:root{--color-primary: #4F46E5;--color-primary-light: #6366F1;--color-primary-dark: #4338CA;--color-primary-soft: rgba(79, 70, 229, .08);--color-primary-glow: rgba(99, 102, 241, .25);--gradient-primary: linear-gradient(135deg, #4F46E5, #7C3AED);--gradient-sidebar: linear-gradient(180deg, #312E81, #4338CA);--gradient-header: linear-gradient(135deg, #4F46E5 0%, #6366F1 100%);--gradient-send-btn: linear-gradient(135deg, #4F46E5, #7C3AED);--gradient-login: linear-gradient(135deg, #312E81 0%, #4F46E5 50%, #7C3AED 100%);--color-bg: #F8F9FC;--color-surface: #FFFFFF;--color-surface-hover: #F1F3F9;--color-surface-active: #EEF0F8;--color-input-bg: #F1F3F9;--color-text: #1A1D2E;--color-text-secondary: #6B7094;--color-text-muted: #9CA0B8;--color-text-on-primary: #FFFFFF;--color-border: #E4E7F1;--color-border-light: #EDEDF5;--color-divider: rgba(0, 0, 0, .04);--color-success: #10B981;--color-danger: #EF4444;--color-warning: #F59E0B;--color-info: #3B82F6;--bg-message-own: var(--gradient-primary);--bg-message-own-solid: #4F46E5;--text-message-own: #FFFFFF;--bg-message-other: #FFFFFF;--text-message-other: #1A1D2E;--shadow-xs: 0 1px 2px rgba(16, 24, 40, .04);--shadow-sm: 0 1px 3px rgba(16, 24, 40, .06), 0 1px 2px rgba(16, 24, 40, .04);--shadow-md: 0 4px 8px -2px rgba(16, 24, 40, .08), 0 2px 4px -2px rgba(16, 24, 40, .04);--shadow-lg: 0 12px 24px -4px rgba(16, 24, 40, .1), 0 4px 8px -2px rgba(16, 24, 40, .04);--shadow-xl: 0 24px 48px -12px rgba(16, 24, 40, .18);--shadow-glow: 0 0 20px rgba(79, 70, 229, .15);--shadow-glow-lg: 0 0 40px rgba(79, 70, 229, .2);--radius-sm: 8px;--radius-md: 12px;--radius-lg: 20px;--radius-xl: 24px;--radius-full: 9999px;--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-base: .2s cubic-bezier(.4, 0, .2, 1);--transition-smooth: .3s cubic-bezier(.4, 0, .2, 1);--transition-spring: .4s cubic-bezier(.34, 1.56, .64, 1);font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;line-height:1.5;font-weight:400;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color-scheme:light;color:var(--color-text);background-color:var(--color-bg);--login-overlay-bg: rgba(0, 0, 0, .6);--login-card-bg: rgba(255, 255, 255, .95);--login-border: 1px solid rgba(255, 255, 255, .2);--login-text: #1A1D2E;--login-input-bg: #F1F3F9;--login-input-text: #1A1D2E;--login-btn-bg: var(--gradient-primary);--login-btn-text: #FFFFFF;--login-btn-hover-bg: var(--gradient-primary);--login-btn-hover-text: #FFFFFF;--color-btn-primary: #4F46E5;--color-olive-dark: #4F46E5;--color-olive-light: #6366F1;--color-cream-bg: #F8F9FC;--color-white: #FFFFFF;--color-text-dark: #1A1D2E;--color-text-light: #6B7094;--color-accent-gold: #F59E0B}.theme-emerald{--color-primary: #059669;--color-primary-light: #34D399;--color-primary-dark: #047857;--color-primary-soft: rgba(5, 150, 105, .08);--color-primary-glow: rgba(52, 211, 153, .25);--gradient-primary: linear-gradient(135deg, #059669, #10B981);--gradient-sidebar: linear-gradient(180deg, #064E3B, #047857);--gradient-header: linear-gradient(135deg, #059669 0%, #34D399 100%);--gradient-send-btn: linear-gradient(135deg, #059669, #10B981);--gradient-login: linear-gradient(135deg, #064E3B 0%, #059669 50%, #10B981 100%);--color-bg: #F0FDF4;--color-surface: #FFFFFF;--color-surface-hover: #ECFDF5;--color-surface-active: #D1FAE5;--color-input-bg: #F0FDF4;--color-text: #1A2E1A;--color-text-secondary: #4B7A56;--color-text-muted: #86A892;--color-border: #D1FAE5;--color-border-light: #E6F7EC;--bg-message-own: var(--gradient-primary);--bg-message-own-solid: #059669;--text-message-own: #FFFFFF;--bg-message-other: #FFFFFF;--text-message-other: #1A2E1A;--shadow-glow: 0 0 20px rgba(5, 150, 105, .15);--shadow-glow-lg: 0 0 40px rgba(5, 150, 105, .2);background-color:#e8f8ee;--login-overlay-bg: rgba(0, 0, 0, .6);--login-card-bg: rgba(255, 255, 255, .95);--login-border: 1px solid rgba(255, 255, 255, .2);--login-text: #1A2E1A;--login-input-bg: #F0FDF4;--login-input-text: #1A2E1A;--login-btn-bg: var(--gradient-primary);--login-btn-text: #FFFFFF;--color-btn-primary: #059669;--color-olive-dark: #059669;--color-olive-light: #34D399}.theme-dark{--color-primary: #818CF8;--color-primary-light: #A5B4FC;--color-primary-dark: #6366F1;--color-primary-soft: rgba(129, 140, 248, .1);--color-primary-glow: rgba(129, 140, 248, .2);--gradient-primary: linear-gradient(135deg, #6366F1, #8B5CF6);--gradient-sidebar: linear-gradient(180deg, #1E1B4B, #312E81);--gradient-header: linear-gradient(135deg, #4338CA 0%, #6366F1 100%);--gradient-send-btn: linear-gradient(135deg, #6366F1, #8B5CF6);--gradient-login: linear-gradient(135deg, #1E1B4B 0%, #312E81 50%, #4338CA 100%);--color-bg: #0F0F1A;--color-surface: #1A1A2E;--color-surface-hover: #252540;--color-surface-active: #2D2D4A;--color-input-bg: #252540;--color-text: #E8E8F0;--color-text-secondary: #9CA0C0;--color-text-muted: #6B6F8F;--color-text-on-primary: #FFFFFF;--color-border: #2D2D4A;--color-border-light: #363660;--color-divider: rgba(255, 255, 255, .06);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .2), 0 1px 2px rgba(0, 0, 0, .15);--shadow-md: 0 4px 8px -2px rgba(0, 0, 0, .25), 0 2px 4px -2px rgba(0, 0, 0, .15);--shadow-lg: 0 12px 24px -4px rgba(0, 0, 0, .3), 0 4px 8px -2px rgba(0, 0, 0, .15);--bg-message-own: var(--gradient-primary);--bg-message-own-solid: #6366F1;--text-message-own: #FFFFFF;--bg-message-other: #1A1A2E;--text-message-other: #E8E8F0;background-color:#0a0a14;--login-overlay-bg: rgba(0, 0, 0, .75);--login-card-bg: rgba(26, 26, 46, .95);--login-border: 1px solid rgba(99, 102, 241, .2);--login-text: #E8E8F0;--login-input-bg: #252540;--login-input-text: #E8E8F0;--login-btn-bg: var(--gradient-primary);--login-btn-text: #FFFFFF;--login-btn-hover-bg: var(--gradient-primary);--login-btn-hover-text: #FFFFFF;--color-olive-dark: #818CF8;--color-olive-light: #6366F1;--color-cream-bg: #0F0F1A;--color-white: #1A1A2E;--color-text-dark: #E8E8F0;--color-text-light: #9CA0C0;--color-btn-primary: #6366F1}.theme-rose{--color-primary: #E11D48;--color-primary-light: #FB7185;--color-primary-dark: #BE123C;--color-primary-soft: rgba(225, 29, 72, .08);--color-primary-glow: rgba(251, 113, 133, .25);--gradient-primary: linear-gradient(135deg, #E11D48, #F43F5E);--gradient-sidebar: linear-gradient(180deg, #881337, #BE123C);--gradient-header: linear-gradient(135deg, #E11D48 0%, #FB7185 100%);--gradient-send-btn: linear-gradient(135deg, #E11D48, #F43F5E);--gradient-login: linear-gradient(135deg, #881337 0%, #E11D48 50%, #FB7185 100%);--color-bg: #FFF1F2;--color-surface: #FFFFFF;--color-surface-hover: #FFE4E6;--color-surface-active: #FECDD3;--color-input-bg: #FFF1F2;--color-text: #2E1A1E;--color-text-secondary: #7A4B56;--color-text-muted: #B08090;--color-border: #FECDD3;--color-border-light: #FFE4E6;--bg-message-own: var(--gradient-primary);--bg-message-own-solid: #E11D48;--text-message-own: #FFFFFF;--bg-message-other: #FFFFFF;--text-message-other: #2E1A1E;--shadow-glow: 0 0 20px rgba(225, 29, 72, .15);--shadow-glow-lg: 0 0 40px rgba(225, 29, 72, .2);background-color:#fce7e9;--login-overlay-bg: rgba(0, 0, 0, .6);--login-card-bg: rgba(255, 255, 255, .95);--login-border: 1px solid rgba(255, 255, 255, .2);--login-text: #2E1A1E;--login-input-bg: #FFF1F2;--login-input-text: #2E1A1E;--login-btn-bg: var(--gradient-primary);--login-btn-text: #FFFFFF;--color-btn-primary: #E11D48}.theme-amber{--color-primary: #D97706;--color-primary-light: #FBBF24;--color-primary-dark: #B45309;--color-primary-soft: rgba(217, 119, 6, .08);--color-primary-glow: rgba(251, 191, 36, .25);--gradient-primary: linear-gradient(135deg, #D97706, #F59E0B);--gradient-sidebar: linear-gradient(180deg, #78350F, #B45309);--gradient-header: linear-gradient(135deg, #D97706 0%, #FBBF24 100%);--gradient-send-btn: linear-gradient(135deg, #D97706, #F59E0B);--gradient-login: linear-gradient(135deg, #78350F 0%, #D97706 50%, #FBBF24 100%);--color-bg: #FFFBEB;--color-surface: #FFFFFF;--color-surface-hover: #FEF3C7;--color-surface-active: #FDE68A;--color-input-bg: #FFFBEB;--color-text: #2E2A1A;--color-text-secondary: #7A6B4B;--color-text-muted: #B0A080;--color-border: #FDE68A;--color-border-light: #FEF3C7;--bg-message-own: var(--gradient-primary);--bg-message-own-solid: #D97706;--text-message-own: #FFFFFF;--bg-message-other: #FFFFFF;--text-message-other: #2E2A1A;--shadow-glow: 0 0 20px rgba(217, 119, 6, .15);--shadow-glow-lg: 0 0 40px rgba(217, 119, 6, .2);background-color:#fdf5e0;--login-overlay-bg: rgba(0, 0, 0, .6);--login-card-bg: rgba(255, 255, 255, .95);--login-border: 1px solid rgba(255, 255, 255, .2);--login-text: #2E2A1A;--login-input-bg: #FFFBEB;--login-input-text: #2E2A1A;--login-btn-bg: var(--gradient-primary);--login-btn-text: #FFFFFF;--color-btn-primary: #D97706}.theme-cyan{--color-primary: #0891B2;--color-primary-light: #22D3EE;--color-primary-dark: #0E7490;--color-primary-soft: rgba(8, 145, 178, .08);--color-primary-glow: rgba(34, 211, 238, .25);--gradient-primary: linear-gradient(135deg, #0891B2, #06B6D4);--gradient-sidebar: linear-gradient(180deg, #164E63, #0E7490);--gradient-header: linear-gradient(135deg, #0891B2 0%, #22D3EE 100%);--gradient-send-btn: linear-gradient(135deg, #0891B2, #06B6D4);--gradient-login: linear-gradient(135deg, #164E63 0%, #0891B2 50%, #22D3EE 100%);--color-bg: #ECFEFF;--color-surface: #FFFFFF;--color-surface-hover: #CFFAFE;--color-surface-active: #A5F3FC;--color-input-bg: #ECFEFF;--color-text: #1A2E2E;--color-text-secondary: #4B7A7A;--color-text-muted: #80B0B0;--color-border: #A5F3FC;--color-border-light: #CFFAFE;--bg-message-own: var(--gradient-primary);--bg-message-own-solid: #0891B2;--text-message-own: #FFFFFF;--bg-message-other: #FFFFFF;--text-message-other: #1A2E2E;--shadow-glow: 0 0 20px rgba(8, 145, 178, .15);--shadow-glow-lg: 0 0 40px rgba(8, 145, 178, .2);background-color:#e0f7fa;--login-overlay-bg: rgba(0, 0, 0, .6);--login-card-bg: rgba(255, 255, 255, .95);--login-border: 1px solid rgba(255, 255, 255, .2);--login-text: #1A2E2E;--login-input-bg: #ECFEFF;--login-input-text: #1A2E2E;--login-btn-bg: var(--gradient-primary);--login-btn-text: #FFFFFF;--color-btn-primary: #0891B2}.theme-sunset{--color-primary: #F97316;--color-primary-light: #FB923C;--color-primary-dark: #EA580C;--color-primary-soft: rgba(249, 115, 22, .12);--color-primary-glow: rgba(251, 146, 60, .25);--gradient-primary: linear-gradient(135deg, #EA580C, #F97316);--gradient-sidebar: linear-gradient(180deg, #1C1412, #2D1F1A);--gradient-header: linear-gradient(135deg, #EA580C 0%, #F97316 100%);--gradient-send-btn: linear-gradient(135deg, #EA580C, #F97316);--gradient-login: linear-gradient(135deg, #1C1412 0%, #EA580C 50%, #F97316 100%);--color-bg: #1A1210;--color-surface: #2D1F1A;--color-surface-hover: #3D2A22;--color-surface-active: #4D352A;--color-input-bg: #2D1F1A;--color-text: #F5E6DC;--color-text-secondary: #C0A090;--color-text-muted: #8A7060;--color-text-on-primary: #FFFFFF;--color-border: #3D2A22;--color-border-light: #4D352A;--color-divider: rgba(255, 255, 255, .06);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .3);--shadow-md: 0 4px 8px rgba(0, 0, 0, .35);--shadow-lg: 0 12px 24px rgba(0, 0, 0, .4);--shadow-glow: 0 0 20px rgba(249, 115, 22, .2);--shadow-glow-lg: 0 0 40px rgba(249, 115, 22, .25);--bg-message-own: var(--gradient-primary);--bg-message-own-solid: #EA580C;--text-message-own: #FFFFFF;--bg-message-other: #2D1F1A;--text-message-other: #F5E6DC;background-color:#140e0c;--login-overlay-bg: rgba(0, 0, 0, .8);--login-card-bg: rgba(45, 31, 26, .95);--login-border: 1px solid rgba(249, 115, 22, .2);--login-text: #F5E6DC;--login-input-bg: #3D2A22;--login-input-text: #F5E6DC;--login-btn-bg: var(--gradient-primary);--login-btn-text: #FFFFFF;--color-btn-primary: #F97316}.theme-midnight{--color-primary: #3B82F6;--color-primary-light: #60A5FA;--color-primary-dark: #2563EB;--color-primary-soft: