/* ============================================================
   shaded. v2
   palette: chocolate/espresso grounds, warm cream, golden light
   (gradient + hairline only), burnt caramel as the single accent
   display: Spectral Light. body/UI: Inter.
   ============================================================ */

/* vars + reset */
:root {
  --espresso: #241812;
  --chocolate: #38271C;
  --cream: #F4EBDD;
  --cream-soft: #FAF5EC;
  --gold: #E3A94F;
  --caramel: #B0602F;
  --caramel-deep: #96491C;
  --ink: #2A2622;
  --ink-soft: rgba(42, 38, 34, 0.72);
  --cream-soft-a: rgba(244, 235, 221, 0.78);
  --hairline-dark: rgba(42, 38, 34, 0.22);
  --hairline-light: rgba(244, 235, 221, 0.22);
  --ease-slow: cubic-bezier(0.22, 0.08, 0.14, 1);
  --pad-x: clamp(1.4rem, 5.5vw, 4.5rem);
  --measure: 33em;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-padding-top: 5rem; }

body {
  font-family: "Inter", system-ui, sans-serif;
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.75;
  color: var(--ink);
  background: var(--espresso);
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; }

/* type */
h1, h2, .serif {
  font-family: "Spectral", "Times New Roman", serif;
  font-weight: 300;
  line-height: 1.12;
  letter-spacing: -0.005em;
}

h1 em, h2 em {
  font-style: italic;
  font-weight: 300;
  color: var(--caramel);
}

h2 { font-size: clamp(1.95rem, 5.6vw, 3.5rem); }

.eyebrow {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  opacity: 0.75;
}

.body-copy {
  max-width: var(--measure);
  font-size: clamp(1rem, 0.95rem + 0.35vw, 1.13rem);
}

.micro {
  font-size: 0.68rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  opacity: 0.75;
}

/* Unverified figures. They render clean in production; add ?debug to the
   URL to bracket them for internal review. The class itself is the launch
   gate: grep for class="ph" before spending on ads. */
.ph { white-space: nowrap; }
.debug .ph::before { content: "["; opacity: 0.4; }
.debug .ph::after { content: "]"; opacity: 0.4; }

/* skip link */
.skip {
  position: absolute;
  top: -4rem;
  left: 1rem;
  z-index: 60;
  padding: 0.6rem 1rem;
  background: var(--cream);
  color: var(--ink);
  font-size: 0.8rem;
  text-decoration: none;
}
.skip:focus { top: 1rem; }

/* buttons: no solid button exists above the reveal */
.btn {
  display: inline-block;
  padding: 0.95rem 2.4rem;
  font-family: "Inter", system-ui, sans-serif;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  text-decoration: none;
  text-align: center;
  border-radius: 2px;
  cursor: pointer;
  transition: background-color 0.45s var(--ease-slow), color 0.45s var(--ease-slow), border-color 0.45s var(--ease-slow);
}

.btn--ghost {
  border: 1px solid var(--cream-soft-a);
  background: transparent;
  color: var(--cream);
}
.btn--ghost:hover { background: var(--cream); color: var(--espresso); border-color: var(--cream); }

/* buttons are hairline-outlined, never filled blocks. a thin rule and
   letterspaced caps read more expensive than a slab of colour */
.btn--solid {
  border: 1px solid rgba(42, 38, 34, 0.45);
  background: transparent;
  color: var(--ink);
}
.btn--solid:hover { background: var(--espresso); border-color: var(--espresso); color: var(--cream-soft); }
.btn--solid[disabled] { opacity: 0.55; cursor: default; }

.on-dark .btn--solid,
.footer .btn--solid {
  border-color: rgba(244, 235, 221, 0.5);
  background: transparent;
  color: var(--cream);
}
.on-dark .btn--solid:hover,
.footer .btn--solid:hover { background: var(--cream); border-color: var(--cream); color: var(--espresso); }

:is(.btn, a, button, input, label):focus-visible {
  outline: 2px solid var(--caramel);
  outline-offset: 3px;
}

/* nav */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.05rem var(--pad-x);
  color: var(--cream);
  border-bottom: 1px solid transparent;
  transition: background-color 0.5s var(--ease-slow), border-color 0.5s var(--ease-slow);
}

