:root{--bg: #d7dde6;--bg-2: #f7f8fb;--surface: #eef1f6;--surface-2: #e3e8f0;--line: #c5ceda;--line-strong: #9aa7b8;--line-soft: rgba(155, 168, 184, .45);--text: #0c1118;--muted: #5b6778;--muted-2: #8490a0;--accent: #e85d04;--accent-hover: #f48c06;--accent-soft: rgba(232, 93, 4, .12);--accent-ring: rgba(232, 93, 4, .24);--accent-2: #0f766e;--accent-2-soft: rgba(15, 118, 110, .12);--mine: #e85d04;--theirs: #e8eef6;--success: #16a34a;--warn: #ca8a04;--warn-soft: rgba(202, 138, 4, .12);--danger: #dc2626;--danger-soft: rgba(220, 38, 38, .1);--r-xs: 8px;--r-sm: 12px;--r-md: 18px;--r-lg: 24px;--r-xl: 32px;--r-full: 9999px;--r-pill: var(--r-full);--r-avatar: 50%;--shell-radius: 28px;--s-1: 4px;--s-2: 8px;--s-3: 12px;--s-4: 16px;--s-5: 20px;--s-6: 24px;--s-7: 32px;--s-8: 48px;--shadow-sm: 0 1px 2px rgba(12, 17, 24, .06);--shadow-md: 0 10px 30px rgba(12, 17, 24, .08);--shadow-lg: 0 24px 60px rgba(12, 17, 24, .12);--shadow: var(--shadow-lg);--z-sidebar: 100;--z-dropdown: 200;--z-overlay: 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88% 78%,rgba(45,212,191,.1),transparent 55%),linear-gradient(165deg,#12161d 0%,var(--bg) 50%,#0b0d10 100%)}.auth-orb{position:absolute;border-radius:50%;filter:blur(48px);opacity:.85;animation:authDrift 14s ease-in-out infinite alternate}.auth-orb-a{width:min(420px,70vw);height:min(420px,70vw);left:-10%;top:-8%;background:var(--mesh-a)}.auth-orb-b{width:min(360px,60vw);height:min(360px,60vw);right:-6%;bottom:-12%;background:var(--mesh-b);animation-delay:-4s}.auth-grid{position:absolute;top:0;right:0;bottom:0;left:0;opacity:.28;background-image:linear-gradient(var(--line-soft) 1px,transparent 1px),linear-gradient(90deg,var(--line-soft) 1px,transparent 1px);background-size:52px 52px;-webkit-mask-image:radial-gradient(ellipse at 28% 32%,#000 12%,transparent 68%);mask-image:radial-gradient(ellipse at 28% 32%,#000 12%,transparent 68%)}@keyframes authDrift{0%{transform:translateZ(0) scale(1)}to{transform:translate3d(18px,22px,0) scale(1.06)}}.auth-shell{position:relative;z-index:1;width:min(1120px,100%);min-height:min(740px,calc(100dvh - 48px));display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(28px,5vw,56px);align-items:stretch;padding:clamp(28px,4vw,48px);border-radius:36px;background:color-mix(in srgb,var(--bg-2) 78%,transparent);border:1px solid color-mix(in srgb,var(--line) 65%,transparent);box-shadow:var(--shadow-lg);-webkit-backdrop-filter:blur(22px);backdrop-filter:blur(22px);animation:fadeUp var(--dur-slow) var(--ease)}.auth-brand{display:flex;flex-direction:column;gap:28px;min-width:0;padding-top:4px}.auth-top{display:flex;align-items:center;gap:12px}.auth-name{font-size:1.05rem;font-weight:800;letter-spacing:var(--tracking-tight)}.auth-copy{display:flex;flex-direction:column;gap:14px;margin-top:auto}.auth-kicker{margin:0;text-transform:uppercase;letter-spacing:.16em;font-size:.72rem;font-weight:650;color:var(--muted)}.auth-copy h1{margin:0;font-size:clamp(5.2rem,13vw,8.6rem);line-height:.82;font-weight:800;letter-spacing:-.08em;background:linear-gradient(180deg,var(--text) 40%,color-mix(in srgb,var(--text) 55%,var(--accent)) 100%);-webkit-background-clip:text;background-clip:text;color:transparent;animation:fadeUp .55s var(--ease) both}.auth-tagline{margin:0;max-width:26ch;color:var(--muted);font-size:clamp(1.05rem,2.2vw,1.25rem);font-weight:500;line-height:1.45}.auth-preview{display:grid;gap:10px;max-width:320px;animation:fadeUp .7s var(--ease) .08s both}.auth-bubble{width:fit-content;max-width:100%;padding:12px 