.calculator-workspace{margin-bottom:2rem;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--border-radius-xl);padding:2rem;box-shadow:var(--shadow-md);box-sizing:border-box;max-width:100%}.calc-card-header{margin-bottom:1.75rem}.calc-title-group{display:flex;align-items:flex-start;gap:1rem}.calc-icon-wrapper{background:var(--primary-light);color:var(--primary);padding:.75rem;border-radius:var(--border-radius-md);display:flex;align-items:center;justify-content:center;flex-shrink:0}.calc-title-row{display:flex;align-items:center;flex-wrap:wrap;gap:.75rem}.calc-title{font-size:1.6rem;font-weight:800;color:var(--text-main);letter-spacing:-.02em}.calc-subtitle{font-size:.95rem;color:var(--text-muted);margin-top:.25rem;line-height:1.5}.calc-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:2rem;align-items:start;min-width:0;max-width:100%}.calc-form-pane{display:flex;flex-direction:column;gap:1.25rem;min-width:0;max-width:100%;box-sizing:border-box}.calc-result-pane{display:flex;flex-direction:column;height:100%;min-width:0;max-width:100%;box-sizing:border-box}.calc-formula-pane{margin-top:1.5rem}.calc-footer-pane{margin-top:.5rem}@media (max-width: 860px){.calculator-workspace{padding:1.25rem 1rem}.calc-grid{grid-template-columns:1fr;gap:1.25rem}.calc-title{font-size:1.35rem}}@media (max-width: 600px){.calculator-workspace{padding:1rem .75rem;border-radius:var(--border-radius-md, 12px)}.calc-card-header{margin-bottom:1.25rem}.calc-title-group{gap:.65rem}.calc-icon-wrapper{padding:.5rem}.calc-title{font-size:1.2rem;line-height:1.3}.calc-subtitle{font-size:.85rem;line-height:1.5}}@media (max-width: 420px){.calculator-workspace{padding:.85rem .55rem}}.calculator-input-field{display:flex;flex-direction:column;gap:.35rem;width:100%}.calc-input-label{font-size:.9rem;font-weight:600;color:var(--text-main);display:flex;align-items:center;gap:.25rem}.req-dot{color:var(--accent-rose);font-weight:700}.calc-input-box{position:relative;display:flex;align-items:center;width:100%}.calc-native-input{width:100%;height:48px;padding:0 1rem;font-size:1.15rem;font-weight:600;font-family:inherit;color:var(--text-main);background-color:var(--bg-input);border:1.5px solid var(--border-color);border-radius:var(--border-radius-md);transition:all var(--transition-fast)}.calc-native-input::-webkit-outer-spin-button,.calc-native-input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.calc-native-input[type=number]{-moz-appearance:textfield}.calc-native-input:hover{border-color:var(--text-subtle)}.calc-native-input:focus{border-color:var(--primary);box-shadow:var(--shadow-focus)}.calc-native-input.with-prefix{padding-left:2.25rem}.calc-native-input.with-suffix{padding-right:3.25rem}.input-affix{position:absolute;font-weight:700;font-size:1rem;color:var(--text-muted);pointer-events:none;-webkit-user-select:none;user-select:none}.prefix-tag{left:.85rem}.suffix-tag{right:.85rem}.btn-clear-value{position:absolute;right:2.25rem;background:var(--bg-hover);border:none;color:var(--text-muted);width:22px;height:22px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--transition-fast)}.btn-clear-value:hover{background:var(--accent-rose-light);color:var(--accent-rose)}.calculator-input-field.has-error .calc-native-input{border-color:var(--accent-rose);background-color:var(--accent-rose-light)}.calc-input-error{display:flex;align-items:center;gap:.35rem;font-size:.825rem;color:var(--accent-rose);font-weight:500}.calc-input-help{font-size:.8rem;color:var(--text-muted)}.calculator-result-box{border-radius:var(--border-radius-lg);padding:1.5rem;transition:all var(--transition-normal)}.calculator-result-box.active-box{background:linear-gradient(135deg,var(--primary-light) 0%,var(--bg-card-subtle) 100%);border:1.5px solid var(--primary-border);box-shadow:var(--shadow-md)}.result-top-bar{display:flex;align-items:center;justify-content:space-between;margin-bottom:.4rem}.result-title-label{font-size:.825rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--primary)}.btn-copy-result{display:inline-flex;align-items:center;gap:.3rem;padding:.35rem .65rem;font-size:.8rem;font-weight:600;border-radius:var(--border-radius-sm);background:var(--bg-card);color:var(--text-main);border:1px solid var(--border-color);cursor:pointer;transition:all var(--transition-fast)}.btn-copy-result:hover{border-color:var(--primary);color:var(--primary)}.btn-copy-result.copied{background:var(--accent-green-light);color:var(--accent-green);border-color:var(--accent-green-border)}.result-number-container{display:flex;align-items:baseline;gap:.4rem;margin:.3rem 0 .65rem}.result-main-value{font-size:2.35rem;font-weight:800;color:var(--text-main);letter-spacing:-.03em;line-height:1.1}.result-unit-tag{font-size:1.15rem;font-weight:700;color:var(--text-muted)}.result-explanation-text{font-size:.925rem;color:var(--text-main);font-weight:500;line-height:1.5;margin-bottom:.75rem}.result-stats-row{display:flex;flex-wrap:wrap;gap:.5rem;margin-top:.75rem;padding-top:.75rem;border-top:1px dashed var(--primary-border)}.result-stat-chip{background:var(--bg-card);padding:.3rem .65rem;border-radius:var(--border-radius-sm);border:1px solid var(--border-color);font-size:.825rem;display:flex;align-items:center;gap:.35rem}.stat-name{color:var(--text-muted)}.stat-data{color:var(--text-main);font-weight:700}.result-steps-section{margin-top:1rem;padding-top:.85rem;border-top:1px solid var(--border-color)}.steps-header{display:flex;align-items:center;gap:.4rem;font-size:.8rem;font-weight:700;text-transform:uppercase;color:var(--text-muted);margin-bottom:.4rem}.steps-icon{color:var(--primary)}.steps-ordered-list{padding-left:1.25rem;display:flex;flex-direction:column;gap:.35rem}.step-point{font-size:.875rem;color:var(--text-main);line-height:1.45}.calculator-result-box.empty-box{background:var(--bg-card-subtle);border:1.5px dashed var(--border-color);text-align:center;padding:2.25rem 1.25rem;display:flex;flex-direction:column;align-items:center;justify-content:center}.empty-sparkle{color:var(--text-subtle);margin-bottom:.5rem}.empty-heading{font-size:1rem;font-weight:700;color:var(--text-main);margin-bottom:.25rem}.empty-subtext{font-size:.85rem;color:var(--text-muted);max-width:280px}.calculator-result-box.error-box{background:var(--accent-rose-light);border:1.5px solid var(--accent-rose-border)}.box-title{color:var(--accent-rose);font-size:.95rem;font-weight:700;margin-bottom:.25rem}.box-desc{color:var(--accent-rose);font-size:.85rem}.action-toolbar{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:.75rem;margin-top:1.25rem;padding-top:1rem;border-top:1px solid