@charset "UTF-8";
@font-face{font-family:Roboto;src:url('/assets/fonts/roboto-300.woff2') format('woff2');font-style:normal;font-weight:100 900;font-display:swap}
@font-face{font-family:Rajdhani;src:url('/assets/fonts/rajdhani-500.woff2') format('woff2');font-style:normal;font-weight:500;font-display:swap}
:root{--bg:#000;--panel:#101010;--line:#303030;--text:#fff;--muted:#b5b5b5;--yellow:#ffd000;--ink:#000;--max:1280px;color-scheme:dark;font-family:Roboto,Arial,sans-serif;font-synthesis:none}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:95px}body{margin:0;background:var(--bg);color:var(--text);font-size:18px;font-weight:300;line-height:1.55}a{color:inherit;text-decoration:none}button,input,select{font:inherit}button,a,summary{touch-action:manipulation}button{cursor:pointer}img,svg{max-width:100%}p{margin:0 0 24px}h1,h2,h3{font-weight:300;line-height:1.15;letter-spacing:0;margin:0 0 30px}h1{font-size:clamp(48px,6vw,80px);font-weight:400}h2{font-size:clamp(40px,5.5vw,72px)}h3{font-size:30px}small,.small{font-size:13px;line-height:1.65;color:var(--muted)}[hidden]{display:none!important}a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible{outline:2px solid var(--yellow);outline-offset:6px}button,input,select{border-radius:0}input[type=checkbox]{accent-color:var(--yellow);width:18px;height:18px;flex-shrink:0}summary{cursor:pointer}a:hover{color:var(--yellow)}.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
/* Quiet navigation over an uninterrupted photographic opening. */
.skip{position:fixed;top:0;left:20px;z-index:30;padding:12px;background:var(--yellow);color:#000;transform:translateY(-150%)}.skip:focus{transform:none}.site-header{position:absolute;inset:0 0 auto;z-index:10;background:linear-gradient(#000d,transparent);border:0}.nav-inner{height:82px;margin:auto;padding:0 5.6%;display:flex;align-items:center;gap:38px;max-width:1700px}.brand{display:flex;align-items:center;gap:10px;font-size:27px;letter-spacing:1px;font-weight:500;line-height:1;text-transform:uppercase;flex-shrink:0}.brand svg{width:34px;height:34px;fill:none;stroke:var(--yellow);stroke-width:2.5}.brand-id{font-weight:300}.brand small{display:block;font-family:Rajdhani,sans-serif;font-size:8px;letter-spacing:2px;line-height:1.5;color:#aaa;margin-top:5px}.site-header nav{margin-left:auto;display:flex;gap:30px;font-size:15px;font-weight:400}.nav-cta{display:flex;align-items:center;gap:15px;font-size:15px;padding-left:26px;border-left:1px solid #ffffff33;white-space:nowrap}.nav-cta span{order:-1;display:grid;place-items:center;width:36px;height:36px;background:#ffffff12;font-size:22px}.menu-button{display:none;border:0;background:none;color:#fff;margin-left:auto;padding:10px}.menu-button span{margin-left:10px}.inner-page .site-header{background:#000}
.eyebrow{font-family:Rajdhani,Arial,sans-serif;font-weight:500;font-size:16px;line-height:1.3;text-transform:uppercase;color:#aaa;letter-spacing:0;margin-bottom:32px}.hero{position:relative;isolation:isolate;min-height:760px;height:100svh;max-height:1100px;padding:190px 5.6% 100px;display:flex;align-items:center;overflow:hidden}.hero>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;object-position:center;z-index:-3}.hero-shade{position:absolute;inset:0;z-index:-2;background:linear-gradient(90deg,#0005,transparent 75%),linear-gradient(0deg,#000 0%,transparent 25%,#0001 80%)}.hero-content{width:100%}.hero .eyebrow{margin-bottom:105px;color:#bcbcbc}.hero