/* =========================================================
   Dosil — Inteligencia Artificial aplicada
   Sistema de diseño (paleta y tipografía heredadas de ticsia.com)
   ========================================================= */

/* --- Reset mínimo --- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }

/* --- Tokens de diseño --- */
:root {
  --color-primary: #005bc1;
  --color-primary-dark: #004491;
  --color-accent: #e56536;
  --color-accent-hover: #c44f2b;
  --color-grey: #404040;
  --color-bg-neutral: #fff;
  --color-bg-light: #f8fafc;
  --color-white: #fff;
  --color-black: #1a1a1a;
  --text-main: #2d2d2d;
  --text-muted: #666;
  --text-light: #fff;
  --whatsapp: #25d366;

  --font-heading: 'Outfit', sans-serif;
  --font-body: 'Inter', sans-serif;

  --radius-pill: 50px;
  --radius-md: 16px;
  --shadow-md: 0 10px 30px rgba(0, 33, 77, 0.10);
  --shadow-lg: 0 20px 50px rgba(0, 33, 77, 0.16);

  --container-w: 1180px;
}

body {
  font-family: var(--font-body);
  color: var(--text-main);
  background: var(--color-bg-neutral);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  color: var(--color-black);
  line-height: 1.15;
}

h1 { font-size: clamp(2.1rem, 1.6rem + 2.2vw, 3.6rem); font-weight: 700; }
h2 { font-size: clamp(1.7rem, 1.4rem + 1.4vw, 2.6rem); font-weight: 700; }
h3 { font-size: clamp(1.25rem, 1.1rem + 0.6vw, 1.5rem); font-weight: 600; }
p { color: var(--text-muted); }

.container { max-width: var(--container-w); margin: 0 auto; padding: 0 1.5rem; }
.section { padding: 5rem 0; }
.section-alt { background: var(--color-bg-light); }
.section-dark { background: var(--color-black); color: var(--text-light); }
.section-dark h2, .section-dark h3 { color: var(--color-white); }
.section-dark p { color: #cfd6e0; }

.eyebrow {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.75rem;
}

.section-head { max-width: 720px; margin: 0 auto 3rem; text-align: center; }
.section-head p { font-size: 1.05rem; }

/* --- Skip link (accesibilidad) --- */
.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--color-primary); color: #fff;
  padding: 0.75rem 1.25rem; z-index: 10000; border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

/* --- Botones --- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  font-family: var(--font-heading); font-weight: 600; font-size: 0.98rem;
  padding: 0.9rem 1.9rem; border-radius: var(--radius-pill);
  transition: all 0.25s ease; white-space: nowrap;
}
.btn-primary { background: var(--color-accent); color: #fff; box-shadow: 0 8px 20px rgba(229,101,54,0.28); }
.btn-primary:hover { background: var(--color-accent-hover); transform: translateY(-2px); box-shadow: 0 12px 26px rgba(196,79,43,0.32); }
.btn-outline { background: transparent; color: var(--color-primary); border: 2px solid var(--color-primary); }
.btn-outline:hover { background: var(--color-primary); color: #fff; transform: translateY(-2px); }
.btn-light { background: #fff; color: var(--color-primary); }
.btn-light:hover { background: var(--color-bg-light); transform: translateY(-2px); }
.btn-sm { padding: 0.6rem 1.3rem; font-size: 0.88rem; }
.btn:focus-visible, a:focus-visible, button:focus-visible {
  outline: 3px solid var(--color-primary); outline-offset: 2px;
}

/* --- Header / navegación --- */
.site-header {
  position: sticky; top: 0; z-index: 500;
  background: rgba(255,255,255,0.92); backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0,0,0,0.06);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; padding: 0.9rem 0; }
.brand { display: flex; align-items: center; gap: 0.6rem; }
.brand img { height: 34px; width: auto; }
.brand-name { font-family: var(--font-heading); font-weight: 700; font-size: 1.15rem; color: var(--color-black); }

