:root {
  --bg: #ffffff; --fg: #1a1a1b; --muted: #6b7280; --border: #d3d6da; --border-filled: #878a8c;
  --key-bg: #d3d6da; --key-fg: #1a1a1b; --modal-bg: #ffffff;
  --correct: #6aaa64; --present: #c9b458; --absent: #787c7e; --accent: #0f766e;
  --tile: min(3.6rem, calc((100vw - 3rem) / 5));
}
:root[data-theme="dark"] {
  --bg: #121213; --fg: #f8f8f8; --muted: #9ca3af; --border: #3a3a3c; --border-filled: #565758;
  --key-bg: #818384; --key-fg: #f8f8f8; --modal-bg: #1d1d1f;
  --absent: #3a3a3c; --correct: #538d4e; --present: #b59f3b;
}
@media (prefers-color-scheme: dark) {
  :root[data-theme="system"] {
    --bg: #121213; --fg: #f8f8f8; --muted: #9ca3af; --border: #3a3a3c; --border-filled: #565758;
    --key-bg: #818384; --key-fg: #f8f8f8; --modal-bg: #1d1d1f;
    --absent: #3a3a3c; --correct: #538d4e; --present: #b59f3b;
  }
}
:root.colorblind { --correct: #f5793a; --present: #85c0f9; }

* { box-sizing: border-box; }
html, body { margin: 0; background: var(--bg); color: var(--fg); font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
body { min-height: 100dvh; display: flex; flex-direction: column; }
a { color: var(--accent); }
button { font: inherit; }

.topbar { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; padding: .4rem .75rem; border-bottom: 1px solid var(--border); }
.topbar-side { display: flex; gap: .35rem; }
.topbar-side.right { justify-content: flex-end; }
.brand { font-weight: 800; font-size: 1.6rem; letter-spacing: .05em; color: var(--fg); text-decoration: none; font-family: Georgia, "Times New Roman", serif; }
.icon-btn { background: none; border: 0; color: var(--fg); border-radius: 8px; padding: .35rem .5rem; font-size: 1.15rem; font-weight: 700; cursor: pointer; line-height: 1; display: inline-grid; place-items: center; min-width: 2.2rem; min-height: 2.2rem; }
.icon-btn:hover, .icon-btn:focus-visible { background: color-mix(in srgb, var(--fg) 10%, transparent); }

main { flex: 1; width: 100%; max-width: 500px; margin: 0 auto; padding: .5rem .5rem 0; display: flex; flex-direction: column; }
.hero { text-align: center; padding: 2rem 0; }
.prose { line-height: 1.6; padding: 0 .5rem; }
.muted { color: var(--muted); }
.soon { margin-top: 2rem; padding: .8rem; border: 1px dashed var(--border); border-radius: 10px; }

/* ---------- game ---------- */
.game { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: space-between; gap: .5rem; }
.puzzle-meta { margin: .2rem 0 0; font-size: .8rem; color: var(--muted); }
.puzzle-meta #hard-badge { color: var(--accent); font-weight: 700; }
.board { display: grid; grid-template-rows: repeat(6, var(--tile)); gap: 5px; padding: .5rem 0; }
.row { display: grid; grid-template-columns: repeat(5, var(--tile)); gap: 5px; }
.tile { width: var(--tile); height: var(--tile); border: 2px solid var(--border); display: inline-grid; place-items: center;
  font-weight: 800; font-size: calc(var(--tile) * .55); text-transform: uppercase; color: var(--fg); user-select: none; line-height: 1; }
.tile.filled { border-color: var(--border-filled); }
.tile.correct, .tile.present, .tile.absent { color: #fff; border-color: transparent; }
.tile.correct { background: var(--correct); }
.tile.present { background: var(--present); }
.tile.absent { background: var(--absent); }
.tile.sm { --tile: 2.2rem; font-size: 1.2rem; }

