body.dark{--ink:#edf2ff;--muted:#aab4ca;--line:#2b354a;--bg:#0b1020;--white:#131a2b;background:var(--bg)}body.dark .site-header,body.dark .panel,body.dark .app-card,body.dark .news-card,body.dark .table,body.dark input,body.dark textarea,body.dark select{background:#131a2b;color:var(--ink)}.theme-toggle{position:fixed;right:18px;bottom:18px;z-index:70;border:0;border-radius:50%;width:48px;height:48px;background:#111a35;color:#fff;box-shadow:0 8px 30px #0003;cursor:pointer}.module-wrap{max-width:1180px;margin:auto;padding:42px 24px}.hero-3d{position:relative;overflow:hidden;border-radius:34px;min-height:420px;padding:65px;background:linear-gradient(135deg,#111936,#2e1c75,#176ad4);color:#fff;perspective:900px}.hero-3d:after{content:'82';position:absolute;right:8%;top:10%;font-size:220px;font-weight:900;opacity:.12}.hero-3d h2{font-size:clamp(42px,7vw,80px);line-height:1}.bento{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:180px;gap:16px}.bento>div{background:#fff;border:1px solid var(--line);border-radius:24px;padding:25px}.bento>div:first-child{grid-column:span 2;grid-row:span 2;background:linear-gradient(135deg,#2864ff,#7728ff);color:#fff}.testimonials{display:flex;gap:18px;overflow:auto}.testimonial{min-width:330px}.calculator{display:grid;grid-template-columns:1fr 1fr;gap:22px}.calc-result{display:grid;place-items:center;border-radius:22px;background:linear-gradient(135deg,#2864ff,#7728ff);color:#fff;font-size:36px;font-weight:900}.builder-list{display:grid;gap:12px}.builder-item{display:grid;grid-template-columns:35px 1fr 160px 100px 80px;align-items:center;gap:12px;cursor:grab}.media-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}.media-card{background:#fff;border-radius:14px;border:1px solid var(--line);padding:10px}.media-card img,.media-card video{width:100%;aspect-ratio:1;object-fit:cover;border-radius:9px}.chat-launch{position:fixed;right:22px;bottom:82px;z-index:75;border:0;border-radius:18px;background:linear-gradient(135deg,#2864ff,#7728ff);color:#fff;padding:14px 18px;font-weight:800}.chat-panel{position:fixed;right:22px;bottom:140px;width:min(390px,calc(100vw - 24px));height:560px;z-index:74;background:#fff;border:1px solid var(--line);border-radius:24px;box-shadow:0 25px 80px #0003;display:none;overflow:hidden}.chat-panel.open{display:grid;grid-template-rows:auto 1fr auto}.chat-head{padding:15px 18px;background:#131a35;color:#fff}.chat-messages{overflow:auto;padding:15px}.chat-msg{margin:8px 0;padding:9px 12px;background:#eef2ff;border-radius:12px;font-size:13px}.chat-form{display:flex;padding:10px}.chat-form input{border-radius:11px 0 0 11px}.chat-form button{border:0;background:#2864ff;color:#fff;padding:0 15px}.auth-box{max-width:520px;margin:60px auto}@media(max-width:700px){.bento{grid-template-columns:1fr}.calculator{grid-template-columns:1fr}.media-grid{grid-template-columns:repeat(2,1fr)}.builder-item{grid-template-columns:30px 1fr}.hero-3d{padding:35px 25px}}