/* Reset and base styles */
:root {
    --color-primary: #1e40af;
    --color-primary-dark: #1e3a8a;
    --color-secondary: #f97316;
    --color-secondary-dark: #ea580c;
    --color-text: #1f2937;
    --color-text-light: #6b7280;
    --color-background: #ffffff;
    --color-background-alt: #f3f4f6;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.5;
    color: var(--color-text);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
}

h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
}

h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    text-align: center;
}

h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    border-radius: 9999px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    background-color: var(--color-secondary-dark);
    transform: translateY(-1px);
}

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

.btn-secondary:hover {
    background-color: var(--color-primary-dark);
    transform: translateY(-1px);
}

.btn-lg {
    padding: 1rem 2rem;
    font-size: 1.125rem;
}

/* WhatsApp Button */
.whatsapp-button {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background-color: #25d366;
    color: white;
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    cursor: pointer;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    z-index: 100;
}

.whatsapp-button:hover {
    transform: scale(1.1);
    background-color: #128c7e;
}

/* Hero Section */
.hero {
    background: linear-gradient(to right, var(--color-primary-dark), var(--color-primary));
    color: white;
    position: relative;
    padding: 2rem 0 6rem;
    overflow: hidden;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: url('https://images.unsplash.com/photo-1451187580459-43490279c0fa?ixlib=rb-1.2.1&auto=format&fit=crop&w=1920&q=80');
    background-size: cover;
    background-position: center;
    opacity: 0.1;
}

.hero nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    z-index: 1;
}

.logo {
    height: 9rem;
    mix-blend-mode: screen;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.nav-links a:hover {
    color: var(--color-secondary);
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 1;
    padding: 4rem 0;
}

.hero-content p {
    font-size: 1.25rem;
    max-width: 600px;
    margin: 0 auto 2rem;
    opacity: 0.9;
}

/* Benefits Section */
.benefits {
    padding: 6rem 0;
    background-color: var(--color-background);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

@media (max-width: 1200px) {
    .benefits-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    .benefits-grid {
        grid-template-columns: 1fr;
    }
}

.benefit-card {
    padding: 2rem;
    background: white;
    border-radius: 1rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    transition: transform 0.3s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}

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

.icon-container {
    width: 4rem;
    height: 4rem;
    background-color: var(--color-primary);
    color: white;
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

/* Plans Section */
.plans {
    padding: 6rem 0;
    background-color: var(--color-background-alt);
}

.plans-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.plan-card {
    background: white;
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    position: relative;
}

.plan-card.featured {
    border: 2px solid var(--color-secondary);
    transform: scale(1.05);
}

.plan-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: var(--color-secondary);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-weight: 500;
}

.plan-header {
    text-align: center;
    margin-bottom: 2rem;
}

.plan-price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin: 1rem 0;
}

.plan-features {
    list-style: none;
    margin-bottom: 2rem;
}

.plan-features li {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.plan-features svg {
    color: var(--color-secondary);
    flex-shrink: 0;
}

/* About Section */
.about {
    padding: 6rem 0;
    background-color: var(--color-background);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 4rem;
    align-items: center;
}

.about-content p {
    color: var(--color-text-light);
    margin-bottom: 2rem;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.stat-card {
    background-color: var(--color-background-alt);
    padding: 1.5rem;
    border-radius: 1rem;
    text-align: center;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.about-image {
    position: relative;
}

.about-image img {
    width: 100%;
    border-radius: 1rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.certification-badge {
    position: absolute;
    bottom: -2rem;
    right: -2rem;
    background: var(--color-primary);
    color: white;
    padding: 1.5rem;
    border-radius: 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

/* CTA Section */
.cta {
    padding: 6rem 0;
    background: linear-gradient(to right, var(--color-primary-dark), var(--color-primary));
    color: white;
    text-align: center;
}

.cta h2 {
    margin-bottom: 1.5rem;
}

.cta p {
    max-width: 600px;
    margin: 0 auto 2rem;
    opacity: 0.9;
}

/* Footer */
footer {
    background-color: #111827;
    color: white;
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand img {
    height: 3rem;
    margin-bottom: 1rem;
}

.footer-brand p {
    color: #9ca3af;
}

.footer-contact h3,
.footer-links h3,
.footer-social h3 {
    margin-bottom: 1.5rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.contact-info div {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links a {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.3s ease;
    display: block;
    margin-bottom: 0.75rem;
}

.footer-links a:hover {
    color: white;
}

.social-icons {
    display: flex;
    gap: 1rem;
}

.social-icons a {
    color: white;
    transition: color 0.3s ease;
}

.social-icons a:hover {
    color: var(--color-secondary);
}

.footer-bottom {
    border-top: 1px solid #374151;
    padding-top: 2rem;
    text-align: center;
    color: #9ca3af;
}

.footer-bottom a {
    color: var(--color-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-bottom a:hover {
    color: white;
}

/* Responsive Design */
@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    .nav-links {
        display: none;
    }

    .hero {
        padding: 1rem 0 4rem;
    }

    .hero nav {
        justify-content: center;
    }

    .logo {
        height: 12rem;
        margin: 0 auto;
    }

    .plan-card.featured {
        transform: none;
    }

    .certification-badge {
        right: 0;
        bottom: -1rem;
        padding: 1rem;
    }
}

/* Smooth Scroll */
html {
    scroll-behavior: smooth;
}