rgba(59, 130, 246, .1);--color-primary-glow: rgba(96, 165, 250, .2);--gradient-primary: linear-gradient(135deg, #2563EB, #3B82F6);--gradient-sidebar: linear-gradient(180deg, #0C1629, #111D38);--gradient-header: linear-gradient(135deg, #2563EB 0%, #60A5FA 100%);--gradient-send-btn: linear-gradient(135deg, #2563EB, #3B82F6);--gradient-login: linear-gradient(135deg, #0C1629 0%, #2563EB 50%, #60A5FA 100%);--color-bg: #0F172A;--color-surface: #1E293B;--color-surface-hover: #273548;--color-surface-active: #334155;--color-input-bg: #1E293B;--color-text: #E2E8F0;--color-text-secondary: #94A3B8;--color-text-muted: #64748B;--color-text-on-primary: #FFFFFF;--color-border: #334155;--color-border-light: #3B4A60;--color-divider: rgba(255, 255, 255, .06);--shadow-sm: 0 1px 3px rgba(0, 0, 0, .3);--shadow-md: 0 4px 8px rgba(0, 0, 0, .35);--shadow-lg: 0 12px 24px rgba(0, 0, 0, .4);--shadow-glow: 0 0 20px rgba(59, 130, 246, .2);--shadow-glow-lg: 0 0 40px rgba(59, 130, 246, .25);--bg-message-own: var(--gradient-primary);--bg-message-own-solid: #2563EB;--text-message-own: #FFFFFF;--bg-message-other: #1E293B;--text-message-other: #E2E8F0;background-color:#0b1120;--login-overlay-bg: rgba(0, 0, 0, .8);--login-card-bg: rgba(30, 41, 59, .95);--login-border: 1px solid rgba(59, 130, 246, .2);--login-text: #E2E8F0;--login-input-bg: #273548;--login-input-text: #E2E8F0;--login-btn-bg: var(--gradient-primary);--login-btn-text: #FFFFFF;--color-btn-primary: #3B82F6}.font-small{font-size:14px}.font-medium{font-size:16px}.font-large{font-size:18px}*{box-sizing:border-box}body{margin:0;display:flex;min-width:320px;min-height:100vh;background-color:var(--color-bg)}#root{width:100%}.app-container{width:100%;height:100vh;display:flex}::-webkit-scrollbar{width:5px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:10px}::-webkit-scrollbar-thumb:hover{background:var(--color-text-muted)}h1,h2,h3,h4,h5,h6{margin:0;font-weight:600;letter-spacing:-.01em}h1{font-weight:700;letter-spacing:-.02em}h2{font-weight:700;letter-spacing:-.015em}button{cursor:pointer;border:none;background:none;font-family:inherit}@keyframes slideInUp{0%{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}@keyframes slideInLeft{0%{opacity:0;transform:translate(-12px)}to{opacity:1;transform:translate(0)}}@keyframes slideInRight{0%{opacity:0;transform:translate(12px)}to{opacity:1;transform:translate(0)}}@keyframes scaleIn{0%{opacity:0;transform:scale(.95)}to{opacity:1;transform:scale(1)}}@keyframes shimmer{0%{background-position:-200% 0}to{background-position:200% 0}}@keyframes pulse-glow{0%,to{box-shadow:0 0 0 0 var(--color-primary-glow)}50%{box-shadow:0 0 0 8px transparent}}.message-container{display:flex;margin-bottom:4px;width:100%;animation:messageIn .25s ease-out}@keyframes messageIn{0%{opacity:0;transform:translateY(8px)}to{opacity:1;transform:translateY(0)}}.own-message{justify-content:flex-end}.other-message{justify-content:flex-start}.message-image{max-width:100%;max-height:300px;border-radius:var(--radius-md);object-fit:cover;cursor:pointer}.message-audio-container{margin-top:4px;min-width:200px}.message-audio{width:100%;height:36px;border-radius:20px}.message-bubble{max-width:65%;padding:10px 16px;border-radius:18px;position:relative;word-wrap:break-word;font-size:.92rem;line-height:1.55;transition:box-shadow var(--transition-fast)}.message-bubble:hover{box-shadow:var(--shadow-sm)}.own-message .message-bubble{background:var(--bg-message-own);background-color:var(--bg-message-own-solid);color:var(--text-message-own);border-bottom-right-radius:6px;box-shadow:0 2px 8px #4f46e526}.own-message .message-bubble:hover{box-shadow:0 4px 12px #4f46e540}.other-message .message-bubble{background-color:var(--bg-message-other);color:var(--text-message-other, var(--color-text));border-bottom-left-radius:6px;border:1px solid var(--color-border-light)}.sequence-message{margin-top:-2px;margin-bottom:2px}.sequence-message .message-bubble{border-top-right-radius:6px}.message-sender{font-size:.72rem;font-weight:600;margin-bottom:3px;display:block;letter-spacing:.02em}.own-message .message-sender{display:none}.other-message .message-sender{color:var(--color-primary)}.message-text{margin:0;line-height:1.55}.message-timestamp{font-size:.65rem;margin-top:4px;text-align:right;font-weight:400}.own-message .message-timestamp{color:#ffffffa6}.other-message .message-timestamp{color:var(--color-text-muted)}.message-image-container img{border-radius:var(--radius-md);max-width:100%;box-shadow:var(--shadow-xs)}.message-file-link a{color:inherit;font-weight:500;text-decoration:underline;text-decoration-color:#ffffff4d}.other-message .message-file-link a{text-decoration-color:var(--color-primary-glow);color:var(--color-primary)}.system-message-container{justify-content:center}.system-message-text{background-color:var(--color-surface-hover);padding:6px 16px;border-radius:var(--radius-full);font-size:.75rem;color:var(--color-text-muted);font-weight:500;border:1px solid var(--color-border-light)}.middle-panel{width:320px;min-width:320px;max-width:320px;flex:0 0 320px;background-color:var(--color-bg);display:flex;flex-direction:column;padding:20px;border-right:1px solid var(--color-border-light);position:relative}.search-container{margin-bottom:20px;margin-top:10px}.sidebar-search-bar{display:flex;align-items:center;background-color:var(--color-surface);height:44px;padding:0 14px;border-radius:var(--radius-md);box-shadow:var(--shadow-xs);border:1px solid var(--color-border-light);transition:all var(--transition-base)}.sidebar-search-bar:focus-within{border-color:var(--color-primary-light);box-shadow:var(--shadow-sm),0 0 0 3px var(--color-primary-glow)}.sidebar-search-icon{margin-right:12px;color:var(--color-text-muted);display:flex;align-items:center;justify-content:center;flex-shrink:0}.sidebar-search-bar