/* ═══════════════════════════════════════════════════════════════════════
   CodeCheck Design System — CSS Custom Properties & Base Styles
   ═══════════════════════════════════════════════════════════════════════ */

/* ── Fonts ──────────────────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

/* ── Light theme tokens ──────────────────────────────────────────────── */
:root {
  /* Backgrounds */
  --color-bg:          #fafafa;
  --color-bg-elevated: #ffffff;
  --color-bg-subtle:   #f4f4f5;
  --color-bg-overlay:  rgba(0, 0, 0, 0.4);

  /* Background aliases used by templates */
  --color-bg-primary:   var(--color-bg);
  --color-bg-secondary: var(--color-bg-elevated);
  --color-bg-tertiary:  var(--color-bg-subtle);

  /* Borders */
  --color-border:        #e4e4e7;
  --color-border-strong: #d4d4d8;
  --color-border-subtle: var(--color-border);

  /* Text */
  --color-text:           #18181b;
  --color-text-muted:     #71717a;
  --color-text-subtle:    #a1a1aa;
  --color-text-inverse:   #ffffff;

  /* Text aliases used by templates */
  --color-text-primary:   var(--color-text);
  --color-text-secondary: var(--color-text-muted);

  /* Accent — Indigo */
  --color-accent:        #6366f1;
  --color-accent-hover:  #4f46e5;
  --color-accent-subtle: #eef2ff;
  --color-accent-fg:     #ffffff;

  /* Semantic */
  --color-success:        #16a34a;
  --color-success-subtle: #dcfce7;
  --color-success-fg:     #166534;
  --color-warning:        #d97706;
  --color-warning-subtle: #fef3c7;
  --color-warning-fg:     #92400e;
  --color-error:          #dc2626;
  --color-error-subtle:   #fee2e2;
  --color-error-fg:       #991b1b;
  --color-info:           #0ea5e9;
  --color-info-subtle:    #e0f2fe;
  --color-info-fg:        #075985;

  /* Code */
  --color-code-bg:   #f4f4f5;
  --color-code-text: #18181b;

  /* Typography */
  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono: "JetBrains Mono", "Fira Code", Menlo, Monaco, Consolas, monospace;

  /* Radius */
  --radius-sm:   4px;
  --radius-md:   8px;
  --radius-lg:   12px;
  --radius-xl:   16px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.08), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);

  /* Transitions */
  --transition-fast:   100ms ease;
  --transition-base:   200ms ease;
  --transition-slow:   300ms ease;

  /* Z-index scale */
  --z-dropdown: 50;
  --z-sticky:   60;
  --z-overlay:  70;
  --z-modal:    80;
  --z-toast:    90;
}

/* ── Dark theme tokens ───────────────────────────────────────────────── */
html.dark, [data-theme="dark"] {
  --color-bg:          #09090b;
  --color-bg-elevated: #18181b;
  --color-bg-subtle:   #27272a;

  --color-border:        #27272a;
  --color-border-strong: #3f3f46;

  --color-text:        #fafafa;
  --color-text-muted:  #a1a1aa;
  --color-text-subtle: #71717a;

  --color-accent:        #818cf8;
  --color-accent-hover:  #a5b4fc;
  --color-accent-subtle: #312e81;
  --color-accent-fg:     #ffffff;

  --color-success:        #22c55e;
  --color-success-subtle: #14532d;
  --color-success-fg:     #bbf7d0;
  --color-warning:        #f59e0b;
  --color-warning-subtle: #451a03;
  --color-warning-fg:     #fde68a;
  --color-error:          #f87171;
  --color-error-subtle:   #450a0a;
  --color-error-fg:       #fecaca;
  --color-info:           #38bdf8;
  --color-info-subtle:    #082f49;
  --color-info-fg:        #bae6fd;

  --color-code-bg:   #27272a;
  --color-code-text: #fafafa;

  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.4), 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4), 0 2px 4px -2px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4), 0 4px 6px -4px rgba(0, 0, 0, 0.3);
}

