/* Reset + base styles */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Segoe UI', sans-serif;
    background-color: #f4f6f9;
    color: #333;
    line-height: 1.6;
    padding: 20px;
}

/* Container & layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
}

/* Cards */
.card {
    background-color: #fff;
    border-radius: 8px;
    padding: 25px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
    margin-bottom: 20px;
}

/* Headings */
h1, h2, h3 {
    margin-bottom: 15px;
    color: #222;
}

/* Forms */
form label {
    display: block;
    margin: 10px 0 5px;
    font-weight: 600;
}

form input[type="text"],
form input[type="email"],
form input[type="password"],
form input[type="date"],
form textarea,
form select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 14px;
    background-color: #fff;
}

form textarea {
    resize: vertical;
    min-height: 100px;
}

form button {
    margin-top: 15px;
    padding: 10px 15px;
    background-color: #0057d9;
    color: #fff;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    cursor: pointer;
    transition: background 0.2s ease-in-out;
}

form button:hover {
    background-color: #003ea8;
}

/* Error + success messages */
.error-message {
    color: #d8000c;
    background-color: #ffd2d2;
    padding: 10px;
    border-radius: 5px;
    margin-bottom: 15px;
}

.success-message {
    color: #270;
    background-color: #dff2bf;
    padding: 10px;
    border-radius: 5px;
    margin-bottom: 15px;
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
    background-color: white;
}

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

table th {
    background-color: #f0f2f5;
    font-weight: bold;
}

table tr:hover {
    background-color: #f9f9f9;
}

/* Navigation bar */
.navbar {
    background-color: #fff;
    padding: 15px 25px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.06);
    margin-bottom: 30px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.navbar a {
    color: #333;
    text-decoration: none;
    font-weight: 600;
    margin-left: 20px;
}

.navbar a:hover {
    text-decoration: underline;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 8px 14px;
    border: none;
    background-color: #0057d9;
    color: #fff;
    font-size: 14px;
    border-radius: 6px;
    text-decoration: none;
    cursor: pointer;
    transition: background-color 0.2s ease-in-out;
}

.btn:hover {
    background-color: #003ea8;
}

/* Footer */
.footer {
    margin-top: 50px;
    text-align: center;
    font-size: 13px;
    color: #999;
}