input{border:none;outline:none;background:transparent;flex:1;min-width:0;height:100%;padding:0;margin:0;font-size:.95rem;color:var(--color-text);font-weight:400;line-height:normal}.sidebar-search-bar input::placeholder{color:var(--color-text-muted)}.lists-container{flex:1;overflow-y:auto;display:flex;flex-direction:column;gap:24px;padding-right:4px}.section-header h3{font-size:.75rem;color:var(--color-text-muted);margin-bottom:12px;font-weight:600;text-transform:uppercase;letter-spacing:.08em}.item-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:4px}.list-item{display:flex;align-items:center;padding:10px 12px;border-radius:var(--radius-md);background-color:transparent;cursor:pointer;transition:all var(--transition-base);position:relative;border:1px solid transparent}.list-item:hover{background-color:var(--color-surface);box-shadow:var(--shadow-sm);border-color:var(--color-border-light)}.list-item.active{background-color:var(--color-primary-soft);border-color:#4f46e526;border-left:3px solid var(--color-primary)}.list-item.active .item-name{color:var(--color-primary);font-weight:600}.item-avatar{width:42px;height:42px;border-radius:50%;margin-right:12px;overflow:hidden;display:flex;align-items:center;justify-content:center;flex-shrink:0}.create-avatar{background:var(--gradient-primary);color:#fff;font-size:1.2rem;font-weight:600;border-radius:50%;display:flex;align-items:center;justify-content:center}.item-avatar img{width:100%;height:100%;object-fit:cover}.item-info{display:flex;flex-direction:column;justify-content:center;flex:1;overflow:hidden}.item-name{font-weight:500;font-size:.9rem;color:var(--color-text);margin-bottom:2px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:flex;align-items:center;gap:6px}.item-subtext{font-size:.75rem;color:var(--color-text-muted);font-weight:400}.online-indicator{width:10px;height:10px;background-color:var(--color-success);border-radius:50%;border:2px solid var(--color-surface);position:absolute;right:12px;bottom:14px;box-shadow:0 0 6px #10b98166}.online-indicator.dnd{background-color:var(--color-warning)!important;box-shadow:0 0 6px #f59e0b66}.unread-badge{font-size:.7rem;color:var(--color-danger);font-weight:600;margin-top:2px;display:block;animation:fadeIn .3s ease}@keyframes fadeIn{0%{opacity:0;transform:translateY(-2px)}to{opacity:1;transform:translateY(0)}}.pin-action{display:none;cursor:pointer;padding:4px;border-radius:50%;font-size:.9rem;margin-left:8px;color:var(--color-text-muted);transition:all var(--transition-fast)}.pin-action:hover{background-color:var(--color-primary-soft);color:var(--color-primary)}.list-item:hover .pin-action{display:block}@media(max-width:768px){.pin-action{display:block;opacity:.6}}.pinned-icon-small{font-size:.65rem;color:var(--color-primary)}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background-color:#00000080;display:flex;justify-content:center;align-items:center;z-index:1000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);animation:fadeIn .15s ease}.modal-content{background-color:var(--color-surface);padding:28px;border-radius:var(--radius-xl);width:90%;max-width:420px;box-shadow:var(--shadow-xl);border:1px solid var(--color-border);animation:modalPop .3s cubic-bezier(.34,1.56,.64,1)}@keyframes modalPop{0%{transform:scale(.92) translateY(10px);opacity:0}to{transform:scale(1) translateY(0);opacity:1}}.modal-content h3{font-size:1.3rem;color:var(--color-text);margin-top:0;margin-bottom:24px;padding-bottom:16px;border-bottom:1px solid var(--color-border-light);font-weight:700;letter-spacing:-.01em}.form-group{margin-bottom:20px}.form-group label{display:block;font-weight:500;margin-bottom:8px;color:var(--color-text-secondary);font-size:.85rem;text-transform:uppercase;letter-spacing:.05em}.form-group input{width:100%;padding:11px 14px;border-radius:var(--radius-sm);border:1px solid var(--color-border);background-color:var(--color-input-bg);color:var(--color-text);font-family:inherit;font-size:.95rem;transition:all var(--transition-base)}.form-group input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-glow)}.modal-actions{display:flex;justify-content:flex-end;gap:12px;margin-top:28px;padding-top:20px;border-top:1px solid var(--color-border-light)}.btn-secondary{background:transparent;border:1px solid var(--color-border);color:var(--color-text);padding:10px 20px;border-radius:var(--radius-sm);cursor:pointer;font-weight:500;font-size:.9rem;transition:all var(--transition-fast)}.btn-secondary:hover{background-color:var(--color-surface-hover);border-color:var(--color-text-muted)}.btn-primary{background:var(--gradient-primary);border:none;color:#fff;padding:10px 22px;border-radius:var(--radius-sm);cursor:pointer;font-weight:600;font-size:.9rem;transition:all var(--transition-base);box-shadow:0 2px 8px #4f46e533}.btn-primary:hover{transform:translateY(-1px);box-shadow:0 4px 16px #4f46e54d}.btn-primary:active{transform:translateY(0)}.radio-group{display:flex;gap:12px}.radio-option{flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;padding:16px;border:1px solid var(--color-border);border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-base);background-color:var(--color-input-bg)}.radio-option:hover{border-color:var(--color-primary-light);background-color:var(--color-primary-soft)}.radio-option.selected{background-color:var(--color-primary-soft);border-color:var(--color-primary);color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-glow)}.radio-option input{display:none}.radio-icon{font-size:1.5rem}.main-sidebar{width:72px;background:var(--gradient-sidebar);display:flex;flex-direction:column;align-items:center;padding:20px 0;z-index:100;position:relative;overflow:visible}.main-sidebar:after{content:"";position:absolute;top:0;right:0;width:1px;height:100%;background:linear-gradient(180deg,transparent 0%,rgba(99,102,241,.3) 30%,rgba(139,92,246,.3) 70%,transparent 100%)}.nav-icons{display:flex;flex-direction:column;gap:8px;width:100%;align-items:center;flex:1;padding:0 