:root{
  --bg:#F8FAFC;--surface:#fff;--surface-soft:#F1F5F9;--text:#0F172A;--muted:#475569;--border:#E2E8F0;--border-strong:#CBD5E1;
  --primary:#2563EB;--primary-hover:#1D4ED8;--primary-soft:#EFF6FF;--success:#0F766E;--success-soft:#F0FDFA;--warning:#B45309;--warning-soft:#FFFBEB;--danger:#B91C1C;--danger-soft:#FEF2F2;--focus:#2563EB;
  --shadow-sm:0 1px 2px rgba(15,23,42,.06);--shadow-md:0 8px 24px rgba(15,23,42,.08)
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans","Noto Sans JP","Noto Sans KR","Noto Sans SC",Arial,sans-serif;line-height:1.6}
a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit;color:inherit}button,a,input,select,textarea,summary{outline-offset:3px}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{outline:3px solid var(--focus)}
.skip{position:absolute;left:-9999px;top:8px;background:#fff;padding:10px 14px;border-radius:8px;z-index:200}.skip:focus{left:8px}.container{width:min(1200px,calc(100% - 32px));margin:auto}.task-column{width:min(820px,100%);margin:auto}
.site-header{height:66px;background:#fff;border-bottom:1px solid var(--border);display:flex;align-items:center;position:sticky;top:0;z-index:50}.header-row{display:flex;align-items:center;gap:28px;width:100%}.logo{font-weight:850;font-size:20px;letter-spacing:-.02em}.logo span{color:var(--primary)}.desktop-nav{display:flex;gap:22px;font-size:14px;font-weight:700}.header-actions{margin-left:auto;display:flex;gap:10px;align-items:center}.icon-btn,.ghost,.secondary,.primary,.danger-btn{border-radius:10px;min-height:44px;padding:9px 13px;cursor:pointer;border:1px solid var(--border);background:#fff;font-weight:700}.primary{background:var(--primary);border-color:var(--primary);color:#fff;min-height:48px;padding:12px 18px}.primary:hover{background:var(--primary-hover)}.secondary{background:var(--primary-soft);border-color:#BFDBFE;color:#1E40AF}.danger-btn{color:var(--danger);background:var(--danger-soft)}.mobile-menu-btn{display:none}.lang-select{min-height:44px;border:1px solid var(--border);border-radius:10px;padding:0 10px;background:#fff}
.hero{padding:72px 0 56px}.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:52px;align-items:center}.eyebrow{font-size:13px;font-weight:850;color:var(--primary);text-transform:uppercase;letter-spacing:.06em}.hero h1,.page-title{font-size:clamp(32px,4.2vw,48px);line-height:1.08;margin:12px 0 18px;letter-spacing:-.035em}.lead{font-size:18px;line-height:1.65;color:var(--muted);max-width:680px}.feature,.calc-card,.content-card,.tool-card,.result-panel,.next-cta,.trust-strip,.saved-card{background:#fff;border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow-sm)}.feature{padding:24px}.section{padding:64px 0}.section h2{font-size:28px;line-height:1.25;margin:0 0 8px}.sub{color:var(--muted);margin-bottom:24px}.tool-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.tool-grid.two{grid-template-columns:2fr 1fr}.tool-card{padding:22px;transition:.15s transform,.15s box-shadow,.15s border-color}.tool-card:hover,.tool-card:focus-visible{transform:translateY(-1px);box-shadow:var(--shadow-md);border-color:#BFDBFE}.tool-icon{width:40px;height:40px;border-radius:10px;background:var(--primary-soft);color:var(--primary);display:grid;place-items:center;font-weight:900;margin-bottom:14px}.tool-card h3{font-size:18px;margin:0 0 6px}.tool-card p{margin:0;color:var(--muted);font-size:14px}.trust-strip{display:grid;grid-template-columns:repeat(4,1fr);padding:18px 22px;gap:12px;text-align:center;font-size:14px;font-weight:700}.home-search{margin-top:28px;position:relative}.search-line{display:flex;border:1px solid