/* Segmented control */
.seg-control {
  display: flex;
  border: 1px solid var(--border);
  border-radius: 6px;
  overflow: hidden;
  background: transparent;
}
.seg-btn {
  flex: 1;
  padding: 5px 10px;
  font-size: 13px;
  font-family: inherit;
  cursor: pointer;
  background: transparent;
  border: none;
  color: var(--text-1);
  transition: background 0.12s, color 0.12s;
  white-space: nowrap;
}
.seg-btn:not(:last-child) { border-right: 1px solid var(--border); }
.seg-btn:hover:not(.active) { background: var(--bg-3); color: var(--text-0); }
.seg-btn.active-view { background: var(--accent); color: #fff; }
.seg-btn.active-measure { background: var(--accent-2); color: #fff; }
.seg-btn.active { background: var(--accent); color: #fff; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 6px 12px;
  font-size: 13px;
  font-family: inherit;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: var(--bg-2);
  color: var(--text-0);
  cursor: pointer;
  transition: background 0.12s, border-color 0.12s, color 0.12s;
  white-space: nowrap;
  user-select: none;
}
.btn:hover { background: var(--bg-3); border-color: var(--text-2); }
.btn:active { background: var(--bg-0); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-full { width: 100%; margin-bottom: 4px; }
.btn-accent { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-accent:hover { background: color-mix(in srgb, var(--accent) 85%, #fff); }
.btn-danger { background: color-mix(in srgb, var(--danger) 15%, var(--bg-2)); border-color: var(--danger); color: var(--danger); }
.btn-danger:hover { background: color-mix(in srgb, var(--danger) 25%, var(--bg-2)); }
.btn-sm { padding: 3px 8px; font-size: 12px; }
.btn-icon { padding: 4px 6px; font-size: 15px; line-height: 1; }

/* Tool selector */
.tool-selector {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
}
.tool-btn {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 6px 10px;
  border-radius: 4px;
  border: 1px solid transparent;
  background: transparent;
  color: var(--text-1);
  cursor: pointer;
  font-size: 13px;
  font-family: inherit;
  transition: background 0.12s, color 0.12s, border-color 0.12s;
  text-align: left;
}
.tool-btn:hover { background: var(--bg-2); color: var(--text-0); }
.tool-btn.active { background: color-mix(in srgb, var(--accent) 12%, var(--bg-2)); border-color: var(--accent); color: var(--text-0); }
.tool-btn.measure-only { opacity: 1; }
.tool-btn .tool-shortcut {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-2);
  background: var(--bg-3);
  padding: 1px 5px;
  border-radius: 3px;
}

/* Active measurement card */
.active-meas-card {
  margin: 8px 12px;
  padding: 10px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 12px;
}
.active-meas-card-title { font-weight: 600; color: var(--text-0); margin-bottom: 6px; }
.active-meas-card-info { color: var(--text-1); margin-bottom: 8px; }
.active-meas-card-actions { display: flex; gap: 4px; flex-wrap: wrap; }

/* Measurement list */
.meas-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: 0 0 8px 0;
}
.meas-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
  transition: background 0.1s;
  cursor: default;
}
.meas-item:hover { background: var(--bg-2); }

