/* ========================================= */
/* === WQS Design System (UI-dev-v3)     === */
/* ========================================= */

:root { --wqs-color-primary: #6366f1; --wqs-color-primary-hover: #4f46e5; --wqs-color-secondary: #0ea5e9; --wqs-color-accent: #8b5cf6; --wqs-color-bg: #f8fafc; --wqs-color-surface: #ffffff; --wqs-color-surface-alt: #f1f5f9; --wqs-color-text: #0f172a; --wqs-color-text-muted: #64748b; --wqs-color-text-light: #94a3b8; --wqs-color-border: #e2e8f0; --wqs-color-divider: #f1f5f9; --wqs-color-success: #10b981; --wqs-color-warning: #f59e0b; --wqs-color-danger: #ef4444; --wqs-color-info: #3b82f6; --wqs-shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05); --wqs-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1); --wqs-shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1); --wqs-shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1); --wqs-shadow-primary: 0 10px 25px -5px rgba(99, 102, 241, 0.4); --wqs-radius-sm: 0.375rem; --wqs-radius: 0.75rem; --wqs-radius-lg: 1rem; --wqs-radius-full: 9999px; --wqs-header-height: 72px; --wqs-container-width: 1400px; --wqs-transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1); }
/* Dark Mode Improved: Fixed text-muted color and adjusted contrast */
.dark-mode { --wqs-color-bg: #0f172a; --wqs-color-surface: #1e293b; --wqs-color-surface-alt: #334155; --wqs-color-text: #f8fafc; --wqs-color-text-muted: #94a3b8; --wqs-color-border: #334155; --wqs-color-divider: #1e293b; --wqs-shadow-sm: 0 1px 2px 0 rgba(0,0,0,0.3); --wqs-shadow: 0 4px 6px -1px rgba(0,0,0,0.4); }

/* --- Reset & Base --- */
*, *::before, *::after { box-sizing: border-box; }
body { margin: 0; font-family: 'Inter', system-ui, -apple-system, sans-serif; background-color: var(--wqs-color-bg); color: var(--wqs-color-text); line-height: 1.6; -webkit-font-smoothing: antialiased; transition: background-color 0.3s, color 0.3s; }
a { color: inherit; text-decoration: none; transition: var(--wqs-transition); }
h1, h2, h3, h4, h5, h6 { margin: 0 0 1rem 0; font-weight: 700; line-height: 1.2; }
p { margin: 0 0 1rem 0; }
img { max-width: 100%; height: auto; display: block; }
button, input, select, textarea { font-family: inherit; }

/* --- Layout Utilities --- */
.wqs-container { width: 100%; max-width: var(--wqs-container-width); margin: 0 auto; padding: 0 1.5rem; }
.wqs-container-fluid { width: 100%; padding: 0 1.5rem; }
.wqs-flex { display: flex; }
.wqs-flex-col { flex-direction: column; }
.wqs-items-center { align-items: center; }
.wqs-items-start { align-items: flex-start; }
.wqs-items-end { align-items: flex-end; }
.wqs-items-baseline { align-items: baseline; }
.wqs-justify-between { justify-content: space-between; }
.wqs-justify-center { justify-content: center; }
.wqs-justify-end { justify-content: flex-end; }
.wqs-gap-1 { gap: 0.25rem; }
.wqs-gap-2 { gap: 0.5rem; }
.wqs-gap-3 { gap: 0.75rem; }
.wqs-gap-4 { gap: 1rem; }
.wqs-gap-6 { gap: 1.5rem; }
.wqs-gap-8 { gap: 2rem; }
.wqs-flex-1 { flex: 1; }
.wqs-flex-wrap { flex-wrap: wrap; }
.wqs-grid { display: grid; }
.wqs-grid-cols-1 { grid-template-columns: repeat(1, minmax(0, 1fr)); }
.wqs-grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.wqs-grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.wqs-grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.wqs-col-span-2 { grid-column: span 2; }
.wqs-row-span-2 { grid-row: span 2; }
@media (max-width: 768px) { .wqs-col-span-2 { grid-column: span 1; } .wqs-row-span-2 { grid-row: span 1; } }
.wqs-mt-2 { margin-top: 0.5rem; }
.wqs-mt-4 { margin-top: 1rem; }
.wqs-mt-8 { margin-top: 2rem; }
.wqs-mb-0 { margin-bottom: 0 !important; }
.wqs-mb-4 { margin-bottom: 1rem; }
.wqs-mb-8 { margin-bottom: 2rem; }
.wqs-py-12 { padding-top: 3rem; padding-bottom: 3rem; }
.wqs-py-20 { padding-top: 5rem; padding-bottom: 5rem; }
.wqs-text-center { text-align: center; }
.wqs-text-right { text-align: right; }
.wqs-text-sm { font-size: 0.875rem; }
.wqs-text-lg { font-size: 1.125rem; }
.wqs-text-xl { font-size: 1.25rem; }
.wqs-text-2xl { font-size: 1.5rem; }
.wqs-text-3xl { font-size: 1.875rem; }
.wqs-text-4xl { font-size: 2.25rem; }
.wqs-font-bold { font-weight: 700; }
.wqs-text-muted { color: var(--wqs-color-text-muted); }
.wqs-text-primary { color: var(--wqs-color-primary); }
.wqs-text-success { color: var(--wqs-color-success); }
.wqs-text-warning { color: var(--wqs-color-warning); }
.wqs-text-danger { color: var(--wqs-color-danger); }
@keyframes wqs-pulse { 0% { opacity: 0.6; } 50% { opacity: 1; } 100% { opacity: 0.6; } }

