body {
    margin: 0;
    padding: 0;
    background-color: #f4f6f8;
    font-family: Arial, sans-serif;
    color: #333;
}

.container {
    width: 90%;
    max-width: 1000px;
    margin: 30px auto;
    background-color: #ffffff;
    padding: 25px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.08);
    border-radius: 8px;
}

h1, h2, h3 {
    color: #2c3e50;
}

.site-header {
    background-color: #2c3e50;
    padding: 20px 25px;
    border-radius: 6px 6px 0 0;
    margin-bottom: 0;
}

.site-header h1 {
    margin: 0;
    color: #ffffff;
    font-size: 28px;
}

.menu {
    background-color: #34495e;
    padding: 0;
    border-radius: 0 0 6px 6px;
    margin-bottom: 25px;
}

.menu ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
}

.menu ul li {
    margin: 0;
}

.menu ul li a {
    display: block;
    padding: 14px 20px;
    color: #ffffff;
    text-decoration: none;
    font-weight: bold;
}

.menu ul li a:hover {
    background-color: #2c3e50;
}

form {
    margin-top: 20px;
}

label {
    display: block;
    margin-top: 12px;
    margin-bottom: 6px;
    font-weight: bold;
}

/* ✅ ОБНОВЛЕНО: добавлен password */
input[type="text"],
input[type="password"],
input[type="number"],
select {
    width: 100%;
    max-width: 400px;
    padding: 10px;
    border: 1px solid #cfd8dc;
    border-radius: 4px;
    box-sizing: border-box;
    font-size: 14px;
}

/* ✅ одинаковый placeholder */
input::placeholder {
    font-size: 14px;
    color: #999;
}

/* для старых браузеров */
input::-webkit-input-placeholder {
    font-size: 14px;
    color: #999;
}

input:-ms-input-placeholder {
    font-size: 14px;
    color: #999;
}

button,
input[type="submit"] {
    margin-top: 18px;
    padding: 10px 18px;
    background-color: #27ae60;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 15px;
}

button:hover,
input[type="submit"]:hover {
    background-color: #219150;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    background-color: #fff;
}

table th,
table td {
    border: 1px solid #cfd8dc;
    padding: 10px;
    text-align: left;
}

table th {
    background-color: #ecf0f1;
}

.message-success {
    margin-top: 20px;
    padding: 12px;
    background-color: #d4edda;
    color: #155724;
    border: 1px solid #b7dfc2;
    border-radius: 4px;
}

.message-error {
    margin-top: 20px;
    padding: 12px;
    background-color: #f8d7da;
    color: #721c24;
    border: 1px solid #efb7be;
    border-radius: 4px;
}

.info-box {
    margin-top: 25px;
    padding: 15px;
    background-color: #eef5f9;
    border-left: 5px solid #3498db;
    border-radius: 4px;
}

a {
    color: #2980b9;
}

a:hover {
    text-decoration: underline;
}