:root{
  --bg:#f3efe7;
  --panel:#fbf7ef;
  --card:#fffaf2;
  --white:#fff;
  --ink:#202020;
  --muted:#77716a;
  --line:#e8dfd2;
  --deep:#2e4a3f;
  --deep2:#38583d;
  --danger:#a4433d;
  --soft:#e8ebe3;
  --shadow:0 10px 30px rgba(48,38,20,.06);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",sans-serif;background:var(--bg);color:var(--ink)}
a{text-decoration:none;color:inherit}
.brand,.logo{font-family:Georgia,serif;letter-spacing:.04em;line-height:1.05}
.app{min-height:100vh;display:grid;grid-template-columns:250px 1fr}
.sidebar{background:#fffdf8;border-right:1px solid var(--line);padding:24px 18px;position:sticky;top:0;height:100vh}
.sidebar .brand{font-size:25px;margin-bottom:26px}
.nav{display:grid;gap:8px}
.nav a{padding:13px 14px;border-radius:14px;color:#544f49;font-weight:800}
.nav a.active,.nav a:hover{background:var(--deep);color:#fff}
.content{padding:28px;max-width:1260px;width:100%;margin:0 auto}
.topbar{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:22px}
h1{margin:0;font-size:30px;letter-spacing:-.03em}
h2{margin:0 0 14px;font-size:21px}
p{line-height:1.6}
.muted{color:var(--muted)}
.grid{display:grid;gap:16px}
.grid.two{grid-template-columns:1.05fr .95fr}
.grid.three{grid-template-columns:repeat(3,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:22px;padding:20px;box-shadow:var(--shadow)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
label{display:block;margin:12px 0 6px;font-size:13px;font-weight:900;color:#403b35}
input,select,textarea{width:100%;border:1px solid var(--line);background:#fff;border-radius:14px;padding:13px 14px;font-size:15px;font-family:inherit}
textarea{min-height:140px;line-height:1.55}
button,.btn{border:0;background:var(--deep);color:#fff;border-radius:14px;padding:12px 15px;font-size:14px;font-weight:900;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:6px}
button.secondary,.btn.secondary{background:#fff;color:var(--deep);border:1px solid var(--line)}
button.danger,.btn.danger{background:#fff;color:var(--danger);border:1px solid #edcbc5}
.actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.stat{background:#fff;border:1px solid var(--line);border-radius:18px;padding:18px}
.stat b{font-size:28px;display:block;margin-top:6px}
.guest-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px;margin-bottom:12px;display:grid;grid-template-columns:46px 1fr;gap:16px}
.avatar{width:46px;height:46px;border-radius:999px;background:#595233;color:#fff;display:grid;place-items:center;font-weight:900}
.url{font-size:13px;word-break:break-all;background:#f1eadf;padding:10px;border-radius:12px;margin:10px 0}
.pill{display:inline-flex;align-items:center;background:#eaf0e8;color:var(--deep);border-radius:999px;padding:5px 10px;font-size:12px;font-weight:900;margin-top:6px}
.checks{display:grid;grid-template-columns:repeat(2,1fr);gap:8px}
.check{display:flex;gap:8px;align-items:center;background:#fff;border:1px solid var(--line);padding:10px;border-radius:12px}
.check input{width:auto}
.qr-box{display:none;margin-top:12px;text-align:center;background:#f7f3ec;border:1px solid var(--line);border-radius:18px;padding:16px}
.qr-box img{width:180px;background:#fff;border-radius:12px;padding:8px}
.toast{position:fixed;left:50%;bottom:22px;transform:translateX(-50%);background:#222;color:#fff;border-radius:999px;padding:12px 16px;font-weight:900;display:none;z-index:50}
.table{width:100%;border-collapse:separate;border-spacing:0 10px}
.table th{text-align:left;color:var(--muted);font-size:13px;padding:0 12px}
.table td{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:13px 12px;font-size:14px}
.table td:first-child{border-left:1px solid var(--line);border-radius:14px 0 0 14px}
.table td:last-child{border-right:1px solid var(--line);border-radius:0 14px 14px 0}
.login-wrap{min-height:100vh;display:grid;place-items:center;padding:24px}
.login-card{width:min(420px,100%);background:var(--card);border:1px solid var(--line);border-radius:26px;padding:30px;box-shadow:var(--shadow)}
.hidden{display:none!important}
@media(max-width:920px){
  .app{grid-template-columns:1fr}
  .sidebar{position:relative;height:auto}
  .nav{grid-template-columns:repeat(2,1fr)}
  .content{padding:20px}
  .grid.two,.grid.three,.form-grid,.checks{grid-template-columns:1fr}
  .guest-card{grid-template-columns:1fr}
}


/* v2.0.1 mobile UI refinement */
@media(max-width:920px){
  body{font-size:14px}
  .sidebar{padding:22px 18px 20px}
  .sidebar .brand{font-size:24px;margin-bottom:20px}
  .nav a{font-size:17px;padding:13px 14px}
  .content{padding:22px 19px}
  h1{font-size:27px}
  h2{font-size:19px}
  p{font-size:15px}
  .muted{font-size:15px}
  button,.btn{font-size:14px;padding:11px 14px;border-radius:14px}
  .topbar{align-items:center}
  .topbar .btn{min-width:86px;max-width:104px;line-height:1.25;text-align:center;white-space:normal}
  .stat b{font-size:26px}
  .stat{padding:17px}
  .card{padding:18px}
  input,select,textarea{font-size:14px;padding:12px 13px}
}

@media(max-width:420px){
  .nav{grid-template-columns:1fr 1fr}
  .nav a{font-size:16px}
  h1{font-size:25px}
  .sidebar .brand{font-size:23px}
}