:root{
  --navy:#1b2a4e; --green:#1f9d6b; --ink:#1d2433; --muted:#6b7280;
  --line:#e6e8ee; --bg:#f5f6f9; --card:#fff; --radius:14px;
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.5}
a{color:var(--green);text-decoration:none}
.top{display:flex;justify-content:space-between;align-items:center;padding:14px 18px;
  background:var(--navy);color:#fff;position:sticky;top:0;z-index:10}
.top .brand{color:#fff;font-weight:700;font-size:18px}
.top .logout{color:#cdd6e5;font-size:14px}
.wrap{max-width:760px;margin:0 auto;padding:18px}

/* auth */
.auth{max-width:380px;margin:8vh auto;background:var(--card);padding:28px;border-radius:var(--radius);
  box-shadow:0 6px 28px rgba(27,42,78,.10)}
.auth h1{margin:0 0 18px;font-size:22px}
.auth label{display:block;margin-bottom:14px;font-size:13px;color:var(--muted)}
.auth label.row{display:flex;align-items:center;gap:8px;color:var(--ink)}
.auth input{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:10px;font-size:16px;margin-top:5px}
.auth label.row input{width:auto;margin:0}
button{background:var(--green);color:#fff;border:0;padding:11px 18px;border-radius:10px;
  font-size:15px;font-weight:600;cursor:pointer}
button:hover{filter:brightness(.96)}
.err{background:#fde8e8;color:#b42318;padding:10px 12px;border-radius:8px;font-size:14px}
.hint{color:var(--muted);font-size:13px;margin-top:14px}

/* search + list */
.search{display:flex;gap:8px;margin-bottom:16px}
.search input{flex:1;padding:11px 12px;border:1px solid var(--line);border-radius:10px;font-size:16px}
.grid{display:grid;grid-template-columns:1fr;gap:12px}
@media(min-width:560px){.grid{grid-template-columns:1fr 1fr}}
.proj{display:block;background:var(--card);padding:14px 16px;border-radius:var(--radius);
  border:1px solid var(--line)}
.proj-h{display:flex;gap:8px;align-items:baseline}
.proj .code{color:var(--muted);font-size:12px}
.proj .title{font-weight:700;color:var(--ink)}
.proj .sub{font-size:14px;color:var(--ink)}
.proj .sub.muted{color:var(--muted);font-size:13px}
.badge{display:inline-block;margin-top:8px;background:#eef6f2;color:var(--green);
  padding:3px 9px;border-radius:20px;font-size:12px;font-weight:600}
.empty{color:var(--muted);text-align:center;padding:40px 0}

/* card */
.back{display:inline-block;margin-bottom:12px;font-size:14px}
.card-head{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}
.card-head h1{font-size:21px;margin:0}
.card-head .code{color:var(--muted);font-size:13px;font-weight:400}
.sec{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:16px;margin-top:14px}
.sec h2{font-size:15px;margin:0 0 10px;color:var(--navy)}
.kv{display:flex;justify-content:space-between;gap:12px;padding:6px 0;border-bottom:1px solid var(--line);font-size:14px}
.kv:last-child{border-bottom:0}
.kv span{color:var(--muted)}
.meas{font-size:14px;padding:5px 0;border-bottom:1px dashed var(--line)}
.muted{color:var(--muted)}
select,input,textarea{font-family:inherit}
.inline select{padding:7px 10px;border:1px solid var(--line);border-radius:9px;font-size:13px}
.edit{margin-top:10px}
.edit summary{color:var(--green);font-size:13px;cursor:pointer}
.stack{display:flex;flex-direction:column;gap:8px;margin-top:10px}
.stack input,.stack select,.stack textarea{padding:10px;border:1px solid var(--line);border-radius:9px;font-size:15px}
.stack textarea{min-height:64px;resize:vertical}
.notes{list-style:none;padding:0;margin:12px 0 0}
.notes li{padding:8px 0;border-bottom:1px solid var(--line);font-size:14px}
.notes .when{display:block;color:var(--muted);font-size:12px}
.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:10px}
.att{background:#fafbfc;border:1px solid var(--line);border-radius:10px;padding:8px;font-size:12px}
.att img{width:100%;height:90px;object-fit:cover;border-radius:7px}
.att-desc{color:var(--muted);margin-top:5px}
.att-status{color:#b42318;margin-top:4px}
.filelink{display:block;padding:18px 6px;text-align:center;background:#eef1f6;border-radius:7px}