var(--border-color);width:100%;box-sizing:border-box}.action-toolbar-buttons{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap}.action-toolbar-decimals{display:flex;align-items:center;gap:.5rem;font-size:.85rem;color:var(--text-muted);max-width:100%;box-sizing:border-box}.action-toolbar-label{display:inline-flex;align-items:center;gap:.35rem;white-space:nowrap}.action-toolbar-select{padding:.35rem .6rem;border-radius:var(--border-radius-sm);border:1px solid var(--border-color);background-color:var(--bg-input);color:var(--text-main);font-weight:600;font-size:.85rem;cursor:pointer;max-width:100%;box-sizing:border-box;text-overflow:ellipsis}@media (max-width: 600px){.action-toolbar{flex-direction:column;align-items:stretch;gap:.75rem}.action-toolbar-buttons{display:grid;grid-template-columns:1fr 1fr;width:100%;gap:.5rem}.action-toolbar-buttons .btn{width:100%;justify-content:center;padding:.5rem .75rem}.action-toolbar-decimals{width:100%;display:flex;align-items:center;justify-content:space-between;gap:.5rem}.action-toolbar-select{flex:1;min-width:0;max-width:calc(100% - 150px)}}@media (max-width: 420px){.action-toolbar-decimals{flex-direction:column;align-items:flex-start;gap:.35rem}.action-toolbar-select{width:100%;max-width:100%}}.calc-mode-toolbar{display:flex;flex-wrap:wrap;gap:.75rem;align-items:center;justify-content:space-between;width:100%;box-sizing:border-box}.calc-mode-tabs{display:flex;flex-wrap:wrap;gap:.35rem;background:var(--bg-card-subtle, #f5f7fa);padding:.35rem;border-radius:var(--border-radius-md, 10px);border:1px solid var(--border-color, #e0e4ec);flex:1;min-width:0;box-sizing:border-box}.calc-mode-btn{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;padding:.45rem .85rem;font-size:.85rem;font-weight:600;border-radius:6px;border:none;cursor:pointer;transition:all .15s ease;background:transparent;color:var(--text-secondary, #4b5563);text-align:center;box-sizing:border-box;flex:1 1 auto}.calc-mode-btn.active{background:var(--color-primary, #2563eb);color:#fff}.calc-currency-bar{display:inline-flex;align-items:center;gap:.25rem;border:1px solid var(--border-color, #e0e4ec);padding:.25rem;border-radius:8px;background:var(--bg-card, #ffffff);flex-shrink:0;box-sizing:border-box}.calc-currency-btn{padding:.35rem .65rem;font-size:.82rem;font-weight:700;border-radius:6px;border:none;cursor:pointer;background:transparent;color:var(--text-secondary, #4b5563);transition:all .15s ease}.calc-currency-btn.active{background:var(--color-primary, #2563eb);color:#fff}.calc-callout-box{font-size:.88rem;color:var(--text-secondary, #4b5563);background:var(--bg-card-subtle, #f8fafc);padding:.65rem .85rem;border-radius:8px;border-left:3px solid var(--color-primary, #2563eb);width:100%;box-sizing:border-box;overflow-wrap:anywhere;word-break:break-word;line-height:1.55}.calc-callout-box code{font-family:inherit;font-weight:700;color:var(--primary, #2563eb);background:#2563eb14;padding:.15rem .35rem;border-radius:4px;white-space:normal;overflow-wrap:anywhere;word-break:break-word;display:inline}.calc-inputs-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;width:100%;box-sizing:border-box}.calc-presets-row{display:flex;gap:.35rem;flex-wrap:wrap;margin-top:.45rem;width:100%;box-sizing:border-box}@media (max-width: 600px){.calc-mode-toolbar{flex-direction:column;align-items:stretch;gap:.65rem}.calc-mode-tabs{width:100%;display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:.35rem}.calc-mode-btn{width:100%;padding:.45rem .4rem;font-size:.78rem;white-space:normal;text-align:center}.calc-currency-bar{align-self:flex-start}.calc-callout-box{padding:.55rem .75rem;font-size:.82rem}.calc-inputs-grid{grid-template-columns:1fr;gap:.85rem}}.site-header-sticky{position:sticky;top:0;z-index:50;background-color:var(--bg-card);border-bottom:1px solid var(--border-color);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);transition:background-color var(--transition-fast),border-color var(--transition-fast)}.header-wrapper{max-width:var(--max-content-width);margin:0 auto;padding:0 1.25rem;height:68px;display:flex;align-items:center;justify-content:space-between}.header-brand-logo{display:flex;align-items:center;gap:.7rem;text-decoration:none;color:var(--text-main);outline-offset:4px}.header-brand-logo:hover{text-decoration:none}.brand-icon-box{background:var(--primary);color:#fff;width:36px;height:36px;border-radius:var(--border-radius-sm);display:flex;align-items:center;justify-content:center;box-shadow:0 2px 6px #2563eb40;flex-shrink:0}.brand-icon-box.small{width:28px;height:28px}.brand-text-block{display:flex;flex-direction:column}.brand-title-text{font-size:1.15rem;font-weight:600;letter-spacing:-.02em;color:var(--text-main);line-height:1.2}.brand-title-text strong{color:var(--primary);font-weight:800}.brand-subtitle-text{font-size:.725rem;color:var(--text-muted);font-weight:500}.header-desktop-nav{display:flex;align-items:center;gap:.35rem}.nav-item-link{display:flex;align-items:center;gap:.4rem;padding:.45rem .8rem;border-radius:var(--border-radius-sm);font-size:.9rem;font-weight:600;color:var(--text-muted);text-decoration:none;transition:all var(--transition-fast)}.nav-item-link:hover{color:var(--text-main);background-color:var(--bg-hover);text-decoration:none}.nav-item-link.active{color:var(--primary);background-color:var(--primary-light)}.nav-dropdown-wrapper{position:relative}.nav-dropdown-trigger{display:flex;align-items:center;gap:.35rem;padding:.45rem .8rem;border-radius:var(--border-radius-sm);font-size:.9rem;font-weight:600;font-family:inherit;color:var(--text-muted);background:transparent;border:1px solid transparent;cursor:pointer;transition:all var(--transition-fast)}.nav-dropdown-trigger:hover,.nav-dropdown-trigger.open{color:var(--text-main);background-color:var(--bg-hover)}.dropdown-chevron{transition:transform var(--transition-fast)}.dropdown-chevron.rotate{transform:rotate(180deg)}.desktop-dropdown-card{position:absolute;top:calc(100% + 8px);right:0;width:480px;max-height:80vh;overflow-y:auto;background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--border-radius-lg);box-shadow:var(--shadow-xl);padding:.75rem;z-index:60}.dropdown-grid{display:grid;grid-template-columns:1fr 1fr;gap:.4rem}.dropdown-menu-item{display:flex;align-items:flex-start;gap:.65rem;padding:.6rem .75rem;border-radius:var(--border-radius-md);text-decoration:none;transition:background-color