:root{--tg-bg: #0e0e0e;--tg-bg-secondary: #1c1c1c;--tg-bg-tertiary: #262626;--tg-bg-hover: #2a2a2a;--tg-text: #ffffff;--tg-text-secondary: #8e8e8e;--tg-text-muted: #6b6b6b;--tg-border: #2e2e2e;--tg-accent: #539bf5;--tg-accent-hover: #6db0f7;--tg-danger: #f28b82;--tg-success: #81c995;--tg-shadow: 0 0 0 1px rgba(255,255,255,.05);--font-main: "Roboto", "Apple Color Emoji", "Segoe UI", sans-serif;--spacing-xs: 4px;--spacing-sm: 8px;--spacing-md: 12px;--spacing-lg: 16px;--spacing-xl: 20px;--sidebar-width: 300px}@media(prefers-color-scheme:light){:root{--tg-bg: #ffffff;--tg-bg-secondary: #f5f5f5;--tg-bg-tertiary: #e5e5e5;--tg-bg-hover: #e8e8e8;--tg-text: #000000;--tg-text-secondary: #707680;--tg-text-muted: #a4a4a4;--tg-border: #dcdcdc;--tg-shadow: 0 0 0 1px rgba(0,0,0,.05)}}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-family:var(--font-main);background:var(--tg-bg);color:var(--tg-text);line-height:1.4;-webkit-font-smoothing:antialiased}body{min-height:100vh;background:var(--tg-bg)}.app-container{display:flex;min-height:100vh}.sidebar{width:var(--sidebar-width);background:var(--tg-bg-secondary);border-right:1px solid var(--tg-border);display:flex;flex-direction:column;position:fixed;height:100vh;left:0;top:0}.sidebar-header{padding:var(--spacing-lg);border-bottom:1px solid var(--tg-border);display:flex;align-items:center;gap:var(--spacing-md)}.sidebar-title{font-size:18px;font-weight:500}.sidebar-nav{padding:var(--spacing-sm);border-bottom:1px solid var(--tg-border)}.sidebar-nav a{display:block;padding:var(--spacing-md);color:var(--tg-text);text-decoration:none;border-radius:8px;font-size:14px}.sidebar-nav a:hover{background:var(--tg-bg-hover)}.sidebar-nav a.active{background:var(--tg-accent);color:#fff}.channel-list{flex:1;overflow-y:auto}.channel-item{display:flex;align-items:center;gap:var(--spacing-md);padding:var(--spacing-md) var(--spacing-lg);cursor:pointer;transition:background .15s}.channel-item:hover{background:var(--tg-bg-hover)}.channel-item.active{background:var(--tg-bg-tertiary)}.channel-avatar{width:48px;height:48px;border-radius:50%;background:var(--tg-accent);display:flex;align-items:center;justify-content:center;font-size:20px;font-weight:600;color:#fff;flex-shrink:0;overflow:hidden}.channel-avatar img{width:100%;height:100%;object-fit:cover}.channel-info{flex:1;min-width:0}.channel-name{font-weight:500;font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.channel-preview{font-size:13px;color:var(--tg-text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.main-content{flex:1;margin-left:var(--sidebar-width);background:var(--tg-bg)}.post-list{max-width:600px;margin:0 auto;padding:var(--spacing-lg)}.post-card{background:var(--tg-bg-secondary);border-radius:12px;margin-bottom:var(--spacing-md);overflow:hidden}.post-header{display:flex;align-items:center;gap:var(--spacing-md);padding:var(--spacing-md);border-bottom:1px solid var(--tg-border)}.post-author-avatar{width:40px;height:40px;border-radius:50%;background:var(--tg-accent);display:flex;align-items:center;justify-content:center;font-weight:600;color:#fff;font-size:16px;overflow:hidden}.post-author-avatar img{width:100%;height:100%;object-fit:cover}.post-author-info{flex:1}.post-author-name{font-weight:600;font-size:14px;display:flex;align-items:center;gap:var(--spacing-xs)}.post-author-name .verified{color:var(--tg-accent)}.post-date{font-size:12px;color:var(--tg-text-muted)}.post-content{padding:var(--spacing-md);font-size:14px;line-height:1.5}.post-content