/* ===== RESET E CONFIGURAÇÕES GLOBAIS ===== */
:root {
    --primary-color: #25D366;
    --primary-dark: #1fa855;
    --secondary-color: #3f51b5; /* Azul mais neutro */
    --accent-color: #283593; /* Azul mais escuro e profissional */
    --text-dark: #1a2a3a;
    --text-light: #666;
    --text-muted: #999;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --shadow-light: rgba(0, 0, 0, 0.1);
    --shadow-medium: rgba(0, 0, 0, 0.15);
    --shadow-strong: rgba(0, 0, 0, 0.25);
    --border-radius: 8px;
    --border-radius-lg: 15px;
    --transition: all 0.3s ease;
    --max-width: 1200px;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-white);
    overflow-x: hidden;
}

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== LOADING SPINNER ===== */
.loading-spinner {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.95);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    opacity: 1;
    transition: opacity 0.5s ease;
}

.loading-spinner.hidden {
    opacity: 0;
    pointer-events: none;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--bg-light);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 15px;
}

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

/* ===== HEADER ===== */
.modern-header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    box-shadow: 0 2px 20px var(--shadow-light);
    transition: var(--transition);
}

.modern-header.scrolled {
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 30px var(--shadow-medium);
}

.modern-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-right: 48px; /* Aumenta o espaçamento à direita */
}

.header-logo {
    width: 50px;
    height: 50px;
    border-radius: 10px;
    object-fit: cover;
}

.brand-text h1 {
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0;
}

.tagline {
    font-size: 14px;
    color: var(--text-light);
    font-weight: 500;
}

.main-nav {
    display: flex;
    align-items: center;
}

.nav-list {
    display: flex;
    list-style: none;
    align-items: center; /* Alinha os itens verticalmente */
    gap: 1.5rem; /* Espaçamento entre os links */
    margin: 0;
}

.nav-link {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 0;
    position: relative;
    transition: color 0.3s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: var(--primary-color);
    transition: width 0.3s ease;
}

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

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

/* Botão de Login no Header */
.btn-login {
    background-color: transparent; /* Remove o fundo */
    color: var(--primary-color) !important; /* Cor do texto principal */
    padding: 0; /* Remove o padding */
    border-radius: 0; /* Remove o arredondamento */
    font-weight: 600; /* Torna o texto mais negrito */
    text-align: center;
    transition: color 0.3s ease, transform 0.2s ease; /* Ajusta a transição */
}

.btn-login:hover {
    background-color: transparent; /* Garante que não tenha fundo no hover */
    color: var(--primary-dark) !important; /* Escurece a cor no hover */
    transform: none; /* Remove o efeito de levantar */
}

/* Remove a animação de linha para o botão */
.btn-login::after {
    display: none;
}


/* Estilos do Hamburger Menu */
.nav-toggle {
    display: none;
    flex-direction: column;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
    gap: 4px;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--text-dark);
    transition: var(--transition);
}

.nav-list {
    display: flex;
    list-style: none;
    gap: 30px;
    margin: 0;
}

.nav-link {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
    padding: 10px 0;
    position: relative;
    transition: var(--transition);
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: width 0.3s ease;
}

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

/* ===== HERO SECTION ===== */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding-top: 80px;
    background: var(--bg-white); /* Fundo branco, sem gradiente */
}

.hero-background,
.hero-gradient,
.hero-particles {
    display: none !important;
}

.hero-content {
    flex: 1;
    color: var(--text-dark);
    z-index: 1;
}

.hero-visual {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    gap: 20px;
    min-height: 400px;
    position: relative;
}

.floating-card {
    position: static;
    background: #fff;
    backdrop-filter: none;
    padding: 16px 22px;
    border-radius: var(--border-radius-lg);
    box-shadow: 0 2px 12px var(--shadow-light);
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 0;
    animation: none;
    min-width: 220px;
}

