@import"https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap";*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-size:16px;-webkit-text-size-adjust:100%}body{margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;color:#111827;line-height:1.5}code{font-family:JetBrains Mono,Fira Code,Consolas,monospace}.auth-container{min-height:100vh;background:transparent;display:flex;align-items:center;justify-content:center;padding:20px}.auth-card{background:#fff;border:1px solid #e5e7eb;border-radius:12px;padding:40px;width:100%;max-width:400px;box-shadow:0 4px 6px -1px #00000012}.auth-logo{text-align:center;margin-bottom:32px}.auth-logo-icon{background:#2563eb;width:64px;height:64px;border-radius:14px;display:flex;align-items:center;justify-content:center;margin:0 auto 20px;color:#fff}.auth-logo-icon svg{width:32px;height:32px;stroke:#fff;stroke-width:1.5;fill:none}.auth-title{text-align:center;font-size:28px;font-weight:600;color:#111827;margin-bottom:8px}.auth-subtitle{text-align:center;color:#6b7280;font-size:15px;margin-bottom:32px}.auth-form{display:flex;flex-direction:column;gap:20px}.auth-input-group{position:relative}.auth-label{display:block;font-size:14px;font-weight:500;color:#374151;margin-bottom:8px}.auth-input{width:100%;padding:14px 16px;border:1px solid #e5e7eb;border-radius:8px;font-size:15px;font-family:inherit;background:#f9fafb;color:#111827;transition:all .2s ease}.auth-input:focus{outline:none;background:#fff;border-color:#2563eb;box-shadow:0 0 0 3px #2563eb1a}.auth-input::-moz-placeholder{color:#9ca3af}.auth-input::placeholder{color:#9ca3af}.auth-button{background:#2563eb;color:#fff;border:none;padding:14px 24px;border-radius:8px;font-size:15px;font-weight:600;font-family:inherit;cursor:pointer;transition:background .2s ease;margin-top:8px}.auth-button:hover:not(:disabled){background:#1d4ed8}.auth-button:disabled{opacity:.5;cursor:not-allowed}.auth-link-text{text-align:center;color:#6b7280;font-size:14px;margin-top:24px}.auth-link{color:#2563eb;text-decoration:none;font-weight:500}.auth-link:hover{text-decoration:underline}.auth-error{background:#fef2f2;border:1px solid #fecaca;color:#dc2626;padding:14px 16px;border-radius:8px;font-size:14px;display:flex;align-items:center;gap:10px}.auth-error svg{width:18px;height:18px;stroke:currentColor;stroke-width:2;fill:none;flex-shrink:0}.password-toggle{position:absolute;right:14px;top:50%;transform:translateY(-50%);background:none;border:none;color:#9ca3af;cursor:pointer;padding:4px;display:flex}.password-toggle:hover{color:#6b7280}.auth-divider{display:flex;align-items:center;gap:16px;margin:24px 0;color:#9ca3af;font-size:13px}.auth-divider:before,.auth-divider:after{content:"";flex:1;height:1px;background:#e5e7eb}@media (max-width: 640px){.auth-card{padding:32px 24px}.auth-title{font-size:24px}.auth-input{padding:12px 14px;font-size:14px}.auth-button{padding:12px 20px;font-size:14px}}@media (max-width: 480px){.auth-container{padding:16px}.auth-card{padding:28px 20px}}.sidebar{background:var(--color-surface);color:var(--color-text-primary);height:100vh;width:var(--sidebar-width);min-width:var(--sidebar-width);max-width:var(--sidebar-width);display:flex;flex-direction:column;box-sizing:border-box;border-right:1px solid var(--color-border)}.sidebar-header{padding:var(--space-4);border-bottom:1px solid var(--color-border);flex-shrink:0}.new-chat-btn{display:flex;justify-content:space-between;align-items:center;width:100%;margin:0;padding:var(--space-3) var(--space-4);border-radius:var(--radius-lg);background:var(--color-accent);border:none;cursor:pointer;color:#fff;font-size:var(--font-size-sm);font-family:var(--font-family-primary);font-weight:var(--font-weight-medium);transition:all var(--transition-normal);box-sizing:border-box;box-shadow:var(--shadow-sm)}.btn-content{display:flex;align-items:center;gap:.5rem}.btn-icon{width:16px;height:16px;stroke:currentColor;stroke-width:2;fill:none}.new-chat-btn:hover{background:var(--color-accent-hover);box-shadow:var(--shadow-md)}.new-chat-btn