/* Circle FTP - Optimized Stylesheet */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{--primary:#1565c0;--primary-dark:#0d47a1;--secondary:#2e7d32;--accent:#f9a825;--dark:#1a1a2e;--text:#333;--text-light:#666;--bg:#fff;--bg-light:#f5f7fa;--border:#e0e0e0;--shadow:0 2px 8px rgba(0,0,0,.08);--radius:8px;--max-w:1100px}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;font-size:16px;line-height:1.7;color:var(--text);background:var(--bg)}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s}
a:hover{color:var(--primary-dark)}
h1,h2,h3,h4{font-weight:700;line-height:1.3;color:var(--dark);margin-bottom:.5em}
h1{font-size:2rem}h2{font-size:1.5rem;margin-top:1.5em}h3{font-size:1.2rem;margin-top:1.2em}
p{margin-bottom:1em}
ul,ol{margin:0 0 1em 1.5em}li{margin-bottom:.4em}
.container{max-width:var(--max-w);margin:0 auto;padding:0 16px}
.grid-2{display:grid;grid-template-columns:1fr;gap:24px;padding:24px 0}
.main-col{min-width:0}
.side-col{background:var(--bg-light);padding:16px;border-radius:var(--radius);height:fit-content}
/* Header */
.hdr{background:var(--dark);color:#fff;position:sticky;top:0;z-index:100;box-shadow:var(--shadow)}
.hdr-inner{display:flex;align-items:center;justify-content:space-between;padding:10px 16px;max-width:var(--max-w);margin:0 auto}
.logo{display:flex;align-items:center;gap:8px;color:#fff;font-size:1.2rem;font-weight:700}
.logo:hover{color:var(--accent);text-decoration:none}
.logo img{width:32px;height:32px;border-radius:6px}
.nav-btn{display:none;background:none;border:none;color:#fff;font-size:1.4rem;cursor:pointer;padding:4px}
.nav{display:flex;align-items:center;gap:4px}
.nav a{color:#bbb;padding:7px 10px;border-radius:6px;font-size:.85rem;font-weight:500;white-space:nowrap}
.nav a:hover,.nav a.active{color:#fff;background:rgba(255,255,255,.1);text-decoration:none}
/* Hero */
.hero{background:linear-gradient(135deg,var(--dark),#16213e);color:#fff;padding:40px 16px;text-align:center}
.hero h1{color:#fff;font-size:1.9rem;margin-bottom:12px}
.hero p{font-size:1rem;color:#bbb;max-width:650px;margin:0 auto 20px}
.btns{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.btn{display:inline-block;padding:11px 24px;border-radius:6px;font-weight:600;font-size:.95rem;cursor:pointer;transition:all .2s;border:none;text-align:center}
.btn-p{background:var(--primary);color:#fff}.btn-p:hover{background:var(--primary-dark);color:#fff;text-decoration:none}
.btn-s{background:var(--secondary);color:#fff}.btn-s:hover{background:#256b29;color:#fff;text-decoration:none}
.btn-o{background:transparent;color:#fff;border:2px solid #fff}.btn-o:hover{background:#fff;color:var(--dark);text-decoration:none}
/* Breadcrumb */
.bc{padding:10px 0;font-size:.82rem;color:var(--text-light);border-bottom:1px solid var(--border)}
.bc a{color:var(--primary)}.bc span{margin:0 6px;color:#aaa}
/* Article */
.art{padding:24px 0}
.art h2{padding-bottom:6px;border-bottom:2px solid var(--primary);display:inline-block}
.info-box{background:#e3f2fd;border-left:4px solid var(--primary);padding:14px 18px;border-radius:0 6px 6px 0;margin:16px 0}
.info-box.warn{background:#fff8e1;border-left-color:var(--accent)}
.info-box.ok{background:#e8f5e9;border-left-color:var(--secondary)}
.info-tbl{width:100%;border-collapse:collapse;margin:16px 0;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);font-size:.9rem}
.info-tbl th,.info-tbl td{padding:10px 14px;text-align:left;border-bottom:1px solid var(--border)}
.info-tbl th{background:var(--dark);color:#fff;font-weight:600;width:34%}
.info-tbl tr:last-child td{border-bottom:none}
/* Cards */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;margin:16px 0}
.card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:transform .2s,box-shadow .2s;box-shadow:var(--shadow)}
.card:hover{transform:translateY(-2px);box-shadow:0 4px 16px rgba(0,0,0,.12)}
.card-img{width:100%;height:160px;object-fit:cover}
.card-body{padding:14px}
.card-body h3{font-size:1rem;margin:0 0 6px}
.card-body p{font-size:.85rem;color:var(--text-light);margin:0 0 10px}
/* Steps */
.steps{counter-reset:sc;list-style:none;padding:0;margin:16px 0}
.steps li{counter-increment:sc;position:relative;padding:12px 12px 12px 52px;margin-bottom:10px;background:var(--bg-light);border-radius:6px;border:1px solid var(--border);font-size:.95rem}
.steps li::before{content:counter(sc);position:absolute;left:12px;top:50%;transform:translateY(-50%);width:28px;height:28px;background:var(--primary);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:.8rem}