var(--transition-fast)}.dropdown-menu-item:hover{background-color:var(--bg-hover);text-decoration:none}.menu-item-icon-box{background:var(--primary-light);color:var(--primary);padding:.35rem;border-radius:var(--border-radius-sm);display:flex;align-items:center;justify-content:center;flex-shrink:0;margin-top:.1rem}.menu-item-text{display:flex;flex-direction:column}.menu-item-name{font-size:.85rem;font-weight:700;color:var(--text-main);line-height:1.25}.menu-item-desc{font-size:.725rem;color:var(--text-muted);line-height:1.35;margin-top:.15rem}.header-right-actions{display:flex;align-items:center;gap:.5rem}.theme-switch-btn{width:38px;height:38px;border-radius:var(--border-radius-sm);background:var(--bg-card-subtle);border:1px solid var(--border-color);color:var(--text-muted);display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all var(--transition-fast)}.theme-switch-btn:hover{background:var(--bg-hover);color:var(--text-main);border-color:var(--border-focus)}.theme-sun-icon{color:var(--accent-amber)}.theme-moon-icon{color:var(--accent-purple)}.hamburger-menu-btn{display:none;width:42px;height:42px;border-radius:var(--border-radius-sm);background:var(--bg-card-subtle);border:1px solid var(--border-color);color:var(--text-main);cursor:pointer;align-items:center;justify-content:center;transition:all var(--transition-fast)}.hamburger-menu-btn:hover{background:var(--bg-hover);border-color:var(--border-focus)}.mobile-drawer-overlay{position:fixed;top:0;left:0;right:0;bottom:0;width:100vw;height:100vh;height:100dvh;background-color:#0000008c;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);z-index:99999;display:flex;justify-content:flex-end;pointer-events:auto;animation:mobileOverlayFadeIn .2s ease-out}.mobile-drawer-content{width:85%;max-width:320px;height:100%;height:100dvh;background:var(--bg-card);border-left:1px solid var(--border-color);box-shadow:-4px 0 24px #0003;display:flex;flex-direction:column;overflow-y:auto;-webkit-overflow-scrolling:touch;padding:1.25rem;pointer-events:auto;animation:mobileDrawerSlideIn .25s cubic-bezier(.16,1,.3,1)}@keyframes mobileOverlayFadeIn{0%{opacity:0}to{opacity:1}}@keyframes mobileDrawerSlideIn{0%{transform:translate(100%)}to{transform:translate(0)}}.mobile-drawer-header{display:flex;align-items:center;justify-content:space-between;padding-bottom:1rem;border-bottom:1px solid var(--border-color);margin-bottom:1rem}.mobile-drawer-logo{display:flex;align-items:center;gap:.5rem;font-size:1.05rem;color:var(--text-main)}.mobile-drawer-logo strong{color:var(--primary)}.close-drawer-btn{background:transparent;border:none;color:var(--text-muted);cursor:pointer;padding:.35rem;border-radius:var(--border-radius-sm);display:flex;align-items:center;justify-content:center}.close-drawer-btn:hover{background:var(--bg-hover);color:var(--text-main)}.mobile-nav-links{display:flex;flex-direction:column;gap:.35rem}.mobile-nav-link{display:flex;align-items:center;gap:.75rem;padding:.65rem .85rem;border-radius:var(--border-radius-md);font-size:.95rem;font-weight:600;color:var(--text-muted);text-decoration:none;transition:all var(--transition-fast)}.mobile-nav-link:hover,.mobile-nav-link.active{color:var(--primary);background-color:var(--primary-light);text-decoration:none}.mobile-submenu-group{margin-top:.35rem;background:var(--bg-card-subtle);border-radius:var(--border-radius-md);border:1px solid var(--border-color);overflow:hidden}.mobile-submenu-toggle{width:100%;padding:.75rem .85rem;background:transparent;border:none;display:flex;align-items:center;justify-content:space-between;cursor:pointer;color:var(--text-main);font-size:.9rem;font-weight:700;font-family:inherit}.submenu-arrow{transition:transform var(--transition-fast);color:var(--text-muted)}.submenu-arrow.rotate{transform:rotate(180deg)}.mobile-submenu-items{display:flex;flex-direction:column;padding:.35rem .5rem .65rem;gap:.25rem;border-top:1px solid var(--border-color)}.mobile-sub-link{display:flex;align-items:center;gap:.6rem;padding:.5rem .75rem;border-radius:var(--border-radius-sm);font-size:.875rem;font-weight:600;color:var(--text-muted);text-decoration:none}.mobile-sub-link:hover,.mobile-sub-link.active{color:var(--primary);background-color:var(--bg-card);text-decoration:none}.mobile-drawer-divider{height:1px;background-color:var(--border-color);margin:.75rem 0}@media (max-width: 960px){.header-desktop-nav{display:none}.hamburger-menu-btn{display:flex}}.site-footer{background-color:var(--bg-card);border-top:1px solid var(--border-color);padding:4rem 1.5rem 2rem;margin-top:auto;transition:background-color var(--transition-fast),border-color var(--transition-fast)}.footer-container{max-width:var(--max-content-width);margin:0 auto}.footer-grid{display:grid;grid-template-columns:2fr 1.2fr 1.2fr 1fr;gap:2.5rem;margin-bottom:3.5rem}.footer-brand{display:flex;align-items:center;gap:.65rem;margin-bottom:1rem}.footer-logo-wrap{background:var(--primary);color:#fff;padding:.4rem;border-radius:var(--border-radius-sm);display:flex;align-items:center;justify-content:center}.footer-brand-title{font-size:1.25rem;font-weight:600;color:var(--text-main)}.footer-brand-title strong{color:var(--primary)}.footer-desc{font-size:.9rem;line-height:1.6;margin-bottom:1.25rem;max-width:380px}.footer-badge-tag{display:inline-block;font-size:.8rem;font-weight:600;color:var(--primary);background:var(--primary-light);padding:.35rem .75rem;border-radius:999px;border:1px solid var(--primary-border)}.footer-heading{font-size:1rem;font-weight:700;color:var(--text-main);margin-bottom:1.2rem;text-transform:uppercase;letter-spacing:.04em}.footer-links{list-style:none;display:flex;flex-direction:column;gap:.65rem}.footer-links a{font-size:.9rem;color:var(--text-muted);text-decoration:none;display:inline-flex;align-items:center;gap:.4rem;transition:color var(--transition-fast)}.footer-links a:hover{color:var(--primary);text-decoration:none;transform:translate(2px)}.inline-icon{opacity:.7}.footer-compliance-notice{padding:1rem 1.25rem;margin-bottom:2rem;background:var(--bg-subtle, #f8fafc);border:1px solid var(--border-color, #e2e8f0);border-radius:var(--border-radius-md, 10px);font-size:.8rem;line-height:1.6;color:var(--text-muted, #64748b)}.footer-compliance-notice strong{color:var(--text-main, #0f172a)}.footer-bottom{padding-top:1.75rem;border-top:1px solid var(--border-color);display:flex;justify-content:space-between;align-items:center;font-size:.85rem;color:var(--text-subtle);flex-wrap:wrap;gap:1rem}.footer-bottom-links{display:flex;align-items:center;gap:.75rem}@media (max-width: 900px){.footer-grid{grid-template-columns:1fr 1fr}.brand-col{grid-column:span 2}}@media (max-width: 600px){.footer-grid{grid-template-columns:1fr}.brand-col{grid-column:span 