/* ==================== BUTTONS ==================== */

/* Base Button (Windows 11 Standard) */
.fluent-btn,
.primary-btn,
.secondary-btn,
.nav-btn {
  font-family: inherit;
  font-size: var(--font-size-body);
  font-weight: 400;

  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  position: relative;
  min-height: 32px;
  padding: 6px 12px;
  cursor: pointer;
  overflow: hidden;
  transition: all var(--duration-fast) var(--ease-standard);

  background: var(--card-bg);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  color: var(--text-primary);

  &:hover {
    background: var(--card-bg-hover);
    border-color: var(--border-strong);
  }

  &:active:not(:disabled) {
    transform: scale(0.98);

    background: var(--card-bg-pressed);
  }

  &:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    pointer-events: none;
  }
}

#random-btn,
#grid-btn {
  font-size: 0.778rem !important;
}

/* Base Styles for Reusability */
.btn-small {
  font-size: var(--font-size-caption) !important;

  padding: 4px 10px !important;
  min-height: 28px !important;
}

.w-100 {
  width: 100% !important;
}

.btn-group {
  display: flex;
  gap: var(--spacing-xs);
  flex-wrap: wrap;

  &.vertical {
    flex-direction: column;

    & > * {
      width: 100%;
    }

    & .secondary-btn {
      justify-content: flex-start;
      padding-left: var(--spacing-md);
    }
  }

  &.row-fill {
    display: grid !important;
    grid-template-columns: 1fr 1fr;
    width: 100%;

    & > * {
      width: 100%;
    }
  }
}

/* Removed individual hover/active/disabled overrides since they are nested in .fluent-btn etc base now */

/* Toggle Button Active States */
.secondary-btn {
  &.active {
    background: var(--accent-tertiary);
    border-color: var(--accent-default);
    color: var(--accent-default);
  }
}

#mark-btn {
  &.active {
    background: var(--warning-bg);
    border-color: var(--warning-default);
    color: var(--warning-default);
  }
}

#see-explanation-btn {
  &.active {
    background: var(--accent-tertiary);
    border-color: var(--accent-default);
    color: var(--accent-default);
  }
}

/* Primary Button (Accent) */
.primary-btn {
  font-weight: 500;

  position: relative;
  padding: var(--spacing-xs) var(--spacing-md);
  overflow: hidden;

  background: var(--accent-default);
  border: 1px solid transparent;
  color: var(--text-on-accent);

  &::before {
    display: none;
  }

  &:hover {
    background: var(--accent-hover);
    box-shadow: 0 0 16px var(--accent-glow);
  }

  &:active {
    transform: scale(0.98);

    background: var(--accent-pressed);
  }

  &:disabled {
    background: var(--card-bg);
    color: var(--text-disabled);
    border: 1px solid var(--border-subtle);
    box-shadow: none;
  }

  /* Primary Button Shimmer */
  /* Only shimmer when active/enabled */
  &:not(:disabled):not(.disabled)::after {
    content: "";

    position: absolute;
    top: 0;
    left: -100%;
    width: 50%;
    height: 100%;
    transform: skewX(-20deg);
    animation: sheen 3s infinite;

    background: linear-gradient(
      90deg,
      transparent,
      rgba(255, 255, 255, 0.2),
      transparent
    );
  }
}

@keyframes sheen {
  0%,
  60% {
    left: -100%;
  }
  100% {
    left: 200%;
  }
}

/* Cleaned up duplicate disabled logic */

/* Icon Button */
.icon-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  padding: 0;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--duration-fast) var(--ease-standard);

  background: transparent;
  border: none;
  color: var(--text-secondary);

  &:hover {
    background: var(--card-bg-hover);
    color: var(--text-primary);
  }

  &:active {
    transform: scale(0.92);

    background: var(--card-bg-pressed);
  }
}

/* ==================== SEGMENTED CONTROL ==================== */
.segmented-control {
  user-select: none;

  display: flex;
  position: relative;
  width: 100%;
  padding: 3px;
  margin-top: var(--spacing-xs);
  gap: var(--seg-gap);
  overflow: hidden;
  --seg-gap: 4px;

  background: var(--bg-solid-base);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.05);
}

.segment {
  font-family: inherit;
  font-size: var(--font-size-caption);
  font-weight: 500;

  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 7px 12px;
  position: relative;
  z-index: 1;
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-standard);

  background: transparent;
  border: none;
  border-radius: calc(var(--radius-md) - 2px);
  color: var(--text-secondary);

