:root{--wfc-primary:#4361ee;--wfc-primary-deep:#3a56d4;--wfc-secondary:#00a86b;--wfc-secondary-light:#e6f0ff;--wfc-danger:#e74c3c;--wfc-bg:#f7f9fb;--wfc-white:#ffffff;--wfc-text:#2b2d42;--wfc-border:#d8dce2;--wfc-radius:8px;--wfc-spacing:1.5rem;--wfc-gap:0.6rem;--wfc-text-muted:#6b7280;--wfc-text-light:#9ca3af;--wfc-surface:#ffffff;--wfc-surface-raised:#f0f4ff;--wfc-warning:#f59e0b;--wfc-warning-bg:#fffbeb;--wfc-success-bg:#f0fdf4;--wfc-danger-bg:#fff5f5;--wfc-shadow-sm:0 1px 3px rgba(43, 45, 66, 0.08), 0 1px 2px rgba(43, 45, 66, 0.04);--wfc-shadow-md:0 4px 16px rgba(43, 45, 66, 0.1), 0 2px 6px rgba(43, 45, 66, 0.06);--wfc-shadow-lg:0 12px 40px rgba(43, 45, 66, 0.14), 0 4px 12px rgba(43, 45, 66, 0.08);--wfc-cur-color:#4361ee;--wfc-new-color:#00a86b;--wfc-transition:0.2s cubic-bezier(0.4, 0, 0.2, 1)}.wfc-hidden{display:none!important}.wfc-sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}.wfc-hero{position:relative;overflow:hidden;margin-bottom:1rem;padding:1.5rem 1rem;background:linear-gradient(135deg,#1a1f3a 0%,#2d3566 50%,#1e3a5f 100%);border-radius:var(--wfc-radius)!important;color:var(--wfc-white);display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center}.wfc-hero__inner{position:relative;z-index:2}.wfc-hero__bg{position:absolute;inset:0;z-index:1;pointer-events:none;overflow:hidden}.wfc-hero__wheel{position:absolute;color:rgb(255 255 255 / .06)}.wfc-hero__wheel--1{width:340px;height:340px;right:-60px;top:-80px}.wfc-hero__wheel--2{width:180px;height:180px;left:-30px;bottom:-50px}.wfc-hero__badge{display:inline-flex;align-items:center;gap:6px;background:rgb(67 97 238 / .3);border:1px solid rgb(67 97 238 / .5);border-radius:20px;padding:4px 14px;font-size:.72rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:#a5b4fc;margin-bottom:1rem}.wfc-hero__badge-dot{width:6px;height:6px;border-radius:50%;background:#00a86b;animation:wfc-pulse 2s infinite}@keyframes wfc-pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.8)}}.wfc-hero__title{font-size:clamp(2rem, 5vw, 3.2rem);font-weight:800;line-height:1.1;letter-spacing:-.02em;color:#ffffff!important;margin-bottom:.5rem}.wfc-hero__title-accent{color:#60a5fa!important}.wfc-hero__title-sub{display:block;font-size:clamp(0.9rem, 2.2vw, 1.2rem);font-weight:400;color:rgb(255 255 255 / .6)!important;letter-spacing:.01em;margin-top:2px}.wfc-hero__desc{color:rgb(255 255 255 / .7);font-size:.95rem;max-width:480px;margin-bottom:1.8rem;line-height:1.6}.wfc-unit-toggle{display:inline-flex;align-items:center;background:rgb(255 255 255 / .08);border:1px solid rgb(255 255 255 / .15);border-radius:8px;padding:4px;gap:4px}.wfc-unit-btn{padding:6px 16px;border:1px solid var(--wfc-primary)!important;border-radius:6px;font-size:.82rem;font-weight:600;color:rgb(255 255 255 / .6)!important;transition:all var(--wfc-transition);letter-spacing:.02em;cursor:pointer}.wfc-unit-btn--active{background:var(--wfc-primary)!important;color:#ffffff!important;box-shadow:0 2px 8px rgb(67 97 238 / .4)}.wfc-unit-btn:hover{background:var(--wfc-primary)!important;border:1px solid var(--wfc-primary)!important;color:rgb(255 255 255 / .85)!important}.wfc-unit-btn:not(.wfc-unit-btn--active){background:rgb(255 255 255 / .12)!important;border:1px solid rgb(255 255 255 / .12)!important;color:rgb(255 255 255 / .85)!important}.wfc-main{display:flex;flex-direction:column;gap:2rem}.wfc-section{background:var(--wfc-surface);border:1px solid var(--wfc-border);border-radius:12px;padding:1rem;box-shadow:var(--wfc-shadow-sm)}.wfc-section--results{animation:wfc-fadeInUp 0.4s ease}@keyframes