h1{font-size:clamp(62px,6.5vw,88px);font-weight:400;max-width:750px;line-height:1.08;margin-bottom:42px}.hero-content>p:not(.eyebrow){font-size:24px;max-width:620px;line-height:1.45;color:#e2e2e2;margin-bottom:28px}.hero-actions{display:flex;align-items:center;gap:25px}.hero-foot{position:absolute;bottom:26px;left:5.6%;right:5.6%;display:flex;align-items:center;justify-content:space-between;font-family:Rajdhani,sans-serif;font-size:12px;color:#a9a9a9;letter-spacing:.4px}.hero-foot>a{font-family:Roboto,sans-serif;font-size:27px}.hero-foot>span:last-child{font-size:10px}
/* CERBAIR's compact square arrow and separate text, adapted to RID controls. */
.text-link,.button{display:inline-flex;align-items:center;justify-content:flex-start;gap:17px;background:transparent;border:0;padding:0;color:#fff;font-size:16px;font-weight:300;line-height:1.35;min-height:42px;text-align:left}.text-link:before,.button:before{content:'↗';display:grid;place-items:center;flex-shrink:0;width:40px;height:40px;background:var(--yellow);color:#000;font-family:Arial,sans-serif;font-size:27px;line-height:1;transition:background .2s,transform .2s}.text-link>span,.button>span{display:none}.text-link:hover:before,.button:hover:before{background:#fff;transform:translate(2px,-2px)}.button.yellow{background:transparent;color:#fff}.section{max-width:calc(var(--max) + 150px);margin:auto;padding:110px 5.6%}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:40px;margin-bottom:60px}.section-heading h2{margin-bottom:28px}.section-heading p:not(.eyebrow){font-size:20px;max-width:650px;color:var(--muted)}.introduction{display:grid;grid-template-columns:1.5fr 1fr;align-items:end;gap:8%;padding-top:150px;padding-bottom:140px;position:relative;isolation:isolate}.introduction:after{content:'';position:absolute;right:0;top:5%;width:45%;height:80%;z-index:-1;background:linear-gradient(150deg,transparent 35%,#141414 35.1%,#000 52%);opacity:.65}.introduction h2{max-width:800px}.introduction p:not(.eyebrow){font-size:20px;color:#c4c4c4;max-width:580px}.introduction .text-link{justify-self:center;margin-bottom:24px}.essentials{padding-top:80px;padding-bottom:130px}.guide-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:32px}.guide-card{display:block;border-bottom:1px solid var(--line);min-width:0;padding-bottom:27px;transition:border-color .2s}.guide-card:hover{border-color:var(--yellow)}.card-art{height:210px;position:relative;display:grid;place-items:center;background:radial-gradient(ellipse at 50% 65%,#222,transparent 68%);overflow:hidden}.line-icon{width:115px;height:115px;color:#ddd;stroke-width:1}.card-arrow{position:absolute;bottom:12px;right:0;width:34px;height:34px;display:grid;place-items:center;color:#000;background:var(--yellow);font-size:23px}.card-copy{padding:25px 0 0}.card-copy .eyebrow{font-size:13px;margin-bottom:17px;color:#929292}.card-copy h3{font-size:29px;line-height:1.23;margin-bottom:16px}.card-copy>p:last-child{color:var(--muted);font-size:16px;line-height:1.55;margin:0}.essentials .card-copy .eyebrow{display:none}
/* Broad image-led chapters replace the previous green dashboard panels. */
