/* =====================================================================
   Backup-Kostenrechner — Bausteine mit Präfix .calc-
   Wird nur auf /backup-systeme/kostenrechner/ geladen (siehe functions.php).
   Nutzt ausschließlich die Design-Variablen aus main.css.
   ===================================================================== */

.calc { display: grid; gap: 1.5rem; align-items: start; }
@media (min-width: 1024px) {
	.calc { grid-template-columns: minmax(0, 1.4fr) minmax(340px, 0.9fr); gap: 2rem; }
}
.calc-form { display: grid; gap: 1.25rem; min-width: 0; }

/* ---------- Eingabe-Karten ---------- */
.calc-card {
	margin: 0; min-width: 0;
	border-radius: 1rem;
	border: 1px solid hsl(var(--border-hsl) / 0.7);
	background: hsl(var(--card-hsl) / 0.6);
	padding: 1.5rem;
	transition: border-color 0.25s;
}
.calc-card:focus-within { border-color: hsl(var(--primary-hsl) / 0.45); }
@media (min-width: 640px) { .calc-card { padding: 1.75rem 2rem; } }

.calc-card__head { display: flex; gap: 1rem; align-items: flex-start; }
.calc-card__icon {
	flex: none; display: grid; place-items: center;
	width: 2.75rem; height: 2.75rem; border-radius: 0.75rem;
	background: hsl(var(--primary-hsl) / 0.1);
	border: 1px solid hsl(var(--primary-hsl) / 0.25);
	color: var(--primary);
}
.calc-card__icon svg { width: 1.35rem; height: 1.35rem; }
.calc-card__title {
	margin: 0; padding: 0;
	font-family: var(--font-display); font-size: 1.125rem; font-weight: 600; line-height: 1.3; color: var(--fg);
}
.calc-card__hint { margin: 0.35rem 0 0; font-size: 0.875rem; line-height: 1.6; color: var(--muted-fg); }
.calc-price {
	display: inline-block; margin-top: 0.6rem;
	font-family: var(--font-display); font-size: 0.75rem; letter-spacing: 0.06em;
	color: var(--primary);
}
.calc-card__control { margin-top: 1.25rem; }
@media (min-width: 640px) {
	.calc-card--row { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }
	.calc-card--row .calc-card__control { margin-top: 0; flex: none; }
}

/* ---------- Stepper (− Zahl +) ---------- */
.calc-stepper {
	display: inline-grid; grid-template-columns: 3rem 4.5rem 3rem; align-items: stretch;
	border-radius: 0.75rem; overflow: hidden;
	border: 1px solid hsl(var(--border-hsl));
	background: hsl(var(--bg-hsl) / 0.7);
}
.calc-stepper button {
	appearance: none; border: 0; background: transparent; color: var(--fg);
	min-height: 3rem; font: 500 1.35rem/1 var(--font-display); cursor: pointer;
	transition: background 0.15s, color 0.15s;
}
.calc-stepper button:hover { background: hsl(var(--primary-hsl) / 0.14); color: var(--primary); }
.calc-stepper button:active { background: hsl(var(--primary-hsl) / 0.24); }
.calc-stepper button:disabled { opacity: 0.3; cursor: default; background: transparent; color: var(--fg); }
.calc-stepper input {
	appearance: textfield; -moz-appearance: textfield;
	width: 100%; border: 0; border-inline: 1px solid hsl(var(--border-hsl));
	background: transparent; color: var(--fg); text-align: center;
	font: 600 1.25rem/1 var(--font-display);
}
.calc-stepper input::-webkit-outer-spin-button,
.calc-stepper input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.calc-stepper input:focus-visible,
.calc-stepper button:focus-visible { outline: 2px solid var(--primary); outline-offset: -2px; }

