/* ==========================================================
   ALIANZA URBANA ESTADO DE MÉXICO, A.C.
   styles.css — Estilos personalizados (complemento a Tailwind)
   ========================================================== */

/* Fuente Inter desde Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* Variables de marca */
:root {
  --red-main:    #CC0000;
  --red-hover:   #A80000;
  --red-light:   #FFF0F0;
  --dark-text:   #111111;
  --dark-muted:  #5A5A5A;
  --transition:  0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Scroll suave global */
html {
  scroll-behavior: smooth;
  font-family: 'Inter', sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ── Scrollbar personalizada ────────────────────────── */
::-webkit-scrollbar        { width: 8px; }
::-webkit-scrollbar-track  { background: #F1F5F9; }
::-webkit-scrollbar-thumb  { background: #CBD5E1; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #94A3B8; }

/* ── Logo: reglas anti-distorsión ────────────────────
   Garantiza que el logo nunca se estire ni se recorte,
   siempre centrado y proporcional.
─────────────────────────────────────────────────────── */
img[alt*="Logo"],
img[alt*="logo"],
img[src*="logo"] {
  display: block;
  object-fit: contain;
  object-position: center;
  max-width: 100%;
  height: auto;
  /* Evitar que el navegador aplique subpixel rendering agresivo */
  image-rendering: -webkit-optimize-contrast;
}

/* ── Botón flotante WhatsApp ──────────────────────── */
.whatsapp-float {
  position: fixed;
  bottom: 1.75rem;
  right: 1.75rem;
  z-index: 99;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3.5rem;
  height: 3.5rem;
  background-color: #25D366;
  color: #ffffff;
  border-radius: 50%;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.35);
  transition: transform var(--transition), box-shadow var(--transition), background-color var(--transition);
  animation: wa-pulse 2.5s ease-in-out infinite;
  text-decoration: none;
}

.whatsapp-float:hover {
  background-color: #128C7E;
  transform: scale(1.12);
  box-shadow: 0 8px 24px rgba(18, 140, 126, 0.45);
  animation: none;
}

@keyframes wa-pulse {
  0%   { box-shadow: 0 0 0 0   rgba(37, 211, 102, 0.5); }
  70%  { box-shadow: 0 0 0 16px rgba(37, 211, 102, 0);  }
  100% { box-shadow: 0 0 0 0   rgba(37, 211, 102, 0);   }
}

/* ── Micro-animación hover para tarjetas ─────────── */
.card-hover {
  transition: transform var(--transition), box-shadow var(--transition);
}
.card-hover:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 28px -8px rgba(0, 0, 0, 0.10);
}

/* ── Barra header scroll shadow ──────────────────── */
.header-scrolled {
  box-shadow: 0 2px 16px rgba(0,0,0,0.08);
}