/**
 * Portalyaoi Interactive Tools Stylesheet
 * Clean, lightweight, modern Light Theme UI components.
 */

/* ==========================================================================
   1. Tools Hub & Directory Styles
   ========================================================================== */
.tools-hero {
	background: linear-gradient(135deg, #ffffff 0%, #f1f5f9 100%);
	border-bottom: 1px solid var(--border-color);
	padding: 3.5rem 0 3rem;
	text-align: center;
}

html[data-theme="dark"] .tools-hero {
	background: linear-gradient(135deg, #0b0f19 0%, #151d30 100%);
	border-bottom-color: var(--border-color);
}

.tools-badge {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	padding: 4px 14px;
	background: var(--color-primary-light);
	color: var(--color-primary);
	border-radius: var(--radius-full);
	font-size: 0.8125rem;
	font-weight: 700;
	margin-bottom: 1rem;
	text-transform: uppercase;
	letter-spacing: 0.5px;
}

.tools-title {
	font-size: 2.5rem;
	font-weight: 800;
	color: var(--text-primary);
	margin-bottom: 0.75rem;
	letter-spacing: -0.5px;
	line-height: 1.2;
}

.tools-subtitle {
	font-size: 1.125rem;
	color: var(--text-muted);
	max-width: 680px;
	margin: 0 auto;
	line-height: 1.6;
}

.tools-grid {
	display: grid;
	grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
	gap: 1.5rem;
	margin-top: 2.5rem;
}

.tool-card {
	background: var(--bg-surface);
	border: 1px solid var(--border-color);
	border-radius: var(--radius-lg);
	padding: 1.75rem;
	display: flex;
	flex-direction: column;
	transition: transform var(--transition-normal), box-shadow var(--transition-normal), border-color var(--transition-normal);
	box-shadow: var(--shadow-sm);
	position: relative;
	text-decoration: none;
	color: inherit;
}

.tool-card:hover {
	transform: translateY(-4px);
	box-shadow: var(--shadow-lg);
	border-color: var(--color-primary);
}

.tool-card-icon {
	width: 52px;
	height: 52px;
	border-radius: var(--radius-md);
	background: var(--color-primary-light);
	color: var(--color-primary);
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 1.75rem;
	margin-bottom: 1.25rem;
}

.tool-card-category {
	font-size: 0.75rem;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.5px;
	color: var(--color-accent);
	margin-bottom: 0.35rem;
}

.tool-card-title {
	font-size: 1.25rem;
	font-weight: 700;
	color: var(--text-primary);
	margin-bottom: 0.5rem;
	line-height: 1.35;
}

.tool-card-desc {
	font-size: 0.9375rem;
	color: var(--text-secondary);
	line-height: 1.6;
	margin-bottom: 1.25rem;
	flex-grow: 1;
}

.tool-card-footer {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding-top: 1rem;
	border-top: 1px solid var(--border-color);
	font-size: 0.875rem;
	font-weight: 600;
	color: var(--color-primary);
}

/* ==========================================================================
   2. Interactive Tool Container & Form Controls
   ========================================================================== */
.tool-workbench {
	background: var(--bg-surface);
	border: 1px solid var(--border-color);
	border-radius: var(--radius-lg);
	box-shadow: var(--shadow-md);
	padding: 2.25rem;
	margin-bottom: 3rem;
}

.tool-form-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
	gap: 1.5rem;
	margin-bottom: 2rem;
}

.tool-field {
	display: flex;
	flex-direction: column;
	gap: 0.5rem;
}

.tool-label {
	font-size: 0.875rem;
	font-weight: 700;
	color: var(--text-primary);
	display: flex;
	align-items: center;
	justify-content: space-between;
}

.tool-select,
.tool-input {
	width: 100%;
	padding: 0.75rem 1rem;
	font-size: 0.9375rem;
	color: var(--text-primary);
	background: var(--bg-surface);
	border: 1px solid var(--border-color);
	border-radius: var(--radius-md);
	outline: none;
	transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.tool-select:focus,
.tool-input:focus {
	border-color: var(--color-primary);
	box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.tool-btn-primary {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	padding: 0.875rem 1.75rem;
	font-size: 1rem;
	font-weight: 700;
	color: #ffffff;
	background: var(--color-primary);
	border: none;
	border-radius: var(--radius-md);
	cursor: pointer;
	transition: background var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
	box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25);
}

