:root {
  /* IBM Plex Mono** from Google Fonts for tiny coordinates */
  --terracotta: #C86F45;
  --umber: #3B241A;
  --plaster: #F3E1C7;
  --rose: #DFA07A;
  --olive: #4E563A;
  --plum: #5C3A4B;
  --glint: #D8A85B;
  --display: "Oswald", "Arial Narrow", system-ui, sans-serif;
  --condensed: "Barlow Condensed", "Arial Narrow", system-ui, sans-serif;
  --body: "Manrope", system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  background: var(--plaster);
}

body {
  margin: 0;
  color: var(--umber);
  font-family: var(--body);
  background: var(--plaster);
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

.grain {
  position: fixed;
  inset: 0;
  z-index: 80;
  pointer-events: none;
  opacity: .34;
  mix-blend-mode: multiply;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(59, 36, 26, .13) 0 1px, transparent 1.4px),
    radial-gradient(circle at 70% 60%, rgba(200, 111, 69, .16) 0 1px, transparent 1.8px),
    linear-gradient(115deg, transparent, rgba(216, 168, 91, .08), transparent);
  background-size: 19px 19px, 31px 31px, 100% 100%;
}

.dust-field {
  position: fixed;
  inset: 0;
  z-index: 35;
  pointer-events: none;
  overflow: hidden;
}

.dust {
  position: absolute;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: rgba(216, 168, 91, .58);
  filter: blur(.4px);
  animation: drift var(--duration) linear infinite;
}

@keyframes drift {
  from { transform: translate3d(0, 0, 0); opacity: 0; }
  12% { opacity: .75; }
  to { transform: translate3d(var(--x), -115vh, 0); opacity: 0; }
}

.ridge-nav {
  position: fixed;
  top: 24px;
  left: 28px;
  right: 28px;
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--umber);
}

.wordmark {
  font-family: var(--display);
  font-size: 1.1rem;
  letter-spacing: .22em;
  padding: 10px 14px;
  border: 1px solid rgba(59, 36, 26, .28);
  border-radius: 2px;
  background: rgba(243, 225, 199, .42);
  box-shadow: inset 0 0 0 1px rgba(216, 168, 91, .22);
}

.trail-labels {
  display: flex;
  gap: 18px;
  font-family: var(--condensed);
  font-size: .96rem;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.trail-labels a {
  opacity: .62;
  transition: opacity .35s ease, color .35s ease;
}

.trail-labels a.active, .trail-labels a:hover { opacity: 1; color: var(--terracotta); }

.compass {
  width: 38px;
  height: 38px;
  border: 1px solid rgba(78, 86, 58, .5);
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(243, 225, 199, .32);
}

.compass span {
  width: 3px;
  height: 16px;
  background: var(--olive);
  border-radius: 8px;
  transform-origin: 50% 80%;
}

.switchback {
  position: fixed;
  inset: 0;
  z-index: 45;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
}

.trail-shadow, .trail-light {
  fill: none;
  vector-effect: non-scaling-stroke;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.trail-shadow { stroke: rgba(59, 36, 26, .18); stroke-width: 5; }
.trail-light { stroke: var(--glint); stroke-width: 2.2; filter: drop-shadow(0 0 8px rgba(216, 168, 91, .85)); }

.elevation {
  min-height: 100vh;
  position: relative;
  overflow: hidden;
  scroll-snap-align: start;
  isolation: isolate;
}

#story { scroll-snap-type: y proximity; }

.hero {
  background: linear-gradient(180deg, var(--plaster) 0%, var(--rose) 72%, var(--terracotta) 100%);
}

.sun {
  position: absolute;
  width: 34vmin;
  height: 34vmin;
  left: 58%;
  bottom: 23%;
  border-radius: 50%;
  background: radial-gradient(circle, #F3E1C7 0 12%, var(--glint) 13% 58%, var(--terracotta) 100%);
  box-shadow: 0 0 65px rgba(216, 168, 91, .42);
  transform: translateY(26vmin);
  animation: sunRise 2.4s cubic-bezier(.2,.8,.2,1) forwards;
}

