/* ─── Imports ─── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

/* ─── Reset & Tokens ─── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

:root{
  --white:#fff;
  --black:#0a0a0a;

  --gray-50:#f8f9fa;
  --gray-100:#f1f3f5;
  --gray-200:#e9ecef;
  --gray-300:#dee2e6;
  --gray-400:#ced4da;
  --gray-500:#adb5bd;
  --gray-600:#868e96;
  --gray-700:#495057;
  --gray-800:#343a40;
  --gray-900:#212529;

  --accent:#3b5bdb;
  --accent-hover:#364fc7;
  --accent-subtle:rgba(59,91,219,.06);

  --bg:var(--gray-50);
  --card:var(--white);
  --text:var(--gray-900);
  --text-secondary:var(--gray-600);
  --text-tertiary:var(--gray-400);
  --border:var(--gray-200);
  --border-light:var(--gray-100);

  --radius-sm:6px;
  --radius:10px;
  --radius-md:14px;
  --radius-lg:18px;

  --shadow-sm:0 1px 2px rgba(0,0,0,.04);
  --shadow:0 1px 3px rgba(0,0,0,.06),0 1px 2px rgba(0,0,0,.04);
  --shadow-md:0 4px 12px rgba(0,0,0,.06);
  --shadow-lg:0 8px 24px rgba(0,0,0,.08);
  --shadow-xl:0 16px 40px rgba(0,0,0,.1);

  --ease:200ms cubic-bezier(.4,0,.2,1);
  --ease-out:300ms cubic-bezier(0,0,.2,1);
}

html{scroll-behavior:smooth;-webkit-font-smoothing:antialiased}
body{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.6;
}

/* ─── Typography ─── */
h1,h2,h3,h4{font-weight:600;letter-spacing:-.01em;line-height:1.2}
::selection{background:var(--accent);color:#fff}

/* ─── Scrollbar ─── */
::-webkit-scrollbar{width:6px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--gray-300);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:var(--gray-400)}

/* ─── Animations ─── */
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes fadeUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeScale{from{opacity:0;transform:scale(.96)translateY(8px)}to{opacity:1;transform:scale(1)translateY(0)}}
.reveal{animation:fadeUp .6s ease both}

/* ─── Nav ─── */
nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:16px 32px;
  max-width:1280px;
  margin:0 auto;
  width:100%;
  position:relative;
  z-index:100;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:1.05rem;
  font-weight:700;
  letter-spacing:-.02em;
  text-decoration:none;
  color:var(--text);
}
.logo-img{width:30px;height:30px;border-radius:50%;object-fit:cover}
.nav-links{display:flex;align-items:center;gap:24px}
.nav-links a{
  color:var(--text-secondary);
  font-size:.875rem;
  font-weight:500;
  transition:color var(--ease);
  text-decoration:none;
}
.nav-links a:hover{color:var(--text)}
.nav-links a.active{color:var(--text)}

/* ─── Hero ─── */
.hero{
  padding:96px 32px 80px;
  text-align:center;
  position:relative;
  overflow:hidden;
}
.hero::before{
  content:'';
  position:absolute;
  inset:0;
  background:radial-gradient(ellipse 800px 500px at 50% -30%,rgba(59,91,219,.06),transparent);
  pointer-events:none;
}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:100px;
  font-size:.75rem;
  font-weight:600;
  color:var(--accent);
  background:var(--accent-subtle);
  margin-bottom:20px;
  border:1px solid rgba(59,91,219,.1);
  text-transform:uppercase;
  letter-spacing:.04em;
}
.hero h1{
  font-size:clamp(2.25rem,5.5vw,3.75rem);
  font-weight:700;
  letter-spacing:-.03em;
  line-height:1.1;
  max-width:700px;
  margin:0 auto;
  color:var(--black);
}
.hero h1 em{font-style:normal;background:linear-gradient(135deg,var(--accent),#845ef7);-webkit-background-clip:text;-webkit-text-fill-color:transparent}
.hero p{
  font-size:1.1rem;
  color:var(--text-secondary);
  max-width:480px;
  margin:16px auto 0;
  line-height:1.65;
}
.hero-actions{display:flex;align-items:center;justify-content:center;gap:10px;margin-top:28px;flex-wrap:wrap}

/* ─── Buttons ─── */
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:11px 22px;
  border-radius:var(--radius);
  font-size:.875rem;
  font-weight:600;
  transition:all var(--ease);
  cursor:pointer;
  border:none;
  text-decoration:none;
  line-height:1;
}
.btn-primary{
  background:var(--black);
  color:var(--white);
  box-shadow:var(--shadow-sm);
}
.btn-primary:hover{
  background:#1a1a1a;
  transform:translateY(-1px);
  box-shadow:var(--shadow-md);
}
.btn-outline{
  background:transparent;
  color:var(--text);
  border:1.5px solid var(--border);
}
.btn-outline:hover{
  background:var(--white);
  border-color:var(--gray-300);
}
.btn-ghost{
  background:transparent;
  color:var(--text-secondary);
  padding:11px 18px;
}
.btn-ghost:hover{color:var(--text);background:var(--gray-50)}

