.eea-calculator,
.eea-calculator * {
	box-sizing: border-box;
}

.eea-calculator {
	--eea-primary: #176b52;
	--eea-primary-dark: #0f513d;
	--eea-accent: #eaf7f2;
	--eea-ink: #17201d;
	--eea-muted: #5d6965;
	--eea-border: #d7e0dc;
	--eea-danger: #a12622;
	max-width: 900px;
	margin: 2rem auto;
	padding: clamp(1.25rem, 3vw, 2rem);
	border: 1px solid var(--eea-border);
	border-radius: 18px;
	background: #fff;
	box-shadow: 0 14px 38px rgba(21, 54, 43, 0.08);
	color: var(--eea-ink);
}

.eea-calculator__intro {
	margin-bottom: 1.5rem;
}

.eea-calculator__title {
	margin: 0 0 0.5rem;
	font-size: clamp(1.5rem, 4vw, 2.15rem);
	line-height: 1.2;
}

.eea-calculator__intro p,
.eea-tool-panel__description,
.eea-calculator__notice,
.eea-calculator__noscript {
	margin: 0;
	color: var(--eea-muted);
}

.eea-tool-picker {
	display: grid;
	grid-template-columns: minmax(190px, 0.8fr) minmax(260px, 1.2fr);
	align-items: center;
	gap: 0.9rem 1rem;
	margin-top: 1rem;
	padding: 1rem;
	border: 1px solid #b9dfd2;
	border-radius: 12px;
	background: var(--eea-accent);
}

.eea-tool-picker label {
	margin: 0;
	font-weight: 700;
	line-height: 1.35;
}

.eea-tool-picker select {
	width: 100%;
	min-height: 48px;
	margin: 0;
	padding: 0.7rem 2.5rem 0.7rem 0.85rem;
	border: 1px solid #8ca69d;
	border-radius: 10px;
	background-color: #fff;
	color: var(--eea-ink);
	font: inherit;
	font-weight: 600;
}

.eea-tool-picker select:focus {
	border-color: var(--eea-primary);
	outline: 3px solid rgba(23, 107, 82, 0.16);
	outline-offset: 1px;
}

.eea-tool-panel {
	padding-top: 0.25rem;
}

.eea-tool-panel[hidden] {
	display: none !important;
}

.eea-tool-panel__title {
	margin: 0 0 0.45rem;
	font-size: clamp(1.25rem, 3vw, 1.65rem);
	line-height: 1.3;
}

.eea-tool-panel__title:focus {
	outline: none;
}

.eea-tool-panel__description {
	margin: 0 0 1.25rem;
	line-height: 1.6;
}

.eea-device-builder,
.eea-system-settings {
	min-width: 0;
	margin: 0 0 1.5rem;
	padding: 0;
	border: 0;
}

.eea-device-builder legend,
.eea-system-settings legend {
	width: 100%;
	margin: 0 0 0.45rem;
	padding: 0;
	font-size: 1.15rem;
	font-weight: 700;
}

.eea-device-builder__help {
	margin: 0 0 1rem;
	color: var(--eea-muted);
	font-size: 0.9rem;
	line-height: 1.5;
}

.eea-device-list {
	display: grid;
	gap: 0.75rem;
}

.eea-device-row {
	display: grid;
	grid-template-columns: minmax(160px, 1.5fr) minmax(95px, 0.75fr) minmax(70px, 0.55fr) minmax(85px, 0.65fr) minmax(115px, 0.9fr) minmax(110px, 0.85fr) auto;
	align-items: end;
	gap: 0.55rem;
	padding: 0.8rem;
	border: 1px solid var(--eea-border);
	border-radius: 12px;
	background: #f8faf9;
}

.eea-device-row label {
	display: flex;
	min-width: 0;
	flex-direction: column;
	gap: 0.3rem;
	margin: 0;
}

.eea-device-row label > span {
	color: #34403c;
	font-size: 0.76rem;
	font-weight: 700;
}

.eea-device-row input,
.eea-device-row select {
	width: 100%;
	min-width: 0;
	min-height: 42px;
	margin: 0;
	padding: 0.55rem 0.6rem;
	border: 1px solid #aebbb6;
	border-radius: 8px;
	background: #fff;
	color: var(--eea-ink);
	font: inherit;
	font-size: 0.88rem;
}

.eea-device-row input:focus,
.eea-device-row select:focus {
	border-color: var(--eea-primary);
	outline: 3px solid rgba(23, 107, 82, 0.14);
	outline-offset: 1px;
}

.eea-mini-input {
	display: flex;
	min-width: 0;
}

.eea-mini-input input {
	border-radius: 8px 0 0 8px;
}

.eea-mini-input b {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	padding: 0.45rem 0.5rem;
	border: 1px solid #aebbb6;
	border-left: 0;
	border-radius: 0 8px 8px 0;
	background: #edf1ef;
	font-size: 0.78rem;
}

.eea-remove-device {
	min-height: 42px;
	padding: 0.55rem 0.7rem;
	border: 1px solid #d6aaa7;
	border-radius: 8px;
	background: #fff;
	color: #8b2521;
	cursor: pointer;
	font: inherit;
	font-size: 0.82rem;
	font-weight: 700;
}

.eea-remove-device:hover,
.eea-remove-device:focus-visible {
	border-color: var(--eea-danger);
	outline: 2px solid rgba(161, 38, 34, 0.14);
}

