/* ==========================================================================
   Lampen1A Baumkonfigurator – eigenständiges Stylesheet
   --------------------------------------------------------------------------
   Breites Planungstool-Layout: Hauptbereich links (~76 %) + sticky
   Seitenleiste rechts (~24 %, Fortschritt + Navigation). Ruhig, hochwertig,
   modern, klar, mobilfreundlich. Kein kopiertes Fremddesign.

   Alle Stile sind unter #tc-configurator / Präfix .tc- gekapselt. Farben/Maße
   liegen zentral als CSS-Variablen vor und sind an das Lampen1A-Theme angelehnt.
   ========================================================================== */

.tc-configurator {
    /* Theme-Variablen (an Lampen1A angelehnt, hier zentral änderbar) */
    --tc-accent: #057191;          /* Primärfarbe Lampen1A */
    --tc-accent-dark: #04576f;
    --tc-accent-soft: #e6f1f4;
    --tc-text: #16242a;            /* kräftiger, dunkler */
    --tc-text-strong: #0f1b21;
    --tc-text-muted: #4a5961;      /* kontrastreicher als zuvor */
    --tc-bg: #ffffff;
    --tc-bg-soft: #f3f6f7;
    --tc-border: #dbe1e4;
    --tc-radius: 0.4rem;           /* Shop-Radius (.btn/.alert = 0.4rem) */
    --tc-shadow: 0 2px 10px rgba(5, 113, 145, 0.07);
    --tc-side: 280px;              /* Breite der Seitenleiste (Desktop) */
    --tc-card-img-h: clamp(280px, 23vw, 320px); /* Bildhöhe der Karten (Desktop-Ziel 280–320px) */

    max-width: 1340px;
    margin: 1.25rem auto 2rem;
    padding: 0 1rem;
    color: var(--tc-text);
    font-family: "Barlow", "Helvetica", sans-serif;
    line-height: 1.5;
}

/* Defensive Resets: die semantischen Elemente (header/main/aside/nav) dürfen
   keine Theme-Hintergründe/Paddings erben (sonst entstehen leere Flächen). */
.tc-header,
.tc-main,
.tc-sidebar,
.tc-progress,
.tc-nav {
    background: transparent;
    border: 0;
    box-shadow: none;
    padding: 0;
    margin: 0;
    min-height: 0;
    height: auto;
}

/* --- Kompakter Kopfbereich ----------------------------------------------- */
.tc-header {
    margin: 0 0 1.1rem;
}
.tc-title {
    font-size: clamp(1.35rem, 2.2vw, 1.85rem);
    font-weight: 700;
    margin: 0 0 0.25rem;
    color: var(--tc-text-strong);
    line-height: 1.2;
}
.tc-subtitle {
    margin: 0;
    max-width: 780px;
    color: var(--tc-text-muted);
    font-size: 1rem;
}

/* --- Breites Layout: Hauptbereich + Seitenleiste ------------------------- */
.tc-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) var(--tc-side);
    gap: 1.75rem;
    align-items: start;
}
.tc-main {
    min-width: 0;
}
.tc-sidebar {
    position: sticky;
    top: 1rem;
    align-self: start;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

/* --- Fortschrittsanzeige (vertikal in der Seitenleiste) ------------------ */
.tc-progress-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.15rem;
}
.tc-progress-item {
    position: relative;
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.5rem 0.6rem;
    border-radius: 0.4rem;
    font-size: 0.95rem;
    color: var(--tc-text-muted);
}
/* Verbindungslinie zwischen den Punkten (Schritt-Logik sichtbar). */
.tc-progress-item:not(:last-child)::before {
    content: "";
    position: absolute;
    left: 1.45rem;
    top: 2.25rem;
    bottom: -0.15rem;
    width: 2px;
    background: var(--tc-border);
}
.tc-progress-item.is-done:not(:last-child)::before {
    background: var(--tc-accent);
}
.tc-progress-dot {
    flex: 0 0 auto;
    width: 1.7rem;
    height: 1.7rem;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--tc-bg);
    border: 2px solid var(--tc-border);
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--tc-text-muted);
    transition: 0.2s;
    z-index: 1;
}
.tc-progress-label {
    line-height: 1.2;
}
.tc-progress-item.is-active {
    background: var(--tc-accent-soft);
    color: var(--tc-text-strong);
    font-weight: 600;
}
.tc-progress-item.is-active .tc-progress-dot {
    background: var(--tc-accent);
    border-color: var(--tc-accent);
    color: #fff;
}
.tc-progress-item.is-done .tc-progress-dot {
    background: var(--tc-accent);
    border-color: var(--tc-accent);
    color: #fff;
}
.tc-progress-item.is-done {
    color: var(--tc-text);
}

