/* ============================================================
   Antipode — original travel journal
   No external fonts, assets, or dependencies.
   ============================================================ */

:root{
  --bg:#b9faf8;
  --bg-soft:#b8d0eb;
  --ink:#2b1338;
  --muted:#5a3a6e;
  --line:rgba(43,19,56,.18);
  --line-soft:rgba(43,19,56,.09);
  --accent:#a663cc;
  --accent-2:#b298dc;

  --serif:"Iowan Old Style","Palatino Linotype","Book Antiqua",Palatino,Georgia,"Times New Roman",serif;
  --sans:"Helvetica Neue",Helvetica,Arial,"Segoe UI",sans-serif;
  --mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;

  --pad:clamp(1.25rem,4vw,4.5rem);
  --head-h:64px;
  --ease:cubic-bezier(.19,1,.22,1);
}

*{box-sizing:border-box}

html{
  scroll-behavior:smooth;
  -webkit-text-size-adjust:100%;
}

body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}

/* film grain */
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:9999;
  pointer-events:none;
  opacity:.05;
  mix-blend-mode:multiply;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.82' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='0.6'/%3E%3C/svg%3E");
  background-size:160px 160px;
}

::selection{background:var(--accent);color:#fff}

a{color:inherit}
img,svg{display:block;max-width:100%}
button,input{font:inherit;color:inherit}
:focus-visible{outline:1px solid var(--accent);outline-offset:4px}

.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
}

.skip{
  position:fixed;top:-100px;left:1rem;z-index:10000;
  background:var(--ink);color:var(--bg);
  padding:.7rem 1rem;text-decoration:none;
  font-family:var(--mono);font-size:11px;letter-spacing:.12em;text-transform:uppercase;
}
.skip:focus{top:1rem}

.progress{
  position:fixed;top:0;left:0;right:0;height:2px;z-index:900;
  background:transparent;pointer-events:none;
}
.progress span{
  display:block;height:100%;width:0;
  background:var(--accent);
}

/* ---------- header ---------- */

.site-head{
  position:fixed;top:0;left:0;right:0;z-index:800;
  height:var(--head-h);
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:1rem;
  padding:0 var(--pad);
  border-bottom:1px solid transparent;
  transition:background .4s ease,border-color .4s ease,backdrop-filter .4s ease;
}
.site-head.is-stuck{
  background:rgba(185,250,248,.82);
  border-bottom-color:var(--line-soft);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}

.brand{
  font-family:var(--serif);
  font-size:1.35rem;
  letter-spacing:-.02em;
  text-decoration:none;
  white-space:nowrap;
}
.brand .deg{color:var(--accent);margin-left:.05em}

.nav{
  display:flex;gap:clamp(1rem,2.6vw,2.4rem);
  justify-content:center;
}
.nav a{
  font-family:var(--mono);
  font-size:10px;
  letter-spacing:.18em;
  text-transform:uppercase;
  color:var(--muted);
  text-decoration:none;
  padding:.4rem 0;
  transition:color .25s ease;
}
.nav a:hover{color:var(--ink)}

.nav-cta{
  justify-self:end;
  font-family:var(--mono);
  font-size:10px;
  letter-spacing:.16em;
  text-transform:uppercase;
  text-decoration:none;
  color:var(--ink);
  border:1px solid var(--line);
  padding:.55rem .9rem;
  border-radius:999px;
  transition:border-color .25s ease,background .25s ease,color .25s ease;
}
.nav-cta:hover{border-color:var(--ink);background:var(--ink);color:var(--bg)}

/* ---------- hero ---------- */

.hero{
  position:relative;
  min-height:100svh;
  padding:calc(var(--head-h) + 1.4rem) var(--pad) 1.6rem;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  overflow:hidden;
}

.hero-art{position:absolute;inset:0;pointer-events:none;z-index:0}

.hero-sun{
  position:absolute;
  width:min(72vw,820px);
  aspect-ratio:1;
  right:-10vw;
  top:-16vh;
  border-radius:50%;
  background:
    radial-gradient(circle at 38% 34%,
      rgba(166,99,204,.55) 0%,
      rgba(178,152,220,.32) 38%,
      rgba(185,250,248,.10) 58%,
      transparent 70%);
  filter:blur(6px);
}

.hero-rings{
  position:absolute;
  inset:-25%;
  background:repeating-radial-gradient(circle at 74% 16%,
    transparent 0 48px,
    rgba(43,19,56,.07) 49px 50px);
  -webkit-mask-image:radial-gradient(circle at 74% 16%,#000 0%,transparent 68%);
  mask-image:radial-gradient(circle at 74% 16%,#000 0%,transparent 68%);
}