/* ---------- Schalter ---------- */
.calc-switch { position: relative; display: inline-flex; align-items: center; gap: 0.75rem; cursor: pointer; }
.calc-switch input { position: absolute; opacity: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.calc-switch__track {
	width: 3.5rem; height: 2rem; border-radius: 999px; flex: none;
	background: hsl(var(--border-hsl)); border: 1px solid hsl(var(--border-hsl));
	transition: background 0.2s, border-color 0.2s; position: relative;
}
.calc-switch__track::after {
	content: ""; position: absolute; top: 50%; left: 0.2rem; width: 1.5rem; height: 1.5rem;
	border-radius: 50%; background: var(--fg); transform: translateY(-50%);
	transition: left 0.2s cubic-bezier(.3,.7,.3,1), background 0.2s;
}
.calc-switch input:checked + .calc-switch__track { background: hsl(var(--primary-hsl) / 0.9); border-color: var(--primary); }
.calc-switch input:checked + .calc-switch__track::after { left: calc(100% - 1.7rem); background: var(--primary-fg); }
.calc-switch input:focus-visible + .calc-switch__track { outline: 2px solid var(--primary); outline-offset: 3px; }
.calc-switch__label { font-size: 0.875rem; color: var(--muted-fg); min-width: 2.2rem; }

.calc-reveal {
	display: grid; grid-template-rows: 0fr; transition: grid-template-rows 0.3s ease, margin 0.3s ease;
}
.calc-reveal > div { overflow: hidden; min-height: 0; }
.calc-reveal.is-open { grid-template-rows: 1fr; margin-top: 1.25rem; }
.calc-reveal__inner {
	display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 1rem;
	padding-top: 1.25rem; border-top: 1px solid hsl(var(--border-hsl) / 0.6);
}
.calc-reveal__inner label { font-size: 0.9375rem; color: var(--fg); }
.calc-reveal__inner small { display: block; margin-top: 0.2rem; font-size: 0.8125rem; color: var(--muted-fg); }

/* ---------- Datenmenge: Regler ---------- */
.calc-volume { display: flex; align-items: center; gap: 1rem; }
.calc-range {
	-webkit-appearance: none; appearance: none; flex: 1; min-width: 0; height: 2.75rem; margin: 0;
	background: transparent; cursor: pointer; --p: 0%;
}
.calc-range::-webkit-slider-runnable-track {
	height: 0.5rem; border-radius: 999px;
	background: linear-gradient(to right, var(--primary) var(--p), hsl(var(--border-hsl)) var(--p));
}
.calc-range::-moz-range-track { height: 0.5rem; border-radius: 999px; background: hsl(var(--border-hsl)); }
.calc-range::-moz-range-progress { height: 0.5rem; border-radius: 999px; background: var(--primary); }
.calc-range::-webkit-slider-thumb {
	-webkit-appearance: none; width: 1.6rem; height: 1.6rem; margin-top: -0.55rem; border-radius: 50%;
	background: var(--fg); border: 4px solid var(--primary);
	box-shadow: 0 0 24px -2px hsl(var(--primary-hsl) / 0.7);
}
.calc-range::-moz-range-thumb {
	width: 1.1rem; height: 1.1rem; border-radius: 50%;
	background: var(--fg); border: 4px solid var(--primary);
	box-shadow: 0 0 24px -2px hsl(var(--primary-hsl) / 0.7);
}
.calc-range:focus-visible { outline: 2px solid var(--primary); outline-offset: 4px; border-radius: 0.5rem; }
.calc-tb {
	display: inline-flex; align-items: baseline; gap: 0.35rem; flex: none;
	padding: 0.55rem 0.8rem; border-radius: 0.75rem;
	border: 1px solid hsl(var(--border-hsl)); background: hsl(var(--bg-hsl) / 0.7);
}
.calc-tb input {
	appearance: textfield; -moz-appearance: textfield; width: 3.2rem; border: 0; background: transparent;
	color: var(--fg); text-align: right; font: 600 1.25rem/1 var(--font-display);
}
.calc-tb input::-webkit-outer-spin-button, .calc-tb input::-webkit-inner-spin-button { -webkit-appearance: none; margin: 0; }
.calc-tb input:focus { outline: none; }
.calc-tb:focus-within { border-color: var(--primary); }
.calc-tb span { font-size: 0.875rem; color: var(--muted-fg); }

