body {
    font-family: Open Sans;
}
#header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 5px 0;
    border-bottom: 1px solid #D9D9D9;
    max-width: 1200px;
    margin: 0 auto;
}
#nav {
    font-size: 17px;
    font-weight: 370;
    display: flex;
    gap: 35px;
}
#shop {
    text-decoration: underline;
    text-underline-offset: 5px;
}
.nav-item {
    transition: color 0.1s ease;
}
.nav-item:hover {
    color: #888;
}
#logo-img {
    width: 150px;
    height: 150px;
    padding-left: 120px;
}
#search {
    display: flex;
    align-items: center;
    gap: 8px;
}
#search-img {
    width: 25px;
    height: 25px;
    opacity: 0.8;
}
#search-input {
    visibility: hidden;
    width: 220px;
    height: 36px;
    padding: 0 12px;
    font-family: Open Sans;
    font-size: 14px;
    color: #333333;
    background-color: #FAFAFA;
    border: 1px solid #D9D9D9;
    border-radius: 999px;
    outline: none;
    box-sizing: border-box;
    transition: border-color 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
}
#search:hover #search-input {
    visibility: visible;
}
#search-input::placeholder {
    color: #9A9A9A;
}
#search-input:focus {
    visibility: visible;
    background-color: #FFFFFF;
    border-color: #B8B8B8;
    box-shadow: 0 0 0 3px rgba(0, 0, 0, 0.05);
}
#sheet-listings {
    display: grid;
    grid-template-columns: repeat(4, 250px);
    justify-content: space-between;
    row-gap: 35px;
    padding-top: 75px;
    max-width: 1200px;
    margin: 0 auto;
}
#no-results {
    display: none;
    text-align: center;
    font-size: 18px;
    color: #777;
    grid-column: 1 / -1; /* spans full grid width */
}
#sheet-overlay {
    position: fixed;
    inset: 0;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}
#sheet-overlay.active {
    display: flex;
}
#info-overlay {
    position: fixed;
    inset: 0;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}
#info-overlay.active {
    display: flex;
}
#info-popup {
    width: 80vw;
    height: 80vh;
    background: white;
    border: 1px solid #D9D9D9;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    padding: 35px 45px;
    box-sizing: border-box;
    position: relative;
    overflow-y: auto;
}
#info-close {
    position: absolute;
    top: 18px;
    right: 22px;
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
    color: #666;
}
#info-close:hover {
    color: #000;
}
#info-logo {
    display: block;
    width: 90px;
    height: 90px;
    margin: 0 auto 18px auto;
}
#info-title {
    font-size: 34px;
    font-weight: 500;
    text-align: center;
    margin-bottom: 28px;
}
.info-section {
    max-width: 900px;
    margin: 0 auto 26px auto;
}
.info-heading {
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 10px;
}
.info-text {
    font-size: 16px;
    line-height: 1.7;
}
#sheet-popup {
    width: 80vw;
    height: 80vh;
    background: white;
    border: 1px solid #D9D9D9;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    display: flex;
    gap: 40px;
    padding: 35px;
    box-sizing: border-box;
    position: relative;
}
#popup-logo {
    height: 70px;
    width: 70px;
}
#popup-close {
    position: absolute;
    top: 18px;
    right: 22px;
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
    color: #666;
}
#popup-close:hover {
    color: #000;
}
#popup-image {
    height: 100%;
    max-height: 100%;
    aspect-ratio: 8.5 / 11;
    object-fit: contain;
    border: 1px solid #D9D9D9;
}
#popup-details {
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    max-width: 420px;
    flex: 1;
    padding-top: 50px;
}
#popup-title {
    font-size: 28px;
    font-weight: 500;
    margin-bottom: 18px;
}
#popup-description {
    font-size: 16px;
    line-height: 1.6;
    margin-bottom: 22px;
}
#popup-price {
    font-size: 26px;
    margin-bottom: 24px;
}
#popup-buy {
    width: 220px;
    height: 48px;
    border: none;
    border-radius: 8px;
    font-family: Open Sans;
    font-size: 16px;
    cursor: pointer;
}
#popup-buy:hover {
    background-color: #0060B2;
    color: #FFFFFF;
}
#popup-video {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}
#popup-video iframe {
    width: 100%;
    height: 90%;
    border: none;
    border-radius: 8px;
    margin-right: 30px;
}
#footer {
    margin: 80px auto 0 auto;
    padding: 30px 0;
    border-top: 1px solid #D9D9D9;
    display: flex;
    justify-content: center;
    gap: 40px;
    max-width: 1200px;
}
.footer-icon {
    width: 23px;
    height: 23px;
    transition: opacity 0.15s ease;
    cursor: pointer;
}
.footer-icon:hover {
    opacity: 0.6;
}
.sheet {
    display: flex;
    flex-direction: column;
    width: 250px;
    transition: transform 0.2s ease;
    cursor: pointer;
}
.sheet-image {
    width: 250px;
    aspect-ratio: 8.5 / 11;
    border: 1px solid #D9D9D9;
}
.sheet-title {
    margin-top: 8px;
    font-size: 14px;
    text-align: center;
}
.sheet:hover {
    transform: scale(1.04);
}
.sheet:hover .sheet-title {
    text-decoration: underline;
    text-underline-offset: 5px;
    text-decoration-thickness: 0.2px;
}