@import"https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&family=Inter:wght@400;500;600&display=swap";.login-modal-content{background:var(--color-bg-card);width:90%;max-width:420px;border-radius:var(--border-radius-xl);padding:var(--space-2xl) var(--space-xl);position:relative;animation:modalPopIn .3s cubic-bezier(.175,.885,.32,1.275);box-shadow:var(--shadow-lg)}.login-header{text-align:center;margin-bottom:var(--space-xl)}.login-header h2{margin-bottom:var(--space-xs);font-size:1.8rem}.login-header p{color:var(--color-text-muted);font-size:.95rem}.auth-error-message{background-color:#fee2e2;color:var(--color-danger);padding:var(--space-sm) var(--space-md);border-radius:var(--border-radius-md);margin-bottom:var(--space-lg);display:flex;align-items:center;gap:var(--space-sm);font-size:.9rem;font-weight:500}.login-form{display:flex;flex-direction:column;gap:var(--space-md)}.auth-input-wrapper{position:relative;display:flex;align-items:center}.auth-input-icon{position:absolute;left:1rem;color:var(--color-highlight);font-size:1.1rem;pointer-events:none}.auth-input-wrapper input{width:100%;padding:.9rem 1rem .9rem 2.8rem;border:1px solid rgba(0,0,0,.1);border-radius:var(--border-radius-md);font-family:var(--font-body);font-size:1rem;background-color:var(--color-bg-main);transition:all var(--transition-fast)}.auth-input-wrapper input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 2px #1b263b1a;background-color:var(--color-bg-card)}.login-submit-btn{margin-top:var(--space-sm);padding:1rem;font-size:1.1rem}.login-submit-btn:disabled{opacity:.7;cursor:not-allowed}.login-footer{margin-top:var(--space-xl);text-align:center;font-size:.95rem;border-top:1px solid rgba(0,0,0,.05);padding-top:var(--space-md)}.auth-toggle-link{background:none;border:none;color:var(--color-accent);font-weight:600;margin-left:.5rem;font-family:var(--font-body);font-size:.95rem;cursor:pointer;text-decoration:underline;text-decoration-color:transparent;transition:text-decoration-color var(--transition-fast)}.auth-toggle-link:hover{text-decoration-color:var(--color-accent)}.login-modal-content .close-btn{position:absolute;top:15px;right:15px;width:32px;height:32px;padding:0;z-index:10}.btn-full{width:100%}.google-auth-section{margin-bottom:var(--space-lg)}.btn-google{background-color:#fff;color:#3c4043;border:1px solid #dadce0;border-radius:var(--border-radius-full);font-weight:500;font-family:var(--font-body);display:flex;align-items:center;justify-content:center;gap:12px;padding:.8rem 1rem;font-size:1rem;cursor:pointer;transition:background-color var(--transition-fast),box-shadow var(--transition-fast)}.btn-google:hover{background-color:#f8f9fa;box-shadow:0 1px 2px #3c40434d,0 1px 3px 1px #3c404326}.btn-google:disabled{opacity:.7;cursor:not-allowed;box-shadow:none}.auth-divider{display:flex;align-items:center;text-align:center;margin:var(--space-lg) 0 0 0;color:var(--color-text-muted);font-size:.85rem}.auth-divider:before,.auth-divider:after{content:"";flex:1;border-bottom:1px solid rgba(0,0,0,.1)}.auth-divider span{padding:0 var(--space-md);opacity:.7}.navbar-header{position:fixed;top:0;left:0;width:100%;z-index:900;transition:all var(--transition-normal);padding:var(--space-md) 0}.navbar-header.nav-scrolled{padding:var(--space-sm) 0;box-shadow:var(--shadow-sm);border-bottom:1px solid rgba(0,0,0,.05)}.navbar-container{display:flex;align-items:center;justify-content:space-between}.navbar-logo{display:flex;align-items:center;gap:var(--space-xs);font-family:var(--font-heading);font-size:1.5rem;font-weight:800;letter-spacing:-.5px}.logo-icon{font-size:1.8rem;font-weight:400}.logo-text{color:var(--color-text-main)}.navbar-desktop{display:none}@media(min-width:992px){.navbar-desktop{display:flex;align-items:center;gap:var(--space-lg)}}.nav-link{font-weight:500;font-size:.95rem;position:relative;padding:var(--space-xs) 0}.nav-link:after{content:"";position:absolute;bottom:0;left:0;width:0;height:2px;background-color:var(--color-accent);transition:width var(--transition-fast)}.nav-link:hover:after,.nav-link.active:after{width:100%}.nav-link.active{color:var(--color-accent)}.ml-4{margin-left:var(--space-lg)}.navbar-mobile-toggle{display:flex;background:transparent;color:var(--color-text-main)}@media(min-width:992px){.navbar-mobile-toggle{display:none}}.navbar-mobile-menu{position:absolute;top:100%;left:0;width:100%;background-color:var(--color-bg-main, #ffffff);padding:var(--space-md) var(--space-md) var(--space-xl);border-bottom:1px solid rgba(0,0,0,.05);box-shadow:var(--shadow-lg)}.mobile-nav-links{display:flex;flex-direction:column;gap:var(--space-sm)}.mobile-nav-link{display:flex;align-items:center;padding:var(--space-md);border-radius:var(--border-radius-md);font-weight:500;font-size:1.1rem}.mobile-nav-link:hover,.mobile-nav-link.active{background-color:#0000000d;color:var(--color-accent)}.mr-2{margin-right:var(--space-sm)}.mt-4{margin-top:var(--space-lg)}.nav-profile-container{position:relative;margin-left:var(--space-lg);cursor:pointer}.nav-avatar{width:40px;height:40px;border-radius:50%;background-color:var(--color-primary-light);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:1.2rem;transition:transform .2s;border:2px solid transparent}.nav-avatar.profe{background-color:#f59e0b;border-color:#fcd34d;color:#fff}.nav-profile-container:hover .nav-avatar{transform:scale(1.05)}.profile-dropdown{position:absolute;top:calc(100% + 10px);right:0;background:var(--color-bg-card);border-radius:var(--border-radius-md);box-shadow:var(--shadow-lg);padding:var(--space-md);min-width:200px;display:flex;flex-direction:column;gap:var(--space-sm);border:1px solid rgba(0,0,0,.05);animation:fadeIn .2s ease-out}.profile-dropdown:before{content:"";position:absolute;top:-6px;right:15px;width:12px;height:12px;background:var(--color-bg-card);transform:rotate(45deg);border-left:1px solid rgba(0,0,0,.05);border-top:1px solid rgba(0,0,0,.05)}.profile-name{font-weight:600;font-size:.95rem;color:var(--color-text-main);word-break:break-all}.profile-role{font-size:.75rem;background:#fffbeb;color:#d97706;padding:2px 8px;border-radius:12px;font-weight:700;align-self:flex-start;border:1px solid #fcd34d}.logout-btn{display:flex;align-items:center;gap:var(--space-sm);width:100%;padding:var(--space-sm);background:none;border:none;color:var(--color-danger);font-weight:500;font-size:.95rem;text-align:left;border-radius:var(--border-radius-sm);transition:background .15s}.logout-btn:hover{background:#e639461a}.mobile-profile-section{border-top:1px solid rgba(0,0,0,.05);padding-top:var(--space-md);display:flex;flex-direction:column;gap:var(--space-md)}.mobile-profile-info{display:flex;align-items:center;gap:var(--space-md);font-weight:600;font-size:1.1rem}@keyframes fadeIn{0%{opacity:0;transform:translateY(-5px)}to{opacity:1;transform:translateY(0)}}.footer{background-color:var(--color-bg-elevated);border-top:1px solid rgba(0,0,0,.05);margin-top:auto;padding-bottom:var(--space-xl)}.footer-grid{display:grid;grid-template-columns:1fr;gap:var(--space-2xl);margin-bottom:var(--space-3xl)}@media(min-width:768px){.footer-grid{grid-template-columns:2fr 1fr 1fr;gap:var(--space-xl)}}.footer-brand .navbar-logo{margin-bottom:var(--space-md);display:inline-flex}.footer-description{color:var(--color-text-muted);font-size:.95rem;margin-bottom:var(--space-lg);max-width:400px}.social-links{display:flex;flex-direction:column;gap:var(--space-md);margin-top:var(--space-md)}.social-links a{display:inline-flex;align-items:center;gap:var(--space-sm);padding:.5rem 1rem;border-radius:var(--border-radius-full);background:#00000008;color:var(--color-text-main);font-size:1.25rem;transition:all var(--transition-normal);text-decoration:none;width:fit-content}.social-links a span{font-size:.9rem;color:var(--color-text-muted);transition:color var(--transition-fast)}.social-links a:hover{background:var(--color-accent);color:var(--color-bg-main);transform:translate(5px)}.social-links a:hover span{color:var(--color-bg-main)}.footer-heading{font-size:1.1rem;margin-bottom:var(--space-lg);color:var(--color-text-main)}.footer-links ul{list-style:none;padding:0;display:flex;flex-direction:column;gap:var(--space-sm)}.footer-links a{color:var(--color-text-muted);transition:color var(--transition-fast)}.footer-links a:hover{color:var(--color-accent)}.footer-bottom{border-top:1px solid rgba(0,0,0,.05);padding-top:var(--space-xl);display:flex;flex-direction:column;align-items:center;gap:var(--space-sm);text-align:center;color:var(--color-text-muted);font-size:.85rem}@media(min-width:768px){.footer-bottom{flex-direction:row;justify-content:space-between;text-align:left}}.footer-credit{color:var(--color-primary-light)}.video-hero{padding:calc(var(--space-3xl) + 60px) 0 