.y-tools{--primary:#0f1d42;--primary-light:#1a4fd0;background:#f8fafc;color:#0f172a;min-width:0}
.y-tools-hero{padding:48px 0;background:linear-gradient(135deg,#0f1d42,#0a1429);color:#fff}
.y-tools-hero h1{font-size:36px;font-weight:700;margin:0 0 12px}.y-tools-hero p{color:#e2e8f0;font-size:18px}
.y-tool-intro{padding-top:30px;line-height:1.8}.y-tool-group{border-left:4px solid #0f1d42;padding-left:12px}
.y-tools-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.y-tool-card{display:flex;align-items:center;gap:12px;padding:16px;border:1px solid #e2e8f0;background:#fff;color:inherit;text-decoration:none;transition:box-shadow .2s}
.y-tool-card:hover{box-shadow:0 4px 14px #0f1d4210;border-color:#bac7e5}.y-tool-card strong{display:block;font-size:14px;font-weight:500}.y-tool-card small{display:block;margin-top:5px;color:#64748b;font-size:12px;line-height:1.6}
.y-tool-icon{display:flex;width:40px;height:40px;flex:0 0 40px;align-items:center;justify-content:center;background:#edf0f7;color:#0f1d42}.y-tool-icon svg{width:20px;height:20px}
.y-tool-breadcrumb{padding:16px 0;background:#0f1d42;color:#fff;font-size:14px}.y-tool-breadcrumb a{color:inherit}.y-tool-back{color:#0f1d42;text-decoration:underline;text-underline-offset:4px}
.y-tools .calculator-card{border:1px solid #e2e8f0;min-width:0}.y-tools .grid>*{min-width:0}.y-tools input,.y-tools select{min-width:0;max-width:100%;background-color:#fff;color:#0f172a}.y-tools input[type=number]{min-height:44px}.y-tools input:focus-visible,.y-tools select:focus-visible,.y-tools button:focus-visible,.y-tools a:focus-visible{outline:3px solid #5380e2;outline-offset:3px}
.y-tools .btn-primary,.y-tools button[type=submit]{background:linear-gradient(135deg,#0f1d42,#1a4fd0);color:#fff}.y-tools button{cursor:pointer}.y-tools [hidden]{display:none!important}.y-tools .hidden{display:none}
.y-tool-error{padding:12px 16px;margin:0 0 18px;border-left:4px solid #b42318;background:#fff1f0;color:#a5231b;line-height:1.7;font-size:14px}
.y-tool-note{padding:14px 16px;background:#edf2fa;color:#344563;line-height:1.8;font-size:14px;margin-top:16px}.y-tool-note-important{border-left:3px solid #ab7b26;background:#fff9eb;color:#73501a;max-width:960px;text-align:left}
.y-tools .color-option{display:inline-block;width:30px;height:30px;margin:4px;border:2px solid #d1d5db;border-radius:50%}.y-tools .color-option.selected{outline:2px solid #0f1d42;outline-offset:2px}.y-tools svg{max-width:100%}
.y-tools [class*=overflow-x-auto]{max-width:100%;overflow-x:auto}.y-tools table{width:100%}.y-tools td,.y-tools th{white-space:normal}.y-tools .result-display{overflow-wrap:anywhere}
@media(max-width:1100px){.y-tools-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:800px){.y-tools-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:520px){.y-tools-grid{grid-template-columns:1fr}.y-tools-hero h1{font-size:30px}.y-tools .p-8{padding:20px}.y-tools .p-6{padding:18px}.y-tools .px-6{padding-left:20px;padding-right:20px}.y-tools .text-4xl{font-size:28px}.y-tools th,.y-tools td{padding:8px;font-size:12px}.y-tools .y-tool-card{padding:16px}}