:root{font-family:Arial,Helvetica,sans-serif;color:var(--navy);background:var(--linen)}*{box-sizing:border-box}body{margin:0}:is(button,a.ue-tab),select{font:inherit}:is(button,a.ue-tab){cursor:pointer}header{border-bottom:1px solid var(--border);padding:22px 5%;display:flex;justify-content:space-between;align-items:center}.brand{font-size:14px;font-weight:700;letter-spacing:2px}.flag{display:inline-block;width:22px;height:15px;background:linear-gradient(var(--blue) 50%,var(--yellow) 50%);margin-right:12px;vertical-align:middle}.edition{font-size:11px;letter-spacing:2px;color:var(--muted)}main{max-width:1440px;margin:auto;padding:45px 5% 28px}.eyebrow{font-size:11px;letter-spacing:3px;font-weight:700;color:var(--muted)}h1{font-family:Georgia,serif;font-size:clamp(38px,5vw,65px);font-weight:400;letter-spacing:-2px;margin:14px 0}h1 em{color:var(--blue);font-weight:400}.intro{color:var(--muted);font-size:16px;line-height:1.6;max-width:620px}.toolbar{display:flex;justify-content:space-between;gap:15px;align-items:center;flex-wrap:wrap;margin:30px 0 20px}.filters{display:flex;gap:6px;flex-wrap:wrap}.filter,.control{border:1px solid var(--border);border-radius:30px;background:transparent;padding:10px 15px;color:var(--navy);font-size:12px}.filter.active{background:var(--navy);color:white;border-color:var(--navy)}.controls{display:flex;align-items:center;gap:12px;font-size:12px}.layout{display:grid;grid-template-columns:minmax(0,1fr) 270px;gap:24px;align-items:start}.grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:9px}.tile{--color:var(--sky);--edge:var(--border);background:var(--color);border:1px solid var(--edge);border-radius:5px;padding:11px 12px 10px;text-align:left;color:var(--navy);position:relative;min-height:117px;transition:transform .15s,box-shadow .15s}.tile.vowel{--color:var(--wheat);--edge:var(--border)}.tile.sign{--color:var(--sky);--edge:var(--border)}.tile:hover{transform:translateY(-3px);box-shadow:0 6px 14px #153c4312}.tile.selected{outline:2px solid var(--navy);outline-offset:2px}.tile:focus-visible,:is(button,a.ue-tab):focus-visible{outline:3px solid var(--blue);outline-offset:3px}.tile .num{font-size:10px;opacity:.6}.tile .speaker{float:right;font-size:12px;opacity:.65}.glyph{display:block;font-size:38px;line-height:1.3;font-weight:500}.glyph small{font-size:25px;opacity:.65;margin-left:6px}.equiv{font-size:12px;display:block;margin-top:2px}.panel{background:var(--navy);color:var(--linen);border-radius:9px;padding:24px;position:sticky;top:20px;min-height:420px}.panel .eyebrow{color:var(--sky)}.big{font-family:Georgia,serif;font-size:96px;line-height:1.2;margin:20px 0 5px}.big small{font-size:62px;color:var(--sky)}.name{font-size:18px;margin:0 0 23px;color:var(--wheat)}.panel hr{border:0;border-top:1px solid #ffffff25;margin:22px 0}.label{font-size:10px;letter-spacing:2px;color:var(--sky)}.hint{font-size:15px;line-height:1.6}.listen{width:100%;border:0;border-radius:5px;background:var(--yellow);color:var(--navy);padding:13px;font-weight:bold}.status{min-height:34px;font-size:12px;line-height:1.5;color:var(--sky);margin-top:12px}.under{display:flex;justify-content:space-between;align-items:center;margin:20px 0;font-size:11px;color:var(--muted)}.legend{display:flex;gap:14px}.dot{display:inline-block;border-radius:50%;width:7px;height:7px;background:var(--blue);margin-right:5px}.dot.gold{background:var(--yellow)}.dot.purple{background:var(--blue)}.note{border-top:1px solid var(--border);padding:22px 0;display:grid;grid-template-columns:1fr 1fr;gap:35px;font-size:12px;line-height:1.7;color:var(--muted)}.note strong{color:var(--navy)}footer{font-size:11px;color:var(--muted);padding:10px 0}a{color:inherit}#progress{font-variant-numeric:tabular-nums}.stop{display:none}@media(min-width:1300px){.grid{grid-template-columns:repeat(8,minmax(0,1fr))}}@media(max-width:900px){.layout{grid-template-columns:1fr 235px}.grid{grid-template-columns:repeat(4,minmax(0,1fr))}.tile{padding:10px;min-height:110px}}@media(max-width:650px){header{padding:18px 5%}.edition{display:none}main{padding-top:28px}h1{letter-spacing:-1px}.layout{display:flex;flex-direction:column-reverse;gap:20px}.panel{position:static;width:100%;min-height:0;padding:18px;display:grid;grid-template-columns:95px 1fr;gap:0 17px}.panel .eyebrow{grid-column:1/-1}.big{grid-column:1;grid-row:2/5;font-size:62px;margin:12px 0}.big small{font-size:36px}.name{margin:12px 0 7px;font-size:15px}.panel hr,.panel .label{display:none}.hint{margin:0 0 12px;font-size:13px}.listen{padding:10px}.status{grid-column:1/-1;min-height:0;margin-top:9px}.grid{width:100%;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px}.glyph{font-size:32px}.glyph small{font-size:21px;margin-left:3px}.tile{min-height:105px}.toolbar{margin-top:23px}.controls{width:100%;justify-content:space-between}.note{grid-template-columns:1fr;gap:10px}.legend{gap:8px}.under{align-items:start;gap:10px;line-height:1.7}}
