:root{--primary-contrast:#0b151e;--secondary-contrast:#0b151e99;--background-gradient:linear-gradient(90deg,#ffca28,#f57c00);--background:#ffca28;--muted:rgba(194,137,3,.3);--surface:#e99e1d;--border:transparent;--top-gradient:#ffffff33;--bottom-gradient-top:#ffffff75;--bottom-gradient-bottom:transparent;--button:#0b151e}.dark-theme{--primary-contrast:#fff;--secondary-contrast:#ffffff99;--background-gradient:linear-gradient(90deg,#0b151e,#0b151e);--background:#0b151e;--muted:rgba(21,39,60,.6);--surface:#112031;--border:#ffffff20;--top-gradient:#1b72e833;--bottom-gradient-top:#1b72e8;--bottom-gradient-bottom:#1b72e850;--button:linear-gradient(90deg,#ffca28,#f57c00)}*{margin:0;font-family:Google Sans}html{background:var(--background)}body{color:var(--primary-contrast);background:var(--background-gradient);min-height:100dvh;display:flex;flex-direction:column;justify-content:center;align-items:center}.dots{pointer-events:none;height:100%;background-image:radial-gradient(circle at center,var(--muted) 2px,transparent 2px);background-size:30px 30px;background-position:12px 12px;-webkit-mask-image:linear-gradient(180deg,#000 0,transparent 50%);mask-image:linear-gradient(180deg,#000 0,transparent 50%)}.dots,.top-gradient{position:absolute;top:0;left:0;width:100%}.top-gradient{height:25vh;background:linear-gradient(180deg,transparent 0,var(--top-gradient) 50%);-webkit-clip-path:polygon(0 0,100% 0,100% 100%,0 calc(100% - 10vw));clip-path:polygon(0 0,100% 0,100% 100%,0 calc(100% - 10vw))}.bottom-gradient{position:fixed;bottom:0;width:90%;height:900px;margin-bottom:-550px;pointer-events:none;-webkit-user-select:none;-moz-user-select:none;user-select:none;--top:var(--bottom-gradient-top);--bottom:var(--bottom-gradient-bottom);--first:conic-gradient(from 90deg at 0% 50%,var(--top),var(--bottom));--second:conic-gradient(from 270deg at 100% 50%,var(--bottom),var(--top));-webkit-mask-image:radial-gradient(closest-side at 50% 50%,var(--background),transparent);mask-image:radial-gradient(closest-side at 50% 50%,var(--background),transparent);background-image:var(--first),var(--second);background-position-x:0,100%;background-position-y:100%,0;background-repeat:no-repeat;opacity:.4;transform:translateY(-200px) rotate(180deg) translateZ(0);transform-origin:center center}.header{position:absolute;top:4vh;left:0;right:0;display:flex;justify-content:space-between;align-items:center;padding:0 2rem;max-width:1400px;margin:0 auto;z-index:100}.header svg{padding:16px 25px}.nav-link{display:flex;align-items:center;padding:.6rem 1.2rem;color:hsla(0,0%,100%,.7);text-decoration:none;border-radius:10px;transition:all .3s ease;font-size:1rem;font-weight:500}.nav-link:hover{color:#fff;background:hsla(0,0%,100%,.1)}.nav-link.active{color:#fff;background:rgba(102,126,234,.3);border:1px solid rgba(102,126,234,.5)}.user-email{color:hsla(0,0%,100%,.7);font-size:.9rem;padding:.6rem 1rem;background:hsla(0,0%,100%,.05);border-radius:10px;border:1px solid hsla(0,0%,100%,.1)}.logout-btn{background:none;border:none;cursor:pointer}.logout-btn:hover{background:rgba(239,68,68,.2);border:1px solid rgba(239,68,68,.4)}.login-link{background:rgba(102,126,234,.2);border:1px solid