/* QR Code Generator Custom Styles */
:root {
    --primary-color: #7c3aed;
    --primary-hover: #6d28d9;
    --secondary-color: #0d6efd;
    --tertiary-color: #0dcaf0;
    --danger-color: #dc3545;
    --success-color: #198754;
    --warning-color: #ffc107;
    --qr-panel-bg: #121620;
    --qr-panel-border: #1f2937;
    --text-color: #c9d1d9;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
}

header {
    text-align: center;
    margin-bottom: 2rem;
}

h1 {
    font-size: 2.5rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

main {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.qr-options, .qr-result, .info-section {
    background-color: var(--qr-panel-bg);
    border: 1px solid var(--qr-panel-border);
    border-radius: 8px;
    padding: 1.5rem;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.info-section {
    grid-column: 1 / -1;
    margin-top: 1rem;
}

.type-selector {
    margin-bottom: 1.5rem;
}

.tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 1rem;
}

.tab-btn {
    padding: 0.5rem 1rem;
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    border: 1px solid var(--qr-panel-border);
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
}

.tab-btn:hover {
    background-color: rgba(124, 58, 237, 0.1);
    color: var(--text-primary);
}

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

.tab-content {
    margin-bottom: 1.5rem;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

.form-group {
    margin-bottom: 1rem;
}

label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

input[type="text"],
input[type="url"],
input[type="tel"],
input[type="email"],
input[type="password"],
textarea,
select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--qr-panel-border);
    border-radius: 4px;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 1rem;
}

input[type="checkbox"] {
    margin-right: 0.5rem;
}

textarea {
    resize: vertical;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(124, 58, 237, 0.2);
}

.toggle-password {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
}

.form-group:has(input[type="password"]) {
    position: relative;
}

.settings-controls {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

input[type="range"] {
    width: 100%;
}

input[type="color"] {
    width: 50px;
    height: 30px;
    padding: 0;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}

.action-buttons {
    display: flex;
    justify-content: space-between;
    margin-top: 1.5rem;
}

.primary-btn, .secondary-btn, .action-btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 4px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease-in-out;
}

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

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

.secondary-btn {
    background-color: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--qr-panel-border);
}

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

.action-btn {
    background-color: var(--secondary-color);
    color: white;
    opacity: 0.7;
}

.action-btn:not([disabled]):hover {
    opacity: 1;
}

.action-btn:disabled {
    background-color: var(--bg-secondary);
    color: var(--text-secondary);
    cursor: not-allowed;
    opacity: 0.5;
}

#qrcode-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 250px;
    padding: 1rem;
    margin-bottom: 1.5rem;
    background-color: var(--bg-secondary);
    border-radius: 8px;
}

#qrcode {
    text-align: center;
}

#qrcode img {
    margin: 0 auto;
}

.result-actions {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.offline-notice {
    margin-top: 1rem;
    color: var(--success-color);
    font-size: 0.9rem;
    text-align: center;
}

details {
    margin-top: 1rem;
    padding: 0.75rem;
    background-color: var(--bg-secondary);
    border-radius: 4px;
}

summary {
    cursor: pointer;
    font-weight: 600;
    color: var(--text-primary);
    padding: 0.5rem 0;
}

details p {
    margin-top: 0.75rem;
    color: var(--text-secondary);
}

footer {
    text-align: center;
    margin-top: 3rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--qr-panel-border);
    color: var(--text-secondary);
}

footer a {
    color: var(--secondary-color);
}

footer .visitor-badge {
    margin-top: 1.5rem;
}

/* Mobile responsiveness */
@media (max-width: 960px) {
    main {
        grid-template-columns: 1fr;
    }
    
    .settings-controls {
        grid-template-columns: 1fr;
    }
    
    .tabs {
        flex-wrap: wrap;
    }
    
    .tab-btn {
        flex-grow: 1;
        text-align: center;
    }
}

@media (max-width: 600px) {
    .container {
        padding: 1rem;
    }
    
    h1 {
        font-size: 2rem;
    }
    
    .action-buttons, .result-actions {
        flex-direction: column;
        gap: 0.75rem;
    }
    
    .primary-btn, .secondary-btn, .action-btn {
        width: 100%;
    }
    
    .qr-options, .qr-result {
        padding: 1rem;
    }
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.tab-pane.active {
    animation: fadeIn 0.3s ease-in-out;
}

.loading {
    position: relative;
    opacity: 0.7;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 24px;
    height: 24px;
    margin: -12px 0 0 -12px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.color-tip {
    margin-top: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-style: italic;
}

/* Add a color invert button to the QR settings section */
.invert-button-container {
    margin-top: 0.5rem;
    display: flex;
    justify-content: flex-start;
}

.invert-colors-btn {
    background-color: var(--bg-secondary);
    border: 1px solid var(--text-secondary);
    border-radius: 4px;
    padding: 0.4rem 0.6rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    transition: all 0.2s ease;
}

.invert-colors-btn:hover {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border-color: var(--primary-color);
}

.invert-colors-btn .icon {
    font-size: 0.9rem;
}

/* Invert colors checkbox styling */
.invert-option {
    display: flex;
    align-items: center;
    margin-top: 0.7rem;
    margin-bottom: 0.5rem;
}

.invert-option input[type="checkbox"] {
    margin-right: 0.7rem;
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.invert-option label {
    margin-bottom: 0;
    display: inline-block;
    font-size: 0.95rem;
    cursor: pointer;
}

/* Error message styles */
.error-message {
    color: var(--danger-color);
    text-align: center;
    padding: 1rem;
    background-color: rgba(220, 53, 69, 0.1);
    border: 1px solid rgba(220, 53, 69, 0.3);
    border-radius: 4px;
    margin: 1rem 0;
}

/* QR Library loading status */
.library-status {
    padding: 8px 12px;
    margin-bottom: 15px;
    border-radius: 4px;
    font-size: 0.9rem;
    background-color: rgba(255, 193, 7, 0.1);
    color: var(--warning-color);
    border: 1px solid var(--warning-color);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.library-status.loaded {
    background-color: rgba(25, 135, 84, 0.1);
    color: var(--success-color);
    border-color: var(--success-color);
}

.library-status.error {
    background-color: rgba(220, 53, 69, 0.1);
    color: var(--danger-color);
    border-color: var(--danger-color);
}

.loading-spinner {
    display: inline-block;
    width: 12px;
    height: 12px;
    border: 2px solid rgba(255, 255, 255, 0.2);
    border-top-color: currentColor;
    border-radius: 50%;
    margin-left: 8px;
    animation: spin 1s linear infinite;
}