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

/* Skip Link para Acessibilidade */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--accent-color);
    color: var(--text-primary);
    padding: 8px 16px;
    text-decoration: none;
    z-index: 10000;
    border-radius: 0 0 4px 0;
    font-weight: 600;
}

.skip-link:focus {
    top: 0;
}

:root {
    --primary-color: #1a1a1a;
    --secondary-color: #2d2d2d;
    --accent-color: #0066cc;
    --text-primary: #ffffff;
    --text-secondary: #e0e0e0;
    --text-muted: #b0b0b0;
    --border-color: #333333;
    --bg-dark: #0f0f0f;
    --bg-section: #151515;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --max-width: 1200px;
    --border-radius: 8px;
    --transition: all 0.3s ease;
}

/* Modo Light */
[data-theme="light"] {
    --primary-color: #ffffff;
    --secondary-color: #f5f5f5;
    --accent-color: #0066cc;
    --text-primary: #1a1a1a;
    --text-secondary: #333333;
    --text-muted: #666666;
    --border-color: #e0e0e0;
    --bg-dark: #fafafa;
    --bg-section: #ffffff;
}

/* Tipografia */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.7;
    font-size: 16px;
    transition: background-color 0.3s ease, color 0.3s ease;
    overflow-x: hidden;
    width: 100%;
}

html {
    overflow-x: hidden;
    width: 100%;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-sm);
}

h1 {
    font-size: 1.75rem;
}

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

h3 {
    font-size: 1.75rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
}

a {
    color: var(--accent-color);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: #0088ff;
}

/* Container */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    width: 100%;
    box-sizing: border-box;
}

/* Header e Navegação */
.header {
    background-color: var(--primary-color);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: var(--transition);
    /* Fallback para navegadores sem suporte a backdrop-filter */
    background-color: rgba(26, 26, 26, 0.98);
}

/* backdrop-filter com fallback */
@supports (backdrop-filter: blur(10px)) {
    .header {
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        background-color: rgba(26, 26, 26, 0.95);
    }
}

[data-theme="dark"] .header {
    background-color: rgba(26, 26, 26, 0.98);
}

@supports (backdrop-filter: blur(10px)) {
    [data-theme="dark"] .header {
        background-color: rgba(26, 26, 26, 0.95);
    }
}

[data-theme="light"] .header {
    background-color: rgba(255, 255, 255, 0.98);
}

@supports (backdrop-filter: blur(10px)) {
    [data-theme="light"] .header {
        background-color: rgba(255, 255, 255, 0.95);
    }
}

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

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

.logo a {
    display: flex;
    align-items: center;
    transition: var(--transition);
}

.logo a:hover {
    opacity: 0.9;
    transform: scale(1.02);
}

.logo-img {
    height: 70px;
    width: auto;
    max-width: 280px;
    object-fit: contain;
}

/* Mobile Menu Toggle Button */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 30px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
    position: relative;
}

.hamburger-line {
    width: 100%;
    height: 3px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: all 0.3s ease;
    transform-origin: center;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle[aria-expanded="true"] .hamburger-line:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

.mobile-menu-toggle:focus-visible {
    outline: 3px solid var(--accent-color);
    outline-offset: 2px;
    border-radius: 4px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
    align-items: center;
}

.nav-menu a {
    color: var(--text-secondary);
    font-weight: 500;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.nav-menu a:hover,
.nav-menu a.active,
.nav-menu a[aria-current="page"] {
    color: var(--text-primary);
    background-color: var(--secondary-color);
}

/* Theme Toggle Button */
.theme-toggle {
    background: var(--secondary-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: var(--spacing-xs) var(--spacing-sm);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    font-size: 1.25rem;
    color: var(--text-primary);
    position: relative;
    overflow: hidden;
}

.theme-toggle::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(0, 102, 204, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.theme-toggle:hover::before {
    width: 300px;
    height: 300px;
}

.theme-toggle:hover {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    transform: scale(1.1);
    box-shadow: 0 0 20px rgba(0, 102, 204, 0.4);
}

.theme-toggle:active {
    transform: scale(0.9);
}

.theme-toggle:active .theme-icon {
    transform: rotate(360deg) scale(1.2);
}

/* Focus visible para acessibilidade de teclado */
.theme-toggle:focus-visible {
    outline: 3px solid var(--accent-color);
    outline-offset: 2px;
    box-shadow: 0 0 0 4px rgba(0, 102, 204, 0.3);
}

