.auth-screen{position:fixed;inset:0;background:linear-gradient(135deg,#101828,#243b70);z-index:50;display:grid;place-items:center;padding:20px}.auth-screen.hidden{display:none}.auth-card{width:420px;max-width:100%;background:#fff;border-radius:18px;padding:30px;box-shadow:0 24px 70px #0005}.auth-brand{display:flex;align-items:center;gap:10px;font:800 20px Manrope;margin-bottom:22px}.auth-tabs{display:grid;grid-template-columns:1fr 1fr;background:#f2f4f7;padding:4px;border-radius:9px;margin-bottom:24px}.auth-tabs button{border:0;background:transparent;padding:9px;border-radius:7px;font:600 13px 'DM Sans';cursor:pointer}.auth-tabs button.active{background:#fff;box-shadow:0 1px 4px #10182822}.auth-card form h2{margin:0;font:700 23px Manrope}.auth-card form>p{color:#667085;font-size:13px;margin:6px 0 20px}.auth-card label{display:grid;gap:7px;font-size:12px;font-weight:600;margin:13px 0}.auth-card .full{width:100%;margin:10px 0 0}.class-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:15px}.class-card{padding:18px}.class-card-head{display:flex;justify-content:space-between;align-items:start}.class-badge{width:45px;height:45px;border-radius:10px;background:#eef2ff;color:#405bd3;display:grid;place-items:center;font:700 15px Manrope}.delete-btn{border:0;background:#fef3f2;color:#b42318;border-radius:7px;padding:7px 9px;cursor:pointer}.class-card h3{font-size:16px;margin:14px 0 5px}.class-card p{font-size:11px;color:#667085;margin:3px 0}.period-list{display:grid;gap:7px;margin:15px 0;max-height:300px;overflow:auto}.period-row{display:grid;grid-template-columns:36px 1fr 1fr auto;align-items:center;gap:8px;background:#f8f9fc;border-radius:8px;padding:9px}.period-row b{font-size:12px}.period-row span{font-size:11px;color:#667085}.period-add{display:grid;grid-template-columns:1.3fr 1fr 1fr auto;gap:7px;border-top:1px solid #e7eaf0;padding-top:14px}.period-add input{min-width:0}@media(max-width:850px){.class-grid{grid-template-columns:1fr 1fr}}@media(max-width:600px){.class-grid{grid-template-columns:1fr}.period-add{grid-template-columns:1fr 1fr}.period-add input:first-child{grid-column:span 2}}