/* ChicagoAirshow.com — consolidated public stylesheet, 2026-11-06.
   Logo sizes and header heights are injected by lib.php from Logo & Branding.
   Theme colors are injected by theme_css(). Do not duplicate those values here. */
:root{font-family:Arial,Helvetica,sans-serif;scroll-behavior:smooth;--site-bg:#07111f;--site-surface:#0d1d32;--site-accent:#19b5f5;--site-text:#eff6ff}
*{box-sizing:border-box}
html{overflow-x:hidden}
body{margin:0;background:var(--site-bg);color:var(--site-text);min-width:0}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer}
img{max-width:100%}
/* Navigation: sizing is supplied by Logo & Branding Manager. */
.topbar{position:relative;z-index:20;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:0 max(4%,calc((100vw - 1450px)/2));background:var(--site-bg);border-bottom:1px solid #ffffff14}
.brand{display:flex;align-items:center;flex:0 1 auto;min-width:0;min-height:0}
.brand-logo{display:block;max-width:100%;height:auto;object-fit:contain;object-position:left center}
.topbar nav{display:flex;align-items:center;gap:clamp(15px,2.7vw,38px);height:100%;flex-shrink:0}
.topbar nav a{display:flex;align-items:center;height:100%;min-height:56px;padding:8px 0 5px;border-bottom:3px solid transparent;font-size:14px;white-space:nowrap}
.topbar nav a:hover,.topbar nav a.selected{border-color:var(--site-accent);color:var(--site-accent)}
.mobile-nav-toggle{display:none;border:1px solid #4a718c;background:#0d253b;color:#fff;border-radius:9px;width:46px;height:43px;padding:10px;cursor:pointer;flex-direction:column;align-items:center;justify-content:space-around;flex-shrink:0}
.mobile-nav-toggle span{display:block;width:23px;height:2px;border-radius:2px;background:#ecf6ff;transition:transform .2s,opacity .2s}
.mobile-nav-toggle[aria-expanded=true] span:first-child{transform:translateY(7px) rotate(45deg)}
.mobile-nav-toggle[aria-expanded=true] span:nth-child(2){opacity:0}
.mobile-nav-toggle[aria-expanded=true] span:last-child{transform:translateY(-7px) rotate(-45deg)}
/* Header slideshow */
.hero{position:relative;height:clamp(400px,34vw,485px);overflow:hidden;background:#14213a}
.hero-slide{position:absolute;inset:0;background-size:cover;background-position:center;opacity:0;transition:opacity 1s ease;pointer-events:none}
.hero-slide.is-active{opacity:1;pointer-events:auto;z-index:1}
.hero.slide-mode .hero-slide{opacity:1;transform:translateX(100%);transition:transform .8s ease}
.hero.slide-mode .hero-slide.is-active{transform:translateX(0)}
.hero.slide-mode .hero-slide:not(.is-active){transform:translateX(-100%)}
.default-slide{background-image:linear-gradient(100deg,#061021bb,#04203977),radial-gradient(ellipse at 78% 25%,#f27f6b 0%,transparent 39%),linear-gradient(140deg,#10204b,#2a4777 48%,#102033)}
.slide-link{position:absolute;inset:0;display:block;z-index:1}
.hero-content{position:absolute;z-index:3;top:34%;left:5%;right:5%;max-width:1200px;transform:translateY(-50%);pointer-events:none;text-shadow:0 2px 12px #0009}
.hero-content .eyebrow,.eyebrow{font-size:clamp(10px,1.05vw,14px);letter-spacing:.32em;font-weight:500}
.hero-content h1.hero-tagline{font-size:26px;letter-spacing:.12em;line-height:1.4;font-weight:500;margin:12px 0;white-space:normal}
.hero-tagline span{color:var(--site-accent)}
.hero-content h1{margin:8px 0 14px;font-size:clamp(40px,6vw,86px);line-height:1.06}
.hero-content p{font-size:clamp(11px,1.25vw,16px);letter-spacing:2px}
.hero-content p span{color:var(--site-accent);padding:0 8px}