span{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium)}.sidebar-content{flex:1;overflow-y:auto;overflow-x:hidden;padding:var(--space-3) 0}.history{list-style:none;margin:0;padding:0 var(--space-3);display:flex;flex-direction:column;gap:.25rem}.history-item{display:flex;align-items:center;gap:.75rem;padding:var(--space-3) var(--space-3);margin:0;border-radius:var(--radius-md);cursor:pointer;font-size:var(--font-size-sm);color:var(--color-text-secondary);transition:all var(--transition-normal);position:relative;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;box-sizing:border-box}.history-item .chat-icon{width:16px;height:16px;stroke:currentColor;stroke-width:1.5;fill:none;flex-shrink:0}.history-item span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;flex:1}.history-item:hover{background:var(--color-surface-secondary);color:var(--color-text-primary)}.history-item.active{background:var(--color-accent-light);color:var(--color-accent)}.history-item.active .chat-icon{stroke:var(--color-accent)}.delete-btn{background:none;border:none;color:var(--color-text-muted);cursor:pointer;padding:4px;border-radius:var(--radius-sm);display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast);opacity:0}.history-item:hover .delete-btn{opacity:1}.delete-btn:hover{color:var(--color-error-500);background:var(--color-error-50)}.delete-btn svg{width:14px;height:14px;stroke:currentColor;stroke-width:1.5;fill:none}.sidebar-footer{padding:var(--space-4);border-top:1px solid var(--color-border);flex-shrink:0}.brand{display:flex;align-items:center;justify-content:center;gap:var(--space-2);font-size:var(--font-size-sm);text-align:center;color:var(--color-text-muted);padding:var(--space-2)}.brand-icon{width:20px;height:20px;stroke:var(--color-accent);stroke-width:1.5;fill:none}.brand p{margin:0;font-weight:var(--font-weight-medium)}.mobile-close-btn{display:none;background:none;border:none;color:var(--color-text-secondary);cursor:pointer;padding:.5rem;border-radius:var(--radius-sm);transition:all var(--transition-fast)}.mobile-close-btn:hover{background:var(--color-surface-secondary);color:var(--color-text-primary)}.mobile-close-btn svg{width:18px;height:18px;stroke:currentColor;stroke-width:2;fill:none}.sidebar-content::-webkit-scrollbar{width:6px}.sidebar-content::-webkit-scrollbar-track{background:transparent}.sidebar-content::-webkit-scrollbar-thumb{background:var(--color-gray-300);border-radius:var(--radius-full)}.sidebar-content::-webkit-scrollbar-thumb:hover{background:var(--color-gray-400)}@media (max-width: 768px){.sidebar{position:fixed;top:0;left:calc(-1 * var(--sidebar-width));z-index:var(--z-modal);transition:left var(--transition-normal);height:100vh;box-shadow:none}.sidebar.mobile-open{left:0;box-shadow:var(--shadow-xl)}.mobile-close-btn{display:flex!important;align-items:center;justify-content:center}.delete-btn{opacity:1}}@media (max-width: 480px){.sidebar{width:280px;min-width:280px;max-width:280px;left:-280px}.sidebar.mobile-open{left:0}}@media (min-width: 1440px){.sidebar{width:300px;min-width:300px;max-width:300px}}.chatWindow{background:transparent;height:100vh;width:100vw;max-width:100vw;display:flex;flex-direction:column;color:var(--color-text-primary);overflow-x:hidden;box-sizing:border-box;position:relative;margin:0;padding:0}.navbar{width:100%;display:flex;justify-content:space-between;align-items:center;background:var(--color-surface);border-bottom:1px solid var(--color-border);padding:var(--space-4) var(--space-6);flex-shrink:0;box-sizing:border-box;position:relative;z-index:var(--z-fixed);gap:var(--space-4)}.navbar-brand{display:flex;align-items:center;gap:var(--space-3);font-size:var(--font-size-lg);font-weight:var(--font-weight-semibold);color:var(--color-text-primary)}.navbar-brand .brand-icon{width:28px;height:28px;stroke:var(--color-accent);stroke-width:1.5;fill:none}.navbar-title{display:flex;align-items:center;gap:var(--space-2)}.navbar-title .chevron{width:16px;height:16px;stroke:var(--color-text-muted);stroke-width:2;fill:none;cursor:pointer;transition:stroke var(--transition-fast)}.navbar-user{display:flex;align-items:center}.user-profile{display:flex;align-items:center;gap:var(--space-4);padding:var(--space-1) var(--space-2)}.user-info{display:flex;align-items:center;gap:var(--space-3);padding-right:var(--space-4);border-right:1px solid var(--color-border)}.user-avatar{width:32px;height:32px;background:var(--color-accent);border-radius:50%;display:flex;align-items:center;justify-content:center;color:#fff;flex-shrink:0}.user-avatar svg{width:18px;height:18px;stroke:currentColor;stroke-width:2;fill:none}.user-name{font-size:var(--font-size-sm);font-weight:var(--font-weight-medium);color:var(--color-text-primary);white-space:nowrap}.logout-btn{background:none;border:none;color:var(--color-text-muted);cursor:pointer;padding:6px;border-radius:var(--radius-md);display:flex;align-items:center;justify-content:center;transition:all var(--transition-fast)}.logout-btn:hover{color:var(--color-error-500);background:var(--color-error-50)}.logout-btn svg{width:20px;height:20px;stroke:currentColor;stroke-width:2;fill:none}@media (max-width: 768px){.user-name{display:none}.user-info{padding-right:0;border-right:none}}.navbar-title .chevron:hover{stroke:var(--color-text-secondary)}.mobile-menu-btn{display:none;background:none;border:none;color:var(--color-text-secondary);cursor:pointer;padding:.5rem;border-radius:var(--radius-sm);transition:all var(--transition-fast)}.mobile-menu-btn:hover{background:var(--color-surface-secondary);color:var(--color-text-primary)}.mobile-menu-btn svg{width:20px;height:20px;stroke:currentColor;stroke-width:2;fill:none}.chatContent{flex:1;width:100%;min-height:0;position:relative;overflow:hidden;display:flex;flex-direction:column;z-index:1;margin:0;padding:0}.loadingContainer{position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:var(--color-surface);padding:var(--space-8);border-radius:var(--radius-lg);border:1px solid var(--color-border);box-shadow:var(--shadow-lg);z-index:100}.chatInput{width:100%;display:flex;flex-direction:column;align-items:center;padding:var(--space-4) var(--space-6);background:var(--color-surface);border-top:1px solid var(--color-border);flex-shrink:0;box-sizing:border-box;margin:0}.inputBox{width:100%;max-width:720px;position:relative;min-height:52px;display:flex;align-items:center;background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius-xl);padding:var(--space-1);transition:all var(--transition-normal);box-sizing:border-box;margin:0;box-shadow:var(--shadow-sm)}.inputBox:focus-within{border-color:var(--color-accent);box-shadow:0 0 0 3px var(--color-accent-light)}input{flex:1;min-width:0;border:none;background:transparent;padding:var(--space-3) var(--space-4);padding-right:56px;font-size:var(--font-size-base);font-family:var(--font-family-primary);color:var(--color-text-primary);outline:none;line-height:var(--line-height-normal);box-sizing:border-box}input::-moz-placeholder{color:var(--color-text-muted)}input::placeholder{color:var(--color-text-muted)}#submit{cursor:pointer;height:40px;width:40px;position:absolute;right:var(--space-1);display:flex;align-items:center;justify-content:center;background:var(--color-accent);border-radius:var(--radius-lg);transition:all var(--transition-fast);flex-shrink:0;border:none}#submit svg{width:18px;height:18px;stroke:#fff;stroke-width:2;fill:none}#submit:hover{background:var(--color-accent-hover);transform:scale(1.02)}.info{font-size:var(--font-size-sm);padding:var(--space-3) var(--space-2) 0;color:var(--color-text-muted);text-align:center;line-height:var(--line-height-normal);max-width:720px;margin:0}@media (max-width: 