rgba(102,126,234,.4)}.login-link:hover{background:rgba(102,126,234,.3);border-color:rgba(102,126,234,.6)}.heading{font-size:48px;font-weight:500;letter-spacing:-2%;text-align:center}.regenerate-button{color:var(--background);background:var(--button)}.back-button{position:fixed;top:32px;left:32px;color:var(--primary-contrast);background-color:var(--surface);display:flex;align-items:center;gap:6px;text-decoration:none;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.button{font-size:15px;line-height:1.3;font-weight:500;padding:11px 16px;border-radius:100px;border:none;cursor:pointer;transition:scale .2s,filter .2s}.button:hover{filter:brightness(1.1)}.button:active{scale:.97}.content{margin:120px 12px;justify-content:center;gap:80px}.content,.content header{display:flex;flex-direction:column;align-items:center}.content header{gap:32px}.content header h2{font-size:20px;font-weight:400}.data-container,.features{display:grid;grid-gap:10px;gap:10px}.features{text-wrap:balance}.data-container,.features{grid-template-columns:repeat(2,1fr)}.data-container{text-wrap:pretty}.card{flex-direction:column;padding:24px;gap:12px;max-width:360px}.card h2{font-size:24px;line-height:1.2;font-weight:500;letter-spacing:-2%}.card p{font-size:13px;line-height:1.5;color:var(--secondary-contrast);letter-spacing:-1%}.card p a,.link{color:var(--primary-contrast);text-decoration:underline;text-underline-offset:2px}.links-container{padding-top:24px;gap:24px}.links,.links-container{display:flex;flex-wrap:wrap}.links{gap:10px}.links a{padding:14px 15px;color:var(--primary-contrast);font-size:14px;font-weight:500;text-decoration:none;white-space:nowrap;justify-content:center;align-items:center;gap:4px}.card,.links a{position:relative;border-radius:24px;background:var(--surface);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);display:flex}.card:before,.links a:before{content:"";position:absolute;inset:0;border-radius:24px;padding:1px;background:linear-gradient(var(--border),transparent 30%);-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}.card:not(:first-child):after,.links a:not(:first-child):after{content:"";top:0;height:100%;background:var(--surface);position:absolute;pointer-events:none}.card:not(:first-child):after{width:10px;left:-10px;mask:url(/between-cards.svg) no-repeat center/contain;-webkit-mask:url(/between-cards.svg) no-repeat center/contain}.links a:not(:first-child):after{width:30px;left:calc(-20px);mask:url(/between-links.svg) no-repeat center/contain;-webkit-mask:url(/between-links.svg) no-repeat center/contain}@media only screen and (max-width:1023px){.heading{font-size:36px}.back-button{top:10px;left:10px}.data-container,.features{grid-template-columns:1fr}.card:after,.links a:after,.top-gradient{display:none}.bottom-gradient{width:150%;height:400px;margin-bottom:-450px}}.hero-icon{display:inline-block}.step-card{transition:all .3s ease;cursor:pointer;position:relative;overflow:hidden}.step-card:before{content:"";position:absolute;top:0;left:0;width:100%;height:100%;background:linear-gradient(135deg,rgba(99,102,241,.1),rgba(168,85,247,.1));opacity:0;transition:opacity .3s ease;z-index:0}.step-card:hover:before{opacity:1}.step-card:hover{transform:translateY(-10px) scale(1.02);box-shadow:0 20px 40px rgba(0,0,0,.3);border-color:rgba(99,102,241,.5)}.step-card>*{position:relative;z-index:1}.step-icon{display:inline-block;transition:all .3s ease}.step-card:hover .step-icon{transform:scale(1.2) rotate(5deg)}.step-card:first-child:hover{border-color:rgba(59,130,246,.6)}.step-card:nth-child(2):hover{border-color:rgba(168,85,247,.6)}.step-card:nth-child(3):hover{border-color:rgba(34,197,94,.6)}.feature-card{transition:all .3s ease;cursor:pointer}.feature-card:hover{transform:translateY(-5px);box-shadow:0 15px 30px rgba(0,0,0,.3);border-color:rgba(99,102,241,.4);background:hsla(0,0%,100%,.05)}.rotating-icon{display:inline-block;animation:rotate 3s linear infinite}@keyframes rotate{0%{transform:rotate(0deg)}to{transform:rotate(1turn)}}.pulse-icon{display:inline-block;animation:pulse 2s ease-in-out infinite}@keyframes pulse{0%,to{transform:scale(1);opacity:1}50%{transform:scale(1.1);opacity:.8}}.image-upload-container{width:100%;max-width:700px;margin:3rem auto}.upload-area{background:hsla(0,0%,100%,.03);border:2px dashed hsla(0,0%,100%,.2);border-radius:20px;padding:3rem 2rem;text-align:center;transition:all .3s ease;cursor:pointer}.upload-area:hover{background:hsla(0,0%,100%,.05);border-color:rgba(99,102,241,.5);transform:translateY(-2px)}.upload-area.dragging{background:rgba(99,102,241,.1);border-color:rgba(99,102,241,.8);transform:scale(1.02)}.upload-icon{font-size:4rem;margin-bottom:1rem;animation:float 3s ease-in-out infinite}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.upload-buttons{gap:1rem;flex-wrap:wrap}.upload-btn,.upload-buttons{display:flex;justify-content:center}.upload-btn{align-items:center;padding:1rem 2rem;font-size:1rem;font-weight:600;border:none;border-radius:12px;cursor:pointer;transition:all .3s ease;font-family:Google Sans;min-width:180px}.camera-btn{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.camera-btn:hover{transform:translateY(-2px);box-shadow:0 10px 25px rgba(102,126,234,.4)}.file-btn{background:linear-gradient(135deg,#f093fb,#f5576c);color:#fff}.file-btn:hover{transform:translateY(-2px);box-shadow:0 10px 25px rgba(245,87,108,.4)}.upload-btn:active{transform:translateY(0)}.preview-container{background:hsla(0,0%,100%,.03);border:1px solid hsla(0,0%,100%,.1);border-radius:20px;padding:2rem;animation:fadeIn .5s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.preview-header{justify-content:space-between;margin-bottom:1.5rem}.preview-header,.reset-btn{display:flex;align-items:center}.reset-btn{background:hsla(0,0%,100%,.1);border:1px solid hsla(0,0%,100%,.2);border-radius:50%;width:40px;height:40px;justify-content:center;cursor:pointer;transition:all .3s ease;font-size:1.2rem;color:#fff}.reset-btn:hover{background:rgba(255,87,108,.3);border-color:rgba(255,87,108,.5);transform:rotate(90deg)}.preview-image-wrapper{position:relative;overflow:hidden;margin-bottom:1.5rem;background:rgba(0,0,0,.3)}.preview-image,.preview-image-wrapper{width:100%;max-height:500px;border-radius:15px}.preview-image{height:auto;display:block;object-fit:contain}.analyze-btn{width:100%;padding:1.2rem;font-size:1.1rem;font-weight:600;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:12px;cursor:pointer;transition:all .3s ease;font-family:Google Sans;display:flex;align-items:center;justify-content:center}.analyze-btn:hover{transform:translateY(-2px);box-shadow:0 15px 35px rgba(102,126,234,.4)}.analyze-btn:active{transform:translateY(0)}@media (max-width:768px){.image-upload-container{margin:2rem auto}.upload-area{padding:2rem 1rem}.upload-buttons{flex-direction:column;width:100%}.upload-btn{width:100%}.preview-image,.preview-image-wrapper{max-height:350px}}.loading-container{width:100%;max-width:600px;margin:3rem auto;padding:4rem 2rem;background:hsla(0,0%,100%,.03);border:1px solid