* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body.appnotes-page {
    background: linear-gradient(135deg, #e3f0ff 0%, #b3d1f7 50%, #1976d2 100%);
    min-height: 100vh;
    padding: 20px;
}
.container {
    max-width: 1600px;
    margin: 0 auto;
}
.header {
    text-align: center;
    margin-bottom: 40px;
    color: #1976d2;
}
.header h1 {
    font-size: 3rem;
    margin-bottom: 15px;
    font-weight: 800;
    color: #1976d2;
    text-shadow: 2px 2px 8px rgba(25, 118, 210, 0.08);
}
.search-container {
    display: flex;
    justify-content: center;
    margin-bottom: 30px;
}
.search-bar {
    width: 100%;
    max-width: 500px;
    padding: 18px 24px;
    border: none;
    border-radius: 30px;
    font-size: 1.15rem;
    background: #fff;
    box-shadow: 0 4px 20px rgba(25, 118, 210, 0.10);
    transition: all 0.3s ease;
}
.search-bar:focus {
    outline: none;
    box-shadow: 0 6px 28px rgba(25, 118, 210, 0.18);
    transform: translateY(-2px);
}
.search-bar::placeholder {
    color: #90a4ae;
}
.masonry {
    column-count: 4;
    column-gap: 24px;
    padding: 20px 0;
}
.item {
    break-inside: avoid;
    margin-bottom: 24px;
    background: #fff;
    border-radius: 18px;
    overflow: hidden;
    box-shadow: 0 8px 32px rgba(25, 118, 210, 0.10), 0 1.5px 4px rgba(25, 118, 210, 0.08);
    transition: all 0.3s cubic-bezier(.4,2,.3,1);
    border: 1.5px solid #e3f0ff;
}
.item:hover {
    transform: translateY(-7px) scale(1.01);
    box-shadow: 0 18px 40px rgba(25, 118, 210, 0.16), 0 2px 8px rgba(25, 118, 210, 0.10);
}
.item.hidden {
    display: none;
}
.item-image {
    width: 100%;
    height: 220px;
    object-fit: contain;
    display: block;
    background: linear-gradient(180deg, #e3f0ff 0%, #f8fbff 60%, #ffffff 100%);
    border-bottom: 1.5px solid #e3f0ff;
    padding: 18px 0;
    box-sizing: border-box;
    transition: transform 0.3s ease;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(25, 118, 210, 0.10);
}
.item:hover .item-image {
    transform: scale(1.03);
}
.item-content {
    padding: 22px 18px 18px 18px;
    text-align: center;
}
.item-title {
    font-size: 1.08rem;
    font-weight: 700;
    color: #1976d2;
    margin-bottom: 10px;
    line-height: 1.3;
    letter-spacing: 0.01em;
}
.z2m-part-numbers a {
    display: inline-block;
    background: linear-gradient(90deg, #1976d2 0%, #42a5f5 100%);
    color: #fff !important;
    font-weight: 600;
    font-size: 0.98em;
    border-radius: 16px;
    padding: 7px 18px;
    margin: 0 auto 10px auto;
    text-decoration: none;
    box-shadow: 0 2px 8px rgba(25, 118, 210, 0.10);
    transition: background 0.2s, box-shadow 0.2s, transform 0.2s;
}
.z2m-part-numbers a:hover {
    background: linear-gradient(90deg, #1565c0 0%, #1976d2 100%);
    box-shadow: 0 4px 16px rgba(25, 118, 210, 0.18);
    transform: translateY(-2px) scale(1.04);
}
.no-results {
    text-align: center;
    color: #7f8c8d;
    font-size: 1.2rem;
    padding: 40px;
    background: white;
    border-radius: 12px;
    margin: 20px 0;
}
@media (max-width: 1200px) {
    .masonry {
        column-count: 3;
    }
}
@media (max-width: 900px) {
    .masonry {
        column-count: 2;
    }
}
@media (max-width: 600px) {
    .masonry {
        column-count: 1;
    }
    .header h1 {
        font-size: 2.2rem;
    }
    .search-bar {
        padding: 12px 18px;
        font-size: 1rem;
    }
}