.tile.pop { animation: pop 100ms ease-out; }
.tile.flip-in { animation: flipIn 160ms ease-in forwards; }
.tile.flip-out { animation: flipOut 160ms ease-out forwards; }
.tile.bounce { animation: bounce 900ms ease; }
.row.shake { animation: shake 500ms; }
@keyframes pop { 0% { transform: scale(.85); } 40% { transform: scale(1.1); } }
@keyframes flipIn { from { transform: rotateX(0); } to { transform: rotateX(-90deg); } }
@keyframes flipOut { from { transform: rotateX(-90deg); } to { transform: rotateX(0); } }
@keyframes shake { 10%, 90% { transform: translateX(-2px); } 20%, 80% { transform: translateX(4px); } 30%, 50%, 70% { transform: translateX(-6px); } 40%, 60% { transform: translateX(6px); } }
@keyframes bounce { 0%, 20% { transform: translateY(0); } 40% { transform: translateY(-30px); } 50% { transform: translateY(5px); } 60% { transform: translateY(-15px); } 80% { transform: translateY(2px); } 100% { transform: translateY(0); } }
@media (prefers-reduced-motion: reduce) { .tile, .row { animation-duration: 1ms !important; } }

.keyboard { width: 100%; padding: 0 .25rem calc(.5rem + env(safe-area-inset-bottom)); user-select: none; }
.kb-row { display: flex; gap: 6px; margin: 0 auto 8px; touch-action: manipulation; }
.kb-row:nth-child(2) { padding: 0 5%; }
.key { flex: 1; height: 3.5rem; border: 0; border-radius: 4px; background: var(--key-bg); color: var(--key-fg);
  font-weight: 700; font-size: 1.1rem; text-transform: uppercase; cursor: pointer; padding: 0; -webkit-tap-highlight-color: transparent; }
.key.wide { flex: 1.5; font-size: .8rem; }
.key.correct, .key.present, .key.absent { color: #fff; }
.key.correct { background: var(--correct); }
.key.present { background: var(--present); }
.key.absent { background: var(--absent); }
.key:active { filter: brightness(.9); }

/* ---------- toasts ---------- */
.toasts { position: fixed; top: 4.2rem; left: 50%; transform: translateX(-50%); display: flex; flex-direction: column; gap: .4rem; z-index: 60; pointer-events: none; align-items: center; }
.toast { background: var(--fg); color: var(--bg); padding: .75rem 1rem; border-radius: 6px; font-weight: 700; font-size: .95rem; transition: opacity .35s; }
.toast.fade { opacity: 0; }

/* ---------- modals ---------- */
.modal { border: 0; border-radius: 10px; padding: 1.25rem 1.25rem 1.5rem; width: min(92vw, 460px); background: var(--modal-bg); color: var(--fg); box-shadow: 0 8px 30px rgba(0,0,0,.35); }
.modal::backdrop { background: rgba(0,0,0,.5); }
.modal h2 { margin: 0 0 .75rem; text-align: center; font-size: 1.1rem; text-transform: uppercase; letter-spacing: .05em; }
.modal h3 { font-size: .85rem; text-transform: uppercase; letter-spacing: .05em; text-align: center; margin: 1rem 0 .5rem; }
.modal-close { position: absolute; top: .4rem; right: .6rem; background: none; border: 0; color: var(--fg); font-size: 1.6rem; cursor: pointer; }
.example { display: flex; gap: 4px; margin-top: .6rem; }
.setting { display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding: .8rem 0; border-bottom: 1px solid var(--border); cursor: pointer; }
.setting small { display: block; color: var(--muted); font-size: .78rem; margin-top: .15rem; }
.setting select { background: var(--bg); color: var(--fg); border: 1px solid var(--border); border-radius: 6px; padding: .3rem; }
.switch { appearance: none; width: 2.6rem; height: 1.5rem; border-radius: 999px; background: var(--absent); position: relative; cursor: pointer; flex: none; transition: background .2s; }
.switch::after { content: ""; position: absolute; top: 3px; left: 3px; width: 1.1rem; height: 1.1rem; border-radius: 50%; background: #fff; transition: transform .2s; }
.switch:checked { background: var(--correct); }
.switch:checked::after { transform: translateX(1.1rem); }
.result-line { text-align: center; font-weight: 700; margin: 0 0 .5rem; }
.stat-row { display: grid; grid-template-columns: repeat(4, 1fr); text-align: center; }
.stat-row strong { display: block; font-size: 1.8rem; }
.stat-row span { font-size: .72rem; }
.dist-row { display: flex; align-items: center; gap: .4rem; margin: 4px 0; font-size: .85rem; }
.dist-row span { width: .8rem; }
.bar { background: var(--absent); color: #fff; font-weight: 700; text-align: right; padding: 2px 6px; min-width: 1.5rem; }
.bar.current { background: var(--correct); }
.stats-footer { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin-top: 1.2rem; border-top: 1px solid var(--border); padding-top: 1rem; }
.stats-footer .next span { display: block; font-size: .75rem; text-transform: uppercase; }
.stats-footer .next strong { font-size: 1.6rem; font-variant-numeric: tabular-nums; }
.share-btn { background: var(--correct); color: #fff; border: 0; border-radius: 999px; padding: .75rem 1.5rem; font-weight: 800; font-size: 1rem; cursor: pointer; }

