"] {
  background:
    linear-gradient(118deg, transparent 30%, rgba(120,120,130,.35) 31%, transparent 33%, transparent 62%, rgba(120,120,130,.25) 63.5%, transparent 65%),
    linear-gradient(40deg, transparent 45%, rgba(150,150,160,.3) 46%, transparent 48%),
    linear-gradient(135deg, #fbfbf9, #e4e4e0 40%, #f6f6f3 60%, #d9d9d4);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.7), inset 0 -3px 8px rgba(0,0,0,.12), 0 16px 34px rgba(0,0,0,.15);
}
[data-frame="marble"] .board { border-color: #5d5d66; }

[data-frame="neon"] {
  background: #0c0b18;
  box-shadow: 0 0 0 2px #ff3ec8, 0 0 24px rgba(255,62,200,.55), inset 0 0 22px rgba(34,225,255,.35);
}
[data-frame="neon"] .board { --line: #22e1ff; border-color: #22e1ff; box-shadow: 0 0 16px rgba(34,225,255,.55); }

[data-frame="ocean"] {
  background: linear-gradient(135deg, #0a3a8c, #1f8fff, #19d3f0, #1f8fff, #0a3a8c);
  background-size: 300% 300%;
  animation: tide 9s ease-in-out infinite;
  box-shadow: inset 0 2px 3px rgba(255,255,255,.3), 0 16px 34px rgba(10,58,140,.35);
}
[data-frame="ocean"] .board { border-color: #0a3a8c; }
@keyframes tide { 50% { background-position: 100% 100%; } }

@media (max-width: 520px) {
  .board-frame.themed:not([data-frame="classic"]):not(.frame-prev) { padding: 9px; border-radius: 18px; }
  .points-chip { height: 36px; padding: 0 10px; }
  .earn-row { padding: 14px; gap: 10px 14px; font-size: .82rem; }
  .balance { padding: 10px 14px; }
}

/* ---------- Account ---------- */
.acct-btn { height: 38px; padding: 0 14px; border-radius: 10px; font-weight: 600; font-size: .88rem; background: var(--text); color: var(--bg); transition: transform .2s; }
.acct-btn:hover { transform: translateY(-1px); }
.acct-btn.avatar { width: 38px; padding: 0; border-radius: 50%; background: var(--accent); color: var(--accent-ink); font-weight: 800; font-size: 1rem; display: inline-grid; place-items: center; }
.acct-btn.avatar.big { width: 48px; height: 48px; font-size: 1.25rem; flex: none; }
.acct-head { display: flex; align-items: center; gap: 14px; }
.acct-head h3 { margin: 0; }
.auth-form { display: flex; flex-direction: column; gap: 12px; text-align: left; }
.auth-intro { text-align: center; }
.auth-tabs { display: grid; grid-template-columns: 1fr 1fr; background: var(--surface-2); border: 1px solid var(--border); border-radius: 12px; padding: 4px; margin-bottom: 4px; }
.auth-tabs button { padding: 9px; border-radius: 8px; font-weight: 600; font-size: .9rem; color: var(--muted); }
.auth-tabs button.active { background: var(--surface); color: var(--text); box-shadow: 0 1px 3px rgba(0,0,0,.1); }
.field { display: flex; flex-direction: column; gap: 6px; font-size: .85rem; font-weight: 600; }
.form-msg { min-height: 1.2em; font-size: .86rem; color: var(--err); font-weight: 500; }
.form-msg.info { color: var(--muted); }
.form-msg.ok { color: var(--ok); }
.link.forgot { align-self: center; }
.center { text-align: center; }
#hist-auth { margin-top: 24px; }
.pw-box { margin-top: 18px; border: 1px solid var(--border); border-radius: 12px; padding: 12px 14px; }
.pw-box summary { cursor: pointer; font-weight: 600; font-size: .9rem; }
.pw-form { display: flex; flex-direction: column; gap: 10px; margin-top: 12px; }
.loading { display: grid; place-items: center; padding: 80px 0; }
.note { margin-top: 12px; }
.unlock { display: flex; align-items: center; justify-content: center; gap: 8px; margin-top: 14px; padding: 10px 14px; border-radius: 12px; background: color-mix(in srgb, #ff3ec8 14%, transparent); color: #c0268f; font-size: .9rem; }
button.balance { cursor: pointer; }

/* ---------- Symbol "fonts" ---------- */
.gt { white-space: nowrap; letter-spacing: -.02em; }
.g-svg { display: block; height: auto; overflow: visible; }
.g-dom { display: grid; grid-template-columns: repeat(3, 1fr); grid-template-rows: repeat(3, 1fr); gap: .1em; width: .78em; height: .78em; }
.g-dom i { border-radius: 50%; }
.g-dom i.on { background: currentColor; }
.g-br { display: grid; grid-template-columns: repeat(2, 1fr); gap: .1em .14em; width: .4em; }
.g-br i { aspect-ratio: 1; border-radius: 50%; background: currentColor; opacity: .14; }
.g-br i.on { opacity: 1; }
.kn { position: absolute; top: 4px; left: 7px; font-size: .62rem; font-weight: 700; color: var(--muted); display: none; }
.key.symbolic .kn { display: block; }
.font-prev { display: flex; align-items: center; gap: .35em; }
.font-prev > span { display: flex; align-items: center; }

