@import url('https://fonts.googleapis.com/css2?family=Caveat:wght@400;500;600;700&family=Inter:wght@400;500;600;700&display=swap');:root{--cs-bg-primary:#FFFFFF;--cs-bg-secondary:#F8F9FA;--cs-brand-blue:#2563EB;--cs-border-light:#E5E7EB;--cs-text-primary:#1F2937;--cs-text-heading:#111827;--cs-text-secondary:#4B5563;--cs-text-muted:#6B7280;--cs-footer-bg:#111827;--cs-footer-text:#9CA3AF;--cs-radius:8px;--cs-max-width:1200px;}body{font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif !important;font-size:16px !important;line-height:1.6 !important;color:#1F2937 !important;background:#F8F9FA !important;margin:0;padding:0;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;}.site-content,#content,.ast-container,.site,#page,.ast-separate-container{background:#F8F9FA !important;}.ast-container{width:100% !important;max-width:100% !important;padding:0 !important;margin:0 !important;}.cs-container{width:min(calc(100% - 32px),1200px) !important;margin-inline:auto !important;}@media (max-width:480px){.cs-container{width:min(calc(100% - 24px),1200px) !important;}}header.cs-header{position:sticky !important;top:0 !important;z-index:999 !important;width:100% !important;height:72px !important;background:#FFFFFF !important;border-bottom:1px solid #E5E7EB !important;box-sizing:border-box !important;margin:0 !important;padding:0 !important;}.admin-bar header.cs-header{top:32px !important;}@media screen and (max-width:782px){.admin-bar header.cs-header{top:46px !important;}}.cs-header-inner{width:min(calc(100% - 32px),1200px) !important;height:72px !important;margin:0 auto !important;display:flex !important;align-items:center !important;justify-content:space-between !important;gap:32px !important;box-sizing:border-box !important;}a.cs-brand{color:#111827 !important;font-family:'Inter',sans-serif !important;font-size:24px !important;font-weight:700 !important;line-height:1 !important;text-decoration:none !important;white-space:nowrap !important;background:transparent !important;border:none !important;}a.cs-brand:hover,a.cs-brand:focus-visible{color:#111827 !important;text-decoration:none !important;}nav.cs-desktop-nav{display:flex !important;align-items:center !important;gap:28px !important;margin:0 !important;padding:0 !important;}nav.cs-desktop-nav a.cs-nav-link{color:#4B5563 !important;font-family:'Inter',sans-serif !important;font-size:15px !important;font-weight:500 !important;text-decoration:none !important;padding:8px 0 !important;position:relative !important;transition:color 0.2s ease-in-out !important;background:transparent !important;line-height:1.4 !important;}nav.cs-desktop-nav a.cs-nav-link:hover,nav.cs-desktop-nav a.cs-nav-link:focus-visible{color:#2563EB !important;text-decoration:none !important;}nav.cs-desktop-nav a.cs-nav-link::after{content:"" !important;position:absolute !important;left:0 !important;bottom:2px !important;width:100% !important;height:1px !important;background:#2563EB !important;transform:scaleX(0) !important;transform-origin:left !important;transition:transform 0.2s ease-in-out !important;}nav.cs-desktop-nav a.cs-nav-link:hover::after,nav.cs-desktop-nav a.cs-nav-link:focus-visible::after{transform:scaleX(1) !important;}button.cs-menu-toggle{display:none;background:transparent !important;border:1px solid #E5E7EB !important;cursor:pointer !important;padding:8px !important;flex-direction:column !important;justify-content:center !important;align-items:center !important;gap:5px !important;width:40px !important;height:40px !important;border-radius:8px !important;box-sizing:border-box !important;margin:0 !important;}button.cs-menu-toggle span{display:block !important;width:20px !important;height:2px !important;background-color:#111827 !important;border-radius:1px !important;transition:all 0.2s ease-in-out !important;}button.cs-menu-toggle:hover{background-color:#F8F9FA !important;border-color:#D1D5DB !important;}button.cs-menu-toggle:hover span{background-color:#2563EB !important;}.cs-mobile-menu{display:none;background:#FFFFFF !important;border-top:1px solid #E5E7EB !important;border-bottom:1px solid #E5E7EB !important;width:100% !important;box-sizing:border-box !important;}.cs-mobile-menu.cs-open{display:block !important;}.cs-mobile-menu a.cs-mobile-link{display:block !important;padding:14px 20px !important;color:#1F2937 !important;font-family:'Inter',sans-serif !important;text-decoration:none !important;font-weight:500 !important;font-size:15px !important;border-left:3px solid transparent !important;transition:all 0.2s ease-in-out !important;background:#FFFFFF !important;}.cs-mobile-menu a.cs-mobile-link:hover,.cs-mobile-menu a.cs-mobile-link:focus-visible{color:#2563EB !important;background:#F8F9FA !important;border-left-color:#2563EB !important;text-decoration:none !important;}@media (max-width:767px){nav.cs-desktop-nav{display:none !important;}button.cs-menu-toggle{display:flex !important;}}.cs-main{width:100% !important;margin:0 !important;padding:0 !important;}.cs-hero{width:100% !important;background-color:#FFFFFF !important;padding:64px 16px 80px !important;text-align:center !important;border-bottom:1px solid #E5E7EB !important;box-sizing:border-box !important;}.cs-hero-inner{width:min(calc(100% - 32px),1200px) !important;margin:0 auto !important;}.cs-hero-title{font-family:'Inter',sans-serif !important;font-size:clamp(2rem,4vw,2.75rem) !important;font-weight:700 !important;line-height:1.2 !important;letter-spacing:-0.03em !important;color:#111827 !important;max-width:860px !important;margin:0 auto 16px auto !important;text-wrap:balance !important;}.cs-hero-subtitle{font-family:'Inter',sans-serif !important;font-size:clamp(1rem,1.8vw,1.15rem) !important;font-weight:400 !important;line-height:1.6 !important;color:#4B5563 !important;max-width:640px !important;margin:0 auto 40px auto !important;text-wrap:pretty !important;}@media (max-width:768px){.cs-hero{padding:40px 16px 56px !important;}.cs-hero-subtitle{margin-bottom:32px !important;}}footer.cs-footer{width:100% !important;background:#111827 !important;color:#9CA3AF !important;padding:60px 0 40px !important;border-top:1px solid #1F2937 !important;box-sizing:border-box !important;margin:0 !important;}.cs-footer-inner{width:min(calc(100% - 32px),1200px) !important;margin:0 auto !important;box-sizing:border-box !important;}.cs-footer-grid{display:grid !important;grid-template-columns:2fr 1fr 1fr 1fr !important;gap:48px !important;}.cs-footer h2{margin:0 0 16px !important;color:#FFFFFF !important;font-size:16px !important;line-height:1.4 !important;font-weight:600 !important;font-family:'Inter',sans-serif !important;letter-spacing:normal !important;text-transform:none !important;}.cs-footer-brand h2{font-size:20px !important;font-weight:700 !important;color:#FFFFFF !important;}.cs-footer p{margin:0 !important;max-width:420px !important;color:#9CA3AF !important;font-size:14px !important;line-height:1.6 !important;font-family:'Inter',sans-serif !important;}.cs-footer-trust{margin-top:16px !important;color:#6B7280 !important;font-size:12px !important;line-height:1.4 !important;font-family:'Inter',sans-serif !important;}.cs-footer ul{margin:0 !important;padding:0 !important;list-style:none !important;}.cs-footer li{margin:0 0 10px !important;padding:0 !important;list-style:none !important;}.cs-footer li::before,.cs-footer li::marker{display:none !important;content:none !important;}.cs-footer a{color:#9CA3AF !important;font-size:14px !important;text-decoration:none !important;font-family:'Inter',sans-serif !important;transition:color 0.2s ease-in-out !important;background:transparent !important;}.cs-footer a:hover,.cs-footer a:focus-visible{color:#FFFFFF !important;text-decoration:none !important;}.cs-footer-bottom{margin-top:48px !important;padding-top:20px !important;border-top:1px solid rgba(255,255,255,0.1) !important;color:#6B7280 !important;font-size:13px !important;text-align:center !important;font-family:'Inter',sans-serif !important;}@media (max-width:767px){.cs-footer-grid{grid-template-columns:1fr !important;gap:32px !important;}footer.cs-footer{padding:48px 0 32px !important;}.cs-footer-bottom{margin-top:32px !important;}}button.cs-menu-toggle,.cs-card,.calc-container{border-radius:var(--cs-radius) !important;}:focus-visible{outline:3px solid rgba(37,99,235,0.25) !important;outline-offset:2px !important;}section.cs-trust-banner{width:100% !important;margin-top:16px !important;background:var(--cs-bg-secondary,#F8F9FA) !important;border-top:1px solid var(--cs-border-light,#E5E7EB) !important;border-bottom:1px solid var(--cs-border-light,#E5E7EB) !important;box-sizing:border-box !important;}.cs-trust-inner{width:min(420px,92vw) !important;max-width:420px !important;margin:0 auto !important;padding:18px 20px !important;box-sizing:border-box !important;}.cs-trust-grid{display:flex !important;align-items:center !important;justify-content:space-between !important;gap:24px !important;flex-wrap:nowrap !important;}.cs-trust-item{display:flex !important;align-items:center !important;justify-content:flex-start !important;gap:8px !important;min-width:0 !important;flex:1 1 0 !important;}.cs-trust-icon{width:20px !important;height:20px !important;flex:0 0 20px !important;display:inline-flex !important;align-items:center !important;justify-content:center !important;color:var(--cs-brand-blue,#2563EB) !important;}.cs-trust-icon svg{width:20px !important;height:20px !important;display:block !important;stroke:var(--cs-brand-blue,#2563EB) !important;}.cs-trust-text{font-family:'Inter',sans-serif !important;font-size:14px !important;font-weight:700 !important;line-height:1.4 !important;color:var(--cs-text-primary,#1F2937) !important;white-space:normal !important;min-width:0 !important;}@media (max-width:767px){.cs-trust-grid{display:grid !important;grid-template-columns:repeat(2,minmax(0,1fr)) !important;gap:16px 12px !important;flex-wrap:unset !important;}.cs-trust-item{justify-content:flex-start !important;flex:unset !important;}}@media (max-width:400px){.cs-trust-inner{padding:16px 12px !important;}.cs-trust-grid{gap:14px 8px !important;}.cs-trust-item{gap:6px !important;}.cs-trust-text{font-size:13px !important;}.cs-trust-icon,.cs-trust-icon svg{width:18px !important;height:18px !important;flex-basis:18px !important;}}section.cs-scratch-section{width:100% !important;margin-top:24px !important;box-sizing:border-box !important;}.cs-scratch-inner{width:min(420px,92vw) !important;max-width:420px !important;margin:0 auto !important;box-sizing:border-box !important;}.cs-scratch-heading{font-family:'Inter',sans-serif !important;font-size:15px !important;font-weight:600 !important;color:var(--cs-text-primary,#1F2937) !important;margin:0 0 12px 0 !important;padding:0 !important;line-height:1.4 !important;letter-spacing:-0.01em !important;display:flex !important;align-items:center !important;gap:10px !important;}.cs-scratch-badge{display:inline-block !important;font-family:'Inter',sans-serif !important;font-size:10px !important;font-weight:600 !important;text-transform:uppercase !important;letter-spacing:0.05em !important;color:#92400E !important;background:#FEF3C7 !important;padding:2px 8px !important;border-radius:4px !important;line-height:1.4 !important;vertical-align:middle !important;}.cs-scratch-pad{position:relative !important;background:#FEF3C7 !important;border:1px solid #F3E8B0 !important;border-radius:var(--cs-radius,8px) !important;box-shadow:0 2px 8px rgba(0,0,0,0.04) !important;overflow:hidden !important;}.cs-scratch-textarea{display:block !important;width:100% !important;min-height:180px !important;max-height:400px !important;padding:16px 16px 48px 16px !important;margin:0 !important;border:none !important;outline:none !important;resize:vertical !important;box-sizing:border-box !important;background-color:#FEF3C7 !important;background-image:repeating-linear-gradient( to bottom,transparent 