/* ==========================================================================
   PERDIDO RIVER RUN — shared design tokens
   Palette pulled from the river itself: tannin-black water, cypress green,
   sandbar gold, rust-red bark. Display type is a condensed trail-sign face,
   body copy is a quiet serif, data reads in mono like a surveyor's mile log.
   ========================================================================== */

:root {
  /* color */
  --swamp-black: #0a0d0a;
  --water-dark:  #14201a;
  --water:       #1e3129;
  --cypress:     #2f4a3a;
  --moss:        #5c7a5f;
  --sand:        #e9dfc4;
  --sand-bright: #f6efd9;
  --amber:       #c9963f;
  --amber-bright:#e8b969;
  --rust:        #9a4f34;

  /* type */
  --font-display: "Bebas Neue", "Arial Narrow", sans-serif;
  --font-body: "Source Serif 4", Georgia, serif;
  --font-mono: "IBM Plex Mono", "Courier New", monospace;

  /* rhythm */
  --gap-xs: 0.5rem;
  --gap-sm: 1rem;
  --gap-md: 2rem;
  --gap-lg: 4rem;
  --gap-xl: 8rem;

  --radius: 3px;
  --max-w: 1100px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--swamp-black);
  color: var(--sand);
  font-family: var(--font-body);
  font-size: 1.05rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg { display: block; max-width: 100%; }

a { color: var(--amber-bright); text-decoration-color: rgba(201,150,63,0.4); }
a:hover { text-decoration-color: var(--amber-bright); }

.wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--gap-md);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--amber);
}

h1, h2, h3 {
  font-family: var(--font-display);
  letter-spacing: 0.02em;
  color: var(--sand-bright);
  margin: 0;
  line-height: 1.02;
}

h2 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
h3 { font-size: clamp(1.4rem, 3vw, 1.9rem); }

p { margin: 0 0 1em; color: var(--sand); }
p.lede { font-size: 1.2rem; color: var(--sand-bright); }

.mono { font-family: var(--font-mono); }

.divider {
  width: 48px;
  height: 2px;
  background: var(--amber);
  margin: var(--gap-sm) 0;
  border: 0;
}

.btn {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--swamp-black);
  background: var(--amber-bright);
  padding: 0.85em 1.6em;
  border-radius: var(--radius);
  text-decoration: none;
  transition: transform 0.15s ease, background 0.15s ease;
}
.btn:hover { background: var(--sand-bright); transform: translateY(-2px); }

.btn-ghost {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--sand-bright);
  border: 1px solid var(--moss);
  padding: 0.8em 1.5em;
  border-radius: var(--radius);
  text-decoration: none;
  transition: border-color 0.15s ease, color 0.15s ease;
}
.btn-ghost:hover { border-color: var(--amber-bright); color: var(--amber-bright); }

nav.top {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--gap-sm) var(--gap-md);
  background: rgba(10,13,10,0.85);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid rgba(92,122,95,0.25);
}
nav.top .brand {
  font-family: var(--font-display);
  letter-spacing: 0.08em;
  font-size: 1.2rem;
  color: var(--sand-bright);
  text-decoration: none;
}
nav.top .links a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--sand);
  text-decoration: none;
  margin-left: var(--gap-md);
}
nav.top .links a:hover { color: var(--amber-bright); }

footer.site {
  padding: var(--gap-lg) var(--gap-md) var(--gap-md);
  text-align: center;
  color: var(--moss);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

@media (max-width: 640px) {
  .wrap { padding: 0 var(--gap-sm); }
  nav.top .links a { margin-left: var(--gap-sm); font-size: 0.7rem; }
}