/* ============================================================
   Ridario — Design System
   Paleta: azul marino · azul petróleo · dorado
   Sitio de servicios profesionales B2B (blueprint greengrowth)
   ============================================================ */

:root {
  /* Azul marino (color primario oscuro) */
  --navy: #15294e;
  --navy-osc: #0c1a35;
  /* Azul petróleo (color de apoyo) */
  --petroleo: #186a80;
  --petroleo-osc: #11505f;
  --petroleo-claro: #e7eff4;
  /* Dorado (acento / CTA) */
  --dorado: #d4af37;
  --dorado-osc: #b3922a;
  /* Neutros */
  --crema: #f6f8fa;
  --blanco: #ffffff;
  --tinta: #1d2634;
  --gris: #5b6875;
  --borde: #dae2ea;
  --radio: 10px;
  --sombra: 0 2px 12px rgba(12, 26, 53, .08);
  --wrap: 1100px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--tinta);
  background: var(--blanco);
  line-height: 1.6;
  font-size: 16px;
}

h1, h2, h3, h4 { font-family: Georgia, "Times New Roman", serif; line-height: 1.25; color: var(--navy-osc); }
h1 { font-size: clamp(1.9rem, 4vw, 2.9rem); }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); margin-bottom: .6em; }
h3 { font-size: 1.15rem; }

p { margin-bottom: 1em; }
a { color: var(--petroleo); }
a:hover { color: var(--dorado-osc); }
img { max-width: 100%; display: block; }

.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }

/* Skip link: oculto, visible solo al navegar con teclado */
.skip {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--navy-osc);
  color: #fff;
  padding: 10px 18px;
  border-radius: 0 0 var(--radio) 0;
  z-index: 100;
  text-decoration: none;
}
.skip:focus { left: 0; }

.section { padding: 64px 0; }
.section.alt { background: var(--crema); }
/* Nota: "verde" es el nombre legacy de la clase; hoy renderiza azul marino */
.section.verde { background: var(--navy); color: #e8edf5; }
.section.verde h2, .section.verde h3 { color: #fff; }

.eyebrow {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .75rem;
  font-weight: 700;
  color: var(--dorado-osc);
  margin-bottom: 10px;
}
.section.verde .eyebrow { color: var(--dorado); }

.lead { font-size: 1.15rem; color: var(--gris); max-width: 720px; }
.section.verde .lead { color: #ccd8ea; }

/* ---------- Botones ---------- */
.btn {
  display: inline-block;
  padding: 13px 26px;
  border-radius: var(--radio);
  font-weight: 700;
  text-decoration: none;
  border: 2px solid transparent;
  transition: transform .15s ease, box-shadow .15s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--sombra); }
.btn-primary { background: var(--dorado); color: var(--navy-osc); }
.btn-primary:hover { background: var(--dorado-osc); color: #fff; }
.btn-ghost { border-color: currentColor; color: inherit; background: transparent; }
.btn-sm { padding: 9px 18px; font-size: .9rem; }
.cta-group { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 24px; }

/* ---------- Topbar + Header ---------- */
.topbar { background: var(--navy-osc); color: #c7d3e6; font-size: .85rem; }
.topbar .wrap { display: flex; justify-content: flex-end; gap: 22px; padding: 7px 20px; }
.topbar a { color: #c7d3e6; text-decoration: none; }
.topbar a:hover { color: var(--dorado); }

.site-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--blanco);
  border-bottom: 1px solid var(--borde);
}
.nav { display: flex; align-items: center; justify-content: space-between; min-height: 88px; }
.brand { display: flex; align-items: center; gap: 14px; text-decoration: none; }
.brand img { height: 64px; width: auto; border-radius: 8px; }
.brand span { font-family: Georgia, serif; font-weight: 700; font-size: 1.5rem; color: var(--navy-osc); }

.menu { display: flex; align-items: center; gap: 26px; }
.menu > a:not(.btn) { text-decoration: none; color: var(--tinta); font-weight: 600; font-size: .95rem; }
.menu > a:not(.btn):hover { color: var(--dorado-osc); }

.nav-toggle { display: none; }
.nav-burger { display: none; font-size: 1.6rem; cursor: pointer; color: var(--navy-osc); }

@media (max-width: 800px) {
  .nav-burger { display: block; }
  .menu {
    display: none;
    position: absolute; left: 0; right: 0; top: 100%;
    background: var(--blanco);
    flex-direction: column;
    align-items: flex-start;
    padding: 18px 20px;
    border-bottom: 1px solid var(--borde);
    box-shadow: var(--sombra);
  }
  .nav-toggle:checked ~ .menu { display: flex; }
  .site-header { position: relative; }
}

