@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=Manrope:wght@400;500;600;700;800&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root {
	--font-body: 'Manrope', sans-serif;
	--font-display: 'DM Serif Display', serif;
	--font-mono: 'IBM Plex Mono', monospace;
	--bg-color: #F8F6F1;
	--bg-pattern: #EDE9E0;
	--text-main: #1B1B1B;
	--text-secondary: #6B6560;
	--brand-primary: #C2410C;
	--brand-secondary: #EA580C;
	--brand-accent: #0D9488;
	--brand-accent-strong: #0F766E;
	--card-bg: #ffffff;
	--card-border: #E8E4DD;
	--card-shadow: 0 4px 16px rgba(0, 0, 0, 0.05);
	--soft-shadow: 0 4px 14px rgba(0, 0, 0, 0.04);
	--tab-bg: #F0ECE4;
	--tab-active-bg: #0F766E;
	--tab-active-border: #0F766E;
	--muted-bg: #F0ECE4;
	--border-color: #E8E4DD;
	--input-border: #D8D3CB;
	--input-focus: rgba(194, 65, 12, 0.3);
	--nav-bg: rgba(248, 246, 241, 0.92);
	--nav-border: #E8E4DD;

	/* Semantic button colors - Light theme */
	--btn-create: #2D8C5F;
	--btn-create-hover: #24764F;
	--btn-analyze: #0F766E;
	--btn-analyze-hover: #0B6460;
	--btn-export: #7E6399;
	--btn-export-hover: #6B5384;
	--btn-import: #B45309;
	--btn-import-hover: #9A4608;
	--btn-danger: #B91C1C;
	--btn-danger-hover: #991B1B;
	--btn-utility: #0E8A7F;
	--btn-utility-hover: #0C766C;
	--btn-neutral: #6B6560;
	--btn-neutral-hover: #5A534E;

	/* Special amber buttons for Uncertainties */
	--btn-apply: #F59E0B;
	--btn-apply-hover: #D97706;
	--btn-apply-text: #1B1B1B;
}

[data-theme="dark"] {
	--bg-color: #111110;
	--bg-pattern: #1A1A18;
	--text-main: #EDEBE8;
	--text-secondary: #9C9890;
	--brand-primary: #FB923C;
	--brand-secondary: #F97316;
	--brand-accent: #5EEAD4;
	--brand-accent-strong: #2DD4BF;
	--card-bg: #1A1A19;
	--card-border: #2A2A28;
	--card-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
	--soft-shadow: 0 4px 14px rgba(0, 0, 0, 0.3);
	--tab-bg: #222220;
	--tab-active-bg: #5EEAD4;
	--tab-active-border: #5EEAD4;
	--muted-bg: #222220;
	--border-color: #2A2A28;
	--input-border: #3A3A36;
	--input-focus: rgba(251, 146, 60, 0.3);
	--nav-bg: rgba(17, 17, 16, 0.9);
	--nav-border: rgba(255, 255, 255, 0.06);

	/* Semantic button colors - Dark theme */
	--btn-create: #4ADE80;
	--btn-create-hover: #3ECC72;
	--btn-analyze: #5EEAD4;
	--btn-analyze-hover: #4DD8C6;
	--btn-export: #C4A8E0;
	--btn-export-hover: #B396D4;
	--btn-import: #FB923C;
	--btn-import-hover: #F0832A;
	--btn-danger: #F87171;
	--btn-danger-hover: #EF4444;
	--btn-utility: #4DD8C6;
	--btn-utility-hover: #3DC8B6;
	--btn-neutral: #9C9890;
	--btn-neutral-hover: #8A847E;

	/* Special amber buttons for Uncertainties */
	--btn-apply: #FDE68A;
	--btn-apply-hover: #E2CC78;
	--btn-apply-text: #1B1B1B;
}

* {
	box-sizing: border-box;
}

html,
body {
	margin: 0;
	padding: 0;
	overflow-x: hidden;
	font-family: var(--font-body);
	background-color: var(--bg-color);
	background-image: radial-gradient(var(--bg-pattern) 1px, transparent 1px);
	background-size: 30px 30px;
	color: var(--text-main);
}

/* Banner */
.banner {
	display: grid;
	grid-template-columns: 1fr auto 1fr;
	align-items: center;
	background-color: var(--nav-bg);
	color: var(--text-main);
	padding: 6px 20px;
	font-size: 22px;
	font-weight: 600;
	position: sticky;
	top: 0;
	z-index: 10;
	backdrop-filter: blur(10px);
	border-bottom: 1px solid var(--nav-border);
	box-shadow: var(--soft-shadow);
}

.banner-logo {
	display: flex;
	align-items: center;
	justify-self: start;
}

.banner-logo a {
	display: flex;
	align-items: center;
	line-height: 0;
}

.banner-logo img {
	display: block;
	max-height: 38px;
	margin-right: 8px;
}

.banner-title {
	justify-self: center;
	text-align: center;
	font-size: 1.5rem;
	font-family: var(--font-display);
	letter-spacing: -0.5px;
	background: linear-gradient(135deg, var(--brand-primary), var(--brand-accent));
	-webkit-background-clip: text;
	-webkit-text-fill-color: transparent;
	background-clip: text;
}

.banner-buttons {
	display: flex;
	justify-content: flex-end;
	margin-right: 5px;
	gap: 10px;
	align-items: center;
	justify-self: end;
}

.banner-button {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	text-align: center;
	background: var(--muted-bg);
	border: 1px solid var(--border-color);
	color: var(--text-main);
	text-decoration: none;
	cursor: pointer;
	font-size: 0.9rem;
	padding: 6px 14px;
	border-radius: 999px;
	transition: background-color 0.2s ease, transform 0.2s ease, border-color 0.2s ease;
}

.banner-button:hover {
	background-color: rgba(15, 118, 110, 0.1);
	transform: translateY(-1px);
	border-color: var(--btn-analyze);
	color: var(--btn-analyze);
}

[data-theme="dark"] .banner-button:hover {
	background-color: rgba(94, 234, 212, 0.15);
	border-color: var(--btn-analyze);
	color: var(--btn-analyze);
}

.theme-toggle button {
	background: transparent;
	border: none;
	cursor: pointer;
	font-size: 1.1rem;
	padding: 6px;
	border-radius: 50%;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	color: var(--text-main);
	box-shadow: none;
	min-width: 42px;
	min-height: 42px;
	line-height: 1;
	transition: transform 0.2s ease, background-color 0.2s ease;
}

.theme-toggle button:hover {
	background-color: rgba(194, 65, 12, 0.15);
	transform: rotate(15deg);
}

/* Reminder and Toggle */
.reminder {
	color: var(--text-secondary);
	font-size: 0.85rem;
	text-align: center;
	padding: 10px 20px;
	background: var(--card-bg);
	border-bottom: 1px solid var(--border-color);
	position: relative;
}

.latex-toggle-container {
	position: absolute;
	right: 20px;
	top: 50%;
	transform: translateY(-50%);
	display: flex;
	align-items: center;
	gap: 8px;
}

/* Toggle Switch */
.switch {
	position: relative;
	display: inline-block;
	width: 42px;
	height: 20px;
}

.switch input {
	opacity: 0;
	width: 0;
	height: 0;
}

.slider {
	position: absolute;
	cursor: pointer;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	background-color: #C4BFB6;
	transition: 0.3s ease;
	border-radius: 20px;
}

[data-theme="dark"] .slider {
	background-color: #4A4A46;
}

.slider:before {
	position: absolute;
	content: "";
	height: 16px;
	width: 16px;
	left: 2px;
	bottom: 2px;
	background-color: #fff;
	transition: 0.3s ease;
	border-radius: 50%;
	box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.switch input:checked+.slider {
	background-color: var(--brand-accent);
}

[data-theme="dark"] .switch input:checked+.slider {
	background-color: #5EEAD4;
}

