/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #c41e3a;
    --primary-dark: #a01629;
    --secondary-color: #1a365d;
    --text-dark: #2d3748;
    --text-light: #4a5568;
    --bg-light: #f7fafc;
    --bg-white: #ffffff;
    --border-color: #e2e8f0;
    --success-color: #38a169;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
    font-size: 16px;
}

/* Container */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1 {
    font-size: 2rem;
    line-height: 1.2;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

h2 {
    font-size: 1.75rem;
    line-height: 1.3;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.25rem;
    line-height: 1.4;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 0.75rem;
}

p {
    margin-bottom: 1rem;
    color: var(--text-light);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.875rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    text-align: center;
    justify-content: center;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: white;
}

.btn-large {
    padding: 1.125rem 2rem;
    font-size: 1.125rem;
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: white;
    padding: 4rem 0;
    text-align: center;
}

.hero h1 {
    color: white;
    font-size: 2rem;
    margin-bottom: 1rem;
}

.hero-subtitle {
    font-size: 1.125rem;
    margin-bottom: 2rem;
    color: rgba(255, 255, 255, 0.95);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.hero-buttons {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    align-items: center;
}

/* Problem Solution Section */
.problem-solution {
    padding: 4rem 0;
    background-color: var(--bg-light);
}

.problem-solution h2 {
    text-align: center;
    margin-bottom: 2rem;
}

.problems {
    display: grid;
    gap: 1.5rem;
    margin-bottom: 3rem;
}

.problem-card {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.problem-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.problem-card h3 {
    color: var(--text-dark);
    margin-bottom: 0.75rem;
}

.solution {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    border-left: 4px solid var(--primary-color);
}

.solution h2 {
    text-align: left;
    color: var(--primary-color);
}

.solution-list {
    list-style: none;
    padding: 0;
}

.solution-list li {
    padding: 0.5rem 0;
    color: var(--text-light);
    font-size: 1.05rem;
}

/* Target Audience Section */
.target-audience {
    padding: 4rem 0;
    background-color: var(--bg-white);
}

.target-audience h2 {
    text-align: center;
    margin-bottom: 2.5rem;
}

.audience-grid {
    display: grid;
    gap: 1.5rem;
}

.audience-card {
    background: var(--bg-light);
    padding: 1.75rem;
    border-radius: 12px;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.audience-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
}

.audience-card .icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

/* About Section */
.about {
    padding: 4rem 0;
    background-color: var(--bg-light);
}

.about h2 {
    text-align: center;
    margin-bottom: 2rem;
}

.about-content {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}

.about-text h3 {
    color: var(--primary-color);
    margin-bottom: 1.5rem;
}

.teaching-languages {
    margin-top: 2rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
}

.lang-badge {
    display: inline-block;
    padding: 0.5rem 1rem;
    background-color: var(--bg-light);
    border-radius: 20px;
    font-size: 0.95rem;
    color: var(--text-dark);
}

/* Pricing Section */
.pricing {
    padding: 4rem 0;
    background-color: var(--bg-white);
}

.pricing h2 {
    text-align: center;
    margin-bottom: 1rem;
}

.pricing-intro {
    text-align: center;
    font-size: 1.125rem;
    margin-bottom: 2.5rem;
    color: var(--text-light);
}

.pricing-grid {
    display: grid;
    gap: 2rem;
    margin-bottom: 2rem;
}

.pricing-card {
    background: white;
    border: 2px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.pricing-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.pricing-header {
    background: linear-gradient(135deg, var(--secondary-color), #2d4a72);
    color: white;
    padding: 1.5rem;
    text-align: center;
}

.pricing-header h3 {
    color: white;
    margin-bottom: 0.25rem;
}

.pricing-subtitle {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.95rem;
}

.pricing-options {
    padding: 1.5rem;
    background-color: var(--bg-light);
}

.price-item {
    background: white;
    padding: 1rem;
    margin-bottom: 0.75rem;
    border-radius: 8px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    border: 1px solid var(--border-color);
}

.price-item.featured {
    border: 2px solid var(--primary-color);
    background: linear-gradient(to right, #fff, #fff5f7);
}

.price-label {
    font-weight: 600;
    color: var(--text-dark);
}

.price-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

.price-save {
    width: 100%;
    text-align: center;
    margin-top: 0.5rem;
    font-size: 0.85rem;
    color: var(--success-color);
    font-weight: 600;
}

.pricing-features {
    list-style: none;
    padding: 1.5rem;
}

.pricing-features li {
    padding: 0.5rem 0;
    color: var(--text-light);
    border-bottom: 1px solid var(--border-color);
}

