:root{
  --bg:#fbf8f3;--surface:#fff;--surface2:#f3eee5;--text:#1f2a29;--muted:#51605e;--line:#ddd5c6;
  --brand:#0f6b63;--brand-ink:#fff;--accent:#b4531c;--warn-bg:#fff4dc;--warn-line:#d9a63b;--warn-ink:#6b4a05;
  --sel:#e2f0ed;--focus:#1a56c8;
}
@media (prefers-color-scheme:dark){
  :root{--bg:#121816;--surface:#1b2422;--surface2:#222d2a;--text:#eaf0ee;--muted:#a8b8b4;--line:#34423f;
  --brand:#5fc7b8;--brand-ink:#0b1a17;--accent:#f09a62;--warn-bg:#35290f;--warn-line:#a27a1f;--warn-ink:#f0d9a0;
  --sel:#1d3a35;--focus:#8db0ff}
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:1rem/1.6 system-ui,-apple-system,"Segoe UI",Roboto,"Noto Sans","Noto Sans JP","Hiragino Sans","Noto Sans TC","PingFang TC",sans-serif}
a{color:var(--brand)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible{outline:3px solid var(--focus);outline-offset:2px}
.skip{position:absolute;left:-999px;top:0;background:var(--brand);color:var(--brand-ink);padding:.5rem 1rem;z-index:30}
.skip:focus{left:0}
.wrap{max-width:1160px;margin:0 auto;padding:0 16px}
h1,h2,h3{line-height:1.25;margin:0 0 .5rem}
h1{font-size:clamp(1.5rem,2.6vw+.6rem,2.1rem);max-width:30ch}
h2{font-size:1.2rem}
p{margin:0 0 .75rem}
.eyebrow{font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);font-weight:700;margin:0 0 .3rem}
.lead{font-size:1.08rem;color:var(--muted);max-width:68ch}
.hint{font-size:.85rem;color:var(--muted);margin:.1rem 0 .5rem}

header.top{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:56px;flex-wrap:wrap;padding-top:6px;padding-bottom:6px}
.brand{display:flex;align-items:center;gap:8px;font-weight:700;color:var(--text);text-decoration:none}
.bar-right{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.back{font-size:.9rem}
.seg{display:inline-flex;border:1px solid var(--line);border-radius:999px;overflow:hidden;background:var(--surface)}
.seg button{border:0;background:transparent;color:var(--text);font:inherit;font-size:.9rem;padding:.35rem .85rem;cursor:pointer}
.seg button[aria-pressed="true"]{background:var(--brand);color:var(--brand-ink);font-weight:700}

.hero{padding:1.4rem 0 1.2rem;border-bottom:1px solid var(--line);background:linear-gradient(180deg,var(--surface2),var(--bg))}
.pill{display:inline-block;font-size:.8rem;border:1px solid var(--warn-line);background:var(--warn-bg);color:var(--warn-ink);padding:.15rem .7rem;border-radius:999px;margin-bottom:.8rem}
.two{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:1.2rem}
.card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:1rem 1.1rem}
.card p:last-child{margin-bottom:0}

.hero .btns{margin-top:.9rem}
.prefs,.out{scroll-margin-top:72px}
.app{display:grid;grid-template-columns:340px minmax(0,1fr);gap:20px;padding-top:1.4rem;padding-bottom:2rem;align-items:start}
.prefs{position:sticky;top:72px;max-height:calc(100vh - 88px);overflow:auto}
fieldset{border:0;padding:0;margin:0 0 1rem}
legend{font-weight:700;padding:0;margin-bottom:.15rem;font-size:.95rem}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{font:inherit;font-size:.85rem;border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:999px;padding:.25rem .7rem;cursor:pointer}
.chip[aria-pressed="true"]{background:var(--brand);color:var(--brand-ink);border-color:var(--brand);font-weight:600}
.checks,.radios{display:grid;gap:.25rem}
.check,.opt{display:flex;gap:.5rem;align-items:flex-start;font-size:.92rem;cursor:pointer}
.check input,.opt input{margin-top:.28rem;accent-color:var(--brand)}
.field{margin-bottom:1rem}
.field label{display:block;font-weight:700;font-size:.95rem;margin-bottom:.25rem}
input[type=email]{width:100%;font:inherit;padding:.5rem .65rem;border:1px solid var(--line);border-radius:8px;background:var(--surface);color:var(--text)}
.btns{display:flex;flex-wrap:wrap;gap:8px}
.btn{font:inherit;font-size:.92rem;border:1px solid var(--line);background:var(--surface);color:var(--text);border-radius:10px;padding:.45rem .9rem;cursor:pointer;text-decoration:none;display:inline-block}
.btn:hover{border-color:var(--brand)}
.btn.primary{background:var(--brand);color:var(--brand-ink);border-color:var(--brand);font-weight:700}
.btn.ghost{background:transparent}
.btn.small{font-size:.85rem;padding:.3rem .7rem}
.msg{margin:.8rem 0 0;font-size:.9rem;color:var(--muted);min-height:1.2em}
.msg.ok{color:var(--brand);font-weight:600}

