/* ============================================================
   XAHNI — xahni.io
   Brand tokens: Soil #1E1A16 (anchor), Ember #D98A3D (sole signal)
   Display: Marcellus · Body: Archivo · Utility: IBM Plex Mono
   ============================================================ */

:root {
  --soil: #1E1A16;
  --soil-2: #2A241E;        /* raised surfaces on soil */
  --bone: #F1EAE0;          /* paper ground */
  --bone-2: #E8DFD2;        /* cards on paper */
  --clay: #8A7B69;          /* muted ink on soil / secondary on paper */
  --ink: #26211B;           /* text on paper */
  --ember: #D98A3D;         /* the only signal color */
  --ember-deep: #B06B24;

  --font-display: "Marcellus", serif;
  --font-body: "Archivo", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", monospace;

  --measure: 34em;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --section-y: clamp(4rem, 9vw, 7.5rem);
}

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

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  .vp line, .vp circle { animation: none !important; }
}

body {
  font-family: var(--font-body);
  background: var(--bone);
  color: var(--ink);
  line-height: 1.6;
  font-size: clamp(1rem, 0.95rem + 0.3vw, 1.125rem);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }
:focus-visible { outline: 3px solid var(--ember); outline-offset: 3px; border-radius: 2px; }

.wrap { max-width: 72rem; margin-inline: auto; padding-inline: var(--gutter); }

/* ---------- Header ---------- */
.site-header {
  position: absolute; inset: 0 0 auto 0; z-index: 10;
  display: flex; justify-content: space-between; align-items: center;
  padding: 1.5rem var(--gutter);
}
.wordmark {
  font-family: var(--font-display);
  font-size: 2.4rem; letter-spacing: 0.14em; text-transform:lowercase;
  color: var(--bone); text-decoration: none;
}
.wordmark span { color: var(--ember); }
.lang-switch {
  font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.12em;
  color: var(--bone); text-decoration: none; border: 1px solid rgba(241,234,224,0.35);
  padding: 0.4rem 0.85rem; border-radius: 999px; transition: border-color 160ms, color 160ms;
}
.lang-switch:hover { border-color: var(--ember); color: var(--ember); }

/* ---------- Hero ---------- */
.hero {
  position: relative; background: var(--soil); color: var(--bone);
  padding: clamp(9rem, 16vw, 13rem) 0 var(--section-y);
  overflow: hidden;
}
.vp {
  position: absolute; inset: 0; width: 100%; height: 100%;
  pointer-events: none; opacity: 0.9;
}
.vp line { stroke: rgba(241,234,224,0.10); stroke-width: 1; }
.vp .glow { fill: var(--ember); }
.vp .halo { fill: none; stroke: var(--ember); opacity: 0.35; }
@keyframes emberPulse { 0%,100% { opacity: 0.35; } 50% { opacity: 0.75; } }
.vp .halo { animation: emberPulse 5s ease-in-out infinite; }

.hero .wrap { position: relative; }
.eyebrow {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--ember); margin-bottom: 1.5rem;
}
.hero h1 {
  font-family: var(--font-display); font-weight: 400;
  font-size: clamp(2.1rem, 5.4vw, 4rem); line-height: 1.12;
  max-width: 15em; letter-spacing: 0.005em;
}
.hero .sub {
  margin-top: 1.75rem; max-width: var(--measure);
  color: rgba(241,234,224,0.82); font-size: clamp(1.05rem, 1rem + 0.35vw, 1.2rem);
}
.cta {
  display: inline-block; margin-top: 2.5rem;
  font-family: var(--font-mono); font-size: 0.85rem; letter-spacing: 0.1em;
  color: var(--soil); background: var(--ember); text-decoration: none;
  padding: 0.95rem 1.8rem; border-radius: 2px;
  transition: background 160ms, transform 160ms;
}
.cta:hover { background: var(--ember-deep); }
.cta:active { transform: translateY(1px); }

/* ---------- Sections ---------- */
section { padding-block: var(--section-y); }
.kicker {
  font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--ember-deep); margin-bottom: 1.25rem;
}
h2 {
  font-family: var(--font-display); font-weight: 400;
  font-size: clamp(1.7rem, 3.4vw, 2.6rem); line-height: 1.18;
  max-width: 22em; margin-bottom: 1.5rem;
}
.lede { max-width: var(--measure); }
.lede + .lede { margin-top: 1rem; }