[data-theme="light"] .theme-toggle:focus-visible {
    outline: 3px solid var(--accent-color);
    box-shadow: 0 0 0 4px rgba(0, 102, 204, 0.2);
}

.theme-icon {
    display: inline-block;
    transition: transform 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
    font-size: 1.25rem;
    line-height: 1;
    position: relative;
    z-index: 1;
}

/* Animação de flutuação suave apenas no hover/focus */
@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-3px);
    }
}

/* Animação de pulso apenas no hover/focus */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

.theme-toggle:hover .theme-icon,
.theme-toggle:focus-visible .theme-icon {
    transform: rotate(15deg) scale(1.1);
    animation: float 2s ease-in-out infinite;
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
    animation: pulse 2s ease-in-out infinite;
}

/* Hero Section */
.hero {
    position: relative;
    padding: var(--spacing-xl) 0;
    border-bottom: 1px solid var(--border-color);
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-bg-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(26, 26, 26, 0.85) 0%, rgba(15, 15, 15, 0.9) 100%);
    z-index: 1;
}

[data-theme="light"] .hero-overlay {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.85) 0%, rgba(250, 250, 250, 0.9) 100%);
}

.hero-content {
    position: relative;
    z-index: 2;
}

.hero-logo {
    display: flex;
    justify-content: center;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.hero-logo-img {
    height: 120px;
    width: auto;
    max-width: 400px;
    object-fit: contain;
    opacity: 0;
    transform: translateY(20px);
    filter: blur(8px);
    animation: heroIn 900ms ease 300ms both;
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-muted) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1.2;
}

[data-theme="light"] .hero-title {
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 900px;
    line-height: 1.8;
}

/* Content Section */
.content-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-dark);
}

.section-block {
    background-color: var(--bg-section);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}

.section-block:hover {
    border-color: var(--accent-color);
    box-shadow: 0 4px 20px rgba(0, 102, 204, 0.1);
}

[data-theme="light"] .section-block:hover {
    box-shadow: 0 4px 20px rgba(0, 102, 204, 0.15);
}

.section-title {
    color: var(--text-primary);
    font-size: 1.75rem;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    display: inline-block;
    position: relative;
    max-width: 100%;
    word-wrap: break-word;
}

/* Underline animado que "desenha" quando entra na tela */
.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--accent-color);
    transform-origin: left;
    transition: width 800ms cubic-bezier(0.4, 0, 0.2, 1);
    max-width: 100%;
}

.section-title.is-visible::after {
    width: 100%;
}

.feature-list {
    list-style: none;
    margin: var(--spacing-md) 0;
    padding-left: 0;
}

.feature-list li {
    padding: var(--spacing-sm) 0;
    padding-left: var(--spacing-lg);
    position: relative;
    color: var(--text-secondary);
    line-height: 1.8;
}

.feature-list li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--accent-color);
    font-weight: bold;
    font-size: 1.2rem;
}

.feature-list li strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* Section Image */
.section-image {
    margin: var(--spacing-md) 0;
    border-radius: var(--border-radius);
    overflow: hidden;
    display: flex;
    justify-content: center;
    align-items: center;
}

.section-img {
    width: 100%;
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: var(--border-radius);
    object-fit: cover;
}

/* CTA Section */
.cta-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-dark);
    border-top: 1px solid var(--border-color);
}

.cta-block {
    background: linear-gradient(135deg, var(--bg-section) 0%, var(--secondary-color) 100%);
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    border: 1px solid var(--border-color);
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.cta-title {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.cta-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.8;
}

.cta-links {
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
}

.cta-links p {
    margin-bottom: var(--spacing-sm);
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

.cta-links strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* Footer */
.footer {
    background-color: var(--primary-color);
    border-top: 1px solid var(--border-color);
    padding: var(--spacing-md) 0;
    margin-top: var(--spacing-xl);
    text-align: center;
}

.footer p {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin: 0;
}

.footer-address {
    margin-top: var(--spacing-sm);
    color: var(--text-muted);
    font-size: 0.85rem;
    line-height: 1.6;
}

/* Responsividade */
@media (max-width: 768px) {
    :root {
        --spacing-xs: 0.5rem;
        --spacing-sm: 1rem;
        --spacing-md: 1.5rem;
        --spacing-lg: 2rem;
        --spacing-xl: 2.5rem;
    }

    body {
        font-size: 15px;
    }

    .container {
        padding: 0 var(--spacing-md);
        width: 100%;
        box-sizing: border-box;
    }

