*,:before,:after{box-sizing:border-box;margin:0;padding:0}:root{--brand-dark:#003145;--brand:#1b6a82;--brand-light:#d9dee1;--gray-50:#f7f8f8;--gray-100:#eef1f2;--gray-200:#d9dee1;--gray-500:#62767c;--gray-700:#37474d;--gray-900:#0f2027;--radius:12px;--header-h:56px;--footer-h:40px;--sidebar-w:268px}html,body,#root{height:100%}body{background:var(--gray-50);color:var(--gray-900);font-family:DM Sans,sans-serif}h1,h2,h3{font-family:Space Grotesk,sans-serif}a{color:inherit;text-decoration:none}button{font-family:inherit}.app-shell{grid-template-columns:var(--sidebar-w) 1fr;grid-template-rows:var(--header-h) 1fr var(--footer-h);grid-template-areas:"header header""sidebar main""footer footer";min-height:100vh;display:grid}.app-header{background:linear-gradient(135deg, var(--brand) 0%, var(--brand-dark) 100%);color:#fff;z-index:20;grid-area:header;align-items:center;gap:14px;padding:0 20px;display:flex}.app-header .menu-toggle{color:#fff;cursor:pointer;background:#ffffff26;border:1px solid #ffffff4d;border-radius:8px;justify-content:center;align-items:center;width:34px;height:34px;font-size:16px;display:none}.app-header .brand{white-space:nowrap;text-overflow:ellipsis;align-items:center;gap:10px;min-width:0;font-family:Space Grotesk,sans-serif;font-size:16px;font-weight:700;display:flex;overflow:hidden}.app-header .brand-logo{width:auto;height:26px;display:block}.app-header .brand .badge{letter-spacing:1.2px;text-transform:uppercase;background:#ffffff26;border:1px solid #ffffff4d;border-radius:20px;padding:2px 8px;font-size:10px;font-weight:700}.app-header .page-title{opacity:.85;border-left:1px solid #ffffff40;margin-left:4px;padding-left:14px;font-size:14px;font-weight:600}.app-header .spacer{flex:1}.app-header .login-btn{color:#fff;cursor:pointer;background:#ffffff1f;border:1px solid #ffffff59;border-radius:8px;padding:7px 16px;font-size:13px;font-weight:600;transition:background .15s}.app-header .login-btn:hover{background:#ffffff38}.app-header .user-menu{align-items:center;gap:12px;display:flex}.app-header .user-name{opacity:.9;font-size:13px;font-weight:600}.app-header .logout-btn{color:#fff;cursor:pointer;background:#ffffff1f;border:1px solid #ffffff59;border-radius:8px;padding:7px 14px;font-size:13px;font-weight:600;transition:background .15s}.app-header .logout-btn:hover{background:#ffffff38}.app-sidebar{border-right:1px solid var(--gray-200);background:#fff;grid-area:sidebar;padding:16px 12px 24px;overflow-y:auto}.app-sidebar .nav-section-label{letter-spacing:1px;text-transform:uppercase;color:var(--gray-500);padding:8px 12px 6px;font-size:11px;font-weight:700}.app-sidebar .nav-link{color:var(--gray-700);border-radius:8px;align-items:center;gap:10px;margin-bottom:2px;padding:10px 12px;font-size:13.5px;font-weight:600;transition:background .15s,color .15s;display:flex}.app-sidebar .nav-link .nav-icon{text-align:center;flex-shrink:0;width:20px;font-size:16px}.app-sidebar .nav-link:hover{background:var(--gray-100);color:var(--gray-900)}.app-sidebar .nav-link.active{background:var(--brand-light);color:var(--brand-dark)}.app-sidebar .nav-divider{background:var(--gray-200);height:1px;margin:12px 4px}.sidebar-backdrop{display:none}.app-main{grid-area:main;min-width:0;overflow:auto}.app-footer{border-top:1px solid var(--gray-200);color:var(--gray-500);text-align:center;background:#fff;grid-area:footer;justify-content:center;align-items:center;padding:0 16px;font-size:12px;display:flex}.dashboard{max-width:1100px;margin:0 auto;padding:32px 24px}.dashboard .intro{margin-bottom:28px}.dashboard .intro h1{margin-bottom:6px;font-size:26px}.dashboard .intro p{color:var(--gray-500);font-size:14px}.tools-grid{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:16px;display:grid}.tool-card{border:1px solid var(--gray-200);border-radius:var(--radius);cursor:pointer;background:#fff;padding:22px;transition:all .2s;display:block;position:relative;box-shadow:0 1px 3px #0000000f}.tool-card:hover{border-color:var(--brand);transform:translateY(-2px);box-shadow:0 4px 12px #1b6a822e}.tool-card .tool-icon{background:var(--brand-light);border-radius:10px;justify-content:center;align-items:center;width:44px;height:44px;margin-bottom:14px;font-size:21px;display:flex}.tool-card .tool-arrow{color:var(--gray-500);font-size:18px;transition:all .2s;position:absolute;top:22px;right:22px}.tool-card:hover .tool-arrow{color:var(--brand);transform:translate(3px)}.tool-card .tool-name{color:var(--gray-900);margin-bottom:6px;font-size:15px;font-weight:700}.tool-card .tool-desc{color:var(--gray-500);font-size:12.5px;line-height:1.5}.tool-view{flex-direction:column;height:100%;display:flex}.tool-view iframe{background:#fff;border:none;flex:1;width:100%}.tool-not-found{padding:40px}.login-page{background:linear-gradient(135deg, var(--brand) 0%, var(--brand-dark) 100%);justify-content:center;align-items:center;min-height:100vh;padding:24px;display:flex}.login-card{background:#fff;border-radius:16px;width:100%;max-width:380px;padding:36px 32px;box-shadow:0 20px 50px #00000040}.login-brand{color:var(--brand-dark);align-items:center;gap:10px;margin-bottom:24px;font-family:Space Grotesk,sans-serif;font-size:15px;font-weight:700;display:flex}.login-brand .login-logo{width:auto;height:22px;display:block}.login-brand .badge{letter-spacing:1.2px;text-transform:uppercase;background:var(--brand-light);color:var(--brand-dark);border-radius:20px;padding:2px 8px;font-size:10px;font-weight:700}.login-card h1{margin-bottom:4px;font-size:24px}.login-sub{color:var(--gray-500);margin-bottom:24px;font-size:13px}.login-field{margin-bottom:16px;display:block}.login-field span{color:var(--gray-700);margin-bottom:6px;font-size:12.5px;font-weight:600;display:block}.login-field input{border:1px solid var(--gray-200);width:100%;color:var(--gray-900);border-radius:8px;padding:10px 12px;font-family:inherit;font-size:14px}.login-field input:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-light);outline:none}.login-error{color:#b91c1c;background:#fef2f2;border:1px solid #fca5a5;border-radius:8px;margin-bottom:16px;padding:8px 12px;font-size:13px}.login-submit{background:var(--brand);color:#fff;cursor:pointer;border:none;border-radius:8px;width:100%;padding:11px;font-size:14px;font-weight:700;transition:background .15s}.login-submit:hover{background:var(--brand-dark)}.login-submit:disabled{opacity:.7;cursor:not-allowed}@media (width<=480px){.app-header .brand .badge,.app-header .user-name{display:none}.app-header .login-btn{padding:7px 12px}}@media (width<=900px){.app-shell{grid-template-columns:1fr;grid-template-areas:"header""main""footer"}.app-header .menu-toggle{display:flex}.app-sidebar{top:var(--header-h);width:var(--sidebar-w);z-index:30;transition:transform .2s;position:fixed;bottom:0;left:0;transform:translate(-100%);box-shadow:4px 0 16px #0000001f}.app-sidebar.open{transform:translate(0)}.sidebar-backdrop.open{inset:var(--header-h) 0 0 0;z-index:25;background:#00000059;display:block;position:fixed}.dashboard{padding:20px 14px}.tools-grid{grid-template-columns:1fr}}