/* Helical pile load calculator — mockup-aligned tool UI */

.pps-section--calc {
	padding-top: 48px;
	padding-bottom: 0;
	background: #f7f6f3;
}

.pps-calc {
	--calc-bg: #f3f2ef;
	--calc-surface: #ffffff;
	--calc-surface-2: #f3f2ef;
	--calc-fg: #141414;
	--calc-fg-2: #4a4a4a;
	--calc-fg-3: #7a7a7a;
	--calc-line: rgba(0, 0, 0, 0.08);
	--calc-accent: var(--pps-red);
	--calc-accent-fg: #ffffff;
	--calc-ok: #1f7a3a;
	--calc-ok-bg: #eaf6ee;
	--calc-warn: #b3620a;
	--calc-warn-bg: #fff6e8;
	--calc-bad: var(--pps-red);
	--calc-bad-bg: #fceceb;
	--calc-radius: 10px;
	color: var(--calc-fg);
	font-family: var(--pps-body);
	font-size: 0.95rem;
	line-height: 1.45;
}

.pps-calc * {
	box-sizing: border-box;
}

.pps-calc [hidden] {
	display: none !important;
}

.pps-calc__grid {
	display: grid;
	grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
	gap: 22px;
	align-items: start;
}

@media (max-width: 960px) {
	.pps-calc__grid {
		grid-template-columns: minmax(0, 1fr);
	}
}

.pps-calc__panel {
	background: var(--calc-surface);
	border: 1px solid var(--calc-line);
	border-radius: var(--calc-radius);
	box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03), 0 8px 24px rgba(0, 0, 0, 0.04);
	min-width: 0;
	padding: 22px 22px 20px;
}

.pps-calc__head {
	margin-bottom: 18px;
}

.pps-calc__head--split {
	display: flex;
	align-items: baseline;
	justify-content: space-between;
	gap: 12px;
}

.pps-calc__head h2 {
	font-family: var(--pps-display);
	font-weight: 400;
	font-size: 1.45rem;
	text-transform: uppercase;
	letter-spacing: 0.03em;
	margin: 0;
	color: var(--calc-fg);
	padding-bottom: 10px;
	border-bottom: 3px solid var(--calc-accent);
	display: inline-block;
}

.pps-calc__sub {
	margin: 10px 0 0;
	color: var(--calc-fg-2);
	font-size: 0.9rem;
	max-width: 48ch;
}

.pps-calc__hint {
	font-size: 0.72rem;
	color: var(--calc-fg-3);
	text-transform: uppercase;
	letter-spacing: 0.12em;
	font-family: var(--pps-display);
	flex: none;
}

.pps-calc__panel-b {
	display: grid;
	gap: 14px;
}

.pps-calc__row {
	display: grid;
	grid-template-columns: repeat(2, minmax(0, 1fr));
	gap: 12px;
}

.pps-calc__row--three {
	grid-template-columns: repeat(3, minmax(0, 1fr));
}

@media (max-width: 560px) {
	.pps-calc__row,
	.pps-calc__row--three {
		grid-template-columns: minmax(0, 1fr);
	}
}

.pps-calc label.f {
	display: grid;
	gap: 6px;
	min-width: 0;
	font-size: 0.8rem;
	color: var(--calc-fg-2);
	font-weight: 600;
}

.pps-calc label.f .t {
	line-height: 1.3;
}

.pps-calc label.f .u {
	color: var(--calc-fg-3);
	font-weight: 500;
}

.pps-calc input,
.pps-calc select {
	font: inherit;
	font-size: 0.95rem;
	font-weight: 500;
	color: var(--calc-fg);
	background: var(--calc-bg);
	border: 1px solid var(--calc-line);
	border-radius: 8px;
	padding: 0 12px;
	height: 44px;
	width: 100%;
	min-width: 0;
	font-variant-numeric: tabular-nums;
	transition: border-color 0.15s, box-shadow 0.15s;
}

.pps-calc input:focus,
.pps-calc select:focus,
.pps-calc button:focus-visible {
	outline: none;
	border-color: var(--calc-accent);
	box-shadow: 0 0 0 3px rgba(196, 33, 28, 0.15);
}

.pps-calc input[type="number"] {
	-moz-appearance: textfield;
}

.pps-calc input[type="number"]::-webkit-outer-spin-button,
.pps-calc input[type="number"]::-webkit-inner-spin-button {
	-webkit-appearance: none;
	margin: 0;
}

.pps-calc label.chk {
	display: flex;
	align-items: center;
	gap: 8px;
	font-size: 0.85rem;
	color: var(--calc-fg-2);
	font-weight: 500;
}

.pps-calc label.chk input {
	width: 16px;
	height: 16px;
	margin: 0;
	accent-color: var(--calc-accent);
}

.pps-calc__actions {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 10px;
	padding-top: 4px;
}

