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.unlock{max-width:440px;margin:62px auto 68px;padding:0 24px}.unlock h1{font-size:1.6rem;margin-bottom:12px}.unlock .intro{font-size:1rem;color:var(--muted)}.unlock-form{background:white;border:1px solid var(--line);border-radius:4px;padding:26px;margin-top:23px}.unlock-form label{display:block;font-weight:700;font-size:.9375rem;margin-bottom:12px}.unlock-form input[type=password]{display:block;width:100%;height:54px;padding:10px 16px;border:1px solid #8294a6;border-radius:3px;background:white;text-align:center;font-size:1.6rem;letter-spacing:.3em}.unlock-form .button{width:100%;margin-top:20px}.form-error{color:var(--red);font-size:.9375rem;margin:12px 0 0;line-height:1.5}.form-error:empty{display:none}.unlock-foot{font-size:.875rem;color:var(--muted);margin-top:18px;line-height:1.5}.portal-heading{display:flex;align-items:center;justify-content:space-between;gap:20px;margin:20px 0 26px}.portal-heading p{color:var(--muted);margin-bottom:0}.eyebrow{font-size:.875rem;color:var(--muted);font-weight:400;letter-spacing:normal;margin-bottom:10px}.accounts-layout{display:grid;grid-template-columns:330px minmax(0,1fr);gap:26px;align-items:start}.account-form,.account-list{padding:24px;background:white;border:1px solid var(--line);border-radius:4px;min-width:0}.account-form label{display:block;font-weight:700;font-size:.9375rem;margin:19px 0 9px}.account-form input{width:100%;min-height:46px;padding:10px 12px;border:1px solid #8e9ba9;border-radius:3px;background:white;color:#202b36}.account-form p,.account-list p{font-size:.875rem;color:var(--muted)}.account-form p{margin-top:8px}.account-list article{display:flex;justify-content:space-between;align-items:center;gap:20px;padding:19px 0;border-bottom:1px solid var(--line)}.account-list article:last-child{border:0}.account-list h3{overflow-wrap:anywhere}.account-list p{margin:5px 0 0}.account-actions{display:flex;gap:12px;flex-wrap:wrap;align-items:center;flex-shrink:0}.account-message{background:#eff7f1;border:1px solid #abc9b4;border-radius:4px;padding:20px 24px;margin-bottom:24px}.account-message p:last-child{margin-bottom:0}.issued-pin{font-size:1.7rem;font-weight:700;letter-spacing:.12em}.account-form .form-error{color:var(--red)}
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#booklet-dialog{width:min(1080px,96vw);height:94vh;height:94dvh;background:#edf0f3;overflow:hidden}#booklet-dialog[open]{display:flex;flex-direction:column}.reader-header{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-shrink:0;padding:17px 23px;background:var(--navy);color:white}.reader-header p{font-size:.875rem;font-weight:400;color:#d4dde8;margin:0 0 5px;letter-spacing:normal}.reader-header h2{font-size:1.15rem;line-height:1.4;margin:0}.reader-header>.button{flex-shrink:0}.reader-tools{display:flex;align-items:center;gap:16px;flex-wrap:wrap;padding:12px 22px;background:white;border-bottom:1px solid var(--line);flex-shrink:0}.reader-page-label{display:flex;align-items:center;gap:10px;font-weight:700;font-size:.9375rem;flex:1;min-width:0}.reader-page-label select{width:100%;min-width:0;max-width:100%;min-height:44px;padding:8px;border:1px solid #9daab7;border-radius:3px;background:white;color:#202b36;font-size:.9375rem}.reader-view{display:flex;border:1px 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span{min-width:92px;text-align:center}.reader-paper{max-width:840px;margin:auto;background:white;border:1px solid var(--line);padding:32px 