/* ============================================
   SISTEMA DE DISEÑO — Agente de Marketing IA
   Concepto: "Monitor de signos vitales del negocio"
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,opsz,wght@0,9..144,300;0,9..144,400;0,9..144,500;0,9..144,600;0,9..144,700;1,9..144,400&family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  /* --- Color --- */
  --ink: #0E1B22;          /* fondo noche — el agente trabajando */
  --ink-soft: #15262F;     /* superficie elevada sobre ink */
  --ink-line: rgba(248,244,236,0.12);
  --paper: #F8F4EC;        /* fondo día — el entregable tangible */
  --paper-soft: #EFE9DC;
  --paper-line: rgba(14,27,34,0.10);
  --signal: #FF6B47;       /* pulso / acento vital */
  --signal-dim: #C24E32;
  --signal-glow: rgba(255,107,71,0.35);
  --teal: #4FD1C5;         /* segundo acento, frío — usado con moderación */
  --ink-text: #0E1B22;
  --paper-text: #F8F4EC;
  --muted-on-ink: rgba(248,244,236,0.62);
  --muted-on-paper: rgba(14,27,34,0.60);

  /* --- Tipografía --- */
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'SFMono-Regular', monospace;

  /* --- Layout --- */
  --maxw: 1180px;
  --radius: 14px;
  --radius-sm: 8px;
  --gutter: clamp(20px, 5vw, 64px);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--paper);
  color: var(--ink-text);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}

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

.section { padding: clamp(64px, 10vw, 120px) var(--gutter); }
.wrap { max-width: var(--maxw); margin: 0 auto; }
.on-ink { background: var(--ink); color: var(--paper-text); }
.on-paper { background: var(--paper); color: var(--ink-text); }
.on-paper-soft { background: var(--paper-soft); color: var(--ink-text); }

/* --- Tipografía base --- */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.08;
  margin: 0;
}
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
}
.on-ink .eyebrow { color: var(--signal); }
.on-paper .eyebrow, .on-paper-soft .eyebrow { color: var(--signal-dim); }

.eyebrow::before {
  content: '';
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 4px var(--signal-glow);
  animation: pulse-dot 2.4s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.35; }
}

h1 { font-size: clamp(2.4rem, 5.2vw, 4.2rem); }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.7rem); }
h3 { font-size: clamp(1.3rem, 2vw, 1.6rem); }

p { margin: 0; }
.lede {
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  line-height: 1.55;
}
.on-ink .lede, .on-ink p.muted { color: var(--muted-on-ink); }
.on-paper .lede, .on-paper p.muted, .on-paper-soft p.muted { color: var(--muted-on-paper); }

.mono-label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  opacity: 0.65;
}

/* --- Botones --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.96rem;
  padding: 14px 26px;
  border-radius: 100px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.2s ease, background 0.2s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn-signal {
  background: var(--signal);
  color: #0E1B22;
  box-shadow: 0 8px 24px -8px var(--signal-glow);
}
.btn-signal:hover { box-shadow: 0 12px 28px -6px var(--signal-glow); background: #ff7c5c; }
.btn-ghost-ink {
  background: transparent;
  border-color: var(--ink-line);
  color: var(--paper-text);
}
.btn-ghost-ink:hover { background: rgba(248,244,236,0.06); }
.btn-ghost-paper {
  background: transparent;
  border-color: var(--paper-line);
  color: var(--ink-text);
}
.btn-ghost-paper:hover { background: rgba(14,27,34,0.05); }
.btn-block { width: 100%; justify-content: center; }
.btn[disabled] { opacity: 0.5; cursor: not-allowed; transform: none !important; }

/* --- Nav --- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(14,27,34,0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--ink-line);
}
.nav-inner {
  max-width: var(--maxw); margin: 0 auto;
  padding: 16px var(--gutter);
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--paper-text);
  display: flex; align-items: center; gap: 10px;
}
.nav-logo .dot { color: var(--signal); }
.nav-links { display: flex; gap: 28px; align-items: center; }
.nav-links a {
  color: var(--muted-on-ink);
  font-size: 0.92rem;
  font-weight: 500;
  transition: color 0.15s ease;
}
.nav-links a:hover { color: var(--paper-text); }
.nav-cta { display: flex; align-items: center; gap: 14px; }
.nav-toggle { display: none; background: none; border: none; color: var(--paper-text); font-size: 1.4rem; cursor: pointer; }

