.hero-oil-guide{position:relative}.hero-oil-guide:before{content:"";position:absolute;top:-100px;right:-100px;width:300px;height:300px;border-radius:50%;background:#b832320d;filter:blur(60px);z-index:0}.hero-gradient-text{background:linear-gradient(135deg,#fff,#e5e7eb);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.hero-card{transition:all .3s ease;border:1px solid rgba(255,255,255,.1)}.hero-card:hover{transform:translateY(-5px);box-shadow:0 15px 30px #0003;border-color:#ffffff4d}.oil-finder-container{display:flex;flex-wrap:wrap;gap:2rem;padding:2rem 0;max-width:1200px;margin:0 auto}.oil-finder-form{flex:1;min-width:300px;background:#f5f5f5;padding:2rem;border-radius:8px;box-shadow:0 2px 10px #0000001a}.results-container{flex:2;min-width:300px;background:#fff;padding:2rem;border-radius:8px;box-shadow:0 2px 10px #0000001a}.form-group{margin-bottom:1.5rem}.form-group label{display:block;margin-bottom:.5rem;font-weight:600}.form-group select{width:100%;padding:.75rem;border:1px solid #ddd;border-radius:4px;font-size:1rem}#findOilBtn{background-color:#06c;color:#fff;border:none;padding:.75rem 1.5rem;border-radius:4px;cursor:pointer;font-size:1rem;font-weight:600;transition:background-color .3s;width:100%}#findOilBtn:hover{background-color:#004c99}#findOilBtn:disabled{background-color:#ccc;cursor:not-allowed}.oil-results{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:1.5rem}.oil-card{border:1px solid #eee;border-radius:8px;overflow:hidden;transition:transform .3s,box-shadow .3s}.oil-card:hover{transform:translateY(-5px);box-shadow:0 5px 15px #0000001a}.oil-card-image{height:180px;background-color:#f5f5f5;display:flex;align-items:center;justify-content:center}.oil-card-image img{max-width:100%;max-height:100%;object-fit:contain}.oil-card-content{padding:1.5rem}.oil-card-title{font-size:1.25rem;margin-bottom:.5rem;font-weight:600}.oil-card-specs{margin-bottom:1rem}.oil-card-spec{display:flex;justify-content:space-between;margin-bottom:.25rem}.oil-card-spec-label{font-weight:600;color:#666}.oil-card-description{color:#666;margin-bottom:1.5rem;line-height:1.5}.oil-card-action{display:flex;justify-content:flex-end;align-items:center}.oil-card-button{background-color:#06c;color:#fff;border:none;padding:.5rem 1rem;border-radius:4px;cursor:pointer;transition:background-color .3s}.oil-card-button:hover{background-color:#004c99}.no-results{grid-column:1 / -1;text-align:center;padding:2rem;color:#666}.loading{display:flex;justify-content:center;align-items:center;min-height:200px}.loading-spinner{border:4px solid #f3f3f3;border-top:4px solid #0066cc;border-radius:50%;width:40px;height:40px;animation:spin 1s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.hsn-tsn-section{background:#f8fafc;border:2px solid #e2e8f0;border-radius:12px;padding:1.5rem;transition:all .3s ease;margin:1rem 0}.hsn-tsn-section:focus-within{border-color:var(--primary-color);box-shadow:0 0 0 3px #0055cc1a}.hsn-tsn-section h3{margin-bottom:1rem;display:flex;align-items:center;font-size:1rem;font-weight:600;color:#374151}.hsn-tsn-section .grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;align-items:end}.hsn-input,.tsn-input{font-family:Courier New,monospace;font-weight:700;font-size:1.1rem;letter-spacing:.15em;text-align:center;text-transform:uppercase;height:3.5rem;border:2px solid #d1d5db;border-radius:8px;background-color:#fff;transition:all .3s ease;box-shadow:0 1px 3px #0000001a}.hsn-input:focus,.tsn-input:focus{outline:none;border-color:var(--primary-color);box-shadow:0 0 0 3px #0055cc1a,0 4px 12px #0055cc26;transform:translateY(-1px)}.hsn-input:valid,.tsn-input:valid{border-color:#10b981;background-color:#f0fdf4;box-shadow:0 0 0 3px #10b9811a}.hsn-input:invalid:not(:placeholder-shown),.tsn-input:invalid:not(:placeholder-shown){border-color:#ef4444;background-color:#fef2f2;box-shadow:0 0 0 3px #ef44441a}.hsn-input::placeholder,.tsn-input::placeholder{color:#9ca3af;font-weight:500;letter-spacing:.1em}.hsn-tsn-section label{display:block;font-weight:600;color:#374151;margin-bottom:.5rem;font-size:.95rem}.hsn-tsn-section label .text-xs{display:block;margin-top:.25rem;color:#6b7280;font-weight:400;font-size:.8rem}.hsn-tsn-section .mt-3 p{background-color:#eff6ff;border:1px solid #bfdbfe;border-radius:6px;padding:.75rem;margin-top:1rem;font-size:.85rem;color:#1e40af;line-height:1.4}.hsn-tsn-section .mt-3 p i{color:#3b82f6;margin-right:.5rem}@media(max-width:640px){.hsn-tsn-section .grid{grid-template-columns:1fr;gap:1.25rem}.hsn-input,.tsn-input{font-size:1rem;height:3rem}}.form-separator{position:relative;margin:1.5rem 0}.form-separator:before{content:"";position:absolute;top:50%;left:0;right:0;height:1px;background:linear-gradient(to right,transparent,#d1d5db,transparent)}.form-separator span{background:#fff;padding:0 1rem;color:#6b7280;font-size:.875rem;font-weight:500}@media(max-width:768px){.oil-finder-container{flex-direction:column}.oil-results{grid-template-columns:1fr}}