/* Structure Builder — adapted to castillonelson.com color palette */
/* No global reset — the builder styles set their own margins/padding.
   A * reset here would bleed into the site header above. */

/* Variables scoped to the builder only — not :root */
#structure-app {
  --bg: #0f172a;
  --sidebar-bg: #1e293b;
  --card-bg: #1e3a5f;
  --border: #334155;
  --text: #e2e8f0;
  --text-dim: #94a3b8;
  --accent: #0891b2;
  --accent-light: #22d3ee;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --radius: 8px;
  --radius-sm: 4px;

  display: flex;
  height: calc(100vh - 64px);
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', -apple-system, sans-serif;
}

/* Sidebar */
#sidebar {
  width: 380px;
  min-width: 380px;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

#sidebar header h1 { font-size: 1.4rem; font-weight: 700; letter-spacing: -0.02em; }
#sidebar header .subtitle { color: var(--text-dim); font-size: 0.85rem; margin-top: 2px; }

/* Structure tabs */
.structure-tabs { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }
.structure-tabs .tab {
  padding: 6px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: transparent;
  color: var(--text-dim);
  font-size: 0.8rem;
  font-family: inherit;
  cursor: pointer;
  transition: all 0.15s ease;
}
.structure-tabs .tab:hover { border-color: var(--accent); color: var(--text); }
.structure-tabs .tab.active { background: var(--accent); border-color: var(--accent); color: white; }

.description {
  color: var(--text-dim);
  font-size: 0.82rem;
  line-height: 1.5;
  padding: 10px 12px;
  background: var(--card-bg);
  border-radius: var(--radius);
  border-left: 3px solid var(--accent);
}

section > label:first-child {
  display: block; font-size: 0.75rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--text-dim); margin-bottom: 8px;
}

.input-row { display: flex; gap: 12px; margin-top: 8px; }
.input-group { flex: 1; }
.input-group label { display: block; font-size: 0.8rem; color: var(--text-dim); margin-bottom: 4px; }

.input-with-unit { display: flex; gap: 0; }
.input-with-unit input, .param-input {
  width: 100%; padding: 8px 12px;
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: var(--radius); color: var(--text);
  font-family: 'JetBrains Mono', monospace; font-size: 0.9rem;
  outline: none; transition: border-color 0.15s ease;
}
.input-with-unit input { border-radius: var(--radius) 0 0 var(--radius); border-right: none; }
.input-with-unit select, .param-select {
  padding: 8px 8px; background: var(--card-bg);
  border: 1px solid var(--border); border-radius: 0 var(--radius) var(--radius) 0;
  color: var(--accent-light); font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem; outline: none; cursor: pointer; min-width: 50px;
}
.param-select { border-radius: var(--radius); width: 100%; }
.param-input:focus, .input-with-unit input:focus { border-color: var(--accent); }

.radio-group { display: flex; gap: 4px; margin-bottom: 8px; }
.radio-label {
  flex: 1; display: flex; align-items: center; gap: 6px;
  padding: 6px 10px; border: 1px solid var(--border);
  border-radius: var(--radius-sm); cursor: pointer; font-size: 0.78rem;
  transition: all 0.15s ease;
}
.radio-label:has(input:checked) { border-color: var(--accent); background: rgba(8, 145, 178, 0.1); }
.radio-label input { display: none; }

#parameters { display: flex; flex-direction: column; gap: 10px; }
.param-row { display: flex; gap: 12px; }
.param-row .input-group { flex: 1; }

.primary-btn {
  width: 100%; padding: 12px; background: var(--accent);
  border: none; border-radius: var(--radius); color: white;
  font-family: inherit; font-size: 0.9rem; font-weight: 600;
  cursor: pointer; transition: all 0.15s ease;
}
.primary-btn:hover { background: var(--accent-light); }
.primary-btn:active { transform: scale(0.98); }

#results { border-top: 1px solid var(--border); padding-top: 20px; }
#results h2 { font-size: 1rem; font-weight: 600; margin-bottom: 12px; }

.dimensions-box {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 12px; margin-bottom: 12px;
  font-family: 'JetBrains Mono', monospace; font-size: 0.82rem; line-height: 1.8;
}
.dimensions-box .dim-label { color: var(--text-dim); }
.dimensions-box .dim-value { color: var(--accent-light); font-weight: 500; }

