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(width>=769px){.app-header{padding:0 16px}.sidebar-search input{padding:10px 14px 10px 40px}.conversation-item{padding:10px 12px}.conversation-item-name{font-size:13px}.conversation-item-preview{font-size:12px}.chat-header{padding:0 16px}.composer{padding:8px 12px}}@media (width<=768px){.main-layout{grid-template-columns:1fr}.main-layout .sidebar{display:none}.main-layout.show-sidebar .sidebar{grid-column:1;width:100vw;display:flex}.main-layout.show-sidebar .chat-area{display:none}.mobile-back-btn{display:flex}.message-row{max-width:85%}.sidebar-tabs{padding:0}.conversation-item{padding:12px}.composer-row{gap:4px}.conversation-item{min-height:64px;padding:14px 16px}.contact-list-item{min-height:56px;padding:14px 16px}.emoji-picker{width:100%;max-height:none;box-shadow:none;background:0 0;border:none;border-radius:0;position:static}button,a,input,textarea,[role=button]{touch-action:manipulation}}:root{--surface:#f8f9fb;--surface-container-lowest:#fff;--surface-container-low:#f2f4f5;--surface-container:#eceef0;--surface-container-high:#e6e8ea;--surface-container-highest:#e1e3e4;--surface-dim:#d8dadc;--surface-bright:#f8f9fb;--surface-tint:#18677c;--surface-variant:#e1e3e4;--primary:#004353;--primary-container:#005c71;--on-primary:#fff;--on-primary-container:#8fd2eb;--primary-fixed:#b5ebff;--primary-fixed-dim:#8dd0e8;--on-primary-fixed:#001f28;--on-primary-fixed-variant:#004e60;--secondary:#536167;--secondary-container:#d6e5ec;--on-secondary:#fff;--on-secondary-container:#58676d;--secondary-fixed:#d6e5ec;--secondary-fixed-dim:#bac9d0;--on-secondary-fixed:#101d23;--on-secondary-fixed-variant:#3b494f;--tertiary:#00453d;--tertiary-container:#005f54;--on-tertiary:#fff;--on-tertiary-container:#60dcc8;--tertiary-fixed:#7cf7e2;--tertiary-fixed-dim:#5ddac6;--on-tertiary-fixed:#00201c;--on-tertiary-fixed-variant:#005047;--error:#ba1a1a;--error-container:#ffdad6;--on-error:#fff;--on-error-container:#93000a;--on-surface:#191c1e;--on-surface-variant:#3f484c;--on-background:#191c1e;--outline:#70787c;--outline-variant:#bfc8cc;--inverse-surface:#2e3132;--inverse-on-surface:#eff1f3;--inverse-primary:#8dd0e8;--font-headline:"Manrope", sans-serif;--font-body:"Inter", sans-serif;--font-label:"Inter", sans-serif;--font-mono:"SF Mono", "Fira Code", "Fira Mono", "Roboto Mono", monospace;--text-display:3rem;--text-headline-lg:2.25rem;--text-headline-md:1.5rem;--text-title-lg:1.125rem;--text-body-lg:1.125rem;--text-body:.875rem;--text-label-md:.75rem;--text-label-sm:.6875rem;--text-label-xs:.625rem;--text-label-xxs:.5625rem;--radius-sm:.125rem;--radius-md:.25rem;--radius-lg:.5rem;--radius-xl:.75rem;--radius-full:9999px;--transition-fast:.15s ease;--transition-normal:.25s ease;--transition-slow:.5s ease;--sidebar-width:320px;--header-height:64px;--composer-min-height:48px}*,:before,:after{box-sizing:border-box;margin:0;padding:0}html,body,#root{height:100%;overflow:hidden}body{font-family:var(--font-body);font-size:var(--text-body);color:var(--on-surface);background:var(--surface);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;line-height:1.5}input,textarea,button,select{font-family:inherit;font-size:inherit;color:inherit}a{color:var(--primary);text-decoration:none}a:hover{text-decoration:underline}.editorial-gradient{background:linear-gradient(135deg, var(--primary) 0%, var(--primary-container) 100%)}.glass-effect{-webkit-backdrop-filter:blur(20px);background:#f8f9fb99}.material-symbols-outlined{font-variation-settings:"FILL" 0, "wght" 400, "GRAD" 0, "opsz" 24;vertical-align:middle;user-select:none}.material-symbols-outlined.filled{font-variation-settings:"FILL" 1, "wght" 400, "GRAD" 0, "opsz" 24}::-webkit-scrollbar{width:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--outline-variant);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--outline)}::selection{background:var(--primary-fixed);color:var(--on-primary-fixed)}@media (width<=1024px) and (width>=769px){:root{--sidebar-width:280px}}@media (width<=768px){:root{--sidebar-width:100vw}}.bottom-sheet-backdrop{z-index:200;background:#00000080;position:fixed;inset:0}.bottom-sheet{max-height:min(85vh, calc(100vh - env(safe-area-inset-top,0px) - 