:root {
  --background: #ffffff;
  --surface: #ffffff;
  --foreground: #171717;
  --muted: #5f6368;
  --border: #d9dbdf;
  --accent: #171717;
  --accent-text: #ffffff;
  --danger: #c5221f;
  --danger-text: #ffffff;
  --danger-soft: rgba(197, 34, 31, 0.1);
  --amber: #b06000;
  --amber-soft: rgba(245, 158, 11, 0.14);
  --success-soft: rgba(30, 142, 62, 0.12);
  --success: #1e8e3e;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --background: #0a0a0a;
    --surface: #111214;
    --foreground: #ededed;
    --muted: #a1a5ab;
    --border: #2c2e33;
    --accent: #ededed;
    --accent-text: #0a0a0a;
    --danger: #ea4335;
    --danger-text: #ffffff;
    --amber: #fbbc04;
    --success: #5bb974;
    color-scheme: dark;
  }
}
* { box-sizing: border-box; }
html { font-size: clamp(1rem, calc(0.40625rem + min(1.3vh, 0.8vw)), 1.5rem); }
body { margin: 0; background: var(--background); color: var(--foreground); font-family: Arial, Helvetica, sans-serif; line-height: 1.45; }
a { color: inherit; text-underline-offset: 4px; }
h1 { font-size: 1.6rem; margin: 0; font-weight: 600; }
h2 { font-size: 1.05rem; margin: 0; font-weight: 600; }
p { margin: 0; }
.muted { color: var(--muted); font-size: 0.9rem; }
.stack { display: flex; flex-direction: column; gap: 1rem; }
.row { display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; }
.spread { display: flex; align-items: center; justify-content: space-between; gap: 0.75rem; flex-wrap: wrap; }
.brand { font-weight: 700; letter-spacing: 0.02em; }

.auth-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; padding: 1.5rem; }
.auth-box { width: 100%; max-width: 24rem; display: flex; flex-direction: column; gap: 1.25rem; }
.auth-footer { display: flex; flex-direction: column; gap: 0.75rem; font-size: 0.9rem; color: var(--muted); }
.divider { display: flex; align-items: center; gap: 0.75rem; color: var(--muted); font-size: 0.85rem; }
.divider::before, .divider::after { content: ''; flex: 1; border-top: 1px solid var(--border); }



.field { display: flex; flex-direction: column; gap: 0.35rem; font-size: 0.9rem; }
.field input, .field select { font: inherit; font-size: 1rem; padding: 0.6rem 0.75rem; border: 1px solid var(--border); border-radius: 0.5rem; background: var(--surface); color: var(--foreground); width: 100%; }
.field input:focus, .field select:focus { outline: 2px solid var(--foreground); outline-offset: 1px; }

.button { font: inherit; font-size: 0.95rem; padding: 0.6rem 1rem; border-radius: 0.5rem; border: 1px solid var(--border); background: transparent; color: var(--foreground); cursor: pointer; }
.button:disabled { opacity: 0.55; cursor: default; }
.button-primary { background: var(--accent); color: var(--accent-text); border-color: var(--accent); }
.button-danger { background: var(--danger); color: var(--danger-text); border-color: var(--danger); }
.button-wide { width: 100%; }

.alert { border-radius: 0.5rem; padding: 0.7rem 0.9rem; font-size: 0.92rem; border: 1px solid; }
.alert-error { background: var(--danger-soft); border-color: var(--danger); }
.alert-success { background: var(--success-soft); border-color: var(--success); }
.alert-amber { background: var(--amber-soft); border-color: var(--amber); }
.alert-info { border-color: var(--border); }

.card { border: 1px solid var(--border); border-radius: 0.75rem; background: var(--surface); padding: 1.25rem; display: flex; flex-direction: column; gap: 1rem; }
.confirm-panel { border: 1px solid var(--danger); border-radius: 0.5rem; padding: 0.9rem; display: flex; flex-direction: column; gap: 0.75rem; }
.list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; }
.list > li { padding: 0.8rem 0; border-top: 1px solid var(--border); display: flex; flex-direction: column; gap: 0.6rem; }
.list > li:first-child { border-top: 0; padding-top: 0; }
.tag { font-size: 0.75rem; border: 1px solid var(--border); border-radius: 999px; padding: 0.05rem 0.5rem; color: var(--muted); }
.language-choice { display: flex; gap: 0.5rem; }
.link-button { font: inherit; background: none; border: 0; padding: 0; color: inherit; cursor: pointer; text-decoration: underline; text-underline-offset: 4px; }
.link-button[aria-current='true'] { font-weight: 700; text-decoration: none; }