wfc-fadeInUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}.wfc-section__header{display:flex;align-items:center;gap:12px;margin-bottom:1.8rem}.wfc-section__header--inner{margin-bottom:1rem}.wfc-section__step{display:flex;align-items:center;justify-content:center;width:32px;height:32px;background:var(--wfc-primary);color:#ffffff!important;border-radius:8px;font-size:.7rem;font-weight:800;letter-spacing:.04em;flex-shrink:0}.wfc-section__step--sm{width:24px;height:24px;font-size:.65rem;border-radius:6px}.wfc-section__title{font-size:1.15rem;font-weight:700;color:var(--wfc-text);letter-spacing:-.01em}.wfc-section__title--sm{font-size:.95rem}.wfc-input-grid{display:grid;grid-template-columns:1fr auto 1fr;gap:1.2rem;align-items:start;margin-bottom:1.8rem}@media (max-width:700px){.wfc-input-grid{grid-template-columns:1fr}.wfc-compare-divider{flex-direction:row;justify-content:center;padding:.5rem 0}}.wfc-compare-divider{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;padding-top:2rem;color:var(--wfc-text-muted);font-size:.75rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase}.wfc-card{background:var(--wfc-bg);border:1.5px solid var(--wfc-border);border-radius:10px;padding:1.4rem;transition:border-color var(--wfc-transition),box-shadow var(--wfc-transition)}.wfc-card:focus-within{border-color:var(--wfc-primary);box-shadow:0 0 0 3px rgb(67 97 238 / .1)}.wfc-card--current{border-top:3px solid var(--wfc-cur-color)!important}.wfc-card--new{border-top:3px solid var(--wfc-new-color)!important}.wfc-card__label{display:flex;align-items:center;gap:8px;font-size:.78rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--wfc-text-muted);margin-bottom:1.2rem}.wfc-card__label-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}.wfc-card__label-dot--current{background:var(--wfc-cur-color)}.wfc-card__label-dot--new{background:var(--wfc-new-color)}.wfc-card__preview{margin-top:1rem;padding:10px 14px;background:var(--wfc-secondary-light);border-radius:8px;display:flex;align-items:center;gap:8px;font-size:.82rem}.wfc-card__preview-label{color:var(--wfc-text-muted);font-weight:500}.wfc-card__preview-val{font-weight:700;color:var(--wfc-primary);font-size:.9rem}.wfc-field-group{display:flex;flex-direction:column;gap:1rem}.wfc-field{display:flex;flex-direction:column;gap:6px}.wfc-label{display:flex;align-items:center;gap:6px;font-size:.8rem;font-weight:600;color:var(--wfc-text)}.wfc-label__unit{font-weight:400;color:var(--wfc-text-muted);font-size:.72rem}.wfc-input{width:100%;padding:10px 13px;background:var(--wfc-white)!important;border:1.5px solid var(--wfc-border)!important;border-radius:var(--wfc-radius)!important;font-size:0.9rem!important;color:var(--wfc-text)!important;font-weight:500;transition:border-color var(--wfc-transition),box-shadow var(--wfc-transition);outline:none;-moz-appearance:textfield}.wfc-input::-webkit-outer-spin-button,.wfc-input::-webkit-inner-spin-button{-webkit-appearance:none;margin:0}.wfc-input:focus{border-color:var(--wfc-primary)!important;box-shadow:0 0 0 3px rgb(67 97 238 / .12)}.wfc-input::placeholder{color:var(--wfc-text-light);font-weight:400}.wfc-input--error{border-color:var(--wfc-danger)!important;background:var(--wfc-danger-bg)!important}.wfc-input--error:focus{box-shadow:0 0 0 3px rgb(231 76 60 / .12)}.wfc-tire-input-row{display:flex;align-items:flex-end;gap:4px}.wfc-tire-field{display:flex;flex-direction:column;gap:3px;flex:1}.wfc-tire-label{font-size:.65rem;color:var(--wfc-text-muted);font-weight:500;text-align:center}.wfc-input--tire{padding:9px 