/* ==========================================================================
   ICEI de Tamaulipas A.C. — hoja de estilos principal
   ========================================================================== */

:root {
  --verde-oscuro: #2c3b32;
  --verde-marca: #52705d;
  --dorado: #b08d3e;
  --dorado-suave: #e8d9a8;
  --verde-claro: #f0f1ec;
  --gris: #6b7178;
  --texto: #2a2e2b;
  --texto-suave: #5c6360;
  --blanco: #ffffff;
  --borde: #e2e4de;
  --sombra: 0 10px 30px rgba(44, 59, 50, 0.10);
  --radio: 16px;
  --max: 1160px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--texto);
  background: var(--blanco);
  line-height: 1.6;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4 { line-height: 1.2; margin: 0 0 .5em; color: var(--verde-oscuro); }
h1 { font-size: clamp(2rem, 4vw, 3rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
h3 { font-size: 1.2rem; }
p { margin: 0 0 1em; color: var(--texto-suave); }

.eyebrow {
  display: inline-block;
  font-weight: 700;
  font-size: .78rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--dorado);
  margin-bottom: .6em;
}

/* ---------- Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 1rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: var(--dorado);
  color: var(--blanco);
  box-shadow: 0 8px 20px rgba(176, 141, 62, .35);
}
.btn-primary:hover { background: #94722e; }

.btn-whatsapp {
  background: #25d366;
  color: var(--blanco);
  box-shadow: 0 8px 20px rgba(37, 211, 102, .35);
}
.btn-whatsapp:hover { background: #1ebd58; }

.btn-outline {
  background: transparent;
  color: var(--blanco);
  border-color: rgba(255,255,255,.7);
}
.btn-outline:hover { background: rgba(255,255,255,.12); }

.btn-outline-dark {
  background: transparent;
  color: var(--verde-marca);
  border-color: var(--verde-marca);
}
.btn-outline-dark:hover { background: var(--verde-claro); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--blanco);
  border-bottom: 1px solid var(--borde);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 12px 24px;
  max-width: var(--max);
  margin: 0 auto;
}
.logo-link { display: flex; align-items: center; }
.logo-link img { height: 52px; width: auto; }

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.main-nav a {
  font-weight: 600;
  font-size: .95rem;
  color: var(--texto);
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
}
.main-nav a:hover,
.main-nav a[aria-current="page"] {
  color: var(--verde-marca);
  border-bottom-color: var(--dorado);
}

.header-cta { display: flex; align-items: center; gap: 14px; }
.header-cta .btn { padding: 10px 18px; font-size: .9rem; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 26px;
  height: 3px;
  background: var(--verde-oscuro);
  margin: 5px 0;
  border-radius: 2px;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  color: var(--blanco);
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center 30%;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(115deg, rgba(30,38,33,.94) 0%, rgba(30,38,33,.88) 38%, rgba(44,59,50,.55) 68%, rgba(44,59,50,.30) 100%);
}
.hero-content {
  position: relative;
  padding: 96px 24px 110px;
  max-width: var(--max);
  margin: 0 auto;
}
.hero-content h1 { color: var(--blanco); margin-bottom: .2em; }
.hero-tagline {
  font-size: clamp(1.15rem, 2.2vw, 1.5rem);
  color: #d9b969;
  font-weight: 700;
  margin-bottom: .6em;
}
.hero-content > p.lead {
  color: #e6e4da;
  font-size: 1.05rem;
  max-width: 560px;
}
.badge-row { display: flex; flex-wrap: wrap; gap: 10px; margin: 18px 0 30px; }
.badge {
  background: rgba(255,255,255,.14);
  border: 1px solid rgba(255,255,255,.3);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* promo ribbon overlapping hero */
.promo-strip {
  position: relative;
  margin: -56px auto 0;
  max-width: 760px;
  background: var(--blanco);
  border-radius: var(--radio);
  box-shadow: var(--sombra);
  padding: 22px 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  z-index: 5;
}
.promo-strip .promo-text .eyebrow { color: var(--dorado); margin-bottom: .2em; }
.promo-strip .price-old { color: var(--texto-suave); text-decoration: line-through; font-size: .95rem; }
.promo-strip .price-new { color: var(--dorado); font-size: 2rem; font-weight: 800; }

/* ---------- Secciones generales ---------- */
section { padding: 90px 0; }
section.tight { padding: 60px 0; }
.section-head { max-width: 680px; margin: 0 0 40px; }
.section-head.center { margin: 0 auto 48px; text-align: center; }

.bg-suave { background: var(--verde-claro); }
.bg-oscuro { background: var(--verde-oscuro); color: var(--blanco); }
.bg-oscuro h2, .bg-oscuro h3 { color: var(--blanco); }
.bg-oscuro p { color: #d7d9d3; }

/* ---------- Grids / Cards ---------- */
.grid {
  display: grid;
  gap: 24px;
}
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--blanco);
  border: 1px solid var(--borde);
  border-radius: var(--radio);
  padding: 28px;
}
.card.shadow { box-shadow: var(--sombra); border: none; }
.card h3 { margin-bottom: .35em; }
.card p { margin: 0; }

.icon-circle {
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--verde-marca);
  color: var(--blanco);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 16px;
  flex-shrink: 0;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}
.split img { border-radius: var(--radio); box-shadow: var(--sombra); }

.stat-block { display: flex; align-items: baseline; gap: 14px; margin-bottom: 18px; }
.stat-block .num { font-size: 3.4rem; font-weight: 800; color: var(--dorado); line-height: 1; }
.stat-block .label { color: var(--blanco); font-weight: 700; }

