/* ============================================
   VARIÁVEIS GLOBAIS & RESET
   ============================================ */

:root {
    /* Cores Principais - Header */
    --header-primary: #4a6cf7;
    --header-primary-dark: #1a237e;
    --header-secondary: #283593;
    --header-accent: #0078ff;
    --header-cta: #ff6a00;
    --header-cta-hover: #e05a00;
    --header-user-menu: linear-gradient(135deg, #6b440a, #7f500e);
    --header-user-menu-hover: linear-gradient(135deg, #7f500e, #9a6111);
    
    /* Gradientes Profissionais */
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --success-gradient: linear-gradient(135deg, #11998e 0%, #38ef7d 100%);
    --warning-gradient: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --info-gradient: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --accessibility-gradient: linear-gradient(135deg, #F39C12, #E67E22);
    
    /* Tons de Texto */
    --text-light: #fff;
    --text-dark: #333;
    --text-muted: #ddd;
    --text-accent: #0070cc;
    
    /* Fundos */
    --bg-white: #fff;
    --bg-light: #f8f9fa;
    --bg-hover: #f0f8ff;
    --bg-header-top: linear-gradient(90deg, #1a237e, #283593);
    
    /* Sombras */
    --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 15px 40px rgba(0, 0, 0, 0.15);
    --shadow-medium: 0 4px 12px rgba(0,0,0,0.15);
    --shadow-strong: 0 10px 30px rgba(0, 0, 0, 0.15);
    
    /* Bordas */
    --border-radius: 0px;
    --border-radius-sm: 4px;
    --border-radius-md: 8px;
    --border-radius-lg: 20px;
    --border-radius-circle: 50%;
    
    /* Transições */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.2s ease;
    --transition-slow: all 0.5s ease;
}

/* ============================================
   RESET & CONFIGURAÇÕES BASE
   ============================================ */

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

html, body { 
    overflow-x: hidden; 
    width: 100%;
    margin: 0;
    padding: 0;
    font-family: 'Poppins', sans-serif;
}

body { 
    margin-top: 80px; /* espaço para o header fixo */
    padding: 0;
}

/* ============================================
   ANIMAÇÕES & KEYFRAMES
   ============================================ */

@keyframes slideDown {
    from { 
        opacity: 0; 
        transform: translateY(-10px); 
    }
    to { 
        opacity: 1; 
        transform: translateY(0); 
    }
}

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

/* ============================================
   CLASSES DE ESTILOS INLINE EXTRADAS
   ============================================ */

.header-inline-1 {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text-light);
    font-family: 'Poppins', sans-serif;
}

.header-inline-2 {
    height: 50px;
    border-radius: var(--border-radius-md);
}

.header-inline-3 {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    line-height: 1;
}

.header-inline-4 {
    font-weight: 700;
    font-size: 1.4em;
    letter-spacing: -0.5px;
}

.header-inline-5 {
    color: var(--header-accent);
}

.header-inline-6 {
    font-size: 0.6em;
    color: var(--text-muted);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.fade-in {
    animation: fadeIn 0.8s ease-out;
}

/* ============================================
   BARRA DE PROGRESSO DE LEITURA
   ============================================ */

.reading-progress {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: var(--header-primary);
    z-index: 99999;
    transition: width 0.1s;
}

/* ============================================
   HEADER PRINCIPAL - ALIBABA STYLE
   ============================================ */

/* Top Bar - Central com Parceiros */
.alibaba-top-bar {
    background: var(--bg-header-top);
    padding: 8px 0;
    font-size: 12px;
    color: var(--text-light);
    display: block;
    position: relative;
}

.top-bar-container,
.main-nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    width: 100%;
    box-sizing: border-box;
}

.top-bar-links {
    display: flex;
    align-items: center;
    gap: 20px;
}

.top-bar-links a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: var(--transition-fast);
    margin-right: 15px;
}

.top-bar-links a:hover {
    color: var(--text-light);
    transform: translateY(-1px);
}

