/**
 * Lorem Ipsum Generator Styles
 *
 * Mobile-first responsive design with theme support
 */

/* ========================================
   App Page Layout
   ======================================== */

.app-page {
    padding: var(--space-4);
    padding-top: calc(var(--header-height) + var(--space-4));
    min-height: calc(100vh - var(--header-height));
    display: flex;
    flex-direction: column;
    align-items: center;
}

.app-container {
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
}

.app-header {
    text-align: center;
    margin-bottom: var(--space-6);
}

.app-header h1 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--space-2);
}

.app-description {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    margin-bottom: 0;
}

/* Generator Container */
.lorem-ipsum-generator {
    display: flex;
    flex-direction: column;
    gap: var(--space-6);
    max-width: 900px;
    margin: 0 auto;
    padding: var(--space-4);
}

/* Controls Section */
.lig-controls {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
}

.lig-option-group {
    margin-bottom: var(--space-5);
}

.lig-option-group:last-of-type {
    margin-bottom: var(--space-4);
}

.lig-option-group legend,
.lig-option-group > label:first-child:not(.lig-toggle) {
    display: block;
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-3);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Unit Type Selection */
.lig-unit-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.lig-unit-btn {
    flex: 1;
    min-width: 100px;
    position: relative;
}

.lig-unit-btn input[type="radio"] {
    position: absolute;
    opacity: 0;
    width: 100%;
    height: 100%;
    cursor: pointer;
    margin: 0;
    z-index: 1;
}

.lig-unit-label {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-3) var(--space-4);
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-weight: 500;
    color: var(--color-text-muted);
    transition: all 0.2s ease;
    cursor: pointer;
    text-align: center;
}

.lig-unit-btn input[type="radio"]:checked + .lig-unit-label {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: white;
}

.lig-unit-btn input[type="radio"]:focus-visible + .lig-unit-label {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.lig-unit-btn:hover .lig-unit-label {
    border-color: var(--color-primary);
}

/* Quantity Controls */
.lig-quantity-controls {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    max-width: 180px;
}

.lig-qty-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 0;
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: all 0.2s ease;
}

.lig-qty-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.lig-qty-btn:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.lig-quantity-input {
    flex: 1;
    width: 60px;
    padding: var(--space-3);
    font-size: var(--font-size-lg);
    font-weight: 600;
    text-align: center;
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    -moz-appearance: textfield;
}

.lig-quantity-input::-webkit-outer-spin-button,
.lig-quantity-input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.lig-quantity-input:focus {
    outline: none;
    border-color: var(--color-primary);
}

/* Toggle Switches */
.lig-options-group {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.lig-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    cursor: pointer;
    position: relative;
}

.lig-toggle input[type="checkbox"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.lig-toggle-slider {
    position: relative;
    width: 48px;
    height: 26px;
    background: var(--color-border);
    border-radius: 13px;
    transition: background 0.3s ease;
    flex-shrink: 0;
}

.lig-toggle-slider::after {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 20px;
    height: 20px;
    background: white;
    border-radius: 50%;
    transition: transform 0.3s ease;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.lig-toggle input[type="checkbox"]:checked + .lig-toggle-slider {
    background: var(--color-primary);
}

.lig-toggle input[type="checkbox"]:checked + .lig-toggle-slider::after {
    transform: translateX(22px);
}

.lig-toggle input[type="checkbox"]:focus-visible + .lig-toggle-slider {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.lig-toggle-label {
    font-weight: 500;
    color: var(--color-text);
    text-transform: none;
    letter-spacing: normal;
}

/* Action Buttons */
.lig-actions {
    display: flex;
    gap: var(--space-3);
    flex-wrap: wrap;
}

.lig-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-5);
    font-size: var(--font-size-base);
    font-weight: 600;
    border: 2px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    min-height: 44px;
}

.lig-btn:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.lig-btn-primary {
    background: var(--color-primary);
    color: white;
    flex: 1;
    min-width: 120px;
}

.lig-btn-primary:hover {
    background: var(--color-primary-dark, #4338ca);
}

.lig-btn-secondary {
    background: var(--color-bg);
    border-color: var(--color-border);
    color: var(--color-text-muted);
}

.lig-btn-secondary:hover {
    border-color: var(--color-text-muted);
    color: var(--color-text);
}

/* Output Section */
.lig-output-section {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.lig-output-header {
    display: flex;
    justify-content: flex-end;
    padding: var(--space-3) var(--space-4);
    background: var(--color-bg-alt);
    border-bottom: 1px solid var(--color-border);
}

.lig-btn-copy {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    min-height: 36px;
}

