/* Site chrome + page layout */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: .5rem 1.5rem;
  padding: .6rem 1.25rem;
  background: var(--bg-2);
  border-bottom: 1px solid var(--line);
}
.brand { font-weight: 800; letter-spacing: .08em; color: var(--accent); text-decoration: none; font-size: 1.2rem; }
.brand span { color: var(--text); font-weight: 500; letter-spacing: 0; }
.site-header nav { display: flex; flex-wrap: wrap; gap: .25rem; }
.site-header nav a { color: var(--text); text-decoration: none; padding: .4em .8em; border-radius: 6px; }
.site-header nav a:hover { background: var(--panel); }
.site-header nav a.active { background: var(--panel); box-shadow: inset 0 -2px 0 var(--accent); }

.site-footer { margin-top: auto; padding: 1rem 1.25rem; color: var(--muted); font-size: .8rem; border-top: 1px solid var(--line); }
.site-footer p { margin: 0; }

.page { width: min(720px, 100% - 2rem); margin: 2rem auto; }
.link-list { padding-left: 1.2rem; }
.link-list li { margin: .4em 0; }

/* Editor */
.editor-page { flex: 1; display: flex; flex-direction: column; }

.gate { flex: 1; display: grid; place-items: center; padding: 2rem 1rem; }
.gate-card {
  width: min(420px, 100%);
  display: grid;
  gap: .9rem;
  padding: 1.75rem;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
}
.gate-card p { margin: 0; color: var(--muted); }

.editor { display: none; flex-direction: column; flex: 1; min-height: 0; }
body.editor-open .editor { display: flex; }

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: .75rem 2rem;
  align-items: center;
  padding: .6rem 1.25rem;
  background: var(--bg-2);
  border-bottom: 1px solid var(--line);
}
.toolbar-group { display: flex; flex-wrap: wrap; gap: .5rem 1.25rem; align-items: center; }
.toolbar label { display: inline-flex; align-items: center; gap: .5em; font-size: .9rem; }

.editor-body {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  min-height: 0;
}
.canvas-scroll { overflow: auto; padding: 1.25rem; }
.sidebar {
  border-left: 1px solid var(--line);
  background: var(--bg-2);
  padding: 1rem;
  overflow-y: auto;
  max-height: calc(100vh - 110px);
  position: sticky;
  top: 0;
  align-self: start;
}
.sidebar h2 { font-size: 1rem; text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }

@media (max-width: 860px) {
  .editor-body { grid-template-columns: 1fr; }
  .sidebar { border-left: 0; border-top: 1px solid var(--line); position: static; max-height: none; }
}

.status-bar {
  margin: 0;
  padding: .45rem 1.25rem;
  font-size: .85rem;
  color: var(--muted);
  background: var(--bg);
  border-bottom: 1px solid var(--line);
  min-height: 2.1rem;
}
.status-bar[data-kind="warn"] { color: #ffd9a8; background: #4a2f12; }

/* Save & share */
.save-state { font-size: .8rem; color: var(--muted); }
.save-state[data-state="dirty"] { color: var(--accent); }
.save-state[data-state="saved"] { color: #7ddc8a; }

.dialog {
  width: min(520px, calc(100vw - 2rem));
  padding: 1.5rem;
  background: var(--panel);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 12px;
}
.dialog::backdrop { background: rgba(10, 6, 14, .7); }
.dialog h2 { margin-top: 0; }
.dialog-lead { color: var(--muted); margin: 0 0 1rem; }
.dialog .field { display: grid; gap: .3rem; margin-bottom: .8rem; font-size: .9rem; }
.dialog .field small { color: var(--muted); }
.dialog input[type="text"], .dialog input:not([type]), .dialog textarea {
  font: inherit;
  width: 100%;
  background: var(--bg-2);
  color: var(--text);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: .45em .6em;
}
.dialog textarea { resize: vertical; }
.dialog-actions { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: 1rem; }
.field-errors { white-space: pre-line; background: #5a1f27; border: 1px solid #b8323a; border-radius: 6px; padding: .5em .8em; margin: .8rem 0 0; }
.copy-row { display: flex; gap: .5rem; }
.copy-row input { flex: 1; min-width: 0; }
.warn-note { background: #4a2f12; color: #ffd9a8; border-radius: 6px; padding: .6em .8em; font-size: .85rem; }

/* Read-only viewer */
.viewer { padding: 1.25rem; }
.viewer-head { max-width: 900px; margin-bottom: 1rem; }
.viewer-head h1 { margin-bottom: .2rem; }
.byline { color: var(--muted); margin: 0 0 .6rem; font-size: .9rem; }
.viewer-desc { white-space: pre-line; }
.viewer-actions { display: flex; flex-wrap: wrap; gap: .5rem; margin: .8rem 0; }
.btn { text-decoration: none; display: inline-block; }
.legend { display: flex; flex-wrap: wrap; gap: .4rem 1rem; list-style: none; padding: 0; margin: 1rem 0 0; font-size: .85rem; color: var(--muted); }
.legend li { display: inline-flex; align-items: center; gap: .4rem; }
.legend .swatch { width: 1.2rem; height: 1.2rem; border-radius: 20%; background: var(--tile-color); border: 1px solid rgba(255, 255, 255, .5); display: inline-grid; place-items: center; font-size: .6rem; font-weight: 700; color: #fff; }