.switch input:checked+.slider:before {
	transform: translateX(22px);
}

/* Specific yellow color for Uncertainty Toggles */
#toggle-x-error:checked+.slider,
#toggle-y-error:checked+.slider {
	background-color: var(--btn-apply);
}

[data-theme="dark"] #toggle-x-error:checked+.slider,
[data-theme="dark"] #toggle-y-error:checked+.slider {
	background-color: #FDE68A;
}

.toggle-label {
	font-size: 0.85rem;
	color: var(--text-main);
}

/* Dataset Tabs Bar */
.dataset-tabs-bar {
	display: flex;
	align-items: center;
	padding: 4px 20px 0 36px;
	background-color: var(--bg-color);
	flex-wrap: nowrap;
	overflow-x: auto;
	-webkit-overflow-scrolling: touch;
	scrollbar-width: thin;
}

.dataset-tabs-bar::-webkit-scrollbar {
	height: 6px;
}

.dataset-tabs-bar::-webkit-scrollbar-track {
	background: transparent;
}

.dataset-tabs-bar::-webkit-scrollbar-thumb {
	background: rgba(99, 110, 114, 0.3);
	border-radius: 3px;
}

.dataset-tabs-bar::-webkit-scrollbar-thumb:hover {
	background: rgba(99, 110, 114, 0.5);
}

/* Dataset Tabs */
.dataset-tab {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-width: 0;
	padding: 10px 16px;
	margin-right: 6px;
	line-height: 1.2;
	background-color: var(--tab-bg);
	color: var(--text-secondary);
	border: 1px solid transparent;
	border-bottom: none;
	border-top-left-radius: 10px;
	border-top-right-radius: 10px;
	cursor: pointer;
	transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
	font-size: 0.9rem;
	font-weight: 500;
}

[data-theme="dark"] .dataset-tab:not(.active),
[data-theme="dark"] .add-dataset-btn {
	background-color: rgba(255, 255, 255, 0.035);
	color: rgba(223, 230, 233, 0.78);
	border-color: rgba(255, 255, 255, 0.06);
}

.dataset-tab:not(.active):hover {
	background-color: rgba(15, 118, 110, 0.1);
	color: var(--text-main);
	border-color: rgba(15, 118, 110, 0.25);
}

[data-theme="dark"] .dataset-tab:not(.active):hover {
	background-color: rgba(94, 234, 212, 0.15);
	border-color: rgba(94, 234, 212, 0.3);
}

.dataset-tab.active {
	background-color: var(--btn-analyze);
	border-color: transparent;
	font-weight: 600;
	color: #fff;
	box-shadow: 0 -2px 8px rgba(15, 118, 110, 0.36),
		-2px 0 8px rgba(15, 118, 110, 0.2),
		2px 0 8px rgba(15, 118, 110, 0.2);
	clip-path: inset(-8px -10px 0 -10px);
}

[data-theme="dark"] .dataset-tab.active {
	color: #1a1a1a;
	box-shadow: 0 -2px 9px rgba(94, 234, 212, 0.42),
		-2px 0 9px rgba(94, 234, 212, 0.24),
		2px 0 9px rgba(94, 234, 212, 0.24);
}

.dataset-tab.active:hover {
	background-color: var(--btn-analyze-hover);
}

[data-theme="dark"] .dataset-tab.active:hover {
	background-color: var(--btn-analyze-hover);
}

.dataset-tab .tab-label {
	display: inline-block;
	min-width: 0;
	max-width: 132px;
	overflow: hidden;
	text-overflow: ellipsis;
	margin-right: 5px;
	white-space: nowrap;
}

.dataset-tab-name-input {
	width: 132px;
	max-width: 140px;
	min-width: 84px;
	padding: 5px 8px;
	border: 1px solid var(--input-border);
	border-radius: 8px;
	background: var(--card-bg);
	color: var(--text-main);
	font: inherit;
	line-height: 1.2;
}

.dataset-tab-name-input:focus {
	outline: 2px solid var(--brand-primary);
	outline-offset: 1px;
}

.dataset-tab.active .dataset-tab-name-input {
	background: rgba(255, 255, 255, 0.92);
	color: #1a1a1a;
	border-color: rgba(255, 255, 255, 0.92);
}

[data-theme="dark"] .dataset-tab.active .dataset-tab-name-input {
	background: rgba(26, 26, 26, 0.94);
	color: #f4f6fb;
	border-color: rgba(244, 246, 251, 0.7);
}

.dataset-tab .tab-close {
	font-weight: bold;
	color: var(--text-secondary);
	cursor: pointer;
	padding-left: 4px;
	user-select: none;
	transition: color 0.15s ease;
}

.dataset-tab.active .tab-close {
	color: rgba(255, 255, 255, 0.7);
}

[data-theme="dark"] .dataset-tab.active .tab-close {
	color: rgba(255, 255, 255, 0.7);
}

.dataset-tab .tab-close:hover {
	color: var(--btn-danger);
}

.dataset-tab.active .tab-close:hover {
	color: #fecaca;
}

/* Add Dataset (+) */
.add-dataset-btn {
	-webkit-appearance: none;
	appearance: none;
	background-image: none;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	min-width: 0;
	padding: 9px 16px;
	margin-left: 0;
	line-height: 1;
	background-color: var(--tab-bg);
	color: var(--text-secondary);
	border: 1px solid transparent;
	border-bottom: none;
	border-top-left-radius: 10px;
	border-top-right-radius: 10px;
	border-bottom-left-radius: 0;
	border-bottom-right-radius: 0;
	cursor: pointer;
	transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
	font-size: 1.2rem;
	font-weight: 700;
	flex: none;
	width: auto;
}

.add-dataset-btn:hover {
	background-color: rgba(15, 118, 110, 0.1);
	color: var(--text-main);
	border-color: rgba(15, 118, 110, 0.25);
}

[data-theme="dark"] .add-dataset-btn:hover {
	background-color: rgba(94, 234, 212, 0.15);
	border-color: rgba(94, 234, 212, 0.3);
}

/* Layout Sections */
.container {
	display: flex;
	gap: 20px;
	flex-wrap: wrap;
	padding: 0 20px 40px;
}

.input-section,
.graph-section {
	background-color: var(--card-bg);
	border-radius: 16px;
	box-shadow: var(--card-shadow);
	padding: 24px;
	box-sizing: border-box;
	height: 80vh;
	height: 80svh;
	height: 80dvh;
	overflow-y: auto;
	border: 1px solid var(--card-border);
}

.input-section {
	flex: 1 1 420px;
	max-width: 420px;
}

.graph-section {
	flex: 2 1 600px;
	min-width: 320px;
}

/* Section Headings */
.input-section h2,
.graph-section h2,
.global-uncertainty h2,
.advanced-fit-section h2,
.section-toggle {
	font-family: var(--font-display);
	font-size: 1.1rem;
	color: var(--text-main);
	padding: 8px 12px;
	border-radius: 10px;
	margin: 0 0 16px;
	background: var(--muted-bg);
	text-align: left;
}

.section-toggle {
	border: 1px solid var(--border-color);
	width: 100%;
	cursor: pointer;
	display: flex;
	align-items: center;
	justify-content: space-between;
	transition: background-color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.section-toggle:hover {
	background-color: rgba(15, 118, 110, 0.08);
	border-color: rgba(15, 118, 110, 0.25);
}

[data-theme="dark"] .section-toggle:hover {
	background-color: rgba(94, 234, 212, 0.1);
	border-color: rgba(94, 234, 212, 0.2);
}

.section-toggle[aria-expanded="true"] {
	background-color: rgba(15, 118, 110, 0.1);
	border-color: rgba(15, 118, 110, 0.25);
	border-bottom-left-radius: 0;
	border-bottom-right-radius: 0;
	border-bottom: none;
	margin-bottom: 0;
}

[data-theme="dark"] .section-toggle[aria-expanded="true"] {
	background-color: rgba(94, 234, 212, 0.12);
	border-color: rgba(94, 234, 212, 0.25);
}