/* numbered list rows (documentos, cursos) */
.num-row {
  display: flex;
  gap: 18px;
  align-items: flex-start;
  padding: 18px 20px;
  border-radius: 12px;
  background: var(--verde-claro);
  margin-bottom: 12px;
}
.num-row .num {
  background: var(--verde-marca);
  color: var(--blanco);
  font-weight: 800;
  border-radius: 10px;
  min-width: 44px;
  height: 44px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.num-row.alt { background: #f4f8f5; }

/* schedule / info dark cards */
.info-duo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  border-radius: var(--radio);
  overflow: hidden;
}
.info-duo > div {
  background: var(--verde-oscuro);
  color: var(--blanco);
  padding: 28px 30px;
}
.info-duo > div:first-child { border-right: 1px solid rgba(255,255,255,.14); }
.info-duo .tag { color: #d9b969; font-weight: 700; font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; }
.info-duo .big { font-size: 1.4rem; font-weight: 800; margin: .3em 0; }

/* pricing */
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.price-card {
  text-align: center;
  padding: 32px 20px;
  border-radius: var(--radio);
  background: var(--verde-claro);
  border: 2px solid transparent;
}
.price-card.destacada {
  background: var(--verde-oscuro);
  color: var(--blanco);
  transform: translateY(-10px);
  box-shadow: var(--sombra);
}
.price-card.destacada .price-label { color: #e8d9a8; }
.price-card .price-label { text-transform: uppercase; font-weight: 700; font-size: .78rem; letter-spacing: .06em; color: var(--verde-marca); margin-bottom: 10px; display:block; }
.price-card .price { font-size: 2.4rem; font-weight: 800; color: var(--dorado); }
.price-card.destacada .price { color: #e3b94c; }

/* course cards */
.course-card {
  display: flex;
  gap: 16px;
  padding: 22px;
  border-radius: var(--radio);
  background: var(--blanco);
  border: 1px solid var(--borde);
  transition: box-shadow .15s ease, transform .15s ease;
}
.course-card:hover { box-shadow: var(--sombra); transform: translateY(-3px); }
.course-card .num {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--dorado);
  min-width: 40px;
}

/* CTA final */
.cta-final {
  background: linear-gradient(120deg, var(--verde-oscuro), #3d5245);
  color: var(--blanco);
  border-radius: var(--radio);
  padding: 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 30px;
  flex-wrap: wrap;
}
.cta-final h2 { color: var(--blanco); margin-bottom: .2em; }
.cta-final p { color: #dfe0d8; }

/* contact page */
.contact-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 40px; align-items: start; }
.contact-item { display: flex; gap: 16px; margin-bottom: 26px; }
.contact-item .icon-circle { margin-bottom: 0; }
.map-wrap { border-radius: var(--radio); overflow: hidden; box-shadow: var(--sombra); border: 1px solid var(--borde); }
.map-wrap iframe { width: 100%; height: 360px; border: 0; display: block; }

/* footer */
.site-footer {
  background: var(--verde-oscuro);
  color: #d7d9d3;
  padding: 56px 0 26px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-grid h4 { color: var(--blanco); margin-bottom: .8em; font-size: 1rem; }
.footer-grid a { display: block; margin-bottom: 10px; color: #d7d9d3; }
.footer-grid a:hover { color: var(--blanco); }
.footer-logo { height: 44px; margin-bottom: 14px; filter: brightness(0) invert(1); opacity: .92; }
.footer-brand { display: flex; align-items: center; gap: 16px; margin-bottom: 14px; }
.footer-brand .footer-logo { height: 44px; margin-bottom: 0; }
.footer-brand .footer-seal { height: 54px; filter: brightness(0) invert(1); opacity: .78; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.14);
  padding-top: 22px;
  font-size: .85rem;
  color: #9aa39c;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

/* whatsapp floating button */
.wa-float {
  position: fixed;
  bottom: 22px;
  right: 22px;
  background: #25d366;
  color: #fff;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 25px rgba(0,0,0,.25);
  z-index: 60;
  font-size: 1.6rem;
}

/* page hero (interior pages) */
.page-hero {
  background: var(--verde-oscuro);
  color: var(--blanco);
  padding: 64px 0 56px;
}
.page-hero h1 { color: var(--blanco); }
.breadcrumb { color: #d9b969; font-size: .85rem; margin-bottom: 14px; }
.breadcrumb a:hover { color: var(--blanco); }

/* note box */
.note {
  background: #fff7e6;
  border: 1px solid #ffe1a8;
  color: #6b4f12;
  padding: 16px 20px;
  border-radius: 12px;
  font-size: .92rem;
}

/* responsive */
@media (max-width: 900px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .split { grid-template-columns: 1fr; gap: 30px; }
  .info-duo { grid-template-columns: 1fr; }
  .info-duo > div:first-child { border-right: none; border-bottom: 1px solid rgba(255,255,255,.14); }
  .pricing-grid { grid-template-columns: 1fr; }
  .price-card.destacada { transform: none; order: -1; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 720px) {
  .main-nav, .header-cta .btn-outline-dark { display: none; }
  .nav-toggle { display: block; }
  body.nav-open .main-nav {
    display: flex;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--blanco);
    flex-direction: column;
    padding: 18px 24px 24px;
    gap: 16px;
    border-bottom: 1px solid var(--borde);
    box-shadow: var(--sombra);
  }
  .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .cta-final { flex-direction: column; text-align: center; }
  .promo-strip { flex-direction: column; text-align: center; margin-top: -40px; }
  .hero-content { padding: 64px 20px 90px; }
}