hsla(0,0%,100%,.1);border-radius:20px;text-align:center}.loading-spinner{position:relative;width:120px;height:120px;margin:0 auto}.spinner-ring{position:absolute;width:100%;height:100%;border:4px solid rgba(102,126,234,.2);border-top-color:#667eea;border-radius:50%;animation:spin 1s linear infinite}.spinner-icon{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);font-size:3rem;animation:pulse 2s ease-in-out infinite}@keyframes spin{to{transform:rotate(1turn)}}.loading-steps{display:flex;justify-content:center;gap:2rem;margin-top:2rem;flex-wrap:wrap}.loading-step{display:flex;align-items:center;gap:.5rem;color:#666;font-size:.9rem;transition:all .3s ease}.loading-step.active{color:#667eea}.step-dot{width:10px;height:10px;background:#666;border-radius:50%;transition:all .3s ease}.loading-step.active .step-dot{background:#667eea;box-shadow:0 0 10px rgba(102,126,234,.5);animation:pulse 1.5s ease-in-out infinite}.analysis-result-container{width:100%;max-width:900px;margin:3rem auto;animation:fadeIn .5s ease}.result-header{text-align:center;margin-bottom:2rem}.result-content{display:grid;grid-template-columns:1fr 2fr;grid-gap:2rem;gap:2rem;margin-bottom:2rem}.result-image-section{position:relative}.result-thumbnail{width:100%;height:auto;max-height:400px;object-fit:cover;border-radius:15px;border:2px solid hsla(0,0%,100%,.1)}.classification-card{background:hsla(0,0%,100%,.03);border:2px solid hsla(0,0%,100%,.1);border-radius:20px;padding:2rem;transition:all .3s ease}.category-header{text-align:center;padding-bottom:1.5rem;border-bottom:1px solid hsla(0,0%,100%,.1);margin-bottom:1.5rem}.category-icon{display:inline-block;animation:bounce 2s ease-in-out infinite}@keyframes bounce{0%,to{transform:translateY(0)}50%{transform:translateY(-10px)}}.confidence-badge{display:inline-block;background:rgba(102,126,234,.2);color:#667eea;padding:.5rem 1rem;border-radius:20px;font-size:.9rem;font-weight:600;margin-top:1rem}.guide-section,.tips-section{margin-top:1.5rem}.guide-title{font-size:1.2rem;margin-bottom:1rem;color:#fff}.guide-list,.tips-list{list-style:none;padding:0;margin:0}.guide-item{display:flex;align-items:flex-start;gap:1rem;padding:.8rem;margin-bottom:.5rem;background:hsla(0,0%,100%,.02);border-radius:10px;transition:all .3s ease}.guide-item:hover{background:hsla(0,0%,100%,.05);transform:translateX(5px)}.guide-number{display:flex;align-items:center;justify-content:center;min-width:28px;height:28px;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border-radius:50%;font-size:.85rem;font-weight:600}.tip-item{padding:.6rem;margin-bottom:.5rem;color:#aaa;font-size:.95rem}.result-actions{gap:1rem;margin-top:2rem}.action-btn,.result-actions{display:flex;justify-content:center}.action-btn{padding:1rem 2rem;font-size:1rem;font-weight:600;border:none;border-radius:12px;cursor:pointer;transition:all .3s ease;font-family:Google Sans;align-items:center}.primary-btn{background:linear-gradient(135deg,#667eea,#764ba2);color:#fff}.primary-btn:hover{transform:translateY(-2px);box-shadow:0 10px 25px rgba(102,126,234,.4)}.primary-btn:active{transform:translateY(0)}@media (max-width:768px){.result-content{grid-template-columns:1fr;gap:1.5rem}.result-thumbnail{max-height:300px}.classification-card{padding:1.5rem}.loading-steps{flex-direction:column;align-items:center;gap:1rem}}.empty-history{text-align:center;padding:4rem 2rem;background:hsla(0,0%,100%,.03);border-radius:20px;margin:2rem