.workspace {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    font-size: 0.9375rem;
}

.workspace > header {
    position: fixed;
    inset: 0 auto 0 0;
    width: 236px;
    padding: 24px 16px 20px;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 16px;
    background-color: var(--bg-rail);
    color: var(--text-on-rail);
    border-right: 1px solid var(--border-rail);
    z-index: 20;
}

.brand-block {
    padding: 0 10px 16px;
    border-bottom: 1px solid var(--border-rail);
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.workspace > header strong {
    color: #ffffff;
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    display: flex;
    align-items: center;
    gap: 8px;
}

.brand-subtitle {
    font-size: 0.75rem;
    color: var(--text-on-rail-muted);
    line-height: 1.35;
}

.workspace nav {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.workspace nav a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: var(--radius-md);
    color: var(--text-on-rail);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: background-color 150ms cubic-bezier(0.22, 1, 0.36, 1), color 150ms cubic-bezier(0.22, 1, 0.36, 1);
}

.workspace nav a:hover {
    background-color: var(--bg-rail-hover);
    color: #ffffff;
}

.workspace nav a[aria-current="page"] {
    background-color: var(--bg-rail-active);
    color: #ffffff;
    font-weight: 600;
}

.rail-footer {
    margin-top: auto;
    padding-top: 16px;
    border-top: 1px solid var(--border-rail);
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.rail-user {
    padding: 0 8px;
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.rail-user-name {
    color: #ffffff;
    font-weight: 600;
    font-size: 0.875rem;
    overflow-wrap: anywhere;
}

.rail-user-role {
    color: var(--text-on-rail-muted);
    font-size: 0.75rem;
}

.rail-link {
    display: flex;
    align-items: center;
    padding: 8px 10px;
    border-radius: var(--radius-md);
    color: var(--text-on-rail);
    text-decoration: none;
    font-size: 0.8125rem;
    font-weight: 500;
}

.rail-link:hover,
.rail-link[aria-current="page"] {
    background-color: var(--bg-rail-hover);
    color: #ffffff;
}

.workspace > header button {
    width: 100%;
    justify-content: center;
    background-color: var(--bg-rail-hover);
    border-color: #35587a;
    color: #ffffff;
    font-size: 0.8125rem;
    min-height: 38px;
}

.workspace > header button:hover {
    background-color: var(--bg-rail-active);
    border-color: #466f96;
}

.workspace > main {
    flex: 1;
    width: calc(100% - 236px);
    max-width: 1560px;
    margin-left: 236px;
    padding: 32px 36px 24px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.workspace > footer {
    margin-left: 236px;
    padding: 16px 36px 24px;
    font-size: 0.75rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border-subtle);
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

.page-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-subtle);
}

.page-header-copy {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.split-workspace {
    display: grid;
    grid-template-columns: minmax(300px, 380px) minmax(0, 1fr);
    gap: 24px;
    align-items: start;
}

.grid-2 {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 24px;
    align-items: start;
}

.form-grid-2 {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 14px 18px;
}

@media (max-width: 1120px) {
    .workspace > header {
        width: 204px;
        padding: 20px 12px;
    }

    .workspace > main {
        width: calc(100% - 204px);
        margin-left: 204px;
        padding: 24px;
    }

    .workspace > footer {
        margin-left: 204px;
        padding: 16px 24px;
    }

    .split-workspace,
    .grid-2 {
        grid-template-columns: minmax(0, 1fr);
    }
}

@media (max-width: 780px) {
    .workspace > header {
        position: static;
        width: 100%;
        padding: 16px;
        gap: 12px;
        border-right: 0;
        border-bottom: 1px solid var(--border-rail);
    }

    .brand-block {
        padding: 0 0 10px;
    }

    .workspace nav {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .rail-footer {
        margin-top: 4px;
        padding-top: 12px;
        flex-direction: row;
        flex-wrap: wrap;
        align-items: center;
        justify-content: space-between;
    }

    .workspace > header button {
        width: auto;
    }

    .workspace > main,
    .workspace > footer {
        width: 100%;
        margin-left: 0;
        padding: 20px 16px;
    }

    .form-grid-2 {
        grid-template-columns: minmax(0, 1fr);
    }
}