@media (max-width: 880px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
}

/* --- Línea de pulso (firma visual) --- */
.pulse-divider {
  width: 100%;
  height: 64px;
  overflow: hidden;
  display: block;
}
.pulse-divider svg { width: 100%; height: 100%; display: block; }
.pulse-line {
  fill: none;
  stroke: var(--signal);
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  filter: drop-shadow(0 0 6px var(--signal-glow));
}

/* --- Grids reutilizables --- */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(28px, 5vw, 64px); align-items: center; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
@media (max-width: 980px) {
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .grid-4 { grid-template-columns: 1fr; }
}

/* --- Tarjetas de vitales (módulos Alma/Motor/Caja/Voz) --- */
.vital-card {
  background: var(--ink-soft);
  border: 1px solid var(--ink-line);
  border-radius: var(--radius);
  padding: 28px 24px;
  position: relative;
  overflow: hidden;
}
.vital-card .vital-icon {
  width: 40px; height: 40px;
  margin-bottom: 18px;
  color: var(--signal);
}
.vital-card .vital-readout {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--muted-on-ink);
  margin-top: 14px;
  letter-spacing: 0.04em;
}
.vital-card h3 { color: var(--paper-text); margin-bottom: 8px; }
.vital-card p { color: var(--muted-on-ink); font-size: 0.95rem; }

/* --- Mockup de chat (hero) --- */
.chat-mock {
  background: var(--ink-soft);
  border: 1px solid var(--ink-line);
  border-radius: 20px;
  padding: 20px;
  box-shadow: 0 40px 80px -30px rgba(0,0,0,0.6);
}
.chat-mock-head {
  display: flex; align-items: center; gap: 10px;
  padding-bottom: 14px; margin-bottom: 14px;
  border-bottom: 1px solid var(--ink-line);
}
.chat-mock-head .avatar {
  width: 34px; height: 34px; border-radius: 50%;
  background: linear-gradient(135deg, var(--signal), var(--signal-dim));
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 600; color: #0E1B22; font-size: 0.9rem;
}
.chat-mock-head .who { font-size: 0.88rem; font-weight: 600; color: var(--paper-text); }
.chat-mock-head .status { font-size: 0.72rem; color: var(--teal); font-family: var(--font-mono); }
.bubble {
  max-width: 86%;
  padding: 11px 15px;
  border-radius: 14px;
  font-size: 0.88rem;
  line-height: 1.45;
  margin-bottom: 10px;
  opacity: 0;
  animation: bubble-in 0.5s ease forwards;
}
.bubble.agent { background: #1D3038; color: var(--paper-text); border-bottom-left-radius: 4px; }
.bubble.user { background: var(--signal); color: #0E1B22; margin-left: auto; border-bottom-right-radius: 4px; font-weight: 500; }
@keyframes bubble-in { to { opacity: 1; transform: translateY(0); } from { transform: translateY(6px); } }

/* --- FAQ acordeón --- */
.faq-item { border-bottom: 1px solid var(--paper-line); }
.faq-q {
  width: 100%; text-align: left; background: none; border: none;
  padding: 22px 0; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  font-family: var(--font-body); font-weight: 600; font-size: 1.02rem; color: var(--ink-text);
}
.faq-q .icon { font-size: 1.3rem; color: var(--signal-dim); transition: transform 0.25s ease; flex-shrink: 0; }
.faq-item.open .faq-q .icon { transform: rotate(45deg); }
.faq-a {
  max-height: 0; overflow: hidden; transition: max-height 0.3s ease;
}
.faq-a-inner { padding-bottom: 20px; color: var(--muted-on-paper); font-size: 0.96rem; line-height: 1.6; max-width: 640px; }

