/* General Styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: #f3f5f9;
    margin: 0;
    padding: 0;
    color: #333;
}

.container {
    max-width: 900px;
    margin: 2rem auto;
    padding: 1.5rem;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

header {
    background: #007bff;
    color: #fff;
    padding: 1rem;
    text-align: center;
    position: relative;
}

header h1 {
    margin: 0;
}

header a {
    color: #fff;
    text-decoration: none;
    margin: 0 10px;
    padding: 6px 12px;
    border-radius: 5px;
    transition: background-color 0.3s;
}

header a:hover {
    background-color: #0056b3;
}

#logoutBtn {
    position: absolute;
    right: 20px;
    top: 10px;
    background: #ff3b3b;
    color: #fff;
    border: none;
    padding: 6px 12px;
    border-radius: 5px;
    cursor: pointer;
}

section {
    background: #fff;
    padding: 20px;
    margin: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

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

th {
    background: #007bff;
    color: #fff;
}

tr:nth-child(even) {
    background-color: #f2f2f2;
}

button {
    padding: 10px 15px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    color: #fff;
    transition: background-color 0.3s;
    background-color: #007bff;
}

button:hover {
    background-color: #0056b3;
}

button.approve { background: #28a745; }
button.reject { background: #dc3545; }
button.borrow { background: #17a2b8; }
button.return { background: #ffc107; color: #333;}
button:disabled { background: #ccc; cursor: not-allowed; }

.message {
    padding: 10px;
    margin-bottom: 1rem;
    border-radius: 5px;
    color: #fff;
    text-align: center;
}

.message.success { background: #28a745; }
.message.error { background: #dc3545; }
.status-notice { text-align: center; padding: 1rem; background: #ffc107; color: #333; }

/* Login and Registration Forms */
.form-body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.form-container, #loginSection {
    background: #fff;
    padding: 25px 30px;
    border-radius: 12px;
    box-shadow: 0 6px 15px rgba(0,0,0,0.1);
    width: 100%;
    max-width: 450px;
    margin: auto;
}

h2 {
    text-align: center;
    color: #007bff;
    margin-bottom: 20px;
}

form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

input {
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: 6px;
    font-size: 15px;
    outline: none;
    transition: 0.3s;
}

input:focus {
    border-color: #007bff;
    box-shadow: 0 0 5px rgba(0,123,255,0.4);
}

.form-footer, .admin-note, .login-type {
    text-align: center;
    margin-top: 12px;
    font-size: 14px;
}

.form-footer a, p a {
    color: #007bff;
    text-decoration: none;
}

.form-footer a:hover, p a:hover {
    text-decoration: underline;
}

.password-wrapper {
    position: relative;
}

.toggle, .toggle-password {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    color: #007bff;
    font-size: 13px;
}

.toggle-password {
    top: auto;
    bottom: 10px;
    right: 10px;
    transform: none;
}

/* Specific for Studentform.php */
input[name="student_id"] { background-color: #ffe6e6; }
input[name="first_name"] { background-color: #e6ffe6; }
input[name="second_name"] { background-color: #e6f0ff; }
input[name="email"], input[name="phone_number"] { background-color: #fff5e6; }
input[name="user_name"] { background-color: #f0e6ff; }
input[name="password"] { background-color: #f9e6ff; }