var(--space-3xl);min-height:90vh;display:flex;align-items:center;position:relative;overflow:hidden}.video-hero:after{content:"";position:absolute;top:-20%;right:-10%;width:50%;height:80%;background:radial-gradient(circle,rgba(114,132,111,.15) 0%,transparent 70%);z-index:-1;pointer-events:none}.video-hero:before{content:"";position:absolute;bottom:-10%;left:-5%;width:40%;height:60%;background:radial-gradient(circle,rgba(224,122,95,.1) 0%,transparent 70%);z-index:-1;pointer-events:none}.video-hero-container{display:grid;grid-template-columns:1fr;gap:var(--space-2xl);align-items:center}@media(min-width:992px){.video-hero-container{grid-template-columns:1.1fr .9fr;gap:var(--space-3xl)}}.badge{display:inline-flex;align-items:center;gap:var(--space-sm);padding:6px 16px;border-radius:var(--border-radius-full);font-size:.85rem;font-weight:500;margin-bottom:var(--space-lg);color:var(--color-text-main)}.badge-dot{width:8px;height:8px;background-color:var(--color-danger);border-radius:50%;box-shadow:0 0 8px var(--color-danger);animation:pulse-dot 2s infinite}@keyframes pulse-dot{0%{box-shadow:0 0 #e63946b3}70%{box-shadow:0 0 0 6px #e6394600}to{box-shadow:0 0 #e6394600}}.hero-title{font-size:3rem;font-weight:800;line-height:1.1;letter-spacing:-1px;margin-bottom:var(--space-md)}@media(min-width:768px){.hero-title{font-size:4.5rem}}.hero-description{font-size:1.1rem;color:var(--color-text-muted);max-width:500px;margin-bottom:var(--space-xl);line-height:1.7}@media(min-width:768px){.hero-description{font-size:1.25rem}}.hero-actions{display:flex;flex-direction:column;gap:var(--space-md)}@media(min-width:576px){.hero-actions{flex-direction:row;align-items:center}}.btn-lg{padding:14px 32px;font-size:1.1rem}.ml-2{margin-left:var(--space-sm)}.video-hero-visual{position:relative;perspective:1000px}.video-card{border-radius:var(--border-radius-xl);overflow:hidden;box-shadow:var(--shadow-lg);transform:rotateY(-5deg) rotateX(5deg);transition:transform var(--transition-slow)}.video-card:hover{transform:rotateY(0) rotateX(0)}.video-thumbnail-container{width:100%;aspect-ratio:16/9;position:relative;overflow:hidden;background-color:var(--color-primary-dark)}.video-thumbnail-placeholder{width:100%;height:100%;background:linear-gradient(135deg,var(--color-primary-dark) 0%,var(--color-bg-elevated) 100%);display:flex;align-items:center;justify-content:center;position:relative}.thumbnail-overlay{position:absolute;inset:0;background:radial-gradient(circle,transparent 30%,rgba(0,0,0,.5) 100%)}.play-icon-large{font-size:4rem;color:#fff;z-index:2;filter:drop-shadow(0 4px 6px rgba(0,0,0,.3));transition:transform var(--transition-normal)}.video-card:hover .play-icon-large{transform:scale(1.1);color:var(--color-accent)}.video-card-info{padding:var(--space-md);background:var(--color-bg-elevated)}.video-title{font-size:1.2rem;margin-bottom:var(--space-xs)}.video-meta{color:var(--color-text-muted);font-size:.9rem;margin:0}.floating-element{position:absolute;padding:10px 20px;border-radius:var(--border-radius-full);font-weight:500;font-size:.9rem;box-shadow:var(--shadow-md);z-index:10}.float-1{top:-20px;right:-20px;border-bottom-left-radius:4px}.float-2{bottom:-30px;left:-20px;border-top-right-radius:4px}@media(max-width:991px){.floating-element{display:none}}.bg-texture{position:relative}.bg-texture:before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(0,0,0,.1),transparent)}.mb-xl{margin-bottom:var(--space-2xl)}.section-title{font-size:2.5rem;margin-bottom:var(--space-sm)}.section-subtitle{color:var(--color-text-muted);font-size:1.1rem;max-width:600px;margin:0 auto}.resource-grid{display:grid;grid-template-columns:1fr;gap:var(--space-xl)}@media(min-width:768px){.resource-grid{grid-template-columns:repeat(3,1fr)}}.resource-card{display:flex!important;flex-direction:column;height:100%;text-decoration:none;background-color:var(--color-bg-card)}.resource-card:hover .resource-action{color:var(--color-accent)}.resource-card:hover .resource-action svg{transform:translate(5px)}.resource-icon-wrapper{width:60px;height:60px;border-radius:var(--border-radius-md);display:flex;align-items:center;justify-content:center;font-size:1.8rem;margin-bottom:var(--space-lg)}.resource-title{font-size:1.4rem;margin-bottom:var(--space-sm)}.resource-description{color:var(--color-text-muted);margin-bottom:var(--space-xl);flex-grow:1;text-align:justify}.resource-action{display:flex;align-items:center;gap:var(--space-xs);font-weight:600;color:var(--color-text-main);transition:color var(--transition-fast);margin-top:auto}.resource-action svg{transition:transform var(--transition-fast)}.biblioteca-page{min-height:calc(100vh - 80px);padding-top:calc(var(--space-3xl) + 60px)}.page-header{margin-bottom:var(--space-2xl)}.filter-scroll{display:flex;align-items:center;gap:var(--space-sm);overflow-x:auto;padding-bottom:4px}.filter-scroll::-webkit-scrollbar{height:4px}.filter-icon{color:var(--color-text-muted);font-size:1.2rem;margin-right:var(--space-xs);flex-shrink:0}.filter-btn{background-color:transparent;color:var(--color-text-muted);padding:8px 16px;border-radius:var(--border-radius-full);font-size:.9rem;white-space:nowrap;border:1px solid rgba(0,0,0,.1);transition:all var(--transition-fast)}.filter-btn:hover{background-color:#0000000d;color:var(--color-text-main)}.filter-btn.active{background-color:var(--color-primary);color:var(--color-bg-main);border-color:var(--color-primary)}.pdf-grid{display:grid;grid-template-columns:1fr;gap:var(--space-lg)}@media(min-width:640px){.pdf-grid{grid-template-columns:repeat(2,1fr)}}@media(min-width:992px){.pdf-grid{grid-template-columns:repeat(3,1fr)}}.pdf-card{display:flex;flex-direction:column}.pdf-card-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:var(--space-sm)}.pdf-badge{background-color:#52614f4d;color:var(--color-primary-light);padding:2px 8px;border-radius:4px;font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.5px}.pdf-level{font-size:.8rem;color:var(--color-text-muted)}.pdf-title{font-size:1.1rem;margin-bottom:0;flex-grow:1;line-height:1.3}.pdf-actions{display:flex;justify-content:space-between;align-items:center;margin-top:auto;padding-top:var(--space-md);border-top:1px solid rgba(0,0,0,.05)}.pdf-size{font-size:.85rem;color:var(--color-text-muted)}.action-buttons{display:flex;gap:var(--space-sm)}.btn-icon{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:var(--border-radius-full);background-color:#0000000d;color:var(--color-text-main);transition:all var(--transition-fast)}.btn-icon:hover{background-color:#0000001a;transform:translateY(-2px)}.btn-primary-icon{background-color:var(--color-accent);color:var(--color-bg-main)}.btn-primary-icon:hover{background-color:var(--color-accent-hover);box-shadow:0 0 10px #e07a5f66}.no-results{text-align:center;padding:var(--space-3xl) var(--space-xl);border-radius:var(--border-radius-lg);grid-column:1 / -1}.selectividad-page{min-height:calc(100vh - 80px);padding-top:calc(var(--space-3xl) + 60px)}.exam-list{display:flex;flex-direction:column;gap:var(--space-md)}.exam-item{display:flex;flex-direction:column;padding:var(--space-lg);border-radius:var(--border-radius-md);transition:transform var(--transition-fast),border-color var(--transition-fast)}@media(min-width:768px){.exam-item{flex-direction:row;align-items:center;justify-content:space-between}}.exam-item:hover{transform:translate(4px);border-color:#e07a5f4d}.exam-info{display:flex;align-items:center;gap:var(--space-md);margin-bottom:var(--space-md)}@media(min-width:768px){.exam-info{margin-bottom:0}}.exam-year-badge{background:var(--color-primary-dark);color:var(--color-text-main);font-family:var(--font-heading);font-weight:700;font-size:1.1rem;padding:12px 16px;border-radius:var(--border-radius-sm);display:flex;align-items:center;justify-content:center;border-left:3px solid var(--color-highlight)}.exam-details{display:flex;flex-direction:column}.exam-title{font-size:1.2rem;margin-bottom:4px}.exam-block{font-size:.9rem;color:var(--color-text-muted);margin:0}.exam-actions{display:flex;gap:var(--space-sm);flex-wrap:wrap}.table-btn{white-space:nowrap}.temario-page{min-height:calc(100vh - 80px);padding-top:calc(var(--space-3xl) + 60px)}.temario-grid{display:grid;grid-template-columns:1fr;gap:var(--space-xl)}@media(min-width:768px){.temario-grid{grid-template-columns:repeat(2,1fr)}}.temario-card{padding:var(--space-xl);border-radius:var(--border-radius-lg);display:flex;flex-direction:column;transition:transform var(--transition-normal),box-shadow var(--transition-normal)}.temario-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg),0 0 20px #0000000d}.temario-icon{margin-bottom:var(--space-md);background:#0000000d;width:64px;height:64px;display:flex;align-items:center;justify-content:center;border-radius:var(--border-radius-md)}.temario-title{font-size:1.6rem;margin-bottom:var(--space-sm)}.temario-desc{color:var(--color-text-muted);font-size:1.05rem;margin-bottom:var(--space-xl)}.temario-list{list-style:none;padding:0;margin:auto 