/* I Drive 25 — design built around U.S. road-sign language.
   Type: Overpass (the open-source cousin of Highway Gothic, the typeface of American road signs).
   Color: brand blue, sign white, asphalt gray, warning yellow, and school-zone yellow-green. */

:root{
  --ink:#16202a;
  --muted:#4d5a66;
  --paper:#f3f5f4;
  --line:#d8dfe3;
  --blue:#0b4f9c;
  --blue-hover:#083f7f;
  --blue-deep:#08386f;
  --asphalt:#2a3138;
  --sign-yellow:#f7c600;
  --school:#d2e82a;
  --guide-green:#0a6b43;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{
  margin:0;
  font-family:"Overpass","Helvetica Neue",Arial,sans-serif;
  font-size:18px;
  line-height:1.6;
  color:var(--ink);
  background:#fff;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%}
a{color:inherit;text-decoration:none}
p{text-wrap:pretty}
:focus-visible{outline:3px solid var(--blue);outline-offset:3px}
.message :focus-visible,.community :focus-visible,.donate :focus-visible,.site-footer :focus-visible{outline-color:var(--sign-yellow)}

.skip{position:absolute;left:12px;top:-64px;z-index:50;padding:10px 16px;border-radius:8px;background:var(--ink);color:#fff;font-weight:700}
.skip:focus{top:12px}

.container{width:min(1120px,calc(100% - 40px));margin-inline:auto}

/* Type scale */
h1{
  font-size:clamp(44px,6.2vw,80px);
  line-height:1;
  letter-spacing:-.025em;
  font-weight:800;
  margin:0 0 26px;
  color:var(--ink);
  text-wrap:balance;
}
h2{
  font-size:clamp(30px,3.8vw,46px);
  line-height:1.08;
  letter-spacing:-.02em;
  font-weight:800;
  margin:0 0 18px;
  color:var(--ink);
  text-wrap:balance;
}
h3{font-size:22px;line-height:1.25;font-weight:700;margin:0 0 8px;color:var(--ink)}

/* Header */
.site-header{
  position:sticky;top:0;z-index:20;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center}
.brand img{display:block;width:150px;height:auto;max-height:62px;object-fit:contain}
.nav{display:flex;align-items:center;gap:30px;font-size:16px;font-weight:600}
.nav a{padding:6px 0;border-bottom:2px solid transparent}
.nav a:hover{border-bottom-color:var(--sign-yellow)}
.nav .nav-button{padding:11px 18px;border-radius:10px;background:var(--blue);color:#fff;border-bottom:0}
.nav .nav-button:hover{background:var(--blue-hover)}
.menu-toggle{
  display:none;
  background:none;border:0;border-radius:8px;
  padding:8px 10px;
  font:inherit;font-size:26px;line-height:1;
  color:var(--ink);cursor:pointer;
}

/* Buttons */
.button{
  display:inline-flex;align-items:center;justify-content:center;
  padding:14px 24px;
  border-radius:10px;
  font-weight:800;font-size:16px;line-height:1.2;
  transition:background-color .15s,color .15s,border-color .15s;
}
.button.primary{background:var(--blue);color:#fff}
.button.primary:hover{background:var(--blue-hover)}
.button.secondary{border:2px solid var(--ink);color:var(--ink);background:transparent}
.button.secondary:hover{background:var(--ink);color:#fff}
.button.accent{background:var(--sign-yellow);color:var(--ink)}
.button.accent:hover{background:#ffd633}
.button.big{padding:18px 28px;font-size:17px}

/* Hero: the speed-limit sign is the one bold moment on the page */
.hero{background:var(--paper);overflow:hidden}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:clamp(32px,6vw,90px);
  align-items:stretch;
}
.hero-copy{padding:clamp(48px,7vw,96px) 0 clamp(48px,6vw,80px)}
.lead{font-size:clamp(19px,1.8vw,22px);line-height:1.5;color:var(--muted);max-width:34rem;margin:0}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:32px 0 40px}
.trust-row{list-style:none;padding:0;margin:0;display:flex;flex-wrap:wrap;gap:16px 36px}
.trust-row li{display:flex;flex-direction:column;padding-left:14px;border-left:3px solid var(--blue);line-height:1.35}
.trust-row strong{font-size:18px;font-weight:800}
.trust-row span{font-size:15px;color:var(--muted)}