6px;text-align:center;font-size:0.85rem!important}.wfc-tire-sep{font-weight:700;color:var(--wfc-text-muted);font-size:1rem;padding-bottom:10px;flex-shrink:0}.wfc-select{width:100%;padding:10px 36px 10px 13px;background:var(--wfc-white)!important;border:1.5px solid var(--wfc-border)!important;border-radius:var(--wfc-radius)!important;font-size:0.88rem!important;color:var(--wfc-text)!important;font-weight:500;appearance:none;-webkit-appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236b7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E")!important;background-repeat:no-repeat!important;background-position:right 12px center!important;background-size:16px!important;cursor:pointer;outline:none;transition:border-color var(--wfc-transition)}.wfc-select:focus{border-color:var(--wfc-primary)!important;box-shadow:0 0 0 3px rgb(67 97 238 / .12)}.wfc-field__err{font-size:.72rem;color:var(--wfc-danger)!important;font-weight:500;min-height:16px;display:flex;align-items:center;gap:4px}.wfc-field__err:not(:empty)::before{content:"⚠";font-size:.7rem}.wfc-tooltip-btn{display:inline-flex;align-items:center;justify-content:center;width:16px;height:16px;border-radius:50%;background:var(--wfc-border)!important;color:var(--wfc-text-muted)!important;font-size:0.65rem!important;font-weight:700;border:none!important;cursor:pointer;transition:background var(--wfc-transition);flex-shrink:0}.wfc-tooltip-btn:hover{background:var(--wfc-primary)!important;color:white!important}.wfc-tooltip-popup{position:fixed;z-index:9999;max-width:240px;padding:10px 14px;background:#1a1f3a;color:rgb(255 255 255 / .9);font-size:.78rem;line-height:1.5;border-radius:8px;box-shadow:var(--wfc-shadow-lg);pointer-events:none;opacity:0;transition:opacity 0.15s ease}.wfc-tooltip-popup.wfc-tooltip-popup--visible{opacity:1}.wfc-cta-row{display:flex;justify-content:center}.wfc-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 28px;border-radius:8px!important;font-weight:700;font-size:.9rem;letter-spacing:.01em;transition:all var(--wfc-transition);position:relative;overflow:hidden;border:none!important;cursor:pointer}.wfc-btn::after{content:"";position:absolute;inset:0;background:linear-gradient(rgb(255 255 255 / .15),#fff0);opacity:0;transition:opacity var(--wfc-transition)}.wfc-btn:hover::after{opacity:1}.wfc-btn--calculate{background:linear-gradient(135deg,var(--wfc-primary) 0%,var(--wfc-primary-deep) 100%)!important;color:#ffffff!important;padding:14px 40px;font-size:.95rem;box-shadow:0 4px 16px rgb(67 97 238 / .35);border-radius:10px!important}.wfc-btn--calculate:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgb(67 97 238 / .45)}.wfc-btn--calculate:active{transform:translateY(0)}.wfc-btn__icon{display:flex;align-items:center}.wfc-btn--pdf{background:var(--wfc-primary)!important;color:#ffffff!important;box-shadow:0 2px 8px rgb(67 97 238 / .25)}.wfc-btn--pdf:hover{background:var(--wfc-primary-deep)!important;transform:translateY(-1px)}.wfc-btn--copy{background:var(--wfc-surface-raised)!important;color:var(--wfc-primary)!important;border:1.5px solid var(--wfc-primary)!important}.wfc-btn--copy:hover{background:var(--wfc-primary)!important;color:#ffffff!important}.wfc-btn--reset{background:var(--wfc-surface-raised)!important;color:var(--wfc-danger)!important;border:1.5px solid var(--wfc-danger)!important}.wfc-btn--reset:hover{background:var(--wfc-danger)!important;color:#ffffff!important}.wfc-btn--secondary{background:var(--wfc-surface-raised)!important;color:var(--wfc-text)!important;border:1.5px solid var(--wfc-border)!important}.wfc-btn--secondary:hover{background:var(--wfc-border)!important}.wfc-btn--danger{background:var(--wfc-danger)!important;color:#ffffff!important}.wfc-btn--danger:hover{background:#c0392b!important}.wfc-status-banner{display:flex;align-items:center;gap:14px;padding:14px 