/* Gia Phả — CSS dùng chung cho các trang phụ (landing, trang công khai).
   Tokens đồng bộ với css/style.css của app chính. */
:root{
  --paper:#faf5ea; --paper2:#f3ecda; --ink:#2e2418; --ink-soft:#6b5c44;
  --seal:#a63a2b; --seal-dark:#8f3124; --gold:#c19a3d; --gold-soft:#e8d5a3;
  --pine:#20302a; --pine2:#2c4238; --line:#d9cba8;
  --card:#fffdf7; --danger:#a63a2b; --ok:#1d6b3c;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family:'Be Vietnam Pro',system-ui,-apple-system,sans-serif; color:var(--ink);
  background:var(--paper2);
  background-image:radial-gradient(circle at 20% 10%, rgba(193,154,61,.06), transparent 40%),
                   radial-gradient(circle at 90% 90%, rgba(166,58,43,.05), transparent 40%);
  min-height:100vh;
}
h1,h2,h3{font-family:'Playfair Display',Georgia,serif; color:var(--ink); margin:.4em 0}
.muted{color:var(--ink-soft)} .muted-sm{color:var(--ink-soft); font-size:12px}
.center{text-align:center}
.hidden{display:none !important}
.wrap{max-width:1060px;margin:0 auto;padding:0 20px}

/* ---------- topbar dùng chung (đồng bộ với app) ---------- */
.site-topbar{
  display:flex; align-items:center; gap:14px; padding:12px 22px;
  background:linear-gradient(180deg,#24382f,#1b2a23); color:var(--paper);
  border-bottom:3px solid var(--gold); position:sticky; top:0; z-index:50;
}
.site-topbar .brand{display:flex; align-items:center; gap:12px; text-decoration:none; color:inherit}
.site-topbar .brand-mark{font-size:32px; filter:drop-shadow(0 2px 3px rgba(0,0,0,.4))}
.site-topbar .brand-title{font-family:'Playfair Display',serif; font-size:22px; font-weight:800; letter-spacing:2px; color:var(--gold-soft)}
.site-topbar .brand-sub{font-size:12px; color:#cbbf9f}
.site-topbar nav{margin-left:auto; display:flex; gap:10px; align-items:center}
.site-topbar nav a{color:var(--paper); text-decoration:none; font-size:14px}
.site-topbar nav a:hover{color:var(--gold-soft)}

/* ---------- nút ---------- */
.btn{
  display:inline-block; font-family:inherit; font-size:14px; font-weight:600;
  padding:10px 18px; border-radius:10px; cursor:pointer;
  border:1px solid var(--line); background:var(--card); color:var(--ink);
  text-decoration:none; transition:transform .08s;
}
.btn:active{transform:scale(.97)}
.btn.primary{background:var(--seal); border-color:var(--seal); color:#fff; box-shadow:0 3px 10px rgba(166,58,43,.3)}
.btn.primary:hover{background:var(--seal-dark)}
.btn.pine{background:var(--pine); border-color:var(--pine); color:#fff}
.btn.pine:hover{background:var(--pine2)}
.btn.ghost{background:transparent; color:var(--ink)}
.btn.ghost:hover{background:var(--paper2)}
.btn.on-dark{background:transparent; border-color:#5a6e62; color:#f3ecda}
.btn.on-dark:hover{border-color:var(--gold); color:var(--gold-soft)}
.btn.sm{padding:7px 12px; font-size:13px; border-radius:8px}
.btn.big{padding:13px 26px; font-size:16px}

/* ---------- thẻ ---------- */
.card{
  background:var(--card); border:1px solid var(--line); border-radius:14px;
  padding:20px; box-shadow:0 2px 10px rgba(46,36,24,.06);
}
.notice{margin:14px 0; padding:11px 15px; border-radius:10px; font-size:13px}
.notice.privacy{background:#fff8e6; border:1px solid var(--gold); color:#7a5c14}
.notice.err{background:#fdeceb; border:1px solid var(--seal); color:var(--seal)}
.notice.ok{background:#e9f5ec; border:1px solid var(--ok); color:var(--ok)}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--line); padding:22px 0; color:var(--ink-soft); font-size:13px; text-align:center}
.site-footer .fbrand{font-family:'Playfair Display',serif; font-weight:700; color:var(--ink)}

/* ---------- form ---------- */
.field label{display:block; font-size:13px; color:var(--ink-soft); margin:10px 0 4px}
.field input,.field select,.field textarea{
  width:100%; padding:11px 12px; border:1px solid var(--line); border-radius:10px;
  font-size:15px; font-family:inherit; background:#fff; color:var(--ink);
}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--gold-soft); border-color:var(--gold)}