@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&family=Poppins:wght@400;500;600;700;800&display=swap');
:root{--blue:#2458df;--blue2:#1843b0;--green:#16a05a;--teal:#009f97;--violet:#7357d8;--ink:#141b34;--text:#4a5871;--light:#f6f9ff;--line:#dfe7f3;--white:#fff;--radius:18px;--shadow:0 12px 44px rgba(20,44,98,.075)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--light);color:var(--ink);font-family:Inter,Arial,sans-serif;line-height:1.65}a{color:inherit;text-decoration:none}a:hover{color:var(--blue)}h1,h2,h3,h4,.brand,.btn,.navlinks{font-family:Poppins,Arial,sans-serif;line-height:1.22}h1{font-size:clamp(2.4rem,5vw,4.4rem);letter-spacing:-.045em}h2{font-size:clamp(1.6rem,3vw,2.35rem);letter-spacing:-.035em}h3{font-size:1.13rem}p{color:var(--text)}.container{width:min(1160px,calc(100% - 40px));margin:auto}.site-header{background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:50;backdrop-filter:blur(16px)}.navwrap{min-height:77px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{font-size:1.3rem;font-weight:800;letter-spacing:-.04em;white-space:nowrap}.brand b{color:var(--blue)}.brand em{color:var(--green);font-style:normal}.brand-mark{background:var(--blue);color:#fff;border-radius:11px;padding:9px 12px;margin-right:8px}.navlinks{display:flex;gap:17px;align-items:center;font-size:.8rem;font-weight:600}.navlinks a:hover{color:var(--blue)}.nav-toggle{display:none;border:1px solid var(--line);background:white;padding:9px 12px;border-radius:10px;cursor:pointer}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--blue);border:1px solid var(--blue);color:white;padding:12px 18px;border-radius:999px;font-size:.86rem;font-weight:600;cursor:pointer;transition:.2s;line-height:1.3}.btn:hover{background:var(--blue2);color:white;transform:translateY(-1px)}.btn.outline{background:white;color:var(--blue)}.btn.outline:hover{background:#ebf1ff}.btn.green{background:var(--green);border-color:var(--green)}.btn.small{padding:9px 14px;font-size:.78rem}.eyebrow{font-weight:700;font-size:.74rem;letter-spacing:.11em;color:var(--blue);text-transform:uppercase}.hero{padding:78px 0 72px;background:radial-gradient(ellipse at 86% 2%,#e5f4ef 0,transparent 44%),radial-gradient(ellipse at 6% 9%,#dfeaff 0,transparent 43%),linear-gradient(#f9fbff,#f6f9ff);position:relative;overflow:hidden}.hero:before{content:'';position:absolute;inset:0;background-image:linear-gradient(#7ea4df13 1px,transparent 1px),linear-gradient(90deg,#7ea4df13 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(90deg,transparent,#0006,transparent);pointer-events:none}.hero .container{position:relative}.hero-copy{max-width:830px}.hero h1{margin:20px 0}.blue{color:var(--blue)}.green-text{color:var(--green)}.hero p{font-size:1.1rem;max-width:690px}.hero-actions,.inline-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}.search-box{display:flex;align-items:center;gap:12px;background:white;border:1px solid #d5e1f5;padding:9px 10px 9px 19px;border-radius:18px;max-width:800px;margin-top:30px;box-shadow:var(--shadow)}input,select,textarea{border:1px solid #d8e2f0;background:white;color:var(--ink);border-radius:11px;padding:12px 14px;font:inherit;max-width:100%}input:focus,select:focus,textarea:focus{outline:3px solid #c7d7ff;border-color:var(--blue)}.search-box input{border:0;outline:none;flex:1;min-width:120px}.search-box input:focus{outline:none}.search-box button{flex-shrink:0}.section{padding:54px 0}.section-title{display:flex;align-items:end;justify-content:space-between;gap:12px;margin-bottom:24px}.section-title h2{margin:8px 0}.section-title p{margin:5px 0}.grid{display:grid;gap:18px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:23px;box-shadow:0 6px 25px #182e5710}.card:hover{border-color:#bdcff1}.card h3{margin:14px 0 8px}.card p{font-size:.91rem;margin:7px 0}.card .foot{margin-top:18px}.icon-tile{display:inline-flex;align-items:center;justify-content:center;width:46px;height:46px;background:#e8efff;color:var(--blue);border-radius:13px;font-size:1.2rem}.icon-tile.teal{background:#e6f8f4;color:#008c80}.icon-tile.violet{background:#f0ecff;color:var(--violet)}.icon-tile.green{background:#e8f8ed;color:var(--green)}.link{color:var(--blue);font-size:.85rem;font-weight:700}.tag{display:inline-block;background:#edf3ff;color:#2557b7;border-radius:30px;padding:5px 10px;font-size:.72rem;font-weight:700}.tag.green{background:#e5f6ea;color:#18763d}.tag.violet{background:#f1eafe;color:#6750be}.muted{color:var(--text)}.white-section{background:white}.callout{padding:32px;border:1px