/* ===================================================
   FitForge AI — Component Styles
   =================================================== */

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-8);
  font-family: var(--ff-heading);
  font-weight: 600;
  font-size: var(--fs-sm);
  border-radius: var(--rad-full);
  transition: all var(--tr-base);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  letter-spacing: 0.5px;
}

.btn-lg {
  padding: var(--sp-4) var(--sp-10);
  font-size: var(--fs-base);
}

.btn-sm {
  padding: var(--sp-2) var(--sp-5);
  font-size: var(--fs-xs);
}

.btn-primary {
  background: var(--clr-primary);
  color: var(--clr-bg);
  box-shadow: 0 0 0 0 var(--clr-primary-glow);
}

.btn-primary:hover {
  background: #B8FF4D;
  box-shadow: 0 0 30px var(--clr-primary-glow);
  transform: translateY(-2px);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background: transparent;
  color: var(--clr-secondary);
  border: 1px solid var(--clr-border);
}

.btn-secondary:hover {
  border-color: var(--clr-primary);
  color: var(--clr-primary);
  box-shadow: var(--shadow-glow-sm);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--clr-primary);
  border: 1px solid var(--clr-primary);
}

.btn-outline:hover {
  background: var(--clr-primary);
  color: var(--clr-bg);
  box-shadow: var(--shadow-glow);
  transform: translateY(-2px);
}

.btn-ghost {
  background: var(--clr-primary-dim);
  color: var(--clr-primary);
}

.btn-ghost:hover {
  background: rgba(163, 255, 18, 0.25);
}

/* Button ripple effect */
.btn .ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.3);
  animation: ripple 0.6s ease-out;
  pointer-events: none;
}

/* ── Cards ── */
.card {
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--rad-lg);
  padding: var(--sp-8);
  transition: all var(--tr-base);
  position: relative;
  overflow: hidden;
}

.card:hover {
  background: var(--clr-bg-card-hover);
  border-color: var(--clr-border-hover);
  box-shadow: var(--shadow-glow-sm);
  transform: translateY(-4px);
}

.card-glass {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--rad-lg);
  padding: var(--sp-8);
  transition: all var(--tr-base);
}

.card-glass:hover {
  border-color: var(--clr-border-hover);
  box-shadow: var(--shadow-glow-sm);
}

.card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: var(--rad-md);
  margin-bottom: var(--sp-4);
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--rad-md);
  background: var(--clr-primary-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-xl);
  margin-bottom: var(--sp-4);
  color: var(--clr-primary);
}

.card h3 {
  font-size: var(--fs-lg);
  margin-bottom: var(--sp-2);
}

.card p {
  color: var(--clr-accent);
  font-size: var(--fs-sm);
  line-height: 1.6;
}

/* ── Form Elements ── */
.form-group {
  margin-bottom: var(--sp-6);
}

.form-label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--clr-accent-light);
  margin-bottom: var(--sp-2);
  font-family: var(--ff-heading);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--sp-3) var(--sp-4);
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--rad-md);
  color: var(--clr-secondary);
  font-size: var(--fs-base);
  transition: all var(--tr-base);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px var(--clr-primary-dim);
  background: var(--clr-surface-1);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--clr-accent);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23888888' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: var(--sp-10);
}

.form-error {
  font-size: var(--fs-xs);
  color: var(--clr-danger);
  margin-top: var(--sp-1);
  display: none;
}

.form-error.visible {
  display: block;
  animation: fadeInUp 0.3s ease;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-4);
}

@media (max-width: 640px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

/* ── Badge ── */
.badge {
  display: inline-flex;
  align-items: center;
  padding: var(--sp-1) var(--sp-3);
  border-radius: var(--rad-full);
  font-size: var(--fs-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-primary {
  background: var(--clr-primary-dim);
  color: var(--clr-primary);
}

.badge-outline {
  border: 1px solid var(--clr-border);
  color: var(--clr-accent);
}