/* --- Navigation (Seitenleiste, volle Breite) ---------------------------- */
.tc-nav {
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
}
.tc-nav .btn {
    width: 100%;
    white-space: normal;
}
.tc-nav .tc-next { order: 1; }   /* Weiter oben, klarer Primärbutton */
.tc-nav .tc-back { order: 2; }   /* Zurück darunter, dezenter */

/* --- Schritte ------------------------------------------------------------ */
.tc-step-title {
    font-size: clamp(1.2rem, 1.8vw, 1.45rem);
    font-weight: 700;
    margin: 0 0 0.35rem;
    color: var(--tc-text-strong);
}
.tc-step-desc {
    margin: 0 0 1.1rem;
    color: var(--tc-text-muted);
    font-size: 0.96rem;
}
/* Kompakter Erklärtext UNTER den Auswahlkarten (Dekoration/Variante).
   Ersetzt auf diesen Schritten die ausgeblendeten Landingpage-Texte. */
.tc-step-footnote {
    margin: 1.1rem 0 0;
    color: var(--tc-text-muted);
    font-size: 0.96rem;
    line-height: 1.55;
    max-width: 70ch;
}

/* --- Auswahlkarten (kompakt) -------------------------------------------- */
.tc-cards {
    display: grid;
    /* Desktop: bis zu vier kompakte Karten je Reihe (Tablet/Smartphone via
       Media-Queries auf 2 bzw. 1 reduziert). */
    grid-template-columns: repeat(auto-fit, minmax(205px, 1fr));
    gap: 1rem;
}
.tc-card {
    position: relative;
    display: flex;
    flex-direction: column;
    padding: 0;
    overflow: hidden;
    background: var(--tc-bg);
    border: 2px solid var(--tc-border);
    border-radius: var(--tc-radius);
    cursor: pointer;
    text-align: left;
    transition: border-color 0.2s, box-shadow 0.2s, transform 0.1s;
}
.tc-card:hover {
    border-color: var(--tc-accent);
    box-shadow: var(--tc-shadow);
}
.tc-card:focus-visible {
    outline: 3px solid var(--tc-accent);
    outline-offset: 2px;
}
.tc-card.is-selected {
    border-color: var(--tc-accent);
    box-shadow: 0 0 0 2px var(--tc-accent), var(--tc-shadow);
}
.tc-card.is-selected::after {
    content: "\2713";
    position: absolute;
    top: 0.6rem;
    right: 0.6rem;
    width: 1.7rem;
    height: 1.7rem;
    border-radius: 50%;
    background: var(--tc-accent);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.95rem;
    font-weight: 700;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.25);
    z-index: 2;
}

/* Bildbereich der Karte: feste, einheitliche Höhe je Schritt. */
.tc-card-media {
    display: block;
    width: 100%;
    height: var(--tc-card-img-h);
    background: #0f1b2d;             /* Nachthimmel-Ton, blendet mit Motiven */
    overflow: hidden;
}
.tc-card-img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;              /* 4:3-Motiv füllt die Karte ohne blaue Seitenränder */
    object-position: center;
}
.tc-card-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: var(--tc-card-img-h);
    background: #0f1b2d;
    color: #fff;
    font-size: 3rem;
}
.tc-card-body {
    display: block;
    padding: 0.7rem 0.85rem 0.9rem;
}
.tc-card-title {
    display: block;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--tc-text-strong);
    margin: 0 0 0.2rem;
}
.tc-card-text {
    display: -webkit-box;
    -webkit-line-clamp: 2;          /* höchstens zwei sichtbare Zeilen */
    -webkit-box-orient: vertical;
    overflow: hidden;
    font-size: 0.88rem;
    line-height: 1.35;
    color: var(--tc-text-muted);
    margin: 0;
}