solid #cadcf8;background:linear-gradient(115deg,#e9f2ff,#f1fcf7);border-radius:24px}.callout h2{margin-top:7px}.footer{background:#eaf0f9;border-top:1px solid var(--line);padding:38px 0 18px;margin-top:45px}.footer-cols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:24px}.footer a{display:block;font-size:.86rem;margin:8px 0;color:#4f5c76}.copyright{border-top:1px solid #cbd9eb;padding-top:18px;font-size:.76rem;color:#56647c;margin-top:26px}.page-head{padding:56px 0 39px;background:linear-gradient(120deg,#e8f1ff,#f4fafe);border-bottom:1px solid var(--line)}.page-head h1{font-size:clamp(2rem,4vw,3.2rem);margin:12px 0}.page-head p{max-width:790px}.content{min-height:50vh}.result-count{font-size:.87rem;color:var(--text);margin:12px 0}.filters{display:flex;gap:9px;flex-wrap:wrap;margin:18px 0}.chip{border:1px solid #cad8ec;border-radius:999px;background:white;color:#32445f;padding:8px 14px;font-size:.81rem;cursor:pointer}.chip.active{background:var(--blue);border-color:var(--blue);color:white}.small-heading{font-size:.78rem;color:#5a6780;letter-spacing:.05em;text-transform:uppercase;font-weight:700}.stack{display:grid;gap:15px}.article{max-width:790px}.article h2{font-size:1.4rem;margin-top:31px}.article pre{background:#edf3fa;padding:17px;border-radius:14px;overflow:auto;font-family:'JetBrains Mono',monospace;font-size:.82rem}.article ul,.article ol{padding-left:24px}.split{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:26px}.list-row{border-bottom:1px solid var(--line);padding:18px 0}.list-row:last-child{border:0}.lesson-list{margin:10px 0 0 15px;padding-left:18px;color:#475569}.lesson-list li{padding:3px 0}.input-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}.field{display:grid;gap:5px}.field label{font-size:.82rem;font-weight:700}.field small{color:#52627b}.field.full{grid-column:1/-1}.notice{padding:15px 17px;background:#eff5ff;border:1px solid #d7e5ff;border-radius:14px;font-size:.85rem;color:#415578}.notice.warn{background:#fff8ed;border-color:#f2dfbd}.video-placeholder{aspect-ratio:16/9;background:linear-gradient(130deg,#dbe8ff,#f3efff);border-radius:15px;display:flex;align-items:center;justify-content:center;text-align:center;padding:15px;flex-direction:column;color:#2a4e96}.video-placeholder strong{font-family:Poppins;font-size:1.05rem}.video-placeholder button{margin-top:12px}.status{font-size:.77rem;font-weight:700;color:#6a4b1d;background:#fff3dc;border-radius:15px;padding:5px 10px}.status.verified{background:#e5f6eb;color:#0c783e}.agent-response{border-left:3px solid var(--blue);background:#eff5ff;padding:17px;border-radius:0 12px 12px 0;margin-top:13px;white-space:pre-wrap}.tabs{display:flex;gap:8px;flex-wrap:wrap}.kbd{font: .8rem 'JetBrains Mono',monospace;background:#eaf0f7;border-radius:6px;padding:2px 5px}.floating-help{position:fixed;right:20px;bottom:18px;z-index:30;box-shadow:var(--shadow)}.empty{padding:25px;background:white;border:1px dashed #b7c8e3;border-radius:15px;color:#53627a}.hidden{display:none!important}.course-meta{display:flex;gap:8px;flex-wrap:wrap}.disclaimer{font-size:.78rem;color:#66758b}.admin-note{font-size:.8rem;background:#fff8ed;border:1px solid #f3deb9;padding:13px;border-radius:12px}details{background:#fff;border:1px solid var(--line);border-radius:13px;padding:14px 18px;margin:11px 0}summary{font-weight:700;cursor:pointer;font-family:Poppins}.sticky-aside{position:sticky;top:100px;align-self:start}button:disabled{opacity:.55;cursor:not-allowed}@media(max-width:1040px){.navlinks{gap:10px;font-size:.73rem}.navwrap{gap:10px}}@media(max-width:850px){.nav-toggle{display:block}.navlinks{display:none;position:absolute;top:76px;left:0;right:0;background:white;box-shadow:var(--shadow);padding:18px 24px;flex-direction:column;align-items:stretch;gap:14px}.navlinks.open{display:flex}.grid.three,.grid.four{grid-template-columns:repeat(2,minmax(0,1fr))}.footer-cols{grid-template-columns:repeat(2,1fr)}.split{grid-template-columns:1fr}.sticky-aside{position:static}}@media(max-width:560px){.container{width:min(100% - 28px,1160px)}.hero{padding:55px 0}.search-box{flex-wrap:wrap}.search-box input{width:100%;flex-basis:100%}.search-box button{width:100%}.grid.two,.grid.three,.grid.four,.input-grid,.footer-cols{grid-template-columns:1fr}.section{padding:37px 0}.field.full{grid-column:auto}.card{padding:19px}.section-title{align-items:start;flex-direction:column}.brand{font-size:1.08rem}}