* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: "Poppins", sans-serif;
    background: #f7f9fc;
    color: #1b2738;
}


/* HEADER */

.site-header {

    min-height: 112px;

    padding: 15px 55px;

    display: flex;

    align-items: center;

    justify-content: space-between;

    background: #123b63;

    border-bottom: 4px solid #d4a84f;
}


.logo-box {

    width: 76px;
    height: 76px;

    padding: 6px;

    background: white;

    border-radius: 5px;
}


.logo-box img {

    width: 100%;
    height: 100%;

    object-fit: contain;
}


.header-title {

    max-width: 900px;

    padding: 0 25px;

    text-align: center;

    color: white;
}


.header-title h1 {

    font-size: 27px;

    line-height: 1.35;

    font-weight: 600;
}


.header-title p {

    margin-top: 7px;

    color: #dce7ef;

    font-size: 13px;
}


/* NAVBAR */

.navbar {

    min-height: 58px;

    display: flex;

    align-items: center;

    justify-content: center;

    gap: 32px;

    background: white;

    border-bottom: 1px solid #e1e6eb;

    position: sticky;

    top: 0;

    z-index: 1000;
}


.navbar a {

    padding: 19px 0;

    color: #26384c;

    text-decoration: none;

    font-size: 14px;

    font-weight: 500;
}


.navbar a:hover,
.navbar .active {

    color: #123b63;
}


/* INSTITUTION STRIP */

.institution-strip {

    width: calc(100% - 50px);

    max-width: 1200px;

    margin: auto;

    padding: 10px 20px;

    display: flex;

    justify-content: space-between;

    background: #f3f6f9;

    border-left: 4px solid #d4a84f;

    color: #64748b;

    font-size: 11px;
}


.institution-strip strong {

    color: #123b63;
}


/* HERO */

.detail-hero {

    max-width: 950px;

    margin: auto;

    padding: 65px 25px 45px;

    text-align: center;
}


.eyebrow {

    color: #a9823b;

    font-size: 11px;

    font-weight: 700;

    letter-spacing: 2px;
}


.detail-hero h2 {

    margin: 12px 0;

    color: #123b63;

    font-size: 40px;

    line-height: 1.3;

    font-weight: 600;
}


.detail-hero p {

    max-width: 750px;

    margin: auto;

    color: #64748b;

    font-size: 13px;

    line-height: 1.8;
}


/* CONTENT */

.detail-content {

    max-width: 1000px;

    margin: auto;

    padding: 0 25px 75px;
}


/* LARGE IMAGE */

.detail-image {

    width: 100%;

    height: 390px;

    margin-bottom: 30px;

    overflow: hidden;

    background: #e5ebf0;
}


.detail-image img {

    width: 100%;
    height: 100%;

    object-fit: cover;
}


/* CONTENT SECTIONS */

.detail-section {

    display: grid;

    grid-template-columns: 55px 1fr;

    gap: 20px;

    padding: 28px;

    margin-bottom: 18px;

    background: white;

    border: 1px solid #dfe6ed;

    border-left: 4px solid #123b63;
}


.number {

    color: #c09645;

    font-size: 12px;

    font-weight: 700;
}


.detail-section h2 {

    margin-bottom: 9px;

    color: #123b63;

    font-size: 21px;

    font-weight: 600;
}


.detail-section p {

    color: #64748b;

    font-size: 13px;

    line-height: 1.8;
}


/* PREVIOUS / NEXT */

.page-navigation {

    margin-top: 40px;

    padding-top: 25px;

    border-top: 1px solid #dfe6ed;

    display: flex;

    justify-content: space-between;

    align-items: center;

    gap: 12px;
}


.page-navigation a {

    padding: 12px 17px;

    background: white;

    border: 1px solid #d7e0e7;

    color: #123b63;

    text-decoration: none;

    font-size: 11px;

    font-weight: 600;

    transition: .25s;
}


.page-navigation a:hover {

    background: #123b63;

    color: white;

    border-color: #123b63;
}


/* FOOTER */

.footer {

    padding: 22px;

    background: #0d2d4b;

    color: #dce6ef;

    text-align: center;

    font-size: 11px;
}


/* BACK TO TOP */

#backToTop {

    position: fixed;

    right: 25px;

    bottom: 25px;

    width: 46px;

    height: 46px;

    border: none;

    border-radius: 50%;

    background: #123b63;

    color: white;

    font-size: 21px;

    cursor: pointer;

    opacity: 0;

    visibility: hidden;

    transition: .3s;

    z-index: 9999;
}


#backToTop.show {

    opacity: 1;

    visibility: visible;
}


#backToTop:hover {

    background: #d4a84f;

    color: #123b63;
}


/* MOBILE */

@media(max-width:700px) {

    .site-header {

        flex-direction: column;

        gap: 14px;

        padding: 18px 20px;
    }

    .header-title {

        padding: 0;
    }

    .header-title h1 {

        font-size: 22px;
    }

    .logo-box {

        width: 70px;
        height: 70px;
    }

    .navbar {

        flex-wrap: wrap;

        gap: 8px 20px;

        padding: 10px 15px;
    }

    .navbar a {

        padding: 7px 0;
    }

    .institution-strip {

        width: calc(100% - 30px);

        flex-direction: column;

        text-align: center;

        gap: 5px;
    }

    .detail-hero h2 {

        font-size: 31px;
    }

    .detail-image {

        height: 250px;
    }

    .detail-section {

        grid-template-columns: 1fr;

        padding: 24px;
    }

    .page-navigation {

        flex-direction: column;

        align-items: stretch;
    }

    .page-navigation a {

        text-align: center;
    }

}