/* ============================================================
   Mexicanos Chingones — Landing
   Recreación del handoff oficial (design_handoff_landing).
   Movimiento ciudadano · apartidista · Mundial 2026.
   ============================================================ */
:root {
  /* Colores */
  --asfalto: #0b0b0b;
  --surface: #111111;
  --surface-2: #141414;
  --hairline: #1c1c1c;
  --hairline-2: #2a2a2a;
  --cal: #f5f5f0;
  --text-2: #cfcfcf;
  --text-3: #bdbdbd;
  --text-4: #8a8a8a;
  --accent: #00e28a;
  --accent-ink: #0b0b0b;

  /* Tipografía */
  --font-display: "Anton", Impact, "Arial Narrow", sans-serif;
  --font-body: "Archivo", system-ui, -apple-system, sans-serif;

  /* Escala fluida */
  --t-hero: clamp(3.75rem, 1rem + 15vw, 9.375rem);   /* 150px */
  --t-h2-lg: clamp(2.75rem, 1rem + 7vw, 5.5rem);      /* 88px */
  --t-h2: clamp(2.5rem, 1rem + 6vw, 5rem);            /* 80px */
  --t-h2-sm: clamp(2.25rem, 1rem + 5vw, 4.5rem);      /* 72px */
  --t-frase-lg: clamp(2.5rem, 1rem + 6.5vw, 5.75rem); /* 92px */
  --t-frase-sm: clamp(1.6rem, 1rem + 3vw, 3.25rem);   /* 52px */
  --t-cta: clamp(4rem, 1rem + 13vw, 8.125rem);        /* 130px */
  --t-lead: clamp(1.15rem, 0.95rem + 1vw, 1.5rem);    /* 24px */

  /* Layout */
  --pad-y: clamp(4.5rem, 3rem + 6vw, 7.5rem);         /* ~120px */
  --pad-x: clamp(1.5rem, 0.5rem + 4vw, 4rem);         /* 24–64px */
  --max-w: 1440px;

  --dur: 380ms;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--asfalto);
  color: var(--cal);
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }

.wrap {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--pad-x);
}

.display {
  font-family: var(--font-display);
  font-weight: 400;
  text-transform: uppercase;
  line-height: 0.82;
  letter-spacing: 0.01em;
  margin: 0;
}

.accent { color: var(--accent); }

.eyebrow {
  font-weight: 700;
  font-size: 0.8125rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0;
}

/* Botones -------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-family: var(--font-body);
  font-weight: 800;
  font-size: 0.95rem;
  border-radius: 999px;
  padding: 0.75em 1.5em;
  cursor: pointer;
  border: 1.5px solid transparent;
  transition: transform var(--dur) var(--ease), background var(--dur),
    color var(--dur), border-color var(--dur), opacity var(--dur);
}
.btn--accent { background: var(--accent); color: var(--accent-ink); }
.btn--accent:hover { transform: translateY(-2px); opacity: 0.9; }
.btn--ghost { border-color: #333; color: var(--cal); }
.btn--ghost:hover { border-color: var(--cal); transform: translateY(-2px); }

/* Reveal --------------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 1.1s var(--ease), transform 1.1s var(--ease);
  will-change: opacity, transform;
}
.reveal.is-in { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: 150ms; }
.reveal[data-delay="2"] { transition-delay: 300ms; }
.reveal[data-delay="3"] { transition-delay: 450ms; }

/* ============================================================
   Nav
   ============================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(11, 11, 11, 0.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--hairline);
}
.nav__inner {
  max-width: var(--max-w);
  margin-inline: auto;
  padding: 1.1rem var(--pad-x);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}
.nav__logo {
  font-family: var(--font-display);
  font-size: 1.375rem;
  line-height: 0.78;
  text-transform: uppercase;
}
.nav__logo span { display: block; }
.nav__links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}
.nav__links a {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--text-3);
  transition: color var(--dur);
}
.nav__links a:hover { color: var(--cal); }
/* El CTA conserva la tinta oscura sobre el verde: gana a la regla de color del nav. */
.nav__links a.btn--accent,
.nav__links a.btn--accent:hover { color: var(--accent-ink); font-weight: 700; }
.nav__toggle { display: none; }

