/* ─── KOU · landing ─────────────────────────────────────────── */

@font-face {
  font-family: "Shorai Sans";
  src: url("assets/fonts/shorai-subset.woff2") format("woff2");
  font-weight: 100 900;
  font-display: swap;
}

:root {
  --madera: #EDE4D3;
  --grafito: #2B2B2D;
  --hueso: #F7F3EB;
  --carbon: #1A1A1A;
  --niebla: #8A857E;
  --linea: #E2DCD0;
  --kinari: #E8DFC9;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --wrap: 1200px;
  --pad: clamp(24px, 6vw, 96px);

  font-family: "Shorai Sans", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--hueso);
  color: var(--grafito);
  font-weight: 400;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

.wrap { max-width: var(--wrap); margin-inline: auto; padding-inline: var(--pad); }

/* ─── shared type ─── */
.eyebrow {
  font-weight: 500;
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--niebla);
}
.eyebrow--light { color: rgba(247, 243, 235, 0.72); }

.section__title {
  font-weight: 300;
  font-size: clamp(1.9rem, 4vw, 3rem);
  letter-spacing: -0.01em;
  line-height: 1.05;
  margin-top: 0.6rem;
}

/* ─── buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85em 1.7em;
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-decoration: none;
  border-radius: 4px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: opacity 140ms var(--ease), background 140ms var(--ease), transform 80ms var(--ease);
}
.btn:active { transform: scale(0.98); }
.btn--solid { background: var(--grafito); color: var(--hueso); }
.btn--solid:hover { background: var(--carbon); }
.btn--solid-light { background: var(--hueso); color: var(--grafito); }
.btn--solid-light:hover { opacity: 0.88; }
.btn--line-light { border-color: rgba(247, 243, 235, 0.45); color: var(--hueso); }
.btn--line-light:hover { border-color: var(--hueso); }
.btn--ghost { color: var(--hueso); padding: 0.5em 0; }
.btn--ghost:hover { opacity: 0.7; }

/* ─── nav ─── */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  transition: background 240ms var(--ease), border-color 240ms var(--ease);
  border-bottom: 1px solid transparent;
}
.nav__inner {
  max-width: 1440px;
  margin-inline: auto;
  padding: 18px var(--pad);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav__links { display: flex; align-items: center; gap: clamp(14px, 2.4vw, 30px); }
.nav--solid {
  background: var(--hueso);
  border-bottom-color: var(--linea);
}
.nav--solid .btn--ghost { color: var(--grafito); }

/* ─── logo (blob kou) ─── */
.nav__logo { display: inline-flex; transition: opacity 140ms var(--ease); }
.nav__logo:hover { opacity: 0.8; }
.nav__logo-img { height: 40px; width: auto; display: block; }
/* swap to dark grain blob when nav turns solid (light bg) */
.nav--solid .nav__logo-img { content: url("assets/logos/kou-blob-dark.png"); }
.footer__logo { display: inline-flex; transition: opacity 140ms var(--ease); }
.footer__logo:hover { opacity: 0.8; }
.footer__logo img { height: 56px; width: auto; display: block; }

/* ─── hero ─── */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  color: var(--hueso);
  overflow: hidden;
}
.hero__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero__scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(26,26,26,0.82) 0%, rgba(26,26,26,0.35) 45%, rgba(26,26,26,0.15) 100%);
}
.hero__content {
  position: relative;
  max-width: var(--wrap);
  width: 100%;
  margin-inline: auto;
  padding: 0 var(--pad) clamp(56px, 10vh, 120px);
}
.hero__title {
  font-weight: 300;
  font-size: clamp(2.3rem, 6vw, 4.6rem);
  line-height: 1.04;
  letter-spacing: -0.015em;
  margin: 0.9rem 0 1.4rem;
}
.hero__sub {
  max-width: 46ch;
  font-size: clamp(1rem, 1.4vw, 1.18rem);
  color: rgba(247, 243, 235, 0.86);
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 2.2rem;
}