.tool-btn-primary:hover {
	background: var(--color-primary-hover);
	transform: translateY(-2px);
	box-shadow: 0 6px 16px rgba(99, 102, 241, 0.35);
}

.tool-btn-secondary {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 6px;
	padding: 0.75rem 1.25rem;
	font-size: 0.875rem;
	font-weight: 600;
	color: var(--text-primary);
	background: var(--bg-surface-elevated);
	border: 1px solid var(--border-color);
	border-radius: var(--radius-md);
	cursor: pointer;
	transition: background var(--transition-fast), border-color var(--transition-fast);
}

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

/* ==========================================================================
   3. Result Card & Display Panels
   ========================================================================== */
.tool-result-panel {
	background: var(--bg-surface-elevated);
	border: 1px solid var(--border-color);
	border-radius: var(--radius-md);
	padding: 2rem;
	margin-top: 2rem;
	position: relative;
}

.tool-result-header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	margin-bottom: 1.25rem;
	padding-bottom: 1rem;
	border-bottom: 1px solid var(--border-color);
}

.tool-result-title {
	font-size: 1.25rem;
	font-weight: 700;
	color: var(--text-primary);
	display: flex;
	align-items: center;
	gap: 8px;
}

.tool-copy-btn {
	background: var(--bg-surface);
	border: 1px solid var(--border-color);
	color: var(--text-secondary);
	font-size: 0.8125rem;
	font-weight: 600;
	padding: 6px 12px;
	border-radius: var(--radius-sm);
	cursor: pointer;
	display: inline-flex;
	align-items: center;
	gap: 6px;
	transition: all var(--transition-fast);
}

.tool-copy-btn:hover {
	color: var(--color-primary);
	border-color: var(--color-primary);
	background: var(--color-primary-light);
}

.tool-copy-btn.copied {
	background: #10b981;
	color: #ffffff;
	border-color: #10b981;
}

/* ==========================================================================
   4. Stats & Metrics Cards (Reading Time & Canvas Calculator)
   ========================================================================== */
.metrics-grid {
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
	gap: 1.25rem;
	margin-bottom: 1.5rem;
}

.metric-box {
	background: var(--bg-surface);
	border: 1px solid var(--border-color);
	border-radius: var(--radius-md);
	padding: 1.25rem;
	text-align: center;
	box-shadow: var(--shadow-sm);
}

.metric-value {
	font-size: 2rem;
	font-weight: 800;
	color: var(--color-primary);
	line-height: 1.1;
	margin-bottom: 0.35rem;
}

.metric-label {
	font-size: 0.8125rem;
	font-weight: 600;
	color: var(--text-muted);
	text-transform: uppercase;
	letter-spacing: 0.5px;
}

/* ==========================================================================
   5. Interactive Selection Pills & Radio Tags
   ========================================================================== */
.pills-group {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
}

.pill-option {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	padding: 8px 16px;
	font-size: 0.875rem;
	font-weight: 600;
	background: var(--bg-surface);
	border: 1px solid var(--border-color);
	border-radius: var(--radius-full);
	color: var(--text-secondary);
	cursor: pointer;
	user-select: none;
	transition: all var(--transition-fast);
}

.pill-option:hover {
	border-color: var(--color-primary);
	color: var(--color-primary);
}

.pill-option.selected {
	background: var(--color-primary);
	border-color: var(--color-primary);
	color: #ffffff;
}

/* ==========================================================================
   6. Chemistry & Compatibility Gauge
   ========================================================================== */
.chemistry-gauge-wrap {
	display: flex;
	align-items: center;
	gap: 1.5rem;
	background: var(--bg-surface);
	border: 1px solid var(--border-color);
	border-radius: var(--radius-md);
	padding: 1.5rem;
	margin-bottom: 1.5rem;
}

