:root {
  --bg: #eef2f6;
  --surface: #ffffff;
  --surface-soft: #f8fafc;
  --surface-tint: #f1f7f5;
  --text: #172033;
  --muted: #647084;
  --line: #d9e1ea;
  --line-strong: #c5d0dc;
  --primary: #176b87;
  --primary-hover: #11566d;
  --primary-soft: #e4f3f7;
  --accent: #2f855a;
  --danger: #b42318;
  --danger-hover: #912018;
  --warning: #a16207;
  --shadow: 0 14px 40px rgba(18, 38, 63, 0.09);
  --shadow-soft: 0 8px 20px rgba(18, 38, 63, 0.06);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background:
    linear-gradient(180deg, #f7fafc 0, var(--bg) 320px),
    var(--bg);
  color: var(--text);
  font-family: Arial, "Malgun Gothic", sans-serif;
}

button,
input,
select {
  font: inherit;
}

button {
  align-items: center;
  background: var(--primary);
  border: 1px solid transparent;
  border-radius: 6px;
  color: #ffffff;
  cursor: pointer;
  display: inline-flex;
  font-weight: 700;
  justify-content: center;
  min-height: 36px;
  padding: 0 14px;
}

button:hover {
  background: var(--primary-hover);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

button.secondary {
  background: #ffffff;
  border-color: var(--line-strong);
  color: var(--text);
}

button.secondary:hover {
  background: #f3f6f8;
}

button.danger {
  background: #fff7f5;
  border-color: #f4c7c3;
  color: var(--danger);
}

button.danger:hover {
  background: #ffe8e5;
  color: var(--danger-hover);
}

.topbar {
  align-items: center;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 1px 0 rgba(18, 38, 63, 0.03);
  display: flex;
  gap: 20px;
  justify-content: space-between;
  padding: 18px 28px;
  position: sticky;
  top: 0;
  z-index: 5;
}

.topbar h1 {
  font-size: 22px;
  line-height: 1.2;
  margin: 0 0 5px;
}

.topbar p {
  color: var(--muted);
  margin: 0;
}

.header-actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: flex-end;
}

.session-status {
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 700;
  padding: 6px 10px;
}

.hidden {
  display: none !important;
}

.layout {
  display: grid;
  gap: 18px;
  margin: 0 auto;
  max-width: 1360px;
  padding: 22px;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow-soft);
  padding: 18px;
}

.panel h2 {
  font-size: 18px;
  line-height: 1.25;
  margin: 0 0 14px;
}

.auth-panel {
  margin: 70px auto 0;
  max-width: 760px;
  width: 100%;
}

.section-head {
  align-items: center;
  display: flex;
  gap: 12px;
  justify-content: space-between;
  margin-bottom: 14px;
}

.section-head h2 {
  margin: 0;
}

.icon-button {
  border-radius: 50%;
  font-size: 21px;
  font-weight: 800;
  height: 36px;
  line-height: 1;
  min-height: 36px;
  padding: 0;
  width: 36px;
}

.inline-form {
  align-items: end;
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(180px, 280px)) auto;
  justify-content: start;
}

.grid-form {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(6, minmax(120px, 1fr));
}

.grid-form .wide {
  grid-column: span 2;
}

.inline-add-form,
.log-filter-form {
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  margin-bottom: 16px;
  padding: 14px;
}

.form-actions,
.actions {
  align-items: center;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.grid-form button {
  align-self: end;
}

label {
  color: var(--muted);
  display: grid;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
}

input,
select {
  background: #ffffff;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  color: var(--text);
  min-height: 36px;
  padding: 7px 9px;
  width: 100%;
}

input:focus,
select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(23, 107, 135, 0.14);
  outline: none;
}

.hint {
  color: var(--muted);
  font-size: 13px;
  margin: 12px 0 0;
}

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

.program-workbench {
  display: grid;
  gap: 16px;
  grid-template-columns: 300px minmax(0, 1fr);
}

.program-list-wrap {
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 8px;
  min-height: 280px;
  overflow: hidden;
}

.program-list-head {
  background: #e9eff5;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
  padding: 11px 13px;
}

.program-list {
  display: grid;
  padding: 8px;
}

.program-list-item {
  background: transparent;
  border: 1px solid transparent;
  border-radius: 8px;
  color: var(--text);
  display: grid;
  gap: 7px;
  justify-items: start;
  margin: 0 0 6px;
  min-height: auto;
  padding: 12px;
  position: relative;
  text-align: left;
}

.program-list-item:hover {
  background: #ffffff;
  border-color: var(--line);
  box-shadow: var(--shadow-soft);
  color: var(--text);
}

.program-list-item.selected {
  background: #ffffff;
  border-color: #9fc6d1;
  box-shadow: var(--shadow-soft);
  color: var(--text);
}

