:root{
  --bg:#f6f8fa;--panel:#fff;--text:#2b3035;--muted:#6f7780;--line:#dfe4e8;
  --accent:#6f8faf;--accent-strong:#587895;--accent-soft:#eaf0f5;--warn:#8a5a13;--warn-soft:#fff3d7;
  --danger:#9f2d2d;--danger-soft:#fde8e8;--radius:18px;
  font-family:-apple-system,BlinkMacSystemFont,"Hiragino Sans","Yu Gothic",sans-serif;
}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text)}
button,input{font:inherit}button{touch-action:manipulation}button,input{min-height:48px}
.app-shell{width:min(100%,1040px);margin:0 auto;padding:24px clamp(16px,4vw,38px) 54px}
.brand{margin:6px 0 26px}.brand-kicker{display:none}
.brand-title{margin:0;font-size:clamp(30px,5vw,44px);line-height:1.1;letter-spacing:-.025em}.brand-sub{color:var(--muted);font-size:14px;margin-top:8px}
.grid{display:grid;gap:16px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.card.action{text-align:left;width:100%;cursor:pointer}.card.action:active{transform:scale(.99)}.card h2,.card h3{margin-top:0}
.narrow{max-width:620px;margin-inline:auto}.center{text-align:center}.muted{color:var(--muted)}.small{font-size:13px}
.pill{display:inline-flex;align-items:center;min-height:30px;padding:5px 10px;border-radius:999px;background:#efefec;font-size:13px;font-weight:800}.pill.accent{background:var(--accent-soft);color:var(--accent)}
.btn{border:0;border-radius:14px;padding:12px 18px;font-weight:850;cursor:pointer;background:#eef1f3;color:var(--text)}.btn.primary{background:var(--accent);color:#fff}.btn.primary:active{background:var(--accent-strong)}.btn.danger{background:var(--danger-soft);color:var(--danger)}.btn.ghost{background:transparent;border:1px solid var(--line)}.btn:disabled{opacity:.45;cursor:not-allowed}
.actions{display:flex;flex-wrap:wrap;gap:10px;align-items:center}.center-actions{justify-content:center}.topbar{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:18px}.sticky-actions{margin-top:16px}
.field{display:grid;gap:8px;margin:14px 0}.field label{font-weight:900}.field input{width:100%;border:1px solid var(--line);border-radius:14px;padding:12px 14px;background:#fff;font-size:18px}.code-input{text-align:center;font-size:34px!important;letter-spacing:.18em;font-weight:900}
.notice{border:1px dashed var(--line);border-radius:14px;padding:12px 14px;color:var(--muted)}.feedback-area{margin-top:14px}.feedback{border-radius:14px;padding:14px;font-weight:900}.feedback.ok{background:var(--accent-soft);color:var(--accent)}.feedback.no{background:var(--warn-soft);color:var(--warn)}
.hero-code{font-size:clamp(56px,11vw,92px);font-weight:950;letter-spacing:.12em;margin:16px 0}.metric-label{font-size:13px;color:var(--muted);font-weight:800}.metric{font-size:42px;font-weight:950;margin:4px 0 12px}
.nick-list{display:flex;flex-wrap:wrap;gap:8px}.nick-chip{background:#f1f4f6;border-radius:999px;padding:7px 11px;font-weight:800}.nickname-emoji{font-size:72px}.small-emoji{font-size:54px}.nickname-name{font-size:34px;font-weight:950;margin-top:8px}.waiting-dots{font-size:24px;letter-spacing:.4em;color:var(--accent);margin-top:18px}
.preview-list{display:grid;gap:10px}.preview-row{padding:13px 0;border-bottom:1px solid var(--line)}.preview-row:last-child{border-bottom:0}
.stage-count-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:10px}.stage-count{background:#f2f5f7;border-radius:14px;padding:12px;text-align:center}.stage-count-num{font-size:30px;font-weight:950;margin-top:3px}
.student-nick{font-weight:900;margin-top:6px}.progress-label{font-size:22px;font-weight:950}.stage-bar{height:12px;border-radius:999px;background:#e8e8e4;overflow:hidden;margin-bottom:16px}.stage-bar>div{height:100%;background:var(--accent);transition:width .2s ease}
.challenge-card{padding:clamp(18px,4vw,30px)}.challenge-kicker{text-align:center;font-size:14px;color:var(--muted);font-weight:900}.challenge-instruction{text-align:center;font-size:18px;font-weight:800;line-height:1.5}.big-equation{text-align:center;font-size:clamp(34px,7vw,62px);font-weight:950;margin:24px 0}.blank-box{display:inline-flex;align-items:center;justify-content:center;min-width:1.2em;border-bottom:4px solid var(--text);padding:0 .08em}
.choice-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px}.choice-btn,.number-choice,.token-btn{border:2px solid var(--line);background:#fff;border-radius:15px;min-height:62px;font-weight:950;font-size:22px;padding:10px;cursor:pointer}.choice-btn:active,.number-choice:active,.token-btn:active{background:var(--accent-soft);border-color:var(--accent)}
.candidate-row{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin:18px 0}.wrong-label{text-align:center;color:var(--warn);font-weight:900;margin-top:16px}.wrong-answer{color:var(--danger);text-decoration:underline;text-decoration-thickness:4px}
.target-panel{text-align:center;background:#f2f5f7;border-radius:18px;padding:18px;margin-top:12px}.target-number{font-size:clamp(54px,10vw,88px);font-weight:950}.number-badges{display:flex;justify-content:center;flex-wrap:wrap;gap:10px;margin-top:12px}.number-badges span{display:inline-flex;align-items:center;justify-content:center;width:54px;height:54px;border-radius:14px;background:#fff;border:1px solid var(--line);font-size:24px;font-weight:950}.solution-counter{margin-top:12px;font-weight:800;color:var(--accent)}
.expression-display{min-height:74px;border:2px solid var(--line);border-radius:16px;margin:18px 0;padding:18px;text-align:center;font-size:clamp(22px,5vw,36px);font-weight:950;background:#fff}.token-section{margin-top:14px}.token-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:9px;margin-top:8px}.token-grid.ops{grid-template-columns:repeat(4,minmax(0,1fr))}.token-grid.parens{grid-template-columns:1fr 1fr 2fr;margin-top:9px}.token-btn.wide{font-size:17px}.token-btn:disabled{opacity:.3}
.clear-card{margin-top:40px}.clear-icon{width:72px;height:72px;border-radius:50%;display:flex;align-items:center;justify-content:center;background:var(--accent-soft);color:var(--accent);font-size:42px;font-weight:950;margin:0 auto}.clear-title{font-size:34px;font-weight:950;margin-top:14px}.submitted-mark{font-size:28px;font-weight:950;color:var(--accent);margin:16px 0}
.final-target{text-align:center;font-size:22px;font-weight:800;margin-bottom:18px}.final-target strong{font-size:42px;margin-left:6px}.reveal-card{max-width:760px;margin:0 auto;padding:34px}.reveal-question{font-size:76px;font-weight:950}.reveal-emoji{font-size:76px}.reveal-name{font-size:34px;font-weight:950;margin-top:8px}.reveal-expression{font-size:20px;color:var(--muted);margin-top:18px;word-break:break-word}.reveal-value{font-size:88px;font-weight:950;line-height:1.05;margin-top:12px}.reveal-diff{font-size:22px;font-weight:900;color:var(--accent);margin:10px 0 20px}
.winner-banner{background:var(--accent-soft);border-radius:20px;padding:20px;text-align:center;margin-bottom:16px}.winner-banner>div{font-size:18px;font-weight:900;color:var(--accent)}.winner-banner strong{display:block;font-size:28px;margin:6px 0}.winner-banner span{font-size:18px;font-weight:800}.final-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}.final-result{background:#fff;border:2px solid var(--line);border-radius:16px;padding:14px;text-align:center;min-width:0}.final-result.best{border-color:var(--accent);background:var(--accent-soft)}.final-emoji{font-size:34px}.final-value-small{font-size:32px;font-weight:950;margin-top:6px}.tiny-expression{font-size:11px;color:var(--muted);margin-top:7px;word-break:break-word}
hr{border:0;border-top:1px solid var(--line);margin:24px 0}
@media(max-width:760px){.grid.two{grid-template-columns:1fr}.stage-count-grid{grid-template-columns:repeat(3,1fr)}.final-grid{grid-template-columns:repeat(2,1fr)}.choice-grid,.candidate-row{grid-template-columns:repeat(2,1fr)}.topbar{align-items:flex-start}}
@media(max-width:420px){.token-grid,.token-grid.ops{grid-template-columns:repeat(2,1fr)}.final-grid{grid-template-columns:1fr}.app-shell{padding-inline:14px}.big-equation{font-size:32px}}
@media(prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;transition:none!important}}
.room-clock{min-width:92px;text-align:center;border:1px solid var(--line);border-radius:14px;padding:10px 12px;font-size:22px;font-weight:950;font-variant-numeric:tabular-nums;background:#fff}.progress-label small{font-size:12px;color:var(--muted)}


/* v0.5 UI */
.home-screen{position:relative;min-height:calc(100vh - 78px);padding-top:clamp(42px,8vh,84px)}
.home-screen .brand{text-align:center;margin-bottom:44px}
.home-screen .brand-title{font-size:clamp(38px,6vw,58px)}
.home-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;max-width:820px;margin:0 auto}
.entry-card{position:relative;display:grid;grid-template-columns:1fr auto;grid-template-areas:"label arrow" "title arrow";align-items:center;min-height:184px;padding:28px 30px;border:1px solid var(--line);border-radius:24px;background:#fff;text-align:left;color:var(--text);cursor:pointer;box-shadow:0 10px 28px rgba(47,62,76,.04)}
.entry-card:active{transform:translateY(1px)}
.entry-card:hover{border-color:#bfcbd4}.entry-label{grid-area:label;align-self:end;font-size:14px;font-weight:800;color:var(--accent);letter-spacing:.06em}.entry-title{grid-area:title;align-self:start;font-size:clamp(26px,4vw,36px);font-weight:900;margin-top:8px}.entry-arrow{grid-area:arrow;font-size:32px;color:var(--accent);font-weight:700}
.character-slot{position:absolute;right:clamp(10px,2vw,28px);bottom:clamp(10px,2vw,28px);width:clamp(88px,12vw,136px);height:clamp(112px,16vw,172px);pointer-events:none}
.character-placeholder{width:100%;height:100%;border:1.5px dashed #cbd5dc;border-radius:28px;background:linear-gradient(180deg,rgba(234,240,245,.38),rgba(255,255,255,.65));opacity:.6}
.breadcrumbs{display:flex;align-items:center;gap:8px;min-height:24px;margin:-8px 0 18px;color:var(--muted);font-size:13px;font-weight:700}.breadcrumbs .current{color:var(--text)}.crumb-sep{color:#a8b0b7}
.teacher-toolbar{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:22px}.subject-tabs{display:flex;gap:6px;padding:4px;border-radius:14px;background:#eef2f5}.subject-tab{border:0;background:transparent;color:var(--muted);border-radius:10px;padding:10px 22px;font-weight:900;cursor:pointer}.subject-tab.active{background:#fff;color:var(--accent);box-shadow:0 1px 4px rgba(37,50,62,.07)}
.shelf-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.material-card{display:grid;grid-template-columns:64px 1fr auto;align-items:center;gap:16px;min-height:128px;border:1px solid var(--line);border-radius:20px;background:#fff;padding:22px;text-align:left;cursor:pointer;color:var(--text)}.material-card:hover{border-color:#bcc9d2}.material-icon{display:flex;align-items:center;justify-content:center;width:64px;height:64px;border-radius:16px;background:var(--accent-soft);color:var(--accent);font-weight:950;font-size:21px}.material-title{font-size:24px;font-weight:900}.material-meta{margin-top:7px;color:var(--muted);font-size:14px}.material-arrow{font-size:28px;color:var(--accent)}.empty-shelf{border:1px dashed var(--line);border-radius:18px;padding:30px;color:var(--muted);text-align:center}.teacher-toolbar .btn:disabled{opacity:.35}
.page-heading-row{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin:8px 0 16px}.eyebrow{font-size:12px;letter-spacing:.08em;font-weight:900;color:var(--accent);text-transform:uppercase}.page-title{font-size:30px;margin:5px 0 0}.preview-card{padding:22px 24px}.preview-row{padding:15px 2px}.preview-actions{margin-top:20px;justify-content:flex-end}
.room-code-card{padding:24px}.room-topbar{margin-top:2px}.room-code-card .hero-code{color:var(--text)}
.join-card{padding:34px 28px;text-align:center;margin-top:34px}.join-card .code-input{margin:18px 0 22px;border:2px solid var(--line);font-size:48px!important}.join-card .code-input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 4px var(--accent-soft)}
.nickname-card{margin-top:34px;padding:36px 24px}.nickname-card .eyebrow{margin-bottom:14px}.waiting-label{margin-top:22px;color:var(--muted);font-weight:800}.waiting-card{position:relative;margin-top:34px;padding:34px;overflow:hidden}.waiting-card .character-slot{right:12px;bottom:6px;opacity:.65}.waiting-card .waiting-dots{margin-top:16px}
.challenge-card{box-shadow:0 12px 34px rgba(45,63,80,.035)}
.submitted-card{margin-top:50px;padding:38px 24px}.submitted-card .submitted-mark{font-size:32px}
.final-screen{min-height:calc(100vh - 60px);padding:24px 0 46px}.final-screen-title{text-align:center;font-size:clamp(28px,5vw,46px);font-weight:950;letter-spacing:.05em;color:var(--accent);margin:6px 0 10px}.final-screen .final-target{margin-bottom:22px}
@media(max-width:760px){.home-grid,.shelf-grid{grid-template-columns:1fr}.home-screen{padding-top:26px}.home-screen .brand{text-align:left;margin-bottom:24px}.entry-card{min-height:132px}.character-slot{opacity:.45}.teacher-toolbar{align-items:flex-start;flex-direction:column}.teacher-toolbar>.actions{width:100%;justify-content:flex-end}.preview-actions{justify-content:stretch}.preview-actions .btn{flex:1}.page-heading-row{align-items:flex-start}.material-card{grid-template-columns:56px 1fr auto}.material-icon{width:56px;height:56px}}