.gauge-score-circle {
	width: 80px;
	height: 80px;
	border-radius: 50%;
	background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-primary) 100%);
	display: flex;
	align-items: center;
	justify-content: center;
	color: #ffffff;
	font-size: 1.75rem;
	font-weight: 800;
	flex-shrink: 0;
	box-shadow: 0 4px 14px rgba(244, 63, 94, 0.3);
}

.gauge-details {
	flex-grow: 1;
}

.gauge-bar-track {
	height: 10px;
	background: var(--bg-surface-elevated);
	border-radius: var(--radius-full);
	overflow: hidden;
	margin: 0.5rem 0;
}

.gauge-bar-fill {
	height: 100%;
	background: linear-gradient(90deg, #10b981, #f59e0b, #f43f5e);
	border-radius: var(--radius-full);
	transition: width 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ==========================================================================
   7. Glossary Dictionary Cards
   ========================================================================== */
.glossary-card {
	background: var(--bg-surface);
	border: 1px solid var(--border-color);
	border-radius: var(--radius-md);
	padding: 1.5rem;
	box-shadow: var(--shadow-sm);
	transition: transform var(--transition-fast), border-color var(--transition-fast);
}

.glossary-card:hover {
	border-color: var(--color-primary);
	transform: translateY(-2px);
}

.glossary-term-header {
	display: flex;
	align-items: baseline;
	justify-content: space-between;
	margin-bottom: 0.5rem;
}

.glossary-term {
	font-size: 1.25rem;
	font-weight: 800;
	color: var(--text-primary);
}

.glossary-origin-badge {
	font-size: 0.6875rem;
	font-weight: 700;
	text-transform: uppercase;
	padding: 2px 8px;
	border-radius: var(--radius-sm);
	background: var(--bg-surface-elevated);
	color: var(--text-secondary);
	border: 1px solid var(--border-color);
}

.glossary-def {
	font-size: 0.9375rem;
	color: var(--text-secondary);
	line-height: 1.6;
}

.glossary-example {
	margin-top: 0.75rem;
	padding: 0.5rem 0.75rem;
	background: var(--bg-surface-elevated);
	border-left: 3px solid var(--color-primary);
	font-size: 0.8125rem;
	color: var(--text-muted);
	font-style: italic;
}

/* Responsive adjustments */
@media (max-width: 768px) {
	.tools-title {
		font-size: 2rem;
	}
	.tools-grid {
		grid-template-columns: 1fr;
	}
	.tool-workbench {
		padding: 1.5rem;
	}
	.chemistry-gauge-wrap {
		flex-direction: column;
		text-align: center;
	}
}

/* ==========================================================================
   Comprehensive Editorial, Guide & Formatting Design System
   Eliminates Thin Content & Ensures Authoritative E-E-A-T Formatting
   ========================================================================== */
.tool-editorial-section {
	background: var(--bg-surface);
	border: 1px solid var(--border-color);
	border-radius: var(--radius-xl);
	padding: clamp(1.75rem, 4vw, 3.25rem);
	margin-top: 3.5rem;
	box-shadow: var(--shadow-sm);
	transition: background var(--transition-normal), border-color var(--transition-normal);
}

.tool-editorial-content {
	color: var(--text-secondary);
	font-size: 1.0625rem;
	line-height: 1.85;
}

.tool-editorial-content h2 {
	font-size: clamp(1.5rem, 2.4vw, 2.1rem);
	font-weight: 800;
	color: var(--text-primary);
	margin-top: 2.75rem;
	margin-bottom: 1.25rem;
	line-height: 1.3;
	border-bottom: 2px solid var(--border-color);
	padding-bottom: 0.85rem;
	letter-spacing: -0.02em;
}

.tool-editorial-content h2:first-child {
	margin-top: 0;
}

.tool-editorial-content h3 {
	font-size: clamp(1.15rem, 1.8vw, 1.45rem);
	font-weight: 700;
	color: var(--color-primary);
	margin-top: 2rem;
	margin-bottom: 0.85rem;
	line-height: 1.4;
	display: flex;
	align-items: center;
	gap: 0.5rem;
}

.tool-editorial-content h4 {
	font-size: 1.1rem;
	font-weight: 700;
	color: var(--text-primary);
	margin-top: 1.5rem;
	margin-bottom: 0.5rem;
}