.meas-color-swatch {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
  margin-top: 4px;
}
.meas-item-body { flex: 1; min-width: 0; }
.meas-item-top { display: flex; align-items: center; gap: 6px; margin-bottom: 2px; }
.meas-label-input {
  background: none;
  border: none;
  border-bottom: 1px solid transparent;
  color: var(--text-0);
  font-size: 13px;
  font-family: inherit;
  padding: 0 1px;
  min-width: 0;
  flex: 1;
  transition: border-color 0.1s;
}
.meas-label-input:focus { outline: none; border-bottom-color: var(--accent); }
.meas-type-tag {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-2);
  background: var(--bg-3);
  padding: 1px 5px;
  border-radius: 3px;
  flex-shrink: 0;
}
.meas-value {
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 500;
  color: var(--text-0);
}
.meas-sub { font-size: 11px; color: var(--text-2); margin-top: 2px; }
.meas-tooth-pill {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-size: 10px;
  background: color-mix(in srgb, var(--accent) 12%, var(--bg-3));
  color: var(--accent);
  border-radius: 10px;
  padding: 1px 6px;
}
.meas-item-actions {
  display: flex;
  align-items: center;
  gap: 2px;
  flex-shrink: 0;
}
.meas-action-btn {
  background: none;
  border: none;
  color: var(--text-2);
  cursor: pointer;
  padding: 3px 5px;
  border-radius: 3px;
  font-size: 13px;
  transition: background 0.1s, color 0.1s;
}
.meas-action-btn:hover { background: var(--bg-3); color: var(--text-0); }
.meas-item.hidden-meas { opacity: 0.45; }

/* Zoom widget */
#zoom-widget {
  position: absolute;
  bottom: 12px;
  right: 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  z-index: 5;
}
.zoom-btn {
  width: 32px;
  height: 32px;
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-1);
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.1s, color 0.1s;
  user-select: none;
}
.zoom-btn:hover { background: var(--bg-3); color: var(--text-0); }

/* Toast */
#toast-container {
  position: fixed;
  bottom: 44px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column-reverse;
  gap: 6px;
  z-index: 1000;
  pointer-events: none;
  align-items: center;
}
.toast {
  padding: 8px 14px;
  border-radius: 6px;
  background: color-mix(in srgb, var(--bg-2) 95%, transparent);
  border-left: 3px solid var(--accent);
  font-size: 13px;
  color: var(--text-0);
  max-width: 380px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.5);
  opacity: 1;
  transition: opacity 0.3s;
  pointer-events: auto;
}
.toast.toast-ok { border-left-color: var(--ok); }
.toast.toast-warn { border-left-color: var(--warn); }
.toast.toast-danger { border-left-color: var(--danger); }
.toast.toast-fade { opacity: 0; }

/* Modal */
#modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.65);
  z-index: 500;
  display: none;
  align-items: center;
  justify-content: center;
}
#modal-overlay.active { display: flex; }
.modal {
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.6);
  max-width: 90vw;
  max-height: 90vh;
  overflow: auto;
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px 10px;
  border-bottom: 1px solid var(--border);
}
.modal-title { font-size: 14px; font-weight: 600; }
.modal-close {
  background: none;
  border: none;
  color: var(--text-2);
  cursor: pointer;
  font-size: 18px;
  padding: 2px 6px;
  border-radius: 3px;
}
.modal-close:hover { color: var(--text-0); background: var(--bg-3); }
.modal-body { padding: 16px; }
.modal-footer {
  padding: 10px 16px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: flex-end;
  gap: 8px;
}

/* Help popover */
.help-popover {
  position: absolute;
  top: 52px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-1);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
  min-width: 280px;
  max-width: 360px;
  z-index: 200;
  box-shadow: 0 8px 24px rgba(0,0,0,0.5);
  display: none;
}
.help-popover.visible { display: block; }
.help-popover-title { font-weight: 600; margin-bottom: 10px; color: var(--text-0); }
.help-row { display: flex; justify-content: space-between; gap: 12px; padding: 3px 0; font-size: 12px; }
.help-key {
  font-family: var(--mono);
  font-size: 11px;
  background: var(--bg-3);
  padding: 1px 6px;
  border-radius: 3px;
  white-space: nowrap;
  color: var(--text-0);
}
.help-desc { color: var(--text-1); }
.help-section { font-size: 11px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-2); margin: 8px 0 4px; }

