/* ============================================
   Design System - Site Institucional tvde.one
   Baseado em: DESIGN_SYSTEM.md
   ============================================ */

/* ============================================
   Reset & Base Styles
   ============================================ */

   * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ============================================
   Acessibilidade (WCAG 2.1)
   ============================================ */

/* Skip to Content Link - Visível apenas quando recebe foco (acessibilidade) */
body > .skip-to-content {
    position: fixed !important;
    top: -9999px !important;
    left: -9999px !important;
    width: 1px !important;
    height: 1px !important;
    padding: 0 !important;
    margin: -1px !important;
    overflow: hidden !important;
    clip: rect(0, 0, 0, 0) !important;
    clip-path: inset(50%) !important;
    white-space: nowrap !important;
    border: 0 !important;
    background: transparent !important;
    color: transparent !important;
    text-decoration: none !important;
    font-weight: var(--font-weight-semibold, 600);
    z-index: -1 !important;
    opacity: 0 !important;
    visibility: hidden !important;
    pointer-events: none !important;
}

body > .skip-to-content:focus {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: auto !important;
    height: auto !important;
    padding: 0.75rem 1.5rem !important;
    margin: 0 !important;
    overflow: visible !important;
    clip: auto !important;
    clip-path: none !important;
    border-radius: 0 0 4px 0 !important;
    background: var(--color-primary, #2563eb) !important;
    color: #ffffff !important;
    opacity: 1 !important;
    visibility: visible !important;
    z-index: 10001 !important;
    pointer-events: auto !important;
    outline: 3px solid var(--color-primary-light, #dbeafe) !important;
    outline-offset: 2px !important;
}

/* Screen Reader Only - Texto oculto visualmente mas acessível a leitores de ecrã */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

:root {
    /* ============================================
       Cores Principais
       ============================================ */
    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-primary-active: #1e40af;
    --color-primary-light: #dbeafe;
    
    --color-secondary: #64748b;
    --color-secondary-hover: #475569;
    --color-secondary-dark: #334155;
    
    --color-accent: #10b981;
    --color-accent-hover: #059669;
    --color-accent-light: #d1fae5;
    
    /* Cores de Estado */
    --color-success: #10b981;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    --color-info: #3b82f6;
    
    /* Cores Neutras */
    --color-text: #1e293b;
    --color-text-secondary: #64748b;
    --color-text-tertiary: #94a3b8;
    --color-bg: #ffffff;
    --color-bg-secondary: #f8fafc;
    --color-bg-tertiary: #f1f5f9;
    --color-border: #e2e8f0;
    
    /* ============================================
       Tipografia
       ============================================ */
    --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    --font-heading: var(--font-family);
    
    /* Tamanhos */
    --font-size-base: 1rem;        /* 16px */
    --font-size-sm: 0.875rem;     /* 14px */
    --font-size-lg: 1.125rem;      /* 18px */
    
    --font-size-h1: 2.5rem;       /* 40px */
    --font-size-h2: 2rem;         /* 32px */
    --font-size-h3: 1.75rem;      /* 28px */
    --font-size-h4: 1.5rem;       /* 24px */
    --font-size-h5: 1.25rem;      /* 20px */
    --font-size-h6: 1rem;         /* 16px */
    
    /* Pesos */
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Line Heights */
    --line-height-tight: 1.2;
    --line-height-normal: 1.6;
    
    /* ============================================
       Espaçamentos
       ============================================ */
    --spacing-xs: 0.5rem;   /* 8px */
    --spacing-sm: 1rem;     /* 16px */
    --spacing-md: 2rem;     /* 32px */
    --spacing-lg: 3rem;     /* 48px */
    --spacing-xl: 4rem;     /* 64px */
    
    /* ============================================
       Breakpoints
       ============================================ */
    --breakpoint-sm: 576px;
    --breakpoint-md: 768px;
    --breakpoint-lg: 992px;
    --breakpoint-xl: 1200px;
    
    /* ============================================
       Outros
       ============================================ */
    --border-radius-sm: 0.25rem;
    --border-radius-md: 0.5rem;
    --box-shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --box-shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

body {
    font-family: var(--font-family);
    color: var(--color-text);
    line-height: var(--line-height-normal);
    font-size: var(--font-size-base);
    background-color: var(--color-bg);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* ============================================
   Typography
   ============================================ */

