/* Reset e configurações base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Cores do WhatsApp */
    --whatsapp-green: #25D366;
    --whatsapp-green-dark: #128C7E;
    --whatsapp-green-light: #DCF8C6;
    --whatsapp-teal: #075E54;
    --whatsapp-blue: #34B7F1;
    
    /* Tema escuro */
    --bg-primary: #0D1117;
    --bg-secondary: #161B22;
    --bg-tertiary: #21262D;
    --text-primary: #F0F6FC;
    --text-secondary: #8B949E;
    --text-muted: #6E7681;
    
    /* Bordas e sombras */
    --border-color: #30363D;
    --shadow-light: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
    --shadow-medium: 0 3px 6px rgba(0, 0, 0, 0.16), 0 3px 6px rgba(0, 0, 0, 0.23);
    --shadow-heavy: 0 10px 20px rgba(0, 0, 0, 0.19), 0 6px 6px rgba(0, 0, 0, 0.23);
    
    /* Transições */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
    --transition-slow: 0.5s ease;
}

body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    min-height: 100vh;
    overflow-x: hidden;
}

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
    100% {
        transform: scale(1);
    }
}

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 5px var(--whatsapp-green);
    }
    50% {
        box-shadow: 0 0 20px var(--whatsapp-green), 0 0 30px var(--whatsapp-green);
    }
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background: linear-gradient(135deg, var(--whatsapp-teal) 0%, var(--whatsapp-green-dark) 100%);
    color: white;
    padding: 1rem 0;
    box-shadow: var(--shadow-medium);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
    animation: fadeInUp 0.6s ease;
}

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

.logo {
    font-size: 1.8rem;
    font-weight: bold;
    transition: var(--transition-medium);
}

.logo:hover {
    transform: scale(1.05);
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.5);
}

.logo a {
    color: white;
    text-decoration: none;
    transition: var(--transition-medium);
}

nav ul {
    list-style: none;
    display: flex;
    gap: 2rem;
}

nav a {
    color: white;
    text-decoration: none;
    transition: var(--transition-fast);
    padding: 0.5rem 1rem;
    border-radius: 4px;
}

nav a:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--whatsapp-teal) 0%, var(--whatsapp-green) 50%, var(--whatsapp-green-dark) 100%);
    color: white;
    text-align: center;
    padding: 6rem 0;
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="%23ffffff" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>') repeat;
    animation: pulse 4s ease-in-out infinite;
}

.hero-content {
    position: relative;
    z-index: 2;
    animation: fadeInUp 1s ease;
}

.hero h1 {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1.2s ease;
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    animation: fadeInUp 1.4s ease;
}

/* Botões */
.btn {
    display: inline-block;
    padding: 14px 32px;
    text-decoration: none;
    border-radius: 12px;
    transition: var(--transition-medium);
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    position: relative;
    overflow: hidden;
    text-transform: uppercase;
    letter-spacing: 1px;
    /* Cor branca para o texto */
    color: white;
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
    border: 2px solid var(--border-color);
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: var(--transition-medium);
}

.btn:hover::before {
    left: 100%;
}

.btn:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-heavy);
    /* Hover verde WhatsApp */
    background: linear-gradient(135deg, var(--whatsapp-green) 0%, var(--whatsapp-green-dark) 100%);
    color: white;
    border-color: var(--whatsapp-green);
}

.btn:active {
    transform: translateY(-1px);
}

.btn-primary {
    background: linear-gradient(135deg, var(--whatsapp-green) 0%, var(--whatsapp-green-dark) 100%);
    color: white;
    box-shadow: var(--shadow-medium);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--whatsapp-green-dark) 0%, var(--whatsapp-teal) 100%);
    animation: glow 2s ease-in-out infinite;
    color: white;
}

.btn-secondary {
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, var(--bg-secondary) 100%);
    color: white;
    border: 2px solid var(--whatsapp-green);
}

.btn-secondary:hover {
    background: var(--whatsapp-green);
    color: white;
}

