/* ============================================================
   KAIAK — MASTER
   Palette rebuilt on the Frankenstein blues (--navy #022B72,
   --ink #171A22, --lite #F3F6FB, --line rgba(2,43,114,.16)),
   with the electric blue from v7-plus (#1F3BFF) as the single
   accent. No brown, tan, clay or espresso anywhere.
   Type is Switzer (variable) — the closest thing on hand to
   Frankenstein's Neue Haas Grotesk Display Pro — carrying the
   weight (700/800), the tight line-height (.94–.98) and the
   negative tracking (-.03 to -.04em) that make it read solid.
   ============================================================ */

@font-face{ font-family:'Switzer'; src:url('../lib/fonts/switzer/Switzer-Variable.woff2') format('woff2-variations'); font-weight:100 900; font-style:normal; font-display:swap; }
@font-face{ font-family:'Switzer'; src:url('../lib/fonts/switzer/Switzer-Regular.woff2') format('woff2'); font-weight:400; font-style:normal; font-display:swap; }
@font-face{ font-family:'Switzer'; src:url('../lib/fonts/switzer/Switzer-Medium.woff2') format('woff2'); font-weight:500; font-style:normal; font-display:swap; }
@font-face{ font-family:'Switzer'; src:url('../lib/fonts/switzer/Switzer-Semibold.woff2') format('woff2'); font-weight:600; font-style:normal; font-display:swap; }
@font-face{ font-family:'KaiakMono'; src:url('../lib/fonts/jetbrains-mono/JetBrainsMono-400.woff2') format('woff2'); font-weight:400; font-style:normal; font-display:swap; }
@font-face{ font-family:'KaiakMono'; src:url('../lib/fonts/jetbrains-mono/JetBrainsMono-700.woff2') format('woff2'); font-weight:700; font-style:normal; font-display:swap; }

@property --wl{ syntax:'<percentage>'; inherits:true; initial-value:8%; }
@property --wlbg{ syntax:'<percentage>'; inherits:true; initial-value:12%; }

:root{
  /* ---- Frankenstein blues ---- */
  --paper:      #FFFFFF;
  --lite:       #F3F6FB;
  --lite-2:     #E9EFF9;
  --navy:       #022B72;
  --navy-deep:  #011B4B;
  --navy-2:     #04327F;
  --ink:        #171A22;
  --ink-soft:   #3D4453;
  /* --mut darkened from #6B7280: it sits on the tinted tiles, and the
     worst-case ground (#CBD9F2) only clears WCAG AA at this value.
     #555C69 → 4.72:1 on #CBD9F2, 5.31 on #DFE3FF, 5.66 on #E4ECFA,
     6.21 on #F3F6FB, 6.73 on white. */
  --mut:        #555C69;
  /* --blueb stays as the DECORATIVE / on-navy blue (rules, ghost type,
     dots, labels on dark). --blue-ink is its text-on-light counterpart:
     4.87:1 on #E9EFF9, 5.19 on #F3F6FB, 5.62 on white. */
  --blueb:      #8AA6D8;
  --blue-ink:   #45689F;
  --accent:     #1F3BFF;
  --accent-lit: #4A62FF;
  --accent-soft:#DFE3FF;
  --line:       rgba(2,43,114,.16);
  --line-2:     rgba(2,43,114,.30);
  --line-dark:  rgba(233,239,249,.20);
  --on-navy:    #EAF0FB;
  --on-navy-mut:rgba(234,240,251,.66);
  --shadow:     0 1px 2px rgba(2,43,114,.06), 0 18px 44px -22px rgba(2,43,114,.34);
  --shadow-lg:  0 30px 80px -40px rgba(2,43,114,.55);

  --font-display:'Switzer','Helvetica Neue',Helvetica,Arial,sans-serif;
  --font-body:'Switzer',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  --font-mono:'KaiakMono',ui-monospace,'SF Mono',Menlo,monospace;

  --container:1280px;
  --edge:clamp(20px,5vw,64px);
  --rail:246px;
  --ease:cubic-bezier(.22,.61,.21,1);
  --ease-out:cubic-bezier(.16,1,.3,1);
}

