/* =============================================
   ChatNTSI - Estilos Modernos
   ============================================= */

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #10b981;
    --secondary-dark: #059669;
    --accent: #f59e0b;
    --dark: #0f172a;
    --dark-light: #1e293b;
    --gray-900: #111827;
    --gray-800: #1f2937;
    --gray-700: #374151;
    --gray-600: #4b5563;
    --gray-500: #6b7280;
    --gray-400: #9ca3af;
    --gray-300: #d1d5db;
    --gray-200: #e5e7eb;
    --gray-100: #f3f4f6;
    --gray-50: #f9fafb;
    --white: #ffffff;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;

    --gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --gradient-2: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #d946ef 100%);
    --gradient-3: linear-gradient(135deg, #0ea5e9 0%, #6366f1 100%);
    --gradient-hero: linear-gradient(135deg, #1e3a5f 0%, #2d5a87 50%, #1e3a5f 100%);

    --shadow-xs: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow: 0 4px 20px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
    --shadow-xl: 0 20px 60px rgba(0,0,0,0.15);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.3);

    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-2xl: 32px;

    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    font-size: 16px;
    line-height: 1.7;
    color: var(--gray-700);
    background: var(--white);
    overflow-x: hidden;
}

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

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

ul, ol {
    list-style: none;
}

/* Container */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* =============================================
   Header & Navigation
   ============================================= */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255,255,255,0.01);
    backdrop-filter: blur(0px);
    transition: var(--transition);
    z-index: -1;
}

.header.scrolled::before {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(0,0,0,0.05);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 48px;
}

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

.logo-img {
    height: 48px;
    width: auto;
    transition: var(--transition);
}

.nav-menu {
    display: flex;
    gap: 8px;
}

.nav-link {
    color: rgba(255,255,255,0.9);
    font-weight: 500;
    font-size: 15px;
    padding: 10px 18px;
    border-radius: var(--radius);
    position: relative;
    transition: var(--transition);
}

.header.scrolled .nav-link {
    color: var(--gray-700);
}

.nav-link:hover {
    color: var(--white);
    background: rgba(255,255,255,0.1);
}

.header.scrolled .nav-link:hover {
    color: var(--primary);
    background: var(--gray-100);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: var(--radius-sm);
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: var(--transition);
}

.header.scrolled .nav-toggle span {
    background: var(--gray-700);
}

/* =============================================
   Buttons
   ============================================= */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius);
    border: none;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
    background: var(--secondary);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(16, 185, 129, 0.4);
}

.btn-secondary:hover {
    background: var(--secondary-dark);
    transform: translateY(-2px);
}

.btn-outline {
    background: rgba(255,255,255,0.1);
    border: 2px solid rgba(255,255,255,0.3);
    color: var(--white);
    backdrop-filter: blur(10px);
}

.header.scrolled .btn-outline {
    background: transparent;
    border-color: var(--gray-300);
    color: var(--gray-700);
}

.btn-outline:hover {
    background: var(--white);
    border-color: var(--white);
    color: var(--primary);
}

.header.scrolled .btn-outline:hover {
    background: var(--gray-100);
    border-color: var(--gray-300);
}

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

.btn-white:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.btn-lg {
    padding: 16px 32px;
    font-size: 16px;
    border-radius: var(--radius-lg);
}

.btn-block {
    width: 100%;
}

/* =============================================
   Hero Section
   ============================================= */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 140px 0 100px;
    overflow: hidden;
}

.hero-small {
    min-height: 50vh;
    padding: 140px 0 80px;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-hero);
    z-index: -2;
}

.hero-bg::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 80%, rgba(99, 102, 241, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.3) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(14, 165, 233, 0.2) 0%, transparent 40%);
}

.hero-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.03'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(255,255,255,0.1);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 50px;
    color: var(--white);
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 24px;
    backdrop-filter: blur(10px);
}

.hero-badge i {
    color: var(--accent);
}

.hero-title {
    font-size: clamp(36px, 6vw, 64px);
    font-weight: 800;
    color: var(--white);
    line-height: 1.1;
    margin-bottom: 24px;
    letter-spacing: -0.02em;
}

.hero-title span {
    background: linear-gradient(135deg, #60a5fa 0%, #a78bfa 50%, #f472b6 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(18px, 2.5vw, 22px);
    color: rgba(255,255,255,0.8);
    margin-bottom: 40px;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

.hero-features {
    display: flex;
    gap: 32px;
    justify-content: center;
    flex-wrap: wrap;
}

.hero-feature {
    display: flex;
    align-items: center;
    gap: 10px;
    color: rgba(255,255,255,0.8);
    font-size: 15px;
    font-weight: 500;
}

.hero-feature i {
    font-size: 22px;
    color: var(--white);
}

.hero-wave {
    position: absolute;
    bottom: -1px;
    left: 0;
    right: 0;
}

.hero-wave svg {
    display: block;
    width: 100%;
}

/* Floating elements */
.hero::before {
    content: '';
    position: absolute;
    top: 20%;
    left: 10%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.4) 0%, transparent 70%);
    border-radius: 50%;
    filter: blur(60px);
    animation: float 8s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 20%;
    right: 10%;
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.3) 0%, transparent 70%);
    border-radius: 50%;
    filter: blur(60px);
    animation: float 6s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-30px) scale(1.1); }
}

