/* ============================================
   ERYTHROXYLUM SHOP — Light theme
   ============================================ */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#f5f0ea;--bg-card:#faf7f2;--header:#f5f0ea;
  --accent:#7c3aed;--accent-hover:#6d28d9;--accent-light:rgba(124,58,237,.08);
  --accent-gradient:linear-gradient(135deg,#7c3aed,#a78bfa);
  --accent2:#a78bfa;--accent3:#c4b5fd;
  --text:#1f1f2e;--text-sec:#4a4a5e;--text-muted:#8a8a9e;
  --border:#e0d8d0;--border-light:#ede8e2;
  --success:#10b981;--danger:#ef4444;
  --shadow-sm:0 2px 8px rgba(0,0,0,.04);
  --shadow-md:0 4px 20px rgba(0,0,0,.06);
  --shadow-lg:0 8px 32px rgba(0,0,0,.1);
  --shadow-xl:0 16px 48px rgba(0,0,0,.12);
  --shadow-accent:0 4px 20px rgba(124,58,237,.25);
  --radius:12px;--radius-sm:8px;--radius-lg:16px;
  --font:'Inter',system-ui,-apple-system,sans-serif;
  --tr:0.25s cubic-bezier(0.4,0,0.2,1);
}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none;transition:color var(--tr)}
a:hover{color:var(--accent-hover)}
img{max-width:100%;height:auto}
.container{max-width:1200px;margin:0 auto;padding:0 24px}

.header{background:var(--header);position:sticky;top:0;z-index:100;box-shadow:0 4px 24px rgba(0,0,0,.06);border-bottom:1px solid var(--border-light)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;max-width:1200px;margin:0 auto;padding:0 24px;gap:32px}
.logo{display:flex;align-items:center;gap:10px;font-size:1.35rem;font-weight:800;color:var(--text);flex-shrink:0;letter-spacing:-.5px}
.logo span{color:var(--accent)}
.logo-icon{font-size:1.8rem;line-height:1}
nav{display:flex;gap:4px;align-items:center}
nav a{padding:10px 18px;border-radius:10px;font-size:.9rem;font-weight:600;color:var(--text-sec);transition:all var(--tr);white-space:nowrap}
nav a:hover{color:var(--accent);background:var(--accent-light);transform:translateY(-1px)}
nav a.active{color:#fff;background:var(--accent-gradient);box-shadow:0 4px 14px rgba(124,58,237,.3)}
.cart-btn{position:relative;padding:10px 22px!important;border-radius:10px;font-weight:700;display:flex;align-items:center;gap:8px;background:var(--accent-light)!important;color:var(--accent)!important;margin-left:8px}
.cart-btn:hover{background:rgba(124,58,237,.15)!important;transform:translateY(-1px)}
.cart-btn.active{background:var(--accent-gradient)!important;color:#fff!important}
.cart-count{background:var(--danger);color:#fff;border-radius:50%;min-width:20px;height:20px;display:flex;align-items:center;justify-content:center;font-size:.7rem;font-weight:700;position:absolute;top:-4px;right:-4px;box-shadow:0 2px 8px rgba(239,68,68,.3)}
.cart-count.hidden{display:none}

.hero{padding:72px 0 56px;text-align:center;background:linear-gradient(180deg,rgba(124,58,237,.06) 0%,transparent 100%);position:relative;overflow:hidden}
.hero::before{content:'';position:absolute;top:-50%;left:50%;transform:translateX(-50%);width:600px;height:600px;background:radial-gradient(circle,rgba(124,58,237,.08) 0%,transparent 70%);pointer-events:none}
.hero h1{font-size:2.8rem;font-weight:800;margin-bottom:12px;background:linear-gradient(135deg,var(--accent),var(--accent2),#6d28d9);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;line-height:1.2}
.hero p{color:var(--text-sec);font-size:1.1rem;max-width:580px;margin:0 auto 28px;line-height:1.6}
.hero-search{display:flex;max-width:480px;margin:0 auto;gap:8px}
.hero-search input{flex:1;padding:14px 20px;border-radius:var(--radius);border:2px solid var(--border);background:var(--bg-card);color:var(--text);font-size:.95rem;outline:none;transition:all var(--tr);font-family:var(--font)}
.hero-search input:focus{border-color:var(--accent);box-shadow:0 0 0 4px rgba(124,58,237,.1)}
.hero-search button{padding:14px 28px;border-radius:var(--radius);background:var(--accent-gradient);color:#fff;border:none;font-weight:700;font-size:.95rem;cursor:pointer;transition:all var(--tr);box-shadow:var(--shadow-accent);font-family:var(--font)}
.hero-search button:hover{transform:translateY(-2px);box-shadow:0 6px 24px rgba(124,58,237,.35)}

