/* ==========================================================================
   CENTERCHAT - Design System & Estilos Modernos
   Versão 2.0 (High Conversion, Performance, Accessible & Responsive)
   ========================================================================== */

:root {
    /* Cores Oficiais e Brand WhatsApp */
    --wa-green: #25D366;
    --wa-teal: #128C7E;
    --wa-teal-dark: #075E54;
    --wa-emerald: #00A884;
    --wa-light-green: #DCF8C6;
    --wa-chat-bg: #EFEAE2;

    /* Gradientes e Acentos */
    --grad-primary: linear-gradient(135deg, #128C7E 0%, #25D366 100%);
    --grad-dark: linear-gradient(135deg, #0F172A 0%, #1E293B 100%);
    --grad-hero: linear-gradient(180deg, #F0FDF4 0%, #FFFFFF 100%);
    --grad-glow: radial-gradient(circle, rgba(37, 211, 102, 0.15) 0%, rgba(255, 255, 255, 0) 70%);

    /* Cores de Interface */
    --bg-page: #FFFFFF;
    --bg-surface: #F8FAFC;
    --bg-surface-elevated: #FFFFFF;
    --bg-dark: #0B132B;
    --bg-dark-card: #1E293B;

    /* Tipografia e Textos */
    --text-primary: #0F172A;
    --text-secondary: #475569;
    --text-muted: #64748B;
    --text-light: #F8FAFC;
    --text-inverse: #FFFFFF;

    /* Bordas e Sombras */
    --border-subtle: #E2E8F0;
    --border-focus: #128C7E;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
    --radius-full: 9999px;

    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 8px 24px -4px rgba(15, 23, 42, 0.08);
    --shadow-lg: 0 16px 36px -6px rgba(15, 23, 42, 0.12);
    --shadow-glow: 0 12px 30px rgba(37, 211, 102, 0.35);

    /* Transições */
    --transition: all 0.28s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset Global */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    font-size: 16px;
}

body {
    font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    color: var(--text-primary);
    background-color: var(--bg-page);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img, svg {
    display: block;
    max-width: 100%;
}

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

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul, ol {
    list-style: none;
}

.container {
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ==========================================================================
   Barra Superior de Aviso / Anúncio
   ========================================================================== */
.top-announcement {
    background: var(--wa-teal-dark);
    color: #FFFFFF;
    font-size: 0.85rem;
    padding: 8px 16px;
    text-align: center;
    font-weight: 500;
}

.top-announcement a {
    color: var(--wa-green);
    font-weight: 700;
    text-decoration: underline;
    margin-left: 6px;
}

.top-announcement a:hover {
    color: #FFFFFF;
}

/* ==========================================================================
   Header & Navegação Fixa com Glassmorphism
   ========================================================================== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.94);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-subtle);
    transition: var(--transition);
}

.site-header.is-scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: var(--shadow-sm);
    padding: 4px 0;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 76px;
}

.brand-logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.brand-logo img {
    height: 44px;
    width: auto;
    object-fit: contain;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 28px;
}

.nav-link {
    font-size: 0.93rem;
    font-weight: 600;
    color: var(--text-secondary);
    position: relative;
    padding: 6px 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0%;
    height: 2px;
    background: var(--wa-green);
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--wa-teal);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.btn-header-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--grad-primary);
    color: #FFFFFF;
    font-size: 0.9rem;
    font-weight: 700;
    padding: 10px 22px;
    border-radius: var(--radius-full);
    box-shadow: 0 4px 14px rgba(37, 211, 102, 0.3);
    transition: var(--transition);
}

.btn-header-cta:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 38px;
    height: 38px;
    padding: 4px;
}

.menu-toggle span {
    display: block;
    width: 100%;
    height: 3px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: var(--transition);
}

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

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

.menu-toggle.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(4px);
    z-index: 998;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}