.section-toggle::after {
	content: "▾";
	color: var(--btn-analyze);
	font-size: 0.9rem;
	display: inline-block;
	line-height: 1;
	transform: rotate(0deg);
	transform-origin: center;
	transition: transform 0.2s ease, color 0.2s ease;
}

.section-toggle[aria-expanded="true"]::after {
	content: "▾";
	transform: rotate(180deg);
}

.section-toggle-popup {
	margin-bottom: 0;
}

.section-toggle-popup::after {
	content: none;
}

.collapsible-content {
	display: none;
}

.collapsible-content.is-open {
	display: block;
	border: 1px solid rgba(15, 118, 110, 0.25);
	border-top: none;
	border-radius: 0 0 10px 10px;
	background: var(--muted-bg);
	padding: 14px;
}

[data-theme="dark"] .collapsible-content.is-open {
	border-color: rgba(94, 234, 212, 0.25);
}

/* Data Table */
.table-container {
	max-height: 300px;
	overflow-y: auto;
	border: 1px solid var(--border-color);
	border-radius: 10px;
	background: var(--card-bg);
}

.data-table {
	width: 100%;
	margin-bottom: 20px;
	border-collapse: collapse;
	table-layout: auto;
}

.data-table th,
.data-table td {
	text-align: center;
	padding: 10px;
	border: 1px solid var(--border-color);
	vertical-align: middle;
	white-space: normal;
}

.data-table th input {
	width: 90%;
	border: none;
	outline: none;
	font-size: 0.95rem;
	text-align: center;
	background-color: transparent;
	padding: 4px;
	color: var(--text-main);
}

.data-table th input:focus {
	border-bottom: 2px solid var(--brand-primary);
}

.data-table .latex-display {
	margin-top: 4px;
	background-color: #f6f4ff;
	border: 1px solid rgba(194, 65, 12, 0.25);
	padding: 6px 8px;
	border-radius: 8px;
	font-size: 0.85rem;
	color: var(--text-secondary);
	max-width: 100%;
	word-wrap: break-word;
}

[data-theme="dark"] .data-table .latex-display {
	background-color: #252b34;
	border-color: rgba(251, 146, 60, 0.3);
}

.data-table td input {
	width: 100%;
	border: none;
	outline: none;
	font-size: 0.9rem;
	text-align: center;
	background-color: transparent;
	padding: 4px;
	color: var(--text-main);
}

.data-table td input:focus {
	outline: 2px solid var(--input-focus);
	border-radius: 4px;
}

.data-table td input.invalid-input {
	background-color: rgba(255, 107, 107, 0.15);
	outline: 2px solid #ff6b6b;
	border-radius: 4px;
}

.data-table tbody tr:nth-child(odd) {
	background-color: #f9fafc;
}

.data-table tbody tr:nth-child(even) {
	background-color: #ffffff;
}

[data-theme="dark"] .data-table tbody tr:nth-child(odd) {
	background-color: #1b1f27;
}

[data-theme="dark"] .data-table tbody tr:nth-child(even) {
	background-color: #151920;
}

/* Buttons */
button {
	-webkit-appearance: none;
	-moz-appearance: none;
	appearance: none;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	padding: 10px 16px;
	color: #fff;
	border: none;
	border-radius: 10px;
	cursor: pointer;
	font-size: 0.9rem;
	font-family: inherit;
	line-height: 1.2;
	box-sizing: border-box;
	margin: 2px;
	flex: 1;
	transition: transform 0.2s ease, box-shadow 0.2s ease;
	box-shadow: 0 6px 16px rgba(0, 0, 0, 0.08);
}

button:hover {
	transform: translateY(-1px);
	box-shadow: 0 8px 20px rgba(0, 0, 0, 0.12);
}

/* Add Row - Sage green (Create action) */
.btn-add-row {
	background-color: var(--btn-create);
	color: #fff;
	font-weight: 600;
}

.btn-add-row:hover {
	background-color: var(--btn-create-hover);
}

[data-theme="dark"] .btn-add-row {
	color: #1a1a1a;
}

/* Clear Data - Coral (Destructive action) */
.btn-clear-all {
	background-color: var(--btn-danger);
	color: #fff;
	font-weight: 600;
}

.btn-clear-all:hover {
	background-color: var(--btn-danger-hover);
}

[data-theme="dark"] .btn-clear-all {
	color: #1a1a1a;
}

/* Copy x₁ - Sage green (Create action) */
.btn-copy-x {
	background-color: var(--btn-create);
	color: #fff;
	font-weight: 600;
}

.btn-copy-x:hover {
	background-color: var(--btn-create-hover);
}

[data-theme="dark"] .btn-copy-x {
	color: #1a1a1a;
}

/* Import CSV - Peach (Import action) */
.btn-import-csv {
	background-color: var(--btn-import);
	color: #fff;
	font-weight: 600;
}

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

[data-theme="dark"] .btn-import-csv {
	color: #1a1a1a;
}

/* Export CSV - Peach (Import-style action) */
.btn-export-csv {
	background-color: var(--btn-import);
	color: #fff;
	font-weight: 600;
}

.btn-export-csv:hover {
	background-color: var(--btn-import-hover);
}

[data-theme="dark"] .btn-export-csv {
	color: #1a1a1a;
}

/* View Table - Teal (Utility action) */
.btn-export-md {
	background-color: var(--btn-utility);
	color: #fff;
	font-weight: 600;
}

.btn-export-md:hover {
	background-color: var(--btn-utility-hover);
}

[data-theme="dark"] .btn-export-md {
	color: #1a1a1a;
}

/* Fit Curve - Periwinkle (Analysis action) */
.fit-button {
	background-color: var(--btn-analyze);
	color: #fff;
	width: 100%;
	height: 40px;
	padding: 0;
	margin: 0;
	border-radius: 10px;
	font-weight: 600;
}

.fit-button:hover {
	background-color: var(--btn-analyze-hover);
}

[data-theme="dark"] .fit-button {
	color: #1a1a1a;
}

/* Clear Fit - Coral (Destructive action) */
.clear-fit-button {
	background-color: var(--btn-danger);
	color: #fff;
	width: 100%;
	height: 40px;
	padding: 0;
	margin: 0;
	border-radius: 10px;
	font-weight: 600;
}

.clear-fit-button:hover {
	background-color: var(--btn-danger-hover);
}

[data-theme="dark"] .clear-fit-button {
	color: #1a1a1a;
}

/* Button Containers */
.button-container {
	display: flex;
	flex-direction: column;
	gap: 8px;
	justify-content: center;
	align-items: center;
	margin: 16px 0;
}

.button-row {
	display: flex;
	gap: 8px;
	width: 100%;
}

.button-row-data-processing {
	margin-top: 12px;
}

/* Global Uncertainty */
.global-uncertainty {
	margin: 20px 0;
	padding: 0;
	border-radius: 0;
	background: transparent;
	border: none;
}

/* Uncertainty Cards */
.uncertainty-card {
	background: var(--card-bg);
	border: 1px solid var(--border-color);
	border-radius: 12px;
	padding: 14px;
	margin-bottom: 12px;
}

.uncertainty-card:last-child {
	margin-bottom: 0;
}

.uncertainty-card-toggle {
	display: flex;
	flex-direction: row;
	align-items: center;
	justify-content: flex-start;
	gap: 10px;
	margin-bottom: 12px;
	padding-bottom: 10px;
	border-bottom: 1px solid var(--border-color);
}

.uncertainty-toggle-group {
	display: flex;
	align-items: center;
	gap: 10px;
}

.uncertainty-label {
	font-weight: 600;
	font-size: 0.95rem;
	color: var(--text-main);
}

.uncertainty-type-select {
	width: auto;
	min-width: 0;
	padding: 8px 28px 8px 10px;
	font-size: 0.85rem;
	border: 1px solid var(--input-border);
	border-radius: 10px;
	background: var(--card-bg);
	color: var(--text-main);
	flex-shrink: 0;
	margin-bottom: 0;
}

