:root{--bg: #000000;--bg-card: #000000;--bg-hover: #080808;--bg-modal: #000000;--bg-input: #202327;--bg-right: #16181C;--border: #2F3336;--text: #E7E9EA;--text-muted: #71767B;--text-light: #536471;--blue: #1D9BF0;--blue-hover: #1A8CD8;--blue-bg: rgba(29,155,240,.12);--red: #F4212E;--red-bg: rgba(244,33,46,.12);--green: #00BA7C;--green-bg: rgba(0,186,124,.12);--sidebar-w: 275px;--right-w: 350px;--radius: 16px;--radius-full: 999px}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth}body{font-family:Inter,-apple-system,sans-serif;background:var(--bg);color:var(--text);min-height:100vh}.app-shell{display:grid;grid-template-columns:var(--sidebar-w) minmax(0,600px) var(--right-w);min-height:100vh;max-width:1280px;margin:0 auto}.sidebar-left{position:sticky;top:0;height:100vh;display:flex;flex-direction:column;align-items:flex-start;padding:4px 12px 20px;border-right:1px solid var(--border);overflow-y:auto}.logo{display:flex;align-items:center;justify-content:center;width:52px;height:52px;border-radius:var(--radius-full);text-decoration:none;margin-bottom:4px;transition:background .2s}.logo:hover{background:#e7e9ea1a}.logo-icon{font-size:1.8rem;color:var(--text);line-height:1}.sidenav{display:flex;flex-direction:column;gap:6px;width:100%;margin-bottom:16px;position:relative}.sidenav-item{position:relative;display:flex;align-items:center;gap:18px;padding:12px 18px;border-radius:var(--radius-full);border:1px solid transparent;background:transparent;cursor:pointer;font-family:Inter,sans-serif;font-size:1.08rem;font-weight:500;color:var(--text-muted);transition:background-color .25s cubic-bezier(.16,1,.3,1),border-color .25s cubic-bezier(.16,1,.3,1),color .25s cubic-bezier(.16,1,.3,1),transform .25s cubic-bezier(.16,1,.3,1),box-shadow .25s cubic-bezier(.16,1,.3,1);width:100%;text-align:left;outline:none;-webkit-user-select:none;user-select:none;overflow:hidden}.sidenav-item:before{content:"";position:absolute;left:4px;top:50%;width:4px;height:22px;background:var(--blue);border-radius:4px;transform:translateY(-50%) scaleY(0);opacity:0;transition:transform .28s cubic-bezier(.34,1.56,.64,1),opacity .25s ease,box-shadow .28s ease}.sidenav-item:hover{background:#ffffff0d;color:var(--text);transform:translate(3px)}.sidenav-item:hover .nav-icon svg{fill:var(--text);transform:scale(1.08)}.sidenav-item.active{font-weight:700;color:#fff;background:#1d9bf01f;border-color:#1d9bf04d;box-shadow:0 4px 16px #1d9bf01f,inset 0 0 12px #1d9bf00f;transform:translate(4px);animation:navItemPop .32s cubic-bezier(.16,1,.3,1)}.sidenav-item.active:before{transform:translateY(-50%) scaleY(1);opacity:1;box-shadow:0 0 10px #1d9bf0d9}@keyframes navItemPop{0%{transform:scale(.96) translate(0)}50%{transform:scale(1.02) translate(6px)}to{transform:scale(1) translate(4px)}}.nav-icon{display:flex;align-items:center;justify-content:center;width:26px;height:26px;flex-shrink:0}.nav-icon svg{width:26px;height:26px;fill:var(--text-muted);transition:fill .25s ease,transform .28s cubic-bezier(.34,1.56,.64,1),filter .25s ease}.sidenav-item.active .nav-icon svg{fill:var(--blue);transform:scale(1.14);filter:drop-shadow(0 0 6px rgba(29,155,240,.55))}.nav-label{font-size:1.05rem;transition:color .25s ease,transform .25s ease}.sidenav-item.active .nav-label{color:#fff;font-weight:700}.btn-post-big{display:flex;align-items:center;justify-content:center;gap:10px;width:calc(100% - 16px);margin:4px 8px;padding:16px;background:var(--blue);color:#fff;border:none;border-radius:var(--radius-full);font-family:Inter,sans-serif;font-size:1rem;font-weight:700;cursor:pointer;transition:background .2s,transform .1s}.btn-post-big:hover{background:var(--blue-hover)}.btn-post-big:active{transform:scale(.98)}.btn-post-big-icon{font-size:1.3rem}.sidebar-session{margin-top:auto;display:flex;align-items:center;gap:12px;padding:12px 16px;border-radius:var(--radius-full);cursor:pointer;width:100%;transition:background .2s}.sidebar-session:hover{background:#e7e9ea1a}.session-avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--blue),#8B5CF6);color:#fff;font-weight:700;font-size:1rem;display:flex;align-items:center;justify-content:center;flex-shrink:0}.session-info{flex:1;min-width:0}.session-info strong{display:block;font-size:.9rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.session-info small{color:var(--text-muted);font-size:.8rem}.session-menu-btn{background:none;border:none;color:var(--text);font-size:1.1rem;cursor:pointer;letter-spacing:.1em;padding:4px}.sidebar-no-session{margin-top:auto;width:100%;padding:8px}.btn-signin,.btn-register-right{width:100%;padding:14px;border-radius:var(--radius-full);border:1.5px solid var(--border);background:none;color:var(--text);font-family:Inter,sans-serif;font-size:.95rem;font-weight:700;cursor:pointer;transition:background .2s}.btn-signin:hover{background:#e7e9ea1a}.btn-register-right{background:var(--blue);border-color:var(--blue);color:#fff;margin-top:10px}.btn-register-right:hover{background:var(--blue-hover)}.feed-center{border-right:1px solid var(--border);min-height:100vh}.tab-pane{display:none}.tab-pane.active{display:block;animation:tabFadeIn .26s cubic-bezier(.16,1,.3,1) both}@keyframes tabFadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}.feed-header{position:sticky;top:0;z-index:10;background:#000000d9;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);padding:14px 16px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--border)}.feed-header h1{font-size:1.1rem;font-weight:800}.icon-btn{display:flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:50%;border:none;background:none;cursor:pointer;color:var(--text);transition:background .2s}.icon-btn:hover{background:#e7e9ea1a}.icon-btn svg{width:20px;height:20px;fill:var(--text)}.feed-divider{height:1px;background:var(--border)}.feed-composer{display:flex;gap:12px;padding:12px 16px;border-bottom:1px solid var(--border);cursor:text}.composer-avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--blue),#8B5CF6);color:#fff;font-weight:700;font-size:.95rem;display:flex;align-items:center;justify-content:center;flex-shrink:0;cursor:default}.composer-body{flex:1;min-width:0}.composer-placeholder{padding:10px 0;font-size:1.15rem;color:var(--text-muted);cursor:pointer}.composer-input{width:100%;background:none;border:none;outline:none;color:var(--text);font-family:Inter,sans-serif;font-size:1.15rem;resize:none;line-height:1.5;padding:10px 0}.composer-actions{display:flex;align-items:center;justify-content:space-between;padding-top:10px;border-top:1px solid var(--border);margin-top:8px}.composer-actions-left{display:flex;gap:4px}.composer-actions-right{display:flex;align-items:center;gap:10px}.composer-icon-btn{background:none;border:none;width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;font-size:1rem;transition:background .2s;color:var(--blue)}.composer-icon-btn:hover{background:var(--blue-bg)}.composer-user-select{background:none;border:1.5px solid var(--border);border-radius:var(--radius-full);color:var(--text);font-family:Inter,sans-serif;font-size:.78rem;padding:6px 