18px;border-radius:10px;margin-bottom:1.5rem;border:1.5px solid #fff0}.wfc-status-banner--safe{background:var(--wfc-success-bg);border-color:#86efac!important}.wfc-status-banner--warning{background:var(--wfc-warning-bg);border-color:#fcd34d!important}.wfc-status-banner--danger{background:var(--wfc-danger-bg);border-color:#fca5a5!important}.wfc-status-banner__icon{font-size:1.5rem;flex-shrink:0}.wfc-status-banner__title{font-size:.9rem;font-weight:700;display:block;margin-bottom:2px}.wfc-status-banner--safe .wfc-status-banner__title{color:#166534}.wfc-status-banner--warning .wfc-status-banner__title{color:#92400e}.wfc-status-banner--danger .wfc-status-banner__title{color:#991b1b}.wfc-status-banner__msg{font-size:.82rem;color:var(--wfc-text-muted);line-height:1.5}.wfc-metrics-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:.8rem;margin-bottom:1.8rem}.wfc-metric-card{background:var(--wfc-bg);border:1.5px solid var(--wfc-border);border-radius:10px;padding:14px 16px;display:flex;flex-direction:column;gap:4px;transition:transform var(--wfc-transition)}.wfc-metric-card:hover{transform:translateY(-2px)}.wfc-metric-card__icon{font-size:1.2rem;margin-bottom:2px}.wfc-metric-card__label{font-size:.68rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--wfc-text-muted)}.wfc-metric-card__val{font-size:1.1rem;font-weight:800;color:var(--wfc-text);line-height:1.2}.wfc-metric-card__sub{font-size:.72rem;color:var(--wfc-text-muted)}.wfc-metric-card--positive .wfc-metric-card__val{color:var(--wfc-secondary)}.wfc-metric-card--negative .wfc-metric-card__val{color:var(--wfc-danger)}.wfc-metric-card--neutral .wfc-metric-card__val{color:var(--wfc-primary)}.wfc-diagram-wrapper{margin-bottom:1.8rem}.wfc-diagram{background:var(--wfc-bg);border:1.5px solid var(--wfc-border);border-radius:10px;padding:1rem;overflow-x:auto}#wfc-diagram-svg{width:100%;min-width:480px}.wfc-diagram__legend{display:flex;gap:1.5rem;justify-content:center;padding-top:10px;margin-top:10px;border-top:1px solid var(--wfc-border)}.wfc-diagram__legend-item{display:flex;align-items:center;gap:6px;font-size:.75rem;font-weight:600;color:var(--wfc-text-muted)}.wfc-diagram__legend-swatch{width:24px;height:4px;border-radius:2px}.wfc-diagram__legend-item--cur .wfc-diagram__legend-swatch{background:var(--wfc-cur-color)}.wfc-diagram__legend-item--new .wfc-diagram__legend-swatch{background:var(--wfc-new-color)}.wfc-compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:1rem;margin-bottom:1.5rem}@media (max-width:600px){.wfc-compare-grid{grid-template-columns:1fr}}.wfc-compare-card{border-radius:10px;border:1.5px solid var(--wfc-border);overflow:hidden}.wfc-compare-card__header{display:flex;align-items:center;gap:8px;padding:12px 16px;font-size:.78rem;font-weight:700;letter-spacing:.05em;text-transform:uppercase}.wfc-compare-card--cur .wfc-compare-card__header{background:rgb(67 97 238 / .08);color:var(--wfc-cur-color)}.wfc-compare-card--new .wfc-compare-card__header{background:rgb(0 168 107 / .08);color:var(--wfc-new-color)}.wfc-compare-card__header-dot{width:8px;height:8px;border-radius:50%;flex-shrink:0}.wfc-compare-card--cur .wfc-compare-card__header-dot{background:var(--wfc-cur-color)}.wfc-compare-card--new .wfc-compare-card__header-dot{background:var(--wfc-new-color)}.wfc-compare-card__body{padding:8px 0}.wfc-compare-row{display:flex;justify-content:space-between;align-items:center;padding:8px 16px;font-size:.82rem;border-bottom:1px solid