.visual-chapter{position:relative;isolation:isolate;min-height:680px;display:flex;align-items:center;padding:105px 5.6%;overflow:hidden}.visual-chapter>img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-3}.chapter-rules>img{object-position:65% 50%;filter:saturate(.45)}.chapter-shade{position:absolute;inset:0;z-index:-2;background:linear-gradient(90deg,#000c,#0005 70%),linear-gradient(0deg,#0007,transparent)}.chapter-content{max-width:750px}.chapter-content h2{font-size:clamp(45px,5.6vw,76px);margin-bottom:32px}.chapter-content>p:not(.eyebrow){max-width:560px;font-size:20px;color:#d0d0d0;margin-bottom:30px}.chapter-content .eyebrow{color:#d0d0d0}.chapter-content .small{font-size:12px!important;max-width:470px!important;margin:25px 0 0!important}.chapter-registration{background:#080808;min-height:640px}.id-art{position:absolute;right:0;top:0;bottom:0;width:55%;display:grid;place-items:center;z-index:-1;overflow:hidden;background:radial-gradient(ellipse,#181818,transparent 65%)}.id-orbit{position:absolute;width:340px;height:340px;border:1px solid #383838;transform:rotate(-25deg) skewY(12deg);border-radius:50%}.orbit-two{width:500px;height:500px;border-color:#252525}.orbit-three{width:680px;height:680px;border-color:#151515}.id-core{background:#0a0a0a;transform:rotate(-8deg);padding:35px 44px;border:1px solid #333;box-shadow:0 30px 60px #000}.id-core span{font-size:75px;letter-spacing:8px;font-weight:300;color:#ddd}.id-core i{display:block;margin:15px 0;height:25px;background:repeating-linear-gradient(90deg,#555 0 1px,transparent 1px 6px)}.id-core small{display:block;font-family:Rajdhani,sans-serif;font-size:13px}.chapter-layer>img{object-position:center 25%;filter:grayscale(.65)}.chapter-layer .chapter-shade{background:linear-gradient(90deg,#000e,#0007 80%)}
.finder-section{display:grid;grid-template-columns:1fr 1fr;gap:10%;padding-top:150px;padding-bottom:130px}.finder-intro h2{font-size:clamp(44px,5vw,68px)}.finder-intro>p:not(.eyebrow){color:var(--muted);max-width:430px;font-size:20px}.finder-intro>.small{font-size:13px!important;margin-top:32px}.finder-panel{border-top:1px solid #555;padding-top:25px}.finder-panel label{display:block;font-family:Rajdhani,sans-serif;font-size:15px;margin-bottom:10px;text-transform:uppercase;color:#bbb}.finder-panel select{width:100%;background:#111;color:#fff;border:1px solid #424242;padding:15px 13px;margin-bottom:24px;font-size:16px}.finder-panel .check-label{display:flex;align-items:flex-start;gap:13px;font-family:Roboto,sans-serif;text-transform:none;font-size:14px;line-height:1.5}.finder-panel .button{margin-top:20px}.finder-panel details{border-top:1px solid var(--line);padding-top:18px;font-size:13px;color:var(--muted)}.finder-panel details p{margin:15px 0}.finder-panel details a{color:var(--yellow);text-decoration:underline}#date-result{border-left:2px solid var(--yellow);padding-left:22px;margin:35px 0}#date-result h3{font-size:29px;margin:13px 0}#date-result p{font-size:15px;color:#bbb}#date-result a{font-size:14px;text-decoration:underline}#date-result .eyebrow{font-size:12px}#date-result:focus{outline:none}
.questions{display:grid;grid-template-columns:1fr 1.15fr;gap:10%;border-top:1px solid #1c1c1c}.question-list>a{display:flex;justify-content:space-between;align-items:center;gap:20px;border-bottom:1px solid var(--line);padding:25px 0;font-size:22px;line-height:1.4}.question-list>a>span:last-child{color:var(--yellow);font-size:25px}.resource-section{padding-top:0;padding-bottom:60px}.source-banner{padding:130px 5.6%;background:linear-gradient(130deg,#0b0b0b,#000);display:grid;grid-template-columns:1.4fr 1fr;gap:8%;align-items:end}.source-banner h2{font-size:clamp(48px,5.8vw,80px)}.source-banner p:not(.eyebrow){color:var(--muted);font-size:20px}.source-banner>.text-link{justify-self:center;margin-bottom:30px}
