/* Shared geometry for the landing page and every account route. */
:root{--site-width:1360px;--site-gutter:clamp(16px,3vw,40px);--header-block:112px}
html{scroll-padding-top:var(--header-block);scrollbar-gutter:stable}
.header{width:calc(100% - var(--site-gutter)*2);max-width:var(--site-width);margin:16px auto;min-height:76px;padding:12px 18px;gap:18px;position:sticky;top:16px;z-index:10;flex-wrap:nowrap;box-shadow:0 8px 30px #1c092108}
.header nav{display:flex;gap:6px;align-items:center;font-size:14px}
.header nav a,.header .login{text-transform:uppercase;letter-spacing:.04em;line-height:1.3;transition:background .2s,color .2s,border-color .2s,box-shadow .2s}
.header nav a{display:flex;align-items:center;justify-content:center;padding:12px 13px;min-height:44px;border:1px solid transparent;border-radius:11px;white-space:nowrap;background:var(--subtle)}
.header nav a:hover,.header nav a:focus-visible,.header nav a[aria-current],.header .login:hover,.header .login[aria-current]{color:var(--accent);background:var(--accent-soft);border-color:var(--line)}
.header .header-actions{width:auto;display:flex;align-items:center;justify-content:flex-end;gap:9px}
.header .login{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:10px 14px;font-size:14px}
.header nav .mobile-account-link{display:none}
.mobile-nav-toggle{display:none;border:1px solid var(--line);background:var(--subtle);border-radius:12px;min-width:46px;min-height:42px;padding:9px 11px;align-items:center;justify-content:center;flex-direction:column;gap:4px}.mobile-nav-toggle span{display:block;width:21px;height:2px;border-radius:2px;background:currentColor;transition:transform .2s,opacity .2s}.mobile-nav-toggle b{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.header nav,.header .header-actions{min-width:0}
.header .segmented-control{margin:0;min-height:40px}
.header .segmented-control label{width:34px}
section.home-screen{scroll-margin:0}
.home-screen{min-height:calc(100svh - var(--header-block));padding-top:28px;padding-bottom:28px}
.intro-screen{display:flex;flex-direction:column;gap:18px}
.intro-screen .hero{margin-top:0;margin-bottom:0;flex:1;display:grid;align-items:center;padding:36px 24px}
.intro-screen .compatibility{padding-top:0;padding-bottom:0}
.intro-screen .compatibility>div{margin-top:10px;margin-bottom:6px}
.intro-screen .compatibility b{padding:12px}
.intro-screen .hero h1{font-size:clamp(3.1rem,5.4vw,5.5rem);margin-top:20px;margin-bottom:18px}
.home-screen .section-heading{margin-bottom:24px}
.home-screen .section-heading h2{font-size:clamp(2rem,3.5vw,3.2rem);margin-top:12px}
.home-screen .section-heading>p{font-size:16px}
/* Fixed viewport-sized chapters on desktop. Overflow remains accessible at zoom. */
@media(min-width:1000px) and (min-height:650px){
 html:has(.landing-page){scroll-snap-type:y proximity}
 .home-screen{height:calc(100svh - var(--header-block));min-height:0;overflow:auto;scroll-snap-align:start;scrollbar-width:thin;scrollbar-color:var(--line) transparent}
 .features.home-screen,.how.home-screen{display:flex;flex-direction:column;justify-content:center}
 .features .feature-grid{grid-template-columns:1.05fr 1fr 1fr;grid-template-rows:.9fr 1.1fr;gap:16px;min-height:420px;max-height:660px;flex:1}
 .features .hero-visual{grid-row:span 2;min-height:0;padding:18px}
 .features .briefing-card{grid-column:span 2}
 .features .feature-card{padding:20px 24px;min-height:0;gap:0}
 .features .briefing-card{padding-top:18px;padding-bottom:18px}
 .features .feature-icon{display:none}
 .features .feature-card h3{font-size:26px;line-height:1.15;margin:8px 0 10px}
 .features .feature-card h3 br{display:none}
 .features .feature-card p{font-size:16px;line-height:1.5;max-width:none}
 .features .briefing-stats{margin-top:12px;padding-top:12px}
 .features .briefing-stats b{font-size:22px}
 .features .tool-chips{gap:6px;margin-top:14px}
 .features .tool-chips span{padding:6px 9px;font-size:14px}
 .features .connection-preview{padding:10px;margin-top:12px;gap:6px}
 .features .connection-mark{display:none}
 .features .connection-preview b{font-size:15px}
 .features .connection-preview .pill{font-size:12px;margin-left:0}
 .features .connected-card .feature-tag,.features .connection-preview b{display:none}
 .features .connected-card h3{font-size:23px;margin-top:0;line-height:1.1}
 .features .connected-card p{line-height:1.45}
 .features .connection-preview{display:block;margin-top:8px;padding:0;border:0;background:none}
 .features .connection-preview .pill{display:inline-block;padding:4px 8px}
 .features .airports{padding:0 15px;gap:10px}
 .features .airports strong{font-size:32px}
 .features .panel-top,.features .flight-meta,.features .briefing-row{padding:14px 15px}
