:root {
  --bg: #070b12;
  --surface: #0e1624;
  --surface-2: #111c2d;
  --surface-3: #162235;
  --line: rgba(159, 176, 205, 0.18);
  --text: #eef4ff;
  --muted: #93a4bc;
  --accent: #38d5ff;
  --accent-2: #7c5cff;
  --success: #3ddc97;
  --warning: #ffbf69;
  --danger: #ff6b6b;
  --mono: "JetBrains Mono", Consolas, monospace;
  --sans: "Inter", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--bg);
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: var(--sans);
  background:
    radial-gradient(
      circle at 30% -10%,
      rgba(56, 213, 255, 0.16),
      transparent 34rem
    ),
    radial-gradient(
      circle at 90% 10%,
      rgba(124, 92, 255, 0.12),
      transparent 28rem
    ),
    var(--bg);
}

button,
input,
select {
  font: inherit;
}

button,
.file-action {
  cursor: pointer;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
.file-action:focus-visible {
  outline: 3px solid rgba(56, 213, 255, 0.34);
  outline-offset: 2px;
}

.app-shell {
  display: grid;
  grid-template-columns: minmax(250px, 300px) minmax(0, 1fr) minmax(
      260px,
      320px
    );
  min-height: 100vh;
}

.sidebar-panel,
.right-panel {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 22px;
  background: rgba(14, 22, 36, 0.94);
  backdrop-filter: blur(18px);
}

.sidebar-panel {
  border-right: 1px solid var(--line);
}

.right-panel {
  border-left: 1px solid var(--line);
}

.canvas-panel {
  min-width: 0;
  padding: 22px;
  overflow: hidden;
}

.brand-block h1,
.canvas-toolbar h2,
.modal-header h2 {
  margin: 0;
  letter-spacing: 0;
}

.brand-block h1 {
  font-size: 1.55rem;
  line-height: 1.1;
}

.brand-block p:not(.eyebrow) {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.55;
}

.canvas-toolbar h2 {
  font-size: 1.3rem;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.panel-section-title {
  margin: 4px 0 0;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.schema-tabs {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
}

.schema-tab,
.output-tab,
.primary-btn,
.secondary-btn,
.copy-btn,
.icon-btn {
  border: 1px solid transparent;
  border-radius: 8px;
  min-height: 40px;
  transition:
    border-color 160ms ease,
    background 160ms ease,
    color 160ms ease,
    transform 160ms ease;
}

.schema-tab,
.output-tab,
.secondary-btn,
.copy-btn,
.icon-btn {
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--line);
  color: var(--text);
}

.schema-tab,
.output-tab {
  padding: 10px 12px;
  font-weight: 800;
  text-align: left;
}

.schema-tab.active,
.output-tab.active {
  background: linear-gradient(135deg, var(--accent), #aaf0ff);
  border-color: transparent;
  color: #06111c;
}

.primary-btn {
  background: linear-gradient(135deg, var(--accent), #aaf0ff);
  color: #06111c;
  border: none;
  font-weight: 800;
}

.secondary-btn,
.copy-btn,
.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 14px;
  font-weight: 700;
  text-decoration: none;
}

.primary-btn:hover,
.schema-table-item:hover {
  transform: translateY(-1px);
}

.secondary-btn:hover,
.copy-btn:hover,
.icon-btn:hover,
.schema-tab:not(.active):hover,
.output-tab:not(.active):hover {
  border-color: rgba(56, 213, 255, 0.6);
  color: var(--accent);
}

.full-width {
  width: 100%;
}

.panel-input {
  width: 100%;
  min-height: 42px;
  margin: 0;
  padding: 10px 12px;
  background: rgba(7, 11, 18, 0.82);
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--text);
}

.panel-input::placeholder {
  color: #6f8097;
}

.panel-input:focus {
  border-color: rgba(56, 213, 255, 0.8);
}

.schema-table-list {
  display: grid;
  gap: 10px;
  overflow: auto;
}

.schema-table-item {
  display: grid;
  gap: 6px;
  padding: 13px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  border-radius: 8px;
  text-align: left;
}

.schema-table-item h4 {
  margin: 0;
  font-size: 0.96rem;
}

.column-count,
.hint-text,
.panel-card p {
  color: var(--muted);
}

.column-count {
  font-family: var(--mono);
  font-size: 0.76rem;
}

.sidebar-actions {
  display: grid;
  gap: 10px;
  margin-top: auto;
}

.canvas-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 16px;
}

.stats-strip {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-bottom: 12px;
}

.stats-strip article {
  padding: 12px;
  background: rgba(14, 22, 36, 0.74);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.stats-strip span {
  display: block;
  font-size: 1.25rem;
  font-weight: 800;
}

.stats-strip small {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: uppercase;
}

.help-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 14px;
}

.help-strip span {
  padding: 7px 10px;
  background: rgba(56, 213, 255, 0.08);
  border: 1px solid rgba(56, 213, 255, 0.18);
  border-radius: 999px;
  color: #d9e8fb;
  font-size: 0.8rem;
}

