/* ========================================
   IoniaBR - Consultoria Especializada
   CSS Otimizado para Performance e SEO
   ======================================== */

/* ========================================
   CSS Variables - Design System
   ======================================== */
:root {
    /* Cores Principais */
    --primary-color: #0066cc;
    --primary-dark: #004d99;
    --primary-light: #3385d6;
    --secondary-color: #00b894;
    --secondary-dark: #00916f;
    --secondary-light: #33c7a5;

    /* Cores de Suporte */
    --accent-color: #ff6b6b;
    --success-color: #00b894;
    --warning-color: #fdcb6e;
    --error-color: #d63031;
    --info-color: #0984e3;

    /* Cores de Texto */
    --text-primary: #2d3436;
    --text-secondary: #636e72;
    --text-light: #b2bec3;
    --text-white: #ffffff;

    /* Cores de Fundo */
    --bg-white: #ffffff;
    --bg-light: #f8f9fa;
    --bg-dark: #2d3436;
    --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);

    /* Tipografia */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    --font-heading: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Tamanhos de Fonte */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 1.875rem;
    --font-size-4xl: 2.25rem;
    --font-size-5xl: 3rem;

    /* Espaçamento */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;

    /* Border Radius */
    --radius-sm: 0.25rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-full: 9999px;

    /* 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), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

    /* Transições */
    --transition-fast: 150ms ease-in-out;
    --transition-base: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;

    /* Container */
    --container-max-width: 1200px;
    --container-padding: 1rem;
}

/* ========================================
   Reset e Base Styles
   ======================================== */
*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-white);
    overflow-x: hidden;
}

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

h1 {
    font-size: var(--font-size-4xl);
}

h2 {
    font-size: var(--font-size-3xl);
}

h3 {
    font-size: var(--font-size-2xl);
}

h4 {
    font-size: var(--font-size-xl);
}

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

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

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

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

/* ========================================
   Container e Layout
   ======================================== */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    width: 100%;
}

/* ========================================
   Header e Navegação
   ======================================== */
.header {
    background-color: var(--bg-white);
    box-shadow: var(--shadow-sm);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: box-shadow var(--transition-base);
}

.navbar {
    padding: var(--spacing-md) 0;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar-brand .logo {
    font-size: var(--font-size-2xl);
    font-weight: 800;
    background: var(--bg-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
}

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

.navbar-menu li a {
    font-weight: 500;
    font-size: var(--font-size-sm);
    color: var(--text-primary);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.navbar-menu li a:hover,
.navbar-menu li a.active {
    color: var(--primary-color);
    background-color: rgba(0, 102, 204, 0.05);
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-block;
    padding: var(--spacing-md) var(--spacing-xl);
    font-weight: 600;
    font-size: var(--font-size-base);
    text-align: center;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

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

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

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

.btn-secondary:hover {
    background: var(--primary-color);
    color: var(--text-white);
}

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

/* ========================================
   Hero Section
   ======================================== */
.hero {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--text-white);
    padding: var(--spacing-4xl) 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg width="100" height="100" xmlns="http://www.w3.org/2000/svg"><defs><pattern id="grid" width="100" height="100" patternUnits="userSpaceOnUse"><path d="M 100 0 L 0 0 0 100" fill="none" stroke="rgba(255,255,255,0.05)" stroke-width="1"/></pattern></defs><rect width="100%" height="100%" fill="url(%23grid)"/></svg>');
    opacity: 0.3;
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 900px;
    margin: 0 auto;
    text-align: center;
}

.hero-title {
    font-size: var(--font-size-5xl);
    font-weight: 800;
    color: var(--text-white);
    margin-bottom: var(--spacing-lg);
    line-height: 1.1;
}

.hero-subtitle {
    font-size: var(--font-size-xl);
    color: rgba(255, 255, 255, 0.95);
    margin-bottom: var(--spacing-2xl);
    line-height: 1.6;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-lg);
    justify-content: center;
    margin-bottom: var(--spacing-xl);
    flex-wrap: wrap;
}

.hero-trust {
    margin-top: var(--spacing-2xl);
    padding-top: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.hero-trust p {
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--font-size-lg);
    font-weight: 500;
}

/* ========================================
   Sections
   ======================================== */
section {
    padding: var(--spacing-4xl) 0;
}

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

.section-subtitle {
    text-align: center;
    font-size: var(--font-size-xl);
    color: var(--text-secondary);
    margin-bottom: var(--spacing-3xl);
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

/* ========================================
   Services Section
   ======================================== */
.services {
    background-color: var(--bg-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-2xl);
}

.service-card {
    background: var(--bg-white);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
}

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

.service-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.service-icon img {
    width: 50px;
    height: 50px;
    filter: brightness(0) invert(1);
}

.service-card h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

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

.service-features {
    list-style: none;
    padding: 0;
}

.service-features li {
    padding: var(--spacing-sm) 0;
    color: var(--text-secondary);
    position: relative;
    padding-left: var(--spacing-lg);
}

.service-features li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success-color);
    font-weight: bold;
}