20px));background:var(--surface-container-low);z-index:201;padding-bottom:env(safe-area-inset-bottom,0px);border-radius:16px 16px 0 0;flex-direction:column;display:flex;position:fixed;bottom:0;left:0;right:0}.bottom-sheet-handle-area{cursor:grab;touch-action:none;justify-content:center;padding:12px 0 8px;display:flex}.bottom-sheet-handle{background:var(--outline-variant);border-radius:2px;width:36px;height:4px}.bottom-sheet-title{font-family:var(--font-headline);font-size:var(--text-title-lg);color:var(--on-surface);padding:0 16px 12px;font-weight:700}.bottom-sheet-content{flex:1;padding:0 16px 16px;overflow-y:auto}.fab{background:var(--primary-container);width:56px;height:56px;color:var(--on-primary-container);z-index:100;cursor:pointer;touch-action:manipulation;border:none;border-radius:28px;justify-content:center;align-items:center;transition:transform .1s,box-shadow .1s;display:flex;position:fixed;bottom:24px;right:16px;box-shadow:0 4px 12px #00000026}.fab:active{transform:scale(.92);box-shadow:0 2px 6px #0003}.fab .material-symbols-outlined{font-size:24px}.mobile-overflow-backdrop{z-index:150;position:fixed;inset:0}.mobile-overflow-menu{background:var(--surface-container);border-radius:var(--radius-lg);z-index:151;min-width:200px;position:absolute;top:100%;right:0;overflow:hidden;box-shadow:0 8px 24px #0000001f}.mobile-overflow-item{color:var(--on-surface);font-size:var(--text-body-md);font-family:var(--font-body);text-align:left;cursor:pointer;touch-action:manipulation;background:0 0;border:none;align-items:center;gap:12px;width:100%;padding:14px 16px;display:flex}.mobile-overflow-item:active{background:var(--surface-container-high)}.mobile-overflow-item .material-symbols-outlined{color:var(--on-surface-variant);font-size:20px}.mobile-overflow-item.danger,.mobile-overflow-item.danger .material-symbols-outlined{color:var(--error)}.mobile-context-reactions{justify-content:center;gap:4px;padding:8px 0 16px;display:flex}.mobile-context-reactions button{background:var(--surface-container);cursor:pointer;touch-action:manipulation;border:none;border-radius:50%;justify-content:center;align-items:center;width:44px;height:44px;font-size:20px;display:flex}.mobile-context-reactions button:active{background:var(--surface-container-high)}.mobile-context-action{color:var(--on-surface);font-size:var(--text-body-md);font-family:var(--font-body);text-align:left;cursor:pointer;border:none;border-top:1px solid var(--outline-variant);touch-action:manipulation;background:0 0;align-items:center;gap:12px;width:100%;padding:14px 0;display:flex}.mobile-context-action:first-of-type{border-top:none}.mobile-context-action:active{background:var(--surface-container-high)}.mobile-context-action .material-symbols-outlined{color:var(--on-surface-variant);font-size:20px}.mobile-context-action.danger,.mobile-context-action.danger .material-symbols-outlined{color:var(--error)}@media (width<=768px){.modal-fullscreen-mobile .modal-overlay{background:var(--surface)}.modal-fullscreen-mobile .modal{border-radius:0;flex-direction:column;width:100%;max-width:none;height:100%;max-height:none;display:flex}.mobile-modal-header{border-bottom:1px solid var(--outline-variant);align-items:center;gap:12px;padding:12px 16px;display:flex}.mobile-modal-header h2{font-size:var(--text-title-lg);flex:1;margin:0}.mobile-modal-body{flex:1;padding:16px;overflow-y:auto}.mobile-modal-footer{padding:16px;padding-bottom:calc(16px + env(safe-area-inset-bottom,0px))}.swipe-reply-indicator{opacity:0;color:var(--primary);transition:opacity .15s;position:absolute;top:50%;left:8px;transform:translateY(-50%)}.swipe-reply-indicator.visible{opacity:1}.swipe-reply-indicator .material-symbols-outlined{font-size:20px}.composer-btn{min-width:44px;min-height:44px}.composer-textarea{font-size:16px!important}.auth-view{padding:16px}.auth-hero h1{font-size:clamp(1.8rem,6vw,3rem)}.auth-privacy-footer{flex-direction:column}.auth-bg-decoration{display:none}.chat-empty>div[style*=grid-template-columns]{grid-template-columns:1fr!important}.sidebar .sidebar-actions,.sidebar .user-profile{display:none}.message-list{touch-action:pan-y;-webkit-overflow-scrolling:touch}.message-row{touch-action:pan-y;position:relative}}