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-tight);
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
    letter-spacing: -0.02em;
}

h1 { 
    font-size: var(--font-size-h1);
    font-weight: var(--font-weight-bold);
}

h2 { 
    font-size: var(--font-size-h2);
    font-weight: var(--font-weight-bold);
}

h3 { 
    font-size: var(--font-size-h3);
    font-weight: var(--font-weight-semibold);
}

h4 { 
    font-size: var(--font-size-h4);
    font-weight: var(--font-weight-semibold);
}

h5 { 
    font-size: var(--font-size-h5);
    font-weight: var(--font-weight-semibold);
}

h6 { 
    font-size: var(--font-size-h6);
    font-weight: var(--font-weight-semibold);
}

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

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

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

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-medium);
    text-align: center;
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    line-height: 1.5;
}

/* CORREÇÃO ACESSIBILIDADE: Mudado de var(--color-accent) (#10b981 verde) 
   para var(--color-primary) (#2563eb azul) para melhor contraste WCAG AA
   - Verde sobre branco: ~2.3:1 (insuficiente)
   - Azul sobre branco: ~4.5:1 (suficiente para texto normal)
   - Azul sobre azul escuro (hero): ~4.8:1 (suficiente)
   REVERTER: Trocar var(--color-primary) por var(--color-accent) */
.btn-primary,
a.btn-primary,
a.btn-primary:visited,
a.btn-primary:link {
    background-color: var(--color-primary);
    color: #fff !important;
    border: none;
}

.btn-primary:hover,
a.btn-primary:hover {
    background-color: #ffffff;
    color: #1e293b !important;
    transform: translateY(-1px);
    box-shadow: var(--box-shadow-md);
}

.btn-secondary {
    background-color: var(--color-secondary);
    color: #fff;
}

.btn-secondary:hover {
    background-color: var(--color-secondary-hover);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: var(--box-shadow-md);
}

.btn-link {
    background: none;
    color: var(--color-text);
    padding: 0.5rem 1rem;
}

.btn-link:hover {
    color: var(--color-primary);
    background: none;
    transform: none;
    box-shadow: none;
}

.btn-large {
    padding: 1rem 2rem;
    font-size: var(--font-size-lg);
}

/* ============================================
   Header & Navigation
   ============================================ */

#main-header {
    background-color: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--box-shadow-sm);
}

.navbar {
    padding: 1rem 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    transition: var(--transition);
}

.logo-image {
    height: 48px;
    width: auto;
    display: block;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-primary);
}

.logo:hover {
    color: var(--color-primary-hover);
}

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

.nav-menu a {
    color: var(--color-text);
    font-weight: var(--font-weight-medium);
    padding: 0.5rem 0;
    transition: var(--transition);
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--color-primary);
}

.nav-actions {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

/* Mobile Menu Toggle (Hamburger) */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 30px;
    height: 22px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 1001;
}

.mobile-menu-toggle span {
    display: block;
    height: 3px;
    width: 100%;
    background: var(--color-text);
    border-radius: 3px;
    transition: all 0.3s ease;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -7px);
}

/* Mobile Navigation */
@media (max-width: 992px) {
    .mobile-menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        height: calc(100vh - 70px);
        background: white;
        flex-direction: column;
        align-items: flex-start;
        padding: 2rem;
        gap: 0;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
        transition: left 0.3s ease;
        z-index: 999;
        overflow-y: auto;
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-menu li {
        width: 100%;
        border-bottom: 1px solid var(--color-border);
    }

    .nav-menu a {
        display: block;
        padding: 1rem 0;
        width: 100%;
        font-size: 1.1rem;
    }

    .desktop-nav-actions {
        display: none;
    }

    .mobile-nav-actions {
        display: block;
        width: 100%;
        border-bottom: none !important;
    }

    .mobile-nav-actions .nav-actions {
        flex-direction: column;
        width: 100%;
        gap: 1rem;
        padding-top: 1rem;
        border-top: 1px solid var(--color-border);
        margin-top: 1rem;
    }

    .mobile-nav-actions .nav-actions .btn {
        width: 100%;
        text-align: center;
        justify-content: center;
    }
}

@media (min-width: 993px) {
    .mobile-nav-actions {
        display: none;
    }
}