/* ─── intro ─── */
.intro { padding: clamp(72px, 12vh, 140px) 0; }
.intro__lead {
  font-weight: 300;
  font-size: clamp(1.5rem, 3vw, 2.3rem);
  line-height: 1.28;
  letter-spacing: -0.01em;
  max-width: 22ch;
  margin: 1.2rem 0 2.6rem;
}
.specs {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 10px 28px;
  padding-top: 1.6rem;
  border-top: 1px solid var(--linea);
}
.specs li {
  font-size: 0.95rem;
  color: var(--niebla);
  position: relative;
  padding-left: 18px;
}
.specs li::before {
  content: "·";
  position: absolute;
  left: 4px;
  color: var(--grafito);
}

/* ─── qué hacemos (about) ─── */
.about {
  background: var(--madera);
  padding: clamp(72px, 12vh, 140px) 0;
}
.about__lead {
  font-weight: 300;
  font-size: clamp(1.3rem, 2.4vw, 1.9rem);
  line-height: 1.32;
  letter-spacing: -0.01em;
  max-width: 30ch;
  margin: 1rem 0 clamp(2.4rem, 5vw, 3.6rem);
  color: #4a463f;
}
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--linea);
  border-block: 1px solid var(--linea);
}
.step {
  background: var(--madera);
  padding: clamp(28px, 3vw, 40px) clamp(24px, 2.6vw, 36px);
}
.step__num {
  font-weight: 500;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  color: var(--grafito);
  margin-bottom: 1rem;
  font-variant-numeric: tabular-nums;
}
.step__text {
  font-size: 1.02rem;
  line-height: 1.5;
  color: #5c574f;
  max-width: 34ch;
}

/* ─── composición de fotos (packed grid) ─── */
.gallery { padding: clamp(56px, 8vh, 100px) 0 clamp(64px, 10vh, 120px); }
.composition {
  max-width: 1320px;
  margin-inline: auto;
  padding-inline: var(--pad);
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-auto-rows: clamp(48px, 5.2vw, 72px);
  gap: clamp(8px, 0.9vw, 12px);
}
.c {
  margin: 0;
  overflow: hidden;
  border-radius: 3px;
  background: var(--kinari);
}
.c img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 700ms var(--ease);
}
.c:hover img { transform: scale(1.04); }

/* placement determinista, sin huecos — 3 bandas */
.p1  { grid-column: 1 / 4;   grid-row: 1 / 7;   }
.p2  { grid-column: 4 / 9;   grid-row: 1 / 7;   }
.p3  { grid-column: 9 / 13;  grid-row: 1 / 4;   }
.p4  { grid-column: 9 / 13;  grid-row: 4 / 7;   }
.p5  { grid-column: 1 / 5;   grid-row: 7 / 13;  }
.p6  { grid-column: 5 / 9;   grid-row: 7 / 10;  }
.p7  { grid-column: 9 / 13;  grid-row: 7 / 13;  }
.p8  { grid-column: 5 / 9;   grid-row: 10 / 13; }
.p9  { grid-column: 1 / 7;   grid-row: 13 / 18; }
.p10 { grid-column: 7 / 10;  grid-row: 13 / 16; }
.p11 { grid-column: 10 / 13; grid-row: 13 / 16; }
.p12 { grid-column: 7 / 13;  grid-row: 16 / 18; }

/* mosaico 2 (abajo) — 6 piezas, 2 bandas */
.b1 { grid-column: 1 / 6;   grid-row: 1 / 7;   }
.b2 { grid-column: 6 / 13;  grid-row: 1 / 4;   }
.b3 { grid-column: 6 / 13;  grid-row: 4 / 7;   }
.b4 { grid-column: 1 / 5;   grid-row: 7 / 13;  }
.b5 { grid-column: 5 / 9;   grid-row: 7 / 13;  }
.b6 { grid-column: 9 / 13;  grid-row: 7 / 13;  }

