*{margin:0;padding:0;box-sizing:border-box}
:root{--bg:#0a0a0f;--bg2:#111118;--bg3:#1a1a24;--bg4:#222230;--gold:#D4AF37;--gold2:#F0C90A;--text:#e8e8f0;--text2:#8888a0;--text3:#555568;--border:#2a2a3a;--radius:12px;--radius2:8px;--shadow:0 8px 32px rgba(0,0,0,.4)}
html{scroll-behavior:smooth}
body{font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:var(--bg2)}
::-webkit-scrollbar-thumb{background:var(--bg4);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:var(--text3)}
::selection{background:rgba(212,175,55,.3);color:var(--text)}
/* HEADER */
.site-header{position:sticky;top:0;z-index:100;background:rgba(10,10,15,.85);backdrop-filter:blur(20px);border-bottom:1px solid var(--border)}
.header-inner{max-width:1200px;margin:0 auto;padding:0 24px;height:60px;display:flex;align-items:center;justify-content:space-between}
.logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;letter-spacing:-.3px}
.logo-icon{flex-shrink:0}
.logo-text{color:var(--text)}
.logo-dot{color:var(--gold)}
.main-nav{display:flex;align-items:center;gap:8px}
.nav-link{display:flex;align-items:center;gap:6px;padding:6px 12px;border-radius:var(--radius2);color:var(--text2);font-size:13px;font-weight:500;transition:all .2s}
.nav-link:hover{color:var(--text);background:var(--bg3)}
.nav-github:hover{color:var(--gold)}
/* HERO */
.hero{position:relative;padding:80px 24px 60px;text-align:center;overflow:hidden}
.hero-bg{position:absolute;inset:0;background:radial-gradient(ellipse 80% 60% at 50% 0%,rgba(212,175,55,.06) 0%,transparent 70%);pointer-events:none}
.hero-inner{position:relative;max-width:680px;margin:0 auto}
.hero-badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;background:rgba(212,175,55,.1);border:1px solid rgba(212,175,55,.25);border-radius:100px;color:var(--gold);font-size:12px;font-weight:600;letter-spacing:.5px;margin-bottom:24px}
.hero-title{font-size:clamp(36px,6vw,56px);font-weight:800;letter-spacing:-1.5px;line-height:1.1;margin-bottom:16px;background:linear-gradient(135deg,#fff 40%,var(--gold) 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-subtitle{font-size:16px;color:var(--text2);max-width:520px;margin:0 auto 36px;line-height:1.7}
.hero-search{position:relative;max-width:520px;margin:0 auto 40px}
.hero-search input{width:100%;padding:14px 48px 14px 48px;background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);color:var(--text);font-size:15px;font-family:inherit;outline:none;transition:all .2s}
.hero-search input:focus{border-color:var(--gold);box-shadow:0 0 0 3px rgba(212,175,55,.12)}
.hero-search input::placeholder{color:var(--text3)}
.search-icon{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--text3);pointer-events:none}
.clear-btn{position:absolute;right:12px;top:50%;transform:translateY(-50%);background:none;border:none;color:var(--text3);cursor:pointer;padding:4px;display:flex;align-items:center;justify-content:center;border-radius:4px;transition:color .2s}
.clear-btn:hover{color:var(--text)}
.hero-stats{display:flex;align-items:center;justify-content:center;gap:0}
.stat{padding:0 28px}
.stat-num{font-size:28px;font-weight:800;color:var(--gold);display:block;line-height:1.2}
.stat-label{font-size:12px;color:var(--text3);font-weight:500;letter-spacing:.3px}
.stat-divider{width:1px;height:40px;background:var(--border)}
/* FILTER BAR */
.filter-bar{position:sticky;top:60px;z-index:90;background:rgba(10,10,15,.9);backdrop-filter:blur(16px);border-bottom:1px solid var(--border);padding:12px 24px}
.filter-inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;gap:20px;flex-wrap:wrap}