  & i {
    font-size: 1.1rem;

    transition: transform var(--duration-fast);
  }

  &:hover {
    background: var(--card-bg-hover);
    color: var(--text-primary);

    & i {
      transform: translateY(-1px);
    }
  }

  &.active {
    color: var(--text-primary);
  }

  &:active {
    transform: scale(0.97);
  }
}

/* Indicator for active segment */
.segment-indicator {
  position: absolute;
  top: 3px;
  bottom: 3px;
  left: 3px;
  z-index: 0;
  transition: transform var(--duration-normal) var(--ease-standard);

  background: var(--card-bg-elevated);
  border: 1px solid var(--stroke-card-top);
  border-radius: calc(var(--radius-md) - 2px);
  box-shadow:
    0 2px 5px rgba(0, 0, 0, 0.1),
    0 0 1px rgba(0, 0, 0, 0.1);
}

.theme-segmented-control .segment-indicator {
  width: calc(33.33% - 4.66px);
}

.visual-segmented-control .segment-indicator {
  width: calc(50% - 5px);
}

/* ==================== STATS COMPONENTS ==================== */
.stats-card {
  padding: var(--spacing-lg);
  margin: var(--spacing-sm);

  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-top: 1px solid var(--stroke-card-top);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);

  .sidebar.collapsed & {
    display: none;
  }
}

.stat-group {
  margin-bottom: var(--spacing-md);

  &:last-child {
    margin-bottom: 0;
  }
}

.stat-header {
  font-size: var(--font-size-caption);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.5px;

  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-xs);

  color: var(--text-tertiary);
}

.stat-value {
  font-weight: 600;

  color: var(--text-primary);
}

/* Progress Bar */
.progress-bar-container {
  height: 4px;
  overflow: hidden;

  background: var(--border-subtle);
  border-radius: var(--radius-pill);
}

.progress-bar {
  height: 100%;
  transition: width var(--duration-slow) var(--ease-decelerate);

  background: linear-gradient(
    90deg,
    var(--accent-default),
    var(--accent-hover)
  );
  border-radius: var(--radius-pill);
}

/* Pie Chart */
.pie-container {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);

  & .pie-chart {
    width: 52px;
    height: 52px;
    position: relative;
    flex-shrink: 0;

    background: conic-gradient(
      var(--success-default) 0%,
      var(--error-default) 0%
    );
    border-radius: var(--radius-circular);
    box-shadow: var(--shadow-sm);
  }

  & .pie-inner {
    font-size: var(--font-size-caption);
    font-weight: 600;

    position: absolute;
    inset: 6px;
    display: flex;
    align-items: center;
    justify-content: center;

    background: var(--bg-solid-base);
    border-radius: var(--radius-circular);
    color: var(--text-primary);
  }

  & .pie-legend {
    display: flex;
    flex-direction: column;
    gap: 6px;
  }
}

.legend-item {
  font-size: 0.722rem;

  display: flex;
  align-items: center;
  gap: 8px;

  color: var(--text-secondary);

  & .dot {
    width: 8px;
    height: 8px;

    border-radius: var(--radius-circular);

    &.correct {
      background: var(--success-default);
    }

    &.incorrect {
      background: var(--error-default);
    }
  }
}

/* ==================== MOBILE STATS BAR ==================== */
.stats-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-xl);
  padding: var(--spacing-sm) var(--spacing-lg);
  max-width: 900px;
  width: 100%;
  margin: 0 auto var(--spacing-xl) auto;

  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-top: 1px solid var(--stroke-card-top);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(var(--acrylic-blur));
  box-shadow: var(--shadow-sm);

  &.hidden {
    display: none !important;
  }

  & .stat-row {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    width: 100%;

    &.compact-row {
      justify-content: space-between;
    }
  }

  & .stat-group-mobile {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
  }

  & .stat-label-inline {
    font-size: var(--font-size-caption);
    text-transform: uppercase;
    letter-spacing: 0.3px;

    color: var(--text-tertiary);
  }
}

.accuracy-bar-container {
  display: flex;
  flex: 1;
  position: relative;
  height: 6px;
  overflow: visible;

  background: var(--border-subtle);
  border-radius: var(--radius-pill);

