/*
  Ritmo Sereno 45+ — Hoja de estilos
  Esta hoja define un estilo moderno con una combinación de colores inspirada en el
  atardecer colombiano: azul profundo, rojo vibrante y toques de amarillo. Se
  emplean fuentes limpias y un diseño modular con énfasis en tarjetas horizontales
  para los programas. Se prioriza la legibilidad y la adaptación a todo tipo de
  dispositivos.
*/

/* Variables de color */
:root {
  --color-primario: #2c3e50;   /* azul profundo */
  --color-secundario: #e74c3c; /* rojo vibrante */
  --color-acento: #f39c12;     /* amarillo dorado */
  --color-fondo: #f5f7fa;      /* gris muy claro */
  --texto-oscuro: #2d3436;     /* casi negro */
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Arial', sans-serif;
  background-color: var(--color-fondo);
  color: var(--texto-oscuro);
  line-height: 1.6;
}

/* Cabecera */
header {
  background-color: var(--color-primario);
  color: #fff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  position: sticky;
  top: 0;
  z-index: 1000;
}

header h1 {
  font-size: 1.8rem;
  font-family: 'Tahoma', sans-serif;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 1.5rem;
}

nav a {
  color: #fff;
  text-decoration: none;
  font-weight: 600;
}

nav a:hover {
  color: var(--color-acento);
}

/* Sección hero */
.hero {
  position: relative;
  width: 100%;
  height: 65vh;
  background-image: url('images/hero.png');
  background-size: cover;
  background-position: center;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to bottom right, rgba(44,62,80,0.6), rgba(231,76,60,0.6));
}

.hero-content {
  position: relative;
  text-align: center;
  color: #fff;
  padding: 2rem;
  max-width: 70%;
}

.hero-content h2 {
  font-size: 2.3rem;
  margin-bottom: 1rem;
  font-family: 'Tahoma', sans-serif;
}

.hero-content p {
  font-size: 1.2rem;
  margin-bottom: 1.5rem;
}

.btn {
  display: inline-block;
  background-color: var(--color-secundario);
  color: #fff;
  padding: 0.8rem 1.8rem;
  border: none;
  border-radius: 30px;
  font-size: 1rem;
  cursor: pointer;
  transition: background-color 0.3s ease;
  text-decoration: none;
}

.btn:hover {
  background-color: var(--color-acento);
}

/* Sección especialista */
.expert-section {
  padding: 4rem 2rem;
  text-align: center;
}

.expert-section h3 {
  font-size: 1.9rem;
  color: var(--color-primario);
  margin-bottom: 1rem;
  font-family: 'Tahoma', sans-serif;
}

.expert-section p {
  max-width: 900px;
  margin: 0 auto;
  font-size: 1rem;
}

/* Programas */
.programs-section {
  padding: 4rem 2rem;
  background-color: #fff;
}

.programs-section h3 {
  text-align: center;
  font-size: 1.9rem;
  color: var(--color-primario);
  margin-bottom: 2rem;
  font-family: 'Tahoma', sans-serif;
}

.program-card {
  background-color: var(--color-fondo);
  border: 1px solid #e0e0e0;
  border-radius: 10px;
  display: flex;
  overflow: hidden;
  box-shadow: 0 3px 6px rgba(0,0,0,0.1);
  transition: transform 0.2s ease;
}

.program-card:hover {
  transform: translateY(-5px);
}

.program-card img {
  width: 40%;
  object-fit: cover;
}

.program-card .content {
  padding: 1.2rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 60%;
}

.program-card h4 {
  font-size: 1.4rem;
  color: var(--color-secundario);
  margin-bottom: 0.5rem;
}

.program-card p {
  font-size: 0.95rem;
  flex-grow: 1;
}

.program-card .price {
  margin-top: 0.8rem;
  font-weight: bold;
  color: var(--color-acento);
  font-size: 1.1rem;
}

.programs-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* Sección testimonios */
.testimonials-section {
  padding: 4rem 2rem;
  background-color: var(--color-fondo);
}

.testimonials-section h3 {
  text-align: center;
  font-size: 1.9rem;
  color: var(--color-primario);
  margin-bottom: 2rem;
  font-family: 'Tahoma', sans-serif;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
}

.testimonial {
  background-color: #fff;
  border-radius: 10px;
  padding: 1.5rem;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.testimonial h4 {
  color: var(--color-secundario);
  margin-bottom: 0.4rem;
  font-size: 1.1rem;
}

.testimonial p {
  font-size: 0.9rem;
}

/* Formulario de testimonios */
.testimonial-form {
  margin-top: 3rem;
  text-align: center;
}

.testimonial-form form {
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.testimonial-form input,
.testimonial-form textarea {
  padding: 0.8rem;
  border: 1px solid #ccc;
  border-radius: 6px;
  font-size: 1rem;
}

.testimonial-form button {
  align-self: center;
  background-color: var(--color-primario);
  color: #fff;
  border: none;
  padding: 0.7rem 1.5rem;
  border-radius: 30px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.testimonial-form button:hover {
  background-color: var(--color-acento);
}

/* Modal para testimonios */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0,0,0,0.6);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 2000;
}

.modal-content {
  background-color: #fff;
  padding: 2rem;
  border-radius: 8px;
  text-align: center;
  max-width: 500px;
}

.modal-content button {
  margin-top: 1rem;
  background-color: var(--color-secundario);
  color: #fff;
  border: none;
  padding: 0.6rem 1.2rem;
  border-radius: 20px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.modal-content button:hover {
  background-color: var(--color-acento);
}

/* Formulario de contacto */
.contact-section {
  padding: 4rem 2rem;
  background-color: #fff;
}

.contact-section h3 {
  text-align: center;
  font-size: 1.9rem;
  color: var(--color-primario);
  margin-bottom: 2rem;
  font-family: 'Tahoma', sans-serif;
}

.contact-form {
  max-width: 700px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact-form input,
.contact-form textarea {
  padding: 0.9rem;
  border: 1px solid #ccc;
  border-radius: 6px;
  font-size: 1rem;
}

.contact-form .checkbox {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
}

.contact-form button {
  align-self: flex-start;
  background-color: var(--color-primario);
  color: #fff;
  padding: 0.7rem 1.6rem;
  border: none;
  border-radius: 30px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.contact-form button:hover {
  background-color: var(--color-acento);
}

/* Pie de página */
footer {
  background-color: var(--color-primario);
  color: #fff;
  padding: 2rem;
  text-align: center;
  margin-top: 2rem;
}

footer a {
  color: #fff;
  text-decoration: underline;
}

@media (max-width: 768px) {
  .hero-content h2 {
    font-size: 1.8rem;
  }
  .hero-content p {
    font-size: 1rem;
  }
  .program-card {
    flex-direction: column;
  }
  .program-card img,
  .program-card .content {
    width: 100%;
  }
  nav ul {
    gap: 1rem;
  }
}