:root{--bg:#101827;--card:#162235;--line:#30425e;--text:#f3f6fb;--muted:#a9b3c4;--blue:#4d7cff;--green:#12b886;--red:#ef4444;--orange:#f59e0b}*{box-sizing:border-box}body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;background:var(--bg);color:var(--text)}a{color:inherit;text-decoration:none}.topbar{height:68px;display:flex;align-items:center;justify-content:space-between;padding:0 40px;border-bottom:1px solid #1e2c42;background:#0d1524;position:sticky;top:0;z-index:10}.brand{font-weight:800;font-size:24px}.navlinks a{margin-left:18px;color:#c8d1e0}.container{max-width:1180px;margin:0 auto;padding:32px 20px}.hero{text-align:center;padding:34px 0}.hero h1{font-size:58px;line-height:1.05;margin:0 0 20px;font-weight:900}.hero .grad{color:#6d8cff}.hero p{font-size:19px;color:var(--muted);max-width:690px;margin:0 auto 28px;line-height:1.45}.shortener{max-width:808px;margin:0 auto;border:1px solid #2d3c55;border-radius:15px;background:#141f31;padding:28px}.input-row{display:flex;gap:14px}.input-row input{flex:1}.feature-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:22px}.feature-box{border:1px solid #44556f;border-radius:9px;padding:18px;text-align:center;color:#dfe5ef;font-weight:700}.feature-box span{display:block;width:34px;height:34px;line-height:34px;border-radius:9px;margin:0 auto 10px;background:#173776;color:#8eadff}.card{background:var(--card);border:1px solid #2f405b;border-radius:14px;padding:24px;margin-bottom:20px;box-shadow:0 8px 25px rgba(0,0,0,.08)}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}.row{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}label{display:block;margin:12px 0 7px;color:#d9e0ec;font-weight:700}input,select,textarea{width:100%;padding:14px 15px;border-radius:10px;border:1px solid #40536f;background:#111b2b;color:var(--text);font-size:15px}button,.btn{display:inline-block;padding:13px 18px;border:0;border-radius:10px;background:var(--blue);color:white;font-weight:800;cursor:pointer}.btn.secondary,button.secondary{background:#334258}.btn.ok,button.ok{background:var(--green)}button.danger,.btn.danger{background:var(--red)}.muted{color:var(--muted)}.alert{padding:13px 15px;border-radius:10px;margin-bottom:15px}.alert.success{background:#0f3f2f}.alert.error{background:#4a1720}.alert.info{background:#18335e}.stats{font-size:42px;font-weight:900;margin-top:8px}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;min-width:760px}th,td{padding:13px;border-bottom:1px solid #2d3d56;text-align:left;vertical-align:top}th{color:#aeb8c9}.short-url{font-family:ui-monospace,Consolas,monospace;color:#9db7ff;word-break:break-all}.actions{display:flex;gap:8px;flex-wrap:wrap}.actions form{display:inline}.qr{background:white;padding:8px;border-radius:10px}.result-box{margin-top:20px;padding:18px;border:1px solid #31507d;border-radius:12px;background:#101a2b}.footer{text-align:center;color:#7e8aa1;padding:32px}@media(max-width:760px){.topbar{padding:0 16px}.navlinks a{margin-left:10px}.hero h1{font-size:38px}.input-row{display:block}.input-row button{margin-top:12px;width:100%}.feature-row{grid-template-columns:1fr 1fr}.card{padding:18px}}