/* Rennack Blechkalkulator – angelehnt an den bisherigen Kalkulator-Look. Schrift kommt vom Theme. */
.rbk {
	--rbk-ink: #0f1d33;
	--rbk-muted: #7a8190;
	--rbk-line: #e6e8ec;
	--rbk-field: #f5f6f8;
	--rbk-accent: #c0292a;
	--rbk-selected: #3fae49;
	--rbk-radius: 8px;
	color: var(--rbk-ink);
}
.rbk *, .rbk *::before, .rbk *::after { box-sizing: border-box; }
.rbk-grid { display: grid; grid-template-columns: minmax(0, 1.7fr) minmax(280px, 1fr); gap: 32px; align-items: start; }
.rbk-form { min-width: 0; }

/* Abschnitte */
.rbk-step { border: 1px solid var(--rbk-line); border-radius: var(--rbk-radius); padding: 24px; margin: 0 0 20px; background: #fff; }
.rbk-step-title { display: flex; align-items: center; gap: 12px; font-size: 1.15em; margin: 0 0 20px; color: var(--rbk-ink); }
.rbk-step-nr { display: inline-grid; place-items: center; width: 28px; height: 28px; border-radius: 50%; background: var(--rbk-ink); color: #fff; font-size: .8em; flex: none; }

/* Felder */
.rbk-field { margin: 0 0 18px; }
.rbk-field[hidden] { display: none; }
.rbk-label { display: block; font-weight: 600; margin: 0 0 8px; }
.rbk-req { color: var(--rbk-accent); }
.rbk-hint { display: block; color: var(--rbk-muted); font-size: .9em; margin: 6px 0 0; }
.rbk input[type=number], .rbk textarea {
	width: 100%; padding: 12px 14px; border: 0; border-bottom: 1px solid var(--rbk-line);
	background: var(--rbk-field); border-radius: 4px 4px 0 0; font: inherit; color: inherit;
}
.rbk input[type=number]:focus, .rbk textarea:focus { outline: 2px solid var(--rbk-ink); outline-offset: 1px; }
.rbk-dims { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 0 20px; }
.rbk-link { display: inline-block; margin-top: 4px; font-size: .9em; text-transform: uppercase; letter-spacing: .12em; color: var(--rbk-muted); }

/* Auswahlkacheln */
.rbk-sr { position: absolute; opacity: 0; width: 1px; height: 1px; pointer-events: none; }
.rbk-cards { display: grid; gap: 12px; }
.rbk-cards--material { grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); margin-bottom: 18px; }
.rbk-cards--image { grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); }
.rbk-cards--pill, .rbk-cards--text { display: flex; flex-wrap: wrap; gap: 8px; }
.rbk-card {
	position: relative; display: flex; flex-direction: column; gap: 6px; cursor: pointer;
	border: 2px solid var(--rbk-line); border-radius: var(--rbk-radius); padding: 10px; background: #fff;
	transition: border-color .15s, box-shadow .15s; font-weight: 500;
}
.rbk-card:hover { border-color: #c9ced6; }
.rbk-card img { width: 100%; aspect-ratio: 1 / 1; object-fit: contain; background: var(--rbk-field); border-radius: 4px; }
.rbk-cards--material .rbk-card img { aspect-ratio: 4 / 3; object-fit: cover; }
.rbk-cards--material .rbk-card-title { font-size: .85em; line-height: 1.3; overflow-wrap: anywhere; hyphens: auto; }
.rbk-card-sub { color: var(--rbk-muted); font-size: .85em; }
.rbk-cards--pill .rbk-card { flex-direction: row; padding: 8px 16px; border-radius: 999px; }
.rbk-card:has(.rbk-sr:checked) { border-color: var(--rbk-selected); box-shadow: 0 0 0 1px var(--rbk-selected); }
.rbk-card:has(.rbk-sr:checked)::after {
	content: ""; position: absolute; right: 10px; bottom: 10px; width: 18px; height: 18px; border-radius: 3px;
	background: var(--rbk-selected) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='none' stroke='white' stroke-width='2.5' d='M3.5 8.5l3 3 6-7'/%3E%3C/svg%3E") center / 12px no-repeat;
}
.rbk-cards--pill .rbk-card:has(.rbk-sr:checked)::after { display: none; }
.rbk-cards--pill .rbk-card:has(.rbk-sr:checked) { background: #eef8ef; }
.rbk-card:has(.rbk-sr:focus-visible) { outline: 2px solid var(--rbk-ink); outline-offset: 2px; }

