*{box-sizing:border-box}
:root{
  --bg:#0b1120;--panel:rgba(30,41,59,.68);--panel2:rgba(15,23,42,.82);
  --line:rgba(148,163,184,.18);--text:#f8fafc;--muted:#94a3b8;
  --accent:#0ea5e9;--accent2:#38bdf8;--good:#10b981;--danger:#ef4444;
}
body{
  margin:0;font-family:-apple-system,BlinkMacSystemFont,"Noto Sans JP","Segoe UI",sans-serif;
  color:var(--text);background:
  radial-gradient(circle at 10% 10%,rgba(14,165,233,.22),transparent 28%),
  radial-gradient(circle at 90% 20%,rgba(16,185,129,.16),transparent 26%),
  var(--bg);min-height:100vh;
}
button,input,textarea,select{font:inherit}
.app-shell{display:flex;min-height:100vh}
.sidebar{
  width:270px;padding:22px;background:var(--panel2);border-right:1px solid var(--line);
  backdrop-filter:blur(18px);position:sticky;top:0;height:100vh;
}
.brand{display:flex;gap:12px;align-items:center;margin-bottom:28px}
.brand img{width:48px;height:48px;border-radius:14px}
.brand h1{font-size:24px;line-height:1;margin:0;color:var(--accent2)}
.brand p{font-size:13px;color:var(--muted);margin:6px 0 0}
.nav-list{display:flex;flex-direction:column;gap:10px}
.nav-item{
  width:100%;padding:13px 14px;border:1px solid transparent;border-radius:14px;
  background:transparent;color:var(--muted);text-align:left;cursor:pointer;transition:.2s;
}
.nav-item:hover,.nav-item.active{background:rgba(14,165,233,.14);border-color:rgba(56,189,248,.22);color:var(--text)}
.main-content{flex:1;padding:28px;overflow-x:hidden}
.page{display:none;animation:fade .18s ease}
.page.active{display:block}
@keyframes fade{from{opacity:.5;transform:translateY(4px)}to{opacity:1;transform:none}}
.page-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:22px}
.eyebrow{margin:0 0 4px;color:var(--accent2);font-size:12px;letter-spacing:.12em;text-transform:uppercase}
h2{font-size:28px;margin:0} h3{margin:0 0 14px}
.card,.stat-card{
  background:var(--panel);border:1px solid var(--line);border-radius:20px;padding:22px;
  box-shadow:0 14px 48px rgba(0,0,0,.24);backdrop-filter:blur(12px);margin-bottom:18px;
}
.card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px;flex-wrap:wrap}
.stats-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-bottom:18px}
.stat-card span{display:block;color:var(--muted);font-size:13px;margin-bottom:8px}
.stat-card strong{display:block;font-size:26px}
.form-card{display:grid;gap:10px}
label{font-size:13px;color:var(--muted)}
input,textarea,select{
  width:100%;padding:12px 13px;border-radius:13px;border:1px solid var(--line);
  background:rgba(15,23,42,.62);color:var(--text);outline:none;
}
input:focus,textarea:focus,select:focus{border-color:var(--accent)}
.primary-btn,.ghost-btn,.danger-btn{
  border:0;border-radius:13px;padding:12px 16px;cursor:pointer;transition:.2s;
}
.primary-btn{background:linear-gradient(135deg,var(--accent),var(--accent2));color:white;font-weight:700}
.ghost-btn{background:rgba(255,255,255,.06);border:1px solid var(--line);color:var(--text)}
.danger-btn{background:rgba(239,68,68,.16);color:#fecaca;border:1px solid rgba(239,68,68,.28);padding:8px 10px;border-radius:10px}
.primary-btn:hover,.ghost-btn:hover,.danger-btn:hover{transform:translateY(-1px)}
.list{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.list li{
  display:flex;justify-content:space-between;gap:10px;align-items:flex-start;
  padding:13px;border:1px solid var(--line);border-radius:14px;background:rgba(15,23,42,.42)
}
.item-main strong{display:block;margin-bottom:4px}
.item-main small{color:var(--muted)}
.muted{color:var(--muted);font-size:13px}
.mini-input{max-width:240px}
.calendar-actions{display:flex;gap:8px;flex-wrap:wrap}
.calendar-grid{display:grid;grid-template-columns:repeat(7,1fr);gap:9px}
.weekday{text-align:center;color:var(--muted);font-size:12px;padding:6px}
.day{
  min-height:82px;border:1px solid var(--line);border-radius:16px;background:rgba(15,23,42,.46);
  padding:10px;cursor:pointer;transition:.2s;position:relative;overflow:hidden
}
.day:hover{border-color:var(--accent);transform:translateY(-2px)}
.day.muted-day{opacity:.28;cursor:default}
.day.today{box-shadow:0 0 0 1px var(--accent)}
.day.has-log::after{content:"";position:absolute;right:10px;top:10px;width:8px;height:8px;border-radius:99px;background:var(--good)}
.day-num{font-weight:700;margin-bottom:10px}
.chip{display:block;font-size:11px;margin-top:4px;padding:3px 6px;border-radius:7px;background:rgba(14,165,233,.18);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.modal{display:none;position:fixed;inset:0;background:rgba(0,0,0,.62);align-items:center;justify-content:center;padding:18px;z-index:10}
.modal.active{display:flex}
.modal-box{width:min(460px,100%);max-height:86vh;overflow:auto;background:#111827;border:1px solid var(--line);border-radius:22px;padding:22px;box-shadow:0 18px 60px rgba(0,0,0,.55)}
.modal-close{float:right;background:transparent;color:var(--text);border:0;font-size:24px;cursor:pointer}
@media(max-width:768px){
  .app-shell{display:block}
  .sidebar{width:100%;height:auto;position:fixed;bottom:0;top:auto;left:0;z-index:5;padding:8px 10px calc(8px + env(safe-area-inset-bottom));border-right:0;border-top:1px solid var(--line)}
  .brand{display:none}
  .nav-list{flex-direction:row;gap:6px}
  .nav-item{font-size:11px;text-align:center;padding:10px 4px;border-radius:12px}
  .main-content{padding:18px 14px 92px}
  .page-head{align-items:flex-start;flex-direction:column}
  .stats-grid{grid-template-columns:1fr 1fr}
  .calendar-grid{gap:5px}
  .day{min-height:62px;padding:7px;border-radius:12px}
  .chip{display:none}
}