:root{--bg:#f8f8f8;--panel:#ffffff;--ink:#1a1a1a;--muted:#6b6f76;--accent:#ff500a;--accent-hover:#e5470a;--accent-ink:#ffffff;--accent-tint:#ffe9dd;--line:#e6e7e9;--radius:8px;--radius-sm:4px;--ease:cubic-bezier(.22,1,.36,1);--font:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif}*{box-sizing:border-box}body,html{margin:0;padding:0}body{background:var(--bg);color:var(--ink);font-family:var(--font);line-height:1.5}a{color:inherit}.btn{display:inline-block;background:var(--accent);color:var(--accent-ink);border:0;border-radius:var(--radius-sm);padding:10px 16px;font-weight:600;cursor:pointer;text-decoration:none;transition:background-color .15s var(--ease),border-color .15s var(--ease)}.btn:hover{background:var(--accent-hover)}.btn.secondary{background:#fff;color:var(--ink);border:1px solid var(--line)}.btn.secondary:hover{border-color:#c9ccd0}.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px}.container{max-width:960px;margin:0 auto;padding:24px 20px}.muted{color:var(--muted)}input,select{width:100%;padding:10px 12px;border:1px solid var(--line);border-radius:6px;font:inherit;background:#fff}.auth-wrap{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:20px;padding:20px}.brand{font-weight:800;letter-spacing:.5px;font-size:20px}.brand span{color:var(--accent)}.auth-card{width:100%;max-width:380px}.auth-card h2{margin:0 0 6px}.auth-card label{display:block;margin:14px 0 6px;font-weight:600;font-size:14px}.topnav{justify-content:space-between;padding:14px 20px;background:#fff;border-bottom:1px solid var(--line)}.topnav,.topnav nav{display:flex;align-items:center}.topnav nav{gap:16px}.navlink{color:var(--muted);text-decoration:none;font-weight:600;font-size:14px}.linkbtn{background:none;border:0;cursor:pointer;font:inherit}.row-between{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}.create-card{margin:16px 0 24px}.create-row{display:flex;gap:12px;align-items:flex-end;flex-wrap:wrap}.create-row>div{flex:1 1;min-width:160px}.tunnel-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));grid-gap:14px;gap:14px}.tunnel-card{text-decoration:none;display:block}.tunnel-route{font-weight:700;font-size:16px;margin-bottom:4px}.small{font-size:13px}.pill{display:inline-block;padding:2px 10px;border-radius:999px;background:#eaf7ee;color:#1a7f37;font-size:12px;font-weight:700}.error,.pill{margin-top:10px}.error{color:#b42318}.qr{width:220px;height:220px;margin:16px 0}.qr svg{width:100%;height:100%}.chart{width:100%;height:auto;background:#fafafa;border:1px solid var(--line);border-radius:6px}.toggle{display:inline-flex;align-items:center;gap:8px;font-weight:600;cursor:pointer}.toggle input{width:auto}.langswitch{display:inline-flex;align-items:center;gap:4px;color:var(--muted)}.langswitch button{background:none;border:0;padding:2px 4px;cursor:pointer;font:inherit;font-weight:700;font-size:13px;color:var(--muted)}.langswitch button.on{color:var(--accent)}.langswitch button:hover{color:var(--ink)}.auth-top{position:absolute;top:16px;right:20px}.welcome{min-height:100vh;align-items:center;justify-content:center;gap:18px;padding:24px;text-align:center}.welcome,.welcome-greeting{display:flex;flex-direction:column}.welcome-greeting{gap:4px;font-size:34px;font-weight:700;letter-spacing:-.5px}.welcome-greeting span:nth-child(2){color:var(--muted);font-size:26px;font-weight:600}.welcome-actions{display:flex;gap:12px;margin-top:8px;flex-wrap:wrap;justify-content:center}.welcome-actions .btn{min-width:140px}