*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; background:var(--paper); scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:16.5px;
  font-weight:400;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img,svg{ display:block; max-width:100%; }
a{ color:inherit; }
button{ font:inherit; color:inherit; background:none; border:0; }
ul,ol{ margin:0; padding:0; list-style:none; }
h1,h2,h3,h4,p,figure{ margin:0; }
:focus-visible{ outline:2.5px solid var(--accent); outline-offset:3px; }

.wrap{
  max-width:var(--container);
  margin:0 auto;
  padding-left:var(--edge);
  padding-right:var(--edge);
}

/* ============ TYPE PRIMITIVES ============ */
h1,h2,h3,h4,.display{
  font-family:var(--font-display);
  font-weight:700;
  letter-spacing:-.035em;
  line-height:.96;
  color:var(--navy);
}
.eyebrow{
  font-family:var(--font-mono);
  font-size:11.5px;
  font-weight:700;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:var(--blue-ink);
  display:inline-flex;
  align-items:center;
  gap:10px;
}
.eyebrow::before{ content:""; width:24px; height:2px; background:var(--accent); flex:none; }
.accent{ color:var(--accent); }

.btn{
  --btn-bg:var(--navy);
  --btn-fg:#fff;
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.09em;
  text-transform:uppercase;
  padding:17px 28px;
  border-radius:4px;
  border:1.5px solid transparent;
  background:var(--btn-bg);
  color:var(--btn-fg);
  cursor:pointer;
  text-decoration:none;
  transition:transform .3s var(--ease), box-shadow .3s ease, background .25s ease, border-color .25s ease;
}
.btn-cta-icon{ font-size:1.15em; line-height:1; transform:translateY(-.5px); }
.btn-primary{ --btn-bg:var(--accent); }
.btn-primary:hover{ background:var(--accent-lit); transform:translateY(-2px); box-shadow:var(--shadow); }
.btn-ghost{ --btn-bg:transparent; --btn-fg:var(--navy); border-color:var(--line-2); }
.btn-ghost:hover{ border-color:var(--navy); background:rgba(2,43,114,.05); }
.btn-ghost.on-dark{ --btn-fg:var(--on-navy); border-color:var(--line-dark); }
.btn-ghost.on-dark:hover{ border-color:var(--on-navy); background:rgba(234,240,251,.08); }

/* ============ LOADER ============ */
.loader{
  position:fixed; inset:0; z-index:9999;
  background:var(--navy-deep);
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  gap:26px;
  transition:opacity .35s var(--ease), visibility .35s;
}
.loader.is-done{ opacity:0; visibility:hidden; pointer-events:none; }
.loader-mark{
  font-family:var(--font-display);
  font-weight:800;
  font-size:clamp(2.4rem,7vw,4.6rem);
  letter-spacing:-.05em;
  line-height:1;
  color:var(--on-navy);
  position:relative;
  overflow:hidden;
}
/* the mark fills from the bottom like water rising — the same idea the
   hero then hands off to */
.loader-mark .fill{
  position:absolute; inset:0;
  color:var(--accent-lit);
  clip-path:inset(calc(100% - var(--lp,0%)) 0 0 0);
  transition:clip-path .25s linear;
}
.loader-bar{
  width:min(320px,58vw); height:2px;
  background:rgba(234,240,251,.18);
  position:relative; overflow:hidden;
}
/* scaleX rather than width: same fill, no layout on every tick */
.loader-bar i{
  position:absolute; inset:0;
  width:100%;
  transform-origin:left center;
  transform:scaleX(var(--lpn,0));
  background:var(--accent-lit);
  transition:transform .25s linear;
}
.loader-meta{
  font-family:var(--font-mono);
  font-size:11.5px; letter-spacing:.22em; text-transform:uppercase;
  color:rgba(234,240,251,.55);
  display:flex; gap:14px; align-items:center;
}
.loader-meta .pct{ font-variant-numeric:tabular-nums; color:var(--blueb); }
body.is-loading{ overflow:hidden; }

/* ============ NAV ============ */
/* Never let decorative overflow widen the mobile layout viewport: clip
   (not hidden — clip creates no scroll container, so sticky/fixed keep
   working) any horizontal projection at the document edge. */
html{ overflow-x:clip; }

/* keyboard users: first tab stop jumps past nav + pinned sections */
.skip-link{
  position:fixed; top:8px; left:8px; z-index:400;
  transform:translateY(-200%);
  background:var(--navy); color:#fff;
  padding:12px 18px;
  font-family:var(--font-mono); font-size:12px;
  letter-spacing:.06em; text-transform:uppercase;
  text-decoration:none;
}
.skip-link:focus{ transform:none; }

