*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;scroll-behavior:smooth}
body{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;
  color:#202223;background:#fff;line-height:1.5;min-height:100vh;
  display:flex;flex-direction:column;
}

a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.container--detail{padding-top:24px;padding-bottom:64px}

/* Header */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.92);backdrop-filter:blur(12px);
  border-bottom:1px solid #e1e3e5;
}
.site-header__inner{
  max-width:1200px;margin:0 auto;padding:0 24px;height:64px;
  display:flex;align-items:center;gap:24px;
}
.site-logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:15px;color:#202223;flex-shrink:0}
.site-logo__mark{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(135deg,#667eea,#764ba2);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;
}
.site-nav{display:flex;gap:4px;flex:1;overflow-x:auto}
.site-nav__link{
  padding:8px 12px;border-radius:8px;font-size:13px;font-weight:500;color:#6d7175;white-space:nowrap;
}
.site-nav__link:hover{background:#f6f6f7;color:#202223}
.site-header__actions{display:flex;gap:8px;flex-shrink:0}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:10px 18px;border-radius:10px;font-size:14px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:.15s;white-space:nowrap;
}
.btn-primary{background:#008060;color:#fff;border-color:#008060}
.btn-primary:hover{background:#006e52}
.btn-secondary{background:#fff;color:#202223;border-color:#c9cccf}
.btn-secondary:hover{background:#f6f6f7}
.btn-ghost{background:transparent;color:#202223;border-color:transparent}
.btn-ghost:hover{background:#f6f6f7}
.btn-sm{padding:7px 14px;font-size:13px;border-radius:8px}
.btn-lg{padding:14px 20px;width:100%;font-size:15px}

/* Hero */
.hero{
  background:linear-gradient(160deg,#0f172a 0%,#1e293b 40%,#334155 100%);
  color:#fff;padding:56px 24px 48px;
}
.hero__content{max-width:1200px;margin:0 auto}
.hero__eyebrow{
  font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;
  color:#94a3b8;margin-bottom:12px;
}
.hero h1{font-size:clamp(28px,5vw,40px);font-weight:700;margin-bottom:12px;letter-spacing:-.02em}
.hero__lead{font-size:16px;color:#cbd5e1;max-width:640px;line-height:1.65}

.site-main{flex:1}

/* Toolbar */
.toolbar{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;
  padding:28px 0 20px;
}
.search-box{position:relative;flex:1;min-width:220px;max-width:360px}
.search-box i{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:#8c9196;font-size:18px}
.search-box input{
  width:100%;padding:11px 14px 11px 42px;border:1px solid #c9cccf;border-radius:10px;
  font-size:14px;font-family:inherit;outline:none;
}
.search-box input:focus{border-color:#005bd3;box-shadow:0 0 0 2px rgba(0,91,211,.12)}
.filter-pills{display:flex;flex-wrap:wrap;gap:8px}
.filter-pill{
  padding:8px 14px;border-radius:100px;border:1px solid #e1e3e5;
  font-size:13px;font-weight:500;color:#202223;background:#fff;
}
.filter-pill:hover{border-color:#005bd3;color:#005bd3}
.filter-pill.is-active{background:#202223;border-color:#202223;color:#fff}
.toolbar__count{font-size:13px;color:#6d7175;margin-left:auto}

/* Grid */
.theme-grid{
  display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
  gap:24px;padding-bottom:64px;
}
.theme-card{
  border:1px solid #e1e3e5;border-radius:16px;overflow:hidden;background:#fff;
  display:flex;flex-direction:column;transition:box-shadow .2s,transform .2s;
}
.theme-card:hover{box-shadow:0 12px 32px rgba(0,0,0,.08);transform:translateY(-2px)}
.theme-card__link{display:block;color:inherit}
.theme-card__preview{aspect-ratio:4/3;overflow:hidden;background:#f3f4f6;position:relative}
.theme-card__preview img{width:100%;height:100%;object-fit:cover}
.theme-card__body{padding:16px 18px 12px}
.theme-card__name{font-size:16px;font-weight:700;margin-bottom:4px}
.theme-card__meta{font-size:13px;color:#6d7175}
.theme-card__actions{
  display:flex;gap:8px;padding:0 18px 18px;margin-top:auto;
}
.theme-card__actions .btn{flex:1}

.badge{
  position:absolute;top:12px;left:12px;
  font-size:11px;font-weight:700;padding:5px 10px;border-radius:100px;
}
.badge--free{background:#008060;color:#fff}
.badge--paid{background:#b45309;color:#fff}
.badge--lg{position:static;display:inline-block;margin-bottom:12px}

/* Detail */
.back-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;color:#6d7175;
  margin-bottom:24px;
}
.back-link:hover{color:#202223}
.detail-layout{display:grid;grid-template-columns:1fr 400px;gap:40px;align-items:start}
@media(max-width:900px){.detail-layout{grid-template-columns:1fr}}
.detail-preview{border-radius:16px;overflow:hidden;border:1px solid #e1e3e5;background:#f9fafb}
.detail-preview img{width:100%}
.detail-panel{
  background:#fff;border:1px solid #e1e3e5;border-radius:16px;padding:28px;
  position:sticky;top:88px;
}
.detail-panel h1{font-size:26px;font-weight:700;margin-bottom:6px;letter-spacing:-.02em}
.detail-author{font-size:14px;color:#6d7175;margin-bottom:16px}
.detail-desc{font-size:15px;line-height:1.65;color:#374151;margin-bottom:20px}
.detail-meta{display:grid;gap:10px;margin-bottom:24px;padding-bottom:24px;border-bottom:1px solid #e1e3e5}
.detail-meta div{display:flex;justify-content:space-between;font-size:14px}
.detail-meta dt{color:#6d7175}
.detail-meta dd{font-weight:600}
.detail-features{margin-bottom:24px}
.detail-features h3{
  font-size:11px;font-weight:700;text-transform:uppercase;letter-spacing:.06em;
  color:#6d7175;margin-bottom:10px;
}
.detail-features ul{list-style:none}
.detail-features li{
  display:flex;align-items:center;gap:8px;font-size:14px;padding:6px 0;
}
.detail-features li i{color:#008060;font-size:18px}
.detail-actions{display:flex;flex-direction:column;gap:10px}
.detail-hint{font-size:12px;color:#6d7175;line-height:1.5;margin-top:4px}

/* Empty / error */
.empty-state{text-align:center;padding:80px 24px;color:#6d7175}
.empty-state i{font-size:56px;color:#d1d5db;display:block;margin-bottom:16px}
.empty-state h2{font-size:20px;color:#202223;margin-bottom:8px}
.empty-state p{margin-bottom:20px}

/* Footer */
.site-footer{background:#f6f6f7;border-top:1px solid #e1e3e5;margin-top:auto}
.site-footer__inner{max-width:1200px;margin:0 auto;padding:40px 24px}
.site-footer__brand strong{display:block;font-size:15px;margin-bottom:6px}
.site-footer__brand p{font-size:13px;color:#6d7175;max-width:360px}
.site-footer__links{display:flex;flex-wrap:wrap;gap:16px;margin:20px 0}
.site-footer__links a{font-size:13px;color:#005bd3}
.site-footer__links a:hover{text-decoration:underline}
.site-footer__copy{font-size:12px;color:#8c9196}

@media(max-width:768px){
  .site-nav{display:none}
  .site-header__actions .btn-ghost{display:none}
}