.nav-links { display: none; align-items: center; gap: 1.9rem; }
.nav-links a {
  font-family: var(--font-heading); font-weight: 500; font-size: 0.95rem; color: var(--text-main);
  position: relative; padding: 0.25rem 0;
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: -4px; height: 2px; width: 0;
  background: var(--color-accent); transition: width 0.2s ease;
}
.nav-links a:hover::after, .nav-links a[aria-current="page"]::after { width: 100%; }
.nav-links a[aria-current="page"] { color: var(--color-primary); }
.nav-cta { display: none; align-items: center; gap: 0.7rem; }

.nav-ingreso {
  border: 2px solid var(--color-primary); color: var(--color-primary) !important;
  padding: 0.5rem 1.1rem; border-radius: var(--radius-pill); font-weight: 600 !important;
}
.nav-ingreso:hover { background: var(--color-primary); color: #fff !important; }

.hamburger {
  display: flex; flex-direction: column; gap: 5px; padding: 0.5rem;
}
.hamburger span { width: 24px; height: 2px; background: var(--color-black); border-radius: 2px; transition: all 0.25s ease; }
.hamburger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.is-open span:nth-child(2) { opacity: 0; }
.hamburger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: none; flex-direction: column; gap: 0.2rem; padding: 1rem 1.5rem 1.5rem;
  border-top: 1px solid rgba(0,0,0,0.06); background: #fff;
}
.mobile-menu.is-open { display: flex; }
.mobile-menu a {
  font-family: var(--font-heading); font-weight: 500; padding: 0.8rem 0; color: var(--text-main);
  border-bottom: 1px solid rgba(0,0,0,0.05);
}
.mobile-menu a[aria-current="page"] { color: var(--color-primary); }
.mobile-menu .btn { margin-top: 1rem; width: 100%; }

@media (min-width: 960px) {
  .nav-links { display: flex; }
  .nav-cta { display: flex; }
  .hamburger, .mobile-menu { display: none !important; }
}

/* --- Hero --- */
.hero {
  padding: 4.5rem 0 5rem;
  background: radial-gradient(circle at 15% 20%, rgba(0,91,193,0.08), transparent 45%),
              radial-gradient(circle at 85% 80%, rgba(229,101,54,0.08), transparent 45%),
              var(--color-bg-light);
}
.hero-grid { display: grid; gap: 3rem; align-items: center; }
.hero-copy p.lead { font-size: 1.15rem; color: var(--text-main); max-width: 560px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2rem; }
.hero-stats { display: flex; gap: 2.2rem; margin-top: 2.5rem; flex-wrap: wrap; }
.hero-stats div strong { display: block; font-family: var(--font-heading); font-size: 1.7rem; color: var(--color-primary); }
.hero-stats div span { font-size: 0.85rem; color: var(--text-muted); }

.hero-visual {
  background: linear-gradient(145deg, var(--color-primary), var(--color-primary-dark));
  border-radius: 24px; padding: 2.5rem; color: #fff; box-shadow: var(--shadow-lg);
  position: relative; overflow: hidden;
}
.hero-visual::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(circle at 80% 0%, rgba(229,101,54,0.35), transparent 60%);
}
.chat-mock { position: relative; z-index: 1; display: flex; flex-direction: column; gap: 0.7rem; }
.chat-bubble {
  background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.18);
  border-radius: 14px; padding: 0.8rem 1rem; font-size: 0.92rem; max-width: 88%;
}
.chat-bubble.me { align-self: flex-end; background: var(--color-accent); border-color: transparent; }
.chat-tag { display: inline-flex; align-items: center; gap: 0.4rem; font-size: 0.78rem; background: rgba(255,255,255,0.15); padding: 0.3rem 0.7rem; border-radius: var(--radius-pill); margin-bottom: 1rem; }
.dot-live { width: 8px; height: 8px; border-radius: 50%; background: #34d399; display: inline-block; animation: pulse 1.6s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }

@media (min-width: 900px) {
  .hero-grid { grid-template-columns: 1.05fr 0.95fr; }
}