    .hero {
        padding: var(--spacing-xl) 0;
        min-height: 60vh;
    }

    .hero-bg-image {
        object-fit: cover;
        object-position: center;
    }

    .hero-overlay {
        background: linear-gradient(135deg, rgba(26, 26, 26, 0.9) 0%, rgba(15, 15, 15, 0.95) 100%);
    }

    [data-theme="light"] .hero-overlay {
        background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(250, 250, 250, 0.95) 100%);
    }

    .hero-logo {
        margin-bottom: var(--spacing-lg);
    }

    .hero-title {
        margin-bottom: var(--spacing-lg);
    }

    .hero-subtitle {
        margin-bottom: var(--spacing-md);
    }

    .content-section {
        padding: var(--spacing-xl) 0;
    }

    .section-block {
        padding: var(--spacing-lg);
        margin-bottom: var(--spacing-lg);
    }

    .section-title {
        margin-bottom: var(--spacing-md);
        padding-bottom: var(--spacing-sm);
    }

    .section-image {
        margin: var(--spacing-md) 0;
    }

    .feature-list {
        margin: var(--spacing-md) 0;
    }

    .feature-list li {
        padding: var(--spacing-sm) 0;
    }

    p {
        margin-bottom: var(--spacing-md);
    }

    .cta-section {
        padding: var(--spacing-xl) 0;
    }

    .cta-block {
        padding: var(--spacing-lg);
    }

    .cta-title {
        margin-bottom: var(--spacing-md);
    }

    .cta-text {
        margin-bottom: var(--spacing-md);
    }

    .cta-links {
        margin-top: var(--spacing-lg);
        padding-top: var(--spacing-md);
    }

    .footer {
        padding: var(--spacing-lg) 0;
        margin-top: var(--spacing-xl);
    }

    .nav-container {
        flex-wrap: wrap;
        gap: var(--spacing-xs);
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .mobile-menu-toggle {
        display: flex;
        order: 2;
        margin-left: auto;
    }

    .nav-menu {
        display: none;
        flex-direction: column;
        width: 100%;
        gap: var(--spacing-sm);
        padding: var(--spacing-md);
        order: 3;
        background-color: var(--primary-color);
        border: 1px solid var(--border-color);
        border-radius: var(--border-radius);
        margin-top: var(--spacing-sm);
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        box-sizing: border-box;
    }

    .nav-menu.active {
        display: flex;
    }

    .nav-menu li {
        width: 100%;
    }

    .nav-menu a {
        display: block;
        width: 100%;
        text-align: center;
        padding: var(--spacing-md);
        border-radius: var(--border-radius);
        margin: 0;
    }

    .nav-menu button.theme-toggle {
        display: flex;
        width: 100%;
        justify-content: center;
        align-items: center;
        padding: var(--spacing-md);
        border-radius: var(--border-radius);
        margin: 0;
    }


    .logo-img {
        height: 50px;
        max-width: 180px;
    }

    .hero-logo-img {
        height: 80px;
        max-width: 280px;
    }

    .hero-title {
        font-size: 1.875rem;
        line-height: 1.3;
    }

    .hero-subtitle {
        font-size: 1rem;
        line-height: 1.7;
    }

    .section-title {
        font-size: 1.375rem;
        display: block;
        width: 100%;
        word-wrap: break-word;
        word-break: break-word;
        overflow-wrap: break-word;
        hyphens: auto;
    }

    .feature-list li {
        padding-left: var(--spacing-md);
        font-size: 0.95rem;
        line-height: 1.7;
    }

    .feature-list li::before {
        font-size: 1rem;
    }

    p {
        font-size: 0.95rem;
        line-height: 1.7;
    }

    h2 {
        font-size: 1.75rem;
    }

    .cta-title {
        font-size: 1.375rem;
    }

    .cta-text {
        font-size: 0.95rem;
        line-height: 1.7;
    }

    .cta-links p {
        font-size: 0.875rem;
        line-height: 1.6;
    }

    .footer p {
        font-size: 0.85rem;
    }

    .footer-address {
        font-size: 0.8rem;
        margin-top: var(--spacing-xs);
    }

    .back-to-top {
        bottom: 15px;
        right: 15px;
        width: 44px;
        height: 44px;
    }