.calc-tiers { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: 1rem; }
.calc-tier {
	appearance: none; cursor: pointer; background: transparent; font: inherit;
	padding: 0.3rem 0.7rem; border-radius: 999px; font-size: 0.75rem; white-space: nowrap;
	border: 1px solid hsl(var(--border-hsl) / 0.8); color: var(--muted-fg);
	transition: all 0.2s;
}
.calc-tier:hover { border-color: hsl(var(--primary-hsl) / 0.5); color: var(--fg); }
.calc-tier:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.calc-tier.is-active {
	border-color: hsl(var(--primary-hsl) / 0.6); background: hsl(var(--primary-hsl) / 0.12); color: var(--primary);
}

/* ---------- Ja/Nein-Auswahl ---------- */
.calc-seg { display: grid; grid-template-columns: 1fr 1fr; gap: 0.6rem; }
.calc-seg label { position: relative; cursor: pointer; }
.calc-seg input { position: absolute; opacity: 0; inset: 0; margin: 0; cursor: pointer; }
.calc-seg span {
	display: block; padding: 0.9rem 1rem; border-radius: 0.75rem; text-align: center;
	border: 1px solid hsl(var(--border-hsl)); background: hsl(var(--bg-hsl) / 0.7);
	font-size: 0.9375rem; font-weight: 500; color: var(--muted-fg);
	transition: all 0.2s;
}
.calc-seg small { display: block; margin-top: 0.15rem; font-size: 0.75rem; font-weight: 400; opacity: 0.85; }
.calc-seg label:hover span { border-color: hsl(var(--primary-hsl) / 0.4); color: var(--fg); }
.calc-seg input:checked + span {
	border-color: var(--primary); background: hsl(var(--primary-hsl) / 0.12); color: var(--fg);
	box-shadow: 0 0 30px -12px hsl(var(--primary-hsl) / 0.8);
}
.calc-seg input:focus-visible + span { outline: 2px solid var(--primary); outline-offset: 2px; }
.calc-note-inline {
	margin: 1rem 0 0; padding: 0.8rem 1rem; border-radius: 0.6rem; font-size: 0.8125rem; line-height: 1.6;
	background: hsl(var(--accent-hsl) / 0.08); border: 1px solid hsl(var(--accent-hsl) / 0.25); color: var(--fg);
}

/* ---------- Ergebnis ---------- */
.calc-sum {
	border-radius: 1.25rem; padding: 1.75rem;
	border: 1px solid hsl(var(--primary-hsl) / 0.35);
	background:
		radial-gradient(120% 80% at 100% 0%, hsl(var(--primary-hsl) / 0.16), transparent 60%),
		hsl(var(--card-hsl) / 0.85);
	box-shadow: 0 30px 80px -40px hsl(var(--primary-hsl) / 0.55);
	-webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
}
@media (min-width: 640px) { .calc-sum { padding: 2rem; } }
@media (min-width: 1024px) { .calc-sum { position: sticky; top: calc(var(--header-h) + 1.5rem); } }

.calc-sum__label { margin: 1.25rem 0 0; font-size: 0.875rem; color: var(--muted-fg); }
.calc-sum__total {
	margin: 0.2rem 0 0; display: flex; flex-wrap: wrap; align-items: baseline; gap: 0.4rem;
	font-family: var(--font-display); font-weight: 700; line-height: 1.05; color: var(--fg);
	font-size: clamp(2.25rem, 6vw, 3rem); font-variant-numeric: tabular-nums;
}
.calc-sum__total small { font-size: 0.9375rem; font-weight: 400; color: var(--muted-fg); font-family: var(--font-body); }
.calc-sum__total .ca { font-size: 1.125rem; font-weight: 500; color: var(--muted-fg); }
.calc-sum__hint {
	margin: 1rem 0 0; padding: 0.7rem 0.9rem; border-radius: 0.6rem; font-size: 0.8125rem; line-height: 1.55;
	background: hsl(var(--accent-hsl) / 0.08); border: 1px solid hsl(var(--accent-hsl) / 0.3); color: var(--fg);
}
.calc-sum__hint[hidden] { display: none; }

