:root{
  --color-bg: #F6F1F5;
  --color-surface: #ffffff;
  --color-primary: #4B2E54;
  --color-primary-light: #7A4F7B;
  --color-accent: #D1495B;
  --color-accent-dark: #B23148;
  --color-text: #2B2230;
  --color-muted: #786577;
  --color-border: #E7DCE6;
  --color-star: #D9A53D;
  --radius-lg: 16px;
  --radius-md: 10px;
  --max-width: 1120px;
  --font-base: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
}

*{ box-sizing: border-box; }

html, body{ margin:0; padding:0; }

body{
  font-family: var(--font-base);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img{ max-width:100%; display:block; }

a{ color: inherit; text-decoration: none; }

ul{ margin:0; padding:0; }

.container{
  width:100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== Header ===== */
.site-header{
  background: var(--color-primary);
  color: #ffffff;
  padding: 20px 0;
}

.header-inner{ text-align:center; }

.brand-mark{
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin: 0 0 6px;
}

.brand-tagline{
  font-size: 13px;
  font-weight: 400;
  margin: 0 auto;
  max-width: 720px;
  color: rgba(255,255,255,0.85);
}

/* ===== Product section ===== */
.product{ margin-top: 28px; }

.product-card{
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: 0 10px 30px rgba(75,46,84,0.10);
  padding: 22px;
}

@media (min-width: 768px){
  .product-card{ padding: 36px; gap: 40px; }
}

.product-gallery{ flex: 1 1 0; min-width: 0; }
.product-info{ flex: 1 1 0; min-width: 0; }

/* gallery (no JS, radio + CSS technique) */
.gallery{ position: relative; }

.gallery input[type="radio"]{
  position:absolute;
  opacity:0;
  width:0;
  height:0;
  pointer-events:none;
}

.gallery-main{
  position: relative;
  width: 100%;
  aspect-ratio: 1 / 1;
  background: #f5eef4;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.gallery-main .slide{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit: contain;
  opacity:0;
  transition: opacity .25s ease;
}

#g1:checked ~ .gallery-main .slide-1,
#g2:checked ~ .gallery-main .slide-2,
#g3:checked ~ .gallery-main .slide-3,
#g4:checked ~ .gallery-main .slide-4{
  opacity:1;
}

.gallery-thumbs{
  gap: 10px;
  margin-top: 14px;
}

.gallery-thumbs label{
  display:block;
  width: 64px;
  height: 64px;
  border-radius: 8px;
  overflow: hidden;
  border: 2px solid var(--color-border);
  cursor: pointer;
  flex-shrink: 0;
}

.gallery-thumbs img{
  width:100%;
  height:100%;
  object-fit: cover;
}

#g1:checked ~ .gallery-thumbs label[for="g1"],
#g2:checked ~ .gallery-thumbs label[for="g2"],
#g3:checked ~ .gallery-thumbs label[for="g3"],
#g4:checked ~ .gallery-thumbs label[for="g4"]{
  border-color: var(--color-accent);
}

/* product info */
.product-info h1{
  font-size: 22px;
  line-height: 1.35;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 18px;
}

@media (min-width: 768px){
  .product-info h1{ font-size: 26px; }
}

.section-label{
  font-size: 17px;
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 14px;
}

.description-list{
  list-style: none;
  display:flex;
  flex-direction: column;
  gap: 14px;
}

.description-list li{
  font-size: 15px;
  color: var(--color-text);
}

.description-list li strong{
  color: var(--color-primary);
  font-weight: 700;
}

/* ===== CTA ===== */
.cta-section{
  text-align: center;
  margin: 36px 0 44px;
}

.cta-button{
  background: var(--color-accent);
  color: #ffffff;
  font-size: 18px;
  padding: 16px 52px;
  box-shadow: 0 12px 24px rgba(209,73,91,0.35);
  transition: background .2s ease, transform .15s ease;
}

.cta-button:hover{
  background: var(--color-accent-dark);
  transform: translateY(-2px);
}

/* ===== Reviews ===== */
.reviews-section{
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: 0 10px 30px rgba(75,46,84,0.08);
  padding: 26px;
  margin: 0 0 40px;
}

@media (min-width: 768px){
  .reviews-section{ padding: 36px; }
}

.review{
  padding: 22px 0;
  border-bottom: 1px solid var(--color-border);
}

.review:first-child{ padding-top: 0; }
.review:last-child{ border-bottom: none; padding-bottom: 0; }

.review-top{ gap: 14px; align-items: flex-start; }

.review-avatar{
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.review-headtext{ flex: 1; min-width: 0; }

.review-name{
  font-weight: 700;
  font-size: 14px;
  margin: 0 0 2px;
  color: var(--color-text);
}

.review-name a{
  color: var(--color-primary);
}

.review-name a:hover{
  text-decoration: underline;
}

.review-stars{
  color: var(--color-star);
  font-size: 14px;
  letter-spacing: 1px;
  margin: 0 0 4px;
}

.review-title{
  font-weight: 700;
  font-size: 14px;
  margin: 0;
  color: var(--color-text);
}

.review-meta,
.review-specs{
  font-size: 12.5px;
  color: var(--color-muted);
  margin: 10px 0 0;
}

.review-text{
  font-size: 14px;
  margin: 12px 0 0;
  color: var(--color-text);
}

.review-photo{
  width: 120px;
  height: 120px;
  object-fit: cover;
  border-radius: 8px;
  margin-top: 12px;
}

.review-photos{ gap: 10px; flex-wrap: wrap; }

/* ===== Footer ===== */
.site-footer{
  background: var(--color-primary);
  color: rgba(255,255,255,0.85);
  padding: 26px 0;
}

.footer-inner{ gap: 12px; }

.footer-brand{
  font-weight: 700;
  color: #ffffff;
  font-size: 16px;
  margin: 0;
}

.footer-links{ gap: 16px; justify-content: center; }

.footer-links a{
  font-size: 12.5px;
  color: rgba(255,255,255,0.85);
}

.footer-links a:hover{ text-decoration: underline; }

/* ===== Mobile-first base layout (stack), desktop two columns ===== */
.product-card{
  display:flex;
  flex-direction: column;
}

@media (min-width: 768px){
  .product-card{ flex-direction: row; align-items: flex-start; }
}

.review-top{ display:flex; }
.gallery-thumbs{ display:flex; }
.footer-inner{ display:flex; flex-direction: column; align-items:center; text-align:center; }
.footer-links{ display:flex; flex-wrap: wrap; }
.review-photos{ display:flex; }

.cta-button{ display:inline-block; }