:root {
    --hover-timing: 0.8s;
    --hover-bezier: cubic-bezier(0.77, 0, 0.16, 1.1);
    --hover-bezier-2: cubic-bezier(0.23, 1, 0.3, 2);
}

header#hero-header {
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding-bottom: 8rem;
    height: calc(100vh - 117.2px);
}

.hero {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    padding: 0 2rem 2rem 3rem;
}

.hero-left {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 4rem;
}

.hero h1 {
    font-size: 88px;
}

.hero-subtitle, 
p, 
.tag {
    color: var(--offwhite);
}

.hero-subtitle {
    font-family: 'nhg', sans-serif;
    font-weight: 400;
    font-size: 22px;
    line-height: 1.65;
    margin-bottom: 0.8rem;
    letter-spacing: 0em;
}

.course-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 6cqw;
    padding: 0 5.6cqw
}

.section-title {
    margin: 0;
    padding-bottom: 4rem;
}

.course-card:nth-of-type(1) {
    grid-column: 1; 
    grid-row: 1; 
}

.course-card:nth-of-type(2) {
    grid-column: 2; 
    grid-row: 1;   
}

.course-card:nth-of-type(3) {
    grid-column: 1; 
    grid-row: 2;  
}

.course-card:nth-of-type(4) {
    grid-column: 2; 
    grid-row: 2;  
}

.course-card {
    padding: 1.5rem;
    padding-bottom: 2.5rem;
    background-color: var(--white);
    margin: 0;
    min-height: 36em;
    transition: background-color 0.5s var(--hover-bezier);
    transition: transform 0.3s ease;
}

.course-card:hover {
    transform: rotate(2deg);
    cursor: pointer;
}

.course-content {
    display: flex;
    color: var(--black);
    flex-direction: column;
    justify-content: space-between;
    height: 100%;
}

.course-card-top {
    margin-bottom: 2rem;
}

.course-image {
    height: 13.5em;
    width: 100%;
    margin-bottom: 0.5rem;
    overflow: hidden;
    transition: border 0.5s var(--hover-bezier);
    transition: background-color 0.5s var(--hover-bezier)
}

.e2ee .course-image {
    background-color: var(--c-1);
}

.security .course-image {
    background-color: var(--c-2);
}

.spa .course-image {
    background-color: var(--c-3);
}

.pagination .course-image {
    background-color: var(--c-4);
}

.course-card .course-image svg {
    display: block;
    width: 100%;
    height: auto;
    transition: transform var(--hover-timing) var(--hover-bezier);
    transform-origin: center;   
}

.course-content p {
    color: var(--black);
}

.course-description {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding-top: 0.75rem;
}

.course-description p {
    letter-spacing: -0.008em;
}

.course-description-title {
    margin-bottom: 0.5rem;
    overflow: hidden;
    padding-bottom: 0.2rem;
    letter-spacing: -0.04em;
    font-size: 56.7px;
}

.course-tags {
    display: flex;
    flex-direction: column;
    gap: 0.32rem;
}

.course-tags-row {
    display: flex;
    gap: 0.32rem;
}

.tag {
    font-family: 'nhg';
    width: fit-content;
    font-size: 17.5px;
    letter-spacing: -0.008em;
    border: 1.5px solid var(--black);
    padding: 0.5rem 0.7rem 0.5rem 0.7rem;
    white-space: nowrap;
    color: var(--black);
    background-color: transparent;
    overflow: hidden;
    display: inline-block;
    position: relative;
}

.tag span {
    position: relative;
    display: block;
    will-change: translate;
    transition: translate var(--hover-timing) var(--hover-bezier);
    translate: 0 0;
}

.tag span::after {
    content: attr(data-text);
    position: absolute;
    top: 0;
    left: 0;
    transform: translateY(-136%);
    transition: transform var(--hover-bezier-2);
}

@media (prefers-reduced-motion: reduce) {
  .course-card {
    transition: none;
    transform: none;
  }
}

.underline-animate-heading {
    position: relative;
    display: inline;
    text-decoration: none;
}

#newsletter {
    padding-top: 14rem;
}

.newsletter-contain {
    background-color: var(--news);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 7.5rem 0 6rem 0;
    gap: 3rem;
    margin: 0 17.5rem;
}

.news-svg-wrap {
    margin-right: 6em;
    transform: scale(1.1);
}

.news-svg-wrap svg {
    height: 100%;
    width: auto;
    display: block;
}

.newsl path {
    fill: var(--black);
    vector-effect: non-scaling-stroke;
}

.newsletter-heading {
    font-family: 'iv', serif;
    font-weight: 400;
    font-size: 2.5rem;
    line-height: 1.1;
    text-align: center;
    color: var(--black);
}

.newsletter-form {
    display: flex;
    gap: 1.25rem;
}

#newsletter-email {
    width: 18em;
    font-family: 'nhg', sans-serif;
    height: 3.5rem;
    font-size: 20px;
    padding: 0 1rem;
    border: 1.5px solid var(--black);
    outline: none;
    background-color: var(--news);
    color: var(--black);
}

input::placeholder {
  color: var(--black); 
}

#newsletter-button {
    font-family: 'nhg', sans-serif;
    height: 3.5rem;
    font-size: 20px;
    padding: 0 1.5rem;
    border: 1.75px solid var(--black);
    outline: none;
    background-color: var(--black);
    color: var(--white);
    cursor: pointer;
    margin-left: -1.5px;
    transition: all 0.3s ease-in-out;
    border-radius: 3em;
    /* font-weight: 600; */
    letter-spacing: 0.01em;
}

#newsletter-button:hover {
    background-color: var(--news);
    color: var(--black);
    font-weight: 400;
}