8px}.nav-item{width:44px;height:44px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-md);cursor:pointer;transition:all var(--transition-base);color:#ffffff8c;position:relative}.nav-item:hover{background-color:#ffffff1a;color:#fff;transform:scale(1.05)}.nav-item.active{background-color:#ffffff2e;color:#fff;box-shadow:0 0 16px #6366f14d}.nav-item.active:before{content:"";position:absolute;left:-8px;width:3px;height:24px;background:#fff;border-radius:0 4px 4px 0;animation:slideInLeft .2s ease-out}.icon{font-size:1.3rem}.profile-item{margin-top:auto}.profile-initials{width:36px;height:36px;background:#ffffff26;-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);color:#fff;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:.85rem;border:2px solid rgba(255,255,255,.2);transition:all var(--transition-base)}.profile-initials:hover{background:#ffffff40;border-color:#fff6}.notification-badge{position:absolute;top:-4px;right:-4px;background:var(--color-danger);color:#fff;width:18px;height:18px;border-radius:50%;font-size:.65rem;display:flex;align-items:center;justify-content:center;border:2px solid #312E81;font-weight:700;animation:pulse-glow 2s infinite}.notification-dropdown{position:absolute;left:64px;top:0;width:300px;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:16px;cursor:default;z-index:1000;color:var(--color-text);animation:scaleIn .2s ease-out}.notification-dropdown h4{margin:0 0 12px;font-size:.95rem;font-weight:600;border-bottom:1px solid var(--color-border);padding-bottom:8px;color:var(--color-text)}.no-notes{color:var(--color-text-secondary);font-size:.9rem;text-align:center;padding:12px 0}.note-list{list-style:none;padding:0;margin:0;max-height:240px;overflow-y:auto}.note-item{padding:12px 0;border-bottom:1px solid var(--color-border-light)}.note-item:last-child{border-bottom:none}.note-item p{margin:0 0 8px;font-size:.9rem;line-height:1.4;color:var(--color-text)}.note-actions{display:flex;gap:8px}.btn-accept{background:var(--color-primary);color:#fff;border:none;padding:6px 14px;border-radius:var(--radius-sm);font-size:.8rem;font-weight:500;transition:all var(--transition-fast)}.btn-accept:hover{background:var(--color-primary-light);transform:translateY(-1px)}.btn-decline{background:var(--color-surface-hover);color:var(--color-text-secondary);border:none;padding:6px 14px;border-radius:var(--radius-sm);font-size:.8rem;font-weight:500;transition:all var(--transition-fast)}.btn-decline:hover{background:var(--color-surface-active)}.expired-text{color:var(--color-danger);font-size:.9rem;margin:0 0 8px}@media(max-width:768px){.main-sidebar{position:fixed;bottom:0;left:0;width:100%;height:64px;flex-direction:row;padding:0 16px;border-top:1px solid rgba(255,255,255,.1);justify-content:space-between;background:var(--gradient-sidebar);border-radius:0}.main-sidebar:after{display:none}.nav-icons{flex-direction:row;gap:0;width:100%;justify-content:space-around;height:100%;padding:0}.nav-item{width:auto;height:100%;flex:1;border-radius:0}.nav-item.active:before{display:none}.profile-item{margin:0}.notification-dropdown{left:auto;right:8px;bottom:72px;top:auto;width:300px;max-height:60vh}}.settings-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background:#00000080;display:flex;justify-content:center;align-items:center;z-index:2000;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);animation:fadeIn .15s ease}.settings-modal{background:var(--color-surface);width:90%;max-width:420px;border-radius:var(--radius-xl);box-shadow:var(--shadow-xl);overflow:hidden;animation:slideUp .3s cubic-bezier(.34,1.56,.64,1);color:var(--color-text);border:1px solid var(--color-border)}@keyframes slideUp{0%{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.settings-header{padding:1.2rem 1.5rem;border-bottom:1px solid var(--color-border-light);display:flex;justify-content:space-between;align-items:center;background:var(--color-surface)}.settings-header h2{margin:0;font-size:1.15rem;font-weight:700;color:var(--color-text);letter-spacing:-.01em}.close-btn{width:32px;height:32px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-sm);background:none;border:none;font-size:1.3rem;color:var(--color-text-muted);cursor:pointer;transition:all var(--transition-fast)}.close-btn:hover{color:var(--color-text);background-color:var(--color-surface-hover)}.settings-content{padding:1.5rem;display:flex;flex-direction:column;gap:1.5rem}.setting-item{display:flex;flex-direction:column;gap:.5rem}.setting-item label{font-size:.82rem;font-weight:600;color:var(--color-text-secondary);text-transform:uppercase;letter-spacing:.05em}.username-edit-container{display:flex;gap:8px;align-items:center}.classic-username-input{flex:1;padding:10px 14px;border:1px solid var(--color-border);border-radius:var(--radius-sm);background:var(--color-input-bg);color:var(--color-text);font-size:.95rem;transition:all var(--transition-base);font-family:inherit}.classic-username-input:focus{border-color:var(--color-primary);outline:none;box-shadow:0 0 0 3px var(--color-primary-glow)}.update-btn{padding:10px 18px;background:var(--gradient-primary);color:#fff;border:none;border-radius:var(--radius-sm);font-size:.85rem;font-weight:600;cursor:pointer;transition:all var(--transition-base);white-space:nowrap}.update-btn:disabled{background:var(--color-surface-hover);color:var(--color-text-muted);cursor:not-allowed;box-shadow:none}.update-btn:not(:disabled):hover{transform:translateY(-1px);box-shadow:0 4px 12px #4f46e540}select{padding:10px 14px;border-radius:var(--radius-sm);border:1px solid var(--color-border);background:var(--color-input-bg);color:var(--color-text);font-size:.95rem;outline:none;font-family:inherit;transition:border-color var(--transition-base);cursor:pointer}select:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-glow)}.radio-group{display:flex;gap:8px}.radio-btn{flex:1;padding:8px;border:1px