.breathing-overlay {
  position: fixed; inset: 0; z-index: 90;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  background: rgba(6, 5, 10, .88);
  opacity: 0; visibility: hidden;
  transition: all .8s ease;
  pointer-events: none;
}
.breathing-overlay.on {
  opacity: 1; visibility: visible; pointer-events: auto;
}
.breath-ring {
  width: 180px; height: 180px;
  border-radius: 50%;
  border: 1px solid rgba(201, 169, 82, .2);
  display: flex; align-items: center; justify-content: center;
  animation: breathAnim 16s linear infinite;
  position: relative;
}
.breath-ring::before {
  content: '';
  position: absolute; inset: 8px;
  border-radius: 50%;
  border: 1px solid rgba(201, 169, 82, .1);
}
.breath-ring::after {
  content: '';
  position: absolute; inset: 20px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201, 169, 82, .06), transparent 70%);
}
.breath-text {
  font-family: var(--font-display);
  font-size: 1.4rem; color: var(--gold);
  letter-spacing: .4em;
  z-index: 1;
}
/* Note: breathAnim keyframes are dynamically generated in breathing.js */
.breath-close {
  position: absolute; top: 32px; right: 32px;
  background: none; border: 1px solid rgba(201, 169, 82, .15);
  color: var(--text-sec); font-family: var(--font-body);
  font-size: .75rem; padding: 6px 16px;
  border-radius: 4px; cursor: pointer;
  transition: all var(--ease);
}
.breath-close:hover {
  border-color: var(--border-hover);
  color: var(--text);
}

/* ===== Breath Config Modal ===== */
.modal-overlay {
  position: fixed; inset: 0; z-index: 9999;
  background: rgba(6, 5, 10, .85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden;
  transition: all .3s ease;
}
.modal-overlay.on {
  opacity: 1; visibility: visible;
}
.modal-content {
  background: rgba(18, 16, 24, .95);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
  min-width: 320px;
  max-width: 90vw;
  box-shadow: 0 8px 32px rgba(0, 0, 0, .4);
}
.modal-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--gold);
  letter-spacing: .2em;
  margin-bottom: 24px;
  text-align: center;
}
.modal-body {
  display: flex; flex-direction: column;
  gap: 16px; margin-bottom: 24px;
}
.config-row {
  display: flex; align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.config-row label {
  font-size: .85rem;
  color: var(--text-sec);
  font-weight: 300;
  letter-spacing: .1em;
  min-width: 80px;
}
.config-row input[type="number"] {
  flex: 1;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 12px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: .9rem;
  outline: none;
  transition: all var(--ease);
}
.config-row input[type="number"]:focus {
  border-color: var(--border-active);
  box-shadow: 0 0 12px var(--glow);
}
.modal-footer {
  display: flex; gap: 12px;
  justify-content: flex-end;
}
.modal-btn {
  padding: 8px 24px;
  border-radius: 6px;
  font-family: var(--font-body);
  font-size: .8rem;
  font-weight: 300;
  cursor: pointer;
  transition: all var(--ease);
  letter-spacing: .1em;
}
.modal-btn-cancel {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
}
.modal-btn-cancel:hover {
  border-color: var(--border-hover);
  color: var(--text-sec);
}
.modal-btn-confirm {
  background: rgba(201, 169, 82, .1);
  border: 1px solid var(--gold-dim);
  color: var(--gold);
}
.modal-btn-confirm:hover {
  background: rgba(201, 169, 82, .2);
  border-color: var(--gold);
}