:root{--primary-color:#00695c;--primary-dark:#004d40;--bg-color:#e8eaed;--container-bg:#fff;--text-color:#1a1a1a;--text-muted:#4a4a4a;--border-color:#8f8f8f;--border-light:#d1d5db;--accent-bg:#e0f2f1;--font-family-ui:'Google Sans','Google Sans Text',system-ui,-apple-system,'Segoe UI',Roboto,Arial,sans-serif;--header-height:54px}
*{box-sizing:border-box}
body{font-family:var(--font-family-ui);background:var(--bg-color);color:var(--text-color);margin:0;padding:0 16px 24px;display:flex;flex-direction:column;align-items:center;min-height:100vh}
.sprite{position:absolute;width:0;height:0;overflow:hidden}
.ico{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}
.container{background:var(--container-bg);margin-top:16px;padding:24px 32px;border-radius:12px;box-shadow:0 8px 16px rgba(0,0,0,.08);width:100%;max-width:1180px;display:flex;flex-direction:column;height:fit-content}
.app-header{position:sticky;top:0;align-self:stretch;margin:0 -16px;min-height:var(--header-height);background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--border-light);display:flex;align-items:center;justify-content:center;z-index:1000;padding:6px 16px}
.header-inner{width:100%;max-width:1180px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px 16px}
.brand-inline{display:flex;align-items:center;gap:6px;font-size:18px;font-weight:700;color:var(--primary-color);text-decoration:none;white-space:nowrap;letter-spacing:-.3px}
.brand-inline .ico{width:20px;height:20px}
.nav-pills{display:flex;flex-wrap:wrap;gap:4px}
.pill{display:inline-flex;align-items:center;gap:5px;padding:5px 10px;border-radius:6px;font-family:var(--font-family-ui);font-size:12px;font-weight:600;color:var(--text-muted);border:1px solid transparent;background:transparent;cursor:pointer;transition:all .15s ease;white-space:nowrap;text-decoration:none}
.pill .ico{width:16px;height:16px}
.pill:hover{background:#f1f3f4;color:var(--text-color)}
.pill.active{background:var(--accent-bg);color:var(--primary-dark);border-color:var(--primary-color)}
.header-actions{display:flex;align-items:center;gap:12px}
.search-compact{position:relative;width:180px}
.search-compact input{width:100%;height:32px;padding:0 10px 0 30px;font-family:var(--font-family-ui);font-size:12px;border-radius:6px;border:1px solid var(--border-light);outline:none;background:#f8fafc;transition:all .2s}
.search-compact input:focus{background:#fff;border-color:var(--primary-color);box-shadow:0 0 0 2px rgba(0,105,92,.15)}
.search-compact .ico{position:absolute;left:7px;top:50%;transform:translateY(-50%);width:16px;height:16px;color:var(--text-muted)}
.header-labels{display:flex;gap:10px;flex-wrap:wrap}
.header-labels span{font-size:12px;font-weight:600;color:var(--text-muted);white-space:nowrap}
.section-header{margin-bottom:20px;border-bottom:2px solid var(--primary-color);padding-bottom:8px;display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px}
.section-title{color:var(--primary-dark);font-size:14px;font-weight:700;display:flex;align-items:center;gap:8px;text-transform:uppercase;letter-spacing:.5px;margin:0}
.topics-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:12px;margin-bottom:34px}
.topic-card{background:#fff;border:1px solid var(--border-light);border-radius:8px;padding:10px 14px;display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--text-color);transition:transform .15s ease,border-color .2s,box-shadow .2s}
.topic-card.is-hidden{display:none}
.topic-card:hover{border-color:var(--primary-color);box-shadow:0 4px 10px rgba(0,105,92,.1);transform:translateY(-2px)}
.topic-id{background:#f1f3f4;color:var(--primary-dark);font-weight:700;font-size:12px;min-width:28px;height:28px;border-radius:6px;display:flex;align-items:center;justify-content:center;border:1px solid var(--border-light);flex-shrink:0}
.topic-card:hover .topic-id{background:var(--accent-bg);border-color:var(--primary-color)}
.topic-name{font-size:13px;font-weight:600;line-height:1.35}
.crumbs{font-size:13px;font-weight:600;color:var(--text-muted);margin:0 0 18px}
.crumbs a{color:var(--primary-color);text-decoration:none}
.empty{color:var(--text-muted)}
.post-content{max-width:820px;width:100%;margin:0 auto 34px;line-height:1.7;font-size:17px;overflow-wrap:anywhere}
.post-content h1{font-size:30px;line-height:1.25;color:var(--primary-dark);letter-spacing:-.3px}
.post-content h2,.post-content h3{color:var(--primary-dark);line-height:1.3}
.post-content a{color:var(--primary-color)}
.post-content img,.post-content video{max-width:100%;height:auto}
.post-content table{border-collapse:collapse;max-width:100%;display:block;overflow-x:auto}
.post-content th,.post-content td{border:1px solid var(--border-light);padding:8px 12px}
.post-content pre{background:#f1f3f4;padding:14px;border-radius:8px;overflow-x:auto}
.related h2{font-size:14px;text-transform:uppercase;letter-spacing:.5px;color:var(--primary-dark);border-bottom:2px solid var(--primary-color);padding-bottom:10px}
.footer-wrapper{border-top:1px solid var(--border-light);padding-top:22px;display:flex;flex-direction:column;gap:16px}
.footer-primary-row{display:flex;justify-content:space-between;align-items:center;font-size:13px;color:var(--text-muted);flex-wrap:wrap;gap:12px}
.footer-legal-links{display:flex;gap:16px;flex-wrap:wrap}
.footer-legal-links a{color:var(--primary-color);text-decoration:none;font-weight:600}
.footer-legal-links a:hover{text-decoration:underline}
.language-switcher-row{display:flex;align-items:center;flex-wrap:wrap;gap:6px;background:#f8fafc;padding:8px 12px;border-radius:8px;border:1px solid var(--border-light)}
.lang-label{font-size:12px;font-weight:600;color:var(--text-muted);display:flex;align-items:center;gap:4px;margin-right:4px;text-transform:uppercase;letter-spacing:.5px}
.lang-label .ico{width:15px;height:15px}
.lang-btn{background:#fff;border:1px solid var(--border-light);border-radius:4px;padding:3px 8px;font-size:11px;font-weight:700;color:var(--text-muted);text-decoration:none;text-transform:uppercase;transition:all .15s ease}
.lang-btn:hover{background:#f1f3f4;border-color:var(--border-color);color:var(--text-color)}
.lang-btn.active{background:var(--primary-color);color:#fff;border-color:var(--primary-dark)}
@media(max-width:820px){
.header-labels{display:none}
.search-compact{display:none}
.header-inner{justify-content:center;gap:8px 12px}
.nav-pills{justify-content:center}
.footer-primary-row{justify-content:center;text-align:center}
.footer-legal-links{justify-content:center}
.language-switcher-row{justify-content:center}
}
@media(max-width:600px){.container{padding:24px 18px}}