/* ===================================
   Filament Settings Web App - Compare
   Design System + Responsive Layout
   =================================== */

:root {
    /* Design tokens - can be overridden by theme */
    --fsw-radius: 6px;
    --fsw-border: 1px solid #ddd;
    --fsw-bg: #fff;
    --fsw-muted: #666;
    --fsw-primary: #2271b1; /* WordPress blue */
    --fsw-primary-hover: #135e96;
    --fsw-diff-bg: #fff3cd; /* Subtle highlight */
    --fsw-diff-border: #ffc107;
    --fsw-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

/* Base app container */
.fsw-compare-app {
    --theme-radius: var(--fsw-radius);
    --theme-border: var(--fsw-border);
    --theme-bg: var(--fsw-bg);
    --theme-muted: var(--fsw-muted);
    --theme-primary: var(--fsw-primary);
    --theme-diff-bg: var(--fsw-diff-bg);

    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    margin: 1.5em 0;
    padding: 1.25em;
    background: var(--theme-bg);
    border: var(--theme-border);
    border-radius: var(--theme-radius);
    box-shadow: var(--fsw-shadow);
    max-width: 100%;
}

/* Screen reader only */
.fsw-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
}

/* ===================================
   Picker Section
   =================================== */
.fsw-compare-picker {
    margin-bottom: 1.5em;
}

/* Search input */
.fsw-search-container {
    position: relative;
    margin-bottom: 1em;
}

.fsw-search-input {
    width: 100%;
    max-width: 500px;
    padding: 10px 14px;
    font-size: 1rem;
    border: var(--theme-border);
    border-radius: var(--theme-radius);
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
}

.fsw-search-input:focus {
    border-color: var(--theme-primary);
    box-shadow: 0 0 0 2px rgba(34, 113, 177, 0.25);
}

/* Typeahead dropdown */
.fsw-search-results {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    max-height: 300px;
    overflow-y: auto;
    background: var(--theme-bg);
    border: var(--theme-border);
    border-top: none;
    border-radius: 0 0 var(--theme-radius) var(--theme-radius);
    box-shadow: var(--fsw-shadow);
    z-index: 10;
}

.fsw-typeahead-item {
    padding: 10px 14px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    gap: 1em;
}

.fsw-typeahead-item:focus,
.fsw-typeahead-item:hover {
    background: #f0f0f0;
}

.fsw-maker {
    font-weight: 600;
    color: var(--theme-primary);
}

.fsw-model {
    color: var(--theme-muted);
}

.fsw-no-results {
    padding: 12px 14px;
    color: var(--theme-muted);
    font-style: italic;
    text-align: center;
}

/* Filter chips */
.fsw-filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5em;
    margin-bottom: 1em;
}

.fsw-filter-chip {
    padding: 6px 12px;
    font-size: 0.875rem;
    border: var(--theme-border);
    border-radius: 999px;
    background: var(--theme-bg);
    color: var(--theme-muted);
    cursor: pointer;
    transition: all 0.2s;
}

.fsw-filter-chip:hover {
    border-color: var(--theme-primary);
    color: var(--theme-primary);
}

.fsw-filter-chip.active {
    background: var(--theme-primary);
    border-color: var(--theme-primary);
    color: #fff;
}

/* Selected tray */
.fsw-selected-tray {
    margin-bottom: 1em;
    padding: 1em;
    background: #f9f9f9;
    border: var(--theme-border);
    border-radius: var(--theme-radius);
}

.fsw-tray-label {
    font-weight: 600;
    margin-bottom: 0.5em;
    color: var(--theme-muted);
}

.fsw-selected-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5em;
}

.fsw-selected-card {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    background: #e8f4fd;
    border: 1px solid #b3d4fc;
    border-radius: 999px;
    font-size: 0.875rem;
}

.fsw-card-label {
    font-weight: 500;
}

.fsw-remove-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    border: none;
    background: transparent;
    font-size: 1.25rem;
    line-height: 1;
    color: #666;
    cursor: pointer;
    border-radius: 50%;
    padding: 0;
}

