/* Interactive tool workspace (Input → Process → Result) */

.hn-tool {
	margin: 0;
}

.hn-tool__loading {
	margin: 0;
}

.hn-tool__modes {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
	margin-bottom: 1.25rem;
}

.hn-tool__mode {
	appearance: none;
	border: 1px solid var(--border);
	background: #fff;
	color: var(--text-secondary);
	font: inherit;
	font-size: 0.875rem;
	padding: 0.45rem 0.75rem;
	border-radius: var(--radius);
	cursor: pointer;
	text-align: left;
	line-height: 1.3;
	transition:
		background-color 0.2s ease,
		border-color 0.2s ease,
		color 0.2s ease,
		transform 0.2s ease;
}

.hn-tool__mode:hover {
	border-color: #c5d4e8;
	color: var(--text-primary);
	transform: translateY(-1px);
}

.hn-tool__mode:active {
	transform: translateY(0);
}

.hn-tool__mode.is-active {
	border-color: var(--primary);
	background: var(--primary-light);
	color: var(--primary);
	font-weight: 600;
}

.hn-tool__fields {
	display: grid;
	gap: 1rem;
	grid-template-columns: 1fr 1fr;
	margin-bottom: 1.25rem;
}

.hn-tool__fields--3 {
	grid-template-columns: 1fr 1fr 1fr;
}

@media (max-width: 560px) {
	.hn-tool__fields {
		grid-template-columns: 1fr;
	}

	.hn-tool__fields--3 {
		grid-template-columns: 1fr;
	}
}

.hn-tool__field label {
	display: block;
	font-size: 0.875rem;
	font-weight: 500;
	margin-bottom: 0.35rem;
	color: var(--text-secondary);
}

.hn-tool__field input {
	width: 100%;
	min-height: 44px;
	padding: 0.65rem 0.85rem;
	border: 1px solid var(--border);
	border-radius: var(--radius);
	font: inherit;
	background: #fff;
	box-sizing: border-box;
}

.hn-tool__field input:focus {
	outline: none;
	box-shadow: var(--focus);
	border-color: var(--primary);
}

.hn-tool__actions {
	display: flex;
	flex-wrap: wrap;
	gap: 0.75rem;
	margin-bottom: 1rem;
}

.hn-tool__error {
	margin: 0 0 1rem;
	color: var(--error);
	font-size: 0.9375rem;
}

.hn-tool__result {
	margin-top: 0.5rem;
	padding: 1rem 1.15rem;
	background: var(--surface);
	border: 1px solid var(--border);
	border-radius: var(--radius);
	animation: hn-tool-result-in 0.28s ease both;
}

@keyframes hn-tool-result-in {
	from {
		opacity: 0;
		transform: translateY(6px);
	}
	to {
		opacity: 1;
		transform: translateY(0);
	}
}

.hn-tool__result-label {
	margin: 0 0 0.25rem;
	font-size: 0.75rem;
	text-transform: uppercase;
	letter-spacing: 0.06em;
	color: var(--text-secondary);
}

.hn-tool__result-value {
	margin: 0 0 0.85rem;
	font-size: 1.75rem;
	font-weight: 700;
	letter-spacing: -0.02em;
	font-variant-numeric: tabular-nums;
}

.hn-tool__copy {
	min-height: 40px;
}

.hn-tool__courses {
	display: flex;
	flex-direction: column;
	gap: 0.85rem;
	margin-bottom: 1.25rem;
}

.hn-tool__course {
	display: grid;
	gap: 0.75rem;
	grid-template-columns: 1.4fr 0.7fr 0.9fr auto;
	align-items: end;
	padding: 0.85rem;
	border: 1px solid var(--border);
	border-radius: var(--radius);
	background: var(--surface);
}

@media (max-width: 720px) {
	.hn-tool__course {
		grid-template-columns: 1fr 1fr;
	}

	.hn-tool__course .hn-tool__field--course {
		grid-column: 1 / -1;
	}

	.hn-tool__remove {
		grid-column: 1 / -1;
	}
}

.hn-tool__field select {
	width: 100%;
	min-height: 44px;
	padding: 0.65rem 0.85rem;
	border: 1px solid var(--border);
	border-radius: var(--radius);
	font: inherit;
	background: #fff;
	box-sizing: border-box;
}

.hn-tool__field select:focus {
	outline: none;
	box-shadow: var(--focus);
	border-color: var(--primary);
}

