:root {
  --bg: #f4f6f9;
  --surface: #ffffff;
  --border: #d1d5db;
  --accent: #2563eb;
  --text: #111827;
  --text-muted: #6b7280;
  --danger: #dc2626;
  --success: #16a34a;
  --warn: #d97706;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', system-ui, sans-serif;
  font-size: 14px;
  line-height: 1.5;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* navbar */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  height: 52px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 4px rgba(0,0,0,.08);
  position: sticky;
  top: 0;
  z-index: 100;
}
.brand { font-size: 16px; font-weight: 700; color: var(--text); }
.nav-links { display: flex; gap: 16px; }

/* container */
.container { max-width: 1600px; margin: 0 auto; padding: 16px; }

/* login */
.login-body { display: flex; justify-content: center; align-items: center; min-height: 100vh; padding: 16px; }
.login-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 40px;
  width: 100%;
  max-width: 360px;
}
.login-box h1 { font-size: 22px; margin-bottom: 24px; text-align: center; }
.login-box label { display: block; margin-bottom: 4px; color: var(--text-muted); font-size: 12px; }
.login-box input {
  width: 100%; padding: 10px 12px; margin-bottom: 16px;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: 6px; color: var(--text); font-size: 14px;
}
.login-box button {
  width: 100%; padding: 11px;
  background: var(--accent); color: #fff;
  border: none; border-radius: 6px; font-size: 14px; font-weight: 600; cursor: pointer;
}
.hint { font-size: 12px; color: var(--text-muted); margin-bottom: 12px; }
.qr-img { display: block; margin: 0 auto 16px; border: 4px solid #fff; border-radius: 8px; max-width: 100%; }

/* alerts */
.alert-error {
  background: rgba(224,82,82,.15); border: 1px solid var(--danger);
  color: var(--danger); padding: 10px 14px; border-radius: 6px; margin-bottom: 16px;
}
.alert-success {
  background: rgba(76,175,130,.15); border: 1px solid var(--success);
  color: var(--success); padding: 10px 14px; border-radius: 6px; margin-bottom: 16px;
}

/* toolbar */
.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.search-form { display: flex; gap: 8px; flex-wrap: wrap; flex: 1; }
.search-form input, .search-form select {
  padding: 8px 10px; background: var(--surface); border: 1px solid var(--border);
  border-radius: 6px; color: var(--text); font-size: 13px; box-shadow: 0 1px 2px rgba(0,0,0,.04);
}
.search-form input { flex: 1; min-width: 160px; }
.search-form button, .btn-reset, .btn-new {
  padding: 8px 14px; border-radius: 6px; font-size: 13px; cursor: pointer; white-space: nowrap;
}
.search-form button { background: var(--accent); color: #fff; border: none; }
.btn-reset { background: var(--surface); border: 1px solid var(--border); color: var(--text); }
.btn-new { background: var(--success); color: #fff; font-weight: 600; }

/* table */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.cred-table { width: 100%; border-collapse: collapse; min-width: 700px; }
.cred-table th {
  background: var(--bg); padding: 9px 10px;
  text-align: left; font-size: 12px; color: var(--text-muted);
  border-bottom: 2px solid var(--border); white-space: nowrap;
}
.cred-table td { padding: 8px 10px; border-bottom: 1px solid var(--border); vertical-align: middle; word-break: break-all; }
.cred-table tr.status-2 td { opacity: .55; }
.cred-table tr.status-3 td { opacity: .35; text-decoration: line-through; }
.cred-table tbody tr:hover td { background: #f0f4ff; }

.col-name { font-weight: 500; min-width: 120px; }
.col-pw   { font-family: monospace; font-size: 12px; }
.col-data { font-size: 12px; max-width: 180px; }

.status-badge { border-radius: 4px; padding: 2px 8px; font-size: 11px; font-weight: 600; white-space: nowrap; }
.s1 { background: rgba(76,175,130,.2); color: var(--success); }
.s2 { background: rgba(224,162,82,.2); color: var(--warn); }
.s3 { background: rgba(224,82,82,.2); color: var(--danger); }

.tag {
  display: inline-block; background: #e0e7ff; color: #3730a3;
  border-radius: 4px; padding: 1px 6px; font-size: 11px;
  margin: 1px 2px 1px 0;
}

.notes-row td { padding: 2px 10px 8px; }
.notes-cell { font-size: 12px; color: var(--text-muted); }

/* edit form */
.edit-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; flex-wrap: wrap; gap: 8px; }
.edit-header h2 { font-size: 18px; }
.edit-form {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 10px; padding: 24px;
  max-width: 860px; box-shadow: 0 1px 4px rgba(0,0,0,.06);
}
.form-row { display: flex; gap: 16px; flex-wrap: wrap; }
.form-group { flex: 1; margin-bottom: 16px; min-width: 200px; }
.form-group--sm { max-width: 160px; min-width: 120px; }
.form-group label { display: block; margin-bottom: 5px; color: var(--text-muted); font-size: 12px; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 9px 12px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 6px; color: var(--text); font-size: 13px;
  font-family: inherit; resize: vertical;
  box-shadow: inset 0 1px 2px rgba(0,0,0,.04);
}
.pw-input-wrap { display: flex; gap: 6px; }
.pw-input-wrap input { flex: 1; }

.form-actions { display: flex; gap: 10px; margin-top: 8px; flex-wrap: wrap; }
.btn-save { padding: 10px 24px; background: var(--accent); color: #fff; border: none; border-radius: 6px; font-size: 14px; font-weight: 600; cursor: pointer; }
.btn-cancel { padding: 10px 20px; background: var(--surface); border: 1px solid var(--border); color: var(--text); border-radius: 6px; font-size: 14px; }
.btn-delete { margin-left: auto; padding: 10px 20px; background: rgba(224,82,82,.15); border: 1px solid var(--danger); color: var(--danger); border-radius: 6px; font-size: 14px; cursor: pointer; }

.empty { color: var(--text-muted); margin-top: 40px; text-align: center; }

/* 모바일 반응형 */
@media (max-width: 600px) {
  .navbar { padding: 0 12px; }
  .nav-links { gap: 10px; font-size: 13px; }
  .container { padding: 10px; }
  .toolbar { flex-direction: column; }
  .search-form { width: 100%; }
  .btn-new { width: 100%; text-align: center; }
  .edit-form { padding: 16px; }
  .form-row { flex-direction: column; gap: 0; }
  .form-group--sm { max-width: 100%; }
  .btn-delete { margin-left: 0; }
}