@keyframes sunRise { to { transform: translateY(9vmin); } }

.hero-copy {
  position: absolute;
  top: 21vh;
  left: 8vw;
  max-width: 620px;
  z-index: 5;
}

.kicker {
  font-family: var(--mono);
  color: var(--olive);
  letter-spacing: .14em;
  text-transform: uppercase;
  font-size: .73rem;
  margin: 0 0 18px;
}

h1, h2 {
  font-family: var(--display);
  font-weight: 600;
  letter-spacing: .075em;
  margin: 0;
  line-height: .94;
  text-transform: lowercase;
}

h1 { font-size: clamp(4.8rem, 14vw, 12rem); }
h2 { font-size: clamp(3.1rem, 7.4vw, 7.6rem); max-width: 760px; }

.tagline {
  font-size: clamp(1.1rem, 2vw, 1.65rem);
  max-width: 520px;
  margin: 24px 0 0;
  color: rgba(59, 36, 26, .82);
}

.trail-note {
  position: absolute;
  right: 9vw;
  bottom: 18vh;
  font-family: var(--mono);
  font-size: .75rem;
  color: rgba(59, 36, 26, .66);
  border-top: 1px solid rgba(59, 36, 26, .24);
  padding-top: 12px;
  z-index: 8;
}

.mountains, .route-ridges, .overlook-ridge {
  position: absolute;
  inset: auto 0 0 0;
  height: 42vh;
  z-index: 2;
}

.ridge {
  position: absolute;
  inset: auto -8vw 0 -8vw;
  height: 100%;
  clip-path: polygon(0 78%, 13% 55%, 28% 67%, 43% 38%, 58% 58%, 74% 30%, 100% 70%, 100% 100%, 0 100%);
  transform: translateY(24%);
  animation: ridgeRise 1.8s ease forwards;
}

.ridge-back { background: rgba(92, 58, 75, .32); animation-delay: .1s; }
.ridge-mid { background: rgba(78, 86, 58, .45); clip-path: polygon(0 88%, 16% 52%, 31% 62%, 51% 42%, 69% 66%, 85% 44%, 100% 74%, 100% 100%, 0 100%); animation-delay: .25s; }
.ridge-front { background: var(--umber); clip-path: polygon(0 84%, 17% 68%, 36% 76%, 50% 56%, 65% 70%, 83% 50%, 100% 72%, 100% 100%, 0 100%); animation-delay: .38s; }

@keyframes ridgeRise { to { transform: translateY(0); } }

.contours {
  position: absolute;
  inset: 8vh 4vw;
  opacity: .25;
  background:
    repeating-radial-gradient(ellipse at 22% 40%, transparent 0 26px, rgba(59,36,26,.24) 27px 28px, transparent 29px 54px),
    repeating-radial-gradient(ellipse at 72% 62%, transparent 0 32px, rgba(78,86,58,.18) 33px 34px, transparent 35px 66px);
}

.gather {
  background: linear-gradient(135deg, var(--plaster) 0%, #F3E1C7 34%, var(--rose) 100%);
}

.section-heading { position: absolute; z-index: 7; }
.upper-left { top: 18vh; left: 8vw; }
.upper-right { top: 14vh; right: 7vw; text-align: right; }

.cairn-field {
  position: absolute;
  left: 12vw;
  bottom: 16vh;
  width: min(520px, 78vw);
  height: 370px;
  z-index: 8;
}

.pebble {
  position: absolute;
  font-family: var(--condensed);
  font-size: clamp(1.2rem, 2.3vw, 2rem);
  letter-spacing: .06em;
  color: var(--umber);
  border: 1px solid rgba(59, 36, 26, .22);
  background: linear-gradient(145deg, rgba(243,225,199,.94), rgba(223,160,122,.88));
  border-radius: 48% 52% 44% 56% / 56% 42% 58% 44%;
  box-shadow: 0 22px 50px rgba(59, 36, 26, .13), inset 0 0 0 1px rgba(216, 168, 91, .24);
  padding: 22px 34px;
  cursor: pointer;
  transition: transform .55s cubic-bezier(.18,.8,.2,1), background .35s ease;
}