.program-list-item.selected::before {
  background: var(--primary);
  border-radius: 999px;
  bottom: 10px;
  content: "";
  left: 0;
  position: absolute;
  top: 10px;
  width: 4px;
}

.program-list-title {
  font-size: 14px;
  font-weight: 900;
}

.program-list-meta,
.license-card-meta {
  color: var(--muted);
  font-size: 12px;
}

.program-detail {
  min-width: 0;
}

.detail-card,
.empty-card {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.empty-card {
  color: var(--muted);
  padding: 28px;
  text-align: center;
}

.detail-head,
.license-card-head {
  align-items: center;
  background: linear-gradient(180deg, #ffffff, #f8fbfc);
  border-bottom: 1px solid var(--line);
  display: flex;
  gap: 12px;
  justify-content: space-between;
  padding: 16px;
}

.detail-head h3,
.license-card-head h4 {
  font-size: 18px;
  line-height: 1.2;
  margin: 0 0 5px;
}

.program-edit,
.license-fields {
  align-items: end;
  display: grid;
  gap: 12px;
  grid-template-columns: minmax(180px, 1.2fr) minmax(130px, 0.7fr) minmax(180px, 1.4fr) auto;
  padding: 16px;
}

.license-head {
  align-items: center;
  background: var(--surface-tint);
  border-top: 1px solid var(--line);
  display: flex;
  gap: 12px;
  justify-content: space-between;
  padding: 13px 16px;
}

.license-head h3 {
  font-size: 15px;
  margin: 0;
}

.license-cards {
  display: grid;
  gap: 14px;
  padding: 16px;
}

.license-card {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.license-card:hover {
  border-color: #b8c9d6;
}

.device-section {
  background: #fbfcfd;
  border-top: 1px solid var(--line);
  padding: 14px;
}

.device-section h5 {
  font-size: 14px;
  margin: 0 0 10px;
}

.device-table {
  min-width: 860px;
}

table {
  border-collapse: separate;
  border-spacing: 0;
  min-width: 980px;
  width: 100%;
}

th,
td {
  border-bottom: 1px solid var(--line);
  font-size: 13px;
  padding: 10px 9px;
  text-align: left;
  vertical-align: middle;
}

th {
  background: #f4f7fa;
  color: var(--muted);
  font-weight: 800;
  white-space: nowrap;
}

td {
  background: #ffffff;
}

tbody tr:hover td {
  background: #f8fbfc;
}

td input,
td select {
  min-width: 92px;
}

.empty-cell {
  color: var(--muted);
  padding: 18px;
  text-align: center;
}

.pager {
  align-items: center;
  display: flex;
  gap: 10px;
  justify-content: center;
  padding-top: 14px;
}

.pager span {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
  min-width: 64px;
  text-align: center;
}

.status {
  border-radius: 999px;
  display: inline-flex;
  font-size: 12px;
  font-weight: 800;
  line-height: 1;
  padding: 5px 8px;
}

.status.active,
.status.allowed,
.status.yes {
  background: #def7ec;
  color: var(--accent);
}

.status.pending {
  background: #fff4cc;
  color: var(--warning);
}

.status.blocked,
.status.expired,
.status.no {
  background: #ffe4e0;
  color: var(--danger);
}

pre {
  background: #101828;
  border-radius: 8px;
  color: #e4e7ec;
  margin: 0;
  overflow-x: auto;
  padding: 16px;
}

@media (max-width: 900px) {
  .topbar {
    align-items: stretch;
    flex-direction: column;
  }

  .inline-form,
  .grid-form,
  .program-edit,
  .license-fields {
    grid-template-columns: 1fr;
  }

  .program-workbench {
    grid-template-columns: 1fr;
  }

  .grid-form .wide {
    grid-column: auto;
  }
}

/* 등록 PC 의 허용 / 차단.
   라디오 버튼처럼 둘 중 하나만 눌려 있게 보인다. 지금 상태인 쪽이 눌린
   모양이고 누를 수 없다. 반대쪽만 누를 수 있다.
   승인 대기는 아직 어느 쪽도 아니라 둘 다 안 눌린 모양이 된다. */
.pick-group {
  display: inline-flex;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  overflow: hidden;
}

.pick-group .pick {
  background: var(--surface);
  border: 0;
  border-radius: 0;
  color: var(--muted);
  font-weight: 600;
  padding: 4px 12px;
}

.pick-group .pick + .pick {
  border-left: 1px solid var(--line-strong);
}

.pick-group .pick:hover:not(:disabled) {
  background: var(--surface-soft);
  color: var(--text);
}

/* 지금 상태. 눌려 있는 쪽이라 흐리게 하지 않는다. */
.pick-group .pick.picked:disabled {
  background: var(--primary);
  color: #ffffff;
  cursor: default;
  opacity: 1;
}

.pick-group .pick.picked[data-status="blocked"]:disabled {
  background: var(--danger);
}