/* --- Variantenkarten: echtes 4:3 statt fester Bildhöhe -------------------
   Greift im Schritt „Variante" für Laub- UND Nadelbaum (Container-Klasse
   tc-variant-grid). Die globale Bilddarstellung der übrigen Karten
   (Baumtyp, Dekoration) bleibt unverändert.
   Ursache des bisherigen starken Zuschnitts: die feste/clamp-Bildhöhe
   (--tc-card-img-h) führte bei breiten Karten zu einer flachen Bildfläche,
   sodass object-fit:cover nur den mittleren Ausschnitt zeigte. */
.tc-variant-grid .tc-card-media {
    width: 100%;
    aspect-ratio: 4 / 3;            /* echtes Verhältnis der 1200×900-Bilder */
    height: auto;                   /* feste/clamp-Höhe für diese Karten aufheben */
    overflow: hidden;
}
.tc-variant-grid .tc-card-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
}
/* Icon-Fallback (falls kein Bild) ebenfalls auf 4:3 halten. */
.tc-variant-grid .tc-card-icon {
    height: auto;
    aspect-ratio: 4 / 3;
}

/* Kartenbreite abhängig von der Anzahl der Varianten. */
.tc-variant-grid.tc-card-count-1 {
    grid-template-columns: minmax(0, 620px);   /* Einzelkarte nicht über volle Breite */
    justify-content: center;                   /* horizontal zentrieren */
}
.tc-variant-grid.tc-card-count-2 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
}
.tc-variant-grid.tc-card-count-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

/* --- Größenansicht (feste Bühne, freigestellter Baum, vertikaler Regler) - */
.tc-size {
    margin: 0 0 0.9rem;
}
.tc-size-board {
    display: flex;
    gap: 1rem;
    height: clamp(380px, 50vh, 500px);
    padding: 1rem 1rem 0.75rem;
    background: linear-gradient(180deg, #f8fbfc 0%, #eef4f6 100%);
    border: 1px solid var(--tc-border);
    border-radius: var(--tc-radius);
}
.tc-size-canvas {
    position: relative;
    flex: 1 1 auto;
    min-width: 0;
}
/* Szene = nutzbare Höhe über der Bodenlinie; Baum/Person beziehen ihre Höhe
   hierauf. Beide stehen an der festen Bodenlinie – nur die Höhe ändert sich. */
.tc-size-scene {
    position: absolute;
    left: 0;
    right: 0;
    top: 3%;
    bottom: 13%;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    gap: clamp(6%, 8%, 12%);
}
.tc-size-ground {
    position: absolute;
    left: 5%;
    right: 5%;
    bottom: 13%;
    border-top: 2px solid rgba(5, 113, 145, 0.28);
}
.tc-size-tree {
    height: 50%;
    display: flex;
    align-items: flex-end;
    transition: height 0.3s ease;
}
.tc-size-tree svg {
    height: 100%;
    width: auto;
    display: block;
}
.tc-size-person {
    position: relative;
    height: 12%;
    display: flex;
    align-items: flex-end;
}
.tc-size-person svg {
    height: 100%;
    width: auto;
    display: block;
    fill: #6a7880;
}
.tc-size-personlabel {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    margin-bottom: 0.2rem;
    font-size: 0.7rem;
    color: var(--tc-text-muted);
    white-space: nowrap;
}

/* Vertikaler Höhenregler (eigenständig, voll tastaturbedienbar). */
.tc-size-sliderwrap {
    flex: 0 0 auto;
    width: 90px;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.tc-size-readout {
    margin-bottom: 0.5rem;
    text-align: center;
    line-height: 1;
}
.tc-size-readout strong {
    font-size: 1.55rem;
    font-weight: 700;
    color: var(--tc-accent);
}
.tc-size-readout span {
    margin-left: 0.15rem;
    color: var(--tc-text-muted);
    font-weight: 600;
}
.tc-vslider {
    position: relative;
    flex: 1 1 auto;
    width: 100%;
    display: flex;
    justify-content: center;
    padding: 0.6rem 0;
    cursor: pointer;
    outline: none;
    touch-action: none;
}
.tc-vslider:focus-visible {
    outline: 3px solid var(--tc-accent);
    outline-offset: 3px;
    border-radius: 0.5rem;
}
.tc-vslider-scale {
    position: absolute;
    right: calc(50% + 0.9rem);
    top: 0.6rem;
    bottom: 0.6rem;
    width: 2.6rem;
}
.tc-vslider-mark {
    position: absolute;
    right: 0;
    transform: translateY(50%);
    font-size: 0.72rem;
    color: var(--tc-text-muted);
    white-space: nowrap;
}
.tc-vslider-track {
    position: relative;
    width: 8px;
    height: 100%;
    background: #d2dee2;
    border-radius: 999px;
}
.tc-vslider-fill {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    height: 0;
    background: var(--tc-accent);
    border-radius: 999px;
}
.tc-vslider-thumb {
    position: absolute;
    left: 50%;
    bottom: 0;
    width: 26px;
    height: 26px;
    transform: translate(-50%, 50%);
    background: #fff;
    border: 3px solid var(--tc-accent);
    border-radius: 50%;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.2);
    cursor: grab;
}
.tc-vslider:active .tc-vslider-thumb { cursor: grabbing; }