/* ─── Container ─── */
.container{max-width:1280px;margin:0 auto;padding:0 32px;width:100%}

/* ─── Sections ─── */
.section{padding:56px 0}
.section-header{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  margin-bottom:28px;
}
.section-header h2{font-size:1.35rem;font-weight:700}
.section-header p{color:var(--text-secondary);font-size:.85rem;margin-top:3px}

/* ─── Product Grid ─── */
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:20px}

/* ─── Product Card ─── */
.card{
  background:var(--card);
  border-radius:var(--radius-md);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  border:1px solid var(--border);
  cursor:pointer;
  transition:all var(--ease-out);
}
.card:hover{
  box-shadow:var(--shadow-xl);
  transform:translateY(-5px);
  border-color:transparent;
}
.card-image{
  aspect-ratio:1;
  overflow:hidden;
  background:var(--gray-100);
  position:relative;
}
.card-image img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .55s ease;
}
.card:hover .card-image img{transform:scale(1.07)}
.card-badge{
  position:absolute;
  top:10px;left:10px;
  background:rgba(0,0,0,.65);
  backdrop-filter:blur(4px);
  padding:3px 9px;
  border-radius:5px;
  font-size:.65rem;
  font-weight:600;
  color:#fff;
  letter-spacing:.02em;
}
.card-body{padding:14px 16px 16px}
.card-category{
  font-size:.65rem;
  text-transform:uppercase;
  letter-spacing:.07em;
  font-weight:600;
  color:var(--text-tertiary);
}
.card-body h3{
  font-size:.875rem;
  font-weight:600;
  margin-top:4px;
  display:-webkit-box;
  -webkit-line-clamp:1;
  -webkit-box-orient:vertical;
  overflow:hidden;
  color:var(--black);
}
.card-price{font-size:1.05rem;font-weight:700;margin-top:7px;color:var(--accent)}

/* ─── Category Cards ─── */
.categories-strip{display:grid;grid-template-columns:repeat(auto-fill,minmax(190px,1fr));gap:14px}
.cat-card{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding:28px 16px;border-radius:var(--radius-md);color:#fff;text-decoration:none;
  transition:all var(--ease-out);position:relative;overflow:hidden;min-height:120px;
}
.cat-card::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(0,0,0,.15));
  pointer-events:none;
}
.cat-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg)}
.cat-card-icon{position:relative;z-index:1;margin-bottom:6px;opacity:.9}
.cat-card-name{font-size:.9rem;font-weight:600;position:relative;z-index:1}
.cat-card-count{font-size:.75rem;opacity:.75;margin-top:1px;position:relative;z-index:1}

/* ─── Features Strip ─── */
.features-strip{
  display:grid;grid-template-columns:repeat(3,1fr);
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden;
}
.feature-item{
  padding:28px 24px;text-align:center;border-right:1px solid var(--border);
}
.feature-item:last-child{border-right:none}
.feature-item svg{color:var(--accent);margin-bottom:10px;opacity:.8}
.feature-item h4{font-size:.85rem;font-weight:600}
.feature-item p{font-size:.8rem;color:var(--text-secondary);margin-top:3px}

/* ─── Pagination ─── */
.pagination{display:flex;align-items:center;justify-content:center;gap:5px;margin-top:36px}
.page-btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:34px;height:34px;padding:0 9px;
  border:1px solid var(--border);border-radius:var(--radius-sm);
  background:var(--card);cursor:pointer;font-size:.825rem;font-weight:500;
  color:var(--text);transition:all var(--ease);
}
.page-btn:hover:not(:disabled):not(.active){border-color:var(--accent);color:var(--accent)}
.page-btn.active{background:var(--black);border-color:var(--black);color:var(--white)}
.page-btn:disabled{opacity:.35;cursor:not-allowed}
.page-dots{color:var(--gray-400);font-size:.8rem;padding:0 3px;user-select:none}

/* ─── Product Detail ─── */
.detail-layout{display:grid;grid-template-columns:1fr 1fr;gap:48px;padding:44px 0;align-items:start}
.detail-image{
  border-radius:var(--radius-md);overflow:hidden;background:var(--gray-100);
  aspect-ratio:1;position:sticky;top:24px;
}
.detail-image img{width:100%;height:100%;object-fit:cover}
.detail-breadcrumb{
  display:flex;align-items:center;gap:8px;font-size:.825rem;color:var(--text-secondary);margin-bottom:14px;
}
.detail-breadcrumb a{color:var(--text-secondary);text-decoration:none;transition:color var(--ease)}
.detail-breadcrumb a:hover{color:var(--text)}
.detail-breadcrumb .sep{color:var(--gray-300)}
.detail-category{
  font-size:.7rem;text-transform:uppercase;letter-spacing:.07em;font-weight:600;color:var(--accent);
}
.detail h1{font-size:1.65rem;font-weight:700;margin-top:3px;letter-spacing:-.02em;color:var(--black)}
.detail-price{font-size:1.85rem;font-weight:700;margin:18px 0;color:var(--accent)}
.detail-desc{color:var(--text-secondary);line-height:1.8;font-size:.95rem}
.detail-meta{margin-top:22px;padding-top:22px;border-top:1px solid var(--border);display:flex;gap:32px}
.meta-item label{font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.06em;color:var(--text-secondary);display:block}
.meta-item span{font-size:.9rem;font-weight:500;margin-top:3px;display:block}
.related-section{padding:44px 0 56px}
.related-section h2{font-size:1.2rem;font-weight:700;margin-bottom:24px}