1}.footer-bottom{flex-direction:column;align-items:flex-start}}.faq-section{margin-top:2.5rem}.faq-header{margin-bottom:1.5rem}.faq-title-row{display:flex;align-items:center;gap:.5rem}.faq-icon{color:var(--primary)}.faq-title{font-size:1.35rem;font-weight:700;color:var(--text-main)}.faq-subtitle{font-size:.9rem;color:var(--text-muted);margin-top:.25rem}.faq-accordion-list{display:flex;flex-direction:column;gap:.75rem}.faq-accordion-item{border:1px solid var(--border-color);border-radius:var(--border-radius-md);overflow:hidden;transition:border-color var(--transition-fast)}.faq-accordion-item.open{border-color:var(--border-focus)}.faq-question-btn{width:100%;padding:1rem 1.25rem;background:var(--bg-card);border:none;display:flex;align-items:center;justify-content:space-between;gap:1rem;text-align:left;cursor:pointer;color:var(--text-main);font-family:inherit;font-size:.95rem;font-weight:600;transition:background-color var(--transition-fast)}.faq-question-btn:hover,.faq-accordion-item.open .faq-question-btn{background-color:var(--bg-card-subtle)}.faq-question-text{flex:1}.faq-answer-pane{padding:1rem 1.25rem;background-color:var(--bg-card);font-size:.9rem;color:var(--text-muted);line-height:1.6;border-top:1px solid var(--border-color)}.gpg-section{padding:4.5rem 0;background:var(--bg-card, #ffffff);border-top:1px solid var(--border-color, #e2e8f0);border-bottom:1px solid var(--border-color, #e2e8f0)}.gpg-container{max-width:1040px;margin:0 auto;padding:0 1.5rem}.gpg-header{text-align:center;margin-bottom:3rem}.gpg-badge{display:inline-flex;align-items:center;gap:.4rem;padding:.35rem .85rem;background:var(--primary-light, #eff6ff);color:var(--primary, #2563eb);font-size:.825rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;border-radius:9999px;margin-bottom:1rem}.gpg-main-title{font-size:clamp(1.85rem,3.5vw,2.45rem);font-weight:800;color:var(--text-main, #0f172a);line-height:1.25;margin-bottom:1.25rem}.gpg-intro-lead{font-size:1.1rem;line-height:1.75;color:var(--text-muted, #475569);max-width:860px;margin:0 auto 1rem}.gpg-article-content{display:flex;flex-direction:column;gap:2.75rem;font-size:1rem;line-height:1.75;color:var(--text-main, #1e293b)}.gpg-block{background:var(--bg-main, #f8fafc);border:1px solid var(--border-color, #e2e8f0);border-radius:var(--border-radius-lg, 14px);padding:2rem 2.25rem;transition:box-shadow var(--transition-fast, .2s)}.gpg-block:hover{box-shadow:var(--shadow-md, 0 4px 12px rgba(0, 0, 0, .05))}.gpg-block-title{font-size:1.45rem;font-weight:700;color:var(--text-main, #0f172a);margin-bottom:1rem;display:flex;align-items:center;gap:.65rem}.gpg-block-subtitle{font-size:1.15rem;font-weight:700;color:var(--text-main, #1e293b);margin-top:1.25rem;margin-bottom:.5rem}.gpg-formula-box{background:var(--primary-light, #eff6ff);border-left:4px solid var(--primary, #2563eb);padding:1rem 1.25rem;margin:1.25rem 0;border-radius:0 var(--border-radius-md, 8px) var(--border-radius-md, 8px) 0;font-family:JetBrains Mono,monospace;font-size:1.05rem;font-weight:700;color:var(--primary, #1e40af)}.gpg-example-card{background:var(--bg-card, #ffffff);border:1px solid var(--border-color, #e2e8f0);border-radius:var(--border-radius-md, 8px);padding:1.15rem 1.35rem;margin:1rem 0}.gpg-example-title{font-weight:700;color:var(--primary, #2563eb);margin-bottom:.4rem;display:flex;align-items:center;gap:.4rem}.gpg-steps-list{padding-left:1.5rem;margin:.75rem 0}.gpg-steps-list li{margin-bottom:.4rem}.gpg-calc-link-btn{display:inline-flex;align-items:center;gap:.4rem;margin-top:.85rem;padding:.5rem 1rem;background:var(--primary, #2563eb);color:#fff;font-size:.85rem;font-weight:600;border-radius:var(--border-radius-md, 8px);text-decoration:none;transition:all var(--transition-fast, .2s)}.gpg-calc-link-btn:hover{background:var(--primary-hover, #1d4ed8);color:#fff;text-decoration:none;transform:translateY(-1px)}.gpg-alert-box{background:#fef2f2;border:1px solid #fecaca;border-left:4px solid #ef4444;border-radius:var(--border-radius-md, 8px);padding:1rem 1.25rem;margin:1.25rem 0;color:#991b1b}.gpg-alert-title{font-weight:700;margin-bottom:.35rem;display:flex;align-items:center;gap:.45rem}.gpg-table-wrapper{overflow-x:auto;margin:1.5rem 0;border-radius:var(--border-radius-md, 8px);border:1px solid var(--border-color, #e2e8f0)}.gpg-table{width:100%;border-collapse:collapse;text-align:left;font-size:.95rem}.gpg-table th{background:var(--bg-hover, #f1f5f9);padding:.85rem 1.15rem;font-weight:700;color:var(--text-main, #0f172a);border-bottom:2px solid var(--border-color, #e2e8f0)}.gpg-table td{padding:.85rem 1.15rem;border-bottom:1px solid var(--border-color, #e2e8f0)}.gpg-table tr:last-child td{border-bottom:none}.gpg-table code{background:var(--primary-light, #eff6ff);color:var(--primary, #1e40af);padding:.2rem .45rem;border-radius:4px;font-family:JetBrains Mono,monospace;font-size:.9rem}.gpg-checklist{list-style:none;padding:0;display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:.65rem;margin:1.25rem 0}.gpg-checklist li{display:flex;align-items:center;gap:.5rem;background:var(--bg-card, #ffffff);padding:.65rem .85rem;border-radius:var(--border-radius-sm, 6px);border:1px solid var(--border-color, #e2e8f0);font-weight:500}@media (max-width: 768px){.gpg-block{padding:1.5rem 1.25rem}}.hp{display:flex;flex-direction:column;width:100%}.hp-container{width:100%;max-width:1100px;margin:0 auto;padding:0 1.25rem;box-sizing:border-box}@media (max-width: 768px){.hp-container{padding:0 .65rem}}@media (max-width: 480px){.hp-container{padding:0 .45rem}}.hp-section{padding:4rem 0}@media (max-width: 768px){.hp-section{padding:2.25rem 0}}.hp-section--alt{background:var(--bg-subtle, #f8fafc)}.hp-section-header{max-width:640px;margin-bottom:2.5rem}.hp-section-title{font-size:clamp(1.5rem,4vw,2rem);font-weight:800;color:var(--text-main, #0f172a);letter-spacing:-.025em;line-height:1.2;margin:0 0 .5rem}.hp-section-sub{font-size:1rem;color:var(--text-muted, #64748b);line-height:1.65;margin:0}.hp-hero{background:linear-gradient(160deg,#0f172a,#1e3a5f 55%,#1e3a5f);color:#fff;padding:4.5rem 1.25rem 3.5rem;text-align:center}.hp-hero__inner{max-width:700px;margin:0 auto;display:flex;flex-direction:column;align-items:center;gap:1.25rem}.hp-hero__eyebrow{display:inline-flex;align-items:center;gap:.4rem;font-size:.78rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:#93c5fd;background:#93c5fd1f;border:1px solid rgba(147,197,253,.25);padding:.35rem .85rem;border-radius:999px}.hp-hero__title{font-size:clamp(2.4rem,8vw,4rem);font-weight:900;line-height:1.1;letter-spacing:-.04em;margin:0;color:#fff}.hp-hero__sub{font-size:clamp(1rem,3vw,1.2rem);color:#bfdbfe;line-height:1.65;margin:0}.hp-hero__br{display:none}@media (min-width: 600px){.hp-hero__br{display:block}}.hp-hero__badges{display:flex;flex-wrap:wrap;justify-content:center;gap:.5rem;margin-top:.5rem}.hp-chip{display:inline-flex;align-items:center;gap:.35rem;font-size:.78rem;font-weight:600;color:#bfdbfe;background:#ffffff14;border:1px solid rgba(255,255,255,.15);padding:.3rem .75rem;border-radius:999px}.hp-calculator-section{padding-top:0;margin-top:-2.5rem;position:relative;z-index:10}.hp-calc-card{background:var(--bg-card, #fff);border-radius:18px;box-shadow:0 4px 32px #0f172a1a,0 1px 4px #0f172a0f;border:1px solid var(--border-color, #e2e8f0);overflow:hidden}.hp-calc-tabs{display:flex;background:var(--bg-subtle, #f8fafc);border-bottom:1px solid var(--border-color, #e2e8f0);overflow-x:auto;scrollbar-width:none}.hp-calc-tabs::-webkit-scrollbar{display:none}.hp-calc-tab{flex:1 1 0;min-width:0;padding:.85rem 1rem;font-size:.88rem;font-weight:600;color:var(--text-muted, #64748b);background:transparent;border:none;border-bottom:3px solid transparent;cursor:pointer;white-space:nowrap;text-align:center;transition:color .15s ease,border-color .15s ease,background .15s ease;font-family:inherit}.hp-calc-tab:hover:not(.hp-calc-tab--active){color:var(--text-main, #0f172a);background:var(--bg-hover, #f1f5f9)}.hp-calc-tab--active{color:var(--primary, #2563eb);border-bottom-color:var(--primary, #2563eb);background:var(--bg-card, #fff)}.hp-tab-full{display:inline}.hp-tab-short{display:none}@media (max-width: 640px){.hp-tab-full{display:none}.hp-tab-short{display:inline}.hp-calc-tabs{display:flex;width:100%;overflow-x:hidden}.hp-calc-tab{flex:1 1 0;min-width:0;padding:.75rem .25rem;font-size:.8rem;font-weight:600;text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}}.hp-calc-question{padding:1.25rem 1.75rem .25rem;font-size:1.05rem;font-weight:600;color:var(--text-main, #0f172a);letter-spacing:-.01em}.hp-calc-inputs{display:grid;grid-template-columns:1fr 1fr;gap:1rem;padding:1rem 1.75rem 1.25rem}@media (max-width: 540px){.hp-calc-inputs{grid-template-columns:1fr;gap:.75rem;padding:1rem 1.25rem}.hp-calc-question{padding:1rem 1.25rem .25rem}}.hp-calc-result{border-top:1px solid var(--border-color, #e2e8f0);background:var(--bg-subtle, #f8fafc);padding:1.5rem 1.75rem;min-height:120px}@media (max-width: 540px){.hp-calc-result{padding:1.25rem}}.hp-calc-result__label{font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted, #64748b);margin-bottom:.35rem}.hp-calc-result__value{font-size:clamp(2rem,6vw,2.75rem);font-weight:900;color:var(--primary, #2563eb);letter-spacing:-.04em;line-height:1.05;margin-bottom:.6rem}.hp-calc-result__explanation{font-size:.875rem;color:var(--text-muted, #64748b);margin:.5rem 0 0;line-height:1.55}.hp-calc-result__steps{margin:.75rem 0 0;padding-left:1.2rem;display:flex;flex-direction:column;gap:.25rem}.hp-calc-result__steps li{font-size:.82rem;color:var(--text-muted, #64748b);line-height:1.5}.hp-calc-result__placeholder{font-size:.9rem;color:var(--text-muted, #64748b);margin:1rem 0 0;font-style:italic}.hp-calc-result__error{font-size:.875rem;color:var(--color-error, #dc2626);margin:0}.hp-calc-footer{padding:.85rem 1.75rem;border-top:1px solid var(--border-color, #e2e8f0);display:flex;justify-content:flex-end}.hp-calc-link{display:inline-flex;align-items:center;gap:.35rem;font-size:.82rem;font-weight:600;color:var(--primary, #2563eb);text-decoration:none;transition:gap .15s ease}.hp-calc-link:hover{gap:.55rem}.hp-popular-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:1rem}.hp-popular-card{display:flex;flex-direction:column;gap:.5rem;padding:1.25rem 1.25rem 1rem;background:var(--bg-card, #fff);border:2px solid var(--border-color, #e2e8f0);border-radius:14px;text-decoration:none;color:inherit;transition:border-color .15s ease,transform .15s ease,box-shadow .15s ease}.hp-popular-card:hover{transform:translateY(-3px);box-shadow:0 8px 24px #00000014;text-decoration:none}.hp-popular-card__top{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:.25rem}.hp-popular-card__icon-wrap{display:flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:10px;flex-shrink:0}.hp-popular-card--blue:hover{border-color:#2563eb}.hp-popular-card--green:hover{border-color:#16a34a}.hp-popular-card--red:hover{border-color:#dc2626}.hp-popular-card--purple:hover{border-color:#7c3aed}.hp-popular-card--orange:hover{border-color:#ea580c}.hp-popular-card--teal:hover{border-color:#0d9488}.hp-popular-card--indigo:hover{border-color:#4338ca}.hp-popular-card--rose:hover{border-color:#e11d48}.hp-popular-card--amber:hover{border-color:#d97706}.hp-popular-card--cyan:hover{border-color:#0891b2}.hp-popular-card--violet:hover{border-color:#7c3aed}.hp-popular-card--emerald:hover{border-color:#059669}.hp-popular-card__icon-wrap--blue{background:#eff6ff;color:#2563eb}.hp-popular-card__icon-wrap--green{background:#f0fdf4;color:#16a34a}.hp-popular-card__icon-wrap--red{background:#fef2f2;color:#dc2626}.hp-popular-card__icon-wrap--purple{background:#f5f3ff;color:#7c3aed}.hp-popular-card__icon-wrap--orange{background:#fff7ed;color:#ea580c}.hp-popular-card__icon-wrap--teal{background:#f0fdfa;color:#0d9488}.hp-popular-card__icon-wrap--indigo{background:#eef2ff;color:#4338ca}.hp-popular-card__icon-wrap--rose{background:#fff1f2;color:#e11d48}.hp-popular-card__icon-wrap--amber{background:#fffbeb;color:#d97706}.hp-popular-card__icon-wrap--cyan{background:#ecfeff;color:#0891b2}.hp-popular-card__icon-wrap--violet{background:#f5f3ff;color:#7c3aed}.hp-popular-card__icon-wrap--emerald{background:#ecfdf5;color:#059669}.hp-popular-card__badge{font-size:.68rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--text-muted, #64748b);background:var(--bg-subtle, #f8fafc);border:1px solid var(--border-color, #e2e8f0);padding:.2rem .55rem;border-radius:999px}.hp-popular-card__title{font-size:1rem;font-weight:700;color:var(--text-main, #0f172a);line-height:1.3}.hp-popular-card__desc{font-size:.85rem;color:var(--text-muted, #64748b);line-height:1.5;flex:1}.hp-popular-card__cta{display:flex;align-items:center;gap:.3rem;font-size:.8rem;font-weight:700;color:var(--primary, #2563eb);margin-top:.5rem;padding-top:.75rem;border-top:1px solid var(--border-color, #e2e8f0);transition:gap .15s ease}.hp-popular-card:hover .hp-popular-card__cta{gap:.55rem}.hp-tools-quick-nav{display:flex;flex-wrap:wrap;gap:.5rem;margin-bottom:2rem;padding:.5rem;background:var(--bg-card, #fff);border:1px solid var(--border-color, #e2e8f0);border-radius:var(--border-radius-lg, 12px);box-shadow:0 1px 3px #0000000a}.hp-quick-nav-pill{display:inline-flex;align-items:center;padding:.45rem .85rem;font-size:.825rem;font-weight:600;color:var(--text-muted, #64748b);background:var(--bg-subtle, #f8fafc);border:1px solid var(--border-color, #e2e8f0);border-radius:999px;text-decoration:none;transition:all .15s ease;white-space:nowrap}.hp-quick-nav-pill:hover{color:var(--primary, #2563eb);background:var(--primary-light, #eff6ff);border-color:var(--primary, #2563eb);transform:translateY(-1px)}.hp-open-tools-stack{display:flex;flex-direction:column;gap:2.25rem}.hp-open-tool-card{scroll-margin-top:5rem;position:relative}.hp-open-tool-formula-bar{display:flex;align-items:center;gap:.5rem;background:var(--bg-card, #fff);border:1px solid var(--border-color, #e2e8f0);border-bottom:none;border-radius:14px 14px 0 0;padding:.5rem 1.25rem;margin-bottom:-1px;font-size:.82rem}.hp-open-tool-formula-label{font-weight:700;text-transform:uppercase;font-size:.72rem;letter-spacing:.05em;color:var(--primary, #2563eb)}.hp-open-tool-formula-bar code{font-family:Fira Code,Courier New,monospace;font-size:.85rem;font-weight:600;color:var(--text-main, #0f172a)}.hp-open-tool-card .calculator-workspace{margin-bottom:0;border-top-left-radius:0;border-top-right-radius:0}@media (max-width: 600px){.hp-tools-quick-nav{gap:.35rem;padding:.35rem}.hp-quick-nav-pill{font-size:.75rem;padding:.35rem .65rem}.hp-open-tool-formula-bar{padding:.4rem .65rem;font-size:.75rem;flex-wrap:wrap;border-radius:12px 12px 0 0}.hp-open-tool-formula-bar code{font-size:.75rem;word-break:break-word;overflow-wrap:anywhere}}.hp-steps-grid{display:flex;flex-direction:column;gap:1rem}@media (min-width: 640px){.hp-steps-grid{flex-direction:row;gap:1.5rem}}.hp-step{display:flex;align-items:flex-start;gap:1rem;background:var(--bg-card, #fff);border:1px solid var(--border-color, #e2e8f0);border-radius:12px;padding:1.25rem;flex:1}.hp-step__num{display:flex;align-items:center;justify-content:center;width:36px;height:36px;min-width:36px;background:var(--primary, #2563eb);color:#fff;border-radius:50%;font-size:1rem;font-weight:800;flex-shrink:0}.hp-step strong{display:block;font-size:.95rem;font-weight:700;color:var(--text-main, #0f172a);margin-bottom:.35rem}.hp-step p{font-size:.875rem;color:var(--text-muted, #64748b);line-height:1.55;margin:0}.hp-formula-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.25rem}.hp-formula-card{background:var(--bg-card, #fff);border:1px solid var(--border-color, #e2e8f0);border-radius:14px;padding:1.5rem;display:flex;flex-direction:column;gap:.75rem}.hp-formula-card__label{font-size:.72rem;font-weight:800;text-transform:uppercase;letter-spacing:.08em;color:var(--primary, #2563eb)}.hp-formula-card__formula{font-family:Fira Code,Courier New,monospace;font-size:1.05rem;font-weight:700;color:var(--text-main, #0f172a);background:var(--bg-subtle, #f8fafc);border:1px solid var(--border-color, #e2e8f0);border-radius:8px;padding:.6rem .85rem;line-height:1.5}.hp-formula-card__formula em{color:var(--primary, #2563eb);font-style:normal}.hp-formula-card__desc{font-size:.875rem;color:var(--text-muted, #64748b);line-height:1.55;margin:0}.hp-formula-card__example{font-size:.82rem;color:var(--text-muted, #64748b);background:var(--bg-subtle, #f8fafc);border-left:3px solid var(--primary, #2563eb);padding:.5rem .75rem;border-radius:0 6px 6px 0;line-height:1.5}.hp-formula-card__example strong{color:var(--text-main, #0f172a)}.hp-examples-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.25rem}.hp-example-card{background:var(--bg-card, #fff);border:1px solid var(--border-color, #e2e8f0);border-radius:14px;padding:1.5rem;display:flex;flex-direction:column;gap:.75rem}.hp-example-label{display:inline-block;font-size:.7rem;font-weight:800;text-transform:uppercase;letter-spacing:.08em;padding:.25rem .6rem;border-radius:999px}.hp-example-label--purple{background:#f5f3ff;color:#7c3aed}.hp-example-label--green{background:#f0fdf4;color:#16a34a}.hp-example-label--blue{background:#eff6ff;color:#2563eb}.hp-example-title{font-size:1rem;font-weight:700;color:var(--text-main, #0f172a);margin:0}.hp-example-input{font-size:.85rem;color:var(--text-muted, #64748b);margin:0;line-height:1.5}.hp-example-steps{margin:0;padding-left:1.25rem;display:flex;flex-direction:column;gap:.35rem}.hp-example-steps li{font-size:.85rem;color:var(--text-main, #0f172a);line-height:1.5}.hp-example-result{font-size:.9rem;font-weight:700;padding:.6rem .85rem;border-radius:8px;margin-top:.25rem}.hp-example-result strong{font-size:1.1rem}.hp-example-result--purple{background:#f5f3ff;color:#7c3aed}.hp-example-result--green{background:#f0fdf4;color:#16a34a}.hp-example-result--blue{background:#eff6ff;color:#2563eb}.hp-table-wrap{overflow-x:auto;border-radius:12px;border:1px solid var(--border-color, #e2e8f0);box-shadow:0 1px 4px #0000000d}.hp-table{width:100%;border-collapse:collapse;background:var(--bg-card, #fff);font-size:.9rem}.hp-table th{background:var(--bg-subtle, #f8fafc);font-weight:700;font-size:.78rem;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted, #64748b);text-align:left;padding:.85rem 1.1rem;border-bottom:1px solid var(--border-color, #e2e8f0)}.hp-table td{padding:.8rem 1.1rem;color:var(--text-main, #0f172a);border-bottom:1px solid var(--border-color, #e2e8f0)}.hp-table tbody tr:last-child td{border-bottom:none}.hp-table tbody tr:hover{background:var(--bg-hover, #f1f5f9)}.hp-pct-badge{display:inline-block;font-size:.8rem;font-weight:700;color:var(--primary, #2563eb);background:#eff6ff;padding:.2rem .55rem;border-radius:999px}.hp-edu{display:grid;grid-template-columns:1fr;gap:2.5rem;align-items:start}@media (min-width: 768px){.hp-edu{grid-template-columns:1fr 360px}}.hp-edu__text{display:flex;flex-direction:column;gap:1rem}.hp-edu__eyebrow{display:inline-flex;align-items:center;gap:.4rem;font-size:.78rem;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--primary, #2563eb)}.hp-edu__text p{font-size:.95rem;color:var(--text-muted, #64748b);line-height:1.7;margin:0}.hp-edu__text h3{font-size:1.1rem;font-weight:700;color:var(--text-main, #0f172a);margin:.5rem 0 0}.hp-edu__list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:.5rem}.hp-edu__list li{display:flex;align-items:center;gap:.55rem;font-size:.9rem;color:var(--text-muted, #64748b);line-height:1.5}.hp-edu__list li svg{color:#16a34a;flex-shrink:0}.hp-tip-card{background:var(--bg-card, #fff);border:1px solid var(--border-color, #e2e8f0);border-radius:14px;padding:1.5rem;position:sticky;top:80px}.hp-tip-card__icon{display:flex;align-items:center;justify-content:center;width:44px;height:44px;background:#fffbeb;color:#d97706;border-radius:12px;margin-bottom:.75rem}.hp-tip-card__title{font-size:1rem;font-weight:700;color:var(--text-main, #0f172a);margin:0 