.site-nav{
  position:fixed; top:0; left:0; right:0; z-index:200;
  transition:background .35s ease, border-color .35s ease, box-shadow .35s ease;
  border-bottom:1px solid transparent;
}
.site-nav .wrap{ display:flex; align-items:center; justify-content:space-between; height:74px; }
.site-nav.is-solid{
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(12px) saturate(150%);
  -webkit-backdrop-filter:blur(12px) saturate(150%);
  border-bottom-color:var(--line);
}
/* over the dark bands the nav inverts rather than sitting on them as a slab */
.site-nav.on-dark.is-solid{
  background:rgba(1,27,75,.82);
  border-bottom-color:rgba(234,240,251,.16);
}
.site-nav.on-dark .logo{ color:var(--on-navy); }
.site-nav.on-dark .nav-links a{ color:rgba(234,240,251,.76); }
.site-nav.on-dark .nav-links a:hover{ color:#fff; }
.logo{
  font-family:var(--font-display);
  font-weight:800;
  font-size:1.22rem;
  letter-spacing:-.03em;
  text-decoration:none;
  color:var(--navy);
  display:flex; align-items:center; gap:9px;
  transition:color .35s ease;
}
.logo .dot{ width:9px; height:9px; border-radius:50%; background:var(--accent); flex:none; }
.nav-links{ display:flex; align-items:center; gap:clamp(16px,2.2vw,30px); }
.nav-links a{
  font-family:var(--font-mono);
  font-size:12px; letter-spacing:.07em; text-transform:uppercase;
  text-decoration:none; color:var(--ink-soft);
  transition:color .2s ease;
  white-space:nowrap;
}
.nav-links a:hover{ color:var(--accent); }

.site-nav .nav-cta{ display:flex; align-items:center; }

/* burger — hidden on desktop, toggles the link panel below 960px */
.nav-burger{
  display:none;
  appearance:none; -webkit-appearance:none;
  background:none; border:0; padding:10px; margin-left:12px;
  cursor:pointer;
  flex-direction:column; justify-content:center; gap:5px;
}
.nav-burger .bar{
  display:block; width:20px; height:2px;
  background:var(--navy);
  transition:transform .25s ease, opacity .25s ease, background .35s ease;
}
.site-nav.on-dark .nav-burger .bar{ background:var(--on-navy); }
.site-nav.menu-open .nav-burger .bar:first-child{ transform:translateY(3.5px) rotate(45deg); }
.site-nav.menu-open .nav-burger .bar:last-child{ transform:translateY(-3.5px) rotate(-45deg); }

@media (max-width:960px){
  .nav-links{ display:none; }
  .nav-burger{ display:flex; }
  .site-nav.menu-open .nav-links{
    display:flex; flex-direction:column; align-items:stretch; gap:0;
    position:absolute; top:74px; left:0; right:0;
    background:#fff;
    border-bottom:1px solid var(--line);
    box-shadow:0 18px 40px rgba(2,20,55,.10);
    padding:6px 0 10px;
  }
  .site-nav.menu-open .nav-links a{
    padding:14px clamp(20px,5vw,32px);
    font-size:13px;
    color:var(--ink);
    border-top:1px solid var(--line);
  }
  .site-nav.menu-open .nav-links a:first-child{ border-top:0; }
  /* the open panel is always light, even when the bar sits over a navy band */
  .site-nav.on-dark.menu-open .nav-links a{ color:var(--ink); }
  .site-nav.menu-open{
    background:rgba(255,255,255,.97);
    border-bottom-color:var(--line);
  }
  .site-nav.on-dark.menu-open .logo{ color:var(--navy); }
  .site-nav.on-dark.menu-open .nav-burger .bar{ background:var(--navy); }
}
@media (max-width:520px){ .site-nav .nav-cta .btn{ padding:12px 16px; font-size:11px; } }