/* FAQ */
.faq{margin:24px 0}
.faq h2{text-align:center;margin-bottom:20px}
.faq-item{border:1px solid var(--border);border-radius:6px;margin-bottom:8px;overflow:hidden;background:#fff}
.faq-q{width:100%;display:flex;justify-content:space-between;align-items:center;padding:13px 16px;background:none;border:none;cursor:pointer;font-size:.95rem;font-weight:600;color:var(--dark);text-align:left;gap:8px;font-family:inherit}
.faq-q:hover{background:var(--bg-light)}
.faq-q::after{content:'+';font-size:1.3rem;color:var(--primary);flex-shrink:0;transition:transform .2s}
.faq-item.open .faq-q::after{content:'\2212'}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s}
.faq-a-in{padding:0 16px 13px;color:var(--text);font-size:.92rem;line-height:1.7}
.faq-item.open .faq-a{max-height:600px}
/* Related */
.related{background:var(--bg-light);padding:20px;border-radius:var(--radius);margin:24px 0}
.related h3{margin:0 0 12px;font-size:1rem}
.rel-list{list-style:none;padding:0}
.rel-list li{padding:6px 0;border-bottom:1px solid var(--border)}
.rel-list li:last-child{border-bottom:none}
.rel-list a{font-weight:500;font-size:.9rem}
/* Sidebar widgets */
.wdg{margin-bottom:20px}
.wdg h3{font-size:.95rem;margin:0 0 10px;padding-bottom:6px;border-bottom:2px solid var(--primary)}
.wdg ul{list-style:none;padding:0}
.wdg li{padding:5px 0;border-bottom:1px solid var(--border);font-size:.85rem}
.wdg li:last-child{border-bottom:none}
/* Ad slots */
.ad-slot{margin:20px 0;text-align:center;min-height:100px;overflow:hidden}
/* Affiliate banner */
.aff{display:block;margin:16px auto;max-width:728px;text-align:center}
.aff img{border-radius:6px;box-shadow:var(--shadow)}
.aff-sidebar{display:block;margin-top:16px}
.aff-sidebar img{border-radius:8px;width:100%;height:auto}
/* Article images */
.art-img{border-radius:8px;margin:16px 0}
/* IP box */
.ip-box{background:linear-gradient(135deg,var(--dark),#16213e);color:#fff;padding:20px;border-radius:var(--radius);text-align:center;margin:20px 0}
.ip-box .ip{font-size:2.2rem;font-weight:700;font-family:'Courier New',monospace;color:var(--accent);margin:8px 0;letter-spacing:2px}
.ip-box p{color:#bbb;margin:0;font-size:.9rem}
/* Misspell banner */
.misspell{background:#fff3cd;border:1px solid #ffc107;border-radius:6px;padding:10px 14px;margin:16px 0;font-size:.85rem;text-align:center}
/* TOC */
.toc{background:var(--bg-light);border:1px solid var(--border);border-radius:6px;padding:14px 18px;margin:16px 0}
.toc h4{margin:0 0 8px;font-size:.9rem}
.toc ol{margin:0;padding-left:18px;font-size:.88rem}
.toc li{margin-bottom:3px}
/* Tags */
.tags{display:flex;flex-wrap:wrap;gap:6px;margin:12px 0}
.tag{background:var(--bg-light);border:1px solid var(--border);padding:3px 10px;border-radius:16px;font-size:.75rem;color:var(--text-light)}
/* Channel grid */
.ch-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:10px;margin:16px 0}
.ch-item{background:#fff;border:1px solid var(--border);border-radius:6px;padding:10px;text-align:center;font-size:.8rem;font-weight:500;transition:border-color .2s}
.ch-item:hover{border-color:var(--primary)}
/* Footer */
.ftr{background:var(--dark);color:#bbb;padding:32px 0 16px}
.ftr-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:24px;margin-bottom:24px}
.ftr-col h4{color:#fff;font-size:.9rem;margin:0 0 12px;padding-bottom:6px;border-bottom:2px solid var(--primary)}
.ftr-col ul{list-style:none;padding:0}
.ftr-col li{padding:3px 0}
.ftr-col a{color:#999;font-size:.85rem}
.ftr-col a:hover{color:#fff;text-decoration:none}
.ftr-bot{text-align:center;padding-top:16px;border-top:1px solid rgba(255,255,255,.1);font-size:.8rem}
/* Responsive */
@media(min-width:768px){
h1{font-size:2.4rem}h2{font-size:1.7rem}
.hero{padding:60px 20px}.hero h1{font-size:2.6rem}
.grid-2{grid-template-columns:1fr 280px;gap:32px}
}
@media(max-width:767px){
.nav-btn{display:block}
.nav{display:none;position:absolute;top:100%;left:0;right:0;background:var(--dark);flex-direction:column;padding:8px;border-top:1px solid rgba(255,255,255,.1);box-shadow:0 4px 12px rgba(0,0,0,.3)}
.nav.active{display:flex}
.nav a{padding:10px 14px;width:100%}
.side-col{order:2}
.cards{grid-template-columns:1fr}
.ftr-grid{grid-template-columns:1fr 1fr}
.ip-box .ip{font-size:1.6rem}
}
@media print{.hdr,.ftr,.side-col,.ad-slot,.nav-btn{display:none!important}.grid-2{grid-template-columns:1fr}}