.nav--scrolled {
  background: rgba(36, 24, 18, 0.86);
  border-bottom-color: var(--hairline-light);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.wordmark {
  font-family: "Spectral", serif;
  font-weight: 300;
  font-size: 1.3rem;
  line-height: 1;
  text-decoration: none;
}
.wordmark b { font-weight: 300; color: var(--caramel); }

.nav__cta {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  text-decoration: none;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid rgba(244, 235, 221, 0.45);
  transition: border-color 0.35s;
}
.nav__cta:hover { border-bottom-color: var(--cream); }

/* hero */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
  color: var(--cream);
}

.hero__media { position: absolute; inset: 0; }
.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 34%;
}

.hero__scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to bottom, rgba(36, 24, 18, 0.34), rgba(36, 24, 18, 0) 24%),
    linear-gradient(to top, rgba(36, 24, 18, 0.9), rgba(36, 24, 18, 0.5) 38%, rgba(36, 24, 18, 0.08) 66%);
}

.hero__content {
  position: relative;
  padding: 0 var(--pad-x) clamp(5.5rem, 14vh, 9rem);
  max-width: 40rem;
}

.hero h1 {
  font-size: clamp(1.95rem, 6.8vw, 3.9rem);
  margin-bottom: 2.2rem;
}
/* the hero emphasis is cream italic: the italic alone carries it */
.hero h1 em { color: inherit; }

/* sections: shared editorial pacing */
.sec {
  position: relative;
  padding: clamp(6rem, 16vh, 11rem) var(--pad-x);
  overflow: hidden;
}

.sec--cream { background: var(--cream); color: var(--ink); }
.sec--white { background: var(--cream-soft); color: var(--ink); }
.sec--chocolate { background: var(--chocolate); color: var(--cream); }
.sec--espresso { background: var(--espresso); color: var(--cream); }

.sec__inner { max-width: 72rem; margin: 0 auto; position: relative; }

/* 2. science + ladder.
   image leads and runs full-bleed on phones; one type voice throughout
   (Spectral for everything except the single small footnote) */
/* photograph runs the full width as a band, text sits centred beneath it */
.sec--science { padding: 0 0 clamp(6rem, 16vh, 11rem); text-align: center; }
.sec--science .science__fig { margin-bottom: clamp(3rem, 8vw, 5rem); }
.sec--science .science__fig img {
  width: 100%;
  height: clamp(20rem, 56vh, 34rem);
  object-fit: cover;
  object-position: center 38%;
}
.sec--science .science__text {
  max-width: 62rem;
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

.sec--science h2 {
  margin: 0 auto clamp(2.4rem, 6vw, 3.6rem);
  max-width: 15em;
}

/* three columns side by side, so it reads as a comparison rather than a
   list. no rules anywhere: space alone separates them */
.ladder {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(2rem, 5vw, 2.8rem);
  margin: 0 0 clamp(3rem, 7vw, 4.5rem);
  text-align: center;
}
.ladder dt,
.ladder dd { font-family: "Spectral", serif; }
.ladder dt {
  font-weight: 400;
  font-size: clamp(1.3rem, 1.1rem + 0.8vw, 1.75rem);
  line-height: 1.25;
}
/* regular weight, not light, and a much smaller drop in contrast: at 300
   and 72% ink this was the least readable copy on the page */
.ladder dd {
  font-weight: 400;
  font-size: clamp(1.02rem, 0.96rem + 0.3vw, 1.15rem);
  line-height: 1.6;
  color: rgba(42, 38, 34, 0.88);
  margin-top: 0.6rem;
  max-width: 22em;
  margin-inline: auto;
}
/* the bold words carry the whole argument on their own: burning, spots,
   slackening / if, if, if / nothing, nothing, nothing */
.ladder dd strong {
  font-weight: 600;
  color: var(--ink);
}
.ladder__row--ours dt { color: var(--caramel-deep); }
.ladder__row--ours dd strong { color: var(--caramel-deep); }

