:root{
  color-scheme:light;
  --ink:#172033;
  --muted:rgba(23,32,51,.68);
  --purple:#6d4cff;
  --blue:#2563eb;
  --teal:#10b7b0;
  --pink:#ec4899;
  --orange:#f97316;
  --green:#10b981;
  --soft:#f5f7ff;
  --card:#fff;
  --border:rgba(23,32,51,.12);
  --shadow:0 18px 50px rgba(23,32,51,.13);
  --radius:28px;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
body{margin:0;min-height:100vh;background:linear-gradient(135deg,#f8f7ff,#eef8ff);color:var(--ink)}
button,select,textarea{font:inherit}
button{cursor:pointer}
.ss-app{max-width:1220px;margin:0 auto;padding:24px 16px 54px}
.setup-screen,.game-screen,.end-screen{animation:rise .26s ease both}
@keyframes rise{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
[hidden]{display:none!important}
.brand-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:18px}
.brand-pill,.subject-pill{display:inline-flex;align-items:center;min-height:34px;padding:7px 13px;border-radius:999px;background:#fff;color:var(--purple);font-weight:900;font-size:.92rem;box-shadow:0 8px 22px rgba(23,32,51,.08)}
.subject-pill{color:#155bbb;background:rgba(37,99,235,.10)}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:20px;align-items:stretch;padding:clamp(28px,5vw,58px);border-radius:34px;background:radial-gradient(circle at top left,rgba(109,76,255,.23),transparent 34%),radial-gradient(circle at bottom right,rgba(236,72,153,.16),transparent 36%),#fff;border:1px solid var(--border);box-shadow:var(--shadow)}
h1{margin:0;font-size:clamp(2.5rem,7vw,5.7rem);line-height:.94;letter-spacing:-.07em}
.hero-copy{max-width:760px;margin:18px 0 0;color:var(--muted);font-size:clamp(1.05rem,2vw,1.28rem);line-height:1.55}
.mini-preview{display:grid;gap:14px;align-content:center;min-height:240px;border-radius:28px;padding:24px;background:linear-gradient(135deg,#172033,#2a3770);box-shadow:inset 0 0 0 1px rgba(255,255,255,.10)}
.preview-track,.preview-slots{display:flex;gap:9px;flex-wrap:wrap;justify-content:center}
.preview-track span{padding:12px 14px;border-radius:16px;background:#fff;font-weight:900;color:var(--ink);box-shadow:0 10px 20px rgba(0,0,0,.18)}
.preview-slots span{width:74px;height:44px;border-radius:14px;background:rgba(255,255,255,.14);border:1px dashed rgba(255,255,255,.45)}
.setup-panel{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-top:18px;padding:18px;border-radius:28px;background:#fff;border:1px solid var(--border);box-shadow:0 14px 38px rgba(23,32,51,.08)}
label{display:grid;gap:7px;color:var(--ink);font-weight:900}
label span small{font-weight:700;color:var(--muted)}
select,textarea{width:100%;border:1px solid var(--border);border-radius:16px;background:#fff;color:var(--ink);padding:13px 14px;outline:none;box-shadow:0 8px 20px rgba(23,32,51,.04)}
textarea{resize:vertical;min-height:118px;line-height:1.45}
.wide-label{grid-column:1/-1}
.setup-actions{grid-column:1/-1;display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.primary-btn,.ghost-btn,.ghost-link,.small-btn{display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:13px 18px;border-radius:16px;border:1px solid transparent;text-decoration:none!important;font-weight:900}
.primary-btn{background:var(--purple);color:#fff;box-shadow:0 12px 28px rgba(109,76,255,.25)}
.ghost-btn,.ghost-link{background:#fff;color:var(--ink);border-color:var(--border);box-shadow:0 8px 18px rgba(23,32,51,.05)}
.small-btn{min-height:40px;padding:9px 12px;background:#fff;color:var(--ink);border-color:var(--border)}
.game-header{display:grid;grid-template-columns:1fr auto;gap:18px;align-items:end;padding:18px;border-radius:28px;background:#fff;border:1px solid var(--border);box-shadow:0 14px 38px rgba(23,32,51,.08)}
.game-title-block h2{margin:10px 0 0;font-size:clamp(1.7rem,4vw,3.4rem);line-height:1;letter-spacing:-.055em}
.score-strip{display:grid;grid-template-columns:repeat(4,auto);gap:10px}
.score-strip div{min-width:90px;text-align:center;padding:12px;border-radius:18px;background:var(--soft);border:1px solid rgba(23,32,51,.07)}
.score-strip strong{display:block;font-size:1.35rem;line-height:1;color:var(--purple)}