.categories{padding:48px 0}
.section-title{font-size:1.7rem;font-weight:700;margin-bottom:28px;text-align:center;color:var(--text)}
.cat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.cat-card{background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:36px 24px 28px;text-align:center;cursor:pointer;transition:all var(--tr);position:relative;overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;align-items:center}
.cat-card::before{content:'';position:absolute;top:0;left:0;right:0;height:4px;background:var(--accent-gradient);transform:scaleX(0);transition:transform var(--tr);transform-origin:left}
.cat-card:hover{transform:translateY(-6px);border-color:var(--accent);box-shadow:var(--shadow-lg)}
.cat-card:hover::before{transform:scaleX(1)}
.cat-icon{font-size:2.8rem;margin-bottom:16px;display:block;line-height:1}
.cat-card h3{font-size:1.15rem;font-weight:700;margin-bottom:10px;color:var(--text)}
.cat-card p{color:var(--text-sec);font-size:.88rem;line-height:1.5;margin-bottom:16px;flex:1}
.cat-count{display:inline-block;padding:4px 14px;background:var(--accent-light);color:var(--accent);border-radius:20px;font-size:.78rem;font-weight:700}

.products-section{padding:40px 0 72px}
.products-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:24px}
.product-card{background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-lg);overflow:hidden;transition:all var(--tr);cursor:pointer;display:flex;flex-direction:column;box-shadow:var(--shadow-sm)}
.product-card:hover{transform:translateY(-6px);border-color:var(--accent);box-shadow:var(--shadow-lg)}
.product-img{width:100%;aspect-ratio:1;object-fit:cover;background:linear-gradient(135deg,#f0ebe5,#e8e0d8);border-bottom:1px solid var(--border-light)}
.product-card:hover .product-img{transform:scale(1.03)}
.product-info{padding:20px 20px 22px;flex:1;display:flex;flex-direction:column}
.product-cat{font-size:.73rem;color:var(--accent);font-weight:700;text-transform:uppercase;letter-spacing:.8px;margin-bottom:8px}
.product-name{font-size:.95rem;font-weight:600;color:var(--text);margin-bottom:8px;line-height:1.4;flex:1;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.product-desc-short{color:var(--text-sec);font-size:.82rem;margin-bottom:14px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.product-bottom{display:flex;align-items:center;padding-top:14px;border-top:1px solid var(--border-light);gap:8px}
.product-price{font-size:1.2rem;font-weight:800;color:var(--text);white-space:nowrap;flex-shrink:0;min-width:80px;text-align:left}
.add-cart-btn{padding:10px 20px;border-radius:var(--radius-sm);background:var(--accent-gradient);color:#fff;border:none;font-weight:700;font-size:.83rem;cursor:pointer;transition:all var(--tr);white-space:nowrap;box-shadow:0 3px 12px rgba(124,58,237,.2);font-family:var(--font);flex:1;max-width:180px;text-align:center}
.add-cart-btn:hover{transform:translateY(-2px) scale(1.02);box-shadow:0 5px 20px rgba(124,58,237,.3)}
.add-cart-btn:active{transform:translateY(0) scale(.98)}
.add-cart-btn.added{background:linear-gradient(135deg,#10b981,#059669);box-shadow:0 3px 12px rgba(16,185,129,.3)}