/* =============================================
   Sections
   ============================================= */
.section {
    padding: 120px 0;
    position: relative;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    border-radius: 50px;
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(32px, 4vw, 48px);
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-subtitle {
    font-size: 18px;
    color: var(--gray-500);
    max-width: 600px;
    margin: 0 auto;
}

/* =============================================
   Recursos Section
   ============================================= */
.recursos {
    background: var(--gray-50);
}

.recursos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 24px;
}

.recurso-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 36px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--gray-100);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.recurso-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--gradient-2);
    opacity: 0;
    transition: var(--transition);
}

.recurso-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.recurso-card:hover::before {
    opacity: 1;
}

.recurso-icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-2);
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    font-size: 28px;
    color: var(--white);
    box-shadow: 0 8px 20px rgba(99, 102, 241, 0.3);
}

.recurso-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 12px;
}

.recurso-desc {
    color: var(--gray-500);
    font-size: 15px;
    line-height: 1.7;
}

/* =============================================
   Planos Section
   ============================================= */
.planos-section {
    background: linear-gradient(180deg, var(--white) 0%, var(--gray-50) 100%);
}

.planos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
    max-width: 1200px;
    margin: 0 auto;
}

.plano-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
    border: 2px solid transparent;
}

.plano-card:hover {
    transform: translateY(-12px);
    box-shadow: var(--shadow-xl);
}

.plano-card.destaque {
    border-color: var(--primary);
    transform: scale(1.02);
    z-index: 10;
}

.plano-card.destaque:hover {
    transform: scale(1.02) translateY(-12px);
}

.plano-badge {
    position: absolute;
    top: -1px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-2);
    color: var(--white);
    font-size: 12px;
    font-weight: 700;
    padding: 6px 20px;
    border-radius: 0 0 var(--radius) var(--radius);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.plano-header {
    background: var(--primary);
    color: var(--white);
    padding: 36px 28px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.plano-header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 200%;
    background: rgba(255,255,255,0.1);
    transform: rotate(30deg);
}

.plano-nome {
    font-size: 26px;
    font-weight: 800;
    margin-bottom: 8px;
    position: relative;
}

.plano-conexoes {
    font-size: 18px;
    font-weight: 600;
    opacity: 0.95;
    position: relative;
}

.plano-desc {
    font-size: 14px;
    opacity: 0.85;
    margin-top: 4px;
    position: relative;
}

.plano-body {
    padding: 36px 28px;
}

.plano-preco {
    text-align: center;
    margin-bottom: 28px;
    padding-bottom: 28px;
    border-bottom: 1px solid var(--gray-200);
}

.plano-preco .moeda {
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-600);
    vertical-align: top;
    position: relative;
    top: 10px;
}

.plano-preco .valor {
    font-size: 56px;
    font-weight: 800;
    color: var(--gray-900);
    line-height: 1;
    letter-spacing: -2px;
}

.plano-preco .centavos {
    font-size: 20px;
    font-weight: 700;
    color: var(--gray-600);
    vertical-align: top;
    position: relative;
    top: 10px;
}

.plano-preco .periodo {
    display: block;
    font-size: 15px;
    color: var(--gray-500);
    margin-top: 4px;
}

.plano-recursos {
    margin-bottom: 28px;
}

.plano-recursos li {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 0;
    font-size: 15px;
    color: var(--gray-700);
    border-bottom: 1px solid var(--gray-100);
}

.plano-recursos li:last-child {
    border-bottom: none;
}

.plano-recursos i {
    font-size: 18px;
    width: 24px;
    text-align: center;
}

/* =============================================
   Depoimentos Section
   ============================================= */
.depoimentos-section {
    background: var(--gray-50);
}

.depoimentos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 28px;
}

.depoimento-card {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 36px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    position: relative;
}

.depoimento-card::before {
    content: '"';
    position: absolute;
    top: 20px;
    right: 30px;
    font-size: 80px;
    font-family: Georgia, serif;
    color: var(--gray-100);
    line-height: 1;
}

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

.depoimento-stars {
    margin-bottom: 20px;
}

.depoimento-stars i {
    color: var(--gray-300);
    font-size: 18px;
    margin-right: 2px;
}

.depoimento-stars i.active {
    color: var(--accent);
}

.depoimento-texto {
    font-size: 16px;
    color: var(--gray-600);
    line-height: 1.8;
    margin-bottom: 28px;
    position: relative;
}

.depoimento-autor {
    display: flex;
    align-items: center;
    gap: 16px;
}

.autor-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: var(--gradient-2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 20px;
    overflow: hidden;
}

.autor-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.autor-info strong {
    display: block;
    color: var(--gray-900);
    font-size: 16px;
    font-weight: 600;
}

