@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans+Arabic:wght@400;450;500;600;700&family=Inter:wght@400;500;600;700;800&display=swap');
:root{--navy:#111e36;--ink:#19283f;--muted:#6e7f94;--blue:#256ae7;--line:#e2e8f1;--bg:#f3f6fa;--gold:#efc477}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 'Inter','IBM Plex Sans Arabic',sans-serif}html[lang=ar] body{font-family:'IBM Plex Sans Arabic','Inter',sans-serif}button,input,select{font:inherit}button,a,select,input{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}button:focus-visible,a:focus-visible,summary:focus-visible{outline:3px solid #59aaff;outline-offset:4px}svg{width:22px;height:22px;flex-shrink:0}button{border:0}a{color:inherit}.sidebar{width:224px;position:fixed;inset-block:0;inset-inline-start:0;background:var(--navy);color:#b5c3d6;padding:36px 22px;display:flex;flex-direction:column;z-index:5;border-inline-end:1px solid #23324b}.brand{display:flex;align-items:center;gap:13px;text-decoration:none;color:#fff;font-size:31px;font-weight:800;line-height:1;letter-spacing:1.5px}.brand-gem{width:43px;height:48px;color:var(--gold);display:grid;place-items:center;border:1px solid #566071;border-radius:12px}.brand-gem svg{width:28px;height:28px}.brand-small{display:block;font-size:12px;letter-spacing:3px;font-weight:500;margin-top:10px}.side-caption{font-size:12px;color:#8090a9;letter-spacing:1.2px;margin:54px 10px 16px}nav{display:flex;flex-direction:column;gap:9px}.nav-item{display:flex;align-items:center;gap:14px;text-align:start;color:#b6c3d6;background:transparent;padding:15px 16px;border-radius:9px;font-size:16px}.nav-item:hover{background:#1c2e49}.nav-item.active{color:#fff;background:#256ae7;box-shadow:0 7px 20px #0002}.nav-item svg{width:20px}.side-note{margin-top:auto;padding:28px 10px 24px;border-bottom:1px solid #30405a}.side-note svg{color:var(--gold)}.side-note p{font-size:14px;color:#d4deec;line-height:1.8}.side-note small{font-size:10px;letter-spacing:1px;color:#8093af}.side-bottom{display:flex;justify-content:space-between;font-size:9px;letter-spacing:1px;padding-top:22px;color:#8192aa}.workspace{margin-inline-start:224px}header{height:84px;background:#fff;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;padding:0 42px}.breadcrumb{display:flex;gap:14px;font-size:14px;color:var(--muted)}.breadcrumb strong{color:var(--ink);font-weight:500}.language{display:flex;align-items:center;gap:9px;border:1px solid var(--line);background:#fff;border-radius:8px;padding:8px 15px;font-size:14px;color:#3c4d65}.language svg{width:18px}main{max-width:1480px;padding:30px 42px 0;margin:auto}.intro{position:relative;overflow:hidden;background:#152747 url('assets/world.jpg') center 45%/cover;border-radius:16px;color:white;height:192px;isolation:isolate}.intro:before{content:'';position:absolute;inset:0;background:linear-gradient(90deg,#132b4780,#142747e8 55%,#13233efc);z-index:-1}html[dir=ltr] .intro:before{background:linear-gradient(90deg,#13233efc,#142747e8 55%,#132b4780)}.intro-content{position:relative;z-index:2;padding:23px 30px;width:75%}.eyebrow{display:flex;align-items:center;gap:10px;font:500 11px/1.6 Inter,sans-serif;letter-spacing:2px;color:#e5c98f}.rule{width:23px;height:1px;background:var(--gold)}h1{font-size:32px;line-height:1.4;margin:9px 0 2px;font-weight:600;letter-spacing:-.7px}.intro p{color:#c2d4eb;margin:0;font-size:15px}.intro-tag{display:inline-block;border:1px solid #9bb3d44d;color:#cee1f9;padding:2px 11px;border-radius:4px;font-size:12px;margin-top:13px}.knight{position:absolute;inset-inline-end:13px;top:-42px;width:270px;height:310px;object-fit:contain;filter:drop-shadow(0 10px 15px #0005);z-index:1}.section-title{display:flex;align-items:center;justify-content:space-between;margin:28px 0 16px}.section-title h2{font-size:25px;margin:0;font-weight:600}.section-title p{font-size:14px;color:var(--muted);margin:0}.reset{display:flex;align-items:center;gap:7px;color:#697b94;background:none;font-size:14px;padding:9px 0}.reset svg{width:16px}.controls{display:flex;align-items:center;justify-content:space-between;background:white;border:1px solid var(--line);border-radius:12px;padding:12px 16px;gap:20px}.segmented{display:flex;padding:4px;background:#f1f5fb;border-radius:9px;gap:4px}.segmented button{display:flex;align-items:center;gap:10px;padding:9px 21px;border-radius:7px;color:var(--muted);background:none}.segmented button strong{font-family:Inter,sans-serif;font-size:15px}.segmented button span{font-size:13px}.segmented button.selected{color:#256ae7;background:#fff;box-shadow:0 