:root{--ink:#172033;--muted:#6f7890;--line:#e5e9f2;--panel:#fff;--bg:#f7f8fc;--violet:#6d4aff;--violet2:#8b5cf6;--nav:#11172a;--green:#0f9f6e;--amber:#d78b16}*{box-sizing:border-box}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg)}a{text-decoration:none;color:inherit}.landing{background:#fff}.landing .nav{height:76px;display:flex;align-items:center;justify-content:space-between;max-width:1180px;margin:auto;padding:0 24px}.brand{display:flex;gap:11px;align-items:center;font-weight:800}.brand small{display:block;color:#8a91a6;font-weight:600;font-size:11px}.brandmark{width:42px;height:42px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,var(--violet),#a855f7);color:#fff}.nav-actions{display:flex;gap:10px}.btn{border:0;border-radius:12px;padding:11px 17px;font-weight:750;display:inline-flex;align-items:center;justify-content:center;gap:7px;cursor:pointer}.btn-primary{background:linear-gradient(135deg,var(--violet),var(--violet2));color:#fff;box-shadow:0 10px 28px #6d4aff2b}.btn-light{background:#fff;border:1px solid var(--line)}.btn-soft{background:#f0edff;color:#6040dc}.btn-danger{background:#fff1f2;color:#c92b43}.hero{max-width:1180px;margin:0 auto;padding:88px 24px 70px;display:grid;grid-template-columns:1.02fr .98fr;gap:60px;align-items:center}.eyebrow{display:inline-flex;padding:8px 12px;border-radius:999px;background:#f2efff;color:#6040dc;font-weight:800;font-size:13px}.hero h1{font-size:58px;line-height:1.02;letter-spacing:-2.4px;margin:20px 0}.hero p{font-size:19px;line-height:1.7;color:var(--muted);max-width:610px}.hero-actions{display:flex;gap:12px;margin-top:28px}.hero-art{position:relative;background:linear-gradient(145deg,#f5f2ff,#edf4ff);border-radius:32px;padding:24px;min-height:450px;box-shadow:inset 0 0 0 1px #e5e0ff}.dashmock{background:#fff;border:1px solid #e7e9f2;border-radius:22px;padding:20px;box-shadow:0 30px 60px #424a721c}.mock-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.metric{padding:16px;border-radius:16px;background:#f8f9fd}.metric b{font-size:28px;display:block}.student-line{display:flex;align-items:center;gap:12px;padding:13px 0;border-bottom:1px solid var(--line)}.avatar{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:#eeeaff;color:#6040dc;font-weight:800}.progress{height:8px;background:#eceef5;border-radius:999px;overflow:hidden}.progress span{display:block;height:100%;background:linear-gradient(90deg,var(--violet),#9b70ff)}.float-card{position:absolute;background:#fff;border:1px solid #e6e8f0;border-radius:15px;padding:12px 15px;box-shadow:0 18px 40px #3841641f;font-weight:700}.fc1{right:-12px;top:48px}.fc2{left:-24px;bottom:58px}.section{max-width:1180px;margin:auto;padding:80px 24px}.section h2{text-align:center;font-size:38px;letter-spacing:-1.2px;margin:0 0 14px}.section>.lead{text-align:center;color:var(--muted);max-width:720px;margin:0 auto 42px;font-size:18px}.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.feature{border:1px solid var(--line);border-radius:20px;padding:24px;background:#fff}.feature .ico{width:46px;height:46px;border-radius:14px;background:#f1eeff;display:grid;place-items:center;font-size:22px}.feature h3{margin:16px 0 8px}.feature p{color:var(--muted);line-height:1.6}.cta-band{margin:30px auto 90px;max-width:1132px;border-radius:28px;padding:55px;background:linear-gradient(135deg,#191e3a,#6442ed);color:#fff;text-align:center}.cta-band h2{font-size:38px;margin:0 0 12px}.shell{display:flex;min-height:100vh}.sidebar{width:250px;background:var(--nav);color:#fff;padding:24px 18px;position:fixed;inset:0 auto 0 0;display:flex;flex-direction:column}.sidebar .brand{padding:0 8px 22px}.sidebar nav{display:grid;gap:5px}.sidebar nav a{padding:12px;border-radius:11px;color:#cfd5e8;font-weight:650}.sidebar nav a:hover{background:#202944;color:#fff}.sidebar-foot{margin-top:auto;border-top:1px solid #2c3550;padding-top:16px;color:#cbd1e0}.mini-user{display:grid;gap:2px;margin-bottom:10px}.mini-user small{color:#8892ac;overflow:hidden;text-overflow:ellipsis}.main{margin-left:250px;min-width:0;width:calc(100% - 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