:root {
  --primary-blue: #2B6CB0;     /* Azul corporativo de tu logo */
  --accent-cyan: #00A3E0;      /* Celeste de tu logo */
  --dark-navy: #1A365D;        /* Azul oscuro elegante para encabezados/footer */
  --light-bg: #F7FAFC;         /* Fondo claro limpio */
  --text-dark: #2D3748;        /* Texto principal */
  --text-muted: #718096;      /* Texto secundario */
  --white: #FFFFFF;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Segoe UI', system-ui, -apple-system, sans-serif; color: var(--text-dark); background: var(--white); line-height: 1.6; }

/* Estilos de la cabecera */
.site-header { display: flex; justify-content: space-between; align-items: center; padding: 15px 5%; background: var(--white); border-bottom: 2px solid var(--light-bg); position: sticky; top: 0; z-index: 1000; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.brand-logo { height: 42px; width: auto; }
.brand-text { display: flex; flex-direction: column; }
.brand-main { font-weight: 800; font-size: 1.3rem; color: var(--primary-blue); letter-spacing: 1px; }
.brand-sub { font-size: 0.65rem; color: var(--accent-cyan); font-weight: 700; letter-spacing: 0.5px; }

.nav { display: flex; align-items: center; gap: 20px; }
.nav a { text-decoration: none; color: var(--text-dark); font-weight: 600; font-size: 0.95rem; transition: color 0.2s; }
.nav a:hover { color: var(--accent-cyan); }
.social-header { display: flex; gap: 10px; border-left: 1px solid #E2E8F0; padding-left: 15px; }
.social-header a { color: var(--primary-blue); font-size: 1.1rem; }
.social-header a.wa-icon { color: #25D366; }

/* Sección Principal (Hero) */
.hero { background: linear-gradient(135deg, var(--dark-navy) 0%, var(--primary-blue) 100%); color: var(--white); padding: 100px 5% 80px; position: relative; }
.hero-content { max-width: 800px; margin: 0 auto; text-align: center; }
.eyebrow { color: var(--accent-cyan); font-weight: 700; font-size: 0.85rem; letter-spacing: 1.5px; margin-bottom: 10px; }
.hero h1 { font-size: 2.8rem; line-height: 1.2; margin-bottom: 15px; font-weight: 700; }
.hero h1 em { font-style: normal; color: var(--accent-cyan); }
.hero-text { font-size: 1.15rem; color: #E2E8F0; margin-bottom: 30px; }
.hero-actions { display: flex; justify-content: center; gap: 15px; flex-wrap: wrap; }

/* Botones */
.button { display: inline-flex; align-items: center; gap: 8px; padding: 12px 24px; border-radius: 6px; font-weight: 700; text-decoration: none; transition: transform 0.2s, background-color 0.2s; }
.button-accent { background: #25D366; color: var(--white); }
.button-accent:hover { background: #20BA5A; transform: translateY(-2px); }
.button-outline { border: 2px solid var(--accent-cyan); color: var(--white); }
.button-outline:hover { background: var(--accent-cyan); transform: translateY(-2px); }

/* Secciones generales */
.section { padding: 70px 5%; }
.intro-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; max-width: 1100px; margin: 0 auto; align-items: center; }
.intro-copy { font-size: 1.05rem; color: var(--text-dark); margin-bottom: 15px; }

/* Tarjetas de tratamientos */
.section-dark { background: var(--light-bg); }
.section-heading { text-align: center; margin-bottom: 40px; }
.section-heading h2 { font-size: 2rem; color: var(--dark-navy); }
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 25px; max-width: 1100px; margin: 0 auto; }
.card { background: var(--white); border-radius: 8px; padding: 20px; box-shadow: 0 4px 6px rgba(0,0,0,0.05); border-top: 4px solid var(--accent-cyan); }
.card-img { width: 100%; height: 180px; object-fit: cover; border-radius: 6px; margin-bottom: 15px; }
.card span { color: var(--primary-blue); font-weight: 800; font-size: 0.9rem; }
.card h3 { color: var(--dark-navy); margin: 5px 0 10px; }
.card p { color: var(--text-muted); font-size: 0.95rem; }

/* Equipo médico */
.doctors-grid { display: flex; justify-content: center; gap: 30px; flex-wrap: wrap; margin-top: 30px; }
.doctor-card { background: var(--white); border: 1px solid #E2E8F0; padding: 30px; border-radius: 10px; text-align: center; min-width: 280px; box-shadow: 0 2px 4px rgba(0,0,0,0.03); }
.doctor-avatar { font-size: 2.5rem; color: var(--primary-blue); margin-bottom: 15px; }
.doctor-card h3 { color: var(--dark-navy); font-size: 1.3rem; }
.doctor-title { color: var(--accent-cyan); font-weight: 700; font-size: 0.9rem; }
.doctor-spec { color: var(--text-muted); font-size: 0.9rem; margin-top: 5px; }

/* Contacto y Redes */
.contact { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; max-width: 1100px; margin: 0 auto; }
.contact-social-buttons { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.btn-social { padding: 8px 14px; border-radius: 5px; text-decoration: none; color: var(--white); font-weight: 600; font-size: 0.85rem; display: inline-flex; align-items: center; gap: 6px; }
.btn-wa { background: #25D366; }
.btn-fb { background: #1877F2; }
.btn-ig { background: #E4405F; }
.btn-tk { background: #000000; }
.btn-yt { background: #FF0000; }

.contact-card-box { background: var(--dark-navy); color: var(--white); padding: 40px; border-radius: 10px; display: flex; flex-direction: column; justify-content: center; text-align: center; }
.contact-card-box h3 { font-size: 1.8rem; margin-bottom: 10px; color: var(--accent-cyan); }
.contact-card-box p { margin-bottom: 25px; color: #E2E8F0; }
.block-btn { width: 100%; justify-content: center; }

/* Footer */
.footer { background: var(--dark-navy); color: #A0AEC0; padding: 40px 5% 20px; text-align: center; font-size: 0.9rem; }
.footer-brand { display: flex; align-items: center; justify-content: center; gap: 10px; margin-bottom: 20px; }
.footer-logo { height: 35px; width: auto; }
.footer-brand strong { color: var(--white); font-size: 1.2rem; }
.footer-socials { display: flex; justify-content: center; gap: 15px; margin-bottom: 20px; }
.footer-socials a { color: var(--accent-cyan); font-size: 1.2rem; }

/* WhatsApp Flotante */
.whatsapp-float { position: fixed; bottom: 25px; right: 25px; background: #25D366; color: var(--white); width: 60px; height: 60px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 32px; box-shadow: 0 4px 10px rgba(0,0,0,0.3); z-index: 1000; text-decoration: none; transition: transform 0.2s; }
.whatsapp-float:hover { transform: scale(1.1); }

@media (max-width: 768px) {
  .intro-grid, .contact { grid-template-columns: 1fr; }
  .hero h1 { font-size: 2rem; }
  .social-header { display: none; }
}