Implement 'internal submit button' to the 'Textbox' component. Remove separate submit to the Headcode search card.

Adjust the hover and active styles of the 'TrainService' expandable cards.

src/lib/components/ui/Textbox.svelte

@@ -2,6 +2,8 @@
 	import { fade } from 'svelte/transition';
 	import type { HTMLInputAttributes } from 'svelte/elements';
 
+	import { IconChevronRightFilled } from '@tabler/icons-svelte';
+
 	interface Props extends HTMLInputAttributes {
 		value?: string;
 		label?: string;
@@ -9,6 +11,7 @@
 		type?: 'text' | 'password' | 'email' | 'number' | 'search' | 'tel' | 'url';
 		error?: string;
 		uppercase?: boolean;
+		onsubmit?: (val: string) => void | Promise<void>;
 		[key: string]: any;
 	}
 
@@ -19,10 +22,18 @@
 		type = 'text',
 		error = '',
 		uppercase = false,
+		onsubmit,
 		...rest
 	}: Props = $props();
 
 	let isFocussed = $state(false);
+
+	const handleSubmit = (e: Event) => {
+		e.preventDefault();
+		if (onsubmit && value) {
+			onsubmit(value);
+		}
+	}
 </script>
 
 <div class="input-wrapper" class:focussed={isFocussed} class:has-error={!!error}>
@@ -30,6 +41,7 @@
 		<label for="adaptive-input">{label}</label>
 	{/if}
 
+	<form onsubmit={handleSubmit} class="input-container">
 	<input
 		id="adaptive-input"
 		class:all-caps={uppercase}
@@ -41,6 +53,19 @@
 		{...rest}
 	/>
 
+	{#if onsubmit}
+	<button
+		type="submit"
+		class="submit-icon"
+		transition:fade
+		disabled={!value}
+		aria-label="Submit"
+	>
+		<IconChevronRightFilled />
+	</button>
+	{/if}
+	</form>
+
 	{#if error}
 		<span class="error-message" transition:fade>{error}</span>
 	{/if}
@@ -50,11 +75,22 @@
 	.input-wrapper {
 		display: flex;
 		flex-direction: column;
-		gap: 8px;
+		gap: 0.4rem;
 		width: 100%;
 		font-family: 'URW Gothic', sans-serif;
 	}
 
+	.input-container {
+		position: relative;
+		display: flex;
+		align-items: center;
+		width: 100%;
+		background-color: var(--color-title);
+		border-radius: 5000px;
+		transition: all 0.2s;
+		overflow: hidden;
+	}
+
 	label {
 		font-size: 0.9rem;
 		font-weight: 400;
@@ -62,19 +98,46 @@
 	}
 
 	input {
+		width: 100%;
+		background: transparent;
 		min-height: 40px;
-		padding: 0 16px;
-		background-color: var(--color-title);
-		border: 2px solid transparent;
-		border-radius: 20px;
+		height: 100%;
+		line-height: normal;
+		padding: 0 48px;
+		border: none;
 		color: var(--color-bg-dark);
 		font-size: 1.2rem;
 		transition: all 0.2s ease-in-out;
 		outline: none;
 		text-align: center;
-		box-shadow: var(--shadow-std);
 	}
 
+	.submit-icon {
+		position: absolute;
+		background: transparent;
+		right: 0;
+		border: none;
+		color: var(--color-bg-dark);
+		cursor: pointer;
+		width: 48px;
+		height: 48px;
+		display: flex;
+		align-items: center;
+		justify-content: center;
+		opacity: 0.75;
+		transition: opacity 0.2s, transform 0.2s;
+	}
+
+	.submit-icon:hover:not(:disabled) {
+        opacity: 1;
+        transform: translateX(2px);
+    }
+
+    .submit-icon:disabled {
+        opacity: 0.5;
+        cursor: not-allowed;
+    }
+
 	.all-caps {
 		text-transform: uppercase;
 	}