.help-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000d1;display:flex;align-items:center;justify-content:center;z-index:2000}.help-content{position:relative;background-color:#1e1e1e;border:1px solid rgba(255,255,255,.1);border-radius:16px;box-shadow:0 8px 32px #0006;color:var(--text-secondary);padding:40px;max-width:560px;max-height:80vh;overflow-y:auto;width:90%}.help-content h2{color:var(--text-primary);font-size:1.5rem;font-weight:400;font-family:Open Sans,sans-serif;border-bottom:1px solid rgba(255,255,255,.1);padding-bottom:14px;margin-top:0;margin-bottom:24px}.help-content h3{color:var(--text-primary);font-size:1rem;font-weight:400;font-family:Open Sans,sans-serif;margin-bottom:8px}.help-content p,.help-content li{font-size:.9rem;font-weight:300;font-family:Open Sans,sans-serif;line-height:1.6;color:var(--text-secondary)}.help-content section{margin-bottom:20px}.help-button{background-color:var(--bg-surface);border:1px solid rgba(255,255,255,.1);color:var(--text-secondary);box-shadow:0 2px 8px #0003}.help-button:hover{background-color:var(--text-primary);color:var(--bg-deep)}.close-button{position:absolute;top:16px;right:16px;background:none;border:none;color:var(--text-secondary);font-size:1.6rem;cursor:pointer;padding:0;width:28px;height:28px;display:flex;align-items:center;justify-content:center;transition:color .2s;line-height:1}.close-button:hover{color:var(--text-primary)}.legal-content{max-width:900px;background-color:#1e1e1e!important;background:#1e1e1e!important}.help-content h4{color:var(--text-secondary);font-size:.78rem;font-weight:400;font-family:Open Sans,sans-serif;margin:16px 0 6px;text-transform:uppercase;letter-spacing:.6px;color:var(--text-muted, #aaa)}.legal-table{width:100%;border-collapse:collapse;margin-bottom:4px;font-size:.82rem;table-layout:fixed}.legal-table col.col-atlas{width:25%}.legal-table col.col-doi{width:40%}.legal-table col.col-lic{width:35%}.legal-table th{text-align:left;padding:6px 10px;color:var(--text-muted, #aaa);border-bottom:1px solid rgba(255,255,255,.1);font-weight:400;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.legal-table td{padding:7px 10px;color:var(--text-secondary);border-bottom:1px solid rgba(255,255,255,.05);vertical-align:top;line-height:1.4;overflow:hidden;text-overflow:ellipsis}.legal-table tr:last-child td{border-bottom:none}.legal-table a{color:var(--accent, #4a90e2);text-decoration:none;font-size:.78rem;word-break:break-all}.legal-table a:hover{text-decoration:underline}.contributors-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}.contributors-list li{font-size:.92rem;font-weight:300;font-family:Open Sans,sans-serif;color:var(--text-primary)}