.science__close {
  font-family: "Spectral", serif;
  font-weight: 400;
  font-size: clamp(1.2rem, 1rem + 0.9vw, 1.75rem);
  line-height: 1.45;
  max-width: 22em;
  margin-inline: auto;
}

/* 3. triad. a quiet typographic breath on dark, centred, nothing else */
.sec--triad { text-align: center; }
.sec--triad .sec__inner { max-width: 30em; }
.sec--triad h2 { margin: 0 auto; }

/* 4. a silent full-bleed breath. no text, no scrim */
.breath { display: block; line-height: 0; background: var(--espresso); }
.breath img {
  width: 100%;
  height: 62vh;
  object-fit: cover;
  object-position: center 62%;
  will-change: transform;
}

/* 4. the one thing */
/* no product visual yet, so this is a compact type statement rather than a
   full screen. tighter padding stops it reading as a missing image */
.sec--reveal {
  text-align: center;
  padding-top: clamp(4.5rem, 11vh, 7rem);
  padding-bottom: clamp(4.5rem, 11vh, 7rem);
}
.sec--reveal .sec__inner { max-width: 54rem; }
.sec--reveal h2 { margin-bottom: clamp(1.6rem, 4vw, 2.4rem); }

/* the product, in its three colourways. one row at every size; on phones
   it breaks out past the section padding so the images stay as large as
   the screen allows */
.colourways {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(0.3rem, 1.4vw, 0.9rem);
  margin: 0 calc(var(--pad-x) * -1) clamp(2rem, 5vw, 3rem);
}
.colourways__item { margin: 0; }
.colourways__item img { width: 100%; height: auto; }

@media (min-width: 760px) {
  .colourways { margin-inline: auto; }
}

.sec--reveal .body-copy { margin: 0 auto 1.5rem; color: var(--ink-soft); }

.scarcity {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-soft);
  margin-bottom: 2.4rem;
}


/* 5. summer */
.sec--summer { padding-right: 0; }
.sec--summer .sec__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 3rem;
  align-items: center;
  max-width: none;
}
.sec--summer .summer__text { padding-right: var(--pad-x); }
.sec--summer h2 {
  font-size: clamp(1.6rem, 4.4vw, 2.7rem);
  max-width: 14em;
}

.summer__fig img {
  width: 100%;
  /* height:auto is required, otherwise the html height attribute wins as a
     presentational hint and aspect-ratio never applies */
  height: auto;
  /* squarer on phones so it does not eat the whole screen; taller again
     once it sits beside the copy */
  aspect-ratio: 1 / 1;
  object-fit: cover;
  object-position: center 42%;
  will-change: transform;
}
@media (min-width: 760px) {
  .summer__fig img { aspect-ratio: 4 / 5; }
}

/* 7. pre-order. no card: open water, one line of type, one field.
   an invitation rather than a form */
.preorder {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  color: var(--cream);
  padding: clamp(5rem, 14vh, 9rem) var(--pad-x);
}
.preorder__media { position: absolute; inset: 0; }
.preorder__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.preorder__scrim {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to bottom, rgba(20, 32, 40, 0.62), rgba(20, 30, 38, 0.72));
}
.preorder__inner {
  position: relative;
  width: 100%;
  max-width: 34rem;
  margin: 0 auto;
  text-align: center;
}
.preorder h2 {
  font-size: clamp(1.8rem, 5.4vw, 3rem);
  margin-bottom: clamp(2rem, 5vw, 2.8rem);
}
.preorder h2 em { color: var(--cream); }

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

/* a single underlined baseline, submit sits inline on the same rule */
.line-field {
  display: flex;
  align-items: center;
  gap: 1rem;
  border-bottom: 1px solid rgba(244, 235, 221, 0.5);
  transition: border-color 0.4s var(--ease-slow);
}
.line-field:focus-within { border-bottom-color: var(--cream); }
.line-field input[type="email"] {
  flex: 1 1 auto;
  min-width: 0;
  padding: 0.85rem 0;
  font-family: "Spectral", serif;
  font-weight: 300;
  font-size: clamp(1.05rem, 1rem + 0.4vw, 1.25rem);
  color: var(--cream);
  background: transparent;
  border: 0;
  border-radius: 0;
}
.line-field input[type="email"]::placeholder { color: rgba(244, 235, 221, 0.5); }
.line-field input[type="email"]:focus { outline: none; }
.line-field button {
  flex: 0 0 auto;
  padding: 0.5rem 0;
  font-family: "Inter", system-ui, sans-serif;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cream);
  background: transparent;
  border: 0;
  cursor: pointer;
  transition: opacity 0.35s;
}
.line-field button:hover { opacity: 0.65; }
.line-field button[disabled] { opacity: 0.45; cursor: default; }