.floating-card i {
    font-size: 22px;
    color: var(--primary-color);
}

.floating-card span {
    font-weight: 600;
    color: var(--text-dark);
}

/* Responsividade para mobile */
@media (max-width: 900px) {
    .hero-section {
        flex-direction: column;
        text-align: center;
        padding: 100px 0 50px;
    }
    .hero-content {
        margin-bottom: 40px;
    }
    .hero-visual {
        align-items: center;
        min-height: unset;
    }
    .floating-card {
        min-width: 180px;
    }
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.highlight {
    background: linear-gradient(45deg, #FFD700, #FFA500);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: clamp(1.1rem, 2vw, 1.3rem);
    margin-bottom: 30px;
    opacity: 0.9;
    max-width: 600px;
}

.hero-actions {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
}

.btn-primary,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 30px;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: var(--transition);
    border: none;
    cursor: pointer;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.3);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.2);
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
}

/* ===== SECTIONS ===== */
.features-section,
.connection-section,
.payments-section,
.testimonials-section {
    padding: 80px 0;
    position: relative;
}

.features-section {
    background: var(--bg-light);
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 15px;
}

.section-header p {
    font-size: 1.2rem;
    color: var(--text-light);
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 5px 20px var(--shadow-light);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px var(--shadow-medium);
}

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 32px;
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.feature-card p {
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.6;
}

.feature-list {
    list-style: none;
    text-align: left;
    margin: 20px 0;
}

.feature-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
    font-size: 14px;
    color: var(--text-light);
}

.feature-list i {
    color: var(--primary-color);
    font-size: 12px;
}

.btn-feature {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

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

/* ===== WHATSAPP CONNECTOR ===== */
.whatsapp-connector {
    margin-top: 20px;
}

.input-group {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.modern-input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid #e0e0e0;
    border-radius: var(--border-radius);
    font-size: 14px;
    transition: var(--transition);
}

.modern-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 211, 102, 0.1);
}

.btn-whatsapp {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
    white-space: nowrap;
}

.btn-whatsapp:hover {
    background: var(--primary-dark);
}

.qr-container {
    text-align: center;
    min-height: 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.qr-code {
    max-width: 200px;
    max-height: 200px;
    border: 2px solid var(--bg-light);
    border-radius: var(--border-radius);
}

.status-message {
    margin-top: 10px;
    font-size: 14px;
    color: var(--text-light);
}

/* ===== ANALYTICS PREVIEW ===== */
.analytics-preview {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.metric {
    flex: 1;
    text-align: center;
    padding: 15px;
    background: var(--bg-light);
    border-radius: var(--border-radius);
}

.metric-value {
    display: block;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 5px;
}

.metric-label {
    font-size: 12px;
    color: var(--text-light);
}

/* ===== FEEDBACK FORM ===== */
.feedback-form {
    max-width: 400px;
    margin: 20px auto 0;
}

.form-group {
    margin-bottom: 15px;
}

.feedback-form .modern-input {
    width: 100%;
}

.feedback-form textarea {
    resize: vertical;
    min-height: 80px;
}

.btn-feedback {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    justify-content: center;
}

.btn-feedback:hover {
    background: var(--primary-dark);
}

.feedback-display {
    margin-top: 20px;
    padding: 15px;
    background: var(--bg-light);
    border-radius: var(--border-radius);
    display: none;
}

.feedback-success {
    text-align: center;
    color: #155724;
    background: #d4edda;
    border: 1px solid #c3e6cb;
    padding: 20px;
    border-radius: var(--border-radius);
}

.feedback-success i {
    font-size: 32px;
    color: #28a745;
    margin-bottom: 15px;
}

.feedback-success h4 {
    color: #155724;
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.feedback-success p {
    margin-bottom: 10px;
    line-height: 1.6;
}

.feedback-success small {
    font-size: 0.9rem;
    opacity: 0.8;
}

.feedback-error {
    text-align: center;
    color: #721c24;
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    padding: 20px;
    border-radius: var(--border-radius);
}

.feedback-error i {
    font-size: 32px;
    color: #dc3545;
    margin-bottom: 15px;
}