/* ---------- Hero ---------- */
.hero { background: linear-gradient(160deg, #1c3563 0%, var(--navy) 55%, var(--navy-osc) 100%); color: #e8edf5; padding: 84px 0 72px; }
.hero h1 { color: #fff; max-width: 780px; }
.hero .kicker { display: block; text-transform: uppercase; letter-spacing: .14em; font-size: .78rem; font-weight: 700; color: var(--dorado); margin-bottom: 16px; }
.hero .lead { color: #ccd8ea; margin-top: 14px; }
.hero .cta-group .btn-primary { background: var(--dorado); }
.hero .cta-group .btn-ghost { color: #fff; }

/* ---------- Barra de confianza ---------- */
.trustbar { background: var(--petroleo); border-top: 1px solid rgba(255,255,255,.08); padding: 14px 0; }
.trustbar .wrap { display: flex; flex-wrap: wrap; gap: 12px 34px; align-items: center; justify-content: center; color: #d9e8ee; font-size: .88rem; }
.trustbar strong { color: var(--dorado); }

/* ---------- TL;DR / De un vistazo ---------- */
.tldr {
  background: var(--petroleo-claro);
  border-left: 5px solid var(--dorado);
  border-radius: var(--radio);
  padding: 28px 30px;
}
.tldr p { color: var(--tinta); font-size: .98rem; }
.tldr .eyebrow { margin-bottom: 8px; }

/* ---------- Métricas ---------- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center; }
.stat b { display: block; font-family: Georgia, serif; font-size: clamp(1.8rem, 3.5vw, 2.6rem); color: var(--navy); }
.stat span { color: var(--gris); font-size: .92rem; }
@media (max-width: 700px) { .stats { grid-template-columns: repeat(2, 1fr); } }

/* ---------- Grillas y tarjetas ---------- */
.grid { display: grid; gap: 22px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 900px) { .grid-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .grid-2, .grid-3 { grid-template-columns: 1fr; } }

.card {
  background: var(--blanco);
  border: 1px solid var(--borde);
  border-radius: var(--radio);
  padding: 26px;
  box-shadow: var(--sombra);
}
.card h3 a { text-decoration: none; color: var(--navy-osc); }
.card h3 a:hover { color: var(--dorado-osc); }
.card p { color: var(--gris); font-size: .95rem; margin: 8px 0 14px; }
.card .more { font-weight: 700; font-size: .9rem; text-decoration: none; }

/* Tarjetas problema→solución */
.prob-card {
  background: var(--blanco);
  border: 1px solid var(--borde);
  border-left: 5px solid var(--dorado);
  border-radius: var(--radio);
  padding: 24px;
}
.prob-card h3 { font-family: inherit; font-size: 1rem; color: var(--navy-osc); margin-bottom: 10px; }
.prob-card p { font-size: .93rem; color: var(--gris); }
.prob-card .more { font-weight: 700; font-size: .88rem; text-decoration: none; white-space: nowrap; }

/* ---------- Chips ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.chip {
  background: var(--petroleo-claro);
  color: var(--petroleo-osc);
  font-size: .8rem;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 999px;
}

/* ---------- Tabs industrias ---------- */
.tabs input { display: none; }
.tabs label {
  display: inline-block;
  padding: 10px 18px;
  margin: 0 6px 8px 0;
  border: 1px solid var(--borde);
  border-radius: 999px;
  cursor: pointer;
  font-weight: 600;
  font-size: .92rem;
  background: var(--blanco);
}
.tabs input:checked + label { background: var(--petroleo); color: #fff; border-color: var(--petroleo); }
.tab-panel { display: none; padding-top: 22px; }
#tab-pymes:checked ~ #panel-pymes,
#tab-profesionales:checked ~ #panel-profesionales,
#tab-comercio:checked ~ #panel-comercio { display: block; }

/* ---------- Proceso numerado ---------- */
.steps { counter-reset: paso; display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
@media (max-width: 900px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .steps { grid-template-columns: 1fr; } }
.step { position: relative; padding-top: 44px; }
.step::before {
  counter-increment: paso;
  content: "0" counter(paso);
  position: absolute; top: 0; left: 0;
  font-family: Georgia, serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--dorado);
}
.step h3 { margin-bottom: 6px; }
.step p { color: var(--gris); font-size: .93rem; }

