:root{--bg:#f6f7f9;--panel:#ffffff;--text:#17202a;--muted:#657282;--line:#dce2ea;--accent:#0f766e;--accent-dark:#115e59;--danger:#b42318;--success:#12715b;--focus:#2563eb}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:Arial,Helvetica,sans-serif}a{color:inherit}button,input,select,textarea{font:inherit}.app-shell{display:grid;grid-template-columns:248px 1fr;min-height:100vh}.sidebar{display:flex;flex-direction:column;gap:20px;padding:24px 16px;background:#20272f;color:#f8fafc}.brand{display:flex;align-items:baseline;justify-content:space-between;padding:0 8px 12px;border-bottom:1px solid rgba(255,255,255,.14);font-weight:700}.brand small{color:#b8c4d3}.sidebar nav{display:grid;grid-gap:6px;gap:6px}.app-nav-item{display:grid;grid-gap:4px;gap:4px}.app-nav-toggle{width:100%;border:0;background:transparent;color:#eef2f6;text-align:left;cursor:pointer}.app-nav-toggle:hover{background:rgba(255,255,255,.1)}.app-nav-chevron{margin-left:auto}.app-subnav{display:grid;grid-gap:2px;gap:2px;padding-left:20px}.app-subnav .nav-link{min-height:36px;color:#d5dee9;font-size:14px}.sidebar-footer{display:grid;grid-gap:6px;gap:6px;margin-top:auto}.sidebar-footer .icon-text-button.ghost{margin-top:0}.icon-text-button,.nav-link{display:inline-flex;align-items:center;gap:10px;min-height:40px;border:0;border-radius:6px;padding:10px 12px;text-decoration:none;cursor:pointer}.nav-link{color:#eef2f6}.icon-text-button.ghost:hover,.nav-link:hover{background:rgba(255,255,255,.1)}.icon-text-button{background:var(--accent);color:#ffffff}.icon-text-button:hover{background:var(--accent-dark)}.icon-text-button.secondary{border:1px solid var(--line);background:#ffffff;color:var(--text)}.icon-text-button.secondary:hover{background:#eef2f6}.icon-text-button.ghost{margin-top:auto;background:transparent;color:#eef2f6}.main-content{width:min(1180px,100%);padding:32px}.page-header{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:24px}.page-header h1{margin:0 0 6px;font-size:28px}.muted,.page-header p{margin:0;color:var(--muted)}.grid{display:grid;grid-gap:16px;gap:16px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.card,.panel{border:1px solid var(--line);border-radius:8px;background:var(--panel)}.card{padding:18px}.card h2,.panel h2{margin:0 0 10px;font-size:18px}.panel{overflow:hidden}.panel-header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:16px 18px;border-bottom:1px solid var(--line)}.panel-body{padding:18px}.table{width:100%;border-collapse:collapse;background:#fff}.table td,.table th{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}.table th{color:var(--muted);font-size:13px;font-weight:700}.badge-row{display:flex;flex-wrap:wrap;gap:8px}.badge{display:inline-flex;align-items:center;min-height:26px;border-radius:999px;padding:4px 10px;background:#e7f5f1;color:#0f5f51;font-size:13px}.form{display:grid;grid-gap:14px;gap:14px;max-width:520px}.form.wide{max-width:760px}.field{display:grid;grid-gap:6px;gap:6px}.field label{color:var(--muted);font-size:13px;font-weight:700}.field input,.field select,.field textarea{width:100%;min-height:42px;border:1px solid var(--line);border-radius:6px;padding:10px 12px;background:#fff;color:var(--text)}.field textarea{min-height:120px}.status-message{border-radius:6px;padding:12px 14px;background:#eaf0f8;color:#23364f}.status-message.error{background:#fdeceb;color:var(--danger)}.status-message.success{background:#e9f7f2;color:var(--success)}.login-page{display:grid;place-items:center;min-height:100vh;padding:24px}.login-card{width:min(440px,100%);border:1px solid var(--line);border-radius:8px;background:#ffffff;padding:28px}.login-card h1{margin:0 0 8px}.action-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center}@media (max-width:760px){.app-shell{grid-template-columns:1fr}.sidebar{position:static;padding:16px}.sidebar nav{grid-template-columns:repeat(3,minmax(0,1fr))}.sidebar-footer{grid-template-columns:repeat(2,minmax(0,1fr))}.icon-text-button,.nav-link{justify-content:center}.main-content{padding:20px}.grid.two{grid-template-columns:1fr}.page-header{display:grid}}