.pebble:hover, .pebble.settled { background: linear-gradient(145deg, var(--plaster), var(--glint)); }
.pebble.settled { transform: var(--settled) !important; }
.pebble-one { left: 22px; top: 24px; transform: rotate(-7deg); --settled: translate(130px, 178px) rotate(-1deg); }
.pebble-two { right: 12px; top: 88px; transform: rotate(8deg); --settled: translate(-92px, 122px) rotate(2deg); }
.pebble-three { left: 78px; bottom: 92px; transform: rotate(4deg); --settled: translate(56px, -8px) rotate(-2deg); }
.pebble-four { right: 64px; bottom: 8px; transform: rotate(-5deg); --settled: translate(-68px, -74px) rotate(1deg); }

.ground-copy {
  position: absolute;
  max-width: 390px;
  font-size: 1.08rem;
  line-height: 1.7;
  z-index: 7;
}

.lower-right { right: 8vw; bottom: 14vh; }
.terrain-shelf { position: absolute; right: -12vw; bottom: -6vh; width: 66vw; height: 36vh; background: rgba(78,86,58,.45); clip-path: polygon(12% 32%, 45% 18%, 100% 44%, 100% 100%, 0 100%); }

.route {
  background: linear-gradient(160deg, var(--rose) 0%, var(--terracotta) 48%, var(--plaster) 100%);
}

.map-slab {
  position: absolute;
  left: 10vw;
  bottom: 16vh;
  width: min(560px, 78vw);
  min-height: 310px;
  padding: 36px;
  border-radius: 30px 18px 34px 20px;
  background: rgba(243, 225, 199, .78);
  border: 1px solid rgba(59,36,26,.2);
  box-shadow: 0 34px 80px rgba(59, 36, 26, .2), inset 0 0 0 2px rgba(216,168,91,.18);
  z-index: 8;
}

.map-slab p { position: absolute; right: 34px; bottom: 30px; width: 48%; line-height: 1.65; margin: 0; }
.map-line { position: absolute; left: 42px; right: 42px; top: 70px; bottom: 82px; border: 2px solid var(--glint); border-left: 0; border-bottom: 0; border-radius: 0 45px 0 0; transform: skewY(-14deg); filter: drop-shadow(0 0 8px rgba(216,168,91,.7)); }
.map-pin { position: absolute; font-family: var(--mono); font-size: .72rem; color: var(--umber); background: var(--glint); padding: 7px 10px; border-radius: 999px; }
.pin-a { left: 35px; top: 54px; }
.pin-b { left: 48%; top: 118px; }
.pin-c { right: 40px; top: 178px; }
.route-ridges { height: 32vh; background: var(--umber); clip-path: polygon(0 76%, 13% 48%, 27% 70%, 43% 30%, 61% 62%, 80% 35%, 100% 68%, 100% 100%, 0 100%); opacity: .86; }

.refine {
  background: linear-gradient(110deg, var(--umber) 0%, var(--plum) 36%, var(--terracotta) 100%);
  color: var(--plaster);
}

.refine .kicker { color: var(--glint); }
.interior-beam { position: absolute; inset: 0; background: linear-gradient(102deg, transparent 0 28%, rgba(243,225,199,.14) 29% 42%, transparent 43%); }
.panel-stack { position: absolute; right: 8vw; bottom: 11vh; width: min(610px, 82vw); z-index: 8; display: grid; gap: 18px; }
.clay-panel {
  display: grid;
  grid-template-columns: 54px 1fr;
  gap: 20px;
  align-items: center;
  padding: 26px 28px;
  background: linear-gradient(145deg, rgba(243,225,199,.94), rgba(223,160,122,.88));
  color: var(--umber);
  border: 1px solid rgba(216,168,91,.45);
  border-radius: 24px 16px 28px 18px;
  box-shadow: 0 30px 70px rgba(0,0,0,.23), inset 0 0 0 2px rgba(59,36,26,.07);
}
.clay-panel span { font-family: var(--mono); color: var(--olive); }
.clay-panel p { margin: 0; font-size: 1.15rem; line-height: 1.5; }