.fsw-remove-btn:hover {
    background: rgba(0,0,0,0.1);
    color: #d63638;
}

/* Compare button */
.fsw-compare-button {
    padding: 10px 20px;
    font-size: 1rem;
    font-weight: 600;
    color: #fff;
    background: var(--theme-primary);
    border: none;
    border-radius: var(--theme-radius);
    cursor: pointer;
    transition: background 0.2s;
}

.fsw-compare-button:hover:not(:disabled) {
    background: var(--theme-primary-hover);
}

.fsw-compare-button:disabled {
    background: #ccc;
    cursor: not-allowed;
}

.fsw-hint {
    margin: 0.25em 0 0;
    font-size: 0.875rem;
    color: var(--theme-muted);
}

/* ===================================
   Results Section
   =================================== */
.fsw-compare-results {
    border-top: var(--theme-border);
    padding-top: 1.5em;
}

/* Sticky header cards */
.fsw-sticky-header {
    position: sticky;
    top: 0;
    z-index: 5;
    background: var(--theme-bg);
    padding: 1em;
    margin: 0 -1.25em 1.5em;
    border-bottom: var(--theme-border);
    box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.fsw-header-cards {
    display: flex;
    gap: 1em;
    overflow-x: auto;
    padding-bottom: 0.5em;
}

.fsw-header-card {
    flex: 0 0 180px;
    padding: 1em;
    background: #f0f6fc;
    border: 1px solid #ddd;
    border-radius: var(--theme-radius);
    position: relative;
}

.fsw-card-title {
    font-weight: 600;
    margin-bottom: 0.5em;
    color: var(--theme-primary);
    padding-right: 24px;
}

.fsw-card-stats {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 0.875rem;
    color: var(--theme-muted);
}

.fsw-remove-btn-small {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 24px;
    height: 24px;
    border: none;
    background: transparent;
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    color: #999;
    border-radius: 50%;
    padding: 0;
}

.fsw-remove-btn-small:hover {
    background: rgba(0,0,0,0.1);
    color: #d63638;
}

/* Spec sections */
.fsw-spec-section {
    margin-bottom: 1.5em;
    border: var(--theme-border);
    border-radius: var(--theme-radius);
    overflow: hidden;
}

.fsw-section-header {
    margin: 0;
    padding: 0.75em 1em;
    background: #f0f0f0;
    border-bottom: var(--theme-border);
}

.fsw-section-toggle {
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    font-size: 1rem;
    font-weight: 600;
    color: #333;
    cursor: pointer;
    padding: 0;
    display: flex;
    align-items: center;
    gap: 8px;
}

.fsw-toggle-icon {
    font-size: 0.75rem;
}

.fsw-section-content {
    overflow-x: auto;
}

.fsw-spec-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 600px; /* Ensure table doesn't squish too much */
}

.fsw-spec-table th,
.fsw-spec-table td {
    padding: 10px 12px;
    border-bottom: var(--theme-border);
    text-align: left;
    vertical-align: top;
}

.fsw-spec-table th {
    background: #fafafa;
    font-weight: 600;
    position: sticky;
    top: 0;
}

.fsw-spec-table tr:last-child td {
    border-bottom: none;
}

/* Difference highlighting */
.fsw-spec-table .fsw-different {
    background: var(--theme-diff-bg);
    border-left: 3px solid var(--fsw-diff-border);
    padding-left: 9px; /* Adjust for border */
}

/* Use non-color indicator for accessibility */
.fsw-spec-table .fsw-different::after {
    content: "⚠";
    float: right;
    margin-left: 8px;
    color: var(--fsw-diff-border);
    font-weight: bold;
}

.fsw-diff-row {
    background: rgba(255, 243, 205, 0.3) !important;
}

/* ===================================
   Actions Bar
   =================================== */
.fsw-compare-actions {
    display: flex;
    gap: 1em;
    margin-top: 1em;
    padding-top: 1em;
    border-top: var(--theme-border);
}