/* Optionale Felder unter der Bühne (Höhe + Anzahl). */
.tc-size-extra {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem 1.5rem;
    margin-top: 0.5rem;
}
.tc-field-inline {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}
.tc-field-inline .tc-label {
    margin: 0;
    font-weight: 600;
    white-space: nowrap;
}
.tc-label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.4rem;
}
.tc-input-number {
    -moz-appearance: textfield;
    width: 5rem;
    padding: 0.5rem 0.6rem;
    border: 1px solid var(--tc-border);
    border-radius: 0.4rem;
    font-size: 1rem;
    font-family: inherit;
}
.tc-input-number:focus {
    outline: 2px solid var(--tc-accent-soft);
    border-color: var(--tc-accent);
}

/* --- Ergebnis / Empfehlung ---------------------------------------------- */
.tc-result-intro {
    color: var(--tc-text-muted);
    margin: 0 0 1.25rem;
    max-width: 760px;
}

/* --- Hinweise / Meldungen ------------------------------------------------ */
.tc-note {
    margin-top: 1.25rem;
    padding: 1rem 1.25rem;
    border-radius: var(--tc-radius);
    background: var(--tc-accent-soft);
    color: var(--tc-accent-dark);
    font-size: 0.95rem;
}
.tc-message {
    margin-top: 1.5rem;
    padding: 1rem 1.25rem;
    border-radius: var(--tc-radius);
    font-size: 0.95rem;
}
.tc-message.is-error { background: #fdecec; color: #9b2c2c; }
.tc-message.is-success { background: #e8f5ec; color: #226c3d; }
.tc-message.is-info { background: #eef4fb; color: #234b78; }

/* --- Status-Badges (echt / simuliert / fehlt) ---------------------------- */
.tc-badge {
    display: inline-block;
    margin-left: 0.4rem;
    padding: 0.1rem 0.5rem;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.02em;
    vertical-align: middle;
}
.tc-badge-sim { background: #fff3d6; color: #8a5a00; border: 1px solid #f0d79a; }
.tc-badge-fehlt { background: #fdecec; color: #9b2c2c; border: 1px solid #f0bcbc; }
.tc-row-sim { background: #fffaf0; }

/* --- Empfehlung: gruppierte Produktliste mit Bildern (kompakt) ----------- */
.tc-prodgroups { margin-top: 0.25rem; }
.tc-prodgroup { margin-bottom: 1.5rem; }
.tc-prodgroup-title {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--tc-accent-dark);
    margin: 0 0 0.6rem;
    padding-bottom: 0.3rem;
    border-bottom: 2px solid var(--tc-accent-soft);
}
.tc-prodlist {
    list-style: none;
    margin: 0;
    padding: 0;
    /* Mehrere Produkte nebeneinander, sofern lesbar; einzelne füllen die Zeile. */
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 0.6rem;
}
.tc-prod {
    display: flex;
    align-items: center;
    gap: 0.85rem;
    padding: 0.6rem 0.7rem;
    border: 1px solid var(--tc-border);
    border-radius: var(--tc-radius);
    background: var(--tc-bg);
}
.tc-prod-sim { background: #fffaf0; border-color: #f0d79a; }
.tc-prod-media {
    flex: 0 0 auto;
    width: 64px;
    height: 64px;
    display: block;
    border-radius: 0.4rem;
    overflow: hidden;
    background: var(--tc-bg-soft);
}
.tc-prod-img { width: 64px; height: 64px; object-fit: contain; display: block; }
.tc-prod-img-ph { object-fit: cover; opacity: 0.9; }
.tc-prod-info { flex: 1 1 auto; min-width: 0; }
.tc-prod-head { display: flex; flex-wrap: wrap; align-items: center; gap: 0.25rem; }
.tc-prod-name {
    font-weight: 600;
    color: var(--tc-accent-dark);
    text-decoration: none;
    overflow-wrap: anywhere;
}
a.tc-prod-name:hover { text-decoration: underline; }
.tc-prod-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 0.2rem 0.7rem;
    font-size: 0.82rem;
    color: var(--tc-text-muted);
    margin-top: 0.15rem;
}
.tc-prod-nr { font-family: monospace; }
.tc-prod-price { font-size: 0.9rem; margin-top: 0.25rem; }
.tc-prod-noimg { font-size: 0.8rem; color: var(--tc-text-muted); margin-top: 0.25rem; font-style: italic; }
.tc-prod-menge { flex: 0 0 auto; font-weight: 700; font-size: 1.05rem; color: var(--tc-text); white-space: nowrap; }
.tc-prod-media:focus-visible,
.tc-prod-name:focus-visible { outline: 3px solid var(--tc-accent); outline-offset: 2px; }

