:root{--navy:#0b2d5c;--blue:#1d5fbd;--sky:#67a8f5;--ice:#eef5ff;--ink:#14243d;--muted:#60728d;--line:#d6e3f4;--white:#fff;--gold:#f4c75d;--good:#246b47;--warn:#8a5a00;--bad:#9a3030;--shadow:0 14px 40px rgba(11,45,92,.13);--radius:18px}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"Segoe UI",Arial,sans-serif;background:var(--ice);color:var(--ink);line-height:1.5}a{color:var(--blue)}button,input,select,textarea{font:inherit}button{cursor:pointer}.container{width:min(1180px,calc(100% - 32px));margin:auto}.topbar{background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(10px)}.topbar-inner{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}.brand-mark{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;color:#fff;background:linear-gradient(135deg,var(--navy),var(--sky));font-weight:900}.brand small{display:block;color:var(--muted)}.nav-actions{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:11px;padding:11px 16px;background:var(--blue);color:#fff;text-decoration:none;font-weight:800}.btn:hover{filter:brightness(1.05)}.btn.secondary{background:#fff;color:var(--navy);border:1px solid #bcd1ed}.btn.light{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.45);color:#fff}.hero{position:relative;overflow:hidden;color:#fff;background-image:linear-gradient(135deg,rgba(7,39,87,.98),rgba(29,95,189,.94) 60%,rgba(103,168,245,.91)),url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 900 900'%3E%3Cg fill='none' stroke='rgba(255,255,255,0.23)' stroke-width='3'%3E%3Ccircle cx='450' cy='450' r='300'/%3E%3Ccircle cx='450' cy='450' r='225'/%3E%3Ccircle cx='450' cy='450' r='150'/%3E%3Cellipse cx='450' cy='450' rx='300' ry='120'/%3E%3Cellipse cx='450' cy='450' rx='300' ry='210'/%3E%3Cellipse cx='450' cy='450' rx='120' ry='300'/%3E%3Cellipse cx='450' cy='450' rx='210' ry='300'/%3E%3C/g%3E%3C/svg%3E");background-repeat:no-repeat;background-size:cover,780px;background-position:center,right -130px center}.hero-inner{min-height:570px;display:grid;grid-template-columns:1.3fr .7fr;gap:40px;align-items:center;padding:70px 0}.kicker{text-transform:uppercase;letter-spacing:.1em;font-size:.82rem;font-weight:900;color:#dbeaff}.hero h1{font-size:clamp(2.55rem,6vw,5.2rem);line-height:1.02;margin:10px 0 18px;max-width:900px}.hero p{font-size:1.12rem;max-width:760px;color:#edf5ff}.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}.welcome-strip{display:flex;gap:8px;flex-wrap:wrap;margin-top:26px}.welcome-strip span{background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.25);padding:7px 11px;border-radius:999px;font-weight:700;font-size:.84rem}.globe-card{min-height:300px;border-radius:28px;background:rgba(255,255,255,.11);border:1px solid rgba(255,255,255,.24);display:grid;place-items:center;text-align:center;padding:28px;backdrop-filter:blur(8px);box-shadow:0 24px 60px rgba(0,0,0,.18)}.globe{font-size:7rem;width:175px;height:175px;display:grid;place-items:center;border-radius:50%;background:radial-gradient(circle at 32% 28%,#f9fcff,#bcd9ff 55%,#72a9f0);box-shadow:inset 0 0 0 11px rgba(255,255,255,.17)}.section{padding:64px 0}.section-title{font-size:clamp(1.8rem,3vw,2.6rem);margin:0 0 10px}.section-lead{color:var(--muted);max-width:820px;margin:0 0 28px}.grid{display:grid;gap:18px}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow)}.card h3{margin-top:0}.icon{width:40px;height:40px;border-radius:12px;background:#e7f1ff;color:var(--navy);display:grid;place-items:center;font-weight:900;margin-bottom:16px}.resource-list{display:grid;gap:12px}.resource{display:flex;justify-content:space-between;align-items:center;gap:18px;padding:16px;border:1px