/* ===========================================================================
   contact-brief-ledger — editorial, full-width numbered project intake
   ---------------------------------------------------------------------------
   Scope: .vbs-contact-brief-ledger
   Depends on: css/tokens.css, css/base.css
   Contains no literal colour, font, type size, weight, radius, shadow or
   duration. The form is static HTML and posts without a script.

   Structure: a split masthead above four native fieldsets. Each fieldset is a
   numbered ruled ledger entry, and the fields become denser across the page as
   room appears. The close is a lifted reply promise, putting the human outcome
   beside the submit button at the exact point hesitation usually appears.
   =========================================================================== */

/* --- masthead ------------------------------------------------------------- */
.vbs-contact-brief-ledger__header {
	display: grid;
	gap: clamp(2rem, 5vw, 4rem);
	padding-block-end: clamp(3rem, 6vw, 5rem);
}

.vbs-contact-brief-ledger__title {
	margin-block-start: 1.25rem;
	max-inline-size: 13ch;
}

.vbs-contact-brief-ledger__intro {
	display: grid;
	align-content: end;
	gap: 1.75rem;
	max-inline-size: 48ch;
}

.vbs-contact-brief-ledger__availability {
	display: flex;
	align-items: flex-start;
	gap: 0.75rem;
	padding-block-start: 1rem;
	border-block-start: var(--vb-border-hair) solid var(--vb-color-rule);
}

.vbs-contact-brief-ledger__availability-mark {
	flex: none;
	inline-size: 0.65rem;
	block-size: 0.65rem;
	margin-block-start: 0.42rem;
	border-radius: var(--vb-radius-pill);
	background-color: var(--vb-color-accent);
}

@media (min-width: 58rem) {
	.vbs-contact-brief-ledger__header {
		grid-template-columns: minmax(0, 1.35fr) minmax(18rem, 0.65fr);
		align-items: end;
	}

	.vbs-contact-brief-ledger__intro {
		justify-self: end;
	}
}

/* --- ledger frame -------------------------------------------------------- */
.vbs-contact-brief-ledger__form {
	border-block-start: var(--vb-border-hair) solid var(--vb-color-ink);
}

.vbs-contact-brief-ledger__form-head {
	display: flex;
	flex-wrap: wrap;
	align-items: baseline;
	justify-content: space-between;
	gap: 0.65rem 2rem;
	padding-block: 1rem;
}

/* A compact conversion dock keeps the action reachable throughout the long
   mobile ledger. It remains in the form, so it is a native submit control and
   does not require a script to mirror or transfer field state. */
.vbs-contact-brief-ledger__mobile-dock {
	display: none;
}

@media (max-width: 47.99rem) {
	.vbs-contact-brief-ledger__mobile-dock {
		position: sticky;
		inset-block-start: 0;
		z-index: 10;
		display: flex;
		align-items: center;
		justify-content: space-between;
		gap: 1rem;
		margin-inline: calc(var(--vb-gutter) * -0.5);
		padding: 0.65rem calc(var(--vb-gutter) * 0.5);
		background-color: var(--vb-panel);
		background-image: var(--vb-panel-image);
		background-blend-mode: var(--vb-panel-blend);
		border-block: var(--vb-border-hair) solid var(--vb-color-rule);
		box-shadow: var(--vb-shadow-card);
	}

	.vbs-contact-brief-ledger__mobile-progress {
		font-weight: var(--vb-weight-strong);
		color: var(--vb-color-ink-soft);
	}

	.vbs-contact-brief-ledger__mobile-submit {
		flex: none;
		min-block-size: 2.75rem;
		padding-block: 0.65rem;
	}

	.vbs-contact-brief-ledger__row {
		padding-block: clamp(1.5rem, 7vw, 2.25rem);
	}

	.vbs-contact-brief-ledger__choices {
		gap: 0.75rem;
	}
}

.vbs-contact-brief-ledger__row {
	min-inline-size: 0;
	margin: 0;
	padding: clamp(2rem, 4vw, 3.25rem) 0;
	border: 0;
	border-block-start: var(--vb-border-hair) solid var(--vb-color-rule);
}

.vbs-contact-brief-ledger__legend {
	display: grid;
	grid-template-columns: 2.75rem minmax(0, 1fr);
	gap: 1rem;
	inline-size: auto;
	max-inline-size: 100%;
	padding: 0 1.5rem 0 0;
	color: var(--vb-color-ink);
}

.vbs-contact-brief-ledger__index {
	font-family: var(--vb-font-mono);
	font-size: var(--vb-fs-small);
	line-height: var(--vb-lh-h3);
	letter-spacing: var(--vb-ls-eyebrow);
	color: var(--vb-color-accent);
}

.vbs-contact-brief-ledger__legend-copy {
	display: block;
	min-inline-size: 0;
}

.vbs-contact-brief-ledger__legend-title,
.vbs-contact-brief-ledger__legend-note {
	display: block;
}

.vbs-contact-brief-ledger__legend-note {
	margin-block-start: 0.45rem;
	max-inline-size: 56ch;
}