480px){.navbar{padding:var(--space-3) var(--space-4)}.mobile-menu-btn{display:flex!important;align-items:center;justify-content:center}.navbar-brand{font-size:var(--font-size-base);gap:var(--space-2)}.navbar-brand .brand-icon{width:24px;height:24px}.chatInput{padding:var(--space-3) var(--space-4)}.inputBox{border-radius:var(--radius-lg);min-height:44px}input{padding:var(--space-2) var(--space-3);padding-right:48px;font-size:var(--font-size-sm)}#submit{height:34px;width:34px;border-radius:var(--radius-md)}#submit svg{width:16px;height:16px}.info{font-size:var(--font-size-xs)}}@media (max-width: 768px) and (min-width: 481px){.mobile-menu-btn{display:flex!important;align-items:center;justify-content:center}.navbar{padding:var(--space-3) var(--space-5)}}@media (min-width: 1200px){.inputBox,.info{max-width:800px}}.chat-container{height:100%;display:flex;flex-direction:column;background-color:transparent;overflow:hidden}.welcome-message{text-align:center;padding:var(--space-10) var(--space-4);flex-shrink:0}.welcome-message h1{font-size:var(--font-size-2xl);color:var(--color-text-secondary);font-weight:var(--font-weight-normal);margin:0}.chats{flex:1;max-width:900px;margin:0 auto;width:100%;overflow-y:auto;overflow-x:hidden;padding:var(--space-4) var(--space-6) var(--space-8);display:flex;flex-direction:column;gap:var(--space-4);box-sizing:border-box;min-height:0}.message-wrapper{display:flex;width:100%;animation:fadeInUp .2s ease-out;box-sizing:border-box}.user-wrapper{justify-content:flex-end}.ai-wrapper{justify-content:flex-start}.message{max-width:70%;min-width:200px;padding:var(--space-4);border-radius:var(--radius-lg);font-size:var(--font-size-base);line-height:var(--line-height-relaxed);position:relative;word-wrap:break-word;overflow-wrap:break-word;box-sizing:border-box}.user-message{background:var(--color-accent);color:#fff;border-bottom-right-radius:var(--radius-sm);box-shadow:var(--shadow-sm)}.user-message p{margin:0;word-wrap:break-word;overflow-wrap:break-word}.ai-message{background:var(--color-surface);color:var(--color-text-primary);border:1px solid var(--color-border);border-bottom-left-radius:var(--radius-sm);box-shadow:var(--shadow-sm)}.ai-message p{margin:0;word-wrap:break-word;overflow-wrap:break-word}.ai-message h1,.ai-message h2,.ai-message h3{color:var(--color-text-primary);margin:var(--space-3) 0;font-weight:var(--font-weight-semibold);word-wrap:break-word}.ai-message h1{font-size:var(--font-size-xl)}.ai-message h2{font-size:var(--font-size-lg)}.ai-message h3{font-size:var(--font-size-base)}.ai-message ul,.ai-message ol{margin:var(--space-2) 0;padding-left:var(--space-6)}.ai-message li{margin:var(--space-1) 0;word-wrap:break-word}.ai-message code{background:var(--color-gray-100);padding:.15rem .4rem;border-radius:var(--radius-sm);font-size:var(--font-size-sm);font-family:var(--font-family-mono);color:var(--color-accent);word-break:break-all}.ai-message pre{background:var(--color-gray-900)!important;border-radius:var(--radius-md);padding:var(--space-4);margin:var(--space-3) 0;overflow-x:auto;max-width:100%;box-sizing:border-box}.ai-message pre code{background:none;padding:0;word-break:normal;white-space:pre;color:#e5e7eb}.hljs{border-radius:var(--radius-md)!important;background:var(--color-gray-900)!important;max-width:100%;overflow-x:auto}.typing-message{position:relative}.typing-indicator{display:inline-flex;align-items:center;margin-left:var(--space-2);margin-top:var(--space-2)}.typing-indicator span{width:5px;height:5px;border-radius:50%;background:var(--color-accent);margin:0 2px;animation:typing 1.4s infinite}.