/* --- Tarjetas de plan --- */
.plan-card {
  background: var(--ink-soft);
  border: 1px solid var(--ink-line);
  border-radius: var(--radius);
  padding: 32px 28px;
  display: flex; flex-direction: column; gap: 18px;
  position: relative;
}
.plan-card.featured { border-color: var(--signal); box-shadow: 0 0 0 1px var(--signal), 0 30px 60px -30px var(--signal-glow); }
.plan-card .featured-tag {
  position: absolute; top: -13px; left: 28px;
  background: var(--signal); color: #0E1B22;
  font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.06em; text-transform: uppercase;
  padding: 4px 10px; border-radius: 100px; font-weight: 600;
}
.plan-card h3 { color: var(--paper-text); font-size: 1.3rem; }
.plan-card .price {
  font-family: var(--font-display); font-weight: 600;
  color: var(--paper-text); font-size: 2.1rem; line-height: 1;
}
.plan-card .price .period { font-family: var(--font-body); font-size: 0.85rem; font-weight: 500; color: var(--muted-on-ink); }
.plan-card .price-old { font-family: var(--font-mono); font-size: 0.85rem; color: var(--muted-on-ink); text-decoration: line-through; }
.plan-card ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 11px; flex: 1; }
.plan-card li { display: flex; gap: 10px; align-items: flex-start; font-size: 0.92rem; color: var(--muted-on-ink); }
.plan-card li::before { content: '✓'; color: var(--teal); font-weight: 700; flex-shrink: 0; }
.plan-discount-note {
  font-family: var(--font-mono); font-size: 0.72rem; color: var(--teal);
  background: rgba(79,209,197,0.1); border: 1px solid rgba(79,209,197,0.25);
  padding: 6px 10px; border-radius: var(--radius-sm); display: none;
}

/* --- Testimonios --- */
.testimonial-card {
  background: var(--paper); border: 1px solid var(--paper-line);
  border-radius: var(--radius); padding: 28px;
}
.testimonial-avatar {
  width: 52px; height: 52px; border-radius: 50%;
  background: var(--paper-soft); border: 1px dashed var(--ink-line);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-size: 0.62rem; text-align: center; color: var(--muted-on-paper);
  margin-bottom: 16px;
}
.testimonial-card blockquote { margin: 0 0 16px; font-size: 1.02rem; line-height: 1.55; font-family: var(--font-display); font-weight: 400; }
.testimonial-card .who { font-family: var(--font-mono); font-size: 0.78rem; color: var(--muted-on-paper); }
.testimonial-pending {
  border: 1.5px dashed var(--paper-line); border-radius: var(--radius);
  padding: 28px; display: flex; flex-direction: column; gap: 10px; justify-content: center;
  color: var(--muted-on-paper); font-family: var(--font-mono); font-size: 0.78rem; text-align: center;
}

/* --- Formularios --- */
.field {
  display: flex; flex-direction: column; gap: 6px;
}
.field label { font-size: 0.82rem; font-weight: 600; }
.field input, .field select {
  font-family: var(--font-body); font-size: 0.95rem;
  padding: 12px 14px; border-radius: var(--radius-sm);
  border: 1px solid var(--paper-line); background: #fff;
  color: var(--ink-text);
}
.on-ink .field input, .on-ink .field select {
  background: var(--ink); border-color: var(--ink-line); color: var(--paper-text);
}
.field input:focus, .field select:focus { outline: 2px solid var(--signal); outline-offset: 1px; }
.form-row { display: flex; gap: 14px; flex-wrap: wrap; }
.form-row .field { flex: 1; min-width: 180px; }
.form-note { font-size: 0.78rem; }
.form-status { font-family: var(--font-mono); font-size: 0.8rem; margin-top: 10px; min-height: 1em; }
.form-status.ok { color: var(--teal); }
.form-status.err { color: var(--signal); }

/* --- Footer / Creador --- */
.creator-block {
  display: flex; align-items: center; gap: 22px; flex-wrap: wrap;
  padding: 36px; background: var(--ink-soft); border: 1px solid var(--ink-line); border-radius: var(--radius);
}
.creator-avatar {
  width: 64px; height: 64px; border-radius: 50%; flex-shrink: 0;
  background: linear-gradient(135deg, var(--signal), var(--teal));
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 600; font-size: 1.4rem; color: #0E1B22;
}
.creator-info { flex: 1; min-width: 200px; }
.creator-info h4 { color: var(--paper-text); font-size: 1.05rem; margin-bottom: 4px; }
.creator-info p { color: var(--muted-on-ink); font-size: 0.9rem; }
.creator-links { display: flex; gap: 10px; flex-wrap: wrap; }
.creator-links a {
  width: 38px; height: 38px; border-radius: 50%;
  border: 1px solid var(--ink-line);
  display: flex; align-items: center; justify-content: center;
  color: var(--paper-text); transition: background 0.15s ease, border-color 0.15s ease;
}
.creator-links a:hover { background: rgba(255,107,71,0.15); border-color: var(--signal); }
.creator-links a svg { width: 17px; height: 17px; }

