:root{--bg:#0a0806;--surface:#15100b;--surface2:#20170f;--panel:#15110d;--paper:#21180f;--text:#f6ead6;--muted:#bdab91;--accent:#d6a24e;--accent2:#f1d48f;--line:rgba(226,177,86,.28);--hero:url('assets/workspace-wa.png')}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Yu Gothic",Meiryo,sans-serif;line-height:1.7;transition:background .35s,color .35s}button,input,select,textarea{font:inherit}.demo-header{height:72px;display:flex;align-items:center;justify-content:space-between;padding:0 max(20px,calc((100vw - 1360px)/2));border-bottom:1px solid var(--line);background:rgba(8,7,6,.94);position:sticky;top:0;z-index:30;backdrop-filter:blur(12px)}.demo-brand{display:flex;align-items:center;gap:10px;color:inherit;text-decoration:none}.demo-brand img{width:42px;height:42px;border-radius:50%}.demo-brand span{display:flex;flex-direction:column;line-height:1.1}.demo-brand b{font-family:"Yu Mincho",serif;color:var(--accent2);font-size:20px;letter-spacing:.14em}.demo-brand small{font-size:8px;color:var(--muted);letter-spacing:.14em;margin-top:5px}.back-link{color:var(--muted);text-decoration:none;font-size:12px;border:1px solid var(--line);padding:7px 12px;border-radius:99px}.demo-shell{max-width:1360px;margin:auto;padding:42px 20px 80px}.demo-hero{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:26px}.eyebrow{margin:0;color:var(--accent);font-size:10px;font-weight:800;letter-spacing:.25em}.demo-hero h1,.panel-heading h2{font-family:"Yu Mincho",serif;margin:6px 0 8px;font-size:clamp(30px,4vw,52px);letter-spacing:.06em}.demo-hero p:not(.eyebrow),.panel-heading p:not(.eyebrow){color:var(--muted);margin:0}.theme-switcher{display:flex;gap:8px;flex-wrap:wrap}.theme-switcher button,.soft-button{border:1px solid var(--line);background:var(--surface);color:var(--text);padding:9px 13px;border-radius:8px;cursor:pointer}.theme-switcher button.active{background:var(--accent);color:#120d05;font-weight:800}.desk-frame{display:grid;grid-template-columns:190px 1fr;border:1px solid var(--line);border-radius:16px;overflow:hidden;min-height:720px;background:var(--surface);box-shadow:0 28px 80px rgba(0,0,0,.32)}.desk-nav{padding:18px 12px;background:linear-gradient(180deg,var(--surface2),var(--surface));border-right:1px solid var(--line)}.desk-logo{display:flex;gap:9px;align-items:center;padding:5px 8px 20px;margin-bottom:8px;border-bottom:1px solid var(--line)}.desk-logo img{width:34px;height:34px;border-radius:50%}.desk-logo span{font-family:"Yu Mincho",serif;color:var(--accent2);font-weight:700}.desk-logo small{display:block;font-family:sans-serif;font-size:6px;letter-spacing:.16em;color:var(--muted)}.nav-item{width:100%;border:0;background:transparent;color:var(--muted);padding:12px 11px;border-radius:8px;text-align:left;cursor:pointer;margin:2px 0}.nav-item.active,.nav-item:hover{background:rgba(214,162,78,.13);color:var(--accent2)}.nav-item span{margin-left:9px}.desk-main{min-width:0;background:radial-gradient(circle at 70% -5%,rgba(214,162,78,.12),transparent 27%),var(--bg)}.desk-topbar{min-height:72px;padding:13px 20px;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);background:rgba(0,0,0,.12)}.desk-topbar small{display:block;color:var(--accent);font-weight:700}.desk-topbar strong{font-size:12px;color:var(--muted)}.demo-badge{font-size:10px;border:1px solid var(--line);color:var(--accent2);padding:5px 9px;border-radius:99px}.panel{display:none;padding:22px}.panel.active{display:block}.hero-card{min-height:290px;border:1px solid var(--line);border-radius:12px;background:linear-gradient(90deg,rgba(0,0,0,.72),rgba(0,0,0,.16)),var(--hero) center/cover;display:flex;align-items:end;padding:30px;box-shadow:inset 0 -70px 80px rgba(0,0,0,.35)}.hero-card p{color:var(--accent);font-weight:800;letter-spacing:.12em}.hero-card h2{font-family:"Yu Mincho",serif;font-size:34px;margin:5px 0}.hero-card span{color:#e1d7c8}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px;margin-top:12px}.stats article,.paper-card,.project,.estimate-info,.estimate-table,.estimate-total,.customer-card,.search-box{border:1px solid var(--line);background:var(--panel);border-radius:10px}.stats article{padding:16px}.stats small,.stats span{display:block;color:var(--muted);font-size:10px}.stats