solid var(--line);border-radius:14px;background:#fff}.resource span{color:var(--muted);font-size:.9rem}.privacy-note{background:#fff8df;border:1px solid #ecd995;border-radius:15px;padding:18px;color:#4b3c08}.footer{padding:28px 0;background:var(--navy);color:#e8f2ff}.footer a{color:#fff}.auth-shell{min-height:100vh;background:linear-gradient(180deg,#eef5ff,#dcecff);padding:40px 16px}.auth-card{width:min(520px,100%);margin:7vh auto;background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);padding:28px}.auth-card h1{margin-top:0}.field{display:grid;gap:7px;margin-bottom:14px}.field label{font-weight:800}.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:10px;padding:11px 12px;background:#fff}.field textarea{min-height:105px;resize:vertical}.status{padding:11px 13px;border-radius:10px;background:#edf4ff;color:var(--navy);margin:12px 0}.status.error{background:#ffeded;color:var(--bad)}.status.success{background:#eaf6ef;color:var(--good)}.app{min-height:100vh;background:#eef5ff}.app-header{background:#fff;border-bottom:1px solid var(--line);padding:14px 20px;display:flex;align-items:center;justify-content:space-between;gap:15px;position:sticky;top:0;z-index:10}.app-layout{display:grid;grid-template-columns:250px 1fr;min-height:calc(100vh - 72px)}.sidebar{background:var(--navy);color:#fff;padding:20px 14px}.sidebar button{width:100%;text-align:left;border:0;background:transparent;color:#e7f1ff;padding:11px;border-radius:10px;font-weight:700}.sidebar button:hover,.sidebar button.active{background:rgba(255,255,255,.13)}.app-main{padding:26px;min-width:0}.page-head{display:flex;justify-content:space-between;align-items:flex-start;gap:16px;margin-bottom:20px}.page-head h2{margin:0}.muted{color:var(--muted)}.metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}.metric strong{display:block;font-size:1.8rem;color:var(--blue)}.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:14px;background:#fff}.table-wrap table{width:100%;border-collapse:collapse;min-width:720px}.table-wrap th,.table-wrap td{padding:12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.table-wrap th{background:#f2f7ff;color:#35577f;font-size:.82rem;text-transform:uppercase}.badge{display:inline-block;padding:4px 9px;border-radius:999px;background:#e7f1ff;color:var(--navy);font-weight:800;font-size:.77rem}.assignment{margin-bottom:16px}.assignment h3{margin-bottom:5px}.assignment-meta{display:flex;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:.88rem}.progress-row{display:grid;grid-template-columns:160px 1fr 55px;gap:12px;align-items:center;margin:13px 0}.track{height:12px;border-radius:999px;background:#e3ebf6;overflow:hidden}.fill{height:100%;background:linear-gradient(90deg,var(--navy),var(--sky))}.hidden{display:none!important}.empty{text-align:center;padding:34px;border:1px dashed #b8cce8;border-radius:14px;color:var(--muted)}
@media(max-width:900px){.hero-inner{grid-template-columns:1fr}.globe-card{min-height:220px}.grid.three{grid-template-columns:1fr 1fr}.metrics{grid-template-columns:1fr 1fr}.app-layout{grid-template-columns:1fr}.sidebar{display:flex;overflow:auto;position:sticky;top:72px;z-index:9;padding:8px}.sidebar button{min-width:max-content}.app-main{padding:18px}}
@media(max-width:620px){.topbar-inner{align-items:flex-start;padding:12px 0}.nav-actions{width:100%}.hero-inner{padding:50px 0}.globe-card{display:none}.grid.two,.grid.three,.metrics{grid-template-columns:1fr}.resource{align-items:flex-start;flex-direction:column}.page-head{flex-direction:column}.progress-row{grid-template-columns:110px 1fr 48px}}