/* style.css */
body {
    margin: 0;
    font-family: "Segoe UI", "Arial", sans-serif;
    background: #f5f7fa;
    color: #333;
}

header {
    background: #2d8cf0;
    color: #fff;
    padding: 15px 0;
}

nav {
    text-align: center;
}

nav a {
    color: #fff;
    text-decoration: none;
    margin: 0 20px;
    font-weight: bold;
    font-size: 1.1em;
    transition: color 0.2s;
}

nav a:hover {
    color: #ffe580;
}

.container {
    width: 90%;
    max-width: 800px;
    margin: 40px auto;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 4px 16px rgba(0,0,0,.07);
    padding: 32px 24px;
}

h1, h2 {
    color: #2d8cf0;
}

.img-grid {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    justify-content: center;
}

.img-grid img {
    width: 220px;
    height: 140px;
    object-fit: cover;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,.10);
    transition: transform 0.2s;
}

.img-grid img:hover {
    transform: scale(1.05);
}

.form-group {
    margin-bottom: 16px;
}

input, textarea {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 15px;
    margin-top: 4px;
}

button {
    background: #2d8cf0;
    color: #fff;
    border: none;
    padding: 9px 20px;
    border-radius: 5px;
    font-size: 1em;
    cursor: pointer;
    transition: background 0.2s;
}

button:hover {
    background: #136ef7;
}

.message-list {
    list-style: none;
    padding: 0;
}

.message-list li {
    background: #f6fafd;
    margin-bottom: 14px;
    border-radius: 6px;
    padding: 10px 14px;
    border-left: 4px solid #2d8cf0;
    box-shadow: 0 1px 3px rgba(0,0,0,.06);
}