/* ─── Catalog Layout ─── */
.catalog-layout{display:flex;gap:36px;padding:36px 0;align-items:flex-start}
.sidebar{flex:0 0 230px;position:sticky;top:24px}
.sidebar-section{margin-bottom:24px}
.sidebar-label{
  font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.08em;
  color:var(--text-secondary);margin-bottom:10px;
}
.sidebar-label svg{vertical-align:-2px}
.search-input{
  width:100%;padding:9px 12px;
  border:1.5px solid var(--gray-300);border-radius:var(--radius);
  font-size:.85rem;outline:none;transition:all var(--ease);
  background:var(--card);color:var(--text);font-family:inherit;
}
.search-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-subtle)}
.search-input::placeholder{color:var(--gray-400)}
.cat-btn{
  display:flex;align-items:center;justify-content:space-between;
  width:100%;padding:7px 10px 7px 12px;border:none;background:transparent;
  border-left:3px solid transparent;
  cursor:pointer;font-size:.825rem;
  color:var(--text);transition:all var(--ease);text-align:left;font-family:inherit;font-weight:500;
}
.cat-btn:hover{background:var(--gray-100)}
.cat-btn.active{background:var(--accent-subtle);color:var(--accent);font-weight:600;border-left:3px solid var(--accent)}
.cat-count{color:var(--gray-500);font-size:.775rem;font-weight:500}
.cat-btn.active .cat-count{color:var(--accent)}
.sort-select{
  width:100%;padding:9px 10px;border:1.5px solid var(--gray-300);border-radius:var(--radius);
  font-size:.825rem;outline:none;background:var(--card);color:var(--text);
  transition:all var(--ease);cursor:pointer;font-family:inherit;
}
.sort-select:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-subtle)}
.clear-btn{
  width:100%;padding:9px;border:1.5px solid var(--gray-300);border-radius:var(--radius);
  background:transparent;cursor:pointer;font-size:.825rem;font-weight:500;
  color:var(--text-secondary);transition:all var(--ease);font-family:inherit;
}
.clear-btn:hover{border-color:var(--gray-300);color:var(--text);background:var(--card)}
.catalog-main{flex:1;min-width:0}
.catalog-toolbar{
  display:flex;justify-content:space-between;align-items:center;
  margin-bottom:20px;padding-bottom:14px;border-bottom:1px solid var(--border-light);
}
.result-count{font-size:.85rem;color:var(--text-secondary)}
.result-count strong{color:var(--text)}

/* ─── Empty State ─── */
.empty-state{text-align:center;padding:72px 24px}
.empty-state svg{color:var(--gray-300);margin-bottom:14px}
.empty-state h3{font-size:1.05rem;margin-bottom:5px;color:var(--text)}
.empty-state p{color:var(--text-secondary);font-size:.875rem}

/* ─── Footer ─── */
footer{
  border-top:1px solid var(--border);
  padding:36px 32px;
  margin-top:auto;
}
.footer-inner{max-width:1280px;margin:0 auto;display:flex;justify-content:space-between;align-items:center}
footer p{color:var(--text-secondary);font-size:.825rem}

/* ─── Responsive ─── */
@media(max-width:1024px){
  .detail-layout{grid-template-columns:1fr;gap:32px}
  .detail-image{position:static;max-width:500px}
}
@media(max-width:768px){
  .catalog-layout{flex-direction:column}
  .sidebar{flex:none;width:100%;position:static}
  .grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .section{padding:36px 0}
  .hero{padding:60px 24px 48px}
  .container{padding:0 20px}
  nav{padding:14px 20px}
  .features-strip{grid-template-columns:1fr}
  .feature-item{border-right:none;border-bottom:1px solid var(--border)}
  .feature-item:last-child{border-bottom:none}
  .footer-inner{flex-direction:column;gap:10px;text-align:center}
  .categories-strip{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:480px){
  .grid{grid-template-columns:1fr 1fr;gap:10px}
  .card-body{padding:10px 12px 12px}
  .card-body h3{font-size:.8rem}
  .card-price{font-size:.95rem}
  .categories-strip{grid-template-columns:1fr}
  .hero h1{font-size:1.75rem}
}