:root{--color-primary: #6366f1;--color-primary-light: #818cf8;--color-primary-dark: #4f46e5;--color-primary-subtle: #eef2ff;--color-accent: #f97316;--color-accent-light: #fdba74;--color-bg-primary: #fafaf9;--color-bg-secondary: #ffffff;--color-bg-tertiary: #f5f5f4;--color-bg-chat: #fefefe;--color-text-primary: #1c1917;--color-text-secondary: #57534e;--color-text-muted: #a8a29e;--color-text-inverse: #ffffff;--color-border: #e7e5e4;--color-border-light: #f5f5f4;--shadow-sm: 0 1px 2px rgba(28, 25, 23, .05);--shadow-md: 0 4px 6px -1px rgba(28, 25, 23, .1), 0 2px 4px -2px rgba(28, 25, 23, .1);--shadow-lg: 0 10px 15px -3px rgba(28, 25, 23, .1), 0 4px 6px -4px rgba(28, 25, 23, .1);--shadow-glow: 0 0 20px rgba(99, 102, 241, .15);--font-family: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono: "JetBrains Mono", "Fira Code", "Consolas", monospace;--font-size-base: 17px;--font-size-lg: 19px;--font-size-xl: 22px;--font-size-2xl: 28px;--font-size-sm: 15px;--font-size-xs: 13px;--line-height: 1.6;--space-xs: 4px;--space-sm: 8px;--space-md: 16px;--space-lg: 24px;--space-xl: 32px;--space-2xl: 48px;--radius-sm: 8px;--radius-md: 12px;--radius-lg: 16px;--radius-xl: 24px;--radius-full: 9999px;--transition-fast: .15s ease;--transition-normal: .25s ease;--transition-slow: .4s ease;--chat-width: 420px;--header-height: 64px;--structured-thought-bg: #fffbeb;--structured-thought-border: #fcd34d;--structured-thought-text: #78350f;--structured-thought-title: #b45309;--structured-plan-bg: #eef2ff;--structured-plan-border: #c7d2fe;--structured-plan-text: #1e1b4b;--structured-plan-title: #4338ca;--structured-done-bg: #f0fdf4;--structured-done-border: #bbf7d0;--structured-done-text: #064e3b;--structured-done-title: #15803d;--structured-files-bg: #f5f5f4;--structured-files-border: #e7e5e4;--structured-files-text: #57534e}[data-theme=dark] .chat-header,[data-theme=dark] .workspace-header{background:#141414!important}[data-theme=dark] .preview-container,[data-theme=dark] .preview-iframe-wrapper,[data-theme=dark] #previewFrame{background:#000!important}[data-theme=dark] .message-content .suggestions li{background:#1f1f1f;border-color:#27272a;color:#a1a1aa}[data-theme=dark]{--color-bg-primary: #0a0a0a;--color-bg-secondary: #141414;--color-bg-tertiary: #1f1f1f;--color-bg-chat: #0a0a0a;--color-text-primary: #ffffff;--color-text-secondary: #a1a1aa;--color-text-muted: #71717a;--color-text-inverse: #ffffff;--color-border: #27272a;--color-border-light: #18181b;--shadow-sm: 0 1px 2px rgba(0, 0, 0, .8);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .9);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 1);--shadow-glow: 0 0 20px rgba(99, 102, 241, .2);--structured-thought-bg: #111111;--structured-thought-border: #27272a;--structured-thought-text: #a1a1aa;--structured-thought-title: #71717a;--structured-plan-bg: #111111;--structured-plan-border: #312e81;--structured-plan-text: #e0e7ff;--structured-plan-title: #818cf8;--structured-done-bg: #111111;--structured-done-border: #064e3b;--structured-done-text: #dcfce7;--structured-done-title: #4ade80;--structured-files-bg: #111111;--structured-files-border: #27272a;--structured-files-text: #a1a1aa}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:var(--font-size-base);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body{font-family:var(--font-family);font-size:var(--font-size-base);line-height:var(--line-height);color:var(--color-text-primary);background:var(--color-bg-primary);min-height:100vh;overflow:hidden}.app-container{display:flex;height:100vh;width:100vw}.sidebar{width:300px;background:var(--color-bg-secondary);border-right:1px solid var(--color-border);display:flex;flex-direction:column;box-shadow:4px 0 20px #00000005}.sidebar-content{flex:1;padding:20px 12px;overflow-y:auto}.sidebar-section{display:flex;flex-direction:column;gap:20px}.sidebar-header h2{font-size:20px;font-weight:700;color:var(--color-text-primary);letter-spacing:-.5px}.sidebar-header p{font-size:13px;color:var(--color-text-muted);margin-top:4px}.btn-back{background:var(--color-bg-tertiary);border:1px solid