12px;cursor:pointer;outline:none;max-width:160px;transition:border-color .2s}.composer-user-select option{background:#1d2226;color:var(--text)}.composer-user-select:focus{border-color:var(--blue)}.composer-user-select.wide{max-width:100%;width:100%;margin-bottom:10px}.btn-post-submit{background:var(--blue);color:#fff;border:none;border-radius:var(--radius-full);padding:8px 18px;font-family:Inter,sans-serif;font-size:.9rem;font-weight:700;cursor:pointer;transition:background .2s,transform .1s;white-space:nowrap}.btn-post-submit:hover{background:var(--blue-hover)}.btn-post-submit:active{transform:scale(.97)}.btn-post-submit.full{width:100%;padding:14px;font-size:.95rem;margin-top:12px}.post-card{display:flex;gap:12px;padding:12px 16px;border-bottom:1px solid var(--border);transition:background .15s;cursor:pointer;text-decoration:none}.post-card:hover{background:var(--bg-hover)}.post-avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,var(--blue),#8B5CF6);color:#fff;font-weight:700;font-size:.95rem;display:flex;align-items:center;justify-content:center;flex-shrink:0}.post-body{flex:1;min-width:0}.post-meta{display:flex;align-items:baseline;gap:6px;flex-wrap:wrap;margin-bottom:2px}.post-author-name{font-weight:700;font-size:.95rem}.post-author-username{color:var(--text-muted);font-size:.88rem}.post-dot{color:var(--text-light)}.post-time{color:var(--text-muted);font-size:.85rem}.post-content{font-size:.97rem;line-height:1.6;color:var(--text);margin:4px 0 10px;word-break:break-word;white-space:pre-wrap}.post-actions{display:flex;align-items:center;gap:4px;margin-top:6px}.post-action-btn{display:flex;align-items:center;gap:6px;background:none;border:none;color:var(--text-muted);font-family:Inter,sans-serif;font-size:.82rem;cursor:pointer;padding:6px 10px;border-radius:var(--radius-full);transition:all .2s;min-width:60px}.post-action-btn svg{width:18px;height:18px;fill:currentColor;flex-shrink:0}.post-action-btn.comment-btn:hover{background:var(--blue-bg);color:var(--blue)}.post-action-btn.like-btn:hover,.post-action-btn.delete-btn:hover{background:var(--red-bg);color:var(--red)}.post-action-btn.like-btn.active{color:var(--red)}.post-action-btn.like-btn.pop{animation:heart-pop .3s ease}@keyframes heart-pop{0%{transform:scale(1)}40%{transform:scale(1.35)}70%{transform:scale(.9)}to{transform:scale(1)}}.post-spacer{flex:1}.explore-search{padding:12px 16px;border-bottom:1px solid var(--border)}.search-box{display:flex;align-items:center;gap:12px;background:var(--bg-input);border-radius:var(--radius-full);padding:10px 16px;border:1.5px solid transparent;transition:border-color .2s,background .2s}.search-box:focus-within{background:transparent;border-color:var(--blue)}.search-box svg{width:18px;height:18px;fill:var(--text-muted);flex-shrink:0}.search-box input{background:none;border:none;outline:none;color:var(--text);font-family:Inter,sans-serif;font-size:.95rem;width:100%}.search-box input::placeholder{color:var(--text-muted)}.notif-empty{display:flex;flex-direction:column;align-items:center;padding:60px 40px;text-align:center;gap:12px}.notif-icon{font-size:3rem}.notif-empty h2{font-size:1.5rem;font-weight:800}.notif-empty p{color:var(--text-muted);font-size:.9rem}.profile-banner{height:130px;background:linear-gradient(135deg,#1d4ed8,#7c3aed,#db2777)}.profile-info-row{padding:12px 16px 0;display:flex;align-items:flex-start;gap:0;position:relative;margin-bottom:12px}.profile-avatar-big{width:72px;height:72px;border-radius:50%;background:linear-gradient(135deg,var(--blue),#8B5CF6);color:#fff;font-weight:800;font-size:1.8rem;display:flex;align-items:center;justify-content:center;border:4px