.main-header {
    background-color: var(--bg-card);
    border-bottom: 1px solid var(--border-color);
    padding: 18px 0;
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-zone { display: flex; align-items: center; gap: 8px; }
.logo-zone h1 { font-size: 18px; font-weight: 800; }
.explorer-icon { width: 8px; height: 18px; background-color: var(--primary); border-radius: 4px; }

.explorer-container { max-width: 1200px; margin: 0 auto; padding: 35px 20px; }

.tabs-container {
    display: flex;
    gap: 8px;
    margin-bottom: 25px;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 8px;
}

.split-layout {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 20px;
    height: calc(100vh - 230px);
    min-height: 550px;
}

.split-sidebar {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.03);
}

.split-content {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    height: 100%;
}