footer.site-footer {
  background: var(--ink); color: var(--muted-on-ink);
  padding: 56px var(--gutter) 32px;
  border-top: 1px solid var(--ink-line);
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 32px; margin-bottom: 40px; }
.footer-grid h5 { color: var(--paper-text); font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.06em; font-family: var(--font-mono); margin-bottom: 14px; font-weight: 500; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.footer-grid a { font-size: 0.9rem; color: var(--muted-on-ink); }
.footer-grid a:hover { color: var(--paper-text); }
.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; font-size: 0.8rem; padding-top: 24px; border-top: 1px solid var(--ink-line); font-family: var(--font-mono); }
@media (max-width: 880px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }

/* --- Utilidades --- */
.tag {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: var(--font-mono); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.05em;
  padding: 5px 11px; border-radius: 100px; border: 1px solid var(--paper-line); color: var(--muted-on-paper);
}
.center { text-align: center; }
.stack { display: flex; flex-direction: column; gap: 10px; }
.mb-8 { margin-bottom: 8px; } .mb-16 { margin-bottom: 16px; } .mb-24 { margin-bottom: 24px; } .mb-40 { margin-bottom: 40px; }

/* --- Modal de checkout --- */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(14,27,34,0.7);
  display: none; align-items: center; justify-content: center; z-index: 100; padding: 20px;
}
.modal-overlay.open { display: flex; }
.modal-box {
  background: var(--paper); border-radius: var(--radius); padding: 32px; max-width: 420px; width: 100%;
  position: relative;
}
.modal-close { position: absolute; top: 16px; right: 16px; background: none; border: none; font-size: 1.3rem; cursor: pointer; color: var(--muted-on-paper); }

/* --- Scroll reveal --- */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in { opacity: 1; transform: translateY(0); }

/* --- Animación de la línea de pulso --- */
.pulse-line {
  stroke-dasharray: 1400;
  stroke-dashoffset: 1400;
  animation: pulse-draw 3.2s ease-out forwards;
}
@keyframes pulse-draw {
  to { stroke-dashoffset: 0; }
}

/* --- Tipografía de artículos (blog) --- */
.prose { max-width: 680px; margin-inline: auto; }
.prose h2 { font-size: 1.5rem; margin-top: 2.2em; margin-bottom: 0.6em; }
.prose h3 { font-size: 1.2rem; margin-top: 1.8em; margin-bottom: 0.5em; font-family: var(--font-body); font-weight: 700; }
.prose p { margin-bottom: 1.3em; font-size: 1.04rem; line-height: 1.7; color: var(--ink-text); }
.prose ul, .prose ol { margin: 0 0 1.3em; padding-left: 1.3em; font-size: 1.04rem; line-height: 1.7; }
.prose li { margin-bottom: 0.5em; }
.prose strong { font-weight: 700; }
.prose blockquote {
  margin: 1.6em 0; padding: 4px 0 4px 22px;
  border-left: 3px solid var(--signal);
  font-family: var(--font-display); font-style: italic; font-size: 1.15rem;
  color: var(--ink-text);
}
.blog-card {
  background: var(--paper); border: 1px solid var(--paper-line); border-radius: var(--radius);
  padding: 24px; display: block; transition: transform 0.15s ease, box-shadow 0.2s ease;
}
.blog-card:hover { transform: translateY(-3px); box-shadow: 0 16px 32px -16px rgba(14,27,34,0.18); }
.post-cta {
  background: var(--ink); border-radius: var(--radius); padding: 32px; text-align: center;
  margin: 2.6em auto 0;
}
.post-cta h3 { color: var(--paper-text); margin-bottom: 10px; }
.post-cta p { color: var(--muted-on-ink); margin-bottom: 20px; }

/* --- Reduced motion --- */
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
  html { scroll-behavior: auto; }
}

/* --- Focus visible --- */
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible {
  outline: 2px solid var(--signal); outline-offset: 2px;
}