solid var(--bg);margin-top:-36px;flex-shrink:0}.profile-meta{padding:12px 16px;flex:1}.profile-meta h2{font-size:1.1rem;font-weight:800}.profile-username{color:var(--text-muted);font-size:.88rem;display:block;margin-bottom:4px}.profile-email{color:var(--text-muted);font-size:.82rem;display:block}.profile-joined{color:var(--text-muted);font-size:.82rem;display:block;margin-top:4px}.profile-tabs{display:flex;border-bottom:1px solid var(--border)}.profile-tab-btn{flex:1;padding:14px 0;background:none;border:none;border-bottom:3px solid transparent;color:var(--text-muted);font-family:Inter,sans-serif;font-size:.9rem;font-weight:500;cursor:pointer;transition:color .2s,border-color .2s}.profile-tab-btn.active{color:var(--text);font-weight:700;border-bottom-color:var(--blue)}.sidebar-right{padding:12px 16px;display:flex;flex-direction:column;gap:16px}.right-search{padding-bottom:4px}.right-box{background:var(--bg-right);border-radius:var(--radius);padding:16px}.right-box h2{font-size:1rem;font-weight:800;margin-bottom:14px}.stats-row{display:flex;gap:12px}.stat-item{flex:1;background:#ffffff0a;border-radius:10px;padding:12px;text-align:center}.stat-num{display:block;font-size:1.6rem;font-weight:800;color:var(--blue)}.stat-label{font-size:.72rem;color:var(--text-muted)}.follow-item{display:flex;align-items:center;gap:10px;border-bottom:1px solid var(--border);cursor:pointer;transition:background .15s;border-radius:8px;padding:8px}.follow-item:hover{background:#e7e9ea0f}.follow-avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,var(--blue),#8B5CF6);color:#fff;font-weight:700;font-size:.85rem;display:flex;align-items:center;justify-content:center;flex-shrink:0}.follow-info{flex:1;min-width:0}.follow-info strong{font-size:.88rem;display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.follow-info small{color:var(--text-muted);font-size:.78rem}.btn-follow{background:var(--text);color:var(--bg);border:none;border-radius:var(--radius-full);padding:6px 14px;font-family:Inter,sans-serif;font-size:.8rem;font-weight:700;cursor:pointer;flex-shrink:0;transition:opacity .2s}.btn-follow:hover{opacity:.85}.btn-show-more{width:100%;background:none;border:none;color:var(--blue);font-family:Inter,sans-serif;font-size:.88rem;padding:12px 8px 4px;cursor:pointer;text-align:left;transition:color .2s}.btn-show-more:hover{color:var(--blue-hover);text-decoration:underline}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#5b708366;z-index:200;display:flex;align-items:flex-start;justify-content:center;padding-top:40px}.modal-compose{background:var(--bg-modal);border-radius:var(--radius);width:600px;max-width:96vw;max-height:85vh;overflow-y:auto}.modal-comments-box{background:var(--bg-modal);border-radius:var(--radius);width:600px;max-width:96vw;max-height:85vh;display:flex;flex-direction:column;overflow:hidden}.modal-form-box{background:var(--bg-modal);border-radius:var(--radius);width:480px;max-width:96vw;padding:0 40px 40px;max-height:90vh;overflow-y:auto}.modal-compose-header{display:flex;align-items:center;padding:14px 16px;gap:16px}.modal-close-btn{width:34px;height:34px;border-radius:50%;border:none;background:none;color:var(--text);font-size:1.05rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s}.modal-close-btn:hover{background:#e7e9ea1a}.modal-compose-body{display:flex;gap:12px;padding:0 16px 