/* --- Ergebnis-Aktionen (Toolbar mit mehreren .btn) ----------------------- */
.tc-cart-toolbar {
    margin-top: 1.5rem;
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
}
.tc-action-btn { white-space: normal; }
.tc-feature-area { margin-top: 1.25rem; }
.tc-feature-area:empty { margin-top: 0; }
.tc-cart-actions {
    margin-top: 1.5rem;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

/* --- Stücklistentabelle: mobil horizontal scrollbar (keine Überbreite) --- */
.tc-table-wrap {
    width: 100%;
    max-width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}
.tc-table { width: 100%; border-collapse: collapse; }
.tc-table td, .tc-table th { overflow-wrap: anywhere; word-break: break-word; }
.tc-montage-list li,
.tc-montage-steps li,
.tc-montage-notes li,
.tc-sim-list li { overflow-wrap: anywhere; }

/* --- Simulierter Warenkorb (Vorschau) ------------------------------------ */
.tc-sim-cart {
    margin-top: 1.25rem;
    padding: 1.1rem 1.25rem;
    border: 1px dashed #d6b15a;
    border-radius: var(--tc-radius);
    background: #fffdf6;
    text-align: left;
}
.tc-sim-title { margin: 0 0 0.6rem; font-size: 1.05rem; color: #8a5a00; }
.tc-sim-list { margin: 0 0 0.6rem; padding-left: 1.2rem; }
.tc-sim-list li { margin: 0.2rem 0; }

/* --- Hint ---------------------------------------------------------------- */
.tc-hint {
    margin: 0.5rem 0 0;
    font-size: 0.9rem;
    color: var(--tc-text-muted);
}

/* --- Montageplan --------------------------------------------------------- */
.tc-montageplan {
    border: 1px solid var(--tc-border);
    border-radius: var(--tc-radius);
    background: var(--tc-bg);
    padding: 1.25rem 1.5rem;
    box-shadow: var(--tc-shadow);
}
.tc-montage-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin: 0 0 1rem;
    color: var(--tc-accent-dark);
}
.tc-montage-subtitle {
    font-size: 1.05rem;
    font-weight: 700;
    margin: 1.25rem 0 0.5rem;
    color: var(--tc-text);
}
.tc-kv {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.35rem 1.5rem;
}
.tc-kv li { display: flex; flex-wrap: wrap; gap: 0.25rem 0.5rem; font-size: 0.95rem; }
.tc-k { color: var(--tc-text-muted); min-width: 7.5rem; }
.tc-v { font-weight: 600; min-width: 0; overflow-wrap: anywhere; }
.tc-montage-group { margin: 0.5rem 0 0.75rem; }
.tc-montage-group-label { font-weight: 700; margin-bottom: 0.25rem; }
.tc-montage-list { margin: 0 0 0.5rem 1.1rem; padding: 0; }
.tc-montage-list li { margin: 0.15rem 0; }
.tc-montage-menge { font-weight: 700; }
.tc-montage-artnr { font-family: monospace; color: var(--tc-text-muted); }
.tc-montage-steps { margin: 0 0 0.5rem 1.2rem; padding: 0; }
.tc-montage-steps li { margin: 0.25rem 0; }
.tc-montage-notes { margin: 0 0 0.5rem 1.1rem; padding: 0; }
.tc-montage-notes li { margin: 0.2rem 0; color: var(--tc-text); }
.tc-montage-aufwand { margin-top: 1rem; }
.tc-montage-disclaimer {
    margin-top: 0.75rem;
    font-size: 0.85rem;
    color: var(--tc-text-muted);
    border-top: 1px solid var(--tc-border);
    padding-top: 0.75rem;
}
.tc-montage-actions { margin-top: 1rem; }