.fsw-action-button {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    font-size: 0.9rem;
    font-weight: 500;
    color: #1d1d1d; /* Ensure sufficient contrast against light background */
    background: #f0f0f0;
    border: 1px solid #ddd;
    border-radius: var(--theme-radius);
    cursor: pointer;
    transition: background 0.2s;
}

.fsw-action-button:hover {
    background: #e0e0e0;
}

.fsw-action-button.active {
    background: var(--theme-primary);
    border-color: var(--theme-primary);
    color: #fff;
}

.fsw-icon {
    font-style: normal;
}

/* ===================================
   Loading & Error states
   =================================== */
.fsw-loading,
.fsw-error {
    margin: 1em 0;
    padding: 1em;
    border-radius: var(--theme-radius);
    text-align: center;
}

.fsw-loading {
    background: #f0f6fc;
    color: var(--theme-primary);
    font-weight: 600;
}

.fsw-error {
    background: #fcf0f0;
    color: #d63638;
    border: 1px solid #d63638;
}

/* ===================================
   Mobile Responsive (< 768px)
   =================================== */
@media (max-width: 767px) {
    .fsw-compare-app {
        margin: 1em 0;
        padding: 1em;
        font-size: 14px;
    }

    .fsw-search-input {
        font-size: 1rem;
        padding: 12px;
    }

    .fsw-filters {
        gap: 8px;
    }

    .fsw-filter-chip {
        padding: 8px 14px;
        font-size: 0.875rem;
    }

    .fsw-selected-card {
        font-size: 0.875rem;
        padding: 8px 10px;
    }

    .fsw-header-card {
        flex: 0 0 140px;
        padding: 0.75em;
        font-size: 0.875rem;
    }

    .fsw-card-title {
        font-size: 0.875rem;
    }

    .fsw-card-stats {
        font-size: 0.75rem;
    }

    .fsw-compare-actions {
        flex-direction: column;
        gap: 0.75em;
    }

    .fsw-action-button {
        justify-content: center;
        width: 100%;
    }

    /* On mobile, table becomes scrollable with minimal styling */
    .fsw-spec-table {
        font-size: 0.875rem;
    }

    .fsw-spec-table th,
    .fsw-spec-table td {
        padding: 8px 10px;
    }

    /* Sticky first column (spec label) */
    .fsw-spec-table th:first-child,
    .fsw-spec-table td:first-child {
        position: sticky;
        left: 0;
        background: var(--theme-bg);
        z-index: 1;
        font-weight: 600;
        border-right: 1px solid #ddd;
    }
}

/* ===================================
   Focus styles for accessibility
   =================================== */
.fsw-compare-app *:focus {
    outline: 2px solid var(--theme-primary);
    outline-offset: 2px;
}

.fsw-compare-app button:focus:not(:focus-visible) {
    outline: none;
}

.fsw-compare-app button:focus-visible {
    outline: 2px solid var(--theme-primary);
    outline-offset: 2px;
}

/* ===================================
   Print styles
   =================================== */
@media print {
    .fsw-compare-app .fsw-compare-actions,
    .fsw-compare-app .fsw-compare-picker,
    .fsw-sticky-header {
        display: none !important;
    }

    .fsw-spec-section {
        break-inside: avoid;
    }
}

/* ===================================
   Amazon Affiliate Links
   =================================== */
.fsw-amazon-link {
    margin-top: 0.5rem;
}

.fsw-amazon-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    width: 100%;
    padding: 0.6rem 0.75rem;
    background: linear-gradient(135deg, #ff9900 0%, #ffad33 100%);
    color: #fff;
    text-decoration: none;
    border-radius: 4px;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.fsw-amazon-btn:hover {
    background: linear-gradient(135deg, #ffad33 0%, #ffbf66 100%);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.fsw-amazon-btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.fsw-amazon-btn:focus-visible {
    outline: 2px solid var(--theme-primary);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .fsw-amazon-link {
        display: none !important;
    }
}