/* Three-column benefit grid */
.grid-3 {
  display: grid; gap: 1.25rem; margin-top: 3rem;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
}
.card {
  background: var(--bone-2); border-top: 2px solid var(--ember);
  padding: 1.75rem 1.5rem; border-radius: 2px;
}
.card h3 { font-family: var(--font-display); font-weight: 400; font-size: 1.2rem; margin-bottom: 0.6rem; }
.card p { font-size: 0.97rem; color: #4A4137; }

/* Steps */
.steps { margin-top: 3rem; display: grid; gap: 0; border-top: 1px solid #D5C9B8; }
.step {
  display: grid; grid-template-columns: 5rem 1fr; gap: 1.5rem;
  padding: 2rem 0; border-bottom: 1px solid #D5C9B8; align-items: start;
}
.step .num {
  font-family: var(--font-mono); font-size: 1.6rem; color: var(--ember-deep);
  line-height: 1;
}
.step h3 { font-family: var(--font-display); font-weight: 400; font-size: 1.35rem; margin-bottom: 0.4rem; }
.step p { max-width: var(--measure); color: #4A4137; }
@media (max-width: 34rem) { .step { grid-template-columns: 3rem 1fr; gap: 1rem; } }

/* Statement band (Por qué México) */
.band { background: var(--soil); color: var(--bone); }
.band .kicker { color: var(--ember); }
.band .lede { color: rgba(241,234,224,0.85); }

/* ---------- Contact ---------- */
.contact .email {
  font-family: var(--font-display); font-size: clamp(1.3rem, 2.6vw, 1.9rem);
  color: var(--ember-deep); text-decoration: none; border-bottom: 1px solid currentColor;
}
.contact .email:hover { color: var(--ember); }
form { margin-top: 3rem; max-width: 36rem; display: grid; gap: 1.1rem; }
label { display: grid; gap: 0.4rem; font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; color: #5B5245; }
input, textarea {
  font: inherit; font-family: var(--font-body); color: var(--ink);
  background: #FBF8F2; border: 1px solid #C9BCA9; border-radius: 2px;
  padding: 0.8rem 0.9rem; width: 100%;
}
input:focus, textarea:focus { border-color: var(--ember-deep); outline: none; box-shadow: 0 0 0 3px rgba(217,138,61,0.25); }
textarea { min-height: 8rem; resize: vertical; }
button.cta { border: 0; cursor: pointer; font-family: var(--font-mono); }
.form-note { font-size: 0.85rem; color: #6B6154; max-width: 36rem; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--soil); color: rgba(241,234,224,0.7);
  padding: 2.25rem var(--gutter);
  font-family: var(--font-mono); font-size: 0.75rem; letter-spacing: 0.08em;
  display: flex; flex-wrap: wrap; gap: 1rem; justify-content: space-between; align-items: center;
}
.site-footer a { color: var(--bone); text-decoration: none; border-bottom: 1px solid rgba(241,234,224,0.3); }
.site-footer a:hover { color: var(--ember); border-color: var(--ember); }

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 600ms ease, transform 600ms ease; }
.reveal.in { opacity: 1; transform: none; }

/* ---------- /en one-screen page ---------- */
.en-page {
  min-height: 100svh; background: var(--soil); color: var(--bone);
  display: grid; place-items: center; position: relative; overflow: hidden;
  padding: 6rem var(--gutter) 4rem;
}
.en-page .inner { max-width: 42rem; position: relative; }
.en-page h1 { font-family: var(--font-display); font-weight: 400; font-size: clamp(2rem, 5vw, 3.2rem); line-height: 1.15; }
.en-page p { margin-top: 1.4rem; color: rgba(241,234,224,0.85); }
.en-page .email { color: var(--ember); text-decoration: none; border-bottom: 1px solid currentColor; }
.en-page .foot {
  margin-top: 3.5rem; font-family: var(--font-mono); font-size: 0.72rem;
  letter-spacing: 0.14em; color: rgba(241,234,224,0.6);
}
.en-page .foot a { color: var(--bone); }