    .back-to-top svg {
        width: 18px;
        height: 18px;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-xs: 0.5rem;
        --spacing-sm: 0.875rem;
        --spacing-md: 1.25rem;
        --spacing-lg: 1.75rem;
        --spacing-xl: 2rem;
    }

    body {
        font-size: 14px;
    }

    .container {
        padding: 0 var(--spacing-md);
        width: 100%;
        box-sizing: border-box;
    }

    .nav-container {
        padding: var(--spacing-sm) var(--spacing-md);
    }

    .nav-menu {
        width: 100%;
        padding: var(--spacing-md);
        gap: var(--spacing-sm);
        box-sizing: border-box;
    }

    .nav-menu a {
        padding: var(--spacing-md);
    }

    .nav-menu button.theme-toggle {
        padding: var(--spacing-md);
    }

    .logo-img {
        height: 45px;
        max-width: 160px;
    }

    .hero {
        padding: var(--spacing-lg) 0;
        min-height: 50vh;
    }

    .hero-bg-image {
        object-fit: cover;
        object-position: center;
    }

    .hero-overlay {
        background: linear-gradient(135deg, rgba(26, 26, 26, 0.92) 0%, rgba(15, 15, 15, 0.96) 100%);
    }

    [data-theme="light"] .hero-overlay {
        background: linear-gradient(135deg, rgba(255, 255, 255, 0.92) 0%, rgba(250, 250, 250, 0.96) 100%);
    }

    .hero-logo {
        margin-bottom: var(--spacing-md);
    }
    
    .hero-logo-img {
        height: 65px;
        max-width: 220px;
    }

    .hero-title {
        font-size: 1.5rem;
        margin-bottom: var(--spacing-md);
        line-height: 1.25;
    }

    .hero-subtitle {
        font-size: 0.9375rem;
        line-height: 1.6;
        margin-bottom: var(--spacing-md);
    }

    .content-section {
        padding: var(--spacing-lg) 0;
    }

    .section-block {
        padding: var(--spacing-md);
        margin-bottom: var(--spacing-md);
    }

    .section-title {
        font-size: 1.125rem;
        margin-bottom: var(--spacing-md);
        padding-bottom: var(--spacing-sm);
        display: block;
        width: 100%;
        word-wrap: break-word;
        hyphens: auto;
        line-height: 1.4;
    }

    .section-image {
        margin: var(--spacing-md) 0;
    }

    .feature-list {
        margin: var(--spacing-md) 0;
    }

    .feature-list li {
        padding: var(--spacing-sm) 0;
        padding-left: var(--spacing-md);
        font-size: 0.875rem;
        line-height: 1.6;
    }

    .feature-list li::before {
        font-size: 0.9rem;
    }

    p {
        margin-bottom: var(--spacing-md);
        font-size: 0.875rem;
        line-height: 1.6;
    }

    h2 {
        font-size: 1.5rem;
    }

    .cta-section {
        padding: var(--spacing-lg) 0;
    }

    .cta-block {
        padding: var(--spacing-md);
    }

    .cta-title {
        font-size: 1.125rem;
        margin-bottom: var(--spacing-md);
    }

    .cta-text {
        font-size: 0.875rem;
        margin-bottom: var(--spacing-md);
        line-height: 1.6;
    }

    .cta-links {
        margin-top: var(--spacing-md);
        padding-top: var(--spacing-md);
    }

    .cta-links p {
        font-size: 0.8125rem;
        line-height: 1.5;
        margin-bottom: var(--spacing-sm);
    }

    .footer {
        padding: var(--spacing-md) 0;
        margin-top: var(--spacing-lg);
    }

    .footer p {
        font-size: 0.8rem;
    }

    .footer-address {
        font-size: 0.75rem;
        margin-top: var(--spacing-xs);
        line-height: 1.5;
    }

    .back-to-top {
        bottom: 12px;
        right: 12px;
        width: 40px;
        height: 40px;
    }

    .back-to-top svg {
        width: 16px;
        height: 16px;
    }

    /* Melhorar legibilidade em telas pequenas */
    .hero-subtitle + .hero-subtitle {
        margin-top: var(--spacing-sm);
    }

    /* Ajustar espaçamento entre seções */
    .section-block p + p {
        margin-top: var(--spacing-sm);
    }

    /* Garantir que textos não fiquem muito apertados */
    .section-block ul.feature-list + p {
        margin-top: var(--spacing-md);
    }