/* --- Anfrageformular ----------------------------------------------------- */
.tc-form-wrap {
    border: 1px solid var(--tc-border);
    border-radius: var(--tc-radius);
    background: var(--tc-bg);
    padding: 1.25rem 1.5rem;
    box-shadow: var(--tc-shadow);
}
.tc-form-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin: 0 0 0.35rem;
    color: var(--tc-accent-dark);
}
.tc-form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem 1rem;
}
.tc-form-row { margin-top: 0.25rem; }
.tc-field-group { margin-bottom: 0.75rem; display: flex; flex-direction: column; }
.tc-form-label {
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
    color: var(--tc-text);
}
.tc-form .form-control,
.tc-form .custom-select { width: 100%; font-family: inherit; }
.tc-form-check { margin: 0.5rem 0; font-size: 0.95rem; }
.tc-form-check label { display: flex; gap: 0.5rem; align-items: flex-start; cursor: pointer; }
.tc-form-check input { margin-top: 0.25rem; }
.tc-form-actions { margin-top: 1rem; }
.tc-error-list { margin: 0; padding-left: 1.2rem; }

/* --- Einstiegs-Banner ("Hero") ------------------------------------------ */
.tc-entry {
    --tc-accent: #057191;
    --tc-accent-dark: #04576f;
    --tc-radius: 0.8rem;
    font-family: "Barlow", "Helvetica", sans-serif;
    margin: 1.5rem 0;
}
.tc-entry-inner {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 1.25rem;
    justify-content: space-between;
    padding: 1.75rem 2rem;
    background: linear-gradient(135deg, #f4fafb 0%, #e6f1f4 100%);
    border: 1px solid #d4e6ec;
    border-radius: var(--tc-radius);
}
.tc-entry-title {
    font-size: 1.35rem;
    font-weight: 700;
    margin: 0 0 0.4rem;
    color: var(--tc-accent-dark);
}
.tc-entry-subtitle { margin: 0; max-width: 560px; color: #38535c; font-size: 0.98rem; }
.tc-entry-btn { white-space: nowrap; text-decoration: none; display: inline-block; }

/* ==========================================================================
   Responsive
   ========================================================================== */

/* Tablet & Smartphone: Layout stapeln. Die Seitenleiste löst sich auf
   (display:contents), Fortschritt rückt über den Inhalt, Navigation darunter. */
@media (max-width: 991px) {
    .tc-layout {
        display: flex;
        flex-direction: column;
        gap: 1rem;
    }
    .tc-sidebar { display: contents; }
    .tc-progress { order: -1; }
    .tc-main { order: 0; }
    .tc-nav { order: 1; margin-top: 0.25rem; flex-direction: row; }
    .tc-nav .btn { flex: 1 1 0; }
    .tc-nav .tc-back { order: 0; }   /* Zurück links, Weiter rechts */
    .tc-nav .tc-next { order: 1; }

    /* Fortschritt horizontal & kompakt, ohne Überbreite. */
    .tc-progress-list {
        flex-direction: row;
        flex-wrap: nowrap;
        overflow-x: auto;
        gap: 0.15rem;
        padding-bottom: 0.25rem;
        -webkit-overflow-scrolling: touch;
    }
    .tc-progress-item {
        flex: 0 0 auto;
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 0.25rem;
        padding: 0.35rem 0.5rem;
        font-size: 0.8rem;
    }
    .tc-progress-item:not(:last-child)::before { display: none; }

    /* Tablet: zwei Karten je Reihe. */
    .tc-cards { grid-template-columns: repeat(2, 1fr); }
    .tc-prodlist { grid-template-columns: 1fr; }

