/* ===== CONTACT ===== */

.contact-hero {
	
	max-width: var(--maxw);
	
	margin: 0 auto;
	
	padding: 120px var(--pad-x) 60px;
	
}

.contact-hero .eyebrow {
	
	margin-bottom: 32px;
	
}

.contact-hero h1 {
	
	margin-bottom: 40px;
	
	font-family: var(--ff-sans);
	font-weight: 500;
	font-size: clamp(64px, 14vw, 120px);
	line-height: 0.85;
	
	letter-spacing: -0.045em;
	
}

.contact-hero .jp-line {
	
	max-width: 44ch;
	
	color: var(--fg);
	
	font-family: var(--ff-jp);
	font-size: clamp(15px, 1.4vw, 19px);
	line-height: 1.85;
	
}

/* ===== FORM SECTION ===== */

.contact-wrap {

	position: relative;

	display: grid;

	grid-template-columns: 1fr 2fr;
	gap: clamp(40px, 6vw, 100px);

	max-width: var(--maxw);

	margin: 0 auto;

	padding: clamp(60px, 8vh, 120px) var(--pad-x) clamp(80px, 12vh, 160px);
	padding-top: clamp(60px, 8vh, 100px);

}

.contact-wrap::before {

	position: absolute;

	top: 0;
	left: 50%;

	transform: translateX(-50%);

	width: calc(100% - 2 * var(--pad-x));
	height: 1px;

	max-width: calc(var(--maxw) - 2 * var(--pad-x));

	background: var(--line);

	content: "";

}

.contact-side {
	
	position: sticky;
	
	top: 120px;
	
	align-self: start;
	
}

.contact-side .idx {
	
	margin-bottom: 24px;
	
	color: var(--fg-muted);
	
	font-family: var(--ff-mono);
	font-size: 12px;
	
	letter-spacing: 0.14em;
	
}

.contact-side h2 {
	
	margin-bottom: 28px;
	
	font-family: var(--ff-sans);
	font-weight: 500;
	font-size: clamp(32px, 4vw, 56px);
	line-height: 0.95;
	
	letter-spacing: -0.03em;
	
}

.contact-side p {
	
	max-width: 36ch;
	
	margin-bottom: 32px;
	
	color: var(--fg-muted);
	
	font-size: 14px;
	line-height: 1.85;
	
}

.contact-side .channels {
	
	padding-top: 28px;
	
	border-top: 1px solid var(--line);
	
}

.contact-side .channel {
	
	display: flex;
	
	justify-content: space-between;
	align-items: baseline;
	
	padding: 14px 0;
	
	border-bottom: 1px solid var(--line);
	
	font-family: var(--ff-mono);
	font-size: 12px;
	letter-spacing: 0.1em;
	
	text-transform: uppercase;
	
}

.contact-side .channel span:first-child {
	
	color: var(--fg-muted);
	
}

.contact-side .channel b {
	
	font-weight: 400;
	
}

/* ===== FORM ===== */

form {
	
	display: flex;
	
	flex-direction: column;
	gap: 0;
	
}

.field {
	
	display: grid;
	
	grid-template-columns: 220px 1fr;
	gap: 32px;
	
	align-items: start;
	
	padding: 36px 0;
	
	border-bottom: 1px solid var(--line);
	
	transition: padding 0.4s var(--ease);
	
}

.field:first-child {
	
	border-top: 1px solid var(--line);
	
}

.field:focus-within {
	
	padding-left: 8px;
	
}

.field-label {
	
	display: flex;
	
	flex-direction: column;
	gap: 8px;
	
	padding-top: 12px;
	
}

.field-label .num {
	
	color: var(--fg-muted);
	
	font-family: var(--ff-mono);
	font-size: 11px;
	
	letter-spacing: 0.14em;
	
	text-transform: uppercase;
	
}

.field-label .ja {
	
	color: var(--fg);
	
	font-family: var(--ff-jp);
	font-size: 18px;
	font-weight: 500;
	
	letter-spacing: 0.02em;
	
}

.field-label .en {
	
	color: var(--fg-muted);
	
	font-family: var(--ff-mono);
	font-size: 11px;
	
	letter-spacing: 0.12em;
	
	text-transform: uppercase;
	
}

.field-label .req {
	
	display: inline-block;
	
	width: fit-content;
	
	margin-top: 4px;
	
	padding: 2px 6px;
	
	background: var(--fg);
	
	color: var(--bg);
	
	font-family: var(--ff-mono);
	font-size: 10px;
	
	letter-spacing: 0.1em;
	
