:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --dark-blue: #1e293b;
    --light-gray: #f8fafc;
    --text-color: #475569;
    --whatsapp-green: #25D366;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Roboto', sans-serif;
    line-height: 1.7;
    color: var(--text-color);
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: 'Montserrat', sans-serif;
    color: var(--dark-blue);
}

 
/* --- Animations --- */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
    0%, 100% { transform: scale(1); box-shadow: 0 10px 30px rgba(37, 211, 102, 0.3); }
    50% { transform: scale(1.05); box-shadow: 0 15px 40px rgba(37, 211, 102, 0.5); }
}

.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

/* --- General Classes --- */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 6rem 0;
}

.section-title {
    font-size: 2.8rem;
    font-weight: 900;
    text-align: center;
    margin-bottom: 1rem;
    line-height: 1.3;
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto 4rem auto;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* --- Header --- */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(10px);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.whatsapp-btn {
    background: var(--whatsapp-green);
    color: white;
    padding: 0.7rem 1.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-family: 'Montserrat';
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.whatsapp-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
}

/* --- Hero Section --- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    color: white;
    text-align: center;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url('joven.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    filter: brightness(0.6);
    z-index: -2;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.7), rgba(118, 75, 162, 0.7));
    z-index: -1;
}

.hero-content {
    animation: fadeIn 1s ease-out forwards;
}

.hero-title {
    font-size: 4rem;
    font-weight: 900;
    margin-bottom: 1rem;
    line-height: 1.2;
    color: white;
    text-shadow: 0 4px 15px rgba(0,0,0,0.3);
}

.hero-subtitle {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}
 
.hero-benefits {
    list-style: none;
    display: inline-flex;
    gap: 2rem;
    justify-content: center;
    margin-bottom: 2.5rem;
    flex-wrap: wrap;
}
.hero-benefits li {
    background: rgba(255,255,255,0.1);
    padding: 0.5rem 1rem;
    border-radius: 10px;
    font-weight: 500;
}

.main-cta-btn {
    background: var(--whatsapp-green);
    color: white;
    padding: 1.2rem 3rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.2rem;
    font-family: 'Montserrat';
    transition: all 0.3s ease;
    display: inline-block;
    animation: pulse 2.5s ease-in-out infinite;
}
 
.main-cta-btn:hover {
    transform: scale(1.05) translateY(-3px);
}

/* --- Problem Section --- */
.problem-section {
    background-color: var(--light-gray);
}
.problem-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
}
.problem-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    border: 1px solid #e2e8f0;
}
.problem-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}
.problem-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

/* --- Program Section --- */
.program-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}
.month-card {
    background: white;
    border-radius: 20px;
    padding: 2.5rem;
    border-top: 5px solid;
    border-image: linear-gradient(90deg, var(--primary-color), var(--secondary-color)) 1;
    box-shadow: 0 15px 40px rgba(0,0,0,0.08);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.month-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 25px 50px rgba(0,0,0,0.12);
}
.month-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
}
.month-description {
    margin-bottom: 2rem;
}
.topics-list {
    list-style: none;
}
.topics-list li {
    padding: 0.8rem 0;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}
.topics-list li i {
    color: var(--secondary-color);
    margin-top: 5px;
}
.topic-title {
    font-weight: 700;
    color: var(--dark-blue);
}
.topic-description {
    font-size: 0.9rem;
}
 
/* --- Instructor Section --- */
.instructor {
    background: var(--dark-blue);
    color: white;
}
.instructor-container {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    align-items: center;
}
.instructor-image-wrapper {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    padding: 10px;
    margin: 0 auto;
}
.instructor-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    border: 5px solid var(--dark-blue);
}
.instructor-info h2 {
    font-size: 2.5rem;
    color: white;
    margin-bottom: 1rem;
}
.instructor-info .subtitle {
    font-size: 1.2rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    font-family: 'Montserrat';
    font-weight: 700;
}
.instructor-info p {
    opacity: 0.9;
    margin-bottom: 1rem;
}
.credentials {
    background: rgba(255,255,255,0.05);
    padding: 1.5rem;
    border-radius: 15px;
    margin-top: 2rem;
    font-size: 0.9rem;
}

/* --- Benefits Section --- */
.benefits {
     background-color: var(--light-gray);
}
.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}
.benefit-card {
    background: white;
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05);
    transition: transform 0.3s ease;
}
.benefit-card:hover {
    transform: translateY(-10px);
}
.benefit-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}
.benefit-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

/* --- Testimonials Section --- */
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}
.testimonial-card {
    background: var(--light-gray);
    padding: 2rem;
    border-radius: 15px;
    border-left: 5px solid var(--primary-color);
}
.testimonial-text {
    font-style: italic;
    margin-bottom: 1rem;
}
.testimonial-author {
    font-weight: 700;
    color: var(--dark-blue);
}
.testimonial-stars {
    color: #FFC107;
    margin-bottom: 1rem;
}

/* --- Pricing Section --- */
.pricing-card {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  padding: 3rem;
  border-radius: 25px;
  box-shadow: 0 20px 50px rgba(102, 126, 234, 0.4);
  text-align: center;
  max-width: 500px;
  margin: 0 auto;
}
.price {
    font-size: 3.5rem;
    font-weight: 900;
    font-family: 'Montserrat';
    margin-bottom: 0.5rem;
}
.price-period {
    font-size: 1.2rem;
    opacity: 0.8;
    margin-bottom: 1.5rem;
}
.pricing-features {
    list-style: none;
    margin: 2rem 0;
    text-align: left;
    display: inline-block;
}
.pricing-features li {
    padding: 0.5rem 0;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    gap: 0.8rem;
}
.pricing-features li i {
    color: #4ade80;
}
.bonus-box {
    background: rgba(255,255,255,0.1);
    padding: 1rem;
    border-radius: 10px;
    margin-top: 2rem;
    font-weight: 500;
}

/* --- FAQ Section --- */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}
.faq-item {
    background: white;
    border-radius: 10px;
    margin-bottom: 1rem;
    box-shadow: 0 5px 20px rgba(0,0,0,0.05);
}
.faq-question {
    width: 100%;
    background: none;
    border: none;
    text-align: left;
    padding: 1.5rem;
    font-size: 1.1rem;
    font-weight: 700;
    font-family: 'Montserrat';
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--dark-blue);
}
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    padding: 0 1.5rem;
}
.faq-answer p {
    padding-bottom: 1.5rem;
}
.faq-item.active .faq-answer {
    max-height: 200px;
}
 
/* --- CTA Section --- */
.cta {
    background: linear-gradient(135deg, var(--dark-blue), #334155);
    color: white;
    text-align: center;
}
.cta .section-title, .cta .section-subtitle {
    color: white;
}
.cta-subtitle {
    margin-bottom: 2.5rem;
}
.cta p {
    margin-top: 1.5rem;
    opacity: 0.8;
}
 
/* --- Footer --- */
.footer {
    background: #1e293b;
    color: white;
    text-align: center;
    padding: 3rem 0;
}
.footer .logo { color: white; margin-bottom: 1rem; }
.footer p { opacity: 0.7; }
.footer a { color: var(--whatsapp-green); text-decoration: none; font-weight: bold; }


/* --- Responsive Design --- */
@media (max-width: 992px) {
    .program-grid {
        grid-template-columns: 1fr;
    }
    .instructor-container {
        grid-template-columns: 1fr;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .section-title { font-size: 2.2rem; }
    .hero-title { font-size: 3rem; }
    .hero-benefits { flex-direction: column; gap: 0.5rem; align-items: center; }
}