@media (max-width: 768px) {
    .navbar .container {
        position: relative;
    }

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

    .hero-content {
        text-align: center;
    }

    .hero-cta {
        justify-content: center;
    }
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    padding: var(--spacing-xl) 0;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-active) 100%);
    color: #fff;
}

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

.hero-content h1 {
    color: #fff;
    font-size: var(--font-size-h1);
    margin-bottom: var(--spacing-sm);
    line-height: 1.1;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
    opacity: 0.95;
    line-height: 1.6;
    color: #ffffff;
}

.hero-cta {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

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

.placeholder-image {
    background-color: rgba(255, 255, 255, 0.1);
    padding: 4rem 2rem;
    border-radius: var(--border-radius-md);
    color: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(10px);
}

/* ============================================
   Features Overview
   ============================================ */

.features-overview {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg-secondary);
}

.section-title {
    text-align: center;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

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

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.feature-card {
    background-color: var(--color-bg);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    box-shadow: var(--box-shadow-sm);
    text-align: center;
    transition: var(--transition);
}

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

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.feature-card h3 {
    margin-bottom: var(--spacing-xs);
    color: var(--color-text);
}

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

/* ============================================
   Statistics
   ============================================ */

.statistics {
    padding: var(--spacing-lg) 0;
    background-color: var(--color-primary);
    color: #fff;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    text-align: center;
}

.stat-number {
    font-size: 3rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-xs);
    line-height: 1;
}

/* CORREÇÃO ACESSIBILIDADE: Removido opacity: 0.9 para melhorar contraste
   - Branco com opacity 0.9 sobre azul: ~4.0:1 (insuficiente para texto normal)
   - Branco sem opacity sobre azul: ~4.5:1 (suficiente para texto normal)
   REVERTER: Adicionar opacity: 0.9; */
.stat-label {
    font-size: var(--font-size-lg);
    opacity: 1;
}

/* ============================================
   Testimonials
   ============================================ */

.testimonials {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.testimonial-card {
    background-color: var(--color-bg-secondary);
    padding: var(--spacing-md);
    border-radius: var(--border-radius-md);
    border-left: 4px solid var(--color-primary);
}

.testimonial-text {
    font-style: italic;
    margin-bottom: var(--spacing-sm);
    color: var(--color-text);
}

.testimonial-author {
    font-weight: var(--font-weight-semibold);
    color: var(--color-text-secondary);
}

/* ============================================
   Final CTA
   ============================================ */

.final-cta {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg-secondary);
    text-align: center;
}

.final-cta h2 {
    margin-bottom: var(--spacing-sm);
}

.final-cta p {
    margin-bottom: var(--spacing-md);
    color: var(--color-text-secondary);
    font-size: var(--font-size-lg);
}

.cta-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   Page Header
   ============================================ */

.page-header {
    padding: var(--spacing-lg) 0;
    background-color: var(--color-bg-secondary);
    text-align: center;
}

.page-subtitle {
    color: var(--color-text-secondary);
    font-size: var(--font-size-lg);
}

/* Variante para páginas legais (Termos/Privacidade/Cookies) */
.page-header-legal {
    background: linear-gradient(135deg, #1e40af 0%, #2563eb 100%);
    color: #ffffff;
}

.page-header-legal h1 {
    color: #ffffff;
    font-weight: var(--font-weight-bold);
}

.page-header-legal .page-subtitle {
    color: #e5e7eb;
    opacity: 0.9;
}

/* ============================================
   Features Detail
   ============================================ */

.features-detail {
    padding: var(--spacing-xl) 0;
    background-color: var(--color-bg);
}

/* Reduzir padding superior na página de contactos */
.page-header-contact + .features-detail {
    padding-top: var(--spacing-md);
}

.card {
    background: var(--color-bg);
    border-radius: var(--border-radius-md);
    box-shadow: var(--box-shadow-md);
    padding: 2rem;
}

.card-legal {
    max-width: 960px;
    margin: 0 auto;
}

/* Espaçamentos específicos para títulos em páginas legais (para não colarem ao texto anterior) */
.card-legal h2 {
    margin-top: 2.25rem;
    margin-bottom: 1rem;
}

/* Reduzir margem superior do primeiro h2 na página de contactos */
.contact-grid .card-legal h2:first-child {
    margin-top: 0;
}