.pps-calc button {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	font-family: var(--pps-display);
	font-weight: 400;
	font-size: 1rem;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	padding: 12px 18px;
	border-radius: 8px;
	border: 1px solid var(--calc-line);
	background: var(--calc-surface);
	color: var(--calc-fg);
	cursor: pointer;
	transition: filter 0.15s, background 0.15s, border-color 0.15s;
}

.pps-calc button.primary {
	background: var(--calc-accent);
	border-color: var(--calc-accent);
	color: var(--calc-accent-fg);
}

.pps-calc button.secondary {
	background: #fff;
	border-color: rgba(0, 0, 0, 0.12);
}

.pps-calc button.ghost {
	background: transparent;
	border-color: transparent;
	color: var(--calc-fg-3);
	padding-inline: 10px;
}

.pps-calc button:hover {
	filter: brightness(0.97);
}

.pps-calc button.ghost:hover {
	color: var(--calc-fg);
	filter: none;
}

.pps-calc button[disabled] {
	opacity: 0.6;
	cursor: default;
}

.pps-calc__tiles {
	display: grid;
	grid-template-columns: repeat(3, minmax(0, 1fr));
	gap: 12px;
	margin-bottom: 14px;
}

.pps-calc__tile {
	background: var(--calc-bg);
	border-radius: 8px;
	padding: 14px 14px 12px;
	min-width: 0;
}

.pps-calc__tile .k {
	font-size: 0.68rem;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	color: var(--calc-fg-3);
	font-weight: 700;
	font-family: var(--pps-display);
}

.pps-calc__tile .v {
	font-family: var(--pps-display);
	font-weight: 400;
	font-size: clamp(1.55rem, 2.8vw, 2rem);
	line-height: 1.05;
	margin-top: 6px;
	font-variant-numeric: tabular-nums;
	color: var(--calc-fg);
}

.pps-calc__tile .v small {
	font-family: var(--pps-body);
	font-weight: 500;
	font-size: 0.7rem;
	color: var(--calc-fg-3);
	margin-left: 4px;
	letter-spacing: 0.04em;
}

.pps-calc__tile .s {
	font-size: 0.75rem;
	color: var(--calc-fg-3);
	margin-top: 4px;
}

.pps-calc__tile--accent .v {
	color: var(--calc-accent);
}

@media (max-width: 560px) {
	.pps-calc__tiles {
		grid-template-columns: minmax(0, 1fr);
	}
}

.pps-calc__flags {
	display: grid;
	gap: 8px;
	margin-bottom: 12px;
}

.pps-calc__flags:empty {
	margin: 0;
}

.pps-calc__flag {
	display: flex;
	align-items: flex-start;
	gap: 10px;
	font-size: 0.82rem;
	padding: 11px 12px;
	border-radius: 8px;
	background: var(--calc-surface-2);
	color: var(--calc-fg-2);
}

.pps-calc__flag-icon {
	flex: none;
	width: 18px;
	height: 18px;
	margin-top: 1px;
}

.pps-calc__flag--ok {
	background: var(--calc-ok-bg);
	color: #1a5c2e;
}

.pps-calc__flag--warn {
	background: var(--calc-warn-bg);
	color: #8a4a08;
}

.pps-calc__flag--bad {
	background: var(--calc-bad-bg);
	color: #8f1814;
}

.pps-calc__flag b {
	color: inherit;
}

.pps-calc__tablewrap {
	overflow-x: auto;
	margin: 0 -4px;
	padding: 0 4px;
}

.pps-calc table {
	width: 100%;
	border-collapse: collapse;
	font-size: 0.84rem;
	font-variant-numeric: tabular-nums;
}

.pps-calc th,
.pps-calc td {
	text-align: left;
	padding: 8px 8px;
	border-bottom: 1px solid var(--calc-line);
	vertical-align: top;
}

.pps-calc th {
	font-size: 0.68rem;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	color: var(--calc-fg-3);
	font-weight: 700;
	font-family: var(--pps-display);
}

.pps-calc td.param {
	color: var(--calc-fg-2);
}

.pps-calc td.param b {
	display: inline-block;
	min-width: 2.4em;
	margin-right: 6px;
	font-family: var(--pps-display);
	font-weight: 400;
	font-size: 0.95rem;
	color: var(--calc-fg);
}

.pps-calc td.val {
	text-align: right;
	font-weight: 700;
	white-space: nowrap;
	color: var(--calc-fg);
}

.pps-calc td.unit {
	color: var(--calc-fg-3);
	white-space: nowrap;
	width: 72px;
}

.pps-calc tr.group td {
	background: var(--calc-surface-2);
	font-size: 0.68rem;
	letter-spacing: 0.1em;
	text-transform: uppercase;
	color: var(--calc-fg-3);
	font-weight: 700;
	font-family: var(--pps-display);
	padding: 6px 8px;
	border-bottom: none;
}

.pps-calc__formulas {
	margin-top: 14px;
	padding-top: 12px;
	border-top: 1px solid var(--calc-line);
	font-size: 0.82rem;
	color: var(--calc-fg-2);
}