.parts-table { width: 100%; border-collapse: collapse; font-size: 0.82rem; margin-bottom: 12px; }
.parts-table th {
  text-align: left; padding: 8px; border-bottom: 2px solid var(--border);
  color: var(--text-dim); font-weight: 600; font-size: 0.75rem;
  text-transform: uppercase; letter-spacing: 0.05em;
}
.parts-table td { padding: 8px; border-bottom: 1px solid var(--border); font-family: 'JetBrains Mono', monospace; }
.parts-table tr:hover td { background: rgba(8, 145, 178, 0.05); }
.parts-table .angle-cell { font-size: 0.75rem; line-height: 1.5; color: var(--warning); }
.parts-table .angle-cell em { color: var(--text-dim); font-style: italic; }

.color-picker-label { display: inline-block; position: relative; cursor: pointer; vertical-align: middle; }
.color-picker-input { position: absolute; top: 0; left: 0; width: 14px; height: 14px; opacity: 0; cursor: pointer; }
.color-picker-label:hover .color-swatch { outline: 2px solid var(--accent-light); outline-offset: 1px; }
.color-swatch { display: inline-block; width: 14px; height: 14px; border-radius: 3px; margin-right: 6px; vertical-align: middle; cursor: pointer; }
.color-picker-label .color-swatch { pointer-events: all; }

.export-btn {
  flex: 1; padding: 8px 12px; background: var(--card-bg);
  border: 1px solid var(--border); border-radius: var(--radius);
  color: var(--text); font-family: inherit; font-size: 0.8rem;
  cursor: pointer; transition: all 0.15s ease;
}
.export-btn:hover { border-color: var(--accent); color: var(--accent-light); }

.totals-box {
  background: var(--card-bg); border-radius: var(--radius);
  padding: 12px; font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem; line-height: 1.8; border-left: 3px solid var(--success);
}
.totals-box .total-label { color: var(--text-dim); }
.totals-box .total-value { color: var(--success); font-weight: 600; }

.hubs-table { width: 100%; border-collapse: collapse; font-size: 0.82rem; margin-top: 8px; margin-bottom: 12px; }
.hubs-table th { text-align: left; padding: 6px 8px; border-bottom: 2px solid var(--border); color: var(--text-dim); font-weight: 600; font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.05em; }
.hubs-table td { padding: 6px 8px; border-bottom: 1px solid var(--border); font-family: 'JetBrains Mono', monospace; }

.joint-method { background: var(--card-bg); border-radius: var(--radius); padding: 10px 12px; margin-bottom: 8px; border-left: 3px solid var(--accent); }
.joint-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 4px; font-size: 0.85rem; }
.joint-difficulty { font-size: 0.7rem; padding: 2px 8px; border-radius: 10px; background: rgba(8, 145, 178, 0.15); color: var(--accent-light); }
.joint-tools { font-size: 0.72rem; color: var(--text-dim); margin-bottom: 4px; }
.joint-desc { font-size: 0.78rem; color: var(--text); line-height: 1.4; margin-bottom: 6px; }
.joint-ascii { font-family: 'JetBrains Mono', monospace; font-size: 0.7rem; line-height: 1.3; color: var(--accent-light); background: rgba(0,0,0,0.2); padding: 8px; border-radius: var(--radius-sm); overflow-x: auto; margin: 0; }

.sb-hidden { display: none !important; }

/* Viewport */
#viewport { flex: 1; position: relative; display: flex; flex-direction: column; }
#viewer { flex: 1; cursor: grab; }
#viewer:active { cursor: grabbing; }
#viewer-controls {
  position: absolute; bottom: 16px; left: 50%; transform: translateX(-50%);
  display: flex; gap: 8px; align-items: center;
  background: rgba(30, 41, 59, 0.9); backdrop-filter: blur(10px);
  padding: 8px 16px; border-radius: var(--radius); border: 1px solid var(--border);
}
#viewer-controls button {
  padding: 6px 12px; background: var(--card-bg);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  color: var(--text); font-family: inherit; font-size: 0.78rem;
  cursor: pointer; transition: all 0.15s ease;
}
#viewer-controls button:hover { border-color: var(--accent); }
.checkbox-label { display: flex; align-items: center; gap: 4px; font-size: 0.78rem; color: var(--text-dim); cursor: pointer; }
.checkbox-label input[type="checkbox"] { accent-color: var(--accent); }

#sidebar::-webkit-scrollbar { width: 6px; }
#sidebar::-webkit-scrollbar-track { background: transparent; }
#sidebar::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
#sidebar::-webkit-scrollbar-thumb:hover { background: var(--text-dim); }

@media (max-width: 900px) {
  #structure-app { flex-direction: column; }
  #sidebar { width: 100%; min-width: unset; max-height: 50vh; border-right: none; border-bottom: 1px solid var(--border); }
  #viewport { min-height: 50vh; }
}