/* Berechnung */
.rbk-result { position: sticky; top: 24px; border: 1px solid var(--rbk-line); border-radius: var(--rbk-radius); padding: 24px; background: #fff; }
.rbk-result h3 { margin: 0 0 16px; font-size: 1.3em; }
.rbk-result dl { display: grid; grid-template-columns: auto 1fr; margin: 0 0 16px; }
.rbk-result dt, .rbk-result dd { padding: 10px 0; border-bottom: 1px dashed var(--rbk-line); margin: 0; }
.rbk-result dd { text-align: right; }
.rbk-price { display: flex; justify-content: space-between; align-items: baseline; gap: 12px; font-size: 1.35em; font-weight: 700; margin: 0; }
.rbk-btn {
	display: block; width: 100%; margin-top: 20px; padding: 16px; border: 0; border-radius: 4px; cursor: pointer;
	background: var(--rbk-accent); color: #fff; font: inherit; font-weight: 600; text-align: center;
	text-transform: uppercase; letter-spacing: .18em; text-decoration: none;
}
.rbk-btn:hover { filter: brightness(.92); color: #fff; }
.rbk-btn[disabled] { opacity: .45; cursor: not-allowed; filter: none; }
.rbk-btn--alt { background: var(--rbk-ink); }
.rbk-errors { color: #b00020; margin: 0; padding-left: 18px; }
.rbk-anfrage { color: #8a5a00; }
.rbk-todo { color: var(--rbk-accent); }
.rbk-minimum { background: #fff7e6; border-left: 3px solid #e0a100; padding: 10px 12px; margin: 14px 0 0; font-size: .9em; border-radius: 0 4px 4px 0; }
.rbk-added { color: #1e7b34; margin-top: 12px; }

@media (max-width: 900px) {
	.rbk-grid { grid-template-columns: 1fr; }
	.rbk-result { position: static; }
	.rbk-step { padding: 18px; }
}

.rbk-extra { margin-top: 12px; padding-top: 12px; border-top: 1px solid rgba(0,0,0,.08); }
.rbk-extra-btns { display: flex; gap: 8px; flex-wrap: wrap; }
.rbk-btn--ghost { background: transparent !important; color: #c0292a !important; border: 1px solid #c0292a !important; flex: 1 1 auto; text-align: center; }
.rbk-btn--ghost:disabled { opacity: .45; }
.rbk-save-name { width: 100%; margin-bottom: 8px; padding: 8px 10px; border: 1px solid #d0d0d0; border-radius: 4px; font: inherit; }
.rbk-save-msg { margin: 8px 0 0; font-size: .9em; }
/* Merkliste im Kundenkonto */
.rbk-ml-item { border: 1px solid #e3e3e3; border-radius: 6px; padding: 14px 16px; margin: 0 0 14px; background: #fff; }
.rbk-ml-name { display: flex; gap: 8px; align-items: center; }
.rbk-ml-name input { flex: 1; font-weight: 600; font-size: 1.05em; border: 1px solid transparent; padding: 4px 6px; background: transparent; }
.rbk-ml-name input:hover, .rbk-ml-name input:focus { border-color: #d0d0d0; background: #fff; }
.rbk-ml-meta { margin: 2px 0 8px; font-size: .85em; color: #777; }
.rbk-ml-dl { display: grid; grid-template-columns: max-content 1fr; gap: 2px 14px; margin: 0 0 8px; font-size: .92em; }
.rbk-ml-dl dt { color: #666; } .rbk-ml-dl dd { margin: 0; }
.rbk-ml-price { margin: 6px 0; }
.rbk-ml-note { color: #8a2424; }
.rbk-ml-actions { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.rbk-ml-actions form { margin: 0; }
.rbk-ml-small { font-size: .85em !important; }