.card-legal h3 {
    margin-top: 1.75rem;
    margin-bottom: 0.85rem;
}

@media (max-width: 768px) {
    .card {
        padding: 1.5rem;
    }

    .card-legal h2 {
        margin-top: 1.75rem;
    }

    .card-legal h3 {
        margin-top: 1.25rem;
    }
}

/* Tabela usada em políticas (privacidade/cookies) */
.privacy-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    font-size: 0.9rem;
}

.privacy-table th,
.privacy-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid #e2e8f0;
}

.privacy-table th {
    background-color: #f8fafc;
    font-weight: var(--font-weight-semibold);
}

.privacy-table tbody tr:nth-child(even) {
    background-color: #f8fafc;
}

.privacy-table tbody tr:hover {
    background-color: #eff6ff;
}

@media (max-width: 768px) {
    .privacy-table {
        font-size: 0.8rem;
        overflow-x: auto;
        display: block;
        white-space: nowrap;
    }

    .privacy-table th,
    .privacy-table td {
        padding: 0.5rem;
        min-width: 120px;
    }
}

.feature-detail-item {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
    align-items: center;
    margin-bottom: var(--spacing-xl);
}

.feature-detail-item.reverse {
    direction: rtl;
}

.feature-detail-item.reverse > * {
    direction: ltr;
}

.feature-content h2 {
    margin-bottom: var(--spacing-sm);
}

.feature-list,
.feature-benefits {
    list-style: none;
    margin: var(--spacing-sm) 0;
}

.feature-list li,
.feature-benefits li {
    padding: var(--spacing-xs) 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--color-text);
}

.feature-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--color-primary);
    font-weight: var(--font-weight-bold);
}

.feature-benefit-text {
    margin-top: var(--spacing-sm);
    padding: var(--spacing-sm);
    background-color: var(--color-bg-secondary);
    border-left: 4px solid var(--color-primary);
    border-radius: var(--border-radius-sm);
}

/* ============================================
   CTA Section
   ============================================ */

.cta-section {
    padding: var(--spacing-lg) 0;
    background-color: var(--color-primary);
    color: #fff;
    text-align: center;
}

.cta-section h2 {
    color: #fff;
    margin-bottom: var(--spacing-sm);
}

.cta-section p {
    margin-bottom: var(--spacing-md);
    opacity: 0.95;
    color: rgba(255, 255, 255, 0.95);
}

.cta-section .btn-primary {
    background-color: #fff;
    color: var(--color-primary);
}

.cta-section .btn-primary:hover {
    background-color: #ffffff;
    color: #1e293b;
}

/* ============================================
   Footer
   ============================================ */

#main-footer {
    background-color: #1e293b;
    color: #fff;
    padding: var(--spacing-lg) 0 var(--spacing-md);
    margin-top: 0;
    overflow: hidden;
}

/* Reduzir espaçamento do footer quando está após register-section */
.register-section + #main-footer {
    margin-top: 0;
    padding-top: 3rem;
}

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

@media (min-width: 992px) {
    .footer-content {
        grid-template-columns: 3fr 2fr 2fr 3fr;
    }
}

.footer-section {
    margin-bottom: 2rem;
}

.footer-brand h4 {
    color: #bee0d6;
    margin-bottom: 1rem;
    font-size: 1.5rem;
    font-weight: 600;
}

.footer-brand p {
    color: #bee0d6;
    opacity: 0.9;
    line-height: 1.6;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.footer-logo-image {
    height: 56px;
    width: auto;
    display: block;
}

.footer-logo-text {
    font-size: 1.25rem;
    font-weight: var(--font-weight-bold);
    color: #bee0d6;
}

.footer-subtitle {
    color: #fff;
    margin-bottom: 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

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

.footer-section ul li {
    margin-bottom: 1rem;
    position: relative;
    display: inline-block;
    width: 100%;
}

.footer-section ul li::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    height: 2px;
    width: 0;
    background-color: var(--color-accent);
    transition: all 0.3s ease-in-out;
}

.footer-section ul li:hover::before {
    width: 100%;
}

.footer-section a {
    color: #bee0d6;
    transition: all 0.3s ease-in-out;
    text-decoration: none;
    font-size: 0.95rem;
    display: inline-block;
}