.foot { text-align: center; font-size: .72rem; color: var(--muted); padding: .5rem 1rem 1rem; }
.cookie { position: fixed; left: 1rem; right: 1rem; top: 3.8rem; max-width: 480px; margin: 0 auto; background: var(--fg); color: var(--bg); padding: .8rem 1rem; border-radius: 10px; font-size: .85rem; display: flex; gap: .8rem; align-items: center; justify-content: space-between; z-index: 40; }
.cookie[hidden] { display: none; }
.cookie button { background: var(--accent); color: #fff; border: 0; border-radius: 6px; padding: .35rem .8rem; cursor: pointer; }
@media (max-height: 640px) { .key { height: 3rem; } :root { --tile: min(3rem, calc((100vw - 3rem) / 5)); } }

/* ---------- accounts ---------- */
.avatar-6aaa64 { background: #6aaa64; }
.avatar-c9b458 { background: #c9b458; }
.avatar-0f766e { background: #0f766e; }
.avatar-2563eb { background: #2563eb; }
.avatar-7c3aed { background: #7c3aed; }
.avatar-db2777 { background: #db2777; }
.avatar-dc2626 { background: #dc2626; }
.avatar-ea580c { background: #ea580c; }
.avatar-475569 { background: #475569; }
.avatar-0891b2 { background: #0891b2; }

