/* ========================================
   Feedback Demo
   ======================================== */

.feedback-comparison {
  text-align: center;
  margin-bottom: var(--space-12);
}

.comparison-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--space-2);
}

.comparison-subtitle {
  color: var(--fg-muted);
  margin-bottom: var(--space-6);
  font-size: var(--text-sm);
}

.comparison-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-4);
}

/* Feedback Cards */
.feedback-card {
  background: var(--bg);
  border: 1px solid var(--border);
  padding: var(--space-6);
  text-align: center;
}

.feedback-card.bad {
  border-style: dashed;
}

.feedback-card.good {
  border-color: #22c55e;
}

.card-header {
  margin-bottom: var(--space-5);
}

.card-header h3 {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 600;
  margin-top: var(--space-2);
}

.feedback-type {
  display: inline-block;
  padding: var(--space-1) var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.feedback-type.bad {
  background: rgba(239, 68, 68, 0.1);
  color: #ef4444;
}

.feedback-type.good {
  background: rgba(34, 197, 94, 0.1);
  color: #22c55e;
}

.card-demo {
  min-height: 80px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
}

.card-note {
  margin-top: var(--space-4);
  font-size: var(--text-sm);
  color: var(--fg-muted);
}

.card-result {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  min-height: 20px;
}

/* Silent Button */
.silent-btn {
  padding: var(--space-2) var(--space-4);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 500;
  background: var(--bg-secondary);
  color: var(--fg);
  border: 1px solid var(--border);
  cursor: pointer;
}

/* Delightful Button */
.delight-btn {
  position: relative;
  padding: var(--space-2) var(--space-4);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  background: var(--fg);
  color: var(--bg);
  border: none;
  cursor: pointer;
  overflow: hidden;
  transition: all 0.2s var(--ease);
}

.delight-btn:hover {
  opacity: 0.9;
}

.delight-btn:active {
  transform: scale(0.98);
}

.btn-content {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  transition: all 0.2s var(--ease);
}

.btn-success {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  opacity: 0;
  transition: all 0.2s var(--ease);
}

.delight-btn.success {
  background: #22c55e;
}

.delight-btn.success .btn-content {
  opacity: 0;
  transform: translateY(-20px);
}

.delight-btn.success .btn-success {
  opacity: 1;
}

.cart-icon {
  transition: transform 0.2s var(--ease);
}

.delight-btn:hover .cart-icon {
  transform: scale(1.1);
}

/* Elements Section */
.elements-section {
  margin-bottom: var(--space-12);
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--text-base);
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--space-2);
}

.section-subtitle {
  color: var(--fg-muted);
  text-align: center;
  margin-bottom: var(--space-6);
  font-size: var(--text-sm);
}

.elements-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-4);
}

.element-card {
  background: var(--bg);
  border: 1px solid var(--border);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}

.element-card h4 {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--fg-faint);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Toggle Switch */
.toggle-switch {
  position: relative;
  width: 48px;
  height: 26px;
  cursor: pointer;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: all 0.2s var(--ease);
}

.toggle-slider::before {
  content: '';
  position: absolute;
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background: var(--fg);
  border-radius: 50%;
  transition: all 0.2s var(--ease);
}

.toggle-switch input:checked + .toggle-slider {
  background: var(--fg);
  border-color: var(--fg);
}

.toggle-switch input:checked + .toggle-slider::before {
  transform: translateX(22px);
  background: var(--bg);
}

/* Like Button */
.like-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  background: transparent;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.2s var(--ease);
}

.like-btn:hover {
  border-color: #ec4899;
}

.heart-icon {
  transition: all 0.2s var(--ease);
}

.like-btn:hover .heart-icon {
  color: #ec4899;
  transform: scale(1.1);
}

.like-btn.liked {
  border-color: #ec4899;
  background: rgba(236, 72, 153, 0.1);
}

.like-btn.liked .heart-icon {
  color: #ec4899;
  fill: #ec4899;
  animation: heartPop 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes heartPop {
  0% { transform: scale(1); }
  50% { transform: scale(1.3); }
  100% { transform: scale(1); }
}

.like-count {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--fg-muted);
  min-width: 20px;
}

.like-btn.liked .like-count {
  color: #ec4899;
}

/* Checkbox */
.custom-checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  cursor: pointer;
  font-size: var(--text-sm);
}

.custom-checkbox input {
  display: none;
}

.checkmark {
  width: 18px;
  height: 18px;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s var(--ease);
}

.checkmark svg {
  opacity: 0;
  transform: scale(0);
  color: var(--bg);
  transition: all 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.custom-checkbox input:checked + .checkmark {
  background: var(--fg);
  border-color: var(--fg);
}

.custom-checkbox input:checked + .checkmark svg {
  opacity: 1;
  transform: scale(1);
}