.feedback-error h4 {
    color: #721c24;
    margin-bottom: 10px;
    font-size: 1.2rem;
}

.feedback-error p {
    margin-bottom: 10px;
    line-height: 1.6;
}

.feedback-error .btn-primary {
    margin-top: 15px;
}

/* ===== CONNECTION SECTION ===== */
.connection-steps {
    display: flex;
    justify-content: space-between;
    margin-bottom: 60px;
    gap: 30px;
}

.step {
    flex: 1;
    text-align: center;
    position: relative;
}

.step:not(:last-child)::after {
    content: '';
    position: absolute;
    top: 25px;
    right: -15px;
    width: 30px;
    height: 2px;
    background: var(--primary-color);
}

.step-number {
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 20px;
    margin: 0 auto 15px;
}

.step-content h3 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 10px;
    color: var(--text-dark);
}

.step-content p {
    color: var(--text-light);
    font-size: 14px;
}

.demo-area {
    display: flex;
    justify-content: center;
    align-items: center;
}

.demo-phone {
    width: 300px;
    height: 600px;
    background: #000;
    border-radius: 25px;
    padding: 20px;
    position: relative;
}

.phone-screen {
    width: 100%;
    height: 100%;
    background: white;
    border-radius: 15px;
    padding: 20px;
    overflow: hidden;
}

.chat-demo {
    height: 100%;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.chat-message {
    max-width: 80%;
    padding: 12px 16px;
    border-radius: 18px;
    position: relative;
}

.chat-message.received {
    background: #e5e5ea;
    color: #000;
    align-self: flex-start;
}

.chat-message.sent {
    background: var(--primary-color);
    color: white;
    align-self: flex-end;
}

.message-time {
    font-size: 11px;
    opacity: 0.7;
    margin-top: 5px;
    display: block;
}

/* ===== PAYMENTS SECTION ===== */
.payment-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-bottom: 40px;
}

.payment-card {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: 40px 30px;
    text-align: center;
    box-shadow: 0 5px 20px var(--shadow-light);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.payment-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
}

.payment-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px var(--shadow-medium);
}

.payment-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 20px;
    background: linear-gradient(45deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 32px;
}

.payment-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-dark);
}

.payment-card p {
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.6;
}

.payment-features {
    list-style: none;
    text-align: left;
    margin: 20px 0;
}

.payment-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
    font-size: 14px;
    color: var(--text-light);
}

.payment-features i {
    color: var(--primary-color);
    font-size: 12px;
}

.btn-payment {
    background: var(--primary-color);
    color: white;
    border: none;
    padding: 12px 20px;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    justify-content: center;
}

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

.payment-status {
    text-align: center;
    padding: 20px;
    border-radius: var(--border-radius);
    margin-top: 20px;
    display: none;
}

.payment-status.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
}

.payment-status.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* ===== TESTIMONIALS SECTION ===== */
.testimonials-section {
    background: var(--bg-light);
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.testimonial-card {
    background: white;
    border-radius: var(--border-radius-lg);
    padding: 30px;
    box-shadow: 0 5px 20px var(--shadow-light);
    transition: var(--transition);
    position: relative;
}

.testimonial-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px var(--shadow-medium);
}

.testimonial-content {
    text-align: left;
}

.quote-icon {
    color: var(--primary-color);
    font-size: 24px;
    margin-bottom: 15px;
}

.testimonial-content p {
    font-size: 1.1rem;
    line-height: 1.6;
    color: var(--text-dark);
    margin-bottom: 20px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 15px;
}

.author-info h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 5px;
}

.author-info span {
    font-size: 0.9rem;
    color: var(--text-light);
}

/* ===== CONTACT SECTION ===== */
.contact-section {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--accent-color) 100%);
    color: white;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.contact-info h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 20px;
}

.contact-info p {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 30px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 15px;
    font-size: 1rem;
}

.contact-item i {
    width: 20px;
    text-align: center;
    opacity: 0.8;
}

.contact-cta {
    text-align: center;
}

.btn-cta {
    background: white;
    color: var(--secondary-color);
    padding: 20px 40px;
    border-radius: var(--border-radius);
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    display: inline-flex;
    align-items: center;
    gap: 12px;
    transition: var(--transition);
    margin-bottom: 15px;
}