var(--border);background:#fff;border-radius:12px;overflow:hidden;box-shadow:var(--shadow-sm)}.search-line input{border:0;padding:14px 16px;flex:1;min-width:0;font-size:16px}.search-line button{border:0;background:var(--primary);color:#fff;padding:0 18px;font-weight:800}.search-results{position:absolute;left:0;right:0;top:calc(100% + 8px);z-index:30;background:#fff;border:1px solid var(--border);border-radius:12px;box-shadow:var(--shadow-md);padding:8px}.search-results a{display:block;padding:10px 12px;border-radius:8px}.search-results a:hover,.search-results a:focus{background:var(--surface-soft)}
.breadcrumb{font-size:14px;color:var(--muted);padding-top:28px}.calc-page{padding-bottom:64px}.calc-intro{padding:12px 0 24px}.calc-intro h1{font-size:40px;line-height:1.12;margin:14px 0 12px;letter-spacing:-.03em}.calc-card{padding:26px}.tabs,.segments{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:20px}.tab,.segment{border:1px solid var(--border);background:#fff;min-height:44px;border-radius:10px;padding:9px 13px;font-weight:750;cursor:pointer}.tab[aria-selected="true"],.segment[aria-pressed="true"]{background:var(--primary-soft);color:#1D4ED8;border-color:#93C5FD}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.form-grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.field{display:flex;flex-direction:column;gap:6px}.field label{font-size:14px;font-weight:750}.field input,.field select,.field textarea{border:1px solid var(--border-strong);border-radius:10px;background:#fff;min-height:48px;padding:10px 12px;font-size:16px}.field textarea{min-height:92px;resize:vertical}.helper{font-size:13px;color:var(--muted)}.error{background:var(--danger-soft);color:var(--danger);border:1px solid #FECACA;border-radius:10px;padding:12px 14px;margin:14px 0}.warning{background:var(--warning-soft);color:var(--warning);border:1px solid #FDE68A;border-radius:10px;padding:12px 14px;margin:14px 0}.advanced{margin:16px 0;border-top:1px solid var(--border);padding-top:14px}.advanced summary{cursor:pointer;font-weight:750;min-height:44px;display:flex;align-items:center}.calc-actions{display:flex;gap:10px;margin-top:20px;flex-wrap:wrap}.calc-actions .primary{min-width:220px}.result-panel{margin-top:22px;padding:24px;background:var(--success-soft);border-color:#99F6E4}.result-label{font-size:12px;font-weight:850;letter-spacing:.08em;color:var(--success);text-transform:uppercase}.result-big{font-size:48px;line-height:1.05;font-weight:850;margin:10px 0 18px;letter-spacing:-.035em}.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.metric{background:rgba(255,255,255,.72);border:1px solid #CCFBF1;border-radius:12px;padding:14px}.metric small{display:block;color:var(--muted);font-size:12px}.metric b{font-size:18px}.result-actions{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}.next-cta{margin-top:18px;padding:18px 20px;background:var(--primary-soft);border-color:#BFDBFE;display:flex;justify-content:space-between;gap:16px;align-items:center}.ad-slot{min-height:110px;margin:32px 0;border-radius:12px}.ad-slot[data-ad-slot="calc-bottom-multiplex"]{min-height:180px}.ad-dev{border:1px dashed #94A3B8;background:#F8FAFC;color:#64748B;display:grid;place-items:center;font-size:12px;font-weight:800;letter-spacing:.04em}.post-grid{display:grid;grid-template-columns:minmax(0,820px) 300px;gap:32px;align-items:start;margin-top:32px}.content-card{padding:24px;margin-bottom:18px}.content-card h2{font-size:24px;margin:0 0 12px}.content-card h3{font-size:18px;margin:18px 0 6px}.content-card p{color:var(--muted)}.content-card ul{color:var(--muted)}.sidebar .ad-slot{min-height:280px;margin-top:0}.related-list{display:grid;gap:8px}.related-list a{display:block;padding:10px 12px;background:var(--surface-soft);border-radius:9px;font-weight:700}.faq details{border-top:1px solid var(--border);padding:12px 0}.faq summary{font-weight:750;cursor:pointer}.faq p{margin:8px 0 4px}.accuracy{font-size:14px;background:#F8FAFC;border:1px solid var(--border);border-radius:12px;padding:14px 16px;color:var(--muted)}
