html,
body {
  height: 100%;
  margin: 0;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: #111827;
}

#app {
  display: flex;
  height: 100%;
  width: 100%;
  padding-top: 62px;
  box-sizing: border-box;
}

#main {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

#content {
  flex: 1;
  display: flex;
  min-height: 0;
  gap: 0;
}

#graph-stage {
  flex: 1;
  min-width: 0;
  min-height: 0;
  display: flex;
  position: relative;
  background:
    radial-gradient(circle at top left, rgba(11, 99, 255, 0.08), transparent 28%),
    linear-gradient(180deg, #fcfdff 0%, #f6f9ff 100%);
}

#mobile-graph-hint {
  position: absolute;
  inset: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 20px;
  border: 1px dashed #cbd5e1;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.82);
  color: #475569;
  box-sizing: border-box;
}

#mobile-graph-hint p {
  margin: 0;
  max-width: 280px;
  line-height: 1.5;
}

#mobile-graph-hint[hidden] {
  display: none !important;
}

#node-panel {
  width: 360px;
  min-width: 0;
  padding: 0;
  overflow: hidden;
  box-sizing: border-box;
  display: none;
  flex-direction: column;
  background: #fbfdff;
  border: 1px solid #dbe4f0;
  border-radius: 22px;
  box-shadow: 0 20px 44px rgba(15, 23, 42, 0.14);
}

#node-panel.open {
  display: flex;
}

#node-panel-top {
  position: sticky;
  top: 0;
  z-index: 3;
  padding: 18px 12px 10px;
  background: linear-gradient(180deg, #ffffff 0%, #f8fbff 100%);
  border-bottom: 1px solid #e5e7eb;
}

.panel-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
  position: relative;
  padding-right: 40px;
}

#node-panel h3 {
  margin: 0;
  font-size: 15px;
}

#node-count {
  font-size: 12px;
  color: #6b7280;
  margin-left: auto;
}

#close-node-panel {
  top: 0;
  right: 0;
}

#node-filter {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid #d1d5db;
  border-radius: 10px;
  box-sizing: border-box;
}

.search-stack {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.search-input-wrap {
  position: relative;
}

.search-input-wrap input {
  width: 100%;
  padding-right: 40px;
}

.search-clear {
  position: absolute;
  top: 50%;
  right: 8px;
  transform: translateY(-50%);
  width: 26px;
  height: 26px;
  padding: 0;
  border-radius: 999px;
  border: 1px solid #d1d5db;
  background: #ffffff;
  color: #6b7280;
  font-size: 16px;
  line-height: 1;
  cursor: pointer;
}

.panel-subline {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  font-size: 12px;
  color: #6b7280;
}

#selected-node-label {
  color: #0b63ff;
  font-weight: 600;
  text-align: right;
}

#node-panel-list {
  padding-left: 0;
  margin: 0;
  overflow: auto;
  padding: 8px 8px 14px;
}

#node-panel-list li {
  padding: 8px 10px;
  border-radius: 8px;
  list-style: none;
  cursor: pointer;
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#node-panel-list li:hover {
  background: #f3f4f6;
}

#node-panel-list li.kbd-active {
  background: #f8fafc;
  box-shadow: inset 0 0 0 1px #cbd5e1;
}

#node-panel-list li.active {
  background: #e5f0ff;
  color: #0b63ff;
  font-weight: 600;
}

header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  padding: 10px 14px;
  border-bottom: 1px solid #e5e7eb;
  background: #ffffff;
  box-sizing: border-box;
}

header h1 {
  font-size: 18px;
  margin: 0;
  color: #0b63ff;
  white-space: nowrap;
}

header input,
header button,
header a.header-link,
header select {
  padding: 9px 11px;
  border: 1px solid #d1d5db;
  border-radius: 10px;
  font-size: 14px;
  background: #ffffff;
}

header button {
  cursor: pointer;
}

header button.primary,
header a.header-link.primary,
.homepage-btn {
  background: #0b63ff;
  color: #ffffff;
  border: none;
}

