diff --git a/src/lib/components/ui/DetailItem.svelte b/src/lib/components/ui/DetailItem.svelte
index 7566e5fb..2876f8f8 100644
--- a/src/lib/components/ui/DetailItem.svelte
+++ b/src/lib/components/ui/DetailItem.svelte
@@ -14,15 +14,20 @@
 
 	let {
 		label,
+		sublabel,
 		value = $bindable(),
 		children,
 		editable = false,
 		type = 'text',
 		options,
 		placeholder,
-		element
+		element,
+		onchange,
+		width
 	}: {
 		label: string
+		/** Secondary label displayed below the main label */
+		sublabel?: string
 		value?: string | number | boolean | null | undefined
 		children?: Snippet
 		editable?: boolean
@@ -30,26 +35,47 @@
 		options?: SelectOption[]
 		placeholder?: string
 		element?: 'wind' | 'fire' | 'water' | 'earth' | 'dark' | 'light'
+		/** Callback for checkbox type when value changes */
+		onchange?: (checked: boolean) => void
+		/** Custom width for the input field (e.g., '320px') */
+		width?: string
 	} = $props()
 
-	// For checkbox type, convert value to boolean
-	let checkboxValue = $state(type === 'checkbox' ? Boolean(value) : false)
+	// For checkbox type, derive the checked state from value
+	// This ensures external changes to value are reflected in the checkbox
+	const checkboxValue = $derived(type === 'checkbox' ? Boolean(value) : false)
 
-	$effect(() => {
-		if (type === 'checkbox') {
-			value = checkboxValue as any
-		}
-	})
+	// Handle checkbox change and call onchange if provided
+	function handleCheckboxChange(checked: boolean) {
+		value = checked as any
+		onchange?.(checked)
+	}
 </script>
 
-<div class="detail-item" class:editable>
-	<span class="label">{label}</span>
+<div class="detail-item" class:editable class:hasChildren={!!children}>
+	<div class="label-container">
+		<span class="label">{label}</span>
+		{#if sublabel}
+			<span class="sublabel">{sublabel}</span>
+		{/if}
+	</div>
 	{#if editable}
-		<div class="edit-value">
+		<div class="edit-value" style:--custom-width={width}>
 			{#if type === 'select' && options}
-				<Select bind:value={value as string | number | undefined} {options} {placeholder} size="medium" contained />
+				<Select
+					bind:value={value as string | number | undefined}
+					{options}
+					{placeholder}
+					size="medium"
+					contained
+				/>
 			{:else if type === 'checkbox'}
-				<Checkbox bind:checked={checkboxValue} contained {element} />
+				<Checkbox
+					checked={checkboxValue}
+					onCheckedChange={handleCheckboxChange}
+					contained
+					{element}
+				/>
 			{:else if type === 'number'}
 				<Input
 					bind:value
@@ -60,11 +86,11 @@
 					alignRight={true}
 				/>
 			{:else}
-				<Input bind:value type="text" contained={true} {placeholder} alignRight={true} />
+				<Input bind:value type="text" contained={true} {placeholder} alignRight={false} />
 			{/if}
 		</div>
 	{:else if children}
-		<div class="value">
+		<div class="value" class:edit-value={editable}>
 			{@render children()}
 		</div>
 	{:else}
@@ -89,24 +115,37 @@
 		font-size: typography.$font-regular;
 		min-height: calc(spacing.$unit * 5);
 
-		&:hover:not(.editable) {
+		&:hover:not(.editable):not(.hasChildren) {
 			background: colors.$grey-80;
 		}
 
-		&.editable:hover,
-		&.editable:focus-within {
+		&.editable:focus-within,
+		&.hasChildren:focus-within {
 			background: var(--input-bg-hover);
 		}
 
-		&.editable {
+		&.editable,
+		&.hasChildren {
 			background: var(--input-bg);
 		}
 
+		.label-container {
+			display: flex;
+			flex-direction: column;
+			flex-shrink: 0;
+			margin-right: spacing.$unit-2x;
+			gap: spacing.$unit-fourth;
+		}
+
 		.label {
 			font-weight: typography.$medium;
 			color: colors.$grey-50;
-			flex-shrink: 0;
-			margin-right: spacing.$unit-2x;
+		}
+
+		.sublabel {
+			font-size: typography.$font-small;
+			color: colors.$grey-60;
+			font-weight: typography.$normal;
 		}
 
 		.value {
@@ -123,13 +162,12 @@
 
 			:global(.input),
 			:global(.select) {
-				min-width: 180px;
+				width: var(--custom-width, 240px);
 			}
 