/* ── Accessibility mode ──────────────────────────────────────────────── */
html.a11y {
  font-size: 18px;
  --color-bg: #ffffff;
  --color-bg-elevated: #ffffff;
  --color-bg-subtle: #f3f4f6;
  --color-border: #111827;
  --color-border-strong: #000000;
  --color-text: #000000;
  --color-text-muted: #374151;
  --color-text-subtle: #4b5563;
  --color-accent: #111827;
  --color-accent-hover: #000000;
  --color-accent-subtle: #e5e7eb;
  --color-success: #166534;
  --color-warning: #92400e;
  --color-error: #991b1b;
  --color-info: #075985;
  --shadow-xs: none;
  --shadow-sm: none;
  --shadow-md: none;
  --shadow-lg: none;
}
html.dark.a11y {
  --color-bg: #000000;
  --color-bg-elevated: #0f172a;
  --color-bg-subtle: #111827;
  --color-border: #ffffff;
  --color-border-strong: #ffffff;
  --color-text: #ffffff;
  --color-text-muted: #e5e7eb;
  --color-text-subtle: #d1d5db;
  --color-accent: #ffffff;
  --color-accent-hover: #f3f4f6;
  --color-accent-subtle: #1f2937;
}
html.a11y a {
  text-decoration: underline !important;
  text-underline-offset: 0.2em;
}
html.a11y *:focus-visible {
  outline: 3px solid var(--color-accent) !important;
  outline-offset: 3px !important;
}
html.a11y *,
html.a11y *::before,
html.a11y *::after {
  transition: none !important;
  animation: none !important;
  scroll-behavior: auto !important;
}
html.a11y .card,
html.a11y .stat-card,
html.a11y .form-input,
html.a11y .form-select,
html.a11y .form-textarea,
html.a11y .form-check,
html.a11y .btn,
html.a11y table,
html.a11y section,
html.a11y aside,
html.a11y nav,
html.a11y details,
html.a11y iframe {
  border-color: var(--color-border-strong) !important;
  border-width: 2px !important;
  box-shadow: none !important;
}
html.a11y .badge,
html.a11y .rounded-full {
  border: 1px solid currentColor;
}

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

html {
  font-family: var(--font-sans);
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

code, kbd, pre, samp {
  font-family: var(--font-mono);
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ── Scrollbar (WebKit) ──────────────────────────────────────────────── */
::-webkit-scrollbar            { width: 6px; height: 6px; }
::-webkit-scrollbar-track      { background: transparent; }
::-webkit-scrollbar-thumb      { background: var(--color-border-strong); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover{ background: var(--color-text-subtle); }

/* ── Skip link ───────────────────────────────────────────────────────── */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: var(--z-toast);
  padding: 0.5rem 1rem;
  background: var(--color-accent);
  color: var(--color-accent-fg);
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.875rem;
  transition: top var(--transition-base);
}
.skip-link:focus {
  top: 1rem;
}

/* ── Nav link ────────────────────────────────────────────────────────── */
.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.75rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: background var(--transition-fast), color var(--transition-fast);
}
.nav-link:hover {
  background: var(--color-bg-subtle);
  color: var(--color-text);
}
.nav-link.active {
  background: var(--color-accent-subtle);
  color: var(--color-accent);
}

/* ── HTMX loading bar ────────────────────────────────────────────────── */
#htmx-indicator {
  position: fixed;
  top: 0;
  left: 0;
  z-index: var(--z-toast);
  width: 0;
  height: 3px;
  background: var(--color-accent);
  transition: width 0.3s ease;
  pointer-events: none;
  border-radius: 0 var(--radius-full) var(--radius-full) 0;
}
#htmx-indicator.active {
  width: 80%;
  transition: width 4s ease;
}

/* ── Toast notifications ─────────────────────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column-reverse;
  gap: 0.625rem;
  pointer-events: none;
  width: min(24rem, calc(100vw - 2rem));
}

[data-flash-message] {
  display: none !important;
}

.toast {
  position: relative;
  pointer-events: auto;
  overflow: hidden;
  padding: 0.875rem 2.75rem 1rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-strong);
  border-left-width: 4px;
  background: var(--color-bg-elevated);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  font-size: 0.875rem;
  line-height: 1.5;
  color: var(--color-text);
  animation: toast-in 0.25s ease;
}

.toast.toast-exit,
.toast.toast-out {
  animation: toast-out 0.2s ease forwards;
}