/* v0.6 買い物チャレンジ */
.shop-list{display:grid;gap:10px;margin:18px auto;max-width:720px}.shop-row{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px 16px;border:1px solid var(--line);border-radius:15px;background:#fff}.shop-row>div:first-child{display:flex;align-items:center;gap:9px;min-width:0}.shop-category{display:inline-flex;align-items:center;border-radius:999px;padding:4px 8px;background:#eef2f5;color:var(--muted);font-size:11px;font-weight:800;white-space:nowrap}.shop-price{font-size:20px;font-weight:950;white-space:nowrap}.shop-budget-box{display:flex;align-items:center;justify-content:space-between;gap:18px;max-width:720px;margin:16px auto;padding:16px 18px;border-radius:16px;background:var(--accent-soft);color:var(--text)}.shop-budget-box span{font-size:14px;font-weight:800;color:var(--accent)}.shop-budget-box strong{font-size:30px;font-weight:950}.shop-budget-box.big strong{font-size:clamp(34px,6vw,52px)}.shop-sale-card{display:flex;align-items:center;justify-content:space-between;gap:18px;max-width:620px;margin:22px auto;padding:24px;border:1px solid var(--line);border-radius:18px;background:#fff}.shop-sale-card strong{font-size:25px}.shop-original{font-size:27px;font-weight:950;margin-top:8px}.sale-badge{display:flex;align-items:center;justify-content:center;min-width:104px;min-height:72px;padding:10px;border-radius:16px;background:var(--accent-soft);color:var(--accent);font-size:24px;font-weight:950}.shop-choices{max-width:720px;margin:14px auto 0}.shop-product-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;margin:18px 0}.shop-product-card{display:flex;flex-direction:column;align-items:flex-start;gap:8px;min-height:122px;padding:14px;border:2px solid var(--line);border-radius:16px;background:#fff;color:var(--text);text-align:left;cursor:pointer}.shop-product-card strong{margin-top:auto;font-size:20px}.shop-product-card.selected{border-color:var(--accent);background:var(--accent-soft);box-shadow:0 0 0 2px rgba(111,143,175,.12)}.shop-product-card:disabled:not(.selected){opacity:.42;cursor:not-allowed}.shop-product-name{font-size:17px;font-weight:900}.shop-select-note{text-align:center;color:var(--muted);font-size:14px;font-weight:750;line-height:1.55;margin-top:10px}.shop-selected-count{text-align:center;margin:14px 0 16px;font-size:17px;color:var(--muted)}.shop-selected-count strong{color:var(--text);font-size:22px}
@media(max-width:760px){.shop-product-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.shop-sale-card{padding:18px}.shop-budget-box strong{font-size:26px}}


/* v0.7 複数先生・複数クラス */
.class-bar{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:-4px 0 16px;padding:12px 14px;border:1px solid var(--line);border-radius:16px;background:#fff}.class-picker{display:flex;align-items:center;gap:10px;min-width:0}.class-picker>span{font-size:12px;font-weight:900;color:var(--muted);white-space:nowrap}.class-picker select{min-height:44px;max-width:320px;border:1px solid var(--line);border-radius:12px;background:#fff;padding:8px 36px 8px 12px;font-weight:900;color:var(--text)}
.class-settings-list{display:grid;gap:12px}.class-setting-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:16px 18px}.class-setting-row.active{border-color:#b6c8d6;background:linear-gradient(180deg,#fff,var(--accent-soft))}.class-setting-row strong{display:block;font-size:21px;margin-top:4px}.class-add-card{margin-top:16px}.class-add-line{display:grid;grid-template-columns:1fr auto;gap:10px}.class-add-line input{min-height:48px;border:1px solid var(--line);border-radius:13px;padding:10px 13px;font-size:17px}
@media(max-width:760px){.class-bar{align-items:stretch;flex-direction:column}.class-picker{justify-content:space-between}.class-picker select{width:100%;max-width:none}.class-setting-row{align-items:flex-start;flex-direction:column}.class-add-line{grid-template-columns:1fr}}

/* v0.8 佐藤先生の家 */
.house-screen{position:relative;min-height:calc(100vh - 70px);padding-top:28px}.house-screen .brand{text-align:center;margin-bottom:28px}.house-screen .brand-title{font-size:clamp(38px,6vw,58px)}
.house-intro{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin:0 auto 24px;max-width:980px;padding:0 2px}.house-intro h2{margin:5px 0 8px;font-size:clamp(25px,4vw,34px)}.house-actions{display:flex;gap:10px;flex-wrap:wrap;justify-content:flex-end}
.teacher-door-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;max-width:980px;margin:0 auto 36px}.teacher-door{min-height:280px;border:1px solid var(--line);border-radius:24px;background:#fff;padding:18px;color:var(--text);cursor:pointer;text-align:left;box-shadow:0 10px 28px rgba(47,62,76,.04)}.teacher-door:hover{border-color:#b8c8d4;transform:translateY(-1px)}.door-number{display:block;font-size:11px;font-weight:900;letter-spacing:.08em;color:var(--muted);margin-bottom:12px}.door-visual{position:relative;display:block;width:124px;height:164px;margin:0 auto 18px;border:7px solid #d7c0a6;border-bottom-width:9px;border-radius:9px 9px 4px 4px;background:linear-gradient(180deg,#a9bfd0,#7f9eb6);box-shadow:inset 0 0 0 2px rgba(255,255,255,.32)}.door-visual:before{content:"";position:absolute;left:13px;right:13px;top:50px;height:3px;background:rgba(255,255,255,.25);box-shadow:0 43px 0 rgba(255,255,255,.18)}.door-knob{position:absolute;right:15px;top:82px;width:10px;height:10px;border-radius:50%;background:#f1d27b;box-shadow:0 0 0 2px rgba(80,70,50,.12)}.door-name{display:block;text-align:center;font-size:21px;font-weight:950}.door-note{display:block;text-align:center;color:var(--accent);font-size:13px;font-weight:850;margin-top:6px}.empty-house{grid-column:1/-1;border:1px dashed var(--line);border-radius:20px;padding:34px;text-align:center;color:var(--muted)}
.public-room-shell{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(280px,.7fr);gap:18px;align-items:stretch}.room-scene{position:relative;min-height:430px;overflow:hidden;border:1px solid var(--line);border-radius:24px;background:#f1eee8;box-shadow:0 12px 34px rgba(45,63,80,.04)}.room-wall{position:absolute;inset:0 0 34% 0;background:linear-gradient(180deg,#e9f0f4,#dde8ee)}.room-floor{position:absolute;left:0;right:0;bottom:0;height:38%;background:repeating-linear-gradient(90deg,#d9bd99 0,#d9bd99 56px,#cfb18b 57px,#cfb18b 60px);transform-origin:bottom}.room-window{position:absolute;left:10%;top:14%;width:30%;height:42%;border:8px solid #fff;background:linear-gradient(#c9e2ef 0 65%,#d6e3d6 65%);box-shadow:0 4px 0 rgba(0,0,0,.05)}.room-poster{position:absolute;right:12%;top:17%;display:flex;align-items:center;justify-content:center;width:110px;height:74px;border:6px solid #e6d9c9;background:#fff;color:#8ea7ba;font-weight:950;letter-spacing:.15em}.room-desk{position:absolute;left:30%;bottom:36%;width:210px;height:72px;border-radius:8px;background:#b6885b;box-shadow:0 12px 0 #8f6a46}.room-desk:before,.room-desk:after{content:"";position:absolute;top:62px;width:18px;height:78px;background:#805d3f}.room-desk:before{left:18px}.room-desk:after{right:18px}.room-chair{position:absolute;left:49%;bottom:8%;width:78px;height:92px;border-radius:18px 18px 8px 8px;background:#7f9eb6;border:8px solid #627d92}.room-shelf-mini{position:absolute;right:9%;bottom:25%;width:100px;height:150px;border:10px solid #a37b55;background:repeating-linear-gradient(0deg,#f2e5d4 0,#f2e5d4 38px,#a37b55 39px,#a37b55 48px)}.public-room-info{display:flex;flex-direction:column;justify-content:center;padding:30px}.public-room-info h2{font-size:30px;margin:6px 0 12px}.public-room-info p{line-height:1.8;color:var(--muted)}
.teacher-room-banner{display:flex;align-items:center;justify-content:space-between;gap:14px;margin:-2px 0 14px;padding:15px 18px;border-radius:18px;background:linear-gradient(135deg,#edf3f7,#fff);border:1px solid var(--line)}.teacher-room-banner strong{font-size:22px;margin-right:12px}.teacher-room-banner span{color:var(--muted);font-size:13px;font-weight:800}
@media(max-width:860px){.teacher-door-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.public-room-shell{grid-template-columns:1fr}.room-scene{min-height:360px}.house-intro{align-items:flex-start;flex-direction:column}.house-actions{justify-content:flex-start}}
@media(max-width:560px){.teacher-door-grid{grid-template-columns:1fr}.teacher-door{min-height:245px}.door-visual{width:105px;height:140px}.house-actions{width:100%}.house-actions .btn{flex:1}.teacher-room-banner{align-items:flex-start}.teacher-room-banner>div{display:flex;flex-direction:column}.teacher-room-banner strong{margin:2px 0}.room-scene{min-height:300px}.room-desk{left:20%;width:170px}.room-chair{left:53%}}

