/* ============================================
   1. CSS Custom Properties (Design Tokens)
   ============================================ */
:root {
  /* Colors */
  --color-primary:      #D97706; /* honey amber */
  --color-primary-dark: #B45309;
  --color-secondary:    #65A30D; /* natural green */
  --color-whatsapp:     #25D366;
  --color-bg:           #FFFBEB; /* warm honey tint */
  --color-bg-alt:       #FEF3C7;
  --color-text:         #1F2937;
  --color-text-muted:   #78716C;
  --color-white:        #FFFFFF;
  --color-focus:        #2563EB;

  /* Typography */
  --font-body: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;

  /* Layout */
  --container-max: 1200px;
  --radius:        12px;
  --shadow-sm:     0 1px 3px rgba(0, 0, 0, 0.08);
  --shadow-md:     0 4px 12px rgba(0, 0, 0, 0.10);
}

/* ============================================
   2. Base / Reset
   ============================================ */

/* Box-sizing inheritance */
*,
*::before,
*::after {
  box-sizing: border-box;
}

/* Margin / padding reset */
body,
h1, h2, h3, h4, h5, h6,
p,
ul, ol {
  margin:  0;
  padding: 0;
}

/* Base body — 16 px minimum satisfies Req 15.4 */
body {
  font-family:      var(--font-body);
  font-size:        16px;
  line-height:      1.6;
  color:            var(--color-text);
  background-color: var(--color-bg);
}

/* Heading scale — no skipped levels */
h1 { font-size: 2rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.25rem; }

/* Images */
img {
  max-width: 100%;
  height:    auto;
  display:   block;
}

/* Focus indicator — 3:1+ contrast ratio satisfies Req 17.3 */
*:focus-visible {
  outline:        3px solid var(--color-focus);
  outline-offset: 2px;
}

/* Links — color inherited from context, decoration stripped */
a {
  color:           inherit;
  text-decoration: none;
}

/* Remove default list bullets (utility; sections can restore as needed) */
ul, ol {
  list-style: none;
}

/* ============================================
   3. Layout utilities (container, grid)
   ============================================ */

.container {
  max-width:  var(--container-max);
  margin:     0 auto;
  padding:    0 var(--spacing-sm);
}

.section-title {
  text-align:    center;
  margin-bottom: var(--spacing-lg);
  color:         var(--color-primary);
  font-weight:   700;
}

/* ============================================
   4. Component styles (per section)
   ============================================ */

/* --- Site Header --- */
.site-header {
  display:          flex;
  align-items:      center;
  padding:          var(--spacing-sm);
  background:       var(--color-white);
  box-shadow:       var(--shadow-sm);
  position:         sticky;
  top:              0;
  z-index:          100;
}

.site-header__logo {
  display:     flex;
  align-items: center;
  gap:         var(--spacing-xs);
}

.site-header__brand {
  font-weight: 700;
  font-size:   1.125rem;
  color:       var(--color-primary);
}

/* --- Hero Section --- */
.hero {
  display:        flex;
  flex-direction: column;
  gap:            var(--spacing-lg);
  padding:        var(--spacing-lg) var(--spacing-sm);
  background:     linear-gradient(135deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
}

.hero__badge {
  background:    var(--color-primary);
  color:         var(--color-white);
  padding:       var(--spacing-xs) var(--spacing-sm);
  border-radius: 999px;
  font-size:     0.875rem;
  font-weight:   600;
  display:       inline-block;
  margin-bottom: var(--spacing-sm);
}

.hero__title {
  font-size:     2rem;
  font-weight:   800;
  color:         var(--color-primary-dark);
  line-height:   1.2;
  margin-bottom: var(--spacing-sm);
}

.hero__subtitle {
  font-size:     1rem;
  color:         var(--color-text);
  margin-bottom: var(--spacing-md);
  line-height:   1.7;
}

.hero__note {
  font-size:  0.875rem;
  color:      var(--color-text-muted);
  font-style: italic;
  margin-top: var(--spacing-xs);
}

.hero__image img {
  width:         100%;
  border-radius: var(--radius);
}

@media (min-width: 768px) {
  .hero {
    flex-direction: row;
    align-items:    center;
    padding:        var(--spacing-xl) var(--spacing-lg);
  }

  .hero__content {
    flex: 1;
  }

  .hero__image {
    flex: 1;
  }
}

/* --- WhatsApp Button --- */
.btn--whatsapp {
  display:       inline-flex;
  align-items:   center;
  gap:           var(--spacing-xs);
  background:    var(--color-whatsapp);
  color:         var(--color-white);
  font-weight:   700;
  font-size:     1rem;
  padding:       var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius);
  cursor:        pointer;
  transition:    opacity 0.2s;
  text-align:    center;
}

.btn--whatsapp:hover,
.btn--whatsapp:focus-visible {
  opacity: 0.88;
}

/* --- Pain Points Section --- */
.pain-points {
  padding:    var(--spacing-xl) var(--spacing-sm);
  background: var(--color-bg-alt);
}

