@import "https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap";:root{--bg-dark:#020617;--bg-darker:#0f172a;--bg-panel:#0f172a99;--text-primary:#f8fafc;--text-secondary:#94a3b8;--border-color:#06b6d433;--accent:#06b6d4;--accent-hover:#0891b2;--accent-glow:#06b6d466;--bot-msg-bg:#1e293bb3;--user-msg-bg:#06b6d426;--bg-gradient-1:#020617;--bg-gradient-2:#1e1b4b;--bg-gradient-3:#083344}[data-theme=light]{--bg-dark:#f8fafc;--bg-darker:#e2e8f0;--bg-panel:#fffc;--text-primary:#0f172a;--text-secondary:#475569;--border-color:#3b82f633;--accent:#3b82f6;--accent-hover:#2563eb;--accent-glow:#3b82f64d;--bot-msg-bg:#ffffffe6;--user-msg-bg:#3b82f61a;--bg-gradient-1:#f8fafc;--bg-gradient-2:#e0e7ff;--bg-gradient-3:#dbeafe}[data-theme=dark][data-mode=english]{--accent:#10b981;--accent-hover:#059669;--accent-glow:#10b98166;--user-msg-bg:#10b98126}[data-theme=dark][data-mode=bangla]{--accent:#f97316;--accent-hover:#ea580c;--accent-glow:#f9731666;--user-msg-bg:#f9731626}[data-theme=dark][data-mode=math]{--accent:#8b5cf6;--accent-hover:#7c3aed;--accent-glow:#8b5cf666;--user-msg-bg:#8b5cf626}[data-theme=dark][data-mode=physics]{--accent:#eab308;--accent-hover:#ca8a04;--accent-glow:#eab30866;--user-msg-bg:#eab30826}[data-theme=light][data-mode=english]{--accent:#059669;--accent-hover:#047857;--accent-glow:#0596694d;--user-msg-bg:#0596691a}[data-theme=light][data-mode=bangla]{--accent:#ea580c;--accent-hover:#c2410c;--accent-glow:#ea580c4d;--user-msg-bg:#ea580c1a}[data-theme=light][data-mode=math]{--accent:#7c3aed;--accent-hover:#6d28d9;--accent-glow:#7c3aed4d;--user-msg-bg:#7c3aed1a}[data-theme=light][data-mode=physics]{--accent:#ca8a04;--accent-hover:#a16207;--accent-glow:#ca8a044d;--user-msg-bg:#ca8a041a}*{box-sizing:border-box;margin:0;padding:0}body{background-color:var(--bg-darker);color:var(--text-primary);width:100vw;height:100dvh;font-family:Inter,sans-serif;display:flex;overflow:hidden}#root{background:linear-gradient(135deg, var(--bg-gradient-1), var(--bg-gradient-2), var(--bg-gradient-3));background-size:400% 400%;width:100%;height:100%;animation:15s infinite gradientBG;display:flex;position:relative;overflow:hidden}@keyframes gradientBG{0%{background-position:0%}50%{background-position:100%}to{background-position:0%}}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--accent-glow);border-radius:4px}::-webkit-scrollbar-thumb:hover{background:var(--accent)}.app-container{z-index:1;width:100%;height:100%;display:flex}.main-content{flex-direction:column;flex:1;height:100%;display:flex;position:relative;overflow:hidden}.glass{background:var(--bg-panel);-webkit-backdrop-filter:blur(16px);border:1px solid var(--border-color);box-shadow:0 4px 30px #0000001a}.sidebar{border-right:1px solid var(--border-color);background:var(--bg-panel);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);z-index:10;flex-direction:column;width:280px;height:100%;transition:all .3s cubic-bezier(.4,0,.2,1);display:flex}.sidebar-closed .sidebar{opacity:0;border-right:none;width:0;padding:0;overflow:hidden}.sidebar-header{border-bottom:1px solid var(--border-color);flex-direction:column;gap:12px;padding:16px;display:flex}.sidebar-brand{align-items:center;gap:10px;padding:4px 4px 8px;display:flex}.sidebar-logo{object-fit:cover;border:1.5px solid var(--accent);width:32px;height:32px;box-shadow:0 0 10px var(--accent-glow);background:var(--bg-dark);border-radius:50%;flex-shrink:0}.sidebar-brand-name{color:var(--text-primary);letter-spacing:.3px;font-size:16px;font-weight:700}.new-chat-btn{width:100%;color:var(--text-primary);border:1px solid var(--accent-glow);cursor:pointer;box-shadow:inset 0 0 0 0 var(--accent);background:0 0;border-radius:8px;justify-content:center;align-items:center;gap:8px;padding:12px;font-family:inherit;font-size:14px;font-weight:500;transition:all .3s;display:flex}.new-chat-btn:hover{border-color:var(--accent);box-shadow:inset 0 0 20px 0 var(--accent-glow)}.history-list{flex-direction:column;flex:1;gap:8px;padding:12px;display:flex;overflow-y:auto}.history-item{cursor:pointer;color:var(--text-secondary);border:1px solid #0000;border-radius:8px;justify-content:space-between;align-items:center;gap:12px;padding:12px;font-size:14px;transition:all .2s;display:flex}.history-item-content{flex:1;align-items:center;gap:12px;display:flex;overflow:hidden}.history-item:hover,.history-item.active{color:var(--text-primary);border-color:var(--border-color);background:#8080801a}.delete-chat-btn{color:var(--text-secondary);cursor:pointer;opacity:0;background:0 0;border:none;border-radius:6px;justify-content:center;align-items:center;padding:6px;transition:all .2s;display:flex}.history-item:hover .delete-chat-btn{opacity:1}.delete-chat-btn:hover{color:#ef4444;background:#ef44441a}.empty-history{text-align:center;color:var(--text-secondary);padding:20px;font-size:13px}.modal-overlay{-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);z-index:100;background:#00000080;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.modal-content{background:var(--bg-panel);border:1px solid var(--border-color);border-radius:16px;flex-direction:column;gap:16px;width:90%;max-width:400px;padding:24px;display:flex;box-shadow:0 10px 40px #0000004d}.modal-header{align-items:center;gap:12px;display:flex}.modal-header h3{color:var(--text-primary);margin:0}.modal-content p{color:var(--text-secondary);font-size:14px}.modal-actions{justify-content:flex-end;gap:12px;margin-top:8px;display:flex}.modal-btn{cursor:pointer;border:none;border-radius:8px;padding:8px 16px;font-size:14px;font-weight:600;transition:all .2s}.modal-btn.cancel{color:var(--text-secondary);background:#8080801a}.modal-btn.cancel:hover{color:var(--text-primary);background:#80808033}.modal-btn.delete{color:#fff;background:#ef4444}.modal-btn.delete:hover{background:#dc2626;box-shadow:0 4px 12px #ef444466}.auth-modal-content{background:var(--bg-panel);border:1px solid var(--border-color);width:90%;max-width:420px;box-shadow:0 20px 60px #00000080, 0 0 30px var(--accent-glow);border-radius:20px;flex-direction:column;padding:32px 28px 24px;animation:.3s cubic-bezier(.16,1,.3,1) slideInRight;display:flex;position:relative}.modal-close-btn{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:50%;justify-content:center;align-items:center;padding:6px;transition:all .2s;display:flex;position:absolute;top:16px;right:16px}.modal-close-btn:hover{color:var(--text-primary);background:#ffffff1a}.auth-modal-header{text-align:center;flex-direction:column;align-items:center;gap:8px;margin-bottom:20px;display:flex}.auth-logo-frame{border:2px solid var(--accent);width:58px;height:58px;box-shadow:0 0 20px var(--accent-glow);background:var(--bg-dark);border-radius:50%;justify-content:center;align-items:center;margin-bottom:4px;padding:3px;display:flex}.auth-logo{object-fit:cover;border-radius:50%;width:100%;height:100%;display:block}.auth-modal-header h2{color:var(--text-primary);letter-spacing:-.3px;font-size:20px;font-weight:700}.auth-subtitle{color:var(--text-secondary);max-width:320px;font-size:13px;line-height:1.5}.auth-tabs{border:1px solid var(--border-color);background:#0f172a66;border-radius:10px;margin-bottom:18px;padding:4px;display:flex}.auth-tab{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:8px;flex:1;padding:8px;font-size:13px;font-weight:600;transition:all .2s}.auth-tab.active{background:var(--accent);color:#fff;box-shadow:0 0 12px var(--accent-glow)}.auth-error-badge{color:#f87171;text-align:center;background:#ef444426;border:1px solid #ef444466;border-radius:8px;margin-bottom:14px;padding:8px 12px;font-size:13px}.auth-form{flex-direction:column;gap:14px;display:flex}.auth-input-group label{color:var(--text-secondary);margin-bottom:6px;font-size:12px;font-weight:500;display:block}.auth-input-wrapper{border:1px solid var(--border-color);background:#0f172a66;border-radius:10px;align-items:center;gap:10px;padding:0 12px;transition:border-color .2s,box-shadow .2s;display:flex}.auth-input-wrapper:focus-within{border-color:var(--accent);box-shadow:0 0 10px var(--accent-glow)}.auth-input-icon{color:var(--text-secondary);flex-shrink:0}.auth-input-wrapper input{color:var(--text-primary);background:0 0;border:none;outline:none;flex:1;padding:10px 0;font-family:inherit;font-size:14px}.auth-password-toggle{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;padding:4px;display:flex}.auth-password-toggle:hover{color:var(--text-primary)}.auth-submit-btn{background:var(--accent);color:#fff;cursor:pointer;width:100%;box-shadow:0 0 15px var(--accent-glow);border:none;border-radius:10px;justify-content:center;align-items:center;gap:8px;margin-top:6px;padding:12px;font-size:14px;font-weight:600;transition:all .2s;display:flex}.auth-submit-btn:hover:not(:disabled){background:var(--accent-hover);transform:translateY(-1px)}.auth-submit-btn:disabled{opacity:.6;cursor:not-allowed}.auth-modal-footer{text-align:center;margin-top:14px}.auth-guest-btn{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;padding:6px;font-size:13px;text-decoration:underline;transition:color .2s}.auth-guest-btn:hover{color:var(--text-primary)}.sidebar-footer{border-top:1px solid var(--border-color);background:#00000026;padding:14px 16px}.sidebar-auth-btn{border:1px solid var(--accent);width:100%;color:var(--accent);cursor:pointer;background:#06b6d41a;border-radius:8px;justify-content:center;align-items:center;gap:8px;padding:10px;font-size:13px;font-weight:600;transition:all .2s;display:flex}.sidebar-auth-btn:hover{background:var(--accent);color:#fff;box-shadow:0 0 15px var(--accent-glow)}.user-profile-bar{align-items:center;gap:10px;display:flex}.user-avatar-badge{background:var(--accent);color:#fff;width:32px;height:32px;box-shadow:0 0 8px var(--accent-glow);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;font-size:13px;font-weight:700;display:flex}.user-info{flex-direction:column;flex:1;min-width:0;display:flex}.user-name{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;font-size:13px;font-weight:600;overflow:hidden}.user-email{color:var(--text-secondary);white-space:nowrap;text-overflow:ellipsis;font-size:11px;overflow:hidden}.logout-btn{border:1px solid var(--border-color);color:var(--text-secondary);cursor:pointer;background:0 0;border-radius:6px;justify-content:center;align-items:center;padding:6px;transition:all .2s;display:flex}.logout-btn:hover{color:#ef4444;background:#ef444426;border-color:#ef4444}.top-bar-signin-btn{border:1px solid var(--accent);color:var(--accent);cursor:pointer;background:#06b6d426;border-radius:20px;align-items:center;gap:6px;margin-right:8px;padding:6px 14px;font-size:13px;font-weight:600;transition:all .2s;display:flex}.top-bar-signin-btn:hover{background:var(--accent);color:#fff;box-shadow:0 0 12px var(--accent-glow)}.top-bar-user-badge{background:var(--bg-panel);border:1px solid var(--border-color);cursor:pointer;border-radius:20px;align-items:center;gap:8px;margin-right:8px;padding:4px 12px 4px 6px;transition:all .2s;display:flex}.top-bar-user-badge:hover{border-color:var(--accent);box-shadow:0 0 10px