:root {
  --bg: #eef3f7;
  --card: #ffffff;
  --line: #d6dde5;
  --text: #15202b;
  --muted: #667788;
  --primary: #1359c8;
  --primary-soft: #e8f0ff;
  --accent: #d24f45;
  --shadow: 0 18px 38px rgba(21, 32, 43, 0.08);
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "Pretendard", "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(19, 89, 200, 0.16), transparent 26%),
    radial-gradient(circle at top right, rgba(210, 79, 69, 0.14), transparent 24%),
    var(--bg);
  color: var(--text);
}

.page {
  max-width: 1360px;
  margin: 0 auto;
  padding: 28px 22px 46px;
}

.hero,
.panel {
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(214, 221, 229, 0.9);
  border-radius: 22px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
}

.hero {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 18px;
  padding: 26px 28px;
  margin-bottom: 18px;
}

.eyebrow {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 8px;
}

h1 {
  margin: 0;
  font-size: 32px;
  line-height: 1.1;
}

.hero-copy {
  margin: 10px 0 0;
  color: var(--muted);
  max-width: 720px;
}

.quick-guide {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
  align-items: center;
}

.guide-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(19, 89, 200, 0.08);
  color: var(--primary);
  font-size: 12px;
  font-weight: 700;
}

.hero-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.panel {
  padding: 22px;
  margin-bottom: 18px;
}

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

.panel-title {
  font-size: 15px;
  font-weight: 800;
}

.panel-subtitle {
  margin-top: 4px;
  font-size: 12px;
  color: var(--muted);
}

.panel-actions,
.search-row,
.inline-input,
.checkbox-row,
.hero-actions {
  display: flex;
  align-items: center;
}

.panel-actions {
  flex-wrap: wrap;
  gap: 8px;
  justify-content: flex-end;
}

.btn {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--text);
  border-radius: 12px;
  padding: 10px 13px;
  cursor: pointer;
  font-weight: 700;
}

.btn.primary {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.btn.small {
  padding: 6px 10px;
  font-size: 11px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 14px;
}

.remote-grid {
  grid-template-columns: repeat(5, minmax(0, 1fr));
}

.remote-span-3 {
  grid-column: span 3;
}

.remote-span-2 {
  grid-column: span 2;
}

label,
.stack-label {
  display: flex;
  flex-direction: column;
  gap: 7px;
  font-size: 12px;
  color: var(--muted);
}

select,
input[type="text"],
input[type="password"],
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #fff;
  padding: 10px 11px;
  color: var(--text);
  font: inherit;
}

.checkbox-row {
  flex-direction: row;
  gap: 8px;
  align-self: end;
  padding-bottom: 11px;
}

.checkbox-row input {
  width: auto;
}

.content-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 18px;
}

.seat-list {
  max-height: 520px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #f9fbfd;
  padding: 8px;
}

.seat-list > .seat-item {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: flex-start;
  gap: 8px;
  width: 100%;
  background: #fff;
  border: 1px solid transparent;
  border-radius: 10px;
  padding: 6px 8px;
  margin-bottom: 5px;
  cursor: grab;
}

.seat-list > .seat-item:last-child {
  margin-bottom: 0;
}

.seat-list > .seat-item.dragging {
  opacity: 0.5;
  border-color: var(--primary);
  background: var(--primary-soft);
}

.seat-list > .seat-item.drag-over {
  border-color: var(--accent);
}

.seat-list > .seat-item input {
  width: auto;
}

.drag-handle {
  flex: 0 0 auto;
  color: #92a3b4;
  font-size: 13px;
  user-select: none;
}

.seat-meta {
  display: flex;
  flex: 1 1 auto;
  min-width: 0;
  flex-direction: column;
  align-items: flex-start;
  gap: 2px;
}

.seat-name {
  color: var(--text);
  font-size: 12px;
  line-height: 1.25;
  text-align: left;
}

.seat-rank {
  font-size: 10px;
  color: var(--muted);
}

.seat-stats {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  background: #edf3fb;
  color: #476078;
  font-size: 11px;
  font-weight: 700;
}

.reference-box {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: linear-gradient(135deg, rgba(19, 89, 200, 0.08), rgba(255,255,255,0.9));
  padding: 15px;
  margin-bottom: 14px;
}