1px 5px #19366415}.type-control{display:flex;align-items:center;gap:12px;font-size:14px}.type-control label{color:var(--muted)}select{max-width:230px;border:1px solid var(--line);padding:8px 12px;border-radius:7px;background:#fff;color:var(--ink);font-size:14px}.variants{display:flex;gap:8px;margin:18px 0 20px;flex-wrap:wrap}.variants button{border-radius:7px;border:1px solid var(--line);color:#5f7086;background:transparent;padding:9px 16px;font-size:14px}.variants button.chosen{background:#e6efff;border-color:#b7ceff;color:#225ed0}.calculator-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:23px;align-items:start;margin-top:20px}.inputs{display:flex;flex-direction:column;gap:20px;min-width:0}.input-card{background:white;border:1px solid var(--line);border-radius:12px;padding:23px}.card-heading{display:flex;align-items:center;gap:13px;padding-bottom:20px;border-bottom:1px solid #edf0f5;margin-bottom:22px}.step{width:35px;height:35px;background:#eef4ff;border-radius:8px;color:#3875df;display:grid;place-items:center;font:600 13px Inter,sans-serif}.card-heading h3{font-weight:600;font-size:17px;line-height:1.5;margin:0}.card-heading div>span{display:block;color:var(--muted);font-size:12px;margin-top:2px}.field-grid{display:grid;grid-template-columns:1fr 1fr;gap:23px 24px}.field{min-width:0}.field-label{display:flex;justify-content:space-between;align-items:start;gap:5px;margin-bottom:5px}.field-label label{font-size:14px;line-height:1.65;font-weight:500}.help{width:17px;height:17px;min-width:17px;display:grid;place-items:center;font:12px Inter,sans-serif;background:none;border:1px solid #c5cfde;border-radius:50%;color:#8a9bb2;margin-top:4px;padding:0}.stat-code{display:block;font:11px/1.5 Inter,sans-serif;color:#8896a8;margin-bottom:8px;min-height:16px}.number-wrap{display:flex;align-items:center;position:relative;border:1px solid #dae3ef;border-radius:8px;background:#f9fbfd;overflow:hidden;direction:ltr}.number-wrap:focus-within{border-color:#4d90fa;box-shadow:0 0 0 3px #3e83ee12}.number-wrap input{width:100%;background:none;border:0;color:#253b5b;padding:10px 13px;font:500 16px/1.5 Inter,sans-serif;outline:none;min-width:0;-moz-appearance:textfield}.number-wrap input::-webkit-inner-spin-button{opacity:0}.number-wrap input[aria-invalid=true]{box-shadow:inset 0 0 0 1px #d95050;background:#fff1f1}.number-wrap>span{padding-inline-end:13px;font-size:13px;color:#8594a9}.field-help{font-size:13px;color:#5a7092;line-height:1.7;background:#eff5ff;border-radius:7px;padding:10px;margin:8px 0 0}.results{display:flex;flex-direction:column;gap:17px;position:sticky;top:24px;min-width:0}.result-card{background:linear-gradient(150deg,#203d67,#111f39);border-radius:12px;color:white;overflow:hidden;border:1px solid #2a4163;box-shadow:0 9px 22px 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0;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:11px;color:#8291a6}footer b{padding:0 8px;color:#afbcd0}footer>span:first-child{font-family:Inter,sans-serif;letter-spacing:1px}button,summary{transition:background .15s,color .15s}button:hover{filter:brightness(.97)}@media(min-width:1550px){.calculator-grid{grid-template-columns:minmax(0,1fr) 350px}.field-grid{grid-template-columns:repeat(3,1fr)}}@media(max-width:1150px){.sidebar{width:190px;padding-inline:15px}.workspace{margin-inline-start:190px}main{padding-inline:24px}header{padding-inline:24px}.calculator-grid{grid-template-columns:minmax(0,1fr) 280px;gap:17px}.input-card{padding:18px}.field-grid{gap:20px 16px}.intro-content{width:80%}h1{font-size:29px}.knight{width:235px;inset-inline-end:-10px}.primary-output strong{font-size:29px}}@media(max-width:900px){.sidebar{position:relative;inset:auto;width:auto;flex-direction:row;padding:16px 22px;align-items:center;gap:30px}.brand{font-size:24px}.brand-small{font-size:9px;margin-top:6px}.brand-gem{width:34px;height:38px}.side-caption,.side-note,.side-bottom{display:none}nav{flex-direction:row;flex:1;justify-content:flex-end;gap:5px}.nav-item{font-size:14px;padding:10px 12px;gap:7px}.nav-item svg{width:18px}.workspace{margin:0}header{height:66px}.calculator-grid{grid-template-columns:minmax(0,1fr) 300px}.intro{height:180px}.intro-content{padding:24px}.knight{width:235px;top:-42px}.result-card{padding:19px}}@media(max-width:720px){.sidebar{padding:16px 18px 10px;flex-wrap:wrap;gap:17px}.brand-gem{display:none}nav{flex-basis:100%;justify-content:space-between}.nav-item{flex:1;justify-content:center;font-size:13px;padding:10px 