.pricing-features li:last-child {
    border-bottom: none;
}

.pricing-card .btn {
    margin: 0 1.5rem 1.5rem;
    width: calc(100% - 3rem);
}

.pricing-note {
    background: var(--bg-light);
    padding: 1.5rem;
    border-radius: 8px;
    text-align: center;
    margin-top: 2rem;
}

/* Consultation Section */
.consultation {
    padding: 4rem 0;
    background-color: var(--bg-light);
}

.consultation h2 {
    text-align: center;
    margin-bottom: 2rem;
    color: var(--primary-color);
}

.consultation-content {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
}

.consultation-text ul {
    list-style: none;
    padding-left: 0;
    margin-bottom: 1.5rem;
}

.consultation-text ul li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-light);
}

.consultation-text ul li:before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

.consultation-cta-text {
    font-weight: 600;
    color: var(--text-dark);
    font-size: 1.125rem;
    margin: 2rem 0;
    text-align: center;
}

.consultation .btn {
    display: flex;
    margin: 0 auto;
    max-width: 400px;
}

/* How It Works Section */
.how-it-works {
    padding: 4rem 0;
    background-color: var(--bg-white);
}

.how-it-works h2 {
    text-align: center;
    margin-bottom: 3rem;
}

.steps {
    display: grid;
    gap: 2rem;
}

.step {
    text-align: center;
    padding: 1.5rem;
    background: var(--bg-light);
    border-radius: 12px;
    transition: transform 0.3s ease;
}

.step:hover {
    transform: translateY(-4px);
}

.step-number {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1rem;
}

/* FAQ Section */
.faq {
    padding: 4rem 0;
    background-color: var(--bg-light);
}

.faq h2 {
    text-align: center;
    margin-bottom: 2.5rem;
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: white;
    margin-bottom: 1rem;
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.faq-question {
    padding: 1.25rem 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.3s ease;
}

.faq-question:hover {
    background-color: var(--bg-light);
}

.faq-question h3 {
    margin: 0;
    font-size: 1.05rem;
    color: var(--text-dark);
}

.faq-toggle {
    font-size: 1.5rem;
    font-weight: 300;
    color: var(--primary-color);
    transition: transform 0.3s ease;
}

.faq-item.active .faq-toggle {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 1.5rem;
}

.faq-item.active .faq-answer {
    max-height: 500px;
    padding: 0 1.5rem 1.25rem;
}

/* Final CTA Section */
.final-cta {
    padding: 4rem 0;
    background: linear-gradient(135deg, var(--secondary-color), #2d4a72);
    color: white;
    text-align: center;
}

.final-cta h2 {
    color: white;
    margin-bottom: 1rem;
}

.final-cta p {
    color: rgba(255, 255, 255, 0.95);
    font-size: 1.125rem;
    max-width: 700px;
    margin: 0 auto 1rem;
}

.cta-subtitle {
    font-weight: 600;
    font-size: 1.25rem !important;
    margin-bottom: 2rem !important;
}

.final-cta .btn {
    display: inline-flex;
    margin-top: 1rem;
}

/* Footer */
.footer {
    background-color: var(--text-dark);
    color: white;
    padding: 2rem 0;
    text-align: center;
}

.footer p {
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
}

/* Floating WhatsApp Button */
.whatsapp-float {
    position: fixed;
    bottom: 20px;
    right: 20px;
    width: 60px;
    height: 60px;
    background-color: #25d366;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 1000;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-decoration: none;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

/* Tablet Styles */
@media (min-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    .hero {
        padding: 5rem 0;
    }

    .hero h1 {
        font-size: 2.75rem;
    }

    .hero-buttons {
        flex-direction: row;
        justify-content: center;
    }

    .problems {
        grid-template-columns: repeat(2, 1fr);
    }

    .audience-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .pricing-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .steps {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Laptop Styles */
@media (min-width: 1024px) {
    h1 {
        font-size: 3rem;
    }

    h2 {
        font-size: 2.25rem;
    }

    .hero {
        padding: 6rem 0;
    }

    .hero h1 {
        font-size: 3.25rem;
    }

    .problems {
        grid-template-columns: repeat(3, 1fr);
    }

    .audience-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .steps {
        grid-template-columns: repeat(4, 1fr);
    }

    .about-content {
        padding: 3rem;
    }

    .consultation-content {
        padding: 3rem;
    }
}

/* Desktop Styles */
@media (min-width: 1280px) {
    .container {
        padding: 0 40px;
    }

    .hero {
        padding: 7rem 0;
    }

    .hero h1 {
        font-size: 3.5rem;
    }

    section {
        padding: 5rem 0;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Print Styles */
@media print {
    .whatsapp-float,
    .hero-buttons,
    .btn {
        display: none;
    }
}