.ntc-calculator {
	--ntc-ink: #3e3942;
	--ntc-muted: #766f78;
	--ntc-paper: #ffffff;
	--ntc-line: rgba(70, 58, 72, 0.13);
	--ntc-rose: #a76379;
	--ntc-rose-soft: #f6e9ec;
	--ntc-plum: #62566f;
	--ntc-lavender: #d8cfee;
	--ntc-sage: #72867a;
	--ntc-sage-soft: #edf3ee;
	--ntc-button: #604461;
	--ntc-button-hover: #4f3850;
	position: relative;
	box-sizing: border-box;
	max-width: 1080px;
	margin: 2rem auto;
	padding: clamp(1.5rem, 4vw, 4rem);
	overflow: hidden;
	color: var(--ntc-ink);
	background:
		linear-gradient(90deg, transparent 49.8%, rgba(70, 58, 72, 0.026) 50%, transparent 50.2%),
		linear-gradient(rgba(70, 58, 72, 0.026) 1px, transparent 1px),
		var(--ntc-paper);
	background-size: 100% 100%, 100% 48px, auto;
	border: 1px solid var(--ntc-line);
	border-radius: 30px;
	font-family: 'Avenir Next', 'Helvetica Neue', 'Hiragino Kaku Gothic ProN', 'Yu Gothic', YuGothic, Meiryo, sans-serif;
	-webkit-font-smoothing: antialiased;
}

.ntc-calculator *,
.ntc-calculator *::before,
.ntc-calculator *::after {
	box-sizing: border-box;
}

.ntc-calculator__intro {
	max-width: 720px;
}

.ntc-calculator__eyebrow,
.ntc-calculator__results-label,
.ntc-number-card__index {
	margin: 0 0 1rem;
	font-size: 0.72rem;
	font-weight: 700;
	line-height: 1.4;
	letter-spacing: 0.14em;
	color: var(--ntc-rose);
}

.ntc-calculator__title {
	margin: 0;
	font-size: clamp(1.65rem, 4vw, 2.75rem);
	font-weight: 700;
	line-height: 1.35;
	letter-spacing: 0.015em;
}

.ntc-calculator__lead {
	max-width: 640px;
	margin: 1rem 0 0;
	font-size: clamp(0.95rem, 2vw, 1.08rem);
	line-height: 1.9;
	color: var(--ntc-muted);
}

.ntc-calculator__form {
	display: grid;
	grid-template-columns: minmax(150px, 1.2fr) minmax(90px, 0.7fr) minmax(90px, 0.7fr) auto;
	gap: 0.85rem;
	align-items: end;
	max-width: 900px;
	margin-top: clamp(2rem, 5vw, 3.5rem);
	padding: clamp(1rem, 3vw, 1.5rem);
	background: rgba(255, 253, 251, 0.82);
	border: 1px solid var(--ntc-line);
	border-radius: 18px;
	box-shadow: 0 18px 50px rgba(70, 58, 72, 0.06);
}

.ntc-calculator__field {
	display: grid;
	gap: 0.5rem;
}

.ntc-calculator__field label {
	font-size: 0.78rem;
	font-weight: 700;
	letter-spacing: 0.06em;
}

.ntc-calculator__field input {
	width: 100%;
	min-height: 50px;
	margin: 0;
	padding: 0.7rem 0.9rem;
	color: var(--ntc-ink);
	background: #fff;
	border: 1px solid var(--ntc-line);
	border-radius: 14px;
	font: inherit;
	font-variant-numeric: tabular-nums;
}

.ntc-calculator__field input::placeholder {
	color: #cbc8cd;
	font-weight: 400;
	opacity: 1;
}

.ntc-calculator__field input:focus {
	border-color: var(--ntc-rose);
	outline: 3px solid rgba(167, 99, 121, 0.15);
	outline-offset: 1px;
}

.ntc-calculator__field input[aria-invalid='true'] {
	border-color: #b54747;
}

.ntc-calculator__submit {
	display: inline-flex;
	gap: 1rem;
	align-items: center;
	justify-content: center;
	min-height: 50px;
	margin: 0;
	padding: 0.75rem 1.25rem;
	color: #fff;
	background: var(--ntc-button);
	border: 1px solid var(--ntc-button);
	border-radius: 999px;
	cursor: pointer;
	font: inherit;
	font-size: 0.9rem;
	font-weight: 700;
	transition: transform 160ms ease, background-color 160ms ease;
}

.ntc-calculator__submit:hover {
	background: var(--ntc-button-hover);
	border-color: var(--ntc-button-hover);
	transform: translateY(-1px);
}

