@import url('https://fonts.googleapis.com/css2?family=Spectral:wght@400;500;600&family=IBM+Plex+Sans:wght@400;500;600&display=swap');

:root{
  --paper:#F6F1E7;
  --paper-dim:#ECE4D3;
  --paper-line:#DED2B8;
  --ink:#241F17;
  --ink-soft:#6B6252;
  --navy:#2C4356;
  --navy-soft:#3F5C73;
  --ochre:#B87A28;
  --olive:#4B7A57;
  --brick:#9C4A3D;
  --radius:3px;
}

*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:'IBM Plex Sans',sans-serif;
  font-size:16.5px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,.brand{
  font-family:'Spectral',serif;
  font-weight:500;
  color:var(--navy);
  line-height:1.2;
}
a{color:var(--ochre);text-decoration:none;}
a:hover{text-decoration:underline;}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--ochre);
  outline-offset:2px;
}

.wrap{max-width:960px;margin:0 auto;padding:0 24px;}

/* header */
header.site{
  border-bottom:1px solid var(--paper-line);
  background:var(--paper);
  position:sticky;top:0;z-index:20;
}
.site-bar{
  display:flex;align-items:center;justify-content:space-between;
  padding:20px 0;flex-wrap:wrap;gap:12px;
}
.brand{font-size:22px;letter-spacing:0.2px;}
.brand span{color:var(--ochre);}
nav.main{display:flex;flex-wrap:wrap;}
nav.main a{
  color:var(--ink-soft);font-weight:500;font-size:14.5px;
  margin-left:26px;font-family:'IBM Plex Sans',sans-serif;
  border-bottom:1px solid transparent;padding-bottom:2px;
}
nav.main a:first-child{margin-left:0;}
nav.main a:hover,nav.main a.active{color:var(--navy);text-decoration:none;border-color:var(--ochre);}

/* hero — asymmetric split */
.hero-split{
  display:grid;
  grid-template-columns:1.3fr 1fr;
  gap:40px;
  padding:52px 0 44px;
  align-items:center;
}
.hero-split h1{
  font-size:clamp(28px,3.6vw,38px);
  margin:0 0 14px;
  max-width:16ch;
}
.hero-split p.lede{color:var(--ink-soft);font-size:16.5px;max-width:48ch;margin:0;}
.hero-mark{width:100%;max-width:220px;justify-self:end;}

/* board */
.board{
  background:#fff;
  border:1px solid var(--paper-line);
  border-radius:var(--radius);
  overflow:hidden;
  margin-bottom:36px;
}
.board-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 18px;border-bottom:1px solid var(--paper-line);background:var(--paper-dim);
}
.board-head h2{margin:0;font-size:15px;color:var(--ink-soft);font-family:'IBM Plex Sans',sans-serif;font-weight:600;}
.board-head .clock{font-variant-numeric:tabular-nums;color:var(--ochre);font-weight:600;font-size:13.5px;}
table.flights{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums;}
table.flights th{
  text-align:left;font-weight:600;font-size:12px;letter-spacing:0.3px;
  color:var(--ink-soft);padding:10px 18px;border-bottom:1px solid var(--paper-line);
}
table.flights td{padding:12px 18px;border-bottom:1px solid var(--paper-line);font-size:14.5px;}
table.flights tr:last-child td{border-bottom:none;}
table.flights td.code{font-weight:600;color:var(--navy);}
table.flights td.route{color:var(--ink-soft);}
.status{display:inline-block;padding:3px 9px;border-radius:20px;font-size:12px;font-weight:600;}
.status.ontime{background:rgba(75,122,87,0.12);color:var(--olive);}
.status.delayed{background:rgba(184,122,40,0.14);color:var(--ochre);}
.status.cancelled{background:rgba(156,74,61,0.12);color:var(--brick);}
.status.landed{background:rgba(44,67,86,0.10);color:var(--navy-soft);}

/* lookup */
.lookup{display:flex;gap:10px;margin-bottom:52px;flex-wrap:wrap;}
.lookup input{
  flex:1;min-width:220px;background:#fff;border:1px solid var(--paper-line);
  color:var(--ink);padding:12px 14px;border-radius:var(--radius);font-size:15px;
  font-family:'IBM Plex Sans',sans-serif;
}
.lookup input::placeholder{color:var(--ink-soft);}
.btn{
  background:var(--navy);color:#fff;border:none;padding:12px 22px;
  font-weight:600;font-size:15px;border-radius:var(--radius);cursor:pointer;
  font-family:'IBM Plex Sans',sans-serif;
}
.btn:hover{background:var(--navy-soft);}

/* feature columns */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:30px;margin:0 0 56px;}
.features h3{font-size:16px;color:var(--navy);margin:0 0 8px;border-top:2px solid var(--ochre);padding-top:12px;font-family:'Spectral',serif;font-weight:600;}
.features p{color:var(--ink-soft);font-size:14.5px;margin:0;}

/* generic sections */
.section{padding:40px 0;border-top:1px solid var(--paper-line);}
.section h2{font-size:24px;margin:0 0 8px;}
.section p.intro{color:var(--ink-soft);max-width:60ch;margin:0 0 26px;}

/* airport list */
table.airports{width:100%;border-collapse:collapse;margin-bottom:20px;}
table.airports th{text-align:left;font-size:12px;color:var(--ink-soft);padding:8px 14px;border-bottom:1px solid var(--paper-line);letter-spacing:0.3px;}
table.airports td{padding:11px 14px;border-bottom:1px solid var(--paper-line);font-size:14.5px;}
table.airports td.iata{font-family:'Spectral',serif;font-weight:600;color:var(--ochre);width:64px;}

/* stepline */
.stepline{border-left:2px solid var(--paper-line);padding-left:20px;margin:0 0 26px;}
.stepline h3{margin:0 0 6px;font-size:17px;color:var(--navy);font-family:'Spectral',serif;}
.stepline p{margin:0;color:var(--ink-soft);font-size:14.5px;}

/* contact */
.contact-grid{display:grid;grid-template-columns:1.2fr 1fr;gap:40px;}
.contact-grid form{display:flex;flex-direction:column;gap:12px;}
.contact-grid label{font-size:13px;color:var(--ink-soft);margin-bottom:-6px;}
.contact-grid input,.contact-grid textarea{
  background:#fff;border:1px solid var(--paper-line);color:var(--ink);
  padding:11px 13px;border-radius:var(--radius);font-family:'IBM Plex Sans',sans-serif;font-size:14.5px;
}
.contact-grid textarea{min-height:110px;resize:vertical;}
.contact-side .label{color:var(--navy);font-weight:600;font-size:13px;margin-bottom:2px;}
.contact-side p{color:var(--ink-soft);font-size:14.5px;}

/* footer */
footer.site{border-top:1px solid var(--paper-line);padding:28px 0 50px;color:var(--ink-soft);font-size:13.5px;}
footer.site .foot-row{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;}

@media (max-width:720px){
  .hero-split{grid-template-columns:1fr;}
  .hero-mark{justify-self:start;max-width:140px;}
  .features{grid-template-columns:1fr;}
  .contact-grid{grid-template-columns:1fr;}
  table.flights td.route{display:none;}
  table.flights th:nth-child(2){display:none;}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;}}