.help-strip strong {
  color: var(--accent);
}

#query-canvas {
  display: block;
  width: 100%;
  height: 620px;
  background: rgba(7, 11, 18, 0.92);
  border: 1px solid rgba(56, 213, 255, 0.26);
  border-radius: 8px;
  box-shadow: 0 22px 70px rgba(0, 0, 0, 0.32);
}

.output-panel,
.panel-card {
  background: rgba(14, 22, 36, 0.92);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.output-panel {
  margin-top: 16px;
  overflow: hidden;
}

.output-tabs {
  display: flex;
  gap: 8px;
  padding: 12px;
  border-bottom: 1px solid var(--line);
}

.copy-btn {
  margin-left: auto;
}

.query-output {
  display: none;
  min-height: 160px;
  max-height: 280px;
  margin: 0;
  padding: 16px;
  overflow: auto;
  color: #d9e8fb;
  font-family: var(--mono);
  font-size: 0.88rem;
  line-height: 1.65;
  white-space: pre-wrap;
}

.query-output.active {
  display: block;
}

.panel-card {
  padding: 16px;
}

.panel-card h3 {
  margin: 0 0 12px;
  font-size: 1rem;
}

.form-label {
  display: block;
  margin-bottom: 8px;
  color: #dbe8f7;
  font-weight: 700;
}

.column-control-list {
  display: grid;
  gap: 8px;
}

.column-control {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 9px;
  padding: 9px;
  background: rgba(7, 11, 18, 0.68);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.column-control small {
  color: var(--warning);
  font-family: var(--mono);
  font-size: 0.7rem;
}

.join-summary {
  padding: 12px;
  background: rgba(56, 213, 255, 0.08);
  border: 1px solid rgba(56, 213, 255, 0.18);
  border-radius: 8px;
  color: var(--text);
  font-family: var(--mono);
  line-height: 1.6;
}

.validation-warning-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 12px 12px 0;
}

.validation-warning-list:empty {
  display: none;
}

.warning-badge {
  padding: 6px 10px;
  background: rgba(255, 191, 105, 0.11);
  border: 1px solid rgba(255, 191, 105, 0.35);
  border-radius: 999px;
  color: var(--warning);
  font-family: var(--mono);
  font-size: 0.72rem;
}

.sql-keyword {
  color: var(--accent);
  font-weight: 800;
}

.sql-column {
  color: #b9a7ff;
}

.sql-value {
  color: var(--warning);
}

.condition-pill {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
  padding: 8px 10px;
  background: rgba(7, 11, 18, 0.68);
  border: 1px solid rgba(124, 92, 255, 0.28);
  border-radius: 8px;
  font-family: var(--mono);
  font-size: 0.72rem;
}

.remove-condition-btn,
.remove-custom-column-btn {
  background: rgba(255, 107, 107, 0.1);
  border: 1px solid rgba(255, 107, 107, 0.35);
  border-radius: 8px;
  color: var(--danger);
  min-height: 34px;
}

.remove-condition-btn {
  min-width: 34px;
}

.canvas-context-menu {
  display: none;
  position: fixed;
  z-index: 50;
  width: 184px;
  overflow: hidden;
  background: #101a2b;
  border: 1px solid rgba(56, 213, 255, 0.35);
  border-radius: 8px;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.32);
}

.canvas-context-menu.show {
  display: block;
}

.canvas-context-menu button {
  width: 100%;
  padding: 12px 14px;
  background: transparent;
  border: none;
  color: var(--text);
  text-align: left;
}

.canvas-context-menu button:hover {
  background: rgba(56, 213, 255, 0.1);
  color: var(--accent);
}

.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 60;
  place-items: center;
  padding: 18px;
  background: rgba(1, 6, 13, 0.76);
}

.modal-overlay.show {
  display: grid;
}

.modal-card {
  width: min(720px, 100%);
  max-height: min(760px, 92vh);
  overflow: auto;
  background: #101a2b;
  border: 1px solid rgba(56, 213, 255, 0.28);
  border-radius: 8px;
  box-shadow: 0 28px 80px rgba(0, 0, 0, 0.45);
}

.modal-header,
.modal-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px;
  border-bottom: 1px solid var(--line);
}

.modal-footer {
  border-top: 1px solid var(--line);
  border-bottom: none;
}

.modal-body {
  display: grid;
  gap: 12px;
  padding: 18px;
}

.custom-column-list {
  display: grid;
  gap: 10px;
}

.custom-column-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 150px 42px;
  gap: 10px;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 1180px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar-panel,
  .right-panel {
    border: none;
  }

  .sidebar-actions,
  .schema-tabs {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .schema-table-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  #query-canvas {
    height: 540px;
  }
}

@media (max-width: 720px) {
  .sidebar-panel,
  .right-panel,
  .canvas-panel {
    padding: 16px;
  }

  .canvas-toolbar,
  .modal-header,
  .modal-footer {
    align-items: stretch;
    flex-direction: column;
  }

  .schema-tabs,
  .sidebar-actions,
  .schema-table-list,
  .stats-strip,
  .custom-column-row {
    grid-template-columns: 1fr;
  }

  #query-canvas {
    height: 460px;
  }
}