 			:global(.input.number) {
-				min-width: 120px;
+				width: var(--custom-width, 120px);
 			}
 		}
-
 	}
 </style>
diff --git a/src/lib/components/ui/Input.svelte b/src/lib/components/ui/Input.svelte
index 37d55703..18617c3e 100644
--- a/src/lib/components/ui/Input.svelte
+++ b/src/lib/components/ui/Input.svelte
@@ -18,6 +18,10 @@
 		alignRight?: boolean
 		accessory?: boolean
 		no1password?: boolean
+		validationState?: 'idle' | 'validating' | 'valid' | 'invalid'
+		handleBlur?: () => void
+		handleFocus?: () => void
+		handleInput?: () => void
 	}
 
 	let {
@@ -34,7 +38,7 @@
 		fullHeight = false,
 		alignRight = false,
 		accessory = false,
-		value = $bindable(''),
+		value = $bindable(),
 		type = 'text',
 		placeholder,
 		disabled = false,
@@ -42,12 +46,27 @@
 		required = false,
 		class: className = '',
 		no1password = false,
+		validationState = 'idle',
+		handleBlur,
+		handleFocus,
+		handleInput,
 		...restProps
 	}: Props = $props()
 
+	// Determine the validation icon to show
+	const validationIcon = $derived(
+		validationState === 'validating'
+			? 'loader-2'
+			: validationState === 'valid'
+				? 'check'
+				: validationState === 'invalid'
+					? 'close'
+					: null
+	)
+
 	const showCounter = $derived(counter !== undefined || maxLength !== undefined)
-	const currentCount = $derived(String(value).length)
-	const hasWrapper = $derived(accessory || leftIcon || rightIcon || showCounter)
+	const currentCount = $derived(String(value ?? '').length)
+	const hasWrapper = $derived(accessory || leftIcon || rightIcon || showCounter || validationIcon)
 
 	const fieldsetClasses = $derived(
 		['fieldset', hidden && 'hidden', fullWidth && 'full', className].filter(Boolean).join(' ')
@@ -68,6 +87,12 @@
 			.filter(Boolean)
 			.join(' ')
 	)
+
+	// Debug: log what's in restProps
+	$effect(() => {
+		console.log('[Input] restProps keys:', Object.keys(restProps))
+		console.log('[Input] hasWrapper:', hasWrapper, 'validationIcon:', validationIcon)
+	})
 </script>
 
 {#if label || error}
@@ -98,6 +123,9 @@
 					{required}
 					maxlength={maxLength}
 					data-1p-ignore={no1password}
+					onblur={handleBlur}
+					onfocus={handleFocus}
+					oninput={handleInput}
 					{...restProps}
 				/>
 
@@ -107,6 +135,12 @@
 					</span>
 				{/if}
 
+				{#if validationIcon}
+					<span class="validationIcon {validationState}">
+						<Icon name={validationIcon} size={16} />
+					</span>
+				{/if}
+
 				{#if showCounter}
 					<span class="counter">
 						{currentCount}{maxLength ? `/${maxLength}` : ''}
@@ -124,6 +158,9 @@
 				{required}
 				maxlength={maxLength}
 				data-1p-ignore={no1password}
+				onblur={handleBlur}
+				onfocus={handleFocus}
+				oninput={handleInput}
 				{...restProps}
 			/>
 		{/if}
@@ -149,6 +186,9 @@
 			{required}
 			maxlength={maxLength}
 			data-1p-ignore={no1password}
+			onblur={handleBlur}
+			onfocus={handleFocus}
+			oninput={handleInput}
 			{...restProps}
 		/>
 
@@ -158,6 +198,12 @@
 			</span>
 		{/if}
 
+		{#if validationIcon}
+			<span class="validationIcon {validationState}">
+				<Icon name={validationIcon} size={16} />
+			</span>
+		{/if}
+
 		{#if showCounter}
 			<span class="counter">
 				{currentCount}{maxLength ? `/${maxLength}` : ''}
@@ -175,6 +221,9 @@
 		{required}
 		maxlength={maxLength}
 		data-1p-ignore={no1password}
+		onblur={handleBlur}
+		onfocus={handleFocus}
+		oninput={handleInput}
 		{...restProps}
 	/>
 {/if}
@@ -312,6 +361,34 @@
 				right: $unit-2x;
 			}
 
+			.validationIcon {
+				position: absolute;
+				right: $unit-2x;
+				display: flex;
+				align-items: center;
+				pointer-events: none;
+
+				:global(svg) {
+					fill: currentColor;
+				}
+
+				&.valid {
+					color: $wind-text-20;
+				}
+
+				&.invalid {
+					color: $error;
+				}
+
+				&.validating {
+					color: var(--text-tertiary);
+
+					:global(svg) {
+						animation: spin 1s linear infinite;
+					}
+				}
+			}
+
 			&:has(.iconLeft) input {
 				padding-left: $unit-5x;
 			}
@@ -320,6 +397,10 @@
 				padding-right: $unit-5x;
 			}
 