/* v0.9 部屋育成 MVP — くすみブルー×木目×白 */
.room-scene-v09{position:relative;min-height:500px;overflow:hidden;border:1px solid #cfd9e1;border-radius:26px;background:#edf2f5;box-shadow:0 18px 42px rgba(55,72,88,.08);touch-action:none;isolation:isolate}
.room-scene-v09 .room-wall{position:absolute;inset:0 0 35% 0;background:linear-gradient(180deg,#eaf0f4 0%,#dfe9ef 100%);z-index:1}
.room-scene-v09 .room-wall:after{content:"";position:absolute;left:0;right:0;bottom:-6px;height:12px;background:#f6f7f8;box-shadow:0 2px 0 rgba(92,112,128,.08)}
.room-scene-v09 .room-floor{position:absolute;left:0;right:0;bottom:0;height:39%;background:linear-gradient(180deg,#d8c2a7,#cdb18e);z-index:1;overflow:hidden}
.room-scene-v09 .room-floor:before{content:"";position:absolute;inset:0;background:repeating-linear-gradient(90deg,transparent 0 72px,rgba(114,86,58,.13) 73px 75px)}
.room-scene-v09 .room-floor .floor-line{position:absolute;left:-10%;width:120%;height:2px;background:rgba(116,88,58,.1);transform:rotate(-4deg)}
.room-scene-v09 .room-floor .f1{top:28%}.room-scene-v09 .room-floor .f2{top:58%}.room-scene-v09 .room-floor .f3{top:82%}
.room-scene-v09 .room-window{position:absolute;left:9%;top:13%;width:29%;height:43%;border:8px solid #fff;border-radius:5px;background:linear-gradient(#bcd8e7 0 67%,#cfdccf 67%);box-shadow:0 5px 0 rgba(59,76,91,.06);overflow:hidden}
.room-scene-v09 .room-window:before,.room-scene-v09 .room-window:after{content:"";position:absolute;background:rgba(255,255,255,.75)}
.room-scene-v09 .room-window:before{width:5px;top:0;bottom:0;left:49%}.room-scene-v09 .room-window:after{height:5px;left:0;right:0;top:52%}
.room-scene-v09 .cloud{position:absolute;width:31px;height:12px;border-radius:999px;background:rgba(255,255,255,.62)}.room-scene-v09 .cloud:before,.room-scene-v09 .cloud:after{content:"";position:absolute;border-radius:50%;background:inherit}.room-scene-v09 .cloud:before{width:15px;height:15px;left:5px;top:-7px}.room-scene-v09 .cloud:after{width:20px;height:20px;right:3px;top:-10px}.room-scene-v09 .cloud.c1{left:15%;top:24%}.room-scene-v09 .cloud.c2{right:14%;top:17%;transform:scale(.72)}
.room-scene-v09 .room-poster{position:absolute;right:11%;top:14%;width:116px;height:78px;border:7px solid #e1d4c4;border-radius:4px;background:#fff;color:#7b9ab1;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:950;letter-spacing:.12em;box-shadow:0 4px 0 rgba(69,81,91,.05)}
.base-desk{position:absolute;left:31%;top:47%;width:210px;height:115px;z-index:8}.base-desk .desk-top{position:absolute;left:0;top:0;width:100%;height:36px;border-radius:8px;background:#ae835e;box-shadow:inset 0 -6px 0 rgba(92,63,40,.12)}.base-desk .desk-leg{position:absolute;top:28px;width:18px;height:87px;border-radius:0 0 5px 5px;background:#8d6748}.base-desk .desk-leg.l1{left:18px}.base-desk .desk-leg.l2{right:18px}.base-desk .desk-mug{position:absolute;right:30px;top:-17px;width:25px;height:26px;border:4px solid #f5f7f8;border-radius:3px 3px 8px 8px;background:#7f9db4}.base-desk .desk-mug:after{content:"";position:absolute;right:-12px;top:4px;width:9px;height:10px;border:3px solid #f5f7f8;border-left:0;border-radius:0 8px 8px 0}
.base-chair{position:absolute;left:50%;top:63%;width:76px;height:98px;z-index:7}.base-chair:before{content:"";position:absolute;left:8px;top:0;width:60px;height:60px;border:8px solid #5f7f96;border-radius:18px 18px 12px 12px;background:#7899b0}.base-chair span{position:absolute;left:19px;top:58px;width:38px;height:35px;border-radius:8px;background:#7899b0;box-shadow:-10px 33px 0 -7px #5f6c73,10px 33px 0 -7px #5f6c73}
.base-shelf{position:absolute;right:8%;top:42%;width:98px;height:150px;z-index:6;border:9px solid #9d7654;border-radius:4px;background:#e7d7c2;box-shadow:inset 0 -42px 0 #dfccb4,inset 0 -49px 0 #9d7654,inset 0 -92px 0 #e7d7c2,inset 0 -99px 0 #9d7654}.base-shelf span,.base-shelf i{position:absolute;bottom:10px;width:12px;height:31px;border-radius:2px;background:#6f8fa9}.base-shelf span{left:15px;box-shadow:15px 3px 0 #d59a83,31px -3px 0 #8cab88}.base-shelf i{right:13px;height:26px;background:#d7b66b}
.room-edit-note{position:absolute;left:50%;bottom:12px;transform:translateX(-50%);z-index:999;padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.9);border:1px solid #d5dee4;color:#6f8090;font-size:12px;font-weight:850;white-space:nowrap;pointer-events:none}
.room-public-stats{display:flex;gap:8px;flex-wrap:wrap;margin:8px 0 16px}.room-public-stats span,.wallet-pill{display:inline-flex;align-items:center;gap:6px;border:1px solid #d5dfe6;background:#f5f8fa;border-radius:999px;padding:9px 13px;font-weight:900;color:#587895}.wallet-pill{font-size:20px;padding:12px 18px;background:#fff;box-shadow:0 7px 20px rgba(53,70,85,.06)}
.room-editor-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin:6px 0 18px}.room-editor-head h2{margin:4px 0 5px;font-size:32px}.room-editor-layout{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(280px,.65fr);gap:18px;align-items:start}.room-editor-actions{display:flex;gap:10px;margin-top:12px;flex-wrap:wrap}.furniture-shop{padding:18px;max-height:620px;overflow:auto;position:sticky;top:12px}.shop-title-row{display:flex;align-items:flex-start;justify-content:space-between;gap:10px;margin-bottom:12px}.shop-title-row h3{font-size:22px;margin:3px 0 0}.furniture-shop-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.furniture-shop-card{min-height:142px;border:1px solid #d6dfe5;border-radius:16px;background:#fff;padding:11px;color:var(--text);text-align:center;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;transition:.15s ease}.furniture-shop-card:hover:not(:disabled){border-color:#9eb5c5;transform:translateY(-1px);box-shadow:0 7px 18px rgba(55,73,88,.06)}.furniture-shop-card.owned{background:#f4f7f8;opacity:.68}.furniture-shop-card:disabled{cursor:default}.shop-art-wrap{height:65px;width:90px;display:flex;align-items:center;justify-content:center;position:relative;transform:scale(.72)}.furniture-shop-name{font-size:13px;font-weight:950}.furniture-shop-price{font-size:12px;font-weight:900;color:#64849a}
.placed-furniture{position:absolute;transform:translate(-50%,-50%);width:100px;height:100px;z-index:10;display:flex;align-items:center;justify-content:center;user-select:none;-webkit-user-select:none}.placed-furniture.editable{cursor:grab;touch-action:none}.placed-furniture.editable.dragging{cursor:grabbing;filter:drop-shadow(0 12px 10px rgba(52,68,82,.22));transform:translate(-50%,-50%) scale(1.04)}.drag-hint{position:absolute;left:50%;top:100%;transform:translate(-50%,-4px);font-size:9px;font-weight:900;color:#607786;background:rgba(255,255,255,.9);border:1px solid #d9e1e6;border-radius:999px;padding:2px 6px;opacity:0;transition:.15s}.placed-furniture.editable:hover .drag-hint,.placed-furniture.dragging .drag-hint{opacity:1}
.furniture-art{position:relative;display:block;width:100px;height:100px;filter:drop-shadow(0 5px 2px rgba(66,73,78,.13))}
/* plant */
.art-plant .plant-pot{position:absolute;left:36px;bottom:11px;width:31px;height:34px;border-radius:4px 4px 12px 12px;background:#c68f73;border-top:6px solid #aa735a}.art-plant .plant-leaf{position:absolute;left:48px;bottom:40px;width:19px;height:42px;border-radius:90% 12% 90% 12%;background:#789d7a;transform-origin:bottom center}.art-plant .l1{transform:rotate(-37deg);left:39px}.art-plant .l2{transform:rotate(7deg);height:50px;background:#6d926f}.art-plant .l3{transform:rotate(39deg);left:54px;height:39px;background:#8baa82}
/* rug */
.placed-furniture.furn-rug{width:170px;height:100px}.art-rug{width:170px;height:100px;filter:none}.art-rug:before{content:"";position:absolute;left:8px;right:8px;top:20px;bottom:20px;border-radius:48%;background:#96adbd;box-shadow:inset 0 0 0 7px rgba(255,255,255,.2)}.art-rug .rug-inner{position:absolute;left:34px;right:34px;top:36px;bottom:36px;border:2px dashed rgba(255,255,255,.55);border-radius:48%}
/* lamp */
.art-lamp .lamp-shade{position:absolute;left:28px;top:12px;width:47px;height:32px;clip-path:polygon(18% 0,82% 0,100% 100%,0 100%);background:#d9c185}.art-lamp .lamp-stem{position:absolute;left:49px;top:40px;width:6px;height:45px;border-radius:5px;background:#647987}.art-lamp .lamp-base{position:absolute;left:33px;bottom:10px;width:39px;height:9px;border-radius:50%;background:#647987}
/* plush */
.art-plush .plush-ear{position:absolute;top:17px;width:26px;height:26px;border-radius:50%;background:#b58b72}.art-plush .e1{left:24px}.art-plush .e2{right:24px}.art-plush .plush-head{position:absolute;left:28px;top:24px;width:48px;height:46px;border-radius:45% 45% 50% 50%;background:#c8a087}.art-plush .plush-head:before,.art-plush .plush-head:after{content:"";position:absolute;top:17px;width:5px;height:5px;border-radius:50%;background:#5a504b}.art-plush .plush-head:before{left:13px}.art-plush .plush-head:after{right:13px}.art-plush .plush-head i{position:absolute;left:20px;top:25px;width:8px;height:6px;border-radius:50%;background:#6b5549}.art-plush .plush-body{position:absolute;left:31px;bottom:7px;width:42px;height:40px;border-radius:48% 48% 42% 42%;background:#b98f75}
/* bookshelf */
.art-bookshelf:before{content:"";position:absolute;left:20px;top:8px;width:64px;height:84px;border:8px solid #9e7652;border-radius:3px;background:#e3d2bc;box-shadow:inset 0 -28px 0 #ddcab1}.art-bookshelf .shelf-line{position:absolute;left:27px;width:50px;height:6px;background:#9e7652}.art-bookshelf .s1{top:38px}.art-bookshelf .s2{top:65px}.art-bookshelf .book{position:absolute;width:8px;border-radius:2px 2px 0 0}.art-bookshelf .b1{left:32px;top:19px;height:19px;background:#7999b0}.art-bookshelf .b2{left:42px;top:17px;height:21px;background:#d28f7f}.art-bookshelf .b3{left:53px;top:46px;height:19px;background:#8eaa86}.art-bookshelf .b4{left:64px;top:44px;height:21px;background:#d5b266}
/* sofa */
.placed-furniture.furn-sofa{width:150px;height:105px}.art-sofa{width:150px;height:105px}.art-sofa .sofa-back{position:absolute;left:22px;right:22px;top:20px;height:49px;border-radius:24px 24px 9px 9px;background:#7596ad}.art-sofa .sofa-seat{position:absolute;left:21px;right:21px;top:56px;height:31px;border-radius:8px 8px 16px 16px;background:#86a5ba;box-shadow:inset 0 5px rgba(255,255,255,.12)}.art-sofa .sofa-arm{position:absolute;top:47px;width:24px;height:40px;border-radius:12px;background:#68879d}.art-sofa .a1{left:8px}.art-sofa .a2{right:8px}.art-sofa .sofa-leg{position:absolute;bottom:6px;width:9px;height:13px;border-radius:0 0 4px 4px;background:#765b46}.art-sofa .g1{left:32px}.art-sofa .g2{right:32px}
/* coffee */
.art-coffee .coffee-body{position:absolute;left:27px;top:18px;width:52px;height:55px;border-radius:8px;background:#6d8493;box-shadow:inset 0 -10px #607886}.art-coffee .coffee-top{position:absolute;left:31px;top:23px;width:44px;height:11px;border-radius:4px;background:#b7c5ce}.art-coffee .coffee-spout{position:absolute;left:50px;top:46px;width:20px;height:7px;background:#c9d2d8}.art-coffee .coffee-cup{position:absolute;left:43px;bottom:10px;width:28px;height:22px;border-radius:3px 3px 9px 9px;background:#f6f7f7;border:3px solid #d7dee2}
/* aquarium */
.placed-furniture.furn-aquarium{width:130px;height:105px}.art-aquarium{width:130px;height:105px}.art-aquarium:before{content:"";position:absolute;left:13px;right:13px;top:13px;height:65px;border:6px solid #e8eef1;border-radius:7px;background:#92c1cf;box-shadow:inset 0 -18px #c6b493}.art-aquarium .tank-water{position:absolute;left:23px;right:23px;top:24px;height:4px;background:rgba(255,255,255,.55)}.art-aquarium .tank-fish{position:absolute;left:47px;top:44px;color:#d68d69;font-size:17px;font-weight:900}.art-aquarium .tank-plant{position:absolute;left:29px;top:47px;width:5px;height:22px;background:#648f76;box-shadow:7px -6px 0 #729e7e;transform:rotate(-7deg)}.art-aquarium .tank-base{position:absolute;left:23px;right:23px;bottom:10px;height:18px;border-radius:4px;background:#7d674f}
/* tv */
.placed-furniture.furn-tv{width:145px;height:115px}.art-tv{width:145px;height:115px}.art-tv .tv-screen{position:absolute;left:13px;right:13px;top:11px;height:72px;border:8px solid #4f5e66;border-radius:8px;background:linear-gradient(145deg,#8fadc0,#718fa3);color:rgba(255,255,255,.55);font-size:10px;font-weight:950;display:flex;align-items:center;justify-content:center;letter-spacing:.14em}.art-tv .tv-neck{position:absolute;left:68px;top:84px;width:10px;height:15px;background:#535f65}.art-tv .tv-base{position:absolute;left:45px;bottom:7px;width:56px;height:8px;border-radius:50%;background:#535f65}
/* gold statue */
.art-gold-statue .statue-head{position:absolute;left:40px;top:8px;width:25px;height:28px;border-radius:50%;background:#ddb94f}.art-gold-statue .statue-body{position:absolute;left:36px;top:34px;width:33px;height:39px;border-radius:11px 11px 7px 7px;background:#cfaa3d}.art-gold-statue .statue-arm{position:absolute;top:39px;width:10px;height:37px;border-radius:6px;background:#d8b347}.art-gold-statue .a1{left:27px;transform:rotate(13deg)}.art-gold-statue .a2{right:26px;transform:rotate(-13deg)}.art-gold-statue .statue-pedestal{position:absolute;left:28px;bottom:8px;width:49px;height:20px;border-radius:4px;background:#9e7a29;box-shadow:0 -5px #ba9133}
.reward-preview{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:12px;padding:13px 17px;border:1px solid #d6e0e6;border-radius:16px;background:linear-gradient(135deg,#f7fafb,#edf3f6)}.reward-preview>div:first-child{display:flex;flex-direction:column}.reward-preview strong{font-size:24px;color:#57768d}.reward-preview>div:last-child{display:flex;gap:8px;flex-wrap:wrap}.reward-preview>div:last-child span{font-size:12px;font-weight:900;color:#6d8190;background:#fff;border:1px solid #dbe3e8;border-radius:999px;padding:6px 9px}.reward-receipt{margin-top:38px;padding:35px 26px}.reward-coin-burst{font-size:52px;margin-bottom:8px}.reward-receipt h2{font-size:28px}.reward-receipt-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:22px 0}.reward-receipt-grid>div{border:1px solid #d9e1e6;background:#f7f9fa;border-radius:15px;padding:14px}.reward-receipt-grid span{display:block;font-size:11px;font-weight:900;color:var(--muted);margin-bottom:5px}.reward-receipt-grid strong{font-size:21px}
@media(max-width:920px){.room-editor-layout{grid-template-columns:1fr}.furniture-shop{position:static;max-height:none}.furniture-shop-grid{grid-template-columns:repeat(5,minmax(0,1fr))}.room-scene-v09{min-height:460px}}
@media(max-width:700px){.room-scene-v09{min-height:380px}.base-desk{transform:scale(.82);transform-origin:left top;left:27%}.base-chair{transform:scale(.8);left:51%}.base-shelf{transform:scale(.8);transform-origin:right top}.furniture-shop-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.room-editor-head{align-items:flex-start}.reward-preview{align-items:flex-start;flex-direction:column}.reward-receipt-grid{grid-template-columns:1fr 1fr 1fr}.placed-furniture{transform:translate(-50%,-50%) scale(.82)}.placed-furniture.editable.dragging{transform:translate(-50%,-50%) scale(.88)}.placed-furniture.furn-sofa{transform:translate(-50%,-50%) scale(.74)}.placed-furniture.furn-rug{transform:translate(-50%,-50%) scale(.78)}}

