/* ============================================================
   Components — Buttons, Hero, Cards, Forms, etc.
   ============================================================ */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  transition:
    background var(--duration) var(--ease),
    color var(--duration) var(--ease),
    border-color var(--duration) var(--ease),
    transform var(--duration) var(--ease),
    box-shadow var(--duration) var(--ease);
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn--primary {
  background: var(--color-brand);
  color: #fff;
  border-color: var(--color-brand);
}

.btn--primary:hover {
  background: var(--color-brand-dark);
  border-color: var(--color-brand-dark);
  color: #fff;
  box-shadow: 0 8px 20px rgba(200, 16, 46, 0.3);
}

.btn--secondary {
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-ink);
}

.btn--secondary:hover {
  background: var(--color-ink);
  color: #fff;
}

.btn--outline-light {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.7);
}

.btn--outline-light:hover {
  background: #fff;
  color: var(--color-ink);
  border-color: #fff;
}

.btn--ghost {
  background: transparent;
  color: var(--color-brand);
  border-color: var(--color-brand);
}

.btn--ghost:hover {
  background: var(--color-brand);
  color: #fff;
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

/* Hero */
.hero {
  position: relative;
  min-height: min(88vh, 44rem);
  display: flex;
  align-items: flex-end;
  color: #fff;
  overflow: hidden;
  background: #1a1a1a;
}

.hero__media {
  position: absolute;
  inset: 0;
}

.hero__media img,
.hero__media video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: var(--gradient-hero);
}

.hero__content {
  position: relative;
  z-index: 1;
  width: min(100% - 2rem, var(--container));
  margin-inline: auto;
  padding-block: clamp(4rem, 12vw, 7rem);
  max-width: 40rem;
}

.hero__brand {
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gold-soft);
  margin-bottom: var(--space-4);
}

.hero h1 {
  color: #fff;
  margin-bottom: var(--space-5);
  text-wrap: balance;
}

.hero__lead {
  font-size: var(--fs-md);
  line-height: var(--lh-snug);
  color: rgba(255, 255, 255, 0.88);
  margin-bottom: var(--space-6);
  max-width: 32rem;
}

/* Page hero (inner pages) */
.page-hero {
  position: relative;
  padding: clamp(3.5rem, 8vw, 5.5rem) 0;
  background:
    linear-gradient(135deg, rgba(26, 26, 26, 0.88), rgba(154, 12, 35, 0.75)),
    url("../assets/images/hero-products.jpg") center / cover no-repeat;
  color: #fff;
  text-align: center;
}

.page-hero h1 {
  color: #fff;
  margin-bottom: var(--space-3);
}

.page-hero p {
  color: rgba(255, 255, 255, 0.85);
  max-width: 36rem;
  margin-inline: auto;
}

/* Product cards */
.product-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  background: transparent;
  transition: transform var(--duration) var(--ease);
}

.product-card:hover {
  transform: translateY(-4px);
}

.product-card__media {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    radial-gradient(circle at 50% 40%, rgba(200, 16, 46, 0.08), transparent 60%),
    var(--color-surface);
  border: 1px solid var(--color-line);
  margin-bottom: var(--space-4);
  padding: var(--space-5);
  overflow: hidden;
}

.product-card__media img {
  max-height: 100%;
  width: auto;
  object-fit: contain;
  transition: transform var(--duration-slow) var(--ease);
}

.product-card:hover .product-card__media img {
  transform: scale(1.05);
}

.product-card__jp {
  font-family: var(--font-display);
  font-size: var(--fs-xs);
  letter-spacing: 0.12em;
  color: var(--color-gold);
  margin-bottom: var(--space-1);
}

.product-card h3 {
  font-size: var(--fs-lg);
  margin-bottom: var(--space-3);
}

.product-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-bottom: var(--space-3);
}

.tag {
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  color: var(--color-brand);
  border: 1px solid rgba(200, 16, 46, 0.25);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
}

.product-card p {
  font-size: var(--fs-sm);
  color: var(--color-muted);
  flex-grow: 1;
  margin-bottom: var(--space-4);
}

.product-card .btn {
  align-self: flex-start;
  padding: 0.65rem 1.25rem;
}

/* Feature / info blocks */
.feature-block {
  padding: var(--space-6);
  background: var(--color-surface);
  border-left: 3px solid var(--color-brand);
  box-shadow: var(--shadow-sm);
}

.feature-block h3 {
  margin-bottom: var(--space-3);
}

.feature-block p {
  color: var(--color-ink-soft);
  font-size: var(--fs-sm);
}

/* Check list */
.check-list {
  display: grid;
  gap: var(--space-2);
}

.check-list li {
  position: relative;
  padding-left: 1.5rem;
  font-size: var(--fs-sm);
  color: var(--color-ink-soft);
}