/* Garantir que textos em cards de pricing sejam visíveis */
.pricing-card {
    background: var(--bg-tertiary);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow-medium);
    text-align: center;
    position: relative;
    border: 1px solid var(--border-color);
    transition: var(--transition-medium);
    animation: fadeInUp 1.2s ease;
    color: var(--text-primary); /* Garantir texto visível */
}

.pricing-card h3 {
    color: var(--text-primary); /* Título branco */
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.pricing-card p {
    color: var(--text-secondary); /* Descrição em cor secundária */
    margin: 1rem 0;
}

.pricing-card ul {
    color: var(--text-primary); /* Lista em branco */
}

.pricing-card ul li {
    color: var(--text-primary); /* Itens da lista em branco */
    margin: 0.5rem 0;
}

.btn-secondary:hover {
    background: var(--whatsapp-green);
    color: white;
}

/* Cards e Seções */
.section {
    padding: 5rem 0;
    animation: fadeInUp 0.8s ease;
}

.features {
    background: var(--bg-secondary);
    position: relative;
}

.features::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--whatsapp-green), transparent);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
    color: var(--text-primary);
    position: relative;
    animation: fadeInUp 1s ease;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--whatsapp-green), var(--whatsapp-blue));
    border-radius: 2px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature {
    background: var(--bg-tertiary);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow-medium);
    text-align: center;
    transition: var(--transition-medium);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
    animation: fadeInUp 1s ease;
}

.feature::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--whatsapp-green), var(--whatsapp-blue));
    transform: scaleX(0);
    transition: var(--transition-medium);
}

.feature:hover::before {
    transform: scaleX(1);
}

.feature:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-heavy);
    border-color: var(--whatsapp-green);
}

.feature h3 {
    color: var(--whatsapp-green);
    margin-bottom: 1rem;
    font-size: 1.4rem;
}

.feature p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Pricing */
.pricing {
    background: transparent;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.pricing-card {
    background: var(--bg-tertiary);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow-medium);
    text-align: center;
    position: relative;
    border: 1px solid var(--border-color);
    transition: var(--transition-medium);
    animation: fadeInUp 1.2s ease;
}

.pricing-card.featured {
    border: 2px solid var(--whatsapp-green);
    transform: scale(1.05);
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, rgba(37, 211, 102, 0.1) 100%);
}

.pricing-card.featured::before {
    content: 'MAIS POPULAR';
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--whatsapp-green);
    color: white;
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: bold;
    letter-spacing: 1px;
}

.pricing-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-heavy);
}

.pricing-card.featured:hover {
    transform: translateY(-8px) scale(1.07);
}

.price {
    font-size: 3rem;
    font-weight: bold;
    color: var(--whatsapp-green);
    margin: 1.5rem 0;
    text-shadow: 0 0 10px rgba(37, 211, 102, 0.3);
}

.price-period {
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: normal;
}

/* Formulários */
.form-container {
    max-width: 450px;
    margin: 3rem auto;
    background: var(--bg-tertiary);
    padding: 3rem;
    border-radius: 16px;
    box-shadow: var(--shadow-heavy);
    border: 1px solid var(--border-color);
    animation: fadeInUp 1s ease;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--text-primary);
}

.form-group input {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    background: var(--bg-secondary);
    color: var(--text-primary);
    transition: var(--transition-medium);
}

.form-group input:focus {
    outline: none;
    border-color: var(--whatsapp-green);
    box-shadow: 0 0 0 3px rgba(37, 211, 102, 0.1);
    background: var(--bg-primary);
}

.form-group input::placeholder {
    color: var(--text-muted);
}

/* Alertas */
.alert {
    padding: 1rem 1.5rem;
    margin: 1.5rem 0;
    border-radius: 8px;
    border-left: 4px solid;
    animation: fadeInLeft 0.5s ease;
}

.alert-success {
    background: rgba(37, 211, 102, 0.1);
    color: var(--whatsapp-green);
    border-left-color: var(--whatsapp-green);
}

.alert-error {
    background: rgba(220, 53, 69, 0.1);
    color: #ff6b6b;
    border-left-color: #ff6b6b;
}

.alert-info {
    background: rgba(52, 183, 241, 0.1);
    color: var(--whatsapp-blue);
    border-left-color: var(--whatsapp-blue);
}