b{display:block;color:var(--accent2);font-family:Georgia,serif;font-size:28px;margin:3px 0}.home-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:12px}.paper-card{padding:18px}.paper-card h3{font-family:"Yu Mincho",serif;margin:0 0 12px}.paper-card ul{list-style:none;padding:0;margin:0}.paper-card li{padding:9px 0;border-bottom:1px solid var(--line);color:var(--muted);font-size:13px}.paper-card li:last-child{border-bottom:0}.paper-card time{display:inline-block;width:62px;color:var(--accent)}.panel-heading{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:20px}.panel-heading h2{font-size:36px}.project-list{display:grid;gap:10px}.project{padding:18px;display:grid;grid-template-columns:1fr 160px 120px;gap:16px;align-items:center}.project h3{margin:0 0 4px;font-family:"Yu Mincho",serif}.project p{margin:0;color:var(--muted);font-size:12px}.project select{width:100%;background:var(--bg);color:var(--text);border:1px solid var(--line);padding:9px;border-radius:7px}.progress-wrap{height:8px;background:rgba(255,255,255,.08);border-radius:99px;overflow:hidden}.progress-bar{height:100%;background:var(--accent);transition:width .3s}.progress-value{display:block;text-align:right;color:var(--accent2);font-size:11px;margin-top:5px}.save-row{display:flex;gap:14px;align-items:center;margin-top:18px}.action-button{border:0;background:linear-gradient(135deg,var(--accent),var(--accent2));color:#150e05;font-weight:900;padding:12px 18px;border-radius:8px;cursor:pointer}.save-row span{color:var(--accent2);font-size:12px}.estimate-info{display:grid;grid-template-columns:1fr 1fr;gap:12px;padding:16px;margin-bottom:12px}.estimate-info label{font-size:11px;color:var(--muted)}.estimate-info input,.estimate-row input,.search-box input{width:100%;margin-top:5px;background:var(--bg);color:var(--text);border:1px solid var(--line);padding:10px;border-radius:7px}.estimate-table{overflow:hidden;margin-bottom:10px}.estimate-row{display:grid;grid-template-columns:minmax(180px,1fr) 90px 150px 150px 40px;gap:8px;align-items:center;padding:10px 12px;border-bottom:1px solid var(--line)}.estimate-row:last-child{border-bottom:0}.estimate-row .line-total{text-align:right;color:var(--accent2);font-weight:800}.delete-row{background:transparent;border:0;color:#d99175;cursor:pointer;font-size:18px}.estimate-total{margin-top:14px;margin-left:auto;max-width:420px;padding:12px 18px}.estimate-total>div{display:flex;justify-content:space-between;padding:8px 0;color:var(--muted)}.estimate-total .grand{border-top:1px solid var(--line);color:var(--text);font-size:18px}.estimate-total b{color:var(--accent2)}.search-box{display:flex;align-items:center;padding:10px 14px;margin-bottom:12px;color:var(--accent)}.search-box input{border:0;margin:0;background:transparent;outline:0}.customer-list{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.customer-card{padding:16px}.customer-card h3{margin:0 0 5px;font-family:"Yu Mincho",serif}.customer-card p{margin:3px 0;color:var(--muted);font-size:12px}.customer-card span{display:inline-block;margin-top:8px;color:var(--accent);font-size:10px;border:1px solid var(--line);border-radius:99px;padding:3px 8px}.demo-note{color:var(--muted);font-size:10px;margin-top:14px}.theme-marble{--bg:#eee9e0;--surface:#fbf7f0;--surface2:#e8dfd3;--panel:#fffdf9;--paper:#fff;--text:#30271d;--muted:#756a5d;--accent:#b58a45;--accent2:#8a6328;--line:rgba(149,111,54,.28);--hero:url('assets/workspace-marble.png')}.theme-marble .demo-header{background:rgba(250,247,241,.94)}.theme-marble .desk-main{background:radial-gradient(circle at 70% -5%,rgba(181,138,69,.10),transparent 27%),#f7f3ec}.theme-marble .action-button{color:#fff}.theme-marble .hero-card{color:#fff}.theme-marble .hero-card span{color:#f5eee4}.theme-garage{--bg:#090a0b;--surface:#101214;--surface2:#181b1e;--panel:#111417;--paper:#111417;--text:#f3f3f0;--muted:#9ea3a5;--accent:#dc7a28;--accent2:#ffc073;--line:rgba(226,126,42,.28);--hero:url('assets/workspace-garage.png')}