.menu-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
    position: relative;
    background: var(--grad-hero);
    padding: 60px 0 70px;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 500px;
    height: 500px;
    background: var(--grad-glow);
    pointer-events: none;
    z-index: 0;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.15fr 0.95fr;
    gap: 50px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: #DCFCE7;
    color: #166534;
    border: 1px solid #86EFAC;
    padding: 6px 16px;
    border-radius: var(--radius-full);
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.hero-title {
    font-size: clamp(2.2rem, 4.4vw, 3.4rem);
    font-weight: 900;
    line-height: 1.18;
    color: var(--text-primary);
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

.hero-title .text-gradient {
    background: var(--grad-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline;
}

.hero-subtitle {
    font-size: clamp(1.05rem, 1.8vw, 1.25rem);
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 32px;
    max-width: 600px;
}

.hero-ctas {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: center;
    margin-bottom: 30px;
}

.btn-primary-cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    background: var(--grad-primary);
    color: #FFFFFF;
    font-size: 1.1rem;
    font-weight: 800;
    padding: 16px 36px;
    border-radius: var(--radius-full);
    box-shadow: 0 10px 25px rgba(37, 211, 102, 0.4);
    transition: var(--transition);
    position: relative;
}

.btn-primary-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 32px rgba(37, 211, 102, 0.55);
}

.btn-primary-cta svg {
    width: 24px;
    height: 24px;
    fill: #FFFFFF;
}

.btn-secondary-cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: #FFFFFF;
    color: var(--text-primary);
    font-size: 1rem;
    font-weight: 700;
    padding: 15px 28px;
    border-radius: var(--radius-full);
    border: 2px solid var(--border-subtle);
    transition: var(--transition);
}

.btn-secondary-cta:hover {
    border-color: var(--wa-teal);
    color: var(--wa-teal);
    background: var(--bg-surface);
}

.hero-checkpoints {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin-top: 15px;
}

.checkpoint-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.checkpoint-item svg {
    width: 18px;
    height: 18px;
    color: var(--wa-green);
    fill: currentColor;
}

/* Visual Mockup & Floating Badges */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
}

.hero-visual-frame {
    position: relative;
    width: 100%;
    max-width: 580px;
}

.hero-main-img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-md);
    filter: drop-shadow(0 20px 35px rgba(0, 0, 0, 0.12));
    transition: transform 0.4s ease;
}

.hero-main-img:hover {
    transform: scale(1.02);
}

/* Floating Stat Cards */
.floating-stat {
    position: absolute;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 12px 18px;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(255, 255, 255, 0.8);
    display: flex;
    align-items: center;
    gap: 12px;
    animation: floatAnimation 4s ease-in-out infinite;
    z-index: 2;
}

.floating-stat.stat-top-right {
    top: 5%;
    right: -15px;
    animation-delay: 0s;
}

.floating-stat.stat-bottom-left {
    bottom: 8%;
    left: -20px;
    animation-delay: 2s;
}

.stat-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    background: #E8F5E9;
}

.stat-text strong {
    display: block;
    font-size: 0.9rem;
    color: var(--text-primary);
}

.stat-text span {
    font-size: 0.78rem;
    color: var(--text-muted);
}

@keyframes floatAnimation {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-8px); }
}

/* ==========================================================================
   Social Proof & Logos de Clientes
   ========================================================================== */
.social-proof-bar {
    background: #FFFFFF;
    padding: 40px 0;
    border-top: 1px solid var(--border-subtle);
    border-bottom: 1px solid var(--border-subtle);
}

.proof-header {
    text-align: center;
    font-size: 0.92rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    margin-bottom: 24px;
}

.clients-logos-grid {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: center;
    gap: 40px;
}

.client-logo-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 22px;
    background: var(--bg-surface);
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
    transition: var(--transition);
}

.client-logo-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-sm);
    border-color: var(--wa-green);
}

.client-logo-card img {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
}

.client-info strong {
    display: block;
    font-size: 0.92rem;
    color: var(--text-primary);
}