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(-8px);opacity:1}}@keyframes fadeInUp{0%{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}.chats::-webkit-scrollbar{width:6px}.chats::-webkit-scrollbar-track{background:transparent}.chats::-webkit-scrollbar-thumb{background:var(--color-gray-300);border-radius:var(--radius-full)}.chats::-webkit-scrollbar-thumb:hover{background:var(--color-gray-400)}.ai-message blockquote{border-left:3px solid var(--color-accent);padding-left:var(--space-4);margin:var(--space-3) 0;background:var(--color-gray-50);border-radius:0 var(--radius-sm) var(--radius-sm) 0;padding-top:var(--space-2);padding-bottom:var(--space-2);word-wrap:break-word}.ai-message table{border-collapse:collapse;width:100%;margin:var(--space-3) 0;max-width:100%;overflow-x:auto;display:block;font-size:var(--font-size-sm)}.ai-message th,.ai-message td{border:1px solid var(--color-border);padding:var(--space-2) var(--space-3);text-align:left;word-wrap:break-word;min-width:100px}.ai-message th{background:var(--color-gray-100);font-weight:var(--font-weight-semibold)}@media (max-width: 480px){.welcome-message{padding:var(--space-6) var(--space-3)}.welcome-message h1{font-size:var(--font-size-lg)}.chats{padding:var(--space-3);gap:var(--space-3)}.message{max-width:90%;min-width:100px;padding:var(--space-3);font-size:var(--font-size-sm);border-radius:var(--radius-md)}.ai-message code{font-size:var(--font-size-xs)}.ai-message pre{padding:var(--space-3);font-size:var(--font-size-xs)}}@media (max-width: 768px) and (min-width: 481px){.welcome-message h1{font-size:var(--font-size-xl)}.chats{padding:var(--space-4);gap:var(--space-4)}.message{max-width:85%;padding:var(--space-3);font-size:var(--font-size-sm)}}@media (min-width: 1200px){.chats{max-width:1000px}.message{max-width:65%}.welcome-message h1{font-size:var(--font-size-3xl)}}@media (prefers-reduced-motion: reduce){.message-wrapper,.typing-indicator span{animation:none}}pre code.hljs{display:block;overflow-x:auto;padding:1em}code.hljs{padding:3px 5px}/*!
  Theme: GitHub Dark
  Description: Dark theme as seen on github.com
  Author: github.com
  Maintainer: @Hirse
  Updated: 2021-05-15

  Outdated base version: https://github.com/primer/github-syntax-dark
  Current colors taken from GitHub's CSS
*/.hljs{color:#c9d1d9;background:#0d1117}.hljs-doctag,.hljs-keyword,.hljs-meta .hljs-keyword,.hljs-template-tag,.hljs-template-variable,.hljs-type,.hljs-variable.language_{color:#ff7b72}.hljs-title,.hljs-title.class_,.hljs-title.class_.inherited__,.hljs-title.function_{color:#d2a8ff}.hljs-attr,.hljs-attribute,.hljs-literal,.hljs-meta,.hljs-number,.hljs-operator,.hljs-variable,.hljs-selector-attr,.hljs-selector-class,.hljs-selector-id{color:#79c0ff}.hljs-regexp,.hljs-string,.hljs-meta .hljs-string{color:#a5d6ff}.hljs-built_in,.hljs-symbol{color:#ffa657}.hljs-comment,.hljs-code,.hljs-formula{color:#8b949e}.hljs-name,.hljs-quote,.hljs-selector-tag,.hljs-selector-pseudo{color:#7ee787}.hljs-subst{color:#c9d1d9}.hljs-section{color:#1f6feb;font-weight:700}.hljs-bullet{color:#f2cc60}.hljs-emphasis{color:#c9d1d9;font-style:italic}.hljs-strong{color:#c9d1d9;font-weight:700}.hljs-addition{color:#aff5b4;background-color:#033a16}.hljs-deletion{color:#ffdcd7;background-color:#67060c}.login-container{min-height:100vh;background:transparent;display:flex;align-items:center;justify-content:center;padding:32px;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.login-wrapper{width:100%;max-width:420px}.login-card{background:#fff;border-radius:16px;padding:40px;border:1px solid #e5e7eb;box-shadow:0 4px 6px -1px #00000012,0 2px 4px -1px #0000000a;transition:box-shadow .2s ease}.login-card:hover{box-shadow:0 10px 25px -5px #0000001a,0 4px 6px -2px #0000000d}.login-header{text-align:center;margin-bottom:32px}.brand-logo{display:flex;align-items:center;justify-content:center;gap:12px;margin-bottom:24px}.logo-icon{width:48px;height:48px;background:#2563eb;border-radius:12px;display:flex;align-items:center;justify-content:center;color:#fff}.logo-icon svg{width:24px;height:24px;stroke:#fff;stroke-width:1.5;fill:none}.brand-name{font-size:26px;font-weight:700;color:#111827;margin:0}.welcome-title{font-size:28px;font-weight:700;color:#111827;margin:0 0 