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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #ffffff;
    min-height: 100vh;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
}

header {
    background: #dc2626;
    padding: 2rem 0;
    margin: 0 0 3rem 0;
    text-align: center;
    color: white;
    box-shadow: 0 4px 12px rgba(220, 38, 38, 0.3);
    width: 100%;
}

header h1 {
    font-size: 2.2rem;
    font-weight: 700;
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 1px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.intro {
    font-size: 1.2rem;
    font-weight: 500;
    max-width: 800px;
    margin: 0 auto 3rem;
    line-height: 1.7;
    background: white;
    color: #333;
    padding: 2.5rem 3rem;
    border-radius: 12px;
    border: 5px solid #dc2626;
    box-shadow: 0 8px 25px rgba(220, 38, 38, 0.1);
    text-align: left;
}

.intro .example {
    color: #9ca3af;
    font-style: italic;
    font-weight: 400;
}

.form {
    background: white;
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    border: 1px solid #e5e7eb;
}

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

label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #374151;
    font-size: 0.95rem;
}

input, textarea {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: #f9fafb;
}

input:focus, textarea:focus {
    outline: none;
    border-color: #dc2626;
    background: white;
    box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

input::placeholder, textarea::placeholder {
    color: #9ca3af;
}

textarea {
    resize: vertical;
    min-height: 100px;
}

.submit-btn {
    width: 100%;
    padding: 1rem 2rem;
    background: #dc2626;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 1rem;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(220, 38, 38, 0.3);
}

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

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

.confirmation-message {
    background: white;
    padding: 4rem 3rem;
    border-radius: 20px;
    box-shadow: 0 25px 50px rgba(0,0,0,0.15);
    text-align: center;
    animation: fadeInUp 0.6s ease-out;
    border: 3px solid #dc2626;
    position: relative;
    max-width: 600px;
    margin: 0 auto;
}

.confirmation-message::before {
    content: '';
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 60px;
    background: #dc2626;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 20px rgba(220, 38, 38, 0.3);
}

.confirmation-message::after {
    content: '✓';
    position: absolute;
    top: 5px;
    left: 50%;
    transform: translateX(-50%);
    color: white;
    font-size: 2rem;
    font-weight: bold;
}

.confirmation-message h2 {
    color: #dc2626;
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.confirmation-message p {
    font-size: 1.3rem;
    color: #374151;
    font-weight: 500;
    line-height: 1.6;
}

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

.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255,255,255,.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: spin 1s ease-in-out infinite;
    margin-right: 0.5rem;
}

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

.error-message {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: #dc2626;
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    .form {
        padding: 1.5rem;
    }
    
    .confirmation-message {
        padding: 2rem 1.5rem;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 1.75rem;
    }
    
    .intro {
        font-size: 1rem;
    }
    
    .form {
        padding: 1rem;
    }
    
    input, textarea {
        padding: 0.6rem 0.8rem;
    }
}