.avatar { display: inline-grid; place-items: center; width: 4rem; height: 4rem; border-radius: 50%; font-size: 2rem; line-height: 1; }
.avatar.sm { width: 2rem; height: 2rem; font-size: 1.05rem; }
.avatar-btn { display: inline-grid; place-items: center; text-decoration: none; margin-left: .2rem; }
.login-link { align-self: center; font-weight: 700; font-size: .85rem; text-decoration: none; padding: .35rem .6rem; border: 1px solid var(--border); border-radius: 999px; color: var(--fg); margin-left: .2rem; white-space: nowrap; }
.flash { background: color-mix(in srgb, var(--correct) 20%, var(--bg)); border: 1px solid var(--correct); border-radius: 8px; padding: .6rem .8rem; margin: .5rem 0; font-size: .9rem; text-align: center; }
.card { width: 100%; max-width: 420px; margin: 1.2rem auto; padding: 1.4rem; border: 1px solid var(--border); border-radius: 12px; }
.card h1 { margin: 0 0 1rem; font-size: 1.5rem; text-align: center; }
.card h2 { font-size: 1.1rem; margin: 1.6rem 0 .6rem; }
.form label { display: block; font-weight: 600; font-size: .88rem; margin: .8rem 0 .3rem; }
.form input[type=text], .form input[type=email], .form input[type=password] { width: 100%; padding: .7rem .8rem; font-size: 1rem; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--fg); }
.form input:focus { outline: 2px solid var(--accent); outline-offset: 1px; }
.form .hint { font-size: .78rem; color: var(--muted); margin: .25rem 0 0; }
.btn { display: inline-block; width: 100%; margin-top: 1.1rem; padding: .8rem 1rem; border: 0; border-radius: 999px; background: var(--correct); color: #fff; font-weight: 800; font-size: 1rem; cursor: pointer; text-align: center; text-decoration: none; }
.btn.secondary { background: transparent; color: var(--fg); border: 1px solid var(--border); }
.form-error { background: color-mix(in srgb, #dc2626 15%, var(--bg)); border: 1px solid #dc2626; border-radius: 8px; padding: .6rem .8rem; font-size: .9rem; margin: 0 0 .5rem; }
.form-note { font-size: .88rem; color: var(--muted); text-align: center; margin-top: 1rem; }
.picker { display: flex; flex-wrap: wrap; gap: .4rem; border: 0; padding: 0; margin: 0; }
.picker label { margin: 0; font-weight: 400; cursor: pointer; }
.picker input { position: absolute; opacity: 0; pointer-events: none; }
.picker .swatch { display: inline-grid; place-items: center; width: 2.3rem; height: 2.3rem; border-radius: 50%; border: 3px solid transparent; font-size: 1.25rem; }
.picker .emoji-opt { background: color-mix(in srgb, var(--fg) 8%, transparent); }
.picker input:checked + .swatch { border-color: var(--fg); }
.picker input:focus-visible + .swatch { outline: 2px solid var(--accent); }
.profile-head { display: flex; align-items: center; gap: 1rem; margin-bottom: .5rem; }
.profile-head .who b { display: block; font-size: 1.2rem; }
.profile-head .who span { color: var(--muted); font-size: .88rem; }
.inline-form { margin: 0; }