0px,transparent 27px,#E8D9A0 27px,#E8D9A0 28px ) !important;background-size:100% 28px !important;background-position:0 16px !important;font-family:'Caveat',cursive !important;font-size:20px !important;font-weight:500 !important;line-height:28px !important;color:#1F2937 !important;letter-spacing:0.01em !important;-webkit-appearance:none !important;-moz-appearance:none !important;appearance:none !important;}.cs-scratch-textarea::placeholder{color:#B4956A !important;font-family:'Caveat',cursive !important;font-size:20px !important;font-weight:400 !important;opacity:0.7 !important;}.cs-scratch-textarea:focus{outline:none !important;box-shadow:inset 0 0 0 2px rgba(37,99,235,0.15) !important;}.cs-scratch-clear{position:absolute !important;bottom:10px !important;right:12px !important;z-index:2 !important;font-family:'Inter',sans-serif !important;font-size:11px !important;font-weight:600 !important;color:#92400E !important;background:rgba(255,255,255,0.7) !important;border:1px solid #E8D9A0 !important;border-radius:4px !important;padding:4px 12px !important;cursor:pointer !important;transition:background 0.15s ease-in-out,color 0.15s ease-in-out !important;line-height:1.4 !important;-webkit-appearance:none !important;appearance:none !important;}.cs-scratch-clear:hover{background:#FFFFFF !important;color:#78350F !important;border-color:#D4C28A !important;}.cs-scratch-clear:active{background:#FDE68A !important;}@media (max-width:767px){section.cs-scratch-section{margin-top:20px !important;}.cs-scratch-textarea{min-height:150px !important;font-size:18px !important;line-height:28px !important;padding:14px 14px 44px 14px !important;}.cs-scratch-heading{font-size:14px !important;}}@media (max-width:400px){.cs-scratch-textarea{min-height:130px !important;font-size:17px !important;padding:12px 12px 42px 12px !important;}.cs-scratch-heading{font-size:13px !important;gap:8px !important;}.cs-scratch-badge{font-size:9px !important;padding:2px 6px !important;}.cs-scratch-clear{font-size:10px !important;padding:3px 10px !important;}}section.cs-topics-section{width:100%;padding:56px 16px 64px;background:var(--cs-bg-primary,#FFFFFF);box-sizing:border-box;}.cs-topics-inner{width:min(calc(100% - 32px),900px);max-width:900px;margin:0 auto;box-sizing:border-box;}.cs-topics-heading{font-family:'Inter',sans-serif;font-size:clamp(1.25rem,2.5vw,1.6rem);font-weight:700;color:var(--cs-text-heading,#111827);text-align:center;margin:0 0 32px 0;padding:0;line-height:1.3;letter-spacing:-0.02em;}.cs-topics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}a.cs-topic-card{display:flex;align-items:center;justify-content:center;text-align:center;min-height:120px;padding:24px 16px;border-radius:12px;text-decoration:none;cursor:pointer;box-shadow:0 4px 12px rgba(0,0,0,0.08);transition:transform 0.2s ease,box-shadow 0.2s ease;box-sizing:border-box;-webkit-tap-highlight-color:transparent;}a.cs-topic-card:hover{transform:translateY(-5px);box-shadow:0 8px 24px rgba(0,0,0,0.12);text-decoration:none;}a.cs-topic-card:active{transform:translateY(-2px);box-shadow:0 4px 12px rgba(0,0,0,0.1);}a.cs-topic-card:focus-visible{outline:3px solid rgba(37,99,235,0.5);outline-offset:3px;transform:translateY(-3px);}.cs-topic-label{font-family:'Inter',sans-serif;font-size:15px;font-weight:700;line-height:1.3;color:#FFFFFF;letter-spacing:-0.01em;}a.cs-topic-algebra{background-color:#DC4A4A;}a.cs-topic-fractions{background-color:#0D9488;}a.cs-topic-percentages{background-color:#4F46E5;}a.cs-topic-finance{background-color:#D97706;}@media (max-width:900px){.cs-topics-grid{grid-template-columns:repeat(2,1fr);gap:16px;}section.cs-topics-section{padding:40px 16px 48px;}.cs-topics-heading{margin-bottom:24px;}}@media (max-width:480px){.cs-topics-grid{gap:12px;}a.cs-topic-card{min-height:100px;padding:20px 12px;border-radius:10px;}.cs-topic-label{font-size:13px;}section.cs-topics-section{padding:32px 12px 40px;}.cs-topics-heading{margin-bottom:20px;}}