0 1rem}.hp-tip-card__list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:.5rem}.hp-tip-card__list li{display:flex;align-items:center;gap:.6rem;font-size:.875rem;color:var(--text-muted, #64748b)}.hp-tip-badge{display:inline-flex;align-items:center;justify-content:center;min-width:42px;font-size:.75rem;font-weight:700;color:var(--primary, #2563eb);background:#eff6ff;padding:.2rem .45rem;border-radius:6px;flex-shrink:0}.hp-faq-wrap{max-width:780px}@media (prefers-color-scheme: dark){.hp-hero{background:linear-gradient(160deg,#030712,#0f2340)}.hp-calc-card{background:var(--bg-card);box-shadow:0 4px 32px #00000059}.hp-section--alt{background:var(--bg-card-subtle, #111827)}.hp-popular-card,.hp-grid-card,.hp-step,.hp-formula-card,.hp-example-card,.hp-tip-card{background:var(--bg-card);border-color:var(--border-color)}.hp-table{background:var(--bg-card)}.hp-table th{background:var(--bg-card-subtle)}.hp-pct-badge{background:#2563eb33}.hp-tip-badge{background:#2563eb26}.hp-example-label--purple{background:#7c3aed26}.hp-example-label--green{background:#16a34a26}.hp-example-label--blue{background:#2563eb26}.hp-example-result--purple{background:#7c3aed26}.hp-example-result--green{background:#16a34a26}.hp-example-result--blue{background:#2563eb26}}@media (max-width: 480px){.hp-section{padding:2.5rem 0}.hp-hero{padding:3rem 1rem 2.5rem}.hp-hero__title{font-size:2.2rem}.hp-popular-grid,.hp-formula-grid,.hp-examples-grid{grid-template-columns:1fr}}.contact-page-container{max-width:640px;margin:0 auto}.contact-card{background:var(--bg-card, #ffffff);border:1px solid var(--border-color, #e2e8f0);border-radius:var(--border-radius-lg, 12px);box-shadow:var(--shadow-sm, 0 1px 3px rgba(0, 0, 0, .05));padding:2rem}@media (max-width: 640px){.contact-card{padding:1.25rem 1rem}}.contact-header{display:flex;align-items:center;gap:.6rem;margin-bottom:.5rem}.contact-header-icon{color:var(--primary, #2563eb);flex-shrink:0}.contact-header h1{font-size:1.75rem;font-weight:800;margin:0;color:var(--text-main, #0f172a)}.contact-description{margin-bottom:1.75rem;color:var(--text-muted, #64748b);line-height:1.6}.contact-form{display:flex;flex-direction:column;gap:1.25rem}.contact-form-group{display:flex;flex-direction:column;gap:.35rem;width:100%}.contact-label{display:block;font-size:.9rem;font-weight:600;color:var(--text-main, #0f172a)}.contact-required{color:var(--accent-rose, #ef4444)}.contact-input,.contact-select,.contact-textarea{width:100%;box-sizing:border-box;font-family:inherit;font-size:.95rem;color:var(--text-main, #0f172a);background-color:var(--bg-input, #ffffff);border:1.5px solid var(--border-color, #e2e8f0);border-radius:var(--border-radius-md, 8px);padding:0 .85rem;transition:border-color .15s ease,box-shadow .15s ease}.contact-input,.contact-select{height:44px}.contact-textarea{min-height:130px;padding:.85rem;line-height:1.5;resize:vertical}.contact-input:hover,.contact-select:hover,.contact-textarea:hover{border-color:var(--text-subtle, #94a3b8)}.contact-input:focus,.contact-select:focus,.contact-textarea:focus{outline:none;border-color:var(--primary, #2563eb);box-shadow:0 0 0 3px #2563eb26}.contact-input::placeholder,.contact-textarea::placeholder{color:var(--text-muted, #94a3b8);opacity:.8}.contact-select{cursor:pointer;font-weight:500}.contact-error-banner{display:flex;align-items:center;gap:.5rem;color:var(--accent-rose, #ef4444);font-size:.9rem}.contact-submit-btn{width:100%;height:46px;display:inline-flex;align-items:center;justify-content:center;gap:.5rem;font-size:1rem;font-weight:600;border-radius:var(--border-radius-md, 8px);cursor:pointer}.blog-page-container{max-width:960px;margin:0 auto;padding:1.5rem 1rem 5rem}.single-blog-card{background:var(--bg-card, #ffffff);border:1px solid var(--border-color, #e2e8f0);border-radius:var(--border-radius-lg, 16px);padding:3rem;box-shadow:var(--shadow-md, 0 4px 16px rgba(0, 0, 0, .05));margin-top:1rem}@media (max-width: 768px){.single-blog-card{padding:1.75rem 1.25rem}}.blog-tag{display:inline-flex;align-items:center;gap:.4rem;background:var(--primary, #2563eb);color:#fff;font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;padding:.35rem .85rem;border-radius:9999px;margin-bottom:1.25rem}.blog-main-title{font-size:clamp(2rem,3.5vw,2.75rem);font-weight:800;color:var(--text-main, #0f172a);line-height:1.25;margin-bottom:1.25rem}.blog-meta-bar{display:flex;flex-wrap:wrap;align-items:center;gap:1.5rem;font-size:.88rem;color:var(--text-muted, #64748b);padding-bottom:1.5rem;margin-bottom:2rem;border-bottom:1px solid var(--border-color, #e2e8f0)}.blog-meta-item{display:flex;align-items:center;gap:.45rem}.blog-toc-box{background:var(--bg-card-subtle, #f8fafc);border:1px solid var(--border-color, #e2e8f0);border-radius:12px;padding:1.5rem;margin-bottom:2.5rem}.blog-toc-title{font-size:1.1rem;font-weight:700;color:var(--text-main, #0f172a);margin-bottom:.85rem;display:flex;align-items:center;gap:.5rem}.blog-toc-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:.5rem}.blog-toc-list a{color:var(--primary, #2563eb);text-decoration:none;font-size:.95rem;font-weight:500;transition:color .15s ease}.blog-toc-list a:hover{text-decoration:underline;color:var(--primary-dark, #1d4ed8)}.blog-content-section{margin-bottom:2.75rem}.blog-h2{font-size:1.65rem;font-weight:800;color:var(--text-main, #0f172a);line-height:1.35;margin:2rem 0 1rem;padding-bottom:.5rem;border-bottom:2px solid var(--border-color, #e2e8f0)}.blog-h3{font-size:1.25rem;font-weight:700;color:var(--text-main, #0f172a);margin:1.5rem 0 .75rem}.blog-p{font-size:1.05rem;line-height:1.8;color:var(--text-main, #334155);margin-bottom:1.25rem}.blog-callout{background:var(--primary-light, #eff6ff);border-left:4px solid var(--primary, #2563eb);border-radius:0 10px 10px 0;padding:1.25rem 1.5rem;margin:1.5rem 0;font-size:1rem;line-height:1.7;color:var(--text-main, #1e293b)}.blog-formula-box{background:var(--bg-card-subtle, #f8fafc);border:1px solid var(--border-color, #e2e8f0);border-radius:10px;padding:1.25rem 1.5rem;margin:1.25rem 0;font-family:var(--font-mono, monospace);font-size:1.1rem;font-weight:700;color:var(--primary, #2563eb);text-align:center}.blog-example-card{background:#fff;border:1px solid var(--border-color, #e2e8f0);border-radius:12px;padding:1.25rem 1.5rem;margin:1.25rem 0;box-shadow:0 2px 6px #0000000a}.blog-example-card h4{font-size:1.05rem;font-weight:700;color:var(--text-main, #0f172a);margin-bottom:.5rem}.blog-example-card p{margin-bottom:.5rem;font-size:.95rem;line-height:1.6}.blog-cta-box{background:linear-gradient(135deg,var(--primary, #2563eb),#1d4ed8);color:#fff;border-radius:var(--border-radius-lg, 