:root{--ink:#19142c;--purple:#7052e5;--purple-soft:#efeaff;--bg:#f5f5fa;--line:#e1deeb;--muted:#6a6478;--green:#197c60;--danger:#b12d47}*{box-sizing:border-box}html{font-size:16px}body{margin:0;font-family:Inter,"Segoe UI",system-ui,sans-serif;color:var(--ink);background:var(--bg);line-height:1.5}button,input,select,textarea{font:inherit}button,a.button{cursor:pointer}button:disabled{opacity:.5;cursor:default}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:3px solid #ab91ff;outline-offset:3px}button{border:0}a{color:var(--purple)}[hidden]{display:none!important}.shell{display:grid;grid-template-columns:210px minmax(0,1fr);min-height:100vh}.sidebar{position:sticky;top:0;height:100vh;background:var(--ink);color:white;padding:24px 15px;display:flex;flex-direction:column}.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-weight:850;font-size:1.45rem;margin:0 10px 26px}.brand span{display:grid;place-items:center;width:37px;height:37px;border-radius:11px;background:var(--purple);font-size:1.1rem}.sidebar nav{display:grid;gap:5px}.sidebar nav button{background:none;color:#bcb6cd;text-align:left;padding:12px 13px;border-radius:10px;font-weight:650;display:flex;align-items:center;gap:12px}.sidebar nav button span{width:20px;text-align:center}.sidebar nav button.active,.sidebar nav button:hover{background:#312845;color:#fff}.side-foot{margin-top:auto;padding:18px 12px;border-top:1px solid #423751}.side-foot small{display:block;color:#bcb6cd}.subtle{background:transparent;color:#bcb6cd;padding:10px 0;margin-top:15px}main{min-width:0;max-width:1600px;width:100%;padding:0 36px 48px;margin:auto}.topbar{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:22px 0}.eyebrow{font-size:.75rem;letter-spacing:.07em;font-weight:800;text-transform:uppercase;margin:0;color:var(--muted)}h1{font-size:1.6rem;margin:2px 0}h2{font-size:1.55rem;margin:0 0 8px;line-height:1.25}h3{margin:0 0 8px;font-size:1.15rem}p{margin:8px 0 16px}.muted,small{color:var(--muted)}small{font-size:.875rem}.local-badge,.badge{font-size:.875rem;padding:6px 11px;border:1px solid var(--line);border-radius:8px;background:white;color:var(--muted)}.view{display:none}.view.active{display:block}.primary,.secondary,.button{padding:10px 16px;border-radius:9px;font-weight:750;display:inline-block;text-decoration:none;text-align:center}.primary{background:var(--purple);color:#fff}.primary:hover{background:#5a3cd2}.secondary{background:#eeebf5;color:#433554}.text-button{background:none;color:var(--purple);padding:8px 5px;font-weight:700}.danger{color:var(--danger)}.actions{display:flex;gap:9px;flex-wrap:wrap;align-items:center}.heading{display:flex;justify-content:space-between;gap:16px;align-items:center;margin:25px 0 14px}.heading h2,.heading h3{margin:0}.heading p{margin:5px 0}.panel{background:#fff;border:1px solid var(--line);border-radius:15px;padding:22px}.study-banner{display:flex;align-items:center;justify-content:space-between;gap:24px;border-radius:18px;padding:25px 28px;background:var(--ink);color:white}.study-banner .eyebrow{color:#b7a8ef}.study-banner h2{margin-top:7px;font-size:2rem}.study-banner p:last-child{margin:0;color:#c2bace}.fields{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:13px}label{display:grid;gap:6px;font-size:.875rem;font-weight:650}input,select,textarea{border:1px solid var(--line);background:#fff;border-radius:8px;padding:9px 11px;color:var(--ink);width:100%;min-width:0;font-size:1rem}textarea{resize:vertical}input[type=checkbox]{width:18px;height:18px;accent-color:var(--purple)}.form-footer{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:18px}.form-footer p{color:var(--muted);font-size:.875rem;margin:0}.deck-grid,.rooms-grid,.stats-grid,.plans-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.deck{padding:20px;background:white;border:1px