.top-bar-country {
    display: flex;
    align-items: center;
    gap: 6px;
    color: rgba(255, 255, 255, 0.9);
}

/* Main Navigation */
.alibaba-main-nav {
    padding: 12px 0;
}

.alibaba-logo-container {
    flex: 0 0 auto;
    margin-right: 30px;
}

.alibaba-logo {
    height: 60px;
    display: block;
    position: relative;
}

.alibaba-logo img {
    width: 180px;
    height: 60px;
    object-fit: contain;
}

.alibaba-header.scrolled .logo-white {
    opacity: 0;
}

.alibaba-header.scrolled .logo-color {
    opacity: 1;
}

/* Menu de Navegação */
.alibaba-nav-menu-container {
    flex: 1;
    display: flex;
    justify-content: center;
}

.alibaba-nav-item {
    position: relative;
}

.alibaba-nav-link:hover,
.alibaba-header.scrolled .alibaba-nav-link:hover {
    color: var(--text-accent);
    background: rgba(0, 112, 204, 0.05);
}

.alibaba-nav-link.active {
    color: var(--header-primary) !important;
    font-weight: 600 !important;
    background: transparent !important;
    border-left: none !important;
    padding-left: 12px !important;
}

.alibaba-header.scrolled .alibaba-nav-link.active {
    color: var(--text-accent) !important;
    background: transparent !important;
}

.alibaba-nav-link.active:hover {
    color: var(--text-accent) !important;
    background: rgba(0, 112, 204, 0.05) !important;
}

/* Dropdown Menu */
.alibaba-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--bg-white);
    min-width: 200px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-medium);
    padding: 8px 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: var(--transition-fast);
    z-index: 1000;
    pointer-events: none;
    display: block !important;
}

.alibaba-nav-item:hover .alibaba-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
}

.alibaba-nav-item:last-child .alibaba-dropdown-menu {
    left: auto;
    right: 0;
}

.alibaba-dropdown-item {
    display: block;
    padding: 6px 20px;
    color: var(--text-dark);
    text-decoration: none;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition-fast);
}

.alibaba-dropdown-item:hover {
    background: var(--bg-hover);
    color: var(--text-accent);
}

.alibaba-dropdown-divider {
    height: 1px;
    background: #eee;
    margin: 4px 0;
}

/* CTA e Menu do Usuário */
.alibaba-cta {
    flex: 0 0 auto;
    margin-left: 30px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.alibaba-signup-btn {
    background: var(--header-cta);
    color: var(--text-light);
    border: none;
    padding: 6px 16px;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.alibaba-signup-btn:hover {
    background: var(--header-cta-hover);
}

.alibaba-user-menu {
    color: var(--text-light);
    text-decoration: none;
    font-size: 14px;
    display: flex;
    align-items: center;
    gap: 4px;
    white-space: nowrap;
}

.user-menu {
    background: var(--header-user-menu) !important;
    color: var(--text-light) !important;
    padding: 6px 15px !important;
    border-radius: 25px !important;
    margin-left: 10px !important;
    font-weight: 600 !important;
}

.user-menu:hover {
    background: var(--header-user-menu-hover) !important;
    color: var(--text-light) !important;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(139, 92, 15, 0.3);
}

.alibaba-header.scrolled .alibaba-user-menu {
    color: var(--text-dark);
}

.alibaba-user-menu:hover,
.alibaba-header.scrolled .alibaba-user-menu:hover {
    color: var(--text-accent);
}

/* Hamburger Menu para Mobile */
.alibaba-hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    padding: 5px;
    background: none;
    border: none;
    outline: none;
}

.alibaba-hamburger span {
    width: 20px;
    height: 2px;
    background: var(--text-light);
    margin: 2px 0;
    transition: 0.3s;
    display: block;
}

.alibaba-header.scrolled .alibaba-hamburger span {
    background: var(--text-dark);
}

/* ============================================
   STICKY PANEL & ÍCONES FLUTUANTES
   ============================================ */