/* --- Components: Header --- */
.wqs-header { height: var(--wqs-header-height); background: rgba(255, 255, 255, 0.8); backdrop-filter: blur(12px); border-bottom: 1px solid var(--wqs-color-border); position: sticky; top: 0; z-index: 1000; display: flex; align-items: center; }
.dark-mode .wqs-header { background: rgba(15, 23, 42, 0.8); }
.wqs-logo { font-size: 1.25rem; font-weight: 800; display: flex; align-items: center; gap: 0.5rem; color: var(--wqs-color-text); }
.wqs-logo-icon { width: 32px; height: 32px; background: linear-gradient(135deg, var(--wqs-color-primary), var(--wqs-color-accent)); border-radius: 8px; color: white; display: flex; align-items: center; justify-content: center; font-size: 14px; }
.wqs-nav { display: none; }
.wqs-nav a { padding: 0.5rem 1rem; font-weight: 600; color: var(--wqs-color-text-muted); border-radius: var(--wqs-radius-sm); }
.wqs-nav a:hover, .wqs-nav a.active { color: var(--wqs-color-primary); background: rgba(99, 102, 241, 0.05); }
@media (min-width: 768px) { .wqs-nav { display: flex; gap: 0.5rem; } }
.wqs-header-inner { width: 100%; }
.wqs-header-actions { display: flex; align-items: center; gap: 0.75rem; }
.wqs-header-search { position: relative; max-width: 560px; width: 100%; }
.wqs-header-search svg { position: absolute; top: 50%; left: 0.875rem; transform: translateY(-50%); color: var(--wqs-color-text-light); pointer-events: none; }
.wqs-header-search .wqs-input { padding-left: 2.5rem; border-color: var(--wqs-color-border); background: var(--wqs-color-surface); }
@media (max-width: 1024px) { .wqs-header-inner { flex-wrap: wrap; align-items: flex-start; gap: 1rem; } .wqs-header-inner .wqs-header-search { order: 3; max-width: none; } .wqs-header-inner .wqs-header-actions { margin-left: auto; } }

/* --- Components: Buttons --- */
.wqs-btn { display: inline-flex; align-items: center; justify-content: center; padding: 0.625rem 1.25rem; border-radius: var(--wqs-radius); font-weight: 600; cursor: pointer; border: 1px solid transparent; transition: var(--wqs-transition); gap: 0.5rem; font-size: 0.95rem; }
.wqs-btn-primary { background: var(--wqs-color-primary); color: white; box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3); }
.wqs-btn-primary:hover { background: var(--wqs-color-primary-hover); transform: translateY(-1px); box-shadow: 0 6px 16px rgba(99, 102, 241, 0.4); }
.wqs-btn-outline { background: transparent; border-color: var(--wqs-color-border); color: var(--wqs-color-text); }
.wqs-btn-outline:hover { border-color: var(--wqs-color-text-muted); background: var(--wqs-color-surface-alt); }
.wqs-btn-ghost { background: transparent; color: var(--wqs-color-text-muted); }
.wqs-btn-ghost:hover { color: var(--wqs-color-text); background: rgba(0,0,0,0.05); }
.wqs-btn-sm { padding: 0.375rem 0.75rem; font-size: 0.875rem; border-radius: var(--wqs-radius-sm); }
.wqs-btn-lg { padding: 0.875rem 2rem; font-size: 1.125rem; }
.wqs-btn-icon { padding: 0.5rem; border-radius: 50%; width: 40px; height: 40px; }
.wqs-btn-icon:hover { background: var(--wqs-color-surface-alt); color: var(--wqs-color-primary); }
.wqs-btn-icon.active { background: var(--wqs-color-primary); color: white; }
.wqs-btn-xs { padding: 0.25rem 0.5rem; font-size: 0.75rem; border-radius: var(--wqs-radius-sm); line-height: 1; gap: 0.25rem; }

/* --- Components: Cards --- */
.wqs-card { background: var(--wqs-color-surface); border: 1px solid var(--wqs-color-border); border-radius: var(--wqs-radius-lg); padding: 1.5rem; transition: var(--wqs-transition); }
.wqs-card:hover { border-color: var(--wqs-color-primary); box-shadow: var(--wqs-shadow-lg); transform: translateY(-2px); }
.wqs-card-flat { box-shadow: none; }
.wqs-card-flat:hover { transform: none; box-shadow: none; }
.wqs-input { width: 100%; padding: 0.75rem 1rem; border-radius: var(--wqs-radius); border: 1px solid var(--wqs-color-border); background: var(--wqs-color-surface); color: var(--wqs-color-text); transition: var(--wqs-transition); }
.wqs-input:focus { outline: none; border-color: var(--wqs-color-primary); box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15); }