0 0;display:flex;flex-direction:column;gap:var(--space-md);border-top:1px solid rgba(0,0,0,.05);padding-top:var(--space-lg)}.temario-list li{display:flex;align-items:flex-start;gap:var(--space-sm)}.list-icon{margin-top:4px;flex-shrink:0}.topic-link{font-size:1.05rem;font-weight:500;color:var(--color-text-main);transition:color var(--transition-fast);line-height:1.4}.topic-link:hover{color:var(--color-accent)}.temario-bloque{margin-bottom:var(--space-3xl)}.bloque-titulo{font-size:2rem;font-weight:800;margin-bottom:var(--space-xl);color:var(--color-text-main);display:flex;align-items:center;gap:var(--space-sm);padding-bottom:var(--space-sm);border-bottom:2px solid rgba(0,0,0,.05)}.temario-detail-page{min-height:calc(100vh - 80px);padding-top:calc(var(--space-3xl) + 60px)}.back-link{display:inline-flex;align-items:center;gap:var(--space-xs);color:var(--color-text-muted);font-weight:500;margin-bottom:var(--space-xl);transition:color var(--transition-fast)}.back-link:hover{color:var(--color-text-main)}.detail-header{padding:var(--space-2xl);border-radius:var(--border-radius-lg);margin-bottom:var(--space-3xl)}.detail-title{font-size:2.5rem;margin-bottom:var(--space-sm)}.detail-description{font-size:1.2rem;color:var(--color-text-main);opacity:.9;margin:0 0 var(--space-xl) 0}.progress-container{margin-top:var(--space-xl);padding-top:var(--space-xl);border-top:1px solid rgba(0,0,0,.1)}.progress-info{display:flex;justify-content:space-between;font-size:.95rem;font-weight:500;color:var(--color-text-muted);margin-bottom:var(--space-sm)}.progress-bar-bg{width:100%;height:10px;background-color:var(--color-bg-body);border-radius:var(--border-radius-full);overflow:hidden}.progress-bar-fill{height:100%;border-radius:var(--border-radius-full);transition:width .6s cubic-bezier(.4,0,.2,1)}.sections-list{display:flex;flex-direction:column;gap:var(--space-3xl)}.section-card{padding-bottom:var(--space-2xl);border-bottom:1px solid rgba(0,0,0,.05);transition:opacity var(--transition-normal)}.section-card.completed-card{opacity:.7}.section-card.completed-card:hover{opacity:1}.section-card:last-child{border-bottom:none}.section-card-header{display:flex;justify-content:space-between;align-items:flex-start;gap:var(--space-md);margin-bottom:var(--space-xl);flex-wrap:wrap}.section-card-title{font-size:1.8rem;color:var(--color-text-main);margin:0;flex:1}.btn-complete{display:inline-flex;align-items:center;gap:8px;padding:8px 16px;border-radius:var(--border-radius-full);font-size:.9rem;font-weight:600;background-color:var(--color-bg-body);color:var(--color-text-muted);border:1px solid rgba(0,0,0,.1);cursor:pointer;transition:all var(--transition-fast)}.btn-complete:hover{background-color:#0000000d;transform:translateY(-2px)}.btn-complete.active{background-color:#22c55e1a;color:#16a34a;border-color:#22c55e4d}.btn-complete.active:hover{background-color:#22c55e26}.section-content-grid{display:grid;grid-template-columns:1fr;gap:var(--space-xl)}@media(min-width:992px){.section-content-grid{grid-template-columns:1fr 1fr;gap:var(--space-2xl)}}.theory-badge,.video-badge{display:inline-flex;align-items:center;gap:var(--space-sm);padding:6px 12px;border-radius:var(--border-radius-sm);font-size:.85rem;font-weight:600;text-transform:uppercase;letter-spacing:.5px;margin-bottom:var(--space-md)}.theory-badge{background-color:#0000000d;color:var(--color-text-muted)}.video-badge{background-color:#e6394626;color:var(--color-danger)}.theory-text{font-size:1.1rem;line-height:1.8;color:var(--color-text-muted)}.video-embed-container{position:relative;width:100%;padding-bottom:56.25%;background-color:var(--color-bg-card);border-radius:var(--border-radius-md);overflow:hidden;box-shadow:var(--shadow-md);border:1px solid rgba(0,0,0,.05)}.video-embed-container iframe{position:absolute;top:0;left:0;width:100%;height:100%}.solver-page{min-height:calc(100vh - 80px);padding-top:calc(var(--space-3xl) + 60px)}.solver-container{display:grid;grid-template-columns:1fr;gap:var(--space-xl)}@media(min-width:992px){.solver-container{grid-template-columns:2fr 1fr}}.chat-interface{display:flex;flex-direction:column;height:600px;padding:0;overflow:hidden;border-top:4px solid var(--color-accent)}.chat-header{display:flex;align-items:center;gap:var(--space-md);padding:var(--space-lg);border-bottom:1px solid rgba(0,0,0,.05);background-color:var(--color-bg-elevated)}.bot-avatar{width:48px;height:48px;border-radius:var(--border-radius-full);display:flex;align-items:center;justify-content:center}.chat-title{font-size:1.2rem;margin-bottom:2px}.chat-subtitle{color:var(--color-text-muted);font-size:.85rem;margin:0}.chat-messages{flex:1;padding:var(--space-lg);overflow-y:auto;display:flex;flex-direction:column;gap:var(--space-lg);background-color:var(--color-bg-main);scrollbar-width:thin;scrollbar-color:var(--color-primary) var(--color-bg-main)}.message-wrapper{display:flex;align-items:flex-end;gap:var(--space-sm);max-width:85%}.message-wrapper.bot{align-self:flex-start}.message-wrapper.user{align-self:flex-end;max-width:80%}.message-avatar{width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0}.message-avatar.bot{background-color:var(--color-primary-dark);color:var(--color-primary-light)}.message-avatar.user{background-color:var(--color-accent);color:#fff}.message-bubble{padding:12px 16px;border-radius:var(--border-radius-md);font-size:.95rem;line-height:1.5;white-space:pre-wrap}.message-bubble.bot{background-color:var(--color-bg-elevated);border:1px solid rgba(0,0,0,.05);border-bottom-left-radius:4px}.message-bubble.user{background-color:var(--color-accent);color:#fff;border-bottom-right-radius:4px}.typing-indicator{display:flex;align-items:center;gap:4px;padding:16px 20px!important}.typing-indicator span{width:6px;height:6px;background-color:var(--color-text-muted);border-radius:50%;animation:typing 1.4s infinite ease-in-out both}.typing-indicator span:nth-child(1){animation-delay:-.32s}.typing-indicator span:nth-child(2){animation-delay:-.16s}@keyframes typing{0%,80%,to{transform:scale(0)}40%{transform:scale(1)}}.chat-input-area{padding:var(--space-md) var(--space-lg);background-color:var(--color-bg-elevated);border-top:1px solid rgba(0,0,0,.05);display:flex;align-items:center;gap:var(--space-sm)}.chat-input{flex:1;background-color:var(--color-bg-main);border:1px solid rgba(0,0,0,.1);padding:12px 16px;border-radius:var(--border-radius-full);color:var(--color-text-main);font-family:var(--font-body);transition:border-color var(--transition-fast)}.chat-input:focus{outline:none;border-color:var(--color-accent)}.attachment-btn{background:transparent;color:var(--color-text-muted)}.attachment-btn:hover{color:var(--color-text-main);background:#0000000d}.send-btn:disabled{opacity:.5;cursor:not-allowed;box-shadow:none}.solver-tools{display:flex;flex-direction:column;gap:var(--space-lg)}.tools-card{padding:var(--space-xl);border-radius:var(--border-radius-lg)}.tools-title{font-size:1.2rem;margin-bottom:var(--space-lg);border-bottom:2px solid rgba(0,0,0,.05);padding-bottom:var(--space-sm)}.tools-list{list-style:none;padding:0;display:flex;flex-direction:column;gap:var(--space-xl)}.tools-list li{display:flex;gap:var(--space-md)}.tool-icon{font-size:1.8rem;line-height:1}.tools-list h4{font-size:1rem;margin-bottom:2px}.tools-list p{font-size:.85rem;color:var(--color-text-muted);margin:0}.premium-upsell{padding:var(--space-xl);border-radius:var(--border-radius-lg);background:linear-gradient(135deg,#52614f33,#1e1e1e99);border-left:3px solid var(--color-primary-light)}.premium-upsell h4{color:var(--color-primary-light);margin-bottom:var(--space-sm)}.premium-upsell p{font-size:.9rem;color:var(--color-text-muted)}.markdown-body{white-space:normal;word-break:break-word}.markdown-body p{margin-bottom:.8em}.markdown-body p:last-child{margin-bottom:0}.markdown-body ul,.markdown-body ol{margin-bottom:.8em;padding-left:1.5em}.markdown-body ul li{list-style-type:disc;margin-bottom:.2em}.markdown-body ol li{list-style-type:decimal;margin-bottom:.2em}.markdown-body h1,.markdown-body h2,.markdown-body h3,.markdown-body h4{margin-top:1em;margin-bottom:.5em;color:var(--color-text-main);font-size:1.1em}.markdown-body blockquote{border-left:3px solid var(--color-accent);padding-left:1em;margin-left:0;color:var(--color-text-muted)}.markdown-body table{width:100%;border-collapse:collapse;margin-bottom:.8em}.markdown-body th,.markdown-body td{border:1px solid rgba(0,0,0,.1);padding:6px 10px}.markdown-body th{background-color:#00000008}.katex-display{overflow-x:auto;overflow-y:hidden;padding-bottom:.5em}@font-face{font-display:block;font-family:KaTeX_AMS;font-style:normal;font-weight:400;src:url(/assets/KaTeX_AMS-Regular-BQhdFMY1.woff2) format("woff2"),url(/assets/KaTeX_AMS-Regular-DMm9YOAa.woff) format("woff"),url(/assets/KaTeX_AMS-Regular-DRggAlZN.