*{box-sizing:border-box}
body{margin:0;font-family:Arial,sans-serif;background:var(--bg,#f3f4f6);color:#111827}
a{color:var(--primary,#e50914);text-decoration:none}
input,textarea,select,button{width:100%;padding:14px;border-radius:14px;border:1px solid #d1d5db;font-size:15px}
button{border:0;background:var(--primary,#e50914);color:#fff;font-weight:700;cursor:pointer}
button:hover{filter:brightness(.95)}

.guest-page{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at top left,rgba(229,9,20,.15),transparent 35%),var(--bg,#f3f4f6)}
.guest-card{width:100%;max-width:790px;background:#fff;padding:34px;border-radius:28px;text-align:center;box-shadow:0 24px 70px rgba(0,0,0,.14)}
.guest-logo{max-width:280px;margin-bottom:14px}
.guest-card h1{margin:8px 0;color:var(--secondary,#111827)}
.guest-date{color:var(--primary,#e50914);font-weight:700;margin-bottom:24px}
.guest-card form{display:grid;gap:14px}
textarea{min-height:90px;resize:vertical}
.camera-box{display:grid;gap:12px}
.camera-box video,.camera-box img{width:100%;max-height:360px;object-fit:cover;background:#111827;border-radius:18px}
.camera-box img:not([src]){display:none}
.admin-link{display:inline-block;margin-top:20px;font-weight:700}
.success-card h1{color:#16a34a}
.visit-number{display:inline-block;margin:18px 0;padding:18px 24px;border-radius:18px;background:var(--secondary,#111827);color:#fff;font-size:28px;font-weight:700;letter-spacing:1px}
.button-link{display:inline-block;margin-top:20px;padding:14px 20px;border-radius:14px;background:var(--primary,#e50914);color:#fff;font-weight:700}

.auth-page{min-height:100vh;display:grid;place-items:center;padding:20px}
.auth-card{width:100%;max-width:420px;background:#fff;padding:32px;border-radius:24px;text-align:center;box-shadow:0 20px 60px rgba(0,0,0,.12)}
.auth-logo{max-width:220px;margin-bottom:16px}
.auth-card form{display:grid;gap:14px;margin:20px 0}
.alert{padding:12px;border-radius:12px;margin:12px 0}.alert.danger{background:#fee2e2;color:#991b1b}

.admin-layout{display:flex;min-height:100vh}
.sidebar{width:260px;background:var(--secondary,#111827);color:#fff;padding:24px}
.sidebar-logo{width:100%;max-width:170px;display:block;margin:0 auto 16px;background:#fff;border-radius:14px;padding:8px}
.sidebar h2{text-align:center;margin-bottom:24px}
.sidebar nav{display:grid;gap:10px}
.sidebar nav a{color:#fff;padding:12px 14px;border-radius:12px}
.sidebar nav a.active,.sidebar nav a:hover{background:var(--primary,#e50914)}
.content{flex:1;padding:28px}
.topbar,.panel,.stat-card{background:#fff;border-radius:20px;box-shadow:0 10px 30px rgba(0,0,0,.08)}
.topbar{padding:22px;margin-bottom:20px}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:20px}
.stat-card{padding:22px}.stat-card h3{margin:0 0 8px;color:#6b7280}.stat-card strong{font-size:36px;color:var(--primary,#e50914)}
.panel{padding:24px}.table-wrap{overflow-x:auto}
table{width:100%;border-collapse:collapse;min-width:900px}
th,td{padding:11px;border-bottom:1px solid #e5e7eb;text-align:left;font-size:14px}
th{background:var(--secondary,#111827);color:white}
.table-photo{width:64px;height:48px;object-fit:cover;border-radius:8px}

@media(max-width:900px){.admin-layout{display:block}.sidebar{width:100%}.stats-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.stats-grid{grid-template-columns:1fr}.content{padding:16px}.guest-card{padding:22px}.guest-logo{max-width:220px}.visit-number{font-size:20px}}

.toolbar {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 18px;
}

.toolbar select,
.toolbar button {
  width: auto;
}

.setting-form {
  display: grid;
  gap: 12px;
  max-width: 720px;
}

.setting-form label {
  font-weight: bold;
}

.setting-logo {
  max-width: 260px;
  background: #fff;
  padding: 10px;
  border-radius: 14px;
  border: 1px solid #ddd;
}

.alert.success {
  background: #dcfce7;
  color: #166534;
}

@media print {
  .sidebar,
  .topbar,
  .toolbar {
    display: none !important;
  }

  .content {
    padding: 0;
  }

  .panel {
    box-shadow: none;
  }
}