.hero-sign{display:flex;flex-direction:column;align-items:center;padding-top:clamp(40px,6vw,72px)}
.sign{
  container-type:inline-size;
  position:relative;
  width:clamp(200px,26vw,320px);
  aspect-ratio:4/5;
  background:#fff;
  border-radius:20px;
  filter:drop-shadow(0 16px 22px rgba(22,32,42,.18));
}
.sign-face{
  position:absolute;
  inset:14px;
  inset:4.5cqw;
  border:8px solid var(--ink);
  border-width:2.8cqw;
  border-radius:16px;
  border-radius:5.5cqw;
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  color:var(--ink);
  font-weight:800;
  line-height:1;
}
.sign-word{font-size:56px;font-size:17cqw;letter-spacing:.03em}
.sign-num{font-size:150px;font-size:58cqw;line-height:.9;letter-spacing:-.02em;margin-top:1cqw}
.post{
  flex:1;
  min-height:64px;
  width:clamp(12px,1.4vw,16px);
  background:linear-gradient(90deg,#7c868f,#cbd2d8 45%,#88929a);
}

@media (prefers-reduced-motion:no-preference){
  .sign{animation:settle .8s cubic-bezier(.2,.8,.2,1) both}
  @keyframes settle{
    from{opacity:0;transform:translateY(-28px) rotate(-2deg)}
    to{opacity:1;transform:none}
  }
}

/* Sections */
.section{padding:clamp(64px,9vw,104px) 0}
.paper{background:var(--paper)}

/* Message band: the road begins here */
.message{position:relative;background:var(--asphalt);color:#fff;padding-top:clamp(72px,9vw,112px)}
.message::before{
  content:"";
  position:absolute;left:0;right:0;top:26px;height:6px;
  background:repeating-linear-gradient(90deg,var(--sign-yellow) 0 56px,transparent 56px 104px);
}
.message-grid{display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);gap:clamp(28px,6vw,80px);align-items:end}
.message h2{color:#fff;margin:0;font-size:clamp(32px,4.4vw,54px)}
.message p{margin:0;color:#d0d8df}

/* Mission and About */
.two-col{
  display:grid;
  grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);
  gap:clamp(32px,7vw,96px);
  align-items:start;
}
.two-col h2{margin:0}
.statement h3{font-size:16px;font-weight:700;color:var(--blue);margin:0 0 8px}
.statement p{margin:0}
.statement-lg p{font-size:clamp(22px,2.4vw,28px);line-height:1.35;font-weight:600}
.statement-sm{margin-top:36px;padding-left:20px;border-left:4px solid var(--blue)}
.statement-sm p{color:var(--muted)}

/* What we do: each icon is a miniature road sign */
.section-heading{max-width:44rem;margin-bottom:clamp(32px,5vw,56px)}
.section-heading h2{margin-bottom:16px}
.section-heading p{margin:0;font-size:20px;color:var(--muted)}
.programs{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 clamp(32px,6vw,80px)}
.program{display:grid;grid-template-columns:56px minmax(0,1fr);gap:22px;padding:32px 0;border-top:2px solid var(--ink)}
.program h3{margin:2px 0 8px}
.program p{margin:0;font-size:17px;color:var(--muted)}

.badge{
  position:relative;isolation:isolate;
  width:56px;height:56px;
  display:grid;place-items:center;
  font-weight:900;font-size:22px;line-height:1;
}
.badge-speed{background:#fff;border:3px solid var(--ink);border-radius:9px}
.badge-warn{font-size:26px}
.badge-warn::before{
  content:"";z-index:-1;
  position:absolute;inset:8px;
  background:var(--sign-yellow);
  border:3px solid var(--ink);border-radius:5px;
  transform:rotate(45deg);
}
.badge-blue,.badge-green{color:#fff;border-radius:9px;font-size:28px}
.badge-blue{background:var(--blue);box-shadow:inset 0 0 0 3px var(--blue),inset 0 0 0 5px #fff}
.badge-green{background:var(--guide-green);box-shadow:inset 0 0 0 3px var(--guide-green),inset 0 0 0 5px #fff}

