/* Variables */
:root {
    --white: #FFFFFF;
    --light-blue: #D5EFFB;
    --medium-blue: #A8D8F0;
    --navy: #0F2238;
    --dark-gray: #111;
    --gray: #666;
    --font-family: 'Inter', sans-serif;
    --border-radius: 12px;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Typography */
h1 {
    font-size: 2.5rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
}

h2 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 2rem;
    text-align: center;
}

h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

p {
    font-size: 1rem;
    margin-bottom: 1rem;
}

/* Buttons */
.btn-primary, .btn-secondary {
    display: inline-block;
    padding: 12px 24px;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

.btn-primary:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow);
}

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

.btn-secondary:hover {
    background-color: var(--navy);
    color: var(--white);
    transform: scale(1.02);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: var(--white);
    box-shadow: var(--shadow);
    z-index: 1000;
    padding: 1rem 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--navy);
}

.logo-img {
    height: 40px;
    width: auto;
}

.logo-text {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--navy);
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

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

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

.nav-actions {
    display: flex;
    align-items: center;
}

.whatsapp-btn {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background-color: #25D366;
    color: white;
    padding: 10px 16px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.whatsapp-btn:hover {
    background-color: #128C7E;
    transform: scale(1.05);
}

.whatsapp-btn svg {
    width: 18px;
    height: 18px;
}

.btn-text {
    display: inline;
}

.btn-mobile {
    display: none;
}

/* Hero Section */
.hero {
    padding: 160px 0 80px;
    background: linear-gradient(135deg, var(--white) 0%, var(--light-blue) 100%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content h1 {
    color: var(--navy);
}

.emphasis {
    font-weight: 600;
    color: var(--navy);
    font-size: 1.1rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin: 2rem 0;
}

.trust {
    font-size: 0.9rem;
    color: var(--gray);
    margin-top: 2rem;
}

.hero-illustration {
    position: relative;
}

.hero-image {
    width: 100%;
    height: auto;
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.1));
    animation: float 3s ease-in-out infinite;
}

.hero-image-mobile {
    display: none;
}

@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
}

/* Benefits Section */
.benefits {
    padding: 80px 0;
    background-color: var(--white);
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.benefit-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: center;
    transition: var(--transition);
}

.benefit-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.15);
}

/* How It Works Section */
.how-it-works {
    padding: 80px 0;
    background-color: var(--light-blue);
}

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

.step {
    text-align: center;
    padding: 2rem;
}

.step-icon {
    width: 60px;
    height: 60px;
    background-color: var(--navy);
    color: var(--white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 1rem;
}

/* Simulator Section */
.simulator {
    padding: 80px 0;
    background-color: var(--white);
}

.simulator-form {
    max-width: 500px;
    margin: 0 auto;
    background-color: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--navy);
}

.form-group input {
    width: 100%;
    padding: 12px;
    border: 2px solid var(--light-blue);
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus {
    outline: none;
    border-color: var(--navy);
    box-shadow: 0 0 0 3px rgba(15, 34, 56, 0.1);
}

#renda-slider {
    margin-bottom: 1rem;
}

.result-card {
    max-width: 500px;
    margin: 2rem auto;
    padding: 2rem;
    background-color: var(--light-blue);
    border-radius: var(--border-radius);
    text-align: center;
}

.skeleton {
    height: 20px;
    background: linear-gradient(90deg, var(--medium-blue) 25%, var(--light-blue) 50%, var(--medium-blue) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
    border-radius: 4px;
    margin-bottom: 1rem;
}

@keyframes loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

.nota-legal {
    text-align: center;
    font-size: 0.8rem;
    color: var(--gray);
    margin-top: 1rem;
}

/* Testimonials Section */
.testimonials {
    padding: 80px 0;
    background-color: var(--light-blue);
}

.testimonials-carousel {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    overflow: hidden;
}

.testimonial {
    display: none;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.testimonial.active {
    display: block;
    opacity: 1;
}

.testimonial-content {
    display: flex;
    align-items: center;
    gap: 2rem;
    background-color: var(--white);
    padding: 2rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin: 0 auto;
    max-width: 700px;
}

.testimonial-avatar {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--navy);
    flex-shrink: 0;
}

.testimonial-text {
    flex: 1;
}

.testimonial-text p {
    font-size: 1.1rem;
    line-height: 1.6;
    margin-bottom: 1rem;
    color: var(--dark-gray);
    font-style: italic;
}