/* ---------- Tabla comparativa ---------- */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .93rem; background: var(--blanco); }
th, td { padding: 12px 14px; text-align: left; border-bottom: 1px solid var(--borde); vertical-align: top; }
thead th { background: var(--navy); color: #fff; font-weight: 700; }
tbody tr:nth-child(even) { background: var(--crema); }
td:first-child { font-weight: 600; color: var(--navy-osc); }

/* ---------- FAQ ---------- */
.faq details {
  background: var(--blanco);
  border: 1px solid var(--borde);
  border-radius: var(--radio);
  margin-bottom: 12px;
  overflow: hidden;
}
.faq summary {
  cursor: pointer;
  font-weight: 700;
  padding: 16px 20px;
  list-style: none;
  position: relative;
  color: var(--navy-osc);
}
.faq summary::after { content: "+"; position: absolute; right: 20px; font-size: 1.3rem; color: var(--dorado-osc); }
.faq details[open] summary::after { content: "–"; }
.faq details p { padding: 0 20px 16px; color: var(--gris); font-size: .95rem; }

/* ---------- CTA band ---------- */
.cta-band { text-align: center; }
.cta-band h2 { max-width: 640px; margin: 0 auto .5em; }
.cta-band p { max-width: 560px; margin: 0 auto 24px; }

/* ---------- Testimonios ---------- */
.quote { font-style: italic; color: var(--tinta); }
.quote footer { margin-top: 12px; font-style: normal; font-weight: 700; color: var(--petroleo-osc); font-size: .9rem; }

/* ---------- Checklist ---------- */
.checklist { list-style: none; }
.checklist li { padding-left: 30px; position: relative; margin-bottom: 10px; }
.checklist li::before { content: "✓"; position: absolute; left: 0; color: var(--dorado-osc); font-weight: 700; }

/* ---------- Breadcrumbs ---------- */
.breadcrumbs { font-size: .82rem; color: var(--gris); padding: 14px 0 0; }
.breadcrumbs a { color: var(--gris); text-decoration: none; }
.breadcrumbs a:hover { color: var(--dorado-osc); }

/* ---------- Sub-hero páginas internas ---------- */
.subhero { background: linear-gradient(160deg, #1c3563 0%, var(--navy) 55%, var(--navy-osc) 100%); color: #e8edf5; padding: 56px 0 48px; }
.subhero h1 { color: #fff; max-width: 720px; }
.subhero .kicker { display: block; text-transform: uppercase; letter-spacing: .14em; font-size: .76rem; font-weight: 700; color: var(--dorado); margin-bottom: 12px; }
.subhero .breadcrumbs a { color: #aab9d1; }
.subhero .lead { color: #ccd8ea; margin-top: 12px; }

/* ---------- Formulario ---------- */
.form-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.form-grid .full { grid-column: 1 / -1; }
@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } }
label.field { display: block; font-weight: 600; font-size: .88rem; color: var(--navy-osc); }
label.field span { display: block; margin-bottom: 6px; }
input[type=text], input[type=email], input[type=tel], select, textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--borde);
  border-radius: 8px;
  font: inherit;
  background: var(--blanco);
}
input:focus, select:focus, textarea:focus { outline: 2px solid var(--dorado); border-color: transparent; }

/* ---------- Notas legales ---------- */
.disclaimer { font-size: .8rem; color: var(--gris); font-style: italic; margin-top: 14px; }

/* ---------- Botón flotante de WhatsApp ---------- */
.whatsapp-fixed { position: fixed; right: 20px; bottom: 20px; z-index: 90; }
.whatsapp-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  background: #25d366;
  border-radius: 50%;
  box-shadow: 0 4px 16px rgba(0, 0, 0, .28);
  transition: transform .15s ease, box-shadow .15s ease;
}
.whatsapp-btn:hover { transform: scale(1.08); box-shadow: 0 6px 20px rgba(0, 0, 0, .32); }
.whatsapp-btn svg { width: 32px; height: 32px; fill: #fff; }

/* ---------- Footer ---------- */.site-footer { background: var(--navy-osc); color: #aab9d1; padding: 56px 0 28px; font-size: .92rem; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 36px; margin-bottom: 36px; }
@media (max-width: 800px) { .footer-grid { grid-template-columns: 1fr; } }
.site-footer h4 { color: #fff; margin-bottom: 12px; font-size: 1rem; }
.site-footer a { color: #aab9d1; text-decoration: none; display: block; margin-bottom: 8px; }
.site-footer a:hover { color: var(--dorado); }
.footer-legal { border-top: 1px solid rgba(255,255,255,.12); padding-top: 20px; font-size: .8rem; color: #7f90ad; }