:root{
  --bg:#0f1419; --bg2:#1a212b; --bg3:#232d3a;
  --border:#2c3845; --border2:#3a4756;
  --text:#e8edf3; --text2:#a3b1c2; --text3:#6b7a8d;
  --blue:#5ea0ff; --blue-soft:rgba(94,160,255,.14);
  --green:#34d399; --orange:#fbbf24; --red:#f87171; --purple:#a78bfa;
}
*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Noto Sans JP",sans-serif;
  background:var(--bg);color:var(--text);font-size:14px;line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
button{font-family:inherit;cursor:pointer}
a{color:var(--blue);text-decoration:none}

/* ---- gate ---- */
.gate{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px}
.gate-card{background:var(--bg2);border:1px solid var(--border);border-radius:16px;padding:40px;max-width:440px;text-align:center}
.gate-logo{font-size:13px;font-weight:800;letter-spacing:2px;color:var(--blue);margin-bottom:18px}
.gate-card h1{font-size:20px;margin-bottom:12px}
.gate-card p{color:var(--text2);font-size:13px;margin-bottom:20px}
.gate-card .btn-primary,.gate-card .btn-ghost{display:inline-block;margin:4px}

/* ---- layout ---- */
.layout{display:flex;min-height:100vh}
.sidebar{width:220px;background:var(--bg2);border-right:1px solid var(--border);display:flex;flex-direction:column;padding:20px 0;position:sticky;top:0;height:100vh}
.brand{font-size:16px;font-weight:800;letter-spacing:.5px;padding:0 22px 20px;color:var(--text)}
.brand::before{content:'';display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--blue);margin-right:8px;vertical-align:middle}
.sidebar nav{flex:1;display:flex;flex-direction:column;gap:2px;padding:0 12px}
.nav-item{text-align:left;background:transparent;border:none;color:var(--text2);padding:10px 14px;border-radius:8px;font-size:13px;font-weight:600}
.nav-item:hover{background:var(--bg3);color:var(--text)}
.nav-item.active{background:var(--blue-soft);color:var(--blue)}
.side-foot{padding:14px 22px 0;border-top:1px solid var(--border);margin-top:12px}
.user-name{font-size:13px;font-weight:700}
.user-role{font-size:11px;color:var(--text3)}

main{flex:1;overflow-y:auto;height:100vh}
.page{padding:28px 32px;max-width:1100px}
.page-title{font-size:22px;font-weight:800;margin-bottom:6px}
.page-desc{color:var(--text2);font-size:13px;margin-bottom:20px}
.loading,.empty{color:var(--text3);text-align:center;padding:40px;font-size:13px}

/* ---- stat ---- */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;margin-bottom:20px}
.stat-card{background:var(--bg2);border:1px solid var(--border);border-radius:12px;padding:16px 18px}
.stat-label{font-size:11px;color:var(--text3);font-weight:700;text-transform:uppercase;letter-spacing:.5px}
.stat-val{font-size:26px;font-weight:800;margin-top:4px}

/* ---- card ---- */
.card{background:var(--bg2);border:1px solid var(--border);border-radius:12px;padding:18px 20px;margin-bottom:14px}
.card-title{font-size:14px;font-weight:700;margin-bottom:12px}
.info-card{background:var(--blue-soft);border-color:rgba(94,160,255,.3)}
.info-card strong{color:var(--blue);font-size:13px}
.info-card p{font-size:12px;color:var(--text2);margin-top:4px}
.recent-row{display:flex;justify-content:space-between;padding:8px 0;border-bottom:1px solid var(--border);font-size:13px}
.recent-row:last-child{border-bottom:none}
.rr-co{font-weight:600}
.rr-meta{color:var(--text3);font-size:12px}

/* ---- filter ---- */
.filter-bar{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.filter-bar input{background:var(--bg3);border:1px solid var(--border2);border-radius:8px;color:var(--text);padding:8px 12px;font-size:13px}
.filter-bar input[type=text]{flex:1;min-width:200px}

/* ---- buttons ---- */
.btn-primary{background:var(--blue);color:#0f1419;border:none;border-radius:8px;padding:9px 18px;font-size:13px;font-weight:700}
.btn-primary:hover{filter:brightness(1.1)}
.btn-primary:disabled{opacity:.5;cursor:wait}
.btn-ghost{background:transparent;border:1px solid var(--border2);color:var(--text2);border-radius:8px;padding:9px 16px;font-size:13px;font-weight:600}
.btn-ghost:hover{background:var(--bg3);color:var(--text)}
.btn-icon{background:transparent;border:1px solid var(--border2);color:var(--text3);border-radius:6px;padding:6px 12px;font-size:12px}
.btn-icon:hover{border-color:var(--red);color:var(--red)}

/* ---- recordings ---- */
.rec-list{display:flex;flex-direction:column;gap:10px}
.rec-card{background:var(--bg2);border:1px solid var(--border);border-radius:12px;padding:14px 18px}
.rec-card:hover{border-color:var(--border2)}
.rec-head{margin-bottom:10px}
.rec-co{font-size:15px;font-weight:700}
.rec-sub{display:flex;gap:12px;flex-wrap:wrap;font-size:12px;color:var(--text3);margin-top:3px}
.tag{background:var(--bg3);color:var(--text3);padding:1px 8px;border-radius:5px;font-size:10px;font-weight:700}
.tag-zoom{background:var(--blue-soft);color:var(--blue)}
.rec-player{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.rec-player audio{flex:1;min-width:220px;height:36px}
.rate-sel{background:var(--bg3);border:1px solid var(--border2);color:var(--text2);border-radius:6px;padding:5px 8px;font-size:12px}

/* ---- upload ---- */
.upload-form{display:flex;flex-direction:column;gap:14px;max-width:480px}
.fld{display:flex;flex-direction:column;gap:5px}
.fld span{font-size:12px;color:var(--text2);font-weight:600}
.fld em{color:var(--red);font-style:normal;font-size:10px;margin-left:4px}
.fld input{background:var(--bg3);border:1px solid var(--border2);border-radius:8px;color:var(--text);padding:9px 12px;font-size:13px}
.up-meta{font-size:12px;color:var(--text3)}

/* ---- toast ---- */
#toast{position:fixed;bottom:24px;left:50%;transform:translateX(-50%) translateY(80px);background:var(--bg3);border:1px solid var(--border2);color:var(--text);padding:12px 22px;border-radius:10px;font-size:13px;font-weight:600;opacity:0;transition:all .3s;z-index:9999;box-shadow:0 8px 24px rgba(0,0,0,.4);pointer-events:none}
#toast.toast-show{transform:translateX(-50%) translateY(0);opacity:1}

@media(max-width:680px){
  .layout{flex-direction:column}
  .sidebar{width:100%;height:auto;position:static;flex-direction:column;padding:14px}
  .sidebar nav{flex-direction:row;flex-wrap:wrap}
  main{height:auto}
  .side-foot{display:none}
  .page{padding:20px 16px}
}