@media(max-width:900px){.desk-frame{grid-template-columns:1fr}.desk-nav{display:grid;grid-template-columns:repeat(3,1fr);border-right:0;border-bottom:1px solid var(--line);padding:8px}.desk-logo{display:none}.nav-item{text-align:center;padding:10px 5px}.nav-item span{display:block;margin:2px 0 0;font-size:10px}.demo-hero{align-items:flex-start;flex-direction:column}.stats{grid-template-columns:1fr 1fr}.project{grid-template-columns:1fr}.customer-list{grid-template-columns:1fr}.estimate-row{grid-template-columns:1fr 70px 110px}.estimate-row .line-total{grid-column:1/3;text-align:left}.estimate-row .delete-row{grid-column:3;grid-row:2}.demo-header{padding:0 14px}.back-link{font-size:0}.back-link:after{content:'戻る';font-size:11px}}
@media(max-width:560px){.demo-shell{padding:24px 12px 60px}.demo-brand b{font-size:17px}.panel{padding:12px}.hero-card{min-height:260px;padding:20px}.hero-card h2{font-size:27px}.stats{grid-template-columns:1fr 1fr}.home-grid,.estimate-info{grid-template-columns:1fr}.theme-switcher button{font-size:11px;padding:8px 10px}.estimate-row{grid-template-columns:1fr 64px 100px;gap:6px;padding:9px}.estimate-row input{padding:8px}.panel-heading{align-items:flex-start;flex-direction:column}}


/* Ver.3: Mail + Chat */
.mail-layout,.chat-layout{display:grid;grid-template-columns:300px 1fr;gap:12px;min-height:500px}.mail-list,.mail-reader,.chat-rooms,.chat-room,.compose-card{border:1px solid var(--line);background:var(--panel);border-radius:10px;overflow:hidden}.mail-item,.chat-room-item{width:100%;display:block;text-align:left;border:0;border-bottom:1px solid var(--line);background:transparent;color:var(--text);padding:14px;cursor:pointer}.mail-item:hover,.mail-item.active,.chat-room-item:hover,.chat-room-item.active{background:rgba(214,162,78,.10)}.mail-item:last-child,.chat-room-item:last-child{border-bottom:0}.mail-item-head,.chat-room-row{display:flex;align-items:center;justify-content:space-between;gap:10px}.mail-item b,.chat-room-item b{font-size:13px}.mail-item small,.chat-room-item small{color:var(--muted);font-size:10px}.mail-item p,.chat-room-item p{margin:5px 0 0;color:var(--muted);font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.unread-dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px rgba(214,162,78,.5);flex:0 0 auto}.mail-reader{padding:24px}.mail-reader h3{font-family:"Yu Mincho",serif;font-size:24px;margin:4px 0 8px}.mail-meta{display:flex;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:11px;padding-bottom:14px;border-bottom:1px solid var(--line)}.mail-body{white-space:pre-wrap;color:var(--text);padding-top:20px}.empty-state{color:var(--muted);display:grid;place-items:center;min-height:180px;text-align:center;padding:30px}.compose-card{margin-top:12px;padding:18px}.compose-head{display:flex;justify-content:space-between;align-items:center}.compose-head h3{margin:0;font-family:"Yu Mincho",serif}.compose-card label{display:block;color:var(--muted);font-size:11px;margin-top:10px}.compose-card input,.compose-card textarea{width:100%;margin-top:5px;background:var(--bg);color:var(--text);border:1px solid var(--line);padding:10px;border-radius:7px;resize:vertical}.chat-room{display:grid;grid-template-rows:auto 1fr auto;min-height:500px}.chat-room-head{padding:14px 16px;border-bottom:1px solid var(--line);font-weight:700;color:var(--accent2)}.chat-messages{padding:18px;overflow:auto;display:flex;flex-direction:column;gap:10px;max-height:520px}.chat-bubble{max-width:76%;padding:10px 12px;border-radius:12px;background:var(--surface2);border:1px solid var(--line);font-size:13px}.chat-bubble.me{align-self:flex-end;background:rgba(214,162,78,.16)}.chat-bubble.other{align-self:flex-start}.chat-bubble time{display:block;font-size:9px;color:var(--muted);margin-top:5px}.chat-compose{display:grid;grid-template-columns:1fr auto;gap:8px;padding:12px;border-top:1px solid var(--line)}.chat-compose input{background:var(--bg);color:var(--text);border:1px solid var(--line);padding:10px;border-radius:7px;min-width:0}.chat-room-item .room-badge{display:inline-grid;place-items:center;min-width:20px;height:20px;padding:0 6px;border-radius:99px;background:var(--accent);color:#120d05;font-size:9px;font-weight:900}.theme-marble .mail-item:hover,.theme-marble .mail-item.active,.theme-marble .chat-room-item:hover,.theme-marble .chat-room-item.active{background:rgba(181,138,69,.10)}
@media(max-width:760px){.mail-layout,.chat-layout{grid-template-columns:1fr}.mail-list,.chat-rooms{max-height:220px;overflow:auto}.mail-reader{min-height:260px}.chat-room{min-height:480px}.chat-messages{max-height:350px}}