:root{font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.6;font-weight:400;color-scheme:light dark;--bg-primary: #ffffff;--bg-secondary: #f8fafc;--card-bg: #ffffff;--content-bg: #f8fafc;--item-bg: #f1f5f9;--input-bg: #ffffff;--button-secondary-bg: #f1f5f9;--button-secondary-hover: #e2e8f0;--text-primary: #1e293b;--text-secondary: #64748b;--border-color: #e2e8f0;--accent-color: #667eea;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .1);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .1);font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-color-scheme: dark){:root{--bg-primary: #0f172a;--bg-secondary: #1e293b;--card-bg: #1e293b;--content-bg: #334155;--item-bg: #334155;--input-bg: #334155;--button-secondary-bg: #334155;--button-secondary-hover: #475569;--text-primary: #f1f5f9;--text-secondary: #cbd5e1;--border-color: #475569;--accent-color: #818cf8}}a{font-weight:500;color:#646cff;text-decoration:inherit}a:hover{color:#535bf2}body{margin:0;background:var(--bg-primary);color:var(--text-primary);min-width:320px;min-height:100vh;transition:background-color .3s ease,color .3s ease}h1{font-size:3.2em;line-height:1.1}button{border-radius:8px;border:1px solid transparent;padding:.6em 1.2em;font-size:1em;font-weight:500;font-family:inherit;background-color:#1a1a1a;cursor:pointer;transition:border-color .25s}button:hover{border-color:#646cff}button:focus,button:focus-visible{outline:4px auto -webkit-focus-ring-color}@media (prefers-color-scheme: light){:root{color:#213547;background-color:#fff}a:hover{color:#747bff}button{background-color:#f9f9f9}}.auth-container{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:2rem;background:linear-gradient(135deg,var(--bg-primary) 0%,var(--bg-secondary) 100%)}.auth-content{background:var(--card-bg);border-radius:24px;padding:3rem;box-shadow:0 20px 40px -12px #0000001a;border:1px solid var(--border-color);max-width:480px;width:100%;text-align:center}.auth-header{margin-bottom:2.5rem}.auth-title{font-size:3rem;font-weight:700;margin:0 0 1rem;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;color:transparent}.auth-subtitle{color:var(--text-secondary);font-size:1.1rem;margin:0;line-height:1.5}.login-title{font-size:1.5rem;font-weight:600;color:var(--text-primary);margin:0}.auth-features{display:grid;gap:1.5rem;margin:2.5rem 0;text-align:left}.feature-item{display:flex;align-items:center;gap:1rem;padding:1.5rem;background:var(--item-bg);border-radius:16px;border:1px solid var(--border-color);transition:all .2s ease}.feature-item:hover{transform:translateY(-2px);box-shadow:0 4px 12px #667eea1a}.feature-icon{font-size:2rem;flex-shrink:0}.feature-text{display:flex;flex-direction:column;gap:.25rem}.feature-text strong{color:var(--text-primary);font-weight:600;font-size:1rem}.feature-text span{color:var(--text-secondary);font-size:.9rem;line-height:1.4}.auth-actions{display:grid;gap:1rem;margin:2.5rem 0}.auth-button{padding:1rem 2rem;border-radius:16px;font-size:1rem;font-weight:600;cursor:pointer;transition:all .2s ease;border:none;text-align:center;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;min-height:48px}.auth-button.primary{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.auth-button.primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 8px 25px #667eea4d}.auth-button.secondary{background:var(--button-secondary-bg);color:var(--text-primary);border:2px solid var(--border-color)}.auth-button.secondary:hover{background:var(--button-secondary-hover);border-color:var(--accent-color);transform:translateY(-1px)}.auth-button:disabled{opacity:.6;cursor:not-allowed;transform:none}.auth-button.full-width{width:100%}.guest-note{margin-top:2rem;padding:1rem;background:#fbbf241a;border:1px solid rgba(251,191,36,.2);border-radius:12px;text-align:center}.guest-note p{margin:0;color:var(--text-secondary);font-size:.9rem;line-height:1.4}.guest-note strong{color:var(--text-primary)}.login-form{display:grid;gap:1.5rem;text-align:left}.form-group{display:grid;gap:.5rem}.form-group label{font-weight:600;color:var(--text-primary);font-size:.9rem}.form-group input{padding:1rem 1.25rem;border:2px solid