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Caligraphic-Bold-Dq_IR9rO.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Bold-BEiXGLvX.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Bold-ATXxdsX0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Caligraphic;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Caligraphic-Regular-Di6jR-x-.woff2) format("woff2"),url(/assets/KaTeX_Caligraphic-Regular-CTRA-rTL.woff) format("woff"),url(/assets/KaTeX_Caligraphic-Regular-wX97UBjC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Fraktur-Bold-CL6g_b3V.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Bold-BsDP51OF.woff) format("woff"),url(/assets/KaTeX_Fraktur-Bold-BdnERNNW.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Fraktur;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Fraktur-Regular-CTYiF6lA.woff2) format("woff2"),url(/assets/KaTeX_Fraktur-Regular-Dxdc4cR9.woff) format("woff"),url(/assets/KaTeX_Fraktur-Regular-CB_wures.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:700;src:url(/assets/KaTeX_Main-Bold-Cx986IdX.woff2) format("woff2"),url(/assets/KaTeX_Main-Bold-Jm3AIy58.woff) format("woff"),url(/assets/KaTeX_Main-Bold-waoOVXN0.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Main-BoldItalic-DxDJ3AOS.woff2) format("woff2"),url(/assets/KaTeX_Main-BoldItalic-SpSLRI95.woff) format("woff"),url(/assets/KaTeX_Main-BoldItalic-DzxPMmG6.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Main-Italic-NWA7e6Wa.woff2) format("woff2"),url(/assets/KaTeX_Main-Italic-BMLOBm91.woff) format("woff"),url(/assets/KaTeX_Main-Italic-3WenGoN9.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Main;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Main-Regular-B22Nviop.woff2) format("woff2"),url(/assets/KaTeX_Main-Regular-Dr94JaBh.woff) format("woff"),url(/assets/KaTeX_Main-Regular-ypZvNtVU.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:700;src:url(/assets/KaTeX_Math-BoldItalic-CZnvNsCZ.woff2) format("woff2"),url(/assets/KaTeX_Math-BoldItalic-iY-2wyZ7.woff) format("woff"),url(/assets/KaTeX_Math-BoldItalic-B3XSjfu4.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Math;font-style:italic;font-weight:400;src:url(/assets/KaTeX_Math-Italic-t53AETM-.woff2) format("woff2"),url(/assets/KaTeX_Math-Italic-DA0__PXp.woff) format("woff"),url(/assets/KaTeX_Math-Italic-flOr_0UB.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:700;src:url(/assets/KaTeX_SansSerif-Bold-D1sUS0GD.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Bold-DbIhKOiC.woff) format("woff"),url(/assets/KaTeX_SansSerif-Bold-CFMepnvq.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:italic;font-weight:400;src:url(/assets/KaTeX_SansSerif-Italic-C3H0VqGB.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Italic-DN2j7dab.woff) format("woff"),url(/assets/KaTeX_SansSerif-Italic-YYjJ1zSn.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_SansSerif;font-style:normal;font-weight:400;src:url(/assets/KaTeX_SansSerif-Regular-DDBCnlJ7.woff2) format("woff2"),url(/assets/KaTeX_SansSerif-Regular-CS6fqUqJ.woff) format("woff"),url(/assets/KaTeX_SansSerif-Regular-BNo7hRIc.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Script;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Script-Regular-D3wIWfF6.woff2) format("woff2"),url(/assets/KaTeX_Script-Regular-D5yQViql.woff) format("woff"),url(/assets/KaTeX_Script-Regular-C5JkGWo-.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size1;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size1-Regular-mCD8mA8B.woff2) format("woff2"),url(/assets/KaTeX_Size1-Regular-C195tn64.woff) format("woff"),url(/assets/KaTeX_Size1-Regular-Dbsnue_I.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size2;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size2-Regular-Dy4dx90m.woff2) format("woff2"),url(/assets/KaTeX_Size2-Regular-oD1tc_U0.woff) format("woff"),url(/assets/KaTeX_Size2-Regular-B7gKUWhC.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size3;font-style:normal;font-weight:400;src:url(data:font/woff2;base64,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) format("woff2"),url(/assets/KaTeX_Size3-Regular-CTq5MqoE.woff) format("woff"),url(/assets/KaTeX_Size3-Regular-DgpXs0kz.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Size4;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Size4-Regular-Dl5lxZxV.woff2) format("woff2"),url(/assets/KaTeX_Size4-Regular-BF-4gkZK.woff) format("woff"),url(/assets/KaTeX_Size4-Regular-DWFBv043.ttf) format("truetype")}@font-face{font-display:block;font-family:KaTeX_Typewriter;font-style:normal;font-weight:400;src:url(/assets/KaTeX_Typewriter-Regular-CO6r4hn1.woff2) format("woff2"),url(/assets/KaTeX_Typewriter-Regular-C0xS9mPB.woff) format("woff"),url(/assets/KaTeX_Typewriter-Regular-D3Ib7_Hf.ttf) format("truetype")}.katex{font: 1.21em KaTeX_Main,Times New Roman,serif;line-height:1.2;text-indent:0;text-rendering:auto}.katex *{-ms-high-contrast-adjust:none!important;border-color:currentColor}.katex .katex-version:after{content:"0.16.38"}.katex .katex-mathml{clip:rect(1px,1px,1px,1px);border:0;height:1px;overflow:hidden;padding:0;position:absolute;width:1px}.katex .katex-html>.newline{display:block}.katex .base{position:relative;white-space:nowrap;width:-webkit-min-content;width:-moz-min-content;width:min-content}.katex .base,.katex .strut{display:inline-block}.katex .textbf{font-weight:700}.katex .textit{font-style:italic}.katex .textrm{font-family:KaTeX_Main}.katex .textsf{font-family:KaTeX_SansSerif}.katex .texttt{font-family:KaTeX_Typewriter}.katex .mathnormal{font-family:KaTeX_Math;font-style:italic}.katex .mathit{font-family:KaTeX_Main;font-style:italic}.katex .mathrm{font-style:normal}.katex .mathbf{font-family:KaTeX_Main;font-weight:700}.katex .boldsymbol{font-family:KaTeX_Math;font-style:italic;font-weight:700}.katex .amsrm,.katex .mathbb,.katex .textbb{font-family:KaTeX_AMS}.katex .mathcal{font-family:KaTeX_Caligraphic}.katex .mathfrak,.katex .textfrak{font-family:KaTeX_Fraktur}.katex .mathboldfrak,.katex .textboldfrak{font-family:KaTeX_Fraktur;font-weight:700}.katex .mathtt{font-family:KaTeX_Typewriter}.katex .mathscr,.katex .textscr{font-family:KaTeX_Script}.katex .mathsf,.katex .textsf{font-family:KaTeX_SansSerif}.katex .mathboldsf,.katex .textboldsf{font-family:KaTeX_SansSerif;font-weight:700}.katex .mathitsf,.katex .mathsfit,.katex .textitsf{font-family:KaTeX_SansSerif;font-style:italic}.katex .mainrm{font-family:KaTeX_Main;font-style:normal}.katex .vlist-t{border-collapse:collapse;display:inline-table;table-layout:fixed}.katex .vlist-r{display:table-row}.katex .vlist{display:table-cell;position:relative;vertical-align:bottom}.katex .vlist>span{display:block;height:0;position:relative}.katex .vlist>span>span{display:inline-block}.katex .vlist>span>.pstrut{overflow:hidden;width:0}.katex .vlist-t2{margin-right:-2px}.katex .vlist-s{display:table-cell;font-size:1px;min-width:2px;vertical-align:bottom;width:2px}.katex .vbox{align-items:baseline;display:inline-flex;flex-direction:column}.katex .hbox{width:100%}.katex .hbox,.katex .thinbox{display:inline-flex;flex-direction:row}.katex .thinbox{max-width:0;width:0}.katex .msupsub{text-align:left}.katex .mfrac>span>span{text-align:center}.katex .mfrac .frac-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline,.katex .hline,.katex .mfrac .frac-line,.katex .overline .overline-line,.katex .rule,.katex .underline .underline-line{min-height:1px}.katex .mspace{display:inline-block}.katex .smash{display:inline;line-height:0}.katex .clap,.katex .llap,.katex .rlap{position:relative;width:0}.katex .clap>.inner,.katex .llap>.inner,.katex .rlap>.inner{position:absolute}.katex .clap>.fix,.katex .llap>.fix,.katex .rlap>.fix{display:inline-block}.katex .llap>.inner{right:0}.katex .clap>.inner,.katex .rlap>.inner{left:0}.katex .clap>.inner>span{margin-left:-50%;margin-right:50%}.katex .rule{border:0 solid;display:inline-block;position:relative}.katex .hline,.katex .overline .overline-line,.katex .underline .underline-line{border-bottom-style:solid;display:inline-block;width:100%}.katex .hdashline{border-bottom-style:dashed;display:inline-block;width:100%}.katex .sqrt>.root{margin-left:.2777777778em;margin-right:-.5555555556em}.katex .fontsize-ensurer.reset-size1.size1,.katex .sizing.reset-size1.size1{font-size:1em}.katex .fontsize-ensurer.reset-size1.size2,.katex .sizing.reset-size1.size2{font-size:1.2em}.katex .fontsize-ensurer.reset-size1.size3,.katex .sizing.reset-size1.size3{font-size:1.4em}.katex .fontsize-ensurer.reset-size1.size4,.katex .sizing.reset-size1.size4{font-size:1.6em}.katex .fontsize-ensurer.reset-size1.size5,.katex .sizing.reset-size1.size5{font-size:1.8em}.katex .fontsize-ensurer.reset-size1.size6,.katex .sizing.reset-size1.size6{font-size:2em}.katex .fontsize-ensurer.reset-size1.size7,.katex .sizing.reset-size1.size7{font-size:2.4em}.katex .fontsize-ensurer.reset-size1.size8,.katex .sizing.reset-size1.size8{font-size:2.88em}.katex .fontsize-ensurer.reset-size1.size9,.katex .sizing.reset-size1.size9{font-size:3.456em}.katex .fontsize-ensurer.reset-size1.size10,.katex .sizing.reset-size1.size10{font-size:4.148em}.katex .fontsize-ensurer.reset-size1.size11,.katex .sizing.reset-size1.size11{font-size:4.976em}.katex .fontsize-ensurer.reset-size2.size1,.katex .sizing.reset-size2.size1{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size2.size2,.katex .sizing.reset-size2.size2{font-size:1em}.katex .fontsize-ensurer.reset-size2.size3,.katex .sizing.reset-size2.size3{font-size:1.1666666667em}.katex .fontsize-ensurer.reset-size2.size4,.katex .sizing.reset-size2.size4{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size2.size5,.katex .sizing.reset-size2.size5{font-size:1.5em}.katex .fontsize-ensurer.reset-size2.size6,.katex .sizing.reset-size2.size6{font-size:1.6666666667em}.katex .fontsize-ensurer.reset-size2.size7,.katex .sizing.reset-size2.size7{font-size:2em}.katex .fontsize-ensurer.reset-size2.size8,.katex .sizing.reset-size2.size8{font-size:2.4em}.katex .fontsize-ensurer.reset-size2.size9,.katex .sizing.reset-size2.size9{font-size:2.88em}.katex .fontsize-ensurer.reset-size2.size10,.katex .sizing.reset-size2.size10{font-size:3.4566666667em}.katex .fontsize-ensurer.reset-size2.size11,.katex .sizing.reset-size2.size11{font-size:4.1466666667em}.katex .fontsize-ensurer.reset-size3.size1,.katex .sizing.reset-size3.size1{font-size:.7142857143em}.katex .fontsize-ensurer.reset-size3.size2,.katex .sizing.reset-size3.size2{font-size:.8571428571em}.katex .fontsize-ensurer.reset-size3.size3,.katex .sizing.reset-size3.size3{font-size:1em}.katex .fontsize-ensurer.reset-size3.size4,.katex .sizing.reset-size3.size4{font-size:1.1428571429em}.katex .fontsize-ensurer.reset-size3.size5,.katex .sizing.reset-size3.size5{font-size:1.2857142857em}.katex .fontsize-ensurer.reset-size3.size6,.katex .sizing.reset-size3.size6{font-size:1.4285714286em}.katex .fontsize-ensurer.reset-size3.size7,.katex .sizing.reset-size3.size7{font-size:1.7142857143em}.katex .fontsize-ensurer.reset-size3.size8,.katex .sizing.reset-size3.size8{font-size:2.0571428571em}.katex .fontsize-ensurer.reset-size3.size9,.katex .sizing.reset-size3.size9{font-size:2.4685714286em}.katex .fontsize-ensurer.reset-size3.size10,.katex .sizing.reset-size3.size10{font-size:2.9628571429em}.katex .fontsize-ensurer.reset-size3.size11,.katex .sizing.reset-size3.size11{font-size:3.5542857143em}.katex .fontsize-ensurer.reset-size4.size1,.katex .sizing.reset-size4.size1{font-size:.625em}.katex .fontsize-ensurer.reset-size4.size2,.katex .sizing.reset-size4.size2{font-size:.75em}.katex .fontsize-ensurer.reset-size4.size3,.katex .sizing.reset-size4.size3{font-size:.875em}.katex .fontsize-ensurer.reset-size4.size4,.katex .sizing.reset-size4.size4{font-size:1em}.katex .fontsize-ensurer.reset-size4.size5,.katex .sizing.reset-size4.size5{font-size:1.125em}.katex .fontsize-ensurer.reset-size4.size6,.katex .sizing.reset-size4.size6{font-size:1.25em}.katex .fontsize-ensurer.reset-size4.size7,.katex .sizing.reset-size4.size7{font-size:1.5em}.katex .fontsize-ensurer.reset-size4.size8,.katex .sizing.reset-size4.size8{font-size:1.8em}.katex .fontsize-ensurer.reset-size4.size9,.katex .sizing.reset-size4.size9{font-size:2.16em}.katex .fontsize-ensurer.reset-size4.size10,.katex .sizing.reset-size4.size10{font-size:2.5925em}.katex .fontsize-ensurer.reset-size4.size11,.katex .sizing.reset-size4.size11{font-size:3.11em}.katex .fontsize-ensurer.reset-size5.size1,.katex .sizing.reset-size5.size1{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size5.size2,.katex .sizing.reset-size5.size2{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size5.size3,.katex .sizing.reset-size5.size3{font-size:.7777777778em}.katex .fontsize-ensurer.reset-size5.size4,.katex .sizing.reset-size5.size4{font-size:.8888888889em}.katex .fontsize-ensurer.reset-size5.size5,.katex .sizing.reset-size5.size5{font-size:1em}.katex .fontsize-ensurer.reset-size5.size6,.katex .sizing.reset-size5.size6{font-size:1.1111111111em}.katex .fontsize-ensurer.reset-size5.size7,.katex .sizing.reset-size5.size7{font-size:1.3333333333em}.katex .fontsize-ensurer.reset-size5.size8,.katex .sizing.reset-size5.size8{font-size:1.6em}.katex .fontsize-ensurer.reset-size5.size9,.katex .sizing.reset-size5.size9{font-size:1.92em}.katex .fontsize-ensurer.reset-size5.size10,.katex .sizing.reset-size5.size10{font-size:2.3044444444em}.katex .fontsize-ensurer.reset-size5.size11,.katex .sizing.reset-size5.size11{font-size:2.7644444444em}.katex .fontsize-ensurer.reset-size6.size1,.katex .sizing.reset-size6.size1{font-size:.5em}.katex .fontsize-ensurer.reset-size6.size2,.katex .sizing.reset-size6.size2{font-size:.6em}.katex .fontsize-ensurer.reset-size6.size3,.katex .sizing.reset-size6.size3{font-size:.7em}.katex .fontsize-ensurer.reset-size6.size4,.katex .sizing.reset-size6.size4{font-size:.8em}.katex .fontsize-ensurer.reset-size6.size5,.katex .sizing.reset-size6.size5{font-size:.9em}.katex .fontsize-ensurer.reset-size6.size6,.katex .sizing.reset-size6.size6{font-size:1em}.katex .fontsize-ensurer.reset-size6.size7,.katex .sizing.reset-size6.size7{font-size:1.2em}.katex .fontsize-ensurer.reset-size6.size8,.katex .sizing.reset-size6.size8{font-size:1.44em}.katex .fontsize-ensurer.reset-size6.size9,.katex .sizing.reset-size6.size9{font-size:1.728em}.katex .fontsize-ensurer.reset-size6.size10,.katex .sizing.reset-size6.size10{font-size:2.074em}.katex .fontsize-ensurer.reset-size6.size11,.katex .sizing.reset-size6.size11{font-size:2.488em}.katex .fontsize-ensurer.reset-size7.size1,.katex .sizing.reset-size7.size1{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size7.size2,.katex .sizing.reset-size7.size2{font-size:.5em}.katex .fontsize-ensurer.reset-size7.size3,.katex .sizing.reset-size7.size3{font-size:.5833333333em}.katex .fontsize-ensurer.reset-size7.size4,.katex .sizing.reset-size7.size4{font-size:.6666666667em}.katex .fontsize-ensurer.reset-size7.size5,.katex .sizing.reset-size7.size5{font-size:.75em}.katex .fontsize-ensurer.reset-size7.size6,.katex .sizing.reset-size7.size6{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size7.size7,.katex .sizing.reset-size7.size7{font-size:1em}.katex .fontsize-ensurer.reset-size7.size8,.katex .sizing.reset-size7.size8{font-size:1.2em}.katex .fontsize-ensurer.reset-size7.size9,.katex .sizing.reset-size7.size9{font-size:1.44em}.katex .fontsize-ensurer.reset-size7.size10,.katex .sizing.reset-size7.size10{font-size:1.7283333333em}.katex .fontsize-ensurer.reset-size7.size11,.katex .sizing.reset-size7.size11{font-size:2.0733333333em}.katex .fontsize-ensurer.reset-size8.size1,.katex .sizing.reset-size8.size1{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size8.size2,.katex .sizing.reset-size8.size2{font-size:.4166666667em}.katex .fontsize-ensurer.reset-size8.size3,.katex .sizing.reset-size8.size3{font-size:.4861111111em}.katex .fontsize-ensurer.reset-size8.size4,.katex .sizing.reset-size8.size4{font-size:.5555555556em}.katex .fontsize-ensurer.reset-size8.size5,.katex .sizing.reset-size8.size5{font-size:.625em}.katex .fontsize-ensurer.reset-size8.size6,.katex .sizing.reset-size8.size6{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size8.size7,.katex .sizing.reset-size8.size7{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size8.size8,.katex .sizing.reset-size8.size8{font-size:1em}.katex .fontsize-ensurer.reset-size8.size9,.katex .sizing.reset-size8.size9{font-size:1.2em}.katex .fontsize-ensurer.reset-size8.size10,.katex .sizing.reset-size8.size10{font-size:1.4402777778em}.katex .fontsize-ensurer.reset-size8.size11,.katex .sizing.reset-size8.size11{font-size:1.7277777778em}.katex .fontsize-ensurer.reset-size9.size1,.katex .sizing.reset-size9.size1{font-size:.2893518519em}.katex .fontsize-ensurer.reset-size9.size2,.katex .sizing.reset-size9.size2{font-size:.3472222222em}.katex .fontsize-ensurer.reset-size9.size3,.katex .sizing.reset-size9.size3{font-size:.4050925926em}.katex .fontsize-ensurer.reset-size9.size4,.katex .sizing.reset-size9.size4{font-size:.462962963em}.katex .fontsize-ensurer.reset-size9.size5,.katex .sizing.reset-size9.size5{font-size:.5208333333em}.katex .fontsize-ensurer.reset-size9.size6,.katex .sizing.reset-size9.size6{font-size:.5787037037em}.katex .fontsize-ensurer.reset-size9.size7,.katex .sizing.reset-size9.size7{font-size:.6944444444em}.katex .fontsize-ensurer.reset-size9.size8,.katex .sizing.reset-size9.size8{font-size:.8333333333em}.katex .fontsize-ensurer.reset-size9.size9,.katex .sizing.reset-size9.size9{font-size:1em}.katex .fontsize-ensurer.reset-size9.size10,.katex .sizing.reset-size9.size10{font-size:1.2002314815em}.katex .fontsize-ensurer.reset-size9.size11,.katex .sizing.reset-size9.size11{font-size:1.4398148148em}.katex .fontsize-ensurer.reset-size10.size1,.katex .sizing.reset-size10.size1{font-size:.2410800386em}.katex .fontsize-ensurer.reset-size10.size2,.katex .sizing.reset-size10.size2{font-size:.2892960463em}.katex .fontsize-ensurer.reset-size10.size3,.katex .sizing.reset-size10.size3{font-size:.337512054em}.katex .fontsize-ensurer.reset-size10.size4,.katex .sizing.reset-size10.size4{font-size:.3857280617em}.katex .fontsize-ensurer.reset-size10.size5,.katex .sizing.reset-size10.size5{font-size:.4339440694em}.katex .fontsize-ensurer.reset-size10.size6,.katex .sizing.reset-size10.size6{font-size:.4821600771em}.katex .fontsize-ensurer.reset-size10.size7,.katex .sizing.reset-size10.size7{font-size:.5785920926em}.katex .fontsize-ensurer.reset-size10.size8,.katex .sizing.reset-size10.size8{font-size:.6943105111em}.katex .fontsize-ensurer.reset-size10.size9,.katex .sizing.reset-size10.size9{font-size:.8331726133em}.katex .fontsize-ensurer.reset-size10.size10,.katex .sizing.reset-size10.size10{font-size:1em}.katex .fontsize-ensurer.reset-size10.size11,.katex .sizing.reset-size10.size11{font-size:1.1996142719em}.katex .fontsize-ensurer.reset-size11.size1,.katex .sizing.reset-size11.size1{font-size:.2009646302em}.katex .fontsize-ensurer.reset-size11.size2,.katex .sizing.reset-size11.size2{font-size:.2411575563em}.katex .fontsize-ensurer.reset-size11.size3,.katex .sizing.reset-size11.size3{font-size:.2813504823em}.katex .fontsize-ensurer.reset-size11.size4,.katex .sizing.reset-size11.size4{font-size:.3215434084em}.katex .fontsize-ensurer.reset-size11.size5,.katex .sizing.reset-size11.size5{font-size:.3617363344em}.katex .fontsize-ensurer.reset-size11.size6,.katex .sizing.reset-size11.size6{font-size:.4019292605em}.katex .fontsize-ensurer.reset-size11.size7,.katex .sizing.reset-size11.size7{font-size:.4823151125em}.katex .fontsize-ensurer.reset-size11.size8,.katex .sizing.reset-size11.size8{font-size:.578778135em}.katex .fontsize-ensurer.reset-size11.size9,.katex .sizing.reset-size11.size9{font-size:.6945337621em}.katex .fontsize-ensurer.reset-size11.size10,.katex .sizing.reset-size11.size10{font-size:.8336012862em}.katex .fontsize-ensurer.reset-size11.size11,.katex .sizing.reset-size11.size11{font-size:1em}.katex .delimsizing.size1{font-family:KaTeX_Size1}.katex .delimsizing.size2{font-family:KaTeX_Size2}.katex .delimsizing.size3{font-family:KaTeX_Size3}.katex .delimsizing.size4{font-family:KaTeX_Size4}.katex .delimsizing.mult .delim-size1>span{font-family:KaTeX_Size1}.katex .delimsizing.mult .delim-size4>span{font-family:KaTeX_Size4}.katex .nulldelimiter{display:inline-block;width:.12em}.katex .delimcenter,.katex .op-symbol{position:relative}.katex .op-symbol.small-op{font-family:KaTeX_Size1}.katex .op-symbol.large-op{font-family:KaTeX_Size2}.katex .accent>.vlist-t,.katex .op-limits>.vlist-t{text-align:center}.katex .accent .accent-body{position:relative}.katex .accent .accent-body:not(.accent-full){width:0}.katex .overlay{display:block}.katex .mtable .vertical-separator{display:inline-block;min-width:1px}.katex .mtable .arraycolsep{display:inline-block}.katex .mtable .col-align-c>.vlist-t{text-align:center}.katex .mtable .col-align-l>.vlist-t{text-align:left}.katex .mtable .col-align-r>.vlist-t{text-align:right}.katex .svg-align{text-align:left}.katex svg{fill:currentColor;stroke:currentColor;display:block;height:inherit;position:absolute;width:100%}.katex svg path{stroke:none}.katex svg{fill-rule:nonzero;fill-opacity:1;stroke-width:1;stroke-linecap:butt;stroke-linejoin:miter;stroke-miterlimit:4;stroke-dasharray:none;stroke-dashoffset:0;stroke-opacity:1}.katex img{border-style:none;max-height:none;max-width:none;min-height:0;min-width:0}.katex .stretchy{display:block;overflow:hidden;position:relative;width:100%}.katex .stretchy:after,.katex .stretchy:before{content:""}.katex .hide-tail{overflow:hidden;position:relative;width:100%}.katex .halfarrow-left{left:0;overflow:hidden;position:absolute;width:50.2%}.katex .halfarrow-right{overflow:hidden;position:absolute;right:0;width:50.2%}.katex .brace-left{left:0;overflow:hidden;position:absolute;width:25.1%}.katex .brace-center{left:25%;overflow:hidden;position:absolute;width:50%}.katex .brace-right{overflow:hidden;position:absolute;right:0;width:25.1%}.katex .x-arrow-pad{padding:0 .5em}.katex .cd-arrow-pad{padding:0 .55556em 0 .27778em}.katex .mover,.katex .munder,.katex .x-arrow{text-align:center}.katex .boxpad{padding:0 .3em}.katex .fbox,.katex .fcolorbox{border:.04em solid;box-sizing:border-box}.katex .cancel-pad{padding:0 .2em}.katex .cancel-lap{margin-left:-.2em;margin-right:-.2em}.katex .sout{border-bottom-style:solid;border-bottom-width:.08em}.katex .angl{border-right:.049em solid;border-top:.049em solid;box-sizing:border-box;margin-right:.03889em}.katex .anglpad{padding:0 .03889em}.katex .eqn-num:before{content:"(" counter(katexEqnNo) ")";counter-increment:katexEqnNo}.katex .mml-eqn-num:before{content:"(" counter(mmlEqnNo) ")";counter-increment:mmlEqnNo}.katex .mtr-glue{width:50%}.katex .cd-vert-arrow{display:inline-block;position:relative}.katex .cd-label-left{display:inline-block;position:absolute;right:calc(50% + .3em);text-align:left}.katex .cd-label-right{display:inline-block;left:calc(50% + .3em);position:absolute;text-align:right}.katex-display{display:block;margin:1em 0;text-align:center}.katex-display>.katex{display:block;text-align:center;white-space:nowrap}.katex-display>.katex>.katex-html{display:block;position:relative}.katex-display>.katex>.katex-html>.tag{position:absolute;right:0}.katex-display.leqno>.katex>.katex-html>.tag{left:0;right:auto}.katex-display.fleqn>.katex{padding-left:2em;text-align:left}body{counter-reset:katexEqnNo mmlEqnNo}.comunidad-container{max-width:var(--max-width);margin:0 auto;padding:var(--space-3xl) 1rem 2rem 1rem;display:flex;flex-direction:column;gap:2rem}.comunidad-header{padding:2.5rem;border-radius:20px;background:var(--color-bg-card);border:1px solid rgba(0,0,0,.05);box-shadow:var(--shadow-sm)}.comunidad-intro{display:flex;gap:2rem;align-items:flex-start}.intro-icon{font-size:5rem;line-height:1;filter:drop-shadow(0 4px 10px rgba(0,0,0,.3));animation:float 3s ease-in-out infinite}.intro-text h1{font-size:2.5rem;margin-bottom:.5rem;color:var(--color-primary);font-weight:800}.intro-subtitle{font-size:1.2rem;color:var(--color-text-dim);margin-bottom:1.5rem}.intro-guidelines{background:transparent;border:2px dashed var(--color-primary-light);color:var(--color-text-main);padding:1.5rem;border-radius:12px}.intro-guidelines strong{color:var(--color-primary);font-size:1.15rem;font-weight:700}.intro-guidelines ul{list-style:none;padding:0;margin:1rem 0;display:flex;flex-direction:column;gap:.8rem}.intro-guidelines li{display:flex;align-items:center;gap:.8rem;color:var(--color-text-main);font-weight:500}.inline-icon{color:var(--color-accent);font-size:1.2rem}.intro-alert{margin-top:1rem;padding-top:1rem;border-top:1px dashed rgba(0,0,0,.1);color:var(--color-highlight);font-weight:500;font-size:.95rem}.comunidad-content{display:grid;grid-template-columns:280px 1fr;gap:2rem}.comunidad-sidebar{padding:1.5rem;border-radius:16px;height:fit-content}.create-post-btn{width:100%;margin-bottom:2rem;display:flex;align-items:center;justify-content:center;gap:.5rem;font-size:1.1rem}.sidebar-section h3{font-size:1.2rem;margin-bottom:1rem;color:var(--color-text-main)}.topic-list{list-style:none;padding:0;margin:0}.topic-list li{display:flex;justify-content:space-between;padding:.8rem 0;border-bottom:1px solid rgba(0,0,0,.05);color:var(--color-text-muted);cursor:pointer;transition:color .2s}.topic-list li:hover{color:var(--color-secondary)}.topic-tag{font-weight:500}.topic-count{background:var(--color-bg-elevated);color:var(--color-text-muted);padding:.2rem .6rem;border-radius:12px;font-size:.85rem}.comunidad-feed{padding:1.5rem;border-radius:16px}.feed-controls{margin-bottom:1.5rem!important}.filter-select{padding:.8rem 2.5rem .8rem 1.2rem;background:var(--color-bg-card);border:1px solid rgba(0,0,0,.1);border-radius:12px;color:var(--color-text-main);outline:none;font-family:inherit;cursor:pointer;box-shadow:var(--shadow-sm);appearance:none;background-image:url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");background-repeat:no-repeat;background-position:right 1rem