14px;border-radius:18px;font-size:.92rem;font-weight:500;line-height:1.35;box-shadow:var(--shadow-sm)}.auth-bubble.theirs{background:var(--bg-2);border:1px solid var(--line);color:var(--text);border-bottom-left-radius:6px}.auth-bubble.mine{justify-self:end;background:var(--accent);color:#fff;border-bottom-right-radius:6px}.auth-bubble-name{display:block;font-size:.72rem;font-weight:700;color:var(--accent);margin-bottom:2px;letter-spacing:.02em}.auth-bubble.typing{display:inline-flex;align-items:center;gap:5px;padding:14px 16px;min-height:44px}.auth-bubble.typing i{width:7px;height:7px;border-radius:50%;background:var(--muted-2);animation:authDot 1.2s ease-in-out infinite}.auth-bubble.typing i:nth-child(2){animation-delay:.15s}.auth-bubble.typing i:nth-child(3){animation-delay:.3s}@keyframes authDot{0%,80%,to{opacity:.35;transform:translateY(0)}40%{opacity:1;transform:translateY(-3px)}}.auth-installs{margin-top:auto;display:grid;gap:12px;max-width:360px;animation:fadeUp .75s var(--ease) .12s 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8px;border-radius:8px}.text-btn:hover{background:var(--accent-soft)}.notif-empty{text-align:center;color:var(--muted);padding:32px 16px;margin:0}.notif-item{display:flex;align-items:flex-start;gap:12px;padding:12px 16px;position:relative}.notif-item:hover{background:var(--surface)}.notif-item.unread{background:var(--accent-soft)}.notif-item.unread:before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;border-radius:var(--r-full);background:var(--accent)}.notif-icon{font-size:1.4rem;flex-shrink:0}.notif-content{flex:1;min-width:0}.notif-content p{margin:2px 0 0;font-size:.8rem;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.notif-backdrop{position:fixed;top:0;right:0;bottom:0;left:0;background:var(--overlay-bg);z-index:calc(var(--z-toast) - 1)}.notif-slide-panel{position:fixed;top:0;right:0;width:360px;height:100%;background:var(--bg-2);border-left:1px solid var(--line);box-shadow:var(--shadow-lg);z-index:var(--z-toast);transform:translate(100%);transition:transform var(--dur-slow) var(--ease);display:flex;flex-direction:column}.notif-slide-panel.open{transform:translate(0)}.notif-slide-head{display:flex;align-items:center;justify-content:space-between;padding:16px;border-bottom:1px solid var(--line)}.notif-slide-body{flex:1;overflow-y:auto}@media (max-width: 1024px){:root{--sidebar-w: 280px}.messages{padding:24px 18px 16px}.auth-shell{grid-template-columns:1fr;min-height:auto;gap:24px}.auth-copy{margin-top:0}.auth-copy h1{font-size:clamp(3.8rem,18vw,6rem)}.auth-preview{display:none}.auth-installs{max-width:none}.auth-card{justify-self:stretch;width:100%}}@media (max-width: 768px){.shell{grid-template-columns:1fr;gap:0;padding:0}.sidebar,.main{border-radius:0;border:0;box-shadow:none}.mobile-menu{display:flex;position:fixed;top:14px;left:14px;z-index:var(--z-dropdown);width:44px;height:44px;border-radius:14px;background:var(--bg-2);border:1px solid var(--line);color:var(--text);align-items:center;justify-content:center;box-shadow:var(--shadow-md)}.sidebar{position:fixed;top:0;bottom:0;left:0;right:auto;width:min(var(--sidebar-w),90vw);z-index:var(--z-sidebar);transform:translate(-100%);transition:transform var(--dur) var(--ease);border-radius:0 24px 24px 0}.shell.sidebar-open .sidebar{transform:translate(0)}.shell.chat-open:not(.sidebar-open) .sidebar{display:none}.shell.chat-open.sidebar-open .main{display:none}.shell:not(.chat-open) .main{display:none}.back{display:inline-grid;place-items:center}.bundle{max-width:88%}.composer .send-btn{min-width:44px;width:44px;padding:0;font-size:0}.composer .send-btn:after{content:"↑";font-size:1.1rem;font-weight:700}.messages{padding:24px 12px 12px}.chat-head{padding-left:56px}.welcome-screen{text-align:center}.welcome-actions{justify-content:center}.welcome-lead{margin-left:auto;margin-right:auto}.notif-slide-panel{width:100%}.auth{padding:10px}.auth-shell{border-radius:24px;padding:20px}.auth-get-app{font-size:.88rem}}.security-sheet{width:min(480px,100%);display:flex;flex-direction:column;gap:0;padding:0;overflow:hidden}.security-body{padding:0 22px 22px;display:grid;gap:14px;overflow:auto}.security-card{display:grid;gap:10px;padding:14px 16px;background:var(--surface, var(--bg));border:1px solid var(--line);border-radius:16px}.security-card strong{color:var(--text);font-size:.95rem}.security-list{margin:0;padding-left:1.1rem;color:var(--muted);font-size:.85rem;display:grid;gap:4px}.security-pill{margin:0;font-size:.8rem;font-weight:600;padding:6px 10px;border-radius:999px;width:fit-content}.security-pill.ok{background:color-mix(in srgb,var(--success, #1a7f4b) 18%,transparent);color:var(--success, #1a7f4b)}.security-pill.warn{background:color-mix(in srgb,var(--danger, #b42318) 14%,transparent);color:var(--danger, #b42318)}.security-actions{display:flex;flex-wrap:wrap;gap:8px}.security-backup{width:100%;min-height:88px;resize:vertical;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.75rem;border-radius:12px;border:1px solid var(--line);background:var(--bg);color:var(--text);padding:10px 12px}.security-status{margin:0;color:var(--muted);font-size:.85rem}.e2e-badge{display:inline-flex;align-items:center;vertical-align:middle;color:var(--accent);opacity:.85;margin-left:4px}.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--text)}.imx-emoji-picker{display:grid;gap:8px;padding:10px;border:1px solid var(--line);border-radius:18px;background:color-mix(in srgb,var(--bg-2) 94%,transparent);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);max-height:280px;margin-bottom:8px}.imx-emoji-cats{display:flex;gap:4px;overflow-x:auto;padding-bottom:2px}.imx-emoji-cat{min-width:36px;height:36px;border-radius:12px;border:1px solid transparent;background:transparent;font-size:1.1rem;display:grid;place-items:center}.imx-emoji-cat:hover,.imx-emoji-cat:focus-visible{background:var(--accent-soft, color-mix(in srgb, var(--accent) 14%, transparent));border-color:color-mix(in srgb,var(--accent) 35%,transparent)}.imx-emoji-scroll{overflow:auto;max-height:210px;display:grid;gap:10px}.imx-emoji-label{margin:0 0 4px;font-size:.72rem;font-weight:700;letter-spacing:.04em;text-transform:uppercase;color:var(--muted)}.imx-emoji-grid{display:grid;grid-template-columns:repeat(8,minmax(0,1fr));gap:2px}.imx-emoji-grid .emoji-btn{font-family:"Segoe UI Emoji","Apple Color Emoji","Noto Color Emoji",sans-serif;font-size:1.25rem}.call-note{font-size:.88rem;color:var(--muted);font-weight:600}.bundle:has(.call-note){justify-content:center;max-width:100%}.bundle:has(.call-note) .avatar,.bundle:has(.call-note) .who{display:none}.bundle:has(.call-note) .bubble{background:color-mix(in srgb,var(--surface) 88%,transparent);border:1px dashed var(--line);color:var(--muted);margin-inline:auto}@media (max-width: 480px){.composer .icon-btn[aria-label="Search messages"],.composer .icon-btn[aria-label="Send video"]{display:none}.color-grid{grid-template-columns:1fr}.imx-emoji-grid{grid-template-columns:repeat(7,minmax(0,1fr))}}