/* =========================================================
   CHAYCHI — Base & Utilities
   ========================================================= */

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *, *::before, *::after{
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

body{
  margin: 0;
  background: var(--ink);
  color: var(--cream);
  font-family: var(--f-body);
  font-size: var(--step-0);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

h1,h2,h3,h4{
  font-family: var(--f-display);
  font-weight: 600;
  line-height: 1.05;
  letter-spacing: -0.01em;
  margin: 0;
  color: var(--cream);
}

.on-cream h1, .on-cream h2, .on-cream h3, .on-cream h4,
.section--cream h1, .section--cream h2, .section--cream h3, .section--cream h4{
  color: var(--ink-on-cream);
}

p{ margin: 0; }

ul{ list-style: none; margin: 0; padding: 0; }

button{ font-family: inherit; cursor: pointer; }

::selection{ background: var(--copper); color: var(--ink); }

:focus-visible{
  outline: 2px solid var(--copper);
  outline-offset: 3px;
  border-radius: 4px;
}

.container{
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section{
  position: relative;
  padding-block: clamp(4rem, 9vw, 8rem);
}

.section--cream{
  background: var(--parchment);
  color: var(--ink-on-cream);
}

.section--tight{ padding-block: clamp(2.5rem, 5vw, 4.5rem); }

.eyebrow{
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  font-family: var(--f-mono);
  font-size: var(--step--1);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--copper);
}

.section--cream .eyebrow{ color: var(--pomegranate); }

.eyebrow::before{
  content: "";
  width: 20px;
  height: 1px;
  background: currentColor;
  display: inline-block;
}

.lede{
  color: var(--sand);
  max-width: 56ch;
}
.section--cream .lede{ color: var(--ink-on-cream-soft); }

.section-head{
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.section-head__text{ max-width: 640px; }
.section-head__text h2{ margin-top: 0.5rem; }

/* --- Buttons --- */
.btn{
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--f-mono);
  font-size: var(--step--1);
  letter-spacing: 0.04em;
  padding: 0.95rem 1.6rem;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: transform var(--dur-fast) var(--ease-out), background var(--dur-fast), border-color var(--dur-fast), color var(--dur-fast);
  white-space: nowrap;
}
.btn:hover{ transform: translateY(-2px); }
.btn:active{ transform: translateY(0); }

.btn--primary{
  background: var(--copper);
  color: var(--ink);
}
.btn--primary:hover{ background: #dd9a56; }

.btn--ghost{
  background: transparent;
  color: var(--cream);
  border-color: var(--line);
}
.btn--ghost:hover{ border-color: var(--copper); color: var(--copper); }

.section--cream .btn--ghost{ color: var(--ink-on-cream); border-color: #d8c9a3; }
.section--cream .btn--ghost:hover{ border-color: var(--pomegranate); color: var(--pomegranate); }

.btn--arrow::after{ content: "→"; transition: transform var(--dur-fast) var(--ease-out); }
.btn--arrow:hover::after{ transform: translateX(3px); }

/* --- Cards / surfaces --- */
.card{
  background: var(--bark);
  border: 1px solid var(--line);
  border-radius: var(--radius-m);
  padding: clamp(1.5rem, 3vw, 2.25rem);
}

.tag{
  font-family: var(--f-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.3em 0.7em;
  border-radius: 999px;
  display: inline-block;
}
.tag--live{ background: rgba(62,128,120,0.18); color: #7fc2b7; border: 1px solid rgba(62,128,120,0.4); }
.tag--soon{ background: rgba(201,132,63,0.14); color: var(--copper); border: 1px solid rgba(201,132,63,0.35); }
.tag--idea{ background: rgba(183,161,131,0.12); color: var(--sand); border: 1px solid var(--line); }

/* --- Reveal-on-scroll --- */
[data-reveal]{
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out);
}
[data-reveal].is-visible{ opacity: 1; transform: translateY(0); }
[data-reveal-delay="1"]{ transition-delay: 90ms; }
[data-reveal-delay="2"]{ transition-delay: 180ms; }
[data-reveal-delay="3"]{ transition-delay: 270ms; }
[data-reveal-delay="4"]{ transition-delay: 360ms; }

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

.divider-line{
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--line) 20%, var(--line) 80%, transparent);
  border: 0;
  margin: 0;
}

.skip-link{
  position: fixed; top: -60px; left: 1rem; z-index: 999;
  background: var(--copper); color: var(--ink); padding: 0.7rem 1.2rem;
  border-radius: var(--radius-s); transition: top var(--dur-fast);
  font-family: var(--f-mono); font-size: 0.85rem;
}
.skip-link:focus{ top: 1rem; }