:root{--color-navy: #0F2A47;--color-navy-dark: #0A1C30;--color-green: #16A34A;--color-green-hover: #15803D;--color-green-soft: #E8F7EE;--color-green-light: #F0FDF4;--color-bg: #F8FAFC;--color-surface: #FFFFFF;--color-border: #E2E8F0;--color-border-focus: #16A34A;--color-text: #1E293B;--color-text-muted: #64748B;--color-text-light: #94A3B8;--color-amber: #F59E0B;--color-amber-soft: #FEF3C7;--color-red: #DC2626;--color-red-soft: #FEE2E2;--color-purple-creator: #7C3AED;--color-purple-soft: #F3E8FF;--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--font-heading: "Inter", "Poppins", -apple-system, BlinkMacSystemFont, sans-serif;--container-max: 1120px;--article-max: 720px;--radius-card: 12px;--radius-btn: 8px;--radius-input: 8px;--shadow-sm: 0 1px 2px 0 rgba(15, 42, 71, .05);--shadow-card: 0 2px 8px -1px rgba(15, 42, 71, .08), 0 1px 4px -1px rgba(15, 42, 71, .04)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-family:var(--font-family);font-size:16px;line-height:1.6;color:var(--color-text);background-color:var(--color-bg);-webkit-font-smoothing:antialiased}body{min-height:100vh;display:flex;flex-direction:column}main{flex:1}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);color:var(--color-navy);font-weight:700;line-height:1.25}h1{font-size:2.25rem;letter-spacing:-.02em}h2{font-size:1.65rem;letter-spacing:-.01em}h3{font-size:1.25rem}p{color:var(--color-text);margin-bottom:1rem}a{color:var(--color-navy);text-decoration:none;transition:color .15s ease}a:hover{color:var(--color-green)}.container{width:100%;max-width:var(--container-max);margin-left:auto;margin-right:auto;padding-left:1.25rem;padding-right:1.25rem}.article-container{max-width:var(--article-max)}.card{background:var(--color-surface);border-radius:var(--radius-card);border:1px solid var(--color-border);box-shadow:var(--shadow-card);padding:1.5rem}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;font-family:var(--font-heading);font-weight:600;font-size:.95rem;border-radius:var(--radius-btn);padding:.65rem 1.25rem;min-height:44px;cursor:pointer;border:none;text-decoration:none;transition:all .15s ease}.btn-primary{background-color:var(--color-navy);color:#fff}.btn-primary:hover{background-color:var(--color-navy-dark);color:#fff}.btn-success,.btn-calculate{background-color:var(--color-green);color:#fff}.btn-success:hover,.btn-calculate:hover{background-color:var(--color-green-hover);color:#fff}.btn-outline{background:transparent;border:1px solid var(--color-border);color:var(--color-text)}.btn-outline:hover{border-color:var(--color-navy);color:var(--color-navy)}.badge{display:inline-flex;align-items:center;gap:.35rem;padding:.25rem .65rem;border-radius:9999px;font-size:.8rem;font-weight:600}.badge-amber{background-color:var(--color-amber-soft);color:#92400e;border:1px solid #FCD34D}.badge-green{background-color:var(--color-green-soft);color:#14532d;border:1px solid #BBF7D0}.badge-purple{background-color:var(--color-purple-soft);color:#5b21b6;border:1px solid #DDD6FE}input,select,textarea{font-family:inherit;font-size:16px;color:var(--color-text);border:1px solid var(--color-border);border-radius:var(--radius-input);padding:.65rem .85rem;background-color:#fff;width:100%;transition:border-color .15s ease,box-shadow .15s ease}input:focus,select:focus,textarea:focus{outline:none;border-color:var(--color-border-focus);box-shadow:0 0 0 3px #16a34a26}label{display:block;font-size:.9rem;font-weight:600;color:var(--color-text);margin-bottom:.35rem}.input-group{position:relative;display:flex;align-items:center}.input-prefix,.input-suffix{position:absolute;color:var(--color-text-muted);font-weight:500;font-size:.95rem;pointer-events:none}.input-prefix{left:.75rem}.input-prefix+input{padding-left:1.75rem}.input-suffix{right:.75rem}.has-suffix input{padding-right:2.25rem}.result-panel{background-color:var(--color-green-soft);border:1px solid #C6EED5;border-radius:var(--radius-card);padding:1.5rem}.result-number{font-size:2.25rem;font-weight:700;color:var(--color-green);font-variant-numeric:tabular-nums;line-height:1.1;margin:.5rem 0}.breadcrumbs{font-size:.875rem;color:var(--color-text-muted);display:flex;align-items:center;gap:.5rem;margin-bottom:1rem}.breadcrumbs a{color:var(--color-text-muted)}.breadcrumbs a:hover{color:var(--color-navy)}.breadcrumbs span.separator{color:var(--color-text-light)}.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:1.5rem}.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:1.25rem}.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem}@media(max-width:900px){.grid-4{grid-template-columns:repeat(2,1fr)}.grid-3{grid-template-columns:repeat(1,1fr)}}@media(max-width:680px){.grid-2,.grid-4{grid-template-columns:1fr}h1{font-size:1.75rem}h2{font-size:1.35rem}}