.footer-section a:hover {
    color: var(--color-accent);
}

/* Newsletter Form */
.footer-newsletter {
    max-width: 100%;
}

.newsletter-form {
    margin-top: 0.5rem;
}

.newsletter-input-group {
    display: flex;
    gap: 0.5rem;
    align-items: stretch;
}

.newsletter-input {
    flex: 1;
    padding: 0.875rem 1rem;
    border: 2px solid rgba(255, 255, 255, 0.1);
    border-radius: 0.5rem;
    background: rgba(255, 255, 255, 0.05);
    color: #fff;
    font-size: 0.95rem;
    transition: all 0.3s;
}

.newsletter-input::placeholder {
    color: rgba(190, 224, 214, 0.6);
}

.newsletter-input:focus {
    outline: none;
    border-color: var(--color-accent);
    background: rgba(255, 255, 255, 0.1);
}

.newsletter-btn {
    padding: 0.875rem 1.5rem;
    background: var(--color-accent);
    color: #fff;
    border: none;
    border-radius: 0.5rem;
    font-size: 1.25rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    white-space: nowrap;
    display: flex;
    align-items: center;
    justify-content: center;
}

.newsletter-btn:hover {
    background: var(--color-accent-hover);
    transform: translateX(2px);
}

.newsletter-message {
    margin-top: 0.75rem;
    padding: 0.75rem;
    border-radius: 0.5rem;
    font-size: 0.9rem;
}

.newsletter-message.success {
    background: rgba(16, 185, 129, 0.2);
    color: #10b981;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.newsletter-message.error {
    background: rgba(239, 68, 68, 0.2);
    color: #ef4444;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

/* Border & Social */
.footer-border {
    height: 1px;
    width: 100%;
    margin-bottom: 0.5rem;
    position: relative;
    background-color: rgba(255, 255, 255, 0.1);
    margin-top: 0.5rem;
}

.footer-border::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 20px;
    height: 6px;
    background-color: rgba(255, 255, 255, 0.1);
}

.social-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    padding-top: 0.75rem;
}

.soc-item {
    width: 40px;
    height: 40px;
    display: flex;
    justify-content: center;
    align-items: center;
    background: var(--color-accent);
    border-radius: 50%;
    position: relative;
    transition: all 0.3s ease;
}

.soc-item:hover {
    background: var(--color-accent-hover);
    transform: translateY(-3px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
}

.soc-item a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 100%;
    color: #fff;
    text-decoration: none;
}

.soc-item svg {
    width: 20px;
    height: 20px;
}

.soc-item.lvr-item {
    background: #fff;
}

/* CORREÇÃO ACESSIBILIDADE: Mudado de var(--color-accent) (#10b981 verde)
   para var(--color-primary) (#2563eb azul) para melhor contraste sobre branco
   - Verde sobre branco: ~2.3:1 (insuficiente)
   - Azul sobre branco: ~4.5:1 (suficiente para texto normal)
   REVERTER: Trocar var(--color-primary) por var(--color-accent) */
.soc-item.lvr-item a {
    color: var(--color-primary);
    font-weight: 600;
    font-size: 0.875rem;
}

.soc-item.lvr-item:hover {
    background: #f0f0f0;
}

.lvr-text {
    font-size: 0.875rem;
    font-weight: 600;
}

/* Copyright */
.footer-bottom {
    text-align: center;
    padding-top: var(--spacing-md);
    margin-top: 1.5rem;          /* afasta dos ícones */
    color: #ffffff;            /* branco */
    opacity: 1;                /* texto bem legível */
}

.footer-bottom p {
    margin: 0;
    font-size: 0.9rem;
    color: #f0f0f0;   
}

/* ============================================
   Contact Page
   ============================================ */

.contact-form {
    max-width: 100%;
    margin: 0;
    background: transparent;
    padding: 0;
    border-radius: 0;
    box-shadow: none;
}

/* Form Group */
.form-group {
    position: relative;
    margin-bottom: 1.75rem;
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: 1rem;
    border: 1px solid #d1d5db;
    border-radius: var(--border-radius-md, 0.75rem);
    font-size: 1rem;
    font-family: var(--font-family);
    background-color: #ffffff;
    color: var(--color-text, #111827);
    transition: all 0.2s ease;
    appearance: none;
    -webkit-appearance: none;
    -moz-appearance: none;
}