  & .accuracy-bar-inner {
    display: flex;
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    transition: width var(--duration-slow) var(--ease-decelerate);

    border-radius: var(--radius-pill);
  }
}

.acc-bar-segment {
  height: 100%;
  transition: width var(--duration-slow) var(--ease-decelerate);

  &.correct {
    background: var(--success-default);

    &.winning {
      z-index: 2;

      box-shadow: 0 0 10px var(--success-default);
    }
  }

  &.incorrect {
    background: var(--error-default);

    &.winning {
      z-index: 2;

      box-shadow: 0 0 10px var(--error-default);
    }
  }
}

/* Progress outline - shows completion progress as the bar's border */
.progress-outline {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
  transition: clip-path var(--duration-slow) var(--ease-decelerate);

  &::after {
    content: "";
    position: absolute;
    inset: -3px;

    border: 2px solid rgba(255, 255, 255, 0.85);
    border-radius: var(--radius-pill);
  }

  [data-theme="light"] & {
    &::after {
      border-color: rgba(0, 0, 0, 0.6);
    }
  }
}

.count-item {
  font-weight: 600;
  font-size: var(--font-size-body);

  display: flex;
  align-items: center;
  gap: var(--spacing-2xs);

  &.correct {
    color: var(--success-default);
  }

  &.incorrect {
    color: var(--error-default);
  }
}

/* ==================== STREAK COUNTER ==================== */
.streak-counter {
  font-weight: 600;

  padding: 2px var(--spacing-xs);
  transition: all var(--duration-normal) var(--ease-standard);

  border-radius: var(--radius-md);

  &.streak-warm {
    color: #e63946;
    text-shadow: 0 0 8px rgba(230, 57, 70, 0.5);
  }

  &.streak-hot {
    background: linear-gradient(
      135deg,
      rgba(255, 123, 0, 0.15),
      rgba(230, 57, 70, 0.1)
    );
    color: #ff7b00;
    text-shadow: 0 0 12px rgba(255, 123, 0, 0.6);
  }

  &.streak-blazing {
    background: linear-gradient(135deg, #ffbe0b, #ff9500);
    color: #1a1a1a;
    text-shadow: 0 0 10px rgba(255, 190, 11, 0.6);
  }

  &.streak-inferno {
    font-weight: 700;

    background: linear-gradient(135deg, #fff8e7, #ffe066, #ffbe0b);
    background-size: 200% 200%;
    color: #1a1a1a;
    text-shadow: 0 0 8px rgba(255, 255, 255, 0.9);
  }

  &.streak-plasma {
    font-weight: 800;

    background: linear-gradient(135deg, #e0faff, #4cc9f0, #4361ee);
    background-size: 200% 200%;
    border: 1px solid rgba(255, 255, 255, 0.8);
    color: #003049;
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.8);
  }
}

.streak-animate {
  animation: streak-pulse-once 0.6s ease-out forwards;
}

@keyframes streak-pulse-once {
  0% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(255, 165, 0, 0.7);
  }
  50% {
    transform: scale(1.15);
    box-shadow: 0 0 20px 10px rgba(255, 165, 0, 0);
  }
  100% {
    transform: scale(1);
    box-shadow: 0 0 0 0 rgba(255, 165, 0, 0);
  }
}

/* ==================== ADDITIONAL COMPONENT STYLES ==================== */
.accuracy-bar-wrapper {
  position: relative;
  flex: 1;
  height: 8px;
}

.count-item-wrapper {
  font-size: 12px;
  font-weight: 600;

  flex-shrink: 0;
}

#grid-btn {
  &.active {
    background: var(--accent-tertiary) !important;
    border-color: var(--accent-default) !important;
    color: var(--accent-default) !important;

    & i {
      color: var(--accent-default) !important;
    }
  }
}

/* Range/Slider Refinement */
.range-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);

  & .slider-container {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
  }
}

.slider-input {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  height: 6px;
  outline: none;
  cursor: pointer;

  background: var(--bg-solid-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-pill);

  &::-webkit-slider-thumb {
    appearance: none;
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    cursor: pointer;
    transition: transform 0.1s var(--ease-standard);

    background: var(--accent-default);
    border: 4px solid var(--bg-solid-base);
    border-radius: 50%;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);

    &:active {
      transform: scale(1.15);
    }
  }

  &::-moz-range-thumb {
    width: 20px;
    height: 20px;
    cursor: pointer;

    background: var(--accent-default);
    border: 4px solid var(--bg-solid-base);
    border-radius: 50%;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  }
}

