/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
    width: 100%;
    flex: 1;
}

/* Header styles */
header {
    text-align: center;
    padding: 1.5rem 0;
}

h1 {
    font-size: clamp(2rem, 5vw, 3rem);
    color: #2c3e50;
    margin-bottom: 0.5rem;
}

.tagline {
    font-size: clamp(1rem, 3vw, 1.2rem);
    color: #7f8c8d;
}

/* Hero section */
.hero {
    text-align: center;
    padding: clamp(2rem, 5vw, 4rem) 0;
}

.hero h2 {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    margin-bottom: 1rem;
    color: #2c3e50;
}

.hero p {
    font-size: clamp(1rem, 3vw, 1.2rem);
    color: #666;
    max-width: 600px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Form styles */
.signup-form {
    max-width: 500px;
    margin: 0 auto;
    padding: 1rem;
}

.form-group {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

input[type="email"] {
    flex: 1;
    min-width: 200px;
    padding: 0.8rem;
    border: 2px solid #ddd;
    border-radius: 5px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

input[type="email"]:focus {
    outline: none;
    border-color: #3498db;
}

button {
    padding: 0.8rem 1.5rem;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.3s;
    white-space: nowrap;
}

button:hover {
    background-color: #2980b9;
}

button:disabled {
    background-color: #95a5a6;
    cursor: not-allowed;
}

/* Messages */
#success-message,
#error-message {
    margin-top: 1rem;
    padding: 0.5rem;
    border-radius: 5px;
    text-align: center;
}

#success-message {
    background-color: #d4edda;
    color: #155724;
}

#error-message {
    background-color: #f8d7da;
    color: #721c24;
}

/* Footer styles */
footer {
    text-align: center;
    padding: 1.5rem 0;
    color: #7f8c8d;
    margin-top: auto;
}

/* Responsive design */
@media (max-width: 768px) {
    .container {
        padding: 0.5rem;
    }

    .form-group {
        flex-direction: column;
    }
    
    button {
        width: 100%;
    }
    
    .signup-form {
        padding: 0.5rem;
    }

    input[type="email"] {
        width: 100%;
    }
}

/* Small mobile devices */
@media (max-width: 480px) {
    header {
        padding: 1rem 0;
    }

    .hero {
        padding: 1.5rem 0;
    }

    .hero p {
        padding: 0 0.5rem;
    }
}

/* Landscape mode */
@media (max-height: 500px) and (orientation: landscape) {
    .container {
        padding: 0.5rem;
    }

    header {
        padding: 0.5rem 0;
    }

    .hero {
        padding: 1rem 0;
    }
}