.toast-icon {
  flex: 0 0 auto;
  font-weight: 700;
  line-height: 1.5;
}

.toast-body {
  min-width: 0;
  overflow-wrap: anywhere;
}

.toast-close {
  position: absolute;
  top: 0.45rem;
  right: 0.55rem;
  width: 1.75rem;
  height: 1.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg-subtle);
  color: var(--color-text);
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
}

.toast-progress {
  position: absolute;
  left: 0;
  bottom: 0;
  height: 3px;
  width: 100%;
  transform-origin: left center;
  background: currentColor;
  opacity: 0.75;
  animation-name: toast-progress;
  animation-timing-function: linear;
  animation-fill-mode: forwards;
}

.toast-success { border-left-color: var(--color-success); }
.toast-error   { border-left-color: var(--color-error); }
.toast-warning { border-left-color: var(--color-warning); }
.toast-info    { border-left-color: var(--color-info); }

@keyframes toast-in {
  from { transform: translateX(110%); opacity: 0; }
  to   { transform: translateX(0);    opacity: 1; }
}
@keyframes toast-out {
  from { transform: translateX(0);    opacity: 1; }
  to   { transform: translateX(110%); opacity: 0; }
}
@keyframes toast-progress {
  from { transform: scaleX(1); }
  to   { transform: scaleX(0); }
}

/* ── Confirm modal ───────────────────────────────────────────────────── */
.confirm-modal[hidden] {
  display: none !important;
}

.confirm-modal {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: grid;
  place-items: center;
  padding: 1rem;
}

.confirm-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
}

.confirm-dialog {
  position: relative;
  width: min(28rem, 100%);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-lg);
  background: var(--color-bg-elevated);
  color: var(--color-text);
  box-shadow: var(--shadow-lg);
  padding: 1.25rem;
}

.confirm-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

/* ── Skeleton loader ─────────────────────────────────────────────────── */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-bg-subtle) 25%,
    var(--color-border)    50%,
    var(--color-bg-subtle) 75%
  );
  background-size: 200% 100%;
  animation: skeleton-shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}

@keyframes skeleton-shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ── Card component ──────────────────────────────────────────────────── */
.card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xs);
  padding: 1.25rem;
  overflow: hidden;
}

.card-hover {
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}
.card-hover:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

/* ── Badge component ─────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.125rem 0.625rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 500;
  line-height: 1.5;
  white-space: nowrap;
}

.badge-success { background: var(--color-success-subtle); color: var(--color-success-fg); }
.badge-error   { background: var(--color-error-subtle);   color: var(--color-error-fg); }
.badge-warning { background: var(--color-warning-subtle); color: var(--color-warning-fg); }
.badge-info    { background: var(--color-info-subtle);    color: var(--color-info-fg); }
.badge-accent  { background: var(--color-accent-subtle);  color: var(--color-accent); }
.badge-neutral { background: var(--color-bg-subtle);      color: var(--color-text-muted); }

/* ── Form component ──────────────────────────────────────────────────── */
.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.form-label {
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.4;
  color: var(--color-text);
}

.form-input,
.form-select,
.form-textarea {
  display: block;
  width: 100%;
  min-height: 2.625rem;
  padding: 0.625rem 0.75rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-bg-elevated);
  color: var(--color-text);
  box-shadow: var(--shadow-xs);
  font: inherit;
  font-size: 0.875rem;
  line-height: 1.5;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast), background var(--transition-fast);
}

.form-textarea {
  min-height: 6rem;
  resize: vertical;
}

.form-select {
  padding-right: 2rem;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-subtle);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.16);
  outline: none;
}

.form-input[aria-invalid="true"],
.form-select[aria-invalid="true"],
.form-textarea[aria-invalid="true"] {
  border-color: var(--color-error);
}

.form-error {
  color: var(--color-error);
  font-size: 0.75rem;
  line-height: 1.4;
}

.form-check {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  width: 100%;
  padding: 0.75rem 0.875rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-elevated);
  color: var(--color-text);
  cursor: pointer;
}

.form-check:hover {
  background: var(--color-bg-subtle);
}

.form-checkbox-lg {
  width: 1.25rem;
  height: 1.25rem;
  flex: 0 0 1.25rem;
  accent-color: var(--color-accent);
}