.filter-group{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.filter-group-right{margin-left:auto}
.filter-label{font-size:12px;color:var(--text3);font-weight:600;letter-spacing:.3px;white-space:nowrap}
.filter-chips{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.chip{padding:5px 12px;background:var(--bg2);border:1px solid var(--border);border-radius:100px;color:var(--text2);font-size:12px;font-weight:500;cursor:pointer;transition:all .15s;white-space:nowrap}
.chip:hover{border-color:var(--gold);color:var(--text)}
.chip.active{background:rgba(212,175,55,.15);border-color:var(--gold);color:var(--gold)}
.sort-group{display:flex;align-items:center;gap:8px}
.sort-group select{padding:5px 10px;background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius2);color:var(--text);font-size:12px;font-family:inherit;cursor:pointer;outline:none}
.sort-group select:focus{border-color:var(--gold)}
/* API GRID */
.api-grid-section{padding:32px 24px 80px;max-width:1200px;margin:0 auto}
.api-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(340px,1fr));gap:16px}
.api-card{background:var(--bg2);border:1px solid var(--border);border-radius:var(--radius);padding:20px;transition:all .2s;cursor:pointer;position:relative;overflow:hidden}
.api-card::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,var(--gold),transparent);opacity:0;transition:opacity .2s}
.api-card:hover{border-color:rgba(212,175,55,.3);transform:translateY(-2px);box-shadow:0 12px 40px rgba(0,0,0,.3)}
.api-card:hover::before{opacity:1}
.api-card-header{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:12px}
.api-card-title{display:flex;align-items:center;gap:10px}
.api-icon{width:36px;height:36px;border-radius:var(--radius2);display:flex;align-items:center;justify-content:center;flex-shrink:0}
.api-icon svg{width:18px;height:18px}
.api-name{font-size:15px;font-weight:700;color:var(--text);line-height:1.3}
.api-name-en{font-size:11px;color:var(--text3);font-weight:400;margin-top:1px}
.api-badges{display:flex;gap:6px;flex-shrink:0}
.badge{padding:3px 8px;border-radius:4px;font-size:10px;font-weight:600;letter-spacing:.3px}
.badge-free{background:rgba(76,175,80,.12);color:#4CAF50;border:1px solid rgba(76,175,80,.25)}
.badge-key{background:rgba(255,152,0,.12);color:#FF9800;border:1px solid rgba(255,152,0,.25)}
.badge-get{background:rgba(33,150,243,.12);color:#2196F3;border:1px solid rgba(33,150,243,.25)}
.badge-post{background:rgba(156,39,176,.12);color:#9C27B0;border:1px solid rgba(156,39,176,.25)}
.api-category{display:inline-flex;align-items:center;gap:4px;padding:3px 8px;background:var(--bg3);border-radius:4px;font-size:11px;color:var(--text3);font-weight:500;margin-bottom:10px}
.api-desc{font-size:13px;color:var(--text2);line-height:1.6;margin-bottom:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.api-meta{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px}
.meta-tag{padding:2px 8px;background:var(--bg3);border-radius:4px;font-size:11px;color:var(--text3)}
.api-example{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius2);padding:10px 12px;margin-bottom:12px}
.api-example-label{font-size:10px;color:var(--text3);font-weight:600;letter-spacing:.5px;margin-bottom:4px;text-transform:uppercase}
.api-example-url{font-size:11px;color:var(--gold);word-break:break-all;line-height:1.5;font-family:'SF Mono',Monaco,'Cascadia Code',monospace}
.api-usecase{font-size:12px;color:var(--text2)}
.api-usecase strong{color:var(--text);font-weight:600}
