/* Buttons */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 12px 24px;
  border: var(--border-glow);
  border-radius: var(--border-radius-md);
  background: var(--bg-surface);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  overflow: hidden;
  white-space: nowrap;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.08), transparent);
  transition: left 0.5s;
}

.btn:hover::before {
  left: 100%;
}

.btn:hover {
  border-color: var(--accent-cyan);
  box-shadow: var(--glow-cyan);
  transform: translateY(-2px);
}

.btn:active {
  transform: translateY(0) scale(0.97);
}

.btn-lg {
  width: 100%;
  padding: 16px 32px;
  font-size: 1rem;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 0.75rem;
}

.btn-primary {
  background: linear-gradient(135deg, rgba(79, 195, 247, 0.2), rgba(0, 230, 118, 0.15));
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

.btn-primary:hover {
  background: linear-gradient(135deg, rgba(79, 195, 247, 0.3), rgba(0, 230, 118, 0.25));
  box-shadow: var(--glow-cyan);
}

.btn-daily {
  background: linear-gradient(135deg, rgba(255, 171, 0, 0.15), rgba(255, 111, 0, 0.15));
  border-color: var(--accent-amber);
  color: var(--accent-amber);
}

.btn-daily:hover {
  box-shadow: var(--glow-orange);
}

.btn-danger {
  border-color: var(--accent-red);
  color: var(--accent-red);
}

.btn-danger:hover {
  box-shadow: 0 0 20px rgba(255, 23, 68, 0.5);
}

.btn-icon {
  font-size: 1.1em;
}

.btn-preset {
  padding: 10px 16px;
  font-size: 0.75rem;
  flex: 1;
}

.btn-preset.preset-active {
  border-color: var(--accent-cyan);
  background: rgba(79, 195, 247, 0.15);
  box-shadow: 0 0 10px rgba(79, 195, 247, 0.3);
}

/* Slider */
.slider-container {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  width: 100%;
  padding: 0 var(--spacing-sm);
}

.slider-label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  min-width: 2.5em;
  text-align: center;
}

.prediction-slider {
  -webkit-appearance: none;
  appearance: none;
  flex: 1;
  height: 8px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--accent-green), var(--accent-amber), var(--accent-red));
  outline: none;
  cursor: pointer;
}

.prediction-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: radial-gradient(circle, #fff 30%, var(--accent-cyan) 100%);
  box-shadow: var(--glow-cyan);
  cursor: grab;
  transition: transform 0.2s;
}

.prediction-slider::-webkit-slider-thumb:active {
  transform: scale(1.2);
  cursor: grabbing;
}

.prediction-slider::-moz-range-thumb {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: none;
  background: radial-gradient(circle, #fff 30%, var(--accent-cyan) 100%);
  box-shadow: var(--glow-cyan);
  cursor: grab;
}

/* Toggle switch */
.toggle-switch {
  -webkit-appearance: none;
  appearance: none;
  width: 48px;
  height: 26px;
  border-radius: 13px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  position: relative;
  cursor: pointer;
  transition: all 0.3s;
}

.toggle-switch::before {
  content: '';
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--text-secondary);
  transition: all 0.3s;
}

.toggle-switch:checked {
  background: rgba(79, 195, 247, 0.3);
  border-color: var(--accent-cyan);
}

.toggle-switch:checked::before {
  transform: translateX(22px);
  background: var(--accent-cyan);
  box-shadow: 0 0 8px rgba(79, 195, 247, 0.5);
}

/* Result cards */
.result-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-surface);
  border: 1px solid rgba(255, 255, 255, 0.05);
  border-radius: var(--border-radius-sm);
}

.result-card.highlight {
  border-color: var(--accent-amber);
  background: rgba(255, 171, 0, 0.08);
}

.result-card.final {
  border-color: var(--accent-cyan);
  background: rgba(79, 195, 247, 0.1);
  padding: var(--spacing-md);
}

.result-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.result-value {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-primary);
}

.result-card.final .result-value {
  font-size: 1.5rem;
  color: var(--accent-cyan);
  text-shadow: 0 0 10px rgba(79, 195, 247, 0.5);
}

/* Settings */
.settings-list {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.setting-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md);
  background: var(--bg-surface);
  border-radius: var(--border-radius-sm);
  border: 1px solid rgba(255, 255, 255, 0.05);
  cursor: pointer;
}

.setting-item span {
  font-size: 0.95rem;
}