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

/* Accessibility - Skip Link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary-blue);
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    z-index: 1000;
    transition: top 0.3s;
}

.skip-link:focus {
    top: 6px;
}

/* Focus styles for accessibility */
a:focus,
button:focus,
input:focus,
textarea:focus,
select:focus {
    outline: 2px solid var(--primary-green);
    outline-offset: 2px;
}

/* Remove focus outline for mouse users, keep for keyboard */
*:focus:not(:focus-visible) {
    outline: none;
}

/* Ensure focus is visible for keyboard navigation */
*:focus-visible {
    outline: 2px solid var(--primary-green);
    outline-offset: 2px;
}

/* Variables */
:root {
    /* Cores principais */
    --primary-blue: #1E3A8A;
    --secondary-blue: #3B82F6;
    --primary-green: #10B981;
    --secondary-green: #059669;
    --accent-turquoise: #06B6D4;
    --orange: #F59E0B;
    --red: #EF4444;
    
    /* Gradientes */
    --gradient-primary: linear-gradient(135deg, var(--primary-blue) 0%, var(--secondary-blue) 100%);
    --gradient-hero: linear-gradient(135deg, #1E3A8A 0%, #3B82F6 50%, #10B981 100%);
    --gradient-cta: linear-gradient(135deg, var(--primary-green) 0%, var(--accent-turquoise) 100%);
    
    /* Cores de fundo */
    --bg-primary: #F8FAFC;
    --bg-secondary: #FFFFFF;
    --bg-card: #FFFFFF;
    
    /* Cores de texto */
    --text-primary: #1F2937;
    --text-secondary: #6B7280;
    --text-light: #9CA3AF;
    
    /* Tipografia */
    --font-primary: 'Noto Sans', sans-serif;
    --font-size-base: 16px;
    --line-height-base: 1.6;
    
    /* Espaçamentos */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    
    /* Bordas */
    --border-radius-sm: 0.25rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 1rem;
    --border-radius-xl: 1.5rem;
    
    /* Sombras */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    
    /* Transições */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

/* Base */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    overflow-x: hidden;
}

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

/* Section */
.section {
    padding: var(--spacing-3xl) 0;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    z-index: 1000;
    transition: var(--transition-normal);
}

.header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-md);
}

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

.nav__logo {
    display: flex;
    align-items: center;
}

.nav__logo img {
    height: 40px;
    width: auto;
}

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

.nav__link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition-fast);
    position: relative;
}

.nav__link:hover,
.nav__link:focus {
    color: var(--primary-green);
}

.nav__link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-green);
    transition: var(--transition-fast);
}

.nav__link:hover::after,
.nav__link:focus::after {
    width: 100%;
}

.nav__login {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    background: var(--gradient-primary);
    color: white;
    padding: var(--spacing-sm) var(--spacing-lg);
    border-radius: var(--border-radius-lg);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-fast);
}

.nav__login:hover,
.nav__login:focus {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.nav__toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-primary);
    cursor: pointer;
    padding: var(--spacing-sm);
    border-radius: var(--border-radius-sm);
    transition: var(--transition-fast);
}

.nav__toggle:hover,
.nav__toggle:focus {
    background: var(--bg-primary);
    color: var(--primary-green);
}

/* Hero Section */
.hero {
    background: var(--gradient-hero);
    color: white;
    padding: calc(80px + var(--spacing-3xl)) 0 var(--spacing-3xl);
    position: relative;
    overflow: hidden;
}

.hero__container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.hero__title {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-lg);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero__title .highlight {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    padding: 0.2rem 0.5rem;
    border-radius: var(--border-radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.hero__title img {
    height: 3.5em;
    width: auto;
    vertical-align: middle;
    margin: 0 0.5em;
}

.hero__subtitle {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-xl);
    opacity: 0.9;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
}

.hero__buttons {
    display: flex;
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.hero__stats {
    display: flex;
    gap: var(--spacing-xl);
}

.stat {
    text-align: center;
}

.stat__number {
    display: block;
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-green);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.stat__label {
    font-size: 0.9rem;
    opacity: 0.8;
}

.hero__image {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
}

.hero__image img {
    max-width: 100%;
    height: auto;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border-radius: var(--border-radius-lg);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-fast);
    border: none;
    cursor: pointer;
    font-size: 1rem;
}

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

.btn--primary:hover,
.btn--primary:focus {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn--secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn--secondary:hover,
.btn--secondary:focus {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

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

.btn--outline:hover,
.btn--outline:focus {
    background: var(--primary-blue);
    color: white;
}

