:root{
  --bg:#fbf7ee; --card:#ffffff; --ink:#242a3a; --muted:#7a7f92;
  --accent:#e2574c; --accent-soft:#fdeae7; --sun:#f2a93b; --sun-soft:#fdf3dd;
  --done:#2f9e63; --done-soft:#e4f4ec; --line:#eee4d4;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);
  font-family:system-ui,-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  line-height:1.55}
.wrap{max-width:680px;margin:0 auto;padding:0 20px 60px}
a{color:var(--accent)}

/* header */
header.site{padding:26px 0 6px;display:flex;align-items:flex-end;justify-content:space-between;flex-wrap:wrap;gap:10px}
.brand{font-size:1.3rem;font-weight:800;letter-spacing:-.01em}
.brand .dot{color:var(--accent)}
.brand small{display:block;font-size:.7rem;font-weight:600;color:var(--muted);letter-spacing:.07em;text-transform:uppercase;margin-top:2px}
nav{display:flex;gap:8px}
nav a{text-decoration:none;color:var(--muted);font-weight:700;font-size:.9rem;padding:7px 16px;border-radius:999px}
nav a:hover{color:var(--ink)}
nav a.on{background:var(--ink);color:#fff}

main{margin-top:20px}
.card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:26px 28px;box-shadow:0 1px 3px rgba(36,42,58,.05)}
.card.empty{text-align:center;padding:48px 28px}
.card.empty h1{font-size:1.3rem;margin:0 0 8px}

/* topic page */
.topline{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:10px}
.badge{display:inline-flex;align-items:center;font-size:.74rem;font-weight:800;letter-spacing:.05em;text-transform:uppercase;border-radius:999px;padding:5px 12px}
.badge.today{background:var(--sun-soft);color:#8a5a00}
.badge.day{background:var(--accent-soft);color:var(--accent)}
.back{font-size:.85rem;font-weight:700;text-decoration:none;margin-left:auto}
.date{color:var(--muted);font-size:.95rem;margin:0 0 4px}
.t-title{font-size:1.75rem;line-height:1.25;margin:0 0 14px;letter-spacing:-.01em}
.prompt{font-size:1.08rem;white-space:normal;overflow-wrap:break-word}
.prompt p{margin:0 0 10px}

.btn-done{display:block;width:100%;margin-top:22px;border:0;cursor:pointer;
  background:var(--accent);color:#fff;font:inherit;font-weight:800;font-size:1.05rem;
  padding:15px;border-radius:14px;transition:filter .15s}
.btn-done:hover{filter:brightness(.94)}
.done-banner{display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:22px;background:var(--done-soft);color:#1d6b46;border-radius:14px;padding:14px 18px;font-size:1.02rem}
.inline-form{display:inline}
.linklike{background:none;border:0;color:var(--muted);text-decoration:underline;cursor:pointer;font:inherit;font-size:.85rem;padding:0}
.linklike:hover{color:var(--ink)}
.future-note{color:var(--muted);font-size:.92rem;margin-top:18px}

/* archive */
.arch-head h1{margin:0 0 2px;font-size:1.5rem}
.arch-head .sub{margin:0;color:var(--muted);font-size:.95rem}
.filters{display:flex;gap:8px;margin-top:16px;flex-wrap:wrap}
.filters a{text-decoration:none;color:var(--muted);font-weight:700;font-size:.88rem;
  padding:7px 14px;border-radius:999px;border:1.5px solid var(--line)}
.filters a:hover{color:var(--ink)}
.filters a.on{background:var(--ink);color:#fff;border-color:var(--ink)}
.arch-list{list-style:none;margin:18px 0 0;padding:0;display:flex;flex-direction:column;gap:8px}
.arch-row{background:var(--card);border:1px solid var(--line);border-radius:14px;overflow:hidden}
.arch-row a{display:flex;align-items:center;gap:12px;padding:13px 16px;text-decoration:none;color:inherit}
.arch-row:hover{border-color:#dccfba}
.a-date{flex:0 0 118px;color:var(--muted);font-size:.82rem;font-weight:600}
.a-title{flex:1 1 auto;font-weight:700;font-size:.98rem;line-height:1.35}
.arch-row.is-done .a-title{color:var(--muted)}
.arch-row .edit-link{margin-left:auto;padding-right:16px;font-size:.78rem;font-weight:700;color:var(--muted);text-decoration:none}
.arch-row .edit-link:hover{color:var(--accent)}
.chip{flex:0 0 auto;font-size:.72rem;font-weight:800;border-radius:999px;padding:4px 10px}
.chip-done{background:var(--done-soft);color:var(--done)}
.chip-todo{background:var(--sun-soft);color:#8a5a00}

.foot{margin-top:34px;text-align:center;color:#b5a98f;font-size:.8rem}
.foot a{color:inherit;text-decoration:underline;text-decoration-color:#d8cdb8;text-underline-offset:2px}
.foot a:hover{color:var(--ink)}

/* admin header */
.topline .logout-form{margin-left:auto}
.logout-form button{background:none;border:0;cursor:pointer;font:inherit;font-size:.85rem;font-weight:700;color:var(--accent);padding:0}
.logout-form button:hover{text-decoration:underline}

/* forms / admin */
.lbl{display:block;font-size:.85rem;font-weight:700;color:var(--muted);margin:12px 0 4px}
.inp{width:100%;border:1.5px solid var(--line);border-radius:10px;padding:10px 12px;font:inherit;background:#fff;color:var(--ink)}
.inp:focus{outline:none;border-color:var(--accent)}
textarea.inp{resize:vertical;line-height:1.5}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.chk{display:flex;align-items:center;gap:8px;margin-top:14px;font-size:.95rem;font-weight:600;cursor:pointer}
.chk input{width:18px;height:18px;accent-color:var(--done)}
.okbox{background:var(--done-soft);color:#1d6b46;border-radius:12px;padding:12px 16px;margin:0 0 14px;font-weight:600}
.errbox{background:#fdecea;color:#b3261e;border-radius:12px;padding:12px 16px;margin:0 0 14px;font-weight:600}

@media (max-width:520px){
  .grid2{grid-template-columns:1fr}
  .arch-row a{flex-wrap:wrap;gap:6px}
  .a-date{flex:1 1 100%}
  .t-title{font-size:1.5rem}
  .card{padding:20px}
}