:root{--bg:#f5f5f5;--surface:#fff;--text:#202124;--text-muted:#5f6368;--accent:#b32424;--border:#dadce0}*,:before,:after{box-sizing:border-box}*{margin:0}body{background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}.invite-page{justify-content:center;align-items:center;min-height:100vh;display:flex}.invite-box{background:var(--surface);border:1px solid var(--border);border-radius:8px;max-width:420px;padding:2rem}.invite-box h1{margin-bottom:.5rem;font-size:1.8rem}.subtitle{color:var(--text-muted);margin-bottom:1.5rem}.invite-box form{flex-direction:column;gap:.8rem;display:flex}.invite-box input{border:1px solid var(--border);background:var(--bg);border-radius:4px;padding:.7rem}.invite-box button{background:var(--accent);color:#fff;cursor:pointer;border:0;border-radius:4px;padding:.7rem;font-weight:700}.msg{white-space:pre-wrap;border-radius:4px;margin-top:1rem;padding:.8rem;font-size:.9rem}.msg.sent{color:#2e7d32;background:#e8f5e9}.msg.error{color:#c62828;background:#ffebee}.admin-dashboard{flex-direction:column;max-width:1200px;min-height:100vh;margin:0 auto;display:flex}.admin-header{border-bottom:1px solid var(--border);background:var(--surface);justify-content:space-between;padding:1.5rem;display:flex}.admin-header h1{font-size:1.5rem}.admin-main{flex:1;grid-template-columns:1fr 1fr;gap:2rem;padding:2rem;display:grid}.admin-form{background:var(--surface);border:1px solid var(--border);border-radius:8px;padding:1.5rem}.admin-form h2{margin-bottom:1rem}.admin-form form{flex-direction:column;gap:.8rem;display:flex}.admin-form input,.admin-form select,.admin-form textarea{border:1px solid var(--border);background:var(--bg);border-radius:4px;padding:.7rem}.admin-form button{background:var(--accent);color:#fff;cursor:pointer;border:0;border-radius:4px;padding:.7rem;font-weight:700}.admin-form button:disabled{opacity:.5}.admin-list{background:var(--surface);border:1px solid var(--border);border-radius:8px;grid-column:1/-1;padding:1.5rem}.admin-list h2{margin-bottom:1rem}.admin-list ul{flex-direction:column;gap:.6rem;list-style:none;display:flex}.article-row{background:var(--bg);border:1px solid var(--border);border-radius:4px;align-items:center;gap:.5rem;padding:.8rem;display:flex}.article-row strong{flex:1}.badge{background:var(--accent);color:#fff;border-radius:3px;padding:2px 6px;font-size:.75rem}.mono{color:var(--text-muted);font-family:monospace}.btn-ghost{border:1px solid var(--border);cursor:pointer;background:0 0;border-radius:4px;padding:.5rem .8rem}.btn-ghost:hover{background:var(--bg)}.loading{text-align:center;color:var(--text-muted);padding:3rem}@media (width<=800px){.admin-main{grid-template-columns:1fr}}