:root{--bg: #f5f7f9;--surface: #ffffff;--border: #e2e8f0;--text: #1f2937;--text-muted: #6b7280;--primary: #2563eb;--danger: #d64545;--ok: #16a34a;--warn: #d97706;font-family:system-ui,-apple-system,Segoe UI,sans-serif}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text)}.page{max-width:1080px;margin:0 auto;padding:24px 16px 64px}.page-loading{padding:48px;text-align:center;color:var(--text-muted)}h1{margin:0 0 4px}.navbar{display:flex;align-items:center;flex-wrap:wrap;gap:12px 16px;padding:12px 24px;background:var(--surface);border-bottom:1px solid var(--border)}.navbar a{color:var(--text-muted);text-decoration:none;font-weight:500}.navbar a.active{color:var(--primary)}.navbar-brand{font-weight:700;margin-right:8px}.navbar-spacer{flex:1}.navbar-user{color:var(--text-muted);font-size:.9em}.centered-page{display:flex;justify-content:center;padding-top:15vh}.card{background:var(--surface);border:1px solid 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