.pain-points__grid {
  display:               grid;
  grid-template-columns: 1fr;
  gap:                   var(--spacing-md);
}

.problem-card {
  background:    var(--color-white);
  border-radius: var(--radius);
  padding:       var(--spacing-md);
  box-shadow:    var(--shadow-sm);
}

.problem-card img {
  width:            100%;
  border-radius:    calc(var(--radius) - 4px);
  margin-bottom:    var(--spacing-sm);
  aspect-ratio:     1;
  object-fit:       cover;
}

.problem-card__title {
  font-size:     1.125rem;
  font-weight:   700;
  margin-bottom: var(--spacing-xs);
  color:         var(--color-primary-dark);
}

.problem-card__desc {
  font-size:   0.9375rem;
  color:       var(--color-text-muted);
  line-height: 1.6;
}

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

@media (min-width: 1024px) {
  .pain-points__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* --- Root Cause Section --- */
.root-cause {
  padding: var(--spacing-xl) var(--spacing-sm);
}

.root-cause__inner {
  display:        flex;
  flex-direction: column;
  gap:            var(--spacing-lg);
  align-items:    center;
}

.root-cause__title {
  font-size:     1.5rem;
  font-weight:   800;
  color:         var(--color-primary-dark);
  margin-bottom: var(--spacing-sm);
  line-height:   1.3;
}

.root-cause__body {
  font-size:     1rem;
  color:         var(--color-text);
  line-height:   1.7;
  margin-bottom: var(--spacing-sm);
}

.root-cause__image {
  border-radius: var(--radius);
  box-shadow:    var(--shadow-md);
}

@media (min-width: 1024px) {
  .root-cause__inner {
    flex-direction: row;
  }

  .root-cause__content {
    flex: 1;
  }

  .root-cause__image-wrap {
    flex-shrink: 0;
  }

  .root-cause__image {
    min-width: 400px;
  }
}

/* --- Ingredients Section --- */
.ingredients {
  padding:    var(--spacing-xl) var(--spacing-sm);
  background: var(--color-bg-alt);
}

.ingredients__grid {
  display:               grid;
  grid-template-columns: 1fr;
  gap:                   var(--spacing-md);
}

.ingredient-card {
  background:    var(--color-white);
  border-radius: var(--radius);
  padding:       var(--spacing-md);
  text-align:    center;
  box-shadow:    var(--shadow-sm);
}

.ingredient-card img {
  width:         100px;
  height:        100px;
  object-fit:    contain;
  margin:        0 auto var(--spacing-sm);
}

.ingredient-card__name {
  font-weight:   700;
  color:         var(--color-primary-dark);
  margin-bottom: var(--spacing-xs);
}

.ingredient-card__benefit {
  font-size:   0.875rem;
  color:       var(--color-text-muted);
  line-height: 1.6;
}

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

@media (min-width: 1024px) {
  .ingredients__grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

/* --- Taste Section --- */
.taste {
  padding: var(--spacing-xl) var(--spacing-sm);
}

.taste__features {
  display:               grid;
  grid-template-columns: 1fr;
  gap:                   var(--spacing-md);
  margin-top:            var(--spacing-lg);
}

.taste-feature {
  background:    var(--color-bg-alt);
  border-radius: var(--radius);
  padding:       var(--spacing-md);
  text-align:    center;
}

.taste-feature__icon {
  font-size:     2rem;
  display:       block;
  margin-bottom: var(--spacing-xs);
}

.taste-feature__title {
  font-weight:   700;
  color:         var(--color-primary-dark);
  margin-bottom: var(--spacing-xs);
}

.taste-feature__desc {
  font-size: 0.9375rem;
  color:     var(--color-text-muted);
}

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

/* --- Cara Konsumsi Section --- */
.cara-konsumsi {
  padding:    var(--spacing-xl) var(--spacing-sm);
  background: var(--color-bg-alt);
}

.cara-konsumsi__points {
  display:               grid;
  grid-template-columns: 1fr;
  gap:                   var(--spacing-md);
  margin-top:            var(--spacing-lg);
}

.usage-point {
  background:    var(--color-white);
  border-radius: var(--radius);
  padding:       var(--spacing-md);
  text-align:    center;
  box-shadow:    var(--shadow-sm);
}

.usage-point__icon {
  font-size:     2rem;
  display:       block;
  margin-bottom: var(--spacing-xs);
}

.usage-point__title {
  font-weight:   700;
  color:         var(--color-primary-dark);
  margin-bottom: var(--spacing-xs);
}

.usage-point__desc {
  font-size: 0.9375rem;
  color:     var(--color-text-muted);
}

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

/* --- Social Proof Section --- */
.social-proof {
  padding: var(--spacing-xl) var(--spacing-sm);
}

.social-proof__certs {
  display:        flex;
  flex-direction: column;
  gap:            var(--spacing-md);
  margin:         var(--spacing-lg) 0;
}