var(--color-border);color:var(--color-text-secondary);font-weight:600;font-size:13px;cursor:pointer;padding:8px 12px;border-radius:10px;display:inline-flex;align-items:center;gap:6px;align-self:flex-start;transition:all .2s;margin-bottom:4px}.btn-back:hover{background:var(--color-bg-secondary);color:var(--color-primary);border-color:var(--color-primary-light)}.btn-create-large{display:flex;align-items:center;justify-content:center;gap:10px;padding:14px;background:var(--color-primary-subtle);color:var(--color-primary-dark);border:2px dashed var(--color-primary-light);border-radius:14px;font-size:15px;font-weight:600;cursor:pointer;transition:all .2s}.btn-create-large:hover{background:var(--color-primary);color:#fff;border-style:solid;transform:translateY(-1px)}.btn-magic{width:100%;display:flex;align-items:center;justify-content:center;gap:10px;padding:12px;background:linear-gradient(135deg,#8b5cf6,#6366f1);color:#fff;border:none;border-radius:12px;font-size:14px;font-weight:600;cursor:pointer;box-shadow:0 4px 12px #8b5cf633;transition:all .2s}.btn-magic:hover{transform:translateY(-1px);box-shadow:0 6px 15px #8b5cf64d}.sidebar-list{display:flex;flex-direction:column;gap:6px}.site-row,.page-row{display:flex;align-items:center;background:var(--color-bg-tertiary);border:1px solid transparent;border-radius:12px;transition:all .2s;position:relative;overflow:hidden}.site-row:hover,.page-row:hover{background:var(--color-bg-secondary);border-color:var(--color-border);box-shadow:0 4px 12px #00000008}.page-row.active{background:#fff;border-color:var(--color-primary);box-shadow:0 4px 15px #6366f11a}[data-theme=dark] 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var(--transition-fast)}.code-tab:hover,.code-tab.active{background:#313244;color:#cdd6f4}.tab-icon{width:20px;height:20px;display:flex;align-items:center;justify-content:center;border-radius:var(--space-xs);font-size:11px;font-weight:700}.tab-icon.html{background:#e34c26;color:#fff}.tab-icon.css{background:#264de4;color:#fff}.tab-icon.js{background:#f7df1e;color:#1e1e2e}.code-content{flex:1;position:relative;overflow:hidden}.code-editor{position:absolute;inset:0;width:100%;height:100%;padding:var(--space-md);font-family:var(--font-mono);font-size:14px;line-height:1.6;color:#cdd6f4;background:#1e1e2e;border:none;resize:none;display:none}.code-editor.active{display:block}.code-editor:focus{outline:none}.code-editor::placeholder{color:#45475a}@media(max-width:1024px){:root{--chat-width: 360px;--font-size-base: 16px}}@media(max-width:768px){.app-container{flex-direction:column}.chat-panel{width:100%;min-width:100%;height:50vh;border-right:none;border-bottom:1px solid var(--color-border)}.workspace-panel{height:50vh}.preview-container{margin:var(--space-md)}.code-panel{margin:0 var(--space-md) var(--space-md);height:200px}}.typing-indicator{display:flex;gap:4px;padding:var(--space-md) var(--space-lg)}.typing-indicator span{width:8px;height:8px;background:var(--color-text-muted);border-radius:var(--radius-full);animation:typing 1.4s ease-in-out infinite}.typing-indicator span:nth-child(1){animation-delay:0s}.typing-indicator span:nth-child(2){animation-delay:.2s}.typing-indicator span:nth-child(3){animation-delay:.4s}@keyframes typing{0%,60%,to{transform:translateY(0);opacity:.4}30%{transform:translateY(-4px);opacity:1}}.initial-loading{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:var(--color-bg-primary);z-index:1000}.loading-logo{text-align:center;display:flex;flex-direction:column;align-items:center;gap:var(--space-lg)}.loading-logo h2{color:var(--color-text-secondary);font-weight:500;letter-spacing:-.5px}.spinner{width:40px;height:40px;border:3px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.login-container{position:fixed;inset:0;display:flex;align-items:center;justify-content:center;background:#0f172a;padding:var(--space-lg);overflow:hidden}.login-container:before{content:"";position:absolute;width:140%;height:140%;top:-20%;left:-20%;background:radial-gradient(circle at 20% 30%,rgba(99,102,241,.15) 0%,transparent 40%),radial-gradient(circle at 80% 