*{box-sizing:border-box}
html,body{margin:0;width:100%;height:100%;font-family:"Segoe UI","Noto Sans JP",sans-serif}
body{overflow:hidden}button,input,textarea{font:inherit}.hidden{display:none!important}
.login-body{min-height:100vh;display:grid;place-items:center;background:linear-gradient(135deg,#071427,#183d6d);color:#fff}
.login-card{width:min(400px,92vw);padding:34px;border-radius:22px;background:rgba(255,255,255,.12);backdrop-filter:blur(18px);box-shadow:0 22px 60px rgba(0,0,0,.35)}
.login-card h1{margin:8px 0 4px}.login-card label{display:block;margin:14px 0}.login-card input{width:100%;padding:12px 14px;margin-top:6px;border:1px solid rgba(255,255,255,.25);border-radius:10px;background:rgba(255,255,255,.1);color:#fff}
.login-card button{width:100%;padding:12px;border:0;border-radius:10px;font-weight:700;cursor:pointer}.brand-mark{width:52px;height:52px;border-radius:14px;display:grid;place-items:center;background:#fff;color:#173c69;font-weight:900}.error{padding:10px;margin:10px 0;border-radius:9px;background:rgba(160,0,0,.5)}.success{padding:12px;border-radius:10px;background:rgba(0,120,70,.45);margin-bottom:15px}.login-link{display:block;text-align:center;padding:12px;border-radius:10px;background:#fff;color:#173c69;text-decoration:none;font-weight:700}
.desktop-body{background:#0a3157;color:#fff}.desktop{width:100vw;height:100vh;position:relative;background:radial-gradient(circle at 70% 20%,rgba(68,150,210,.55),transparent 35%),linear-gradient(145deg,#0b335c,#09213d)}
.desktop-top{height:42px;padding:0 14px;display:flex;align-items:center;justify-content:space-between;background:rgba(3,15,28,.35);backdrop-filter:blur(8px)}.desktop-title{font-weight:600}.desktop-actions{display:flex;gap:12px;align-items:center}.desktop-actions a{color:#fff;text-decoration:none}.desktop-actions button{background:transparent;border:0;color:#fff;font-size:20px;cursor:pointer}
.desktop-area{position:absolute;inset:42px 0 48px;overflow:auto}.icons{position:relative;min-width:100%;min-height:100%}.icon{position:absolute;width:90px;min-height:92px;padding:6px;border-radius:8px;text-align:center;cursor:default;user-select:none}.icon:hover{background:rgba(255,255,255,.14)}.icon.selected{background:rgba(80,150,255,.32)!important;outline:1px solid rgba(180,220,255,.85)}.icon.drop-target{background:rgba(80,190,110,.36)!important;outline:2px solid rgba(150,255,185,.95)}
.icon-glyph{font-size:42px;line-height:48px;text-shadow:0 2px 5px rgba(0,0,0,.4)}.icon-name{font-size:12px;line-height:16px;word-break:break-word;text-shadow:0 1px 3px #000}
.drop-hint{display:none;position:absolute;inset:18px;border:2px dashed rgba(255,255,255,.7);border-radius:18px;place-items:center;background:rgba(0,0,0,.2);font-size:22px;pointer-events:none}.desktop-area.dragging .drop-hint{display:grid}
.taskbar{position:absolute;left:0;right:0;bottom:0;height:48px;background:rgba(3,15,28,.75);backdrop-filter:blur(15px);display:flex;align-items:center;padding:0 8px;gap:8px}.start-button,.breadcrumbs button{border:0;color:#fff;background:rgba(255,255,255,.1);border-radius:8px;padding:8px 10px;cursor:pointer}.taskbar-spacer{flex:1}
.context-menu{position:fixed;z-index:50;min-width:180px;padding:6px;background:rgba(25,30,38,.96);border:1px solid rgba(255,255,255,.16);border-radius:10px;box-shadow:0 15px 45px rgba(0,0,0,.35)}.context-menu button{display:block;width:100%;padding:9px 12px;text-align:left;border:0;border-radius:6px;background:transparent;color:#fff;cursor:pointer}.context-menu button:hover{background:rgba(255,255,255,.12)}
.window{position:fixed;z-index:40;left:50%;top:50%;transform:translate(-50%,-50%);width:min(860px,94vw);height:min(650px,84vh);background:#f7f8fa;color:#17202a;border-radius:14px;overflow:hidden;box-shadow:0 25px 70px rgba(0,0,0,.5)}.window-header{height:44px;padding:0 12px;display:flex;align-items:center;justify-content:space-between;background:#e8ebef}.window-header button{border:0;background:transparent;font-size:24px;cursor:pointer}.window-body{height:calc(100% - 44px);padding:14px;overflow:auto}.editor{width:100%;height:calc(100% - 52px);resize:none;border:1px solid #bbc3cc;border-radius:8px;padding:12px;font-family:Consolas,"Noto Sans Mono",monospace;line-height:1.5;outline:none}.editor:focus{border-color:#6d8fb3}.savebar{height:44px;display:flex;align-items:center;justify-content:flex-end;color:#5f6974;font-size:13px}.searchbox{display:flex;gap:8px}.searchbox input{flex:1;padding:10px}.search-results{margin-top:12px}.search-result{padding:10px;border-bottom:1px solid #ddd}.fatal-box{max-width:700px;margin:40px auto;background:#fff;color:#222;padding:24px;border-radius:14px}
@media(max-width:650px){.desktop-actions span{display:none}.icon{width:82px}.window{width:96vw;height:84vh}}
/* 動画サムネイルを小さくする */
.video-thumb-wrap{
    width:64px !important;
    height:46px !important;
    margin:0 auto 6px;
}

.video-thumb{
    width:100%;
    height:100%;
    object-fit:cover;
}

.video-play-mark{
    width:22px;
    height:22px;
    font-size:10px;
}