.client-info span {
    font-size: 0.78rem;
    color: var(--text-muted);
}

.metrics-strip {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 36px;
    padding-top: 28px;
    border-top: 1px dashed var(--border-subtle);
}

.metric-pill {
    text-align: center;
}

.metric-pill .metric-number {
    font-size: 2.2rem;
    font-weight: 900;
    color: var(--wa-teal-dark);
    line-height: 1.1;
}

.metric-pill .metric-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
}

/* ==========================================================================
   Seções Comuns (Títulos e Layouts)
   ========================================================================== */
.section-wrapper {
    padding: 85px 0;
}

.section-wrapper.bg-surface {
    background-color: var(--bg-surface);
}

.section-header {
    text-align: center;
    max-width: 780px;
    margin: 0 auto 50px;
}

.section-tag {
    display: inline-block;
    font-size: 0.82rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--wa-teal);
    background: #E0F2FE;
    padding: 5px 14px;
    border-radius: var(--radius-full);
    margin-bottom: 12px;
}

.section-title {
    font-size: clamp(1.9rem, 3.4vw, 2.7rem);
    font-weight: 900;
    color: var(--text-primary);
    line-height: 1.22;
    margin-bottom: 14px;
    letter-spacing: -0.01em;
}

.section-desc {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ==========================================================================
   Antes vs Depois (Problemas vs Solução CenterChat)
   ========================================================================== */
.comparison-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    margin-bottom: 45px;
}

.comparison-card {
    border-radius: var(--radius-lg);
    padding: 36px;
    background: #FFFFFF;
    box-shadow: var(--shadow-sm);
    border: 2px solid transparent;
    transition: var(--transition);
}

.comparison-card.card-before {
    background: #FFF5F5;
    border-color: #FECACA;
}

.comparison-card.card-after {
    background: #F0FDF4;
    border-color: #86EFAC;
    box-shadow: var(--shadow-md);
}

.comparison-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 800;
    padding: 6px 14px;
    border-radius: var(--radius-full);
    margin-bottom: 20px;
}

.card-before .comparison-badge {
    background: #FEE2E2;
    color: #991B1B;
}

.card-after .comparison-badge {
    background: #DCFCE7;
    color: #166534;
}

.comparison-card h3 {
    font-size: 1.45rem;
    font-weight: 800;
    margin-bottom: 20px;
    color: var(--text-primary);
}

.comparison-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.comparison-list li {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    font-size: 0.96rem;
    line-height: 1.5;
}

.comparison-list .icon-cross {
    color: #EF4444;
    font-size: 1.2rem;
    font-weight: bold;
    flex-shrink: 0;
}

.comparison-list .icon-check {
    color: #10B981;
    font-size: 1.2rem;
    font-weight: bold;
    flex-shrink: 0;
}

/* ==========================================================================
   Simulador Interativo WhatsApp (Experiência Dinâmica & Surpreendente)
   ========================================================================== */
.simulator-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
    align-items: center;
}

.sim-info h3 {
    font-size: 1.8rem;
    font-weight: 800;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.sim-info p {
    font-size: 1.02rem;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.sim-features-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 30px;
}

.sim-features-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.sim-features-list svg {
    width: 20px;
    height: 20px;
    color: var(--wa-green);
    fill: currentColor;
    flex-shrink: 0;
}

/* Moldura do WhatsApp */
.wa-mockup {
    background: #FFFFFF;
    border-radius: var(--radius-lg);
    box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.25);
    border: 8px solid #0F172A;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    height: 580px;
    position: relative;
}

.wa-mockup-header {
    background: var(--wa-teal-dark);
    color: #FFFFFF;
    padding: 14px 18px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.wa-header-user {
    display: flex;
    align-items: center;
    gap: 12px;
}

.wa-avatar {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: #FFFFFF;
    padding: 3px;
    object-fit: cover;
}

.wa-user-details strong {
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 5px;
}

.wa-verified {
    color: var(--wa-green);
    font-size: 0.9rem;
}

.wa-user-details span {
    font-size: 0.78rem;
    color: #A7F3D0;
    display: block;
}