70%,rgba(139,92,246,.15) 0%,transparent 40%),radial-gradient(circle at 50% 50%,rgba(79,70,229,.1) 0%,transparent 50%);filter:blur(80px);animation:bgRotate 20s linear infinite;z-index:0}@keyframes bgRotate{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.login-card{background:#141414cc;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);padding:var(--space-2xl);border-radius:24px;box-shadow:0 25px 50px -12px #00000080,0 0 40px #6366f11a;width:100%;max-width:440px;border:1px solid rgba(255,255,255,.1);animation:cardAppear .6s cubic-bezier(.16,1,.3,1);position:relative;z-index:1}[data-theme=light] .login-card{background:#ffffffe6;border:1px solid rgba(0,0,0,.05)}@keyframes cardAppear{0%{opacity:0;transform:translateY(30px) scale(.95)}to{opacity:1;transform:translateY(0) scale(1)}}.login-header{text-align:center;margin-bottom:var(--space-xl)}.login-logo{display:flex;justify-content:center;margin-bottom:var(--space-lg)}.login-header h1{font-size:32px;font-weight:700;color:#fff;margin-bottom:8px;letter-spacing:-1px}[data-theme=light] .login-header h1{color:var(--color-text-primary)}.login-header p{color:#fff9;font-size:15px}[data-theme=light] .login-header p{color:var(--color-text-secondary)}.auth-error{background:#ef44441a;border:1px solid rgba(239,68,68,.2);color:#f87171;padding:12px;border-radius:var(--radius-md);margin-bottom:var(--space-lg);font-size:14px;text-align:center}.auth-success{background:#22c55e1a;border:1px solid rgba(34,197,94,.2);color:#4ade80;padding:12px;border-radius:var(--radius-md);margin-bottom:var(--space-lg);font-size:14px;text-align:center}[data-theme=light] .auth-success{background:#f0fdf4;border-color:#bbf7d0;color:#15803d}.auth-form{display:flex;flex-direction:column;gap:var(--space-lg)}.input-group{display:flex;flex-direction:column;gap:8px}.input-group label{font-size:12px;font-weight:600;color:#ffffff80;text-transform:uppercase;letter-spacing:1px}[data-theme=light] .input-group label{color:var(--color-text-muted)}.input-wrapper{position:relative;display:flex;align-items:center}.input-icon{position:absolute;left:14px;color:#ffffff4d;pointer-events:none}[data-theme=light] .input-icon{color:#9ca3af}.input-wrapper input{width:100%;padding:14px 14px 14px 44px;border-radius:12px;border:1px solid rgba(255,255,255,.1);background:#ffffff0d;color:#fff;font-size:15px;transition:all .2s}[data-theme=light] .input-wrapper input{background:#f3f4f6;border-color:#e5e7eb;color:#111827}.input-wrapper input:focus{outline:none;border-color:var(--color-primary);background:#ffffff14;box-shadow:0 0 0 4px #6366f11a}[data-theme=light] .input-wrapper input:focus{background:#fff;box-shadow:0 0 0 4px #6366f10d}.btn-auth-primary{display:flex;align-items:center;justify-content:center;gap:8px;padding:14px;background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-dark) 100%);color:#fff;border:none;border-radius:12px;font-size:16px;font-weight:600;cursor:pointer;transition:all .2s;margin-top:8px}.btn-auth-primary:hover{transform:translateY(-2px);box-shadow:0 8px 20px #6366f166}.btn-auth-primary:active{transform:translateY(0)}.btn-auth-primary:disabled{opacity:.7;cursor:not-allowed;transform:none}.auth-divider{display:flex;align-items:center;margin:var(--space-xl) 0;color:#ffffff4d;font-size:12px;text-transform:uppercase;letter-spacing:1px}[data-theme=light] .auth-divider{color:var(--color-text-muted)}.auth-divider:before,.auth-divider:after{content:"";flex:1;height:1px;background:#ffffff1a}[data-theme=light] .auth-divider:before,[data-theme=light] .auth-divider:after{background:var(--color-border)}.auth-divider span{padding:0 16px}.btn-auth-google{display:flex;align-items:center;justify-content:center;width:100%;gap:12px;padding:12px;background:transparent;border:1px solid rgba(255,255,255,.15);color:#fff;border-radius:12px;font-size:15px;font-weight:500;cursor:pointer;transition:all .2s}.btn-auth-google:hover{background:#ffffff0d;border-color:#ffffff4d}[data-theme=light] .btn-auth-google{background:#fff;border-color:#e5e7eb;color:var(--color-text-primary)}.auth-footer{margin-top:var(--space-xl);text-align:center;font-size:14px;color:#ffffff80}[data-theme=light] .auth-footer{color:var(--color-text-secondary)}.footer-text{display:flex;align-items:center;justify-content:center;gap:6px;white-space:nowrap}.btn-toggle-auth{background:transparent;border:none;color:var(--color-primary-light);font-weight:600;cursor:pointer;padding:0;display:inline-flex;align-items:center;gap:4px;transition:all .2s}.btn-toggle-auth:hover{color:#fff;text-decoration:underline}[data-theme=light] .btn-toggle-auth{color:var(--color-primary)}[data-theme=light] .btn-toggle-auth:hover{color:var(--color-primary-dark)}.spinner-small{width:20px;height:20px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .8s linear infinite}.main-placeholder{flex:1;display:flex;align-items:center;justify-content:center;background:var(--color-bg-primary);padding:var(--space-2xl)}.placeholder-hero{text-align:center;max-width:500px;animation:heroSlideUp .6s cubic-bezier(.16,1,.3,1)}@keyframes heroSlideUp{0%{opacity:0;transform:translateY(40px)}to{opacity:1;transform:translateY(0)}}.hero-icon{font-size:64px;margin-bottom:var(--space-xl)}.placeholder-hero h1{font-size:32px;font-weight:700;color:var(--color-text-primary);margin-bottom:var(--space-md);letter-spacing:-1px}.placeholder-hero p{font-size:18px;color:var(--color-text-secondary);margin-bottom:var(--space-2xl);line-height:1.6}.btn-hero-action{display:flex;align-items:center;justify-content:center;gap:12px;padding:18px 32px;background:linear-gradient(135deg,var(--color-primary) 0%,var(--color-primary-dark) 100%);color:#fff;border:none;border-radius:16px;font-size:18px;font-weight:700;cursor:pointer;transition:all .2s;margin:0 auto;box-shadow:0 10px 25px #6366f14d}.btn-hero-action:hover{transform:translateY(-4px) scale(1.05);box-shadow:0 15px 35px #6366f166}.modal-overlay{position:fixed;inset:0;background:#0006;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:center;z-index:2000;padding:var(--space-lg);animation:fadeIn .2s ease-out}@keyframes fadeIn{0%{opacity:0}to{opacity:1}}.modal-card{background:var(--color-bg-secondary);width:100%;max-width:400px;border-radius:24px;padding:32px;box-shadow:0 25px 50px -12px #00000040;border:1px solid var(--color-border);animation:modalAppear .3s cubic-bezier(.16,1,.3,1)}@keyframes modalAppear{0%{opacity:0;transform:scale(.9) translateY(20px)}to{opacity:1;transform:scale(1) translateY(0)}}.modal-header{margin-bottom:24px;text-align:center}.modal-header h2{font-size:24px;font-weight:700;color:var(--color-text-primary);margin-bottom:8px}.modal-header p{font-size:15px;color:var(--color-text-secondary);line-height:1.5}.modal-body{margin-bottom:24px}.modal-input{width:100%;padding:14px 18px;border-radius:12px;border:2px solid var(--color-border);background:var(--color-bg-tertiary);color:var(--color-text-primary);font-size:16px;font-family:inherit;transition:all .2s}.modal-input:focus{outline:none;border-color:var(--color-primary);background:var(--color-bg-secondary);box-shadow:0 0 0 4px #6366f11a}.modal-actions{display:flex;flex-direction:column;gap:12px}.btn-modal-primary{padding:14px;border-radius:12px;border:none;background:var(--color-primary);color:#fff;font-size:16px;font-weight:700;cursor:pointer;transition:all .2s}.btn-modal-primary:hover{transform:translateY(-2px);filter:brightness(1.1);box-shadow:0 4px 12px #6366f14d}.btn-modal-danger{background:#ef4444}.btn-modal-danger:hover{box-shadow:0 4px 12px #ef44444d}.btn-modal-secondary{padding:14px;border-radius:12px;border:1px solid var(--color-border);background:transparent;color:var(--color-text-secondary);font-size:15px;font-weight:600;cursor:pointer;transition:all .2s}.btn-modal-secondary:hover{background:var(--color-bg-tertiary);color:var(--color-text-primary)}.chat-messages::-webkit-scrollbar,.code-editor::-webkit-scrollbar{width:8px}.chat-messages::-webkit-scrollbar-track,.code-editor::-webkit-scrollbar-track{background:transparent}.chat-messages::-webkit-scrollbar-thumb{background:var(--color-border);border-radius:var(--radius-full)}.code-editor::-webkit-scrollbar-thumb{background:#313244;border-radius:var(--radius-full)}