*,:after,:before{box-sizing:border-box;margin:0;padding:0}:root{--bg:#f4f6f8;--surface:#ffffff;--border:#e2e6ea;--accent:#2563eb;--green:#16a34a;--amber:#d97706;--rose:#dc2626;--text:#111827;--text-muted:#6b7280;--navy:#1e293b;--radius:8px;--shadow:0 1px 3px rgba(0,0,0,0.08),0 1px 2px rgba(0,0,0,0.05)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;background:var(--bg);color:var(--text);min-height:100vh;font-size:14px;line-height:1.5}a{color:inherit;text-decoration:none}nav{background:var(--navy);height:56px;padding:0 32px;gap:24px;position:-webkit-sticky;position:sticky;top:0;z-index:100;box-shadow:0 1px 0 rgba(255,255,255,.05),0 2px 8px rgba(0,0,0,.2)}.nav-logo,nav{display:flex;align-items:center}.nav-logo{gap:10px;margin-right:16px}.nav-logo-mark{width:30px;height:30px;background:var(--accent);border-radius:6px;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:12px;color:#fff;letter-spacing:-.5px;flex-shrink:0}.nav-title{font-size:14px;font-weight:700;color:#f1f5f9}.nav-links{display:flex;gap:4px}.nav-link{color:#94a3b8;font-size:13px;font-weight:500;padding:6px 12px;border-radius:6px;transition:all .15s}.nav-link:hover{background:rgba(255,255,255,.07);color:#f1f5f9}.nav-link.active{background:rgba(37,99,235,.25);color:#93c5fd}.nav-spacer{flex:1 1}.nav-user{font-size:12px;color:#64748b;display:flex;align-items:center;gap:8px}.btn-signout{background:none;border:1px solid #334155;color:#94a3b8;padding:4px 10px;border-radius:5px;font-size:11px;cursor:pointer;transition:all .15s}.btn-signout:hover{border-color:#94a3b8;color:#f1f5f9}main{max-width:1400px;margin:0 auto;padding:28px 32px}.tool-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));grid-gap:16px;gap:16px;margin-top:24px}.tool-card{background:var(--surface);border-left:1px solid var(--border);border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);cursor:pointer;transition:all .15s;display:flex;flex-direction:column;gap:8px;border:1px solid var(--border);border-left-width:4px}.tool-card:hover{box-shadow:0 4px 12px rgba(0,0,0,.1);transform:translateY(-1px)}.tool-card.blue{border-left-color:var(--accent)}.tool-card.green{border-left-color:var(--green)}.tool-card.amber{border-left-color:var(--amber)}.tool-card.rose{border-left-color:var(--rose)}.tool-card-icon{font-size:24px}.tool-card-title{font-size:15px;font-weight:700;color:var(--text)}.tool-card-desc{font-size:13px;color:var(--text-muted)}.tool-card-badge{display:inline-block;font-size:10px;font-weight:600;text-transform:uppercase;letter-spacing:.5px;padding:2px 8px;border-radius:20px;margin-top:4px;width:-moz-fit-content;width:fit-content}.badge-live{background:#dcfce7;color:#166534}.badge-soon{background:#f3f4f6;color:#6b7280}.auth-wrap{min-height:100vh;display:flex;align-items:center;justify-content:center;background:var(--bg)}.auth-card{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:40px;width:100%;max-width:400px;box-shadow:0 4px 24px rgba(0,0,0,.08)}.auth-logo{gap:10px;margin-bottom:28px}.auth-logo,.auth-logo-mark{display:flex;align-items:center}.auth-logo-mark{width:36px;height:36px;background:var(--accent);border-radius:8px;justify-content:center;font-weight:700;font-size:14px;color:#fff}.auth-logo-text{font-size:16px;font-weight:700}.auth-logo-sub{font-size:12px;color:var(--text-muted)}.auth-title{font-size:20px;font-weight:700;margin-bottom:6px}.auth-sub{font-size:13px;color:var(--text-muted);margin-bottom:24px}.form-group{display:flex;flex-direction:column;gap:5px;margin-bottom:16px}.form-label{font-size:12px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:.5px}.form-input{background:#fff;border:1px solid #d1d5db;border-radius:6px;padding:9px 12px;font-size:14px;outline:none;transition:border-color .15s,box-shadow .15s}.form-input:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(37,99,235,.1)}.btn-primary{width:100%;background:var(--accent);color:#fff;border:none;border-radius:6px;padding:10px;font-size:14px;font-weight:600;cursor:pointer;transition:background .15s}.btn-primary:hover{background:#1d4ed8}.btn-primary:disabled{background:#93c5fd;cursor:not-allowed}.auth-error{background:#fef2f2;border:1px solid #fecaca;color:#dc2626;border-radius:6px}.auth-error,.auth-success{padding:10px 14px;font-size:13px;margin-bottom:16px}.auth-success{background:#f0fdf4;border:1px solid #bbf7d0;color:#166534;border-radius:6px}