.conversion {
	width: 100%;
	max-width: 900px;
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
	gap: 18px;
	align-items: start;
	padding: 18px;
	box-sizing: border-box;
}

:root {
	--bg: #f4f7fb;
	--card: #ffffff;
	--muted: #6b7280;
	--accent: #4f46e5;
	--input-border: #d1d5db;
	--shadow: 0 6px 18px rgba(15, 23, 42, 0.08);
	--radius: 12px;
}

html,
body {
	height: 100%;
	margin: 0;
}
body {
	font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto,
		"Helvetica Neue", Arial;
	background: linear-gradient(180deg, var(--bg), #eef2ff 60%);
	color: #111827;
	display: flex;
	flex-direction: column;
	align-items: center;
	min-height: 100vh;
	padding: 32px 16px;
	box-sizing: border-box;
	-webkit-font-smoothing: antialiased;
}

.container {
	max-width: 960px;
	width: 100%;
	margin: 0 auto;
	padding: 22px;
	box-sizing: border-box;
	text-align: center;
}
.container h2 {
	margin: 0 0 12px 0;
	font-size: 5rem;
	color: #0f172a;
}

.main {
	background: transparent;
	display: flex;
	justify-content: center;
	align-items: center;
	flex: 1;
	width: 100%;
}

.from,
.to {
	background: var(--card);
	border-radius: var(--radius);
	padding: 16px;
	box-shadow: var(--shadow);
	display: flex;
	flex-direction: column;
	gap: 12px;
	align-items: stretch;
}

.fromP p,
.toP p {
	margin: 0;
	font-weight: 600;
	color: #0b1220;
	font-size: 0.98rem;
}

.fromI,
.toI,
.fromS,
.toS {
	display: block;
	width: 100%;
}

input[type="text"],
select {
	width: 100%;
	padding: 10px 12px;
	font-size: 1rem;
	border: 1px solid var(--input-border);
	border-radius: 8px;
	box-sizing: border-box;
	background: #fff;
	color: #0b1220;
	transition: border-color 160ms ease, box-shadow 160ms ease;
	outline: none;
}

#toAmount[readonly] {
	background: #f8fafc;
	cursor: default;
}

input:focus,
select:focus {
	border-color: var(--accent);
	box-shadow: 0 6px 14px rgba(79, 70, 229, 0.12);
}

#fromImg,
#toImg {
	display: flex;
	align-items: center;
	gap: 8px;
	justify-content: flex-end;
}
#fromImg img,
#toImg img {
	height: 28px;
	width: auto;
	display: block;
	border-radius: 4px;
	border: 1px solid rgba(0, 0, 0, 0.06);
}

footer {
	text-align: center;
	font-size: 0.85rem;
	color: var(--muted);
	width: 100%;
	padding: 12px 0 6px 0;
}

@media (max-width: 640px) {
	.conversion {
		grid-template-columns: 1fr;
		gap: 14px;
		padding: 12px;
	}
	body {
		padding: 18px;
	}
}
.conversion {
	width: 100%;
	max-width: 900px;
	display: grid;
	grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
	gap: 18px;
	align-items: start;
	padding: 18px;
	box-sizing: border-box;
}

:root {
	--bg: #f4f7fb;
	--card: #ffffff;
	--muted: #6b7280;
	--accent: #4f46e5;
	--input-border: #d1d5db;
	--shadow: 0 6px 18px rgba(15, 23, 42, 0.08);
	--radius: 12px;
}

/* Page base */
html,
body {
	height: 100%;
	margin: 0;
}
body {
	font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto,
		"Helvetica Neue", Arial;
	background: linear-gradient(180deg, var(--bg), #eef2ff 60%);
	color: #111827;
	display: flex;
	flex-direction: column; /* stack header, main, footer vertically */
	align-items: center;
	min-height: 100vh;
	padding: 32px 16px;
	box-sizing: border-box;
	-webkit-font-smoothing: antialiased;
}

body div.return a {
	align-self: flex-start;
	margin: 5px 10px;
	background: #e0e7ff;
	border-radius: 50%;
	border: 1.5px solid transparent;
	width: 30px;
	height: 30px;
	display: flex;
	align-items: center;
	justify-content: center;
	font-size: 1.2rem;
	text-decoration: none;
	color: inherit;
}

.return {
	position: absolute;
	left: -22px;
	top: 50%;
	transform: translateY(-50%);
}

body div.return a:hover {
	background: #ffffff;
	color: white;
}

a {
	text-decoration: none;
}

/* App container */
.container {
	max-width: 960px;
	width: 100%;
	margin: 0 auto;
	padding: 22px;
	box-sizing: border-box;
	text-align: center;
	position: relative;
}
.container h2 {
	margin: 0 0 12px 0;
	font-size: 3rem;
	color: #0f172a;
}

/* Main card */
.main {
	background: transparent;
	display: flex;
	justify-content: center;
	align-items: center;
	flex: 1; /* take remaining space between header and footer */
	width: 100%;
}

/* Card style for each side */
.from,
.to {
	background: var(--card);
	border-radius: var(--radius);
	padding: 16px;
	box-shadow: var(--shadow);
	display: flex;
	flex-direction: column;
	gap: 12px;
	align-items: stretch;
}

/* Label */
.fromP p,
.toP p {
	margin: 0;
	font-weight: 600;
	color: #0b1220;
	font-size: 0.98rem;
}

/* Input + select row layout */
.fromI,
.toI,
.fromS,
.toS {
	display: block;
	width: 100%;
}

/* Inputs and selects */
input[type="text"],
select {
	width: 100%;
	padding: 10px 12px;
	font-size: 1rem;
	border: 1px solid var(--input-border);
	border-radius: 8px;
	box-sizing: border-box;
	background: #fff;
	color: #0b1220;
	transition: border-color 160ms ease, box-shadow 160ms ease;
	outline: none;
}

/* read-only input style */
#toAmount[readonly] {
	background: #f8fafc;
	cursor: default;
}

/* Focus state */
input:focus,
select:focus {
	border-color: var(--accent);
	box-shadow: 0 6px 14px rgba(79, 70, 229, 0.12);
}

/* Flag container */
#fromImg,
#toImg {
	display: flex;
	align-items: center;
	gap: 8px;
	justify-content: flex-end;
}
#fromImg img,
#toImg img {
	height: 28px;
	width: auto;
	display: block;
	border-radius: 4px;
	border: 1px solid rgba(0, 0, 0, 0.06);
}

/* Footer */
footer {
	text-align: center;
	font-size: 0.85rem;
	color: var(--muted);
	width: 100%;
	padding: 12px 0 6px 0;
}

/* Small screens: single column */
@media (max-width: 640px) {
	.conversion {
		grid-template-columns: 1fr;
		gap: 14px;
		padding: 12px;
	}
	body {
		padding: 18px;
	}
}