.translation{font-size:.75em;white-space:nowrap;font-weight:normal}
.page-nav{display:flex;gap:8px}.page-nav a{font-size:12px;text-decoration:none;padding:9px 13px;border-radius:20px;border:1px solid var(--border)}.page-nav a[aria-current]{background:var(--navy);color:white;border-color:var(--navy)}.number-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px}.number-tile{background:var(--sky);border:1px solid var(--border);border-radius:6px;padding:15px;text-align:left;color:var(--navy);min-height:155px;transition:transform .15s}.number-tile:nth-child(n+11){background:var(--wheat);border-color:var(--border)}.number-tile:hover{transform:translateY(-2px)}.number-tile[aria-pressed=true]{outline:2px solid var(--navy);outline-offset:2px}.number-tile .digit{font-size:48px;display:block;line-height:1.2;margin:6px 0}.number-tile .word{display:block;font-size:18px;margin:8px 0 5px;overflow-wrap:anywhere}.number-tile .guide{font-size:11px;color:var(--muted);display:block;overflow-wrap:anywhere;line-height:1.4}.number-tile .english{font-size:10px;letter-spacing:1px;text-transform:uppercase;color:var(--muted)}.number-tile .sound{float:right;font-size:12px;opacity:.7}.count-player{display:flex;gap:22px;align-items:center;background:var(--navy);color:var(--linen);padding:18px 24px;border-radius:8px;margin:25px 0}.count-player .chosen-digit{font-size:45px;color:var(--yellow);min-width:65px}.count-player .chosen-word{font-size:24px;margin-bottom:5px}.count-player .chosen-guide{font-size:13px;color:var(--sky)}.count-player .listen{width:auto;margin-left:auto;white-space:nowrap}.count-status{font-size:12px;line-height:1.5;min-height:18px;margin-top:7px;color:var(--sky)}h2{font-family:Georgia,serif;font-weight:400;font-size:29px;margin:0}.section-title{display:flex;justify-content:space-between;align-items:center;gap:20px;margin:24px 0 16px}.tens-section{margin-top:38px;padding-top:28px;border-top:1px solid var(--border)}.tens-grid{display:grid;grid-template-columns:repeat(9,minmax(0,1fr));gap:8px}.tens-grid .number-tile{min-height:105px;padding:10px;background:var(--sky);border-color:var(--border)}.tens-grid .digit{font-size:27px;margin:4px 0}.tens-grid .word{font-size:12px;margin:5px 0}.tens-grid .guide{font-size:9px}.tens-grid .english{font-size:9px;letter-spacing:0}.tens-grid .sound{font-size:9px}.count-intro{margin-bottom:0}.count-tools{display:flex;align-items:center;gap:12px}.section-caption{font-size:12px;color:var(--muted);margin:8px 0 0}@media(max-width:1000px){.number-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.tens-grid{grid-template-columns:repeat(5,minmax(0,1fr))}}@media(max-width:650px){.brand{font-size:10px;letter-spacing:1px}.flag{margin-right:6px;width:17px;height:12px}.page-nav{gap:4px}.page-nav a{font-size:11px;padding:8px 9px}.number-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.number-tile{min-height:145px;padding:14px}.number-tile .digit{font-size:43px}.number-tile .word{font-size:18px}.number-tile .guide{font-size:11px}.tens-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.count-player{padding:16px;gap:13px;flex-wrap:wrap}.count-player .chosen-digit{min-width:45px}.count-player .chosen-word{font-size:22px}.count-player .listen{margin-left:0;width:100%}.section-title{align-items:flex-start}.count-tools{flex-wrap:wrap;justify-content:flex-end;gap:6px}.count-tools .control{padding:8px 10px}.count-tools label{font-size:11px}.section-title h2{font-size:25px}.count-status{font-size:11px}}

.next-group{background:var(--navy)!important;color:var(--linen)!important;border-color:var(--navy)!important;display:flex;flex-direction:column;justify-content:center}.next-group .english,.next-group .guide{color:var(--sky)!important}.next-group .digit{color:var(--yellow)}.jump-button{min-height:64px!important;text-align:center!important;padding:10px!important}.jump-button .digit{font-size:25px!important}.jump-button[aria-pressed=true]{background:var(--navy)!important;color:var(--yellow)!important;outline:2px solid var(--navy)}.tens-grid{grid-template-columns:repeat(11,minmax(0,1fr))}.back-group{margin-top:14px}.number-tile .word{font-size:clamp(15px,1.6vw,18px)}@media(max-width:1000px){.tens-grid{grid-template-columns:repeat(6,minmax(0,1fr))}}@media(max-width:650px){.tens-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.number-tile .word{font-size:17px}.number-tile .guide{font-size:10px}}
/* Keep all five learning sections reachable on narrow screens. */
header{flex-wrap:wrap;gap:14px}.page-nav{flex-wrap:wrap}@media(max-width:450px){.page-nav{width:100%}}