*{box-sizing:border-box;margin:0;padding:0}:root{--purple: #7F77DD;--purple-light: #EEEDFE;--green: #1D9E75;--text: #1a1a1a;--text-muted: #666;--bg: #f4f4f6;--surface: #fff;--border: rgba(0,0,0,.1);--radius: 12px}body{font-family:system-ui,-apple-system,sans-serif;background:var(--bg);color:var(--text)}.layout{display:flex;flex-direction:column;min-height:100dvh;max-width:480px;margin:0 auto;background:var(--bg)}.topbar{background:var(--surface);border-bottom:.5px solid var(--border);padding:12px 16px;display:flex;align-items:center;gap:8px;position:sticky;top:0;z-index:10}.logo{font-size:18px;font-weight:600;flex:1}.logo-accent{color:var(--purple)}.topbar-user{font-size:13px;color:var(--text-muted)}.logout-btn{font-size:12px;padding:4px 10px;border:.5px solid var(--border);border-radius:8px;background:none;cursor:pointer;color:var(--text-muted)}.main-content{flex:1;padding:16px 16px 80px}.bottom-nav{position:fixed;bottom:0;left:50%;transform:translate(-50%);width:100%;max-width:480px;background:var(--surface);border-top:.5px solid var(--border);display:flex}.nav-item{flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;padding:10px 0 12px;font-size:11px;color:var(--text-muted);text-decoration:none}.nav-item.active{color:var(--purple)}.nav-icon{font-size:20px;line-height:1}.page-title{font-size:18px;font-weight:600;margin-bottom:14px}.card-surface{background:var(--surface);border:.5px solid var(--border);border-radius:var(--radius);padding:14px}.btn{padding:10px 18px;border-radius:10px;font-size:14px;cursor:pointer;font-family:inherit;font-weight:500;transition:opacity .15s}.btn:hover{opacity:.85}.btn-primary{background:var(--purple);color:#fff;border:none}.btn-secondary{background:none;color:var(--text);border:.5px solid var(--border)}.btn-block{display:block;width:100%}.form-group{margin-bottom:14px}.form-label{display:block;font-size:12px;color:var(--text-muted);margin-bottom:4px}.form-input,.form-select{width:100%;padding:9px 12px;border:.5px solid var(--border);border-radius:10px;font-size:14px;background:var(--surface);color:var(--text);font-family:inherit}.form-input:focus,.form-select:focus{outline:none;border-color:var(--purple)}.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:10px}.error-msg{color:#e24b4a;font-size:13px;margin-top:6px}.success-msg{color:var(--green);font-size:13px;margin-top:6px}.stats-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:16px}.stat-box{background:var(--surface);border-radius:10px;padding:12px;text-align:center}.stat-val{font-size:20px;font-weight:600}.stat-lbl{font-size:11px;color:var(--text-muted);margin-top:2px}