.page-header{padding:32px 0 20px;border-bottom:1px solid var(--border-light);margin-bottom:32px}
.breadcrumbs{display:flex;gap:8px;align-items:center;margin-bottom:12px;font-size:.88rem;color:var(--text-muted);flex-wrap:wrap}
.breadcrumbs a{color:var(--text-muted)}
.breadcrumbs a:hover{color:var(--accent)}
.page-header h1{font-size:2rem;font-weight:800;margin-bottom:6px}
.page-header p{color:var(--text-sec);font-size:.95rem}
.filter-bar{display:flex;gap:12px;margin-bottom:28px;flex-wrap:wrap;align-items:center}
.filter-bar select{padding:10px 16px;border-radius:var(--radius-sm);border:2px solid var(--border);background:var(--bg-card);color:var(--text);font-size:.88rem;font-weight:500;cursor:pointer;outline:none;transition:all var(--tr);font-family:var(--font);appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='%234a4a5e'%3E%3Cpath d='M1 1l5 5 5-5'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 14px center;padding-right:36px}
.filter-bar select:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(124,58,237,.1)}
.results-count{color:var(--text-muted);font-size:.85rem;margin-left:auto;font-weight:500}

.product-detail{padding:32px 0 64px}
.product-detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.product-detail-img{width:100%;border-radius:var(--radius-lg);border:1px solid var(--border-light);background:linear-gradient(135deg,#f0ebe5,#e8e0d8);box-shadow:var(--shadow-md)}
.product-detail-info h1{font-size:1.8rem;font-weight:800;margin-bottom:8px;line-height:1.3}
.product-detail-cat{color:var(--accent);font-weight:700;font-size:.85rem;margin-bottom:14px;display:block}
.product-detail-price{font-size:2rem;font-weight:800;color:var(--text);margin-bottom:20px;padding-bottom:20px;border-bottom:1px solid var(--border-light)}
.product-detail-desc{color:var(--text-sec);line-height:1.8;margin-bottom:28px;font-size:.95rem}
.detail-add-btn{display:flex;align-items:center;gap:16px}
.detail-add-btn button{padding:16px 32px;border-radius:var(--radius);background:var(--accent-gradient);color:#fff;border:none;font-size:1rem;font-weight:700;cursor:pointer;transition:all var(--tr);box-shadow:var(--shadow-accent);font-family:var(--font)}
.detail-add-btn button:hover{transform:translateY(-2px);box-shadow:0 6px 24px rgba(124,58,237,.35)}
.qty-control{display:flex;align-items:center;gap:8px;border:2px solid var(--border);border-radius:var(--radius);padding:4px;background:var(--bg-card)}
.qty-control button{width:38px;height:38px;border:none;background:transparent;color:var(--text);font-size:1.3rem;font-weight:700;cursor:pointer;border-radius:var(--radius-sm);transition:all var(--tr);padding:0;box-shadow:none}
.qty-control button:hover{background:var(--accent-light);color:var(--accent)}
.qty-control span{font-size:1rem;font-weight:700;min-width:36px;text-align:center;color:var(--text)}

/* === SEO TEXT === */
.seo-section{padding:48px 0 24px;background:var(--bg)}
.seo-text{max-width:860px;margin:0 auto}
.seo-text p{color:var(--text-sec);font-size:.9rem;line-height:1.8;margin-bottom:16px}
.seo-keywords{font-size:.8rem!important;color:var(--text-muted)!important;margin-top:20px!important;padding:12px 16px;background:var(--bg-card);border-radius:var(--radius-sm);border:1px solid var(--border-light);line-height:1.6!important}

