/* ===================================================================
   Challenge Cup Air Rally — shared stylesheet
   Palette: aeronautical chart paper + instrument-panel ink + brass/rust
   =================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Big+Shoulders+Display:wght@500;600;700;800&family=Public+Sans:ital,wght@0,400;0,500;0,600;0,700;1,400&display=swap');

:root{
  --ink:        #1B2A41;
  --ink-light:  #2C4262;
  --parchment:  #F1E9D2;
  --parchment-dk:#E4D9B8;
  --brass:      #B8862B;
  --rust:       #A63C2E;
  --rust-dark:  #8A3025;
  --charcoal:   #262420;
  --white:      #FFFFFF;
  --line:       rgba(27,42,65,0.16);

  --font-head: 'Big Shoulders Display', sans-serif;
  --font-body: 'Public Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --max: 1100px;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0;
  background: var(--parchment);
  color: var(--charcoal);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img{ max-width:100%; display:block; }
a{ color: inherit; }

h1,h2,h3,h4{
  font-family: var(--font-head);
  color: var(--ink);
  line-height: 1.05;
  margin: 0 0 0.5em 0;
  font-weight: 700;
  letter-spacing: 0.01em;
}
h1{ font-size: clamp(2.6rem, 6vw, 4.6rem); font-weight: 800; }
h2{ font-size: clamp(1.8rem, 3.4vw, 2.6rem); }
h3{ font-size: 1.3rem; font-weight: 600; }

p{ margin: 0 0 1.1em 0; max-width: 68ch; }
.lede{ font-size: 1.15rem; color: var(--ink-light); }

ul{ margin: 0 0 1.1em 0; padding-left: 1.25rem; max-width: 68ch; }
ul li{ margin-bottom: 0.4rem; }
ul li::marker{ color: var(--brass); }

.container{
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.skip-link{
  position:absolute; left:-999px; top:0;
  background:var(--white); color:var(--ink); padding: 0.75rem 1.25rem;
  z-index: 999; border-radius: 0 0 6px 0;
}
.skip-link:focus{ left:0; }

/* ---------------- Banner nav (not a dropdown menu) ---------------- */
.site-header{
  background: var(--ink);
  color: var(--parchment);
  position: sticky; top:0; z-index: 100;
  border-bottom: 3px solid var(--brass);
}
.header-inner{
  max-width: var(--max);
  margin:0 auto;
  padding: 0.85rem 1.5rem;
  display:flex;
  align-items:flex-start;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.brand-block{
  display:flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.7rem;
  flex-shrink:0;
}
.brand{
  display:flex; align-items:center; gap:0.6rem;
  text-decoration:none;
  color: var(--white);
}
.brand-text{
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.15rem;
  line-height: 1.1;
  letter-spacing: 0.02em;
  color: var(--white);
}
.brand-text span{ display:block; font-size:0.62rem; font-weight:500; color: var(--brass); font-family: var(--font-body); letter-spacing: 0.14em; }

.header-logo-img{
  height: 114px;
  width: 114px;
  border-radius: 50%;
}

.nav-toggle{
  display:none;
  margin-left:auto;
  background:none;
  border: 1px solid var(--parchment);
  color: var(--parchment);
  padding: 0.4rem 0.7rem;
  border-radius: 4px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  cursor:pointer;
}

.banner-nav{
  list-style:none;
  display:flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.2rem 1.3rem;
  margin: 0 0 0 auto;
  padding:0;
  font-size: 0.92rem;
  align-items:center;
  padding-top: 0.5rem;
}
.banner-nav a{
  text-decoration:none;
  color: var(--parchment);
  padding: 0.4rem 0.1rem;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}
.banner-nav a:hover,
.banner-nav a[aria-current="page"]{
  border-bottom-color: var(--brass);
  color: var(--white);
}
.nav-register{
  flex-shrink:0;
  background: var(--rust);
  color: var(--white) !important;
  padding: 0.5rem 1rem !important;
  border-radius: 3px;
  font-weight:600;
  border-bottom: none !important;
}
.nav-register:hover{ background: var(--rust-dark); }