.overlook {
  color: var(--plaster);
  background: radial-gradient(circle at 75% 22%, rgba(216,168,91,.28), transparent 22%), linear-gradient(180deg, var(--plum) 0%, var(--umber) 100%);
}

.night-contours { position: absolute; inset: 7vh 5vw; opacity: .19; background: repeating-radial-gradient(ellipse at 70% 50%, transparent 0 34px, rgba(243,225,199,.36) 35px 36px, transparent 37px 72px); }
.overlook .kicker { color: var(--glint); }
.lodge-register {
  position: absolute;
  right: 8vw;
  bottom: 16vh;
  width: min(560px, 84vw);
  z-index: 8;
  padding: 26px;
  border: 1px solid rgba(216,168,91,.38);
  background: rgba(243,225,199,.08);
  backdrop-filter: blur(8px);
  border-radius: 24px;
}
.lodge-register label { display: block; font-family: var(--condensed); font-size: 1.5rem; letter-spacing: .05em; margin-bottom: 16px; }
.input-row { display: flex; gap: 10px; }
input {
  flex: 1;
  min-width: 0;
  font: 500 1rem var(--body);
  color: var(--plaster);
  background: rgba(59,36,26,.35);
  border: 1px solid rgba(243,225,199,.28);
  border-radius: 999px;
  padding: 16px 18px;
  outline: none;
}
input::placeholder { color: rgba(243,225,199,.62); }
button[type="submit"] {
  font-family: var(--condensed);
  font-size: 1.1rem;
  letter-spacing: .08em;
  color: var(--umber);
  background: var(--glint);
  border: 0;
  border-radius: 999px;
  padding: 0 24px;
  cursor: pointer;
}
.helper { margin: 14px 0 0; color: rgba(243,225,199,.72); font-size: .94rem; }
.helper.show { color: var(--glint); }
.final-cairn { position: absolute; left: 13vw; bottom: 13vh; width: 210px; height: 230px; z-index: 8; }
.final-cairn span { position: absolute; left: 50%; transform: translateX(-50%); display: block; border-radius: 48% 52% 44% 56%; background: linear-gradient(145deg, var(--rose), var(--plaster)); box-shadow: 0 18px 38px rgba(0,0,0,.22); }
.final-cairn span:nth-child(1) { bottom: 0; width: 190px; height: 62px; }
.final-cairn span:nth-child(2) { bottom: 52px; width: 144px; height: 54px; }
.final-cairn span:nth-child(3) { bottom: 98px; width: 104px; height: 46px; }
.final-cairn span:nth-child(4) { bottom: 137px; width: 62px; height: 36px; background: var(--glint); }
.final-cairn.shake { animation: looseStone .52s cubic-bezier(.36,.07,.19,.97); }
@keyframes looseStone { 10%, 90% { transform: translateX(-2px) rotate(-1deg); } 20%, 80% { transform: translateX(4px) rotate(1.5deg); } 30%, 50%, 70% { transform: translateX(-7px) rotate(-2deg); } 40%, 60% { transform: translateX(7px) rotate(2deg); } }
.overlook-ridge { height: 28vh; background: #17100c; clip-path: polygon(0 70%, 18% 52%, 36% 65%, 55% 44%, 71% 60%, 88% 42%, 100% 56%, 100% 100%, 0 100%); }

.reveal { opacity: 0; transform: translateY(26px); transition: opacity .95s ease, transform .95s cubic-bezier(.2,.8,.2,1); }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal.late { transition-delay: .16s; }
.reveal.later { transition-delay: .28s; }

@media (max-width: 760px) {
  .trail-labels { display: none; }
  .ridge-nav { left: 16px; right: 16px; top: 16px; }
  .upper-right { text-align: left; left: 8vw; right: 8vw; }
  .ground-copy, .lodge-register, .panel-stack, .map-slab { left: 8vw; right: 8vw; width: auto; }
  .cairn-field { transform: scale(.82); transform-origin: left bottom; left: 4vw; }
  .input-row { flex-direction: column; }
  button[type="submit"] { padding: 14px 20px; }
}