.hero-horizon{
  position:absolute;left:0;right:0;top:63%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(43,19,56,.28) 30%,rgba(43,19,56,.28) 70%,transparent);
}

.hero-top{
  position:relative;z-index:1;
  display:flex;justify-content:space-between;align-items:baseline;
  font-family:var(--mono);
  font-size:10px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--muted);
}
.hero-top-mid{display:none}

.hero-title{
  position:relative;z-index:1;
  margin:clamp(1.5rem,5vh,4rem) 0 0;
  font-family:var(--serif);
  font-weight:400;
  font-size:clamp(4.2rem,17.5vw,17rem);
  line-height:.78;
  letter-spacing:-.055em;
}
.hero-title .line{display:block}
.hero-title .line-b{padding-left:13vw;font-style:italic}

.hero-sub{
  position:relative;z-index:1;
  margin:auto 0 0;
  padding-top:2rem;
  width:100%;
  max-width:min(46ch,100%);
  color:var(--muted);
  font-size:clamp(1rem,1.35vw,1.12rem);
  line-height:1.65;
}

.hero-foot{
  position:relative;z-index:1;
  margin-top:clamp(2rem,6vh,4rem);
  padding-top:1.1rem;
  border-top:1px solid var(--line);
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:2rem;
  flex-wrap:wrap;
}

.scroll-cue{
  display:inline-flex;align-items:center;gap:.6rem;
  font-family:var(--mono);
  font-size:10px;letter-spacing:.18em;text-transform:uppercase;
  text-decoration:none;color:var(--muted);
}
.scroll-cue .dot{
  width:6px;height:6px;border-radius:50%;
  background:var(--accent);
  animation:pulse 2.4s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{transform:scale(1);opacity:1}
  50%{transform:scale(1.7);opacity:.45}
}

.hero-stats{
  display:flex;gap:clamp(1.2rem,4vw,3.6rem);
  margin:0;
}
.hero-stats div{margin:0}
.hero-stats dt{
  font-family:var(--mono);
  font-size:9px;letter-spacing:.16em;text-transform:uppercase;
  color:var(--muted);
}
.hero-stats dd{
  margin:.25rem 0 0;
  font-family:var(--serif);
  font-size:clamp(1.2rem,1.8vw,1.6rem);
  line-height:1;
}

/* ---------- ticker ---------- */

.ticker{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  overflow:hidden;
  padding:.85rem 0;
}
.ticker-track{
  display:flex;align-items:center;gap:2.2rem;
  width:max-content;
  animation:marquee 42s linear infinite;
  font-family:var(--mono);
  font-size:10px;letter-spacing:.24em;text-transform:uppercase;
  color:var(--muted);
}
.ticker-track .sep{color:var(--accent)}
@keyframes marquee{
  from{transform:translate3d(0,0,0)}
  to{transform:translate3d(-50%,0,0)}
}

/* ---------- sections ---------- */

.section{
  padding:clamp(4rem,10vh,8rem) var(--pad);
}

.section-head{
  display:grid;
  grid-template-columns:auto 1fr auto;
  align-items:baseline;
  gap:1.5rem;
  border-top:1px solid var(--line);
  padding-top:1rem;
  margin-bottom:clamp(2.5rem,6vh,5rem);
}
.section-head .num,
.head-note{
  font-family:var(--mono);
  font-size:10px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--muted);
}
.head-note{text-align:right}
.section-head h2{
  margin:0;
  font-family:var(--serif);
  font-weight:400;
  font-size:clamp(1.35rem,2.2vw,1.9rem);
  letter-spacing:-.01em;
}

/* ---------- premise ---------- */

.premise .lede{
  margin:0 0 clamp(2.5rem,7vh,5rem);
  max-width:19ch;
  font-family:var(--serif);
  font-weight:400;
  font-size:clamp(1.9rem,4.6vw,3.8rem);
  line-height:1.1;
  letter-spacing:-.025em;
}

.premise-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:clamp(1.5rem,3vw,3rem);
  border-top:1px solid var(--line);
  padding-top:1.5rem;
}
.premise-grid p{
  margin:0;
  max-width:38ch;
  color:var(--muted);
  font-size:.97rem;
  line-height:1.75;
}

/* ---------- destination cards ---------- */

.grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
}

.card{
  background:var(--bg);
  display:flex;
  flex-direction:column;
  min-width:0;
}

.media{
  position:relative;
  aspect-ratio:4/3;
  overflow:hidden;
  background:var(--bg);
  isolation:isolate;
}

