*{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Segoe UI',system-ui,sans-serif;background:#1c2836;color:#222;min-height:100vh}
.scene{max-width:900px;margin:0 auto;perspective:1400px}
.room{position:relative;background:linear-gradient(#efe0c6,#d3ba8f);padding:20px 20px 0;overflow:visible;box-shadow:0 20px 50px rgba(0,0,0,.45);transform-style:preserve-3d}
.wall{position:relative;height:60px}
.window{position:absolute;left:12px;top:0;width:120px;height:78px;background:linear-gradient(#bfe4ff,#8fc9f5);border:6px solid #f4f0e8;border-radius:4px;display:flex;overflow:hidden;box-shadow:inset 0 0 12px rgba(0,0,0,.15),0 3px 6px rgba(0,0,0,.15)}
.pane{flex:1;border:2px solid #f4f0e8}
.cloud{position:absolute;background:#fff;border-radius:50%;opacity:.85}
.c1{width:34px;height:16px;top:16px;left:14px}
.c2{width:26px;height:12px;top:40px;left:64px}
.clock{position:absolute;right:20px;top:6px;width:44px;height:44px;border-radius:50%;background:#fff;border:4px solid #444;box-shadow:0 3px 6px rgba(0,0,0,.25)}
.clock .hh,.clock .mh{position:absolute;left:50%;bottom:50%;transform-origin:bottom;background:#222;border-radius:2px}
.clock .hh{width:3px;height:12px;transform:translateX(-50%) rotate(60deg)}
.clock .mh{width:2px;height:16px;transform:translateX(-50%) rotate(200deg)}
.poster{position:absolute;background:#fff6d8;border:3px solid #e0b84a;border-radius:4px;font-weight:700;color:#b8860b;box-shadow:0 3px 6px rgba(0,0,0,.2)}
.poster-abc{left:170px;top:8px;padding:6px 12px;letter-spacing:4px}
.poster-map{left:300px;top:2px;font-size:40px;background:none;border:none;box-shadow:none}
.board-area{position:relative;margin-top:10px;display:flex;flex-direction:column;align-items:center}
.blackboard{width:100%;max-width:640px;min-height:230px;background:#2f4738;border:14px solid #6b4f2e;border-radius:8px;box-shadow:inset 0 0 40px rgba(0,0,0,.5),0 14px 26px rgba(0,0,0,.4);padding:18px 24px;color:#eafaf0;font-family:'Comic Sans MS','Segoe Print',cursive}
.chalk-title{text-align:center;font-size:26px;border-bottom:2px dashed rgba(255,255,255,.35);padding-bottom:6px;margin-bottom:12px;text-shadow:1px 1px 0 rgba(0,0,0,.3)}
.scoreline{font-size:15px;opacity:.9;margin-bottom:10px}
.question{font-size:22px;line-height:1.4;min-height:60px}
.q-cat{display:inline-block;font-size:13px;background:rgba(255,255,255,.15);padding:2px 10px;border-radius:12px;margin-bottom:8px}
.tray{width:100%;max-width:640px;height:12px;background:#5a3f22;border-radius:0 0 6px 6px;margin-top:-2px;box-shadow:0 6px 10px rgba(0,0,0,.3)}
.teacher-area{position:relative;display:flex;align-items:flex-end;gap:14px;margin-top:6px;padding-left:16px;z-index:6}
.teacher{transition:transform .2s;filter:drop-shadow(0 8px 8px rgba(0,0,0,.3))}
.teacher.happy{animation:bob .5s ease}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
.speech{position:relative;background:#fff;border:3px solid #3f5b7c;border-radius:16px;padding:12px 16px;max-width:420px;font-size:16px;color:#223;margin-bottom:20px;box-shadow:0 6px 14px rgba(0,0,0,.25)}
.speech:after{content:'';position:absolute;left:-16px;bottom:18px;border:8px solid transparent;border-right-color:#3f5b7c}
.teacher-desk{height:34px;background:linear-gradient(#8a6134,#5f4120);border-top:4px solid #4c3316;border-radius:4px;box-shadow:0 8px 12px rgba(0,0,0,.35);position:relative;z-index:5}
.classroom{position:relative;margin-top:2px;padding:18px 8px 22px;background:linear-gradient(180deg,#cbb587,#a98d5c);border-top:3px solid #4c3316;display:flex;flex-direction:column;align-items:center}
.student-row{display:flex;flex-direction:column;align-items:center;width:100%}
.student-row.back{transform:scale(.8);margin-bottom:-14px;filter:brightness(.93) saturate(.95);z-index:1}
.student-row.front{z-index:2}
.students-lineup{display:flex;justify-content:center;gap:8px;position:relative;z-index:1;margin-bottom:-22px}
.student{width:96px;text-align:center;filter:drop-shadow(0 8px 6px rgba(0,0,0,.28));cursor:pointer;user-select:none;position:relative}
.student svg{width:100%;height:auto;display:block}
.student-name{position:relative;z-index:5;font-size:12px;font-weight:700;color:#3a2b18;background:rgba(255,255,255,.85);border-radius:8px;display:inline-block;padding:1px 9px;margin-top:-4px;box-shadow:0 2px 3px rgba(0,0,0,.25)}
.student:hover{transform:translateY(-2px)}
.student:active{transform:translateY(0)}
.student.used{opacity:.55;filter:grayscale(.1) drop-shadow(0 8px 6px rgba(0,0,0,.2))}
.student .ability-badge{position:absolute;left:6px;top:6px;z-index:6;background:rgba(255,255,255,.92);border:2px solid #3f5b7c;border-radius:10px;padding:2px 6px;font-size:10px;font-weight:800;color:#223;box-shadow:0 2px 4px rgba(0,0,0,.2)}
.student .cooldown{position:absolute;right:6px;top:6px;z-index:6;background:rgba(0,0,0,.55);color:#fff;border-radius:10px;padding:2px 6px;font-size:10px;font-weight:800;display:none}
.student.on-cooldown .cooldown{display:block}
.student.glow{animation:glow 1.2s ease-in-out infinite}
@keyframes glow{0%,100%{filter:drop-shadow(0 8px 6px rgba(0,0,0,.28)) drop-shadow(0 0 0 rgba(224,184,74,0))}50%{filter:drop-shadow(0 8px 6px rgba(0,0,0,.28)) drop-shadow(0 0 10px rgba(224,184,74,.75))}}