/* --- Components: Badges --- */
.wqs-badge { display: inline-flex; align-items: center; padding: 0.25rem 0.75rem; border-radius: 9999px; font-size: 0.75rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; }
.wqs-badge-primary { background: rgba(99, 102, 241, 0.1); color: var(--wqs-color-primary); }
.wqs-badge-success { background: rgba(16, 185, 129, 0.1); color: var(--wqs-color-success); }
.wqs-badge-warning { background: rgba(245, 158, 11, 0.1); color: var(--wqs-color-warning); }

/* --- Module: Hero Section --- */
.wqs-hero { padding: 6rem 0; text-align: center; background: radial-gradient(circle at top center, rgba(99, 102, 241, 0.1) 0%, transparent 70%); }
.wqs-hero h1 { font-size: 3.5rem; letter-spacing: -0.02em; margin-bottom: 1.5rem; background: linear-gradient(135deg, var(--wqs-color-text) 0%, var(--wqs-color-text-light) 100%); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.wqs-hero p { font-size: 1.25rem; color: var(--wqs-color-text-muted); max-width: 600px; margin: 0 auto 2.5rem auto; }

/* --- Module: Search V3 (Faceted) --- */
.wqs-search-layout { display: grid; grid-template-columns: 260px 1fr; gap: 2rem; align-items: start; padding-top: 2rem; padding-bottom: 4rem; }
@media (max-width: 1024px) { .wqs-search-layout { grid-template-columns: 1fr; } }
.wqs-sidebar { position: sticky; top: calc(var(--wqs-header-height) + 2rem); }
.wqs-filter-group { margin-bottom: 1.5rem; border-bottom: 1px solid var(--wqs-color-divider); padding-bottom: 1.5rem; }
.wqs-filter-group:last-child { border-bottom: 0; }
.wqs-filter-title { font-size: 0.875rem; font-weight: 700; text-transform: uppercase; color: var(--wqs-color-text-muted); margin-bottom: 1rem; }
.wqs-check-item { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.75rem; cursor: pointer; user-select: none; }
.wqs-check-item input { display: none; }
.wqs-check-box { width: 1.25rem; height: 1.25rem; border: 2px solid var(--wqs-color-border); border-radius: 0.375rem; display: flex; align-items: center; justify-content: center; transition: var(--wqs-transition); background: var(--wqs-color-surface); }
.wqs-check-item input:checked + .wqs-check-box { background: var(--wqs-color-primary); border-color: var(--wqs-color-primary); }
.wqs-check-box::after { content: '✓'; color: white; font-size: 0.75rem; font-weight: bold; display: none; }
.wqs-check-item input:checked + .wqs-check-box::after { display: block; }
.wqs-check-label { font-size: 0.95rem; color: var(--wqs-color-text-muted); }
.wqs-check-item:hover .wqs-check-label { color: var(--wqs-color-text); }
.wqs-check-box-round { border-radius: var(--wqs-radius-full); }
.wqs-result-card { display: flex; gap: 1.5rem; padding: 1.5rem; background: var(--wqs-color-surface); border: 1px solid var(--wqs-color-border); border-radius: var(--wqs-radius); margin-bottom: 1rem; transition: var(--wqs-transition); }
.wqs-result-card:hover { border-color: var(--wqs-color-primary); box-shadow: var(--wqs-shadow-md); }
.wqs-result-thumb { width: 180px; height: 120px; border-radius: var(--wqs-radius-sm); object-fit: cover; background: var(--wqs-color-surface-alt); }
.wqs-result-content { flex: 1; }
.wqs-result-title { font-size: 1.25rem; margin-bottom: 0.5rem; }
.wqs-result-title a:hover { color: var(--wqs-color-primary); }
.wqs-result-meta { display: flex; gap: 1rem; font-size: 0.875rem; color: var(--wqs-color-text-muted); margin-bottom: 0.75rem; }
.wqs-highlight { background: rgba(99, 102, 241, 0.15); color: inherit; font-weight: 600; padding: 0 0.15em; border-radius: var(--wqs-radius-sm); }
.wqs-search-main { display: flex; flex-direction: column; gap: 1.5rem; }
.wqs-results-header { display: flex; justify-content: space-between; align-items: flex-start; gap: 1.5rem; padding: 1.25rem 1.5rem; background: var(--wqs-color-surface); border: 1px solid var(--wqs-color-border); border-radius: var(--wqs-radius-lg); box-shadow: var(--wqs-shadow-sm); }
.wqs-search-controls { display: flex; align-items: center; gap: 0.75rem; flex-wrap: wrap; justify-content: flex-end; }
.wqs-select-sm { padding: 0.5rem 2.25rem 0.5rem 0.75rem; border-radius: var(--wqs-radius-sm); border: 1px solid var(--wqs-color-border); background: var(--wqs-color-surface); font-size: 0.875rem; color: var(--wqs-color-text); }
.wqs-select-sm:focus { outline: none; border-color: var(--wqs-color-primary); box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.12); }
.wqs-active-filters { display: flex; flex-wrap: wrap; align-items: center; gap: 0.5rem; min-height: 1.5rem; }
.wqs-filter-pill { display: inline-flex; align-items: center; gap: 0.35rem; padding: 0.35rem 0.75rem; background: rgba(99, 102, 241, 0.1); color: var(--wqs-color-primary); border-radius: var(--wqs-radius); font-size: 0.75rem; font-weight: 600; }
.wqs-filter-pill button { background: none; border: none; color: inherit; display: inline-flex; align-items: center; cursor: pointer; padding: 0; }
.wqs-filter-pill button:hover { opacity: 0.75; }
.wqs-filter-pill svg { width: 12px; height: 12px; }
.wqs-result-excerpt { font-size: 0.95rem; line-height: 1.7; color: var(--wqs-color-text-muted); margin-bottom: 1.25rem; }
.wqs-result-footer { display: flex; align-items: center; justify-content: space-between; gap: 1rem; font-size: 0.875rem; color: var(--wqs-color-text-muted); flex-wrap: wrap; }
.wqs-result-tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.wqs-tag-pill { background: var(--wqs-color-surface-alt); color: var(--wqs-color-text-muted); padding: 0.25rem 0.6rem; border-radius: var(--wqs-radius-sm); font-size: 0.75rem; font-weight: 500; }
.wqs-empty-state { padding: 3rem 1rem; text-align: center; background: var(--wqs-color-surface); border: 1px dashed var(--wqs-color-border); border-radius: var(--wqs-radius-lg); color: var(--wqs-color-text-muted); }
.wqs-empty-state h3 { margin: 1rem 0 0.5rem; color: var(--wqs-color-text); }
.wqs-empty-state p { margin: 0 0 1.5rem; }
.wqs-empty-icon { font-size: 2rem; }
.wqs-results-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 1.5rem; }
.wqs-results-grid .wqs-result-card { flex-direction: column; height: 100%; margin-bottom: 0; }
.wqs-results-grid .wqs-result-card { padding: 1.25rem; }
.wqs-results-grid .wqs-result-thumb { width: 100%; height: 180px; }
.wqs-results-grid .wqs-result-footer { flex-direction: column; align-items: flex-start; }
.wqs-results-grid .wqs-result-tags { width: 100%; }
.wqs-results-grid .wqs-result-excerpt { margin-bottom: 1rem; display: -webkit-box; -webkit-line-clamp: 3; line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