/* v0.9.1 — spacious game-room visual */
.room-scene-v091{
  min-height:560px;
  border-radius:30px;
  background:#eaf0f4;
  box-shadow:0 18px 46px rgba(55,72,88,.08);
}
.room-scene-v091 .room-wall{
  inset:0 0 43% 0;
  background:linear-gradient(180deg,#edf3f6 0%,#e3edf2 100%);
}
.room-scene-v091 .room-wall:before{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:18px;
  background:linear-gradient(180deg,#f7f8f9,#eef1f3);
  box-shadow:0 2px 0 rgba(82,101,116,.07);
}
.room-scene-v091 .room-wall:after{
  bottom:-4px;
  height:8px;
  background:#d8e1e7;
  box-shadow:none;
}
.room-scene-v091 .room-window{
  left:7%;
  top:11%;
  width:25%;
  height:39%;
  max-width:210px;
  border:8px solid rgba(255,255,255,.96);
  border-radius:10px;
  background:linear-gradient(#bdd8e7 0 64%,#d5e0d0 64%);
  box-shadow:0 8px 0 rgba(64,83,98,.045),0 0 0 1px rgba(107,132,149,.04);
}
.room-scene-v091 .room-floor{
  height:47%;
  background:linear-gradient(180deg,#dcc7aa 0%,#cdb18d 100%);
  perspective:900px;
}
.room-scene-v091 .room-floor:before{
  background:repeating-linear-gradient(90deg,transparent 0 98px,rgba(114,86,58,.10) 99px 101px);
  opacity:.7;
}
.room-scene-v091 .room-floor:after{
  content:"";
  position:absolute;
  left:-8%;right:-8%;top:-2px;height:100%;
  background:linear-gradient(90deg,rgba(255,255,255,.11),transparent 18%,transparent 82%,rgba(101,74,49,.035));
  pointer-events:none;
}
.room-scene-v091 .room-floor .floor-line{
  left:-12%;
  width:124%;
  height:2px;
  background:rgba(103,77,53,.09);
  transform:rotate(-2.5deg);
}
.room-scene-v091 .room-floor .f1{top:24%}
.room-scene-v091 .room-floor .f2{top:52%}
.room-scene-v091 .room-floor .f3{top:80%}
.room-scene-v091 .floor-depth{
  position:absolute;
  top:-6%;bottom:-6%;
  width:2px;
  background:linear-gradient(180deg,rgba(105,80,57,.04),rgba(105,80,57,.11));
  transform-origin:top center;
}
.room-scene-v091 .floor-depth.d1{left:18%;transform:rotate(6deg)}
.room-scene-v091 .floor-depth.d2{left:38%;transform:rotate(2deg)}
.room-scene-v091 .floor-depth.d3{left:62%;transform:rotate(-2deg)}
.room-scene-v091 .floor-depth.d4{left:82%;transform:rotate(-6deg)}
.room-scene-v091 .room-poster,
.room-scene-v091 .base-desk,
.room-scene-v091 .base-chair,
.room-scene-v091 .base-shelf{display:none!important}
.room-scene-v091 .placed-furniture{
  transform:translate(-50%,-50%) scale(.9);
}
.room-scene-v091 .placed-furniture.editable.dragging{
  transform:translate(-50%,-50%) scale(.96);
}
@media(max-width:920px){
  .room-scene-v091{min-height:540px}
}
@media(max-width:700px){
  .room-scene-v091{min-height:500px;border-radius:28px}
  .room-scene-v091 .room-wall{inset:0 0 41% 0}
  .room-scene-v091 .room-floor{height:45%}
  .room-scene-v091 .room-window{left:8%;top:10%;width:27%;height:36%;border-width:7px}
  .room-scene-v091 .placed-furniture{transform:translate(-50%,-50%) scale(.76)}
  .room-scene-v091 .placed-furniture.editable.dragging{transform:translate(-50%,-50%) scale(.82)}
  .room-scene-v091 .placed-furniture.furn-sofa{transform:translate(-50%,-50%) scale(.70)}
  .room-scene-v091 .placed-furniture.furn-rug{transform:translate(-50%,-50%) scale(.73)}
}