/* Bolton table */
.bolton-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 12px;
}
.bolton-table th {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-2);
  font-weight: 500;
  padding: 4px 6px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.bolton-table td {
  padding: 3px 6px;
  border-bottom: 1px solid color-mix(in srgb, var(--border) 50%, transparent);
  vertical-align: middle;
}
.bolton-table tr:last-child td { border-bottom: none; }
.bolton-table tr:hover td { background: var(--bg-2); }

.tooth-status-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  display: inline-block;
}
.tooth-width-input {
  width: 60px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--text-0);
  font-family: var(--mono);
  font-size: 12px;
  padding: 2px 5px;
  text-align: right;
}
.tooth-width-input:focus { outline: none; border-color: var(--accent); }
.tooth-width-input.missing { text-decoration: line-through; color: var(--text-2); }

/* Bolton results card */
.results-card {
  margin: 10px 12px;
  padding: 10px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 6px;
}
.results-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 0;
  font-size: 12px;
  border-bottom: 1px solid color-mix(in srgb, var(--border) 50%, transparent);
}
.results-row:last-child { border-bottom: none; }
.results-label { color: var(--text-1); }
.results-value { font-family: var(--mono); font-weight: 500; color: var(--text-0); }
.range-pill {
  font-size: 10px;
  padding: 1px 7px;
  border-radius: 10px;
  font-weight: 500;
}
.range-pill.ok { background: color-mix(in srgb, var(--ok) 15%, transparent); color: var(--ok); }
.range-pill.warn { background: color-mix(in srgb, var(--warn) 15%, transparent); color: var(--warn); }
.range-pill.danger { background: color-mix(in srgb, var(--danger) 15%, transparent); color: var(--danger); }

/* ALD */
.ald-discrepancy-card {
  margin: 8px 12px;
  padding: 10px;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 12px;
}
.ald-disc-row { display: flex; justify-content: space-between; padding: 3px 0; }
.ald-disc-val { font-family: var(--mono); font-weight: 500; }
.severity-pill {
  display: inline-block;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 10px;
  font-weight: 500;
}
.severity-mild { background: color-mix(in srgb, var(--ok) 15%, transparent); color: var(--ok); }
.severity-moderate { background: color-mix(in srgb, var(--warn) 15%, transparent); color: var(--warn); }
.severity-severe { background: color-mix(in srgb, var(--danger) 15%, transparent); color: var(--danger); }

/* Tooth strip */
.tooth-strip {
  display: flex;
  gap: 3px;
  flex-wrap: wrap;
  padding: 6px 12px;
}
.tooth-strip-item {
  font-family: var(--mono);
  font-size: 10px;
  padding: 2px 4px;
  border-radius: 3px;
  background: var(--bg-3);
  color: var(--text-2);
}
.tooth-strip-item.measured { background: color-mix(in srgb, var(--ok) 15%, transparent); color: var(--ok); }
.tooth-strip-item.missing { background: color-mix(in srgb, var(--danger) 10%, transparent); color: var(--danger); text-decoration: line-through; }

/* Radio group */
.radio-group { display: flex; flex-direction: column; gap: 4px; padding: 0; }
.radio-label {
  display: flex;
  align-items: center;
  gap: 7px;
  cursor: pointer;
  font-size: 12px;
  color: var(--text-1);
}
.radio-label input[type="radio"] {
  appearance: none;
  width: 14px; height: 14px;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--bg-2);
  cursor: pointer;
  position: relative;
  flex-shrink: 0;
  transition: border-color 0.1s;
}
.radio-label input[type="radio"]:checked { border-color: var(--accent); }
.radio-label input[type="radio"]:checked::after {
  content: '';
  position: absolute;
  top: 3px; left: 3px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

/* Select dropdown */
select.ald-select {
  width: 100%;
  background: var(--bg-2);
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-0);
  font-size: 12px;
  font-family: inherit;
  padding: 5px 8px;
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%236b7683'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 8px center;
  padding-right: 24px;
}
select.ald-select:focus { outline: none; border-color: var(--accent); }