/* QR Code Manager Admin UI Styles */

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

:root {
    --primary-color: #0077be;
    --primary-hover: #005a8f;
    --danger-color: #e74c3c;
    --danger-hover: #c0392b;
    --success-color: #27ae60;
    --text-color: #333;
    --text-muted: #666;
    --border-color: #ddd;
    --background-color: #f5f7fa;
    --card-background: #fff;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
header {
    text-align: center;
    padding: 30px 0;
}

header h1 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 8px;
}

.subtitle {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* Cards */
.card {
    background: var(--card-background);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
}

.card h2 {
    font-size: 1.25rem;
    margin-bottom: 20px;
    color: var(--text-color);
}

/* Forms */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--text-color);
}

.form-group input {
    width: 100%;
    padding: 12px 14px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 119, 190, 0.1);
}

.form-group input:disabled {
    background-color: #f5f5f5;
    color: var(--text-muted);
}

.form-group small {
    display: block;
    margin-top: 4px;
    color: var(--text-muted);
    font-size: 0.85rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

@media (max-width: 600px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.1s;
}

.btn:hover {
    transform: translateY(-1px);
}

.btn:active {
    transform: translateY(0);
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
}

.btn-secondary {
    background-color: #e9ecef;
    color: var(--text-color);
}

.btn-secondary:hover {
    background-color: #dee2e6;
}

.btn-danger {
    background-color: var(--danger-color);
    color: white;
}

.btn-danger:hover {
    background-color: var(--danger-hover);
}

.btn-small {
    padding: 8px 16px;
    font-size: 0.9rem;
}

.btn-icon {
    padding: 8px;
    background: none;
    border: none;
    cursor: pointer;
    color: var(--text-muted);
    border-radius: 4px;
    transition: background-color 0.2s, color 0.2s;
}

.btn-icon:hover {
    background-color: #f0f0f0;
    color: var(--text-color);
}

.btn-icon.danger:hover {
    background-color: #fdecea;
    color: var(--danger-color);
}

/* Stats Bar */
.stats-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--card-background);
    padding: 16px 24px;
    border-radius: 12px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
}

.stat {
    display: flex;
    align-items: baseline;
    gap: 8px;
}

.stat-value {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--primary-color);
}

.stat-label {
    color: var(--text-muted);
}

/* Table */
table {
    width: 100%;
    border-collapse: collapse;
}

thead {
    background-color: #f8f9fa;
}

th, td {
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

th {
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

tbody tr:hover {
    background-color: #f8f9fa;
}

td.qr-id {
    font-family: 'Monaco', 'Menlo', monospace;
    font-weight: 500;
    color: var(--primary-color);
}

td.url {
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

td.url a {
    color: var(--text-color);
    text-decoration: none;
}

td.url a:hover {
    text-decoration: underline;
    color: var(--primary-color);
}

.actions {
    display: flex;
    gap: 4px;
}

/* Messages */
.error-message {
    color: var(--danger-color);
    margin-top: 12px;
    font-size: 0.9rem;
}

.success-message {
    color: var(--success-color);
    margin-top: 12px;
    font-size: 0.9rem;
}

.warning {
    color: var(--danger-color);
    font-size: 0.9rem;
    margin-top: 8px;
}

/* States */
.loading {
    text-align: center;
    padding: 40px;
    color: var(--text-muted);
}

.empty-state {
    text-align: center;
    padding: 40px;
    color: var(--text-muted);
}

.hidden {
    display: none !important;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    z-index: 1000;
}

.modal-content {
    background: var(--card-background);
    border-radius: 12px;
    padding: 24px;
    width: 100%;
    max-width: 500px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
}

.modal-content h2 {
    margin-bottom: 16px;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 24px;
}

/* Footer */
footer {
    text-align: center;
    padding: 30px;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 12px;
    }

    header h1 {
        font-size: 1.5rem;
    }

    .card {
        padding: 16px;
    }

    table {
        font-size: 0.9rem;
    }

    th, td {
        padding: 10px 12px;
    }

    td.url {
        max-width: 150px;
    }
}

/* Copy button animation */
.copied {
    color: var(--success-color) !important;
}

/* Tooltip */
.tooltip {
    position: relative;
}

.tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: #333;
    color: white;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}

.tooltip:hover::after {
    opacity: 1;
}