.tools-main{max-width:1050px;margin:auto;padding:0 24px 70px}.tools-hero{padding:56px 0 30px}.tools-hero h1{font-size:clamp(2.8rem,7vw,4.6rem);letter-spacing:-.055em;margin:12px 0}.tools-hero h1 span{color:#73a8ff}.tools-intro{max-width:720px;color:#aebdd1;font-size:1.08rem;line-height:1.75}.tools-tags{display:flex;gap:9px;flex-wrap:wrap;margin-top:20px}.tools-tags span{border:1px solid #2b4058;border-radius:999px;padding:6px 10px;color:#bdcce0;font-size:.8rem}.tools-nav{display:flex;gap:9px;flex-wrap:wrap;position:sticky;top:0;z-index:4;padding:12px 0;background:rgba(10,17,29,.96);border-bottom:1px solid #26354a}.tools-nav a{padding:8px 10px;color:#c9d7ea;text-decoration:none;border-radius:8px;font-size:.88rem}.tools-nav a:hover{background:#1a2a40}.tool-section{padding:38px 0 44px;border-bottom:1px solid #26354a;scroll-margin-top:70px}.tool-heading{margin-bottom:20px}.tool-heading h2{font-size:clamp(1.8rem,4vw,2.4rem);margin:.25em 0}.tool-heading p:not(.eyebrow){color:#aebdd1;line-height:1.7}.tool-panel{padding:22px;background:#111d2e;border:1px solid #293b52;border-radius:14px}.subnet-form{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr) auto;align-items:end;gap:10px 14px}.tool-panel label{display:block;color:#bdcce0;font-size:.87rem;margin-bottom:7px}.tool-panel input,.tool-panel select{width:100%;min-width:0;padding:11px 12px;color:#eef4ff;background:#0b1523;border:1px solid #354861;border-radius:8px;outline-offset:2px}.prefix-row{display:flex;align-items:center;gap:10px}.prefix-row span{color:#91a5bf;font-size:.83rem;white-space:nowrap}.tool-button{padding:11px 15px;border:0;border-radius:8px;background:#3cbd9b;color:#061a19;font-weight:800;cursor:pointer;white-space:nowrap}.tool-button:hover{background:#65d9b7}.tool-error{grid-column:1/-1;color:#ffaaa8;margin:3px 0 0}.results-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:14px}.result-card{padding:15px;background:#111d2e;border:1px solid #293b52;border-radius:12px;min-width:0}.result-card span,.result-card strong{display:block}.result-card span{color:#9fb0c7;font-size:.82rem;margin-bottom:8px}.result-card strong{color:#edf5ff;font-size:.96rem;overflow-wrap:anywhere}.tool-note{color:#91a5bf;font-size:.86rem;line-height:1.7;margin-top:14px}.vlan-form{margin-bottom:14px}.field-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:15px;margin-bottom:18px}.field-grid>div[hidden]{display:none}.code-panel{overflow:hidden;background:#070d16;border:1px solid #29384d;border-radius:12px}.code-panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:12px 15px;background:#111d2e;border-bottom:1px solid #29384d;color:#c0cee0;font-size:.86rem}.code-panel pre{margin:0;border:0;border-radius:0;padding:18px;overflow:auto;line-height:1.8;color:#d7e5f7}.code-panel code,.command-card code{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;color:#85e5cb;white-space:pre}.copy-button{padding:8px 11px;border:1px solid #365575;background:#1a3550;color:#e7f1ff;border-radius:8px;cursor:pointer;white-space:nowrap}.copy-button:hover{background:#24496c}.command-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}.command-card{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;padding:16px;background:#111d2e;border:1px solid #293b52;border-radius:12px;min-width:0}.command-card>div{min-width:0}.command-card code{overflow-wrap:anywhere;white-space:normal}.command-card p{margin:7px 0 0;color:#aebdd1;font-size:.88rem;line-height:1.6}.copy-status{min-height:1.4em;color:#75e3d0;font-size:.86rem}.tool-footer-note{display:flex;gap:12px;padding:17px 18px;margin:30px 0 0;background:#0e1b2a;border:1px solid #293b52;border-radius:12px;color:#aebdd1;font-size:.9rem;line-height:1.7}.tool-footer-note strong{color:#75e3d0;white-space:nowrap}@media(max-width:760px){.subnet-form{grid-template-columns:1fr 1fr}.subnet-form .tool-button{grid-column:1/-1;justify-self:start}.results-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.command-list{grid-template-columns:1fr}}@media(max-width:520px){.tools-main{padding:0 16px 50px}.tools-hero{padding-top:38px}.subnet-form,.field-grid,.results-grid{grid-template-columns:1fr}.subnet-form .tool-button{grid-column:auto}.tools-nav{gap:3px}.tools-nav a{font-size:.78rem;padding:7px}.command-card{align-items:flex-start}.tool-footer-note{display:block}.tool-footer-note strong{display:block;margin-bottom:5px}.site-header{padding:16px}.site-header nav{gap:9px;flex-wrap:wrap}.site-header nav a{font-size:.8rem}}