42px;font-size:1.125rem;line-height:1.7;overflow-wrap:break-word}.reader-paper.reader-size-1{font-size:1.375rem}.reader-paper.reader-size-2{font-size:1.625rem}.reader-paper p{line-height:1.7;margin-bottom:1em}.reader-paper .reader-page-number{font-size:.875rem;font-weight:400;color:var(--muted);letter-spacing:normal;margin-bottom:10px}.reader-paper h2{font-size:1.35em;line-height:1.35;margin-bottom:1em}.reader-paper h3{font-size:1.1em;line-height:1.4;margin:1.5em 0 .7em;padding-bottom:.4em;border-bottom:1px solid var(--line)}.reader-paper ul{padding-left:1.35em;margin:0 0 1.25em}.reader-paper li{margin-bottom:.6em}.reader-table{max-width:100%;overflow-x:auto;margin:1.25em 0;border:1px solid #b9c3ce}.reader-table table{border-collapse:collapse;min-width:100%;font-size:.94em;line-height:1.55;text-align:left}.reader-table th,.reader-table 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/* Airside Academy: the study engine and protected source imagery are unchanged. */
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.quiz-aside{background:#fdfefb;border:1px solid var(--line);border-radius:10px;padding:17px 14px}.question-list{border:0;margin:0;background:none}.question-list summary{font-size:13px;font-weight:600;cursor:pointer;min-height:44px;padding:5px 0 12px}.question-list summary span{display:block;font-size:10px;font-weight:400;color:var(--muted);margin-top:5px}.question-list-body{padding:8px 0 0}.question-map{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:6px;max-height:510px;overflow:auto;padding:3px 2px 6px}.question-map button{min-width:0;min-height:44px;background:#fff;border:1px solid #d6e2d6;border-radius:5px;font-size:11px;color:#5d7464;display:flex;align-items:center;justify-content:center;gap:2px;padding:3px}.question-map button small{font-size:9px}.question-map .right{background:#e8f3e9;border-color:#b9d4bd;color:#326f44}.question-map .wrong{background:#fff0e9;border-color:#e2b8a3;color:#915438}.question-map .current{outline:2px solid var(--navy);outline-offset:0;border-color:var(--navy);font-weight:700}.question-map .current:not(.right):not(.wrong){background:var(--navy);color:white}.legend{display:flex;gap:11px;font-size:10px;color:var(--muted);margin-top:12px}.keyboard-note{font-size:10px;color:var(--muted);line-height:1.7;margin-top:15px}.quiz-aside .small-note{font-size:11px}
.results-panel{background:#fff;border:1px solid var(--line);border-radius:12px;padding:29px;margin-bottom:23px}.results-panel .section-heading h2{font-size:24px}.result-metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:26px 0;padding:0;border:0}.result-metrics>div{border-left:1px solid var(--line);padding:5px 25px}.result-metrics>div:first-child{border:0;padding-left:0}.result-metrics span{color:var(--muted);font-size:11px;display:block}.result-metrics strong{font-size:37px;font-weight:500;display:block;margin-top:6px;letter-spacing:-.04em}.result-metrics strong small{font-size:18px;color:var(--muted);font-weight:400}.result-status{font-size:12px;padding:9px 13px;border-radius:5px;background:#f5eedc;border:1px solid #e4d6b4;color:#775e26;margin-bottom:20px}.result-status.passed{background:#e8f4e9;border-color:#c4ddc6;color:#316840}.result-actions{display:flex;gap:11px;flex-wrap:wrap}.results-topics,.missed-review,.essentials-panel{background:#fff;border:1px solid var(--line);border-radius:12px;padding:26px;margin-top:23px}.results-topics h2,.missed-review h2{font-size:20px;margin:0 0 20px}.results-topics table{width:100%;border-collapse:collapse;font-size:13px}.results-topics th,.results-topics td{padding:12px 