:root{--ink:#17233b;--muted:#667085;--line:#e7eaf0;--bg:#f6f7fb;--blue:#3157d5;--navy:#11264b;--white:#fff;--green:#15966a;--amber:#e49b2d}*{box-sizing:border-box}html{font-family:Inter,"Segoe UI",Arial,sans-serif;color:var(--ink);background:var(--bg)}body{margin:0;min-height:100vh}a{color:inherit;text-decoration:none}.topbar{height:76px;background:var(--white);border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;padding:0 max(24px,calc((100vw - 1180px)/2));position:sticky;top:0;z-index:10}.brand,.mobile-brand{display:flex;gap:12px;align-items:center;font-weight:800}.brand-mark{width:40px;height:40px;border-radius:12px;background:linear-gradient(145deg,#3157d5,#142b62);color:#fff;display:grid;place-items:center;font-size:15px;box-shadow:0 6px 15px #3157d533}.brand small{display:block;color:var(--muted);font-size:11px;font-weight:500}.topbar nav{display:flex;gap:20px;align-items:center}.student-name{font-weight:600}.logout{padding:9px 14px;border:1px solid var(--line);border-radius:10px;font-size:14px}.shell{max-width:1180px;margin:auto;padding:38px 24px 64px}.hero{background:linear-gradient(120deg,var(--navy),#274b8e);border-radius:24px;padding:38px 42px;color:#fff;display:flex;justify-content:space-between;align-items:center;box-shadow:0 18px 45px #172b5725}.hero h1,.course-hero h1{font-size:34px;margin:7px 0}.hero p,.course-hero p{margin:0;color:#dce6fb}.eyebrow{font-size:11px;font-weight:800;letter-spacing:1.7px;color:#819cff}.hero .eyebrow,.course-hero .eyebrow{color:#a9c2ff}.class-chip{min-width:210px;padding:19px 22px;border-radius:16px;background:#ffffff14;border:1px solid #ffffff20}.class-chip small,.class-chip span{display:block;color:#cbd7ef}.class-chip strong{display:block;font-size:21px;margin:4px 0}.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin:22px 0 42px}.stats article{background:#fff;border:1px solid var(--line);border-radius:17px;padding:21px;display:flex;align-items:center;gap:15px}.stats strong,.stats span{display:block}.stats strong{font-size:25px}.stats article div span{font-size:13px;color:var(--muted)}.stat-icon,.list-icon{width:45px;height:45px;border-radius:13px;display:grid;place-items:center;background:#eaf0ff;color:var(--blue);font-weight:800}.stat-icon.amber,.list-icon.amber{background:#fff2da;color:var(--amber)}.stat-icon.green{background:#e5f7f0;color:var(--green)}.section-heading{display:flex;align-items:end;justify-content:space-between;margin:0 0 17px}.section-heading h2{margin:3px 0;font-size:24px}.course-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:19px}.course-card{background:#fff;border:1px solid var(--line);border-top:4px solid #3157d5;border-radius:17px;padding:23px;transition:.2s transform,.2s box-shadow}.course-card:hover{transform:translateY(-3px);box-shadow:0 14px 30px #24315216}.course-card.accent-2{border-top-color:#15966a}.course-card.accent-3{border-top-color:#e49b2d}.course-card.accent-4{border-top-color:#8a58cb}.course-code{font-size:11px;font-weight:800;letter-spacing:1.2px;color:var(--blue)}.course-card h3{margin:13px 0 6px}.course-card p{margin:0;color:var(--muted);font-size:14px}.course-meta{display:flex;gap:14px;margin-top:24px;padding-top:15px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}.empty{background:#fff;border:1px dashed #ccd2de;border-radius:18px;text-align:center;padding:55px 24px}.empty>span{font-size:35px;color:#94a3b8}.empty h3{margin-bottom:7px}.empty p{color:var(--muted);margin:0}.empty.compact{padding:28px}.login-shell{min-height:calc(100vh - 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