.btn-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.cta-note {
    font-size: 0.9rem;
    opacity: 0.8;
}

/* ===== FOOTER ===== */
.modern-footer {
    background: #1a1a1a;
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 60px;
    margin-bottom: 40px;
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 15px;
}

.footer-logo {
    width: 50px;
    height: 50px;
    border-radius: 10px;
    object-fit: cover;
}

.footer-brand .brand-text h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.footer-brand .brand-text p {
    color: #ccc;
    font-size: 0.9rem;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 40px;
}

.footer-section h4 {
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 15px;
}

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

.footer-section li {
    margin-bottom: 8px;
}

.footer-section a {
    color: #ccc;
    text-decoration: none;
    font-size: 0.9rem;
    transition: var(--transition);
}

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

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 20px;
    border-top: 1px solid #333;
    color: #999;
    font-size: 0.9rem;
}

.footer-social {
    display: flex;
    gap: 15px;
}

.footer-social a {
    color: #ccc;
    font-size: 20px;
    transition: var(--transition);
}

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

/* ===== BACK TO TOP ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 50px;
    height: 50px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    transition: var(--transition);
    z-index: 100;
}

.back-to-top:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
}

.back-to-top.visible {
    display: flex;
}

/* ===== MODAL ===== */
.modal-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    justify-content: center;
    align-items: center;
    z-index: 2000;
}

.modal-container.active {
    display: flex;
}

.modal-content {
    background: white;
    border-radius: var(--border-radius-lg);
    max-width: 90%;
    max-height: 90%;
    overflow: auto;
    position: relative;
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--text-light);
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--text-dark);
}

.modal-body {
    padding: 40px;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .modern-header .container {
        padding: 10px 15px;
    }
    
    .nav-toggle {
        display: flex;
    }
    
    .nav-list {
        position: fixed;
        top: 70px;
        left: -100%;
        width: 100%;
        background: white;
        flex-direction: column;
        padding: 20px;
        gap: 0;
        transition: var(--transition);
        box-shadow: 0 5px 20px var(--shadow-light);
    }
    
    .nav-list.active {
        left: 0;
    }
    
    .nav-list li {
        width: 100%;
        text-align: center;
        padding: 10px 0;
    }
    
    .hero-section {
        flex-direction: column;
        text-align: center;
        padding: 100px 0 50px;
    }
    
    .hero-content {
        margin-bottom: 40px;
    }
    
    .hero-actions {
        justify-content: center;
    }
    
    .hero-visual {
        position: relative;
        height: 300px;
    }
    
    .floating-card {
        position: static;
        margin: 10px;
        animation: none;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .connection-steps {
        flex-direction: column;
        gap: 20px;
    }
    
    .step:not(:last-child)::after {
        display: none;
    }
    
    .demo-phone {
        width: 250px;
        height: 500px;
    }
    
    .payment-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    .input-group {
        flex-direction: column;
    }
    
    .analytics-preview {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .section-header h2 {
        font-size: 1.8rem;
    }
    
    .feature-card,
    .payment-card {
        padding: 30px 20px;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
    }
    
    .back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
    }
}

/* ===== ANIMATIONS ===== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

/* ===== UTILITY CLASSES ===== */
.text-center {
    text-align: center;
}

.text-left {
    text-align: left;
}

.text-right {
    text-align: right;
}

.hidden {
    display: none;
}

.visible {
    display: block;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ===== PERFORMANCE OPTIMIZATIONS ===== */
.lazy-load {
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lazy-load.loaded {
    opacity: 1;
}

/* ===== PRINT STYLES ===== */
@media print {
    .modern-header,
    .back-to-top,
    .modal-container {
        display: none !important;
    }
    
    body {
        background: white !important;
        color: black !important;
    }
    
    .hero-section {
        background: white !important;
        color: black !important;
    }
}