.step-container{display:flex;flex-direction:column;gap:1.5rem;animation:fadeIn .3s ease-in}@keyframes fadeIn{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.step-title{font-size:1.5rem;font-weight:600;color:#333;margin-bottom:.5rem}.step-subtitle{font-size:.95rem;color:#666;margin-bottom:1rem}.button-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:.75rem}.selection-button{padding:1rem;font-size:1rem;border:2px solid #e0e0e0;background:#fff;border-radius:12px;cursor:pointer;transition:all .2s;font-weight:500}.selection-button:hover{border-color:#667eea;background:#f0f0ff}.selection-button.selected{border-color:#667eea;background:#667eea;color:#fff}.custom-input-container{display:flex;gap:.5rem;margin-top:.5rem}.custom-input{flex:1;padding:.75rem;border:2px solid #e0e0e0;border-radius:8px;font-size:1rem}.add-button{padding:.75rem 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.75rem;background:#fff;border-radius:20px;font-size:.9rem}.remove-button{background:none;border:none;font-size:1.2rem;color:#999;cursor:pointer;padding:0;width:20px;height:20px;display:flex;align-items:center;justify-content:center;line-height:1}.remove-button:hover{color:#e74c3c}.usage-selection-list{display:flex;flex-direction:column;gap:1.5rem}.usage-item{background:#f8f9fa;padding:1.25rem;border-radius:12px}.usage-item-title{font-size:1.1rem;font-weight:600;margin-bottom:.75rem;color:#333}.no-usage-message{color:#999;font-size:.9rem;font-style:italic}.quantity-list{display:flex;flex-direction:column;gap:1rem}.quantity-item{background:#f8f9fa;padding:1.25rem;border-radius:12px}.quantity-item-header{display:flex;align-items:center;gap:.5rem;margin-bottom:1rem}.quantity-item-header h3{font-size:1.1rem;font-weight:600}.usage-badge{background:#667eea;color:#fff;padding:.25rem 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.2s}.quantity-button:hover{background:#667eea;color:#fff}.quantity-display{display:flex;flex-direction:column;align-items:center;min-width:100px}.quantity-value{font-size:1.75rem;font-weight:600;color:#333}.quantity-unit{font-size:.9rem;color:#666}.summary-list{display:flex;flex-direction:column;gap:.75rem;margin-bottom:1.5rem}.summary-item{display:flex;justify-content:space-between;align-items:center;padding:1rem;background:#f8f9fa;border-radius:12px}.summary-item-main{display:flex;align-items:center;gap:.5rem}.summary-item-main h3,.summary-item-main 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#667eea66}.primary-button:disabled{opacity:.5;cursor:not-allowed}.secondary-button{flex:1;padding:1rem;background:#fff;color:#667eea;border:2px solid #667eea;border-radius:12px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s}.secondary-button:hover{background:#f0f0ff}@media (max-width: 480px){.button-grid{grid-template-columns:1fr}.step-title{font-size:1.25rem}.quantity-selector{gap:1rem}.quantity-button{width:44px;height:44px;font-size:1.25rem}.quantity-value{font-size:1.5rem}.step-actions{flex-direction:column}.step-actions .secondary-button,.step-actions .primary-button{width:100%}}.app{max-width:600px;margin:0 auto;background:#fff;min-height:100vh;display:flex;flex-direction:column}.app-header{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;padding:1.5rem;box-shadow:0 2px 8px #0000001a;position:relative}.header-content{display:flex;justify-content:space-between;align-items:center;max-width:100%}.header-left{flex:1;text-align:left}.app-header h1{font-size:1.5rem;margin:0 0 .5rem}.step-indicator{font-size:.9rem;opacity:.9;margin:0}.settings-button{background:transparent;border:none;color:#fff;cursor:pointer;padding:8px;display:flex;align-items:center;justify-content:center;border-radius:8px;transition:background-color .2s ease;margin-left:1rem}.settings-button:hover{background-color:#ffffff1a}.settings-button:active{background-color:#fff3}.settings-button svg{width:24px;height:24px}.password-modal{position:fixed;top:0;left:0;width:100vw;height:100vh;background:#00000080;display:flex;align-items:center;justify-content:center;z-index:2000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}.password-box{background:#fff;border-radius:20px;padding:2.5rem;max-width:400px;width:90%;box-shadow:0 10px 40px #0003;animation:slideUp .3s ease-out}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.password-header{display:flex;flex-direction:column;align-items:center;margin-bottom:1.5rem}.password-header svg{color:#667eea;margin-bottom:.75rem}.password-header h3{margin:0;font-size:1.5rem;font-weight:700;color:#333}.password-subtitle{text-align:center;color:#666;font-size:.95rem;margin:0 0 1.5rem}.password-input-wrapper{margin-bottom:1.5rem}.password-input{width:100%;padding:14px 18px;border:2px solid #e0e0e0;border-radius:12px;font-size:1rem;transition:all .3s ease;box-sizing:border-box;background:#fafafa}.password-input:focus{outline:none;border-color:#667eea;background:#fff;box-shadow:0 0 0 3px #667eea1a}.password-input.error{border-color:#f44336;background:#fff5f5}.password-input.error:focus{border-color:#f44336;box-shadow:0 0 0 3px #f443361a}.password-error{color:#f44336;font-size:.875rem;margin-top:8px;display:flex;align-items:center;gap:6px}.password-error:before{content:"⚠";font-size:1rem}.password-actions{display:flex;gap:12px}.password-cancel-button,.password-submit-button{flex:1;padding:14px 24px;border:none;border-radius:12px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s ease}.password-cancel-button{background:#f5f5f5;color:#666}.password-cancel-button:hover{background:#e8e8e8}.password-submit-button{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.password-submit-button:hover{transform:translateY(-1px);box-shadow:0 4px 12px #667eea66}.password-submit-button:active{transform:translateY(0)}.app-main{flex:1;padding:1.5rem;overflow-y:auto}@media (max-width: 480px){.app-header{padding:1.25rem 1rem}.app-header h1{font-size:1.25rem}.step-indicator{font-size:.85rem}.settings-button{padding:6px;margin-left:.5rem}.settings-button svg{width:20px;height:20px}.app-main{padding:1rem}.password-box{padding:2rem 1.5rem;margin:1rem}.password-header h3{font-size:1.25rem}.password-subtitle{font-size:.9rem}}*{margin:0;padding:0;box-sizing:border-box}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-color:#f5f5f5;color:#333}#root{min-height:100vh}