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

/* Features Section */
.features__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-2xl);
}

.feature {
    background: var(--bg-secondary);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-md);
    transition: var(--transition-normal);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.feature:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.feature__icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-primary);
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.feature__icon i {
    font-size: 1.5rem;
    color: white;
}

.feature h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.feature p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.feature__list {
    list-style: none;
}

.feature__list li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

.feature__list i {
    color: var(--primary-green);
    font-size: 0.9rem;
}

/* Benefits Section */
.benefits {
    background: var(--bg-secondary);
}

.benefits__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-2xl);
}

.benefit {
    text-align: center;
    padding: var(--spacing-xl);
}

.benefit__icon {
    width: 80px;
    height: 80px;
    background: var(--gradient-primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
}

.benefit__icon i {
    font-size: 2rem;
    color: white;
}

.benefit h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.benefit p {
    color: var(--text-secondary);
}

/* Technology Section */
.technology {
    background: var(--bg-primary);
}

.technology .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-3xl);
    align-items: center;
}

.technology__title {
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.technology__title img {
    max-width: 100%;
    height: auto;
    max-height: 60px;
}

.technology p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-2xl);
}

.technology__features {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.tech-feature {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.tech-feature i {
    width: 50px;
    height: 50px;
    background: var(--primary-green);
    border-radius: var(--border-radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.2rem;
}

.tech-feature h4 {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-xs);
    color: var(--text-primary);
}

.tech-feature p {
    color: var(--text-secondary);
    margin: 0;
}

/* Imagem do ELEGE */
.technology__image {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 400px;
}

.technology__image img {
    max-width: 100%;
    height: auto;
}

/* Testimonials Section */
.testimonials {
    background: var(--bg-secondary);
}

.testimonials__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-2xl);
    margin-top: var(--spacing-2xl);
}

.testimonial {
    background: var(--bg-primary);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-md);
    border-left: 4px solid var(--primary-green);
}

.testimonial__content p {
    font-style: italic;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    font-size: 1.1rem;
}

.testimonial__author h4 {
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.testimonial__author span {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Contact Section */
.contact__grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-3xl);
    margin-top: var(--spacing-2xl);
}

.contact__highlight {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
}

.highlight__item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-sm);
}

.highlight__item i {
    color: var(--primary-green);
    font-size: 1.2rem;
}

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

.contact__option {
    background: var(--bg-secondary);
    padding: var(--spacing-2xl);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: var(--transition-normal);
}

.contact__option:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.contact__option h4 {
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.contact__option p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.contact__cta {
    text-align: center;
    margin-top: var(--spacing-3xl);
    padding: var(--spacing-3xl);
    background: var(--gradient-cta);
    border-radius: var(--border-radius-xl);
    color: white;
}

.contact__cta h3 {
    font-size: 2rem;
    margin-bottom: var(--spacing-lg);
}

.contact__cta p {
    font-size: 1.1rem;
    margin-bottom: var(--spacing-2xl);
    opacity: 0.9;
}

/* CTA Section */
.cta {
    background: var(--gradient-primary);
    color: white;
    text-align: center;
}

.cta h2 {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-lg);
}

.cta p {
    font-size: 1.2rem;
    margin-bottom: var(--spacing-2xl);
    opacity: 0.9;
}

.cta__buttons {
    display: flex;
    justify-content: center;
    gap: var(--spacing-lg);
}

/* Footer */
.footer {
    background: var(--text-primary);
    color: white;
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer__content {
    display: grid;
    grid-template-columns: 2fr 3fr;
    gap: var(--spacing-3xl);
    margin-bottom: var(--spacing-2xl);
}

.footer__logo img {
    height: 50px;
    width: auto;
    margin-bottom: var(--spacing-lg);
}

.footer__brand p {
    color: rgba(255, 255, 255, 0.7);
    margin: var(--spacing-lg) 0;
}

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

.footer__social a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer__social a:hover,
.footer__social a:focus {
    background: var(--primary-green);
    transform: translateY(-2px);
}

.footer__links {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-xl);
}

.footer__column h4 {
    margin-bottom: var(--spacing-lg);
    color: white;
}

.footer__column ul {
    list-style: none;
}

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

.footer__column a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: var(--transition-fast);
}

.footer__column a:hover,
.footer__column a:focus {
    color: var(--primary-green);
}

.footer__bottom {
    text-align: center;
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.7);
}

/* WhatsApp Float Button */
.whatsapp-float {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1000;
}

.whatsapp-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: #25D366;
    color: white;
    border-radius: 50%;
    text-decoration: none;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-fast);
    position: relative;
}