.cert-group {
  display:       flex;
  align-items:   flex-start;
  gap:           var(--spacing-sm);
  background:    var(--color-bg-alt);
  border-radius: var(--radius);
  padding:       var(--spacing-md);
}

.cert-group img {
  flex-shrink: 0;
  width:       60px;
  height:      60px;
  object-fit:  contain;
}

.cert-group__claim {
  font-size:   0.9375rem;
  color:       var(--color-text);
  line-height: 1.6;
}

.social-proof__product {
  text-align: center;
  margin:     var(--spacing-lg) 0;
}

.social-proof__product img {
  margin:        0 auto;
  max-width:     320px;
  border-radius: var(--radius);
  box-shadow:    var(--shadow-md);
}

.social-proof__testimoni-title {
  text-align:    center;
  font-weight:   700;
  color:         var(--color-primary-dark);
  margin-bottom: var(--spacing-md);
}

.testimoni-grid {
  display:               grid;
  grid-template-columns: repeat(2, 1fr);
  gap:                   var(--spacing-sm);
}

.testimoni-grid img {
  border-radius: var(--radius);
  width:         100%;
}

@media (min-width: 768px) {
  .social-proof__certs {
    flex-direction: row;
  }

  .testimoni-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* --- FAQ Section --- */
.faq {
  padding:    var(--spacing-xl) var(--spacing-sm);
  background: var(--color-bg-alt);
}

.faq__list {
  display:        flex;
  flex-direction: column;
  gap:            var(--spacing-sm);
  margin-top:     var(--spacing-lg);
}

.faq-item {
  background:    var(--color-white);
  border-radius: var(--radius);
  box-shadow:    var(--shadow-sm);
  overflow:      hidden;
}

.faq-item__heading {
  margin: 0;
}

.faq-item__trigger {
  width:           100%;
  text-align:      left;
  background:      none;
  border:          none;
  padding:         var(--spacing-md);
  font-size:       1rem;
  font-weight:     600;
  color:           var(--color-text);
  cursor:          pointer;
  display:         flex;
  justify-content: space-between;
  align-items:     center;
  font-family:     var(--font-body);
}

.faq-item__trigger::after {
  content:    '＋';
  font-size:  1.25rem;
  color:      var(--color-primary);
  flex-shrink: 0;
}

.faq-item__trigger[aria-expanded="true"]::after {
  content: '－';
}

.faq-item__panel {
  padding:     0 var(--spacing-md) var(--spacing-md);
  font-size:   0.9375rem;
  color:       var(--color-text-muted);
  line-height: 1.7;
}

.faq-item__panel[hidden] {
  display: none;
}

/* --- Final CTA Section --- */
.final-cta {
  padding:    var(--spacing-xl) var(--spacing-sm);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color:      var(--color-white);
  text-align: center;
}

.final-cta__title {
  font-size:     1.75rem;
  font-weight:   800;
  margin-bottom: var(--spacing-sm);
}

.final-cta__subtitle {
  font-size:   1rem;
  opacity:     0.92;
  max-width:   600px;
  margin:      0 auto var(--spacing-lg);
  line-height: 1.7;
}

/* --- Sticky WhatsApp Button (Req 1.3, 13.1–13.4) --- */
.sticky-wa {
  position:      fixed;
  bottom:        16px;
  right:         16px;
  z-index:       1000;
  background:    var(--color-whatsapp);
  color:         var(--color-white);
  border-radius: 999px;
  padding:       var(--spacing-sm) var(--spacing-md);
  display:       flex;
  align-items:   center;
  gap:           var(--spacing-xs);
  font-weight:   700;
  font-size:     0.9375rem;
  box-shadow:    var(--shadow-md);
  transition:    opacity 0.2s;
}

.sticky-wa:hover,
.sticky-wa:focus-visible {
  opacity: 0.88;
}

.sticky-wa img {
  width:  28px;
  height: 28px;
}

/* --- Footer --- */
.site-footer {
  background:  var(--color-text);
  color:       var(--color-white);
  padding:     var(--spacing-xl) var(--spacing-sm);
  text-align:  center;
}

.site-footer__brand {
  display:         flex;
  align-items:     center;
  justify-content: center;
  gap:             var(--spacing-xs);
  margin-bottom:   var(--spacing-md);
  font-size:       1.125rem;
  font-weight:     700;
}

.site-footer__certs {
  font-size:     0.875rem;
  opacity:       0.85;
  margin-bottom: var(--spacing-sm);
}

.site-footer__contact {
  margin-bottom: var(--spacing-md);
}

.site-footer__contact a {
  display:       inline-flex;
  align-items:   center;
  gap:           var(--spacing-xs);
  background:    var(--color-whatsapp);
  color:         var(--color-white);
  font-weight:   700;
  padding:       var(--spacing-xs) var(--spacing-md);
  border-radius: var(--radius);
}

.site-footer__copyright {
  font-size: 0.8125rem;
  opacity:   0.6;
}