.eea-remove-device:disabled {
	opacity: 0.45;
	cursor: not-allowed;
}

.eea-add-device {
	margin-top: 0.85rem;
}

.eea-system-settings {
	padding-top: 0.25rem;
}

.eea-calculator__grid {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 1.1rem;
}

.eea-field {
	display: flex;
	min-width: 0;
	flex-direction: column;
	gap: 0.4rem;
}

.eea-field--wide {
	grid-column: 1 / -1;
}

.eea-field label {
	font-weight: 700;
	line-height: 1.35;
}

.eea-field label span {
	color: var(--eea-danger);
}

.eea-field input,
.eea-field select {
	width: 100%;
	min-height: 48px;
	margin: 0;
	padding: 0.75rem 0.85rem;
	border: 1px solid #aebbb6;
	border-radius: 10px;
	background: #fff;
	color: var(--eea-ink);
	font: inherit;
	line-height: 1.2;
}

.eea-field input:focus,
.eea-field select:focus {
	border-color: var(--eea-primary);
	outline: 3px solid rgba(23, 107, 82, 0.16);
	outline-offset: 1px;
}

.eea-field small {
	color: var(--eea-muted);
	font-size: 0.84rem;
	line-height: 1.4;
}

.eea-input-group {
	display: flex;
	min-width: 0;
}

.eea-input-group input {
	min-width: 0;
	border-radius: 10px 0 0 10px;
}

.eea-input-group__unit {
	display: inline-flex;
	min-width: 64px;
	align-items: center;
	justify-content: center;
	padding: 0.65rem 0.8rem;
	border: 1px solid #aebbb6;
	border-left: 0;
	border-radius: 0 10px 10px 0;
	background: #f2f5f4;
	color: #34403c;
	font-size: 0.9rem;
	font-weight: 700;
	white-space: nowrap;
}

.eea-calculator__actions {
	display: flex;
	flex-wrap: wrap;
	gap: 0.75rem;
	margin-top: 1.5rem;
}

.eea-button {
	min-height: 46px;
	padding: 0.75rem 1.25rem;
	border: 1px solid transparent;
	border-radius: 10px;
	cursor: pointer;
	font: inherit;
	font-weight: 700;
	transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease, transform 160ms ease;
}

.eea-button:hover {
	transform: translateY(-1px);
}

.eea-button:focus-visible {
	outline: 3px solid rgba(23, 107, 82, 0.24);
	outline-offset: 2px;
}

.eea-button--primary {
	background: var(--eea-primary);
	color: #fff;
}

.eea-button--primary:hover,
.eea-button--primary:focus-visible {
	background: var(--eea-primary-dark);
	color: #fff;
}

.eea-button--secondary {
	border-color: #aebbb6;
	background: #fff;
	color: #26322e;
}

.eea-button--secondary:hover,
.eea-button--secondary:focus-visible {
	border-color: var(--eea-primary);
	color: var(--eea-primary-dark);
}

.eea-calculator__error {
	margin-top: 1rem;
	padding: 0.8rem 1rem;
	border-left: 4px solid var(--eea-danger);
	border-radius: 8px;
	background: #fff1f0;
	color: #761c19;
	font-weight: 600;
}

.eea-results {
	margin-top: 1.75rem;
	padding: clamp(1rem, 2.5vw, 1.5rem);
	border: 1px solid #b9dfd2;
	border-radius: 14px;
	background: var(--eea-accent);
}

.eea-results:focus {
	outline: 3px solid rgba(23, 107, 82, 0.18);
	outline-offset: 3px;
}

.eea-results__title {
	margin: 0 0 1rem;
	font-size: 1.35rem;
}

.eea-results__grid {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 0.8rem;
}

.eea-result-card {
	min-width: 0;
	padding: 1rem;
	border: 1px solid rgba(23, 107, 82, 0.18);
	border-radius: 12px;
	background: #fff;
}

.eea-result-card__label {
	display: block;
	margin-bottom: 0.3rem;
	color: var(--eea-muted);
	font-size: 0.86rem;
}

.eea-result-card strong {
	display: block;
	color: var(--eea-primary-dark);
	font-size: clamp(1.05rem, 2.4vw, 1.3rem);
	line-height: 1.3;
	word-break: break-word;
}

.eea-results__formula {
	margin: 1rem 0 0;
	color: #31413b;
	font-size: 0.9rem;
	line-height: 1.5;
}

.eea-calculator__notice,
.eea-calculator__noscript {
	margin-top: 1.25rem;
	padding: 0.9rem 1rem;
	border-radius: 10px;
	background: #f5f7f6;
	font-size: 0.9rem;
	line-height: 1.55;
}

[data-eea-results][hidden],
[data-eea-tool-results][hidden],
[data-eea-error][hidden] {
	display: none !important;
}

@media (max-width: 720px) {
	.eea-tool-picker {
		grid-template-columns: 1fr;
	}

	.eea-device-row {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}

	.eea-device-row__device,
	.eea-remove-device {
		grid-column: 1 / -1;
	}

	.eea-calculator__grid,
	.eea-results__grid {
		grid-template-columns: 1fr;
	}

	.eea-field--wide {
		grid-column: auto;
	}

	.eea-calculator__actions {
		flex-direction: column;
	}

	.eea-button {
		width: 100%;
	}
}

@media (max-width: 460px) {
	.eea-device-row {
		grid-template-columns: 1fr;
	}

	.eea-device-row__device,
	.eea-remove-device {
		grid-column: auto;
	}
}