/* --- Tarjetas de venta cruzada --- */
.cross-grid { display: grid; gap: 1.6rem; }
@media (min-width: 760px) { .cross-grid { grid-template-columns: repeat(3, 1fr); } }
.cross-card {
  background: #fff; border: 1px solid rgba(0,0,0,0.06); border-radius: var(--radius-md);
  padding: 2rem; box-shadow: var(--shadow-md); display: flex; flex-direction: column; gap: 0.9rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.cross-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.cross-icon {
  width: 54px; height: 54px; border-radius: 14px; display: flex; align-items: center; justify-content: center;
  background: rgba(0,91,193,0.09); color: var(--color-primary); font-size: 1.5rem;
}
.cross-card h3 { font-size: 1.2rem; }
.cross-card .cross-link { font-family: var(--font-heading); font-weight: 600; color: var(--color-accent); margin-top: auto; }

/* --- Tarjetas glass --- */
.card-glass {
  background: rgba(255,255,255,0.65); backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.5); border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

/* --- Grid genérico de features --- */
.feature-grid { display: grid; gap: 1.4rem; }
@media (min-width: 720px) { .feature-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .feature-grid.cols-3 { grid-template-columns: repeat(3, 1fr); } }
.feature-item { display: flex; gap: 1rem; padding: 1.5rem; border-radius: var(--radius-md); background: #fff; border: 1px solid rgba(0,0,0,0.06); }
.feature-item .icon { flex-shrink: 0; width: 44px; height: 44px; border-radius: 12px; background: rgba(229,101,54,0.12); color: var(--color-accent); display: flex; align-items: center; justify-content: center; font-size: 1.3rem; }
.feature-item h3 { font-size: 1.05rem; margin-bottom: 0.3rem; }
.feature-item p { font-size: 0.94rem; }

/* --- Timeline / cómo funciona --- */
.steps { display: grid; gap: 1.5rem; counter-reset: step; }
@media (min-width: 760px) { .steps { grid-template-columns: repeat(4, 1fr); } }
.step { position: relative; padding-top: 2.6rem; }
.step::before {
  counter-increment: step; content: counter(step);
  position: absolute; top: 0; left: 0; width: 2.2rem; height: 2.2rem; border-radius: 50%;
  background: var(--color-primary); color: #fff; display: flex; align-items: center; justify-content: center;
  font-family: var(--font-heading); font-weight: 700;
}
.step h3 { font-size: 1rem; margin-bottom: 0.3rem; }
.step p { font-size: 0.9rem; }

/* --- Integraciones --- */
.integration-card {
  display: grid; gap: 1.6rem; align-items: center;
  background: #fff; border: 1px solid rgba(0,0,0,0.06); border-radius: var(--radius-md);
  padding: 2rem; box-shadow: var(--shadow-md); margin-bottom: 1.6rem;
}
@media (min-width: 860px) { .integration-card { grid-template-columns: 220px 1fr; } }
.integration-logo { display: flex; align-items: center; justify-content: center; background: var(--color-bg-light); border-radius: 14px; padding: 1.2rem; height: 100%; }
.integration-logo img { max-height: 70px; }
.integration-body ul { display: flex; flex-direction: column; gap: 0.5rem; margin: 0.9rem 0 1.2rem; }
.integration-body li { font-size: 0.92rem; color: var(--text-main); padding-left: 1.3rem; position: relative; }
.integration-body li::before { content: "✓"; position: absolute; left: 0; color: var(--color-primary); font-weight: 700; }
.integration-tagline { font-family: var(--font-heading); font-weight: 600; color: var(--color-primary); font-size: 0.9rem; margin-bottom: 0.4rem; }

/* --- Casos reales / agentes --- */
.agent-card {
  background: #fff; border: 1px solid rgba(0,0,0,0.06); border-radius: var(--radius-md); padding: 1.8rem;
  box-shadow: var(--shadow-md); display: flex; flex-direction: column; gap: 0.8rem;
}
.agent-card.featured { border: 2px solid var(--color-accent); position: relative; }
.agent-badge {
  position: absolute; top: -12px; left: 1.5rem; background: var(--color-accent); color: #fff;
  font-family: var(--font-heading); font-size: 0.72rem; font-weight: 700; padding: 0.3rem 0.8rem;
  border-radius: var(--radius-pill); letter-spacing: 0.04em; text-transform: uppercase;
}
.agent-avatar {
  width: 56px; height: 56px; border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-family: var(--font-heading); font-weight: 700; font-size: 1.3rem;
}
.agent-sector { font-size: 0.82rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.03em; }
.agent-cards-grid { display: grid; gap: 1.4rem; }
@media (min-width: 720px) { .agent-cards-grid.secondary { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .agent-cards-grid.secondary { grid-template-columns: repeat(4, 1fr); } }