/* ============ WATER HERO ============ */
.hero{
  position:relative;
  width:100%;
  height:100vh; height:100dvh;
  min-height:600px;
  overflow:hidden;
  /* the .hero-bg layer covers this element edge to edge, so this colour is
     never seen; it is light so that the light-ground hero copy is measured
     against the ground it actually sits on */
  background:var(--lite);
  isolation:isolate;
}
.hero-bg{ position:absolute; inset:0; z-index:0; }
.hero-sky{
  position:absolute; inset:0;
  background:linear-gradient(180deg,#FFFFFF 0%,var(--lite) 46%,var(--lite-2) 100%);
}
.hero-water{
  position:absolute; left:0; right:0; bottom:0;
  top:var(--wlbg,12%);
  background:
    radial-gradient(120% 90% at 28% 0%, rgba(31,59,255,.30), transparent 58%),
    linear-gradient(180deg, var(--navy-2) 0%, var(--navy) 34%, var(--navy-deep) 74%, #00102E 100%);
  transition:top 1s var(--ease);
  box-shadow:inset 0 20px 64px -22px rgba(0,0,0,.55);
}
.hero-water::before{
  content:"";
  position:absolute; inset:0;
  background-image:
    radial-gradient(circle at 18% 22%, rgba(234,240,251,.07) 0, transparent 3%),
    radial-gradient(circle at 62% 48%, rgba(234,240,251,.055) 0, transparent 2.4%),
    radial-gradient(circle at 84% 18%, rgba(234,240,251,.07) 0, transparent 2.8%),
    radial-gradient(circle at 40% 74%, rgba(234,240,251,.05) 0, transparent 3%),
    radial-gradient(circle at 12% 82%, rgba(234,240,251,.055) 0, transparent 2.4%);
  mix-blend-mode:screen;
  opacity:.75;
  animation:caustics 16s linear infinite;
}
@keyframes caustics{
  0%{ transform:translate(0,0) scale(1); }
  50%{ transform:translate(-2.4%,1.5%) scale(1.03); }
  100%{ transform:translate(0,0) scale(1); }
}
.wave-svg{ position:absolute; left:-10%; width:120%; height:auto; z-index:1; }
.wave-back{ top:calc(var(--wlbg,12%) - 3.2vh); opacity:.5; transition:top 1s var(--ease); animation:wdb 13s linear infinite; }
.wave-front{ top:calc(var(--wlbg,12%) - 1.1vh); opacity:.92; transition:top 1s var(--ease); animation:wdf 9s linear infinite; }
@keyframes wdb{ 0%{ transform:translateX(0); } 100%{ transform:translateX(-140px); } }
@keyframes wdf{ 0%{ transform:translateX(0); } 100%{ transform:translateX(120px); } }

.hero-hud{
  position:absolute; top:0; left:0; right:0; z-index:6;
  display:flex; justify-content:space-between; align-items:center;
  padding:92px var(--edge) 0;
  pointer-events:none;
  font-family:var(--font-mono);
}
.hud-status,.hud-depth{
  font-size:11.5px; letter-spacing:.16em; text-transform:uppercase; font-weight:700;
  color:var(--navy);
  background:rgba(255,255,255,.72);
  backdrop-filter:blur(5px); -webkit-backdrop-filter:blur(5px);
  border:1px solid var(--line);
  border-radius:3px;
  padding:7px 12px;
}
.hud-status{ display:flex; align-items:center; gap:9px; }
.hud-status::before{ content:""; width:6px; height:6px; border-radius:50%; background:var(--accent); box-shadow:0 0 0 4px rgba(31,59,255,.16); animation:hudpulse 2s ease-in-out infinite; flex:none; }
@keyframes hudpulse{ 0%,100%{ opacity:.45; } 50%{ opacity:1; } }
.hud-depth{ font-variant-numeric:tabular-nums; }

/* the kayak figure rides the waterline */
/* the kayak starts capsized and deep, and rights itself onto the waterline
   as the water drops — the arc from ref-build-clay-v4, driven by the same
   two scene vars instead of its own rAF loop */
.hero-kayak{
  position:absolute; z-index:5;
  left:50%;
  width:clamp(160px,19vw,270px);
  top:calc(var(--wlbg,12%) - 1.1vh);
  transform:translate(calc(-50% + var(--kx,26vw)), calc(-58% + var(--kdy,190px)))
            rotate(var(--krot,-42deg));
  transition:top 1s var(--ease);
  animation:bob 5.4s ease-in-out infinite;
  pointer-events:none;
  /* while it is under, it reads as under: dimmed and slightly desaturated */
  opacity:var(--kop,.5);
  filter:saturate(var(--ksat,.55));
}
@keyframes bob{ 0%,100%{ margin-top:0; } 50%{ margin-top:-10px; } }
.hero-kayak svg{ width:100%; height:auto; overflow:visible; }

