:root{--bg-dark: #0f172a;--bg-card: #1e293b;--text-primary: #f8fafc;--text-secondary: #94a3b8;--accent-primary: #3b82f6;--accent-hover: #2563eb;--accent-gradient: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);--success: #10b981;--border-color: #334155;--font-family: "Inter", system-ui, -apple-system, sans-serif}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font-family);background-color:var(--bg-dark);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased}.app-container{min-height:100vh;display:flex;flex-direction:column}.main-header{background-color:#0f172acc;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--border-color);padding:1rem 0;position:sticky;top:0;z-index:10}.header-content{max-width:1200px;margin:0 auto;padding:0 1.5rem;display:flex;justify-content:space-between;align-items:center}.logo{font-size:1.5rem;font-weight:700;color:var(--text-primary);text-decoration:none;letter-spacing:-.025em}.logo .highlight{color:var(--accent-primary)}nav{display:flex;gap:2rem}nav a{color:var(--text-secondary);text-decoration:none;font-weight:500;transition:color .2s}nav a:hover{color:var(--text-primary)}.main-content{flex:1;padding:3rem 1.5rem}.page-container{max-width:1200px;margin:0 auto;display:grid;grid-template-columns:1fr;gap:3rem}@media(min-width:1024px){.page-container{grid-template-columns:1.2fr .8fr;align-items:start}}.calculator-card{background-color:var(--bg-card);border-radius:1rem;padding:2rem;box-shadow:0 25px 50px -12px #00000040;border:1px solid var(--border-color)}.calculator-inputs h2{margin-bottom:1.5rem;font-size:1.25rem;font-weight:600}.input-row{display:grid;grid-template-columns:1fr;gap:1.5rem;margin-bottom:1.5rem}@media(min-width:640px){.input-row{grid-template-columns:1fr 1fr}}.input-group{margin-bottom:1.5rem}.input-row .input-group{margin-bottom:0}.input-group label{display:block;font-size:.875rem;font-weight:500;color:var(--text-secondary);margin-bottom:.5rem}.input-wrapper{position:relative;display:flex;align-items:center}.currency-symbol{position:absolute;left:1rem;color:var(--text-secondary);pointer-events:none}input,select{width:100%;background-color:var(--bg-dark);border:1px solid var(--border-color);border-radius:.5rem;padding:.75rem 1rem;color:var(--text-primary);font-size:1rem;transition:all .2s;outline:none}.input-wrapper input{padding-left:2rem}input:focus,select:focus{border-color:var(--accent-primary);box-shadow:0 0 0 2px #3b82f633}.calculator-results{margin-top:2rem;padding-top:2rem;border-top:1px solid var(--border-color)}.result-main{text-align:center;margin-bottom:2rem;background:linear-gradient(to bottom right,#3b82f61a,#2563eb0d);padding:2rem;border-radius:.75rem;border:1px solid rgba(59,130,246,.2)}.result-main h3{color:var(--text-secondary);font-size:.875rem;text-transform:uppercase;letter-spacing:.05em;margin-bottom:.5rem}.big-number{font-size:3rem;font-weight:800;color:var(--accent-primary);line-height:1}.detail-row{display:flex;justify-content:space-between;padding:.75rem 0;border-bottom:1px solid var(--border-color);color:var(--text-secondary)}.detail-row:last-child{border-bottom:none}.detail-row span:last-child{color:var(--text-primary);font-weight:600}.detail-row.total span:last-child{color:var(--success)}.seo-content{padding:2rem 0}.seo-content h1{font-size:2.5rem;font-weight:800;margin-bottom:1.5rem;background:var(--accent-gradient);-webkit-background-clip:text;-webkit-text-fill-color:transparent}.seo-content p{color:var(--text-secondary);font-size:1.125rem;line-height:1.75}.main-footer{border-top:1px solid var(--border-color);padding:2rem 0;text-align:center;color:var(--text-secondary);margin-top:auto}