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

:root {
    --primary-color: #0EA5E9;
    --primary-dark: #0284C7;
    --secondary-color: #F97316;
    --text-dark: #1F2937;
    --text-light: #6B7280;
    --bg-light: #F9FAFB;
    --bg-white: #FFFFFF;
    --border-color: #E5E7EB;
    --success-color: #10B981;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', sans-serif;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    color: var(--text-dark);
    background-color: var(--bg-white);
    line-height: 1.6;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

/* Header & Navigation */
.header {
    background-color: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.navbar-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
}

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

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-xl);
}

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

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

/* Hero Section */
.hero {
    position: relative;
    height: 600px;
    display: flex;
    align-items: center;
    overflow: hidden;
    background-color: var(--bg-light);
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-size: cover;
    background-position: center;
    z-index: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.85) 0%, rgba(255, 255, 255, 0.7) 100%);
    z-index: 2;
}

.hero-content {
    position: relative;
    z-index: 3;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.hero-text h1 {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--text-dark);
}

.hero-subheading {
    font-size: 1.25rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-lg);
}

.hero-image img {
    width: 100%;
    height: auto;
    object-fit: contain;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

/* Buttons */
.btn {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: 0.5rem;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    box-shadow: 0 2px 8px rgba(14, 165, 233, 0.3);
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    box-shadow: 0 4px 12px rgba(14, 165, 233, 0.4);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: white;
    box-shadow: 0 2px 8px rgba(249, 115, 22, 0.3);
}

.btn-secondary:hover {
    background-color: #EA580C;
    box-shadow: 0 4px 12px rgba(249, 115, 22, 0.4);
    transform: translateY(-2px);
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-2xl);
    font-size: 1.1rem;
}

/* Como Funciona Section */
.como-funciona {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-light);
}

.como-funciona h2,
.features h2,
.statistics h2,
.cta-section h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-2xl);
    text-align: center;
    color: var(--text-dark);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
}

.step {
    background-color: var(--bg-white);
    padding: var(--spacing-xl);
    border-radius: 1rem;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.step:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    transform: translateY(-4px);
}

.step-number {
    display: inline-block;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
}

.step img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 0.5rem;
    margin-bottom: var(--spacing-md);
}

.step h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.step p {
    color: var(--text-light);
    font-size: 0.95rem;
}

/* Features Section */
.features {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.feature-card {
    padding: var(--spacing-xl);
    border-radius: 1rem;
    border: 1px solid var(--border-color);
    transition: all 0.3s ease;
    background-color: var(--bg-light);
}

.feature-card:hover {
    border-color: var(--primary-color);
    box-shadow: 0 4px 16px rgba(14, 165, 233, 0.1);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-dark);
}

.feature-card p {
    color: var(--text-light);
    font-size: 0.95rem;
    line-height: 1.5;
}

/* Demo Section */
.demo-section {
    padding: var(--spacing-2xl) 0;
    background: linear-gradient(135deg, #F0F9FF 0%, #E0F2FE 100%);
}

.demo-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    align-items: center;
}

.demo-text h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
    text-align: left;
}

.demo-tagline {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

.demo-description {
    font-size: 1rem;
    color: var(--text-light);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.demo-example {
    background-color: var(--bg-white);
    padding: var(--spacing-md);
    border-radius: 0.75rem;
    border-left: 4px solid var(--primary-color);
    margin-bottom: var(--spacing-lg);
    font-style: italic;
}

.demo-image img {
    width: 100%;
    height: auto;
    border-radius: 1rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

/* Statistics Section */
.statistics {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-light);
}

.statistics h2 {
    margin-bottom: var(--spacing-2xl);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-xl);
}

.stat-card {
    background-color: var(--bg-white);
    padding: var(--spacing-2xl);
    border-radius: 1rem;
    text-align: center;
    border: 1px solid var(--border-color);
}

.stat-card h3 {
    font-size: 2.5rem;
    color: var(--primary-color);
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.stat-card p {
    color: var(--text-light);
    font-size: 1rem;
}

/* CTA Section */
.cta-section {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg-white);
}

.cta-subtitle {
    text-align: center;
    color: var(--text-light);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-2xl);
}

.demo-form {
    max-width: 600px;
    margin: 0 auto;
    background-color: var(--bg-light);
    padding: var(--spacing-2xl);
    border-radius: 1rem;
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
    color: var(--text-dark);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    font-family: var(--font-family);
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

.form-group button {
    width: 100%;
}

.success-message {
    max-width: 600px;
    margin: 0 auto;
    background-color: rgba(16, 185, 129, 0.1);
    border: 1px solid var(--success-color);
    border-radius: 1rem;
    padding: var(--spacing-2xl);
    text-align: center;
}

.success-message h3 {
    color: var(--success-color);
    margin-bottom: var(--spacing-md);
}

.success-message p {
    color: var(--text-dark);
}

/* Footer */
.footer {
    background-color: var(--text-dark);
    color: white;
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
    margin-top: var(--spacing-2xl);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-section h4 {
    margin-bottom: var(--spacing-md);
    color: white;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.95rem;
}

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

.footer-section li {
    margin-bottom: var(--spacing-sm);
}

.footer-section a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section a:hover {
    color: var(--primary-color);
}

.social-links {
    display: flex;
    gap: var(--spacing-md);
}

.social-links a {
    display: inline-block;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

/* WhatsApp Floating Button */
.whatsapp-btn {
    position: fixed;
    bottom: var(--spacing-lg);
    right: var(--spacing-lg);
    width: 60px;
    height: 60px;
    background-color: #25D366;
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    text-decoration: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: all 0.3s ease;
    z-index: 999;
}

.whatsapp-btn:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.25);
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }

    .nav-links {
        gap: var(--spacing-md);
        font-size: 0.9rem;
    }

    .hero {
        height: auto;
        min-height: 500px;
        padding: var(--spacing-2xl) 0;
    }

    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .hero-text h1 {
        font-size: 2rem;
    }

    .hero-subheading {
        font-size: 1rem;
    }

    .como-funciona h2,
    .features h2,
    .statistics h2,
    .cta-section h2 {
        font-size: 2rem;
    }

    .steps-grid,
    .features-grid,
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .demo-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .demo-text h2 {
        font-size: 1.5rem;
        text-align: center;
    }

    .demo-form {
        padding: var(--spacing-lg);
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    .footer-section {
        text-align: center;
    }

    .social-links {
        justify-content: center;
    }

    .whatsapp-btn {
        width: 50px;
        height: 50px;
        font-size: 1.25rem;
        bottom: var(--spacing-md);
        right: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 1.5rem;
    }

    .btn {
        padding: var(--spacing-xs) var(--spacing-md);
        font-size: 0.9rem;
    }

    .btn-large {
        padding: var(--spacing-sm) var(--spacing-lg);
    }

    .step-number {
        width: 45px;
        height: 45px;
    }

    .stat-card h3 {
        font-size: 2rem;
    }
}