 .features .photo-caption{left:18px;right:18px;font-size:12px}
 .features .photo-caption>span:last-child,.features .visual-foot>span:last-child{display:none}
 #customize.home-screen{display:flex;align-items:center}
 #customize .customize-grid{flex-shrink:0;gap:38px}
 #customize h2{margin:14px 0 18px}
 #customize fieldset{margin-top:19px}
 #customize .efb-body{min-height:0;padding:24px}
 #customize .efb-flight{margin-top:18px}
 .how .steps article{padding:24px}
 .how .step-number{width:46px;height:46px;margin-bottom:20px}
 .how .steps h3{font-size:24px;margin-bottom:14px}
 .how .steps p{font-size:16px}
 .how .connect-note{padding:18px 24px}
}
@media(min-width:1000px) and (max-height:760px){
 .home-screen{padding-top:18px;padding-bottom:18px}
 .home-screen .section-heading h2{font-size:32px}
 .home-screen .section-heading{margin-bottom:18px}
 .features .feature-grid{min-height:380px}
 .features .feature-card{padding:16px 20px}
 .features .feature-card h3{font-size:23px}
 .features .tool-chips{margin-top:10px}
 .features .connection-preview{padding:7px}
 .intro-screen .hero h1{font-size:clamp(3rem,5vw,4.7rem);margin:14px auto}
 .intro-screen .hero-actions{margin-top:18px}
 .intro-screen .hero-note{margin-top:12px}
 #customize .customize-grid{gap:30px}
 #customize h2{font-size:34px}
 #customize .efb-body{padding:18px}
 #customize .efb-greeting h3{font-size:22px}
 #customize .efb-toolbar,#customize .efb-bottom{padding:12px 18px}
}
@media(max-width:1120px){
 .header{gap:10px;padding-left:14px;padding-right:14px}
 .header nav a{padding:10px 9px;font-size:13px}
 .header .brand-symbol{display:none}
 .header .header-actions{gap:6px}
 .header .login{padding:10px;font-size:13px}
 .header .login span{margin-left:7px}
}
@media(max-width:999px){
 :root{--header-block:90px}
 .header{display:grid;grid-template-columns:1fr auto auto;row-gap:10px;position:sticky}
 .header .brand{grid-column:1;grid-row:1}
 .header .header-actions{grid-column:2;grid-row:1}
 .mobile-nav-toggle{display:flex;grid-column:3;grid-row:1;z-index:2}
 .header.menu-open .mobile-nav-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg)}.header.menu-open .mobile-nav-toggle span:nth-child(2){opacity:0}.header.menu-open .mobile-nav-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
 .header nav{position:absolute;top:calc(100% + 8px);right:0;width:min(360px,calc(100vw - var(--site-gutter)*2));display:grid;grid-template-columns:1fr;gap:6px;padding:10px;background:var(--surface);border:1px solid var(--line);border-radius:18px;box-shadow:0 24px 70px #160d2340;opacity:0;visibility:hidden;transform:translateY(-8px) scale(.98);transform-origin:top right;transition:opacity .2s,transform .2s,visibility .2s}
 .header.menu-open nav{opacity:1;visibility:visible;transform:none}
 .header nav a{white-space:normal;font-size:14px;padding:12px;text-align:left;justify-content:flex-start}
 .header nav .mobile-account-link{display:flex;border-color:color-mix(in srgb,var(--accent) 35%,var(--line));color:var(--accent)}
 .home-screen{height:auto;min-height:calc(100svh - var(--header-block));padding-top:32px;padding-bottom:32px;overflow:visible}
 .intro-screen .hero{min-height:360px}
 #customize.home-screen{padding-top:38px;padding-bottom:38px}
 #customize .customize-grid{width:calc(100% - var(--site-gutter)*2);gap:28px}
 .how .section-heading{margin-bottom:26px}
}
@media(max-width:620px){
 .header{margin:10px auto;top:10px;padding:10px;min-height:0;border-radius:16px;grid-template-columns:minmax(0,1fr) auto}
 .header .brand{font-size:25px}
 .header .brand{grid-column:1;grid-row:1}.mobile-nav-toggle{grid-column:2;grid-row:1}.header .header-actions{grid-column:1/-1;grid-row:2;gap:7px;justify-content:flex-start;padding-top:7px;border-top:1px solid var(--line)}
 .header .header-actions .login{display:none}
 .header nav .mobile-account-link span{display:none}
 .header nav a{font-size:14px;letter-spacing:.02em;padding:12px;min-height:44px;overflow-wrap:normal}
 .header .segmented-control label{width:32px}
 .intro-screen .hero{padding:30px 18px;min-height:0}
 .intro-screen .hero h1{font-size:clamp(2.5rem,9vw,3.4rem)}
 .intro-screen .hero-description{font-size:17px}
 .intro-screen .compatibility>div{gap:7px}
 .intro-screen .compatibility b{font-size:13px;padding:9px 6px}
 .home-screen{padding-top:20px;padding-bottom:28px}
 .home-screen .section-heading h2{font-size:34px}
}
@media(max-width:380px){
 .header .segmented-control label{width:28px}
 .header .brand{font-size:24px}
 .header nav a{overflow-wrap:normal;font-size:13px}
}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto;scroll-snap-type:none!important}.header nav a,.header .login{transition:none}}