solid var(--color-border);background:var(--color-input-bg);color:var(--color-text-secondary);border-radius:var(--radius-sm);cursor:pointer;transition:all var(--transition-base);font-size:.85rem;font-weight:500;text-align:center}.radio-btn:hover{border-color:var(--color-primary-light);background:var(--color-primary-soft)}.radio-btn.active{background:var(--gradient-primary);color:#fff;border-color:transparent;box-shadow:0 2px 8px #4f46e540}.toggle-btn{width:48px;height:26px;background:var(--color-surface-active);border-radius:var(--radius-full);border:none;cursor:pointer;position:relative;transition:background var(--transition-smooth);align-self:flex-start}.setting-item:has(.toggle-btn){flex-direction:row;justify-content:space-between;align-items:center}.toggle-btn.active{background:var(--color-primary)}.toggle-circle{width:20px;height:20px;background:#fff;border-radius:50%;position:absolute;top:3px;left:3px;transition:transform var(--transition-smooth);box-shadow:0 1px 4px #00000026}.toggle-btn.active .toggle-circle{transform:translate(22px)}.settings-footer{padding:1rem 1.5rem;border-top:1px solid var(--color-border-light);text-align:right;display:flex;justify-content:flex-end}.logout-btn{padding:8px 20px;background:var(--color-danger);color:#fff;border:none;border-radius:var(--radius-sm);cursor:pointer;font-weight:600;font-size:.85rem;transition:all var(--transition-base)}.logout-btn:hover{background:#dc2626;transform:translateY(-1px);box-shadow:0 4px 12px #ef444440}.invite-modal-content{width:420px;max-width:90vw;display:flex;flex-direction:column}.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}.modal-header h3{margin:0;color:var(--color-text);font-weight:700;border-bottom:none;padding-bottom:0}.invite-search{width:100%;padding:11px 16px;border:1px solid var(--color-border);border-radius:var(--radius-md);background:var(--color-input-bg);color:var(--color-text);margin-bottom:16px;outline:none;font-size:.92rem;font-family:inherit;transition:all var(--transition-base)}.invite-search:focus{border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-glow)}.invite-list{list-style:none;padding:0;margin:0;max-height:300px;overflow-y:auto;border-top:1px solid var(--color-border-light)}.invite-item{display:flex;align-items:center;justify-content:space-between;padding:12px 4px;border-bottom:1px solid var(--color-border-light);transition:background-color var(--transition-fast)}.invite-item:hover{background-color:var(--color-surface-hover)}.invite-item:last-child{border-bottom:none}.invite-user-info{display:flex;align-items:center;gap:12px}.invite-avatar{width:38px;height:38px;border-radius:50%;overflow:hidden;border:2px solid var(--color-border-light)}.invite-avatar img{width:100%;height:100%;object-fit:cover}.invite-username{font-weight:500;color:var(--color-text);font-size:.92rem}.btn-invite{background:var(--gradient-primary);color:#fff;padding:7px 18px;border-radius:var(--radius-full);font-size:.82rem;font-weight:600;transition:all var(--transition-base);box-shadow:0 2px 6px #4f46e533}.btn-invite:hover{transform:translateY(-1px);box-shadow:0 4px 12px #4f46e54d}.btn-invite.sent{background:var(--color-success);cursor:default;box-shadow:0 2px 6px #10b98133}.no-results{padding:24px;text-align:center;color:var(--color-text-muted);font-size:.9rem}.typing-indicator{display:flex;align-items:center;gap:8px;padding:8px 16px;color:var(--color-text-secondary);font-size:.82rem;font-weight:500;animation:fadeIn .3s ease}.typing-dots{display:flex;gap:3px;align-items:center}.typing-dots span{width:6px;height:6px;border-radius:50%;background:var(--color-primary);animation:typing-bounce 1.4s infinite ease-in-out}.typing-dots span:nth-child(1){animation-delay:0s}.typing-dots span:nth-child(2){animation-delay:.2s}.typing-dots span:nth-child(3){animation-delay:.4s}@keyframes typing-bounce{0%,80%,to{transform:translateY(0);opacity:.35}40%{transform:translateY(-8px);opacity:1}}.typing-text{color:var(--color-text-secondary)}.search-bar{padding:12px;border-bottom:1px solid var(--color-border-light);background:var(--color-surface)}.search-input-wrapper{position:relative;display:flex;align-items:center}.search-icon{position:absolute;left:14px;color:var(--color-text-muted);pointer-events:none;font-size:.9rem}.search-input{width:100%;padding:10px 40px;border:1px solid var(--color-border);border-radius:var(--radius-md);font-size:.9rem;background:var(--color-input-bg);color:var(--color-text);transition:all var(--transition-base);font-family:inherit}.search-input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 3px var(--color-primary-glow);background:var(--color-surface)}.search-clear{position:absolute;right:12px;width:22px;height:22px;border:none;background:var(--color-text-muted);color:#fff;border-radius:50%;font-size:14px;line-height:1;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast)}.search-clear:hover{background:var(--color-primary);transform:scale(1.1)}.search-results-count{margin-top:8px;font-size:.72rem;color:var(--color-text-muted);text-align:center;font-weight:500}.main-layout{display:flex;width:100vw;height:100vh;height:100dvh;background-color:var(--color-bg);overflow:hidden}.chat-container{flex:1;min-width:0;display:flex;flex-direction:column;background-color:var(--color-surface);position:relative;border-left:1px solid var(--color-border-light);overflow:hidden}.chat-header{display:flex;align-items:center;padding:14px 24px;border-bottom:1px solid var(--color-border-light);background:var(--color-surface);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);position:relative;z-index:10}.chat-header:after{content:"";position:absolute;bottom:-1px;left:0;right:0;height:1px;background:linear-gradient(90deg,var(--color-primary-glow),transparent 50%)}.chat-header-user{display:flex;align-items:center;gap:14px}.avatar-placeholder img{width:42px;height:42px;border-radius:50%;object-fit:cover;border:2px