/* ═══════════════════════════════════════════════════════
   layout.css – Strukturelles Layout
   Header · Sidebars · Canvas-Bereich · Statusleiste
   ═══════════════════════════════════════════════════════ */

/* ── Header ─────────────────────────────────────────── */
header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0 20px;
  height: 56px;
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
  z-index: 100;
}

header .logo {
  font-family: 'Cinzel', serif;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.04em;
  white-space: nowrap;
}
header .logo span {
  color: var(--text-muted);
  font-weight: 400;
  font-size: 0.85rem;
  margin-left: 8px;
}

.toolbar        { display: flex; gap: 4px; align-items: center; flex: 1; }
.header-actions { display: flex; gap: 8px; align-items: center; }

/* ── Haupt-Layout ───────────────────────────────────── */
.main {
  display: flex;
  flex: 1;
  overflow: hidden;
}

/* ── Linke Sidebar ──────────────────────────────────── */
.sidebar-left {
  width: 260px;
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  flex-shrink: 0;
}

.sidebar-section {
  padding: 14px 16px 10px;
  border-bottom: 1px solid var(--border);
}
.sidebar-section h3,
.sidebar-heading {
  font-family: 'Cinzel', serif;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.stands-list {
  flex: 1;
  overflow-y: auto;
  padding: 10px;
}

/* Ebenen-Zeile */
.layer-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}
.layer-row input[type=checkbox] { accent-color: var(--accent); }
.layer-row label                { cursor: pointer; color: var(--text); font-size: 0.8rem; margin: 0; }

/* Tabs */
.section-tabs { display: flex; border-bottom: 1px solid var(--border); }
.section-tab  {
  flex: 1;
  padding: 8px 4px;
  text-align: center;
  font-size: 0.72rem;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all 0.15s;
}
.section-tab.active { color: var(--accent); border-bottom-color: var(--accent); }

.tab-content        { display: none; }
.tab-content.active { display: block; }

/* ── Canvas-Bereich ─────────────────────────────────── */
.canvas-wrap {
  flex: 1;
  position: relative;
  overflow: hidden;
  background: #090b11;
  background-image: radial-gradient(circle at 20% 20%, rgba(200,151,58,0.04) 0%, transparent 60%);
}

#mainCanvas {
  position: absolute;
  top: 0;
  left: 0;
  cursor: crosshair;
}

.canvas-info {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(15,17,23,0.85);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 5px 14px;
  font-size: 0.72rem;
  color: var(--text-muted);
  backdrop-filter: blur(8px);
  pointer-events: none;
  white-space: nowrap;
}

.zoom-controls {
  position: absolute;
  bottom: 12px;
  right: 12px;
  display: flex;
  gap: 4px;
}

/* ── Rechte Sidebar ─────────────────────────────────── */
.sidebar-right {
  width: 240px;
  background: var(--surface);
  border-left: 1px solid var(--border);
  overflow-y: auto;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
}

.prop-panel    { padding: 14px 16px; }
.prop-panel h3 {
  font-family: 'Cinzel', serif;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 12px;
}
.prop-row { margin-bottom: 10px; }

.no-selection {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 10px;
  color: var(--text-muted);
  font-size: 0.8rem;
  text-align: center;
  padding: 20px;
}
.no-selection svg { opacity: 0.2; }

/* ── Statusleiste ───────────────────────────────────── */
.statusbar {
  height: 26px;
  background: var(--surface);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 20px;
  font-size: 0.7rem;
  color: var(--text-muted);
  flex-shrink: 0;
}
.statusbar span b { color: var(--text); }

/* ── OSM-spezifische Elemente ───────────────────────── */
.osm-hint {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(15,17,23,0.88);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 6px 16px;
  font-size: 0.75rem;
  color: var(--text-muted);
  pointer-events: none;
  white-space: nowrap;
  backdrop-filter: blur(6px);
  z-index: 1000;
}

.osm-stats {
  position: absolute;
  top: 10px;
  right: 10px;
  background: rgba(15,17,23,0.88);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 12px;
  font-size: 0.72rem;
  color: var(--text-muted);
  z-index: 1000;
  line-height: 1.8;
  min-width: 140px;
}