.whatsapp-btn:hover,
.whatsapp-btn:focus {
    transform: scale(1.1);
    box-shadow: var(--shadow-xl);
}

.whatsapp-btn i {
    font-size: 1.5rem;
}

.whatsapp-tooltip {
    position: absolute;
    right: 70px;
    background: var(--text-primary);
    color: white;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    font-size: 0.9rem;
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-fast);
}

.whatsapp-tooltip::after {
    content: '';
    position: absolute;
    right: -5px;
    top: 50%;
    transform: translateY(-50%);
    border-left: 5px solid var(--text-primary);
    border-top: 5px solid transparent;
    border-bottom: 5px solid transparent;
}

.whatsapp-btn:hover .whatsapp-tooltip,
.whatsapp-btn:focus .whatsapp-tooltip {
    opacity: 1;
    visibility: visible;
}

/* Scroll to Top Button */
.scroll-to-top {
    position: fixed;
    bottom: 20px;
    right: 90px;
    width: 50px;
    height: 50px;
    background: var(--primary-green);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    transition: var(--transition-fast);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
}

.scroll-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.scroll-to-top:hover,
.scroll-to-top:focus {
    background: var(--secondary-green);
    transform: translateY(-2px);
}

.scroll-to-top i {
    font-size: 1.2rem;
}

/* Section Titles */
.section__title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero__container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .technology .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .contact__grid {
        grid-template-columns: 1fr;
    }
    
    .footer__content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
    }
    
    .footer__links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav__menu {
        position: fixed;
        top: 100%;
        left: 0;
        width: 100%;
        background: white;
        flex-direction: column;
        padding: var(--spacing-xl);
        box-shadow: var(--shadow-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: var(--transition-normal);
    }
    
    .nav__menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav__toggle {
        display: block;
    }
    
    .hero__title {
        font-size: 2rem;
    }
    
    .hero__buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .hero__stats {
        justify-content: center;
    }
    
    .features__grid {
        grid-template-columns: 1fr;
    }
    
    .benefits__grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials__grid {
        grid-template-columns: 1fr;
    }
    
    .contact__options {
        grid-template-columns: 1fr;
    }
    
    .download__content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
        text-align: center;
    }
    
    .download__info h3 {
        font-size: 1.8rem;
    }
    
    .app__preview img {
        max-width: 250px;
    }
    
    .cta__buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .footer__links {
        grid-template-columns: 1fr;
    }
    
    .scroll-to-top {
        right: 75px;
    }
    
    .whatsapp-float {
        bottom: 15px;
        right: 15px;
    }
    
    .whatsapp-btn {
        width: 50px;
        height: 50px;
    }
    
    .whatsapp-btn i {
        font-size: 1.2rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 var(--spacing-md);
    }
    
    .hero__title {
        font-size: 1.8rem;
    }
    
    .hero__title img {
        height: 1.8em;
    }
    
    .section__title {
        font-size: 2rem;
    }
}

@media (max-width: 360px) {
    .hero__title {
        font-size: 1.5rem;
    }
    
    .hero__title img {
        height: 1.5em;
    }
}
    
    .btn {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: 0.9rem;
    }
    
    .btn--large {
        padding: var(--spacing-md) var(--spacing-xl);
        font-size: 1rem;
    }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* Loading animation */
.loading {
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition-normal);
}

.loading.loaded {
    opacity: 1;
    transform: translateY(0);
}

/* Pulse animation for WhatsApp button */
@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(37, 211, 102, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(37, 211, 102, 0);
    }
}

.whatsapp-btn {
    animation: pulse 2s infinite;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .btn {
        border: 2px solid currentColor;
    }
    
    .feature,
    .testimonial,
    .contact__option {
        border: 2px solid var(--text-primary);
    }
}

/* Reduced motion support */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .whatsapp-btn {
        animation: none;
    }
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .technology__image img {
        max-width: 280px;
        width: 100%;
        height: auto;
    }
    
    .hero__image img {
        max-width: 320px;
        width: 100%;
        height: auto;
    }
}

@media (max-width: 480px) {
    .technology__image img {
        max-width: 240px;
    }
    
    .hero__image img {
        max-width: 280px;
    }
    
    .nav__logo img {
        height: 32px;
    }
    
    .footer__logo img {
        height: 40px;
    }
    
    .technology__title img {
        max-height: 40px;
    }
    
    .hero__title img {
        height: 2em;
    }
}

@media (max-width: 360px) {
    .hero__title {
        font-size: 1.5rem;
    }
    
    .hero__title img {
        height: 1.5em;
    }
}