4px;gap:6px}.nav-item svg{width:16px}.nav-item.active{box-shadow:none}header{padding:0 18px;height:62px}main{padding:18px 16px 0}.intro{height:169px;border-radius:12px}.intro-content{padding:19px;width:90%}.eyebrow{font-size:9px;letter-spacing:1px}h1{font-size:24px;margin-top:12px}.intro p{font-size:13px;max-width:70%}.intro-tag{font-size:11px}.knight{width:165px;height:225px;top:-12px;inset-inline-end:-25px;opacity:.77}.intro:before{background:linear-gradient(90deg,#14274777,#142747ec 65%,#142747)!important}html[dir=ltr] .intro:before{background:linear-gradient(90deg,#142747,#142747ec 65%,#14274777)!important}.section-title{margin:22px 0 13px}.section-title h2{font-size:22px}.section-title p{font-size:12px}.reset{font-size:12px}.controls{gap:12px;align-items:stretch;flex-direction:column;padding:12px}.segmented button{flex:1;justify-content:center;padding:9px 12px}.type-control{justify-content:space-between}.type-control select{flex:1;max-width:58%}.variants{display:grid;grid-template-columns:1fr 1fr;gap:7px;margin:14px 0}.variants button{font-size:13px;padding:8px}.calculator-grid{display:flex;flex-direction:column;gap:17px}.results{position:static;width:100%;order:-1;display:grid;grid-template-columns:1fr;gap:12px}.result-card{padding:19px}.result-kind{margin:15px 0 9px}.primary-output strong{font-size:36px}.result-footer{margin-top:15px;padding-top:10px}.how-card{display:none}.insight-card{padding:15px;display:flex;align-items:center;gap:15px;flex-wrap:wrap}.insight-card>strong{font-size:22px}.insight-card .meter{width:100%;margin:0}.insight-card p{margin:0}.inputs{width:100%;gap:17px}.input-card{padding:18px}.card-heading{padding-bottom:15px;margin-bottom:17px}.field-grid{gap:21px 16px}.field-label label{font-size:14px}.stat-code{font-size:10px}.number-wrap input{font-size:16px;padding:10px}.guide{padding:18px;margin-top:20px}footer{font-size:10px;flex-direction:column}}@media(max-width:380px){.nav-item{font-size:12px;gap:4px}h1{font-size:21px}.field-grid{grid-template-columns:1fr}.intro p{max-width:65%}}@media(prefers-reduced-motion:reduce){*{transition:none!important}} 
/* Language selector and text expansion for the five supported locales. */
.language select{border:0;background:transparent;max-width:145px;padding:3px 0;cursor:pointer;color:inherit;font-size:14px;outline-offset:3px}.intro{height:auto;min-height:192px}.intro-content{min-height:192px}.nav-item span{min-width:0;overflow-wrap:break-word}.side-bottom{flex-wrap:wrap;gap:8px;font-size:10px;letter-spacing:0;line-height:1.5}.card-heading div{min-width:0}.field-label label{overflow-wrap:break-word}.type-control label{flex-shrink:0}.segmented button span{white-space:normal}html[lang=ru] h1{font-size:29px}html[lang=fil] h1{font-size:29px}@media(max-width:720px){.intro{min-height:169px}.intro-content{min-height:169px}.language{padding:6px 10px;gap:6px}.language select{max-width:115px;font-size:13px}html[lang=ru] h1,html[lang=fil] h1{font-size:22px}.nav-item{align-items:center}.nav-item span{font-size:12px;line-height:1.4}.reset{max-width:40%;text-align:start}.section-title{gap:12px}.type-control label{flex-shrink:1}.field-label label{line-height:1.55}}

.coffee-support{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:26px 0 0;padding:22px 24px;border:1px solid var(--line);border-radius:12px;background:#fff}.coffee-support strong{font-size:16px}.coffee-support p{margin:3px 0 0;font-size:13px;color:var(--muted)}.coffee-button{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:11px 18px;border-radius:8px;background:#efc477;color:#111e36;text-decoration:none;font-size:14px;font-weight:600;flex-shrink:0;transition:background .15s}.coffee-button:hover{background:#f5d59c}.coffee-button span{font-size:20px}@media(max-width:720px){.coffee-support{flex-direction:column;align-items:flex-start;padding:18px;gap:14px}.coffee-button{width:100%}}

header{position:sticky;top:0;z-index:20;box-shadow:0 3px 10px #111e3608}.header-actions{display:flex;align-items:center;gap:12px}.header-coffee{font-size:12px;padding:8px 12px;min-height:40px}.header-coffee .coffee-label{font-size:12px}.header-coffee>span:first-child{font-size:20px}@media(max-width:900px){.sidebar{position:sticky;top:0;z-index:30}.workspace header{top:var(--navigation-height,0px)}}@media(max-width:720px){.header-actions{gap:8px}.header-coffee{width:40px;height:40px;min-height:40px;padding:0}.header-coffee .coffee-label{display:none}.breadcrumb{gap:8px;font-size:12px}.language{padding:6px 8px}.language select{max-width:100px}}