@media (max-width: 880px){
  .nav-toggle{ display:inline-block; }
  .banner-nav{
    display:none;
    flex-direction:column;
    width:100%;
    align-items: flex-start;
    justify-content: flex-start;
    order:3;
    margin: 0.75rem 0 0.25rem 0;
    gap: 0.65rem;
    padding-top: 0;
  }
  .banner-nav.open{ display:flex; }
  .header-logo-img{ height: 72px; width: 72px; }
}

/* ---------------- Hero ---------------- */
.hero{
  position:relative;
  background: linear-gradient(180deg, var(--ink) 0%, var(--ink-light) 100%);
  color: var(--white);
  overflow:hidden;
  padding: 5rem 0 6.5rem 0;
}
.hero-inner{
  max-width: var(--max);
  margin:0 auto;
  padding: 0 1.5rem;
  position:relative;
  z-index: 2;
}
.hero-eyebrow{
  color: var(--brass);
  font-weight:600;
  letter-spacing: 0.08em;
  margin-bottom: 0.75rem;
  font-size: 0.95rem;
}
.hero h1{ color: var(--white); max-width: 16ch; }
.hero .lede{ color: rgba(241,233,210,0.85); max-width: 52ch; margin-top: 1rem;}
.hero-meta{
  display:flex; flex-wrap:wrap; gap: 1.6rem;
  margin-top: 2rem;
}
.hero-meta div{ border-left: 2px solid var(--brass); padding-left: 0.75rem; }
.hero-meta strong{ display:block; font-family: var(--font-head); font-size:1.15rem; }
.hero-meta span{ font-size: 0.82rem; color: rgba(241,233,210,0.7); }
.hero-cta{ display:flex; gap:1rem; margin-top: 2.25rem; flex-wrap: wrap; }

.hero-art{ position:absolute; top:0; right:0; bottom:0; left:0; z-index:1; opacity: 0.9; }
.hero-art svg{ width:100%; height:100%; }

.hero-plane-img{
  position: absolute;
  left: 80.6%;
  top: 25%;
  width: 140px;
  height: auto;
  transform-origin: 58.5px 65.6px;
  transform: translate(-58.5px, -65.6px) rotate(10deg);
  filter: drop-shadow(0 10px 20px rgba(0,0,0,0.35));
}
@media (max-width: 700px){
  .hero-plane-img{
    width: 84px;
    left: 78%;
    top: 22%;
    transform-origin: 35.1px 39.3px;
    transform: translate(-35.1px, -39.3px) rotate(10deg);
  }
}

.flight-path{
  stroke-dasharray: 1400;
  stroke-dashoffset: 1400;
  animation: draw 2.6s ease-out forwards 0.3s;
}
@media (prefers-reduced-motion: reduce){
  .flight-path{ animation: none; stroke-dashoffset: 0; }
}
@keyframes draw{ to{ stroke-dashoffset: 0; } }

.page-hero{
  background: var(--ink);
  color: var(--white);
  padding: 3.2rem 0;
  border-bottom: 3px solid var(--brass);
}
.page-hero .container p{ color: rgba(241,233,210,0.8); }
.page-hero h1{ color: var(--white); font-size: clamp(2.1rem, 4.5vw, 3rem); }

/* ---------------- Buttons ---------------- */
.btn{
  display:inline-block;
  font-family: var(--font-body);
  font-weight:600;
  text-decoration:none;
  padding: 0.85rem 1.6rem;
  border-radius: 3px;
  border: 2px solid transparent;
  cursor:pointer;
  font-size: 0.98rem;
}
.btn-primary{ background: var(--rust); color: var(--white); }
.btn-primary:hover{ background: var(--rust-dark); }
.btn-ghost{ background:transparent; color: var(--white); border-color: rgba(241,233,210,0.5); }
.btn-ghost:hover{ border-color: var(--white); }
.btn-outline{ background:transparent; color: var(--ink); border-color: var(--ink); }
.btn-outline:hover{ background: var(--ink); color: var(--white); }

