/* app.css */
:root {
  --bg-dark: #05060a;
  --bg-dark-alt: #0b0d14;
  --bg-light: #f7f7fb;
  --bg-light-alt: #ececf4;
  --accent: #4f8cff;
  --accent-soft: rgba(79, 140, 255, 0.16);
  --accent-strong: #2f6bff;
  --border-dark: rgba(255, 255, 255, 0.08);
  --border-light: #d4d6e3;
  --text-dark: #f5f7ff;
  --text-light: #151624;
  --muted-dark: #8a8fa4;
  --muted-light: #6b6f82;
  --error: #ff4b6a;
  --radius: 10px;
  --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.45);
  --font-mono: "JetBrains Mono", "Fira Code", Consolas, monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
}
body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  display: flex;
  align-items: stretch;
  justify-content: center;
}

body.theme-dark {
  background: radial-gradient(circle at top, #1a1c2b 0, #05060a 55%, #000 100%);
  color: var(--text-dark);
}

body.theme-light {
  background: radial-gradient(circle at top, #ffffff 0, #f3f3fb 55%, #e4e4f0 100%);
  color: var(--text-light);
}

#app {
  width: 100%;
  max-width: 1440px;
  height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 18px;
  gap: 14px;
}

.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--border-dark);
  background: linear-gradient(120deg, rgba(255, 255, 255, 0.06), rgba(0, 0, 0, 0.6));
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(18px);
}

body.theme-light .app-header {
  border-color: var(--border-light);
  background: linear-gradient(120deg, #ffffff, #f5f5ff);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.08);
}
.brand-block {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 12px;
  background: radial-gradient(circle at 30% 20%, #ffffff, #4f8cff);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 14px;
  color: #05060a;
  font-weight: 600;
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.brand-subtitle {
  font-size: 11px;
  color: var(--muted-dark);
}

body.theme-light .brand-subtitle {
  color: var(--muted-light);
}

.header-actions {
  display: flex;
  gap: 8px;
}

.btn {
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.06);
  color: inherit;
  padding: 5px 12px;
  font-size: 11px;
  cursor: pointer;
  font-family: var(--font-mono);
  transition: background 0.15s ease, border-color 0.15s ease, transform 0.08s ease;
}

body.theme-light .btn {
  border-color: var(--border-light);
  background: #ffffff;
}

.btn:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  transform: translateY(-1px);
}

.btn-small {
  font-size: 10px;
  padding: 4px 10px;
}

.btn-ghost {
  background: transparent;
}

.btn-primary {
  border-color: var(--accent-strong);
  background: var(--accent-strong);
  color: #ffffff;
}
.layout {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  gap: 14px;
}

.panel {
  display: flex;
  flex-direction: column;
  border-radius: 18px;
  border: 1px solid var(--border-dark);
  background: radial-gradient(circle at top left, rgba(255, 255, 255, 0.06), rgba(5, 6, 12, 0.96));
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(22px);
  overflow: hidden;
}

body.theme-light .panel {
  border-color: var(--border-light);
  background: #ffffff;
  box-shadow: 0 18px 45px rgba(0, 0, 0, 0.08);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

body.theme-light .panel-header {
  border-color: rgba(0, 0, 0, 0.06);
}

.panel-title {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.panel-title span:first-child {
  font-size: 12px;
  font-weight: 600;
}

.panel-subtitle {
  font-size: 11px;
  color: var(--muted-dark);
}

body.theme-light .panel-subtitle {
  color: var(--muted-light);
}

.panel-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}
.panel-body {
  flex: 1;
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
}

#jsonInput {
  flex: 1;
  border: none;
  outline: none;
  resize: none;
  padding: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  background: rgba(0, 0, 0, 0.35);
  color: inherit;
  border-radius: 12px;
}

body.theme-light #jsonInput {
  background: #f5f5fb;
}

.panel-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 11px;
}

body.theme-light .panel-footer {
  border-color: rgba(0, 0, 0, 0.06);
}

.meta-group {
  display: flex;
  gap: 10px;
  font-family: var(--font-mono);
  color: var(--muted-dark);
}

body.theme-light .meta-group {
  color: var(--muted-light);
}

.editor-actions {
  display: flex;
  gap: 8px;
}

.file-label {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px dashed rgba(255, 255, 255, 0.3);
  font-size: 10px;
  cursor: pointer;
  font-family: var(--font-mono);
}

.file-label input {
  display: none;
}

.viewer-body {
  padding: 10px 14px;
}

.viewer-columns {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 10px;
  height: 100%;
}

.viewer-column {
  display: flex;
  flex-direction: column;
  background: rgba(0, 0, 0, 0.35);
  border-radius: 12px;
  padding: 8px 10px;
}

body.theme-light .viewer-column {
  background: #f5f5fb;
}

.viewer-column-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
  margin-bottom: 6px;
}

.viewer-column-actions {
  display: flex;
  gap: 6px;
}

.tree-view,
.pretty-view {
  flex: 1;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  white-space: pre;
  overflow: auto;
}

.bottom-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 11px;
}

.bottom-left {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.4);
  font-family: var(--font-mono);
}

body.theme-light .status-pill {
  background: #ffffff;
  border: 1px solid var(--border-light);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  display: inline-block;
}

.status-ok {
  background: #4afc7c;
}

.status-error {
  background: var(--error);
}

.snapshot-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

#snapshotName,
#searchInput,
#snapshotList {
  font-family: var(--font-mono);
  font-size: 11px;
  padding: 4px 8px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(0, 0, 0, 0.35);
  color: inherit;
}

body.theme-light #snapshotName,
body.theme-light #searchInput,
body.theme-light #snapshotList {
  background: #ffffff;
  border-color: var(--border-light);
}

.hint {
  color: var(--muted-dark);
}

body.theme-light .hint {
  color: var(--muted-light);
}