footer{background:#080808;padding:70px 5.6% 35px;border-top:1px solid #171717}.footer-top{max-width:var(--max);margin:auto;display:grid;grid-template-columns:1fr 1fr 1fr;gap:40px}.footer-top>.brand{align-self:start}.footer-top>p{font-size:24px;color:#aaa}.footer-top>div{display:grid;gap:10px;font-size:15px;justify-self:end}.footer-bottom{max-width:var(--max);margin:60px auto 0;display:flex;justify-content:space-between;gap:40px;border-top:1px solid var(--line);padding-top:28px;color:#858585;font-size:11px}.footer-bottom p{margin:0}.footer-bottom>p:last-child{text-align:right}
/* The same typography and restraint across the knowledge library. */
.page-hero,.article-hero{padding-top:190px;padding-bottom:65px}.page-hero h1{max-width:1040px}.page-hero>p:not(.eyebrow),.article-answer{max-width:780px;color:#bcbcbc;font-size:23px}.page-hero{border-bottom:1px solid #232323}.article-hero h1{font-size:clamp(40px,5.5vw,72px);max-width:1050px;font-weight:300}.review-note{font-size:13px;color:#999;margin-top:30px}.breadcrumbs,.breadcrumb{display:flex;flex-wrap:wrap;gap:12px;color:#929292;font-size:13px;margin-bottom:35px}.article-layout{padding-top:20px;display:grid;grid-template-columns:minmax(0,780px) minmax(180px,260px);gap:8%}.article-body h2{font-size:34px;margin:48px 0 22px}.article-body>h2:first-child{margin-top:0}.article-body p,.article-body li{color:#c3c3c3;line-height:1.7}.article-body a:not(.button){color:var(--yellow);text-decoration:underline;text-underline-offset:4px}.article-body ul{padding-left:22px}.article-layout aside{align-self:start;border-top:1px solid var(--line);padding-top:25px}.article-layout aside>a{display:flex;justify-content:space-between;gap:15px;border-bottom:1px solid var(--line);padding:22px 0;font-size:16px}.article-layout aside>a span{color:var(--yellow)}.article-layout aside .small{margin-top:24px}.contents{border-block:1px solid var(--line);padding:24px 0;margin-bottom:40px;display:flex;flex-wrap:wrap;gap:12px 24px}.contents .eyebrow{width:100%;font-size:13px;margin:0}.contents a{font-size:14px;text-decoration:none!important}.article-body details{border-block:1px solid var(--line);padding:20px 0;margin:30px 0}.article-body details p{margin:18px 0 0}.article-body summary{font-size:18px}.source-note{border-top:1px solid var(--line);margin-top:60px;padding-top:15px;font-size:14px}.source-note h2{font-size:26px}.source-note li{margin-bottom:15px}.source-note p{font-size:13px}.source-note .small{font-size:12px}.table-wrap{overflow:auto;margin:35px 0}table{border-collapse:collapse;width:100%;font-size:15px}caption{text-align:left;color:#999;font-size:13px;padding-bottom:16px}th,td{padding:18px 15px;vertical-align:top;text-align:left;border:1px solid #333}th{background:#111;font-weight:400;color:#eee}td:last-child{min-width:135px}.steps{list-style:none;padding:0;counter-reset:steps}.steps li{position:relative;padding:0 0 25px 55px;border-bottom:1px solid var(--line);counter-increment:steps}.steps li:before{content:'0' counter(steps);position:absolute;left:0;top:5px;color:var(--yellow);font-family:Rajdhani,sans-serif;font-size:20px}.steps h2{font-size:30px}.notice,.promotion{border-left:2px solid var(--yellow);padding:25px;background:#111;margin:30px 0;font-size:16px;max-width:850px}.promotion h2{margin-top:0}.id-example{display:flex;flex-wrap:wrap;gap:10px;padding:28px;margin:30px 0;background:#111;font-family:monospace;font-size:19px}.id-example>span{background:#222;padding:8px 16px}.id-example .private{color:var(--yellow)}.id-example small{width:100%;font-size:11px}.flow{display:flex;justify-content:space-between;align-items:center;gap:12px;text-align:center;font-size:13px;border-block:1px solid #333;padding:28px 10px;margin:30px 0}.flow b,.flow i{color:var(--yellow);font-weight:400;font-style:normal}.compare{display:grid;grid-template-columns:1fr 1fr;gap:25px}.compare>div{border:1px solid var(--line);padding:25px}.compare h2{font-size:27px;margin-top:0}.about-body{max-width:980px}.source-list li{border-bottom:1px solid var(--line);padding:16px 0}