.vbs-contact-brief-ledger__fields,
.vbs-contact-brief-ledger__choices,
.vbs-contact-brief-ledger__brief-grid {
	display: grid;
	gap: 1.5rem;
	margin-block-start: 1.75rem;
}

@media (min-width: 38rem) {
	.vbs-contact-brief-ledger__fields,
	.vbs-contact-brief-ledger__choices,
	.vbs-contact-brief-ledger__brief-grid {
		margin-inline-start: 3.75rem;
	}

	.vbs-contact-brief-ledger__fields--identity,
	.vbs-contact-brief-ledger__fields--range,
	.vbs-contact-brief-ledger__choices {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}
}

@media (min-width: 72rem) {
	.vbs-contact-brief-ledger__fields--identity {
		grid-template-columns: repeat(4, minmax(0, 1fr));
	}

	.vbs-contact-brief-ledger__choices {
		grid-template-columns: repeat(3, minmax(0, 1fr));
	}

	.vbs-contact-brief-ledger__fields--range {
		max-inline-size: calc(75% - 0.5rem);
	}
}

/* --- text, select and textarea fields ----------------------------------- */
.vbs-contact-brief-ledger__field {
	display: grid;
	gap: 0.45rem;
	min-inline-size: 0;
}

.vbs-contact-brief-ledger__label {
	font-size: var(--vb-fs-small);
	line-height: var(--vb-lh-small);
	font-weight: var(--vb-weight-strong);
	color: var(--vb-color-ink);
}

.vbs-contact-brief-ledger__required {
	color: var(--vb-color-accent);
}

.vbs-contact-brief-ledger__optional {
	margin-inline-start: 0.35rem;
	font-family: var(--vb-font-mono);
	font-size: var(--vb-fs-eyebrow);
	line-height: var(--vb-lh-eyebrow);
	letter-spacing: var(--vb-ls-eyebrow);
	font-weight: var(--vb-weight-body);
	color: var(--vb-color-mute);
}

.vbs-contact-brief-ledger__input {
	inline-size: 100%;
	min-inline-size: 0;
	padding: 0.85rem 0;
	font-family: inherit;
	font-size: var(--vb-fs-body);
	line-height: var(--vb-lh-body);
	font-weight: var(--vb-weight-body);
	color: var(--vb-color-ink);
	background-color: transparent;
	border: 0;
	border-block-end: var(--vb-border-hair) solid var(--vb-color-rule);
	border-radius: 0;
	transition: border-color var(--vb-dur-base) var(--vb-ease-out-soft),
	            background-color var(--vb-dur-base) var(--vb-ease-out-soft);
}

.vbs-contact-brief-ledger__input::placeholder {
	color: var(--vb-color-mute);
	opacity: 1;
}

.vbs-contact-brief-ledger__input:hover {
	border-block-end-color: var(--vb-color-mute);
}

.vbs-contact-brief-ledger__input:focus {
	border-block-end-color: var(--vb-color-accent);
}

.vbs-contact-brief-ledger__select-wrap {
	position: relative;
	display: block;
}

.vbs-contact-brief-ledger__select {
	appearance: none;
	-webkit-appearance: none;
	padding-inline-end: 2.75rem;
	cursor: pointer;
}

.vbs-contact-brief-ledger__select-arrow {
	position: absolute;
	inset-inline-end: 0.25rem;
	inset-block-start: 50%;
	transform: translateY(-50%);
	color: var(--vb-color-mute);
	pointer-events: none;
}

.vbs-contact-brief-ledger__textarea {
	min-block-size: 13rem;
	padding: 1rem;
	resize: vertical;
	background-color: var(--vb-panel);
	background-image: var(--vb-panel-image);
	background-blend-mode: var(--vb-panel-blend);
	border: var(--vb-border-hair) solid var(--vb-color-rule);
	border-radius: var(--vb-radius-sm);
}

.vbs-contact-brief-ledger__textarea:hover {
	border-color: var(--vb-color-mute);
}

.vbs-contact-brief-ledger__textarea:focus {
	border-color: var(--vb-color-accent);
}

/* --- engagement choices ------------------------------------------------- */
.vbs-contact-brief-ledger__choice {
	display: grid;
	grid-template-columns: auto minmax(0, 1fr) auto;
	gap: 0.85rem;
	align-items: start;
	min-inline-size: 0;
	padding: 1.1rem;
	border: var(--vb-border-hair) solid var(--vb-color-rule);
	border-radius: var(--vb-radius-sm);
	background-color: var(--vb-panel);
	background-image: var(--vb-panel-image);
	background-blend-mode: var(--vb-panel-blend);
	cursor: pointer;
	transition: border-color var(--vb-dur-base) var(--vb-ease-out-soft),
	            background-color var(--vb-dur-base) var(--vb-ease-out-soft),
	            transform var(--vb-dur-fast) var(--vb-ease-out-soft),
	            box-shadow var(--vb-dur-base) var(--vb-ease-out-soft);
}