.art{
  position:absolute;inset:0;z-index:0;
  background:
    radial-gradient(circle at 72% 20%,rgba(185,250,248,.85),transparent 34%),
    repeating-radial-gradient(circle at 26% 118%,
      transparent 0 27px,
      rgba(43,19,56,.12) 28px 29px),
    radial-gradient(110% 85% at 15% 0%,var(--c1),transparent 65%),
    radial-gradient(95% 95% at 88% 38%,var(--c2),transparent 62%),
    linear-gradient(180deg,var(--c3),var(--c4));
  transition:transform 1.2s var(--ease);
}
.card:hover .art{transform:scale(1.05)}

.art::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(185,250,248,0) 45%,rgba(185,250,248,.32));
}

.idx,.clock,.coords{
  position:absolute;z-index:2;
  font-family:var(--mono);
  font-size:9.5px;letter-spacing:.16em;text-transform:uppercase;
}
.idx{top:1rem;left:1rem;color:rgba(43,19,56,.9)}
.clock{top:.9rem;right:1rem;color:rgba(43,19,56,.9);display:flex;align-items:center;gap:.45rem}
.clock::before{
  content:"";width:5px;height:5px;border-radius:50%;
  background:var(--accent);
}
.coords{bottom:1rem;left:1rem;color:rgba(43,19,56,.7)}

.card-body{
  display:flex;flex-direction:column;gap:.85rem;
  padding:clamp(1.2rem,2vw,1.8rem);
  flex:1;
}
.kicker{
  display:flex;justify-content:space-between;gap:1rem;
  font-family:var(--mono);
  font-size:9.5px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--muted);
}
.card-body h3{
  margin:0;
  font-family:var(--serif);
  font-weight:400;
  font-size:clamp(1.5rem,2.4vw,2.05rem);
  line-height:1.05;
  letter-spacing:-.015em;
}
.card-body p{
  margin:0;
  max-width:44ch;
  color:var(--muted);
  font-size:.95rem;
  line-height:1.68;
}
.facts{
  list-style:none;
  display:flex;flex-wrap:wrap;gap:.4rem;
  margin:auto 0 0;padding:0;
}
.facts li{
  font-family:var(--mono);
  font-size:9px;letter-spacing:.12em;text-transform:uppercase;
  color:rgba(43,19,56,.78);
  border:1px solid var(--line);
  border-radius:999px;
  padding:.35rem .6rem;
  white-space:nowrap;
}

/* ---------- field notes ---------- */

.notes-list{border-top:1px solid var(--line)}

.note{
  display:grid;
  grid-template-columns:auto 1fr auto;
  gap:clamp(1rem,4vw,4rem);
  padding:clamp(1.5rem,3.4vw,2.6rem) 0;
  border-bottom:1px solid var(--line);
  text-decoration:none;
  color:inherit;
  transition:background .3s ease;
}
.note:hover{background:rgba(43,19,56,.035)}

.note-num{
  font-family:var(--mono);
  font-size:10px;letter-spacing:.16em;
  color:var(--muted);
  padding-top:.5rem;
}
.note-main h3{
  margin:0 0 .55rem;
  font-family:var(--serif);
  font-weight:400;
  font-size:clamp(1.35rem,2.1vw,1.8rem);
  line-height:1.15;
  letter-spacing:-.01em;
}
.note-main p{
  margin:0;
  max-width:64ch;
  color:var(--muted);
  font-size:.95rem;
  line-height:1.7;
}
.note-meta{
  display:flex;
  gap:1.6rem;
  align-items:flex-start;
  font-family:var(--mono);
  font-size:9.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--muted);
  white-space:nowrap;
  padding-top:.4rem;
}
.note-meta .arrow{
  color:var(--ink);
  transition:transform .35s var(--ease);
}
.note:hover .arrow{transform:translate(3px,-3px)}

/* ---------- practical ---------- */

.practical-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:clamp(2rem,4vw,4rem);
  border-top:1px solid var(--line);
  padding-top:1.6rem;
}
.practical-grid h3{
  margin:0 0 1rem;
  font-family:var(--mono);
  font-size:10px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--ink);
  font-weight:400;
}
.practical-grid p{
  margin:0;
  color:var(--muted);
  font-size:.95rem;
  line-height:1.75;
  max-width:36ch;
}

.plain,.bullets{list-style:none;margin:0;padding:0}
.plain li{
  display:flex;justify-content:space-between;gap:1rem;
  padding:.55rem 0;
  border-bottom:1px solid var(--line-soft);
  font-size:.9rem;
}
.plain li span:first-child{color:var(--ink)}
.plain li span:last-child{
  font-family:var(--mono);
  font-size:9.5px;letter-spacing:.1em;text-transform:uppercase;
  color:var(--muted);
  text-align:right;
}
.bullets li{
  position:relative;
  padding-left:1.1rem;
  margin-bottom:.5rem;
  color:var(--muted);
  font-size:.93rem;
  line-height:1.6;
}
.bullets li::before{
  content:"—";
  position:absolute;left:0;
  color:var(--accent);
}