/* ---------- stats / leaderboard ---------- */
.page { width: 100%; padding: .5rem .25rem 1.5rem; }
.page h1 { font-size: 1.5rem; margin: .6rem 0 .8rem; text-align: center; }
.page h2 { font-size: 1.1rem; margin: 1.6rem 0 .6rem; }
.page h3 { font-size: .85rem; text-transform: uppercase; letter-spacing: .05em; margin: 1.2rem 0 .4rem; }
.page h4 { font-size: .8rem; text-transform: uppercase; letter-spacing: .04em; margin: 0 0 .4rem; color: var(--muted); }
.muted-flash { border-color: var(--border); background: transparent; }
.stat-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: .5rem; text-align: center; }
.stat-grid > div { border: 1px solid var(--border); border-radius: 10px; padding: .6rem .2rem; }
.stat-grid strong { display: block; font-size: 1.5rem; font-variant-numeric: tabular-nums; }
.stat-grid span { font-size: .72rem; color: var(--muted); }
.chart { width: 100%; height: auto; display: block; }
.chart .axis { fill: var(--fg); font-size: 13px; font-weight: 700; }
.chart .axis.small { font-size: 8px; fill: var(--muted); }
.chart .bar-rect { fill: var(--absent); }
.chart .bar-rect.top { fill: var(--correct); }
.chart .bar-label { fill: #fff; font-size: 12px; font-weight: 700; }
.heatmap-wrap { overflow-x: auto; }
.heatmap { min-width: 340px; }
.hm.none { fill: color-mix(in srgb, var(--fg) 8%, transparent); }
.hm.future { fill: transparent; }
.hm.lost { fill: #dc2626; opacity: .75; }
.hm.won { fill: var(--correct); }
.hm.won.g6 { opacity: .4; } .hm.won.g5 { opacity: .5; } .hm.won.g4 { opacity: .62; } .hm.won.g3 { opacity: .75; } .hm.won.g2 { opacity: .88; } .hm.won.g1 { opacity: 1; }
.legend { font-size: .72rem; display: flex; flex-wrap: wrap; align-items: center; gap: .25rem; }
.lg { display: inline-block; width: .7rem; height: .7rem; border-radius: 2px; }
.lg.none { background: color-mix(in srgb, var(--fg) 8%, transparent); }
.lg.won { background: var(--correct); } .lg.won.g5 { opacity: .5; } .lg.won.g3 { opacity: .75; }
.lg.lost { background: #dc2626; opacity: .75; }
.fun-grid { display: grid; grid-template-columns: 1fr; gap: .6rem; margin-top: 1rem; }
@media (min-width: 460px) { .fun-grid { grid-template-columns: 1fr 1fr; } }
.fun { border: 1px solid var(--border); border-radius: 10px; padding: .7rem .8rem; }
.fun p { margin: .2rem 0 .5rem; }
.words { margin: 0; padding-left: 1.2rem; font-size: .9rem; }
.mono { font-family: ui-monospace, Menlo, Consolas, monospace; letter-spacing: .08em; }
.letters { display: flex; gap: 4px; }
.mini-row { display: flex; gap: 3px; margin-bottom: 3px; }
.tile.xs { --tile: 1.5rem; font-size: .8rem; border-width: 1px; }
.badges { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: .5rem; }
.badge { border: 1px solid var(--border); border-radius: 10px; padding: .6rem; display: grid; grid-template-columns: auto 1fr; column-gap: .5rem; align-items: center; }
.badge .b-emoji { grid-row: span 2; font-size: 1.6rem; }
.badge .b-name { font-weight: 700; font-size: .85rem; }
.badge .b-desc { font-size: .7rem; color: var(--muted); }
.badge.locked { opacity: .45; }
.tabs { display: flex; gap: .3rem; overflow-x: auto; margin: .4rem 0; padding-bottom: 2px; }
.tab { flex: none; padding: .4rem .75rem; border: 1px solid var(--border); border-radius: 999px; text-decoration: none; color: var(--fg); font-size: .85rem; font-weight: 600; }
.tabs.small .tab { font-size: .78rem; padding: .3rem .6rem; }
.tab.active { background: var(--correct); border-color: var(--correct); color: #fff; }
.board { list-style: none; padding: 0; margin: .8rem 0; }
.board li { display: grid; grid-template-columns: 2rem auto 1fr auto; align-items: center; gap: .55rem; padding: .55rem .4rem; border-bottom: 1px solid var(--border); }
.board li.me { background: color-mix(in srgb, var(--correct) 14%, transparent); border-radius: 8px; }
.board .rank { font-weight: 800; text-align: center; font-variant-numeric: tabular-nums; }
.board .who { text-decoration: none; color: var(--fg); min-width: 0; }
.board .who b, .board .who small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.board .who small, .board .score small { color: var(--muted); font-size: .72rem; }
.board .score { text-align: right; }
.board .score b { display: block; font-size: 1.1rem; font-variant-numeric: tabular-nums; }
.empty { text-align: center; padding: 2rem 0; }
.find { display: flex; gap: .4rem; margin-top: 1rem; }
.find input { flex: 1; padding: .55rem .7rem; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--fg); font-size: .95rem; }
.btn.small { width: auto; margin-top: 0; padding: .5rem 1rem; font-size: .9rem; }
.people { list-style: none; padding: 0; display: flex; flex-wrap: wrap; gap: .6rem; }
.people a { display: inline-flex; align-items: center; gap: .35rem; text-decoration: none; color: var(--fg); }
a.icon-btn { text-decoration: none; }

/* ---------- passkeys ---------- */
.passkey-box { margin: 0 0 1rem; }
.passkey-btn { width: 100%; display: inline-flex; align-items: center; justify-content: center; gap: .5rem; }
.divider { display: flex; align-items: center; gap: .75rem; color: var(--muted, #888); font-size: .85rem; margin: 1rem 0 .25rem; }
.divider::before, .divider::after { content: ""; flex: 1; border-top: 1px solid var(--border, #ccc); }
.passkey-list { list-style: none; padding: 0; margin: .5rem 0 1rem; display: grid; gap: .5rem; }
.passkey-list li { display: flex; flex-wrap: wrap; align-items: center; gap: .25rem .75rem; padding: .5rem .75rem; border: 1px solid var(--border, #ccc); border-radius: 8px; }
.passkey-list .pk-name { font-weight: 600; }
.passkey-list .pk-meta { color: var(--muted, #888); font-size: .85rem; flex: 1; }
.btn.small { padding: .25rem .6rem; font-size: .85rem; }
[hidden] { display: none !important; }