    /* Variantenkarten: drei Spalten brechen auf zwei um.
       (Eigene Regel nötig, da die Doppelklasse höhere Spezifität hat.) */
    .tc-variant-grid.tc-card-count-2,
    .tc-variant-grid.tc-card-count-3 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 560px) {
    .tc-title { font-size: 1.35rem; }
    /* Smartphone: eine Karte je Reihe. */
    .tc-cards { grid-template-columns: 1fr; }
    /* Variantenkarten: alle Anordnungen einspaltig untereinander. */
    .tc-variant-grid.tc-card-count-1,
    .tc-variant-grid.tc-card-count-2,
    .tc-variant-grid.tc-card-count-3 {
        grid-template-columns: 1fr;
        justify-content: stretch;
    }
    .tc-kv { grid-template-columns: 1fr; }
    .tc-form-grid { grid-template-columns: 1fr; }
    .tc-cart-toolbar { flex-direction: column; }
    .tc-cart-toolbar .btn { width: 100%; }
    .tc-prod { flex-wrap: wrap; }
    .tc-prod-menge { margin-left: auto; }
    .tc-size-board { height: clamp(360px, 70vw, 460px); padding: 0.85rem 0.85rem 0.6rem; }
    .tc-size-sliderwrap { width: 76px; }
    .tc-size-readout strong { font-size: 1.3rem; }
}

/* ==========================================================================
   SEO-LANDINGPAGE (Präfix .tc-lp-)
   --------------------------------------------------------------------------
   Eigenständiger Geschwister-Block des Konfigurators. Erbt dessen CSS-
   Variablen NICHT, daher hier neu definiert (an Lampen1A-Theme angelehnt).
   Alle Regeln sind unter .tc-lp gekapselt -> keine Beeinträchtigung
   bestehender Shop- oder Konfigurator-Styles. Buttons nutzen die Shop-
   Klasse .btn.btn-primary; .tc-lp-cta-btn ergänzt nur sanft.
   ========================================================================== */
.tc-lp {
    --tc-accent: #057191;
    --tc-accent-dark: #04576f;
    --tc-accent-soft: #e6f1f4;
    --tc-text: #16242a;
    --tc-text-strong: #0f1b21;
    --tc-text-muted: #4a5961;
    --tc-border: #dbe1e4;
    --tc-bg-soft: #f3f6f7;
    --tc-radius: 0.4rem;
    --tc-shadow: 0 2px 10px rgba(5, 113, 145, 0.07);

    max-width: 1340px;
    margin: 1.25rem auto;
    padding: 0 1rem;
    color: var(--tc-text);
    font-family: "Barlow", "Helvetica", sans-serif;
    line-height: 1.6;
}
.tc-lp p { margin: 0 0 0.85rem; max-width: 70ch; }
.tc-lp strong { color: var(--tc-text-strong); }

/* Konfigurator als Ankerziel optisch hervorheben + Sticky-Header-Offset. */
.tc-configurator { scroll-margin-top: 90px; }

/* --- Überschriften ------------------------------------------------------- */
.tc-lp-h2 {
    font-size: clamp(1.4rem, 2.4vw, 1.95rem);
    font-weight: 700;
    color: var(--tc-text-strong);
    margin: 0 0 0.75rem;
    line-height: 1.25;
}
.tc-lp-h3 {
    font-size: 1.08rem;
    font-weight: 700;
    color: var(--tc-accent-dark);
    margin: 0 0 0.35rem;
}

/* --- Hero ---------------------------------------------------------------- */
.tc-lp-hero {
    background: linear-gradient(135deg, #f4fafb 0%, var(--tc-accent-soft) 100%);
    border: 1px solid #d4e6ec;
    border-radius: var(--tc-radius);
    padding: clamp(1.5rem, 4vw, 2.75rem);
}
.tc-lp-hero-inner { max-width: 1000px; }
.tc-lp-eyebrow {
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--tc-accent-dark);
    margin: 0 0 0.6rem;
}
.tc-lp-lead {
    font-size: clamp(1.05rem, 1.8vw, 1.3rem);
    color: var(--tc-text);
    max-width: 60ch;
    margin: 0 0 1.25rem;
}
.tc-lp-hero-actions { margin: 0 0 1.5rem; }

/* CTA-Button: nutzt Shop-.btn; ergänzt nur Größe/Abstand. */
.tc-lp-cta-btn {
    display: inline-block;
    font-weight: 600;
    padding: 0.7rem 1.5rem;
    scroll-behavior: smooth;
}

