.about-main{background:#fff;min-height:100vh}
.about-hero{background:linear-gradient(135deg,#f0f4ff 0%,#fff 60%);border-bottom:1px solid #e9e9e9;padding:56px 0 48px}
.about-hero-inner{max-width:800px;margin:0 auto;padding:0 24px}
.about-hero-badge{display:inline-flex;align-items:center;gap:6px;background:rgba(9,42,110,0.08);border:1px solid rgba(9,42,110,0.18);color:#092a6e;font-size:12px;font-weight:600;padding:5px 12px;border-radius:20px;margin-bottom:16px}
.about-hero-title{font-size:clamp(28px,4vw,44px);font-weight:800;color:#101010;margin-bottom:14px;letter-spacing:-0.5px}
.about-hero-desc{font-size:16px;color:#555;line-height:1.65;margin-bottom:28px;max-width:600px}
.about-anchors{display:flex;gap:8px;flex-wrap:wrap}
.anchor-btn{background:#fff;border:1.5px solid #e9e9e9;color:#555;font-size:13px;font-weight:500;padding:6px 14px;border-radius:20px;text-decoration:none;transition:all 0.18s}
.anchor-btn:hover{border-color:#092a6e;color:#092a6e}
.about-layout{display:grid;grid-template-columns:220px 1fr;gap:0;max-width:1200px;margin:0 auto;padding:0 24px;align-items:start}
.about-sidebar{position:sticky;top:24px;padding:32px 0;border-right:1px solid #e9e9e9;margin-right:48px}
.about-nav{display:flex;flex-direction:column;gap:2px}
.about-nav-section{font-size:10px;font-weight:700;letter-spacing:1.2px;text-transform:uppercase;color:#a8a29e;padding:14px 12px 6px;margin-top:4px}
.about-nav-link{font-size:13px;color:#57534e;padding:7px 12px;border-radius:7px;text-decoration:none;transition:all 0.15s;border-left:2px solid transparent}
.about-nav-link:hover{background:#faf9f7;color:#101010}
.about-nav-link.active{background:rgba(9,42,110,0.07);color:#092a6e;border-left-color:#092a6e;font-weight:600}
.about-content{padding:40px 0 80px}
.about-section{margin-bottom:8px;scroll-margin-top:32px}
.about-section h2{font-size:24px;font-weight:800;color:#101010;margin-bottom:16px;padding-bottom:12px;border-bottom:2px solid #f0ede8}
.about-h3{font-size:16px;font-weight:700;color:#1c1917;margin:24px 0 12px}
.about-divider{height:1px;background:#f0ede8;margin:40px 0}
.about-list{padding-left:20px;display:flex;flex-direction:column;gap:8px}
.about-list li{font-size:14px;color:#444;line-height:1.6}
.about-tip{display:flex;align-items:flex-start;gap:10px;background:#fafaf8;border:1px solid #e9e9e9;border-radius:10px;padding:12px 16px;margin-top:16px;font-size:13px;color:#444;line-height:1.6}
.tip-icon{font-size:16px;flex-shrink:0;margin-top:1px}
.code-inline{background:#f0ede8;border:1px solid #e0d9d0;border-radius:5px;padding:2px 7px;font-family:'JetBrains Mono',monospace;font-size:12px;color:#c0392b}
.code-block{background:#1e1e1e;border-radius:10px;padding:16px 20px;margin:12px 0;overflow-x:auto}
.code-block pre{font-family:'JetBrains Mono',monospace;font-size:12px;color:#d4d4d4;line-height:1.7;margin:0;white-space:pre}
.code-comment{color:#6a9955}
kbd{background:#f0ede8;border:1px solid #d0c9c0;border-radius:4px;padding:1px 6px;font-size:11px;font-family:monospace}

/* Feature grid */
.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:20px}
.feature-card{background:#fafaf8;border:1px solid #e9e9e9;border-radius:12px;padding:18px;transition:all 0.2s}
.feature-card:hover{border-color:#092a6e;box-shadow:0 4px 16px rgba(9,42,110,0.08)}
.feature-icon{font-size:24px;margin-bottom:10px}
.feature-card h3{font-size:14px;font-weight:700;color:#101010;margin-bottom:6px}
.feature-card p{font-size:13px;color:#666;line-height:1.55}

/* Stack */
.stack-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:16px}
.stack-group{background:#fafaf8;border:1px solid #e9e9e9;border-radius:12px;padding:16px}
.stack-group-title{font-size:11px;font-weight:700;letter-spacing:1px;text-transform:uppercase;color:#a8a29e;margin-bottom:10px}
.stack-item{display:flex;align-items:center;gap:10px;padding:5px 0;border-bottom:1px solid #f0ede8}
.stack-item:last-child{border-bottom:none}
.stack-badge{font-size:11px;font-weight:600;padding:3px 9px;border-radius:5px;flex-shrink:0}
.stack-badge--go{background:#00acd7;color:#fff}
.stack-badge--blue{background:#336791;color:#fff}
.stack-badge--orange{background:rgba(9,42,110,0.12);color:#092a6e;border:1px solid rgba(9,42,110,0.2)}
.stack-badge--gray{background:#f0ede8;color:#57534e;border:1px solid #e0d9d0}
.stack-desc{font-size:12px;color:#666}

/* Steps */
.steps{display:flex;flex-direction:column;gap:0}
.step{display:flex;gap:16px;padding:20px 0;border-bottom:1px solid #f0ede8;position:relative}
.step:last-child{border-bottom:none}
.step-num{width:32px;height:32px;background:#092a6e;color:#fff;font-size:13px;font-weight:800;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:2px}
.step-body h3{font-size:15px;font-weight:700;color:#101010;margin-bottom:6px}
.step-body p{font-size:13px;color:#555;line-height:1.6}
.step-body a{color:#092a6e;text-decoration:none;font-weight:500}
.step-note{background:rgba(9,42,110,0.06);border:1px solid rgba(9,42,110,0.15);border-radius:7px;padding:8px 12px;font-size:12px;color:#666;margin-top:8px}

