*{margin:0;padding:0;box-sizing:border-box}:root{--costco-blue: #0051ba;--costco-red: #e31837;--text-dark: #333;--text-light: #666;--bg-light: #f5f5f5;--white: #ffffff;--success: #28a745;--shadow: 0 2px 8px rgba(0, 0, 0, .1);--shadow-lg: 0 4px 16px rgba(0, 0, 0, .15)}body{font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:linear-gradient(135deg,#667eea,#764ba2);min-height:100vh;color:var(--text-dark)}.app{max-width:600px;margin:0 auto;padding:20px;min-height:100vh}.header{background:var(--white);padding:24px;border-radius:16px;box-shadow:var(--shadow-lg);text-align:center;margin-bottom:24px}.header h1{color:var(--costco-blue);font-size:28px;font-weight:700;margin-bottom:8px}.header p{color:var(--text-light);font-size:16px}.search-section{background:var(--white);padding:24px;border-radius:16px;box-shadow:var(--shadow-lg);margin-bottom:24px}.radius-selector{margin-bottom:20px}.radius-selector label{display:block;font-weight:600;margin-bottom:12px;color:var(--text-dark);font-size:16px}.radius-buttons{display:flex;gap:12px;flex-wrap:wrap}.radius-btn{flex:1;min-width:80px;padding:14px 20px;border:2px solid var(--costco-blue);background:var(--white);color:var(--costco-blue);border-radius:12px;font-size:16px;font-weight:600;cursor:pointer;transition:all .2s ease;-webkit-tap-highlight-color:transparent}.radius-btn:hover{background:#e6f0ff}.radius-btn.active{background:var(--costco-blue);color:var(--white)}.radius-info{text-align:center;margin-bottom:2rem}.radius-info p{font-size:1.1rem;color:var(--costco-blue);font-weight:500;margin:0}.search-btn{width:100%;padding:16px;background:var(--costco-red);color:var(--white);border:none;border-radius:12px;font-size:18px;font-weight:700;cursor:pointer;transition:all .2s ease;box-shadow:var(--shadow);-webkit-tap-highlight-color:transparent}.search-btn:hover:not(:disabled){background:#c41430;transform:translateY(-2px);box-shadow:var(--shadow-lg)}.search-btn:disabled{background:#ccc;cursor:not-allowed}.spinner{border:3px solid var(--bg-light);border-top:3px solid var(--costco-blue);border-radius:50%;width:24px;height:24px;animation:spin .8s linear infinite;display:inline-block;margin-right:8px}.spinner-small{border:2px solid var(--bg-light);border-top:2px solid var(--costco-blue);border-radius:50%;width:16px;height:16px;animation:spin .8s linear infinite;display:inline-block;margin-right:8px}.search-status{margin-top:16px;padding:12px;background:#ffffffe6;border-radius:8px;font-size:14px;color:var(--costco-blue);display:flex;align-items:center;justify-content:center;font-weight:500}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.message{padding:16px;border-radius:12px;margin-bottom:20px;font-size:15px}.message.error{background:#fee;color:#c00;border:1px solid #fcc}.message.info{background:#e6f0ff;color:var(--costco-blue);border:1px solid #b3d9ff}.results-section{background:var(--white);padding:24px;border-radius:16px;box-shadow:var(--shadow-lg)}.results-header{margin-bottom:20px;padding-bottom:16px;border-bottom:2px solid var(--bg-light)}.results-header h2{color:var(--costco-blue);font-size:22px;margin-bottom:8px}.results-count{color:var(--text-light);font-size:14px}.no-results{text-align:center;padding:40px 20px;color:var(--text-light)}.no-results-icon{font-size:48px;margin-bottom:16px}.station-card{background:var(--bg-light);padding:20px;border-radius:12px;margin-bottom:16px;transition:all .2s ease;cursor:pointer;border:2px solid transparent}.station-card:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:var(--costco-blue)}.station-card.cheapest{border:2px solid var(--success);background:#f0fff4}.cheapest-badge{display:inline-block;background:var(--success);color:var(--white);padding:4px 12px;border-radius:20px;font-size:12px;font-weight:600;margin-bottom:8px}.station-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:12px}.station-name{font-size:18px;font-weight:700;color:var(--text-dark);flex:1}.station-price{font-size:28px;font-weight:700;color:var(--costco-red);white-space:nowrap;margin-left:12px}.price-label{font-size:14px;color:var(--text-light);font-weight:400}.station-details{color:var(--text-light);font-size:14px;line-height:1.6}.station-address{margin-bottom:8px}.station-distance{font-weight:600;color:var(--costco-blue)}.savings-container{margin-top:16px;padding-top:16px;border-top:1px dashed #ccc}.savings-title{font-size:14px;font-weight:600;color:var(--success);margin-bottom:8px}.savings-grid{display:flex;gap:16px}.savings-item{flex:1;background:var(--white);padding:8px 12px;border-radius:8px;border:1px solid #e0e0e0;display:flex;flex-direction:column}.savings-label{font-size:11px;color:var(--text-light);text-transform:uppercase;letter-spacing:.5px}.savings-amount{font-size:18px;font-weight:700;color:var(--success)}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000000b3;display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.modal-content{background:var(--white);padding:32px;border-radius:20px;max-width:450px;width:100%;text-align:center;box-shadow:0 10px 40px #0000004d;animation:modalIn .3s ease-out}@keyframes modalIn{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.modal-content h2{color:var(--costco-blue);margin-bottom:16px;font-size:24px}.modal-content p{color:var(--text-light);line-height:1.6;margin-bottom:24px}.modal-venmo-link{display:block;background:#008cff;color:#fff;padding:16px;border-radius:50px;text-decoration:none;font-weight:700;font-size:18px;margin-bottom:20px;transition:all .2s}.modal-venmo-link:hover{background:#0074d4;transform:scale(1.02)}.modal-close-btn{background:none;border:none;color:#888;text-decoration:underline;font-size:14px;cursor:pointer}.modal-close-btn:hover{color:var(--text-dark)}@media (max-width: 480px){.app{padding:12px}.header h1{font-size:24px}.search-section,.results-section{padding:20px}.radius-buttons{flex-direction:column}.radius-btn{width:100%}.station-price{font-size:24px}.savings-grid{flex-direction:column;gap:8px}}@media (prefers-reduced-motion: reduce){*{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}button:focus,.radius-btn:focus{outline:3px solid var(--costco-blue);outline-offset:2px}.support-card{background:linear-gradient(135deg,var(--costco-blue) 0%,#0066cc 100%);padding:32px 24px;border-radius:16px;box-shadow:var(--shadow-lg);margin-top:24px;text-align:center;color:var(--white)}.support-icon{font-size:48px;margin-bottom:12px;animation:bounce 2s infinite}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.support-card h3{font-size:22px;font-weight:700;margin-bottom:8px;color:var(--white)}.support-card p{font-size:15px;margin-bottom:20px;color:#ffffffe6}.support-button{display:inline-block;background:var(--white);color:var(--costco-blue);padding:14px 32px;border-radius:50px;font-size:16px;font-weight:700;text-decoration:none;transition:all .3s ease;box-shadow:0 4px 12px #0003}.support-button:hover{transform:translateY(-2px);box-shadow:0 6px 20px #0000004d;background:#f0f0f0}.disclaimer{background:var(--white);padding:20px 24px;border-radius:16px;box-shadow:var(--shadow-lg);margin-top:24px;text-align:center}.disclaimer p{font-size:12px;line-height:1.6;color:var(--text-light);margin:0}.disclaimer strong{color:var(--text-dark);font-weight:600}