/* ---------------- Sections & panels ---------------- */
section{ padding: 4rem 0; }
.section-alt{ background: var(--parchment-dk); }
.divider{ border:0; height:1px; background: var(--line); margin:0; }

.panel{ background: var(--white); border: 1px solid var(--line); padding: 1.75rem; }

.grid{ display:grid; gap: 1.5rem; }
.grid-3{ grid-template-columns: repeat(3, 1fr); }
.grid-2{ grid-template-columns: repeat(2, 1fr); }
@media (max-width: 800px){ .grid-3, .grid-2{ grid-template-columns: 1fr; } }

.section-head{ max-width: 62ch; margin-bottom: 2.25rem; }
.section-head .kicker{
  display:block; color: var(--brass); font-weight:700;
  font-size: 0.85rem; letter-spacing: 0.06em; margin-bottom: 0.5rem;
}

.stat{ border-top: 3px solid var(--brass); padding-top: 0.75rem; }
.stat strong{ display:block; font-family: var(--font-head); font-size: 2.2rem; color: var(--ink); }
.stat span{ font-size: 0.9rem; color: var(--ink-light); }

table{ width:100%; border-collapse: collapse; margin-bottom: 1.5rem; }
th, td{ text-align:left; padding: 0.65rem 0.75rem; border-bottom: 1px solid var(--line); font-size: 0.95rem; }
th{ font-family: var(--font-head); font-weight:600; color: var(--ink); background: var(--parchment-dk); }

.placeholder-note{
  background: #FBF3D9;
  border: 1px dashed var(--brass);
  color: var(--ink);
  padding: 0.85rem 1.1rem;
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
}

.sponsor-tier{ margin-bottom: 2rem; }
.sponsor-tier h3{ color: var(--brass); margin-bottom:0.9rem; }
.sponsor-grid{ display:grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.sponsor-box{
  border: 1px solid var(--line);
  background: var(--white);
  aspect-ratio: 3 / 2;
  display:flex; align-items:center; justify-content:center;
  color: var(--ink-light);
  font-size: 0.82rem;
  text-align:center;
  padding: 0.5rem;
}
@media (max-width: 700px){ .sponsor-grid{ grid-template-columns: repeat(2,1fr); } }

.reg-form{ max-width: 480px; }
.reg-form label{ display:block; font-weight:600; margin-bottom: 0.4rem; color: var(--ink); }
.reg-form input[type="text"],
.reg-form input[type="email"]{
  width:100%;
  padding: 0.8rem 0.9rem;
  border: 1px solid var(--line);
  background: var(--white);
  font-family: var(--font-body);
  font-size: 1rem;
  margin-bottom: 1.25rem;
}
.reg-form input:focus, a:focus, button:focus{
  outline: 3px solid var(--brass);
  outline-offset: 2px;
}

/* ---------------- Footer ---------------- */
.site-footer{
  background: var(--ink);
  color: rgba(241,233,210,0.75);
  padding: 3rem 0 2rem 0;
  margin-top: 2rem;
}
.footer-grid{ display:grid; grid-template-columns: 2fr 1fr 1fr; gap: 2rem; margin-bottom: 2rem; }
@media (max-width: 700px){ .footer-grid{ grid-template-columns: 1fr; } }
.site-footer h4{ color: var(--white); font-size: 1rem; margin-bottom: 0.9rem; }
.site-footer ul{ list-style:none; padding:0; margin:0; }
.site-footer li{ margin-bottom: 0.5rem; }
.site-footer a{ text-decoration:none; color: rgba(241,233,210,0.75); }
.site-footer a:hover{ color: var(--white); }
.footer-bottom{
  border-top: 1px solid rgba(241,233,210,0.15);
  padding-top: 1.5rem;
  font-size: 0.85rem;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:0.5rem;
}