/* ========================================
   Solutions Section
   ======================================== */
.solutions-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-xl);
}

.solution-item {
    padding: var(--spacing-xl);
    background: var(--bg-white);
    border-left: 4px solid var(--primary-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.solution-item:hover {
    background: var(--bg-light);
    transform: translateX(8px);
}

.solution-item h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.solution-item p {
    color: var(--text-secondary);
    margin: 0;
}

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

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.benefit-card {
    background: var(--bg-white);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.benefit-number {
    font-size: var(--font-size-4xl);
    font-weight: 800;
    color: rgba(102, 126, 234, 0.1);
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
}

.benefit-card h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-md);
    position: relative;
    z-index: 1;
}

.benefit-card p {
    color: var(--text-secondary);
    margin: 0;
    position: relative;
    z-index: 1;
}

/* ========================================
   FAQ Section
   ======================================== */
.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-white);
    border: 1px solid #e0e0e0;
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
    overflow: hidden;
    transition: all var(--transition-base);
}

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

.faq-item summary {
    padding: var(--spacing-lg) var(--spacing-xl);
    font-weight: 600;
    font-size: var(--font-size-lg);
    color: var(--text-primary);
    cursor: pointer;
    user-select: none;
    list-style: none;
    position: relative;
    transition: all var(--transition-base);
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: '+';
    position: absolute;
    right: var(--spacing-xl);
    top: 50%;
    transform: translateY(-50%);
    font-size: var(--font-size-2xl);
    color: var(--primary-color);
    transition: transform var(--transition-base);
}

.faq-item[open] summary::after {
    content: '−';
    transform: translateY(-50%) rotate(180deg);
}

.faq-item summary:hover {
    background-color: var(--bg-light);
    color: var(--primary-color);
}

.faq-answer {
    padding: 0 var(--spacing-xl) var(--spacing-lg) var(--spacing-xl);
}

.faq-answer p {
    color: var(--text-secondary);
    line-height: 1.7;
}

/* ========================================
   Contact Section
   ======================================== */
.contact {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--text-white);
}

.contact .section-title,
.contact .section-subtitle {
    color: var(--text-white);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.contact-info {
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(10px);
}

.contact-info h3 {
    color: var(--text-white);
    margin-bottom: var(--spacing-lg);
}

.contact-benefits {
    list-style: none;
    padding: 0;
}

.contact-benefits li {
    padding: var(--spacing-sm) 0;
    color: rgba(255, 255, 255, 0.9);
    font-size: var(--font-size-lg);
}

.contact-form {
    background: var(--bg-white);
    padding: var(--spacing-2xl);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
}

.meetings-iframe-container {
    min-height: 600px;
}

/* ========================================
   Resources Section
   ======================================== */
.resources {
    background-color: var(--bg-light);
}

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

.resource-card {
    background: var(--bg-white);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.resource-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
}

.resource-card h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
}

.resource-card p {
    color: var(--text-secondary);
    margin: 0;
    font-size: var(--font-size-sm);
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background-color: var(--bg-dark);
    color: rgba(255, 255, 255, 0.8);
    padding: var(--spacing-4xl) 0 var(--spacing-xl) 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-section h3,
.footer-section h4 {
    color: var(--text-white);
    margin-bottom: var(--spacing-lg);
}

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

.footer-section ul {
    list-style: none;
    padding: 0;
}

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

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.7);
    font-size: var(--font-size-sm);
    transition: color var(--transition-base);
}

.footer-section ul li a:hover {
    color: var(--text-white);
}

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

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

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

.footer-legal {
    display: flex;
    gap: var(--spacing-lg);
    list-style: none;
}

.footer-legal li a {
    color: rgba(255, 255, 255, 0.6);
    font-size: var(--font-size-sm);
}

/* ========================================
   Responsive Design
   ======================================== */
@media (max-width: 1024px) {
    :root {
        --font-size-5xl: 2.5rem;
        --font-size-4xl: 2rem;
        --font-size-3xl: 1.75rem;
    }

    .navbar-menu {
        gap: var(--spacing-lg);
    }

    .contact-content {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-5xl: 2rem;
        --font-size-4xl: 1.75rem;
        --font-size-3xl: 1.5rem;
        --spacing-4xl: 3rem;
    }

    .navbar-menu {
        display: none;
    }

    .hero {
        padding: var(--spacing-3xl) 0;
    }

    .hero-title {
        font-size: var(--font-size-3xl);
    }

    .hero-subtitle {
        font-size: var(--font-size-base);
    }

    .hero-cta {
        flex-direction: column;
    }

    .hero-cta .btn {
        width: 100%;
    }

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

    .solutions-content {
        grid-template-columns: 1fr;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    :root {
        --container-padding: 1rem;
        --spacing-4xl: 2rem;
    }

    .section-title {
        font-size: var(--font-size-2xl);
    }

    .section-subtitle {
        font-size: var(--font-size-base);
    }
}

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

@keyframes slideIn {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ========================================
   Accessibility
   ======================================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}

/* Focus visible para acessibilidade */
:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .header,
    .footer,
    .contact-form {
        display: none;
    }
}