.hero-cta{pointer-events:auto;display:inline-flex;align-items:center;gap:9px;margin-top:14px;padding:12px 17px;border:0;border-radius:7px;background:#087DB8;color:#ffffff;font-size:13px;font-weight:800;letter-spacing:.3px;text-shadow:none}
.hero-cta:hover{filter:brightness(1.12)}
.hero-prev,.hero-next{position:absolute;z-index:5;top:47%;transform:translateY(-50%);border:0;border-radius:8px;background:#061a2bb5;color:#fff;font-size:30px;padding:5px 10px}
.hero-prev{left:8px}.hero-next{right:8px}
.hero-dots{position:absolute;z-index:5;bottom:16px;left:50%;transform:translateX(-50%);display:flex;gap:10px}
.hero-dot{width:10px;height:10px;border-radius:50%;border:0;background:#ffffffa0;padding:0}
.hero-dot.is-active{background:background:var(--site-accent);box-shadow:0 0 0 3px #ffffff73}
.banner-credit{position:absolute;bottom:35px;left:5%;right:5%;max-width:1200px;margin:auto;z-index:4;display:flex;align-items:center;gap:24px;padding:16px 26px;background:#041426d9;border:1px solid #8ec7ed44;border-radius:11px;backdrop-filter:blur(12px);color:#f1f7ff}
.banner-credit-label{font-size:10px;letter-spacing:.19em;color:#add5f3;white-space:nowrap}
.banner-credit #banner-credit-title{font-size:17px;letter-spacing:.03em;font-weight:650}
.banner-credit a{margin-left:auto;border:1px solid #83c6ee;border-radius:7px;padding:9px 14px;font-size:12px;white-space:nowrap}
.banner-credit a:hover{background:#ffffff22}
/* Video gallery */
.gallery{max-width:1480px;margin:0 auto;padding:34px 4% 35px;background:var(--site-bg)}
.section-header{display:flex;align-items:center;justify-content:center;gap:35px;text-align:center;margin-bottom:24px}
.section-header h2{font-size:clamp(22px,2.35vw,33px);font-weight:650;letter-spacing:.08em;margin:0 0 9px}
.section-header p{display:none}.accent-line{width:100px;height:2px;background:var(--site-accent)}
.video-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:17px 13px}
.video-card,.video-tile{min-width:0}
.thumb{position:relative;aspect-ratio:16/9;border-radius:10px;overflow:hidden;background:#1a344e}
.thumb img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .3s}
.video-card:hover img{transform:scale(1.05)}
.play{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:48px;height:48px;display:grid;place-items:center;background:#050b12b5;border:2px solid white;border-radius:50%;font-size:18px;padding-left:4px}
.youtube-mark{position:absolute;bottom:8px;right:8px;padding:4px 7px;background:#020711cc;border-radius:4px;font-size:11px}
.video-card h3{font-size:13px;line-height:1.35;margin:8px 4px 0;font-weight:550}
.video-card:hover h3{color:#3abbff}
.video-details-link{display:block;font-size:11px;color:var(--site-accent);margin:6px 4px 0}
.video-details-link:hover{text-decoration:underline}
.empty-gallery{text-align:center;background:var(--site-surface);border:1px solid #1c344f;border-radius:12px;padding:66px 15px}
.empty-gallery span{font-size:40px;color:var(--site-accent)}.empty-gallery p{color:#a5b7cb}
.pagination{display:flex;gap:9px;justify-content:center;margin-top:30px}
.pagination a{padding:9px 14px;border-radius:6px;background:#111d32;border:1px solid #30415c}
.pagination a.current,.pagination a:hover{background:var(--site-accent);border-color:var(--site-accent);color:#06121e}
/* Partners */
.partners,.supporting{padding:32px max(4%,calc((100vw - 1450px)/2));border-top:1px solid #ffffff1c}
.partners{background:#081729}
.partners h2,.supporting h2{text-align:center;font-size:22px;letter-spacing:.2em;font-weight:550;margin:0 0 24px;color:var(--site-text)}
.partner-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;max-width:1420px;margin:auto}