solid var(--line);border-radius:14px}.deck .eyebrow{color:var(--purple)}.deck h3{margin:9px 0 6px}.deck p{font-size:.875rem;color:var(--muted);margin:0 0 12px}.deck-meter{height:5px;background:#eee9f7;border-radius:9px;margin:12px 0}.deck-meter i{height:100%;display:block;background:var(--purple);border-radius:9px}.filters{display:grid;grid-template-columns:minmax(200px,2fr) repeat(3,minmax(110px,1fr));gap:12px;padding:16px}.selection-bar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;padding:14px 0;font-size:.875rem}.selection-bar>p{margin:0 auto 0 0;color:var(--muted)}.check-label{display:flex;gap:7px;align-items:center}.table-wrap{background:white;border:1px solid var(--line);border-radius:12px;overflow:auto;max-height:68vh;scrollbar-gutter:stable}table{width:100%;border-collapse:collapse;font-size:1rem;text-align:left}th{font-size:.875rem;background:#ede8f7;color:#594a72;position:sticky;top:0;z-index:1;padding:11px 14px;white-space:nowrap}td{padding:12px 14px;border-top:1px solid var(--line);vertical-align:top;overflow-wrap:anywhere;max-width:330px}td p{margin:0}td small{display:block}tbody tr:nth-child(even){background:#faf9fd}.compact td{padding:7px 14px}.table-wrap input{width:18px}.table-wrap td .text-button{padding:3px 5px;font-size:.875rem}.empty{padding:24px;color:var(--muted)}.notice{margin:18px 0;padding:12px 16px;border-radius:10px;background:var(--purple-soft);color:#51407a}.rooms-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.room{background:white;border:1px solid var(--line);padding:17px;border-radius:12px}.room p{font-size:.875rem;color:var(--muted);margin:6px 0}.room strong{font-size:.875rem}.stats-grid{margin-bottom:18px}.stat{padding:20px;border:1px solid var(--line);background:white;border-radius:14px}.stat strong{display:block;font-size:2rem}.stat span{color:var(--muted);font-size:.875rem}.activity{display:grid;grid-template-columns:repeat(7,1fr);gap:12px;margin-top:18px;align-items:end;height:190px}.activity div{display:flex;flex-direction:column;align-items:center;gap:5px;height:100%;justify-content:end}.activity i{background:var(--purple);width:100%;max-width:55px;border-radius:8px 8px 3px 3px;min-height:3px}.activity span{font-size:.875rem}.history-row{display:grid;grid-template-columns:1fr auto auto;gap:15px;border-bottom:1px solid var(--line);padding:10px 0}.history-row:last-child{border:0}.settings-grid,.plans-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.plans-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.session-view{max-width:780px;margin:0 auto}.flashcard{padding:35px;background:#fff;border:1px solid var(--line);border-radius:20px;text-align:center;min-height:300px}.flashcard h2{font-size:clamp(2rem,5vw,3.8rem);overflow-wrap:anywhere;margin:25px 0}.flashcard #sessionBack{font-size:1.45rem;white-space:pre-wrap}.flashcard .primary small{color:#ddd3ff;margin-left:8px}.ratings{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:16px}.ratings button{border:1px solid var(--line);border-radius:10px;padding:13px;background:white;color:var(--ink)}.ratings button small{display:block}.ratings button:hover{border-color:var(--purple);background:var(--purple-soft)}#sessionWait{margin-top:18px;text-align:center}.question h2{font-size:2.2rem;overflow-wrap:anywhere}.question .choices{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.choices button{background:#f6f4fc;border:1px solid #d8d0e8;padding:18px;border-radius:12px;text-align:left;color:var(--ink)}.choices button:hover{background:var(--purple-soft)}.scoreboard{display:flex;gap:18px;justify-content:space-between;background:#f6f3fc;border-radius:10px;padding:12px 16px;margin-bottom:18px}.scoreboard