.calc-lines { list-style: none; margin: 1.25rem 0 0; padding: 0; }
.calc-lines li {
	display: flex; justify-content: space-between; gap: 1rem; padding: 0.55rem 0;
	font-size: 0.9375rem; color: var(--muted-fg); border-bottom: 1px dashed hsl(var(--border-hsl) / 0.8);
}
.calc-lines li b { font-weight: 500; color: var(--fg); font-variant-numeric: tabular-nums; white-space: nowrap; }
.calc-lines li[hidden] { display: none; }

.calc-once {
	margin-top: 1.5rem; padding: 1.1rem 1.2rem; border-radius: 0.9rem;
	background: hsl(var(--bg-hsl) / 0.65); border: 1px solid hsl(var(--border-hsl));
}
.calc-once__head { margin: 0; font-size: 0.875rem; color: var(--muted-fg); }
.calc-lines--once { margin-top: 0.5rem; }
.calc-lines--once li { font-size: 0.875rem; padding: 0.5rem 0; }
.calc-once__row { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; margin-top: 0.9rem; }
.calc-once__row span { font-weight: 600; color: var(--fg) !important; }

/* ---------- Info-Kasten zum Speicher ---------- */
.calc-info {
	display: flex; gap: 0.85rem; margin-top: 1.25rem; padding: 1rem 1.1rem; border-radius: 0.75rem;
	background: hsl(var(--primary-hsl) / 0.07); border: 1px solid hsl(var(--primary-hsl) / 0.28);
}
.calc-info__icon { flex: none; color: var(--primary); margin-top: 0.1rem; }
.calc-info__icon svg { width: 1.15rem; height: 1.15rem; display: block; }
.calc-info p { margin: 0; font-size: 0.8125rem; line-height: 1.65; color: var(--muted-fg); }
.calc-info strong { color: var(--fg); font-weight: 600; }
.calc-once__row span { font-size: 0.875rem; color: var(--muted-fg); }
.calc-once__row b {
	font-family: var(--font-display); font-size: 1.5rem; font-weight: 600; color: var(--fg);
	font-variant-numeric: tabular-nums; white-space: nowrap;
}
.calc-once p { margin: 0.4rem 0 0; font-size: 0.8125rem; line-height: 1.55; color: var(--muted-fg); }

.calc-year { margin: 1rem 0 0; font-size: 0.8125rem; color: var(--muted-fg); display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; }
.calc-year:not([hidden]) + .calc-year { margin-top: 0.6rem; padding-top: 0.6rem; border-top: 1px dashed hsl(var(--border-hsl) / 0.8); }
.calc-year small { display: block; margin-top: 0.15rem; font-size: 0.75rem; color: hsl(var(--muted-hsl) / 0.8); }
.calc-year b { color: var(--fg); font-weight: 500; font-variant-numeric: tabular-nums; white-space: nowrap; }
.calc-year[hidden] { display: none; }

.calc-sum .btn-primary { margin-top: 1.5rem; width: 100%; justify-content: center; }
.calc-sum__fine { margin: 0.9rem 0 0; font-size: 0.75rem; line-height: 1.6; color: var(--muted-fg); text-align: center; }
.calc-reset {
	appearance: none; border: 0; background: none; padding: 0; margin: 0.75rem auto 0; display: block;
	font-size: 0.8125rem; color: var(--muted-fg); text-decoration: underline; text-underline-offset: 3px; cursor: pointer;
}
.calc-reset:hover { color: var(--primary); }