.row-desk{position:relative;z-index:4;width:94%;max-width:640px;height:30px;background:linear-gradient(#bb8c4f,#7a5228);border-radius:5px;box-shadow:0 10px 12px rgba(0,0,0,.32),inset 0 3px 0 rgba(255,255,255,.3)}

.panel{max-width:900px;margin:0 auto;background:#f4efe4;padding:20px;min-height:220px}

.hud{display:flex;gap:14px;flex-wrap:wrap;align-items:stretch;margin-bottom:14px}
.hud-left,.hud-right{flex:1;min-width:260px;background:#fff;border:2px solid #c9bfa8;border-radius:12px;padding:12px 12px;box-shadow:0 2px 4px rgba(0,0,0,.06)}
.hud-title{font-size:12px;font-weight:900;letter-spacing:.6px;text-transform:uppercase;color:#5a4b33;margin-bottom:8px}
.powerbar{display:flex;flex-wrap:wrap;gap:8px}
.powerpill{display:inline-flex;align-items:center;gap:8px;border:2px solid #3f5b7c;border-radius:999px;padding:6px 10px;background:#f6fbff;font-weight:800;font-size:12px;color:#223}
.powerpill .small{font-weight:700;opacity:.85}
.powerpill button{border:none;background:#3f5b7c;color:#fff;border-radius:999px;padding:6px 10px;font-weight:900;cursor:pointer;font-size:12px}
.powerpill button:disabled{opacity:.5;cursor:default}
.effects{display:flex;flex-direction:column;gap:6px;min-height:24px}
.effect{font-size:13px;background:#fff6e0;border:2px solid #e0b84a;border-radius:10px;padding:8px 10px;color:#3a2b18}
.effect strong{font-weight:900}

.answer-zone{display:flex;flex-direction:column;gap:10px;margin-bottom:14px}
.opt{text-align:left;padding:14px 16px;font-size:17px;background:#fff;border:2px solid #c9bfa8;border-radius:10px;cursor:pointer;transition:.15s;box-shadow:0 2px 4px rgba(0,0,0,.08)}
.opt:hover{background:#fff6e0;border-color:#e0b84a}
.opt.correct{background:#c8f0cf;border-color:#3aa84f}
.opt.wrong{background:#f6cfcf;border-color:#c0392b}
.opt:disabled{cursor:default}
.text-answer{display:flex;gap:10px;flex-wrap:wrap}
.text-answer input{flex:1;min-width:200px;padding:14px;font-size:17px;border:2px solid #c9bfa8;border-radius:10px}
.btn{padding:12px 22px;font-size:16px;font-weight:600;background:#3f5b7c;color:#fff;border:none;border-radius:10px;cursor:pointer;transition:.15s}
.btn:hover{background:#324a66}
.btn.secondary{background:#8a7b63}
.btn.secondary:hover{background:#71634e}
.controls{display:flex;gap:12px;flex-wrap:wrap}
.feedback{font-size:16px;line-height:1.5;margin-bottom:14px;padding:12px 16px;border-radius:10px;display:none}
.feedback.show{display:block}
.feedback.good{background:#d8f5de;border-left:5px solid #3aa84f}
.feedback.bad{background:#fbe1de;border-left:5px solid #c0392b}
.hidden{display:none}
.final{text-align:center;font-size:20px;line-height:1.6}
.minihelp{margin-top:10px;font-size:12px;color:#5a4b33;opacity:.9}

@media(max-width:600px){.poster-abc,.poster-map{display:none}.question{font-size:19px}.speech{font-size:14px}.students-lineup{gap:3px}.student{width:74px}.hud-left,.hud-right{min-width:0}}