/* Guide items */
.guide-items{display:flex;flex-direction:column;gap:10px;margin-bottom:8px}
.guide-item{display:flex;align-items:flex-start;gap:12px;background:#fafaf8;border:1px solid #f0ede8;border-radius:10px;padding:12px 14px;font-size:13px;color:#444;line-height:1.5}
.guide-icon{font-size:18px;flex-shrink:0;margin-top:1px}

/* Layout preview */
.layout-preview{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px;margin:16px 0}
.layout-col{border-radius:10px;padding:14px;text-align:center;border:2px solid #e9e9e9}
.layout-col--filters{background:#f0f4ff;border-color:rgba(9,42,110,0.2)}
.layout-col--list{background:#f5f9ff;border-color:rgba(59,130,246,0.2)}
.layout-col--map{background:#f5fff8;border-color:rgba(34,197,94,0.2)}
.layout-col-title{font-size:13px;font-weight:700;color:#101010;margin-bottom:6px}
.layout-col-desc{font-size:11px;color:#888;line-height:1.4}

/* Roles */
.roles-table{border:1px solid #e9e9e9;border-radius:12px;overflow:hidden;margin-top:16px}
.roles-header{display:grid;grid-template-columns:140px 1fr;background:#f6f6f6;padding:10px 16px;font-size:11px;font-weight:700;letter-spacing:0.8px;text-transform:uppercase;color:#888;border-bottom:1px solid #e9e9e9}
.role-row{display:grid;grid-template-columns:140px 1fr;align-items:start;padding:14px 16px;border-bottom:1px solid #f0ede8}
.role-row:last-child{border-bottom:none}
.role-badge{font-size:12px;font-weight:700;padding:4px 10px;border-radius:6px}
.role-badge--user{background:rgba(59,130,246,0.1);color:#3b82f6}
.role-badge--moder{background:rgba(9,42,110,0.1);color:#092a6e}
.role-badge--admin{background:rgba(239,68,68,0.1);color:#ef4444}
.role-perms{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:5px}
.role-perms li{font-size:13px;color:#444}

/* API table */
.api-table{border:1px solid #e9e9e9;border-radius:10px;overflow:hidden;margin:12px 0}
.api-row{display:grid;grid-template-columns:80px 220px 1fr 60px;align-items:center;padding:10px 14px;border-bottom:1px solid #f0ede8;gap:12px;font-size:13px}
.api-row:last-child{border-bottom:none}
.api-header{background:#f6f6f6;font-size:10px;font-weight:700;letter-spacing:0.8px;text-transform:uppercase;color:#888}
.api-row code{font-family:'JetBrains Mono',monospace;font-size:12px;color:#c0392b;background:#fdf2f0;padding:2px 6px;border-radius:4px}
.method{font-size:11px;font-weight:700;padding:3px 8px;border-radius:5px;letter-spacing:0.3px}
.method.get{background:rgba(34,197,94,0.12);color:#16a34a}
.method.post{background:rgba(59,130,246,0.12);color:#3b82f6}
.method.put{background:rgba(245,158,11,0.12);color:#d97706}
.method.delete{background:rgba(239,68,68,0.12);color:#ef4444}
.auth-yes{color:#16a34a;font-weight:600;font-size:14px}
.auth-no{color:#a8a29e;font-size:14px}

/* DB tables */
.db-tables{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:16px}
.db-table-card{background:#fafaf8;border:1px solid #e9e9e9;border-radius:10px;padding:14px}
.db-table-name{font-family:'JetBrains Mono',monospace;font-size:13px;font-weight:600;color:#c0392b;margin-bottom:5px}
.db-table-desc{font-size:12px;color:#666;line-height:1.5}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:8px}
.faq-item{border:1px solid #e9e9e9;border-radius:10px;overflow:hidden;background:#fafaf8}
.faq-q{padding:14px 16px;font-size:14px;font-weight:600;color:#101010;cursor:pointer;list-style:none;transition:background 0.15s}
.faq-q:hover{background:#f0ede8}
.faq-item[open] .faq-q{background:#f0f4ff;border-bottom:1px solid #f0ede8;color:#092a6e}
.faq-a{padding:14px 16px;font-size:13px;color:#444;line-height:1.7}
.faq-a a{color:#092a6e;text-decoration:none;font-weight:500}

/* Contacts */
.contacts-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:16px}
.contact-card{background:#fafaf8;border:1px solid #e9e9e9;border-radius:12px;padding:18px;display:flex;align-items:flex-start;gap:12px}
.contact-icon{font-size:24px}
.contact-title{font-size:11px;font-weight:700;letter-spacing:0.5px;text-transform:uppercase;color:#a8a29e;margin-bottom:4px}
.contact-val{font-size:13px;color:#444;font-weight:500}

@media(max-width:900px){.about-layout{grid-template-columns:1fr}.about-sidebar{display:none}.feature-grid{grid-template-columns:1fr}.stack-grid{grid-template-columns:1fr}.api-row{grid-template-columns:70px 1fr;font-size:12px}.api-row span:nth-child(3){display:none}.layout-preview{grid-template-columns:1fr}.contacts-grid{grid-template-columns:1fr 1fr}.db-tables{grid-template-columns:1fr}}
@media(max-width:600px){.contacts-grid{grid-template-columns:1fr}.roles-header,.role-row{grid-template-columns:1fr}.roles-header span:first-child{display:none}}