:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:#09111f;color:#f8fafc}*{box-sizing:border-box}html,body{min-height:100%;margin:0}body{background:radial-gradient(circle at 20% 20%,rgba(45,212,191,.18),transparent 28%),radial-gradient(circle at 85% 80%,rgba(59,130,246,.2),transparent 32%),linear-gradient(145deg,#07111d,#102a2f 55%,#0b1730)}button,input{font:inherit}.access-shell{min-height:100vh;display:grid;place-items:center;padding:24px}.access-card{width:min(100%,500px);padding:34px;border:1px solid rgba(94,234,212,.25);border-radius:26px;background:rgba(8,20,32,.9);box-shadow:0 30px 90px rgba(0,0,0,.45)}.brand{display:flex;align-items:center;gap:12px}.brand-mark{display:grid;place-items:center;width:46px;height:46px;border-radius:14px;background:linear-gradient(135deg,#5eead4,#60a5fa);color:#06111f;font-size:24px;font-weight:900}.brand div{display:grid}.brand span{color:#9fb2c8;font-size:13px}.course-heading{margin:38px 0 26px}.eyebrow{color:#5eead4;font-size:12px;font-weight:800;letter-spacing:.14em}.course-heading h1{margin:8px 0;font-size:clamp(36px,8vw,54px);line-height:1}.course-heading p{color:#bfd0df}.auth-tabs{display:grid;grid-template-columns:1fr 1fr;gap:6px;margin-bottom:20px;padding:5px;border-radius:14px;background:#0f2233}.auth-tab{padding:11px;border:0;border-radius:10px;background:transparent;color:#9db0c2;cursor:pointer}.auth-tab.active{background:#234158;color:white;font-weight:700}form{display:grid;gap:10px}label{margin-top:5px;font-size:14px;font-weight:700}input{width:100%;padding:14px;border:1px solid #385267;border-radius:12px;background:#081522;color:white}input:focus{outline:none;border-color:#5eead4;box-shadow:0 0 0 3px rgba(94,234,212,.15)}.primary-button{min-height:50px;margin-top:14px;border:0;border-radius:13px;background:linear-gradient(100deg,#5eead4,#60a5fa);color:#06111f;font-weight:850;cursor:pointer}.notice{margin:18px 0;padding:13px 14px;border:1px solid rgba(94,234,212,.35);border-radius:12px;background:rgba(45,212,191,.1);color:#dcfffa}.notice-error{border-color:rgba(251,113,133,.45);background:rgba(159,18,57,.2);color:#ffe4e8}.access-progress{text-align:center;padding:20px 0}.sign-out{position:fixed;right:16px;bottom:16px;padding:10px 14px;border:1px solid rgba(255,255,255,.18);border-radius:999px;background:rgba(8,20,32,.9);color:white;cursor:pointer}.access-help{color:#8ea3b7;font-size:12px;text-align:center;line-height:1.5}