/* --- Module: FAQ (Improved for Visuals & Dark Mode) --- */
.wqs-faq-grid { --faq-row-height: auto; display: grid; grid-template-columns: repeat(1, minmax(0, 1fr)); gap: 1.5rem; align-items: start; grid-auto-rows: var(--faq-row-height, auto); }
.wqs-faq-grid.is-masonry-enabled { --faq-row-height: 12px; }
@media (min-width: 768px) { .wqs-faq-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (min-width: 1200px) { .wqs-faq-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
.wqs-faq-card { --faq-accent: var(--wqs-color-primary); --faq-accent-bg: rgba(99, 102, 241, 0.05); position: relative; padding: 2rem; border: 1px solid var(--wqs-color-border); border-radius: var(--wqs-radius-lg); background: var(--wqs-color-surface); box-shadow: var(--wqs-shadow-sm); transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease; overflow: hidden; display: block; grid-column: var(--faq-column, auto); }
/* Dark Mode FAQ Card: Subtle glow, lighter border, clear background */
.dark-mode .wqs-faq-card { background: linear-gradient(145deg, #1e293b, #151e2e); border-color: #334155; }
.wqs-faq-card:hover { transform: translateY(-4px); box-shadow: var(--wqs-shadow-md); border-color: var(--wqs-color-primary); }
.wqs-faq-card[open] { border-color: var(--faq-accent); box-shadow: 0 12px 24px -8px rgba(0, 0, 0, 0.15), 0 0 0 1px var(--faq-accent); background: linear-gradient(135deg, var(--wqs-color-surface), var(--faq-accent-bg)); }
/* Dark Mode Open State: Subtle accent tint */
.dark-mode .wqs-faq-card[open] { background: linear-gradient(135deg, #1e293b, rgba(99, 102, 241, 0.1)); box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.5), 0 0 0 1px var(--faq-accent); }
.wqs-faq-summary { list-style: none; display: flex; align-items: flex-start; justify-content: space-between; gap: 1.25rem; cursor: pointer; font-weight: 700; font-size: 1.05rem; color: var(--wqs-color-text); margin: 0; padding: 0; line-height: 1.5; }
.wqs-faq-summary::-webkit-details-marker { display: none; }
.wqs-faq-summary span:first-child { flex: 1; }
.wqs-faq-summary:focus-visible { outline: none; box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.18); border-radius: var(--wqs-radius-sm); }
.wqs-faq-toggle-icon { flex-shrink: 0; width: 32px; height: 32px; border-radius: 50%; background: var(--wqs-color-surface-alt); color: var(--wqs-color-text-muted); position: relative; display: flex; align-items: center; justify-content: center; transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); border: 1px solid var(--wqs-color-border); }
.dark-mode .wqs-faq-toggle-icon { background: rgba(255,255,255,0.05); border-color: rgba(255,255,255,0.1); }
.wqs-faq-toggle-icon::before, .wqs-faq-toggle-icon::after { content: ''; position: absolute; width: 12px; height: 2px; border-radius: 2px; background: currentColor; transition: var(--wqs-transition); }
.wqs-faq-toggle-icon::after { transform: rotate(90deg); }
.wqs-faq-card[open] .wqs-faq-toggle-icon { background: var(--faq-accent); color: #fff; transform: rotate(180deg); border-color: var(--faq-accent); box-shadow: 0 2px 5px rgba(0,0,0,0.2); }
.wqs-faq-card[open] .wqs-faq-toggle-icon::after { opacity: 0; transform: rotate(0deg); }
.wqs-faq-bg-icon { position: absolute; bottom: -20px; right: -20px; width: 140px; height: 140px; color: var(--faq-accent); opacity: 0.05; pointer-events: none; transition: all 0.5s ease; filter: grayscale(100%); }
.dark-mode .wqs-faq-bg-icon { opacity: 0.08; }
.wqs-faq-card[open] .wqs-faq-bg-icon { opacity: 0.1; transform: scale(1.1) rotate(-10deg); filter: grayscale(0%); }
.wqs-faq-content { margin-top: 1.5rem; font-size: 0.95rem; line-height: 1.7; color: var(--wqs-color-text-muted); position: relative; padding-top: 1rem; border-top: 1px solid rgba(0,0,0,0.05); animation: wqs-slide-down 0.3s ease; }
.dark-mode .wqs-faq-content { border-top-color: rgba(255,255,255,0.05); }
@keyframes wqs-slide-down { from { opacity: 0; transform: translateY(-5px); } to { opacity: 1; transform: translateY(0); } }
.wqs-faq-card.is-green { --faq-accent: #10b981; --faq-accent-bg: rgba(16, 185, 129, 0.1); }
.wqs-faq-card.is-blue { --faq-accent: #3b82f6; --faq-accent-bg: rgba(59, 130, 246, 0.1); }
.wqs-faq-card.is-indigo { --faq-accent: #6366f1; --faq-accent-bg: rgba(99, 102, 241, 0.1); }
.wqs-faq-card.is-purple { --faq-accent: #8b5cf6; --faq-accent-bg: rgba(139, 92, 246, 0.1); }
.wqs-faq-card.is-orange { --faq-accent: #f97316; --faq-accent-bg: rgba(249, 115, 22, 0.1); }
.wqs-faq-card.is-teal { --faq-accent: #14b8a6; --faq-accent-bg: rgba(20, 184, 166, 0.1); }
.wqs-faq-card.is-rose { --faq-accent: #f43f5e; --faq-accent-bg: rgba(244, 63, 94, 0.1); }
.wqs-faq-card.is-amber { --faq-accent: #f59e0b; --faq-accent-bg: rgba(245, 158, 11, 0.1); }
.wqs-faq-card.is-cyan { --faq-accent: #06b6d4; --faq-accent-bg: rgba(6, 182, 212, 0.1); }
.wqs-faq-card.is-lime { --faq-accent: #84cc16; --faq-accent-bg: rgba(132, 204, 22, 0.1); }
.wqs-faq-card.is-fuchsia { --faq-accent: #d946ef; --faq-accent-bg: rgba(217, 70, 239, 0.1); }
.wqs-faq-card.is-slate { --faq-accent: #64748b; --faq-accent-bg: rgba(100, 116, 139, 0.1); }

