/* Reset & base */
* {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
    background: linear-gradient(135deg, #f4f6f8, #e9eef3);
    margin: 0;
    padding: 0;
    color: #333;
}

/* Layout */
.container {
    max-width: 700px;
    margin: 60px auto;
    padding: 20px;
}

/* Headings */
h1 {
    text-align: center;
    margin-bottom: 10px;
    font-size: 2rem;
}

p {
    text-align: center;
    color: #555;
}

/* Cards */
.card {
    background: #ffffff;
    padding: 24px;
    margin-top: 25px;
    border-radius: 10px;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.08);
}

/* Textarea */
textarea {
    width: 100%;
    height: 90px;
    padding: 12px;
    border-radius: 6px;
    border: 1px solid #ccc;
    font-size: 0.95rem;
    resize: none;
    margin-bottom: 12px;
}

textarea:focus {
    outline: none;
    border-color: #4f46e5;
}

/* Buttons */
button {
    background-color: #4f46e5;
    color: white;
    border: none;
    padding: 10px 18px;
    border-radius: 6px;
    font-size: 0.95rem;
    cursor: pointer;
    transition: background-color 0.2s ease, transform 0.1s ease;
}

button:hover {
    background-color: #4338ca;
}

button:active {
    transform: scale(0.98);
}

/* Status text */
#status {
    margin-top: 10px;
    font-size: 0.9rem;
    color: #555;
}

/* Messages list */
#messagesList {
    list-style: none;
    padding: 0;
    margin-top: 15px;
}

#messagesList li {
    background: #f9fafb;
    padding: 10px 12px;
    margin-bottom: 8px;
    border-radius: 6px;
    font-size: 0.9rem;
    border-left: 4px solid #4f46e5;
}

/* Responsive */
@media (max-width: 600px) {
    .container {
        margin: 30px auto;
        padding: 15px;
    }

    h1 {
        font-size: 1.6rem;
    }
}