p{margin-bottom:var(--spacing-sm)}.post-content b,.post-content strong{font-weight:600}.post-content br{display:block;margin:var(--spacing-xs) 0;content:""}.post-content a{color:var(--tg-accent);text-decoration:none}.post-content a:hover{text-decoration:underline}.post-content img{max-width:100%;width:auto;height:auto;max-height:420px;object-fit:contain;border-radius:8px;margin:var(--spacing-sm) 0;background:var(--tg-bg-tertiary)}.post-content ul,.post-content ol{padding-left:var(--spacing-lg);margin:var(--spacing-sm) 0}.post-content li{margin-bottom:var(--spacing-xs)}.post-media{margin:var(--spacing-sm) 0;display:flex;flex-direction:column;gap:4px}.post-media img{width:100%;max-width:100%;max-height:420px;height:auto;object-fit:contain;background:var(--tg-bg-tertiary);border-radius:8px}.post-reactions{display:flex;gap:var(--spacing-sm);padding:var(--spacing-md);border-top:1px solid var(--tg-border)}.reaction{display:flex;align-items:center;gap:var(--spacing-xs);background:var(--tg-bg-tertiary);padding:var(--spacing-xs) var(--spacing-sm);border-radius:16px;font-size:13px}.reaction-emoji{font-size:16px}.post-stats{display:flex;gap:var(--spacing-lg);padding:var(--spacing-sm) var(--spacing-md);border-top:1px solid var(--tg-border);font-size:13px;color:var(--tg-text-secondary)}.post-stat{display:flex;align-items:center;gap:var(--spacing-xs)}.comments-section{background:var(--tg-bg-secondary);border-radius:12px;margin-bottom:var(--spacing-md);padding:var(--spacing-md)}.comments-title{font-size:14px;font-weight:600;margin-bottom:var(--spacing-md);color:var(--tg-text-secondary)}.comment{display:flex;gap:var(--spacing-sm);padding:var(--spacing-sm) 0;border-bottom:1px solid var(--tg-border)}.comment:last-child{border-bottom:none}.comment-avatar{width:32px;height:32px;border-radius:50%;background:var(--tg-bg-tertiary);display:flex;align-items:center;justify-content:center;font-size:14px;flex-shrink:0}.comment-body{flex:1}.comment-author{font-weight:600;font-size:13px}.comment-text{font-size:13px;color:var(--tg-text);margin-top:2px}.comment-date{font-size:11px;color:var(--tg-text-muted);margin-top:2px}.back-button{display:flex;align-items:center;gap:var(--spacing-sm);padding:var(--spacing-md);color:var(--tg-text);text-decoration:none;font-size:14px;transition:background .15s}.back-button:hover{background:var(--tg-bg-hover)}.back-button svg{width:20px;height:20px}.loading{text-align:center;padding:var(--spacing-2xl);color:var(--tg-text-secondary)}.error-message{text-align:center;padding:var(--spacing-2xl);color:var(--tg-danger)}.load-more{text-align:center;padding:var(--spacing-lg)}.load-more button{background:var(--tg-bg-tertiary);color:var(--tg-text);border:none;padding:var(--spacing-sm) var(--spacing-lg);border-radius:8px;cursor:pointer;font-size:14px}.load-more button:hover{background:var(--tg-bg-hover)}.header{background:var(--tg-bg-secondary);border-bottom:1px solid var(--tg-border);padding:var(--spacing-md) var(--spacing-lg);position:sticky;top:0;z-index:100}.header-content{display:flex;align-items:center;justify-content:space-between;max-width:600px;margin:0 auto}.logo{font-size:18px;font-weight:600;color:var(--tg-text);text-decoration:none}.header-actions{display:flex;gap:var(--spacing-md)}@media(max-width:768px){.sidebar{display:none}.main-content{margin-left:0}.post-list{padding:var(--spacing-sm)}}