5px;border-bottom:1px solid #e7eee5;text-align:left}.results-topics th{font-weight:500}.results-topics thead th{font-size:11px;color:var(--muted)}.results-topics td{text-align:right}.answer-review details{background:#fff;border:1px solid var(--line);border-radius:7px;overflow:hidden;margin:11px 0}.answer-review summary{padding:18px;font-size:14px;line-height:1.6;cursor:pointer;min-height:44px}.review-body{padding:0 20px 22px;font-size:14px}.review-body p{line-height:1.75}.review-body li{padding:7px 2px}.right-answer{color:#31623e}.your-answer{color:#824d36}
.save-status{max-width:none;margin:0 0 0 230px;padding:9px 38px;min-height:0;font-size:11px;background:#f5f6f2;color:#557363;display:flex;align-items:center;justify-content:flex-end;gap:14px}.save-status:empty{display:none}.save-warning{background:#fff3d6;color:#75571d;border-bottom:1px solid #e8d4a7}.save-status a,.save-status button{min-height:44px;display:inline-flex;align-items:center}.loading,.error-panel,.account-panel{max-width:1000px;margin:35px auto;padding:30px;border:1px solid var(--line);border-radius:10px;background:#fff}.error-panel h1{font-size:27px}.form-error{color:#9b3f30;font-size:12px;min-height:0}.form-error:empty{display:none}.user-form input,.user-form select,#create-user input{border:1px solid #bdcfc1;border-radius:6px;min-height:45px;padding:10px;max-width:100%}.user-list{overflow-x:auto}.account-panel button{min-height:44px}.site-footer{margin:0;max-width:none;background:var(--paper);border-top:1px solid var(--line);font-size:10px;color:#6b7c7c;padding:18px 30px;display:flex;justify-content:space-between;gap:25px;line-height:1.7}.signed-in .site-footer{padding-left:269px}.site-footer span{white-space:nowrap}
.signin-layout{display:grid;grid-template-columns:1.15fr 1fr;min-height:calc(100vh - 62px)}.signin-story{position:relative;background:var(--navy);color:white;overflow:hidden;padding:44px 60px;display:flex;flex-direction:column;justify-content:space-between;min-height:680px}.signin-story>img{position:relative;z-index:1}.signin-story .runway-art{width:370px;height:520px;right:-40px;bottom:-55px;opacity:.18;transform:rotate(32deg)}.signin-story .runway-art:before{left:110px;width:137px}.signin-story .runway-art:after{left:177px}.story-copy{position:relative;max-width:430px;margin:90px 0}.story-copy .eyebrow{color:var(--mint);font-size:11px;margin:0 0 25px}.story-copy h1{font-size:56px;line-height:1.12;letter-spacing:-.055em;font-weight:500;margin:0}.story-copy>p:last-child{font-size:16px;line-height:1.8;color:#b2cbd2;max-width:342px;margin-top:25px}.story-bottom{position:relative;font-size:10px;color:#9bbac1;letter-spacing:.08em;margin:0}.signin-form-wrap{display:flex;align-items:center;justify-content:center;padding:52px;background:#fafbf8}.unlock{width:100%;max-width:365px;margin:0;padding:0;border:0;background:none;box-shadow:none}.unlock h2{font-size:34px;font-weight:600;margin:14px 0}.unlock .intro{font-size:14px;line-height:1.8;color:var(--muted);margin:0 0 31px}.unlock-form{display:flex;flex-direction:column;gap:0}.unlock-form label{font-size:12px;font-weight:600;margin-bottom:10px}.unlock-form input#pin{height:57px;border:1px solid #b9cdbf;border-radius:7px;background:white;width:100%;font-size:24px;letter-spacing:18px;padding:8px 10px 8px 27px;text-align:center;color:var(--ink)}.unlock-form .button{width:100%;min-height:49px;margin-top:18px}.unlock .unlock-foot{font-size:11px;color:var(--muted);margin:13px 0 29px}.signin-help{border-top:1px solid var(--line);padding-top:25px;font-size:12px}.signin-help strong{font-weight:600}.signin-help p{font-size:12px;color:var(--muted);margin:7px 0 0}.available-courses{display:flex;flex-wrap:wrap;gap:7px;margin-top:35px}.available-courses span{font-size:9px;border:1px solid var(--line);border-radius:4px;padding:6px 7px;color:#4d6762}.signed-out .site-footer{font-size:9px}