/* Items do Sticky Panel */
.sticky-icon-item {
    position: relative;
    display: flex;
    align-items: center;
    flex-shrink: 0;
    margin: 0;
    height: 50px;
}

.sticky-icon-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    text-decoration: none;
    font-size: 18px;
    color: #555;
    background: var(--bg-white);
    transition: var(--transition-fast);
    position: relative;
    z-index: 2;
    cursor: pointer;
}

.icon-text-link {
    position: absolute;
    left: 50px;
    right: 0;
    top: 0;
    height: 50px;
    text-decoration: none;
    cursor: pointer;
    z-index: 1;
    display: flex;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-fast);
    padding-left: 0;
    background: var(--bg-white);
}

.icon-text {
    color: #000000;
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
    padding-left: 10px;
    transition: var(--transition-fast);
}

.sticky-icon-item:hover .sticky-icon-link {
    background-color: #e6f0ff;
    color: #1a73e8;
}

.sticky-icon-item:hover .icon-text-link {
    background-color: #e6f0ff;
}

.sticky-icon-item:hover .icon-text {
    color: #000000;
}

.sticky-panel-content.expanded .icon-text-link {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
}

.icon-divider {
    position: absolute;
    bottom: 0;
    left: 10px;
    right: 10px;
    height: 1px;
    background-color: #f0f0f0;
    z-index: 3;
}

.sticky-icon-item:last-child .icon-divider {
    display: none;
}

/* Botão Voltar ao Topo */
.back-to-top-container {
    height: 0;
    overflow: hidden;
    transition: height 0.3s ease;
}

.back-to-top-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--bg-white);
    color: #555;
    font-size: 18px;
    cursor: pointer;
    transition: var(--transition-fast);
    position: relative;
    z-index: 2;
    border: none;
    outline: none;
    padding: 0;
    margin: 0;
}

.back-to-top-text {
    position: absolute;
    left: 50px;
    right: 0;
    top: 0;
    height: 50px;
    display: flex;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-fast);
    padding-left: 10px;
    background: var(--bg-white);
    color: #000000;
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
}

.back-to-top-container.show {
    height: 50px;
}

.back-to-top-wrapper {
    display: flex;
    align-items: stretch;
    width: 100%;
    height: 50px;
}

.back-to-top-btn {
    flex: 0 0 50px;
    width: 50px;
    height: 100%;
}

.back-to-top-text {
    flex: 1;
    position: static;
    left: auto;
    right: auto;
    top: auto;
    height: 100%;
    display: flex;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    text-decoration: none;
}

.sticky-panel-content.expanded .back-to-top-text {
    opacity: 1;
    visibility: visible;
}

.back-to-top-wrapper:hover .back-to-top-btn {
    background-color: #e6f0ff;
    color: #1a73e8;
}

.back-to-top-wrapper:hover .back-to-top-text {
    background-color: #e6f0ff;
}

.back-to-top-wrapper:hover .back-to-top-btn i {
    color: #1a73e8;
    transition: color 0.15s ease;
}

/* Ícone do Chatbot no Sticky Panel */
.chatbot-icon-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    background: var(--bg-white);
    color: #555;
    font-size: 18px;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    z-index: 2;
    border: none;
    outline: none;
    padding: 0;
    margin: 0;
}

.chatbot-icon-text {
    position: absolute;
    left: 50px;
    right: 0;
    top: 0;
    height: 50px;
    display: flex;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-fast);
    padding-left: 10px;
    background: var(--bg-white);
    color: #000000;
    font-size: 14px;
    font-weight: 500;
    white-space: nowrap;
    text-decoration: none;
    cursor: pointer;
}

.chatbot-sticky-wrapper {
    display: flex;
    align-items: stretch;
    width: 100%;
    height: 50px;
}

.chatbot-icon-btn {
    flex: 0 0 50px;
    width: 50px;
    height: 100%;
}

.chatbot-icon-text {
    flex: 1;
    position: static;
    left: auto;
    right: auto;
    top: auto;
    height: 100%;
    display: flex;
    align-items: center;
    opacity: 0;
    visibility: hidden;
}

