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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    overflow-x: hidden;
}

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

/* Header */
.header {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    height: 50px;
    width: auto;
}

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

.nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 25px;
}

.nav-links a:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

/* Seção principal */
.main-section {
    padding: 4rem 0;
    text-align: center;
    position: relative;
}

.main-title {
    font-size: 3.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
    animation: fadeInUp 1s ease-out;
}

.main-subtitle {
    font-size: 1.3rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 3rem;
    animation: fadeInUp 1s ease-out 0.2s both;
}

/* Card de teste */
.test-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-radius: 20px;
    padding: 3rem;
    margin: 2rem auto;
    max-width: 600px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    animation: fadeInUp 1s ease-out 0.4s both;
    border: 1px solid rgba(255, 255, 255, 0.3);
}

.test-step {
    margin-bottom: 2rem;
}

.step-number {
    display: inline-block;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border-radius: 50%;
    line-height: 40px;
    font-weight: bold;
    margin-bottom: 1rem;
}

.step-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: #333;
    margin-bottom: 1rem;
}

.step-description {
    color: #666;
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

/* Campo de email */
.email-field {
    position: relative;
    margin-bottom: 2rem;
}

.email-input {
    width: 100%;
    padding: 1rem 3rem 1rem 1rem;
    font-size: 1.1rem;
    border: 2px solid #e1e5e9;
    border-radius: 12px;
    background: #f8f9fa;
    transition: all 0.3s ease;
    font-family: 'Courier New', monospace;
}

.email-input:focus {
    outline: none;
    border-color: #667eea;
    background: white;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.copy-btn {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: #667eea;
    color: white;
    border: none;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.9rem;
}

.copy-btn:hover {
    background: #5a6fd8;
    transform: translateY(-50%) scale(1.05);
}

.copy-btn.copied {
    background: #28a745;
}

/* Botão principal */
.check-btn {
    background: linear-gradient(135deg, #667eea, #764ba2);
    color: white;
    border: none;
    padding: 1rem 3rem;
    font-size: 1.2rem;
    font-weight: 600;
    border-radius: 50px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 10px 30px rgba(102, 126, 234, 0.3);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.check-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(102, 126, 234, 0.4);
}

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

.check-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Loading spinner */
.loading {
    display: none;
    margin: 1rem 0;
}

.spinner {
    border: 3px solid #f3f3f3;
    border-top: 3px solid #667eea;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 0 auto;
}

/* Seção informativa */
.info-section {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    padding: 4rem 0;
    margin-top: 4rem;
}

.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.info-card {
    background: rgba(255, 255, 255, 0.1);
    padding: 2rem;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    transition: all 0.3s ease;
}

.info-card:hover {
    transform: translateY(-5px);
    background: rgba(255, 255, 255, 0.15);
}

.info-card h3 {
    color: white;
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.info-card p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

/* Footer */
.footer {
    background: rgba(0, 0, 0, 0.2);
    color: rgba(255, 255, 255, 0.8);
    text-align: center;
    padding: 2rem 0;
    margin-top: 4rem;
}

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

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

/* Responsividade */
@media (max-width: 768px) {
    .main-title {
        font-size: 2.5rem;
    }
    
    .main-subtitle {
        font-size: 1.1rem;
    }
    
    .test-card {
        padding: 2rem;
        margin: 1rem;
    }
    
    .nav-links {
        display: none;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .main-title {
        font-size: 2rem;
    }
    
    .test-card {
        padding: 1.5rem;
    }
    
    .email-input {
        font-size: 1rem;
    }
    
    .check-btn {
        padding: 0.8rem 2rem;
        font-size: 1rem;
    }
}

/* Efeitos visuais adicionais */
.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
}

.floating-element {
    position: absolute;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.floating-element:nth-child(1) {
    width: 80px;
    height: 80px;
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.floating-element:nth-child(2) {
    width: 60px;
    height: 60px;
    top: 60%;
    right: 10%;
    animation-delay: 2s;
}

.floating-element:nth-child(3) {
    width: 40px;
    height: 40px;
    top: 80%;
    left: 20%;
    animation-delay: 4s;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
        opacity: 0.3;
    }
    50% {
        transform: translateY(-20px) rotate(180deg);
        opacity: 0.6;
    }
}