:root{
  --bg:#f3f5f7;--card:#fff;--ink:#17212b;--muted:#64748b;--brand:#16324f;--brand2:#285f88;
  --line:#dde3e8;--ok:#18794e;--warn:#a16207;--danger:#b42318;--shadow:0 8px 24px rgba(15,23,42,.08)
}
*{box-sizing:border-box} body{margin:0;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--ink)}
button,input,textarea,select{font:inherit}.app-shell{max-width:920px;margin:0 auto;min-height:100vh;background:var(--bg)}
.topbar{position:sticky;top:0;z-index:10;background:linear-gradient(135deg,var(--brand),#0f2236);color:white;padding:18px 18px 14px;display:flex;align-items:center;justify-content:space-between;gap:12px;box-shadow:0 2px 12px rgba(0,0,0,.12)}
.eyebrow{font-size:11px;letter-spacing:.12em;opacity:.78}.topbar h1{margin:3px 0 0;font-size:24px}.install-btn{border:0;border-radius:12px;padding:10px 12px;background:white;color:var(--brand);font-weight:700}
.content{padding:18px 16px 96px}.hero{background:linear-gradient(135deg,#fff,#eef5fb);border:1px solid var(--line);border-radius:20px;padding:18px;box-shadow:var(--shadow);margin-bottom:16px}.hero h2{margin:0 0 6px;font-size:22px}.hero p{margin:0;color:var(--muted)}
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:15px;box-shadow:var(--shadow)}
.card h3{margin:0 0 8px;font-size:17px}.card p{margin:4px 0;color:var(--muted);line-height:1.4}.metric{font-size:28px;font-weight:800;color:var(--brand)}
.section-title{display:flex;align-items:center;justify-content:space-between;margin:22px 2px 10px}.section-title h2{font-size:19px;margin:0}.pill{display:inline-flex;align-items:center;padding:5px 9px;border-radius:999px;background:#e8f0f7;color:var(--brand);font-size:12px;font-weight:700}
.btn{border:0;border-radius:12px;padding:11px 14px;background:var(--brand);color:white;font-weight:700}.btn.secondary{background:#e8eef4;color:var(--brand)}.btn.ghost{background:transparent;color:var(--brand);border:1px solid var(--line)}
.list{display:grid;gap:10px}.week{width:100%;text-align:left;background:white;border:1px solid var(--line);border-radius:14px;padding:14px;display:flex;gap:12px;align-items:flex-start}.week-num{min-width:44px;height:44px;border-radius:12px;background:#e8f0f7;color:var(--brand);display:grid;place-items:center;font-weight:800}.week strong{display:block}.week small{color:var(--muted)}
.detail-head{display:flex;gap:10px;align-items:center;margin-bottom:14px}.back{border:0;background:#e7edf3;border-radius:12px;padding:10px 12px;color:var(--brand);font-weight:800}.detail-grid{display:grid;gap:12px}.detail-block{background:white;border:1px solid var(--line);border-radius:15px;padding:14px}.detail-block h3{margin:0 0 8px}.detail-block ul{margin:8px 0 0 20px;padding:0}.detail-block li{margin-bottom:6px}
.group-card{background:white;border:1px solid var(--line);border-radius:16px;padding:16px}.group-card h3{margin:0 0 4px}.status-row{display:flex;justify-content:space-between;gap:10px;align-items:center;padding:12px 0;border-bottom:1px solid var(--line)}.status-row:last-child{border-bottom:0}.status-select{border:1px solid var(--line);background:white;border-radius:10px;padding:8px;max-width:150px}
.task-form{display:grid;grid-template-columns:1fr auto;gap:8px;margin-bottom:12px}.task-input{width:100%;border:1px solid var(--line);border-radius:12px;padding:12px;background:white}.task-item{display:flex;align-items:center;gap:10px;background:white;border:1px solid var(--line);border-radius:12px;padding:12px}.task-item.done .task-text{text-decoration:line-through;color:var(--muted)}.task-text{flex:1}.delete{border:0;background:#fef0ef;color:var(--danger);border-radius:10px;padding:8px 10px}
.note{width:100%;min-height:110px;border:1px solid var(--line);border-radius:12px;padding:12px;resize:vertical;background:#fff}.mini{font-size:12px;color:var(--muted)}
.bottom-nav{position:fixed;left:50%;transform:translateX(-50%);bottom:0;width:min(920px,100%);display:grid;grid-template-columns:repeat(5,1fr);background:white;border-top:1px solid var(--line);padding:8px 6px calc(8px + env(safe-area-inset-bottom));z-index:20}.nav-btn{border:0;background:transparent;color:var(--muted);display:flex;flex-direction:column;align-items:center;gap:2px;padding:6px 2px;border-radius:10px}.nav-btn span{font-size:21px}.nav-btn small{font-size:11px}.nav-btn.active{color:var(--brand);background:#eef4f8;font-weight:800}
.notice{border-left:4px solid var(--warn);background:#fff8e8;padding:12px 14px;border-radius:10px}.backup-actions{display:flex;flex-wrap:wrap;gap:8px}.file-label{display:inline-flex;align-items:center;cursor:pointer}.file-label input{display:none}
@media(min-width:700px){.content{padding-left:24px;padding-right:24px}.grid{grid-template-columns:repeat(4,minmax(0,1fr))}.detail-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.topbar{padding-left:24px;padding-right:24px}}