.chatbot-sticky-wrapper:hover .chatbot-icon-btn {
    background-color: #e6f0ff;
    color: var(--header-primary);
}

.chatbot-sticky-wrapper:hover .chatbot-icon-text {
    background-color: #e6f0ff;
}

.sticky-panel-content.expanded .chatbot-icon-text {
    opacity: 1;
    visibility: visible;
}

/* ============================================
   CHATBOT WINDOW
   ============================================ */

.chat-window {
    position: fixed;
    bottom: 60px;
    right: 25px;
    width: 380px;
    height: 600px;
    max-height: 85vh;
    background: var(--bg-light);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-strong);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transform: scale(0.5);
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
    transform-origin: bottom right;
    z-index: 2000;
    pointer-events: none;
}

.chat-window.open {
    transform: scale(1);
    opacity: 1;
    pointer-events: auto;
}

.chat-header {
    padding: 15px 20px;
    background: var(--header-primary);
    color: var(--text-light);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    position: relative;
}

.chat-close-btn {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-light);
    font-size: 1.5rem;
    cursor: pointer;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--border-radius-circle);
    transition: var(--transition);
    z-index: 2002;
}

.chat-close-btn:hover {
    background: rgba(255,255,255,0.2);
    transform: translateY(-50%) scale(1.1);
}

.chat-title {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
}

.chat-title h3 {
    margin: 0;
    font-size: 16px;
    font-weight: 600;
}

.chat-subtitle {
    font-size: 11px;
    font-style: italic;
    color: var(--text-light);
    margin-top: 2px;
}

/* ============================================
   HEADER PROFISSIONAL
   ============================================ */

.professional-header {
    background: var(--primary-gradient);
    padding: 2.5rem;
    margin-bottom: 0;
    color: var(--text-light);
    box-shadow: var(--shadow-soft);
    position: relative;
    overflow: hidden;
    text-align: center;
}

.professional-header::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 200px;
    height: 200px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--border-radius-circle);
    transform: translate(50px, -50px);
}

.professional-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    text-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.professional-header .subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 1rem;
}

/* Breadcrumb Professional */
.breadcrumb-professional {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50px;
    padding: 0.75rem 1.5rem;
    backdrop-filter: blur(10px);
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.breadcrumb-professional a {
    color: rgba(255, 255, 255, 0.9);
    text-decoration: none;
    transition: var(--transition);
}

.breadcrumb-professional a:hover {
    color: var(--text-light);
    transform: translateY(-1px);
}

/* Status Badge Professional */
.status-badge-professional {
    background: rgba(255, 255, 255, 0.2);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    backdrop-filter: blur(10px);
    margin-bottom: 1rem;
}

/* ============================================
   ACESSIBILIDADE - ÍCONE FIXO
   ============================================ */

.accessibility-icon-container {
    position: fixed;
    bottom: 120px;
    right: 30px;
    z-index: 1001;
}

.accessibility-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: var(--accessibility-gradient);
    border-radius: var(--border-radius-circle);
    color: var(--text-light);
    text-decoration: none;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    transition: var(--transition);
    position: relative;
}

.accessibility-icon i {
    font-size: 1.8rem;
    transition: transform 0.3s ease;
}

.accessibility-badge {
    position: absolute;
    right: 70px;
    background: rgba(243, 156, 18, 0.95);
    color: var(--text-light);
    padding: 8px 15px;
    border-radius: 25px;
    font-size: 0.9rem;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    transform: translateX(10px);
    transition: var(--transition);
    pointer-events: none;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

.accessibility-icon:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 25px rgba(0, 0, 0, 0.4);
}

.accessibility-icon:hover i {
    transform: rotate(15deg);
}

.accessibility-icon:hover .accessibility-badge {
    opacity: 1;
    transform: translateX(0);
}

.vw-plugin-top-wrapper {
    z-index: 1000 !important;
}

/* ============================================
   RESPONSIVIDADE - MOBILE & TABLET
   ============================================ */