/* ---------- Mobile Summenleiste ---------- */
.calc-bar {
	position: fixed; z-index: 90; left: 0; right: 0; bottom: 0;
	display: flex; align-items: center; justify-content: space-between; gap: 1rem;
	padding: 0.8rem 1.25rem calc(0.8rem + env(safe-area-inset-bottom));
	background: hsl(var(--bg-hsl) / 0.92); border-top: 1px solid hsl(var(--primary-hsl) / 0.35);
	-webkit-backdrop-filter: blur(16px); backdrop-filter: blur(16px);
	transform: translateY(110%); transition: transform 0.3s ease;
}
.calc-bar.is-visible { transform: none; }
.calc-bar__sum { font-family: var(--font-display); font-weight: 700; font-size: 1.25rem; color: var(--fg); font-variant-numeric: tabular-nums; }
.calc-bar__sum small { display: block; font: 400 0.7rem/1.2 var(--font-body); color: var(--muted-fg); }
.calc-bar a {
	flex: none; padding: 0.6rem 1rem; border-radius: 0.5rem; font-size: 0.875rem; font-weight: 600;
	background: var(--primary); color: var(--primary-fg);
}
@media (min-width: 1024px) { .calc-bar { display: none; } }

/* ---------- Einordnung: privat vs. betrieblich ---------- */
/* Orange = Signalfarbe „bitte zuerst lesen". Türkis bleibt die Farbe der Lösung. */
.calc-why {
	--warn-hsl: 30 96% 60%;
	margin: 0 0 2.5rem; padding: 1.5rem 1.5rem 1.5rem 1.6rem; border-radius: 1.25rem;
	border: 1px solid hsl(var(--warn-hsl) / 0.4); border-left: 4px solid hsl(var(--warn-hsl));
	background:
		radial-gradient(90% 130% at 0% 0%, hsl(var(--warn-hsl) / 0.13), transparent 55%),
		hsl(var(--card-hsl) / 0.7);
	box-shadow: 0 24px 70px -45px hsl(var(--warn-hsl) / 0.7);
	scroll-margin-top: calc(var(--header-h) + 1rem);
}
@media (min-width: 640px) { .calc-why { padding: 2rem 2.25rem 2rem 2.25rem; } }
#rechner { scroll-margin-top: calc(var(--header-h) + 1rem); }

.calc-why__top { display: flex; align-items: flex-start; gap: 1rem; }
.calc-why__icon {
	flex: none; display: grid; place-items: center; width: 2.75rem; height: 2.75rem; border-radius: 0.75rem;
	background: hsl(var(--warn-hsl) / 0.14); border: 1px solid hsl(var(--warn-hsl) / 0.45); color: hsl(var(--warn-hsl));
}
.calc-why__icon svg { width: 1.4rem; height: 1.4rem; }
.calc-why__eyebrow {
	margin: 0; font-family: var(--font-display); font-size: 0.8125rem; font-weight: 600;
	letter-spacing: 0.22em; text-transform: uppercase; color: hsl(var(--warn-hsl));
}
.calc-why h2 { margin: 0.45rem 0 0; max-width: 46rem; font-size: clamp(1.375rem, 2.6vw, 1.75rem); line-height: 1.25; }
.calc-why h2 em { font-style: normal; color: hsl(var(--warn-hsl)); }
.calc-why__lead { margin: 1.25rem 0 0; max-width: 52rem; line-height: 1.7; color: var(--muted-fg); }
.calc-why__lead mark { background: none; color: hsl(var(--warn-hsl)); font-weight: 500; }
.calc-why__close strong { color: hsl(var(--warn-hsl)); font-weight: 600; }
.calc-why__jump {
	display: inline-flex; align-items: center; gap: 0.5rem; margin-top: 1.5rem; padding: 0.7rem 1.15rem;
	border-radius: 0.5rem; border: 1px solid hsl(var(--warn-hsl) / 0.55); color: hsl(var(--warn-hsl));
	font-size: 0.9375rem; font-weight: 600; transition: background 0.2s;
}
.calc-why__jump:hover { background: hsl(var(--warn-hsl) / 0.12); }

