:root{--color-bg-primary: #fafaf8;--color-bg-secondary: #f4f2ee;--color-bg-card: #ffffff;--color-bg-surface: #f8f7f5;--color-bg-hover: #f0eeea;--color-sidebar-bg: #1a1a1a;--color-sidebar-text: #e0e0e0;--color-sidebar-text-muted: #888888;--color-sidebar-active: rgba(255,255,255,.08);--color-sidebar-section: #666666;--color-text-primary: #1a1a1a;--color-text-secondary: #6b6b6b;--color-text-muted: #999999;--color-border: #e6e3de;--color-border-hover: #d4d0c8;--color-border-subtle: #f0eeea;--color-accent: #47aafd;--color-accent-hover: #2d96f0;--color-accent-light: #eef7ff;--color-success: #34d399;--color-warning: #f59e0b;--color-danger: #ef4444;--shadow-card: 0 1px 3px rgba(0,0,0,.04), 0 1px 2px rgba(0,0,0,.02);--shadow-card-hover: 0 4px 12px rgba(0,0,0,.06);--font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;--font-mono: "Inconsolata", "Courier New", monospace;--sidebar-width: 220px;--sidebar-collapsed-width: 60px;--header-height: 0px;--border-radius: 20px;--border-radius-sm: 12px}.app{display:flex;flex-direction:column;min-height:100vh;font-family:var(--font-sans);background:var(--color-bg-secondary);color:var(--color-text-primary);position:relative}.app.app-with-sidebar{background:#0a0a0a}.app-body{display:flex;flex-direction:row;flex:1;height:100vh;overflow:hidden}.app-body.has-breadcrumb{margin-top:84px}.breadcrumb-container{position:fixed;top:44px;left:0;right:0;background:var(--color-bg-primary);border-bottom:1px solid var(--color-border);z-index:199;padding:12px 0}.breadcrumb-wrapper{width:100%;max-width:1800px;margin:0 auto;padding:0 32px}.app-header{position:fixed;top:0;left:0;right:0;height:44px;background:#0a0a0a;border-bottom:none;z-index:200;display:flex;align-items:center}.header-content{width:100%;max-width:1800px;margin:0 auto;padding:0 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.2s;white-space:nowrap}.breadcrumb-item:hover{color:var(--color-text-primary)}.breadcrumb-item.active{color:var(--color-text-primary);cursor:default;font-weight:500}.breadcrumb-separator{color:#ccc;margin:0 4px;-webkit-user-select:none;user-select:none}.breadcrumb-item svg{width:14px;height:14px;flex-shrink:0;opacity:.7}.header-back-btn{display:flex;align-items:center;gap:6px;padding:8px 14px;background:var(--color-bg-surface);border:1px solid var(--color-border);border-radius:6px;color:var(--color-text-secondary);font-family:var(--font-sans);font-size:13px;font-weight:500;cursor:pointer;transition:all .2s;flex-shrink:0}.header-back-btn:hover{background:var(--color-bg-hover);border-color:var(--color-border-hover);color:var(--color-text-primary)}.header-back-btn svg{width:16px;height:16px;flex-shrink:0}.header-nav{display:flex;align-items:center;gap:8px}.header-nav-btn{display:flex;align-items:center;gap:8px;padding:8px 16px;background:var(--color-bg-surface);border:1px solid var(--color-border);border-radius:6px;color:var(--color-text-secondary);font-family:var(--font-sans);font-size:13px;font-weight:500;cursor:pointer;transition:all .2s}.header-nav-btn:hover:not(:disabled){background:var(--color-bg-hover);border-color:var(--color-border-hover);color:var(--color-text-primary)}.header-nav-btn.active{background:var(--color-accent);color:#fff;border-color:var(--color-accent)}.header-nav-btn:disabled{opacity:.5;cursor:not-allowed}.header-nav-icon{width:16px;height:16px;flex-shrink:0}.header-form{display:flex;align-items:center;gap:12px;flex:1;min-width:0;max-width:600px}.header-url-input{flex:1;background:var(--color-bg-surface);border:1px solid var(--color-border);color:var(--color-text-primary);padding:10px 16px;border-radius:6px;font-family:var(--font-sans);font-size:13px;min-width:0;transition:border-color .2s}.header-url-input:focus{outline:none;border-color:var(--color-accent);box-shadow:0 0 0 3px #2563eb1a}.header-url-input::placeholder{color:#aaa}.header-generate-btn{background:var(--color-accent);color:#fff;border:none;border-radius:6px;padding:10px 20px;font-family:var(--font-sans);font-size:13px;font-weight:600;cursor:pointer;transition:background .2s;white-space:nowrap;flex-shrink:0;position:relative}.header-generate-btn:hover:not(:disabled){background:var(--color-accent-hover)}.header-generate-btn:disabled{opacity:.5;cursor:not-allowed}.credit-cost-badge{display:inline-block;margin-left:8px;font-size:11px;font-weight:500;color:#fff;background:#fff3;padding:2px 6px;border-radius:4px;opacity:.8}.header-right{display:flex;align-items:center;gap:12px;flex-shrink:0;margin-left:auto}.header-user-info{display:flex;align-items:center;padding:0 12px}.header-user-email{font-size:13px;color:#ffffff80;font-family:var(--font-sans)}@media (max-width: 768px){.header-user-info{display:none}.header-logo-text{font-size:18px}.header-content{padding:0 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32px;line-height:1.6}.preview-cta-button{background:var(--color-accent);color:#fff;border:none;border-radius:6px;padding:14px 32px;font-family:var(--font-sans);font-size:14px;font-weight:600;cursor:pointer;transition:background .2s}.preview-cta-button:hover{background:var(--color-accent-hover)}.main-content{flex:1;padding:16px 20px;min-width:0;position:relative;width:100%;max-width:none;background:var(--color-bg-primary);border-radius:16px;margin:10px 10px 10px 0;overflow-y:auto;height:calc(100vh - 20px)}.main-content.main-content-full{border-radius:0;margin:0;padding:0;background:none;height:auto}.app-body-no-sidebar{background:var(--color-bg-secondary)}@media (max-width: 768px){.main-content{padding:24px 16px!important}.app-body{margin-left:0;margin-right:0}}.timeline-title{font-size:18px;font-weight:600;color:var(--color-text-primary);margin-bottom:24px;letter-spacing:-.01em}.form{width:100%}.input-group{display:flex;flex-direction:column;gap:12px}.url-input{width:100%;padding:12px 16px;border:1px solid var(--color-border);border-radius:8px;font-size:14px;font-family:var(--font-sans);transition:border-color .2s,box-shadow .2s;background:var(--color-bg-card);color:var(--color-text-primary)}.url-input:focus{outline:none;border-color:var(--color-accent);box-shadow:0 0 0 3px #2563eb1a}.url-input:disabled{background-color:var(--color-bg-surface);cursor:not-allowed;opacity:.5}.url-input::placeholder{color:#aaa}.section p{color:var(--color-text-secondary);line-height:1.6;font-size:15px}.submit-button{width:100%;padding:12px 24px;background:var(--color-accent);color:#fff;border:none;border-radius:8px;font-size:14px;font-weight:600;font-family:var(--font-sans);cursor:pointer;transition:background .2s,transform .1s}.submit-button:hover:not(:disabled){background:var(--color-accent-hover);transform:translateY(-1px)}.submit-button:disabled{opacity:.5;cursor:not-allowed;transform:none}.error-message{background-color:#fef2f2;color:#dc2626;padding:12px 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.sidebar-header{justify-content:center}.sidebar.collapsed .sidebar-logo{display:none}.sidebar-logo{display:flex;align-items:center;gap:10px;padding:8px 12px;background:none;border:none;cursor:pointer;transition:opacity .2s}.sidebar-logo:hover{opacity:.8}.sidebar-logo svg{flex-shrink:0}.sidebar-logo-text{font-family:Inter,-apple-system,sans-serif;font-size:16px;font-weight:700;color:#fff;letter-spacing:-.02em;white-space:nowrap}.sidebar-nav{flex:1;display:flex;flex-direction:column;gap:2px}.sidebar-nav-item{position:relative;display:flex;align-items:center;gap:12px;padding:10px 12px;background:none;border:none;border-radius:10px;color:#ffffff80;font-family:Inter,-apple-system,sans-serif;font-size:14px;font-weight:500;cursor:pointer;transition:all .2s ease;text-align:left;width:100%;white-space:nowrap}.sidebar-nav-item:hover{color:#fffc;background:#ffffff0f}.sidebar-nav-item.active{color:#fff;background:#ffffff1a}.sidebar.collapsed .sidebar-nav-item{justify-content:center;padding:10px}.sidebar.collapsed .sidebar-nav-item span{display:none}.sidebar.collapsed .sidebar-nav-item[title],.sidebar.collapsed .sidebar-user-trigger[title]{position:relative}.sidebar.collapsed .sidebar-nav-item[title]:after,.sidebar.collapsed .sidebar-user-trigger[title]:after{content:attr(title);position:absolute;left:calc(100% + 10px);top:50%;transform:translateY(-50%);padding:6px 12px;background:#1a1a1a;color:#fff;font-size:12px;font-weight:500;font-family:Inter,-apple-system,sans-serif;border-radius:6px;white-space:nowrap;pointer-events:none;opacity:0;transition:opacity .15s;z-index:1000;box-shadow:0 2px 8px #0000004d}.sidebar.collapsed .sidebar-nav-item[title]:hover:after,.sidebar.collapsed .sidebar-user-trigger[title]:hover:after{opacity:1}.sidebar-bottom{margin-top:auto;padding-top:12px;border-top:1px solid rgba(255,255,255,.06);display:flex;flex-direction:column;gap:2px}.sidebar-credits{padding:4px 4px 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.sidebar-user-chevron{transform:rotate(180deg)}.sidebar-user-menu{display:flex;flex-direction:column;gap:1px;padding-top:4px}.sidebar-action-btn{display:flex;align-items:center;gap:10px;padding:8px 12px;background:none;border:none;border-radius:8px;color:#fff6;font-family:Inter,-apple-system,sans-serif;font-size:13px;font-weight:500;cursor:pointer;transition:all .15s ease;text-align:left;width:100%}.sidebar-action-btn:hover{color:#ffffffb3;background:#ffffff0a}.sidebar-action-btn svg{flex-shrink:0;opacity:.6}.sidebar-action-btn.upgrade{color:#47aafdd9}.sidebar-action-btn.upgrade:hover{color:#47aafd;background:#47aafd14}.sidebar-action-btn.upgrade svg{opacity:1}.sidebar-collapse-btn{background:none;border:none;padding:8px;cursor:pointer;color:#ffffff40;border-radius:8px;transition:all .2s ease;display:flex;align-items:center;justify-content:center;flex-shrink:0}.sidebar-collapse-btn:hover{color:#fff9;background:#ffffff0f}.sidebar-mobile-toggle{display:none;position:fixed;top:16px;left:16px;z-index:250;background:#0a0a0a;border:1px solid rgba(255,255,255,.1);border-radius:10px;padding:8px;color:#fff;cursor:pointer;transition:background .2s ease}.sidebar-mobile-toggle:hover{background:#1a1a1a}.sidebar-backdrop{display:none}@media (max-width: 768px){.sidebar{position:fixed;top:0;left:-240px;height:100vh;z-index:300;transition:left .3s cubic-bezier(.32,.72,0,1);padding-top:16px;border-right:none}.sidebar.mobile-open{left:0}.sidebar.collapsed{width:220px;min-width:220px}.sidebar-mobile-toggle{display:flex;align-items:center;justify-content:center}.sidebar-backdrop{display:block;position:fixed;top:0;right:0;bottom:0;left:0;background:#00000073;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);z-index:299}.sidebar .sidebar-collapse-btn{display:none}}.payment-failed-banner{display:flex;align-items:center;gap:12px;padding:10px 20px;background:#ef44440f;border-bottom:1px solid rgba(239,68,68,.2);font-size:13px;color:#dc2626}.payment-failed-icon{font-size:16px;flex-shrink:0}.payment-failed-text{flex:1;line-height:1.4}.payment-failed-btn{flex-shrink:0;padding:6px 14px;background:#dc2626;color:#fff;border:none;border-radius:6px;font-size:12px;font-weight:600;cursor:pointer;transition:background .15s}.payment-failed-btn:hover{background:#b91c1c}.payment-failed-btn:disabled{opacity:.6;cursor:not-allowed}*{margin:0;padding:0;box-sizing:border-box}body{font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background:var(--color-bg-secondary);margin:0;padding:0;color:#1a1a1a}#root{width:100%;max-width:100%}