:root{--bg-color: #0f172a;--card-bg: #1e293b;--text-color: #f8fafc;--primary-color: #3b82f6;--border-color: #334155;--muted-color: #94a3b8;--danger-color: #fda4af}*{box-sizing:border-box;margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;-webkit-tap-highlight-color:transparent}body{background-color:var(--bg-color);color:var(--text-color);overflow:hidden;height:100dvh;display:flex;justify-content:center}.screen{display:none;flex-direction:column;width:100%;max-width:480px;height:100%;position:relative;background-color:var(--bg-color);padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}.screen.active{display:flex}.splash-screen{flex:1;display:flex;align-items:center;justify-content:center;padding:32px;background:radial-gradient(circle at top,rgba(59,130,246,.18),transparent 34%),radial-gradient(circle at bottom,rgba(14,165,233,.12),transparent 30%),linear-gradient(180deg,#0b1220,#0f172a 52%,#111c34)}.splash-brand{display:flex;flex-direction:column;align-items:center;gap:18px;text-align:center}.splash-brand__mark{width:92px;height:92px;border-radius:30px;display:grid;place-items:center;background:linear-gradient(135deg,#60a5faf5,#2563ebd1);box-shadow:0 18px 40px #2563eb3d,inset 0 1px #ffffff3d;color:#eff6ff;font-size:42px;font-weight:800;letter-spacing:-.04em}.splash-brand__text{display:flex;flex-direction:column;gap:6px}.splash-brand__text h1{font-size:34px;line-height:1;font-weight:800;letter-spacing:-.04em}.splash-brand__text p{color:#bfdbfec7;font-size:14px;letter-spacing:.12em;text-transform:uppercase}.card{margin:auto 20px;background:var(--card-bg);padding:24px;border-radius:16px;display:flex;flex-direction:column;gap:16px}.card-top{margin:0}.screen-panel{display:flex;flex-direction:column;height:100%}.panel-body{display:flex;flex-direction:column;gap:16px;padding:16px;overflow-y:auto}input,button,textarea{padding:12px 16px;border-radius:8px;border:1px solid var(--border-color);background:#0f172a;color:#fff;font-size:16px;outline:none}button{background:var(--primary-color);cursor:pointer;font-weight:600;border:none}textarea{resize:vertical;min-height:88px}button:disabled{opacity:.65;cursor:wait}.hidden{display:none!important}.app-header{display:flex;align-items:center;justify-content:space-between;padding:16px;border-bottom:1px solid var(--border-color);gap:12px}#screen-chats .app-header{border-bottom:none;padding-bottom:10px}.chat-header{display:block}.chat-header__default,.chat-header__selection{display:grid;grid-template-columns:40px minmax(0,1fr) 40px;align-items:center;gap:12px;min-height:48px}.chat-header__nav-btn,.chat-header__menu-btn{width:40px;height:40px;padding:0;display:grid;place-items:center;background:transparent;border:none;color:var(--text-color)}.chat-header__nav-btn i,.chat-header__menu-btn i{width:22px;height:22px}.room-heading-btn{grid-column:2 / 3;display:grid;grid-template-columns:48px minmax(0,1fr);align-items:center;gap:12px;padding:0;background:transparent;border:none;text-align:left}.room-heading__text{min-width:0;display:flex;flex-direction:column;gap:2px}.chat-selection-title{min-width:0;display:flex;align-items:center;min-height:48px}.chat-selection-title h3{font-size:22px;line-height:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.chat-header__menu-btn:disabled{opacity:.38;cursor:default}.room-heading__text h3,.room-heading__text p{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.room-title-avatar{width:48px;height:48px;border-radius:50%;display:grid;place-items:center;overflow:hidden;background:#3b82f62e;border:1px