solid var(--color-border-light);transition:border-color var(--transition-base)}.avatar-placeholder img:hover{border-color:var(--color-primary-light)}.chat-header-info h3{font-size:1.05rem;margin-bottom:1px;color:var(--color-text);font-weight:600}.status-text{font-size:.78rem;color:var(--color-primary);font-weight:500}.header-actions{display:flex;gap:6px;align-items:center;margin-left:auto}.header-actions-desktop{display:flex;gap:4px}.icon-btn{width:36px;height:36px;display:flex;align-items:center;justify-content:center;border-radius:var(--radius-full);color:var(--color-text-secondary);transition:all var(--transition-base);cursor:pointer}.invite-btn{width:auto!important;padding:8px 16px;background-color:var(--color-primary-soft);color:var(--color-primary);font-weight:600;font-size:.9rem;gap:8px;border-radius:50px!important;border:none;display:flex;align-items:center;justify-content:center}.invite-btn:hover{background-color:var(--color-primary);color:#fff}.icon-btn:hover{color:var(--color-primary);background-color:var(--color-primary-soft)}.messages-area{flex:1;padding:20px 24px;overflow-y:auto;background-color:var(--color-surface);display:flex;flex-direction:column;gap:8px;scroll-behavior:auto!important}.messages-area:before{content:"";position:fixed;pointer-events:none;opacity:.02;background-image:radial-gradient(var(--color-primary) 1px,transparent 1px);background-size:20px 20px;width:100%;height:100%;top:0;left:0}.input-wrapper{padding:12px 20px 16px;background-color:var(--color-surface);border-top:1px solid var(--color-border-light);position:relative}.emoji-picker-container{position:absolute;bottom:80px;right:20px;z-index:100;box-shadow:var(--shadow-xl);border-radius:var(--radius-lg);overflow:hidden;animation:scaleIn var(--transition-base)}.chat-input-bar{display:flex;align-items:center;background-color:var(--color-input-bg);padding:6px 6px 6px 16px;border-radius:var(--radius-full);gap:8px;border:1px solid var(--color-border-light);transition:all var(--transition-base)}.chat-input-bar:focus-within{border-color:var(--color-primary-light);box-shadow:0 0 0 3px var(--color-primary-glow);background-color:var(--color-surface)}.chat-input-bar input[type=text]{flex:1;border:none;background:transparent;padding:10px 4px;font-size:.92rem;outline:none;color:var(--color-text);font-weight:400}.chat-input-bar input[type=text]::placeholder{color:var(--color-text-muted)}.attach-btn,.mic-btn,.send-btn{display:flex;align-items:center;justify-content:center;font-size:1.1rem;padding:4px;transition:all var(--transition-fast)}.attach-btn{color:var(--color-text-muted)}.attach-btn:hover{color:var(--color-primary)}.input-actions{display:flex;align-items:center;gap:4px}.mic-btn{background:var(--color-surface-hover);color:var(--color-text-secondary);width:36px;height:36px;border-radius:50%;font-size:.95rem;transition:all var(--transition-base)}.mic-btn:hover{background:var(--color-primary-soft);color:var(--color-primary)}.send-btn{background:var(--gradient-send-btn);color:#fff;width:36px;height:36px;border-radius:50%;font-size:.95rem;box-shadow:0 2px 8px #4f46e540;transition:all var(--transition-base)}.send-btn:hover{transform:scale(1.08);box-shadow:0 4px 16px #4f46e559}.send-btn:active{transform:scale(.95)}.recording-indicator{display:flex;align-items:center;gap:6px;color:var(--color-danger);font-weight:600;font-size:.85rem;padding-right:8px}.recording-dot{width:8px;height:8px;background-color:var(--color-danger);border-radius:50%;animation:pulse 1s infinite}.mic-btn.recording{background-color:#ef44441a;color:var(--color-danger);width:auto;padding:0 12px;border-radius:20px}.audio-preview-bar{display:flex;align-items:center;gap:12px;background-color:var(--color-surface);padding:8px 16px;border-radius:var(--radius-lg);border-top:1px solid var(--color-border-light);width:100%}.preview-audio{flex:1;height:40px}.icon-btn.danger{color:var(--color-danger)}.icon-btn.danger:hover{background-color:#ef44441a}.icon-btn.success{color:var(--color-success)}.icon-btn.success:hover{background-color:#22c55e1a}.image-preview-overlay{position:absolute;top:0;left:0;right:0;bottom:0;background-color:#000000d9;-webkit-backdrop-filter:blur(5px);backdrop-filter:blur(5px);z-index:1000;display:flex;align-items:flex-end;justify-content:flex-start;padding:24px;animation:fadeIn .15s ease-out}.image-preview-modal{background:#1e1e1e;width:100%;max-width:400px;border-radius:16px;overflow:hidden;box-shadow:0 20px 50px #00000080;display:flex;flex-direction:column;animation:scaleIn .2s cubic-bezier(.16,1,.3,1);border:1px solid rgba(255,255,255,.1)}.image-preview-header{padding:12px 16px;display:flex;align-items:center;gap:12px;background:#1e1e1e;border-bottom:1px solid rgba(255,255,255,.1)}.close-btn{color:#ccc;width:32px;height:32px;border-radius:50%;background:#ffffff1a}.close-btn:hover{background:#fff3;color:#fff}.preview-title{font-weight:600;font-size:.95rem;color:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.image-preview-content{background:#000;display:flex;align-items:center;justify-content:center;min-height:300px;max-height:500px}.image-preview-content img{max-width:100%;max-height:500px;object-fit:contain}.image-preview-footer{padding:12px;display:flex;align-items:center;gap:10px;background:var(--color-surface)}.caption-wrapper{flex:1;position:relative}.caption-input{width:100%;background-color:var(--color-background);border:1px solid var(--color-border-light);color:var(--color-text-primary);padding:10px 16px;border-radius:20px;font-size:.95rem;outline:none;transition:all .2s}.caption-input:focus{border-color:var(--color-primary);box-shadow:0 0 0 2px rgba(var(--color-primary-rgb),.1)}.caption-input::placeholder{color:var(--color-text-tertiary)}.send-btn-fab{width:44px;height:44px;border-radius:50%;background:var(--color-primary);color:#fff;display:flex;align-items:center;justify-content:center;border:none;cursor:pointer;transition:all .2s;box-shadow:0 4px 12px rgba(var(--color-primary-rgb),.3);flex-shrink:0}.send-btn-fab:hover{transform:scale(1.05);background:var(--color-primary-dark)}.send-icon{margin-left:2px}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}@keyframes scaleIn{0%{transform:scale(.95);opacity:0}to{transform:scale(1);opacity:1}}.mobile-back-btn{display:none;background:none;border:none;font-size:1.3rem;color:var(--color-text);margin-right:12px;cursor:pointer;transition:color var(--transition-fast)}.mobile-back-btn:hover{color:var(--color-primary)}.mobile-menu-container{position:relative;display:block}.mobile-menu-dropdown{position:absolute;top:calc(100% + 4px);right:0;background-color:var(--color-surface);min-width:56px;box-shadow:var(--shadow-lg);border-radius:var(--radius-md);padding:6px 0;z-index:100;overflow:hidden;border:1px solid var(--color-border);display:flex;flex-direction:column;align-items:center;animation:scaleIn var(--transition-fast)}.mobile-menu-dropdown button{display:flex;align-items:center;justify-content:center;width:100%;text-align:center;padding:12px 0;background:none;border:none;font-size:1.1rem;color:var(--color-text);cursor:pointer;transition:all var(--transition-fast)}.mobile-menu-dropdown button:hover{background-color:var(--color-primary-soft);color:var(--color-primary)}.mobile-menu-overlay{position:fixed;top:0;left:0;width:100vw;height:100vh;z-index:99;background:transparent}@media(max-width:768px){.main-layout{padding-bottom:64px;height:100dvh;overflow:hidden}.mobile-back-btn{display:block}.chat-header{padding:10px 14px}.chat-header-user{gap:10px}.avatar-placeholder img{width:36px;height:36px}.chat-header-info h3{font-size:.95rem}.icon-btn{width:32px;height:32px;font-size:1rem}.chat-container{display:none}.middle-panel{display:flex;width:100%;flex:1}.main-layout.mobile-chat-active{padding-bottom:0}.main-layout.mobile-chat-active .chat-container{display:flex;width:100%;height:100%;border-left:none!important}.main-layout.mobile-chat-active .middle-panel,.main-layout.mobile-chat-active .main-sidebar{display:none}.input-wrapper{padding:6px 10px 10px}.chat-input-bar{padding:4px 4px 4px 12px;gap:4px;width:100%;flex-wrap:nowrap}.chat-input-bar input[type=text]{min-width:0;padding:8px 4px;font-size:.88rem}.input-actions{gap:2px}.input-actions .icon-btn:nth-child(1),.input-actions .icon-btn:nth-child(2){display:none!important}.invite-btn{display:inline-block!important;color:var(--color-primary)}.attach-btn{padding:2px;font-size:1rem}.mic-btn,.send-btn{width:32px;height:32px;font-size:.88rem}.header-actions-desktop{display:none}}@media(min-width:769px){.mobile-menu-container{display:none}}.username-prompt-overlay{position:fixed;top:0;left:0;width:100%;height:100vh;background:var(--gradient-login);display:flex;align-items:center;justify-content:center;z-index:1000;overflow:hidden}.username-prompt-overlay:before,.username-prompt-overlay:after{content:"";position:absolute;border-radius:50%;filter:blur(80px);opacity:.4;animation:float 8s ease-in-out infinite}.username-prompt-overlay:before{width:400px;height:400px;background:#8b5cf680;top:-100px;right:-100px}.username-prompt-overlay:after{width:350px;height:350px;background:#6366f166;bottom:-80px;left:-80px;animation-delay:-4s}@keyframes float{0%,to{transform:translate(0) scale(1)}25%{transform:translate(30px,-30px) scale(1.05)}50%{transform:translate(-20px,20px) scale(.95)}75%{transform:translate(10px,40px) scale(1.02)}}.username-prompt-box{background:var(--login-card-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);padding:3rem 2.5rem;border-radius:var(--radius-xl);box-shadow:var(--shadow-xl),0 0 60px #4f46e51a;width:90%;max-width:420px;text-align:center;border:var(--login-border);animation:loginCardIn .6s cubic-bezier(.34,1.56,.64,1);position:relative;z-index:1}@keyframes loginCardIn{0%{opacity:0;transform:translateY(30px) scale(.96)}to{opacity:1;transform:translateY(0) scale(1)}}.username-prompt-box h2{margin-bottom:.5rem;color:var(--login-text);font-size:2rem;font-weight:700;letter-spacing:-.02em}.username-prompt-box h2+p,.username-prompt-box h2~.tagline{color:var(--color-text-secondary);font-size:.95rem;margin-bottom:2rem;font-weight:400;line-height:1.5}.username-prompt-box form{display:flex;flex-direction:column;gap:1.2rem}.username-prompt-box input{padding:1rem 1.2rem;border-radius:var(--radius-md);border:2px solid var(--color-border);background:var(--login-input-bg);color:var(--login-input-text);font-size:1rem;font-weight:500;transition:all var(--transition-base)}.username-prompt-box input::placeholder{color:var(--color-text-muted);font-weight:400}.username-prompt-box input:focus{outline:none;border-color:var(--color-primary);box-shadow:0 0 0 4px var(--color-primary-glow)}.username-prompt-box button{padding:1rem;border-radius:var(--radius-md);border:none;background:var(--gradient-primary);color:#fff;font-weight:600;cursor:pointer;transition:all var(--transition-base);font-size:1rem;letter-spacing:.5px;text-transform:uppercase;position:relative;overflow:hidden}.username-prompt-box button:after{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(135deg,rgba(255,255,255,.15),transparent);opacity:0;transition:opacity var(--transition-base)}.username-prompt-box button:hover{transform:translateY(-2px);box-shadow:0 8px 25px #4f46e559}.username-prompt-box button:hover:after{opacity:1}.username-prompt-box button:active{transform:translateY(0);box-shadow:0 4px 12px #4f46e533}.error-message{color:var(--color-danger);background-color:#ef444414;padding:10px 14px;border-radius:var(--radius-sm);font-size:.9rem;font-weight:500;border:1px solid rgba(239,68,68,.15);animation:shake .4s ease-in-out}@keyframes shake{0%,to{transform:translate(0)}25%{transform:translate(-5px)}75%{transform:translate(5px)}}@media(max-width:480px){.username-prompt-box{padding:2rem 1.5rem;margin:0 16px}.username-prompt-box h2{font-size:1.6rem}}