:root {
  --bg: #f5f7fb;
  --panel: #ffffff;
  --line: #d5deea;
  --text: #0e1a2a;
  --subtext: #4b5b72;
  --primary: #0d5bd7;
  --primary-dark: #0845a6;
  --danger: #cc2f2f;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 24px;
  background: linear-gradient(145deg, #edf3ff, #f6f8fc);
  color: var(--text);
  font-family: "Segoe UI", "Noto Sans KR", sans-serif;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 18px;
  margin-bottom: 18px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.stat-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 16px;
}

.stat-card h2 {
  font-size: 14px;
  margin: 0 0 8px;
  color: var(--subtext);
}

.stat-card p {
  margin: 0;
  font-size: 24px;
  font-weight: 700;
}

.filter-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
}

label {
  display: grid;
  gap: 6px;
  font-weight: 600;
}

input {
  width: 100%;
  height: 40px;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 0 12px;
}

.button-row {
  display: flex;
  gap: 8px;
  align-items: end;
}

button,
.link-btn {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  border: 0;
  border-radius: 8px;
  padding: 10px 14px;
  background: var(--primary);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  cursor: pointer;
}

button:hover,
.link-btn:hover {
  background: var(--primary-dark);
}

.secondary {
  background: #eef3ff;
  color: #19305b;
}

.secondary:hover {
  background: #dee9ff;
}

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  border-bottom: 1px solid var(--line);
  text-align: left;
  padding: 10px 8px;
  font-size: 14px;
}

th {
  color: var(--subtext);
}

.empty {
  text-align: center;
  color: var(--subtext);
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

pre {
  white-space: pre-wrap;
  margin: 0;
  background: #f3f6fc;
  border-radius: 10px;
  border: 1px solid var(--line);
  padding: 12px;
}

.login-body {
  min-height: 100vh;
  display: grid;
  place-items: center;
}

.login-card {
  width: min(440px, 90vw);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  padding: 26px;
}

.form-grid {
  display: grid;
  gap: 12px;
}

.sub-text,
.hint {
  color: var(--subtext);
}

.error-box {
  color: var(--danger);
  background: #ffecec;
  border: 1px solid #ffc8c8;
  border-radius: 8px;
  padding: 10px;
}