.br_768, .br_540 {display: none;}

html:has(#serverChk),
body:has(#serverChk) {
    background: #f7f7f7;
}

#serverChk {
    position: relative;
    min-height: 100vh;
    background: #f7f7f7;
    overflow: hidden;
}

#serverChk *,
#serverChk *::before,
#serverChk *::after {
    box-sizing: border-box;
}

#serverChk .bg_pattern {
    position: absolute;
    left: 50%;
    bottom: 0;
    width: 192rem;
    height: 97rem;
    transform: translateX(-50%);
    opacity: 0.05;
    pointer-events: none;
    box-shadow: 0 0.4rem 0.4rem rgba(0, 0, 0, 0.25);
}

#serverChk .bg_pattern img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    max-width: none;
    object-fit: cover;
}

#serverChk .bg_fade {
    position: absolute;
    inset: 0;
    background: linear-gradient(to left, rgba(255, 255, 255, 0) 0%, #fff 50%, rgba(255, 255, 255, 0) 100%);
}

#serverChk .server_inner {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    padding: 8rem 0 8rem;
}

#serverChk .alert_icon {
    width: 12rem;
    height: 12rem;
    max-width: none;
    margin: 0 0 4rem;
    object-fit: cover;
    transform: translateX(1rem);
}

#serverChk .title {
    margin: 0 0 3rem;
    color: #222;
    font-size: 3.6rem;
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.72px;
    text-align: center;
    white-space: nowrap;
}

#serverChk .desc {
    margin: 0 0 4rem;
    color: #555;
    font-size: 1.8rem;
    font-weight: 400;
    line-height: 1;
    letter-spacing: -0.36px;
    text-align: center;
    white-space: nowrap;
}

#serverChk .desc strong {
    font-weight: 700;
}

#serverChk .info_list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    width: min(80rem, calc(100% - 4rem));
    margin: 0 0 4rem;
}

#serverChk .info_row {
    display: flex;
    align-items: center;
    width: 100%;
    height: 6rem;
    background: #fff;
    border-radius: 0.8rem;
    overflow: hidden;
}

#serverChk .info_label {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 18rem;
    height: 6rem;
    background: var(--blue);
    border-radius: 0.8rem;
    color: #fff;
    font-size: 2rem;
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.4px;
    text-align: center;
}

#serverChk .info_value {
    flex: 1;
    color: #222;
    font-size: 2rem;
    font-weight: 400;
    line-height: 1;
    text-align: center;
}

#serverChk .info_value.is_accent {
    color: var(--blue);
    font-weight: 700;
}

#serverChk .divider {
    position: relative;
    width: min(80rem, calc(100% - 4rem));
    height: 0;
    margin: 0 0 4rem;
}

#serverChk .divider img {
    position: absolute;
    left: 0;
    top: 0;
    display: block;
    width: 100%;
    height: 1px;
    max-width: none;
    object-fit: fill;
}

#serverChk .guide {
    margin: 0 0 2.8rem;
    color: #222;
    font-size: 2.2rem;
    font-weight: 400;
    line-height: 1;
    letter-spacing: -0.44px;
    text-align: center;
    white-space: nowrap;
}

#serverChk .guide strong {
    font-weight: 700;
}

#serverChk .course {
    position: relative;
    width: min(80rem, calc(100% - 4rem));
    height: 20rem;
    margin: 0 0 4rem;
    border-radius: 0.8rem;
    overflow: hidden;
}

#serverChk .course_bg {
    position: absolute;
    left: 0;
    top: -87.61%;
    width: 100%;
    height: 205.66%;
    max-width: none;
    object-fit: fill;
}

#serverChk .course_dim {
    position: absolute;
    inset: 0;
    background:
        linear-gradient(90deg, rgba(0, 0, 0, 0.2) 0%, rgba(0, 0, 0, 0.2) 100%),
        linear-gradient(90deg, rgba(30, 64, 121, 0.6) 0%, rgba(30, 64, 121, 0.6) 100%);
}

#serverChk .course_body {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100%;
    padding-top: 5rem;
}

#serverChk .course_name {
    margin: 0 2rem 4rem;
    color: #fff;
    font-size: 2rem;
    font-weight: 600;
    line-height: 1;
    letter-spacing: -0.4px;
    text-align: center;
    white-space: nowrap;
}

#serverChk .apply_btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: min(62rem, calc(100% - 4rem));
    height: 6rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 5rem;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(7.5px);
    -webkit-backdrop-filter: blur(7.5px);
    color: #fff;
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 1;
    letter-spacing: -0.36px;
    text-align: center;
    white-space: nowrap;
    transition: background 0.2s ease;
}

#serverChk .apply_btn:hover {
    background: rgba(255, 255, 255, 0.14);
}

#serverChk .apply_btn:focus-visible {
    outline: 2px solid #fff;
    outline-offset: 2px;
}

#serverChk .note {
    margin: 0 0 2rem;
    color: #666;
    font-size: 1.6rem;
    font-weight: 400;
    line-height: 1;
    letter-spacing: -0.32px;
    text-align: center;
    white-space: nowrap;
}

#serverChk .closing {
    margin: 0;
    color: #222;
    font-size: 1.8rem;
    font-weight: 600;
    line-height: 1;
    letter-spacing: -0.36px;
    text-align: center;
    white-space: nowrap;
}

@media (max-width: 900px) {
    #serverChk .title,
    #serverChk .desc,
    #serverChk .guide,
    #serverChk .course_name,
    #serverChk .note,
    #serverChk .closing {
        width: min(80rem, calc(100% - 4rem));
        white-space: normal;
        word-break: keep-all;
    }

    #serverChk .server_inner {
        padding: 7rem 0;
    }

    #serverChk .alert_icon {
        margin: 0 0 3rem;
    }

    #serverChk .title {
        font-size: 2.8rem;
        margin: 0 0 2.5rem;
        line-height: 1.35;
    }

    #serverChk .desc {
        margin: 0 0 3.5rem;
    }

    #serverChk .desc,
    #serverChk .guide,
    #serverChk .note,
    #serverChk .closing {
        line-height: 1.5;
    }

    #serverChk .info_row {
        height: 5.5rem;
    }

    #serverChk .info_label {
        flex-basis: 10rem;
        font-size: 1.6rem;
    }

    #serverChk .info_value {
        padding: 0 1.2rem;
        font-size: 1.55rem;
        word-break: keep-all;
    }

    #serverChk .desc {
        font-size: 1.5rem;
    }

    #serverChk .course {
        height: auto;
        min-height: 20rem;
    }

    #serverChk .course_bg {
        top: 0;
        height: 100%;
        object-fit: cover;
    }

    #serverChk .course_body {
        height: auto;
        padding: 3.6rem 1.6rem;
    }

    #serverChk .course_name {
        margin-bottom: 2.4rem;
        line-height: 1.45;
    }

    #serverChk .guide {
        font-size: 1.875rem;
    }
}

@media (max-width: 540px) {
    .br_540 {display: block;}
}