/* Base Styles - Tech Elegance Palette */
:root {
    /* Cores Primárias */
    --primary-blue: #1e3a8a;
    --primary-green: #059669;
    --primary-gray: #374151;
    
    /* Cores Secundárias */
    --secondary-blue-light: #dbeafe;
    --secondary-green-light: #d1fae5;
    --secondary-gray-light: #f8fafc;
    --secondary-white: #ffffff;
    
    /* Cores de Texto */
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --text-light: #ffffff;
    
    /* Gradientes */
    --gradient-primary: linear-gradient(135deg, #1e3a8a 0%, #059669 100%);
    --gradient-secondary: linear-gradient(135deg, #374151 0%, #1e3a8a 100%);
    --gradient-soft: linear-gradient(135deg, #dbeafe 0%, #d1fae5 100%);
    --gradient-hero: linear-gradient(135deg, #f8fafc 0%, #dbeafe 50%, #d1fae5 100%);
    
    /* WhatsApp Button */
    --whatsapp-primary: #059669;
    --whatsapp-hover: #047857;
    --whatsapp-shadow: rgba(5, 150, 105, 0.3);
    
    /* Sombras */
    --shadow-sm: 0 2px 4px rgba(31, 41, 55, 0.1);
    --shadow-md: 0 4px 8px rgba(31, 41, 55, 0.12);
    --shadow-lg: 0 10px 20px rgba(31, 41, 55, 0.15);
    --shadow-xl: 0 20px 40px rgba(31, 41, 55, 0.2);
    
    /* Border Radius */
    --border-radius-sm: 6px;
    --border-radius-md: 12px;
    --border-radius-lg: 20px;
    --border-radius-xl: 24px;
    
    /* Transições */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html {
    font-size: 62.5%; /* 10px = 1rem */
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Poppins', sans-serif;
    font-size: 1.6rem;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--secondary-white);
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

a {
    text-decoration: none;
    color: var(--primary-blue);
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--primary-green);
}

ul {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 8rem 0;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 2rem;
    color: var(--text-primary);
}

h1 {
    font-size: 4.8rem;
    font-weight: 800;
}

h2 {
    font-size: 3.6rem;
    font-weight: 700;
}

h3 {
    font-size: 2.4rem;
    font-weight: 600;
}

h4 {
    font-size: 2rem;
    font-weight: 600;
}

p {
    margin-bottom: 1.6rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1.4rem 2.8rem;
    border-radius: var(--border-radius-md);
    font-weight: 600;
    font-size: 1.6rem;
    text-decoration: none;
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left var(--transition-slow);
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--text-light);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary {
    background: var(--secondary-white);
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
    box-shadow: var(--shadow-sm);
}

.btn-secondary:hover {
    background: var(--primary-blue);
    color: var(--text-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Header */
.header {
    background: var(--secondary-white);
    box-shadow: var(--shadow-sm);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    background: rgba(248, 250, 252, 0.95);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem 0;
}

.logo img {
    height: 5rem;
    width: auto;
}

.nav-menu ul {
    display: flex;
    gap: 3rem;
}

.nav-menu a {
    font-weight: 500;
    color: var(--text-primary);
    transition: color var(--transition-fast);
    position: relative;
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: width var(--transition-normal);
}

.nav-menu a:hover::after {
    width: 100%;
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    transition: all var(--transition-normal);
}

/* Hero Section */
.hero {
    background: var(--gradient-hero);
    padding: 12rem 0 8rem;
    margin-top: 8rem;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23e5e7eb" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-text h1 {
    font-size: 5.2rem;
    margin-bottom: 2.4rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text h1 span {
    color: var(--primary-green);
    -webkit-text-fill-color: var(--primary-green);
}

.hero-text p {
    font-size: 1.8rem;
    margin-bottom: 3.2rem;
    color: var(--text-secondary);
}

.hero-buttons {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.hero-image {
    position: relative;
}

.hero-image img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-xl);
    transform: perspective(1000px) rotateY(-5deg) rotateX(5deg);
    transition: transform var(--transition-slow);
}

.hero-image:hover img {
    transform: perspective(1000px) rotateY(0deg) rotateX(0deg);
}

/* Features Section */
.features {
    padding: 8rem 0;
    background: var(--secondary-white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
}

.feature-card {
    background: var(--secondary-white);
    padding: 3rem 2.4rem;
    border-radius: var(--border-radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    border: 1px solid rgba(30, 58, 138, 0.1);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    transform: scaleX(0);
    transition: transform var(--transition-normal);
}