.pps-calc__formulas summary {
	cursor: pointer;
	font-weight: 700;
	color: var(--calc-fg);
}

.pps-calc__formulas code {
	font-family: "SFMono-Regular", Menlo, Consolas, monospace;
	font-size: 0.78rem;
	background: var(--calc-surface-2);
	padding: 1px 5px;
	border-radius: 4px;
}

.pps-calc__formulas ul {
	padding-left: 18px;
	margin: 8px 0 0;
	display: grid;
	gap: 4px;
}

.pps-calc__lower {
	margin-top: 40px;
	margin-inline: calc(50% - 50vw);
	width: 100vw;
	padding: 48px max(20px, calc((100vw - var(--pps-wrap)) / 2)) 72px;
	background: #ffffff;
	border-top: 1px solid rgba(0, 0, 0, 0.05);
	box-sizing: border-box;
}

.pps-calc__explain {
	margin-top: 0;
	display: grid;
	grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
	gap: 28px;
}

@media (max-width: 960px) {
	.pps-calc__explain {
		grid-template-columns: minmax(0, 1fr);
	}
}

.pps-calc__glossary {
	list-style: none;
	margin: 0;
	padding: 0;
	display: grid;
	gap: 16px;
}

.pps-calc__glossary li {
	display: grid;
	grid-template-columns: auto 1fr;
	gap: 12px;
	align-items: start;
}

.pps-calc__num {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 34px;
	height: 34px;
	border-radius: 999px;
	background: rgba(196, 33, 28, 0.1);
	color: var(--calc-accent);
	font-family: var(--pps-display);
	font-size: 0.85rem;
	letter-spacing: 0.04em;
	flex: none;
}

.pps-calc__glossary strong {
	display: block;
	margin-bottom: 4px;
	font-size: 0.95rem;
}

.pps-calc__glossary p {
	margin: 0;
	color: var(--calc-fg-2);
	font-size: 0.88rem;
}

.pps-calc__faq details {
	border-top: 1px solid var(--calc-line);
	padding: 12px 0;
}

.pps-calc__faq details:last-child {
	border-bottom: 1px solid var(--calc-line);
}

.pps-calc__faq summary {
	cursor: pointer;
	font-weight: 700;
	list-style: none;
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
}

.pps-calc__faq summary::-webkit-details-marker {
	display: none;
}

.pps-calc__faq summary::after {
	content: "+";
	font-family: var(--pps-display);
	font-size: 1.2rem;
	color: var(--calc-accent);
	line-height: 1;
}

.pps-calc__faq details[open] summary::after {
	content: "–";
}

.pps-calc__faq details p {
	margin: 10px 0 0;
	color: var(--calc-fg-2);
	font-size: 0.9rem;
}

.pps-calc__faq a {
	color: var(--calc-accent);
	text-decoration: underline;
}

.pps-calc__lead {
	margin-top: 28px;
}

.pps-calc__lead-form {
	grid-template-columns: repeat(4, minmax(0, 1fr));
	align-items: end;
}

@media (max-width: 960px) {
	.pps-calc__lead-form {
		grid-template-columns: repeat(2, minmax(0, 1fr));
	}
}

@media (max-width: 560px) {
	.pps-calc__lead-form {
		grid-template-columns: minmax(0, 1fr);
	}
}

.pps-calc__full {
	grid-column: 1 / -1;
}

.pps-calc .req {
	color: var(--calc-accent);
}

.pps-calc__status {
	font-size: 0.9rem;
	padding: 11px 12px;
	border-radius: 8px;
	background: var(--calc-ok-bg);
	color: #1a5c2e;
}

.pps-calc__status--err {
	background: var(--calc-bad-bg);
	color: #8f1814;
}

.pps-calc__fine {
	font-size: 0.75rem;
	color: var(--calc-fg-3);
	align-self: center;
}

.pps-calc__toast {
	position: fixed;
	left: 50%;
	bottom: calc(env(safe-area-inset-bottom, 0px) + 18px);
	transform: translateX(-50%);
	background: var(--pps-black);
	color: #f5f5f5;
	font-size: 0.9rem;
	padding: 10px 16px;
	border-radius: 8px;
	opacity: 0;
	pointer-events: none;
	transition: opacity 0.2s;
	max-width: calc(100% - 32px);
	z-index: 40;
}

.pps-calc__toast.is-show {
	opacity: 1;
}

.pps-calc__disclaimer {
	margin-top: 22px;
	font-size: 0.78rem;
	color: var(--calc-fg-3);
	max-width: 80ch;
	line-height: 1.5;
}

.pps-calc__disclaimer strong {
	color: var(--calc-fg-2);
}

.pps-page-hero--calculator .pps-page-hero__photo {
	background: #111 url("../images/why-helical.jpg?v=1") 50% 40% / cover no-repeat;
}