var(--accent-glow)}.top-user-avatar{background:var(--accent);color:#fff;border-radius:50%;justify-content:center;align-items:center;width:24px;height:24px;font-size:11px;font-weight:700;display:flex}.top-user-name{color:var(--text-primary);white-space:nowrap;text-overflow:ellipsis;max-width:100px;font-size:13px;font-weight:500;overflow:hidden}.chat-area{flex-direction:column;flex:1;gap:32px;padding:24px;display:flex;overflow-y:auto}.message-wrapper{gap:16px;width:100%;max-width:850px;margin:0 auto;display:flex}.message-wrapper.bot{animation:.6s cubic-bezier(.175,.885,.32,1.275) forwards slideInLeft}.message-wrapper.user{flex-direction:row-reverse;animation:.6s cubic-bezier(.175,.885,.32,1.275) forwards slideInRight}@keyframes slideInLeft{0%{opacity:0;transform:translate(-150px)scale(.9)}to{opacity:1;transform:translate(0)scale(1)}}@keyframes slideInRight{0%{opacity:0;transform:translate(150px)scale(.9)}to{opacity:1;transform:translate(0)scale(1)}}.avatar{width:42px;height:42px;color:var(--text-primary);border:1.5px solid var(--border-color);background:var(--bg-dark);border-radius:50%;flex-shrink:0;justify-content:center;align-items:center;display:flex;overflow:hidden}.avatar-bot{background:var(--bg-dark);color:var(--accent);border-color:var(--accent);animation:3s infinite alternate pulseGlow}.avatar-user{background:var(--accent);color:#fff;animation:4s ease-in-out infinite floatAvatar}.avatar-logo{display:block;aspect-ratio:1!important;object-fit:cover!important;clip-path:circle(50%)!important;border-radius:50%!important;width:100%!important;height:100%!important}.round-logo{aspect-ratio:1!important;object-fit:cover!important;clip-path:circle(50%)!important;border-radius:50%!important}@keyframes pulseGlow{0%{box-shadow:0 0 5px var(--accent-glow)}to{box-shadow:0 0 20px var(--accent-glow), 0 0 10px var(--accent)}}@keyframes floatAvatar{0%{transform:translateY(0)}50%{transform:translateY(-4px)}to{transform:translateY(0)}}.message-content-wrapper{flex-direction:column;gap:6px;max-width:85%;display:flex}.bot .message-content-wrapper{align-items:flex-start}.user .message-content-wrapper{align-items:flex-end}.message-content{color:var(--text-primary);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-radius:16px;width:fit-content;padding:18px 24px;font-size:15px;line-height:1.6;position:relative}.hover-edit-btn{background:var(--bg-dark);border:1px solid var(--border-color);color:var(--text-secondary);cursor:pointer;opacity:0;border-radius:50%;justify-content:center;align-items:center;width:28px;height:28px;transition:all .2s;display:flex;position:absolute;top:-10px;right:-10px;transform:scale(.8);box-shadow:0 4px 10px #0003}.message-content:hover .hover-edit-btn{opacity:1;transform:scale(1)}.hover-edit-btn:hover{background:var(--accent);color:#fff;border-color:var(--accent)}.user .hover-edit-btn{left:-10px;right:auto}.edit-mode{flex-direction:column;gap:12px;width:100%;min-width:300px;display:flex}.edit-textarea{border:1px solid var(--border-color);width:100%;color:var(--text-primary);resize:vertical;background:#0003;border-radius:8px;padding:12px;font-family:inherit;font-size:14px}.edit-actions{justify-content:flex-end;gap:8px;display:flex}.edit-btn{cursor:pointer;border:none;border-radius:6px;align-items:center;gap:6px;padding:6px 12px;font-size:12px;font-weight:600;transition:all .2s;display:flex}.edit-btn.save{background:var(--accent);color:#fff}.edit-btn.save:hover{background:var(--accent-hover)}.edit-btn.cancel{color:var(--text-secondary);background:#ffffff1a}.edit-btn.cancel:hover{color:var(--text-primary);background:#fff3}.branch-nav{color:var(--text-secondary);align-items:center;gap:8px;font-size:12px;font-weight:600;display:flex}.branch-nav button{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;justify-content:center;align-items:center;transition:color .2s;display:flex}.branch-nav button:hover:not(:disabled){color:var(--accent)}.branch-nav