:root {
    color-scheme: light dark;
    --bg: radial-gradient(circle at top, #f9f9ff, #eef2ff 45%, #e3f2ff);
    --card-bg: rgba(255, 255, 255, 0.9);
    --border: rgba(15, 23, 42, 0.08);
    --text: #0f172a;
    --muted: #4b5563;
    --accent: #1f2937;
    --dev: #2563eb;
    --prd: #db2777;
    font-family: "Inter", "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    background: var(--bg);
    color: var(--text);
}

main.page {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 32px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.helpful {
    background: var(--card-bg);
    border-radius: 20px;
    border: 1px solid var(--border);
    padding: 22px 26px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    box-shadow: 0 25px 60px -45px rgba(15, 23, 42, 0.6);
}

.helpful__header h2 {
    margin: 0 0 6px;
    font-size: 24px;
}

.helpful__header p {
    margin: 0;
    color: var(--muted);
    line-height: 1.4;
}

.helpful__list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.helpful__list a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-decoration: none;
    padding: 10px 14px;
    border-radius: 12px;
    border: 1px solid transparent;
    background: rgba(15, 23, 42, 0.02);
    color: var(--text);
    font-weight: 500;
    transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease;
}

.helpful__list a:hover {
    border-color: rgba(15, 23, 42, 0.12);
    background: white;
    transform: translateY(-1px);
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
}

.service-card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 20px;
    border: 1px solid var(--border);
    backdrop-filter: blur(16px);
    box-shadow: 0 20px 60px -40px rgba(15, 23, 42, 0.8);
}

.service-card__title {
    margin: 0 0 12px;
    font-size: 22px;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.env-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.env {
    background: rgba(255, 255, 255, 0.8);
    border-radius: 16px;
    padding: 14px 16px;
    border: 1px solid rgba(15, 23, 42, 0.05);
}

.env__label {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--muted);
    margin-bottom: 12px;
    font-size: 13px;
}

.env__slug {
    font-weight: 600;
    text-transform: lowercase;
}

.pill {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.1em;
    padding: 3px 9px;
    border-radius: 999px;
    background: rgba(37, 99, 235, 0.1);
    color: var(--dev);
}

.env:nth-child(2) .pill {
    background: rgba(219, 39, 119, 0.1);
    color: var(--prd);
}

.clusters {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.cluster {
    border: 1px solid rgba(15, 23, 42, 0.08);
    border-radius: 12px;
    padding: 10px 12px;
    background: rgba(15, 23, 42, 0.01);
}

.cluster__header {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.cluster__name {
    font-weight: 600;
    color: var(--accent);
}

.cluster__domain {
    font-family: "JetBrains Mono", "Fira Code", "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", monospace;
    color: var(--text);
    font-size: 12px;
}

.cluster__links {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.argocd-link {
    border: 1px solid rgba(37, 99, 235, 0.3) !important;
    background: rgba(37, 99, 235, 0.08) !important;
    color: var(--dev);
}

.env ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.env a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-decoration: none;
    padding: 8px 10px;
    border-radius: 10px;
    border: 1px solid transparent;
    color: var(--text);
    font-weight: 500;
    background: rgba(15, 23, 42, 0.02);
    transition: border-color 0.2s ease, transform 0.2s ease, background 0.2s ease;
}

.env a:hover {
    border-color: rgba(15, 23, 42, 0.1);
    transform: translateY(-1px);
    background: white;
}

.arrow {
    font-size: 16px;
    color: var(--muted);
}

@media (max-width: 900px) {
    main.page {
        padding: 20px;
    }

    .helpful {
        grid-template-columns: 1fr;
        padding: 20px;
    }
}