    /* Prevenir overflow horizontal */
    * {
        max-width: 100%;
    }

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

    /* Garantir que títulos longos quebrem corretamente */
    .section-title {
        word-break: break-word;
        overflow-wrap: break-word;
    }

    /* Ajustar padding dos section-blocks para melhor espaçamento */
    .section-block {
        word-wrap: break-word;
    }

    /* Melhorar espaçamento entre elementos */
    .section-block > *:first-child {
        margin-top: 0;
    }

    .section-block > *:last-child {
        margin-bottom: 0;
    }
}

/* Breakpoint intermediário para tablets pequenos */
@media (max-width: 640px) and (min-width: 481px) {
    .hero-title {
        font-size: 1.625rem;
    }

    .hero-subtitle {
        font-size: 0.96875rem;
    }

    .section-title {
        font-size: 1.25rem;
        display: block;
        width: 100%;
        word-wrap: break-word;
    }
}

/* Animações suaves */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Aplicar animação apenas uma vez e respeitar prefers-reduced-motion */
@media (prefers-reduced-motion: no-preference) {
    .section-block {
        animation: fadeIn 0.6s ease-out;
    }
}

/* Desabilitar animações para usuários que preferem movimento reduzido */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .section-block {
        animation: none;
    }
    
    .theme-icon {
        animation: none;
    }
    
    .theme-toggle {
        animation: none;
    }
}

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

/* ===== Animations (premium) ===== */

/* Estado inicial dos elementos que vão aparecer no scroll */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  filter: blur(6px);
  transition: opacity 700ms ease, transform 700ms ease, filter 700ms ease;
  will-change: opacity, transform, filter;
}

/* Estado final quando entra na viewport */
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

/* Variações opcionais */
.reveal.reveal-up { transform: translateY(18px); }
.reveal.reveal-left { transform: translateX(-18px); }
.reveal.reveal-right { transform: translateX(18px); }
.reveal.reveal-zoom { transform: scale(0.98); }

/* Hero: entrada suave ao carregar */
@keyframes heroIn {
  from { opacity: 0; transform: translateY(12px); filter: blur(8px); }
  to { opacity: 1; transform: translateY(0); filter: blur(0); }
}

.hero-title, .hero-subtitle {
  animation: heroIn 900ms ease both;
}

.hero-subtitle {
  animation-delay: 120ms;
}

/* Microinteração mais "premium" nos cards */
.section-block {
  transform: translateY(0);
  transition: transform 250ms ease, box-shadow 250ms ease, border-color 250ms ease;
}

.section-block:hover {
  transform: translateY(-4px);
}

/* Desabilitar hover effects em touch devices */
@media (hover: none) and (pointer: coarse) {
  .section-block:hover {
    transform: translateY(0);
  }
  
  .cta-block:hover {
    transform: translateY(0);
  }
  
  .logo a:hover {
    transform: scale(1);
  }
}

/* CTA: glow suave ao passar o mouse */
.cta-block {
  transition: transform 250ms ease, box-shadow 250ms ease, border-color 250ms ease;
}

.cta-block:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(0, 102, 204, 0.18);
  border-color: rgba(0, 102, 204, 0.45);
}

/* Respeitar usuários com movimento reduzido */
@media (prefers-reduced-motion: reduce) {
  .reveal,
  .hero-title,
  .hero-subtitle,
  .hero-logo-img {
    animation: none !important;
    transition: none !important;
    transform: none !important;
    opacity: 1 !important;
    filter: none !important;
  }
  
  .section-block:hover,
  .cta-block:hover {
    transform: none !important;
  }
  
  .section-title::after {
    width: 100% !important;
    transition: none !important;
  }
}

/* Botão Voltar ao Topo */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background-color: var(--accent-color);
    color: var(--text-primary);
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.3);
    transition: all 0.3s ease;
    z-index: 999;
    opacity: 0;
    transform: translateY(20px);
}

.back-to-top.visible {
    display: flex;
    opacity: 1;
    transform: translateY(0);
}

.back-to-top:hover {
    background-color: #0088ff;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 102, 204, 0.4);
}

.back-to-top:active {
    transform: translateY(-1px);
}

.back-to-top:focus-visible {
    outline: 3px solid var(--accent-color);
    outline-offset: 2px;
}

.back-to-top svg {
    width: 20px;
    height: 20px;
}