.wa-header-controls {
    display: flex;
    align-items: center;
    gap: 10px;
}

.sound-toggle-btn {
    color: #FFFFFF;
    background: rgba(255, 255, 255, 0.15);
    padding: 6px 10px;
    border-radius: var(--radius-sm);
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition);
}

.sound-toggle-btn:hover {
    background: rgba(255, 255, 255, 0.25);
}

.sound-toggle-btn.muted {
    opacity: 0.6;
    text-decoration: line-through;
}

/* Chat Body */
.wa-chat-body {
    flex: 1;
    background-color: var(--wa-chat-bg);
    background-image: url('../assets/images/wa-background-light.png');
    background-repeat: repeat;
    background-size: 380px;
    padding: 16px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
    scroll-behavior: smooth;
}

.sim-bubble {
    max-width: 85%;
    padding: 10px 14px;
    border-radius: 12px;
    font-size: 0.9rem;
    line-height: 1.45;
    position: relative;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
    animation: fadeInBubble 0.25s ease forwards;
}

@keyframes fadeInBubble {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

.sim-bubble.bot {
    background: #FFFFFF;
    align-self: flex-start;
    border-top-left-radius: 2px;
}

.sim-bubble.user {
    background: var(--wa-light-green);
    align-self: flex-end;
    border-top-right-radius: 2px;
}

.bubble-content {
    color: var(--text-primary);
}

.bubble-time {
    display: block;
    font-size: 0.72rem;
    color: var(--text-muted);
    text-align: right;
    margin-top: 4px;
}

.bubble-time .checks {
    color: #3B82F6;
    margin-left: 4px;
}

.sim-bubble-cta {
    display: inline-block;
    margin-top: 10px;
    background: var(--wa-teal);
    color: #FFFFFF;
    font-weight: 700;
    font-size: 0.85rem;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    text-align: center;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
    transition: var(--transition);
}

.sim-bubble-cta:hover {
    background: var(--wa-teal-dark);
}

/* Typing Indicator */
.typing-indicator {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 12px 18px;
    width: fit-content;
}

.typing-indicator span {
    width: 7px;
    height: 7px;
    background: #94A3B8;
    border-radius: 50%;
    animation: blinkTyping 1.4s infinite ease-in-out both;
}

.typing-indicator span:nth-child(1) { animation-delay: -0.32s; }
.typing-indicator span:nth-child(2) { animation-delay: -0.16s; }

@keyframes blinkTyping {
    0%, 80%, 100% { transform: scale(0); }
    40% { transform: scale(1); }
}

/* Quick Chips */
.wa-chips-row {
    background: #F8FAFC;
    padding: 10px 14px;
    border-top: 1px solid var(--border-subtle);
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.sim-chip {
    background: #FFFFFF;
    border: 1px solid #CBD5E1;
    color: var(--wa-teal-dark);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: var(--radius-full);
    transition: var(--transition);
    white-space: nowrap;
}

.sim-chip:hover {
    background: var(--wa-green);
    color: #FFFFFF;
    border-color: var(--wa-green);
}

/* Input Area */
.wa-input-area {
    background: #F0F2F5;
    padding: 10px 14px;
    display: flex;
    align-items: center;
    gap: 10px;
    border-top: 1px solid #E2E8F0;
}

.wa-input-area input {
    flex: 1;
    border: none;
    background: #FFFFFF;
    padding: 10px 16px;
    border-radius: var(--radius-full);
    font-size: 0.9rem;
    outline: none;
}

.wa-input-area button.btn-send {
    background: var(--wa-teal);
    color: #FFFFFF;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.wa-input-area button.btn-send:hover {
    background: var(--wa-green);
    transform: scale(1.05);
}

/* ==========================================================================
   Recursos & Funcionalidades Completas
   ========================================================================== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 30px;
}

.feature-box {
    background: #FFFFFF;
    padding: 34px 28px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.feature-box:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-md);
    border-color: var(--wa-green);
}