strong{display:block;font-size:1.4rem}.timer{font-variant-numeric:tabular-nums;color:var(--purple);font-weight:750}.feedback{padding:12px 16px;background:var(--purple-soft);border-radius:10px}dialog{border:1px solid var(--line);border-radius:18px;padding:25px;width:min(640px,calc(100% - 24px));max-height:90vh;color:var(--ink)}dialog::backdrop{background:#16102588}dialog .heading{margin-top:0}dialog form>label{margin:13px 0}dialog form>.primary{margin-top:10px}.file-field{margin-top:20px}.toast{position:fixed;bottom:22px;right:22px;z-index:50;background:var(--ink);color:#fff;padding:13px 18px;border-radius:10px;max-width:min(520px,calc(100% - 44px));opacity:0;pointer-events:none;transition:opacity .15s}.toast.show{opacity:1}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:1100px){.deck-grid,.rooms-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.filters{grid-template-columns:repeat(3,minmax(0,1fr))}.filters .search{grid-column:1/-1}.plans-grid{grid-template-columns:1fr}}
@media(max-width:760px){.shell{display:block}.sidebar{position:sticky;top:0;height:auto;padding:10px 12px;z-index:20}.brand{font-size:1.1rem;margin:0 0 9px}.brand span{width:27px;height:27px;font-size:.875rem}.sidebar nav{display:flex;overflow:auto;gap:4px}.sidebar nav button{padding:9px 10px;white-space:nowrap;font-size:.875rem}.sidebar nav button span,.side-foot{display:none}main{padding:0 16px 30px}.topbar{padding:17px 0}.local-badge{font-size:.75rem;max-width:140px}.study-banner{align-items:flex-start;flex-direction:column;padding:22px;gap:15px}.study-banner h2{font-size:1.6rem}.heading{align-items:flex-start;flex-wrap:wrap}.deck-grid,.rooms-grid,.stats-grid,.settings-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.fields{grid-template-columns:repeat(2,minmax(0,1fr))}.form-footer{align-items:flex-start;flex-direction:column}.filters{grid-template-columns:repeat(2,minmax(0,1fr))}.table-wrap{max-height:65vh}table{font-size:.9375rem}th,td,.compact td{padding:8px 10px}.table-wrap table{min-width:650px}.settings-grid{grid-template-columns:1fr}.ratings{grid-template-columns:repeat(2,minmax(0,1fr))}.question .choices{grid-template-columns:1fr}.flashcard{padding:25px 18px}.history-row{grid-template-columns:1fr auto}.history-row>small{grid-column:1/-1}.scoreboard{font-size:.875rem}}
@media(max-width:420px){.deck-grid,.rooms-grid{grid-template-columns:1fr}.panel{padding:17px}.selection-bar>.primary{width:100%}.activity{gap:7px}.activity span{font-size:.75rem}}
@media(prefers-reduced-motion:reduce){*{transition:none!important}}
@media(max-width:760px){
#libraryView table,#collectionTable table{display:block;min-width:0}#libraryView thead,#collectionTable thead{display:none}#libraryView tbody,#collectionTable tbody{display:block}
#libraryRows tr{display:grid;grid-template-columns:24px minmax(0,1fr) 75px;padding:10px;gap:3px 8px;border-top:1px solid var(--line)}
#libraryRows td{border:0;padding:0;max-width:none}#libraryRows td:nth-child(1){grid-column:1;grid-row:1 / 4}#libraryRows td:nth-child(2){grid-column:2;grid-row:1}#libraryRows td:nth-child(3){grid-column:2;grid-row:2}#libraryRows td:nth-child(4){grid-column:2;grid-row:3}#libraryRows td:nth-child(5){grid-column:3;grid-row:1 / 4;text-align:right}
#collectionRows tr{display:grid;grid-template-columns:minmax(0,1fr) auto;padding:14px 12px;gap:5px 10px;border-top:1px solid var(--line)}#collectionTable.compact tr{padding:9px 12px}
#collectionRows td,#collectionTable.compact td{padding:0;border:0;max-width:none}#collectionRows td:nth-child(1){grid-column:1 / 3}#collectionRows td:nth-child(2){grid-column:1 / 3}#collectionRows td:nth-child(3){grid-column:1;grid-row:3}#collectionRows td:nth-child(4){grid-column:2;grid-row:3;text-align:right}#collectionRows td:nth-child(5){grid-column:1 / 3}
}