.hn-tool__field input[type='text'] {
	width: 100%;
	min-height: 44px;
	padding: 0.65rem 0.85rem;
	border: 1px solid var(--border);
	border-radius: var(--radius);
	font: inherit;
	background: #fff;
	box-sizing: border-box;
}

.hn-tool__remove {
	min-height: 44px;
	white-space: nowrap;
}

.hn-tool__result-meta {
	margin: 0 0 0.85rem;
	color: var(--text-secondary);
	font-size: 0.9375rem;
}

.hn-tool__result-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
}

.hn-tool__privacy {
	margin: 0 0 1rem;
}

.hn-tool__preview-frame {
	margin: 0.85rem 0 1rem;
	padding: 0.85rem;
	border: 1px solid var(--border);
	border-radius: var(--radius);
	background: #fff;
	text-align: center;
}

.hn-tool__preview-frame[hidden] {
	display: none !important;
}

.hn-tool__preview {
	display: block;
	width: auto;
	max-width: 100%;
	max-height: 280px;
	margin: 0 auto;
	border: 0;
	border-radius: var(--radius-sm);
	object-fit: contain;
	background: var(--surface);
}

.hn-tool__preview[hidden] {
	display: none !important;
}

.hn-tool__preview-cap {
	margin: 0.5rem 0 0;
	font-size: 0.75rem;
	text-transform: uppercase;
	letter-spacing: 0.06em;
	color: var(--text-secondary);
}

.hn-tool__check {
	display: flex;
	align-items: center;
	gap: 0.5rem;
	margin-bottom: 1rem;
}

.hn-tool__check input {
	width: auto;
	min-height: auto;
}

.hn-tool__course--simple {
	grid-template-columns: 1.4fr 0.9fr auto;
}

@media (max-width: 720px) {
	.hn-tool__course--simple {
		grid-template-columns: 1fr;
	}
}

.hn-tool__result-meta:empty {
	display: none;
}

.hn-tool__field input[type='file'] {
	padding: 0.5rem 0;
	border: none;
	min-height: auto;
	background: transparent;
}

.hn-tool__dropzone {
	position: relative;
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 0.35rem;
	min-height: 148px;
	margin: 0 0 1.25rem;
	padding: 1.25rem 1rem;
	border: 1.5px dashed var(--border);
	border-radius: var(--radius);
	background: #fff;
	text-align: center;
	cursor: pointer;
	transition:
		border-color 0.2s ease,
		background-color 0.2s ease,
		box-shadow 0.2s ease,
		transform 0.2s ease;
}

.hn-tool__dropzone:hover,
.hn-tool__dropzone:focus-visible {
	border-color: var(--brand-orange);
	background: #fff8f2;
	outline: none;
	box-shadow: 0 0 0 3px rgba(244, 124, 32, 0.18);
}

.hn-tool__dropzone.is-dragover {
	border-color: var(--brand-orange);
	border-style: solid;
	background: #fff4eb;
	transform: translateY(-1px);
}

.hn-tool__dropzone.has-file {
	border-style: solid;
	border-color: #c5d4e8;
	background: var(--surface);
}

.hn-tool__dropzone-input {
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border: 0;
}

.hn-tool__dropzone-title {
	margin: 0;
	font-size: 1rem;
	font-weight: 600;
	color: var(--text-primary);
}

.hn-tool__dropzone-hint {
	margin: 0;
	font-size: 0.875rem;
	color: var(--text-secondary);
}

.hn-tool__dropzone-name {
	margin: 0.35rem 0 0;
	font-size: 0.875rem;
	font-weight: 500;
	color: var(--brand-orange);
	word-break: break-all;
}

@media (prefers-reduced-motion: reduce) {
	.hn-tool__dropzone,
	.hn-tool__dropzone.is-dragover {
		transform: none;
	}
}

.tool-flow li {
	transition:
		background-color 0.2s ease,
		border-color 0.2s ease,
		color 0.2s ease;
}

.tool-flow li.is-active {
	border-color: var(--primary);
	background: var(--primary-light);
	color: var(--primary);
	font-weight: 600;
}

.tool-flow li.is-done {
	border-color: #bbf7d0;
	background: #f0fdf4;
	color: var(--success);
}

@media (prefers-reduced-motion: reduce) {
	.hn-tool__result {
		animation: none;
	}

	.hn-tool__mode:hover,
	.hn-tool__mode:active {
		transform: none;
	}
}