/* --- Ingreso --- */
.access-grid { display: grid; gap: 1.6rem; }
@media (min-width: 720px) { .access-grid { grid-template-columns: repeat(2, 1fr); } }
.access-card {
  background: #fff; border-radius: var(--radius-md); padding: 2.4rem; text-align: center;
  box-shadow: var(--shadow-md); border: 1px solid rgba(0,0,0,0.06);
  display: flex; flex-direction: column; align-items: center; gap: 1.2rem;
}
.access-card img { height: 56px; }
.access-note { font-size: 0.85rem; color: var(--text-muted); background: var(--color-bg-light); padding: 0.9rem 1.2rem; border-radius: 10px; }

/* --- FAQ --- */
.faq-item { border-bottom: 1px solid rgba(0,0,0,0.08); padding: 1.2rem 0; }
.faq-item summary {
  cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center;
  font-family: var(--font-heading); font-weight: 600; color: var(--color-black); gap: 1rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; font-size: 1.4rem; color: var(--color-accent); flex-shrink: 0; }
.faq-item[open] summary::after { content: "–"; }
.faq-item p { margin-top: 0.8rem; font-size: 0.95rem; }

/* --- CTA final --- */
.cta-final {
  background: linear-gradient(120deg, var(--color-primary), var(--color-primary-dark));
  color: #fff; border-radius: 28px; padding: 3.5rem 2rem; text-align: center;
  margin: 0 auto;
}
.cta-final h2 { color: #fff; }
.cta-final p { color: #dbe6f7; max-width: 560px; margin: 1rem auto 2rem; }

/* --- Footer --- */
.site-footer { background: var(--color-black); color: #cfd6e0; padding: 3.5rem 0 2rem; }
.footer-grid { display: grid; gap: 2.2rem; margin-bottom: 2.5rem; }
@media (min-width: 760px) { .footer-grid { grid-template-columns: 1.4fr 1fr 1fr; } }
.footer-brand img { height: 32px; margin-bottom: 0.9rem; }
.footer-brand p { color: #9aa6b8; font-size: 0.9rem; max-width: 320px; }
.site-footer h4 { color: #fff; font-size: 0.95rem; margin-bottom: 1rem; }
.site-footer ul { display: flex; flex-direction: column; gap: 0.6rem; }
.site-footer a { color: #b9c2d1; font-size: 0.92rem; }
.site-footer a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-top: 1.5rem; display: flex; flex-wrap: wrap; gap: 0.8rem; justify-content: space-between; font-size: 0.82rem; color: #8a94a6; }

/* --- WhatsApp flotante --- */
.whatsapp-float {
  color: #fff;
  text-align: center;
  z-index: 9999;
  background-color: var(--whatsapp);
  border-radius: 50px;
  width: 60px;
  height: 60px;
  transition: all .3s;
  display: flex;
  align-items: center;
  justify-content: center;
  position: fixed;
  bottom: 40px;
  right: 40px;
  box-shadow: 2px 2px 15px #00000026;
}
.whatsapp-float:hover { transform: scale(1.08); }
.whatsapp-float svg { width: 30px; height: 30px; }

@media (max-width: 768px) {
  .whatsapp-float { width: 50px; height: 50px; bottom: 20px; right: 20px; }
  .whatsapp-float svg { width: 26px; height: 26px; }
}

/* --- Utilidades --- */
.text-center { text-align: center; }
.mt-2 { margin-top: 2rem; }
.legal-content h2 { margin-top: 2.2rem; margin-bottom: 0.8rem; }
.legal-content p, .legal-content li { color: var(--text-main); margin-bottom: 0.7rem; }
.legal-content ul { padding-left: 1.3rem; list-style: disc; }
.external-badge {
  display: inline-flex; align-items: center; gap: 0.35rem; font-size: 0.78rem;
  color: var(--text-muted); background: var(--color-bg-light); padding: 0.25rem 0.6rem; border-radius: var(--radius-pill);
}