.lig-btn-copy:hover:not(:disabled) {
    border-color: var(--color-primary);
    color: var(--color-primary);
}

.lig-btn-copy:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.lig-btn-copy.copied {
    background: var(--color-success, #10b981);
    border-color: var(--color-success, #10b981);
    color: white;
}

.lig-copy-icon {
    width: 16px;
    height: 16px;
}

.lig-output {
    min-height: 200px;
    max-height: 400px;
    overflow-y: auto;
    padding: var(--space-5);
    font-family: var(--font-family-serif, Georgia, 'Times New Roman', serif);
    font-size: var(--font-size-base);
    line-height: 1.8;
    color: var(--color-text);
}

.lig-output p {
    margin: 0 0 var(--space-4);
}

.lig-output p:last-child {
    margin-bottom: 0;
}

.lig-placeholder {
    color: var(--color-text-muted);
    font-style: italic;
    text-align: center;
    padding: var(--space-8) 0;
}

/* Keyboard Shortcuts Info */
.lig-shortcuts {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-4);
    margin-top: var(--space-4);
    padding: var(--space-3);
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.lig-shortcut {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
}

.lig-shortcuts kbd {
    display: inline-block;
    padding: var(--space-1) var(--space-2);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: var(--font-family-mono, monospace);
    font-size: var(--font-size-xs);
    line-height: 1;
    box-shadow: 0 1px 0 var(--color-border);
}

/* Responsive Design */
@media (min-width: 640px) {
    .lig-controls {
        padding: var(--space-6);
    }

    .lig-unit-buttons {
        flex-wrap: nowrap;
    }

    .lig-options-group {
        flex-direction: row;
        flex-wrap: wrap;
        gap: var(--space-4) var(--space-6);
    }

    .lig-toggle {
        flex-shrink: 0;
    }

    .lig-actions {
        flex-wrap: nowrap;
    }

    .lig-btn-primary {
        flex: none;
        min-width: 160px;
    }
}

@media (min-width: 768px) {
    .lorem-ipsum-generator {
        padding: var(--space-6);
    }

    .lig-output {
        min-height: 250px;
        max-height: 500px;
    }
}

/* RTL Support */
[dir="rtl"] .lig-toggle-slider::after {
    left: auto;
    right: 3px;
}

[dir="rtl"] .lig-toggle input[type="checkbox"]:checked + .lig-toggle-slider::after {
    transform: translateX(-22px);
}

/* Dark Theme Adjustments */
[data-theme="dark"] .lig-qty-btn,
[data-theme="dark"] .lig-quantity-input {
    background: var(--color-bg-alt);
}

[data-theme="dark"] .lig-toggle-slider {
    background: var(--color-bg-alt);
}

[data-theme="dark"] .lig-unit-label {
    background: var(--color-bg-alt);
}

[data-theme="dark"] .lig-shortcuts kbd {
    background: var(--color-bg-alt);
}

/* Help Panel Modal */
.help-panel {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.help-panel[hidden] {
    display: none;
}

.help-content {
    background: var(--color-bg-card);
    border-radius: var(--radius-lg);
    max-width: 500px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.help-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-4) var(--space-5);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    background: var(--color-bg-card);
}

.help-header h2 {
    font-size: var(--font-size-lg);
    margin: 0;
    color: var(--color-text);
}

.help-close {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xl);
    border-radius: var(--radius-md);
    color: var(--color-text-muted);
    background: transparent;
    border: none;
    cursor: pointer;
    transition: all 0.2s ease;
}

.help-close:hover {
    background: var(--color-bg);
    color: var(--color-text);
}

.help-close:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.help-body {
    padding: var(--space-5);
}

.help-section {
    margin-bottom: var(--space-5);
}

.help-section:last-child {
    margin-bottom: 0;
}

.help-section h3 {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--color-text);
    margin: 0 0 var(--space-3);
}

.help-steps {
    margin: 0;
    padding-left: var(--space-5);
    color: var(--color-text-muted);
    line-height: 1.8;
}

.help-steps li {
    margin-bottom: var(--space-2);
}

.help-features {
    list-style: disc;
    margin: 0;
    padding-left: var(--space-5);
    color: var(--color-text-muted);
    line-height: 1.8;
}

.help-features li {
    margin-bottom: var(--space-2);
}

.help-features kbd {
    display: inline-block;
    padding: 2px 6px;
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-family: var(--font-family-mono, monospace);
    font-size: var(--font-size-sm);
}

/* Print styles */
@media print {
    .help-panel,
    .nav-actions,
    .lig-shortcuts {
        display: none;
    }
}