solid rgba(148,163,184,.18);font-size:19px}.room-title-avatar img{width:100%;height:100%;object-fit:cover}.chats-list{flex:1;overflow-y:auto}.chats-search-shell{padding:0 16px 10px}.chats-search{display:grid;grid-template-columns:16px minmax(0,1fr);align-items:center;gap:8px;min-height:40px;padding:8px 14px;border:none;border-radius:999px;background:var(--card-bg);color:var(--muted-color)}.chats-search__icon{width:14px;height:14px;stroke-width:2.1;transform:scaleX(.92) translateY(.5px);transform-origin:center}.chats-search input{background:transparent;border:none;outline:none;color:var(--text-color);font:inherit;width:100%;padding:0}.search-section{padding:8px 0 18px}.search-section__title{padding:0 16px 10px;color:var(--muted-color);font-size:12px;text-transform:uppercase;letter-spacing:.08em}.search-section__list{display:flex;flex-direction:column}.results-list{display:flex;flex-direction:column;gap:12px;padding-bottom:24px}.chat-item{display:flex;align-items:center;gap:12px;padding:12px 16px;border-bottom:none;cursor:pointer;width:100%;text-align:left;background:transparent;border-radius:0}.chat-avatar{width:48px;height:48px;flex:0 0 48px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:22px;background:#3b82f62e;border:1px solid rgba(148,163,184,.18);overflow:hidden}.chat-avatar__inner{width:100%;height:100%;border-radius:50%;display:grid;place-items:center}.chat-avatar img{width:100%;height:100%;object-fit:cover}.chat-avatar--tech{background:#3b82f633}.chat-avatar--lounge{background:#10b9812e}.chat-avatar--fallback{font-size:16px;font-weight:700}.avatar-fallback{background:var(--avatar-accent-soft, rgba(59, 130, 246, .18));border:1px solid color-mix(in srgb,var(--avatar-accent, #3b82f6) 38%,rgba(148,163,184,.16));color:#f8fafc}.result-card{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 16px;border:1px solid var(--border-color);border-radius:16px;background:#1e293bb3}.result-card--search{width:100%;justify-content:flex-start;border:none;border-radius:0;background:transparent;padding:12px 16px}.result-card__main{display:flex;flex-direction:column;gap:4px;min-width:0;align-items:flex-start;text-align:left}.result-card__main span{color:var(--muted-color);font-size:13px}.result-card__action{white-space:nowrap}.chat-item__body{display:flex;flex-direction:column;gap:4px;min-width:0;flex:1}.chat-item__body span{color:var(--muted-color);font-size:13px}.chat-item__topline{display:flex;align-items:baseline;justify-content:space-between;gap:10px}.chat-item__meta{display:flex;align-items:center;gap:8px}.chat-item__topline time{color:var(--muted-color);font-size:12px;white-space:nowrap}.chat-item__badge{min-width:22px;height:22px;padding:0 7px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;background:#2563eb;color:#fff;font-size:12px;font-weight:700}.chat-item__preview{color:#f8fafcd1;font-size:13px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.messages-container{--msg-edge-gap: 24px;--msg-own-left-gap: 88px;--msg-received-right-gap: 40px;--msg-select-size: 22px;--msg-select-gap: 12px;--msg-select-width: 0px;--msg-select-shift: calc(var(--msg-select-size) + var(--msg-select-gap));--msg-avatar-size: 36px;--msg-avatar-gap: 12px;flex:1;overflow-y:auto;padding:16px;display:flex;flex-direction:column;gap:8px;scrollbar-width:none;-ms-overflow-style:none}.messages-container::-webkit-scrollbar{display:none}.messages-container--selection-mode{--msg-select-width: var(--msg-select-size)}.history-loader{margin:4px