/* Dashboard */
.dashboard {
    padding: 3rem 0;
    min-height: calc(100vh - 200px);
}

.dashboard-header {
    background: var(--bg-tertiary);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow-medium);
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
    animation: fadeInUp 0.8s ease;
}

.dashboard-header h1 {
    color: var(--whatsapp-green);
    margin-bottom: 0.5rem;
}

.dashboard-header p {
    color: var(--text-secondary);
}

.subscription-status {
    background: var(--bg-tertiary);
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: var(--shadow-medium);
    margin-bottom: 2rem;
    border: 1px solid var(--border-color);
    animation: fadeInUp 1s ease;
}

.status-active {
    border-left: 5px solid var(--whatsapp-green);
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, rgba(37, 211, 102, 0.05) 100%);
}

.status-expired {
    border-left: 5px solid #ff6b6b;
    background: linear-gradient(135deg, var(--bg-tertiary) 0%, rgba(255, 107, 107, 0.05) 100%);
}

/* QR Code */
.qr-code {
    text-align: center;
    margin: 2rem 0;
    animation: fadeInUp 1.2s ease;
}

.qr-code img {
    max-width: 300px;
    border: 3px solid var(--whatsapp-green);
    border-radius: 16px;
    box-shadow: var(--shadow-heavy);
    transition: var(--transition-medium);
}

.qr-code img:hover {
    transform: scale(1.05);
    box-shadow: 0 0 30px rgba(37, 211, 102, 0.3);
}

/* Timer */
.timer {
    background: var(--bg-tertiary);
    padding: 1.5rem;
    border-radius: 12px;
    text-align: center;
    margin: 1rem 0;
    border: 2px solid var(--whatsapp-green);
    animation: pulse 2s ease-in-out infinite;
}

.timer-display {
    font-size: 2rem;
    font-weight: bold;
    color: var(--whatsapp-green);
    text-shadow: 0 0 10px rgba(37, 211, 102, 0.3);
}

/* PIX Code */
.pix-code {
    background: var(--bg-secondary);
    padding: 1rem;
    border-radius: 8px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    margin: 1rem 0;
    word-break: break-all;
    position: relative;
}

.copy-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    background: var(--whatsapp-green);
    color: white;
    border: none;
    padding: 5px 10px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.8rem;
    transition: var(--transition-fast);
}

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

/* Footer */
footer {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    text-align: center;
    padding: 3rem 0;
    margin-top: 4rem;
    border-top: 1px solid var(--border-color);
    animation: fadeInUp 1s ease;
}

footer p {
    margin-bottom: 1rem;
}

footer a {
    color: var(--whatsapp-green);
    text-decoration: none;
    transition: var(--transition-medium);
}

footer a:hover {
    color: var(--whatsapp-green-dark);
    text-shadow: 0 0 5px rgba(37, 211, 102, 0.5);
}

/* Responsividade */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .pricing-card.featured {
        transform: none;
    }
    
    .pricing-card.featured:hover {
        transform: translateY(-8px) scale(1.02);
    }
    
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }
    
    nav ul {
        gap: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .form-container {
        margin: 2rem 15px;
        padding: 2rem;
    }
    
    .features-grid,
    .pricing-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .section {
        padding: 3rem 0;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 4rem 0;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .btn {
        padding: 12px 24px;
        font-size: 0.9rem;
    }
    
    .feature,
    .pricing-card {
        padding: 2rem;
    }
    
    .price {
        font-size: 2.5rem;
    }
}

/* Animações de entrada para elementos que aparecem no scroll */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.6s ease;
}

.animate-on-scroll.animated {
    opacity: 1;
    transform: translateY(0);
}

/* Loading spinner */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--whatsapp-green);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Efeitos especiais */
.glow-effect {
    position: relative;
}

.glow-effect::before {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: linear-gradient(45deg, var(--whatsapp-green), var(--whatsapp-blue), var(--whatsapp-green));
    border-radius: inherit;
    z-index: -1;
    opacity: 0;
    transition: var(--transition-medium);
}

.glow-effect:hover::before {
    opacity: 1;
    animation: glow 2s ease-in-out infinite;
}