.feature-icon-wrapper {
    width: 60px;
    height: 60px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, #DCFCE7 0%, #E0F2FE 100%);
    color: var(--wa-teal);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.feature-icon-wrapper svg {
    width: 32px;
    height: 32px;
    fill: currentColor;
}

.feature-box h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
}

.feature-box p {
    font-size: 0.95rem;
    color: var(--text-muted);
    line-height: 1.55;
}

/* ==========================================================================
   Seção de Vídeo Cinema
   ========================================================================== */
.video-showcase-section {
    background: var(--grad-dark);
    color: #FFFFFF;
    padding: 90px 0;
    position: relative;
    overflow: hidden;
}

.video-showcase-section::before {
    content: '';
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(37, 211, 102, 0.12) 0%, transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    pointer-events: none;
}

.video-theater-card {
    max-width: 920px;
    margin: 0 auto;
    border-radius: var(--radius-lg);
    background: rgba(30, 41, 59, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 16px;
    box-shadow: 0 30px 70px rgba(0, 0, 0, 0.5);
}

.video-aspect-frame {
    aspect-ratio: 16 / 9;
    border-radius: var(--radius-md);
    overflow: hidden;
    background: #000000;
}

.video-aspect-frame iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* ==========================================================================
   Calculadora de Produtividade & ROI
   ========================================================================== */
.calc-wrapper {
    background: #FFFFFF;
    border-radius: var(--radius-lg);
    padding: 45px;
    border: 1px solid var(--border-subtle);
    box-shadow: var(--shadow-md);
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 40px;
}

.calc-sliders {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.slider-group label {
    display: flex;
    justify-content: space-between;
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.slider-group label .highlight-num {
    color: var(--wa-teal);
    font-size: 1.15rem;
}

.range-slider {
    -webkit-appearance: none;
    width: 100%;
    height: 8px;
    border-radius: 5px;
    background: #E2E8F0;
    outline: none;
}

.range-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--wa-green);
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
    border: 2px solid #FFFFFF;
}

.range-slider::-moz-range-thumb {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: var(--wa-green);
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
    border: 2px solid #FFFFFF;
}

.calc-results-box {
    background: linear-gradient(135deg, #F0FDF4 0%, #DCFCE7 100%);
    border-radius: var(--radius-md);
    padding: 32px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    border: 1px solid #86EFAC;
}

.result-stat-item {
    margin-bottom: 20px;
}

.result-stat-item .result-title {
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
    color: var(--wa-teal-dark);
}

.result-stat-item .result-val {
    font-size: 2.2rem;
    font-weight: 900;
    color: var(--wa-teal-dark);
}

.recommended-plan-tag {
    background: #FFFFFF;
    padding: 12px 18px;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 20px;
    border-left: 4px solid var(--wa-green);
}

/* ==========================================================================
   Tabela de Planos & Switch de Faturamento
   ========================================================================== */
.pricing-switch-container {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 45px;
}

.pricing-switch-container span {
    font-weight: 700;
    font-size: 1rem;
    color: var(--text-secondary);
}

.switch-wrapper {
    position: relative;
    display: inline-block;
    width: 58px;
    height: 32px;
}

.switch-wrapper input {
    opacity: 0;
    width: 0;
    height: 0;
}

.switch-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #CBD5E1;
    transition: var(--transition);
    border-radius: 34px;
}

.switch-slider:before {
    position: absolute;
    content: "";
    height: 24px;
    width: 24px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: var(--transition);
    border-radius: 50%;
}

input:checked + .switch-slider {
    background-color: var(--wa-green);
}

input:checked + .switch-slider:before {
    transform: translateX(26px);
}

.discount-badge {
    background: #FEF3C7;
    color: #92400E;
    font-size: 0.78rem;
    font-weight: 800;
    padding: 4px 10px;
    border-radius: var(--radius-full);
}

.pricing-cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
    align-items: stretch;
}