.form-input::placeholder,
.form-textarea::placeholder {
    color: #9ca3af;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--color-primary, #6366f1);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
    background-color: #ffffff;
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

.form-select {
    padding-right: 2.5rem;
    cursor: pointer;
}

.form-select option:disabled {
    color: #9ca3af;
}

.form-select-arrow {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    pointer-events: none;
    color: var(--color-text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.form-input-floating:focus ~ .form-select-arrow,
.form-select-floating:focus ~ .form-select-arrow {
    color: var(--color-primary);
}

/* Form Group tradicional (para botão) */
.form-group {
    margin-bottom: 1.5rem;
}

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

.form-check {
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
    margin-top: 1rem;
}

.form-check input {
    width: auto;
    margin-top: 0.25rem;
}

.form-check label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.contact-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.contact-info-item {
    text-align: center;
    padding: 1.5rem;
    background: var(--color-bg-secondary);
    border-radius: 0.5rem;
}

.contact-form-container {
    flex: 1;
    min-width: 0;
}

.contact-info-container {
    flex: 0 0 350px;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    margin-top: 0;
}

.contact-info-container {
    flex: 1;
}

.contact-form .required {
    color: var(--color-error);
}

.contact-form .form-error {
    display: none;
    color: var(--color-error);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.contact-form .form-error:not(:empty) {
    display: block;
}

.contact-form .form-message {
    padding: 1rem;
    border-radius: var(--border-radius-md);
    margin-top: 1rem;
    font-weight: 500;
}

.contact-form .form-message.success {
    background-color: var(--color-accent-light);
    color: var(--color-accent-hover);
    border: 1px solid var(--color-accent);
}

.contact-form .form-message.error {
    background-color: #fee2e2;
    color: var(--color-error);
    border: 1px solid var(--color-error);
}

.btn-submit {
    width: 100%;
    padding: 1rem 1.5rem;
    background-color: var(--color-primary);
    color: #ffffff;
    font-weight: var(--font-weight-semibold);
    font-size: var(--font-size-lg);
    border: none;
    border-radius: var(--border-radius-md, 0.75rem);
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-submit:hover:not(:disabled) {
    background-color: var(--color-primary-hover);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
    transform: translateY(-1px);
}

.btn-submit:active:not(:disabled) {
    transform: scale(0.98);
}

.btn-submit:focus {
    outline: none;
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.3);
}

.contact-form button[type="submit"]:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

.contact-info-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin-top: 1.5rem;
}

@media (max-width: 992px) {
    .contact-info-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .contact-info-grid {
        grid-template-columns: 1fr;
    }
}

.contact-info-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.75rem;
    padding: 1rem;
    background-color: var(--color-bg-secondary);
    border-radius: var(--border-radius-md);
    border: 1px solid var(--color-border);
    transition: var(--transition, all 0.3s ease);
}

.contact-info-item:hover {
    box-shadow: var(--box-shadow-sm);
    border-color: var(--color-primary-light);
}

.contact-info-icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    border-radius: var(--border-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
}

.contact-info-content {
    width: 100%;
}

.contact-info-content h3 {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: 0.4rem;
}

.contact-info-content p {
    color: var(--color-text-secondary);
    margin: 0;
    line-height: 1.5;
    font-size: 0.875rem;
}

.contact-info-content a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.2s ease;
}

.contact-info-content a:hover {
    color: var(--color-primary-hover);
    text-decoration: underline;
}

.contact-info-item h4 {
    margin-bottom: 0.5rem;
    color: var(--color-primary);
}

/* Responsive */
@media (max-width: 991px) {
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--spacing-md);
    }
    
    .footer-newsletter {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .footer-section {
        margin-bottom: 2rem;
    }
    
    .newsletter-input-group {
        flex-direction: column;
    }
    
    .newsletter-btn {
        width: 100%;
    }
}

/* ============================================
   Responsive
   ============================================ */

@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .nav-menu {
        flex-direction: column;
        text-align: center;
        gap: var(--spacing-sm);
        width: 100%;
    }
    
    .nav-actions {
        width: 100%;
        justify-content: center;
    }
    
    .hero .container {
        grid-template-columns: 1fr;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: var(--font-size-base);
    }
    