dialog{border:1px solid var(--line);border-radius:12px;box-shadow:0 18px 75px #102d3a38;background:var(--paper);color:var(--ink)}dialog::backdrop{background:#0e273ac2}.dialog-bar,.reader-bar{background:var(--navy);color:#fff;border:0;padding:15px 20px}.dialog-bar .button,.reader-bar .button{background:#fff;color:var(--ink)}.reader-toolbar{background:#fff;border-color:var(--line);padding:14px 20px;gap:10px}.reader-toolbar button,.reader-toolbar select,.reader-toolbar input{min-height:44px}.reader-scroll{background:#f0f3ee}.reader-page,.reader-text{font-family:inherit;line-height:1.8}.reader-text h2{letter-spacing:-.02em}.reader-table{overflow-x:auto}.reader-mode[aria-pressed=true],.reader-toolbar [aria-pressed=true]{background:var(--accent);color:#fff}.reader-footer{padding:15px 20px;background:#fff;border-top:1px solid var(--line)}.reader-footer button{min-height:44px}.image-scroll{background:#eff2ec}.modal-open{overflow:hidden}
@media(min-width:1500px){.learning-content{padding-top:42px}.resume-card{min-height:295px}.resume-card h2{font-size:34px}}
@media(max-width:1180px){.learning-layout{grid-template-columns:205px minmax(0,1fr)}.airside-brand{width:205px;flex-basis:205px;padding-left:24px}.learning-sidebar{padding-left:15px;padding-right:15px}.learning-content{padding:28px}.dashboard-grid{grid-template-columns:minmax(0,1.45fr) minmax(240px,1fr);gap:18px}.resume-card{padding:25px}.resume-card h2{font-size:28px}.question-layout{grid-template-columns:minmax(0,1fr) 190px;gap:18px}.question-card{padding:23px}.question-bottom{margin:23px -23px -23px;padding:16px 23px}.save-status{margin-left:205px}.signed-in .site-footer{padding-left:233px}.practice-option{padding:16px}.mode-kicker{display:block}.mode-kicker span:last-child{display:block;margin-top:5px}.story-copy h1{font-size:49px}.signin-story{padding:38px}.signin-form-wrap{padding:40px}}
@media(max-width:850px){.site-header{height:73px;background:var(--navy);color:#fff}.airside-brand{height:73px;flex-basis:auto;width:auto;padding:0 24px}.airside-brand img{width:131px}.header-label{display:none}.header-account{padding:0 20px;color:#d6e7eb;gap:8px}.header-account .text-button{color:#d5eee1}.learning-layout{display:block}.learning-sidebar{padding:9px 21px;background:#e7ede6;border-bottom:1px solid #d3ddd1}.sidebar-label,.sidebar-note{display:none}.learning-sidebar nav{display:flex;gap:3px;flex-wrap:wrap}.learning-sidebar nav button{color:#496557;font-size:11px;min-height:44px;padding:8px 12px;gap:7px}.learning-sidebar nav button span{color:inherit;font-size:14px}.learning-sidebar nav button:hover,.learning-sidebar nav button.nav-active{background:#fff;color:var(--ink)}.learning-content{padding:26px}.question-layout{grid-template-columns:minmax(0,1fr)}.quiz-aside{grid-row:1;padding:9px 16px}.question-card{grid-row:2}.question-list summary{display:flex;align-items:center;justify-content:space-between;padding:0;min-height:44px}.question-list summary:before{content:'＋';font-size:17px;margin-right:10px}.question-list[open] summary:before{content:'−'}.question-list summary span{display:inline;margin:0;font-size:11px;font-weight:400}.question-list-body{padding-top:14px}.question-map{grid-template-columns:repeat(auto-fill,minmax(44px,1fr));max-height:265px;gap:7px}.keyboard-note{display:none}.save-status{margin-left:0;padding:8px 24px;font-size:11px;flex-wrap:wrap;justify-content:flex-start}.signed-in .site-footer{padding-left:26px}.signin-story{min-height:680px;padding:32px}.story-copy h1{font-size:43px}.signin-form-wrap{padding:31px}.unlock h2{font-size:29px}}