button:disabled{opacity:.3;cursor:not-allowed}.nav-right{justify-content:flex-end}.nav-left{justify-content:flex-start}.bot .message-content{background:var(--bot-msg-bg);border:1px solid var(--border-color);border-top-left-radius:4px;box-shadow:0 4px 20px #0000000d}.user .message-content{background:var(--user-msg-bg);border:1px solid var(--accent-glow);border-top-right-radius:4px}.input-container-wrapper{width:100%;max-width:900px;margin:0 auto;padding:0 24px 24px}.input-glass{background:var(--bg-panel);-webkit-backdrop-filter:blur(24px);border:1px solid var(--border-color);border-radius:20px;flex-direction:column;gap:12px;padding:12px 20px;transition:all .3s;display:flex;box-shadow:0 8px 32px #00000026}.input-glass:focus-within{border-color:var(--accent);box-shadow:0 8px 32px #0003, 0 0 0 1px var(--accent-glow)}.input-row{align-items:flex-end;gap:12px;display:flex}textarea{color:var(--text-primary);resize:none;background:0 0;border:none;outline:none;flex:1;min-height:44px;max-height:200px;padding:10px 0;font-family:inherit;font-size:15px}textarea::placeholder{color:var(--text-secondary)}.action-btn,.icon-btn{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:10px;justify-content:center;align-items:center;padding:10px;transition:all .2s;display:flex}.icon-btn:hover,.action-btn:hover{background:var(--accent-glow);color:var(--accent)}.send-btn{background:var(--accent);color:#fff}.send-btn:hover{background:var(--accent-hover);color:#fff;box-shadow:0 4px 12px var(--accent-glow);transform:translateY(-2px)}.send-btn:active{transform:translateY(1px)}.send-btn:disabled{color:var(--text-secondary);cursor:not-allowed;box-shadow:none;background:#80808033;transform:none}.tools-row{border-bottom:1px solid var(--border-color);justify-content:space-between;align-items:center;padding-bottom:12px;display:flex}.mode-selector{border:1px solid var(--border-color);background:#8080801a;border-radius:10px;gap:6px;padding:4px;display:flex}.mode-btn{color:var(--text-secondary);cursor:pointer;background:0 0;border:none;border-radius:8px;padding:6px 14px;font-size:13px;font-weight:600;transition:all .3s}.mode-btn.active{background:var(--accent);color:#fff;box-shadow:0 2px 12px var(--accent-glow)}.mode-btn:hover:not(.active){color:var(--text-primary)}.attachment-preview{background:var(--bg-dark);border:1px solid var(--border-color);color:var(--text-primary);border-radius:12px;align-items:center;gap:8px;padding:6px 14px;font-size:13px;display:flex}.remove-attachment{cursor:pointer;color:#ef4444;transition:color .2s}.remove-attachment:hover{color:#f87171}input[type=file]{display:none}.top-bar{z-index:5;align-items:center;padding:16px 24px 0;display:flex}.top-bar-brand{align-items:center;gap:10px;margin-left:14px;display:flex}.topbar-logo{object-fit:cover;border:1.5px solid var(--accent);width:30px;height:30px;box-shadow:0 0 10px var(--accent-glow);background:var(--bg-dark);border-radius:50%;flex-shrink:0}.topbar-title{color:var(--text-primary);letter-spacing:.3px;font-size:15px;font-weight:600}.typing-indicator{background:var(--bot-msg-bg);border:1px solid var(--border-color);border-radius:4px 16px 16px;gap:6px;width:fit-content;padding:16px 20px;display:flex}.dot{background:var(--accent);border-radius:50%;width:8px;height:8px;animation:1.4s ease-in-out infinite both bounce}.dot:first-child{animation-delay:-.32s}.dot:nth-child(2){animation-delay:-.16s}@keyframes bounce{0%,80%,to{opacity:.3;transform:scale(0)}40%{opacity:1;box-shadow:0 0 8px var(--accent);transform:scale(1)}}.empty-state{text-align:center;height:100%;color:var(--text-secondary);flex-direction:column;justify-content:center;align-items:center;padding:20px;display:flex}.hero-title-container{flex-wrap:wrap;justify-content:center;align-items:center;gap:20px;margin-bottom:18px;display:flex}.hero-round-logo-wrapper{background:var(--bg-dark);border:2.5px