:root{--bg:#fff;--ink:#101828;--muted:#667085;--line:#e6eaf0;--soft:#f7f9fc;--accent:#6957ff;--accent2:#8b7cff;--green:#12b76a;--shadow:0 22px 70px rgba(16,24,40,.10);--radius:24px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:Inter,ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;line-height:1.55}a{color:inherit}.container{width:min(1180px,calc(100% - 40px));margin:0 auto}.narrow{width:min(820px,100%)}.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(230,234,240,.8)}.header-inner{height:72px;display:flex;align-items:center;justify-content:space-between}.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;font-size:20px;letter-spacing:-.4px}.brand-mark{width:34px;height:34px;border-radius:11px;display:grid;place-items:center;background:linear-gradient(135deg,var(--accent),#9b8cff);color:#fff;font-weight:800;box-shadow:0 8px 20px rgba(105,87,255,.25)}.header-nav{display:flex;align-items:center;gap:24px;font-size:14px}.header-nav a{text-decoration:none;color:#475467}.header-nav a:hover{color:var(--ink)}.header-cta{padding:10px 16px;border-radius:12px;background:#f0edff;color:#5848e7!important;font-weight:700}.hero,.seo-hero{padding:78px 0 60px;background:radial-gradient(circle at 10% 20%,rgba(105,87,255,.09),transparent 30%),radial-gradient(circle at 85% 5%,rgba(18,183,106,.07),transparent 25%)}.seo-hero{padding-top:60px}.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 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0}.steps-grid{grid-template-columns:1fr}.section-head h2,.split-card h2,.student-help h2,.seo-copy h2{font-size:32px}.footer-grid{gap:26px}}
.group-heading{color:inherit;text-decoration:none}.group-heading:hover{color:#5948df}.hub-hero .inline-button{margin-top:10px}.hub-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.hub-item{position:relative;display:flex;flex-direction:column;gap:5px;padding:20px 48px 20px 20px;background:#fff;border:1px solid var(--line);border-radius:18px;text-decoration:none;transition:.18s}.hub-item:hover{transform:translateY(-1px);border-color:#cfc8ff;box-shadow:0 10px 30px rgba(16,24,40,.06)}.hub-item strong{font-size:17px}.hub-item span{font-size:13px;color:var(--muted)}.hub-item i{position:absolute;right:20px;top:50%;transform:translateY(-50%);font-style:normal;color:#6554eb;font-size:20px}.hub-checklist{margin:14px 0 0;padding-left:20px;color:#475467}.angle-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 18px;padding-left:22px}.seo-steps{display:grid;gap:10px;padding-left:24px}.related-card .related-hub{margin-top:6px;font-weight:800;color:#5948df}@media(max-width:700px){.hub-list,.angle-list{grid-template-columns:1fr}}
.steps-grid-four{grid-template-columns:repeat(4,minmax(0,1fr))}.catalog-grid{display:grid;gap:28px;margin-top:28px}.catalog-grid-wide{grid-template-columns:1.35fr 1fr}.catalog-more{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}.catalog-more a{display:inline-flex;padding:10px 14px;border:1px solid var(--line);border-radius:12px;background:#fff;text-decoration:none;font-size:14px;font-weight:700;color:#5143c9}.exam-section{padding-top:72px}.exam-card{background:linear-gradient(145deg,#fff,#f8f7ff)}.exam-links{display:grid;gap:10px}.exam-links a{display:flex;flex-direction:column;gap:3px;padding:15px 16px;border:1px solid var(--line);border-radius:15px;background:#fff;text-decoration:none}.exam-links a:hover{border-color:#cfc8ff;box-shadow:0 8px 24px rgba(16,24,40,.05)}.exam-links strong{font-size:15px}.exam-links span{font-size:12px;color:var(--muted)}.topic-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.topic-cards a{display:flex;flex-direction:column;gap:7px;min-height:104px;padding:18px;border:1px solid var(--line);border-radius:17px;background:#fff;text-decoration:none;font-weight:800}.topic-cards a:hover{border-color:#cfc8ff;transform:translateY(-1px)}.topic-cards span{font-size:12px;font-weight:600;color:#6b5ce7}.inline-resource-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px;margin:18px 0 28px}.inline-resource-grid a{display:flex;justify-content:space-between;gap:14px;padding:14px 15px;border:1px solid var(--line);border-radius:14px;background:#fff;text-decoration:none;font-size:14px;font-weight:700}.inline-resource-grid a:hover{border-color:#cfc8ff;color:#5948df}.breadcrumbs-wrap{flex-wrap:wrap;align-items:center}.info-box{margin:18px 0;padding:16px;border:1px solid #dfe3ea;border-radius:14px;background:#f8fafc;color:#475467}
@media(max-width:1000px){.steps-grid-four{grid-template-columns:repeat(2,minmax(0,1fr))}.catalog-grid-wide{grid-template-columns:1fr}.topic-cards{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:650px){.steps-grid-four,.topic-cards,.inline-resource-grid{grid-template-columns:1fr}.catalog-more{display:grid;grid-template-columns:1fr 1fr}.catalog-more a{justify-content:center;text-align:center}.exam-section{padding-top:52px}}