@media(max-width:640px){.header-account .account-name{max-width:75px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:11px}.site-header{height:67px}.airside-brand{height:67px;padding:0 19px}.header-account{padding:0 10px}.header-account .text-button{padding:10px;font-size:11px}.learning-sidebar{padding:7px 12px}.learning-sidebar nav button{font-size:10px;padding:8px 9px;gap:5px}.learning-sidebar nav button span{display:none}.learning-content{padding:21px 19px 28px}.page-heading{align-items:flex-start;margin-bottom:23px;gap:12px}.page-heading h1{font-size:29px;line-height:1.28}.page-heading p{font-size:12px}.page-heading>.button{font-size:11px;max-width:100px;flex-shrink:0;min-width:0;padding:10px}.breadcrumb{margin-bottom:13px}.course-list{grid-template-columns:1fr;gap:17px}.course-row{padding:23px;gap:17px}.course-name h2{font-size:24px}.course-code{margin-bottom:18px}.course-entry{padding-top:18px}.dashboard-grid{display:flex;flex-direction:column;gap:19px}.dashboard-grid>section{width:100%}.resume-card{order:1;min-height:275px;padding:25px}.resume-card h2{font-size:29px}.resume-card .button{width:100%;margin-top:2px}.resume-card .resume-count{margin-top:23px;font-size:11px}.booklet-panel{order:2;padding:21px}.practice-panel{order:3}.record-panel{order:4;padding:22px}.practice-grid{grid-template-columns:1fr 1fr;gap:11px}.practice-option{padding:15px 13px}.practice-option h3{font-size:14px;line-height:1.4}.practice-option>p{font-size:11px}.mode-kicker{font-size:9px;margin-bottom:12px}.mode-actions .button{font-size:11px;padding:10px}.mode-actions .text-button{font-size:10px}.booklet-heading{margin:16px 0}.booklet-heading h2{font-size:17px}.section-heading h2{font-size:19px}.section-heading p{font-size:11px}.test-heading{gap:12px;margin-bottom:18px}.test-heading h1,.test-heading h2{font-size:21px;line-height:1.4}.test-heading .text-button{font-size:11px;padding:9px 11px}.test-course{font-size:10px}.progress{margin-bottom:18px}.test-progress{font-size:10px}.question-layout{gap:15px}.question-card{padding:21px 18px}.question-meta{font-size:10px;margin-bottom:20px;gap:8px;flex-wrap:wrap}.question-title{font-size:22px;line-height:1.4;margin-bottom:20px}.choices{gap:11px}.choice{padding:14px 12px;gap:10px;font-size:13px;min-height:67px;flex-wrap:wrap}.choice-letter{min-width:26px;width:26px;height:26px;font-size:11px}.choice-copy{min-width:0;flex:1}.answer-mark{margin-left:36px;font-size:10px;flex-basis:100%}.question-bottom{position:sticky;bottom:0;z-index:1;margin:23px -18px -21px;padding:13px 17px;background:#f6f8f3f5;border-top:1px solid var(--line)}.question-bottom .button{min-width:86px;font-size:12px;padding:10px 12px}.question-bottom>span{font-size:10px}.feedback{padding:17px;font-size:13px}.feedback p{font-size:13px}.question-list summary{font-size:12px}.question-list summary span{font-size:10px}.results-panel{padding:23px}.result-metrics{gap:12px;margin:23px 0}.result-metrics>div{padding:3px 10px}.result-metrics strong{font-size:29px}.result-metrics strong small{font-size:14px}.result-metrics span{font-size:10px}.result-actions{display:grid;grid-template-columns:1fr;gap:9px}.results-topics,.missed-review,.essentials-panel{padding:21px;margin-top:18px}.answer-review