}

.field-input {
	
	display: flex;
	
	flex-direction: column;
	gap: 8px;
	
}

.field input[type="text"],
.field input[type="email"],
.field textarea {
	
	width: 100%;
	
	padding: 8px 0 12px;
	
	border: none;
	
	border-bottom: 1px solid var(--line-strong);
	
	background: transparent;
	
	color: var(--fg);
	
	font-family: var(--ff-jp);
	font-size: clamp(20px, 2vw, 28px);
	font-weight: 400;
	
	letter-spacing: 0.01em;
	
	outline: none;
	
	transition: border-color 0.3s var(--ease);
	
	resize: none;
	
}

.field input::placeholder,
.field textarea::placeholder {
	
	opacity: 0.5;
	
	color: var(--fg-muted);
	
}

.field input:focus,
.field textarea:focus {
	
	border-bottom-color: var(--fg);
	
}

.field input:invalid:not(:placeholder-shown),
.field textarea:invalid:not(:placeholder-shown) {
	
	
}

.field textarea {
	
	min-height: 180px;
	
	padding-top: 12px;
	
	font-size: 18px;
	line-height: 1.7;
	
}

.field-hint {
	
	color: var(--fg-muted);
	
	font-family: var(--ff-mono);
	font-size: 11px;
	
	letter-spacing: 0.06em;
	
}

.field-hint .count {
	
	color: var(--fg);
	
}

.field-error {
	
	display: none;
	
	color: var(--fg);
	
	font-family: var(--ff-mono);
	font-size: 11px;
	letter-spacing: 0.08em;
	
	text-transform: uppercase;
	
}

.field.invalid .field-error {
	
	display: block;
	
}

.field.invalid input,
.field.invalid textarea {
	
	border-bottom-color: var(--fg);
	
}

.field.invalid .field-label .num::after {
	
	color: var(--fg);
	
	content: " — required";
	
}

/* Submit row */

.submit-row {
	
	display: flex;
	
	flex-wrap: wrap;
	
	gap: 24px;
	
	justify-content: space-between;
	
	align-items: center;
	
	margin-top: 48px;
	
}

.submit-row .note {
	
	max-width: 40ch;
	
	color: var(--fg-muted);
	
	font-family: var(--ff-mono);
	font-size: 11px;
	line-height: 1.7;
	
	letter-spacing: 0.12em;
	
	text-transform: uppercase;
	
}

.submit-btn {
	
	display: inline-flex;
	
	gap: 16px;
	
	align-items: center;
	
	position: relative;
	
	padding: 22px 32px;
	
	overflow: hidden;
	
	border: none;
	
	background: var(--fg);
	
	color: var(--bg);
	
	font-family: var(--ff-mono);
	font-size: 12px;
	
	letter-spacing: 0.16em;
	
	cursor: pointer;
	
	transition: transform 0.4s var(--ease);
	
	text-transform: uppercase;
	
}

.submit-btn:hover {
	
	transform: translateY(-2px);
	
}

.submit-btn .arrow {
	
	display: inline-block;
	
	transition: transform 0.4s var(--ease);
	
}

.submit-btn:hover .arrow {
	
	transform: translateX(8px);
	
}

.submit-btn:disabled {
	
	opacity: 0.5;
	
	transform: none;
	
	cursor: not-allowed;
	
}

.submit-btn.loading {
	
	pointer-events: none;
	
}

.submit-btn.loading .label-text::after {
	
	content: "...";
	
}

/* Progress bar (showing scroll completion of form) */

.progress {
	
	position: fixed;
	
	top: 0;
	right: 0;
	left: 0;
	
	z-index: 200;
	
	height: 2px;
	
	background: transparent;
	
	pointer-events: none;
	
}

.progress .bar {
	
	width: 0%;
	height: 100%;
	
	background: var(--fg);
	
	transition: width 0.4s var(--ease);
	
	mix-blend-mode: difference;
	
}

@media (max-width: 860px) {
	
	.contact-wrap {
		
		grid-template-columns: 1fr;
		
	}
	
	.contact-side {
		
		position: static;
		
	}
	
	.field {
		
		grid-template-columns: 1fr;
		gap: 14px;
		
		padding: 28px 0;
		
	}
	
	.field-label {
		
		padding-top: 0;
		
	}
	
	.submit-row {
		
		flex-direction: column;
		
		align-items: flex-start;
		
	}
	
}