@media (max-width: 768px) { .wqs-results-header { flex-direction: column; align-items: flex-start; } .wqs-search-controls { width: 100%; justify-content: flex-start; } }

/* --- Module: Pricing --- */
.wqs-pricing-card { text-align: center; padding: 2.5rem 2rem; border: 1px solid var(--wqs-color-border); border-radius: var(--wqs-radius-lg); background: var(--wqs-color-surface); position: relative; }
.wqs-pricing-card.featured { border-color: var(--wqs-color-primary); box-shadow: var(--wqs-shadow-primary); transform: scale(1.05); z-index: 10; }
.wqs-price { font-size: 3rem; font-weight: 800; color: var(--wqs-color-text); line-height: 1; margin: 1.5rem 0; }
.wqs-price span { font-size: 1rem; font-weight: 500; color: var(--wqs-color-text-muted); }
.wqs-features-list { list-style: none; padding: 0; margin: 2rem 0; text-align: left; }
.wqs-features-list li { margin-bottom: 0.75rem; display: flex; align-items: center; gap: 0.75rem; color: var(--wqs-color-text-muted); }
.wqs-features-list li.active { color: var(--wqs-color-text); }
.wqs-features-list li::before { content: '✓'; color: var(--wqs-color-success); font-weight: bold; }

/* --- Module: User Center --- */
.wqs-dashboard-layout { display: grid; grid-template-columns: 240px 1fr; min-height: calc(100vh - var(--wqs-header-height)); max-width: var(--wqs-container-width); margin: 0 auto; padding: 0 1.5rem; }
.wqs-dash-sidebar { background: transparent; border-right: 1px solid var(--wqs-color-border); padding: 2rem 1rem 2rem 0; }
.wqs-dash-nav a { display: flex; align-items: center; gap: 0.75rem; padding: 0.75rem 1rem; color: var(--wqs-color-text-muted); border-radius: var(--wqs-radius); margin-bottom: 0.5rem; font-weight: 500; }
.wqs-dash-nav a:hover, .wqs-dash-nav a.active { background: var(--wqs-color-surface-alt); color: var(--wqs-color-primary); }
.wqs-dash-content { padding: 2rem; }