solid var(--accent);width:76px;min-width:76px;max-width:76px;height:76px;min-height:76px;max-height:76px;box-shadow:0 0 25px var(--accent-glow), 0 0 10px var(--accent);clip-path:circle(50%);flex-shrink:0;justify-content:center;align-items:center;padding:3px;animation:4s ease-in-out infinite floatAvatar,3s infinite alternate pulseGlow;display:flex;aspect-ratio:1!important;border-radius:50%!important;overflow:hidden!important}.hero-round-logo{display:block;aspect-ratio:1!important;object-fit:cover!important;border-radius:50%!important;width:100%!important;height:100%!important}.empty-state h1{background:linear-gradient(135deg, var(--text-primary), var(--accent));-webkit-text-fill-color:transparent;-webkit-background-clip:text;background-clip:text;margin-bottom:0;font-size:56px;font-weight:700;line-height:1.15}.empty-state p{max-width:520px;margin-top:6px;font-size:18px;line-height:1.6}.markdown-body{word-wrap:break-word;font-size:15px;line-height:1.7}.markdown-body p{margin-bottom:16px}.markdown-body p:last-child{margin-bottom:0}.markdown-body code{color:var(--accent);background:#80808033;border-radius:6px;padding:3px 6px;font-family:monospace;font-size:14px}.markdown-body pre{background:var(--bg-dark);border:1px solid var(--border-color);border-radius:12px;margin:16px 0;padding:16px;overflow-x:auto}.markdown-body pre code{color:var(--text-primary);background:0 0;padding:0;font-size:14px}.markdown-body ul,.markdown-body ol{margin-bottom:16px;padding-left:24px}.markdown-body li{margin-bottom:8px}.markdown-body a{color:var(--accent);border-bottom:1px dashed var(--accent);text-decoration:none}.markdown-body a:hover{border-bottom:1px solid var(--accent);text-decoration:none}.markdown-body h1,.markdown-body h2,.markdown-body h3,.markdown-body h4,.markdown-body h5,.markdown-body h6{color:var(--text-primary);margin-top:28px;margin-bottom:14px;font-weight:600;line-height:1.3}.markdown-body table{border-collapse:collapse;border-radius:10px;width:100%;margin:20px 0;overflow:hidden;box-shadow:0 4px 15px #0000001a}.markdown-body th,.markdown-body td{border:1px solid var(--border-color);text-align:left;padding:12px 16px}.markdown-body th{background:#8080801a;font-weight:600}.markdown-body blockquote{border-left:4px solid var(--accent);color:var(--text-secondary);background:linear-gradient(90deg,#8080801a 0%,#0000 100%);border-radius:0 8px 8px 0;margin:20px 0;padding:16px;font-style:italic}.sidebar-overlay{display:none}@media (width<=768px){.app-container{position:relative}.sidebar{z-index:50;height:100%;position:absolute;top:0;left:0;transform:translate(0);box-shadow:4px 0 24px #0003}.sidebar-closed .sidebar{opacity:1;width:280px;transform:translate(-100%)}.sidebar-overlay{z-index:40;-webkit-backdrop-filter:blur(2px);backdrop-filter:blur(2px);background:#00000080;display:block;position:absolute;inset:0}.sidebar-closed .sidebar-overlay{display:none}.message-wrapper{max-width:100%}.message-content{padding:14px 18px;font-size:14px}.avatar{width:32px;height:32px}.input-container-wrapper{padding:0 12px 12px}.input-glass{padding:10px 12px}.input-row{gap:8px}textarea{padding:8px 0;font-size:16px}.action-btn{padding:8px}.tools-row{flex-wrap:wrap;gap:10px}.mode-selector{scrollbar-width:none;justify-content:flex-start;width:100%;overflow-x:auto}.mode-selector::-webkit-scrollbar{display:none}.mode-btn{text-align:center;flex:none;padding:6px 12px}.hero-title-container{gap:12px;margin-bottom:12px}.hero-round-logo-wrapper{width:54px;min-width:54px;height:54px;min-height:54px}.empty-state h1{font-size:32px}.empty-state p{padding:0 20px;font-size:15px}.chat-area{gap:20px;padding:16px}}@media (width<=1024px){.message-wrapper{max-width:90%}}