.check-list li::before {
  content: "✔";
  position: absolute;
  left: 0;
  color: var(--color-brand);
  font-size: 0.8rem;
}

/* Patent grid */
.patent-grid {
  display: grid;
  gap: var(--space-3);
}

@media (min-width: 640px) {
  .patent-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.patent-item {
  padding: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-line);
}

.patent-item a {
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  letter-spacing: 0.04em;
  color: var(--color-brand);
}

.patent-item p {
  font-size: var(--fs-sm);
  color: var(--color-muted);
  margin-top: var(--space-1);
}

/* Benefit groups */
.benefit-group {
  margin-bottom: var(--space-6);
}

.benefit-group h4 {
  color: var(--color-brand);
  margin-bottom: var(--space-3);
  font-size: var(--fs-md);
}

/* Price banner */
.price-banner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  background: var(--color-ink);
  color: #fff;
}

.price-banner__price {
  font-family: var(--font-display);
  font-size: var(--fs-xl);
  letter-spacing: 0.04em;
}

.price-banner__meta {
  font-size: var(--fs-sm);
  color: rgba(255, 255, 255, 0.7);
}

/* Forms */
.form {
  display: grid;
  gap: var(--space-4);
}

.form-row {
  display: grid;
  gap: var(--space-4);
}

@media (min-width: 640px) {
  .form-row--2 {
    grid-template-columns: 1fr 1fr;
  }
}

.form-field > label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  margin-bottom: var(--space-2);
  color: var(--color-ink-soft);
}

.form-field .label-like {
  display: block;
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  margin-bottom: var(--space-2);
  color: var(--color-ink-soft);
}

.form-field .required {
  color: var(--color-brand);
}

.form-field input:not([type="radio"]):not([type="checkbox"]),
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  transition: border-color var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}

.form-field input[type="radio"],
.form-field input[type="checkbox"] {
  width: auto;
  padding: 0;
  margin: 0;
  border: none;
  background: transparent;
  box-shadow: none;
  accent-color: var(--color-brand);
}

.form-field input:not([type="radio"]):not([type="checkbox"]):focus,
.form-field select:focus,
.form-field textarea:focus {
  border-color: var(--color-brand);
  box-shadow: 0 0 0 3px rgba(200, 16, 46, 0.12);
  outline: none;
}

.form-field textarea {
  min-height: 8rem;
  resize: vertical;
}

.form-field--error input:not([type="radio"]):not([type="checkbox"]),
.form-field--error select,
.form-field--error textarea {
  border-color: var(--color-brand);
}

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

.form-field--error .form-error {
  display: block;
}

.form-radios {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3) var(--space-5);
  margin-top: var(--space-2);
}

.form-radios label {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--fs-sm);
  font-weight: var(--fw-regular);
  margin: 0;
  color: var(--color-ink);
  cursor: pointer;
  white-space: nowrap;
  flex: 0 0 auto;
}

.form-radios input[type="radio"] {
  flex-shrink: 0;
}

.form-message {
  display: none;
  padding: var(--space-3) var(--space-4);
  font-size: var(--fs-sm);
  border-radius: var(--radius-sm);
}

.form-message.is-success {
  display: block;
  background: #e8f5e9;
  color: #1b5e20;
}

.form-message.is-error {
  display: block;
  background: #fce8eb;
  color: var(--color-brand-dark);
}

.form--inline {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.form--inline input {
  flex: 1 1 10rem;
  min-width: 0;
  padding: 0.7rem 1rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-sm);
  color: #fff;
}

.form--inline input::placeholder {
  color: rgba(255, 255, 255, 0.45);
}

.form--inline .btn {
  flex-shrink: 0;
}

/* CTA band */
.cta-band {
  padding: var(--space-8) 0;
  background:
    linear-gradient(135deg, rgba(154, 12, 35, 0.92), rgba(26, 26, 26, 0.9)),
    url("../assets/images/join-us.jpg") center / cover no-repeat;
  color: #fff;
  text-align: center;
}

.cta-band h2 {
  color: #fff;
  margin-bottom: var(--space-4);
}

.cta-band p {
  max-width: 36rem;
  margin-inline: auto;
  margin-bottom: var(--space-6);
  color: rgba(255, 255, 255, 0.85);
}

/* Doctor / testimonial preview */
.doctor-grid {
  display: grid;
  gap: var(--space-4);
}

@media (min-width: 640px) {
  .doctor-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .doctor-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.doctor-card img {
  width: 100%;
  border: 1px solid var(--color-line);
}

/* Map placeholder */
.map-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  min-height: 20rem;
  background:
    repeating-linear-gradient(
      -45deg,
      var(--color-surface-alt),
      var(--color-surface-alt) 12px,
      var(--color-surface-warm) 12px,
      var(--color-surface-warm) 24px
    );
  border: 1px solid var(--color-line);
  text-align: center;
  padding: var(--space-6);
}