.uncertainty-card-body {
	display: flex;
	align-items: center;
	gap: 8px;
}

.uncertainty-card-body input[type="text"] {
	flex: 1;
	min-width: 60px;
	padding: 10px 12px;
	font-size: 0.9rem;
	border: 1px solid var(--input-border);
	border-radius: 10px;
	background-color: var(--card-bg);
	color: var(--text-main);
}

.uncertainty-card-body input[type="text"]:focus {
	border-color: var(--brand-primary);
	outline: none;
	box-shadow: 0 0 0 3px rgba(194, 65, 12, 0.2);
}

/* Apply to All - Teal (Utility action) */
/* Apply to All - Yellow (Special action) */
.uncertainty-card-body button {
	background-color: var(--btn-apply);
	color: var(--btn-apply-text);
	padding: 10px 12px;
	border-radius: 10px;
	font-size: 0.85rem;
	font-weight: 600;
	white-space: nowrap;
	flex: 0 0 auto;
}

.uncertainty-card-body button:hover {
	background-color: var(--btn-apply-hover);
}

[data-theme="dark"] .uncertainty-card-body button {
	color: var(--btn-apply-text);
}

/* Advanced Fit Section */
.advanced-fit-section {
	margin-top: 20px;
	padding: 16px;
	border-radius: 12px;
	background: var(--muted-bg);
	border: 1px solid var(--border-color);
}

.advanced-fit-section select,
.advanced-fit-section .fit-method-select,
select {
	-webkit-appearance: none;
	-moz-appearance: none;
	appearance: none;
	min-width: 150px;
	max-width: 300px;
	padding: 8px 12px;
	font-size: 0.9rem;
	font-family: inherit;
	line-height: 1.2;
	box-sizing: border-box;
	border: 1px solid var(--input-border);
	border-radius: 10px;
	margin-bottom: 15px;
	background: var(--card-bg);
	color: var(--text-main);
	background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23636e72' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
	background-repeat: no-repeat;
	background-position: right 10px center;
	padding-right: 30px;
}

.advanced-fit-item {
	display: flex;
	align-items: center;
	gap: 10px;
	margin-bottom: 10px;
	flex-wrap: wrap;
}

.advanced-fit-top-row {
	display: flex;
	align-items: center;
	gap: 10px;
	margin-bottom: 10px;
	flex-wrap: wrap;
}

.advanced-fit-top-row .advanced-fit-item {
	margin-bottom: 0;
}

.advanced-fit-reset-btn {
	margin-left: auto;
	border: 1px solid var(--input-border);
	background: var(--card-bg);
	color: var(--text-secondary);
	border-radius: 999px;
	padding: 6px 12px;
	font-size: 0.78rem;
	font-weight: 600;
	line-height: 1.15;
	cursor: pointer;
	transition: border-color 0.18s ease, background-color 0.18s ease, color 0.18s ease;
}

.advanced-fit-reset-btn:hover {
	border-color: var(--brand-primary);
	background: var(--muted-bg);
	color: var(--text-main);
}

.advanced-fit-reset-btn:focus-visible {
	outline: 2px solid var(--brand-primary);
	outline-offset: 2px;
}

.advanced-fit-item label {
	white-space: nowrap;
	color: var(--text-secondary);
}

.advanced-fit-item input {
	max-width: 200px;
	padding: 8px 10px;
	border: 1px solid var(--input-border);
	border-radius: 10px;
	background-color: var(--card-bg);
	color: var(--text-main);
}

.advanced-fit-item input:focus {
	border-color: var(--brand-primary);
	outline: none;
	box-shadow: 0 0 0 3px rgba(194, 65, 12, 0.2);
}

/* Parameter Section */
.parameter-section {
	display: none;
}

.parameter-section.active {
	display: block;
}

/* General Equation */
.general-equation {
	margin: 20px 0 10px;
	background-color: #f6f4ff;
	padding: 12px;
	border: 1px solid rgba(194, 65, 12, 0.2);
	border-radius: 12px;
	font-size: 1rem;
	text-align: center;
	color: var(--text-main);
}

[data-theme="dark"] .general-equation {
	background-color: #252b34;
	border-color: rgba(251, 146, 60, 0.3);
}

/* Tabs - Segmented control style */
.tabs {
	display: flex;
	border-radius: 12px;
	margin-bottom: 4px;
	background: var(--tab-bg);
	padding: 4px;
	gap: 4px;
}

.tabs button {
	background-color: transparent;
	border: none;
	cursor: pointer;
	padding: 10px 12px;
	transition: background-color 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
	font-size: 0.9rem;
	font-weight: 500;
	border-radius: 10px;
	color: var(--text-secondary);
	flex: 1 1 0;
	min-width: 0;
	box-shadow: none;
}

.tabs button:hover {
	background-color: rgba(15, 118, 110, 0.12);
	color: var(--text-main);
}

.tabs button.active {
	background-color: var(--btn-analyze);
	color: #fff;
	box-shadow: 0 2px 8px rgba(15, 118, 110, 0.25);
}

[data-theme="dark"] .tabs button:hover {
	background-color: rgba(94, 234, 212, 0.15);
}

[data-theme="dark"] .tabs button.active {
	background-color: var(--btn-analyze);
	color: #1a1a1a;
	box-shadow: 0 2px 8px rgba(94, 234, 212, 0.3);
}

.tab-content {
	display: none;
	padding: 8px 1px 15px;
}

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

.custom-fit-formula-panel {
	margin-top: 12px;
	background: var(--card-bg);
	border: 1px solid var(--border-color);
	border-radius: 10px;
	padding: 10px;
}

.custom-fit-formula-header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 8px;
	margin-bottom: 6px;
}

#custom-fit-formula-label {
	display: block;
	font-size: 0.86rem;
	font-weight: 600;
	margin: 0;
	color: var(--text-main);
}

#custom-fit-formula-help {
	flex: 0 0 auto;
	width: auto;
	margin: 0;
	padding: 4px 11px;
	border-radius: 999px;
	border: 1px solid var(--border-color);
	background: var(--muted-bg);
	color: var(--text-secondary);
	font-size: 0.78rem;
	font-weight: 600;
	line-height: 1;
	white-space: nowrap;
	box-shadow: none;
	transform: none;
}

#custom-fit-formula-help:hover {
	background: rgba(15, 118, 110, 0.08);
	border-color: rgba(15, 118, 110, 0.3);
	color: var(--btn-analyze);
	box-shadow: none;
	transform: none;
}

[data-theme="dark"] #custom-fit-formula-help {
	color: var(--text-main);
}

#custom-fit-formula-input {
	width: 100%;
	padding: 10px;
	border: 1px solid var(--input-border);
	border-radius: 10px;
	font-size: 0.9rem;
	background-color: var(--card-bg);
	color: var(--text-main);
}

#custom-fit-formula-input:focus {
	border-color: var(--brand-primary);
	outline: none;
	box-shadow: 0 0 0 3px rgba(194, 65, 12, 0.2);
}

.custom-fit-formula-note {
	margin: 6px 2px 14px;
	font-size: 0.75rem;
	color: var(--btn-danger);
	font-weight: 600;
}

.custom-fit-formula-note code {
	font-size: 0.8em;
	color: var(--btn-danger);
}

#custom-fit-formula-message {
	margin: 8px 0 0;
	padding: 8px 10px;
	border-radius: 8px;
	font-size: 0.82rem;
	border: 1px solid transparent;
}

#custom-fit-formula-message.is-error {
	background: rgba(231, 76, 60, 0.12);
	border-color: rgba(231, 76, 60, 0.35);
	color: #8e2a2a;
}

#custom-fit-formula-message.is-warning {
	background: rgba(241, 196, 15, 0.18);
	border-color: rgba(241, 196, 15, 0.4);
	color: #7a5f00;
}