.plan-card {
    background: #FFFFFF;
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    border: 2px solid var(--border-subtle);
    box-shadow: var(--shadow-sm);
    display: flex;
    flex-direction: column;
    position: relative;
    transition: var(--transition);
}

.plan-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.plan-card.featured {
    border-color: var(--wa-green);
    box-shadow: var(--shadow-md);
    transform: scale(1.03);
}

.plan-card.featured:hover {
    transform: scale(1.04) translateY(-4px);
}

.featured-pill {
    position: absolute;
    top: -15px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--grad-primary);
    color: #FFFFFF;
    font-size: 0.78rem;
    font-weight: 800;
    padding: 6px 18px;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
}

.plan-header h3 {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 6px;
}

.plan-header p {
    font-size: 0.92rem;
    color: var(--text-muted);
    min-height: 44px;
}

.plan-pricing-box {
    margin: 25px 0 20px;
}

.plan-pricing-box .currency {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--text-primary);
}

.plan-pricing-box .plan-val {
    font-size: 3.4rem;
    font-weight: 900;
    color: var(--text-primary);
    letter-spacing: -0.03em;
}

.plan-pricing-box .cents {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-primary);
}

.plan-period-label {
    display: block;
    font-size: 0.85rem;
    color: var(--text-muted);
}

.plan-economy-tag {
    display: none;
    font-size: 0.78rem;
    color: #166534;
    font-weight: 700;
    margin-top: 4px;
}

.plan-features-list {
    margin: 20px 0 32px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.plan-features-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 0.93rem;
    color: var(--text-secondary);
}

.plan-features-list li svg {
    width: 18px;
    height: 18px;
    color: var(--wa-green);
    fill: currentColor;
    flex-shrink: 0;
}

.btn-plan {
    width: 100%;
    padding: 14px;
    text-align: center;
    border-radius: var(--radius-sm);
    font-weight: 800;
    font-size: 1rem;
    background: var(--text-primary);
    color: #FFFFFF;
    transition: var(--transition);
}

.plan-card.featured .btn-plan {
    background: var(--grad-primary);
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
}

.btn-plan:hover {
    transform: translateY(-2px);
    opacity: 0.92;
}

/* ==========================================================================
   FAQ Accordion
   ========================================================================== */
.faq-accordion {
    max-width: 820px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.faq-item {
    background: #FFFFFF;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
    overflow: hidden;
    transition: var(--transition);
}

.faq-item.active {
    border-color: var(--wa-green);
    box-shadow: var(--shadow-sm);
}

.faq-question {
    width: 100%;
    text-align: left;
    padding: 22px 24px;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
}

.faq-chevron {
    width: 20px;
    height: 20px;
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.faq-item.active .faq-chevron {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
}

.faq-answer-inner {
    padding: 0 24px 22px;
    font-size: 0.96rem;
    color: var(--text-secondary);
    line-height: 1.65;
}

/* ==========================================================================
   Final Conversion CTA Banner
   ========================================================================== */
.final-cta-section {
    background: var(--wa-teal-dark);
    color: #FFFFFF;
    padding: 85px 0;
    position: relative;
    overflow: hidden;
    text-align: center;
}

.final-cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: url('../assets/images/wa-background-dark.jpg');
    background-size: cover;
    background-position: center;
    opacity: 0.08;
    pointer-events: none;
}

.final-cta-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    margin: 0 auto;
}

.final-cta-content h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 900;
    line-height: 1.2;
    margin-bottom: 20px;
}

.final-cta-content p {
    font-size: 1.15rem;
    color: #D1FAE5;
    margin-bottom: 35px;
}

/* ==========================================================================
   Rodapé Profissional
   ========================================================================== */
.site-footer {
    background: #0B132B;
    color: #94A3B8;
    padding: 70px 0 30px;
    font-size: 0.92rem;
    border-top: 1px solid #1E293B;
}

.footer-top-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 40px;
    margin-bottom: 50px;
}

