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

:root {
    --primary-color: #6366f1;
    --secondary-color: #8b5cf6;
    --dark-bg: #0f172a;
    --light-text: #f1f5f9;
    --gray-text: #94a3b8;
    --success-color: #10b981;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--dark-bg);
    color: var(--light-text);
    min-height: 100vh;
    overflow-x: hidden;
}

.container {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
}

.content {
    position: relative;
    z-index: 10;
    max-width: 600px;
    width: 100%;
    text-align: center;
    animation: fadeInUp 1s ease-out;
}

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

.logo-wrapper {
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease-out;
}

.logo-image {
    max-width: 200px;
    width: 100%;
    height: auto;
    filter: drop-shadow(0 6px 30px rgba(99, 102, 241, 0.5)) brightness(1.1);
    transition: transform 0.3s ease;
}

.logo-image:hover {
    transform: scale(1.05);
}

.logo-icon {
    width: 80px;
    height: 80px;
    color: var(--primary-color);
    filter: drop-shadow(0 0 20px rgba(99, 102, 241, 0.5));
    transition: transform 0.3s ease;
}

.logo-icon:hover {
    transform: scale(1.1);
}

.title {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: fadeInUp 1s ease-out 0.2s both;
}

.subtitle {
    font-size: 1.25rem;
    color: var(--primary-color);
    font-weight: 600;
    margin-bottom: 1.5rem;
    animation: fadeInUp 1s ease-out 0.3s both;
}

.description {
    font-size: 1.125rem;
    color: var(--gray-text);
    line-height: 1.6;
    margin-bottom: 2.5rem;
    animation: fadeInUp 1s ease-out 0.5s both;
}

.progress-bar {
    width: 100%;
    height: 8px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: 10px;
    overflow: hidden;
    margin-bottom: 3rem;
    animation: fadeInUp 1s ease-out 0.7s both;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-color), var(--secondary-color));
    border-radius: 10px;
    animation: progress 2s ease-out forwards;
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.5);
}

@keyframes progress {
    from {
        width: 0%;
    }
    to {
        width: 65%;
    }
}

.newsletter {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 2rem;
    margin-bottom: 2.5rem;
    animation: fadeInUp 1s ease-out 0.9s both;
}

.newsletter h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--light-text);
}

.newsletter > p {
    color: var(--gray-text);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.email-form {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.email-input {
    flex: 1;
    padding: 0.875rem 1.25rem;
    border: 2px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    color: var(--light-text);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.email-input:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.08);
}

.email-input::placeholder {
    color: var(--gray-text);
}

.submit-btn {
    padding: 0.875rem 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border: none;
    border-radius: 12px;
    color: white;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

.submit-btn:active {
    transform: translateY(0);
}

.success-message {
    color: var(--success-color);
    font-weight: 500;
    opacity: 0;
    transition: opacity 0.3s ease;
    margin: 0;
}

.success-message.show {
    opacity: 1;
}

.social-links {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 2rem;
    animation: fadeInUp 1s ease-out 1s both;
}

.social-link {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    color: var(--gray-text);
    transition: all 0.3s ease;
}

.social-link svg {
    width: 20px;
    height: 20px;
}

.social-link:hover {
    background: rgba(99, 102, 241, 0.2);
    border-color: var(--primary-color);
    color: var(--primary-color);
    transform: translateY(-3px);
}

.footer {
    color: var(--gray-text);
    font-size: 0.875rem;
    animation: fadeInUp 1s ease-out 1.2s both;
}

.background-animation {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
}

.circle {
    position: absolute;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.1), transparent);
    animation: float 20s infinite ease-in-out;
}

.circle-1 {
    width: 300px;
    height: 300px;
    top: 10%;
    left: 10%;
    animation-delay: 0s;
}

.circle-2 {
    width: 400px;
    height: 400px;
    bottom: 10%;
    right: 10%;
    animation-delay: 5s;
}

.circle-3 {
    width: 250px;
    height: 250px;
    top: 50%;
    left: 50%;
    animation-delay: 10s;
}

@keyframes float {
    0%, 100% {
        transform: translate(0, 0) scale(1);
    }
    33% {
        transform: translate(50px, -50px) scale(1.1);
    }
    66% {
        transform: translate(-50px, 50px) scale(0.9);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .title {
        font-size: 2rem;
    }
    
    .description {
        font-size: 1rem;
    }
    
    .email-form {
        flex-direction: column;
    }
    
    .submit-btn {
        width: 100%;
    }
    
    .logo-image {
        max-width: 150px;
    }
    
    .logo-icon {
        width: 60px;
        height: 60px;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    .newsletter {
        padding: 1.5rem;
    }
    
    .circle-1, .circle-2, .circle-3 {
        width: 200px;
        height: 200px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 1rem;
    }
    
    .title {
        font-size: 1.75rem;
    }
    
    .social-links {
        gap: 0.75rem;
    }
    
    .social-link {
        width: 44px;
        height: 44px;
    }
}