#custom-fit-formula-message.is-success {
	background: rgba(46, 172, 113, 0.15);
	border-color: rgba(46, 172, 113, 0.35);
	color: #176d45;
}

[data-theme="dark"] #custom-fit-formula-message.is-error {
	background: rgba(231, 76, 60, 0.24);
	border-color: rgba(231, 76, 60, 0.42);
	color: #ffd3cc;
}

[data-theme="dark"] #custom-fit-formula-message.is-warning {
	background: rgba(241, 196, 15, 0.22);
	border-color: rgba(241, 196, 15, 0.45);
	color: #ffe9a8;
}

[data-theme="dark"] #custom-fit-formula-message.is-success {
	color: #86efac;
}

.custom-fit-parameters-panel {
	margin-top: 0;
	padding: 0;
	background: transparent;
	border: 0;
	border-radius: 0;
}

.custom-fit-parameters-empty {
	margin: 0 0 8px;
	font-size: 0.86rem;
	color: var(--text-secondary);
}

#custom-fit-parameters-list {
	display: flex;
	flex-direction: column;
	gap: 8px;
}

.custom-fit-parameter-row {
	display: flex;
	align-items: center;
	gap: 10px;
	flex-wrap: wrap;
}

.custom-fit-parameter-row label {
	min-width: 0;
}

.custom-fit-parameter-row input {
	max-width: 200px;
}

.custom-fit-parameter-row input:focus {
	border-color: var(--brand-primary);
	outline: none;
	box-shadow: 0 0 0 3px rgba(194, 65, 12, 0.2);
}

/* Results */
.result {
	margin-bottom: 20px;
	background-color: #f9fafc;
	padding: 15px;
	border-radius: 12px;
	border: 1px solid var(--border-color);
}

[data-theme="dark"] .result {
	background-color: #1b1f27;
}

.result h3 {
	margin-top: 0;
	margin-bottom: 12px;
	font-family: var(--font-display);
}

.result p {
	margin: 10px 0;
	font-size: 0.95rem;
	overflow-x: auto;
	white-space: nowrap;
	color: var(--text-secondary);
}

#fit-equation {
	position: relative;
	margin: 2px 0 12px;
	padding: 8px 10px;
	line-height: 1.5;
	text-align: center;
	font-size: 1.08rem;
	overflow-x: auto;
	overflow-y: visible;
}

#r-squared-container {
	margin: 0;
	padding-top: 2px;
}

.fit-equation-copy-target {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	max-width: 100%;
	position: relative;
	cursor: pointer;
	border-radius: 8px;
	margin: 2px 0;
	padding: 4px 10px;
	transition: box-shadow 0.15s ease;
	outline: none;
}

.fit-equation-copy-target:hover,
.fit-equation-copy-target.fit-copy-actions-open,
.fit-equation-copy-target:focus-visible {
	box-shadow: 0 0 0 2px var(--brand-accent);
}

.fit-equation-copy-target::after {
	content: "Copy equation";
	position: absolute;
	bottom: calc(100% + 8px);
	left: 50%;
	transform: translateX(-50%);
	background: var(--text-main);
	color: var(--card-bg);
	padding: 4px 10px;
	border-radius: 999px;
	font-size: 11px;
	font-family: var(--font-body);
	white-space: nowrap;
	opacity: 0;
	pointer-events: none;
	transition: opacity 0.15s ease;
	z-index: 120;
}

.fit-equation-copy-target:hover::after,
.fit-equation-copy-target:focus-visible::after {
	opacity: 1;
}

.fit-equation-copy-target.fit-copy-actions-open::after {
	opacity: 0;
}

#fit-equation:has(.fit-equation-copy-target.copied),
#fit-equation:has(.fit-equation-copy-target.copy-failed) {
	overflow: visible;
}

.fit-equation-copy-target.copied {
	box-shadow: 0 0 0 2px #22c55e !important;
}

.fit-equation-copy-target.copied::after {
	content: "Copied!" !important;
	background: #22c55e !important;
	color: #ffffff !important;
	opacity: 1 !important;
}

.fit-equation-copy-target.copy-failed {
	box-shadow: 0 0 0 2px #ef4444 !important;
}

.fit-equation-copy-target.copy-failed::after {
	content: "Copy failed" !important;
	background: #ef4444 !important;
	color: #ffffff !important;
	opacity: 1 !important;
}

.fit-equation-copy-actions {
	position: absolute;
	z-index: 2100;
	background: var(--card-bg);
	border: 1px solid var(--border-color);
	border-radius: 10px;
	padding: 6px;
	box-shadow: var(--soft-shadow);
	min-width: 0;
	max-width: calc(100vw - 16px);
}

.fit-equation-copy-actions[hidden] {
	display: none;
}

.fit-equation-copy-actions.visible {
	display: block;
}

.fit-equation-copy-actions-buttons {
	display: flex;
	flex-wrap: nowrap;
	gap: 6px;
	justify-content: center;
}

.fit-equation-copy-action-btn {
	flex: 0 0 auto;
	border: none;
	border-radius: 999px;
	padding: 6px 11px;
	font-weight: 600;
	cursor: pointer;
	font-size: 0.78rem;
	line-height: 1.1;
	min-height: 32px;
	white-space: nowrap;
}

.fit-equation-copy-action-btn-image {
	background-color: var(--btn-analyze);
	color: #ffffff;
}

.fit-equation-copy-action-btn-image:hover {
	background-color: var(--btn-analyze-hover);
}

.fit-equation-copy-action-btn-latex {
	background-color: var(--btn-export);
	color: #ffffff;
}

.fit-equation-copy-action-btn-latex:hover {
	background-color: var(--btn-export-hover);
}

[data-theme="dark"] .fit-equation-copy-action-btn-image,
[data-theme="dark"] .fit-equation-copy-action-btn-latex {
	color: #1a1a1a;
}

.fit-equation-copy-action-btn:focus-visible {
	outline: 2px solid var(--brand-primary);
	outline-offset: 2px;
}

@media (hover: none) {
	.fit-equation-copy-target::after {
		display: none;
	}
}

/* Plot */
#plot {
	width: 100%;
	height: 500px;
	margin-top: 20px;
}

/* Plotly toolbar spacing */
#plot .modebar,
#popup-plot .modebar {
	padding: 4px 6px !important;
}

#plot .modebar-group,
#popup-plot .modebar-group {
	display: flex !important;
	align-items: center;
	gap: 1px;
	margin: 0 !important;
	padding: 0 !important;
}

#plot .modebar-btn,
#popup-plot .modebar-btn {
	width: 30px !important;
	height: 30px !important;
	padding: 4px !important;
	margin: 0 !important;
	display: inline-flex !important;
	align-items: center;
	justify-content: center;
	border-radius: 8px;
}

.plot-all-container {
	display: flex;
	justify-content: center;
	margin-top: 10px;
}

/* Plot ALL Datasets - Periwinkle (Analysis action) */
.plot-all-btn {
	padding: 12px 24px;
	background-color: var(--btn-analyze);
	color: #fff;
	border: none;
	border-radius: 12px;
	cursor: pointer;
	font-size: 0.95rem;
	font-weight: 600;
	transition: background-color 0.2s ease, transform 0.2s ease;
}

.plot-all-btn:hover {
	background-color: var(--btn-analyze-hover);
	transform: translateY(-1px);
}

[data-theme="dark"] .plot-all-btn {
	color: #1a1a1a;
}

/* Responsive */
@media (max-width: 900px) {
	.container {
		flex-direction: column;
	}

	.input-section,
	.graph-section {
		max-width: 100%;
		flex: none;
		height: auto;
		min-height: 300px;
	}

	.banner-logo,
	.banner-buttons {
		width: auto;
	}

	.reminder {
		padding-right: 20px;
	}

	.latex-toggle-container {
		position: static;
		transform: none;
		justify-content: center;
		margin-top: 6px;
	}
}

/* Graph Title */
.graph-title-container {
	display: flex;
	align-items: center;
	margin-bottom: 10px;
	gap: 10px;
}

