* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
    line-height: 1.6;
}

.navbar {
    background-color: #990000;
    color: white;
    padding: 15px 20px;
}

.navbar h1 {
    font-size: 1.5em;
    margin: 0;
}

.navbar a {
    color: white;
    text-decoration: none;
    margin-left: 15px;
}

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

.logout-form {
    display: inline;
    margin-left: 15px;
}

.logout-btn {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    text-decoration: underline;
    font-size: inherit;
    font-family: inherit;
}

.logout-btn:hover {
    opacity: 0.8;
}

.container {
    max-width: 1200px;
    margin: 20px auto;
    padding: 20px;
}

.btn {
    padding: 10px 20px;
    border: 1px solid #ccc;
    background-color: white;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    border-radius: 4px;
    transition: all 0.3s;
}

.btn:hover {
    opacity: 0.9;
}

.btn-primary {
    background-color: #990000;
    color: white;
    border: 1px solid #990000;
}

.btn-primary:hover {
    background-color: #770000;
}

.btn-secondary {
    background-color: #666;
    color: white;
    border: 1px solid #666;
}

.btn-secondary:hover {
    background-color: #555;
}

.btn-large {
    padding: 15px 30px;
    font-size: 1rem;
}

.search-box {
    background: white;
    padding: 20px;
    border: 1px solid #ddd;
    margin-bottom: 20px;
    border-radius: 4px;
}

.search-box h2 {
    margin-bottom: 15px;
}

.search-form {
    display: flex;
    gap: 10px;
}

.search-input {
    flex: 1;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.welcome-message {
    background: white;
    padding: 40px 20px;
    border: 1px solid #ddd;
    text-align: center;
    border-radius: 4px;
}

.welcome-message h1 {
    color: #990000;
    margin-bottom: 15px;
}

.welcome-message h2 {
    color: #666;
    font-weight: normal;
    margin-bottom: 10px;
}

.welcome-message a {
    color: #990000;
}

.login-container {
    max-width: 400px;
    margin: 50px auto;
}

.login-form {
    background: white;
    border: 1px solid #ddd;
    padding: 30px;
    border-radius: 4px;
}

.login-form h2 {
    margin-bottom: 20px;
    color: #990000;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
}

input[type="text"], 
input[type="password"] {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

button[type="submit"] {
    padding: 12px;
    background-color: #990000;
    color: white;
    border: none;
    cursor: pointer;
    border-radius: 4px;
    font-size: 1em;
}

button[type="submit"]:hover {
    background-color: #770000;
}

.error {
    color: #cc0000;
    background-color: #ffe6e6;
    border: 1px solid #cc0000;
    padding: 10px;
    margin-bottom: 15px;
    border-radius: 4px;
}

.message {
    color: #28a745;
    background-color: #e6ffe6;
    border: 1px solid #28a745;
    padding: 10px;
    margin-bottom: 15px;
    border-radius: 4px;
}

.demo-creds {
    background-color: #f5f5f5;
    padding: 15px;
    margin-top: 20px;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.demo-creds h4 {
    margin-bottom: 10px;
    color: #990000;
}

.demo-creds p {
    margin: 5px 0;
    font-size: 0.9em;
}

.error-page {
    max-width: 600px;
    margin: 50px auto;
}

.error-box {
    border: 2px solid red;
    padding: 30px;
    background-color: #ffe6e6;
    text-align: center;
    border-radius: 4px;
}

.error-box h1 {
    color: red;
    margin-bottom: 15px;
}

.error-box a {
    color: #990000;
}

.results-section {
    margin-top: 20px;
}

.results-section h3 {
    margin-bottom: 10px;
}

.results-count {
    color: #666;
    margin-bottom: 15px;
}

.books-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 15px;
}

.book-card {
    background: white;
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    transition: box-shadow 0.3s;
}

.book-card:hover {
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.book-card h4 {
    margin-bottom: 8px;
    color: #990000;
}

.book-author {
    color: #666;
    margin-bottom: 8px;
}

.book-isbn {
    color: #888;
    font-size: 0.9em;
    margin-bottom: 10px;
}

.available {
    color: #28a745;
    font-weight: bold;
}

.unavailable {
    color: #dc3545;
    font-weight: bold;
}

.book-actions {
    margin-top: 15px;
}

.no-results {
    background: white;
    padding: 30px;
    border: 1px solid #ddd;
    text-align: center;
    margin-top: 20px;
    border-radius: 4px;
}

.back-link {
    display: inline-block;
    color: #990000;
    margin-bottom: 15px;
    text-decoration: none;
}

.back-link:hover {
    text-decoration: underline;
}

.book-details-card {
    background: white;
    padding: 30px;
    border: 1px solid #ddd;
    max-width: 800px;
    border-radius: 4px;
}

.book-details-card h2 {
    margin-bottom: 20px;
    color: #990000;
}

.detail-row {
    padding: 10px 0;
    border-bottom: 1px solid #eee;
}

.detail-label {
    font-weight: bold;
    display: inline-block;
    width: 150px;
}

.detail-value {
    color: #666;
}

.book-details-actions {
    padding-top: 20px;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.unavailable-message {
    background-color: #fff9e6;
    border: 1px solid #ffcc00;
    padding: 15px;
    color: #666;
    border-radius: 4px;
}

/* Hold-specific styles */
.hold-info {
    background-color: #fff9e6;
    border: 1px solid #ffcc00;
    padding: 15px;
    margin: 15px 0;
    border-radius: 4px;
}

.hold-info strong {
    color: #990000;
}

.user-hold-status {
    background-color: #e6f3ff;
    border: 1px solid #0066cc;
    padding: 12px;
    margin: 15px 0;
    border-radius: 4px;
}

.alert-error {
    background-color: #ffe6e6;
    border: 1px solid #cc0000;
    padding: 12px;
    margin: 15px 0;
    border-radius: 4px;
    color: #cc0000;
}

.hold-card {
    background: white;
    padding: 20px;
    border: 1px solid #ddd;
    margin-bottom: 20px;
    border-radius: 4px;
}

.hold-card.ready {
    border-left: 5px solid #28a745;
    background-color: #f0fff4;
}

.hold-card.pending {
    border-left: 5px solid #ffc107;
    background-color: #fffef0;
}

.hold-status {
    display: inline-block;
    padding: 5px 12px;
    border-radius: 3px;
    font-weight: bold;
    font-size: 0.9em;
    margin-bottom: 10px;
}

.hold-status.ready {
    background-color: #28a745;
    color: white;
}

.hold-status.pending {
    background-color: #ffc107;
    color: #333;
}

.hold-info-row {
    margin: 8px 0;
    color: #666;
}

.hold-actions {
    margin-top: 15px;
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.expiration-warning {
    background-color: #fff3cd;
    border: 1px solid #ffc107;
    padding: 10px;
    margin: 10px 0;
    border-radius: 4px;
    color: #856404;
}

.queue-position {
    font-size: 1.2em;
    color: #990000;
    font-weight: bold;
}

.no-holds {
    text-align: center;
    padding: 40px;
    background: white;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.section-divider {
    margin: 30px 0 20px 0;
    padding-bottom: 10px;
    border-bottom: 2px solid #ddd;
}