.api-card-footer{display:flex;align-items:center;justify-content:space-between;padding-top:12px;border-top:1px solid var(--border);margin-top:4px}
.api-official{display:flex;align-items:center;gap:4px;font-size:11px;color:var(--text3);transition:color .2s}
.api-official:hover{color:var(--gold)}
.api-expand{font-size:11px;color:var(--text3);display:flex;align-items:center;gap:4px;transition:color .2s}
.api-expand:hover{color:var(--text)}
/* EXPANDED CARD */
.api-card.expanded{grid-column:1/-1}
.api-card.expanded .api-detail{display:block}
.api-detail{display:none;padding-top:16px;border-top:1px solid var(--border);margin-top:12px}
.api-detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:16px}
.api-detail-section{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius2);padding:12px}
.api-detail-label{font-size:10px;color:var(--text3);font-weight:600;letter-spacing:.5px;text-transform:uppercase;margin-bottom:6px}
.api-detail-content{font-size:12px;color:var(--text2);line-height:1.6}
.api-detail-content code{font-family:'SF Mono',Monaco,'Cascadia Code',monospace;font-size:11px;color:var(--gold);background:var(--bg3);padding:1px 5px;border-radius:3px}
.api-response-section{grid-column:1/-1}
.api-response{background:var(--bg);border:1px solid var(--border);border-radius:var(--radius2);padding:12px;max-height:200px;overflow:auto}
.api-response pre{font-family:'SF Mono',Monaco,'Cascadia Code',monospace;font-size:11px;color:var(--text2);white-space:pre-wrap;word-break:break-all;line-height:1.6}
.api-close{background:var(--bg3);border:1px solid var(--border);border-radius:var(--radius2);color:var(--text2);font-size:12px;padding:6px 14px;cursor:pointer;transition:all .2s;display:flex;align-items:center;gap:6px}
.api-close:hover{border-color:var(--gold);color:var(--gold)}
/* NO RESULTS */
.no-results{text-align:center;padding:80px 20px;color:var(--text3)}
.no-results svg{margin-bottom:16px;opacity:.4}
.no-results p{font-size:16px;font-weight:600;color:var(--text2);margin-bottom:6px}
.no-results span{font-size:13px}
/* FOOTER */
.site-footer{border-top:1px solid var(--border);padding:28px 24px;background:var(--bg2)}
.footer-inner{max-width:1200px;margin:0 auto;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text3)}
.footer-links{display:flex;gap:16px}
.footer-links a{font-size:13px;color:var(--text3);transition:color .2s}
.footer-links a:hover{color:var(--gold)}
/* CATEGORY ICONS */
.cat-weather{background:rgba(255,193,7,.12);color:#FFC107}
.cat-ip{background:rgba(76,175,80,.12);color:#4CAF50}
.cat-exchange{background:rgba(33,150,243,.12);color:#2196F3}
.cat-domain{background:rgba(156,39,176,.12);color:#9C27B0}
.cat-dns{background:rgba(0,150,136,.12);color:#009688}
.cat-url{background:rgba(255,87,34,.12);color:#FF5722}
.cat-random{background:rgba(233,30,99,.12);color:#E91E63}
.cat-dev{background:rgba(212,175,55,.12);color:#D4AF37}
/* RESPONSIVE */
@media(max-width:768px){
  .hero{padding:60px 20px 40px}
  .hero-title{font-size:32px}
  .stat{padding:0 16px}
  .stat-num{font-size:22px}
  .filter-inner{flex-direction:column;align-items:flex-start}
  .filter-group-right{margin-left:0}
  .api-grid{grid-template-columns:1fr}
  .api-detail-grid{grid-template-columns:1fr}
  .api-response-section{grid-column:1}
  .footer-inner{flex-direction:column;text-align:center}
  .main-nav{gap:4px}
  .nav-link{padding:6px 8px;font-size:12px}
}
@media(max-width:480px){
  .header-inner{padding:0 16px}
  .hero{padding:48px 16px 32px}
  .api-grid-section{padding:20px 16px 60px}
  .filter-bar{padding:10px 16px}
}