:root{color-scheme:light;--background:#fff;--foreground:#252525;--muted:#f6f6f6;--muted-foreground:#686868;--border:#e5e5e5;--primary:#2563eb;--primary-hover:#1d4ed8;--primary-foreground:#fff;--selected:#dbeafe;--selected-border:#93c5fd;--success:#059669;--success-soft:#ecfdf5;--radius:.625rem;--shadow:0 24px 64px #0f172a1f;font-synthesis:none;text-rendering:optimizelegibility;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--background);color:var(--foreground);margin:0;line-height:1.5}button,a{font:inherit}a{color:inherit}a[href]{cursor:pointer}img{max-width:100%;display:block}.container{width:min(1120px,100% - 2rem);margin-inline:auto}.site-header{z-index:20;backdrop-filter:blur(12px);background:#ffffffe6;border-bottom:1px solid #e5e5e5cc;position:sticky;top:0}.header-inner,.footer-inner{justify-content:space-between;align-items:center;gap:1rem;display:flex}.header-inner{min-height:72px}.header-inner nav,.footer-links{flex-wrap:wrap;align-items:center;gap:1rem;display:flex}.brand-link{border-radius:var(--radius);align-items:center;display:inline-flex}.brand-logo{object-fit:contain}.nav-link,.footer-links a{color:var(--muted-foreground);font-size:.9375rem;text-decoration:none}.nav-link:hover,.footer-links a:hover{color:var(--foreground)}.button{border-radius:var(--radius);background:var(--primary);min-height:46px;color:var(--primary-foreground);border:1px solid #0000;justify-content:center;align-items:center;padding:.75rem 1.125rem;font-weight:600;text-decoration:none;transition:background-color .15s,border-color .15s,box-shadow .15s;display:inline-flex}.button:hover{background:var(--primary-hover)}.button:focus-visible,.brand-link:focus-visible,.nav-link:focus-visible,.footer-links a:focus-visible{outline-offset:3px;outline:3px solid #2563eb40}.button-outline{border-color:var(--border);background:var(--background);color:var(--foreground)}.button-outline:hover{background:var(--muted);border-color:#d4d4d4}.button-small{min-height:40px;padding:.55rem .9rem;font-size:.9375rem}.hero{background:radial-gradient(circle at 85% 20%,#dbeafebf,#0000 28rem),linear-gradient(#fff,#fafafa);padding:5rem 0 4.5rem;overflow:hidden}.hero-grid{grid-template-columns:minmax(0,1fr) minmax(420px,.9fr);align-items:center;gap:4rem;display:grid}.eyebrow{color:var(--primary);letter-spacing:.08em;text-transform:uppercase;margin:0 0 .8rem;font-size:.875rem;font-weight:700}h1,h2,h3,p{margin-top:0}h1{letter-spacing:-.055em;max-width:760px;margin-bottom:1.25rem;font-size:clamp(2.6rem,6vw,4.75rem);line-height:1.02}h2{letter-spacing:-.04em;margin-bottom:1rem;font-size:clamp(2rem,4vw,3rem);line-height:1.1}h3{margin-bottom:.5rem;font-size:1.125rem}.hero-copy{max-width:620px;color:var(--muted-foreground);margin-bottom:1.75rem;font-size:clamp(1.05rem,2vw,1.25rem)}.hero-actions{flex-wrap:wrap;gap:.75rem;display:flex}.product-preview{border:1px solid var(--border);border-radius:calc(var(--radius) * 1.6);background:var(--background);box-shadow:var(--shadow);overflow:hidden;transform:rotate(1deg)}.preview-bar{border-bottom:1px solid var(--border);justify-content:space-between;align-items:center;gap:1rem;padding:1rem 1.1rem;display:flex}.preview-title{font-size:.925rem;font-weight:700}.status-badge{background:var(--success-soft);color:#065f46;border:1px solid #a7f3d0;border-radius:999px;padding:.25rem .55rem;font-size:.75rem;font-weight:700}.preview-body{padding:1.1rem}.student-row{border-bottom:1px solid var(--border);grid-template-columns:minmax(0,1fr) 110px 80px;align-items:center;gap:.75rem;padding:.9rem 0;display:grid}.student-row:last-child{border-bottom:0}.student{align-items:center;gap:.7rem;min-width:0;display:flex}.avatar{background:var(--selected);color:#1e3a8a;border-radius:50%;flex:none;place-items:center;width:34px;height:34px;font-size:.75rem;font-weight:800;display:grid}.student-name{text-overflow:ellipsis;white-space:nowrap;font-size:.875rem;font-weight:650;overflow:hidden}.progress-track{background:#e5e7eb;border-radius:999px;height:7px;overflow:hidden}.progress-value{border-radius:inherit;background:var(--primary);height:100%}.attendance{color:var(--success);text-align:left;font-size:.8rem;font-weight:700}.section{padding:5.5rem 0}.section-muted{border-block:1px solid var(--border);background:var(--muted)}.section-heading{max-width:680px;margin-bottom:2.5rem}.section-heading p,.feature-card p,.step p{color:var(--muted-foreground)}.feature-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:1rem;display:grid}.feature-card{border:1px solid var(--border);border-radius:calc(var(--radius) * 1.4);background:var(--background);padding:1.5rem}.feature-number{border:1px solid var(--selected-border);border-radius:var(--radius);background:var(--selected);color:#1e3a8a;place-items:center;width:2.25rem;height:2.25rem;margin-bottom:1.5rem;font-size:.8rem;font-weight:800;display:grid}.feature-card p,.step p{margin-bottom:0}.workflow{grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:2.5rem;display:grid}.steps{gap:1.5rem;display:grid}.step{border-left:2px solid var(--border);padding-left:1rem}.step:first-child{border-color:var(--primary)}.cta{border:1px solid var(--selected-border);border-radius:calc(var(--radius) * 1.6);background:#eff6ff;justify-content:space-between;align-items:center;gap:2rem;padding:clamp(1.5rem,4vw,2.5rem);display:flex}.cta h2{max-width:700px;margin-bottom:0}.site-footer{border-top:1px solid var(--border)}.footer-inner{min-height:92px}@media (width<=860px){.hero{padding-top:3.5rem}.hero-grid,.workflow{grid-template-columns:1fr}.hero-grid{gap:3rem}.product-preview{max-width:620px;transform:none}.feature-grid{grid-template-columns:1fr}.cta{flex-direction:column;align-items:flex-start}}@media (width<=560px){.container{width:min(100% - 1.25rem,1120px)}.nav-link{display:none}.hero{padding:3rem 0}h1{font-size:2.65rem}.section{padding:4rem 0}.student-row{grid-template-columns:minmax(0,1fr) 72px}.attendance{display:none}.footer-inner{flex-direction:column;align-items:flex-start;padding-block:1.25rem}.footer-links{flex-direction:column;align-items:flex-start}}@media 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