@media (max-width: 992px) {
    .alibaba-nav-menu-container {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--bg-white);
        padding: 15px;
        box-shadow: 0 10px 15px rgba(0,0,0,0.1);
        z-index: 1001;
        flex-direction: column;
        max-height: 80vh;
        overflow-y: auto;
        box-sizing: border-box;
    }
    
    .alibaba-mobile-menu-open .alibaba-nav-menu-container {
        display: flex !important;
        animation: slideDown 0.3s ease;
    }

    .alibaba-nav-menu {
        flex-direction: column;
        gap: 0;
        width: 100%;
    }

    .alibaba-nav-link {
        color: var(--text-dark) !important;
        padding: 15px 0;
        border-bottom: 1px solid #eee;
        width: 100%;
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .alibaba-cta {
        display: flex;
        align-items: center;
    }
    
    .alibaba-cta > a, .alibaba-cta > .alibaba-nav-item {
        display: none;
    }

    .alibaba-hamburger {
        display: flex !important;
        margin-left: 15px;
    }

    .mobile-only-cta {
        display: flex;
        flex-direction: column;
        gap: 10px;
        margin-top: 20px;
        padding-top: 20px;
        border-top: 2px solid #eee;
    }
    
    .alibaba-mobile-menu-open .alibaba-dropdown-menu {
        position: static !important;
        display: none !important;
        opacity: 1 !important;
        visibility: visible !important;
        box-shadow: none;
        background: #f9f9f9;
        padding-left: 20px;
        transform: none !important;
    }

    .alibaba-nav-item.dropdown-open .alibaba-dropdown-menu {
        display: block !important;
    }
}

@media (max-width: 768px) {
    .alibaba-main-nav {
        padding: 8px 0;
    }
    
    .alibaba-logo {
        height: 30px;
    }
    
    .alibaba-logo img {
        width: auto;
        height: 30px;
    }
    
    .professional-header {
        padding: 2rem 1.5rem;
    }
    
    .professional-header h1 {
        font-size: 2rem;
    }
    
    .professional-header::before {
        width: 150px;
        height: 150px;
    }
    
    .accessibility-icon-container {
        bottom: 110px;
        right: 20px;
    }
    
    .accessibility-icon {
        width: 55px;
        height: 55px;
        border-radius: 10px;
    }
    
    .accessibility-badge {
        font-size: 0.8rem;
        padding: 6px 12px;
    }
    
    /* Sticky Panel Mobile */
    .alibaba-sticky-panel {
        display: block !important;
        bottom: 100px;
    }
    
    .sticky-panel-content {
        width: 45px;
    }
    
    .sticky-panel-content.expanded {
        width: 160px;
    }
    
    .sticky-icon-item {
        height: 45px;
    }
    
    .sticky-icon-link {
        width: 45px;
        height: 45px;
        font-size: 16px;
    }
    
    .icon-text-link {
        height: 45px;
        left: 45px;
    }
    
    .icon-text {
        font-size: 13px;
        padding-left: 8px;
    }
    
    .back-to-top-container {
        height: 0;
    }
    
    .back-to-top-container.show {
        height: 45px;
    }
    
    .back-to-top-btn {
        width: 45px;
        height: 45px;
        font-size: 16px;
    }
    
    .back-to-top-text {
        height: 45px;
        left: 45px;
        font-size: 13px;
    }
    
    .chatbot-sticky-wrapper {
        height: 45px;
    }
    
    .chatbot-icon-btn {
        flex: 0 0 45px;
        width: 45px;
        font-size: 16px;
    }
    
    .chatbot-icon-text {
        font-size: 13px;
        padding-left: 8px;
    }
}

@media (max-width: 480px) {
    .top-bar-links {
        gap: 10px;
    }
    
    .top-bar-links a {
        margin-right: 8px;
        font-size: 11px;
    }
    
    .chat-window {
        width: 95vw;
        right: 2.5vw;
    }
}