.testimonial-text h4 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--navy);
    margin-bottom: 0.5rem;
}

.stars {
    color: #ffd700;
    font-size: 1.2rem;
    letter-spacing: 2px;
}

.testimonial-indicators {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 2rem;
}

.indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--medium-blue);
    cursor: pointer;
    transition: all 0.3s ease;
}

.indicator.active {
    background-color: var(--navy);
    transform: scale(1.2);
}

.indicator:hover {
    background-color: var(--navy);
}

/* FAQ Section */
.faq {
    padding: 80px 0;
    background-color: var(--white);
}

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

.accordion-item {
    margin-bottom: 1rem;
    border: 1px solid var(--light-blue);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.accordion-header {
    width: 100%;
    padding: 1.5rem;
    background-color: var(--white);
    border: none;
    text-align: left;
    font-size: 1rem;
    font-weight: 600;
    color: var(--navy);
    cursor: pointer;
    transition: var(--transition);
}

.accordion-header:hover {
    background-color: var(--light-blue);
}

.accordion-content {
    padding: 0 1.5rem;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.accordion-content.active {
    max-height: 200px;
    padding: 1.5rem;
}

/* Footer */
.footer {
    padding: 40px 0;
    background-color: var(--navy);
    color: var(--white);
    text-align: center;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 1rem;
}

.footer-links a {
    color: var(--white);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--light-blue);
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-links {
        gap: 1rem;
    }

    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

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

    .footer-links {
        flex-direction: column;
        gap: 1rem;
    }

    /* Testimonials mobile styles */
    .testimonial-content {
        flex-direction: column;
        text-align: center;
        gap: 1.5rem;
    }

    .testimonial-avatar {
        width: 70px;
        height: 70px;
        margin: 0 auto;
    }

    .testimonial-text p {
        font-size: 1rem;
    }

    .testimonial-text h4 {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }
    
    h1 {
        font-size: 1.8rem;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .benefits,
    .how-it-works,
    .simulator,
    .testimonials,
    .faq {
        padding: 60px 0;
    }
}

/* Focus States for Accessibility */
button:focus,
input:focus,
a:focus {
    outline: 2px solid var(--navy);
    outline-offset: 2px;
}

/* CTA Section */
.cta-section {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--navy) 0%, var(--medium-blue) 100%);
    color: var(--white);
}

.cta-section .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.cta-content h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--white);
}

.cta-content p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    color: var(--white);
}

.cta-buttons {
    display: flex;
    gap: 1rem;
}

.cta-image {
    text-align: center;
}

.cta-img {
    width: 100%;
    max-width: 300px;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
}

/* Enhanced Mobile Responsive */
@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
        gap: 1rem;
    }

    .logo {
        font-size: 1.2rem;
    }

    .logo-img {
        height: 35px;
    }

    .logo-text {
        font-size: 1rem;
    }

    .nav-links {
        gap: 1rem;
    }

    .btn-text {
        display: none;
    }

    .btn-mobile {
        display: inline;
    }

    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .hero-image {
        display: none;
    }

    .hero-image-mobile {
        display: block;
        width: 100%;
        height: auto;
        filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.1));
        animation: float 3s ease-in-out infinite;
    }

    .cta-section .container {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 2rem;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

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

    .footer-links {
        flex-direction: column;
        gap: 1rem;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 15px;
    }

    h1 {
        font-size: 1.8rem;
    }

    .hero {
        padding: 140px 0 60px;
    }

    .benefits,
    .how-it-works,
    .simulator,
    .testimonials,
    .faq,
    .cta-section {
        padding: 60px 0;
    }

    .cta-content h2 {
        font-size: 2rem;
    }

    .cta-img {
        max-width: 250px;
    }

    .whatsapp-float {
        bottom: 15px;
        right: 15px;
        width: 55px;
        height: 55px;
    }

    .whatsapp-float svg {
        width: 24px;
        height: 24px;
    }
}

/* Focus States for Accessibility */
button:focus,
input:focus,
a:focus {
    outline: 2px solid var(--navy);
    outline-offset: 2px;
}

/* WhatsApp Floating 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;
    text-decoration: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    z-index: 1000;
    animation: pulse 2s infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

.whatsapp-float svg {
    width: 28px;
    height: 28px;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

/* High Contrast Mode Support */
@media (prefers-contrast: high) {
    :root {
        --light-blue: #B3E5FC;
        --medium-blue: #81D4FA;
    }
}