/* v0.9.2 iPad-first isometric room */
.room-scene-v092{
  width:100%;
  min-height:0;
  aspect-ratio:16/10;
  border-radius:28px;
  background:linear-gradient(180deg,#f6f1e8 0%,#efe7d9 100%);
  box-shadow:0 18px 46px rgba(55,72,88,.09);
  overflow:hidden;
  isolation:isolate;
}
.room-scene-v092 .room-wall{display:none!important}
.room-scene-v092 .iso-back-wall{
  position:absolute;
  left:14%;right:11%;top:8%;height:24%;
  z-index:2;
  background:linear-gradient(180deg,#dce8ee 0%,#cedde4 100%);
  border:1px solid rgba(91,115,132,.12);
  border-bottom:8px solid #b79673;
  transform:skewY(-2.8deg);
  transform-origin:left bottom;
  box-shadow:inset 0 -1px 0 rgba(255,255,255,.35);
}
.room-scene-v092 .iso-left-wall{
  position:absolute;
  left:3.2%;top:18.3%;width:12.2%;height:45.8%;
  z-index:2;
  clip-path:polygon(100% 0,100% 31%,0 100%,0 43%);
  background:linear-gradient(135deg,#cbdbe2 0%,#b9cbd4 100%);
  border-left:1px solid rgba(85,105,120,.10);
}
.room-scene-v092 .iso-back-wall:after{
  content:"";position:absolute;left:0;right:0;bottom:-11px;height:5px;
  background:#9f7c5a;opacity:.30;
}
.room-scene-v092 .room-window{
  left:9%;top:17%;width:20%;height:57%;
  max-width:none;
  border:6px solid rgba(255,255,255,.97);
  border-radius:6px;
  background:linear-gradient(#b8d6e6 0 66%,#d3dfcf 66%);
  box-shadow:0 5px 0 rgba(68,84,95,.05);
  transform:skewY(2.8deg);
}
.room-scene-v092 .room-floor.iso-floor{
  position:absolute;
  left:3%;right:3%;top:30%;bottom:5%;height:auto;
  z-index:1;
  clip-path:polygon(13% 0,87% 0,100% 100%,0 100%);
  background:
    linear-gradient(180deg,rgba(255,255,255,.09),rgba(97,69,43,.045)),
    linear-gradient(180deg,#d6b78f 0%,#caa77d 100%);
  overflow:hidden;
}
.room-scene-v092 .room-floor.iso-floor:before{
  content:"";position:absolute;inset:-8% -12%;opacity:.58;
  background:repeating-linear-gradient(90deg,transparent 0 12.3%,rgba(109,79,52,.15) 12.45% 12.7%);
  transform:perspective(420px) rotateX(10deg) scaleX(.88);
  transform-origin:50% 0;
}
.room-scene-v092 .room-floor.iso-floor:after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(255,255,255,.10),transparent 18%,transparent 82%,rgba(82,59,39,.035));
  pointer-events:none;
}
.room-scene-v092 .room-floor .floor-line{
  position:absolute;left:-5%;width:110%;height:2px;
  background:rgba(105,76,50,.13);transform:none;
}
.room-scene-v092 .room-floor .f1{top:19%}
.room-scene-v092 .room-floor .f2{top:40%}
.room-scene-v092 .room-floor .f3{top:63%}
.room-scene-v092 .room-floor .f4{top:83%}
.room-scene-v092 .floor-depth{
  position:absolute;top:-10%;height:125%;width:2px;
  background:linear-gradient(180deg,rgba(104,75,50,.03),rgba(104,75,50,.15));
  transform-origin:top center;
}
.room-scene-v092 .floor-depth.d1{left:18%;transform:rotate(9deg)}
.room-scene-v092 .floor-depth.d2{left:34%;transform:rotate(5deg)}
.room-scene-v092 .floor-depth.d3{left:50%;transform:rotate(0deg)}
.room-scene-v092 .floor-depth.d4{left:66%;transform:rotate(-5deg)}
.room-scene-v092 .floor-depth.d5{left:82%;transform:rotate(-9deg)}
.room-scene-v092 .placed-furniture{
  transform:translate(-50%,-78%) scale(.88);
  transform-origin:center bottom;
}
.room-scene-v092 .placed-furniture.editable.dragging{
  transform:translate(-50%,-78%) scale(.94);
}
.room-scene-v092 .placed-furniture.furn-rug{transform:translate(-50%,-56%) scale(.82)}
.room-scene-v092 .placed-furniture.furn-sofa{transform:translate(-50%,-75%) scale(.82)}
.room-scene-v092 .room-edit-note{bottom:10px}
.room-overview-shell{grid-template-columns:1fr!important;gap:16px}
.room-overview-shell .public-room-info{
  display:grid;grid-template-columns:minmax(0,1fr) auto;grid-template-areas:"eyebrow stats" "title stats" "desc actions";
  align-items:center;column-gap:24px;row-gap:6px;padding:22px 26px;
}
.room-overview-shell .public-room-info .eyebrow{grid-area:eyebrow}
.room-overview-shell .public-room-info h2{grid-area:title;margin:0;font-size:30px}
.room-overview-shell .public-room-info .room-public-stats{grid-area:stats;align-self:center}
.room-overview-shell .public-room-info p{grid-area:desc;margin:4px 0 0}
.room-overview-shell .public-room-info .actions{grid-area:actions;justify-content:flex-end}
@media(max-width:1100px){
  .room-editor-layout{grid-template-columns:1fr}
  .furniture-shop{position:static;max-height:none}
  .furniture-shop-grid{grid-template-columns:repeat(5,minmax(0,1fr))}
}
@media(min-width:760px) and (orientation:landscape){
  .room-scene-v092{aspect-ratio:16/9.4}
  .room-editor-head{margin-top:6px}
}
@media(max-width:760px){
  .room-scene-v092{aspect-ratio:16/10;min-height:0;border-radius:20px}
  .room-overview-shell .public-room-info{display:flex;align-items:flex-start;padding:22px;gap:10px}
  .room-overview-shell .public-room-info .actions{justify-content:flex-start}
  .room-scene-v092 .placed-furniture{transform:translate(-50%,-78%) scale(.66)}
  .room-scene-v092 .placed-furniture.editable.dragging{transform:translate(-50%,-78%) scale(.72)}
  .room-scene-v092 .placed-furniture.furn-sofa{transform:translate(-50%,-75%) scale(.62)}
  .room-scene-v092 .placed-furniture.furn-rug{transform:translate(-50%,-56%) scale(.64)}
  .furniture-shop-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}


/* v0.9.3 — 区画拡張型アイソメ・マイルーム */
.room-scene-v093{
  position:relative;width:100%;aspect-ratio:16/9;min-height:0!important;overflow:hidden;
  border:1px solid #dfd9ce;border-radius:30px;
  background:
    radial-gradient(circle at 12% 20%,rgba(255,255,255,.52) 0 2px,transparent 3px),
    linear-gradient(145deg,#f8ead7 0%,#f7e5cf 55%,#f4dcc1 100%);
  box-shadow:0 20px 45px rgba(69,72,75,.10);isolation:isolate;touch-action:none;
}
.room-scene-v093:before{content:"";position:absolute;inset:0;background-image:linear-gradient(45deg,rgba(185,145,102,.045) 25%,transparent 25%,transparent 75%,rgba(185,145,102,.045) 75%),linear-gradient(45deg,rgba(185,145,102,.045) 25%,transparent 25%,transparent 75%,rgba(185,145,102,.045) 75%);background-size:86px 86px;background-position:0 0,43px 43px;z-index:0}
.room-map-sky{position:absolute;inset:0;z-index:0;pointer-events:none}.room-map-sky span{position:absolute;border-radius:50%;background:rgba(255,255,255,.22);filter:blur(1px)}.room-map-sky span:nth-child(1){width:160px;height:80px;left:8%;top:9%}.room-map-sky span:nth-child(2){width:210px;height:100px;right:9%;top:12%}.room-map-sky span:nth-child(3){width:130px;height:65px;left:45%;bottom:6%}
.room-map-title{position:absolute;left:24px;top:18px;z-index:80;padding:10px 15px;border-radius:999px;background:rgba(255,255,255,.86);border:1px solid rgba(164,137,105,.18);font-size:13px;font-weight:950;color:#6f8190;box-shadow:0 5px 16px rgba(82,71,59,.06)}
.tile-map-stage{position:absolute;inset:0;z-index:2}
.room-tile{position:absolute;width:38%;height:30%;transform:translate(-50%,-50%);z-index:5;transition:.22s ease;overflow:visible}
.room-tile .tile-floor{position:absolute;inset:0;clip-path:polygon(50% 0,100% 50%,50% 100%,0 50%);background:linear-gradient(145deg,#d6c0a0,#c7aa83);filter:drop-shadow(0 8px 5px rgba(88,64,38,.14));transition:.2s ease}
.room-tile.unlocked .tile-floor{background:linear-gradient(145deg,#d7c09e 0%,#caa981 100%)}
.room-tile.unlocked .tile-floor:after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(0deg,transparent 0 28px,rgba(126,91,57,.10) 29px 31px),repeating-linear-gradient(90deg,transparent 0 46px,rgba(126,91,57,.08) 47px 49px);mix-blend-mode:multiply;opacity:.75}
.room-tile.locked .tile-floor{background:linear-gradient(145deg,rgba(221,209,190,.56),rgba(196,178,153,.55));filter:drop-shadow(0 4px 3px rgba(88,64,38,.08));opacity:.72}
.room-tile.selected .tile-floor{filter:drop-shadow(0 9px 7px rgba(79,116,143,.25)) brightness(1.04)}
.room-tile.selected:after{content:"";position:absolute;inset:-4px;clip-path:polygon(50% 0,100% 50%,50% 100%,0 50%);background:#6f92ac;z-index:-1;opacity:.55}
.room-tile.unlockable{cursor:pointer}.room-tile.unlockable .tile-floor{opacity:.9}
.tile-number{position:absolute;left:50%;top:83%;transform:translate(-50%,-50%);z-index:30;padding:4px 8px;border-radius:999px;background:rgba(255,255,255,.74);border:1px solid rgba(116,93,68,.13);font-size:10px;font-weight:900;color:#766b60;pointer-events:none}
.tile-lock{position:absolute;left:50%;top:51%;transform:translate(-50%,-50%);z-index:50;text-align:center;min-width:116px;color:#72685f;pointer-events:auto}
.tile-lock>span{display:block;font-size:12px;font-weight:950}.tile-lock small{display:block;font-size:9px;margin-top:2px;color:#968b7f;white-space:nowrap}
.tile-lock button{border:1px solid rgba(132,91,67,.16);border-radius:14px;background:rgba(255,255,255,.92);padding:8px 12px;color:#765f50;box-shadow:0 7px 18px rgba(93,67,43,.10);font:inherit;cursor:pointer}.tile-lock button span{display:block;font-size:11px;font-weight:950}.tile-lock button strong{display:block;font-size:13px;margin-top:2px;color:#9a654a}
.rope-post{position:absolute;width:10px;height:10px;border-radius:50%;background:#e8edf0;border:2px solid #8d9ba4;z-index:25;box-shadow:0 7px 0 -3px #8d9ba4;pointer-events:none}.rp1{left:49%;top:-2%}.rp2{right:-1%;top:48%}.rp3{left:49%;bottom:-2%}.rp4{left:-1%;top:48%}
.tile-wall{position:absolute;z-index:18;background:linear-gradient(#9eb2c1,#8299aa);border:2px solid rgba(67,84,98,.25);box-shadow:0 5px 0 rgba(69,78,86,.10);pointer-events:none}.edge-north{width:55%;height:12%;left:13%;top:4%;transform:rotate(-26.5deg) skewX(18deg);transform-origin:left center;border-radius:5px}.edge-west{width:55%;height:12%;left:-6%;top:47%;transform:rotate(26.5deg) skewX(-18deg);transform-origin:left center;border-radius:5px}
.room-tile .placed-furniture{z-index:35;transform:translate(-50%,-72%) scale(.66)}.room-tile .placed-furniture.furn-rug{transform:translate(-50%,-50%) scale(.56)}.room-tile .placed-furniture.furn-sofa{transform:translate(-50%,-72%) scale(.62)}.room-tile .placed-furniture.editable.dragging{transform:translate(-50%,-72%) scale(.72);filter:drop-shadow(0 12px 9px rgba(52,68,82,.25))}
.room-scene-v093 .room-edit-note{position:absolute;left:50%;bottom:12px;transform:translateX(-50%);z-index:100;padding:7px 11px;border-radius:999px;background:rgba(255,255,255,.90);border:1px solid #e1d8ca;color:#756d64;font-size:11px;font-weight:850;white-space:nowrap;pointer-events:none}
.room-head-stats{display:flex;gap:9px;align-items:center;flex-wrap:wrap;justify-content:flex-end}.area-pill{display:inline-flex;align-items:center;gap:6px;border:1px solid #d5dfe6;background:#fff;border-radius:999px;padding:12px 18px;font-size:16px;font-weight:850;color:#64849a;box-shadow:0 7px 20px rgba(53,70,85,.05)}.area-pill strong{font-size:20px}
.room-editor-layout{grid-template-columns:1fr}.furniture-shop{position:static;max-height:none}.furniture-shop-grid{grid-template-columns:repeat(6,minmax(0,1fr))}.furniture-shop-card{min-height:132px}
.art-vending .vending-sign{position:absolute;left:25px;top:8px;width:55px;height:18px;border-radius:4px;background:#f3a4b1;color:#fff;font-size:8px;font-weight:950;display:flex;align-items:center;justify-content:center}.art-vending .vending-window{position:absolute;left:25px;top:28px;width:55px;height:42px;border:5px solid #c96f82;border-radius:5px;background:linear-gradient(#eaf4f7,#cfe1e6)}.art-vending .vending-buttons{position:absolute;left:33px;top:38px;width:39px;height:4px;background:#f4c66f;box-shadow:0 10px #85abc2,0 20px #f08d75}.art-vending .vending-slot{position:absolute;left:34px;bottom:12px;width:38px;height:14px;border-radius:3px;background:#795e68}.art-vending:before{content:"";position:absolute;left:20px;top:4px;width:65px;height:85px;border-radius:8px;background:#d68192;z-index:-1;box-shadow:inset -8px 0 rgba(112,61,74,.13)}
.art-cafe-table .cafe-top{position:absolute;left:20px;top:27px;width:66px;height:36px;border-radius:50%;background:#8db4b5;border:6px solid #71999a}.art-cafe-table .cafe-leg{position:absolute;left:50px;top:58px;width:8px;height:31px;background:#765d4a}.art-cafe-table .cafe-cup{position:absolute;left:43px;top:34px;font-size:18px}.art-cafe-table .cafe-chair{position:absolute;top:57px;width:25px;height:23px;border-radius:7px;background:#8aa8bd}.art-cafe-table .c1{left:4px}.art-cafe-table .c2{right:4px}
.art-gacha .gacha-dome{position:absolute;left:26px;top:4px;width:55px;height:48px;border-radius:50% 50% 35% 35%;background:#d8eef1;border:5px solid #b5cdd1;overflow:hidden}.art-gacha .gacha-dome i{position:absolute;left:10px;top:17px;width:10px;height:10px;border-radius:50%;background:#f2a45c;box-shadow:13px -4px #8bb2d2,27px 3px #e98aa2,8px 14px #9dc47e,24px 15px #e2c95c}.art-gacha .gacha-body{position:absolute;left:28px;top:47px;width:51px;height:36px;border-radius:5px;background:#e993a4;border:4px solid #c97083}.art-gacha .gacha-body i{position:absolute;left:18px;top:9px;width:12px;height:12px;border-radius:50%;background:#fff;border:3px solid #8e7180}.art-gacha .gacha-base{position:absolute;left:22px;bottom:7px;width:64px;height:13px;border-radius:5px;background:#8f7180}
.art-giant-plush .giant-ear{position:absolute;top:8px;width:38px;height:38px;border-radius:50%;background:#d7a978}.art-giant-plush .e1{left:17px}.art-giant-plush .e2{right:17px}.art-giant-plush .giant-head{position:absolute;left:20px;top:17px;width:68px;height:62px;border-radius:46% 46% 50% 50%;background:#d9ad7c}.art-giant-plush .giant-head:before,.art-giant-plush .giant-head:after{content:"";position:absolute;top:23px;width:7px;height:7px;border-radius:50%;background:#5e5148}.art-giant-plush .giant-head:before{left:19px}.art-giant-plush .giant-head:after{right:19px}.art-giant-plush .giant-head i{position:absolute;left:29px;top:33px;width:11px;height:8px;border-radius:50%;background:#7a5e4b}.art-giant-plush .giant-body{position:absolute;left:28px;top:68px;width:52px;height:38px;border-radius:46%;background:#c99868}
@media(max-width:900px){.room-scene-v093{aspect-ratio:16/10;border-radius:22px}.furniture-shop-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.room-tile .placed-furniture{transform:translate(-50%,-72%) scale(.50)}.room-tile .placed-furniture.furn-rug{transform:translate(-50%,-50%) scale(.44)}.room-tile .placed-furniture.furn-sofa{transform:translate(-50%,-72%) scale(.48)}.tile-lock{transform:translate(-50%,-50%) scale(.82)}.tile-number{display:none}.room-map-title{font-size:11px;left:12px;top:10px}}
@media(max-width:620px){.room-scene-v093{aspect-ratio:16/10}.furniture-shop-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.room-edit-note{display:none!important}.room-tile .placed-furniture{transform:translate(-50%,-72%) scale(.38)}.room-tile .placed-furniture.furn-sofa{transform:translate(-50%,-72%) scale(.36)}.room-tile .placed-furniture.furn-rug{transform:translate(-50%,-50%) scale(.34)}.room-head-stats{justify-content:flex-start}}