+			&:has(.validationIcon) input {
+				padding-right: $unit-5x;
+			}
+
 			&:has(.counter) input {
 				padding-right: $unit-8x;
 			}
@@ -479,4 +560,13 @@
 		color: var(--text-tertiary);
 		opacity: 1;
 	}
+
+	@keyframes spin {
+		from {
+			transform: rotate(0deg);
+		}
+		to {
+			transform: rotate(360deg);
+		}
+	}
 </style>
diff --git a/src/lib/components/ui/ValidatedInput.svelte b/src/lib/components/ui/ValidatedInput.svelte
new file mode 100644
index 00000000..33d974f0
--- /dev/null
+++ b/src/lib/components/ui/ValidatedInput.svelte
@@ -0,0 +1,146 @@
+<svelte:options runes={true} />
+
+<script lang="ts">
+	import { Tooltip } from 'bits-ui'
+	import Input from './Input.svelte'
+
+	interface Props {
+		value: string
+		placeholder?: string
+		onValidate: (value: string) => Promise<{ valid: boolean; message: string }>
+		minLength?: number
+		contained?: boolean
+		alignRight?: boolean
+	}
+
+	let {
+		value = $bindable(''),
+		placeholder,
+		onValidate,
+		minLength = 0,
+		contained = false,
+		alignRight = false
+	}: Props = $props()
+
+	let validationState = $state<'idle' | 'validating' | 'valid' | 'invalid'>('idle')
+	let validationMessage = $state('')
+	let tooltipOpen = $state(false)
+	let tooltipTimeout: ReturnType<typeof setTimeout> | null = null
+
+	async function handleBlur() {
+		console.log('[ValidatedInput] handleBlur called, value:', value, 'minLength:', minLength)
+
+		// Only validate if value meets minimum length
+		if (value.length < minLength) {
+			console.log('[ValidatedInput] Value too short, skipping validation')
+			validationState = 'idle'
+			validationMessage = ''
+			return
+		}
+
+		console.log('[ValidatedInput] Starting validation...')
+		validationState = 'validating'
+		hideTooltip()
+
+		try {
+			console.log('[ValidatedInput] Calling onValidate...')
+			const result = await onValidate(value)
+			console.log('[ValidatedInput] Validation result:', result)
+			validationState = result.valid ? 'valid' : 'invalid'
+			validationMessage = result.message
+			console.log('[ValidatedInput] State updated:', { validationState, validationMessage })
+			showTooltip()
+		} catch (error) {
+			console.error('[ValidatedInput] Validation error:', error)
+			validationState = 'invalid'
+			validationMessage = 'Validation failed'
+			showTooltip()
+		}
+	}
+
+	function handleFocus() {
+		// Hide tooltip when focusing back into input
+		hideTooltip()
+	}
+
+	function handleInput() {
+		// Reset validation state when user types
+		if (validationState !== 'idle') {
+			validationState = 'idle'
+			validationMessage = ''
+			hideTooltip()
+		}
+	}
+
+	function showTooltip() {
+		tooltipOpen = true
+		// Auto-dismiss after 3 seconds
+		if (tooltipTimeout) clearTimeout(tooltipTimeout)
+		tooltipTimeout = setTimeout(() => {
+			tooltipOpen = false
+		}, 3000)
+	}
+
+	function hideTooltip() {
+		tooltipOpen = false
+		if (tooltipTimeout) {
+			clearTimeout(tooltipTimeout)
+			tooltipTimeout = null
+		}
+	}
+
+	// Cleanup on unmount
+	$effect(() => {
+		return () => {
+			if (tooltipTimeout) clearTimeout(tooltipTimeout)
+		}
+	})
+</script>
+
+<div class="validated-input">
+	<Input
+		bind:value
+		type="text"
+		{placeholder}
+		{contained}
+		{alignRight}
+		{validationState}
+		{handleBlur}
+		{handleFocus}
+		{handleInput}
+	/>
+	{#if tooltipOpen && validationMessage}
+		<div class="validation-message {validationState}">
+			{validationMessage}
+		</div>
+	{/if}
+</div>
+
+<style lang="scss">
+	@use '$src/themes/colors' as *;
+	@use '$src/themes/spacing' as *;
+	@use '$src/themes/typography' as *;
+	@use '$src/themes/layout' as *;
+
+	.validated-input {
+		width: 240px;
+	}
+
+	.validation-message {
+		margin-top: $unit-half;
+		padding: $unit-half $unit;
+		border-radius: $item-corner-small;
+		font-size: $font-small;
+		font-weight: $medium;
+
+		&.valid {
+			background: $wind-bg-20;
+			color: $wind-text-20;
+		}
+
+		&.invalid {
+			background: $error--bg--light;
+			color: $error;
+		}
+	}
+</style>
diff --git a/src/lib/components/ui/checkbox/Checkbox.svelte b/src/lib/components/ui/checkbox/Checkbox.svelte
index 4d0e984a..197e1080 100644
--- a/src/lib/components/ui/checkbox/Checkbox.svelte
+++ b/src/lib/components/ui/checkbox/Checkbox.svelte
@@ -40,12 +40,6 @@
 		element
 	}: Props = $props()
 
-	$effect(() => {
-		if (onCheckedChange && checked !== undefined) {
-			onCheckedChange(checked)
-		}
-	})
-
 	const sizeClass = $derived(size)
 	// contained prop is an alias for variant='bound'
 	const variantClass = $derived(variant === 'bound' || contained ? 'bound' : '')
@@ -57,6 +51,7 @@
 	{indeterminate}
 	{disabled}
 	{required}
+	{onCheckedChange}
 	name={name ?? ''}
 	value={value ?? ''}
 	class="checkbox {sizeClass} {variantClass} {fullWidthClass} {element || ''} {className || ''}"