.hp { position: absolute; left: -9999px; }

.field__error {
  margin-top: 0.7rem;
  font-size: 0.82rem;
  color: var(--gold);
  text-align: left;
}
.form__error { text-align: center; }
.form__error:empty, .field__error:empty { display: none; }
.line-field input[aria-invalid="true"] { color: var(--gold); }

.privacy {
  margin-top: 1.2rem;
  font-size: 0.78rem;
  color: rgba(244, 235, 221, 0.62);
  text-align: center;
}

.confirm h2 { margin-bottom: 1.1rem; }
.confirm .body-copy { color: rgba(244, 235, 221, 0.78); margin: 0 auto; }

/* footer */
/* no seam: the water carries on past the pre-order screen and darkens, so
   there is no join to notice. the scrim starts at the alpha the pre-order
   scrim ends on (.72) and deepens. the image is uniform sparkle with no
   horizon, so the continuation reads as unbroken. */
.footer {
  background:
    linear-gradient(to bottom, rgba(20, 30, 38, 0.74), rgba(13, 20, 26, 0.95)),
    url("assets/ocean-glitter.jpg") center 78% / cover;
  color: var(--cream);
  padding: clamp(3.5rem, 8vh, 5.5rem) var(--pad-x) clamp(2.5rem, 6vh, 4rem);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2.2rem;
  text-align: center;
}
.footer__line {
  max-width: 30em;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--cream-soft-a);
}
.footer__meta {
  display: flex;
  align-items: center;
  gap: 1.6rem;
  font-size: 0.74rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  /* full cream, not dimmed: the muted grey read as a disabled state */
  color: var(--cream);
}
.footer__meta a { text-decoration: none; }
.footer__meta a:hover { color: var(--cream); }
.footer__meta svg { display: block; width: 16px; height: 16px; fill: currentColor; }


/* film grain */
:root {
  --grain: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.55'/%3E%3C/svg%3E");
}
.grain {
  position: fixed;
  inset: 0;
  z-index: 55;
  background-image: var(--grain);
  opacity: 0.04;
  pointer-events: none;
}

/* scroll reveals (js adds .is-in) */
.js .reveal { opacity: 0; }
.js .reveal.is-in { opacity: 1; }

/* motion: everything slower than expected */
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }

  .js .reveal { transform: translateY(14px); }
  .js .reveal.is-in {
    transform: translateY(0);
    transition: opacity 1s var(--ease-slow), transform 1s var(--ease-slow);
  }
  .js .reveal--slow.is-in { transition-duration: 1.25s; }

  .hero__media img { animation: kenburns 9s var(--ease-slow) forwards; }
  @keyframes kenburns {
    from { transform: scale(1); }
    to { transform: scale(1.035); }
  }
}

@media (prefers-reduced-motion: reduce) {
  .js .reveal { opacity: 1; transform: none; }
}

/* ============ tablet+ ============ */
@media (min-width: 760px) {
  .sec--summer .sec__inner {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 0;
  }
  .sec--summer .summer__text { padding-left: var(--pad-x); position: relative; z-index: 2; }

  .footer {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
    gap: 3rem;
  }
}

/* ============ desktop ============ */
@media (min-width: 1080px) {
  .hero__content { padding-bottom: clamp(6.5rem, 16vh, 11rem); }
  .sec--summer .sec__inner { grid-template-columns: 1fr minmax(0, 44%); }

  .ladder { grid-template-columns: repeat(3, 1fr); gap: clamp(2rem, 4vw, 3.5rem); }
  .ladder dd { max-width: 18em; }

}