/* ---------- Shop extras ---------- */
.shop-prev { position: relative; }
.goal-tag { position: absolute; top: 10px; left: 10px; display: inline-flex; align-items: center; gap: 5px; padding: 3px 9px; border-radius: 999px; font-size: .7rem; font-weight: 700; background: var(--surface); border: 1px solid var(--border); color: var(--muted); }
.lock-tag { display: inline-flex; align-items: center; gap: 5px; font-size: .8rem; font-weight: 600; color: var(--muted); white-space: nowrap; }
.shop-card.locked .shop-prev > .board-frame { filter: grayscale(.6); opacity: .7; }
.shop-text { min-width: 0; }
.shop-note { margin-top: 6px; display: flex; flex-direction: column; gap: 4px; }
.progress { height: 6px; border-radius: 99px; background: var(--peer); overflow: hidden; width: 140px; max-width: 100%; }
.progress i { display: block; height: 100%; background: var(--accent); border-radius: inherit; }

.color-card { display: flex; gap: 28px; align-items: center; padding: 24px; border-radius: 16px; background: var(--surface); border: 1px solid var(--border); margin-bottom: 40px; }
.color-prev { width: 150px; flex: none; }
.color-prev .board.prev .cell { font-size: calc(20cqi * var(--font-scale, 1)); }
.color-controls { flex: 1; display: flex; flex-direction: column; gap: 14px; min-width: 0; }
.color-row { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.color-pick { display: flex; align-items: center; gap: 14px; cursor: pointer; }
.color-pick span { display: flex; flex-direction: column; }
.color-pick em { font-style: normal; }
.color-pick input { width: 46px; height: 46px; border: 1px solid var(--border); border-radius: 12px; padding: 3px; background: var(--surface-2); cursor: pointer; flex: none; }
.color-pick input::-webkit-color-swatch-wrapper { padding: 0; }
.color-pick input::-webkit-color-swatch { border: 0; border-radius: 9px; }
.color-pick input::-moz-color-swatch { border: 0; border-radius: 9px; }
.swatches { display: flex; flex-wrap: wrap; gap: 8px; }
.swatch { width: 28px; height: 28px; border-radius: 50%; border: 2px solid var(--surface); box-shadow: 0 0 0 1px var(--border); transition: transform .15s; }
.swatch:hover { transform: scale(1.12); }
.swatch.on { box-shadow: 0 0 0 2px var(--accent); }

/* ---------- New frames ---------- */
[data-frame="silver"] {
  background: linear-gradient(135deg, #7f8a95, #f3f6f9 22%, #a7b1bb 44%, #ffffff 60%, #8e99a5 80%, #6a7480);
  box-shadow: inset 0 0 0 1.5px rgba(255,255,255,.55), inset 0 -3px 8px rgba(40,50,60,.3), 0 16px 34px rgba(60,70,80,.3);
}
[data-frame="silver"] .board { border-color: #4f5a65; }

[data-frame="platinum"] {
  background: linear-gradient(110deg, #b9c5d1 0%, #f7faff 16%, #aab7c5 32%, #eef3f9 46%, #9fadbd 60%, #ffffff 76%, #b3bfcc 100%);
  background-size: 250% 100%;
  animation: sheen 7s linear infinite;
  box-shadow: inset 0 0 0 2px rgba(255,255,255,.85), inset 0 0 0 4px rgba(110,125,145,.45), inset 0 -4px 10px rgba(40,55,75,.25), 0 18px 40px rgba(60,80,110,.35);
}
[data-frame="platinum"] .board { border-color: #56657a; }
@keyframes sheen { to { background-position: -250% 0; } }

@media (max-width: 620px) {
  .color-card { flex-direction: column; align-items: stretch; padding: 18px; gap: 18px; }
  .color-prev { align-self: center; }
}
@media (max-width: 520px) {
  .acct-btn { height: 36px; padding: 0 12px; }
  .acct-btn.avatar { width: 36px; }
}

[hidden] { display: none !important; }

/* ---------- Promo codes ---------- */
.promo { display: flex; flex-direction: column; gap: 10px; padding: 18px 20px; border-radius: 14px; background: var(--surface); border: 1px solid var(--border); margin: -20px 0 36px; }
.promo-label { display: flex; align-items: center; gap: 8px; color: var(--accent); }
.promo-label b { color: var(--text); }
.promo-row { display: flex; gap: 10px; }
.promo-row .text-in { flex: 1; min-width: 0; }
.promo .form-msg:empty { display: none; }
dialog .promo { margin: 18px 0 0; padding: 14px; background: var(--surface-2); }