.autor-info span {
    font-size: 14px;
    color: var(--gray-500);
}

/* =============================================
   FAQ Section
   ============================================= */
.faq-section {
    background: var(--white);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--gray-50);
    border-radius: var(--radius-lg);
    margin-bottom: 12px;
    overflow: hidden;
    transition: var(--transition);
}

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

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 24px 28px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 17px;
    font-weight: 600;
    color: var(--gray-900);
    text-align: left;
    transition: var(--transition);
}

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

.faq-question i {
    color: var(--primary);
    transition: var(--transition);
    font-size: 14px;
}

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

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 28px 24px;
    color: var(--gray-600);
    line-height: 1.8;
}

/* =============================================
   Contato Section
   ============================================= */
.contato-section {
    background: var(--dark);
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.contato-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 10% 90%, rgba(99, 102, 241, 0.2) 0%, transparent 40%),
        radial-gradient(circle at 90% 10%, rgba(139, 92, 246, 0.15) 0%, transparent 40%);
}

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

.contato-section .section-subtitle {
    color: rgba(255,255,255,0.7);
}

.contato-section .section-badge {
    background: rgba(255,255,255,0.1);
    color: var(--white);
}

.contato-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
    align-items: start;
    position: relative;
}

.contato-info h3 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 16px;
}

.contato-info p {
    color: rgba(255,255,255,0.7);
    margin-bottom: 32px;
    font-size: 16px;
}

.contato-canais {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.canal-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 24px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.canal-item:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.2);
    transform: translateX(8px);
}

.canal-item i {
    font-size: 24px;
    color: var(--primary-light);
}

.contato-form {
    background: var(--white);
    border-radius: var(--radius-xl);
    padding: 48px;
    box-shadow: var(--shadow-xl);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    font-size: 15px;
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    transition: var(--transition);
    font-family: inherit;
    background: var(--gray-50);
}

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

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

/* =============================================
   Footer
   ============================================= */
.footer {
    background: var(--dark);
    color: rgba(255,255,255,0.7);
    padding: 80px 0 32px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 60px;
}

.footer-brand .logo {
    margin-bottom: 20px;
}

.footer-brand .logo-img {
    height: 42px;
}

.footer-brand p {
    font-size: 15px;
    line-height: 1.7;
    color: rgba(255,255,255,0.6);
}

.social-links {
    display: flex;
    gap: 10px;
    margin-top: 24px;
}

.social-links a {
    width: 42px;
    height: 42px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 18px;
    transition: var(--transition);
}

.social-links a:hover {
    background: var(--primary);
    border-color: var(--primary);
    transform: translateY(-4px);
}

.footer-links h4,
.footer-contact h4 {
    color: var(--white);
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 24px;
}

.footer-links ul li,
.footer-contact ul li {
    margin-bottom: 14px;
}

.footer-links a,
.footer-contact a {
    color: rgba(255,255,255,0.6);
    font-size: 15px;
}

.footer-links a:hover,
.footer-contact a:hover {
    color: var(--primary-light);
}

.footer-contact ul li {
    display: flex;
    align-items: center;
    gap: 12px;
}

.footer-contact i {
    color: var(--primary-light);
    width: 18px;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 32px;
    text-align: center;
    font-size: 14px;
    color: rgba(255,255,255,0.5);
}

/* =============================================
   WhatsApp Float
   ============================================= */
.whatsapp-float {
    position: fixed;
    bottom: 28px;
    right: 28px;
    width: 64px;
    height: 64px;
    background: #25d366;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 32px;
    box-shadow: 0 6px 24px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: var(--transition);
}

.whatsapp-float:hover {
    transform: scale(1.1) translateY(-4px);
    box-shadow: 0 10px 32px rgba(37, 211, 102, 0.5);
}

/* =============================================
   Responsive
   ============================================= */
@media (max-width: 1024px) {
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .contato-grid {
        grid-template-columns: 1fr;
    }

    .plano-card.destaque {
        transform: none;
    }

    .plano-card.destaque:hover {
        transform: translateY(-12px);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 85%;
        max-width: 320px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        padding: 100px 32px 32px;
        gap: 8px;
        transition: var(--transition);
        box-shadow: var(--shadow-xl);
        z-index: 100;
    }

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

    .nav-menu .nav-link {
        color: var(--gray-700);
        padding: 16px;
        border-radius: var(--radius);
    }

    .nav-menu .nav-link:hover {
        background: var(--gray-100);
    }

    .nav-toggle {
        display: flex;
        z-index: 101;
    }

    .nav-actions .btn-outline {
        display: none;
    }

    .hero {
        padding: 120px 0 80px;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

    .hero-actions .btn {
        width: 100%;
        max-width: 300px;
    }

    .section {
        padding: 80px 0;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

    .social-links {
        justify-content: center;
    }

    .recursos-grid {
        grid-template-columns: 1fr;
    }

    .depoimentos-grid {
        grid-template-columns: 1fr;
    }

    .contato-form {
        padding: 32px 24px;
    }
}

@media (max-width: 480px) {
    .hero-features {
        flex-direction: column;
        gap: 16px;
    }

    .planos-grid {
        grid-template-columns: 1fr;
    }

    .plano-preco .valor {
        font-size: 48px;
    }
}