.partner-card{position:relative;overflow:hidden;isolation:isolate;min-height:210px;display:flex;flex-direction:column;gap:9px;padding:18px 20px;background:var(--site-surface);background-size:cover;background-position:center;border:1px solid #7cc8f04d;border-radius:10px;box-shadow:0 10px 28px #0003}
.partner-card::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(90deg,#061526f5 0%,#061526d9 53%,#07192d69 100%)}
.partner-card:nth-child(3n+1){background-image:url('partner-background-1.jpg')}
.partner-card:nth-child(3n+2){background-image:url('partner-background-2.jpg')}
.partner-card:nth-child(3n+3){background-image:url('partner-background-3.jpg')}
.partner-card img{height:52px;max-width:78%;width:auto;object-fit:contain;object-position:left center;filter:drop-shadow(0 2px 4px #0009)}
.partner-card h3{font-size:18px;margin:1px 0;color:#f4f9ff;text-shadow:0 1px 5px #0008}
.partner-card p{font-size:13px;line-height:1.6;margin:0 0 4px;opacity:.9;flex:1;color:#f4f9ff;text-shadow:0 1px 5px #0008}
.partner-card a{align-self:start;border:1px solid #62d0ff;color:#c9f3ff;background:#031b2dba;border-radius:16px;padding:7px 15px;font-size:12px}
.supporting{padding-top:27px;padding-bottom:27px}
.supporting h2{font-size:12px;color:var(--site-accent);margin-bottom:15px}
.supporting-row{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;align-items:center}
.supporting-row>a,.supporting-row>span{display:flex;gap:8px;align-items:center;padding:10px 20px;min-height:55px;border-right:1px solid #ffffff33;color:var(--site-text);font-size:14px}
.supporting-row img{height:32px;max-width:95px;object-fit:contain}
footer{border-top:1px solid #1a2b40;padding:24px 5%;color:#8b9bb0;font-size:12px;display:flex;justify-content:space-between;gap:12px}
/* About & Contact */
.subpage{max-width:1230px;margin:auto;padding:0 4% 85px;min-height:70vh;background:var(--site-bg)}
.page-intro{text-align:center;padding:72px 12px 58px}
.page-intro .eyebrow{color:var(--site-accent);font-size:12px;letter-spacing:5px}
.page-intro h1{font-size:clamp(38px,5vw,70px);letter-spacing:-2px;margin:16px 0 12px}
.page-intro p{color:#adbed3;font-size:17px}
.bio-feature{display:grid;grid-template-columns:250px 1fr;gap:54px;align-items:center;background:var(--site-surface);border:1px solid #24405b;border-radius:20px;padding:45px}
.avatar-wrap{display:flex;justify-content:center}
.avatar{display:block;aspect-ratio:1;width:135px;height:135px;object-fit:cover;border-radius:50%;border:4px solid var(--site-accent);box-shadow:0 6px 36px #0005}
.avatar.large{width:225px;height:225px}
.avatar-empty{display:grid;place-items:center;background:linear-gradient(140deg,#164272,#071729);font-size:58px;color:var(--site-accent)}
.bio-feature h2,.contact-panel h2{font-size:30px;margin:0 0 18px}
.bio-copy{line-height:1.9;color:#c3d0e0;white-space:normal;overflow-wrap:anywhere}
.team-section{margin-top:75px}
.team-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.team-card{background:var(--site-surface);border:1px solid #253d5c;border-radius:16px;padding:35px 24px;text-align:center;display:flex;align-items:center;flex-direction:column}
.team-card h3{font-size:22px;margin:19px 0 6px}
.person-role{color:var(--site-accent);font-size:13px;font-weight:700}
.team-card p{color:#b8c9d9;line-height:1.7;overflow-wrap:anywhere}
.empty-note{color:#a1b1c4;text-align:center}
.contact-layout{display:grid;grid-template-columns:1fr 1.35fr;gap:30px}
.contact-panel{background:var(--site-surface);border:1px solid #27425d;border-radius:16px;padding:34px;min-width:0}