.map-placeholder strong {
  font-family: var(--font-display);
  font-size: var(--fs-lg);
  letter-spacing: 0.06em;
}

.map-placeholder p {
  color: var(--color-muted);
  font-size: var(--fs-sm);
}

/* Back to top */
.back-to-top {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: var(--z-top);
  width: 2.75rem;
  height: 2.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-brand);
  color: #fff;
  border-radius: 50%;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(0.75rem);
  transition:
    opacity var(--duration) var(--ease),
    visibility var(--duration),
    transform var(--duration) var(--ease),
    background var(--duration) var(--ease);
}

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

.back-to-top:hover {
  background: var(--color-brand-dark);
  color: #fff;
}

.back-to-top svg {
  width: 1.1rem;
  height: 1.1rem;
}

/* WhatsApp float */
.whatsapp-float {
  position: fixed;
  left: 1.25rem;
  bottom: 1.25rem;
  z-index: var(--z-top);
  width: 3.25rem;
  height: 3.25rem;
  border-radius: 50%;
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: transform var(--duration) var(--ease);
}

.whatsapp-float:hover {
  transform: scale(1.08);
}

.whatsapp-float img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Membership tiers */
.tier-grid {
  display: grid;
  gap: var(--space-5);
}

@media (min-width: 768px) {
  .tier-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.tier-card {
  text-align: center;
  padding: var(--space-6) var(--space-5);
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  transition: border-color var(--duration) var(--ease), box-shadow var(--duration) var(--ease);
}

.tier-card:hover {
  border-color: var(--color-brand);
  box-shadow: var(--shadow-md);
}

.tier-card__icon {
  font-size: 2rem;
  margin-bottom: var(--space-3);
}

.tier-card h3 {
  margin-bottom: var(--space-2);
}

.tier-card p {
  font-size: var(--fs-sm);
  color: var(--color-muted);
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  padding: var(--space-6);
  background: rgba(10, 10, 10, 0.88);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration) var(--ease), visibility var(--duration);
}

.lightbox.is-open {
  opacity: 1;
  visibility: visible;
}

.lightbox__img {
  max-width: min(92vw, 56rem);
  max-height: min(78vh, 40rem);
  width: auto;
  height: auto;
  object-fit: contain;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: var(--shadow-lg);
}

.lightbox__caption {
  color: rgba(255, 255, 255, 0.85);
  font-size: var(--fs-sm);
  text-align: center;
  max-width: 40rem;
}

.lightbox__close {
  position: absolute;
  top: 1rem;
  right: 1.25rem;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  font-size: 1.75rem;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.lightbox__close:hover {
  background: var(--color-brand);
}

body.lightbox-open {
  overflow: hidden;
}

.lightbox-trigger {
  display: block;
  cursor: zoom-in;
  transition: transform var(--duration) var(--ease), opacity var(--duration) var(--ease);
}

.lightbox-trigger:hover {
  transform: translateY(-3px);
  opacity: 0.92;
}

.lightbox-trigger img {
  width: 100%;
  display: block;
}

/* YouTube embeds */
.video-grid {
  display: grid;
  gap: var(--space-5);
}

@media (min-width: 768px) {
  .video-grid--2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.video-embed {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: #111;
  border: 1px solid var(--color-line);
  overflow: hidden;
}

.video-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* Image content blocks (ingredient cards etc.) */
.img-grid {
  display: grid;
  gap: var(--space-4);
}

@media (min-width: 640px) {
  .img-grid--2 { grid-template-columns: repeat(2, 1fr); }
  .img-grid--3 { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 640px) {
  .img-grid--4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 900px) {
  .img-grid--4 { grid-template-columns: repeat(4, 1fr); }
  .img-grid--5 { grid-template-columns: repeat(5, 1fr); }
}

@media (max-width: 899px) and (min-width: 640px) {
  .img-grid--5 { grid-template-columns: repeat(3, 1fr); }
}

.img-grid img {
  width: 100%;
  border: 1px solid var(--color-line);
}

/* Category nav for testimonials */
.cat-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-7);
}

.cat-nav a {
  font-size: var(--fs-sm);
  padding: 0.45rem 0.9rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-sm);
  color: var(--color-ink-soft);
  background: var(--color-surface);
}

.cat-nav a:hover {
  border-color: var(--color-brand);
  color: var(--color-brand);
}

.testimonial-section {
  margin-bottom: var(--space-8);
  scroll-margin-top: calc(var(--header-h) + var(--promo-h) + 1rem);
}

.testimonial-section h3 {
  margin-bottom: var(--space-5);
  padding-bottom: var(--space-3);
  border-bottom: 2px solid var(--color-brand);
}