.systems-shell { min-height: 100vh; display: grid; place-items: center; padding: 32px 20px; }
.systems-panel { width: min(920px, 100%); background: var(--white); border-radius: 18px; padding: clamp(24px, 5vw, 48px); box-shadow: var(--shadow); }
.systems-panel--login { max-width: 480px; }
.systems-panel h1 { margin: 12px 0; font-size: clamp(1.8rem, 4vw, 2.5rem); }
.systems-panel p { line-height: 1.6; }
.systems-panel .section-label { margin-top: 28px; }
.systems-back { color: var(--muted); }
.systems-actions { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.systems-login { display: grid; gap: 12px; margin-top: 24px; }
.systems-login label { font-weight: bold; }
.systems-login input { min-width: 0; width: 100%; padding: 12px; border: 1px solid var(--line); border-radius: 6px; }
.systems-panel button { background: var(--bg-blue); color: white; border: 0; border-radius: 6px; padding: 12px 20px; cursor: pointer; }
.systems-login button { margin-top: 8px; }
.systems-panel button:disabled { opacity: .5; cursor: not-allowed; }
.systems-message { background: #fff1e5; padding: 12px 16px; border-left: 4px solid var(--accent); }
.systems-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(min(260px, 100%), 1fr)); gap: 20px; margin-top: 28px; }
.system-card { border: 1px solid var(--line); border-radius: 12px; padding: 24px; background: var(--surface); }
a.system-card:hover { border-color: var(--bg-blue); background: #eaf0f9; }
.system-card h2 { margin: 20px 0 10px; }
.system-card strong { color: var(--bg-blue); }
.system-card__badge { display: inline-block; background: #dff2e7; color: #225b37; padding: 5px 10px; border-radius: 20px; font-size: .85rem; }
.system-card--future .system-card__badge { background: #e4e8ef; color: var(--muted); }
.systems-panel :focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }