.main-nav{gap:24px}.main-nav>a,.nav-tools>summary{font-size:.85rem}.nav-tools{position:relative}.nav-tools>summary{cursor:pointer;list-style:none;white-space:nowrap;display:flex;align-items:center;gap:7px}.nav-tools>summary::-webkit-details-marker{display:none}.nav-tools>summary:after{content:'⌄';font-size:1rem}.nav-tools[open]>summary{color:var(--teal)}.nav-tools-panel{position:absolute;top:36px;right:0;min-width:250px;padding:9px;background:var(--surface);border:1px solid var(--line);border-radius:8px;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:4px}.nav-tools-panel>a{padding:11px 12px;font-size:.9rem;border-radius:4px}.nav-tools-panel>a:hover{background:var(--soft);color:var(--teal)}.portal-entry{white-space:nowrap;gap:10px}
.tools-page,.about-page{padding-block:60px 85px}.tools-page h1,.about-page h1,.portal-page h1{font-size:clamp(2.5rem,4.6vw,4.2rem);line-height:1.13;letter-spacing:-.045em}.tools-intro{font-size:1.12rem;line-height:1.8;margin-top:21px;max-width:730px}.tool-shortcuts{display:flex;gap:10px;flex-wrap:wrap;margin:30px 0 40px}.tool-shortcuts a{padding:11px 16px;border:1px solid var(--line);border-radius:30px;font-size:.9rem;background:var(--surface)}.tool-shortcuts a:hover{border-color:var(--teal);color:var(--teal)}.calculator-card{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:32px;margin-top:24px;scroll-margin-top:120px}.calculator-heading{display:flex;align-items:flex-start;gap:17px;margin-bottom:26px}.calculator-heading h2{font-size:1.8rem;line-height:1.3}.calculator-heading p{margin-top:7px;font-size:1rem}.calculator-body{display:grid;grid-template-columns:1.1fr 1fr;gap:40px}.calculator-fields{display:grid;grid-template-columns:1fr 1fr;gap:22px 18px}.calculator-card label,.portal-card label{font-size:.94rem;display:block}.calculator-card input,.calculator-card select,.calculator-card textarea,.portal-card input{display:block;margin-top:8px;width:100%;min-height:46px;font-size:1rem;line-height:1.5;border:1px solid var(--line);background:var(--bg);color:var(--ink);border-radius:5px;padding:10px 12px}.calculator-card textarea{resize:vertical}.calculator-card small,.input-hint{font-size:.8rem;line-height:1.6;color:var(--muted);display:block;margin-top:6px}.calculator-error{font-size:.9rem;line-height:1.6;color:#b72939;margin-top:13px}.calculator-error:empty{display:none}.calculator-result{align-self:stretch;background:var(--soft);padding:30px;border-radius:9px;display:flex;flex-direction:column;justify-content:center}.calculator-result>span{font-size:.72rem;letter-spacing:.08em;color:var(--muted)}.calculator-result output{display:block;font-family:var(--heading);font-size:2.7rem;line-height:1.3;letter-spacing:-.05em;color:var(--teal);margin:17px 0;overflow-wrap:anywhere}.calculation-note{font-size:.95rem;line-height:1.8}.approximation-note{font-size:.85rem;line-height:1.65;margin-top:15px;border-top:1px solid var(--line);padding-top:12px}.method-note{border-top:1px solid var(--line);padding-top:19px;margin-top:25px}.method-note summary{cursor:pointer;font-size:.9rem;color:var(--teal)}.method-note p{margin-top:15px;line-height:1.8;font-size:.9rem;max-width:950px}.method-note a{text-decoration:underline;text-underline-offset:3px}.descriptive-result{background:var(--soft);border-radius:9px;padding:25px}.descriptive-result dl{display:grid;grid-template-columns:repeat(3,1fr);gap:25px 15px;margin:0 0 24px}.descriptive-result dt{font-size:.8rem;color:var(--muted)}.descriptive-result dd{font-size:1.7rem;color:var(--teal);font-family:var(--heading);margin:7px 0 0;line-height:1.4;overflow-wrap:anywhere}.tools-privacy{font-size:.85rem;line-height:1.7;margin-top:25px;color:var(--muted)}
.about-hero{display:grid;grid-template-columns:1fr 280px;gap:80px;align-items:center;padding:25px 0 65px}.about-hero h1>span{color:var(--teal)}.about-hero p{max-width:710px;font-size:1.15rem;line-height:1.85;margin-top:23px}.about-fingerprint{width:240px;height:355px;background:var(--teal);opacity:.75}.mission-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}.mission-grid section{padding:36px;background:var(--surface);border:1px solid var(--line);border-radius:12px}.mission-grid h2{font-size:1.9rem;line-height:1.3;margin-bottom:24px}.mission-grid p{font-size:1.05rem;line-height:1.9}.about-values{padding:75px 0}.about-values>h2{font-size:2.3rem}.about-values>div{display:grid;grid-template-columns:repeat(3,1fr);gap:36px;margin-top:35px}.about-values article>.icon{color:var(--teal);margin-bottom:15px}.about-values h3{font-size:1.2rem;margin-bottom:10px}.about-values p{font-size:1rem;line-height:1.8}.about-contact{border-top:1px solid var(--line);padding-top:32px;display:flex;align-items:center;justify-content:space-between;gap:25px}.about-contact>p{font-size:1.15rem}