8px}.welcome-subtitle{font-size:15px;color:#6b7280;margin:0;line-height:1.5}.login-form{display:flex;flex-direction:column;gap:20px;margin-bottom:24px}.form-label{display:block;font-size:14px;font-weight:500;color:#374151;margin-bottom:8px}.form-input{width:100%;padding:14px 16px 14px 48px;border:1px solid #e5e7eb;border-radius:10px;font-size:15px;font-family:inherit;background:#f9fafb;color:#111827;transition:all .2s ease;box-sizing:border-box}.input-icon{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:#9ca3af;display:flex}.input-icon svg{width:18px;height:18px;stroke:currentColor;stroke-width:1.5;fill:none}.validation-icon{position:absolute;right:16px;top:50%;transform:translateY(-50%);display:flex}.validation-icon svg{width:18px;height:18px;stroke:currentColor;stroke-width:2;fill:none}.password-toggle{position:absolute;right:48px;top:50%;transform:translateY(-50%);background:none;border:none;color:#9ca3af;cursor:pointer;padding:6px;border-radius:6px;display:flex}.password-toggle svg{width:18px;height:18px;stroke:currentColor;stroke-width:1.5;fill:none}.field-error{display:flex;align-items:center;gap:6px;margin-top:8px;color:#ef4444;font-size:13px;font-weight:500}.submit-error{display:flex;align-items:center;gap:10px;padding:14px 16px;background:#fef2f2;border:1px solid #fecaca;border-radius:10px;color:#dc2626;font-size:14px;font-weight:500;margin-bottom:16px}.submit-button{background:#2563eb;color:#fff;border:none;padding:14px 24px;border-radius:10px;font-size:15px;font-weight:600;font-family:inherit;cursor:pointer;transition:all .2s ease;min-height:48px;display:flex;align-items:center;justify-content:center}.button-content{display:flex;align-items:center;gap:10px}.loading-spinner{width:18px;height:18px;border:2px solid rgba(255,255,255,.3);border-top:2px solid white;border-radius:50%;animation:spin .8s linear infinite}.login-footer{margin-top:8px}.form-footer{text-align:center;margin-bottom:20px}.forgot-link{color:#2563eb;text-decoration:none;font-size:14px;font-weight:500}.forgot-link:hover{text-decoration:underline}.signup-section{padding-top:20px;border-top:1px solid #e5e7eb;text-align:center}.divider{margin-bottom:16px}.divider span{color:#6b7280;font-size:14px}.signup-button{display:inline-flex;align-items:center;justify-content:center;width:100%;padding:14px 24px;background:transparent;border:1px solid #e5e7eb;border-radius:10px;color:#374151;text-decoration:none;font-size:15px;font-weight:500;transition:all .2s ease;min-height:48px}.signup-button:hover{background:#f9fafb;border-color:#2563eb;color:#2563eb}@media (max-width: 640px){.login-container{padding:20px}.login-card{padding:32px 24px}.brand-name,.welcome-title{font-size:24px}.form-input{padding:12px 14px 12px 44px;font-size:14px}.submit-button,.signup-button{min-height:44px;font-size:14px}}@media (max-width: 480px){.login-container{padding:16px}.login-card{padding:28px 20px}.brand-logo{flex-direction:column;gap:10px}.logo-icon{width:44px;height:44px}}.signup-container{min-height:100vh;background:transparent;display:flex;align-items:center;justify-content:center;padding:24px;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}.signup-wrapper{width:100%;max-width:440px}.signup-card{background:#fff;border-radius:16px;padding:36px;border:1px solid #e5e7eb;box-shadow:0 4px 6px -1px #00000012,0 2px 4px -1px #0000000a;transition:box-shadow .2s ease}.signup-card:hover{box-shadow:0 10px 25px -5px #0000001a,0 4px 6px -2px #0000000d}.signup-header{text-align:center;margin-bottom:28px}.brand-logo{display:flex;align-items:center;justify-content:center;gap:12px;margin-bottom:20px}.logo-icon{width:44px;height:44px;background:#2563eb;border-radius:10px;display:flex;align-items:center;justify-content:center;color:#fff}.logo-icon svg{width:22px;height:22px;stroke:#fff;stroke-width:1.5;fill:none}.brand-name{font-size:24px;font-weight:700;color:#111827;margin:0}.welcome-title{font-size:26px;font-weight:700;color:#111827;margin:0 0 