auto;max-width:600px}.history-stats{display:flex;gap:1rem;justify-content:center;margin-bottom:3rem;flex-wrap:wrap}.stat-card{background:hsla(0,0%,100%,.03);border:1px solid hsla(0,0%,100%,.1);border-radius:15px;padding:1.5rem 2rem;text-align:center;min-width:150px}.stat-number{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;margin-bottom:.5rem}.stat-label{color:#888;font-size:.9rem}.clear-all-btn{padding:1rem 1.5rem;background:rgba(239,68,68,.2);border:1px solid rgba(239,68,68,.5);color:#ef4444;border-radius:12px;cursor:pointer;transition:all .3s ease;font-family:Google Sans;font-weight:600}.clear-all-btn:hover{background:rgba(239,68,68,.3);transform:translateY(-2px)}.history-list{display:flex;flex-direction:column;gap:1.5rem;margin-bottom:3rem}.history-list-item{display:flex;gap:1.5rem;background:hsla(0,0%,100%,.03);border:1px solid hsla(0,0%,100%,.1);border-left:4px solid;border-radius:15px;padding:1.5rem;transition:all .3s ease;animation:fadeIn .5s ease}.history-list-item:hover{background:hsla(0,0%,100%,.05);transform:translateX(5px);box-shadow:0 10px 30px rgba(0,0,0,.3)}.history-thumbnail{flex-shrink:0;width:150px;height:150px;border-radius:12px;overflow:hidden;background:rgba(0,0,0,.3);border:2px solid hsla(0,0%,100%,.1)}.thumbnail-image{width:100%;height:100%;object-fit:cover;transition:all .3s ease}.history-list-item:hover .thumbnail-image{transform:scale(1.05)}.history-content{flex:1 1;display:flex;flex-direction:column;gap:1rem;min-width:0}.history-header{justify-content:space-between}.category-info,.history-header{display:flex;align-items:flex-start}.category-info{gap:.5rem;flex:1 1}.delete-btn-list{width:32px;height:32px;border-radius:50%;background:rgba(239,68,68,.2);border:1px solid rgba(239,68,68,.3);color:#ef4444;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .3s ease;flex-shrink:0;font-size:1.2rem}.delete-btn-list:hover{background:rgba(239,68,68,.4);border-color:#ef4444;transform:rotate(90deg) scale(1.1)}.instructions-preview{background:hsla(0,0%,100%,.02);padding:1rem;border-radius:10px;border:1px solid hsla(0,0%,100%,.05)}.instructions-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:.5rem}.instruction-item{display:flex;align-items:flex-start;gap:.8rem;font-size:.95rem;color:hsla(0,0%,100%,.8);line-height:1.5}.instruction-number{display:flex;align-items:center;justify-content:center;min-width:24px;height:24px;border-radius:50%;font-size:.8rem;font-weight:600;flex-shrink:0}.instruction-number,.view-detail-btn{background:rgba(102,126,234,.2);color:#667eea}.view-detail-btn{align-self:flex-start;padding:.6rem 1.2rem;border:1px solid rgba(102,126,234,.4);border-radius:8px;cursor:pointer;transition:all .3s ease;font-family:Google Sans;font-weight:500;font-size:.9rem}.view-detail-btn:hover{background:rgba(102,126,234,.3);border-color:rgba(102,126,234,.6);transform:translateX(3px)}.history-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));grid-gap:1.5rem;gap:1.5rem;margin-bottom:3rem}.history-card{position:relative;background:hsla(0,0%,100%,.03);border:2px solid hsla(0,0%,100%,.1);border-radius:15px;overflow:hidden;cursor:pointer;transition:all .3s ease}.history-card:hover{transform:translateY(-5px);box-shadow:0 15px 35px rgba(0,0,0,.3);border-color:rgba(102,126,234,.5)}.history-image-wrapper{position:relative;width:100%;height:200px;overflow:hidden;background:rgba(0,0,0,.3)}.history-image{width:100%;height:100%;object-fit:cover;transition:all .3s ease}.history-card:hover .history-image{transform:scale(1.05)}.history-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.5);display:flex;align-items:center;justify-content:center;opacity:0;transition:all .3s ease}.history-card:hover .history-overlay{opacity:1}.overlay-icon{font-size:3rem;animation:pulse 1.5s ease-in-out infinite}.history-info{padding:1rem}.history-category{display:flex;align-items:center;margin-bottom:.5rem;font-size:1.1rem}.history-meta{display:flex;justify-content:space-between;align-items:center;font-size:.85rem}.history-time{color:#888}.history-confidence{color:#667eea;font-weight:600}.delete-btn{position:absolute;top:10px;right:10px;width:32px;height:32px;border-radius:50%;background:rgba(239,68,68,.8);border:none;color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;opacity:0;transition:all .3s ease;z-index:10}.history-card:hover .delete-btn{opacity:1}.delete-btn:hover{background:#ef4444;transform:rotate(90deg) scale(1.1)}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(0,0,0,.85);display:flex;align-items:center;justify-content:center;z-index:1000;padding:1rem;animation:fadeIn .3s ease}.modal-content{background:#112031;border:1px solid hsla(0,0%,100%,.2);border-radius:20px;max-width:900px;width:100%;max-height:90vh;overflow-y:auto;position:relative;animation:slideUp .3s ease}@keyframes slideUp{0%{opacity:0;transform:translateY(50px)}to{opacity:1;transform:translateY(0)}}.modal-close{position:absolute;top:1rem;right:1rem;width:40px;height:40px;border-radius:50%;background:hsla(0,0%,100%,.1);border:1px solid hsla(0,0%,100%,.2);color:#fff;cursor:pointer;display:flex;align-items:center;justify-content:center;font-size:1.5rem;transition:all .3s ease;z-index:10}.modal-close:hover{background:rgba(239,68,68,.3);border-color:rgba(239,68,68,.5);transform:rotate(90deg)}.modal-body{display:grid;grid-template-columns:1fr 1fr;grid-gap:2rem;gap:2rem;padding:2rem}.modal-image{width:100%;height:auto;max-height:500px;object-fit:contain;border-radius:15px;border:2px solid hsla(0,0%,100%,.1)}.modal-details{overflow-y:auto;max-height:500px}@media (max-width:768px){.header{padding:0 1rem}.history-grid{grid-template-columns:1fr}.history-list-item{flex-direction:column;padding:1rem}.history-thumbnail{width:100%;height:200px}.history-header{flex-direction:column;gap:1rem}.delete-btn-list{align-self:flex-end}.instructions-preview{padding:.8rem}.instruction-item{font-size:.9rem}.modal-body{grid-template-columns:1fr;padding:1.5rem}.modal-content{margin:1rem}.history-stats{flex-direction:column}.stat-card{width:100%}}.auth-container{display:flex;align-items:center;justify-content:center;min-height:60vh;padding:2rem}.auth-card{background:hsla(0,0%,100%,.03);border:1px solid hsla(0,0%,100%,.1);border-radius:20px;padding:3rem;max-width:450px;width:100%;animation:fadeIn .5s ease}.auth-form{margin-bottom:2rem}.form-group{margin-bottom:1.5rem}.form-group label{display:block;margin-bottom:.5rem;color:hsla(0,0%,100%,.9);font-weight:500;font-size:.95rem}.form-group input{width:100%;padding:.9rem 1.2rem;background:hsla(0,0%,100%,.05);border:1px solid hsla(0,0%,100%,.2);border-radius:10px;color:#fff;font-size:1rem;font-family:Google Sans;transition:all .3s ease}.form-group input:focus{outline:none;border-color:rgba(102,126,234,.6);background:hsla(0,0%,100%,.08);box-shadow:0 0 0 3px rgba(102,126,234,.1)}.form-group