/* --- Footer --- */
.wqs-footer { background: var(--wqs-color-surface); border-top: 1px solid var(--wqs-color-border); padding: 4rem 0 2rem 0; margin-top: auto; }
.wqs-footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 2rem; margin-bottom: 3rem; }
.wqs-footer-col h4 { font-size: 1rem; margin-bottom: 1.25rem; }
.wqs-footer-col a { display: block; color: var(--wqs-color-text-muted); margin-bottom: 0.75rem; font-size: 0.95rem; }
.wqs-footer-col a:hover { color: var(--wqs-color-primary); }

/* --- Components: Modals --- */
.wqs-modal-backdrop { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0, 0, 0, 0.5); backdrop-filter: blur(4px); z-index: 2000; display: flex; align-items: center; justify-content: center; opacity: 0; pointer-events: none; transition: opacity 0.3s ease; }
.wqs-modal-backdrop.active { opacity: 1; pointer-events: auto; }
.wqs-modal { background: var(--wqs-color-surface); border-radius: var(--wqs-radius-lg); width: 100%; max-width: 480px; padding: 2rem; box-shadow: var(--wqs-shadow-lg); transform: translateY(20px); transition: transform 0.3s ease; }
.wqs-modal-backdrop.active .wqs-modal { transform: translateY(0); }
.wqs-modal-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 1.5rem; }
.wqs-modal-title { font-size: 1.25rem; font-weight: 700; margin: 0; }
.wqs-modal-close { background: none; border: none; font-size: 1.5rem; cursor: pointer; color: var(--wqs-color-text-muted); }

/* --- Components: FAQ (Standard) --- */
.wqs-faq-item { border: 1px solid var(--wqs-color-border); border-radius: var(--wqs-radius); margin-bottom: 1rem; background: var(--wqs-color-surface); overflow: hidden; }
.wqs-faq-item:hover { border-color: var(--wqs-color-text-muted); }
.wqs-faq-summary { padding: 1.25rem; cursor: pointer; font-weight: 600; display: flex; justify-content: space-between; align-items: center; list-style: none; }
.wqs-faq-content { padding: 0 1.25rem 1.25rem 1.25rem; color: var(--wqs-color-text-muted); border-top: 1px solid transparent; }
.wqs-faq-item[open] .wqs-faq-content { border-top-color: var(--wqs-color-divider); padding-top: 1.25rem; }

/* --- Components: Code Block --- */
.wqs-code-block { background: #1e293b; border-radius: var(--wqs-radius); padding: 1.5rem; color: #e2e8f0; font-family: 'Menlo', 'Monaco', 'Courier New', monospace; font-size: 0.875rem; overflow-x: auto; box-shadow: var(--wqs-shadow-lg); }
.wqs-code-header { display: flex; gap: 0.5rem; margin-bottom: 1rem; }
.wqs-code-dot { width: 10px; height: 10px; border-radius: 50%; }

/* --- Components: Auth Pages --- */
.wqs-auth-layout { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--wqs-color-surface-alt); padding: 1.5rem; }
.wqs-auth-card { width: 100%; max-width: 420px; background: var(--wqs-color-surface); padding: 2.5rem; border-radius: var(--wqs-radius-lg); box-shadow: var(--wqs-shadow-lg); }
.wqs-auth-header { text-align: center; margin-bottom: 2rem; }
.wqs-auth-logo { font-size: 2rem; font-weight: 800; color: var(--wqs-color-primary); margin-bottom: 0.5rem; display: inline-block; }

/* --- Components: Forms --- */
.wqs-form-group { margin-bottom: 1.25rem; }
.wqs-form-group label { display: block; font-weight: 500; margin-bottom: 0.5rem; font-size: 0.9rem; }
.wqs-checkbox { display: flex; align-items: center; gap: 0.75rem; cursor: pointer; user-select: none; }
.wqs-checkbox input { display: none; }
.wqs-checkbox-control { width: 1.25rem; height: 1.25rem; border: 2px solid var(--wqs-color-border); border-radius: 0.25rem; display: flex; align-items: center; justify-content: center; transition: var(--wqs-transition); }
.wqs-checkbox input:checked + .wqs-checkbox-control { background: var(--wqs-color-primary); border-color: var(--wqs-color-primary); }
.wqs-checkbox-control::after { content: '✓'; color: white; font-size: 0.8rem; display: none; }
.wqs-checkbox input:checked + .wqs-checkbox-control::after { display: block; }

/* --- Components: Blog --- */
.wqs-blog-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 2rem; }
.wqs-blog-card { overflow: hidden; display: flex; flex-direction: column; height: 100%; }
.wqs-blog-body { padding: 1.5rem; flex: 1; display: flex; flex-direction: column; }
.wqs-tag { display: inline-block; padding: 0.25rem 0.75rem; background: var(--wqs-color-surface-alt); color: var(--wqs-color-primary); border-radius: 9999px; font-size: 0.75rem; font-weight: 600; }
.wqs-blog-title { font-size: 1.25rem; margin: 0.75rem 0; }
.wqs-blog-title a:hover { color: var(--wqs-color-primary); }
.wqs-blog-excerpt { color: var(--wqs-color-text-muted); font-size: 0.95rem; flex: 1; margin-bottom: 1.5rem; }
.wqs-blog-meta { display: flex; justify-content: space-between; font-size: 0.875rem; color: var(--wqs-color-text-light); border-top: 1px solid var(--wqs-color-divider); padding-top: 1rem; }

