:root{--amber-600:#d97706;--amber-500:#f59e0b;--amber-400:#fbbf24;--amber-100:#fef3c7;--navy-900:#0f2341;--navy-800:#1a3a5c;--warm-50:#fefce8;--warm-100:#fef9c3;--warm-200:#fef08a;--text-primary:#1e293b;--text-secondary:#475569;--text-muted:#94a3b8;--shadow-sm:0 1px 2px 0 rgba(0,0,0,.05);--shadow-md:0 4px 6px -1px rgba(0,0,0,.1),0 2px 4px -2px rgba(0,0,0,.1);--shadow-lg:0 10px 15px -3px rgba(0,0,0,.1),0 4px 6px -4px rgba(0,0,0,.1);--shadow-xl:0 20px 25px -5px rgba(0,0,0,.1),0 8px 10px -6px rgba(0,0,0,.1)}*,:after,:before{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;height:100%}body,html{overflow-x:hidden;min-height:100%;display:flex;flex-direction:column;font-family:Plus Jakarta Sans,-apple-system,BlinkMacSystemFont,sans-serif;color:var(--text-primary);background:#fff;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.6}a{color:inherit;text-decoration:none}button{cursor:pointer;font-family:inherit}::selection{background:var(--amber-400);color:var(--navy-900)}.container{width:100%;max-width:1100px;margin:0 auto;padding:0 1.25rem}.btn{display:inline-flex;align-items:center;gap:6px;padding:.75rem 1.5rem;border-radius:10px;font-size:.9375rem;font-weight:600;border:none;transition:all .15s;white-space:nowrap}.btn-primary{background:var(--amber-500);color:#fff}.btn-primary:hover{background:var(--amber-600);box-shadow:var(--shadow-lg);transform:translateY(-1px)}.btn-primary:active{transform:translateY(0)}.btn-primary:disabled{opacity:.65;cursor:not-allowed;transform:none;box-shadow:none}.btn-copy{background:var(--amber-100);color:var(--amber-600);border:1.5px solid var(--amber-400);padding:.4rem 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0}.section-header{text-align:center;margin-bottom:3rem}.section-title{font-family:Syne,sans-serif;font-size:max(1.75rem,min(4vw,2.5rem));font-weight:800;color:var(--navy-900);line-height:1.2;margin-bottom:.5rem}.section-sub{color:var(--text-secondary);font-size:1.0625rem;margin-top:.5rem}.features-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));grid-gap:1.5rem;gap:1.5rem}.feature-card{border:1.5px solid #e2e8f0;background:#fff;border-radius:16px;padding:1.75rem;transition:box-shadow .2s,transform .2s}.feature-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-2px)}.feature-icon{background:var(--warm-50);width:48px;height:48px;color:var(--amber-500);border-radius:12px;display:flex;align-items:center;justify-content:center;margin-bottom:1rem}.feature-icon svg{width:22px;height:22px}.feature-title{color:var(--navy-900);font-size:1.0625rem;font-weight:700;margin-bottom:.4rem}.feature-desc{color:var(--text-secondary);font-size:.9375rem;line-height:1.6}.how{background:var(--warm-50);padding:5rem 0}.steps{display:flex;flex-direction:column;gap:1.25rem;max-width:600px;margin:0 auto}.step{display:flex;align-items:center;gap:1.5rem;border:1.5px solid var(--warm-200);background:#fff;border-radius:14px;padding:1.25rem 1.5rem}.step-num{min-width:3rem;font-size:1.5rem;font-weight:800;color:var(--amber-400)}.step-text{color:var(--navy-800);font-size:1rem;font-weight:500}.tool{padding:5rem 0}.tool-wrapper{max-width:720px;margin:0 auto}.tool-form{margin-bottom:1.5rem}.input-group{display:flex;gap:.75rem;flex-wrap:wrap}.tool-input{flex:1 1;min-width:240px;border:1.5px solid #e2e8f0;border-radius:10px;padding:.875rem 1.125rem;font-size:.9375rem;background:#fff;color:var(--text-primary);box-shadow:var(--shadow-sm);outline:none;transition:border-color 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a:hover{text-decoration:underline}.footer-text strong{color:var(--text-primary)}@media (max-width:600px){.hero{padding:3.5rem 0 3rem}.features,.how,.tool{padding:3.5rem 0}.input-group{flex-direction:column}.tool-input{min-width:100%}.btn-primary{width:100%;justify-content:center}.step{gap:1rem;padding:1rem 1.125rem}.step-num{min-width:2.5rem;font-size:1.25rem}}