.feature-card:hover::before {
    transform: scaleX(1);
}

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

.feature-icon {
    width: 8rem;
    height: 8rem;
    margin: 0 auto 2rem;
    background: var(--secondary-green-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
}

.feature-card:hover .feature-icon {
    background: var(--primary-green);
    transform: scale(1.1);
}

.feature-icon img {
    width: 4rem;
    height: 4rem;
    filter: brightness(0) saturate(100%) invert(27%) sepia(51%) saturate(2878%) hue-rotate(346deg) brightness(104%) contrast(97%);
    transition: filter var(--transition-normal);
}

.feature-card:hover .feature-icon img {
    filter: brightness(0) invert(1);
}

.feature-card h2 {
    font-size: 2.2rem;
    margin-bottom: 1.6rem;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Quality Section */
.quality {
    background: var(--secondary-blue-light);
    padding: 8rem 0;
    position: relative;
}

.section-title {
    text-align: center;
    font-size: 4rem;
    margin-bottom: 6rem;
    color: var(--text-primary);
}

.section-title span {
    color: var(--primary-green);
    position: relative;
}

.section-title span::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-primary);
    border-radius: 2px;
}

.quality-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: center;
}

.quality-text {
    background: var(--secondary-white);
    padding: 4rem;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    position: relative;
}

.quality-text::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 6px;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-lg) var(--border-radius-lg) 0 0;
}

.quality-text p {
    font-size: 1.8rem;
    line-height: 1.7;
    margin-bottom: 3rem;
    color: var(--text-secondary);
}

.quality-image img {
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
}

/* How It Works Section */
.how-it-works {
    padding: 8rem 0;
    background: var(--secondary-white);
}

.steps {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 4rem;
    margin-top: 6rem;
}

.step {
    text-align: center;
    position: relative;
}

.step::after {
    content: '';
    position: absolute;
    top: 4rem;
    right: -2rem;
    width: 4rem;
    height: 2px;
    background: var(--gradient-primary);
    opacity: 0.3;
}

.step:last-child::after {
    display: none;
}

.step-number {
    width: 8rem;
    height: 8rem;
    background: var(--gradient-primary);
    color: var(--text-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.4rem;
    font-weight: 700;
    margin: 0 auto 2.4rem;
    box-shadow: var(--shadow-md);
    position: relative;
    z-index: 1;
}

.step-content h3 {
    font-size: 2.2rem;
    margin-bottom: 1.6rem;
    color: var(--text-primary);
}

.step-content p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Advantages Section */
.advantages {
    background: var(--secondary-green-light);
    padding: 8rem 0;
}

.advantages-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
    margin-top: 6rem;
}

.advantage-card {
    background: var(--secondary-white);
    padding: 3rem 2.4rem;
    border-radius: var(--border-radius-lg);
    text-align: center;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.advantage-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(5, 150, 105, 0.1), transparent);
    transition: left var(--transition-slow);
}

.advantage-card:hover::before {
    left: 100%;
}

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

.advantage-icon {
    width: 8rem;
    height: 8rem;
    margin: 0 auto 2rem;
    background: var(--secondary-blue-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
}

.advantage-card:hover .advantage-icon {
    background: var(--primary-blue);
    transform: scale(1.1);
}

.advantage-icon img {
    width: 4rem;
    height: 4rem;
    filter: brightness(0) saturate(100%) invert(27%) sepia(51%) saturate(2878%) hue-rotate(346deg) brightness(104%) contrast(97%);
    transition: filter var(--transition-normal);
}

.advantage-card:hover .advantage-icon img {
    filter: brightness(0) invert(1);
}

.advantage-card h3 {
    font-size: 2.2rem;
    margin-bottom: 1.6rem;
    color: var(--text-primary);
}

.advantage-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Content Section */
.content-section {
    padding: 8rem 0;
    background: var(--secondary-white);
}

.section-subtitle {
    text-align: center;
    font-size: 1.8rem;
    color: var(--text-secondary);
    margin-bottom: 6rem;
}

.content-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    margin-top: 6rem;
}

.content-card {
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
    position: relative;
}

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

.content-image {
    position: relative;
    overflow: hidden;
}

.content-img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    transition: transform var(--transition-slow);
}

.content-card:hover .content-img {
    transform: scale(1.05);
}

.content-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(30, 58, 138, 0.9));
    color: var(--text-light);
    padding: 2rem;
    transform: translateY(100%);
    transition: transform var(--transition-normal);
}

.content-card:hover .content-overlay {
    transform: translateY(0);
}

.content-overlay h3 {
    font-size: 1.8rem;
    margin-bottom: 1rem;
    color: var(--text-light);
}

