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svg{stroke:var(--color-text)}.nav-link:active{transform:scale(.95)}.nav-link.active{background-color:var(--color-primary-light);color:var(--color-primary-dark)}.nav-link.active svg{stroke:var(--color-primary-dark)}.nav-link span{display:none}.toolbar-right{display:flex;align-items:center;gap:var(--spacing-sm);flex-shrink:0}.user-info{display:none}.user-greeting{font-size:var(--text-sm);font-weight:600;color:var(--color-text)}.user-email{font-size:var(--text-xs);color:var(--color-text-muted)}.logout-button{display:inline-flex;align-items:center;justify-content:center;gap:var(--spacing-xs);padding:var(--spacing-xs);font-size:var(--text-sm);font-weight:500;color:var(--color-text-secondary);border:1px solid var(--color-border);border-radius:var(--radius-md);background-color:var(--color-bg-white);transition:all 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p{font-size:var(--text-sm);color:var(--color-text-secondary);margin-bottom:0}.tech-list{list-style:none;padding:0;margin:var(--spacing-md) 0}.tech-list li{padding:var(--spacing-sm) 0;padding-left:var(--spacing-lg);position:relative;color:var(--color-text-secondary)}.tech-list li:before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:8px;height:8px;background:var(--color-primary);border-radius:50%}.tech-list li strong{color:var(--color-text)}.about-cta{text-align:center;background:linear-gradient(135deg,var(--color-primary-light) 0%,var(--color-bg-white) 100%)}.about-cta h2{color:var(--color-primary-dark)}@media(min-width:640px){.about-page{padding:0}.about-hero{margin-bottom:var(--spacing-2xl)}.about-hero h1{font-size:var(--text-3xl)}.about-subtitle{font-size:var(--text-lg)}.about-section{padding:var(--spacing-xl);margin-bottom:var(--spacing-xl)}.value-grid{grid-template-columns:repeat(2,1fr);gap:var(--spacing-lg);margin-top:var(--spacing-lg)}.value-card{padding:var(--spacing-lg)}}.how-it-works-page{max-width:800px;margin:0 auto;padding:0 var(--spacing-md)}.hiw-hero{text-align:center;margin-bottom:var(--spacing-xl)}.hiw-hero h1{font-size:var(--text-2xl);font-weight:700;color:var(--color-text);margin-bottom:var(--spacing-sm)}.hiw-subtitle{font-size:var(--text-base);color:var(--color-text-secondary);line-height:1.5}.steps-section{margin-bottom:var(--spacing-xl)}.step{display:flex;flex-direction:column;align-items:flex-start;gap:var(--spacing-sm);margin-bottom:var(--spacing-lg)}.step-number{flex-shrink:0;width:40px;height:40px;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-dark) 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pre{font-family:var(--font-mono);font-size:var(--text-xs);color:var(--color-text);white-space:pre-wrap;word-wrap:break-word;line-height:1.6;margin:0}.feature-list{list-style:none;padding:0;margin:0}.feature-list li{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-xs) 0;color:var(--color-text-secondary);font-size:var(--text-sm)}.feature-list li svg{width:16px;height:16px;color:var(--color-success);flex-shrink:0}.settings-section{background:var(--color-bg-white);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--spacing-md);margin-bottom:var(--spacing-xl)}.settings-section h2{font-size:var(--text-lg);font-weight:600;color:var(--color-text);margin-bottom:var(--spacing-sm)}.settings-section>p{color:var(--color-text-secondary);margin-bottom:var(--spacing-lg);font-size:var(--text-sm)}.provider-cards{display:grid;grid-template-columns:1fr;gap:var(--spacing-md)}.provider-card{background:var(--color-bg-alt);border-radius:var(--radius-md);padding:var(--spacing-md);position:relative}.provider-card h3{font-size:var(--text-base);font-weight:600;color:var(--color-text);margin-bottom:var(--spacing-sm)}.provider-card p,.provider-card ol{font-size:var(--text-sm);color:var(--color-text-secondary);margin:0}.provider-card ol{padding-left:var(--spacing-lg);margin-top:var(--spacing-sm)}.provider-card ol li{margin-bottom:var(--spacing-xs)}.provider-card a{color:var(--color-primary)}.provider-tag{display:inline-block;margin-top:var(--spacing-md);padding:var(--spacing-xs) var(--spacing-sm);font-size:var(--text-xs);font-weight:500;border-radius:var(--radius-sm);background:var(--color-border);color:var(--color-text-secondary)}.provider-tag.free{background:#dcfce7;color:#166534}.provider-tag.recommended{background:var(--color-primary-light);color:var(--color-primary-dark)}.tips-section{background:var(--color-bg-white);border:1px solid var(--color-border);border-radius:var(--radius-lg);padding:var(--spacing-md)}.tips-section