.gaoc-english-shell{width:min(1440px,calc(100% - 40px));margin:28px auto 50px;}
.gaoc-english-return{display:flex;justify-content:space-between;gap:20px;font-size:13px;flex-wrap:wrap;}
#eaca-app .hero-copy{align-self:center;}
#eaca-app .brand{gap:8px;}
#eaca-app .button{min-height:44px;}
#eaca-app .course-card{box-shadow:none;}
@media(max-width:760px){.gaoc-english-shell{width:calc(100% - 24px);margin-top:20px;}.gaoc-english-return{font-size:11px;gap:10px;}}

#eaca-app .hero .eyebrow{color:#f5f5f5;}
#eaca-app .hero .button:not(.primary){background:#fff;color:#000000;border-color:#fff;}

/* Real aviation photographs replace the decorative four-scene illustration. */
#eaca-app .hero-photo.aviation-photo{background-image:none;background-color:var(--navy);overflow:hidden;min-height:240px;}
#eaca-app .aviation-photo img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;filter:saturate(.62) contrast(.96);}
@media(max-width:900px){#eaca-app .hero-photo.aviation-photo{min-height:200px;max-height:220px;}}

/* GAOC palette, scoped to this installation of English Academy. */
#eaca-app{--ink:#303030;--navy:#303030;--teal:#303030;--mint:#f4f4f4;--orange:#b8860b;--paper:#f8f8f8;--line:#e6e6e6;--muted:#555555;--gaoc-accent:#b8860b;--gaoc-hover:#303030;box-shadow:0 18px 60px #30303012;}
#eaca-app a,#eaca-app summary{color:#000000;}
#eaca-app button:hover{background:var(--mint);}
#eaca-app .primary{background:var(--navy);border-color:var(--navy);color:#fff;}
#eaca-app .primary:hover{background:var(--gaoc-hover);border-color:var(--gaoc-hover);}
#eaca-app button:focus-visible,#eaca-app a:focus-visible,#eaca-app input:focus-visible,#eaca-app select:focus-visible,#eaca-app textarea:focus-visible,#eaca-app summary:focus-visible{outline-color:var(--gaoc-accent);}
#eaca-app .badge{background:var(--mint);color:#000000;}
#eaca-app .card.tint,#eaca-app .notice:not(.error):not(.success){background:var(--mint);border-color:var(--line);}
#eaca-app .notice:not(.error):not(.success){border-left-color:var(--gaoc-accent);}
#eaca-app .card.dark .muted,#eaca-app .brand small{color:#f5f5f5;}
#eaca-app .app-top button:hover{background:#ffffff24;color:#fff;}
#eaca-app .hero p{color:#f5f5f5;}
#eaca-app .hero-photo:after{background:linear-gradient(90deg,#30303045,transparent);}
#eaca-app .mission-nav button.active{background:var(--mint);color:#000000;border-color:var(--line);}
#eaca-app .day-dot{border-color:#cacaca;}
#eaca-app .done .day-dot{background:var(--navy);border-color:var(--navy);}
#eaca-app select,#eaca-app textarea,#eaca-app input[type=text],#eaca-app #code-form input{border-color:#cacaca;color:#000000;}
#eaca-app .wave i{background:#555555;}
#eaca-app .avatar{background:var(--mint);color:#000000;}
#eaca-app .turn,#eaca-app .guide-turn{background:#f7f7f7;}
#eaca-app .turn.user,#eaca-app .guide-turn.user{background:#ececec;}
#eaca-app .option:has(input:checked){background:var(--mint);border-color:var(--navy);}
#eaca-app .vocab article{background:var(--mint);border-color:var(--line);}
#eaca-app .progress-track{background:var(--line);}
#eaca-app .progress-track span{background:var(--gaoc-accent);color:#000000;}
#eaca-app .course-number{background:var(--mint);color:#000000;}
#eaca-app .toast{background:var(--navy);}
#eaca-app .modal-shade{background:#303030cc;}
#eaca-app .review-form{background:var(--mint);}
#eaca-app .spin{border-color:#cacaca;border-top-color:var(--navy);}
#eaca-app .guide-launcher,#eaca-app .guide-panel{border-color:var(--line);box-shadow:0 8px 30px #30303022;}
#eaca-app .guide-launcher small,#eaca-app .guide-head p{color:#000000;}
#eaca-app .guide-head{background:var(--mint);border-color:var(--line);}
#eaca-app .guide-highlight{outline-color:var(--gaoc-accent)!important;}
#eaca-app .voice-stage.live .avatar:has(.guide-portrait){box-shadow:0 0 0 7px #e5e5e5;animation-name:gaoc-academy-voice-pulse;}
#eaca-app .gs-player{--gs-ink:var(--navy);--gs-accent:var(--gaoc-accent);}
#eaca-app .gs-controls button{font:13px/1.4 Arial,sans-serif;padding:9px 14px;min-height:44px;border:1px solid #a6a6a6;border-radius:6px;background:transparent;color:#fff;}
#eaca-app .gs-controls button:hover{background:var(--gaoc-hover);}
#eaca-app .gs-controls .gs-next{background:var(--gaoc-accent);border-color:var(--gaoc-accent);color:#000000;}
#eaca-app .gs-controls .gs-next:hover{background:#b8860b;border-color:#b8860b;color:#000000;}
@media(max-width:650px){#eaca-app .gs-controls button{font-size:12px;padding:8px 10px;min-width:0;}#eaca-app .gs-controls .gs-expand{font-size:0;padding:8px;flex:0 0 44px;width:44px;}#eaca-app .gs-controls .gs-expand:before{font-size:20px;}}
@keyframes gaoc-academy-voice-pulse{50%{box-shadow:0 0 0 12px #e5e5e555;}}
@media print{#eaca-app .hero{background:#fff;color:#000000;}#eaca-app .hero p{color:#000000;}}