auto;padding:6px 10px;color:var(--muted-color);font-size:12px}.history-loader--bottom:empty{display:none}.jump-latest-btn{position:sticky;bottom:8px;margin:6px auto 0;padding:10px 14px;border-radius:999px;background:#2563eb;color:#fff;box-shadow:0 12px 28px #2563eb47}.messages-day-divider{margin:10px auto 2px;padding:5px 10px;border-radius:999px;background:#0f172ae6;border:1px solid rgba(148,163,184,.12);color:var(--muted-color);font-size:12px}.messages-divider{margin:8px auto 4px;padding:6px 12px;border-radius:999px;background:#2563eb2e;color:#bfdbfe;font-size:12px;font-weight:700}.msg-row{display:flex;align-items:end;gap:0;width:100%;min-height:max-content;padding-left:0;padding-right:0;position:relative}.msg-row--received{padding-right:var(--msg-received-right-gap)}.messages-container--selection-mode .msg-row--received{padding-right:calc(var(--msg-received-right-gap) - var(--msg-select-shift));padding-left:var(--msg-select-shift)}.msg-select-slot{position:absolute;left:0;bottom:0;width:0;flex:0 0 0;display:flex;align-items:flex-end;justify-content:flex-start;overflow:visible}.msg-select{flex:0 0 var(--msg-select-size);width:var(--msg-select-size);height:var(--msg-select-size);padding:0;border:none;background:transparent;display:grid;place-items:center;opacity:0;pointer-events:none;transform:translate(-8px);transition:opacity .18s ease,transform .18s ease}.msg-select--visible,.messages-container--selection-mode .msg-select{opacity:1;pointer-events:auto;transform:translate(0)}.msg-select__circle{width:18px;height:18px;border-radius:999px;border:1.5px solid rgba(148,163,184,.55);background:transparent;color:#fff;font-size:11px;font-weight:700;line-height:1;display:grid;place-items:center}.msg-select--checked .msg-select__circle{border-color:#60a5fa;background:#2563eb}.msg-row--deleting{pointer-events:none}.msg-row--deleting{opacity:0;transform:scale(.985);transition:opacity .14s ease,transform .14s ease}.msg-row--deleting .msg,.msg-row--deleting .msg-avatar-slot,.msg-row--deleting .msg-select-slot{opacity:0;transition:opacity .14s ease}.msg-track{display:flex;align-items:flex-end;min-width:0;flex:1 1 auto}.msg-track--received{justify-content:flex-start;width:100%;flex:1 1 100%;padding-right:0}.msg-track--sent{justify-content:flex-end;width:100%;flex:1 1 100%;padding-left:0;padding-right:0}.msg-avatar-slot{width:var(--msg-avatar-size);flex:0 0 var(--msg-avatar-size);display:flex;align-items:flex-end;justify-content:center;margin-right:var(--msg-avatar-gap)}.msg-avatar-slot--empty{width:0;flex-basis:0;margin-right:0}.msg-avatar{width:var(--msg-avatar-size);height:var(--msg-avatar-size);border-radius:50%;object-fit:cover;display:grid;place-items:center;background:#3b82f62e;border:1px solid rgba(148,163,184,.18);font-size:15px;font-weight:700}.msg-avatar--fallback{color:#f8fafc}.msg-author-row{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:-1px}.msg-author-name,.msg-author-role{font-size:12px;line-height:1.2}.msg-author-name{color:#bfdbfefa;font-weight:700}.msg-author-role{color:#94a3b8f2;white-space:nowrap;text-transform:lowercase}.msg{width:fit-content;max-width:min(100%,392px);padding:10px 14px;border-radius:18px;word-wrap:break-word;display:flex;flex-direction:column;gap:8px;box-shadow:0 10px 24px #0f172a2e;user-select:none;-webkit-user-select:none;-webkit-touch-callout:none}.msg