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

body {
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    color: #2c3e50;
    background: white;
    min-height: 100vh;
}

/* Animations d'apparition */
.animate-slide-up {
    opacity: 0;
    transform: translateY(30px);
    animation: slideUp 0.8s ease-out forwards;
}

.animate-slide-up:nth-child(1) { animation-delay: 0.2s; }
.animate-slide-up:nth-child(2) { animation-delay: 0.4s; }
.animate-slide-up:nth-child(3) { animation-delay: 0.6s; }
.animate-slide-up:nth-child(4) { animation-delay: 0.8s; }
.animate-slide-up:nth-child(5) { animation-delay: 1s; }

@keyframes slideUp {
    0% {
        opacity: 0;
        transform: translateY(30px);
    }
    100% {
        opacity: 1;
        transform: translateY(0);
    }
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

main {
    flex: 1;
    text-align: center;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.logo {
    max-width: 150px;
    height: auto;
    margin: 0 auto 40px auto;
    display: block;
}

h1 {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #2c3e50;
}

.subtitle {
    font-size: 1.1rem;
    color: #6c757d;
    margin-bottom: 40px;
    font-weight: 400;
}

.subscribe-form {
    max-width: 400px;
    margin: 0 auto;
}

.input-group {
    display: flex;
    border: 2px solid #e9ecef;
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 20px;
    transition: border-color 0.3s ease;
}

.input-group:focus-within {
    border-color: #f39c12;
}

.input-group input {
    flex: 1;
    border: none;
    background: white;
    padding: 15px 20px;
    font-size: 1rem;
    outline: none;
}

.input-group input::placeholder {
    color: #adb5bd;
}

.input-group button {
    background: #f39c12;
    border: none;
    color: white;
    padding: 15px 25px;
    cursor: pointer;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: background-color 0.3s ease;
}

.input-group button:hover {
    background: #e67e22;
}

.message {
    padding: 20px;
    border-radius: 8px;
    font-weight: 500;
    opacity: 0;
    transition: all 0.3s ease;
    max-width: 500px;
    margin: 20px auto 0 auto;
    line-height: 1.5;
}

.message.show {
    opacity: 1;
}

.message.success {
    background: #2c3e50;
    color: white;
    border: 2px solid #f39c12;
}

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



footer {
    text-align: center;
    padding: 30px 0;
    color: #6c757d;
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 20px;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    .input-group {
        flex-direction: column;
    }
    
    .input-group button {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.8rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
}