/* Auf dem Handy klappen die zwei Vergleichsspalten ein; Titel, Lead, Schlusssatz und Sprunglink bleiben sichtbar. */
.calc-why__toggle {
	display: none; align-items: center; gap: 0.5rem; margin-top: 1.25rem; padding: 0.65rem 1rem;
	border-radius: 0.5rem; border: 1px solid hsl(var(--border-hsl)); background: hsl(var(--bg-hsl) / 0.6);
	color: var(--fg); font: 500 0.9375rem/1 var(--font-body); cursor: pointer;
}
.calc-why__toggle .ic { transition: transform 0.2s; }
.calc-why__toggle[aria-expanded="true"] .ic { transform: rotate(180deg); }
@media (max-width: 799px) {
	.calc-why__toggle { display: inline-flex; }
	.calc-why__grid:not(.is-open) { display: none; }
}
.calc-why__grid { display: grid; gap: 1rem; margin-top: 1.5rem; }
@media (min-width: 800px) { .calc-why__grid { grid-template-columns: 1fr 1fr; gap: 1.5rem; } }
.calc-why__col {
	border-radius: 1rem; padding: 1.5rem;
	border: 1px solid hsl(var(--border-hsl)); background: hsl(var(--bg-hsl) / 0.6);
}
.calc-why__col--pro { border-color: hsl(var(--primary-hsl) / 0.45); background: hsl(var(--primary-hsl) / 0.07); }
.calc-why__col h3 { display: flex; align-items: center; gap: 0.6rem; margin: 0; font-size: 1.0625rem; font-weight: 600; }
.calc-why__col h3 svg { width: 1.25rem; height: 1.25rem; flex: none; color: var(--muted-fg); }
.calc-why__col--pro h3 svg { color: var(--primary); }
.calc-why__col ul { list-style: none; margin: 1rem 0 0; padding: 0; display: grid; gap: 0.6rem; font-size: 0.9375rem; line-height: 1.55; color: var(--muted-fg); }
.calc-why__col li { position: relative; padding-left: 1.1rem; }
.calc-why__col li::before { content: ""; position: absolute; left: 0; top: 0.6em; width: 0.4rem; height: 0.4rem; border-radius: 50%; background: hsl(var(--muted-hsl) / 0.6); }
.calc-why__col--pro li { color: var(--fg); }
.calc-why__col--pro li::before { background: var(--primary); }
.calc-why__foot { margin: 1.1rem 0 0; padding-top: 0.9rem; border-top: 1px dashed hsl(var(--border-hsl)); font-size: 0.8125rem; color: var(--muted-fg); }
.calc-why__close { margin: 1.75rem 0 0; max-width: 46rem; line-height: 1.7; color: var(--fg); }
.calc-whylink {
	display: block; margin-top: 0.9rem; text-align: center; font-size: 0.8125rem;
	color: var(--primary); text-decoration: underline; text-underline-offset: 3px;
}
.calc-sum { scroll-margin-top: calc(var(--header-h) + 1rem); }

/* ---------- Enthalten + Hinweise ---------- */
.calc-below { display: grid; gap: 1.5rem; margin-top: 3rem; }
@media (min-width: 900px) { .calc-below { grid-template-columns: 1fr 1fr; gap: 2rem; } }
.calc-legal { font-size: 0.8125rem; line-height: 1.7; color: var(--muted-fg); }
.calc-legal p { margin: 0 0 0.75rem; }
.calc-legal strong { color: var(--fg); font-weight: 600; }

@media (prefers-reduced-motion: reduce) {
	.calc-reveal, .calc-switch__track::after, .calc-bar { transition: none; }
}