/* Submit Button */
.submit-btn {
  position: relative;
  padding: var(--space-2) var(--space-5);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  background: var(--fg);
  color: var(--bg);
  border: none;
  cursor: pointer;
  min-width: 100px;
  transition: all 0.2s var(--ease);
}

.submit-btn:hover {
  opacity: 0.9;
}

.submit-text,
.submit-check {
  transition: all 0.2s var(--ease);
}

.submit-loader {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: white;
  border-radius: 50%;
  opacity: 0;
}

.submit-btn.loading .submit-text {
  opacity: 0;
}

.submit-btn.loading .submit-loader {
  opacity: 1;
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to { transform: translate(-50%, -50%) rotate(360deg); }
}

.submit-btn.success {
  background: #22c55e;
}

.submit-btn.success .submit-text {
  opacity: 0;
}

.submit-btn.success .submit-check {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

/* Star Rating */
.star-rating {
  display: flex;
  gap: 2px;
}

.star {
  font-size: 24px;
  background: none;
  border: none;
  color: var(--border);
  cursor: pointer;
  transition: all 0.2s var(--ease);
  padding: 0;
  line-height: 1;
}

.star:hover {
  transform: scale(1.15);
}

.star.active {
  color: #fbbf24;
  animation: starPop 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes starPop {
  0% { transform: scale(1); }
  50% { transform: scale(1.3); }
  100% { transform: scale(1); }
}

/* Progress Button */
.progress-btn {
  position: relative;
  padding: var(--space-2) var(--space-5);
  font-family: var(--font-display);
  font-size: var(--text-sm);
  font-weight: 600;
  background: var(--bg-secondary);
  color: var(--fg);
  border: 1px solid var(--border);
  cursor: pointer;
  overflow: hidden;
  min-width: 120px;
}

.progress-text {
  position: relative;
  z-index: 1;
  transition: all 0.2s var(--ease);
}

.progress-bar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  opacity: 0;
}

.progress-fill {
  height: 100%;
  width: 0;
  background: var(--fg);
  transition: width 0.05s linear;
}

.progress-btn.loading .progress-bar {
  opacity: 1;
}

.progress-btn.loading .progress-text {
  color: var(--bg);
}

.progress-btn.complete {
  background: #22c55e;
  border-color: #22c55e;
  color: white;
}

/* Form Section */
.form-section {
  margin-bottom: var(--space-12);
}

.form-demo {
  max-width: 400px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.form-field {
  text-align: left;
}

.form-field label {
  display: block;
  font-size: var(--text-sm);
  font-weight: 500;
  margin-bottom: var(--space-2);
}

.input-wrapper {
  position: relative;
}

.input-wrapper input {
  width: 100%;
  padding: var(--space-2) var(--space-3);
  padding-right: var(--space-10);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--fg);
  transition: all 0.2s var(--ease);
}

.input-wrapper input:focus {
  outline: none;
  border-color: var(--fg);
}

.input-wrapper input.valid {
  border-color: #22c55e;
}

.input-wrapper input.invalid {
  border-color: #ef4444;
}

.input-icon {
  position: absolute;
  right: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  opacity: 0;
  transition: all 0.2s var(--ease);
}

.input-wrapper input.valid ~ .input-icon::before {
  content: '✓';
  color: #22c55e;
  opacity: 1;
}

.input-wrapper input.invalid ~ .input-icon::before {
  content: '✕';
  color: #ef4444;
  opacity: 1;
}

.input-wrapper input.valid ~ .input-icon,
.input-wrapper input.invalid ~ .input-icon {
  opacity: 1;
}

.field-message {
  display: block;
  font-size: var(--text-xs);
  margin-top: var(--space-2);
  min-height: 18px;
}

.field-message.error { color: #ef4444; }
.field-message.success { color: #22c55e; }

/* Password Strength */
.password-strength {
  margin-top: var(--space-3);
}

.strength-bar {
  height: 3px;
  background: var(--bg-secondary);
  overflow: hidden;
  margin-bottom: var(--space-2);
}

.strength-bar::before {
  content: '';
  display: block;
  height: 100%;
  width: 0;
  transition: all 0.2s var(--ease);
}

.password-strength.weak .strength-bar::before {
  width: 33%;
  background: #ef4444;
}

.password-strength.medium .strength-bar::before {
  width: 66%;
  background: #eab308;
}

.password-strength.strong .strength-bar::before {
  width: 100%;
  background: #22c55e;
}

.strength-text {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--fg-muted);
}

.password-strength.weak .strength-text { color: #ef4444; }
.password-strength.medium .strength-text { color: #eab308; }
.password-strength.strong .strength-text { color: #22c55e; }

@media (max-width: 600px) {
  .comparison-cards {
    grid-template-columns: 1fr;
  }

  .elements-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}