.markdown-content {
  color: var(--color-text);
  line-height: 1.7;
}

.markdown-content > * + * {
  margin-top: 0.75rem;
}

.markdown-content h1,
.markdown-content h2,
.markdown-content h3,
.markdown-content h4 {
  color: var(--color-text);
  font-weight: 700;
  line-height: 1.3;
}

.markdown-content h1 { font-size: 1.5rem; }
.markdown-content h2 { font-size: 1.25rem; }
.markdown-content h3,
.markdown-content h4 { font-size: 1.05rem; }

.markdown-content ul,
.markdown-content ol {
  padding-left: 1.25rem;
}

.markdown-content ul { list-style: disc; }
.markdown-content ol { list-style: decimal; }

.markdown-content code {
  padding: 0.125rem 0.25rem;
  border-radius: var(--radius-sm);
  background: var(--color-code-bg);
  color: var(--color-code-text);
  font-size: 0.875em;
}

.markdown-content .markdown-code {
  padding: 0.875rem;
  overflow: auto;
  border-radius: var(--radius-md);
  background: var(--color-code-bg);
  color: var(--color-code-text);
  font-size: 0.875rem;
}

.markdown-content .markdown-code code {
  padding: 0;
  background: transparent;
}

.markdown-content a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.markdown-content table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
}

.markdown-content th,
.markdown-content td {
  padding: 0.45rem 0.625rem;
  border: 1px solid var(--color-border);
  text-align: left;
  vertical-align: top;
}

.markdown-content th {
  background: var(--color-bg-subtle);
  font-weight: 600;
}

.markdown-inline code {
  padding: 0.1rem 0.3rem;
  border-radius: var(--radius-sm);
  background: var(--color-code-bg);
  color: var(--color-code-text);
  font-size: 0.9em;
}

.markdown-inline strong {
  font-weight: 700;
}

/* ── Button component ────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 2.5rem;
  padding: 0 1rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  transition:
    background var(--transition-fast),
    border-color var(--transition-fast),
    color var(--transition-fast),
    box-shadow var(--transition-fast),
    transform var(--transition-fast);
  white-space: nowrap;
  border: 1px solid transparent;
  text-decoration: none;
  vertical-align: middle;
}

.btn:active { transform: scale(0.97); }
.btn:disabled, .btn[disabled] { opacity: 0.5; pointer-events: none; }

.btn-primary {
  background: var(--color-accent);
  color: var(--color-accent-fg);
  box-shadow: var(--shadow-xs);
}
.btn-primary:hover { background: var(--color-accent-hover); box-shadow: var(--shadow-sm); }

.btn-secondary {
  background: var(--color-bg-elevated);
  color: var(--color-text);
  border: 1px solid var(--color-border-strong);
  box-shadow: var(--shadow-xs);
}
.btn-secondary:hover { background: var(--color-bg-subtle); }

.btn-strong {
  border-width: 2px;
  border-color: var(--color-border-strong);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
}
.btn-ghost:hover { background: var(--color-bg-subtle); color: var(--color-text); }

.btn-danger {
  background: var(--color-error);
  color: #fff;
}
.btn-danger:hover { opacity: 0.9; }

.btn-success {
  background: var(--color-success);
  color: #fff;
}
.btn-success:hover { opacity: 0.9; }

.btn-warning {
  background: var(--color-warning-subtle);
  color: var(--color-warning-fg);
  border-color: var(--color-warning);
}
.btn-warning:hover { background: var(--color-warning); color: #fff; }

.btn-sm {
  min-height: 2rem;
  padding: 0 0.75rem;
  border-radius: var(--radius-md);
  font-size: 0.8125rem;
}
.btn-lg {
  min-height: 2.75rem;
  padding: 0 1.25rem;
  font-size: 1rem;
}

/* ── Progress bar ────────────────────────────────────────────────────── */
.progress-track {
  height: 6px;
  background: var(--color-bg-subtle);
  border-radius: var(--radius-full);
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  border-radius: var(--radius-full);
  background: var(--color-accent);
  transition: width var(--transition-slow);
}
.progress-fill.progress-success { background: var(--color-success); }
.progress-fill.progress-warning { background: var(--color-warning); }
.progress-fill.progress-error   { background: var(--color-error); }