/* ---------- letter ---------- */

.letter{
  border-top:1px solid var(--line);
  padding:clamp(4rem,11vh,9rem) var(--pad);
  background:
    radial-gradient(60% 80% at 85% 10%,rgba(166,99,204,.22),transparent 65%),
    radial-gradient(55% 70% at 10% 90%,rgba(178,152,220,.35),transparent 60%),
    var(--bg-soft);
}
.letter-inner{max-width:1100px}
.letter .num{
  font-family:var(--mono);
  font-size:10px;letter-spacing:.18em;text-transform:uppercase;
  color:var(--muted);
}
.letter-title{
  margin:.6rem 0 1.5rem;
  font-family:var(--serif);
  font-weight:400;
  font-size:clamp(3.8rem,13vw,10.5rem);
  line-height:.86;
  letter-spacing:-.045em;
  font-style:italic;
}
.letter-sub{
  margin:0 0 clamp(2rem,5vh,3rem);
  max-width:48ch;
  color:var(--muted);
  line-height:1.7;
}
.letter-form{
  display:flex;
  align-items:center;
  gap:1rem;
  max-width:560px;
  border-bottom:1px solid var(--ink);
  padding-bottom:.4rem;
}
.letter-form input{
  flex:1;
  min-width:0;
  background:transparent;
  border:0;
  padding:.8rem 0;
  font-family:var(--serif);
  font-size:1.15rem;
  color:var(--ink);
}
.letter-form input::placeholder{color:rgba(43,19,56,.4)}
.letter-form input:focus{outline:none}
.letter-form button{
  background:transparent;
  border:0;
  padding:.6rem 0;
  cursor:pointer;
  font-family:var(--mono);
  font-size:10px;letter-spacing:.18em;text-transform:uppercase;
  white-space:nowrap;
  transition:color .25s ease;
}
.letter-form button:hover{color:var(--accent)}
.letter-status{
  min-height:1.2em;
  margin:.9rem 0 0;
  font-family:var(--mono);
  font-size:10px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--accent);
}

/* ---------- footer ---------- */

.site-foot{
  border-top:1px solid var(--line);
  padding:2.5rem var(--pad) 2rem;
}
.foot-top{
  display:flex;justify-content:space-between;align-items:flex-start;
  gap:2rem;flex-wrap:wrap;
  padding-bottom:2.5rem;
  border-bottom:1px solid var(--line-soft);
}
.foot-top p{
  margin:0;max-width:36ch;
  color:var(--muted);font-size:.85rem;line-height:1.6;
  text-align:right;
}
.foot-bottom{
  display:flex;justify-content:space-between;align-items:center;
  gap:1.5rem;flex-wrap:wrap;
  padding-top:1.4rem;
  font-family:var(--mono);
  font-size:9.5px;letter-spacing:.13em;text-transform:uppercase;
  color:var(--muted);
}
.foot-bottom a{text-decoration:none;transition:color .25s ease}
.foot-bottom a:hover{color:var(--ink)}
.to-top{color:var(--ink)}

/* ---------- reveal ---------- */

.reveal{
  opacity:0;
  transform:translateY(28px);
  transition:opacity .9s ease,transform .9s var(--ease);
  will-change:opacity,transform;
}
.reveal.in{opacity:1;transform:none}

/* ---------- responsive ---------- */

@media (max-width:860px){
  .grid{grid-template-columns:1fr}
  .premise-grid{grid-template-columns:1fr}
  .practical-grid{grid-template-columns:1fr;gap:2.5rem}
  .practical-grid p{max-width:60ch}
  .nav{display:none}
  .site-head{grid-template-columns:1fr auto}
  .note{grid-template-columns:auto 1fr}
  .note-meta{grid-column:2;padding-top:1rem;gap:1.2rem}
}

@media (max-width:640px){
  :root{--head-h:56px}
  .hero-title{font-size:clamp(3.6rem,23vw,7rem)}
  .hero-title .line-b{padding-left:8vw}
  .hero-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:1rem 2rem;width:100%}
  .hero-foot{gap:1.4rem}
  .nav-cta{display:none}
  .note-meta{flex-wrap:wrap;gap:.6rem 1.2rem}
  .note-meta .arrow{display:none}
  .section-head{grid-template-columns:auto 1fr;row-gap:.4rem}
  .head-note{grid-column:2;text-align:left}
  .letter-form{flex-wrap:wrap}
  .letter-form button{width:100%;text-align:left}
  .foot-top p{text-align:left}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .reveal{opacity:1;transform:none}
  .ticker-track{animation:none}
  .scroll-cue .dot{animation:none}
}