h2{font-size:var(--text-lg);font-weight:600;color:var(--color-text);margin-bottom:var(--spacing-md)}.tips-grid{display:grid;grid-template-columns:1fr;gap:var(--spacing-md)}.tip{display:flex;gap:var(--spacing-md)}.tip-icon{flex-shrink:0;width:36px;height:36px;display:flex;align-items:center;justify-content:center;background:var(--color-primary-light);border-radius:var(--radius-md)}.tip-icon svg{width:18px;height:18px;color:var(--color-primary)}.tip h4{font-size:var(--text-sm);font-weight:600;color:var(--color-text);margin-bottom:var(--spacing-xs)}.tip p{font-size:var(--text-sm);color:var(--color-text-secondary);margin:0}@media(min-width:640px){.how-it-works-page{padding:0}.hiw-hero{margin-bottom:var(--spacing-2xl)}.hiw-hero h1{font-size:var(--text-3xl)}.hiw-subtitle{font-size:var(--text-lg)}.steps-section{margin-bottom:var(--spacing-2xl)}.step{flex-direction:row;gap:var(--spacing-lg);margin-bottom:var(--spacing-xl)}.step-number{width:48px;height:48px;font-size:var(--text-xl)}.step-content{padding:var(--spacing-xl)}.step-content h2{font-size:var(--text-xl)}.step-content p{font-size:var(--text-base)}.settings-section{padding:var(--spacing-xl);margin-bottom:var(--spacing-2xl)}.settings-section h2{font-size:var(--text-xl)}.settings-section>p{font-size:var(--text-base)}.provider-card{padding:var(--spacing-lg)}.tips-section{padding:var(--spacing-xl)}.tips-section h2{font-size:var(--text-xl);margin-bottom:var(--spacing-lg)}.tips-grid{grid-template-columns:repeat(2,1fr);gap:var(--spacing-lg)}}@media(min-width:768px){.provider-cards{grid-template-columns:repeat(3,1fr)}}.demo-page{min-height:100vh;min-height:100dvh;background:var(--color-bg);display:flex;flex-direction:column}.demo-header{display:flex;align-items:center;justify-content:space-between;padding:var(--spacing-sm) var(--spacing-md);padding-top:calc(var(--spacing-sm) + env(safe-area-inset-top));background:var(--color-bg-white);border-bottom:1px solid var(--color-border);position:sticky;top:0;z-index:10}.back-link{display:inline-flex;align-items:center;gap:var(--spacing-xs);color:var(--color-text-secondary);font-size:var(--text-sm);font-weight:500;text-decoration:none;transition:color var(--transition-fast);padding:var(--spacing-xs);margin:calc(-1 * var(--spacing-xs));border-radius:var(--radius-md);-webkit-tap-highlight-color:transparent;min-height:44px}.back-link:hover{color:var(--color-text);text-decoration:none}.back-link:active{background:var(--color-bg-alt)}.back-link svg{width:18px;height:18px;flex-shrink:0}.demo-badge{padding:var(--spacing-xs) var(--spacing-sm);background:var(--color-warning);color:#92400e;font-size:10px;font-weight:600;border-radius:var(--radius-md);text-transform:uppercase;letter-spacing:.5px}.demo-content{flex:1;max-width:1000px;margin:0 auto;padding:var(--spacing-md);width:100%}.demo-intro{text-align:center;margin-bottom:var(--spacing-lg)}.demo-intro h1{font-size:var(--text-xl);font-weight:700;color:var(--color-text);margin-bottom:var(--spacing-xs)}.demo-intro p{font-size:var(--text-sm);color:var(--color-text-secondary);max-width:500px;margin:0 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auto;padding-left:var(--spacing-md);padding-right:var(--spacing-md)}@media(min-width:640px){.container{padding-left:var(--spacing-lg);padding-right:var(--spacing-lg)}}.hide-mobile{display:none}@media(min-width:768px){.hide-mobile{display:block}.hide-desktop{display:none}}.tap-target{min-height:44px;min-width:44px;display:inline-flex;align-items:center;justify-content:center}.no-select{-webkit-user-select:none;user-select:none;-webkit-tap-highlight-color:transparent}.text-responsive{font-size:clamp(var(--text-sm),4vw,var(--text-base))}.heading-responsive{font-size:clamp(var(--text-xl),5vw,var(--text-3xl))}.app{min-height:100vh;display:flex;flex-direction:column}.loading-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;background-color:var(--color-bg)}.loading-spinner{width:48px;height:48px;border:3px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.main-content{flex:1;padding:var(--spacing-xl) var(--spacing-lg)}.container{max-width:var(--container-max);margin:0 auto;display:flex;flex-direction:column;gap:var(--spacing-xl)}@media(max-width:640px){.main-content{padding:var(--spacing-lg) var(--spacing-md)}.input-actions{flex-direction:column;align-items:stretch}.keyboard-hint{display:none}.generate-button{justify-content:center}.output-header{flex-direction:column;gap:var(--spacing-sm);align-items:stretch}.timeline-output .copy-button{justify-content:center}.privacy-notice{flex-direction:column;text-align:center}}