var(--border-color);border-radius:12px;background:var(--input-bg);color:var(--text-primary);font-size:1rem;transition:all .2s ease}.form-group input:focus{outline:none;border-color:var(--accent-color);box-shadow:0 0 0 4px #667eea1a}.form-group input::placeholder{color:var(--text-secondary)}.error-message{padding:1rem;background:#ef44441a;border:1px solid rgba(239,68,68,.2);border-radius:12px;color:#dc2626;font-size:.9rem;text-align:center;font-weight:500}.auth-switch{text-align:center;margin:1rem 0}.text-button{background:none;border:none;color:var(--accent-color);cursor:pointer;font-size:.9rem;font-weight:500;text-decoration:underline;padding:.5rem;transition:all .2s ease}.text-button:hover{color:var(--text-primary);transform:none}.auth-divider{display:flex;align-items:center;text-align:center;margin:1.5rem 0}.auth-divider:before,.auth-divider:after{content:"";flex:1;height:1px;background:var(--border-color)}.auth-divider span{padding:0 1rem;color:var(--text-secondary);font-size:.9rem;font-weight:500}.back-button{background:none;border:none;color:var(--text-secondary);cursor:pointer;font-size:.9rem;padding:.5rem;margin-top:1rem;transition:all .2s ease;text-align:center;justify-self:center;text-decoration:none;display:inline-block}.back-button:hover{color:var(--text-primary);transform:none}@media (max-width: 640px){.auth-container{padding:1rem}.auth-content{padding:2rem;border-radius:16px}.auth-title{font-size:2.5rem}.feature-item{padding:1rem;flex-direction:column;text-align:center;gap:.75rem}.feature-text{align-items:center;text-align:center}}.header-content{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}.header-actions{display:flex;align-items:center;gap:1rem;flex-wrap:wrap}.header-button{padding:.75rem 1.5rem;border-radius:12px;font-size:.9rem;font-weight:600;cursor:pointer;transition:all .2s ease;border:none;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;white-space:nowrap}.header-button.secondary{background:var(--button-secondary-bg);color:var(--text-primary);border:2px solid 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#00000026}.recipe-card-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:1rem;gap:1rem}.recipe-card-header h3{margin:0;color:var(--text-primary);font-size:1.2rem;font-weight:600;line-height:1.3}.recipe-card-actions{display:flex;flex-direction:column;align-items:flex-end;gap:.5rem;flex-shrink:0}.recipe-date{font-size:.8rem;color:var(--text-secondary);white-space:nowrap}.delete-recipe-button{background:#ef44441a;border:1px solid rgba(239,68,68,.2);color:#dc2626;padding:.4rem;border-radius:8px;cursor:pointer;font-size:.9rem;transition:all .2s ease;display:flex;align-items:center;justify-content:center}.delete-recipe-button:hover{background:#ef444426;transform:translateY(-1px)}.recipe-card-content{color:var(--text-primary);line-height:1.6;max-height:300px;overflow-y:auto;padding-right:.5rem}.recipe-card-content h1,.recipe-card-content h2,.recipe-card-content h3{margin-top:1rem;margin-bottom:.75rem}.recipe-card-content h1:first-child,.recipe-card-content h2:first-child,.recipe-card-content h3:first-child{margin-top:0}.recipe-card-content ul,.recipe-card-content ol{padding-left:1.25rem;margin:.75rem 0}.recipe-card-content li{margin-bottom:.25rem}.recipe-card-content::-webkit-scrollbar{width:4px}.recipe-card-content::-webkit-scrollbar-track{background:var(--border-color);border-radius:2px}.recipe-card-content::-webkit-scrollbar-thumb{background:var(--accent-color);border-radius:2px}.recipe-card-content::-webkit-scrollbar-thumb:hover{background:var(--text-secondary)}@media (max-width: 768px){.header-content{flex-direction:column;align-items:stretch;text-align:center}.header-actions{justify-content:center;flex-wrap:wrap}.user-info{justify-content:center}.recipe-result-header{flex-direction:column;align-items:stretch;text-align:center}.recipe-grid{grid-template-columns:1fr;gap:1.5rem}.recipe-card{padding:1rem}.recipe-card-header{flex-direction:column;align-items:stretch;gap:.75rem}.recipe-card-actions{flex-direction:row;align-items:center;justify-content:space-between}}@media (max-width: 640px){.empty-history{padding:3rem 1rem}.empty-icon{font-size:3rem}}.dashboard-landing{max-width:800px;margin:0 