.cart-page{padding:32px 0 64px}
.cart-empty{text-align:center;padding:80px 20px;color:var(--text-muted)}
.cart-empty .empty-icon{font-size:4rem;margin-bottom:16px;display:block}
.cart-empty h2{color:var(--text);margin-bottom:8px;font-size:1.5rem}
.cart-item{display:flex;gap:20px;align-items:center;padding:20px;background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-lg);margin-bottom:12px;box-shadow:var(--shadow-sm)}
.cart-item:hover{border-color:var(--accent);box-shadow:var(--shadow-md)}
.cart-item-img{width:80px;height:80px;border-radius:var(--radius-sm);object-fit:cover;background:linear-gradient(135deg,#f0ebe5,#e8e0d8);flex-shrink:0}
.cart-item-info{flex:1}
.cart-item-name{font-weight:600;margin-bottom:4px;font-size:.95rem}
.cart-item-cat{font-size:.8rem;color:var(--text-muted)}
.cart-item-qty{display:flex;align-items:center;gap:6px}
.cart-item-qty button{width:32px;height:32px;border:2px solid var(--border);background:var(--bg-card);color:var(--text);border-radius:var(--radius-sm);cursor:pointer;font-size:1rem;font-weight:700;transition:all var(--tr)}
.cart-item-qty button:hover{border-color:var(--accent);background:var(--accent-light);color:var(--accent)}
.cart-item-qty span{font-weight:700;min-width:24px;text-align:center}
.cart-item-price{font-weight:800;font-size:1.1rem;color:var(--text);min-width:100px;text-align:right}
.cart-item-remove{background:none;border:none;color:var(--text-muted);cursor:pointer;font-size:1.2rem;padding:8px;border-radius:var(--radius-sm);transition:all var(--tr)}
.cart-item-remove:hover{color:var(--danger);background:rgba(239,68,68,.08)}
.cart-summary{margin-top:28px;padding:28px 32px;background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-lg);box-shadow:var(--shadow-sm)}
.cart-total{display:flex;justify-content:space-between;font-size:1.3rem;font-weight:800;margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid var(--border-light)}
.cart-total span:last-child{color:var(--accent)}
.checkout-btn{width:100%;padding:16px;border-radius:var(--radius);background:var(--accent-gradient);color:#fff;border:none;font-size:1.05rem;font-weight:700;cursor:pointer;transition:all var(--tr);text-align:center;display:block;text-decoration:none;box-shadow:var(--shadow-accent);font-family:var(--font)}
.checkout-btn:hover{transform:translateY(-2px);box-shadow:0 6px 28px rgba(124,58,237,.4);color:#fff}

.checkout-page{padding:0 0 64px;max-width:700px;margin:0 auto}
.checkout-form{background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:32px;box-shadow:var(--shadow-sm)}
.form-group{margin-bottom:20px}
.form-group label{display:block;font-weight:600;margin-bottom:8px;color:var(--text);font-size:.9rem}
.form-group input,.form-group textarea,.form-group select{width:100%;padding:14px 16px;border-radius:var(--radius-sm);border:2px solid var(--border);background:var(--bg);color:var(--text);font-size:.95rem;outline:none;transition:all var(--tr);font-family:var(--font)}
.form-group input:focus,.form-group textarea:focus{border-color:var(--accent);box-shadow:0 0 0 4px rgba(124,58,237,.1)}
.form-group textarea{resize:vertical;min-height:100px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.order-items{margin-bottom:24px;padding:20px;background:var(--bg);border-radius:var(--radius-sm);border:1px solid var(--border-light)}
.order-item{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--border-light);font-size:.9rem}
.order-item:last-child{border:none}
.submit-order{width:100%;padding:16px;border-radius:var(--radius);background:linear-gradient(135deg,#10b981,#059669);color:#fff;border:none;font-size:1.05rem;font-weight:700;cursor:pointer;transition:all var(--tr);box-shadow:0 4px 20px rgba(16,185,129,.3);font-family:var(--font)}
.submit-order:hover{transform:translateY(-2px);box-shadow:0 6px 28px rgba(16,185,129,.4)}
.submit-order:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

.footer{border-top:1px solid var(--border-light);padding:32px 0;margin-top:64px;text-align:center;color:var(--text-muted);font-size:.88rem}

.toast{position:fixed;bottom:30px;right:30px;background:var(--bg-card);border:1px solid var(--accent);border-radius:var(--radius);padding:16px 24px;color:var(--text);font-weight:600;z-index:1000;transform:translateY(100px);opacity:0;transition:all var(--tr);box-shadow:var(--shadow-xl)}
.toast.show{transform:translateY(0);opacity:1}

/* === INSTRUCTIONS SECTION === */
.info-section{padding:48px 0 64px;background:var(--bg)}
.info-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:24px}
.info-card{background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:28px 24px;text-align:center;transition:all var(--tr);box-shadow:var(--shadow-sm)}
.info-card:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:var(--shadow-lg)}
.info-icon{font-size:2.5rem;display:block;margin-bottom:14px}
.info-card h3{font-size:1.05rem;font-weight:700;margin-bottom:10px;color:var(--text)}
.info-card p{color:var(--text-sec);font-size:.85rem;line-height:1.6}