.score-strip span{display:block;margin-top:5px;font-size:.74rem;font-weight:850;color:var(--muted);text-transform:uppercase;letter-spacing:.05em}
.question-card{margin-top:16px;padding:18px;border-radius:26px;background:linear-gradient(135deg,#fff,#f7f9ff);border:1px solid var(--border);box-shadow:0 12px 32px rgba(23,32,51,.07)}
.question-topline{display:flex;gap:12px;align-items:center;justify-content:space-between}
#focusTag{display:inline-flex;min-height:34px;align-items:center;padding:7px 11px;border-radius:999px;background:rgba(109,76,255,.10);color:#5a3bd6;font-weight:900}
.hint{margin:14px 0 0;font-size:clamp(1.1rem,2vw,1.45rem);line-height:1.35;color:var(--ink);font-weight:850}
.feedback{margin:10px 0 0;color:var(--muted);font-weight:800;min-height:1.4em}
.feedback.good{color:#087c78}.feedback.bad{color:#b42318}
.sentence-zone{margin-top:16px;display:grid;gap:16px}
.slots,.word-bank{display:flex;gap:10px;flex-wrap:wrap;align-items:center;justify-content:center;padding:18px;border-radius:28px;border:1px solid var(--border);background:#fff;box-shadow:0 14px 38px rgba(23,32,51,.08)}
.slots{min-height:148px;background:linear-gradient(135deg,#ffffff,#f8fbff)}
.word-bank{min-height:136px;background:linear-gradient(135deg,#172033,#253161);border-color:rgba(255,255,255,.16)}
.slot{min-width:92px;min-height:58px;border-radius:18px;border:2px dashed rgba(23,32,51,.22);background:rgba(245,247,255,.9);display:flex;align-items:center;justify-content:center;padding:6px;transition:.16s ease;position:relative}
.slot::after{content:attr(data-number);position:absolute;left:8px;top:6px;color:rgba(23,32,51,.28);font-weight:900;font-size:.72rem}
.slot.active,.slot.drag-over{border-color:var(--purple);background:rgba(109,76,255,.09);transform:translateY(-2px)}
.word-chip{min-height:52px;padding:12px 16px;border:0;border-radius:18px;background:#fff;color:var(--ink);font-weight:950;font-size:clamp(1rem,2vw,1.22rem);box-shadow:0 10px 22px rgba(0,0,0,.13);transition:transform .14s ease, box-shadow .14s ease, outline-color .14s ease;touch-action:manipulation}
.word-chip:hover{transform:translateY(-2px);box-shadow:0 16px 26px rgba(0,0,0,.16)}
.word-chip.selected{outline:4px solid rgba(109,76,255,.32);transform:translateY(-3px) scale(1.03)}
.slot .word-chip{box-shadow:0 8px 18px rgba(23,32,51,.12);font-size:clamp(1rem,2vw,1.18rem)}
.control-row{display:flex;gap:12px;flex-wrap:wrap;justify-content:center;margin-top:16px;padding:14px;border-radius:24px;background:#fff;border:1px solid var(--border);box-shadow:0 12px 30px rgba(23,32,51,.07)}
.shake{animation:shake .36s ease}
@keyframes shake{0%,100%{transform:translateX(0)}25%{transform:translateX(-8px)}50%{transform:translateX(8px)}75%{transform:translateX(-5px)}}
.end-screen{min-height:100vh;display:grid;place-items:center}
.end-card{max-width:760px;width:min(100%,760px);border-radius:34px;padding:clamp(28px,5vw,58px);background:#fff;border:1px solid var(--border);box-shadow:var(--shadow);text-align:center}
.end-card h2{margin:14px 0 8px;font-size:clamp(2rem,5vw,4.5rem);line-height:.98;letter-spacing:-.06em}
.end-card p{color:var(--muted);font-size:1.12rem;line-height:1.5}
.end-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:22px 0}
.end-stats div{padding:18px;border-radius:20px;background:var(--soft);border:1px solid rgba(23,32,51,.07)}
.end-stats strong{display:block;font-size:2rem;color:var(--purple)}
.end-stats span{display:block;color:var(--muted);font-weight:850;font-size:.8rem;text-transform:uppercase;letter-spacing:.05em}
@media(max-width:900px){.hero-grid,.game-header{grid-template-columns:1fr}.setup-panel{grid-template-columns:repeat(2,minmax(0,1fr))}.score-strip{grid-template-columns:repeat(4,1fr)}}
@media(max-width:640px){.ss-app{padding-left:10px;padding-right:10px}.hero-grid{border-radius:24px;padding:24px}.setup-panel{grid-template-columns:1fr}.setup-actions,.control-row{display:grid;grid-template-columns:1fr}.primary-btn,.ghost-btn,.ghost-link{width:100%}.score-strip{grid-template-columns:repeat(2,1fr)}.slot{min-width:74px}.end-stats{grid-template-columns:1fr}}