/* --- Components: Tables (for User Center) --- */
.wqs-table { width: 100%; border-collapse: collapse; text-align: left; }
.wqs-table th { padding: 1rem; border-bottom: 2px solid var(--wqs-color-border); font-weight: 600; color: var(--wqs-color-text-muted); }
.wqs-table td { padding: 1rem; border-bottom: 1px solid var(--wqs-color-divider); }
.wqs-table tr:last-child td { border-bottom: none; }

/* --- Components: Settings Forms --- */
.wqs-setting-section { margin-bottom: 2rem; padding-bottom: 2rem; border-bottom: 1px solid var(--wqs-color-divider); }
.wqs-setting-section:last-child { border-bottom: none; }

/* --- Component: Layout Switcher --- */
.wqs-layout-switcher { display: flex; gap: 0.25rem; background: var(--wqs-color-surface); border: 1px solid var(--wqs-color-border); padding: 0.25rem; border-radius: var(--wqs-radius-sm); }
.wqs-layout-switcher .wqs-btn-icon { width: 32px; height: 32px; border-radius: var(--wqs-radius-sm); padding: 0; display: flex; align-items: center; justify-content: center; background: transparent; color: var(--wqs-color-text-muted); }
.wqs-layout-switcher .wqs-btn-icon:hover { background: var(--wqs-color-surface-alt); color: var(--wqs-color-text); }
.wqs-layout-switcher .wqs-btn-icon.active { background: var(--wqs-color-surface-alt); color: var(--wqs-color-primary); box-shadow: 0 1px 2px rgba(0,0,0,0.05); }

/* --- Component: Skeleton Loading --- */
.wqs-skeleton-card { display: flex; gap: 1.5rem; padding: 1.5rem; background: var(--wqs-color-surface); border: 1px solid var(--wqs-color-border); border-radius: var(--wqs-radius); margin-bottom: 1rem; }
.wqs-sk-thumb { width: 180px; height: 120px; background: var(--wqs-color-surface-alt); border-radius: var(--wqs-radius-sm); animation: wqs-pulse 1.5s infinite; flex-shrink: 0; }
.wqs-sk-content { flex: 1; }
.wqs-sk-line { height: 1rem; background: var(--wqs-color-surface-alt); border-radius: 0.25rem; margin-bottom: 0.75rem; animation: wqs-pulse 1.5s infinite; }
.wqs-sk-line.short { width: 60%; }
.wqs-sk-line.title { height: 1.5rem; width: 80%; margin-bottom: 1rem; }
.wqs-results-grid .wqs-skeleton-card { flex-direction: column; height: 100%; margin-bottom: 0; }
.wqs-results-grid .wqs-sk-thumb { width: 100%; height: 180px; }

/* --- Responsive --- */
@media (max-width: 768px) { .wqs-hero h1 { font-size: 2.5rem; } .wqs-grid-cols-2, .wqs-grid-cols-3, .wqs-grid-cols-4 { grid-template-columns: 1fr; } .wqs-footer-grid { grid-template-columns: 1fr; gap: 2rem; } .wqs-dashboard-layout { grid-template-columns: 1fr; } .wqs-dash-sidebar { display: none; } }

/* --- Component: Service Tabs --- */
.wqs-service-tabs { background: var(--wqs-color-surface); border-bottom: 1px solid var(--wqs-color-border); padding: 0; }
.wqs-service-tabs .wqs-container { display: flex; gap: 2rem; }
.wqs-service-tab { display: flex; align-items: center; gap: 0.5rem; padding: 1rem 0; color: var(--wqs-color-text-muted); font-weight: 600; font-size: 0.95rem; border-bottom: 2px solid transparent; transition: var(--wqs-transition); }
.wqs-service-tab:hover { color: var(--wqs-color-text); }
.wqs-service-tab.active { color: var(--wqs-color-primary); border-bottom-color: var(--wqs-color-primary); }
.wqs-service-tab.disabled { opacity: 0.5; cursor: not-allowed; }

/* --- Component: Sidebar Groups --- */
.wqs-sidebar-group { margin-bottom: 2rem; }
.wqs-sidebar-title { font-size: 0.75rem; font-weight: 700; text-transform: uppercase; color: var(--wqs-color-text-light); margin-bottom: 0.75rem; padding-left: 1rem; letter-spacing: 0.05em; }

/* --- Components: Avatars --- */
.wqs-avatar { width: 32px; height: 32px; background: var(--wqs-color-primary); color: white; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-weight: bold; font-size: 0.875rem; flex-shrink: 0; }
.wqs-avatar-lg { width: 80px; height: 80px; font-size: 2rem; }
.wqs-avatar-sm { width: 24px; height: 24px; font-size: 0.75rem; }
.wqs-avatar-wrapper { position: relative; cursor: pointer; display: inline-block; }
.wqs-avatar-overlay { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.5); border-radius: 50%; display: flex; align-items: center; justify-content: center; color: white; opacity: 0; transition: opacity 0.2s; }
.wqs-avatar-wrapper:hover .wqs-avatar-overlay { opacity: 1; }

