/* iterok — style.css
   Paleta oficial:
   carbón  #333333
   blanco  #FFFFFF
   cian    #00E5FF  (acento sobre carbón)
   teal    #0891B3  (acento sobre blanco)
   gris    #8A8A8A  (iter + corchetes sobre blanco)
*/

@import url('https://fonts.googleapis.com/css2?family=Space+Mono:ital,wght@0,400;0,700;1,400;1,700&family=Inter:wght@400;500&display=swap');

/* ── Reset & base ─────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --carbon:  #333333;
  --white:   #FFFFFF;
  --cyan:    #00E5FF;
  --teal:    #0891B3;
  --gray:    #8A8A8A;
  --gray-light: #F2F2F2;

  --font-mono: 'Space Mono', monospace;
  --font-body: 'Inter', sans-serif;

  --section-pad: clamp(4rem, 8vw, 7rem) clamp(1.25rem, 6vw, 5rem);
  --max-w: 900px;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--carbon);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

/* ── Utilidades ───────────────────────────────── */
.mono { font-family: var(--font-mono); }
.sr-only { position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); border:0; }

/* ── Nav ──────────────────────────────────────── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.1rem clamp(1.25rem, 6vw, 5rem);
  background: rgba(51,51,51,0.96);
  backdrop-filter: blur(8px);
  box-shadow: 0 1px 12px rgba(0, 0, 0, 0.25);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
nav.nav-visible {
  opacity: 1;
  pointer-events: auto;
}

.nav-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}
.nav-logo-img {
  height: 28px;
  width: auto;
  display: block;
}

.nav-right { display: flex; align-items: center; gap: 1.5rem; }

.lang-toggle {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--gray);
  background: none;
  border: 1px solid #555;
  padding: 0.3rem 0.7rem;
  border-radius: 3px;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s;
  letter-spacing: 0.05em;
}
.lang-toggle:hover { color: var(--cyan); border-color: var(--cyan); }

.nav-cta {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--carbon);
  background: var(--cyan);
  padding: 0.4rem 1rem;
  border-radius: 3px;
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.03em;
  transition: opacity 0.2s;
}
.nav-cta:hover { opacity: 0.85; }

/* ── Hero ─────────────────────────────────────── */
#hero {
  background: var(--carbon);
  color: var(--white);
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--section-pad);
}

.hero-inner { max-width: var(--max-w); }

.hero-logo {
  display: block;
  width: clamp(160px, 28vw, 260px);
  margin: 0 0 1.5rem 0;
}

.hero-tagline {
  font-family: var(--font-mono);
  font-size: clamp(0.7rem, 1.5vw, 0.85rem);
  color: var(--cyan);
  letter-spacing: 0.08em;
  margin-bottom: 1.5rem;
}

.hero-headline {
  font-family: var(--font-mono);
  font-size: clamp(2rem, 5.5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  color: var(--white);
  margin-bottom: 1.5rem;
}
.hero-headline .accent { color: var(--cyan); font-style: italic; }

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: #b0b0b0;
  max-width: 600px;
  margin-bottom: 2.5rem;
  line-height: 1.65;
}

.hero-cta {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--carbon);
  background: var(--cyan);
  padding: 0.8rem 1.75rem;
  border-radius: 3px;
  text-decoration: none;
  letter-spacing: 0.03em;
  transition: opacity 0.2s, transform 0.2s;
}
.hero-cta:hover { opacity: 0.88; transform: translateY(-1px); }

/* ── Sección genérica ─────────────────────────── */
section { padding: var(--section-pad); }
.section-inner { max-width: var(--max-w); margin: 0 auto; }

.section-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 0.75rem;
}

.section-title {
  font-family: var(--font-mono);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 1.25rem;
  color: var(--carbon);
}

.section-body {
  font-size: 1.05rem;
  color: #444;
  max-width: 680px;
  line-height: 1.75;
}

/* ── Problema ─────────────────────────────────── */
#problema { background: var(--gray-light); }

.pain-list {
  list-style: none;
  margin-top: 2rem;
  display: grid;
  gap: 1rem;
}

.pain-list li {
  display: grid;
  grid-template-columns: 2rem 1fr;
  align-items: start;
  gap: 0.75rem;
  font-size: 1rem;
  color: var(--carbon);
}

.pain-list li::before {
  content: '—';
  font-family: var(--font-mono);
  color: var(--teal);
  font-weight: 700;
}

/* ── Solución ─────────────────────────────────── */
#solucion { background: var(--white); }

.benefits {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.benefit-card {
  border: 1px solid #e0e0e0;
  border-radius: 4px;
  padding: 1.5rem;
}

.benefit-card .b-icon {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: var(--teal);
  margin-bottom: 0.75rem;
  display: block;
}

.benefit-card h3 {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--carbon);
  margin-bottom: 0.5rem;
}

.benefit-card p {
  font-size: 0.92rem;
  color: #555;
  line-height: 1.65;
}

/* placeholder muestras */
.demo-placeholder {
  margin-top: 2.5rem;
  border: 1.5px dashed #ccc;
  border-radius: 4px;
  padding: 2rem 1.5rem;
  text-align: center;
  color: var(--gray);
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

/* ── Cómo trabajamos ──────────────────────────── */
#como { background: var(--carbon); color: var(--white); }
#como .section-title { color: var(--white); }
#como .section-body  { color: #b0b0b0; }
#como .section-label { color: var(--cyan); }

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.step {
  border-left: 2px solid #555;
  padding-left: 1.1rem;
}

.step .step-verb {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--cyan);
  margin-bottom: 0.4rem;
  letter-spacing: 0.04em;
}

.step h3 {
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.4rem;
}

.step p {
  font-size: 0.9rem;
  color: #999;
  line-height: 1.6;
}

.founders {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid #484848;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.founder h4 {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--white);
  margin-bottom: 0.3rem;
}

.founder p {
  font-size: 0.88rem;
  color: #999;
  line-height: 1.6;
}

/* ── Contacto ─────────────────────────────────── */
#contacto { background: var(--white); }

.contact-placeholder {
  margin-top: 2rem;
  border: 1.5px dashed #ccc;
  border-radius: 4px;
  padding: 2rem 1.5rem;
  text-align: center;
  color: var(--gray);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.8;
}

/* ── Footer ───────────────────────────────────── */
footer {
  background: var(--carbon);
  color: #666;
  padding: 2rem clamp(1.25rem, 6vw, 5rem);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-logo {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  color: var(--white);
}
.footer-logo .ok { color: var(--cyan); font-style: italic; }

.footer-tagline {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--white);
  letter-spacing: 0.04em;
}

/* ── Responsive ───────────────────────────────── */
@media (max-width: 600px) {
  .founders { grid-template-columns: 1fr; }
  .nav-cta  { display: none; }
}

/* ── Reduced motion ───────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition: none !important; animation: none !important; }
}