.graph-title-container label {
	font-size: 0.9rem;
	font-weight: 600;
	color: var(--text-secondary);
}

.graph-title-container input {
	flex: 1;
	padding: 10px;
	font-size: 0.9rem;
	border: 1px solid var(--input-border);
	border-radius: 10px;
	background-color: var(--card-bg);
	color: var(--text-main);
}

.graph-title-container input:focus {
	border-color: var(--brand-primary);
	outline: none;
	box-shadow: 0 0 0 3px rgba(194, 65, 12, 0.2);
}

/* Popup */
#popup-background {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: rgba(15, 16, 20, 0.5);
	z-index: 1000;
}

#popup-container {
	position: fixed;
	top: 2%;
	width: 100%;
	height: 100%;
	background: transparent;
	z-index: 1001;
	display: flex;
	justify-content: center;
	align-items: center;
	padding: 0;
}

#popup-content {
	background: var(--card-bg);
	padding: 24px;
	border-radius: 16px;
	box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
	width: 100%;
	max-width: 900px;
	max-height: 90vh;
	overflow: auto;
	position: relative;
	margin: 0 auto;
}

#popup-title {
	font-size: 1.1rem;
	font-weight: 600;
	margin-bottom: 6px;
	text-align: center;
	font-family: var(--font-display);
	color: var(--text-main);
}

#popup-plot {
	width: 100%;
	min-width: 0;
	min-height: 400px;
	margin-top: 10px;
}

/* Popup close - Red (Close/Dismiss action) */
#popup-close {
	position: absolute;
	top: 12px;
	right: 12px;
	background: var(--btn-danger);
	color: #fff;
	border: none;
	border-radius: 8px;
	padding: 6px 10px;
	cursor: pointer;
	z-index: 1100;
	font-weight: 600;
}

#popup-close:hover {
	background-color: var(--btn-danger-hover);
}

[data-theme="dark"] #popup-close {
	color: #1a1a1a;
}

/* Combined Plot Controls */
.combined-plot-controls {
	margin-top: 10px;
	padding: 16px;
	background-color: var(--muted-bg);
	border: 1px solid var(--border-color);
	display: flex;
	flex-direction: column;
	gap: 10px;
	border-radius: 12px;
}

.control-row-horizontal {
	display: flex;
	align-items: center;
	gap: 10px;
	flex-wrap: wrap;
}

.control-row-horizontal label {
	width: 120px;
	font-weight: 600;
	color: var(--text-secondary);
}

.control-row-horizontal input[type="text"] {
	padding: 8px 10px;
	font-size: 0.9rem;
	border: 1px solid var(--input-border);
	border-radius: 10px;
	flex-grow: 1;
	box-sizing: border-box;
	background-color: var(--card-bg);
	color: var(--text-main);
}

#popup-plot-container {
	margin-top: 15px;
}

/* Data Processing Popup */
#data-processing-background {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: rgba(15, 16, 20, 0.5);
	z-index: 2050;
}

#data-processing-container {
	position: fixed;
	top: 2%;
	width: 100%;
	height: 100%;
	background: transparent;
	z-index: 2051;
	display: flex;
	justify-content: center;
	align-items: center;
	padding: 0;
}

#data-processing-content {
	background: var(--card-bg);
	padding: 22px;
	border-radius: 16px;
	box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
	width: 100%;
	max-width: 860px;
	max-height: 90vh;
	overflow: auto;
	position: relative;
	margin: 0 auto;
}

#data-processing-title {
	font-size: 1.1rem;
	font-weight: 600;
	margin-bottom: 8px;
	text-align: center;
	font-family: var(--font-display);
	color: var(--text-main);
}

#data-processing-subtitle {
	margin: 0 0 16px;
	font-size: 0.88rem;
	color: var(--text-secondary);
	text-align: center;
}

#data-processing-close {
	position: absolute;
	top: 12px;
	right: 12px;
	background: var(--btn-danger);
	color: #fff;
	border: none;
	border-radius: 8px;
	padding: 6px 10px;
	cursor: pointer;
	z-index: 2100;
	font-weight: 600;
	min-width: 72px;
}

#data-processing-close:hover {
	background-color: var(--btn-danger-hover);
}

[data-theme="dark"] #data-processing-close {
	color: #1a1a1a;
}

.data-processing-section {
	background: var(--muted-bg);
	border: 1px solid var(--border-color);
	border-radius: 12px;
	padding: 12px;
	margin-bottom: 12px;
}

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

.data-processing-heading {
	font-family: var(--font-display);
	font-size: 0.98rem;
	margin-bottom: 10px;
}

#data-processing-source-empty {
	margin: 0;
	color: var(--text-secondary);
	font-size: 0.9rem;
}

#data-processing-source-table-wrap {
	max-height: 290px;
	overflow: auto;
}

#data-processing-source-table {
	width: max-content;
	min-width: 100%;
	border-collapse: collapse;
	background: var(--card-bg);
	border: 1px solid var(--border-color);
	border-radius: 10px;
	overflow: hidden;
}

#data-processing-source-table th,
#data-processing-source-table td {
	padding: 8px 10px;
	text-align: center;
	border: 1px solid var(--border-color);
	font-size: 0.88rem;
	color: var(--text-main);
	min-width: 90px;
	white-space: nowrap;
}

#data-processing-source-table th {
	font-weight: 600;
	background: var(--card-bg);
	position: sticky;
	top: 0;
	z-index: 1;
}

.data-processing-process-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
}

.data-processing-process-actions button {
	background: var(--btn-utility);
	color: #fff;
	font-weight: 600;
}

.data-processing-process-actions button:hover {
	background: var(--btn-utility-hover);
}

[data-theme="dark"] .data-processing-process-actions button {
	color: #1a1a1a;
}

#data-processing-formula-panel {
	margin-top: 10px;
	background: var(--card-bg);
	border: 1px solid var(--border-color);
	border-radius: 10px;
	padding: 10px;
}

.data-processing-formula-header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 8px;
	margin-bottom: 6px;
}

#data-processing-formula-label {
	display: block;
	font-size: 0.86rem;
	font-weight: 600;
	margin: 0;
	color: var(--text-main);
}

#data-processing-formula-help {
	flex: 0 0 auto;
	width: auto;
	margin: 0;
	padding: 4px 11px;
	border-radius: 999px;
	border: 1px solid var(--border-color);
	background: var(--muted-bg);
	color: var(--text-secondary);
	font-size: 0.78rem;
	font-weight: 600;
	line-height: 1;
	white-space: nowrap;
	box-shadow: none;
	transform: none;
}

#data-processing-formula-help:hover {
	background: rgba(15, 118, 110, 0.08);
	border-color: rgba(15, 118, 110, 0.3);
	color: var(--btn-analyze);
	box-shadow: none;
	transform: none;
}

[data-theme="dark"] #data-processing-formula-help {
	color: var(--text-main);
}

#data-processing-formula-input {
	width: 100%;
	padding: 10px;
	border: 1px solid var(--input-border);
	border-radius: 10px;
	font-size: 0.9rem;
	background-color: var(--card-bg);
	color: var(--text-main);
}

#data-processing-formula-input:focus {
	border-color: var(--brand-primary);
	outline: none;
	box-shadow: 0 0 0 3px rgba(194, 65, 12, 0.2);
}

#data-processing-formula-message {
	margin: 8px 0;
	padding: 8px 10px;
	border-radius: 8px;
	font-size: 0.82rem;
	border: 1px solid transparent;
}

#data-processing-formula-message.is-error {
	background: rgba(231, 76, 60, 0.12);
	border-color: rgba(231, 76, 60, 0.35);
	color: #8e2a2a;
}

#data-processing-formula-message.is-warning {
	background: rgba(241, 196, 15, 0.18);
	border-color: rgba(241, 196, 15, 0.4);
	color: #7a5f00;
}