summary{padding:16px;font-size:13px}.review-body{padding:0 16px 19px;font-size:13px}.coverage-note{font-size:12px;padding:13px 15px}.mode-actions .coverage-note{font-size:10px;padding:10px}.site-footer,.signed-in .site-footer{padding:18px 20px;display:block;font-size:9px}.site-footer span{display:block;margin-top:7px}.loading,.error-panel,.account-panel{margin:22px 18px;padding:22px}.signin-layout{display:block}.signin-story{min-height:0;padding:28px 26px 33px}.signin-story>img{width:133px;height:auto}.story-copy{margin:43px 0 0}.story-copy .eyebrow{font-size:10px;margin-bottom:17px}.story-copy h1{font-size:40px;max-width:330px}.story-copy>p:last-child{font-size:13px;line-height:1.8;max-width:287px;margin:20px 0 0}.story-bottom{display:none}.signin-form-wrap{padding:34px 26px 40px;justify-content:flex-start}.unlock{max-width:none}.unlock h2{font-size:28px}.unlock .intro{font-size:13px;margin-bottom:24px}.unlock .eyebrow{font-size:10px}.available-courses{margin-top:28px}.signin-story .runway-art{width:290px;height:390px;right:-70px;bottom:-140px}dialog{max-width:100vw;max-height:100dvh;width:100vw;height:100dvh;margin:0;border:0;border-radius:0}.dialog-bar,.reader-bar{padding:12px 15px}.reader-toolbar{padding:12px 13px;gap:8px}.reader-footer{padding:12px 14px}.reader-page{padding:20px}.reader-table{max-width:100%}.image-actions{gap:7px}.dialog-bar .button{font-size:11px;padding:8px 12px}}
@media(max-width:360px){.header-account .account-name{display:none}.learning-content{padding-left:15px;padding-right:15px}.practice-grid{grid-template-columns:1fr}.mode-kicker{display:flex;align-items:center}.mode-kicker span:last-child{margin:0}.question-title{font-size:21px}.question-card{padding-left:16px;padding-right:16px}.question-bottom{margin-left:-16px;margin-right:-16px}.result-metrics{gap:7px}.result-metrics strong{font-size:25px}.course-entry{gap:8px}.course-entry .button{font-size:12px}.story-copy h1{font-size:36px}.learning-sidebar nav button{font-size:10px;padding:8px 7px}}
@media(prefers-reduced-motion:no-preference){button{transition:background .14s,border-color .14s}.learning-content{animation:airside-enter .15s ease-out}@keyframes airside-enter{from{opacity:.6;transform:translateY(3px)}to{opacity:1;transform:translateY(0)}}}

/* Explicit header contrast overrides inherited legacy header colors. */
.site-header .header-account{color:var(--ink)}.site-header .header-account .text-button{color:var(--accent)}.save-status:has(>span:empty){display:none}.test-heading>div>p{font-size:24px;color:var(--ink);font-weight:600;letter-spacing:-.025em;line-height:1.35;margin:7px 0 0}
@media(max-width:850px){.site-header .header-account{color:#d6e7eb}.site-header .header-account .text-button{color:#d5eee1}}
@media(max-width:640px){.test-heading>div>p{font-size:20px}}

@media (max-width: 850px) { .question-list summary::after { content: none; } }

.topics-panel{margin-top:32px}.topics-panel h2{font-size:20px}.topics-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 28px;list-style:none;padding:0}.topics-grid li{display:flex;justify-content:space-between;gap:16px;padding:14px 0;border-bottom:1px solid var(--line)}.topics-grid strong{white-space:nowrap;color:var(--muted);font-size:13px}@media(max-width:640px){.topics-grid{grid-template-columns:1fr}}

.account-form select{width:100%;min-height:44px;border:1px solid #cbd4d0;border-radius:8px;padding:10px 12px;background:#fff;color:#173945;font:inherit;margin-bottom:16px}