    .feature-detail-item {
        grid-template-columns: 1fr;
    }
    
    .feature-detail-item.reverse {
        direction: ltr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    :root {
        --font-size-h1: 2rem;
        --font-size-h2: 1.75rem;
        --font-size-h3: 1.5rem;
    }
    
    .hero {
        padding: var(--spacing-lg) 0;
    }
    
    .hero-content h1 {
        font-size: 1.75rem;
    }
    
    .cta-buttons {
        flex-direction: column;
    }
    
    .cta-buttons .btn {
        width: 100%;
    }
}

/* AJAX Navigation Loading States */
.ajax-loading {
    opacity: 0.6 !important;
    transition: opacity 0.2s ease !important;
    pointer-events: none;
}

.ajax-content-hidden {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
    height: 0 !important;
    overflow: hidden !important;
}

.ajax-content-visible {
    display: block !important;
    visibility: visible !important;
    opacity: 1 !important;
    height: auto !important;
    overflow: visible !important;
}

/* Smooth transitions for AJAX content */
section:not(#main-header):not(#main-footer) {
    transition: opacity 0.3s ease;
}

/* Loading Screen */
#ajax-loading-screen {
    position: fixed !important;
    top: 0 !important;
    left: 0 !important;
    width: 100% !important;
    height: 100% !important;
    background: rgba(255, 255, 255, 0.3) !important;
    backdrop-filter: blur(8px) !important;
    -webkit-backdrop-filter: blur(8px) !important;
    z-index: 99999 !important;
    display: none !important;
    align-items: center !important;
    justify-content: center !important;
    flex-direction: column !important;
}

#ajax-loading-screen[style*="flex"] {
    display: flex !important;
}

#ajax-loading-spinner {
    width: 50px !important;
    height: 50px !important;
    border: 4px solid #f3f3f3 !important;
    border-top: 4px solid #2563eb !important;
    border-radius: 50% !important;
    animation: ajax-spin 1s linear infinite !important;
}

@keyframes ajax-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

#ajax-loading-text {
    margin-top: 20px !important;
    color: #666 !important;
    font-size: 16px !important;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif !important;
}

/* ============================================
   FAQ Page
   ============================================ */

.faq-section {
    padding: 4rem 0;
}

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

.faq-category {
    margin-bottom: 4rem;
}

.faq-category:last-child {
    margin-bottom: 0;
}

.faq-category-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--color-primary);
}

.faq-category-header i {
    font-size: 2rem;
    color: var(--color-primary);
}

.faq-category-header h2 {
    margin: 0;
    font-size: 2rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-text);
}

.faq-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    width: 100%;
}

/* Garantir que o grid funciona em todos os browsers */
@supports (display: grid) {
    .faq-grid {
        display: grid;
    }
}

.faq-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--border-radius-md, 0.75rem);
    box-shadow: var(--box-shadow-sm);
    overflow: hidden;
    transition: all 0.3s ease;
    cursor: pointer;
}

.faq-card:hover {
    box-shadow: var(--box-shadow-md);
    border-color: var(--color-primary-light);
    transform: translateY(-2px);
}

.faq-card.active {
    border-color: var(--color-primary);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.15);
}

.faq-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    background: var(--color-bg);
    transition: background-color 0.3s ease;
    cursor: pointer;
    user-select: none;
}

.faq-card.active .faq-card-header {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.05) 0%, rgba(37, 99, 235, 0.02) 100%);
}

.faq-question {
    margin: 0;
    font-size: 1.1rem;
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
    flex: 1;
    padding-right: 1rem;
    line-height: 1.5;
}

.faq-icon {
    font-size: 0.875rem;
    color: var(--color-primary);
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease, padding 0.3s ease;
    padding: 0 1.5rem;
}

.faq-card.active .faq-answer {
    padding: 0 1.5rem 1.5rem 1.5rem;
}

.faq-answer p {
    margin: 0;
    color: var(--color-text-secondary);
    line-height: 1.7;
    font-size: 1rem;
}

@media (max-width: 768px) {
    .faq-grid {
        grid-template-columns: 1fr;
    }
    
    .faq-category-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
    }
    
    .faq-category-header i {
        font-size: 1.5rem;
    }
    
    .faq-category-header h2 {
        font-size: 1.5rem;
    }
    
    .faq-question {
        font-size: 1rem;
    }
}