:root{--bg:#fbf8ff;--g1:#efe6ff;--g2:#fdeaf6;--card:rgba(255,255,255,.88);--text:#3b3152;--muted:#8d82a8;--accent:#a78bdf;--navy:#8468c8;--line:rgba(132,104,200,.1);--shadow:0 1px 2px rgba(132,104,200,.06),0 10px 28px -12px rgba(132,104,200,.2);--tint:rgba(167,139,223,.16);color-scheme:light}
@media(prefers-color-scheme:dark){:root{--bg:#1a1426;--g1:#33264f;--g2:#42274f;--card:rgba(42,33,62,.93);--text:#f3eefb;--muted:#bdb1d8;--accent:#c7b2ff;--navy:#8468c8;--line:rgba(189,177,216,.14);--shadow:0 10px 28px -10px rgba(0,0,0,.45);--tint:rgba(199,178,255,.16);color-scheme:dark}}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;min-height:100%}
body{font:400 16px/1.4 "DM Sans",system-ui,sans-serif;color:var(--text);background:var(--bg) radial-gradient(circle at 0 0,var(--g1),transparent 55%) no-repeat,radial-gradient(circle at 100% 0,var(--g2),transparent 50%) no-repeat;background-attachment:fixed}
#app{max-width:480px;margin:0 auto;padding:calc(env(safe-area-inset-top,0px) + 18px) 16px 140px}
h1{font-family:Fraunces,Georgia,serif;font-weight:600;font-size:32px;line-height:1.15;margin:0}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer;padding:0}
.meta{font-size:13px;color:var(--muted)}
.card{background:var(--card);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border:1px solid rgba(255,255,255,.5);border-radius:24px;padding:16px;margin-bottom:10px;box-shadow:var(--shadow)}
.btn{background:var(--navy);color:#fff;font-weight:700;font-size:15px;border-radius:999px;padding:12px 22px}
.btn.ghost{background:var(--card);color:var(--muted);box-shadow:var(--shadow)}
.btn.danger{background:none;color:#c0507a;box-shadow:none}
.top{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px}
.pill{background:var(--card);color:var(--muted);box-shadow:var(--shadow);border-radius:999px;padding:8px 14px;font-size:14px;font-weight:500}
.login{text-align:center;padding-top:20vh}
.login .meta{margin:8px 0 26px}
.err{color:#c0507a;font-size:14px;margin-top:16px}
details.card{padding:0}
summary{list-style:none;display:flex;justify-content:space-between;align-items:center;padding:16px;font-weight:700;cursor:pointer}
summary::-webkit-details-marker{display:none}
summary::after{content:"";width:8px;height:8px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:rotate(45deg);transition:transform .2s}
details[open] summary::after{transform:rotate(-135deg)}
.list{padding:0 16px 6px}
.item{display:flex;gap:12px;align-items:center;padding:12px 0;border-top:1px solid var(--line)}
.chk{width:28px;height:28px;border-radius:50%;border:2px solid var(--muted);display:grid;place-items:center;flex:none;color:transparent;font-size:15px;font-weight:700}
.chk.rec{border-style:dashed}
.chk.on{background:var(--accent);border-color:var(--accent);color:#fff}
.body{flex:1;min-width:0;text-align:left}
.title{font-weight:700;overflow-wrap:anywhere}
.done .title{text-decoration:line-through;color:var(--muted)}
.flag{color:#e0709a;font-weight:700}
.empty{padding:14px 0 18px;color:var(--muted);font-size:14px}
.fab{position:fixed;right:max(18px,calc(50% - 222px));bottom:calc(env(safe-area-inset-bottom,0px) + 24px);box-shadow:0 10px 24px -6px rgba(132,104,200,.4)}
.sheetbg{position:fixed;inset:0;background:rgba(20,10,40,.4);z-index:30;display:none;align-items:flex-end;justify-content:center}
.sheetbg.show{display:flex}
.sheet{background:var(--bg);width:100%;max-width:480px;max-height:92dvh;overflow-y:auto;border-radius:26px 26px 0 0;padding:20px 16px calc(env(safe-area-inset-bottom,0px) + 20px)}
.sheet h2{font-family:Fraunces,serif;font-weight:600;font-size:22px;margin:0 0 6px}
.sheet label{display:block;font-size:13px;color:var(--muted);margin-top:10px}
.sheet input:not([type=checkbox]),.sheet select{width:100%;font:inherit;color:var(--text);background:var(--card);border:1px solid var(--line);border-radius:16px;padding:12px 14px;margin-top:4px}
.sheet .check{display:flex;align-items:center;gap:8px;margin-top:14px;color:var(--text);font-size:15px}
.sheet .check input{width:20px;height:20px}
.row{display:flex;gap:10px;margin-top:18px}
.row .btn{flex:1}
.toast{position:fixed;left:50%;bottom:90px;transform:translateX(-50%);background:var(--navy);color:#fff;padding:10px 18px;border-radius:999px;font-size:14px;opacity:0;pointer-events:none;transition:opacity .2s;z-index:40;max-width:90%}
.toast.show{opacity:1}