/* =========================================================================
   FILE: styles.css
   PURPOSE: Shared styles for settings panel UI
   LAST UPDATED: 2025-09-20
   ========================================================================= */

.hidden { display: none; }

.settings-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(0, 0, 0, 0.5);
  z-index: 999;
  backdrop-filter: blur(2px);
  transition: opacity 0.3s ease;
}

.settings-backdrop.hidden {
  display: none;
}

.settings-panel {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 90vw;
  max-width: 400px;
  max-height: 80vh;
  padding: 0;
  background: var(--bw-surface, #f9f9f9);
  border: 1px solid var(--bw-line, #ccc);
  border-radius: 12px;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 1rem;
  z-index: 1000;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
  overflow: hidden;
  transition: all 0.3s ease;
}

.settings-panel.hidden {
  display: none;
}

.settings-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.5rem;
  background: var(--bw-elev, #ffffff);
  border-bottom: 1px solid var(--bw-line, #e5e5e5);
}

.settings-title {
  margin: 0;
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--bw-text, #333);
}

.settings-close-btn {
  background: none;
  border: none;
  font-size: 1.2rem;
  color: var(--bw-text-muted, #666);
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
}

.settings-close-btn:hover {
  background: var(--bw-line, #e5e5e5);
  color: var(--bw-text, #333);
}

.settings-content {
  padding: 1.5rem;
  max-height: calc(80vh - 80px);
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: var(--bw-line, #ccc) transparent;
}

/* Webkit scrollbar styling for better visibility */
.settings-content::-webkit-scrollbar {
  width: 8px;
}

.settings-content::-webkit-scrollbar-track {
  background: transparent;
  border-radius: 4px;
}

.settings-content::-webkit-scrollbar-thumb {
  background: var(--bw-line, #ccc);
  border-radius: 4px;
  transition: background 0.2s ease;
}

.settings-content::-webkit-scrollbar-thumb:hover {
  background: var(--bw-text-muted, #666);
}

.setting-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  gap: 1rem;
}

.setting-item:last-child {
  margin-bottom: 0;
}

.setting-label {
  font-weight: 500;
  color: var(--bw-text, #333);
  flex: 1;
  font-size: 0.95rem;
}

.setting-item input[type="number"],
.setting-item input[type="text"],
.setting-item select {
  padding: 0.5rem;
  font-size: 0.9rem;
  border: 1px solid var(--bw-line, #ccc);
  border-radius: 6px;
  background: var(--bw-bg, white);
  color: var(--bw-text, #333);
  transition: border-color 0.2s ease;
  flex-shrink: 0;
  min-width: 120px;
}

.setting-item input[type="number"]:focus,
.setting-item input[type="text"]:focus,
.setting-item select:focus {
  outline: none;
  border-color: var(--bw-accent, #7c3aed);
  box-shadow: 0 0 0 2px rgba(124, 58, 237, 0.1);
}

.setting-item input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--bw-accent, #7c3aed);
  cursor: pointer;
  flex-shrink: 0;
}

/* Mobile responsive */
@media (max-width: 480px) {
  .settings-panel {
    width: 95vw;
    max-height: 85vh;
  }
  
  .settings-header {
    padding: 0.8rem 1rem;
  }
  
  .settings-title {
    font-size: 1.2rem;
  }
  
  .settings-content {
    padding: 1rem;
  }
  
  .setting-item {
    flex-direction: column;
    align-items: stretch;
    gap: 0.5rem;
  }
  
  .setting-item input[type="number"],
  .setting-item input[type="text"],
  .setting-item select {
    width: 100%;
    min-width: unset;
  }
}