.badge-popular {
  background: var(--clr-primary);
  color: var(--clr-bg);
}

/* ── Tags ── */
.tag {
  display: inline-block;
  padding: var(--sp-1) var(--sp-3);
  background: var(--clr-surface-2);
  border-radius: var(--rad-sm);
  font-size: var(--fs-xs);
  color: var(--clr-accent);
  transition: all var(--tr-fast);
  cursor: pointer;
}

.tag:hover,
.tag.active {
  background: var(--clr-primary-dim);
  color: var(--clr-primary);
}

/* ── Rating Stars ── */
.rating {
  display: flex;
  gap: 2px;
  color: var(--clr-primary);
  font-size: var(--fs-sm);
}

.rating .star-empty {
  color: var(--clr-surface-3);
}

/* ── Toggle Switch ── */
.toggle-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-4);
  margin-bottom: var(--sp-8);
}

.toggle-container span {
  font-size: var(--fs-sm);
  color: var(--clr-accent);
  font-weight: 500;
  transition: color var(--tr-base);
}

.toggle-container span.active {
  color: var(--clr-secondary);
}

.toggle-switch {
  position: relative;
  width: 52px;
  height: 28px;
  border-radius: var(--rad-full);
  background: var(--clr-surface-3);
  cursor: pointer;
  transition: background var(--tr-base);
}

.toggle-switch.active {
  background: var(--clr-primary);
}

.toggle-switch::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--clr-secondary);
  transition: transform var(--tr-base);
  box-shadow: var(--shadow-sm);
}

.toggle-switch.active::after {
  transform: translateX(24px);
  background: var(--clr-bg);
}

/* ── Accordion ── */
.accordion-item {
  border-bottom: 1px solid var(--clr-border);
}

.accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-5) 0;
  cursor: pointer;
  transition: color var(--tr-base);
  font-family: var(--ff-heading);
  font-weight: 500;
  font-size: var(--fs-md);
}

.accordion-header:hover {
  color: var(--clr-primary);
}

.accordion-icon {
  font-size: var(--fs-lg);
  transition: transform var(--tr-base);
  color: var(--clr-primary);
}

.accordion-item.open .accordion-icon {
  transform: rotate(45deg);
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
}

.accordion-item.open .accordion-body {
  max-height: 500px;
  padding-bottom: var(--sp-5);
}

.accordion-body p {
  color: var(--clr-accent);
  font-size: var(--fs-sm);
  line-height: 1.7;
}

/* ── Pricing Card ── */
.pricing-card {
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--rad-xl);
  padding: var(--sp-10);
  text-align: center;
  transition: all var(--tr-base);
  position: relative;
}

.pricing-card:hover {
  transform: translateY(-8px);
  border-color: var(--clr-border-hover);
  box-shadow: var(--shadow-glow-sm);
}

.pricing-card.featured {
  border-color: var(--clr-primary);
  background: linear-gradient(to bottom, rgba(163,255,18,0.06), var(--clr-bg-card));
  box-shadow: var(--shadow-glow-sm);
  transform: scale(1.05);
}

.pricing-card.featured:hover {
  transform: scale(1.05) translateY(-8px);
}

.pricing-card .plan-name {
  font-family: var(--ff-heading);
  font-size: var(--fs-lg);
  font-weight: 600;
  margin-bottom: var(--sp-2);
}

.pricing-card .plan-price {
  font-family: var(--ff-heading);
  font-size: var(--fs-4xl);
  font-weight: 700;
  margin-bottom: var(--sp-1);
}

.pricing-card .plan-price span {
  font-size: var(--fs-sm);
  color: var(--clr-accent);
  font-weight: 400;
}

.pricing-card .plan-period {
  font-size: var(--fs-sm);
  color: var(--clr-accent);
  margin-bottom: var(--sp-8);
}

.pricing-card .plan-features {
  text-align: left;
  margin-bottom: var(--sp-8);
}

.pricing-card .plan-features li {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-2) 0;
  font-size: var(--fs-sm);
  color: var(--clr-accent-light);
}