.footer-col h4 {
    color: #FFFFFF;
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 20px;
    position: relative;
}

.footer-logo {
    max-width: 200px;
    margin-bottom: 16px;
    background: #FFFFFF;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.footer-links-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links-list a:hover {
    color: var(--wa-green);
    padding-left: 4px;
}

.footer-contact-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-contact-list li {
    display: flex;
    align-items: flex-start;
    gap: 10px;
}

.footer-bottom-bar {
    padding-top: 30px;
    border-top: 1px solid #1E293B;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
    font-size: 0.84rem;
}

.security-seals {
    display: flex;
    align-items: center;
    gap: 16px;
}

.seal-pill {
    background: rgba(255, 255, 255, 0.08);
    padding: 6px 14px;
    border-radius: var(--radius-full);
    font-size: 0.78rem;
    color: #E2E8F0;
    display: flex;
    align-items: center;
    gap: 6px;
}

/* ==========================================================================
   Floating WhatsApp Button & Teaser Popup
   ========================================================================== */
.floating-whatsapp {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 990;
    display: flex;
    flex-direction: column;
    align-items: flex-end;
}

.floating-teaser {
    background: #FFFFFF;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-subtle);
    padding: 14px 18px;
    margin-bottom: 12px;
    max-width: 270px;
    position: relative;
    display: none;
    animation: fadeInBubble 0.3s ease;
}

.floating-teaser.visible {
    display: block;
}

.close-teaser {
    position: absolute;
    top: 6px;
    right: 8px;
    color: #94A3B8;
    font-size: 1.1rem;
    line-height: 1;
}

.floating-teaser strong {
    display: block;
    font-size: 0.9rem;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.floating-teaser p {
    font-size: 0.82rem;
    color: var(--text-secondary);
}

.floating-wa-btn {
    width: 62px;
    height: 62px;
    background: var(--wa-green);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #FFFFFF;
    box-shadow: var(--shadow-glow);
    position: relative;
    transition: var(--transition);
}

.floating-wa-btn:hover {
    transform: scale(1.08);
    background: #20bd5a;
}

.floating-wa-btn svg {
    width: 34px;
    height: 34px;
    fill: #FFFFFF;
}

.wa-pulse-ring {
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    border: 2px solid var(--wa-green);
    animation: pulseRing 2s infinite;
}

.wa-notification-badge {
    position: absolute;
    top: -2px;
    right: -2px;
    background: #EF4444;
    color: #FFFFFF;
    font-size: 0.72rem;
    font-weight: 800;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 2px solid #FFFFFF;
}

@keyframes pulseRing {
    0% { transform: scale(1); opacity: 0.8; }
    100% { transform: scale(1.35); opacity: 0; }
}

/* ==========================================================================
   Responsividade (Mobile & Tablet)
   ========================================================================== */
@media (max-width: 1024px) {
    .hero-grid,
    .simulator-container,
    .calc-wrapper,
    .comparison-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

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

    .plan-card.featured {
        transform: none;
    }
}

@media (max-width: 820px) {
    .menu-toggle {
        display: flex;
    }

    .nav-actions .btn-header-cta {
        display: none;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: min(300px, 85vw);
        height: 100vh;
        height: 100dvh;
        background: #FFFFFF;
        flex-direction: column;
        align-items: flex-start;
        padding: 70px 24px 30px;
        gap: 16px;
        overflow-y: auto;
        box-shadow: -5px 0 25px rgba(0, 0, 0, 0.15);
        transition: right 0.35s ease;
        z-index: 999;
    }

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

    .floating-stat {
        display: none; /* Evita quebrar layout em telas pequenas */
    }

    .footer-top-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }

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

@media (max-width: 540px) {
    .calc-wrapper {
        padding: 24px;
    }

    .hero-ctas {
        flex-direction: column;
        width: 100%;
    }

    .btn-primary-cta,
    .btn-secondary-cta {
        width: 100%;
        text-align: center;
    }
}