/* ============================================================
   Hero
   ============================================================ */
.hero {
  text-align: center;
  padding: clamp(4.5rem, 3rem + 6vw, 6.875rem) var(--pad-x) var(--pad-y);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  width: 70vw;
  max-width: 900px;
  aspect-ratio: 1;
  top: -10%;
  left: 50%;
  transform: translateX(-50%);
  background: radial-gradient(circle, rgba(0, 226, 138, 0.12), transparent 60%);
  filter: blur(10px);
  pointer-events: none;
  z-index: 0;
}
.hero > * { position: relative; z-index: 1; }
.hero__eyebrow { margin-bottom: clamp(1.5rem, 1rem + 2vw, 2.5rem); }
.hero__title {
  font-size: var(--t-hero);
  line-height: 0.74;
}
.hero__title span { display: block; }
.hero__lead {
  margin: clamp(1.75rem, 1rem + 2vw, 2.5rem) auto 0;
  max-width: 720px;
  font-size: var(--t-lead);
  font-weight: 500;
  color: var(--text-2);
}
.hero__lead b { color: var(--cal); font-weight: 700; }
.hero__actions {
  margin-top: clamp(2rem, 1.5rem + 2vw, 2.75rem);
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

/* ============================================================
   Section base
   ============================================================ */
.section {
  padding-block: var(--pad-y);
  border-top: 1px solid var(--hairline);
}
.section__head {
  text-align: center;
  max-width: 760px;
  margin-inline: auto;
  margin-bottom: clamp(2.5rem, 2rem + 3vw, 4.5rem);
}
.section__head .num {
  font-family: var(--font-display);
  color: var(--accent);
  font-size: 1.5rem;
  display: block;
  margin-bottom: 0.5rem;
}
.section__head h2 { font-size: var(--t-h2-lg); }
.section__head p {
  margin: 1rem 0 0;
  color: var(--text-4);
  font-size: 1.125rem;
}

/* Qué es (01) --------------------------------------------- */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 1rem + 5vw, 5rem);
  align-items: start;
}
.about__num {
  font-family: var(--font-display);
  color: var(--accent);
  font-size: 1.5rem;
  display: block;
  margin-bottom: 1rem;
}
.about h2 { font-size: var(--t-h2-sm); }
.about__body p { margin: 0 0 1.25rem; }
.about__body p:first-child { font-size: 1.3125rem; color: var(--text-2); }
.about__body p:last-child { font-size: 1.125rem; color: var(--text-4); margin-bottom: 0; }

/* Manifiesto (02) ----------------------------------------- */
.manifesto__list {
  max-width: 1100px;
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  column-gap: clamp(2rem, 1rem + 5vw, 5rem);
}
.manifesto__item {
  display: flex;
  align-items: baseline;
  gap: 0.9em;
  padding: 1.05rem 0;
  border-bottom: 1px solid var(--hairline);
  font-size: var(--t-lead);
  font-weight: 600;
}
.manifesto__item .arrow { color: var(--accent); flex: none; }
.manifesto__item--star {
  color: var(--accent);
  font-weight: 800;
  font-family: var(--font-display);
  text-transform: uppercase;
  grid-column: 1 / -1;
  border-bottom: none;
  font-size: clamp(1.6rem, 1rem + 2.5vw, 2.75rem);
  padding-top: 1.75rem;
}

/* Frase clave --------------------------------------------- */
.frase {
  background: var(--accent);
  color: var(--accent-ink);
  text-align: center;
  padding: clamp(5rem, 3rem + 8vw, 8.75rem) var(--pad-x);
  border-top: none;
}
.frase__pre {
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: var(--t-frase-sm);
  line-height: 0.98;
  color: rgba(11, 11, 11, 0.55);
  max-width: 22ch;
  margin: 0 auto 0.35em;
}
.frase__main {
  font-family: var(--font-display);
  text-transform: uppercase;
  font-size: var(--t-frase-lg);
  line-height: 0.9;
  max-width: 20ch;
  margin: 0 auto;
}

/* Súmate (03) --------------------------------------------- */
.share__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--hairline);
  border-left: 1px solid var(--hairline);
  margin-bottom: clamp(2.5rem, 2rem + 3vw, 3.5rem);
}
.share__card {
  border-right: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
  padding: clamp(1.75rem, 1.2rem + 2.5vw, 3rem);
  transition: background var(--dur) var(--ease);
}
.share__card:hover { background: var(--surface); }
.share__card .n {
  font-family: var(--font-display);
  color: var(--accent);
  font-size: 4rem;
  line-height: 0.8;
  display: block;
  margin-bottom: 0.5rem;
}
.share__card h3 { font-size: 1.375rem; font-weight: 800; margin: 0 0 0.6rem; }
.share__card p { margin: 0; color: var(--text-4); font-size: 0.9375rem; }
.share__socials {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  justify-content: center;
}