.pricing-card .plan-features li .check {
  color: var(--clr-primary);
  font-size: var(--fs-base);
}

.pricing-card .plan-features li .cross {
  color: var(--clr-accent);
  opacity: 0.4;
}

/* ── Trainer Card ── */
.trainer-card {
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--rad-xl);
  overflow: hidden;
  transition: all var(--tr-base);
}

.trainer-card:hover {
  transform: translateY(-6px);
  border-color: var(--clr-border-hover);
  box-shadow: var(--shadow-glow-sm);
}

.trainer-card .trainer-image {
  width: 100%;
  height: 280px;
  object-fit: cover;
  transition: transform var(--tr-slow);
}

.trainer-card:hover .trainer-image {
  transform: scale(1.05);
}

.trainer-card .trainer-image-wrapper {
  overflow: hidden;
  position: relative;
}

.trainer-card .trainer-info {
  padding: var(--sp-6);
}

.trainer-card .trainer-name {
  font-family: var(--ff-heading);
  font-size: var(--fs-lg);
  font-weight: 600;
  margin-bottom: var(--sp-1);
}

.trainer-card .trainer-specialty {
  color: var(--clr-primary);
  font-size: var(--fs-sm);
  font-weight: 500;
  margin-bottom: var(--sp-3);
}

.trainer-card .trainer-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--sp-4);
}

/* ── Program Card ── */
.program-card {
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--rad-xl);
  overflow: hidden;
  transition: all var(--tr-base);
}

.program-card:hover {
  transform: translateY(-6px);
  border-color: var(--clr-border-hover);
  box-shadow: var(--shadow-glow-sm);
}

.program-card .program-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  transition: transform var(--tr-slow);
}

.program-card:hover .program-image {
  transform: scale(1.05);
}

.program-card .program-image-wrapper {
  overflow: hidden;
  position: relative;
}

.program-card .program-badge {
  position: absolute;
  top: var(--sp-3);
  right: var(--sp-3);
}

.program-card .program-info {
  padding: var(--sp-6);
}

.program-card .program-name {
  font-family: var(--ff-heading);
  font-size: var(--fs-lg);
  font-weight: 600;
  margin-bottom: var(--sp-2);
}

.program-card .program-desc {
  color: var(--clr-accent);
  font-size: var(--fs-sm);
  margin-bottom: var(--sp-4);
  line-height: 1.6;
}

.program-card .program-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-4);
  margin-bottom: var(--sp-4);
  font-size: var(--fs-sm);
  color: var(--clr-accent);
}

.program-card .program-meta span {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
}

.program-card .program-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--sp-4);
  border-top: 1px solid var(--clr-border);
}

.program-card .program-price {
  font-family: var(--ff-heading);
  font-size: var(--fs-xl);
  font-weight: 700;
  color: var(--clr-primary);
}

.program-card .program-price span {
  font-size: var(--fs-xs);
  color: var(--clr-accent);
  font-weight: 400;
}

/* ── Testimonial Card ── */
.testimonial-card {
  background: var(--clr-bg-card);
  border: 1px solid var(--clr-border);
  border-radius: var(--rad-xl);
  padding: var(--sp-8);
  position: relative;
}

.testimonial-card .quote-icon {
  font-size: var(--fs-4xl);
  color: var(--clr-primary);
  opacity: 0.3;
  font-family: serif;
  line-height: 1;
  margin-bottom: var(--sp-2);
}

.testimonial-card .quote-text {
  font-size: var(--fs-md);
  color: var(--clr-accent-light);
  line-height: 1.7;
  margin-bottom: var(--sp-6);
  font-style: italic;
}

.testimonial-card .quote-author {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

.testimonial-card .author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--clr-primary-dim);
}

.testimonial-card .author-name {
  font-family: var(--ff-heading);
  font-weight: 600;
  font-size: var(--fs-sm);
}

.testimonial-card .author-role {
  color: var(--clr-accent);
  font-size: var(--fs-xs);
}