16px);padding:2.5rem 2rem;text-align:center;margin-top:3.5rem;box-shadow:var(--shadow-lg, 0 10px 25px rgba(37, 99, 235, .2))}.blog-cta-title{font-size:1.75rem;font-weight:800;margin-bottom:.75rem;color:#fff}.blog-cta-desc{font-size:1.05rem;margin-bottom:1.5rem;color:#ffffffe6;max-width:600px;margin-left:auto;margin-right:auto}.blog-cta-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:1rem}.blog-cta-btn-white{background:#fff;color:var(--primary, #2563eb);font-weight:700;padding:.75rem 1.5rem;border-radius:8px;text-decoration:none;display:inline-flex;align-items:center;gap:.5rem;transition:transform .15s ease,box-shadow .15s ease}.blog-cta-btn-white:hover{transform:translateY(-2px);box-shadow:0 4px 12px #00000026;color:var(--primary-dark, #1d4ed8);text-decoration:none}:root{--bg-page: #f8fafc;--bg-card: #ffffff;--bg-card-subtle: #f1f5f9;--bg-input: #ffffff;--bg-hover: #f1f5f9;--bg-active: #e2e8f0;--text-main: #0f172a;--text-muted: #64748b;--text-subtle: #94a3b8;--text-inverse: #ffffff;--border-color: #e2e8f0;--border-focus: #3b82f6;--primary: #2563eb;--primary-hover: #1d4ed8;--primary-light: #eff6ff;--primary-border: #bfdbfe;--accent-green: #10b981;--accent-green-light: #ecfdf5;--accent-green-border: #a7f3d0;--accent-amber: #f59e0b;--accent-amber-light: #fffbeb;--accent-rose: #ef4444;--accent-rose-light: #fef2f2;--accent-rose-border: #fecaca;--accent-purple: #8b5cf6;--accent-purple-light: #f5f3ff;--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .05);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .08), 0 2px 4px -2px rgba(0, 0, 0, .05);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .08), 0 4px 6px -4px rgba(0, 0, 0, .05);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .08), 0 8px 10px -6px rgba(0, 0, 0, .04);--shadow-focus: 0 0 0 3px rgba(37, 99, 235, .2);--header-height: 72px;--max-content-width: 1200px;--border-radius-sm: 8px;--border-radius-md: 12px;--border-radius-lg: 18px;--border-radius-xl: 24px;--transition-fast: .15s cubic-bezier(.4, 0, .2, 1);--transition-normal: .25s cubic-bezier(.4, 0, .2, 1)}[data-theme=dark]{--bg-page: #0b0f17;--bg-card: #131b2e;--bg-card-subtle: #1a233b;--bg-input: #172138;--bg-hover: #1e293b;--bg-active: #334155;--text-main: #f8fafc;--text-muted: #94a3b8;--text-subtle: #64748b;--text-inverse: #0f172a;--border-color: #1e293b;--border-focus: #60a5fa;--primary: #3b82f6;--primary-hover: #60a5fa;--primary-light: rgba(59, 130, 246, .15);--primary-border: #1e3a8a;--accent-green: #34d399;--accent-green-light: rgba(16, 185, 129, .15);--accent-green-border: #065f46;--accent-amber: #fbbf24;--accent-amber-light: rgba(245, 158, 11, .15);--accent-rose: #f87171;--accent-rose-light: rgba(239, 68, 68, .15);--accent-rose-border: #7f1d1d;--accent-purple: #a78bfa;--accent-purple-light: rgba(139, 92, 246, .15);--shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, .4);--shadow-md: 0 4px 6px -1px rgba(0, 0, 0, .4), 0 2px 4px -2px rgba(0, 0, 0, .3);--shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, .5), 0 4px 6px -4px rgba(0, 0, 0, .4);--shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, .6), 0 8px 10px -6px rgba(0, 0, 0, .5);--shadow-focus: 0 0 0 3px rgba(96, 165, 250, .3)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html{font-family:Plus Jakarta Sans,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:var(--text-main);background-color:var(--bg-page);line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;scroll-behavior:smooth;transition:background-color var(--transition-normal),color var(--transition-normal)}body{min-height:100vh;display:flex;flex-direction:column}#root{display:flex;flex-direction:column;min-height:100vh}h1,h2,h3,h4,h5,h6{color:var(--text-main);font-weight:700;line-height:1.25;letter-spacing:-.02em}h1{font-size:2.25rem}h2{font-size:1.75rem}h3{font-size:1.25rem}h4{font-size:1.1rem}p{color:var(--text-muted);line-height:1.65}code,kbd,pre,samp{font-family:JetBrains Mono,monospace}a{color:var(--primary);text-decoration:none;transition:color var(--transition-fast)}a:hover{text-decoration:underline}.app-container{display:flex;flex-direction:column;min-height:100vh}.main-content{flex:1;width:100%;max-width:var(--max-content-width);margin:0 auto;padding:2rem 1.5rem 4rem}:focus-visible{outline:none;box-shadow:var(--shadow-focus)}.card{background:var(--bg-card);border:1px solid var(--border-color);border-radius:var(--border-radius-lg);box-shadow:var(--shadow-sm);padding:1.75rem;transition:transform var(--transition-fast),box-shadow var(--transition-fast),border-color var(--transition-fast)}.card:hover{border-color:var(--border-focus)}.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;padding:.65rem 1.25rem;font-size:.95rem;font-weight:600;font-family:inherit;border-radius:var(--border-radius-md);border:1px solid transparent;cursor:pointer;transition:all var(--transition-fast);text-decoration:none;-webkit-user-select:none;user-select:none}.btn-primary{background:var(--primary);color:#fff}.btn-primary:hover{background:var(--primary-hover);text-decoration:none;transform:translateY(-1px);box-shadow:var(--shadow-md)}.btn-secondary{background:var(--bg-card-subtle);color:var(--text-main);border-color:var(--border-color)}.btn-secondary:hover{background:var(--bg-hover);border-color:var(--text-muted);text-decoration:none}.btn-outline{background:transparent;color:var(--primary);border-color:var(--primary)}.btn-outline:hover{background:var(--primary-light);text-decoration:none}.btn-icon{padding:.55rem;border-radius:var(--border-radius-sm);color:var(--text-muted);background:transparent;border:1px solid var(--border-color);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;transition:all var(--transition-fast)}.btn-icon:hover{color:var(--text-main);background:var(--bg-hover);border-color:var(--border-focus)}.badge{display:inline-flex;align-items:center;gap:.35rem;padding:.25rem .65rem;font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;border-radius:9999px}.badge-blue{background:var(--primary-light);color:var(--primary);border:1px solid var(--primary-border)}.badge-green{background:var(--accent-green-light);color:var(--accent-green);border:1px solid var(--accent-green-border)}@keyframes fadeIn{0%{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}@keyframes pulseHighlight{0%{transform:scale(1)}50%{transform:scale(1.02)}to{transform:scale(1)}}.animate-fade-in{animation:fadeIn .25s ease-out forwards}.animate-highlight{animation:pulseHighlight .35s ease-in-out}@media (max-width: 768px){h1{font-size:1.75rem}h2{font-size:1.4rem}.main-content{padding:1.25rem 1rem 3rem}}