@media (pointer: coarse) {
  .button, .field input, .field select { min-height: 2.75rem; }
}

/* Charts */
:root { --erd-own: #dbe7ff; --erd-inherited: #eceef1; --erd-line: #8a8f98; --erd-selected: #1a73e8; }
@media (prefers-color-scheme: dark) { :root { --erd-own: #1f3157; --erd-inherited: #24262b; --erd-line: #8a8f98; --erd-selected: #8ab4f8; } }
.app { min-height: 100vh; display: flex; flex-direction: column; }
.top-bar { padding: 0.75rem 1.5rem; border-bottom: 1px solid var(--border); }
.top-bar a { text-decoration: none; }
.organization-switcher { display: flex; align-items: center; gap: 0.5rem; }
.organization-switcher select, .input { font: inherit; font-size: 0.95rem; padding: 0.4rem 0.6rem; border: 1px solid var(--border); border-radius: 0.5rem; background: var(--surface); color: var(--foreground); }
.page { width: 100%; max-width: 72rem; margin: 0 auto; padding: 1.5rem; }
.page.chart-page { max-width: none; }
.page.narrow { max-width: 42rem; }
.stack-tight { display: flex; flex-direction: column; gap: 0.35rem; }
.row-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 0.75rem; }
.button-link { display: inline-block; text-align: center; text-decoration: none; }
.button-small { padding: 0.25rem 0.6rem; font-size: 0.82rem; }
.list.compact > li { padding: 0.4rem 0; gap: 0.3rem; flex-direction: row; }
.field textarea { font: inherit; font-size: 0.95rem; padding: 0.6rem 0.75rem; border: 1px solid var(--border); border-radius: 0.5rem; background: var(--surface); color: var(--foreground); width: 100%; }
.tabs { border-bottom: 1px solid var(--border); gap: 0; }
.tab { font: inherit; background: none; border: 0; border-bottom: 2px solid transparent; padding: 0.6rem 1rem; color: var(--muted); cursor: pointer; }
.tab-current { color: var(--foreground); border-bottom-color: var(--foreground); font-weight: 600; }
.sql { font-size: 0.8rem; background: var(--erd-inherited); border-radius: 0.5rem; padding: 0.9rem; overflow: auto; max-height: 60vh; white-space: pre; }
.changes { margin: 0; padding-left: 1rem; font-size: 0.82rem; }
details summary { cursor: pointer; }

.drawing-layout { display: grid; grid-template-columns: 1fr 22rem; gap: 1rem; align-items: start; }
@media (max-width: 900px) { .drawing-layout { grid-template-columns: 1fr; } }
.canvas { position: relative; border: 1px solid var(--border); border-radius: 0.75rem; overflow: hidden; background: var(--background); }
.canvas-tools { position: absolute; top: 0.6rem; right: 0.6rem; gap: 0.4rem; }
.canvas-tools .button { background: var(--surface); padding: 0.3rem 0.7rem; font-size: 0.82rem; }
.canvas-svg { display: block; width: 100%; height: 72vh; touch-action: none; cursor: grab; user-select: none; }
.erd-group { fill: none; stroke: var(--border); stroke-dasharray: 6 4; }
.erd-group-title { fill: var(--muted); font-size: 14px; font-weight: 600; }
.erd-line { fill: none; stroke: var(--erd-line); stroke-width: 1.5; }
.erd-table-group { cursor: pointer; }
.erd-table { fill: var(--surface); stroke: var(--border); }
.erd-inherited { stroke-dasharray: 4 3; }
.erd-selected { stroke: var(--erd-selected); stroke-width: 2.5; stroke-dasharray: none; }
.erd-header { stroke: none; }
.erd-title { fill: var(--foreground); font-size: 13px; font-weight: 700; }
.erd-layer { fill: var(--muted); font-size: 11px; }
.erd-field text { fill: var(--foreground); font-size: 12px; }
.erd-field-inherited text { fill: var(--muted); }
.erd-key { font-weight: 700; font-size: 10px !important; }
.erd-type { fill: var(--muted) !important; }
.table-panel .card { padding: 1rem; gap: 0.75rem; }