[data-theme="dark"] #data-processing-formula-message.is-error {
	background: rgba(231, 76, 60, 0.24);
	border-color: rgba(231, 76, 60, 0.42);
	color: #ffd3cc;
}

[data-theme="dark"] #data-processing-formula-message.is-warning {
	background: rgba(241, 196, 15, 0.22);
	border-color: rgba(241, 196, 15, 0.45);
	color: #ffe9a8;
}

.data-processing-inline-actions {
	display: flex;
	gap: 8px;
	margin-top: 12px;
}

#data-processing-apply {
	background-color: var(--btn-analyze);
	color: #fff;
	font-weight: 600;
}

#data-processing-apply:hover {
	background-color: var(--btn-analyze-hover);
}

#data-processing-cancel {
	background-color: var(--btn-neutral);
	color: #fff;
	font-weight: 600;
}

#data-processing-cancel:hover {
	background-color: var(--btn-neutral-hover);
}

[data-theme="dark"] #data-processing-apply,
[data-theme="dark"] #data-processing-cancel {
	color: #1a1a1a;
}

#data-processing-derived-empty {
	margin: 0;
	color: var(--text-secondary);
	font-size: 0.9rem;
}

#data-processing-derived-list {
	display: flex;
	flex-direction: column;
	gap: 8px;
}

.data-processing-derived-item {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 10px;
	padding: 10px;
	background: var(--card-bg);
	border: 1px solid var(--border-color);
	border-radius: 10px;
}

.data-processing-derived-text {
	min-width: 0;
}

.data-processing-derived-name {
	font-size: 0.88rem;
	font-weight: 600;
	color: var(--text-main);
	word-break: break-word;
}

.data-processing-derived-formula,
.data-processing-derived-meta {
	font-size: 0.8rem;
	color: var(--text-secondary);
	word-break: break-word;
}

.data-processing-remove-btn {
	background: var(--btn-danger);
	color: #fff;
	font-weight: 600;
	flex: 0 0 auto;
	padding: 8px 12px;
}

.data-processing-remove-btn:hover {
	background: var(--btn-danger-hover);
}

[data-theme="dark"] .data-processing-remove-btn {
	color: #1a1a1a;
}

.data-processing-mapping-grid {
	display: grid;
	grid-template-columns: minmax(120px, 150px) minmax(0, 1fr);
	gap: 8px 12px;
	align-items: center;
}

.data-processing-mapping-grid label {
	color: var(--text-secondary);
	font-size: 0.88rem;
	font-weight: 600;
}

.data-processing-mapping-grid select {
	width: 100%;
	min-width: 0;
	margin-bottom: 0;
}

#data-processing-message {
	display: none;
	margin-top: 10px;
}

.data-processing-message-row {
	padding: 8px 10px;
	border-radius: 8px;
	font-size: 0.85rem;
	margin-bottom: 6px;
	border: 1px solid transparent;
}

.data-processing-message-row:last-child {
	margin-bottom: 0;
}

.data-processing-message-row.is-error {
	background: rgba(220, 95, 95, 0.14);
	border-color: rgba(220, 95, 95, 0.35);
	color: #a94442;
}

.data-processing-message-row.is-warning {
	background: rgba(241, 196, 15, 0.18);
	border-color: rgba(212, 172, 13, 0.35);
	color: #7a5a00;
}

.data-processing-message-row.is-success {
	background: rgba(46, 172, 113, 0.15);
	border-color: rgba(46, 172, 113, 0.35);
	color: #176d45;
}

[data-theme="dark"] .data-processing-message-row.is-error {
	color: #fca5a5;
}

[data-theme="dark"] .data-processing-message-row.is-warning {
	color: #fde68a;
}

[data-theme="dark"] .data-processing-message-row.is-success {
	color: #86efac;
}

.data-processing-footer-actions {
	display: flex;
	gap: 8px;
	margin-top: 12px;
}

#data-processing-copy {
	background: var(--btn-create);
	color: #fff;
	font-weight: 600;
}

#data-processing-copy:hover {
	background: var(--btn-create-hover);
}

#data-processing-reset {
	background: var(--btn-neutral);
	color: #fff;
	font-weight: 600;
}

#data-processing-reset:hover {
	background: var(--btn-neutral-hover);
}

[data-theme="dark"] #data-processing-copy,
[data-theme="dark"] #data-processing-reset {
	color: #1a1a1a;
}

@media (max-width: 900px) {
	#data-processing-content {
		max-width: 96%;
		padding: 18px 14px;
	}

	.data-processing-mapping-grid {
		grid-template-columns: 1fr;
		gap: 6px;
	}
}

@media (pointer: coarse) {
	#data-processing-close {
		min-height: 44px;
	}

	#data-processing-formula-input,
	.data-processing-mapping-grid select {
		min-height: 44px;
	}

	.data-processing-derived-item {
		flex-wrap: wrap;
	}
}

/* Footer */
footer {
	position: static;
	font-size: 0.9rem;
	text-align: center;
	padding: 12px;
	background: var(--bg-color);
	color: var(--text-secondary);
	margin: 0;
	width: 100%;
}

footer a {
	color: var(--brand-primary);
	text-decoration: none;
}

footer a:hover {
	text-decoration: underline;
}

footer a:visited {
	color: var(--brand-primary);
}

@media (pointer: coarse) {

	button,
	.banner-button,
	.action-button,
	.tab,
	select,
	input[type="button"],
	input[type="submit"],
	input[type="reset"],
	input[type="text"],
	input[type="number"] {
		min-height: 44px;
		touch-action: manipulation;
	}

	/* Ensure dataset tabs and add-dataset-btn have consistent height on touch devices */
	.dataset-tab,
	.add-dataset-btn {
		min-height: 44px;
		box-sizing: border-box;
	}

	/* Ensure Manual button text is vertically centered on touch devices */
	.banner-button {
		display: inline-flex;
		align-items: center;
		justify-content: center;
		line-height: 1;
	}

	.fit-equation-copy-target {
		padding: 6px 10px;
	}

	.fit-equation-copy-actions {
		padding: 8px;
		width: min(320px, calc(100vw - 16px));
	}

	.fit-equation-copy-action-btn {
		min-height: 38px;
		font-size: 0.82rem;
		padding: 7px 12px;
	}
}

/* Export Table Popup */
#export-table-background {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: rgba(15, 16, 20, 0.5);
	z-index: 1000;
}

#export-table-container {
	position: fixed;
	top: 2%;
	width: 100%;
	height: 100%;
	background: transparent;
	z-index: 1001;
	display: flex;
	justify-content: center;
	align-items: center;
	padding: 0;
}

#export-table-content {
	background: var(--card-bg);
	padding: 24px;
	border-radius: 16px;
	box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
	width: 100%;
	max-width: 700px;
	max-height: 90vh;
	overflow: auto;
	position: relative;
	margin: 0 auto;
}

#export-table-title {
	font-size: 1.1rem;
	font-weight: 600;
	margin-bottom: 6px;
	text-align: center;
	font-family: var(--font-display);
	color: var(--text-main);
}

#export-table-hint {
	text-align: center;
	color: var(--text-secondary);
	font-size: 0.85rem;
	margin: 8px 0 16px;
}

/* Export table close - Red (Close/Dismiss action) */
#export-table-close {
	position: absolute;
	top: 12px;
	right: 12px;
	background: var(--btn-danger);
	color: #fff;
	border: none;
	border-radius: 8px;
	padding: 6px 10px;
	cursor: pointer;
	z-index: 1100;
	font-weight: 600;
}

#export-table-close:hover {
	background-color: var(--btn-danger-hover);
}

[data-theme="dark"] #export-table-close {
	color: #1a1a1a;
}

#export-table-rendered {
	overflow-x: auto;
	overflow-y: visible;
	margin-bottom: 16px;
	padding: 28px 8px 0;
}

#export-table-rendered table {
	width: calc(100% - 12px);
	margin: 0 auto;
	border-collapse: collapse;
	background: var(--card-bg);
	position: relative;
}