.ntc-calculator__submit:focus-visible,
.ntc-calculator__reset:focus-visible {
	outline: 3px solid rgba(167, 99, 121, 0.24);
	outline-offset: 3px;
}

.ntc-calculator__error,
.ntc-calculator__privacy {
	grid-column: 1 / -1;
	margin: 0;
	font-size: 0.78rem;
}

.ntc-calculator__error {
	color: #9b3434;
}

.ntc-calculator__privacy {
	color: var(--ntc-muted);
}

.ntc-calculator__results {
	margin-top: clamp(2.5rem, 6vw, 5rem);
	padding-top: clamp(2rem, 4vw, 3rem);
	border-top: 1px solid var(--ntc-line);
}

.ntc-calculator__results-label {
	font-size: 0.82rem;
	letter-spacing: 0.08em;
}

.ntc-calculator__results[hidden],
.ntc-calculator__error[hidden] {
	display: none;
}

.ntc-calculator__grid {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 1rem;
}

.ntc-number-card {
	position: relative;
	min-height: 280px;
	padding: clamp(1.25rem, 3vw, 1.75rem);
	overflow: hidden;
	background: rgba(255, 253, 251, 0.88);
	border: 1px solid var(--ntc-line);
	border-radius: 22px;
}

.ntc-number-card::before {
	position: absolute;
	right: -35px;
	bottom: -35px;
	width: 130px;
	height: 130px;
	content: '';
	border: 1px solid rgba(167, 99, 121, 0.18);
	border-radius: 50%;
}

.ntc-number-card h4 {
	margin: 0;
	font-size: 1.05rem;
	font-weight: 700;
	line-height: 1.65;
}

.ntc-number-card__symbol {
	display: block;
}

.ntc-number-card__role {
	margin: 0.35rem 0 0;
	font-size: 0.8rem;
	line-height: 1.7;
	color: var(--ntc-muted);
}

.ntc-number-card__number {
	position: relative;
	z-index: 1;
	margin: 2rem 0 0;
	font-family: 'Avenir Next', 'Helvetica Neue', 'Hiragino Kaku Gothic ProN', 'Yu Gothic', YuGothic, Meiryo, sans-serif;
	font-size: clamp(4.5rem, 10vw, 7rem);
	font-weight: 300;
	line-height: 1;
	letter-spacing: -0.07em;
	color: var(--ntc-rose);
}

.ntc-number-card--birthday {
	background: linear-gradient(145deg, #fffaf9, var(--ntc-rose-soft));
}

.ntc-number-card--life-path {
	background: var(--ntc-plum);
	color: #fff;
}

.ntc-number-card--life-path .ntc-number-card__index,
.ntc-number-card--life-path .ntc-number-card__number {
	color: var(--ntc-lavender);
}

.ntc-number-card--life-path .ntc-number-card__role {
	color: rgba(255, 255, 255, 0.65);
}

.ntc-number-card--life-path::before {
	border-color: rgba(255, 255, 255, 0.16);
}

.ntc-number-card--challenge {
	background: linear-gradient(145deg, #fff, var(--ntc-sage-soft));
}

.ntc-number-card--challenge .ntc-number-card__index,
.ntc-number-card--challenge .ntc-number-card__number {
	color: var(--ntc-sage);
}

.ntc-calculator__reset {
	margin: 1.5rem 0 0;
	padding: 0.3rem 0;
	color: var(--ntc-muted);
	background: transparent;
	border: 0;
	border-bottom: 1px solid currentColor;
	cursor: pointer;
	font: inherit;
	font-size: 0.8rem;
}

@media (max-width: 860px) {
	.ntc-calculator__form {
		grid-template-columns: repeat(3, minmax(0, 1fr));
	}

	.ntc-calculator__submit {
		grid-column: 1 / -1;
		justify-self: start;
	}
}

@media (max-width: 560px) {
	.ntc-calculator {
		margin: 1rem auto;
		border-radius: 20px;
	}

	.ntc-calculator__form {
		grid-template-columns: 1fr 1fr;
	}

	.ntc-calculator__field--year {
		grid-column: 1 / -1;
	}

	.ntc-calculator__grid {
		grid-template-columns: 1fr;
	}

	.ntc-number-card {
		min-height: 220px;
	}

	.ntc-calculator__submit {
		width: 100%;
	}
}

@media (prefers-reduced-motion: reduce) {
	.ntc-calculator__submit {
		transition: none;
	}

	.ntc-calculator__submit:hover {
		transform: none;
	}
}