/* === FAQ SECTION === */
.faq-section{padding:48px 0 64px;background:linear-gradient(180deg,transparent,rgba(124,58,237,.03))}
.faq-list{max-width:760px;margin:0 auto}
.faq-item{background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-lg);margin-bottom:12px;overflow:hidden;transition:box-shadow var(--tr);box-shadow:var(--shadow-sm)}
.faq-item:hover{border-color:var(--accent);box-shadow:var(--shadow-md)}
.faq-question{display:flex;justify-content:space-between;align-items:center;padding:20px 24px;cursor:pointer;font-weight:600;font-size:.98rem;color:var(--text);transition:color var(--tr);user-select:none;gap:16px}
.faq-question:hover{color:var(--accent)}
.faq-arrow{font-size:1rem;transition:transform var(--tr);color:var(--text-muted);flex-shrink:0}
.faq-item.open .faq-arrow{transform:rotate(180deg);color:var(--accent)}
.faq-item.open .faq-question{color:var(--accent)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height var(--tr),padding var(--tr),opacity var(--tr);opacity:0}
.faq-item.open .faq-answer{max-height:400px;opacity:1;padding:0 24px 20px}
.faq-answer p{color:var(--text-sec);font-size:.9rem;line-height:1.7}

/* === GUARANTEES SECTION === */
.guarantees-section{padding:48px 0 64px;background:var(--bg)}
.guarantees-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:24px}
.guarantee-card{background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:28px 24px;text-align:center;transition:all var(--tr);box-shadow:var(--shadow-sm)}
.guarantee-card:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:var(--shadow-lg)}
.guarantee-icon{font-size:2.5rem;display:block;margin-bottom:14px}
.guarantee-card h3{font-size:1.05rem;font-weight:700;margin-bottom:10px;color:var(--text)}
.guarantee-card p{color:var(--text-sec);font-size:.85rem;line-height:1.6}

/* === REVIEWS SECTION === */
.reviews-section{padding:48px 0 72px;background:linear-gradient(180deg,transparent,rgba(124,58,237,.03))}
.reviews-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:24px}
.review-card{background:var(--bg-card);border:1px solid var(--border-light);border-radius:var(--radius-lg);padding:28px 24px;box-shadow:var(--shadow-sm);transition:all var(--tr);display:flex;flex-direction:column}
.review-card:hover{transform:translateY(-4px);border-color:var(--accent);box-shadow:var(--shadow-lg)}
.review-stars{font-size:1.2rem;color:#f59e0b;letter-spacing:2px;margin-bottom:14px}
.review-text{color:var(--text-sec);font-size:.9rem;line-height:1.7;flex:1;margin-bottom:16px;font-style:italic}
.review-author{color:var(--text-muted);font-size:.82rem;font-weight:500;border-top:1px solid var(--border-light);padding-top:14px}

@media(max-width:900px){.product-detail-grid{grid-template-columns:1fr;gap:32px}}
@media(max-width:768px){
  .hero h1{font-size:2rem}.form-row{grid-template-columns:1fr}.cart-item{flex-wrap:wrap;gap:14px}
  nav{gap:2px;overflow-x:auto;-webkit-overflow-scrolling:touch}
  nav a{padding:8px 12px;font-size:.8rem;white-space:nowrap}
  .header-inner{height:64px;gap:16px;padding:0 16px}
  .logo{font-size:1.15rem}.hero-search{flex-direction:column}.hero{padding:48px 0 36px}
  .products-grid{grid-template-columns:repeat(auto-fill,minmax(200px,1fr));gap:16px}
  .cat-grid{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:16px}
}
@media(max-width:480px){
  .products-grid{grid-template-columns:1fr 1fr;gap:12px}.cat-grid{grid-template-columns:1fr}
  .cart-item{flex-direction:column;text-align:center}.cart-item-price{text-align:center}
  .product-info{padding:14px}.product-bottom{flex-direction:column;gap:10px}.add-cart-btn{width:100%}
  .container{padding:0 14px}.hero h1{font-size:1.6rem}.page-header h1{font-size:1.5rem}
}