.tool-editorial-content p {
	margin-top: 0;
	margin-bottom: 1.4rem;
	color: var(--text-secondary);
	font-size: 1.0625rem;
	line-height: 1.85;
	text-align: justify;
	text-justify: inter-word;
}

.tool-editorial-content ul,
.tool-editorial-content ol {
	margin: 1.25rem 0 1.75rem 1.75rem;
	padding-left: 0.5rem;
	color: var(--text-secondary);
	line-height: 1.85;
	font-size: 1.025rem;
}

.tool-editorial-content li {
	margin-bottom: 0.75rem;
}

.tool-editorial-content li strong {
	color: var(--text-primary);
	font-weight: 700;
}

.tool-pro-tip {
	background: linear-gradient(135deg, rgba(124, 58, 237, 0.08) 0%, rgba(244, 63, 94, 0.06) 100%);
	border-left: 4px solid var(--color-primary);
	border-radius: 0 var(--radius-md) var(--radius-md) 0;
	padding: 1.25rem 1.75rem;
	margin: 2rem 0;
	color: var(--text-secondary);
}

.tool-pro-tip strong {
	color: var(--color-primary);
	display: block;
	font-size: 1.05rem;
	margin-bottom: 0.35rem;
}

.tool-pro-tip p {
	margin: 0;
	font-size: 0.975rem;
	line-height: 1.7;
	text-align: left;
}

.tool-spec-table {
	width: 100%;
	border-collapse: separate;
	border-spacing: 0;
	border: 1px solid var(--border-color);
	border-radius: var(--radius-md);
	overflow: hidden;
	margin: 2rem 0;
	background: var(--bg-surface);
}

.tool-spec-table th {
	background: var(--bg-surface-elevated);
	color: var(--text-primary);
	font-weight: 700;
	padding: 14px 18px;
	text-transform: uppercase;
	font-size: 0.8125rem;
	letter-spacing: 0.04em;
	text-align: left;
	border-bottom: 1px solid var(--border-color);
}

.tool-spec-table td {
	padding: 14px 18px;
	border-top: 1px solid var(--border-color);
	color: var(--text-secondary);
	font-size: 0.95rem;
	line-height: 1.6;
}

.tool-spec-table tr:first-child td {
	border-top: none;
}

@media (max-width: 640px) {
	.tool-spec-table th,
	.tool-spec-table td {
		padding: 10px 12px;
		font-size: 0.875rem;
	}
}

.faq-accordion-group {
	margin-top: 2rem;
	display: flex;
	flex-direction: column;
	gap: 1rem;
}

.faq-item {
	background: var(--bg-surface-elevated);
	border: 1px solid var(--border-color);
	border-radius: var(--radius-md);
	padding: 1.25rem 1.75rem;
	transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.faq-item:hover {
	border-color: var(--color-primary);
}

.faq-question {
	font-weight: 700;
	font-size: 1.125rem;
	color: var(--text-primary);
	margin: 0 0 0.65rem 0;
	display: flex;
	align-items: center;
	gap: 0.5rem;
}

.faq-answer {
	font-size: 0.985rem;
	line-height: 1.8;
	color: var(--text-secondary);
	margin: 0;
	text-align: justify;
}

/* ==========================================================================
   8. Responsive Tables & Cross-Links Grid
   ========================================================================== */
.tool-table-responsive {
	width: 100%;
	overflow-x: auto;
	-webkit-overflow-scrolling: touch;
	margin: 2rem 0;
	border: 1px solid var(--border-color);
	border-radius: var(--radius-md);
	background: var(--bg-surface);
}

.tool-table-responsive .tool-spec-table {
	margin: 0;
	border: none;
	border-radius: 0;
	min-width: 600px;
}

.related-tools-section {
	margin-top: 4rem;
	padding-top: 2.5rem;
	border-top: 1px solid var(--border-color);
}

.related-tools-title {
	font-size: 1.5rem;
	font-weight: 800;
	color: var(--text-primary);
	margin-bottom: 0.5rem;
}

.related-tools-subtitle {
	color: var(--text-muted);
	font-size: 0.9375rem;
	margin-bottom: 1.75rem;
}