/* ── Progress Bar ── */
.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--clr-surface-2);
  border-radius: var(--rad-full);
  overflow: hidden;
}

.progress-bar .progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--clr-primary), #7CFF4D);
  border-radius: var(--rad-full);
  transition: width 1s ease;
  width: 0;
}

/* ── Step Indicator ── */
.step-indicator {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  margin-bottom: var(--sp-8);
}

.step-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--clr-surface-3);
  transition: all var(--tr-base);
}

.step-dot.active {
  background: var(--clr-primary);
  box-shadow: 0 0 10px var(--clr-primary-glow);
}

.step-dot.completed {
  background: var(--clr-primary);
}

.step-line {
  width: 40px;
  height: 2px;
  background: var(--clr-surface-3);
  transition: background var(--tr-base);
}

.step-line.active {
  background: var(--clr-primary);
}

/* ── Tooltip ── */
.tooltip {
  position: relative;
}

.tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  padding: var(--sp-2) var(--sp-3);
  background: var(--clr-surface-1);
  color: var(--clr-secondary);
  font-size: var(--fs-xs);
  border-radius: var(--rad-sm);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--tr-fast);
  border: 1px solid var(--clr-border);
}

.tooltip:hover::after {
  opacity: 1;
}

/* ── Stat Card ── */
.stat-card {
  text-align: center;
  padding: var(--sp-6);
}

.stat-card .stat-value {
  font-family: var(--ff-heading);
  font-size: var(--fs-4xl);
  font-weight: 700;
  color: var(--clr-primary);
  line-height: 1;
  margin-bottom: var(--sp-2);
}

.stat-card .stat-label {
  font-size: var(--fs-sm);
  color: var(--clr-accent);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ── Chat UI (AI Coach) ── */
.chat-container {
  max-height: 500px;
  overflow-y: auto;
  padding: var(--sp-4);
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

.chat-message {
  display: flex;
  gap: var(--sp-3);
  max-width: 85%;
  animation: fadeInUp 0.3s ease;
}

.chat-message.ai {
  align-self: flex-start;
}

.chat-message.user {
  align-self: flex-end;
  flex-direction: row-reverse;
}

.chat-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--clr-primary-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-sm);
  flex-shrink: 0;
}

.chat-bubble {
  padding: var(--sp-3) var(--sp-4);
  border-radius: var(--rad-lg);
  font-size: var(--fs-sm);
  line-height: 1.6;
}

.chat-message.ai .chat-bubble {
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-top-left-radius: var(--sp-1);
}

.chat-message.user .chat-bubble {
  background: var(--clr-primary-dim);
  border: 1px solid rgba(163,255,18,0.2);
  border-top-right-radius: var(--sp-1);
}

/* ── Divider ── */
.divider {
  width: 100%;
  height: 1px;
  background: var(--clr-border);
  margin: var(--sp-8) 0;
}

/* ── Success Animation ── */
.success-check {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--clr-primary-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--sp-6);
  animation: bounceIn 0.6s ease;
}

.success-check svg {
  width: 40px;
  height: 40px;
  color: var(--clr-primary);
}

/* ── Carousel Dots ── */
.carousel-dots {
  display: flex;
  justify-content: center;
  gap: var(--sp-2);
  margin-top: var(--sp-6);
}

.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--clr-surface-3);
  cursor: pointer;
  transition: all var(--tr-base);
}

.carousel-dot.active {
  background: var(--clr-primary);
  width: 24px;
  border-radius: var(--rad-full);
}

/* ── Back to Top ── */
.back-to-top {
  position: fixed;
  bottom: var(--sp-8);
  right: var(--sp-8);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--clr-primary);
  color: var(--clr-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--fs-lg);
  box-shadow: var(--shadow-glow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--tr-base);
  z-index: 999;
  cursor: pointer;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 0 30px var(--clr-primary-glow);
}

/* ── Skeleton Loading ── */
.skeleton {
  background: linear-gradient(90deg, var(--clr-surface-2), var(--clr-surface-3), var(--clr-surface-2));
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--rad-md);
}