/* v1.0 room vote */
.room-vote-card{margin-top:16px;padding:20px}.room-vote-card.active{border-color:#9db2c2;background:linear-gradient(180deg,#fbfdfe,#f4f8fa)}.vote-headline{font-size:20px;font-weight:950;margin:4px 0 8px}.vote-title-row{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.vote-total{padding:8px 12px;border-radius:999px;background:#edf3f6;color:#587895;font-weight:900}.teacher-vote-list{display:grid;gap:9px;margin:14px 0}.teacher-vote-option{display:grid;grid-template-columns:44px 1fr auto;align-items:center;gap:10px;border:1px solid #dbe4e9;border-radius:14px;background:#fff;padding:11px 13px}.teacher-vote-option.winner{border-color:#d3b560;background:#fffaf0;box-shadow:inset 0 0 0 1px rgba(211,181,96,.18)}.teacher-vote-emoji{font-size:26px;text-align:center}.teacher-vote-option div{display:flex;flex-direction:column;gap:2px}.teacher-vote-option small{color:#748592;font-weight:800}.teacher-vote-option b{font-size:18px;color:#587895}.vote-wait{margin-top:18px;padding:12px;border-radius:14px;background:#f2f6f8;color:#607684;font-weight:850}.student-vote-card{margin-top:24px;text-align:center}.vote-house-icon{font-size:42px;margin-bottom:4px}.student-vote-options{display:grid;gap:11px;margin:20px 0}.student-vote-option{width:100%;display:grid;grid-template-columns:54px 1fr 28px;align-items:center;gap:8px;text-align:left;border:2px solid #dbe4e9;background:#fff;border-radius:18px;padding:14px 15px;color:var(--text)}.student-vote-option>span{font-size:30px;text-align:center}.student-vote-option div{display:flex;flex-direction:column;gap:3px}.student-vote-option strong{font-size:17px}.student-vote-option small{color:#708391;font-weight:800}.student-vote-option.selected{border-color:#6f8faf;background:#f1f6f9;box-shadow:0 6px 18px rgba(77,104,126,.08)}.student-vote-option>b{font-size:22px;color:#587895}.student-vote-picked{margin:18px 0;padding:13px;border-radius:14px;background:#f2f6f8;color:#536a79}
@media(max-width:700px){.teacher-vote-option{grid-template-columns:40px 1fr auto}.student-vote-option{grid-template-columns:48px 1fr 24px}.vote-title-row{align-items:flex-start}.vote-total{font-size:12px}}


/* v1.1 placement proposal + final vote */
.placement-flow-card{margin-top:16px;padding:20px}.placement-flow-card.active{border-color:#9fb6c6;background:linear-gradient(180deg,#fcfdfe,#f2f7f9)}.placement-flow-card.result{border-color:#d7c486;background:linear-gradient(180deg,#fffdf7,#faf6e8)}
.placement-student-shell{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:18px;align-items:start;margin-top:14px}.placement-student-head{display:flex;justify-content:space-between;gap:12px;align-items:flex-start}.placement-submit-card,.placement-candidate-card{position:sticky;top:12px}.placement-scene{min-height:520px}.placement-draft{cursor:grab;touch-action:none;filter:drop-shadow(0 12px 8px rgba(44,60,72,.18));opacity:.92}.placement-draft.dragging{cursor:grabbing;transform:translate(-50%,-50%) scale(1.05)}.placement-draft .drag-hint{opacity:1;background:rgba(255,255,255,.94)}
.placement-candidate-buttons{display:grid;gap:9px;margin-bottom:14px}.placement-candidate-btn{width:100%;display:grid;grid-template-columns:34px 1fr 22px;align-items:center;gap:8px;text-align:left;border:2px solid #dbe4e9;background:#fff;border-radius:15px;padding:11px;color:var(--text)}.placement-candidate-btn>span{font-size:22px}.placement-candidate-btn div{display:flex;flex-direction:column;gap:2px}.placement-candidate-btn small{font-weight:800;color:#708391}.placement-candidate-btn.selected{border-color:#6f8faf;background:#f1f6f9}.placement-candidate-btn>b{color:#587895;font-size:18px}
@media(max-width:900px){.placement-student-shell{grid-template-columns:1fr}.placement-submit-card,.placement-candidate-card{position:static}.placement-scene{min-height:460px}}
@media(max-width:700px){.placement-scene{min-height:390px}.placement-student-shell{gap:12px}}


/* v1.2 — みんなのまち / 箱庭タウン */
.town-home{background:linear-gradient(180deg,#f8fbf7 0%,#f5f8fa 100%)}
.town-home .brand-title{letter-spacing:.02em}.town-home .house-intro{max-width:1050px}
.town-area-card{min-height:285px;background:linear-gradient(180deg,#fff,#fbfdfb);overflow:hidden}
.town-area-card .door-number{color:#708d78}.area-visual{position:relative;display:block;width:180px;height:150px;margin:4px auto 18px;filter:drop-shadow(0 12px 8px rgba(74,88,65,.11))}
.area-grass{position:absolute;left:12px;top:35px;width:156px;height:96px;clip-path:polygon(50% 0,100% 50%,50% 100%,0 50%);background:linear-gradient(145deg,#9fc47f,#86b16c);box-shadow:inset 0 0 0 2px rgba(75,104,61,.10)}
.area-path{position:absolute;left:59px;top:82px;width:76px;height:18px;background:#dcc79e;transform:rotate(-27deg);border-radius:50%}
.area-house{position:absolute;left:67px;top:39px;width:58px;height:48px;background:#f4dfb9;border:3px solid #b78e69;border-radius:4px;z-index:3}.area-house:before{content:"";position:absolute;left:-9px;top:-23px;width:70px;height:38px;background:#7696ad;clip-path:polygon(50% 0,100% 100%,0 100%)}.area-house:after{content:"";position:absolute;left:22px;bottom:0;width:14px;height:25px;background:#9c6d54;border-radius:2px 2px 0 0}
.area-tree{position:absolute;left:34px;top:51px;width:40px;height:42px;border-radius:50%;background:#6f9e68;z-index:4;box-shadow:14px 3px #7cac71,-3px 13px #83b477}.area-tree:after{content:"";position:absolute;left:18px;top:32px;width:6px;height:31px;background:#8d6849;z-index:-1}