/* Community */
.community{background:var(--blue-deep);color:#fff}
.community h2{color:#fff}
.community p{color:#d3e0ee}
.community-grid{
  display:grid;
  grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);
  gap:clamp(32px,6vw,80px);
  align-items:center;
}
.check-list{list-style:none;padding:0;margin:28px 0 0;display:grid;gap:14px}
.check-list li{display:flex;align-items:center;gap:14px;font-weight:600}
.check-list span{
  flex:none;
  display:grid;place-items:center;
  width:28px;height:28px;border-radius:50%;
  background:var(--school);color:var(--ink);
  font-size:15px;font-weight:900;
}
.school-sign{margin:0;padding:clamp(16px,2.2vw,24px);border-radius:22px;background:var(--school);color:var(--ink)}
.school-sign-inner{padding:clamp(26px,4vw,46px);border:6px solid var(--ink);border-radius:14px}
.school-sign blockquote{margin:0}
.community .school-sign p{margin:0;color:var(--ink);font-size:clamp(24px,2.8vw,34px);line-height:1.2;font-weight:800}
.school-sign figcaption{margin-top:22px;font-size:16px;font-weight:800}

/* About */
.prose p{margin:0 0 18px;color:var(--muted)}
.founder-note{
  margin-top:32px;padding:22px 24px;
  display:flex;flex-direction:column;
  background:var(--paper);
  border-left:6px solid var(--blue);
  border-radius:0 12px 12px 0;
}
.founder-note strong{font-size:20px;line-height:1.35}
.founder-note span{color:var(--muted)}

/* Donate */
.donate{background:var(--blue);color:#fff}
.donate h2{color:#fff}
.donate p{margin:0;color:#dce8f6}
.donate-grid{
  display:grid;
  grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);
  gap:clamp(28px,6vw,80px);
  align-items:center;
}
.donate-actions{display:flex;flex-direction:column;align-items:flex-start;gap:16px}
.donate .fine-print{font-size:14px;line-height:1.5;color:#cfe0f3}

/* Contact */
.contact{background:var(--paper);padding:clamp(48px,6vw,72px) 0}
.contact-inner{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:28px}
.contact h2{flex:1 1 320px;margin:0;max-width:18em}

/* Footer */
.site-footer{background:var(--asphalt);color:#c3ccd4;padding:56px 0 24px}
.footer-grid{display:flex;flex-wrap:wrap;justify-content:space-between;gap:40px}
.footer-brand img{width:165px;filter:brightness(0) invert(1);opacity:.95}
.footer-grid p{margin:14px 0 0;font-size:16px}
.footer-links{display:flex;flex-wrap:wrap;gap:12px 26px;font-size:16px}
.footer-links a:hover{color:#fff;text-decoration:underline}
.copyright{margin-top:36px;padding-top:18px;border-top:1px solid rgba(255,255,255,.14);font-size:14px}

/* Tablet */
@media (max-width:900px){
  .hero-grid,.two-col,.community-grid,.donate-grid,.message-grid{grid-template-columns:1fr}
  .programs{grid-template-columns:1fr}
  .hero-sign{padding-top:0}
  .post{min-height:56px}
}

/* Phone */
@media (max-width:800px){
  .menu-toggle{display:block}
  .nav{
    display:none;
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:14px 20px 20px;
    background:#fff;
    border-bottom:1px solid var(--line);
  }
  .nav.open{display:flex}
  .nav a{padding:12px 4px}
  .nav .nav-button{text-align:center;margin-top:8px}
}

@media (max-width:700px){
  body{font-size:17px}
  .container{width:min(100% - 32px,1120px)}
  .brand img{width:132px;max-height:58px}
  .footer-brand img{width:145px}
  .contact-inner{flex-direction:column;align-items:flex-start}
  .program{gap:18px}
}