/* tablet: masonry 3 columnas */
@media (max-width: 900px) {
  .composition {
    display: block;
    column-count: 3;
    column-gap: 10px;
    grid-auto-rows: initial;
  }
  .c { break-inside: avoid; margin-bottom: 10px; }
  .c img { height: auto; }
}
/* móvil: masonry 2 columnas */
@media (max-width: 560px) {
  .composition { column-count: 2; column-gap: 8px; }
  .c { margin-bottom: 8px; }
}

/* ─── cómo lo hacemos (esquema kit) ─── */
.how { padding: clamp(72px, 12vh, 140px) 0; }
.how .section__title { margin-bottom: clamp(2.4rem, 5vw, 3.6rem); }
.kit { border-top: 1px solid var(--linea); }
.kit__row {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: clamp(16px, 3vw, 48px);
  align-items: center;
  padding: clamp(22px, 3vw, 34px) 0;
  border-bottom: 1px solid var(--linea);
}
.kit__step {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 500;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--niebla);
}
.kit__step span {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 26px;
  height: 26px;
  border: 1px solid var(--linea);
  border-radius: 999px;
  color: var(--grafito);
  font-size: 0.82rem;
  letter-spacing: 0;
}
.kit__items {
  display: flex;
  align-items: center;
  gap: clamp(16px, 3vw, 44px);
  flex-wrap: wrap;
}
.kit__items img {
  height: 92px;
  width: auto;
  display: block;
  transition: transform 300ms var(--ease);
}
.kit__items--legs img { height: 88px; }
.kit__items figure { margin: 0; }
.kit__items figure:hover img { transform: translateY(-3px); }
.kit__col { display: flex; flex-direction: column; gap: clamp(12px, 1.6vw, 18px); }
.kit__cap {
  font-size: 0.95rem;
  color: var(--niebla);
  letter-spacing: 0.01em;
  font-variant-numeric: tabular-nums;
}
.kit__cap b {
  font-weight: 500;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--grafito);
  margin-right: 0.5em;
}
.kit__dot { margin: 0 0.85em; color: var(--linea); }
.how__price {
  margin-top: clamp(2rem, 4vw, 2.8rem);
  font-weight: 300;
  font-size: clamp(1.3rem, 2.4vw, 1.9rem);
  color: var(--grafito);
  letter-spacing: -0.01em;
}
.how__price b { font-weight: 500; }
.how__price span {
  font-size: 0.9rem;
  color: var(--niebla);
  letter-spacing: 0.01em;
  margin-left: 0.5em;
}
.how__foot {
  margin-top: 0.7rem;
  font-size: 0.92rem;
  color: var(--niebla);
}
@media (max-width: 680px) {
  .kit__row { grid-template-columns: 1fr; gap: 14px; }
  .kit__items img { height: 56px; }
  .kit__items--legs img { height: 78px; }
}

/* ─── respaldo (Teks) ─── */
.backing { padding: clamp(72px, 12vh, 140px) 0; border-top: 1px solid var(--linea); }
.backing__inner { max-width: 720px; }
.backing__text {
  font-weight: 300;
  font-size: clamp(1.25rem, 2.2vw, 1.7rem);
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: #4a463f;
  margin: 1rem 0 clamp(1.8rem, 3.5vw, 2.6rem);
}
.backing__logo {
  font-size: 1.9rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--grafito);
}
.backing__logo-img { height: 44px; width: auto; display: block; }

/* ─── cómo comprar ─── */
.buy { padding: clamp(72px, 12vh, 140px) 0; border-top: 1px solid var(--linea); }
.buy .section__title { margin-bottom: clamp(2.4rem, 5vw, 3.4rem); }
.buy__steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(24px, 3vw, 44px);
}
.buy__step { border-top: 1px solid var(--grafito); padding-top: 1.1rem; }
.buy__n {
  font-weight: 500;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  color: var(--niebla);
  font-variant-numeric: tabular-nums;
}
.buy__step h3 {
  font-weight: 400;
  font-size: 1.12rem;
  margin: 0.7rem 0 0.4rem;
  letter-spacing: -0.01em;
}
.buy__step p { font-size: 0.98rem; color: var(--niebla); line-height: 1.5; }