var(--wfc-bg)}.wfc-compare-row:last-child{border-bottom:none}.wfc-compare-row__label{color:var(--wfc-text-muted);font-weight:500}.wfc-compare-row__val{font-weight:700;color:var(--wfc-text)}.wfc-change-summary{background:var(--wfc-surface-raised);border:1.5px solid var(--wfc-border);border-radius:10px;padding:1.2rem 1.4rem;margin-bottom:1.5rem}.wfc-change-summary__title{font-size:.78rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--wfc-text-muted);margin-bottom:1rem}.wfc-change-list{display:flex;flex-direction:column;gap:8px}.wfc-change-item{display:flex;align-items:center;gap:10px;font-size:.85rem}.wfc-change-item__arrow{width:6px;height:6px;border-radius:50%;flex-shrink:0}.wfc-change-item__arrow--pos{background:var(--wfc-secondary)}.wfc-change-item__arrow--neg{background:var(--wfc-danger)}.wfc-change-item__arrow--neu{background:var(--wfc-text-light)}.wfc-change-item__label{color:var(--wfc-text-muted);flex:1}.wfc-change-item__diff{font-weight:700}.wfc-change-item__diff--pos{color:var(--wfc-secondary)}.wfc-change-item__diff--neg{color:var(--wfc-danger)}.wfc-change-item__diff--neu{color:var(--wfc-text-muted)}.wfc-tips{display:flex;flex-direction:column;gap:8px;margin-bottom:1.8rem}.wfc-tip{display:flex;align-items:flex-start;gap:10px;padding:10px 14px;border-radius:8px;font-size:.82rem;line-height:1.5}.wfc-tip--info{background:var(--wfc-secondary-light)}.wfc-tip--warn{background:var(--wfc-warning-bg)}.wfc-tip--danger{background:var(--wfc-danger-bg)}.wfc-tip__icon{font-size:1rem;flex-shrink:0;margin-top:1px}.wfc-tip__text{color:var(--wfc-text)}.wfc-tip__text strong{font-weight:700}.wfc-actions{display:flex;gap:10px;flex-wrap:wrap;padding-top:1rem;border-top:1px solid var(--wfc-border)}.wfc-modal-overlay{position:fixed;inset:0;z-index:1000;background:rgb(27 31 58 / .7);display:flex;align-items:center;justify-content:center;padding:1rem;backdrop-filter:blur(4px);animation:wfc-fadeIn 0.2s ease}@keyframes wfc-fadeIn{from{opacity:0}to{opacity:1}}.wfc-modal{background:var(--wfc-white);border-radius:14px;padding:2rem;max-width:380px;width:100%;box-shadow:var(--wfc-shadow-lg);text-align:center;animation:wfc-slideUp 0.25s ease}@keyframes wfc-slideUp{from{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.wfc-modal__icon{font-size:2.5rem;margin-bottom:1rem}.wfc-modal__title{font-size:1.1rem;font-weight:700;color:var(--wfc-text);margin-bottom:.5rem}.wfc-modal__msg{font-size:.85rem;color:var(--wfc-text-muted);line-height:1.6;margin-bottom:1.5rem}.wfc-modal__actions{display:flex;gap:10px;justify-content:center}.wfc-toast{position:fixed;bottom:2rem;right:2rem;z-index:9999;background:#1a1f3a;color:#fff;padding:12px 20px;border-radius:8px;font-size:.84rem;font-weight:600;box-shadow:var(--wfc-shadow-lg);display:flex;align-items:center;gap:8px;animation:wfc-toastIn 0.3s ease}@keyframes wfc-toastIn{from{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.wfc-toast--exit{animation:wfc-toastOut 0.3s ease forwards}@keyframes wfc-toastOut{to{transform:translateY(20px);opacity:0}}@media (max-width:768px){.wfc-hero{padding:2.5rem 1.5rem 2rem}.wfc-metrics-grid{grid-template-columns:repeat(2,1fr)}.wfc-actions{justify-content:center}.wfc-btn{font-size:.82rem;padding:10px 18px}.wfc-btn--calculate{padding:12px 28px}}@media (max-width:480px){.wfc-hero{margin:1rem 0;border-radius:12px}.wfc-metrics-grid{grid-template-columns:1fr 1fr}.wfc-hero__wheel--1{width:220px;height:220px}}@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:0.01ms!important;transition-duration:0.01ms!important}}:focus-visible{outline:2px solid var(--wfc-primary);outline-offset:2px}