#export-table-rendered .export-table-copy-target {
	cursor: pointer;
	transition: outline-color 0.15s ease;
	outline: 2px solid transparent;
	outline-offset: -2px;
}

#export-table-rendered .export-table-copy-target::after {
	content: "Copy table";
	position: absolute;
	top: -24px;
	left: 50%;
	transform: translateX(-50%);
	background: var(--text-main);
	color: var(--card-bg);
	padding: 4px 10px;
	border-radius: 999px;
	font-size: 11px;
	font-family: var(--font-body);
	white-space: nowrap;
	opacity: 0;
	pointer-events: none;
	transition: opacity 0.15s ease;
	z-index: 100;
}

#export-table-rendered .export-table-copy-target:hover,
#export-table-rendered .export-table-copy-target.export-table-copy-actions-open,
#export-table-rendered .export-table-copy-target:focus-visible {
	outline-color: var(--brand-accent);
}

#export-table-rendered .export-table-copy-target:hover::after,
#export-table-rendered .export-table-copy-target:focus-visible::after {
	opacity: 1;
}

#export-table-rendered .export-table-copy-target.export-table-copy-actions-open::after {
	opacity: 0;
}

#export-table-rendered .export-table-copy-target.copied {
	outline-color: #22c55e !important;
}

#export-table-rendered .export-table-copy-target.copied::after {
	content: "Copied!" !important;
	background: #22c55e !important;
	opacity: 1 !important;
}

#export-table-rendered .export-table-copy-target.copy-failed {
	outline-color: #ef4444 !important;
}

#export-table-rendered .export-table-copy-target.copy-failed::after {
	content: "Copy failed" !important;
	background: #ef4444 !important;
	opacity: 1 !important;
}

@media (hover: none) {
	#export-table-rendered .export-table-copy-target::after {
		display: none;
	}
}

#export-table-rendered th,
#export-table-rendered td {
	border: 1px solid var(--border-color);
	padding: 10px 14px;
	text-align: center;
}

#export-table-rendered th {
	background: var(--muted-bg);
	font-weight: 600;
	color: var(--text-main);
}

#export-table-rendered td {
	color: var(--text-main);
}

#export-table-rendered tbody tr:nth-child(odd) {
	background-color: #f9fafc;
}

#export-table-rendered tbody tr:nth-child(even) {
	background-color: #ffffff;
}

[data-theme="dark"] #export-table-rendered tbody tr:nth-child(odd) {
	background-color: #1b1f27;
}

[data-theme="dark"] #export-table-rendered tbody tr:nth-child(even) {
	background-color: #151920;
}

#export-table-controls {
	display: flex;
	justify-content: center;
	gap: 10px;
}

/* Save .md - Lavender (Export action) */
#export-table-save-md {
	background-color: var(--btn-export);
	color: #fff;
	padding: 10px 20px;
	font-weight: 600;
}

#export-table-save-md:hover {
	background-color: var(--btn-export-hover);
}

[data-theme="dark"] #export-table-save-md {
	color: #1a1a1a;
}

/* Clear Data Confirmation Modal */
#clear-data-prompt-background {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: rgba(15, 16, 20, 0.5);
	z-index: 2000;
}

#clear-data-prompt-container {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	z-index: 2001;
	display: flex;
	justify-content: center;
	align-items: center;
}

#clear-data-prompt-content {
	background: var(--card-bg);
	padding: 24px;
	border-radius: 16px;
	box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
	width: 100%;
	max-width: 360px;
	text-align: center;
}

#clear-data-prompt-title {
	font-size: 1.1rem;
	font-weight: 600;
	margin-bottom: 12px;
	font-family: var(--font-display);
	color: var(--text-main);
}

#clear-data-prompt-message {
	font-size: 0.9rem;
	color: var(--text-secondary);
	margin-bottom: 16px;
	line-height: 1.4;
}

#clear-data-prompt-remember {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 6px;
	font-size: 0.85rem;
	color: var(--text-secondary);
	margin-bottom: 18px;
	cursor: pointer;
	user-select: none;
}

#clear-data-prompt-remember input[type="checkbox"] {
	accent-color: var(--brand-primary);
	width: 15px;
	height: 15px;
	cursor: pointer;
}

#clear-data-prompt-buttons {
	display: flex;
	justify-content: center;
	gap: 10px;
}

#clear-data-prompt-cancel {
	background-color: var(--btn-neutral);
	color: #fff;
	border: none;
	padding: 10px 20px;
	font-weight: 600;
}

#clear-data-prompt-cancel:hover {
	background-color: var(--btn-neutral-hover);
}

[data-theme="dark"] #clear-data-prompt-cancel {
	color: #1a1a1a;
}

#clear-data-prompt-confirm {
	background-color: var(--btn-danger);
	color: #fff;
	border: none;
	padding: 10px 20px;
	font-weight: 600;
}

#clear-data-prompt-confirm:hover {
	background-color: var(--btn-danger-hover);
}

[data-theme="dark"] #clear-data-prompt-confirm {
	color: #1a1a1a;
}

/* Filename Prompt Modal */
#filename-prompt-background {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	background: rgba(15, 16, 20, 0.5);
	z-index: 2000;
}

#filename-prompt-container {
	position: fixed;
	top: 0;
	left: 0;
	width: 100%;
	height: 100%;
	z-index: 2001;
	display: flex;
	justify-content: center;
	align-items: center;
}

#filename-prompt-content {
	background: var(--card-bg);
	padding: 24px;
	border-radius: 16px;
	box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
	width: 100%;
	max-width: 360px;
	text-align: center;
}

#filename-prompt-title {
	font-size: 1.1rem;
	font-weight: 600;
	margin-bottom: 16px;
	font-family: var(--font-display);
	color: var(--text-main);
}

#filename-prompt-input-row {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 0;
	margin-bottom: 20px;
	border: 2px solid var(--btn-analyze);
	border-radius: 12px;
	overflow: hidden;
	transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

#filename-prompt-input-row:focus-within {
	border-color: var(--brand-primary);
	box-shadow: 0 0 0 3px rgba(194, 65, 12, 0.2);
}

#filename-prompt-input {
	flex: 1;
	padding: 12px 14px;
	font-size: 0.95rem;
	border: none;
	background-color: var(--card-bg);
	color: var(--text-main);
	outline: none;
}

#filename-prompt-extension {
	padding: 12px 14px;
	font-size: 0.95rem;
	background-color: var(--muted-bg);
	border: none;
	border-left: 1px solid var(--border-color);
	color: var(--text-secondary);
	font-weight: 500;
}

#filename-prompt-buttons {
	display: flex;
	justify-content: center;
	gap: 10px;
}

/* Cancel - Slate (Neutral action) */
#filename-prompt-cancel {
	background-color: var(--btn-neutral);
	color: #fff;
	border: none;
	padding: 10px 20px;
	font-weight: 600;
}

#filename-prompt-cancel:hover {
	background-color: var(--btn-neutral-hover);
}

[data-theme="dark"] #filename-prompt-cancel {
	color: #1a1a1a;
}

/* Save - Lavender (Export action) */
#filename-prompt-save {
	background-color: var(--btn-export);
	color: #fff;
	padding: 10px 20px;
	font-weight: 600;
}

#filename-prompt-save:hover {
	background-color: var(--btn-export-hover);
}

[data-theme="dark"] #filename-prompt-save {
	color: #1a1a1a;
}

/* Toast Notification */
.toast-notification {
	position: fixed;
	bottom: 24px;
	left: 50%;
	transform: translateX(-50%) translateY(20px);
	background: var(--card-bg);
	color: var(--text-main);
	padding: 12px 24px;
	border-radius: 12px;
	box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
	font-size: 0.9rem;
	z-index: 3000;
	opacity: 0;
	transition: opacity 0.3s ease, transform 0.3s ease;
	pointer-events: none;
}

.toast-notification.toast-visible {
	opacity: 1;
	transform: translateX(-50%) translateY(0);
}