/* ---------- archive ---------- */
.archive-meta a { color: inherit; }
.archive-summary { margin: .4rem 0 .8rem; }
.archive-list { list-style: none; padding: 0; margin: 0; display: grid; gap: .4rem; }
.arch a { display: grid; grid-template-columns: 3.5rem 1fr auto; align-items: center; gap: .6rem; padding: .6rem .8rem;
  border: 1px solid var(--border); border-radius: 10px; color: var(--fg); text-decoration: none; }
.arch a:hover, .arch a:focus-visible { border-color: var(--border-filled); }
.arch-num { font-weight: 800; }
.arch-status { display: flex; flex-direction: column; align-items: flex-end; gap: .1rem; }
.arch-status small { color: var(--muted); font-size: .72rem; }
.chip { display: inline-block; padding: .15rem .55rem; border-radius: 999px; font-size: .78rem; font-weight: 700; border: 1px solid var(--border); }
.chip.won { background: var(--correct); border-color: var(--correct); color: #fff; }
.chip.lost { background: var(--absent); border-color: var(--absent); color: #fff; }
.chip.play { border-color: var(--correct); color: var(--correct); }

/* ---------- admin ---------- */
.admin h2 { font-size: 1.05rem; margin: 1.2rem 0 .4rem; }
.admin-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: .4rem; margin: .4rem 0 .8rem; }
.admin-stats div { border: 1px solid var(--border); border-radius: 10px; padding: .5rem; text-align: center; }
.admin-stats b { display: block; font-size: 1.3rem; }
.admin-stats span { font-size: .72rem; color: var(--muted); }
.admin-search, .admin-override { display: flex; flex-wrap: wrap; gap: .4rem; align-items: flex-end; margin: .6rem 0; }
.admin-search input[type=search] { flex: 1; min-width: 12rem; }
.admin-search input, .admin-search select, .admin-override input { padding: .45rem .6rem; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); color: var(--fg); font: inherit; }
.admin-override label { display: flex; flex-direction: column; font-size: .8rem; gap: .2rem; }
.admin-search .btn, .admin-override .btn, .admin-table .btn { width: auto; margin-top: 0; }
.small-note { font-size: .8rem; margin: .3rem 0; }
.table-wrap { overflow-x: auto; }
.admin-table { width: 100%; border-collapse: collapse; font-size: .85rem; }
.admin-table th, .admin-table td { text-align: left; padding: .45rem .4rem; border-bottom: 1px solid var(--border); vertical-align: top; }
.admin-table tr.banned td { opacity: .65; }
.admin-table tr.today td { background: color-mix(in srgb, var(--present) 15%, var(--bg)); }
.admin-table .actions { display: flex; flex-wrap: wrap; gap: .3rem; align-items: flex-start; }
.admin-table .chip { margin-left: .25rem; }
.danger summary { cursor: pointer; font-size: .8rem; color: #dc2626; padding: .25rem 0; }
.danger form { display: flex; gap: .3rem; margin-top: .3rem; }
.danger input { width: 8rem; padding: .3rem .4rem; border: 1px solid var(--border); border-radius: 6px; background: var(--bg); color: var(--fg); }
.btn.danger { background: #dc2626; color: #fff; }
.spoiler summary { cursor: pointer; font-weight: 700; padding: .4rem 0; }
.pager { display: flex; justify-content: space-between; }
.outbox { list-style: none; padding: 0; display: grid; gap: .5rem; }
.outbox li { border: 1px solid var(--border); border-radius: 10px; padding: .5rem .8rem; }
.outbox p { margin: 0 0 .3rem; }
.outbox pre { white-space: pre-wrap; word-break: break-all; font-size: .8rem; background: color-mix(in srgb, var(--fg) 6%, var(--bg)); padding: .5rem; border-radius: 6px; }
.cookie a { color: inherit; text-decoration: underline; }