#reset {
  background: #dc2626;
  color: #ffffff;
  border-color: #dc2626;
}

#reset:hover {
  background: #b91c1c;
  border-color: #b91c1c;
}

header button[aria-pressed="true"] {
  background: #0b63ff;
  color: #ffffff;
  border-color: #0b63ff;
}

.homepage-btn {
  text-decoration: none;
  display: inline-block;
  padding: 9px 12px;
  border-radius: 10px;
  white-space: nowrap;
  margin-left: auto;
}

.header-link {
  display: inline-block;
  text-decoration: none;
  white-space: nowrap;
}

#cy {
  flex: 1;
  width: 100%;
  height: 100%;
}

#side-panels {
  display: flex;
  gap: 12px;
  width: 0;
  min-width: 0;
  padding: 16px 0 16px 0;
  overflow: hidden;
  box-sizing: border-box;
  transition: width 180ms ease, padding 180ms ease, border-left-color 180ms ease;
  border-left: 1px solid transparent;
  background: #f8fbff;
}

#side-panels.has-open {
  width: 392px;
  padding: 16px;
  border-left-color: #dbe4f0;
}

#node-panel,
.side-panel {
  width: 360px;
  min-width: 0;
  background: #fbfdff;
  border: 1px solid #dbe4f0;
  border-radius: 22px;
  box-sizing: border-box;
  box-shadow: 0 20px 44px rgba(15, 23, 42, 0.14);
  display: none;
}

#node-panel {
  padding: 0;
}

.side-panel {
  padding: 16px;
  overflow: auto;
}

#node-panel.open,
.side-panel.open {
  display: block;
}

#node-panel.open {
  display: flex;
}

.detail-card-header {
  margin-bottom: 10px;
  position: relative;
}

.detail-card-header h2 {
  margin: 4px 0 0;
  font-size: 20px;
}

.eyebrow {
  margin: 0;
  color: #2563eb;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.muted {
  color: #6b7280;
  line-height: 1.5;
}

.panel-close {
  position: absolute;
  top: -4px;
  right: -4px;
  width: 32px;
  height: 32px;
  border-radius: 999px;
  border: 1px solid #d1d5db;
  background: #ffffff;
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
}

.field-stack {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 12px;
}

.field-stack label {
  font-size: 13px;
  font-weight: 600;
}

.field-stack input {
  padding: 10px 12px;
  border: 1px solid #d1d5db;
  border-radius: 10px;
  font-size: 14px;
}

.button-row {
  display: flex;
  gap: 8px;
  margin-bottom: 10px;
}

.path-node {
  border-color: #f97316 !important;
  background-color: #ffedd5 !important;
  border-width: 5 !important;
}

.path-edge {
  line-color: #f97316 !important;
  target-arrow-color: #f97316 !important;
  width: 7 !important;
}

.path-dim {
  opacity: 0.12 !important;
}

@media (max-width: 900px) {
  #app {
    padding-top: 118px;
  }

  header {
    gap: 8px;
  }

  #side-panels.has-open {
    width: 344px;
  }

  .side-panel {
    width: 312px;
  }
}

@media (max-width: 720px) {
  #app {
    padding-top: 152px;
  }

  #node-panel-top {
    padding: 12px 12px 10px;
  }

  #content {
    flex-direction: column;
  }

  #graph-stage {
    min-height: 52vh;
  }

  #mobile-graph-hint {
    inset: 12px;
  }

  #side-panels {
    width: 100%;
    border-left: none;
    border-top: 1px solid transparent;
    padding: 0;
    flex-direction: column;
    gap: 0;
  }

  #side-panels.has-open {
    width: 100%;
    padding: 12px;
    border-top-color: #dbe4f0;
  }

  .side-panel {
    width: 100%;
    max-height: 38vh;
  }

  #cy {
    min-height: 52vh;
  }
}