6px}.welcome-subtitle{font-size:14px;color:#6b7280;margin:0;line-height:1.5}.signup-form{display:flex;flex-direction:column;gap:18px;margin-bottom:24px}.form-group{position:relative}.form-label{display:block;font-size:13px;font-weight:500;color:#374151;margin-bottom:6px}.input-wrapper{position:relative}.form-input{width:100%;padding:12px 14px 12px 44px;border:1px solid #e5e7eb;border-radius:8px;font-size:14px;font-family:inherit;background:#f9fafb;color:#111827;transition:all .2s ease;box-sizing:border-box}.form-input:focus{outline:none;background:#fff;border-color:#2563eb;box-shadow:0 0 0 3px #2563eb1a}.form-input::-moz-placeholder{color:#9ca3af}.form-input::placeholder{color:#9ca3af}.input-wrapper.error .form-input{border-color:#ef4444;background:#fef2f2}.input-wrapper.valid .form-input{border-color:#22c55e;background:#f0fdf4}.input-icon{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:#9ca3af;display:flex}.input-icon svg{width:16px;height:16px;stroke:currentColor;stroke-width:1.5;fill:none}.validation-icon{position:absolute;right:14px;top:50%;transform:translateY(-50%);display:flex}.validation-icon svg{width:16px;height:16px;stroke:currentColor;stroke-width:2;fill:none}.validation-icon.success{color:#22c55e}.password-toggle{position:absolute;right:42px;top:50%;transform:translateY(-50%);background:none;border:none;color:#9ca3af;cursor:pointer;padding:4px;border-radius:4px;display:flex}.password-toggle svg{width:16px;height:16px;stroke:currentColor;stroke-width:1.5;fill:none}.password-toggle:hover{color:#6b7280;background:#f3f4f6}.field-error{display:flex;align-items:center;gap:6px;margin-top:6px;color:#ef4444;font-size:12px;font-weight:500}.submit-error{display:flex;align-items:center;gap:10px;padding:12px 14px;background:#fef2f2;border:1px solid #fecaca;border-radius:8px;color:#dc2626;font-size:13px;font-weight:500;margin-bottom:14px}.submit-button{background:#2563eb;color:#fff;border:none;padding:12px 20px;border-radius:8px;font-size:14px;font-weight:600;font-family:inherit;cursor:pointer;transition:all .2s ease;min-height:44px;display:flex;align-items:center;justify-content:center}.submit-button:hover:not(:disabled){background:#1d4ed8}.submit-button:disabled{opacity:.5;cursor:not-allowed}.submit-button.valid:not(:disabled){background:#22c55e}.button-content{display:flex;align-items:center;gap:8px}.loading-spinner{width:16px;height:16px;border:2px solid rgba(255,255,255,.3);border-top:2px solid white;border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{0%{transform:rotate(0)}to{transform:rotate(360deg)}}.signin-section{padding-top:18px;border-top:1px solid #e5e7eb;text-align:center}.divider{margin-bottom:14px}.divider span{color:#6b7280;font-size:13px}.signin-button{display:inline-flex;align-items:center;justify-content:center;padding:10px 28px;background:transparent;border:1px solid #e5e7eb;border-radius:8px;color:#374151;text-decoration:none;font-size:14px;font-weight:500;transition:all .2s ease;min-width:120px}.signin-button:hover{background:#f9fafb;border-color:#2563eb;color:#2563eb}.password-strength{margin-top:8px}.strength-bar{height:3px;background:#e5e7eb;border-radius:2px;overflow:hidden;margin-bottom:4px}.strength-fill{height:100%;border-radius:2px;transition:all .3s ease}.strength-fill.weak{width:33%;background:#ef4444}.strength-fill.medium{width:66%;background:#f59e0b}.strength-fill.strong{width:100%;background:#22c55e}.strength-text{font-size:11px;color:#6b7280}@media (max-width: 640px){.signup-container{padding:16px}.signup-card{padding:28px 22px}.brand-name{font-size:22px}.welcome-title{font-size:24px}.signup-form{gap:16px}.submit-button{min-height:42px}}@media (max-width: 480px){.signup-card{padding:24px 18px}.brand-logo{flex-direction:column;gap:8px}.logo-icon{width:40px;height:40px}.welcome-title{font-size:22px}.form-input{padding:10px 12px 10px 38px}.signin-button{padding:8px 20px;min-width:100px}}:root{--color-primary-50: #eff6ff;--color-primary-100: #dbeafe;--color-primary-200: #bfdbfe;--color-primary-300: #93c5fd;--color-primary-400: #60a5fa;--color-primary-500: #3b82f6;--color-primary-600: #2563eb;--color-primary-700: #1d4ed8;--color-primary-800: #1e40af;--color-primary-900: #1e3a8a;--color-gray-50: #f9fafb;--color-gray-100: #f3f4f6;--color-gray-200: #e5e7eb;--color-gray-300: #d1d5db;--color-gray-400: #9ca3af;--color-gray-500: #6b7280;--color-gray-600: #4b5563;--color-gray-700: #374151;--color-gray-800: #1f2937;--color-gray-900: #111827;--color-success-50: #f0fdf4;--color-success-500: #22c55e;--color-success-600: #16a34a;--color-error-50: #fef2f2;--color-error-500: #ef4444;--color-error-600: #dc2626;--color-warning-50: #fffbeb;--color-warning-500: #f59e0b;--color-warning-600: #d97706;--color-background: #f8f9fa;--color-surface: #ffffff;--color-surface-elevated: #ffffff;--color-surface-secondary: #f3f4f6;--color-text-primary: #111827;--color-text-secondary: #4b5563;--color-text-muted: #6b7280;--color-border: #e5e7eb;--color-border-light: #f3f4f6;--color-accent: #2563eb;--color-accent-hover: #1d4ed8;--color-accent-light: rgba(37, 99, 235, .08);--font-family-primary: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;--font-family-mono: "JetBrains Mono", "Fira Code", "Consolas", monospace;--font-size-xs: .75rem;--font-size-sm: .875rem;--font-size-base: 1rem;--font-size-lg: 1.125rem;--font-size-xl: 1.25rem;--font-size-2xl: 1.5rem;--font-size-3xl: 1.875rem;--font-weight-normal: 400;--font-weight-medium: 500;--font-weight-semibold: 600;--font-weight-bold: 700;--line-height-tight: 1.25;--line-height-normal: 1.5;--line-height-relaxed: 1.75;--space-1: .25rem;--space-2: .5rem;--space-3: .75rem;--space-4: 1rem;--space-5: 1.25rem;--space-6: 1.5rem;--space-8: 2rem;--space-10: 2.5rem;--space-12: 3rem;--sidebar-width: 280px;--radius-sm: .375rem;--radius-md: .5rem;--radius-lg: .75rem;--radius-xl: 1rem;--radius-2xl: 1.5rem;--radius-full: 9999px;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .07), 0 2px 4px -1px rgba(0, 0, 0, .04);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .08), 0 4px 6px -2px rgba(0, 0, 0, .04);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .1), 0 10px 10px -5px rgba(0, 0, 0, .04);--transition-fast: .15s ease;--transition-normal: .2s ease;--transition-slow: .3s ease;--z-dropdown: 1000;--z-sticky: 1020;--z-fixed: 1030;--z-modal-backdrop: 1040;--z-modal: 1050;--bg-pattern-dot: radial-gradient(var(--color-gray-200) 1px, transparent 1px);--bg-pattern-size: 24px 24px}*{box-sizing:border-box}body{margin:0;padding:0;font-family:var(--font-family-primary);background-color:var(--color-background);background-image:var(--bg-pattern-dot);background-size:var(--bg-pattern-size);color:var(--color-text-primary);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}@media (prefers-reduced-motion: reduce){:root{--transition-fast: .01ms;--transition-normal: .01ms;--transition-slow: .01ms}}*{box-sizing:border-box;margin:0;padding:0}body{margin:0;padding:0;font-family:var(--font-family-primary);background-color:var(--color-background);color:var(--color-text-primary);line-height:var(--line-height-normal);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}.app{background-color:var(--color-background);display:flex;height:100vh;width:100vw;overflow:hidden}@media (max-width: 768px){.app{flex-direction:column}}@media (min-width: 769px){.app{flex-direction:row}}::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:transparent}::-webkit-scrollbar-thumb{background:var(--color-gray-300);border-radius:var(--radius-full)}::-webkit-scrollbar-thumb:hover{background:var(--color-gray-400)}::-moz-selection{background-color:var(--color-accent);color:#fff}::selection{background-color:var(--color-accent);color:#fff}*:focus-visible{outline:2px solid var(--color-accent);outline-offset:2px;border-radius:var(--radius-sm)}button{font-family:inherit;cursor:pointer}a{color:inherit;text-decoration:none}img{max-width:100%;height:auto;display:block}