/* ─── trade (interioristas) ─── */
.trade { background: var(--madera); padding: clamp(56px, 9vh, 96px) 0; }
.trade__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: clamp(24px, 4vw, 64px);
  flex-wrap: wrap;
}
.trade .section__title { margin: 0.5rem 0 0; }
.trade__text { color: #4a463f; max-width: 46ch; margin-top: 0.8rem; }
.trade__copy { flex: 1 1 380px; }

/* ─── contact ─── */
.contact {
  background: var(--grafito);
  color: var(--hueso);
  padding: clamp(88px, 16vh, 180px) 0;
}
.waitlist { max-width: 460px; margin: clamp(2.4rem, 5vw, 3.4rem) auto 0; }
.waitlist__note { font-size: 0.9rem; color: rgba(247, 243, 235, 0.6); margin-bottom: 1rem; }
.waitlist__row { display: flex; gap: 8px; }
.waitlist input {
  flex: 1;
  padding: 0.85em 1.1em;
  background: transparent;
  border: 1px solid rgba(247, 243, 235, 0.28);
  border-radius: 4px;
  color: var(--hueso);
  font: inherit;
  font-size: 0.95rem;
}
.waitlist input::placeholder { color: rgba(247, 243, 235, 0.4); }
.waitlist input:focus { outline: none; border-color: rgba(247, 243, 235, 0.7); }
.waitlist button {
  padding: 0.85em 1.4em;
  background: var(--hueso);
  color: var(--grafito);
  border: none;
  border-radius: 4px;
  font: inherit;
  font-weight: 500;
  font-size: 0.92rem;
  cursor: pointer;
  transition: opacity 140ms var(--ease);
}
.waitlist button:hover { opacity: 0.88; }

@media (max-width: 760px) {
  .buy__steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 460px) {
  .buy__steps { grid-template-columns: 1fr; }
  .waitlist__row { flex-direction: column; }
}
.contact__stock {
  display: inline-block;
  margin: 1.4rem auto 0;
  padding: 0.5em 1.1em;
  border: 1px solid rgba(247, 243, 235, 0.28);
  border-radius: 999px;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  color: rgba(247, 243, 235, 0.9);
}
.footer__ig {
  font-size: 0.9rem;
  color: var(--niebla);
  text-decoration: none;
  letter-spacing: 0.04em;
  transition: color 140ms var(--ease);
}
.footer__ig:hover { color: var(--grafito); }
.contact__inner { text-align: center; }
.contact__title {
  font-weight: 300;
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.06;
  letter-spacing: -0.015em;
  margin: 0.9rem 0 0.8rem;
}
.contact__sub { color: rgba(247, 243, 235, 0.7); }
.contact__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
  margin: 2.4rem 0 1.4rem;
}
.contact__num {
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  color: rgba(247, 243, 235, 0.62);
  font-variant-numeric: tabular-nums;
}

/* ─── footer ─── */
.footer { padding: clamp(48px, 8vh, 88px) 0; }
.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
  text-align: center;
}
.footer__tag {
  font-weight: 300;
  font-size: 1.3rem;
  letter-spacing: 0.02em;
}
.footer__meta { font-size: 0.85rem; color: var(--niebla); }

/* ─── responsive ─── */
@media (max-width: 760px) {
  .steps { grid-template-columns: 1fr; }
}

/* ─── movimiento (sutil, contemplativo) ─── */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
.hero__img { animation: heroSettle 12s var(--ease) forwards; transform-origin: 55% 45%; }
@keyframes heroSettle { from { transform: scale(1.08); } to { transform: scale(1); } }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  .hero__img { animation: none !important; }
}