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

.ctdc-calculator {
	--ctdc-bg: #ffffff;
	--ctdc-panel: #ffffff;
	--ctdc-text: #111827;
	--ctdc-muted: #667085;
	--ctdc-border: #d8dee7;
	--ctdc-soft: #f5f7fb;
	--ctdc-primary: #304156;
	--ctdc-primary-hover: #243246;
	--ctdc-green: #167243;
	max-width: 760px;
	width: 100%;
	margin: 24px auto;
	padding: clamp(16px, 4vw, 28px);
	background: var(--ctdc-bg);
	color: var(--ctdc-text);
	border: 1px solid var(--ctdc-border);
	border-radius: 22px;
	box-shadow: 0 18px 42px rgba(15, 23, 42, 0.08);
	font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
	line-height: 1.45;
	overflow: hidden;
}

.ctdc-calculator.ctdc-dark {
	--ctdc-bg: #101827;
	--ctdc-panel: #151f31;
	--ctdc-text: #f8fafc;
	--ctdc-muted: #b7c0cf;
	--ctdc-border: #334155;
	--ctdc-soft: #1b2638;
	--ctdc-primary: #64748b;
	--ctdc-primary-hover: #7b8ca5;
	--ctdc-green: #34d399;
	box-shadow: none;
}

.ctdc-header {
	display: flex;
	flex-direction: column;
	gap: 14px;
	margin-bottom: 22px;
}

.ctdc-kicker {
	margin: 0 0 4px;
	color: var(--ctdc-muted);
	font-size: 0.88rem;
	font-weight: 700;
	text-transform: uppercase;
	letter-spacing: 0.08em;
}

.ctdc-header h2 {
	margin: 0;
	color: var(--ctdc-text);
	font-size: clamp(1.55rem, 5vw, 2.25rem);
	line-height: 1.15;
}

.ctdc-theme-toggle,
.ctdc-actions button {
	width: 100%;
	min-height: 48px;
	border: 0;
	border-radius: 14px;
	padding: 13px 16px;
	background: var(--ctdc-primary);
	color: #ffffff;
	font-size: 1rem;
	font-weight: 800;
	cursor: pointer;
	transition: transform 160ms ease, background 160ms ease;
}

.ctdc-theme-toggle:hover,
.ctdc-actions button:hover {
	background: var(--ctdc-primary-hover);
	transform: translateY(-1px);
}

.ctdc-theme-toggle:focus-visible,
.ctdc-actions button:focus-visible,
.ctdc-field input:focus-visible {
	outline: 3px solid rgba(59, 130, 246, 0.45);
	outline-offset: 3px;
}

.ctdc-form {
	display: grid;
	grid-template-columns: 1fr;
	gap: 16px;
}

.ctdc-field {
	min-width: 0;
}

.ctdc-field label {
	display: block;
	margin-bottom: 7px;
	color: var(--ctdc-text);
	font-weight: 800;
}

.ctdc-field input {
	display: block;
	width: 100%;
	max-width: 100%;
	min-width: 0;
	min-height: 50px;
	border: 1px solid var(--ctdc-border);
	border-radius: 14px;
	padding: 12px 14px;
	background: var(--ctdc-panel);
	color: var(--ctdc-text);
	font-size: 1rem;
}

.ctdc-help {
	display: block;
	margin-top: 7px;
	color: var(--ctdc-muted);
	font-size: 0.92rem;
	overflow-wrap: anywhere;
}

.ctdc-error {
	padding: 12px 14px;
	border-radius: 14px;
	background: #fff1f2;
	color: #9f1239;
	font-weight: 700;
}

.ctdc-dark .ctdc-error {
	background: #47101c;
	color: #fecdd3;
}

.ctdc-actions {
	display: grid;
	grid-template-columns: 1fr;
	gap: 12px;
	margin-top: 4px;
}

.ctdc-primary {
	background: #1f7a4f !important;
}

.ctdc-results {
	width: 100%;
	max-width: 100%;
	margin-top: 30px;
	padding-top: 18px;
	border-top: 3px solid var(--ctdc-text);
	background: transparent;
	overflow: hidden;
}

.ctdc-results h3,
.ctdc-results h4 {
	margin: 0;
	color: var(--ctdc-text);
	line-height: 1.18;
}

.ctdc-results h3 {
	font-size: clamp(1.45rem, 5vw, 2rem);
	margin-bottom: 14px;
}

.ctdc-results h4 {
	font-size: clamp(1.1rem, 4vw, 1.35rem);
	margin-top: 24px;
	padding-top: 20px;
	border-top: 1px solid var(--ctdc-border);
}

.ctdc-result-row {
	display: flex;
	align-items: flex-start;
	justify-content: space-between;
	gap: 16px;
	width: 100%;
	padding: 17px 0;
	border-bottom: 1px solid var(--ctdc-border);
	min-width: 0;
}

.ctdc-result-row span {
	min-width: 0;
	color: var(--ctdc-muted);
	font-size: clamp(1rem, 4vw, 1.16rem);
	font-weight: 800;
	overflow-wrap: anywhere;
}

.ctdc-result-row strong {
	min-width: 0;
	max-width: 58%;
	color: var(--ctdc-text);
	font-size: clamp(1.06rem, 4.5vw, 1.25rem);
	font-weight: 900;
	text-align: right;
	overflow-wrap: anywhere;
}

.ctdc-main-row strong {
	color: var(--ctdc-green);
	font-size: clamp(1.25rem, 5.2vw, 1.7rem);
}

.ctdc-disclaimer {
	margin: 20px 0 0;
	color: var(--ctdc-muted);
	font-size: 0.95rem;
	overflow-wrap: anywhere;
}

@media (max-width: 520px) {
	.ctdc-calculator {
		margin: 12px auto;
		border-radius: 16px;
		border-left: 0;
		border-right: 0;
	}

	.ctdc-result-row {
		flex-direction: column;
		gap: 6px;
	}

	.ctdc-result-row strong {
		max-width: 100%;
		text-align: left;
	}
}

@media (min-width: 700px) {
	.ctdc-header {
		flex-direction: row;
		align-items: flex-start;
		justify-content: space-between;
	}

	.ctdc-theme-toggle {
		width: auto;
		min-width: 132px;
	}

	.ctdc-form {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}

	.ctdc-field:first-child,
	.ctdc-error,
	.ctdc-actions {
		grid-column: 1 / -1;
	}

	.ctdc-actions {
		grid-template-columns: repeat(3, minmax(0, 1fr));
	}
}

@media print {
	.ctdc-actions,
	.ctdc-theme-toggle {
		display: none !important;
	}

	.ctdc-calculator {
		box-shadow: none;
		border: 0;
	}
}