center;background-size:1em}.posts-list{display:flex;flex-direction:column;gap:1.5rem}.post-card{display:flex;gap:1.5rem;padding:1.5rem;background:var(--color-bg-card);border:1px solid rgba(0,0,0,.05);border-radius:14px;transition:all .2s;cursor:pointer;box-shadow:var(--shadow-sm)}.post-card:hover{background:var(--color-bg-card);border-color:#0000001a;transform:translateY(-2px);box-shadow:var(--shadow-md)}.post-card.solved{border-left:4px solid #10b981}.post-avatar{width:48px;height:48px;background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-accent) 100%);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:700;color:#fff;flex-shrink:0}.profe-avatar{background:linear-gradient(135deg,#fbbf24,#f59e0b);color:#000}.post-main{flex:1}.post-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:.5rem}.post-title{font-size:1.2rem;color:var(--color-primary);margin:0;margin-right:1rem;line-height:1.4}.profe-badge{background:#f59e0b1a;color:#fbbf24}.profe-name{color:#fbbf24!important;font-weight:600}.post-meta{display:flex;gap:1rem;align-items:center;font-size:.9rem;color:var(--color-text-muted);margin-bottom:1rem;flex-wrap:wrap}.post-topic-tag{background:var(--color-bg-elevated);padding:.2rem .6rem;border-radius:6px;font-size:.8rem;color:var(--color-text-muted);border:1px solid rgba(0,0,0,.05)}.general-tag{background:#f59e0b33;color:#fbbf24}.post-preview{color:var(--color-text-muted);line-height:1.5;margin-bottom:1.5rem;display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;white-space:pre-wrap;word-break:break-word}.post-actions{display:flex;gap:1.5rem;align-items:center}.action-btn{display:flex;align-items:center;gap:.5rem;background:none;border:none;color:var(--color-text-muted);font-size:.95rem;cursor:pointer;padding:0;transition:color .2s;font-family:inherit}.action-btn:hover,.action-btn.liked{color:var(--color-primary)}.action-tag{display:flex;align-items:center;gap:.5rem;color:var(--color-accent);font-size:.9rem;margin-left:auto}@keyframes float{0%{transform:translateY(0)}50%{transform:translateY(-10px)}to{transform:translateY(0)}}@media(max-width:900px){.comunidad-content{grid-template-columns:1fr}.comunidad-intro{flex-direction:column;align-items:center;text-align:center}.intro-guidelines{text-align:left}}.modal-overlay{position:fixed;inset:0;background-color:#05050a99;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;justify-content:center;align-items:center;z-index:9999;padding:1rem;animation:fadeIn .2s ease-out}.modal-content{background:#f5f0e6;border:1px solid rgba(0,0,0,.08);box-shadow:var(--shadow-lg);border-radius:16px;width:100%;max-width:600px;max-height:90vh;overflow-y:auto;animation:slideUp .3s ease-out}.modal-content::-webkit-scrollbar{width:8px}.modal-content::-webkit-scrollbar-track{background:#0000001a;border-radius:8px}.modal-content::-webkit-scrollbar-thumb{background:#fff3;border-radius:8px}.modal-content::-webkit-scrollbar-thumb:hover{background:#ffffff4d}.modal-header{display:flex;justify-content:space-between;align-items:center;padding:1.5rem 2rem;border-bottom:1px solid rgba(0,0,0,.05)}.modal-header h2{margin:0;font-size:1.5rem;color:var(--color-primary)}.close-btn{background:var(--color-bg-main);border:2px solid rgba(0,0,0,.05);color:var(--color-text-muted);cursor:pointer;padding:.5rem;border-radius:50%;display:flex;align-items:center;justify-content:center;transition:all .2s}.close-btn:hover{background:var(--color-primary-light);color:var(--color-text-inverse)}.create-post-form{padding:2rem;display:flex;flex-direction:column;gap:1.5rem}.form-group{display:flex;flex-direction:column;gap:.5rem}.form-group label{font-size:1.05rem;font-weight:800;color:#111827;margin-bottom:.3rem;letter-spacing:-.01em}.form-group input,.form-group select,.form-group textarea{background:#fff;border:1px solid var(--color-primary);border-radius:10px;padding:.8rem 1rem;color:#111827;font-family:inherit;font-size:1rem;font-weight:500;transition:all .2s}.form-group input:focus,.form-group select:focus,.form-group textarea:focus{outline:none;background:#fff;box-shadow:0 0 0 3px #22313f1a}.form-group select{cursor:pointer;appearance:none;background-image:url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");background-repeat:no-repeat;background-position:right 1rem center;background-size:1em}.form-group select option{background-color:var(--color-bg-card);color:var(--color-text-main)}.form-group textarea{resize:vertical;min-height:100px}.upload-placeholder{border:1px solid var(--color-primary);background:#fff;border-radius:12px;padding:2rem;text-align:center;transition:all .2s}.upload-placeholder:hover{background:#fff}.upload-label{display:flex;flex-direction:column;align-items:center;gap:.8rem;color:var(--color-text-muted);cursor:pointer;margin:0!important}.upload-label:hover{color:var(--color-primary)}.image-preview-container{position:relative;border-radius:12px;overflow:hidden;border:1px solid var(--color-primary);background:#fff;display:flex;flex-direction:column}.image-preview{width:100%;max-height:250px;object-fit:contain;display:block}.remove-image-btn{padding:.8rem;background:#e639460d;border:none;border-top:1px solid rgba(0,0,0,.05);color:var(--color-danger);cursor:pointer;display:flex;align-items:center;justify-content:center;gap:.5rem;font-weight:600;transition:all .2s}.remove-image-btn:hover{background:#e6394626}.modal-footer{display:flex;justify-content:flex-end;gap:1rem;margin-top:1rem;padding-top:1.5rem;border-top:1px solid rgba(0,0,0,.05)}.btn-outline{background:#fff;border:1px solid var(--color-primary);color:var(--color-primary);padding:.8rem 1.5rem;border-radius:8px;font-weight:600;cursor:pointer;transition:all .2s}.btn-outline:hover{background:#f1f5f9}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes slideUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}@media(max-width:600px){.modal-content{max-height:100vh;border-radius:0}.modal-overlay{padding:0}.modal-footer{flex-direction:column-reverse}.modal-footer .btn{width:100%}}.post-detail-container{max-width:var(--max-width);margin:0 auto;padding:var(--space-3xl) 1rem 2rem 1rem;display:flex;flex-direction:column;gap:1.5rem}.back-btn{display:flex;align-items:center;gap:.5rem;background:none;border:none;color:var(--color-text-dim);font-size:1rem;cursor:pointer;width:fit-content;padding:.5rem 0;transition:color .2s;font-weight:500}.back-btn:hover{color:var(--color-primary)}.post-detail-content{border-radius:16px;background:#fff;border:1px solid rgba(0,0,0,.1);overflow:hidden;box-shadow:var(--shadow-md)}.main-post{padding:2.5rem}.post-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:2rem}.post-author-info{display:flex;gap:1.5rem;align-items:center}.post-avatar{width:48px;height:48px;background:#334155;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:1.5rem;font-weight:700;color:#fff;flex-shrink:0}.profe-avatar{background:#f59e0b;color:#fff}.post-avatar.large{width:64px;height:64px;font-size:2rem}.post-title-large{font-size:1.8rem;color:var(--color-text-main);margin:0 0 .5rem}.post-meta{font-size:.95rem;color:var(--color-text-main);display:flex;gap:1rem;align-items:center}.post-topic-tag{background:#f1f5f9;padding:.2rem .6rem;border-radius:6px;font-size:.85rem;color:var(--color-text-main);border:1px solid rgba(0,0,0,.1)}.solved-badge{display:flex;align-items:center;gap:.3rem;background:#10b9811a;color:#10b981;padding:.3rem .6rem;border-radius:8px;font-size:.85rem;font-weight:700}.solved-badge.large{padding:.5rem 1rem;font-size:1rem}.post-body{font-size:1.1rem;line-height:1.6;color:var(--color-text-muted);margin-bottom:2rem;white-space:pre-wrap;word-break:break-word}.post-image-placeholder{margin-top:1.5rem;background:var(--color-bg-elevated);border:1px dashed rgba(0,0,0,.1);border-radius:12px;height:250px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:1rem;color:var(--color-text-muted)}.post-actions.border-top{padding-top:1.5rem;border-top:1px solid rgba(0,0,0,.05)}.replies-section{background:#fdfbf7;padding:2.5rem;border-top:1px solid rgba(0,0,0,.05);box-shadow:inset 0 4px 6px -1px #00000005}.replies-section h3{margin:0 0 2rem;color:var(--color-text-main);font-size:1.3rem}.replies-list{display:flex;flex-direction:column;gap:1.5rem;margin-bottom:3rem}.reply-card{display:flex;gap:1.2rem;padding:1.5rem;background:#fff;border:1px solid rgba(0,0,0,.12);border-radius:12px;box-shadow:0 4px 6px -1px #0000000d}.reply-card.profe-reply{background:#fffbeb;border-color:#fcd34d}.post-avatar.small{width:40px;height:40px;font-size:1.2rem}.reply-main{flex:1}.reply-header{display:flex;align-items:center;gap:.8rem;margin-bottom:.5rem}.reply-author{font-weight:600;color:var(--color-text-main)}.profe-badge{background:#f59e0b26;color:#d97706}.profe-name{color:#d97706!important;font-weight:700}.profe-badge.small{background:#fbbf24;color:#000;padding:.1rem .4rem;border-radius:4px;font-size:.75rem;font-weight:700}.reply-time{color:var(--color-text-muted);font-size:.85rem}.reply-content{color:var(--color-text-main);line-height:1.6;margin-bottom:1.2rem;white-space:pre-wrap;word-break:break-word}.reply-actions{display:flex;justify-content:flex-start;gap:1rem;align-items:center;width:100%}.action-btn.small{font-size:.85rem}.new-reply-form{display:flex;gap:1.2rem;background:#fff;padding:1.5rem;border-radius:12px;border:1px solid rgba(0,0,0,.12);box-shadow:0 4px 6px -1px #0000000d}.reply-input-group{flex:1;display:flex;flex-direction:column;gap:1rem}.reply-input-group textarea{width:100%;background:#f8fafc;border:1px solid rgba(0,0,0,.08);border-radius:8px;padding:1rem;color:var(--color-text-main);font-family:inherit;resize:vertical;transition:all .2s}.reply-input-group textarea:focus{outline:none;border-color:var(--color-primary);background:var(--color-bg-card);box-shadow:0 0 0 2px #1b263b1a}.reply-form-actions{display:flex;justify-content:space-between;align-items:center}.btn-icon{background:none;border:none;color:var(--color-text-muted);padding:.5rem;cursor:pointer;border-radius:8px;transition:all .2s}.btn-icon:hover{color:var(--color-primary);background:#0000000d}@media(max-width:768px){.post-header{flex-direction:column;gap:1rem}.main-post,.replies-section{padding:1.5rem}}.material-page{min-height:calc(100vh - 80px);padding-top:calc(var(--space-3xl) + 60px)}.page-header{margin-bottom:var(--space-lg)}.mx-auto{margin-left:auto;margin-right:auto}.mr-1{margin-right:.25rem}.mt-20{margin-top:1.5rem}.p-6{padding:.75rem 1rem}.rounded-lg{border-radius:var(--border-radius-lg)}.text-gray-600{color:var(--color-text-muted)}.text-sm{font-size:.875rem;text-align:justify}.material-tabs{display:flex;align-items:center;gap:var(--space-sm);overflow-x:auto;padding:var(--space-sm);margin-bottom:var(--space-xl);border-radius:var(--border-radius-full)}.material-tabs::-webkit-scrollbar{height:0}.material-tab-btn{background-color:transparent;color:var(--color-text-muted);padding:10px 20px;border-radius:var(--border-radius-full);font-size:.95rem;font-weight:500;white-space:nowrap;transition:all var(--transition-fast)}.material-tab-btn:hover{background-color:#1b263b0d;color:var(--color-primary)}.material-tab-btn.active{background-color:var(--color-primary);color:var(--color-bg-main);box-shadow:0 4px 6px #0000001a}.productos-grid{display:grid;grid-template-columns:1fr;gap:var(--space-xl)}@media(min-width:768px){.productos-grid{grid-template-columns:repeat(2,1fr)}}@media(min-width:1024px){.productos-grid{grid-template-columns:repeat(3,1fr)}}.producto-card{display:flex;flex-direction:column;padding:0;overflow:hidden;height:100%}.producto-img-container{position:relative;width:100%;height:250px;background-color:#fff;display:flex;align-items:center;justify-content:center;padding:var(--space-md);border-bottom:1px solid rgba(0,0,0,.05)}.producto-badge{position:absolute;top:1rem;left:1rem;background-color:var(--color-accent);color:#fff;padding:4px 10px;border-radius:4px;font-size:.75rem;font-weight:600;text-transform:uppercase;display:flex;align-items:center;box-shadow:0 2px 4px #0000001a;z-index:10}.producto-img{max-width:100%;max-height:100%;object-fit:contain;mix-blend-mode:multiply}.producto-info{padding:var(--space-lg);display:flex;flex-direction:column;flex-grow:1}.producto-titulo{font-size:1.05rem;margin-bottom:var(--space-xs, 4px);color:var(--color-primary-dark)}.producto-para{font-size:.78rem;color:var(--color-primary-light);margin-bottom:var(--space-sm);background-color:#415a771a;padding:3px 7px;border-radius:4px;display:inline-block}.producto-desc{font-size:.85rem;color:var(--color-text-main);flex-grow:1;margin-bottom:var(--space-md);line-height:1.5;text-align:justify}.producto-footer{display:flex;justify-content:space-between;align-items:center;border-top:1px solid rgba(0,0,0,.05);padding-top:var(--space-md);margin-top:auto;gap:1rem}.producto-precio{font-size:1.1rem;font-weight:700;color:var(--color-text-muted);white-space:nowrap}.btn-amazon{background-color:#f3a847;color:#111;display:flex;gap:6px;align-items:center;white-space:nowrap;padding:8px 16px;font-size:.95rem;flex-shrink:0}.btn-amazon:hover{background-color:#e39a37;box-shadow:0 0 10px #f3a84766;color:#111}:root{--color-primary: #1B263B;--color-primary-dark: #0D1B2A;--color-primary-light: #415A77;--color-accent: #e07a5f;--color-accent-hover: #c9674f;--color-highlight: #778DA9;--color-danger: #e63946;--color-bg-main: #FDF8E1;--color-bg-card: #FFFFFF;--color-bg-elevated: #F4EED6;--color-text-main: #05050A;--color-text-muted: #1E293B;--color-text-inverse: #FFFFFF;--font-heading: "Outfit", sans-serif;--font-body: "Inter", sans-serif;--max-width: 1200px;--space-xs: .25rem;--space-sm: .5rem;--space-md: 1rem;--space-lg: 1.5rem;--space-xl: 2rem;--space-2xl: 3rem;--space-3xl: 5rem;--shadow-sm: 0 2px 4px rgba(0, 0, 0, .05);--shadow-md: 0 4px 8px rgba(0, 0, 0, .08);--shadow-lg: 0 8px 16px rgba(0, 0, 0, .12);--shadow-glow: 0 0 15px rgba(224, 122, 95, .3);--border-radius-sm: 4px;--border-radius-md: 8px;--border-radius-lg: 12px;--border-radius-xl: 20px;--border-radius-full: 9999px;--transition-fast: .15s ease-in-out;--transition-normal: .3s ease-in-out;--transition-slow: .5s cubic-bezier(.4, 0, .2, 1)}*{box-sizing:border-box;margin:0;padding:0}html,body{width:100%;min-height:100vh;margin:0;padding:0;overflow-x:hidden;font-family:var(--font-body);background-color:var(--color-bg-main);color:var(--color-text-main);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body:before{content:"";position:fixed;top:0;left:0;width:100%;height:100%;background-image:linear-gradient(rgba(0,0,0,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(0,0,0,.03) 1px,transparent 1px);background-size:40px 40px;z-index:-1;pointer-events:none}h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);font-weight:700;line-height:1.2;margin-bottom:var(--space-md);color:#120575}a{color:var(--color-text-main);text-decoration:none;transition:color var(--transition-fast)}a:hover{color:var(--color-accent)}button{font-family:var(--font-heading);cursor:pointer;border:none;outline:none}.container{max-width:var(--max-width);margin:0 auto;padding:0 var(--space-md)}@media(min-width:768px){.container{padding:0 var(--space-xl)}}.card{background:var(--color-bg-card);border-radius:var(--border-radius-lg);padding:var(--space-lg);box-shadow:var(--shadow-md);border:1px solid rgba(0,0,0,.05);transition:transform var(--transition-normal),box-shadow var(--transition-normal)}.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg),var(--shadow-glow);border-color:#e07a5f33}.glass{background:#fff9;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(0,0,0,.08)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:var(--space-sm);padding:var(--space-sm) var(--space-lg);border-radius:var(--border-radius-full);font-weight:600;font-size:1rem;transition:all var(--transition-normal);text-decoration:none;text-align:center}.btn-primary{background-color:var(--color-accent);color:var(--color-text-inverse)}.btn-primary:hover{background-color:var(--color-accent-hover);transform:scale(1.05);box-shadow:var(--shadow-glow);color:var(--color-text-inverse)}.btn-secondary{background-color:transparent;color:var(--color-text-main);border:2px solid var(--color-primary-light)}.btn-secondary:hover{background-color:var(--color-primary);border-color:var(--color-primary);color:var(--color-text-inverse)}.section-padding{padding:var(--space-3xl) 0}.text-gradient{color:#120575}.text-center{text-align:center}::-webkit-scrollbar{width:8px}::-webkit-scrollbar-track{background:var(--color-bg-main)}::-webkit-scrollbar-thumb{background:var(--color-primary);border-radius:var(--border-radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--color-primary-light)}.controls-bar{display:flex;flex-direction:column;gap:var(--space-md);padding:var(--space-md);border-radius:var(--border-radius-lg);margin-bottom:var(--space-2xl)}@media(min-width:768px){.controls-bar{flex-direction:row;align-items:center;justify-content:space-between}}.search-input-wrapper{position:relative;flex:1;max-width:100%}@media(min-width:768px){.search-input-wrapper{max-width:400px}}.search-icon{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--color-text-muted);font-size:1.2rem}.search-input{width:100%;padding:12px 16px 12px 48px;background-color:#fff;border:1px solid rgba(0,0,0,.12);border-radius:var(--border-radius-full);color:var(--color-text-main);font-size:1rem;font-family:var(--font-body);transition:all var(--transition-fast);box-shadow:inset 0 2px 4px #00000005}.search-input:focus{outline:none;background-color:#fff;color:var(--color-text-main);border-color:var(--color-accent);box-shadow:0 0 0 2px #e07a5f33,inset 0 2px 4px #00000005}