.hero-copy{
  position:relative; z-index:6;
  height:100%;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  text-align:center;
  padding:0 var(--edge);
}
.hero-kicker{
  opacity:0; transform:translateY(10px);
  transition:opacity .7s var(--ease), transform .7s var(--ease);
  margin-bottom:24px;
}
[data-scene="1"] .hero-kicker,[data-scene="2"] .hero-kicker,[data-scene="3"] .hero-kicker{ opacity:1; transform:none; }

.hero-headline-wrap{ position:relative; width:min(1080px,92vw); }
.hero-headline,.hero-ghost{
  font-family:var(--font-display);
  font-weight:800;
  letter-spacing:-.042em;
  line-height:.94;
  font-size:clamp(2.5rem,1rem + 6.2vw,6.1rem);
}
.hero-headline{
  color:var(--navy);
  clip-path:inset(0 0 calc(100% - var(--wl,8%)) 0);
  transition:clip-path 1s var(--ease);
}
.hero-headline .line{ display:block; }
.hero-headline .accent{ color:var(--accent); }
.hero-ghost{
  position:absolute; inset:0;
  color:var(--blueb);
  filter:blur(7px) saturate(70%);
  transform:scaleY(1.07) skewX(-1.4deg);
  opacity:.5;
  clip-path:inset(var(--wl,8%) 0 0 0);
  transition:clip-path 1s var(--ease), opacity .6s ease;
  pointer-events:none;
}
.hero-ghost .line{ display:block; }

.hero-sub{
  margin-top:clamp(22px,3vw,32px);
  max-width:min(50ch,86vw);
  font-size:clamp(1.02rem,.95rem + .35vw,1.2rem);
  line-height:1.55;
  color:var(--ink-soft);
  opacity:0; transform:translateY(10px);
  transition:opacity .7s var(--ease) .05s, transform .7s var(--ease) .05s;
}
.hero-cta{
  margin-top:clamp(26px,4vw,38px);
  display:flex; gap:16px; flex-wrap:wrap; justify-content:center;
  opacity:0; transform:translateY(10px);
  transition:opacity .7s var(--ease) .12s, transform .7s var(--ease) .12s;
}
[data-scene="3"] .hero-sub,[data-scene="3"] .hero-cta{ opacity:1; transform:none; }
.hero-cta .btn-ghost{ background:rgba(255,255,255,.8); backdrop-filter:blur(6px); -webkit-backdrop-filter:blur(6px); }

.hero-dots{
  position:absolute; right:clamp(16px,3vw,40px); top:50%; transform:translateY(-50%);
  z-index:6; display:flex; flex-direction:column; gap:14px;
}
.hero-dots i{
  width:7px; height:7px; border-radius:50%;
  background:var(--line-2);
  display:block; cursor:pointer;
  transition:background .4s ease, transform .4s ease, box-shadow .4s ease;
}
.hero-dots i.cur{ background:var(--accent); transform:scale(1.4); box-shadow:0 0 0 4px rgba(31,59,255,.18); }
.hero-hint{
  position:absolute; left:50%; bottom:26px; transform:translateX(-50%);
  z-index:6;
  font-family:var(--font-mono); font-size:11.5px; letter-spacing:.22em; text-transform:uppercase;
  color:var(--on-navy-mut);
  display:flex; flex-direction:column; align-items:center; gap:8px;
  transition:opacity .5s ease;
}
.hero-hint .stick{ width:1px; height:26px; background:linear-gradient(180deg,rgba(234,240,251,.55),transparent); animation:hintdrift 1.8s ease-in-out infinite; }
@keyframes hintdrift{ 0%,100%{ transform:translateY(0); opacity:.4; } 50%{ transform:translateY(6px); opacity:1; } }
body.hero-released .hero-hint,body.hero-released .hero-dots,body.hero-released .hero-hud{ opacity:0; pointer-events:none; }

@media (max-width:760px){
  .hero{ height:100svh; min-height:540px; }
  .hero-dots{ display:none; }
  .hud-depth{ display:none; }
  .hero-hud{ padding-top:84px; }
  .hero-kayak{ width:132px; transform:translate(calc(-50% + 30vw),-84%); }
}