.contact-detail{padding:19px 0;border-top:1px solid #2a4158}
.contact-detail h3{color:#82bfe4;font-size:13px;text-transform:uppercase;letter-spacing:1px}
.contact-detail p,.contact-detail a{color:#d8e3ef;line-height:1.8;overflow-wrap:anywhere}
.contact-detail a:hover{color:var(--site-accent)}
.custom-form{overflow-wrap:anywhere}
.custom-form input,.custom-form select,.custom-form textarea,.custom-form iframe{max-width:100%}
/* Video detail page */
.watch-page{max-width:1100px;margin:0 auto;padding:55px 22px 85px;min-height:65vh}
.watch-page h1{font-size:clamp(1.7rem,3vw,2.8rem);margin:12px 0 22px}
.watch-page p{max-width:820px;line-height:1.8;white-space:pre-line}
.watch-page iframe{width:100%;aspect-ratio:16/9;border:0;border-radius:14px;background:#000}
.watch-page .watch-links{display:flex;gap:18px;flex-wrap:wrap;margin:25px 0}
.watch-page a{color:var(--site-accent)}
/* Tablet */
@media(max-width:960px){.video-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.accent-line{width:40px}.topbar{padding-inline:3%}}
@media(max-width:780px){.bio-feature{grid-template-columns:1fr;text-align:center;gap:24px;padding:30px 20px}.team-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.contact-layout{grid-template-columns:1fr}}
/* Phones — Logo & Branding Manager injects precise logo and header dimensions. */
@media(max-width:760px){
 .topbar{padding:0 16px;flex-wrap:nowrap;gap:12px}
 .brand{min-width:0}
 .mobile-nav-toggle{display:flex}
 .topbar nav{display:none;position:absolute;left:0;right:0;top:100%;width:100%;height:auto;order:unset;background:#071827f7;backdrop-filter:blur(15px);z-index:50;flex-direction:column;align-items:stretch;gap:0;padding:8px 16px 16px;box-shadow:0 20px 35px #0008;border-bottom:1px solid #316181}
 .topbar nav.mobile-open{display:flex}
 .topbar nav a{font-size:16px;min-height:0;height:auto;padding:15px 12px;border-bottom:1px solid #ffffff19}
 .topbar nav a.selected{color:var(--site-accent);border-color:#ffffff19}
 .hero{height:420px;min-height:0}
 .hero-slide{background-position:61% center}
 .hero-content{top:28%;left:20px;right:20px;transform:translateY(-25%)}
 .hero-content .eyebrow{font-size:10px;letter-spacing:.21em}
 .hero-content h1.hero-tagline{font-size:17px;letter-spacing:.06em;line-height:1.5;margin:9px 0}
 .hero-cta{font-size:11px;padding:11px 13px;margin-top:10px}
 .banner-credit{bottom:45px;left:15px;right:15px;padding:10px 12px;min-height:55px;gap:6px;flex-wrap:wrap}
 .banner-credit-label{font-size:9px}
 .banner-credit #banner-credit-title{font-size:12px}
 .banner-credit a{font-size:11px}
 .hero-prev,.hero-next{top:66%;font-size:22px;padding:4px 7px}
 .hero-dots{bottom:16px}
 .gallery{padding:28px 14px 36px}
 .section-header{margin-bottom:23px;gap:0}
 .section-header h2{font-size:23px}
 .accent-line{display:none}
 .video-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 10px}
 .video-card h3{font-size:12px}
 .play{width:39px;height:39px;font-size:14px}
 .partners,.supporting{padding:28px 15px}
 .partners h2{font-size:19px;letter-spacing:.13em}
 .partner-grid{grid-template-columns:1fr;gap:14px}
 .partner-card{min-height:180px}
 .supporting-row>a,.supporting-row>span{border:0;min-width:40%;justify-content:center;padding:7px}
 footer{padding:20px 15px;flex-wrap:wrap}
}
@media(max-width:520px){.team-grid{grid-template-columns:1fr}.page-intro{padding:47px 0 35px}.avatar.large{width:190px;height:190px}}
@media(max-width:370px){.hero-content h1.hero-tagline{font-size:15px}.hero-content .eyebrow{letter-spacing:.12em}}
@media(prefers-reduced-motion:reduce){.hero-slide{transition:none!important}}