.search-label{display:block;font-size:16px;margin-top:45px}.search{display:block;width:100%;max-width:740px;background:#111;color:#fff;border:1px solid #454545;padding:18px;margin-top:16px}.search::placeholder{color:#999}.topic-filters{display:flex;flex-wrap:wrap;gap:9px;margin-top:25px}.topic-filters button{padding:10px 14px;background:#000;color:#ddd;border:1px solid #333;font-size:13px}.topic-filters button[aria-pressed=true]{background:var(--yellow);color:#000;border-color:var(--yellow)}#search-count{font-size:13px;margin-top:18px;color:#999}.library{padding-top:55px}.library .guide-grid{row-gap:45px}.library .card-art{height:140px;place-items:center start}.library .line-icon{width:85px;height:85px}.library .card-copy h3{font-size:27px}.library .card-copy .eyebrow{font-size:12px}.library .card-art{background:none}.library .card-arrow{bottom:25px}.topic-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:40px}.topic-card{position:relative;padding:24px 0;border-top:1px solid var(--line)}.topic-card .line-icon{width:65px;height:65px;margin-bottom:25px;display:block}.topic-card .eyebrow{font-size:12px;display:block;margin-bottom:16px}.topic-card h3{font-size:28px;margin-bottom:18px}.topic-card p:not(.eyebrow){font-size:16px;color:#aaa}.topic-arrow{position:absolute;top:30px;right:0;color:var(--yellow)}.resource-links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:30px;margin-top:35px}.resource-links>a{border-top:1px solid #333;padding:25px 0;font-size:19px}.resource-links span{display:block;color:#888;font-family:Rajdhani,sans-serif;font-size:13px;margin-bottom:12px}.service-grid{display:grid;grid-template-columns:1fr 1fr;gap:45px 65px}.service-card{border-top:1px solid #333;padding:30px 0;display:flex;flex-direction:column}.service-card h2{font-size:36px}.service-card .eyebrow{font-size:14px;margin-bottom:24px}.service-card p:not(.eyebrow){font-size:18px;color:#aaa}.service-card>a{margin-top:auto;color:var(--yellow);font-size:16px}.glossary{display:grid;grid-template-columns:1fr 1fr;gap:40px 70px;margin:0}.glossary>div{border-top:1px solid #333;padding-top:25px}.glossary dt{font-size:28px;margin-bottom:18px}.glossary dd{font-size:17px;color:#aaa;margin:0}.glossary a{display:block;color:var(--yellow);font-size:14px;margin-top:14px}.faq-list{max-width:1100px}.faq-list details{border-top:1px solid #333;padding:28px 0}.faq-list summary{font-size:27px;line-height:1.4}.faq-list details p{margin-top:20px;color:#bbb}.faq-list details a{font-size:16px;color:var(--yellow)}.faq-list>.small{margin-top:30px}.flight-checks{border-top:1px solid #333;margin-bottom:30px}.flight-checks label{display:flex;align-items:flex-start;gap:15px;padding:20px 0;border-bottom:1px solid #333;color:#bbb;font-size:17px}.flight-checks input{margin-top:4px}.checklist li{padding:7px 0}#no-results a{color:var(--yellow);text-decoration:underline}
@media(min-width:1700px){.hero{padding-left:max(5.6%,calc((100vw - 1450px)/2))}.hero h1{font-size:96px}}
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