:root{--messenger-blue: #0084ff;--messenger-blue-hover: #0073e6;--bg-primary: #ffffff;--bg-secondary: #f0f2f5;--bg-hover: #f0f2f5;--bg-active: #e7f3ff;--text-primary: #050505;--text-secondary: #65676b;--text-tertiary: #8a8d91;--border-color: #e4e6eb;--bubble-them: #e4e6eb;--bubble-me: #0084ff;--online-green: #31a24c;--badge-red: #e41e3f;--input-bg: #f0f2f5;--sidebar-width: 360px;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;line-height:1.34;color-scheme:light}*{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%;overflow:hidden;background:var(--bg-primary);color:var(--text-primary)}.messenger{display:flex;height:100vh;width:100%}.sidebar{width:var(--sidebar-width);min-width:var(--sidebar-width);border-right:1px solid var(--border-color);display:flex;flex-direction:column;background:var(--bg-primary)}.sidebar__header{display:flex;align-items:center;justify-content:space-between;padding:16px 16px 8px}.sidebar__title{font-size:24px;font-weight:700;letter-spacing:-.02em}.sidebar__search{padding:8px 16px 12px;position:relative}.sidebar__search-icon{position:absolute;left:28px;top:50%;transform:translateY(-50%);color:var(--text-secondary);pointer-events:none}.sidebar__search-input{width:100%;padding:8px 12px 8px 36px;border:none;border-radius:20px;background:var(--input-bg);font-size:15px;color:var(--text-primary);outline:none}.sidebar__search-input::placeholder{color:var(--text-secondary)}.sidebar__search-input:focus{background:var(--bg-secondary)}.sidebar__list{flex:1;overflow-y:auto;padding:0 8px}.convo-item{display:flex;align-items:center;gap:12px;width:100%;padding:8px;border:none;border-radius:10px;background:transparent;cursor:pointer;text-align:left;font:inherit;color:inherit;transition:background .15s}.convo-item:hover{background:var(--bg-hover)}.convo-item--active,.convo-item--active:hover{background:var(--bg-active)}.convo-item__avatar-wrap{position:relative;flex-shrink:0}.convo-item__avatar{width:48px;height:48px;border-radius:50%;background:linear-gradient(135deg,#a855f7,#6366f1);display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:600;color:#fff;letter-spacing:.02em}.convo-item__online{position:absolute;bottom:1px;right:1px;width:12px;height:12px;border-radius:50%;background:var(--online-green);border:2px solid var(--bg-primary)}.convo-item__info{flex:1;min-width:0}.convo-item__row{display:flex;align-items:center;justify-content:space-between;gap:8px}.convo-item__name{font-size:15px;font-weight:600;color:var(--text-primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.convo-item__time{font-size:12px;color:var(--text-secondary);flex-shrink:0}.convo-item__preview{font-size:13px;color:var(--text-secondary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1}.convo-item__badge{flex-shrink:0;background:var(--badge-red);color:#fff;font-size:11px;font-weight:700;min-width:18px;height:18px;border-radius:9px;display:flex;align-items:center;justify-content:center;padding:0 5px}.chat{flex:1;display:flex;flex-direction:column;min-width:0;background:var(--bg-primary)}.chat__header{display:flex;align-items:center;gap:12px;padding:10px 16px;border-bottom:1px solid var(--border-color);flex-shrink:0}.chat__back{display:none}.chat__header-avatar-wrap{position:relative;flex-shrink:0}.chat__header-avatar{width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,#a855f7,#6366f1);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:600;color:#fff}.chat__header-online{position:absolute;bottom:0;right:0;width:10px;height:10px;border-radius:50%;background:var(--online-green);border:2px solid var(--bg-primary)}.chat__header-info{flex:1;min-width:0}.chat__header-name{font-size:15px;font-weight:600;line-height:1.2}.chat__header-status{font-size:12px;color:var(--text-secondary)}.chat__header-actions{display:flex;gap:4px}.chat__messages{flex:1;overflow-y:auto;padding:16px 16px 8px;display:flex;flex-direction:column;gap:2px}.msg-row{display:flex;align-items:flex-end;gap:6px;max-width:65%}.msg-row--me{align-self:flex-end;flex-direction:row-reverse}.msg-row--them{align-self:flex-start}.msg-row__avatar{width:28px;height:28px;border-radius:50%;background:linear-gradient(135deg,#a855f7,#6366f1);display:flex;align-items:center;justify-content:center;font-size:10px;font-weight:600;color:#fff;flex-shrink:0}.msg-row__status{color:var(--text-tertiary);display:flex;align-items:center;flex-shrink:0}.bubble{padding:8px 12px;border-radius:18px;font-size:15px;line-height:1.36;word-break:break-word;max-width:100%}.bubble--them{background:var(--bubble-them);color:var(--text-primary);border-bottom-left-radius:4px}.bubble--them.bubble--last{border-bottom-left-radius:18px}.bubble--me{background:var(--bubble-me);color:#fff;border-bottom-right-radius:4px}.bubble--me.bubble--last{border-bottom-right-radius:18px}.bubble__text{white-space:pre-wrap}.chat__input-area{display:flex;align-items:center;gap:8px;padding:8px 16px 12px;flex-shrink:0}.chat__input-wrap{flex:1}.chat__input{width:100%;padding:10px 16px;border:none;border-radius:20px;background:var(--input-bg);font-size:15px;color:var(--text-primary);outline:none}.chat__input::placeholder{color:var(--text-secondary)}.chat__input:focus{background:var(--bg-secondary)}.icon-btn{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border:none;border-radius:50%;background:transparent;color:var(--messenger-blue);cursor:pointer;flex-shrink:0;transition:background .15s}.icon-btn:hover{background:var(--bg-hover)}.send-btn{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border:none;border-radius:50%;background:transparent;color:var(--messenger-blue);cursor:pointer;flex-shrink:0;transition:background .15s}.send-btn:hover{background:var(--bg-hover)}.sidebar__list::-webkit-scrollbar,.chat__messages::-webkit-scrollbar{width:6px}.sidebar__list::-webkit-scrollbar-thumb,.chat__messages::-webkit-scrollbar-thumb{background:#0003;border-radius:3px}.sidebar__list::-webkit-scrollbar-track,.chat__messages::-webkit-scrollbar-track{background:transparent}@media(max-width:768px){.sidebar{position:fixed;top:0;right:0;bottom:0;left:0;width:100%;min-width:unset;z-index:10;transform:translate(-100%);transition:transform .25s ease}.sidebar--open{transform:translate(0)}.chat__back{display:flex}.msg-row{max-width:85%}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(4px)}to{opacity:1;transform:translateY(0)}}.bubble{animation:fadeInUp .2s ease}