auto;padding:2rem 1rem}.dashboard-welcome{text-align:center;margin-bottom:3rem}.dashboard-welcome h2{font-size:2rem;color:var(--text-primary);margin-bottom:.5rem;margin-top:0}.dashboard-welcome p{font-size:1.1rem;color:var(--text-secondary)}.dashboard-options{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:2rem;margin-bottom:3rem}.dashboard-option-card{background:var(--card-bg);border:2px solid var(--border-color);border-radius:16px;padding:2rem;text-align:center;transition:all .3s ease;cursor:pointer}.dashboard-option-card:hover{border-color:var(--accent-color);transform:translateY(-2px);box-shadow:0 8px 25px #0000001a}.option-icon{font-size:3rem;margin-bottom:1rem;display:block}.dashboard-option-card h3{font-size:1.5rem;color:var(--text-primary);margin-bottom:1rem}.dashboard-option-card p{color:var(--text-secondary);margin-bottom:2rem;line-height:1.5}.option-button{width:100%;margin:0}.dashboard-tip{background:var(--accent-bg-light);border:1px solid var(--accent-color-light);border-radius:12px;padding:1.5rem;text-align:center;margin-top:2rem}.tip-icon{font-size:2rem;margin-bottom:.5rem;display:block}.dashboard-tip p{margin:0;color:var(--text-primary)}.recipes-summary{text-align:center;margin-bottom:3rem}.recipes-summary h2{font-size:1.8rem;color:var(--text-primary);margin-bottom:.5rem}.recipes-summary p{color:var(--text-secondary);font-size:1.1rem}.recipes-footer{text-align:center;margin-top:3rem;padding-top:2rem;border-top:1px solid var(--border-color)}@media (max-width: 768px){.dashboard-options{grid-template-columns:1fr;gap:1.5rem}.dashboard-option-card{padding:1.5rem}.option-icon{font-size:2.5rem}.dashboard-welcome h2{font-size:1.6rem}}.app-container{max-width:800px;margin:0 auto;padding:2rem;min-height:100vh}.app-title{text-align:center;margin-bottom:2rem;margin-top:2rem;color:var(--text-primary);font-size:2.5rem;font-weight:700;background:linear-gradient(135deg,#667eea,#764ba2);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}.instructions-section{background:var(--card-bg);border-radius:16px;padding:1.5rem;margin-bottom:2rem;box-shadow:0 2px 4px -1px #0000001a;border:1px solid var(--border-color)}.instructions-section h2{margin:0 0 1.5rem;color:var(--text-primary);font-size:1.25rem;font-weight:600;text-align:center}.instruction-steps{display:grid;gap:1rem}.instruction-item{display:flex;align-items:center;gap:1rem;padding:1rem;background:var(--item-bg);border-radius:12px;border:1px solid var(--border-color)}.step-number{display:flex;align-items:center;justify-content:center;width:2rem;height:2rem;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border-radius:50%;font-weight:600;font-size:.9rem;flex-shrink:0}.step-content{color:var(--text-primary);line-height:1.5}.step-content strong{color:var(--accent-color);font-weight:600}.ingredient.column{background:var(--card-bg);border-radius:16px;padding:2rem;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f;border:1px solid var(--border-color);transition:box-shadow .3s ease}.ingredient.column:hover{box-shadow:0 10px 25px -3px #0000001a,0 4px 6px -2px #0000000d}.additional-ingredients{margin-bottom:2rem;background:var(--item-bg);padding:1.5rem;border-radius:12px;border:2px solid var(--border-color);transition:all .2s ease}.additional-ingredients:hover{border-color:var(--accent-color);transform:translateY(-1px);box-shadow:0 4px 12px #667eea1a}.additional-ingredients-label{display:block;cursor:pointer}.label-text{display:block;font-weight:600;color:var(--text-primary);margin-bottom:.75rem;font-size:1.1rem}.select-wrapper{position:relative;display:block}.additional-ingredients select{width:100%;padding:1rem 3rem 1rem 1rem;border:2px solid var(--border-color);border-radius:12px;background:var(--input-bg);color:var(--text-primary);font-size:1rem;font-weight:500;transition:all .2s ease;cursor:pointer;appearance:none;-webkit-appearance:none;-moz-appearance:none}.additional-ingredients select:hover{border-color:var(--accent-color);box-shadow:0 0 0 3px #667eea1a}.additional-ingredients select:focus{outline:none;border-color:var(--accent-color);box-shadow:0 0 0 4px #667eea26}.select-arrow{position:absolute;right:1rem;top:50%;transform:translateY(-50%);color:var(--accent-color);font-size:.8rem;pointer-events:none;font-weight:700}.setting-description{margin-top:.75rem;color:var(--text-secondary);font-size:.9rem;line-height:1.4;font-style:italic}.ingredient-input-simple{display:flex;gap:1rem;margin-bottom:2rem;align-items:center}.ingredient-input-simple input{flex:1;padding:1rem 1.25rem;border:2px solid var(--border-color);border-radius:16px;background:var(--input-bg);color:var(--text-primary);font-size:1rem;transition:all .2s ease}.ingredient-input-simple input:focus{outline:none;border-color:var(--accent-color);box-shadow:0 0 0 4px #667eea1a}.ingredient-input-simple input::placeholder{color:var(--text-secondary)}.ingredient-input-simple button{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;padding:1rem 2rem;border-radius:16px;font-weight:600;cursor:pointer;transition:all .2s ease;text-transform:uppercase;letter-spacing:.5px;white-space:nowrap}.ingredient-input-simple button:hover{transform:translateY(-1px);box-shadow:0 6px 20px #667eea4d}@media (max-width: 768px){.ingredient-input-simple{flex-direction:column;align-items:stretch}.ingredient-input-simple button{padding:.75rem 1.5rem}}.ingredient-list{margin-bottom:2rem}.ingredient-list ul{list-style:none;padding:0;margin:0;display:grid;gap:.75rem}.ingredient-list li{background:var(--item-bg);padding:1rem 1.25rem;border-radius:12px;display:flex;justify-content:space-between;align-items:center;border:1px solid var(--border-color);transition:all .2s ease}.ingredient-list li:hover{transform:translateY(-1px);box-shadow:0 2px 8px #0000001a}.ingredient-info{font-weight:500;color:var(--text-primary)}.ingredient-actions{display:flex;gap:.5rem}.ingredient-actions button{padding:.5rem 1rem;border:1px solid var(--border-color);border-radius:8px;background:var(--button-secondary-bg);color:var(--text-primary);font-size:.875rem;font-weight:500;cursor:pointer;transition:all .2s ease}.ingredient-actions button:hover{background:var(--button-secondary-hover);transform:translateY(-1px)}.ingredient-actions button:last-child{background:#ef44441a;color:#dc2626;border-color:#ef444433}.ingredient-actions button:last-child:hover{background:#ef444426}.empty-state{text-align:center;padding:2rem;color:var(--text-secondary);font-style:italic}.submit{display:flex;justify-content:center}.submit button{background:linear-gradient(135deg,#10b981,#059669);color:#fff;border:none;padding:1rem 2rem;border-radius:12px;font-size:1.1rem;font-weight:600;cursor:pointer;transition:all .2s ease;text-transform:uppercase;letter-spacing:.5px;min-width:150px}.submit button:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 6px 20px #10b9814d}.submit button:disabled{opacity:.6;cursor:not-allowed;transform:none}.recipe-result{margin-top:2rem;background:var(--card-bg);border-radius:16px;padding:2rem;box-shadow:0 4px 6px -1px #0000001a,0 2px 4px -1px #0000000f;border:1px solid var(--border-color)}.recipe-result h2{margin-top:0;margin-bottom:1.5rem;color:var(--text-primary);font-size:1.5rem;font-weight:700;text-align:center}.recipe-content{background:var(--content-bg);padding:1.5rem;border-radius:12px;border:1px solid var(--border-color);line-height:1.7}.recipe-content h1{color:var(--text-primary);margin-bottom:1.5rem;font-size:1.8rem;text-align:center;border-bottom:2px solid var(--accent-color);padding-bottom:.5rem}.recipe-content h2{color:var(--accent-color);margin:2rem 0 1rem;font-size:1.3rem;font-weight:600}.recipe-content ul,.recipe-content ol{padding-left:1.5rem}.recipe-content li{margin-bottom:.5rem;color:var(--text-primary)}.recipe-content strong{color:var(--accent-color);font-weight:600}@media (max-width: 768px){.app-container{padding:1rem}.app-title{font-size:2rem}.instructions-section{padding:1rem}.instruction-item{padding:.75rem}.step-number{width:1.5rem;height:1.5rem;font-size:.8rem}.ingredient.column{padding:1.5rem}.additional-ingredients{padding:1rem}.ingredient-input-simple{flex-direction:column;align-items:stretch}.ingredient-input-simple button{padding:.75rem 1.5rem}.ingredient-list li{flex-direction:column;gap:1rem;text-align:center}.recipe-result{padding:1.5rem}}