.vbs-contact-brief-ledger__choice:hover {
	border-color: var(--vb-chroma-ink);
	transform: translateY(-2px);
}

.vbs-contact-brief-ledger__choice:focus-within {
	border-color: var(--vb-chroma-ink);
	box-shadow: 0 0 0 3px color-mix(in srgb, var(--vb-chroma-ink) 18%, transparent);
}

.vbs-contact-brief-ledger__choice:has(.vbs-contact-brief-ledger__checkbox:checked) {
	border-color: var(--vb-chroma-ink);
	background-color: var(--vb-chroma-soft);
}

.vbs-contact-brief-ledger__checkbox {
	flex: none;
	inline-size: 1.1rem;
	block-size: 1.1rem;
	margin: 0.2rem 0 0;
	accent-color: var(--vb-chroma-ink);
	cursor: pointer;
}

.vbs-contact-brief-ledger__choice-copy {
	display: block;
	min-inline-size: 0;
}

.vbs-contact-brief-ledger__choice-title {
	display: block;
	font-family: var(--vb-font-display);
	font-size: var(--vb-fs-body);
	line-height: var(--vb-lh-h3);
	letter-spacing: var(--vb-ls-h3);
	font-weight: var(--vb-weight-heading);
	color: var(--vb-color-ink);
}

.vbs-contact-brief-ledger__choice-note {
	display: block;
	margin-block-start: 0.45rem;
}

.vbs-contact-brief-ledger__choice-code {
	font-family: var(--vb-font-mono);
	font-size: var(--vb-fs-eyebrow);
	line-height: var(--vb-lh-eyebrow);
	letter-spacing: var(--vb-ls-eyebrow);
	color: var(--vb-chroma-ink);
}

/* --- project note ------------------------------------------------------- */
.vbs-contact-brief-ledger__brief-grid {
	gap: 1.5rem clamp(1.5rem, 4vw, 4rem);
}

.vbs-contact-brief-ledger__prompt {
	align-self: stretch;
	padding: 1.25rem;
	border-block-start: var(--vb-border-hair) solid var(--vb-color-ink);
	border-block-end: var(--vb-border-hair) solid var(--vb-color-rule);
}

.vbs-contact-brief-ledger__prompt-list {
	display: grid;
	gap: 0.7rem;
	margin-block-start: 1.1rem;
}

.vbs-contact-brief-ledger__prompt-list li {
	position: relative;
	padding-inline-start: 1.1rem;
}

.vbs-contact-brief-ledger__prompt-list li::before {
	content: "—";
	position: absolute;
	inset-inline-start: 0;
	color: var(--vb-color-accent);
}

.vbs-contact-brief-ledger__field--url {
	margin-block-start: 2rem;
}

@media (min-width: 62rem) {
	.vbs-contact-brief-ledger__brief-grid {
		grid-template-columns: minmax(0, 1.55fr) minmax(14rem, 0.45fr);
	}
}

/* --- conversion close --------------------------------------------------- */
.vbs-contact-brief-ledger__close {
	display: grid;
	gap: 2rem;
	padding: clamp(1.5rem, 4vw, 3rem);
	background-color: var(--vb-panel);
	background-image: var(--vb-panel-image);
	background-blend-mode: var(--vb-panel-blend);
	border-block-end: var(--vb-border-hair) solid var(--vb-color-ink);
}

.vbs-contact-brief-ledger__promise-title {
	margin-block-start: 0.8rem;
	max-inline-size: 30ch;
}

.vbs-contact-brief-ledger__promise-list {
	display: grid;
	gap: 0.6rem;
	margin-block-start: 1.35rem;
}

.vbs-contact-brief-ledger__promise-list li {
	display: grid;
	grid-template-columns: 2rem minmax(0, 1fr);
	gap: 0.65rem;
}

.vbs-contact-brief-ledger__promise-list span {
	font-family: var(--vb-font-mono);
	color: var(--vb-color-accent);
}

.vbs-contact-brief-ledger__actions {
	display: grid;
	align-content: end;
	gap: 1rem;
}

.vbs-contact-brief-ledger__submit {
	inline-size: 100%;
	justify-content: space-between;
}

.vbs-contact-brief-ledger__privacy {
	color: var(--vb-color-ink);
	border-block-end: var(--vb-border-hair) solid var(--vb-color-rule);
	transition: color var(--vb-dur-base) var(--vb-ease-out-soft),
	            border-color var(--vb-dur-base) var(--vb-ease-out-soft);
}

.vbs-contact-brief-ledger__privacy:hover {
	color: var(--vb-color-accent);
	border-block-end-color: var(--vb-color-accent);
}

@media (min-width: 58rem) {
	.vbs-contact-brief-ledger__close {
		grid-template-columns: minmax(0, 1.45fr) minmax(17rem, 0.55fr);
		align-items: end;
		gap: clamp(3rem, 6vw, 6rem);
	}
}

@media (prefers-reduced-motion: reduce) {
	.vbs-contact-brief-ledger__choice:hover {
		transform: none;
	}
}