.town-scene{border-color:#d7e2cf!important;background:linear-gradient(180deg,#dfeff2 0 33%,#cfe3bd 34% 100%)!important;box-shadow:0 20px 45px rgba(54,78,61,.10)!important}
.town-scene:before{background-image:radial-gradient(circle at 12% 18%,rgba(255,255,255,.78) 0 26px,transparent 27px),radial-gradient(circle at 17% 19%,rgba(255,255,255,.6) 0 18px,transparent 19px),radial-gradient(circle at 82% 13%,rgba(255,255,255,.62) 0 34px,transparent 35px)!important;background-size:auto!important;background-position:0 0!important;opacity:.72}
.town-scene .room-map-sky span{background:rgba(255,255,255,.36)}
.town-scene .room-map-title{background:rgba(255,255,255,.88);border-color:rgba(89,125,83,.15);color:#567261;box-shadow:0 5px 16px rgba(70,101,67,.07)}
.town-scene .room-tile .tile-floor{background:linear-gradient(145deg,#a9cd86,#82b46d)!important;filter:drop-shadow(0 8px 5px rgba(63,91,51,.16));border:none}
.town-scene .room-tile.unlocked .tile-floor:after{content:"";position:absolute;inset:3px;clip-path:inherit;background:radial-gradient(circle at 22% 34%,rgba(255,255,255,.25) 0 2px,transparent 3px),radial-gradient(circle at 68% 63%,rgba(77,117,61,.15) 0 2px,transparent 3px);background-size:36px 28px;mix-blend-mode:normal;opacity:.75}
.town-scene .room-tile.locked .tile-floor{background:linear-gradient(145deg,rgba(157,177,143,.56),rgba(130,151,119,.48))!important;opacity:.58;filter:grayscale(.18) drop-shadow(0 5px 3px rgba(63,83,53,.10))}
.town-scene .room-tile.selected:after{background:#6ea37a;opacity:.50}.town-scene .tile-number{background:rgba(255,255,255,.78);border-color:rgba(82,113,77,.14);color:#5d755f}
.town-scene .tile-lock{color:#5f6e60}.town-scene .tile-lock button{border-color:rgba(87,113,73,.18);color:#55705b;background:rgba(255,255,255,.92)}.town-scene .tile-lock button strong{color:#8d734d}
.town-scene .rope-post{background:#fff2d4;border-color:#9b765d;box-shadow:0 7px 0 -3px #9b765d}.town-scene .tile-wall{display:none}
.town-path{position:absolute;left:23%;top:47%;width:56%;height:14%;z-index:12;border-radius:50%;background:#ddc89d;transform:rotate(-27deg);opacity:.70;pointer-events:none;box-shadow:inset 0 0 0 2px rgba(131,102,70,.06)}
.town-scene .room-edit-note{border-color:#dbe5d3;color:#617060;background:rgba(255,255,255,.91)}

.starter-town-house{position:absolute;left:50%;top:43%;width:106px;height:105px;transform:translate(-50%,-72%);z-index:28;pointer-events:none;filter:drop-shadow(0 8px 5px rgba(66,78,57,.18))}
.starter-house-shadow{position:absolute;left:20px;bottom:8px;width:78px;height:22px;border-radius:50%;background:rgba(66,81,56,.18);transform:skewX(-22deg)}
.starter-house-body{position:absolute;left:24px;top:39px;width:66px;height:50px;background:#f5e0b8;border:4px solid #b88d66;border-radius:5px;z-index:2}.starter-house-roof{position:absolute;left:10px;top:12px;width:92px;height:48px;background:#7595ab;clip-path:polygon(50% 0,100% 100%,0 100%);z-index:3}.starter-house-door{position:absolute;left:27px;bottom:0;width:15px;height:28px;background:#996b51;border-radius:3px 3px 0 0}.starter-house-window{position:absolute;top:13px;width:14px;height:14px;background:#bfe0e5;border:3px solid #fff4d5}.starter-house-window.w1{left:7px}.starter-house-window.w2{right:7px}.starter-house-sign{position:absolute;left:31px;top:48px;z-index:5;font-size:7px;font-weight:950;letter-spacing:.05em;color:#765b49;background:#fff4d7;border-radius:3px;padding:2px 4px}

/* room furniture IDs are intentionally reused internally; these are town visuals */
.art-plant .tree-trunk{position:absolute;left:47px;top:50px;width:12px;height:39px;background:#875f43;border-radius:4px}.art-plant .tree-crown{position:absolute;border-radius:50%;background:#6f9d66}.art-plant .c1{left:20px;top:16px;width:50px;height:48px}.art-plant .c2{left:47px;top:9px;width:43px;height:45px;background:#7eac71}.art-plant .c3{left:34px;top:2px;width:39px;height:39px;background:#84b575}
.placed-furniture.furn-rug{width:145px;height:92px}.art-rug{width:145px;height:92px}.art-rug:before{display:none}.art-rug .flowerbed-soil{position:absolute;left:14px;right:14px;top:28px;height:45px;border-radius:50%;background:#8d684c;border:5px solid #ccb08a}.art-rug .flower{position:absolute;top:34px;font-size:23px;z-index:2}.art-rug .f1{left:34px;color:#e68ca1}.art-rug .f2{left:66px;color:#f0c35f}.art-rug .f3{left:95px;color:#8ca9d2}
.art-lamp .streetlamp-pole{position:absolute;left:48px;top:28px;width:7px;height:59px;background:#5f6d70;border-radius:4px}.art-lamp .streetlamp-light{position:absolute;left:33px;top:9px;width:37px;height:28px;background:#ffe5a3;border:6px solid #65767a;border-radius:45% 45% 30% 30%;box-shadow:0 0 18px rgba(255,226,143,.45)}.art-lamp .streetlamp-base{position:absolute;left:35px;bottom:9px;width:34px;height:8px;border-radius:50%;background:#65767a}
.art-bookshelf:before{display:none}.art-bookshelf .bookshop-roof{position:absolute;left:9px;top:7px;width:84px;height:38px;background:#cf8075;clip-path:polygon(50% 0,100% 100%,0 100%)}.art-bookshelf .bookshop-body{position:absolute;left:19px;top:38px;width:65px;height:50px;background:#f2dfbb;border:5px solid #a97d59;border-radius:3px}.art-bookshelf .bookshop-body b{position:absolute;left:13px;top:8px;font-size:10px;color:#6b6777}.art-bookshelf .bookshop-door{position:absolute;left:45px;top:65px;width:16px;height:23px;background:#8a6450}
.placed-furniture.furn-sofa{width:140px;height:90px}.art-sofa{width:140px;height:90px}.art-sofa .bench-seat{position:absolute;left:19px;top:43px;width:100px;height:16px;border-radius:5px;background:#a77b54;box-shadow:0 6px #845f43}.art-sofa .bench-back{position:absolute;left:23px;top:20px;width:92px;height:22px;border-radius:5px;background:#b68a62}.art-sofa .bench-leg{position:absolute;top:59px;width:9px;height:23px;background:#6e5948}.art-sofa .l1{left:34px}.art-sofa .l2{right:34px}
.art-tv .town-screen{position:absolute;left:13px;right:13px;top:11px;height:72px;border:8px solid #4f5e66;border-radius:8px;background:linear-gradient(145deg,#85abc0,#6d8fa5);color:#eaf5f8;font-size:11px;font-weight:950;display:flex;align-items:center;justify-content:center;letter-spacing:.14em}.art-tv .town-screen-pole{position:absolute;top:84px;width:8px;height:22px;background:#535f65}.art-tv .p1{left:45px}.art-tv .p2{right:45px}
.placed-furniture.furn-aquarium{width:140px;height:95px}.art-aquarium{width:140px;height:95px}.art-aquarium:before{display:none}.art-aquarium .pond-water{position:absolute;left:10px;right:10px;top:24px;height:55px;border-radius:50%;background:#79b8c4;border:7px solid #b9a987;box-shadow:inset 0 0 0 6px rgba(255,255,255,.18)}.art-aquarium .pond-stone{position:absolute;width:22px;height:14px;border-radius:50%;background:#8f978f;z-index:2}.art-aquarium .s1{left:13px;top:53px}.art-aquarium .s2{right:16px;top:29px}.art-aquarium .pond-duck{position:absolute;left:63px;top:43px;color:#f6d56a;font-size:18px;font-weight:950;z-index:3}

.furniture-shop .shop-title-row h3{color:#4f6f58}.furniture-shop-card{background:linear-gradient(180deg,#fff,#fbfdfb)}
@media(max-width:900px){.starter-town-house{transform:translate(-50%,-72%) scale(.78)}.area-visual{transform:scale(.9)}}


