:root {
    --admin-sidebar: #17201d;
    --admin-accent: #326b58;
    --admin-surface: #f3f5f4;
}

.admin-body {
    background: var(--admin-surface);
    color: #17201d;
}

.admin-shell {
    display: grid;
    grid-template-columns: 250px minmax(0, 1fr);
    min-height: 100vh;
}

.admin-sidebar {
    background: var(--admin-sidebar);
    color: #fff;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    padding: 24px 18px;
    position: sticky;
    top: 0;
}

.admin-brand {
    align-items: center;
    color: #fff;
    display: flex;
    font-size: 1.1rem;
    font-weight: 700;
    gap: 10px;
    margin: 0 8px 30px;
    text-decoration: none;
}

.admin-brand-mark,
.admin-login-logo {
    align-items: center;
    background: #d9e8df;
    border-radius: 10px;
    color: var(--admin-accent);
    display: inline-flex;
    font-size: .8rem;
    font-weight: 800;
    height: 34px;
    justify-content: center;
    letter-spacing: .04em;
    width: 34px;
}

.admin-nav {
    display: grid;
    gap: 5px;
}

.admin-nav-link {
    border-radius: 9px;
    color: rgba(255, 255, 255, .78);
    display: flex;
    justify-content: space-between;
    padding: 10px 12px;
    text-decoration: none;
}

.admin-nav-link:hover {
    background: rgba(255, 255, 255, .09);
    color: #fff;
}

.admin-nav-link.disabled {
    cursor: default;
    opacity: .55;
}

.admin-nav-link small {
    font-size: .65rem;
    text-transform: uppercase;
}

.admin-sidebar-footer {
    margin-top: auto;
    padding: 24px 8px 0;
}

.admin-main {
    min-width: 0;
}

.admin-topbar {
    align-items: center;
    background: rgba(255, 255, 255, .95);
    border-bottom: 1px solid #e3e7e5;
    display: flex;
    justify-content: space-between;
    min-height: 72px;
    padding: 12px 30px;
    position: sticky;
    top: 0;
    z-index: 10;
}

.admin-content {
    margin: 0 auto;
    max-width: 1500px;
    padding: 30px;
}

.admin-content .btn-primary,
.admin-login-card .btn-primary {
    background: var(--admin-accent);
    border-color: var(--admin-accent);
}

.admin-login-body {
    background: radial-gradient(circle at top, #e7eee9 0, #f6f7f6 52%, #edf0ee 100%);
}

.admin-login-wrap {
    align-items: center;
    display: flex;
    justify-content: center;
    min-height: 100%;
    padding: 24px;
}

.admin-login-card {
    background: #fff;
    border: 1px solid #e3e7e5;
    border-radius: 18px;
    box-shadow: 0 24px 70px rgba(28, 45, 38, .12);
    max-width: 430px;
    padding: 38px;
    width: 100%;
}

.admin-portrait-preview {
    aspect-ratio: 1;
    border-radius: 50%;
    display: block;
    object-fit: cover;
    width: 180px;
}

.admin-qr-preview {
    background: #fff;
    border: 1px solid #e3e7e5;
    height: 190px;
    object-fit: contain;
    padding: 8px;
    width: 190px;
}

.admin-gallery-grid {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
}

.admin-gallery-item {
    border: 1px solid #e3e7e5;
    border-radius: 12px;
    overflow: hidden;
}

.admin-gallery-item > img {
    aspect-ratio: 4 / 3;
    display: block;
    object-fit: cover;
    width: 100%;
}

.admin-timeline-thumb {
    border-radius: 8px;
    flex: 0 0 90px;
    height: 90px;
    object-fit: cover;
    width: 90px;
}

.admin-login-logo {
    height: 48px;
    margin-bottom: 22px;
    width: 48px;
}

@media (max-width: 900px) {
    .admin-shell {
        display: block;
    }

    .admin-sidebar {
        min-height: auto;
        padding: 14px 16px;
        position: static;
    }

    .admin-brand {
        margin: 0 0 14px;
    }

    .admin-nav {
        display: flex;
        overflow-x: auto;
    }

    .admin-nav-link {
        flex: 0 0 auto;
        white-space: nowrap;
    }

    .admin-nav-link.disabled,
    .admin-sidebar-footer {
        display: none;
    }

    .admin-topbar,
    .admin-content {
        padding-left: 16px;
        padding-right: 16px;
    }
}