/* ============================================================
   PhotoAI.cloud — Advanced Options Side Panel
   Append este contenido al final de main.css
   ============================================================ */

/* ── Trigger button ─────────────────────────────────────────── */
.advanced-trigger {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
  width: 100%;
  padding: 10px 16px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--muted);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-base);
  justify-content: space-between;
}
.advanced-trigger:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.advanced-trigger__icon {
  width: 16px; height: 16px;
  transition: transform var(--transition-spring);
}
.advanced-trigger.open .advanced-trigger__icon {
  transform: rotate(180deg);
}
.advanced-trigger__label {
  display: flex; align-items: center; gap: 8px;
}

/* ── Overlay ─────────────────────────────────────────────────── */
.advanced-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  backdrop-filter: blur(4px);
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}
.advanced-overlay.open {
  opacity: 1;
  pointer-events: all;
}

/* ── Panel ───────────────────────────────────────────────────── */
.advanced-panel {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: 340px;
  max-width: 92vw;
  background: var(--surface);
  border-left: 1px solid var(--border);
  z-index: 201;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--transition-spring);
  overflow: hidden;
}
.advanced-panel.open {
  transform: translateX(0);
}

/* Panel header */
.advanced-panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.advanced-panel__title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: 700;
  color: var(--text);
}
.advanced-panel__close {
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  background: var(--elevated);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.advanced-panel__close:hover { color: var(--text); border-color: var(--text); }

/* Panel body */
.advanced-panel__body {
  flex: 1;
  overflow-y: auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.advanced-panel__body::-webkit-scrollbar { width: 4px; }
.advanced-panel__body::-webkit-scrollbar-track { background: transparent; }
.advanced-panel__body::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

/* Panel footer */
.advanced-panel__footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}

/* ── Option groups ───────────────────────────────────────────── */
.opt-group {}
.opt-group__label {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 12px;
  display: block;
}

/* Mask toggle (3 buttons) */
.mask-toggle {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}
.mask-btn {
  padding: 8px 6px;
  background: var(--elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-align: center;
  line-height: 1.4;
}
.mask-btn:hover { border-color: var(--primary); color: var(--primary); }
.mask-btn.active {
  background: rgba(0,212,255,0.1);
  border-color: var(--primary);
  color: var(--primary);
}

/* Sliders */
.slider-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}
.slider-row__ends {
  font-size: var(--text-xs);
  color: var(--muted);
}
.slider-value {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--primary);
  min-width: 36px;
  text-align: right;
}
.opt-slider {
  width: 100%;
  -webkit-appearance: none;
  appearance: none;
  height: 4px;
  border-radius: 2px;
  background: var(--elevated);
  outline: none;
  cursor: pointer;
  accent-color: var(--primary);
}
.opt-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
  border: 2px solid var(--bg);
  box-shadow: 0 0 8px rgba(0,212,255,0.4);
}
.opt-slider::-moz-range-thumb {
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--primary);
  cursor: pointer;
  border: 2px solid var(--bg);
}
.opt-hint {
  font-size: var(--text-xs);
  color: var(--muted);
  line-height: 1.55;
  margin-top: 8px;
}

/* Snap toggle */
.snap-toggle {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
}
.snap-toggle__switch {
  position: relative;
  width: 40px; height: 22px;
  flex-shrink: 0;
  margin-top: 1px;
}
.snap-toggle__switch input { opacity: 0; width: 0; height: 0; }
.snap-toggle__track {
  position: absolute; inset: 0;
  background: var(--elevated);
  border: 1px solid var(--border);
  border-radius: 11px;
  transition: all var(--transition-base);
  cursor: pointer;
}
.snap-toggle__track::after {
  content: '';
  position: absolute;
  top: 2px; left: 2px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--muted);
  transition: all var(--transition-spring);
}
.snap-toggle__switch input:checked + .snap-toggle__track {
  background: rgba(0,212,255,0.15);
  border-color: var(--primary);
}
.snap-toggle__switch input:checked + .snap-toggle__track::after {
  transform: translateX(18px);
  background: var(--primary);
}
.snap-toggle__text {}
.snap-toggle__title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text);
  margin-bottom: 3px;
}
.snap-toggle__hint { font-size: var(--text-xs); color: var(--muted); line-height: 1.55; }

/* Region input */
.region-input {
  width: 100%;
  padding: 10px 14px;
  background: var(--elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  outline: none;
  transition: border-color var(--transition-fast);
}
.region-input::placeholder { color: var(--muted); }
.region-input:focus { border-color: var(--primary); }

/* Reset button */
.btn--reset {
  width: 100%;
  padding: 10px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--muted);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.btn--reset:hover { border-color: var(--error); color: var(--error); }

/* ── Active indicator on trigger ────────────────────────────── */
.advanced-trigger.has-custom::after {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--primary);
  margin-left: auto;
}

/* ── Mobile ──────────────────────────────────────────────────── */
@media (max-width: 600px) {
  .advanced-panel { width: 100%; max-width: 100%; }
}