/* v1.3 — 佐藤先生の部屋 / 今日の○○ */
.room-home{background:linear-gradient(180deg,#f7f9fb,#f2f4f6)}.room-home-card{min-height:300px}.simple-public-room{max-width:1040px;margin:0 auto}.simple-room-preview{position:relative;width:min(100%,920px);aspect-ratio:16/9;margin:14px auto 22px;border:1px solid #d9dde0;border-radius:26px;overflow:hidden;background:#f6efe5;box-shadow:0 18px 45px rgba(42,51,59,.08)}.simple-room-preview.compact{width:190px;height:145px;aspect-ratio:auto;border-radius:18px;margin:8px auto 16px}.simple-room-wall{position:absolute;inset:0 0 34% 0;background:linear-gradient(180deg,#f2eee8,#ebe5dc);border-bottom:4px solid #cbbda9}.simple-room-floor{position:absolute;left:0;right:0;bottom:0;height:35%;background:repeating-linear-gradient(90deg,#c9ac89 0 62px,#bfa17f 63px 65px);transform:skewY(-1deg);transform-origin:left bottom}.room-window{position:absolute;left:9%;top:12%;width:24%;height:37%;display:flex;align-items:center;justify-content:center;background:#bcdce6;border:8px solid #fff;border-radius:8px;font-size:34px;box-shadow:0 2px 8px rgba(50,70,80,.10)}.room-clock-face{position:absolute;right:13%;top:12%;width:58px;height:58px;border-radius:50%;border:5px solid #8b7d70;background:#fff;display:flex;align-items:center;justify-content:center;font-size:10px;font-weight:900;color:#6c6259}.room-desk{position:absolute;left:37%;bottom:18%;width:26%;height:12%;background:#9f7657;border-radius:7px;box-shadow:0 10px 0 #765640;display:flex;gap:16px;align-items:center;justify-content:center;font-size:25px}.room-aquarium-mini{position:absolute;right:7%;bottom:18%;width:19%;height:27%;border:7px solid #607c88;border-radius:9px;background:linear-gradient(#9de0ef,#63bfd3);display:flex;align-items:center;justify-content:space-around;font-size:29px;box-shadow:0 8px 0 #4d646c}.room-fridge-mini{position:absolute;left:8%;bottom:12%;width:16%;height:37%;border-radius:10px;background:linear-gradient(90deg,#f4f5f6,#dfe3e5);border:5px solid #b9c0c4;box-shadow:0 8px 0 #aeb4b7;display:flex;align-items:center;justify-content:center;color:#91999d;font-size:9px;font-weight:950;letter-spacing:.08em}.room-fridge-mini:after{content:"";position:absolute;right:10px;top:20%;width:4px;height:26%;border-radius:4px;background:#a5adb1}.room-sofa-mini{position:absolute;left:65%;bottom:11%;width:20%;height:15%;border-radius:18px 18px 8px 8px;background:#7691a6;box-shadow:0 8px 0 #5d7587}.simple-room-preview.compact .room-window{border-width:4px;font-size:18px}.simple-room-preview.compact .room-clock-face{width:26px;height:26px;border-width:2px;font-size:0}.simple-room-preview.compact .room-desk{font-size:12px;gap:4px}.simple-room-preview.compact .room-aquarium-mini{border-width:3px;font-size:13px;box-shadow:0 4px 0 #4d646c}.simple-room-preview.compact .room-fridge-mini{border-width:2px;font-size:0}.simple-room-preview.compact .room-sofa-mini{box-shadow:0 4px 0 #5d7587}.room-today-explain{max-width:920px;margin:0 auto 18px}.today-theme-chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:12px}.today-theme-chips span{padding:8px 12px;border-radius:999px;background:#f1f4f6;font-weight:850;color:#60717c}
.creation-teacher-card{margin-top:16px}.creation-teacher-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;margin-bottom:10px}.creation-count{padding:9px 13px;border-radius:999px;background:#eef4f7;color:#57748a;font-weight:950}.creation-theme-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:16px}.creation-theme-btn{min-height:125px;border:1px solid #dce3e7;border-radius:18px;background:#fff;color:#2b3035;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px}.creation-theme-btn>span{font-size:40px}.creation-theme-btn strong{font-size:19px}.creation-theme-btn small{color:#75818a}.creation-submit-list{display:flex;gap:7px;flex-wrap:wrap;margin-top:12px}.creation-submit-list .nick-chip.done{background:#eaf5ee;border-color:#c9e1d0}.creation-finished{margin-top:12px;padding:13px;border-radius:14px;background:#fff4cf;text-align:center;font-weight:950}
.creation-scene{position:relative;width:100%;aspect-ratio:16/9;border-radius:22px;overflow:hidden;border:1px solid #cbd8de;background:#eaf0f2;touch-action:none}.creation-scene-label{position:absolute;left:14px;top:12px;z-index:40;background:rgba(255,255,255,.88);backdrop-filter:blur(5px);padding:8px 12px;border-radius:999px;font-size:13px;font-weight:950;color:#50646f}.aquarium-inside{position:absolute;inset:0;background:linear-gradient(180deg,#9fe4f2 0%,#65bfd4 62%,#4aa9c2 100%);box-shadow:inset 0 0 0 12px #526f79}.water-glow{position:absolute;inset:12px;background:linear-gradient(110deg,rgba(255,255,255,.22),transparent 28% 70%,rgba(255,255,255,.13));border-radius:12px}.sand-bed{position:absolute;left:10px;right:10px;bottom:10px;height:19%;background:linear-gradient(#e6d09f,#ccb27f);border-radius:50% 50% 0 0/35% 35% 0 0}.bubble{position:absolute;border:3px solid rgba(255,255,255,.66);border-radius:50%}.bubble.b1{width:24px;height:24px;left:13%;top:23%}.bubble.b2{width:14px;height:14px;left:19%;top:15%}.bubble.b3{width:34px;height:34px;right:14%;top:28%}.tank-plant{position:absolute;bottom:12%;font-size:42px;filter:saturate(.8)}.tank-plant.p1{left:7%}.tank-plant.p2{right:8%;transform:scaleX(-1)}.fridge-inside{position:absolute;inset:0;background:linear-gradient(90deg,#eef2f4,#fff 16% 84%,#e4e9eb);box-shadow:inset 0 0 0 15px #c7d0d4}.fridge-light{position:absolute;right:8%;top:8%;width:12%;height:7%;border-radius:12px;background:#fffbd9;box-shadow:0 0 25px #fff5a3}.fridge-shelf{position:absolute;left:8%;right:8%;height:8px;border-radius:8px;background:#b7c8cf;box-shadow:0 4px 0 rgba(101,121,130,.12)}.fridge-shelf.s1{top:38%}.fridge-shelf.s2{top:66%}.fridge-drawer{position:absolute;left:10%;right:10%;bottom:7%;height:19%;border:4px solid #c0ccd1;border-radius:8px;background:rgba(220,235,240,.5)}.creation-object-layer{position:absolute;inset:0;z-index:20}.creation-object{position:absolute;transform:translate(-50%,-50%) scale(var(--scale,1)) rotate(var(--rot,0deg));transform-origin:center;user-select:none;touch-action:none;filter:drop-shadow(0 4px 3px rgba(32,48,56,.18))}.creation-object span{display:block;font-size:clamp(38px,6vw,76px);line-height:1}.creation-object.draft{z-index:100;outline:3px dashed rgba(255,255,255,.85);outline-offset:6px;border-radius:12px;cursor:grab}.creation-object.draft:active{cursor:grabbing}
.creation-student-shell{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(310px,.7fr);gap:16px;align-items:start}.creation-student-head{margin-bottom:10px}.creation-palette{position:sticky;top:10px;max-height:calc(100vh - 26px);display:flex;flex-direction:column;gap:10px}.palette-scroll{overflow:auto;padding-right:2px}.creation-group{margin-bottom:13px}.creation-group>strong{display:block;font-size:13px;color:#65737c;margin-bottom:7px}.creation-item-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:7px}.creation-item-btn{min-height:70px;border:1px solid #dce3e6;background:#fff;border-radius:12px;padding:6px 3px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1px;color:#333}.creation-item-btn span{font-size:28px}.creation-item-btn small{font-size:10px;line-height:1.15}.creation-item-btn.selected{border:2px solid #6f8faf;background:#eef5f9}.creation-controls{display:grid;grid-template-columns:1fr 1fr .7fr .7fr;gap:6px}.creation-controls button{border:1px solid #d6dfe3;background:#f7f9fa;border-radius:11px;padding:9px 4px;font-weight:850;color:#586973}.creation-done-icon{font-size:54px;margin-bottom:6px}
@media(max-width:900px){.creation-student-shell{grid-template-columns:1fr}.creation-palette{position:static;max-height:none}.creation-item-grid{grid-template-columns:repeat(6,minmax(0,1fr))}.creation-scene{aspect-ratio:16/10}}
@media(max-width:620px){.creation-item-grid{grid-template-columns:repeat(4,minmax(0,1fr))}.creation-theme-grid{grid-template-columns:1fr}}
.simple-room-preview.interactive .room-feature-hotspot{appearance:none;-webkit-appearance:none;font-family:inherit;cursor:pointer;padding:0}
.room-feature-hotspot{transition:transform .16s ease,filter .16s ease}
.room-feature-hotspot:focus-visible{outline:4px solid rgba(111,143,175,.35);outline-offset:5px}
@media(hover:hover) and (pointer:fine){.room-feature-hotspot:hover{transform:translateY(-4px);filter:brightness(1.04)}}
.feature-gallery-page{max-width:1080px;margin:0 auto}
.feature-gallery-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:14px}
.feature-gallery-head h2{margin:.2rem 0 .35rem}
.feature-gallery-stage .creation-scene{aspect-ratio:16/9;min-height:0}
.feature-gallery-stage .creation-object span{font-size:clamp(48px,7.2vw,92px)}
.gallery-nav{display:flex;align-items:center;justify-content:center;gap:12px;flex-wrap:wrap;margin:14px 0}
.gallery-nav span{font-weight:900;color:#66747d}
@media(max-width:620px){.feature-gallery-head{flex-direction:column}.feature-gallery-head .btn{width:100%}.feature-gallery-stage .creation-scene{aspect-ratio:4/3}}

/* v1.4 — 国語 / みんなの見出し */
.japanese-icon{background:#f1f0ed;color:#665f57}
.field-label{display:block;font-size:14px;font-weight:900;margin:16px 0 7px}
.text-input,.text-area{width:100%;border:1px solid var(--line);border-radius:14px;background:#fff;color:var(--text);padding:13px 14px;font:inherit;outline:none}
.text-input:focus,.text-area:focus{border-color:var(--accent);box-shadow:0 0 0 4px rgba(111,143,175,.12)}
.text-area{resize:vertical;line-height:1.65}.headline-context-input{min-height:132px}
.headline-setup-card{max-width:780px;margin:0 auto}.headline-image-picker{margin-top:10px}.file-input{width:100%;padding:10px;border:1px dashed #cbd5dc;border-radius:14px;background:#fafbfc}
.headline-image-preview-wrap{margin-top:12px;border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#eef1f3}.headline-image-preview-wrap img{display:block;width:100%;max-height:440px;object-fit:contain;background:#eef1f3}
.headline-prompt-preview{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin:18px 0;padding:14px 16px;border-radius:14px;background:#f3f6f8}.headline-prompt-preview span{font-size:12px;color:var(--muted);font-weight:850}.headline-prompt-preview strong{font-size:18px}
.headline-teacher-layout{display:grid;grid-template-columns:minmax(300px,340px) minmax(0,1fr);gap:18px;align-items:start}.headline-teacher-side{display:grid;gap:12px;position:sticky;top:10px}.headline-teacher-main{min-width:0}.headline-teacher-main h2{margin:3px 0 14px;font-size:28px}.headline-source-card h2{font-size:20px;margin:4px 0 12px}.headline-source{display:grid;gap:10px}.headline-source-title{font-weight:950;font-size:17px}.headline-source-image{border:1px solid var(--line);border-radius:16px;overflow:hidden;background:#eef1f3}.headline-source-image img{display:block;width:100%;max-height:520px;object-fit:contain;background:#eef1f3}.headline-source-image.compact img{max-height:220px}.headline-source-context{white-space:normal;line-height:1.72;font-size:15px;color:#46515a;background:#f7f9fa;border-radius:14px;padding:14px;max-height:250px;overflow:auto}.headline-source.compact .headline-source-context{font-size:13px;max-height:160px}.headline-metrics{gap:10px}.headline-metrics .card{padding:15px}.headline-metrics .metric{font-size:30px;margin-bottom:0}
.headline-board-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.headline-card{position:relative;min-height:150px;border:1px solid #dce3e7;border-radius:18px;background:#fff;padding:22px 18px 16px;box-shadow:0 8px 24px rgba(48,62,72,.04);display:flex;flex-direction:column}.headline-card-number{position:absolute;right:12px;top:10px;font-size:11px;font-weight:900;color:#a0a8ad}.headline-card-text{font-size:clamp(20px,2.5vw,28px);font-weight:950;line-height:1.45;letter-spacing:.01em;padding-right:22px;word-break:break-word;margin:auto 0}.headline-card-author{margin-top:14px;padding-top:10px;border-top:1px solid #edf0f2;color:#66727a;font-size:13px;font-weight:850}.headline-empty{border:1px dashed #d5dde2;border-radius:18px;padding:54px 20px;text-align:center;color:var(--muted);font-weight:850;background:rgba(255,255,255,.5)}
.headline-student-shell{max-width:900px;margin:0 auto;display:grid;gap:14px}.headline-student-top{display:flex;align-items:center;justify-content:space-between}.headline-student-source h2{font-size:clamp(24px,4vw,34px);margin:5px 0 16px}.headline-write-card{padding:clamp(18px,4vw,28px)}.headline-answer{min-height:120px;font-size:clamp(20px,3.2vw,27px);font-weight:850;line-height:1.55}.headline-answer-tools{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:8px 0 14px;color:var(--muted);font-size:13px;font-weight:850}.hint-toggle{border:1px solid #ccd8df;border-radius:999px;background:#f6f9fa;color:#587895;padding:8px 14px;min-height:42px;font-weight:900}.headline-hint-panel{margin:10px 0 16px;border:1px solid #dbe4e9;border-radius:16px;background:#f8fafb;padding:14px}.headline-hint-tabs{display:flex;gap:7px;flex-wrap:wrap}.headline-hint-tabs button{min-height:42px;border:1px solid #d8e0e5;border-radius:999px;background:#fff;color:#53646f;padding:8px 12px;font-weight:850}.headline-hint-tabs button.active{background:var(--accent);border-color:var(--accent);color:#fff}.headline-hint-text{margin-top:12px;padding:12px;border-radius:12px;background:#fff;font-size:17px;font-weight:850;line-height:1.55}.headline-done-card{margin-top:44px}
@media(max-width:900px){.headline-teacher-layout{grid-template-columns:1fr}.headline-teacher-side{position:static;grid-template-columns:1fr 1fr}.headline-teacher-side>.headline-source-card,.headline-teacher-side>.card:last-child{grid-column:1/-1}.headline-board-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:620px){.headline-teacher-side{grid-template-columns:1fr}.headline-teacher-side>.headline-source-card,.headline-teacher-side>.card:last-child{grid-column:auto}.headline-board-grid{grid-template-columns:1fr}.headline-card{min-height:125px}.headline-hint-tabs{display:grid;grid-template-columns:1fr}.headline-hint-tabs button{width:100%}.headline-student-source,.headline-write-card{padding:16px}}