time{font-size:12px;color:#ffffffb8}.msg-meta-row{display:flex;align-items:center;justify-content:flex-end;gap:10px}.msg-edited{margin-right:6px;color:#ffffff8c;font-size:11px}.msg.sent{background:var(--primary-color);margin-left:auto;max-width:min(calc(100% - var(--msg-own-left-gap)),392px);border-bottom-right-radius:6px}.msg.received{background:var(--card-bg);max-width:min(calc(100% - var(--msg-avatar-size) - var(--msg-avatar-gap)),392px);border-bottom-left-radius:6px}.msg--focused{outline:2px solid rgba(191,219,254,.9);box-shadow:0 0 0 6px #2563eb24;animation:message-focus-pulse 2.2s ease-out 1}@keyframes message-focus-pulse{0%{transform:scale(.985);box-shadow:0 0 #2563eb57}to{transform:scale(1);box-shadow:0 0 0 6px #2563eb24}}.emoji-panel{padding:10px 12px 0}.emoji-picker-shell{width:100%;height:340px;--background: rgba(15, 23, 42, .98);--border-color: rgba(148, 163, 184, .12);--button-active-background: rgba(59, 130, 246, .22);--button-hover-background: rgba(30, 41, 59, .92);--category-emoji-padding: .4rem;--emoji-size: 1.35rem;--input-border-color: rgba(148, 163, 184, .12);--input-font-color: #f8fafc;--input-placeholder-color: #94a3b8;--indicator-color: #60a5fa;--num-columns: 8;--outline-color: rgba(96, 165, 250, .42);--shadow: none;border-radius:20px;overflow:hidden}.chat-input-area{display:grid;grid-template-columns:40px minmax(0,1fr) 40px;align-items:end;padding:12px;gap:8px;background:var(--card-bg)}.chat-compose__icon-btn,.chat-compose__send-btn{width:40px;height:40px;padding:0;display:grid;place-items:center;border:none;background:transparent;color:var(--text-color)}.chat-compose__send-btn{color:#60a5fa}.chat-compose__field-wrap{position:relative;display:flex;align-items:end}.chat-compose__field-wrap textarea{width:100%;min-height:40px;max-height:156px;resize:none;padding:9px 44px 9px 14px;border-radius:20px;line-height:22px;scrollbar-width:none;-ms-overflow-style:none}.chat-compose__field-wrap textarea::-webkit-scrollbar{display:none}.chat-compose__attach-btn{position:absolute;right:10px;bottom:9px;width:24px;height:24px;padding:0;display:grid;place-items:center;background:transparent;border:none;color:var(--muted-color)}.chat-compose__attach-btn svg{width:13px;height:13px;stroke-width:1.8}.chat-profile-layout{display:flex;flex-direction:column;gap:16px;width:100%}.chat-profile-card{display:flex;flex-direction:column;gap:14px;padding:18px;border-radius:20px;background:#1e293bb8;border:1px solid rgba(148,163,184,.12)}.chat-profile-card h4{font-size:15px}.chat-profile-hero{display:flex;align-items:flex-start;gap:16px}.chat-profile-hero--stack{flex-direction:column;align-items:center;text-align:center}.chat-profile-hero__meta{display:flex;flex-direction:column;gap:8px}.chat-profile-hero__meta h3{font-size:28px;line-height:1.05}.chat-profile-hero__meta p,.chat-profile-empty,.chat-profile-person__meta span{color:var(--muted-color);font-size:14px}.chat-profile-hero__meta--center{align-items:center}.chat-profile-form,.chat-profile-list{display:flex;flex-direction:column;gap:12px}.chat-profile-search{display:flex;gap:10px}.chat-profile-search input{flex:1}.chat-profile-person{display:flex;align-items:center;gap:12px;padding:12px 14px;border-radius:16px;background:#0f172a80;border:1px solid rgba(148,163,184,.08)}.chat-profile-person__meta{flex:1;display:flex;flex-direction:column;gap:4px}.chat-profile-avatar-picker{display:flex;flex-direction:column;align-items:center;gap:10px;cursor:pointer;color:var(--muted-color);font-size:12px}.chat-profile-avatar-static{display:flex}.chat-profile-avatar,.chat-profile-person__avatar,.chat-profile-avatar-fallback{width:92px;height:92px;border-radius:28px;object-fit:cover;display:grid;place-items:center;background:#2563eb33;border:1px