.tabs{display:flex;gap:4px;border-bottom:1px solid var(--line);margin-bottom:1rem;flex-wrap:wrap}
.tabs button{font:inherit;border:1px solid transparent;border-bottom:0;background:transparent;color:var(--muted);padding:.55rem .95rem;border-radius:10px 10px 0 0;cursor:pointer}
.tabs button[aria-selected="true"]{background:var(--surface);border-color:var(--line);color:var(--text);font-weight:700;margin-bottom:-1px}
.toolbar{display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;margin-bottom:.6rem}
.count{margin:0;font-weight:600}
.list{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.ev{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:.9rem 1.05rem}
.ev h3{font-size:1.05rem;margin:.25rem 0 .1rem}
.orig{font-size:.85rem;color:var(--muted);margin:0 0 .4rem}
.meta{display:flex;flex-wrap:wrap;gap:4px 14px;font-size:.9rem;color:var(--muted);margin:.35rem 0}
.meta b{color:var(--text);font-weight:600}
.tags{display:flex;flex-wrap:wrap;gap:6px;align-items:center}
.tag{font-size:.75rem;border:1px solid var(--line);background:var(--surface2);border-radius:6px;padding:.05rem .45rem;color:var(--text)}
.tag.kind{background:var(--sel);border-color:transparent;font-weight:700}
.tag.warn{background:var(--warn-bg);border-color:var(--warn-line);color:var(--warn-ink);font-weight:600}
.tag.lang{border-style:dashed}
.blurb{margin:.45rem 0 .2rem}
.note{font-size:.85rem;color:var(--muted);margin:.2rem 0 0}
.acts{display:flex;flex-wrap:wrap;gap:8px;margin-top:.6rem}
.empty{border:1px dashed var(--line);border-radius:14px;padding:1.2rem;color:var(--muted);background:var(--surface)}

.planline{font-size:.9rem;margin:0 0 .6rem;color:var(--muted)}
.planline b{color:var(--brand)}
/* the email is always drawn light, like a real inbox */
.mail{background:#e9ecef;border:1px solid var(--line);border-radius:14px;padding:14px;color:#1d2327}
.mail .head{background:#fff;border-radius:10px 10px 0 0;padding:.8rem 1rem;border-bottom:1px solid #dde1e5;font-size:.85rem;color:#4a555d}
.mail .head p{margin:0}
.mail .head .subj{font-size:1.05rem;font-weight:700;color:#1d2327;margin-bottom:.25rem}
.mail .body{background:#fff;border-radius:0 0 10px 10px;padding:1.1rem 1.2rem 1.3rem;font-size:.95rem}
.mail h3{font-size:1.1rem;margin:0 0 .4rem;color:#0b5a53}
.mail h4{margin:1.3rem 0 .4rem;font-size:.78rem;letter-spacing:.1em;text-transform:uppercase;color:#9a4614;border-bottom:1px solid #e6e1d6;padding-bottom:.25rem}
.mail .item{padding:.55rem 0;border-bottom:1px solid #eef0f2}
.mail .item:last-of-type{border-bottom:0}
.mail .item a.t{font-weight:700;color:#0b5a53;text-decoration:none}
.mail .item a.t:hover{text-decoration:underline}
.mail .item .o{font-size:.8rem;color:#5d676f;margin:0}
.mail .item .m{font-size:.85rem;color:#3c474e;margin:.15rem 0}
.mail .item .b{font-size:.88rem;margin:.15rem 0 0}
.mail .item .w{display:inline-block;font-size:.75rem;background:#fff3dc;border:1px solid #d9a63b;color:#6b4a05;border-radius:5px;padding:0 .4rem;margin-left:.4rem;font-weight:600}
.mail .foot{margin-top:1.2rem;padding-top:.8rem;border-top:1px solid #e6e1d6;font-size:.78rem;color:#5d676f}
.mail .foot a{color:#0b5a53}
.mail .none{color:#5d676f;font-style:italic}

.notes{padding-bottom:2.5rem}
.caveat{background:var(--warn-bg);border:1px solid var(--warn-line);color:var(--warn-ink);border-radius:12px;padding:.8rem 1rem;margin-bottom:1rem}
.notes ul{padding-left:1.2rem;color:var(--muted)}
.notes li{margin-bottom:.35rem}
.foot{border-top:1px solid var(--line);padding:1.2rem 0;color:var(--muted);font-size:.88rem}

@media (max-width:900px){
  .app{grid-template-columns:1fr}
  .prefs{position:static;max-height:none}
  .two{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}