.portal-page{display:grid;grid-template-columns:1fr 1fr;gap:90px;align-items:center;min-height:75vh;padding-block:70px}.portal-intro>p{font-size:1.15rem;line-height:1.8;margin-top:22px}.portal-fingerprint{width:100px;height:150px;background:var(--teal);margin-top:35px}.portal-card{padding:40px;background:var(--surface);border:1px solid var(--line);border-radius:12px}.portal-label{font-size:.72rem;letter-spacing:.12em;color:var(--teal)}.portal-card h2{font-size:2.2rem;margin:12px 0 20px}.portal-status{font-size:.94rem;line-height:1.8;background:var(--soft);border-left:3px solid var(--teal);padding:15px;margin-bottom:25px}.portal-card fieldset{border:0;padding:0;margin:0}.portal-card label{margin-top:20px}.portal-card input:disabled{opacity:.55;cursor:not-allowed}.portal-card button{width:100%;margin-top:25px;cursor:not-allowed}.portal-help{margin-top:23px;font-size:.9rem;line-height:1.8}.portal-help a{color:var(--teal);text-decoration:underline}.portal-card label:first-of-type{margin-top:0}[data-theme=dark] .calculator-error{color:#ff94a0}
@media(max-width:1150px){.main-nav{gap:17px}.main-nav>a,.nav-tools>summary{font-size:.79rem}.portal-entry{font-size:.82rem;padding-inline:13px}.calculator-body{gap:25px}.calculator-card{padding:26px}.calculator-result{padding:25px}.about-hero{gap:35px;grid-template-columns:1fr 180px}.about-fingerprint{width:180px;height:270px}.portal-page{gap:45px}}
@media(max-width:1050px){.nav-tools-panel{position:static;min-width:0;box-shadow:none;background:var(--bg);margin-top:14px}.main-nav>a,.nav-tools>summary{font-size:1rem}.main-nav{gap:23px}.nav-tools{width:100%}.calculator-result output{font-size:2.1rem}.descriptive-result dl{grid-template-columns:1fr 1fr}.mission-grid section{padding:28px}.mission-grid h2{font-size:1.65rem}}
@media(max-width:760px){.tools-page,.about-page{padding-block:40px 60px}.portal-entry{font-size:.74rem;padding:9px 10px;min-height:40px}.portal-entry .icon{display:none}.header-inner{gap:8px}.header-actions{gap:6px}.header-actions>.icon-button{width:34px;height:34px}.header-inner .brand-word{font-size:1.35rem}.header-inner .brand-word small{display:none}.header-inner .brand-fingerprint{width:23px;height:35px}.tools-intro{font-size:1rem}.tool-shortcuts{gap:8px;margin-block:25px 30px}.tool-shortcuts a{font-size:.83rem;padding:10px 13px}.calculator-card{padding:23px}.calculator-heading h2{font-size:1.45rem}.calculator-heading p{font-size:.94rem}.calculator-heading{gap:13px}.calculator-body{grid-template-columns:1fr;gap:25px}.calculator-fields{gap:18px 13px}.calculator-card label{font-size:.88rem}.calculator-result output{font-size:2.5rem}.calculator-result{padding:24px}.descriptive-result dl{grid-template-columns:repeat(3,minmax(0,1fr))}.descriptive-result dd{font-size:1.4rem}.calculation-note{font-size:.9rem}.method-note p{font-size:.85rem}.about-hero{grid-template-columns:1fr;gap:0;padding:0 0 35px}.about-fingerprint{display:none}.about-hero p{font-size:1.05rem}.mission-grid{grid-template-columns:1fr}.mission-grid h2{font-size:1.8rem}.mission-grid p{font-size:1rem}.about-values{padding-block:50px}.about-values>h2{font-size:2rem}.about-values>div{grid-template-columns:1fr 1fr;gap:28px}.about-values h3{font-size:1.05rem}.about-values p{font-size:.9rem}.about-contact{align-items:flex-start;flex-direction:column}.portal-page{grid-template-columns:1fr;gap:30px;padding-block:42px 60px}.portal-fingerprint{display:none}.portal-card{padding:28px}.portal-intro>p{font-size:1rem}}
@media(max-width:380px){.header-inner .brand-word{font-size:1.12rem}.header-inner .brand{gap:5px}.header-inner .brand-fingerprint{width:19px;height:29px}.portal-entry{font-size:.68rem;padding-inline:7px}.header-actions{gap:5px}.header-actions>.icon-button{width:31px;height:31px}.calculator-fields{grid-template-columns:1fr}.calculator-card{padding:20px}.calculator-heading{gap:10px}.calculator-heading h2{font-size:1.3rem}.calculator-heading .service-icon{width:34px;height:34px;flex-shrink:0}.descriptive-result dl{grid-template-columns:1fr 1fr}.about-values>div{grid-template-columns:1fr}.portal-card{padding:24px}}