@charset "utf-8";
.lesson-hero{

    background:
    linear-gradient(
        135deg,
        #e5f1ff,
        #d8ebff
    );

    border-radius:20px;

    padding:28px;

    margin-bottom:25px;

    box-shadow:
    0 8px 24px rgba(0,0,0,.08);

}

.lesson-hero h1{

    margin:0;

    font-size:38px;

    font-weight:800;

    color:#0b3d91;

}

.lesson-meta{

    margin-top:15px;

    display:flex;

    gap:12px;

    flex-wrap:wrap;

}

.lesson-meta span{

    background:#fff;

    color:#35516d;

    padding:8px 14px;

    border-radius:999px;

    font-size:14px;

}

.unit-nav-card{

    background:#fff;

    border-radius:18px;

    padding:24px;

    margin-bottom:25px;

    box-shadow:
    0 6px 20px rgba(0,0,0,.05);

}

.unit-nav{

    display:flex;

    flex-wrap:wrap;

    gap:12px;

}

.unit-btn{

    display:inline-flex;

    align-items:center;

    justify-content:center;

    padding:10px 18px;

    border-radius:999px;

    background:#eef6ff;

    color:#2563eb;

    text-decoration:none;

    font-size:15px;

    font-weight:600;

    transition:.25s ease;

}

.unit-btn:hover{

    background:#2563eb;

    color:#fff;

    transform:translateY(-2px);

}

.unit-card{

    background:#fff;

    border-radius:18px;

    padding:24px;

    margin-bottom:22px;

    box-shadow:
    0 6px 20px rgba(0,0,0,.05);

}

.unit-header{

    display:flex;

    justify-content:space-between;

    align-items:center;

    margin-bottom:18px;

}

.unit-header h3{

    margin:0;

    color:#386fa4;

    font-size:22px;

    font-weight:700;

}

.view-all{

    text-decoration:none;

    color:#2563eb;

    font-size:14px;

    font-weight:600;

}

.view-all:hover{

    color:#0b3d91;

}


.word-grid{

    display:grid;

    grid-template-columns:
    repeat(auto-fill,minmax(120px,1fr));

    gap:12px;

}

.word-item{

    display:flex;

    justify-content:center;

    align-items:center;

    min-height:44px;

    padding:8px;

    border-radius:12px;

    background:#f8fbff;

    text-decoration:none;

    color:#31475d;

    font-size:15px;

    transition:.25s ease;

}

.word-item:hover{

    background:#4f8cff;

    color:#fff;

    transform:translateY(-2px);

}


@media(max-width:768px){

    .lesson-hero{

        padding:20px;

    }

    .lesson-hero h1{

        font-size:28px;

    }

    .unit-nav-card{

        padding:18px;

    }

    .unit-card{

        padding:18px;

    }

    .unit-header{

        flex-direction:column;

        align-items:flex-start;

        gap:8px;

    }

    .unit-header h3{

        font-size:18px;

    }

    .word-grid{

        grid-template-columns:
        repeat(2,1fr);

        gap:10px;

    }

    .word-item{

        font-size:14px;

    }

}