/* ── Stat card ───────────────────────────────────────────────────────── */
.stat-card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: 1.25rem;
  box-shadow: var(--shadow-xs);
}

.stat-label {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
  margin-top: 0.25rem;
}

.stat-link {
  display: inline-block;
  margin-top: 0.5rem;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}
.stat-link:hover {
  color: var(--color-accent-hover);
  text-decoration: underline;
}

/* ── Table ───────────────────────────────────────────────────────────── */
.data-table {
  width: 100%;
  font-size: 0.875rem;
  border-collapse: collapse;
}
.data-table thead {
  background: var(--color-bg-subtle);
  border-bottom: 1px solid var(--color-border);
}
.data-table th {
  padding: 0.625rem 1rem;
  text-align: left;
  font-weight: 500;
  color: var(--color-text-muted);
  white-space: nowrap;
}
.data-table td {
  padding: 0.75rem 1rem;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}
.data-table tbody tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover { background: var(--color-bg-subtle); }

/* ── Countdown timer accent ──────────────────────────────────────────── */
.countdown-urgent { color: var(--color-error); font-weight: 600; }
.countdown-warn   { color: var(--color-warning); font-weight: 600; }
.countdown-ok     { color: var(--color-text-muted); }

/* ── Responsive assignment split pane ────────────────────────────────── */
.split-pane {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  min-height: calc(100vh - 4rem);
}
@media (max-width: 1023px) {
  .split-pane { grid-template-columns: 1fr; }
}

/* ── SQL schema diagram ───────────────────────────────────────────────── */
.sql-schema-shell {
  margin-top: 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-bg-elevated);
  overflow: hidden;
}

.sql-schema-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.5rem 0.875rem;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-subtle);
}

.sql-schema-title {
  margin: 0;
  color: var(--color-text-muted);
  font-size: 0.8125rem;
  font-weight: 600;
}

.sql-schema-subtitle {
  margin: 0;
  color: var(--color-text-subtle);
  font-size: 0.6875rem;
}

.sql-schema-canvas {
  position: relative;
  overflow: auto;
  padding: 0.875rem;
  background-color: var(--color-bg-subtle);
}

.sql-schema-lines {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  overflow: visible;
}

.sql-schema-grid {
  position: relative;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  align-items: start;
}

.sql-schema-table {
  flex: 0 0 auto;
  width: 11rem;
  overflow: hidden;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-md);
  background: var(--color-bg-elevated);
}

.sql-schema-table-head {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.625rem;
  background: var(--color-bg-subtle);
  border-bottom: 1px solid var(--color-border-strong);
}

.sql-schema-table-icon {
  font-size: 0.75rem;
  line-height: 1;
  color: var(--color-text-muted);
}

.sql-schema-table-name {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text);
  overflow-wrap: anywhere;
}

.sql-schema-columns {
  display: flex;
  flex-direction: column;
}

.sql-schema-column {
  padding: 0.3rem 0.625rem;
  border-top: 1px solid var(--color-border);
}

.sql-schema-column-main {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.5rem;
}

.sql-schema-column-name {
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  overflow-wrap: anywhere;
}

.sql-schema-column-type {
  color: var(--color-text-subtle);
  font-size: 0.6875rem;
  white-space: nowrap;
}

.sql-schema-column-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.2rem;
  margin-top: 0.2rem;
}

.sql-schema-chip {
  display: inline-flex;
  align-items: center;
  padding: 0 0.3rem;
  border-radius: 3px;
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: 0.5625rem;
  font-weight: 700;
  line-height: 1.5;
}

.sql-schema-chip-pk {
  background: var(--color-warning-subtle);
  border-color: transparent;
  color: var(--color-warning-fg);
}

.sql-schema-chip-fk {
  background: var(--color-bg-subtle);
  border-color: transparent;
  color: var(--color-text-muted);
}

.sql-schema-reference {
  color: var(--color-text-subtle);
  font-size: 0.625rem;
}

.sql-schema-relation-line {
  fill: none;
  stroke: var(--color-border-strong);
  stroke-width: 1.5;
  stroke-dasharray: 5 3;
  opacity: 0.6;
}

.sql-schema-relation-dot {
  fill: var(--color-text-muted);
  stroke: var(--color-bg-elevated);
  stroke-width: 1.5;
}

/* ── Reduce motion ───────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}