16px}.compose-right{flex:1;min-width:0}.compose-textarea{width:100%;background:none;border:none;outline:none;color:var(--text);font-family:Inter,sans-serif;font-size:1.1rem;resize:none;line-height:1.55;padding:8px 0}.compose-textarea.small{font-size:.95rem}.compose-textarea::placeholder{color:var(--text-muted)}.compose-footer{display:flex;align-items:center;justify-content:space-between;padding-top:12px;border-top:1px solid var(--border);margin-top:8px}.compose-footer-icons{display:flex;gap:4px}.comments-original-post{padding:12px 16px;border-bottom:1px solid var(--border);background:#ffffff05}.comments-list{flex:1;overflow-y:auto;max-height:320px}.comments-input-area{display:flex;gap:12px;padding:12px 16px;border-top:1px solid var(--border);background:var(--bg-modal)}.comment-input-wrap{flex:1}.form-group{margin-bottom:14px}.form-group input{width:100%;background:none;border:1.5px solid var(--border);border-radius:4px;padding:14px 12px;color:var(--text);font-family:Inter,sans-serif;font-size:.95rem;outline:none;transition:border-color .2s}.form-group input:focus{border-color:var(--blue)}.form-group input::placeholder{color:var(--text-muted)}.signin-user-item{display:flex;align-items:center;gap:14px;border-bottom:1px solid var(--border);cursor:pointer;border-radius:8px;padding:12px 8px;transition:background .15s}.signin-user-item:hover{background:#e7e9ea14}.signin-user-item strong{display:block;font-size:.95rem}.signin-user-item small{color:var(--text-muted);font-size:.82rem}.empty-feed{display:flex;flex-direction:column;align-items:center;padding:60px 30px;text-align:center;gap:10px}.empty-feed .emoji-big{font-size:3.5rem}.empty-feed h3{font-size:1.4rem;font-weight:800}.empty-feed p{color:var(--text-muted);font-size:.9rem}.toast{position:fixed;bottom:28px;left:50%;transform:translate(-50%) translateY(60px);background:var(--blue);color:#fff;padding:12px 24px;border-radius:var(--radius-full);font-size:.88rem;font-weight:600;z-index:999;opacity:0;transition:all .35s cubic-bezier(.34,1.56,.64,1);pointer-events:none}.toast.show{opacity:1;transform:translate(-50%) translateY(0)}.toast.error{background:var(--red)}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:#333;border-radius:3px}@media(max-width:1100px){.app-shell{grid-template-columns:var(--sidebar-w) minmax(0,1fr)}.sidebar-right,.nav-label{display:none}.sidebar-left{padding:4px 0;align-items:center}.sidenav-item{justify-content:center;padding:12px}.btn-post-big{width:52px;padding:14px 0;border-radius:50%;justify-content:center}.btn-post-big-label,.session-info,.session-menu-btn{display:none}.sidebar-session{justify-content:center}.sidenav{width:auto}.logo{margin:0 auto}.btn-signin{font-size:0;padding:14px}--sidebar-w: 72px}@media(max-width:680px){.app-shell{grid-template-columns:1fr}.sidebar-left{flex-direction:row;position:fixed;bottom:0;left:0;right:0;height:56px;width:100%;z-index:100;background:#000000e6;-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-top:1px solid var(--border);border-right:none;padding:0;justify-content:space-around;overflow:visible}.logo{display:none}.sidenav{flex-direction:row;gap:0;margin:0}.sidenav-item{padding:8px 16px}.btn-post-big{width:40px;height:40px;margin:0}.sidebar-session,.sidebar-no-session{display:none}.feed-center{padding-bottom:60px}}.composer-avatar-wrap,.session-avatar-wrap{position:relative;flex-shrink:0}.composer-avatar-img,.session-avatar-img{width:40px;height:40px;border-radius:50%;object-fit:cover;position:absolute;top:0;right:0;bottom:0;left:0}.profile-banner{height:130px;background:linear-gradient(135deg,#1d4ed8,#7c3aed,#db2777);position:relative;overflow:hidden;cursor:pointer}.profile-banner:hover .banner-upload-btn{opacity:1}.banner-upload-btn{position:absolute;top:0;right:0;bottom:0;left:0;display:flex;align-items:center;justify-content:center;background:#00000073;color:#fff;font-size:.88rem;font-weight:600;cursor:pointer;opacity:0;transition:opacity .2s;gap:6px}.profile-avatar-container{position:relative;margin-top:-36px;flex-shrink:0}.profile-avatar-big{width:72px;height:72px;border-radius:50%;background:linear-gradient(135deg,var(--blue),#8B5CF6);color:#fff;font-weight:800;font-size:1.8rem;display:flex;align-items:center;justify-content:center;border:4px solid var(--bg);overflow:hidden;cursor:pointer}.profile-avatar-big:hover .avatar-upload-btn{opacity:1}.avatar-upload-btn{position:absolute;top:4px;right:4px;bottom:4px;left:4px;border-radius:50%;background:#0000008c;color:#fff;font-size:1.1rem;display:flex;align-items:center;justify-content:center;cursor:pointer;opacity:0;transition:opacity .2s}.follow-avatar-wrap{position:relative;flex-shrink:0}.follow-avatar-img{width:36px;height:36px;border-radius:50%;object-fit:cover;position:absolute;top:0;right:0;bottom:0;left:0}.post-image{width:100%;max-height:480px;object-fit:cover;border-radius:14px;margin-top:10px;cursor:zoom-in;border:1px solid var(--border);transition:opacity .2s}.post-image:hover{opacity:.9}.post-img-preview-wrap{position:relative;margin-top:10px;border-radius:14px;overflow:hidden;border:1px solid var(--border)}.post-img-preview{width:100%;max-height:300px;object-fit:cover;display:block}.remove-img-btn{position:absolute;top:8px;right:8px;width:30px;height:30px;border-radius:50%;background:#000000bf;color:#fff;border:none;font-size:.9rem;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:background .2s}.remove-img-btn:hover{background:var(--red)}.lightbox-overlay{background:#000000eb;align-items:center;justify-content:center;cursor:zoom-out}.lightbox-img{max-width:90vw;max-height:90vh;border-radius:10px;object-fit:contain;box-shadow:0 0 60px #000c}.post-action-btn.img-btn{color:var(--blue)}.feed-sentinel{min-height:1px;padding:18px 0 28px;text-align:center;color:var(--text-muted);font-size:.85rem}.feed-sentinel:empty{padding:0}.profile-counts{display:flex;gap:18px;margin-top:8px;font-size:.85rem;color:var(--text-muted)}.profile-counts strong{color:var(--text);font-weight:700}.profile-follow-btn{align-self:flex-start;margin:12px 16px 0 0;padding:8px 18px;font-size:.88rem}.btn-follow.siguiendo{background:transparent;color:var(--text);border:1px solid var(--border)}.btn-follow.siguiendo:hover{opacity:1;border-color:var(--red);color:var(--red)}.landing-screen{position:relative;display:flex;min-height:100vh;background:var(--bg);overflow:hidden}.landing-left{flex:1;display:flex;align-items:center;justify-content:center;background:var(--bg);padding:40px}.landing-logo{font-size:clamp(6rem,15vw,13rem);color:var(--text);line-height:1;-webkit-user-select:none;user-select:none}.landing-right{flex:0 0 min(600px,50vw);display:flex;flex-direction:column;justify-content:center;padding:clamp(30px,5vw,80px) clamp(24px,5vw,80px)}.landing-logo-mobile{display:none;font-size:2.4rem;margin-bottom:32px;color:var(--text)}.landing-hero h1{font-size:clamp(2.2rem,4.5vw,3.6rem);font-weight:900;line-height:1.12;letter-spacing:-.02em;color:var(--text);margin-bottom:48px}.landing-join-title{font-size:1.5rem;font-weight:800;color:var(--text);margin-bottom:20px}.btn-landing-register{display:block;width:100%;max-width:360px;padding:15px 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