/* Aliados (04) -------------------------------------------- */
.allies__sub {
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 0.9rem;
  color: var(--text-4);
  margin: 0 0 1.25rem;
}
.allies__sub + .allies__grid { margin-bottom: 3rem; }
.allies__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: clamp(0.75rem, 0.5rem + 1vw, 1.25rem);
}
.logo-cell {
  height: 140px;
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: 12px;
  display: grid;
  place-items: center;
  color: var(--text-4);
  font-weight: 700;
  font-size: 0.85rem;
  padding: 1rem;
  text-align: center;
  transition: border-color var(--dur), color var(--dur);
}
.logo-cell:hover { border-color: var(--hairline-2); }
.logo-cell__img {
  max-height: 100px;
  max-width: 100%;
  object-fit: contain;
}
.logo-cell--add {
  background: transparent;
  border-style: dashed;
  border-color: var(--hairline-2);
  color: var(--accent);
}
.logo-cell--add:hover { color: var(--accent); border-color: var(--accent); }

/* Registra (05) ------------------------------------------- */
.register__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 1rem + 5vw, 5rem);
  align-items: start;
}
.register__num {
  font-family: var(--font-display);
  color: var(--accent);
  font-size: 1.5rem;
  display: block;
  margin-bottom: 1rem;
}
.register h2 { font-size: var(--t-h2-sm); }
.register__intro p { color: var(--text-2); margin: 1.25rem 0 0; font-size: 1.125rem; }
.form {
  background: var(--surface);
  border: 1px solid var(--hairline);
  border-radius: 16px;
  padding: clamp(1.5rem, 1rem + 2vw, 2.5rem);
  display: flex;
  flex-direction: column;
  gap: 1.125rem;
}
.field { display: flex; flex-direction: column; gap: 0.4rem; }
.field label { font-size: 0.85rem; font-weight: 600; color: var(--text-3); }
.field input,
.field select {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--cal);
  background: var(--asfalto);
  border: 1px solid var(--hairline-2);
  border-radius: 10px;
  padding: 0.85em 1em;
  transition: border-color var(--dur);
}
.field input:focus,
.field select:focus { outline: none; border-color: var(--accent); }
.form__ok {
  color: var(--accent);
  font-weight: 600;
  font-size: 0.95rem;
  margin: 0;
}
.form__ok[hidden] { display: none; }

/* FAQ (06) ------------------------------------------------ */
.faq {
  max-width: 900px;
  margin-inline: auto;
}
.faq__item { border-bottom: 1px solid var(--hairline); }
.faq__q {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--cal);
  font-family: var(--font-body);
  font-size: 1.5rem;
  font-weight: 800;
  padding: 1.5rem 2.5rem 1.5rem 0;
  position: relative;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}
.faq__q::after {
  content: "+";
  font-weight: 400;
  color: var(--accent);
  transition: transform var(--dur) var(--ease);
}
.faq__item.open .faq__q::after { transform: rotate(45deg); }
.faq__a {
  max-height: 0;
  overflow: hidden;
  color: var(--text-4);
  font-size: 1.0625rem;
  transition: max-height var(--dur) var(--ease), padding var(--dur) var(--ease);
}
.faq__item.open .faq__a { max-height: 300px; padding-bottom: 1.5rem; }

/* CTA final + footer -------------------------------------- */
.cta {
  text-align: center;
  padding-block: var(--pad-y);
  border-top: 1px solid var(--hairline);
}
.cta__title { font-size: var(--t-cta); line-height: 0.82; }
.cta__title span { display: block; }
.cta .btn { margin-top: clamp(1.75rem, 1rem + 2vw, 2.5rem); }
.cta__hashtags {
  margin-top: clamp(2.5rem, 2rem + 3vw, 4rem);
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}
.htag {
  border: 1px solid var(--hairline-2);
  border-radius: 999px;
  padding: 0.55em 1.15em;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-3);
  transition: transform var(--dur) var(--ease), color var(--dur), border-color var(--dur);
}
.htag--main { color: var(--accent); border-color: var(--accent); }
.htag:hover { transform: translateY(-2px); color: var(--cal); border-color: var(--cal); }

.footer {
  border-top: 1px solid var(--hairline);
  padding-block: 2.5rem;
}
.footer__inner {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--pad-x);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  color: var(--text-4);
  font-size: 0.9rem;
}
.footer a { color: var(--accent); }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 900px) {
  .about__grid,
  .register__grid { grid-template-columns: 1fr; }
  .manifesto__list { grid-template-columns: 1fr; }
  .manifesto__item--star { grid-column: 1; }
  .share__cards { grid-template-columns: 1fr; }
  .allies__grid { grid-template-columns: repeat(2, 1fr); }
  .nav__links { display: none; }
  .nav__links.open {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
    background: var(--asfalto);
    border-bottom: 1px solid var(--hairline);
    padding: 1.5rem var(--pad-x);
  }
  .nav__toggle {
    display: inline-flex;
    background: none;
    border: none;
    color: var(--cal);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.25rem;
  }
}
@media (max-width: 520px) {
  .allies__grid { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero::before { display: none; }
  * { transition-duration: 0.01ms !important; }
}