.content-overlay p {
    font-size: 1.4rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 0;
}

/* FAQ Section */
.faq {
    background: var(--secondary-gray-light);
    padding: 8rem 0;
}

.faq-list {
    margin-top: 6rem;
}

.faq-item {
    background: var(--secondary-white);
    border-radius: var(--border-radius-md);
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.faq-item:hover {
    box-shadow: var(--shadow-md);
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2.4rem;
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.faq-question:hover {
    background: var(--secondary-blue-light);
}

.faq-question h3 {
    font-size: 1.8rem;
    margin-bottom: 0;
    color: var(--text-primary);
}

.faq-toggle {
    font-size: 2.4rem;
    color: var(--primary-blue);
    font-weight: 300;
    transition: transform var(--transition-normal);
}

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

.faq-answer {
    padding: 0 2.4rem;
    max-height: 0;
    overflow: hidden;
    transition: all var(--transition-normal);
}

.faq-item.active .faq-answer {
    padding: 0 2.4rem 2.4rem;
    max-height: 200px;
}

.faq-answer p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0;
}

/* CTA Section */
.cta {
    background: var(--gradient-primary);
    padding: 8rem 0;
    text-align: center;
    color: var(--text-light);
}

.cta-content h2 {
    font-size: 3.6rem;
    margin-bottom: 2.4rem;
    color: var(--text-light);
}

.cta-content p {
    font-size: 1.8rem;
    margin-bottom: 4rem;
    color: rgba(255, 255, 255, 0.9);
}

.whatsapp-alternating-container {
    display: inline-block;
}

.whatsapp-alternating-button {
    display: inline-flex;
    align-items: center;
    gap: 1.2rem;
    background: var(--secondary-white);
    color: var(--primary-blue);
    padding: 1.6rem 3.2rem;
    border-radius: var(--border-radius-lg);
    font-weight: 600;
    font-size: 1.8rem;
    text-decoration: none;
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-lg);
}

.whatsapp-alternating-button:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
    background: var(--primary-green);
    color: var(--text-light);
}

.whatsapp-icon {
    width: 2.4rem;
    height: 2.4rem;
    background-image: url('../img/icons/icon-whatsapp.svg');
    background-size: contain;
    background-repeat: no-repeat;
    filter: brightness(0) saturate(100%) invert(27%) sepia(51%) saturate(2878%) hue-rotate(346deg) brightness(104%) contrast(97%);
    transition: filter var(--transition-normal);
}

.whatsapp-alternating-button:hover .whatsapp-icon {
    filter: brightness(0) invert(1);
}

/* Footer */
.footer {
    background: var(--primary-gray);
    color: var(--text-light);
    padding: 6rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-logo img {
    height: 5rem;
    margin-bottom: 2rem;
    filter: brightness(0) invert(1);
}

.footer-logo p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.footer h4 {
    font-size: 1.8rem;
    margin-bottom: 2rem;
    color: var(--text-light);
}

.footer ul li {
    margin-bottom: 1rem;
}

.footer ul li a {
    color: rgba(255, 255, 255, 0.8);
    transition: color var(--transition-fast);
}

.footer ul li a:hover {
    color: var(--primary-green);
}

.social-icons {
    display: flex;
    gap: 1.6rem;
}

.social-icons a {
    width: 4rem;
    height: 4rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-normal);
}

.social-icons a:hover {
    background: var(--primary-green);
    transform: translateY(-2px);
}

.social-icons img {
    width: 2rem;
    height: 2rem;
    filter: brightness(0) invert(1);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    margin-bottom: 0;
}

.footer-bottom ul {
    display: flex;
    gap: 2rem;
}

.footer-bottom ul li a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 1.4rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    html {
        font-size: 56.25%; /* 9px = 1rem */
    }
    
    .container {
        padding: 0 1.6rem;
    }
    
    section {
        padding: 6rem 0;
    }
    
    .header-content {
        padding: 1rem 0;
    }
    
    .nav-menu {
        display: none;
    }
    
    .mobile-menu-toggle {
        display: flex;
    }
    
    .hero {
        padding: 10rem 0 6rem;
        margin-top: 7rem;
    }
    
    .hero-content {
        grid-template-columns: 1fr;
        gap: 4rem;
        text-align: center;
    }
    
    .hero-text h1 {
        font-size: 4rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .quality-content {
        grid-template-columns: 1fr;
        gap: 4rem;
    }
    
    .steps {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .step::after {
        display: none;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-text h1 {
        font-size: 3.2rem;
    }
    
    .section-title {
        font-size: 3rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .btn {
        width: 100%;
        max-width: 300px;
    }
}