.shortcuts-embedded {
  padding: 1rem;

  background: rgba(0, 0, 0, 0.2);
  border-radius: var(--radius-md);
}

/* ==================== TOGGLES (Fluent Style) ==================== */
.switch {
  position: relative;
  display: inline-block;
  width: 36px;
  height: 20px;
  flex-shrink: 0;

  & input {
    width: 0;
    height: 0;
    opacity: 0;

    &:checked + .slider-toggle {
      background-color: var(--accent-default);

      &:before {
        transform: translateX(16px);
      }
    }
  }
}

.slider-toggle {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  cursor: pointer;
  transition: 0.3s var(--ease-standard);

  background-color: var(--border-strong);
  border-radius: 20px;

  &::before {
    content: "";
    position: absolute;
    height: 14px;
    width: 14px;
    left: 3px;
    bottom: 3px;
    transition: 0.3s var(--ease-standard);

    background-color: var(--bg-solid-base);
    border-radius: 50%;

    [data-theme="light"] & {
      background-color: #fff;
    }
  }
}

/* ==================== RANGE SLIDERS ==================== */
input[type="range"] {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  height: 4px;
  margin: 10px 0;
  outline: none;

  background: var(--border-strong);
  border-radius: var(--radius-pill);
}

input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  cursor: pointer;
  transition: all var(--duration-fast);

  background: var(--accent-default);
  border: 4px solid var(--bg-solid-base);
  border-radius: 50%;
  box-shadow: var(--shadow-sm);
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.1);

  background: var(--accent-hover);
}

/* ==================== OPTION MARKERS ==================== */
.option-marker,
.option-letter {
  font-weight: 600;
  font-size: 18px;

  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  transition: all var(--duration-normal) var(--ease-standard);

  background: var(--card-bg-hover);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
}

.option-card.selected .option-marker,
.option-card.selected .option-letter {
  background: var(--accent-default);
  color: var(--text-on-accent);
  box-shadow: 0 2px 8px var(--accent-glow);
}

.option-card.correct .option-marker,
.option-card.correct .option-letter {
  background: var(--success-default);
  color: var(--text-on-accent);
}

.option-card.incorrect .option-marker,
.option-card.incorrect .option-letter {
  background: var(--error-default);
  color: #fff;
}
/* ==================== BACKGROUND SETTINGS ==================== */
.bg-toggle-card {
  margin-bottom: var(--spacing-sm);
  border: 1px solid var(--border-subtle);
  background: var(--card-bg);
}

.bg-filters-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  margin-top: var(--spacing-sm);

  background: rgba(0, 0, 0, 0.1);
  border-radius: var(--radius-md);

  [data-theme="light"] & {
    background: rgba(0, 0, 0, 0.03);
  }
}

.bg-filter-row {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.bg-filter-label {
  font-size: var(--font-size-caption);
  font-weight: 500;

  display: flex;
  justify-content: space-between;
  align-items: center;

  color: var(--text-secondary);
}

.bg-filter-value {
  color: var(--accent-default);
}

/* ==================== TOAST NOTIFICATIONS ==================== */
.toast {
  pointer-events: none;
  z-index: 10000;
  position: fixed;
  top: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(-20px);
  opacity: 0;
  min-width: 280px;
  max-width: 90vw;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 12px;

  background: var(--modal-bg);
  backdrop-filter: blur(var(--acrylic-blur));
  -webkit-backdrop-filter: blur(var(--acrylic-blur));
  border: 1px solid var(--border-subtle);
  border-top: 1px solid var(--stroke-card-top);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  color: var(--text-primary);
  transition: all 0.3s var(--ease-decelerate);
}

.toast-content {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
}

.toast-icon {
  font-size: 1.25rem;
  flex-shrink: 0;
}

.toast-message {
  font-size: var(--font-size-body);
  font-weight: 500;
}

/* Toast Variants */
.toast-success .toast-icon {
  color: var(--success-default);
}
.toast-error .toast-icon {
  color: var(--error-default);
}
.toast-info .toast-icon {
  color: var(--accent-default);
}
.toast-warning .toast-icon {
  color: var(--warning-default);
}

@keyframes toastSlideDown {
  from {
    transform: translateX(-50%) translateY(-20px);
    opacity: 0;
  }
  to {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
  }
}

@keyframes toastSlideUp {
  from {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
  }
  to {
    transform: translateX(-50%) translateY(-20px);
    opacity: 0;
  }
}