.sync-status {
  margin-bottom: 12px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: #f8fbff;
  color: #476078;
  font-size: 12px;
  font-weight: 600;
}

.hero-sync-status {
  margin-top: -4px;
  margin-bottom: 18px;
}

.token-box {
  margin-top: 8px;
}

.token-box-inner {
  padding: 14px;
}

.field-help {
  margin-top: 6px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.45;
}

.excluded-zone-panel {
  margin-top: 0;
  border-top: 0;
  padding-top: 0;
}

.section-after-content {
  margin-top: 4px;
}

.excluded-zone-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}

.reference-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.reference-links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 10px;
  border-radius: 999px;
  text-decoration: none;
  color: var(--primary);
  background: rgba(255,255,255,0.92);
  border: 1px solid rgba(19, 89, 200, 0.16);
  font-size: 12px;
  font-weight: 700;
}

.excluded-zone-groups,
.seat-groups {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.seat-group {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fbfcfe;
  padding: 14px;
}

.seat-group-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 9px;
}

.seat-group h3 {
  margin: 0;
  font-size: 13px;
}

.seat-group-actions {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.chip-list,
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chip,
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 10px;
  border-radius: 999px;
  background: #fff;
  border: 1px solid var(--line);
  font-size: 12px;
}

.seat-chip {
  cursor: pointer;
  text-align: left;
}

.seat-chip.is-active {
  background: #ffffff;
  color: var(--text);
  border-color: rgba(19, 89, 200, 0.2);
}

.seat-chip.is-inactive {
  opacity: 0.45;
}

.btn.micro {
  padding: 5px 8px;
  border-radius: 10px;
  font-size: 10px;
}

.tag button {
  border: 0;
  background: transparent;
  color: var(--accent);
  font-weight: 800;
  cursor: pointer;
}

.custom-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.inline-input {
  gap: 8px;
}

.inline-input input {
  flex: 1;
}

.json-output {
  min-height: 260px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  line-height: 1.5;
}

.advanced-box {
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fbfcfe;
  overflow: hidden;
}

.advanced-box summary {
  cursor: pointer;
  padding: 12px 14px;
  font-weight: 700;
  font-size: 13px;
  list-style: none;
}

.advanced-box summary::-webkit-details-marker {
  display: none;
}

.advanced-box[open] summary {
  border-bottom: 1px solid var(--line);
}

.advanced-box .json-output {
  border: 0;
  border-radius: 0;
}

@media (max-width: 1100px) {
  .form-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .remote-span-3,
  .remote-span-2 {
    grid-column: span 2;
  }
  .content-grid,
  .custom-grid,
  .hero {
    grid-template-columns: 1fr;
    display: grid;
  }
  .hero-actions {
    justify-content: flex-start;
  }
}


.excluded-zone-groups {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.excluded-zone-group {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fbfcfe;
  padding: 14px;
}

.excluded-zone-group.is-disabled-source {
  background: #f6f8fb;
  border-color: #dbe3ea;
}

.excluded-zone-group-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 9px;
}

.excluded-zone-group h3 {
  margin: 0;
  font-size: 13px;
}

.excluded-zone-title-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.zone-source-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 8px;
  border-radius: 999px;
  background: #eef2f6;
  color: #6a7d90;
  font-size: 10px;
  font-weight: 700;
}

.excluded-zone-group.is-disabled-source h3 {
  color: #6a7d90;
}

.excluded-zone-group.is-disabled-source .seat-chip {
  opacity: 0.45;
}

.excluded-zone-group .btn:disabled,
.excluded-zone-group .seat-chip:disabled {
  cursor: not-allowed;
}


.preset-toolbar {
  display: grid;
  grid-template-columns: 1.1fr 1.4fr;
  gap: 14px;
  margin-bottom: 16px;
}

.preset-toolbar .inline-input {
  gap: 8px;
}

.preset-toolbar .btn.small.danger {
  color: #a33232;
  border-color: #e8caca;
  background: #fff7f7;
}

.preset-toolbar-name,
.preset-toolbar-select {
  min-width: 0;
}

.preset-toolbar-select select,
.preset-toolbar-name input {
  min-width: 0;
}

@media (max-width: 980px) {
  .preset-toolbar {
    grid-template-columns: 1fr;
  }
}