/* Custom Palette: Graphite (#23272a), Silver (#444444), Purple (#6C3BAA) */

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

body {
    background-color: #23272a; /* Graphite */
    color: #f1f1f1;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.card {
    background-color: #444444; /* Silver */
    width: 100%;
    max-width: 450px;
    padding: 2.5rem;
    border-radius: 16px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
    border-top: 5px solid #6C3BAA; /* Deep Purple Accent */
    text-align: center;
}

h1 {
    margin-bottom: 1rem;
    font-size: 1.8rem;
    color: #ffffff;
}

p {
    margin-bottom: 2rem;
    color: #cccccc;
    font-size: 0.95rem;
}

.input-group {
    margin-bottom: 1.5rem;
    text-align: left;
}

input, textarea {
    width: 100%;
    padding: 12px;
    background-color: #23272a; /* Back to Graphite for fields */
    border: 1px solid #555;
    border-radius: 8px;
    color: white;
    font-size: 1rem;
    transition: border-color 0.3s;
}

input:focus, textarea:focus {
    outline: none;
    border-color: #6C3BAA; /* Purple Glow on focus */
}

button {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, #6C3BAA 0%, #6b3fa0 100%);
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    font-size: 1rem;
    transition: transform 0.2s, filter 0.2s;
}

button:hover {
    filter: brightness(1.2);
    transform: translateY(-2px);
}

#responseMsg {
    margin-top: 1.5rem;
    font-weight: 500;
    color: #6b3fa0; /* Accent Purple */
}