/* --- Kurze Vorteile (USP-Teaser im Hero) --------------------------------- */
.tc-lp-usp {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}
.tc-lp-usp-item {
    display: flex;
    align-items: flex-start;
    gap: 0.65rem;
    font-size: 0.95rem;
    color: var(--tc-text-muted);
}
.tc-lp-usp-item strong { color: var(--tc-text-strong); }
.tc-lp-usp-ico,
.tc-lp-card-ico {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2.1rem;
    height: 2.1rem;
    border-radius: 50%;
    background: #fff;
    color: var(--tc-accent);
    font-size: 1.05rem;
    box-shadow: var(--tc-shadow);
}

/* --- Inhaltsabschnitte --------------------------------------------------- */
.tc-lp-content { margin-top: 2rem; }
.tc-lp-section { margin: 0 0 2.5rem; }
.tc-lp-section-actions { margin-top: 1rem; }

/* --- Ablauf-Schritte ----------------------------------------------------- */
.tc-lp-steps {
    list-style: none;
    counter-reset: none;
    margin: 1rem 0 0;
    padding: 0;
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}
.tc-lp-steps > li {
    background: var(--tc-bg-soft);
    border: 1px solid var(--tc-border);
    border-radius: var(--tc-radius);
    padding: 1.1rem 1.2rem;
}
.tc-lp-steps p { margin: 0; font-size: 0.95rem; color: var(--tc-text-muted); }

/* --- Vorteils-Karten ----------------------------------------------------- */
.tc-lp-cards {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    margin-top: 1rem;
}
.tc-lp-card {
    background: #fff;
    border: 1px solid var(--tc-border);
    border-radius: var(--tc-radius);
    padding: 1.25rem;
    box-shadow: var(--tc-shadow);
}
.tc-lp-card-ico { margin-bottom: 0.6rem; }
.tc-lp-card p { margin: 0; font-size: 0.95rem; color: var(--tc-text-muted); }

/* --- FAQ (reines CSS/HTML-Accordion via <details>) ----------------------- */
.tc-lp-faq { margin-top: 1rem; border-top: 1px solid var(--tc-border); }
.tc-lp-faq-item { border-bottom: 1px solid var(--tc-border); }
.tc-lp-faq-item > summary {
    cursor: pointer;
    list-style: none;
    padding: 0.95rem 2rem 0.95rem 0;
    font-weight: 600;
    color: var(--tc-text-strong);
    position: relative;
}
.tc-lp-faq-item > summary::-webkit-details-marker { display: none; }
.tc-lp-faq-item > summary::after {
    content: "+";
    position: absolute;
    right: 0.25rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.3rem;
    color: var(--tc-accent);
    line-height: 1;
}
.tc-lp-faq-item[open] > summary::after { content: "−"; }
.tc-lp-faq-item > summary:focus-visible { outline: 3px solid var(--tc-accent); outline-offset: 2px; }
.tc-lp-faq-a { padding: 0 0 1rem; }
.tc-lp-faq-a p { margin: 0; color: var(--tc-text-muted); }

/* --- Abschluss-CTA ------------------------------------------------------- */
.tc-lp-cta {
    background: var(--tc-accent);
    border-radius: var(--tc-radius);
    color: #fff;
    text-align: center;
    padding: clamp(1.75rem, 4vw, 2.75rem) 1.25rem;
}
.tc-lp-cta-inner { max-width: 640px; margin: 0 auto; }
.tc-lp-cta-title { font-size: clamp(1.3rem, 2.4vw, 1.7rem); font-weight: 700; margin: 0 0 0.5rem; color: #fff; }
.tc-lp-cta-text { margin: 0 0 1.25rem; color: rgba(255, 255, 255, 0.92); max-width: none; }
.tc-lp-cta .btn { background: #fff; border-color: #fff; color: var(--tc-accent-dark); }
.tc-lp-cta .btn:hover,
.tc-lp-cta .btn:focus { background: var(--tc-accent-soft); border-color: var(--tc-accent-soft); color: var(--tc-accent-dark); }

/* --- Responsive ---------------------------------------------------------- */
@media (max-width: 991px) {
    .tc-lp { line-height: 1.55; }
    .tc-configurator { scroll-margin-top: 70px; }
}
@media (max-width: 560px) {
    .tc-lp-usp { grid-template-columns: 1fr; }
    .tc-lp-cards { grid-template-columns: 1fr; }
    .tc-lp-steps { grid-template-columns: 1fr; }
    .tc-lp-cta-btn { display: block; width: 100%; }
}
@media (prefers-reduced-motion: no-preference) {
    html { scroll-behavior: smooth; }
}