.play-hero{position:relative;overflow:hidden;display:grid;grid-template-columns:minmax(0,1.15fr) minmax(280px,.85fr);align-items:center;gap:48px;min-height:430px;padding:clamp(34px,6vw,72px);border-radius:28px;background:linear-gradient(135deg,#18122b 0%,#2c2050 62%,#5a3bd1 100%);color:#fff;box-shadow:0 24px 70px #35255f24}.play-hero::after{content:"";position:absolute;width:360px;height:360px;border-radius:50%;right:-170px;top:-190px;background:#967aff33}.play-copy{position:relative;z-index:1;max-width:650px}.play-copy .eyebrow{color:#c8b8ff}.play-copy h2{font-size:clamp(2.4rem,5vw,5rem);letter-spacing:-.045em;line-height:.98;margin:13px 0 22px}.play-copy>p:not(.eyebrow):not(.play-meta){font-size:clamp(1rem,1.7vw,1.25rem);color:#d8d2e7;max-width:560px}.play-now{margin-top:12px;padding:17px 25px;border-radius:13px;font-size:1.1rem;box-shadow:0 10px 25px #0d092d55}.play-now span{margin-left:18px}.play-meta{color:#bfb5d5;font-size:.875rem;margin:11px 0 0}.word-preview{position:relative;z-index:1;padding:27px;border:1px solid #ffffff26;border-radius:22px;background:#ffffff10;box-shadow:inset 0 1px 0 #ffffff1c;backdrop-filter:blur(8px)}.preview-kicker{display:block;color:#bdadef;font-size:.72rem;font-weight:800;letter-spacing:.09em}.word-preview>strong{display:block;font-size:clamp(2rem,4vw,3.4rem);margin:19px 0 25px}.word-preview div{display:grid;gap:9px}.word-preview div span{padding:10px 13px;border:1px solid #ffffff20;border-radius:9px;color:#d9d2ea}.word-preview div .correct{border-color:#6ee0b5;background:#2e96704d;color:#e2fff4}.home-next{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(280px,.8fr);gap:16px;margin-top:18px}.home-next .study-banner{border-radius:18px}.home-next .study-banner .secondary{background:#fff;color:var(--ink)}.arena-invite{display:flex;align-items:center;justify-content:space-between;gap:16px}.arena-invite p{margin-bottom:0;color:var(--muted)}.home-more{margin-top:18px;border-top:1px solid var(--line);padding-top:16px}.home-more>summary{cursor:pointer;color:var(--purple);font-weight:800;padding:10px 2px}.home-more>summary::marker{color:var(--purple)}.home-more>.muted{margin:0 0 10px}
@media(max-width:1100px){.play-hero{gap:28px;padding:45px}.home-next{grid-template-columns:1fr}}
@media(max-width:760px){.play-hero{grid-template-columns:1fr;min-height:0;padding:34px 25px;border-radius:20px}.play-copy h2{font-size:clamp(2.45rem,13vw,4rem)}.word-preview{display:none}.play-now{width:100%}.arena-invite{align-items:flex-start;flex-direction:column}.home-more .fields{grid-template-columns:1fr}}

.header-tools{display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:flex-end}.language-tools{display:flex;gap:10px}.language-tools label{font-size:.75rem;color:var(--muted)}.language-tools select{font-size:.875rem;padding:7px 9px;max-width:180px}.language-tools label:first-child select{min-width:104px}
.network-footer{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-top:42px;padding:22px 0;border-top:1px solid var(--line);color:var(--muted);font-size:.875rem}.network-footer div{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:9px}.network-footer a{padding:8px 11px;border:1px solid var(--line);border-radius:9px;background:#fff;text-decoration:none;font-weight:700}.network-footer a:hover{border-color:var(--purple);color:var(--purple)}
@media(max-width:1000px){.header-tools{gap:7px}.header-tools .local-badge{font-size:.75rem}}
@media(max-width:760px){.topbar{align-items:flex-start;flex-wrap:wrap}.header-tools{width:100%;justify-content:space-between}.language-tools{flex:1}.language-tools label{flex:1}.language-tools select{max-width:none;width:100%}.header-tools .local-badge{display:none}.network-footer{align-items:flex-start;flex-direction:column}.network-footer div{justify-content:flex-start}}