/* === Общие стили === */
body {
    font-family: "Segoe UI", Arial, sans-serif;
    background: linear-gradient(180deg, #eef3f8 0%, #ffffff 100%);
    color: #222;
    margin: 0;
    padding: 0;
}

/* === Навигация === */
nav {
    background: #0066cc;
    padding: 12px 20px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.15);
}

nav a {
    color: #fff;
    text-decoration: none;
    margin-right: 20px;
    font-weight: 500;
    transition: color 0.2s;
}

nav a:hover {
    color: #ffe37a;
}

h2 {
    text-align: center;
    color: #004080;
    margin-top: 25px;
    letter-spacing: 1px;
}

/* === Контейнер контента === */
.container {
    max-width: 900px;
    margin: 30px auto;
    background: #fff;
    padding: 25px;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

/* === Таблицы === */
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    background: #fff;
    border-radius: 8px;
    overflow: hidden;
}

th, td {
    padding: 10px 12px;
    border-bottom: 1px solid #ddd;
    text-align: left;
}

th {
    background-color: #f0f6ff;
    color: #003366;
    font-weight: bold;
}

tr:hover {
    background-color: #f9fbff;
}

/* === Формы === */
form {
    margin: 20px auto;
    text-align: left;
}

form label {
    font-weight: 600;
    color: #003366;
}

form input[type="text"],
form input[type="number"],
form input[type="date"],
form select {
    width: 100%;
    padding: 8px;
    margin: 6px 0 14px 0;
    border: 1px solid #bbb;
    border-radius: 5px;
    box-sizing: border-box;
    transition: border-color 0.2s, box-shadow 0.2s;
}

form input:focus,
form select:focus {
    border-color: #0066cc;
    box-shadow: 0 0 4px rgba(0,102,204,0.3);
    outline: none;
}

/* === Кнопки === */
button,
input[type="submit"] {
    background-color: #0074cc;
    color: #fff;
    border: none;
    padding: 10px 18px;
    border-radius: 6px;
    font-size: 15px;
    cursor: pointer;
    transition: background-color 0.25s, transform 0.1s;
}

button:hover,
input[type="submit"]:hover {
    background-color: #005fa3;
    transform: translateY(-1px);
}

button:active,
input[type="submit"]:active {
    transform: translateY(0);
}

/* === Сообщения === */
p.success {
    color: #2e8b57;
    background: #e8f7ee;
    padding: 10px;
    border-radius: 6px;
    border: 1px solid #b8e0c3;
}

p.error {
    color: #b22222;
    background: #ffeaea;
    padding: 10px;
    border-radius: 6px;
    border: 1px solid #f5b5b5;
}

/* === Оформление блока кода === */
pre {
    background: #f4f4f4;
    border-left: 4px solid #0074cc;
    padding: 12px;
    border-radius: 6px;
    overflow-x: auto;
}

/* === Поисковая форма === */
.search-form {
    text-align: center;
    margin-top: 15px;
}

.search-form input[type="text"] {
    width: 300px;
    padding: 8px;
    border-radius: 5px;
    border: 1px solid #aaa;
    transition: 0.2s;
}

.search-form input[type="text"]:focus {
    border-color: #0074cc;
    box-shadow: 0 0 5px rgba(0,116,204,0.3);
}

/* === Блок добавления (форма) === */
.add-form {
    background: #ffffff;
    max-width: 450px;
    margin: 20px auto;
    padding: 25px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.add-form h3 {
    text-align: center;
    color: #003366;
}

.add-form input[type="submit"] {
    display: block;
    width: 100%;
    margin-top: 10px;
}