/* --- Components: Progress Bars --- */
.wqs-progress-track { height: 8px; background: var(--wqs-color-border); border-radius: 4px; overflow: hidden; }
.wqs-progress-bar { height: 100%; background: var(--wqs-color-primary); transition: width 0.3s ease; }
.wqs-progress-bar.success { background: var(--wqs-color-success); }
.wqs-progress-bar.warning { background: var(--wqs-color-warning); }
.wqs-progress-bar.danger { background: var(--wqs-color-danger); }

/* --- Components: List Items --- */
.wqs-list-item { display: flex; align-items: center; gap: 1rem; padding: 1rem; border: 1px solid var(--wqs-color-border); border-radius: var(--wqs-radius); background: var(--wqs-color-surface); transition: var(--wqs-transition); }
.wqs-list-item:hover { border-color: var(--wqs-color-primary); }

/* --- Utilities: Backgrounds & Borders --- */
.wqs-bg-alt { background: var(--wqs-color-surface-alt) !important; }
.wqs-bg-surface { background: var(--wqs-color-surface) !important; }
.wqs-bg-gradient-surface { background: linear-gradient(to right, var(--wqs-color-surface), #f8fafc); }
.wqs-border-top { border-top: 1px solid var(--wqs-color-divider); }
.wqs-border-bottom { border-bottom: 1px solid var(--wqs-color-divider); }

/* --- Utilities: Sizing & Overflow --- */
.wqs-w-full { width: 100%; }
.wqs-h-full { height: 100%; }
.wqs-h-200 { height: 200px; }
.wqs-max-h-200 { max-height: 200px; }
.wqs-overflow-y-auto { overflow-y: auto; }
.wqs-mw-300 { max-width: 300px; }

/* --- Utilities: Table Container --- */
.wqs-table-container { border: 1px solid var(--wqs-color-border); border-radius: var(--wqs-radius); overflow: hidden; }
.wqs-table th, .wqs-table td { padding: 0.75rem 1rem; }

/* --- Components: Status Card --- */
.wqs-status-card { display: flex; align-items: center; gap: 1rem; padding: 1rem; background: var(--wqs-color-surface-alt); border-radius: var(--wqs-radius); }
.wqs-status-icon { width: 40px; height: 40px; border-radius: 50%; display: flex; align-items: center; justify-content: center; color: white; flex-shrink: 0; }
.wqs-status-icon.success { background: var(--wqs-color-success); }
.wqs-status-icon.warning { background: var(--wqs-color-warning); }
.wqs-status-icon.danger { background: var(--wqs-color-danger); }
.wqs-status-content { flex: 1; }
.wqs-status-title { font-size: 1rem; font-weight: 600; margin: 0 0 0.25rem 0; }
.wqs-status-value { font-size: 1.5rem; font-weight: 800; color: var(--wqs-color-text); }
.wqs-status-indicator { width: 12px; height: 12px; border-radius: 50%; display: inline-block; margin-right: 8px; }
.wqs-status-ok { background-color: var(--wqs-color-success); box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.1); }
.wqs-status-warning { background-color: var(--wqs-color-warning); box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.1); }
.wqs-status-error { background-color: var(--wqs-color-danger); box-shadow: 0 0 0 4px rgba(239, 68, 68, 0.1); }

/* --- Components: Readonly Input --- */
.wqs-input[readonly], .wqs-input:disabled { background: var(--wqs-color-surface-alt); color: var(--wqs-color-text-muted); cursor: not-allowed; }
@media (min-width: 768px) { .md\:wqs-grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); } .md\:wqs-grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
@media (min-width: 1024px) { .lg\:wqs-grid-cols-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); } .lg\:wqs-grid-cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); } }
.wqs-indices-details summary { list-style: none; }
.wqs-indices-details summary::-webkit-details-marker { display: none; }
.wqs-indices-details[open] summary svg { transform: rotate(180deg); }
.wqs-indices-details summary svg { transition: transform 0.2s; }

/* Modern Tabs Component with Shimmer Effect */
.wqs-tab-modern { position: relative; display: inline-flex; align-items: center; gap: 0.5rem; padding: 0.625rem 1rem; border-radius: var(--wqs-radius); color: var(--wqs-color-text-muted); font-weight: 600; font-size: 0.9rem; transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1); overflow: hidden; background: transparent; border: 1px solid transparent; text-decoration: none; white-space: nowrap; }
.wqs-tab-modern:hover { color: var(--wqs-color-text); background: var(--wqs-color-surface-alt); }
.wqs-tab-modern.active { background: rgba(99, 102, 241, 0.08); color: var(--wqs-color-primary); border-color: rgba(99, 102, 241, 0.1); box-shadow: 0 1px 2px rgba(99, 102, 241, 0.05); }
.wqs-tab-modern.active::before { content: ''; position: absolute; top: 0; left: -100%; width: 50%; height: 100%; background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.6), transparent); transform: skewX(-20deg); animation: wqs-shimmer-slide 3s infinite; pointer-events: none; }
.dark-mode .wqs-tab-modern.active { background: rgba(99, 102, 241, 0.15); color: #818cf8; border-color: rgba(99, 102, 241, 0.2); }
.dark-mode .wqs-tab-modern.active::before { background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.1), transparent); }
@keyframes wqs-shimmer-slide { 0% { left: -100%; } 20% { left: 200%; } 100% { left: 200%; } }