.table-wrap{overflow:auto;border:1px solid var(--border);border-radius:12px;margin-top:14px}table{border-collapse:collapse;width:100%;min-width:620px;background:#fff}th,td{padding:10px 12px;border-bottom:1px solid var(--border);text-align:left;font-size:14px}th{background:var(--surface-soft);font-weight:800}.timecard-row input{min-width:105px}.check-row{display:flex;align-items:center;gap:8px;min-height:44px}.check-row input{width:20px;height:20px}.zone-card,.meeting-card{border:1px solid var(--border);border-radius:12px;background:#fff;padding:14px;margin-top:10px}.zone-card b{display:block}.zone-meta{color:var(--muted);font-size:14px}.participant-row{display:grid;grid-template-columns:2fr 1fr 1fr auto;gap:8px;align-items:end;margin-bottom:10px}.participant-row .remove{min-width:44px}.saved-list{display:grid;gap:10px;margin-top:14px}.saved-card{padding:14px;display:flex;justify-content:space-between;gap:12px}.saved-card small{color:var(--muted)}
.static-seo{margin-top:28px}.static-seo h2{font-size:24px}.static-seo p{color:var(--muted)}.legal{width:min(820px,calc(100% - 32px));margin:40px auto 72px;background:#fff;border:1px solid var(--border);border-radius:16px;padding:28px}.legal h1{font-size:36px}.legal h2{font-size:22px;margin-top:30px}.legal p,.legal li{color:var(--muted)}
.site-footer{border-top:1px solid var(--border);background:#fff;padding:44px 0;color:var(--muted);font-size:14px}.footer-grid{display:grid;grid-template-columns:2fr repeat(4,1fr);gap:28px}.footer-grid h3{font-size:14px;color:var(--text);margin:0 0 10px}.footer-grid a{display:block;margin:6px 0}.footer-brand{font-weight:800;color:var(--text);font-size:18px}.footer-bottom{border-top:1px solid var(--border);margin-top:28px;padding-top:18px}
.mobile-nav{display:none;position:fixed;inset:58px 0 auto 0;background:#fff;border-bottom:1px solid var(--border);z-index:45;padding:16px}.mobile-nav a{display:block;padding:12px;font-weight:750}.mobile-nav.open{display:block}
@media(max-width:1023px){.hero-grid,.post-grid{grid-template-columns:1fr}.tool-grid{grid-template-columns:repeat(2,1fr)}.tool-grid.two{grid-template-columns:1fr}.sidebar{display:none}.desktop-nav{display:none}.mobile-menu-btn{display:inline-flex}.footer-grid{grid-template-columns:repeat(2,1fr)}.footer-grid>div:first-child{grid-column:1/-1}.calc-intro h1{font-size:36px}}
@media(max-width:640px){.container{width:min(100% - 24px,1200px)}.site-header{height:58px}.header-row{gap:8px}.header-actions{gap:6px}.lang-select{max-width:92px}.hero{padding:44px 0 34px}.hero h1,.page-title{font-size:32px}.lead{font-size:16px}.section{padding:42px 0}.tool-grid,.trust-strip,.form-grid,.form-grid.three,.metrics{grid-template-columns:1fr}.calc-card{padding:18px}.calc-intro h1{font-size:30px}.result-big{font-size:40px}.calc-actions .primary{width:100%;min-width:0}.next-cta{align-items:flex-start;flex-direction:column}.participant-row{grid-template-columns:1fr 1fr}.participant-row .field:first-child{grid-column:1/-1}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}.result-actions .ghost{flex:1}.mobile-nav{top:58px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important;animation:none!important}}