solid rgba(148,163,184,.18);font-size:32px;font-weight:700}.chat-profile-person__avatar{width:52px;height:52px;border-radius:18px;font-size:20px}@media (max-width: 560px){.chat-profile-hero{flex-direction:column}.chat-profile-avatar-picker,.chat-profile-avatar-static{align-items:flex-start}.chat-profile-search{flex-direction:column}}.tab-bar{position:fixed;bottom:0;width:100%;max-width:480px;height:60px;background:var(--card-bg);display:flex;justify-content:space-around;align-items:center;border-top:1px solid var(--border-color);padding-bottom:env(safe-area-inset-bottom)}.tab-item{display:flex;flex-direction:column;align-items:center;gap:4px;background:none;border:none;color:#94a3b8;font-size:10px}.tab-item__icon-wrap{position:relative;display:inline-flex;align-items:center;justify-content:center}.tab-item__badge{position:absolute;top:-7px;right:-12px;min-width:18px;height:18px;padding:0 5px;border-radius:999px;display:inline-flex;align-items:center;justify-content:center;background:#3b82f6;color:#f8fafc;font-size:10px;font-weight:700;line-height:1}.tab-item.active{color:var(--primary-color)}.muted,.header-note{color:var(--muted-color);font-size:14px}.field{display:flex;flex-direction:column;gap:8px}.field-hint{min-height:18px;font-size:12px;color:var(--muted-color)}.field-hint--checking{color:#93c5fd}.field-hint--valid{color:#86efac}.field-hint--invalid{color:var(--danger-color)}.field-input--checking{border-color:#60a5fa;box-shadow:0 0 0 1px #60a5fa3d}.field-input--valid{border-color:#22c55e;box-shadow:0 0 0 1px #22c55e3d}.field-input--invalid{border-color:#fb7185;box-shadow:0 0 0 1px #fb71853d}.auth-modes{display:flex;gap:8px}.mode-pill{flex:1;border:1px solid var(--border-color);border-radius:999px;padding:10px 14px;text-align:center;color:var(--muted-color)}.mode-pill input{display:none}.mode-pill:has(input:checked){color:var(--text-color);border-color:var(--primary-color);background:#3b82f626}.secondary-btn,.icon-btn{background:transparent;border:1px solid var(--border-color)}.icon-btn{min-width:44px}.header-actions,.room-heading{display:flex;align-items:center;gap:8px}.room-heading{min-width:0}.list-state{padding:24px 16px;color:var(--muted-color)}.error-text{color:var(--danger-color);min-height:18px;font-size:14px}.room-error{padding:0 16px 8px}.avatar-loader{display:flex;align-items:center;gap:12px}.avatar-loader img{width:72px;height:72px;border-radius:50%;object-fit:cover}.toast{position:fixed;left:50%;bottom:84px;transform:translate(-50%) translateY(12px);background:#0f172af5;border:1px solid var(--border-color);color:var(--text-color);padding:12px 16px;border-radius:12px;opacity:0;pointer-events:none;transition:opacity .18s ease,transform .18s ease;max-width:calc(100vw - 32px);z-index:20}.toast.visible{opacity:1;transform:translate(-50%) translateY(0)}.confirm-overlay{position:fixed;top:0;right:0;bottom:0;left:0;z-index:40;display:flex;align-items:center;justify-content:center}.confirm-backdrop{position:absolute;top:0;right:0;bottom:0;left:0;background:#020617e6}.confirm-sheet{position:relative;width:min(calc(100% - 40px),360px);margin:0 20px;padding:0;border-radius:0;background:transparent;border:none;box-shadow:none;display:flex;flex-direction:column;gap:10px;text-align:center}.confirm-sheet h3{font-size:20px}.confirm-sheet p{color:var(--muted-color);line-height:1.45}.confirm-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:4px}.danger-btn{background:#dc2626}