/* ==========================================================================
   Settings Component
   Settings drawer and controls
   ========================================================================== */

.settings-drawer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  max-height: 70vh;
  display: flex;
  flex-direction: column;
  background: var(--surface-glass);
  backdrop-filter: blur(var(--blur-medium));
  -webkit-backdrop-filter: blur(var(--blur-medium));
  border-top: 1px solid var(--color-border);
  z-index: var(--z-drawer);
  padding: var(--space-4);
  padding-bottom: var(--player-height);
  transform: translateY(100%);
  transition: transform var(--duration-slow) var(--ease-in-out),
              visibility 0s var(--duration-slow);
  visibility: hidden;
}

/* Fallback for browsers without backdrop-filter */
@supports not (backdrop-filter: blur(1px)) {
  .settings-drawer {
    background: var(--color-surface);
  }
}

/* Override hidden attribute to allow animation */
.settings-drawer[hidden] {
  display: block !important;
}

.settings-drawer:not([hidden]) {
  transform: translateY(0);
  visibility: visible;
  transition: transform var(--duration-slow) var(--ease-in-out),
              visibility 0s 0s;
}

/* Drag handle indicator (mobile app pattern) */
.settings-drawer__handle {
  width: 36px;
  height: 4px;
  background: var(--color-text-muted);
  border-radius: 2px;
  margin: 0 auto var(--space-3);
  opacity: 0.4;
}

.settings-drawer__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-4);
  width: 100%;
}

.settings-drawer__title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
}

.settings-drawer__close {
  width: var(--touch-target);
  height: var(--touch-target);
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  margin-right: calc(-1 * var(--space-2)); /* Align with edge */
  transition: color var(--duration-fast) var(--ease-out),
              background var(--duration-fast) var(--ease-out);
}

.settings-drawer__close:hover,
.settings-drawer__close:focus-visible {
  color: var(--color-text);
  background: var(--color-surface-elevated);
}

.settings-drawer__close .icon {
  width: 20px;
  height: 20px;
}

.settings-drawer__content {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  width: 100%;
  padding-bottom: calc(var(--space-4) + env(safe-area-inset-bottom, 0));
}

/* ==========================================================================
   Setting Row
   ========================================================================== */

.setting {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
}

.setting__label {
  font-size: var(--text-sm);
  color: var(--color-text);
}

/* ==========================================================================
   Toggle Switch
   ========================================================================== */

.setting__toggle {
  position: relative;
  width: 48px;
  height: 28px;
  appearance: none;
  background: var(--color-border);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease-out);
}

.setting__toggle::after {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 24px;
  height: 24px;
  background: var(--color-text);
  border-radius: 50%;
  transition: transform var(--duration-fast) var(--ease-out);
}

.setting__toggle:checked {
  background: var(--color-accent);
}

.setting__toggle:checked::after {
  transform: translateX(20px);
}

.setting__toggle:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ==========================================================================
   Theme Toggle
   ========================================================================== */

.theme-toggle {
  display: flex;
  gap: var(--space-1);
  background: var(--color-surface-elevated);
  padding: var(--space-1);
  border-radius: var(--radius-md);
}

.theme-toggle__option {
  padding: var(--space-2) var(--space-3);
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  font-size: var(--text-xs);
  font-weight: 500;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out);
}

.theme-toggle__option:hover {
  color: var(--color-text);
}

.theme-toggle__option:has(input:checked) {
  background: var(--color-surface);
  color: var(--color-text);
}

.theme-toggle__option:has(input:focus-visible) {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.setting--fieldset {
  border: none;
  padding: 0;
  padding-top: var(--space-3);
  margin: 0;
  margin-top: var(--space-3);
  border-top: 1px solid var(--color-border);
}

.setting + .setting--fieldset {
  margin-top: var(--space-4);
}

/* ==========================================================================
   Volume Slider
   ========================================================================== */

.setting__slider {
  flex: 1;
  min-width: 80px;
  height: 4px;
  appearance: none;
  background: var(--color-border);
  border-radius: var(--radius-full);
  cursor: pointer;
}

.setting__slider::-webkit-slider-thumb {
  appearance: none;
  width: 16px;
  height: 16px;
  background: var(--color-accent);
  border-radius: 50%;
  cursor: pointer;
  transition: transform var(--duration-fast) var(--ease-out);
}

.setting__slider::-moz-range-thumb {
  width: 16px;
  height: 16px;
  background: var(--color-accent);
  border: none;
  border-radius: 50%;
  cursor: pointer;
}

.setting__slider:hover::-webkit-slider-thumb,
.setting__slider:focus-visible::-webkit-slider-thumb {
  transform: scale(1.2);
}

.setting__slider:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
}

/* ==========================================================================
   Keyboard Shortcuts List
   ========================================================================== */

.shortcuts-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  justify-content: center;
}

.shortcut {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-2);
  min-width: 56px;
  background: var(--color-surface-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.shortcut kbd {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text);
  line-height: 1;
}

.shortcut span {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-align: center;
  line-height: 1.2;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

/* Hide keyboard shortcuts on touch devices (no physical keyboard) */
@media (max-width: 767px) {
  .setting--fieldset:has(.shortcuts-list) {
    display: none;
  }
}

/* Tablet+: constrain content width, more padding */
@media (min-width: 768px) {
  .settings-drawer {
    padding: var(--space-6);
  }

  .settings-drawer__header,
  .settings-drawer__content {
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
  }
}

/* ==========================================================================
   Reduced Motion
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
  .settings-drawer {
    transition: none;
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: var(--color-surface);
  }

  .setting__toggle,
  .setting__toggle::after,
  .theme-toggle__option {
    transition: none;
  }
}