:root{--bg: #f4f5f7;--card: #ffffff;--border: #dcdfe4;--text: #1f2430;--muted: #6b7280;--primary: #405189;--primary-dark: #33426d;--danger: #b3261e;--danger-bg: #fdecea;--ok-bg: #e8f5e9;--ok-text: #1b5e20}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:var(--bg);color:var(--text)}.center{display:flex;align-items:center;justify-content:center;height:100vh}.muted{color:var(--muted)}.login-page{display:flex;align-items:center;justify-content:center;min-height:100vh}.login-card{background:var(--card);border:1px solid var(--border);border-radius:10px;padding:32px;width:340px;display:flex;flex-direction:column;gap:14px}.login-card h1{font-size:1.2rem;margin:0}.shell{min-height:100vh}.topbar{display:flex;align-items:center;gap:24px;padding:14px 24px;background:var(--primary);color:#fff}.topbar .brand{font-weight:600}.topbar nav{display:flex;gap:16px;flex:1}.topbar nav a{color:#ffffffd9;text-decoration:none;font-size:.92rem}.topbar nav a.active{color:#fff;font-weight:600}.topbar-right{display:flex;align-items:center;gap:12px}.topbar-right .muted{color:#ffffffbf}main{padding:24px;max-width:960px;margin:0 auto}label{display:flex;flex-direction:column;gap:4px;font-size:.85rem;color:var(--muted)}input,select{padding:8px 10px;border:1px solid var(--border);border-radius:6px;font-size:.95rem;color:var(--text)}.form-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;margin-bottom:18px}button{background:var(--primary);color:#fff;border:none;border-radius:6px;padding:9px 16px;font-size:.9rem;cursor:pointer}button:hover{background:var(--primary-dark)}button:disabled{opacity:.6;cursor:not-allowed}.link-btn{background:none;color:var(--primary);padding:0;text-decoration:underline}.link-btn:hover{background:none;color:var(--primary-dark)}.page-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.card{background:var(--card);border:1px solid var(--border);border-radius:8px;padding:20px;margin-bottom:20px}.card h3{font-size:.95rem;margin:0 0 12px}table{width:100%;border-collapse:collapse;background:var(--card);border:1px solid var(--border);border-radius:8px;overflow:hidden}th,td{text-align:left;padding:10px 14px;border-bottom:1px solid var(--border);font-size:.9rem}th{background:#eef0f4;font-weight:600}.alert-error{background:var(--danger-bg);color:var(--danger);padding:10px 14px;border-radius:6px;margin-bottom:14px;font-size:.9rem}.alert-ok{background:var(--ok-bg);color:var(--ok-text);padding:10px 14px;border-radius:6px;margin-bottom:14px;font-size:.9rem}