input:disabled{opacity:.5;cursor:not-allowed}.form-group input::placeholder{color:hsla(0,0%,100%,.4)}.auth-submit-btn{width:100%;padding:1rem;font-size:1.1rem;font-weight:600;background:linear-gradient(135deg,#667eea,#764ba2);color:#fff;border:none;border-radius:12px;cursor:pointer;transition:all .3s ease;font-family:Google Sans}.auth-submit-btn:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 10px 25px rgba(102,126,234,.4)}.auth-submit-btn:active:not(:disabled){transform:translateY(0)}.auth-submit-btn:disabled{opacity:.6;cursor:not-allowed}.auth-footer{text-align:center;color:#888}.auth-footer p{margin-bottom:1rem}.auth-link{color:#667eea;text-decoration:none;font-weight:500;transition:all .3s ease}.auth-link:hover{color:#764ba2;text-decoration:underline}.error-message{background:rgba(239,68,68,.1);border:1px solid rgba(239,68,68,.3);color:#ef4444;padding:1rem;border-radius:10px;margin-bottom:1.5rem;text-align:center}@media (max-width:768px){.auth-card{padding:2rem 1.5rem}.header nav{gap:.5rem;flex-wrap:wrap}.user-email{font-size:.8rem;padding:.5rem .8rem}.nav-link{padding:.5rem 1rem;font-size:.9rem}}.guide-categories{display:flex;flex-direction:column;gap:2rem;margin-bottom:3rem}.guide-category-card{background:hsla(0,0%,100%,.03);border:1px solid hsla(0,0%,100%,.1);border-top:4px solid;border-radius:15px;padding:2rem;animation:fadeIn .5s ease}.guide-category-header{display:flex;align-items:center;gap:1.5rem;margin-bottom:2rem;padding-bottom:1.5rem;border-bottom:1px solid hsla(0,0%,100%,.1)}.guide-content-grid{display:grid;grid-template-columns:1fr 1fr;grid-gap:2rem;gap:2rem;margin-bottom:2rem}.guide-section{background:hsla(0,0%,100%,.02);padding:1.5rem;border-radius:12px;border:1px solid hsla(0,0%,100%,.05)}.guide-section-title{font-size:1.2rem;font-weight:600;margin-bottom:1rem}.guide-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:.8rem}.guide-list-item{display:flex;align-items:flex-start;gap:.8rem;font-size:.95rem;line-height:1.6;color:hsla(0,0%,100%,.85)}.guide-bullet{font-size:.6rem;margin-top:.5rem;flex-shrink:0}.guide-examples{background:hsla(0,0%,100%,.02);padding:1.5rem;border-radius:12px;border:1px solid hsla(0,0%,100%,.05)}.examples-grid{display:flex;flex-wrap:wrap;gap:.8rem}.example-badge{padding:.5rem 1rem;border-radius:8px;font-size:.9rem;font-weight:500;transition:all .3s ease}.example-badge:hover{transform:translateY(-2px);box-shadow:0 5px 15px rgba(0,0,0,.2)}.guide-tips-section{background:hsla(0,0%,100%,.03);border:1px solid hsla(0,0%,100%,.1);border-radius:20px;padding:3rem 2rem;margin-top:3rem}.tips-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));grid-gap:1.5rem;gap:1.5rem}.tip-card{background:hsla(0,0%,100%,.02);border:1px solid hsla(0,0%,100%,.05);border-radius:15px;padding:2rem;text-align:center;transition:all .3s ease}.tip-card:hover{background:hsla(0,0%,100%,.05);transform:translateY(-5px);box-shadow:0 10px 30px rgba(0,0,0,.3)}.tip-icon{font-size:3rem;margin-bottom:1rem;animation:pulse 2s ease-in-out infinite}.tip-card h3{font-size:1.3rem;font-weight:600;margin-bottom:.8rem;color:hsla(0,0%,100%,.95)}.tip-card p{color:#888;font-size:.95rem;line-height:1.6}@media (max-width:768px){.guide-category-header{flex-direction:column;text-align:center}.guide-content-grid{grid-template-columns:1fr;gap:1.5rem}.guide-section{padding:1rem}.tips-grid{grid-template-columns:1fr}.example-badge{font-size:.85rem;padding:.4rem .8rem}}