/*
 * ScaleHousing Systems – Messe-Landingpage
 * Premium-Stil: warmes Weiß, Holz-/Erdtöne, Anthrazit, Salbeigrün, Goldbraun.
 * Mobile-First. Bewusst zurückhaltend, viel Weißraum, hochwertige Typografie.
 */

/* ---------- Tokens ---------- */
:root {
  --color-bg:           #faf7f2;   /* warmes Weiß */
  --color-bg-alt:       #f0eae0;   /* Sandton hell */
  --color-bg-dark:      #2a2622;   /* tiefes Anthrazit-Braun */
  --color-bg-darker:    #1f1c19;
  --color-ink:          #2a2622;   /* Haupttext */
  --color-ink-soft:     #5a544e;   /* Sekundärtext */
  --color-ink-light:    #8a847c;   /* Hinweise */
  --color-ink-on-dark:  #f5efe5;
  --color-ink-on-dark-soft: #c8c0b2;

  --color-wood:         #8b6f47;   /* Holzton */
  --color-wood-light:   #c89968;
  --color-sage:         #6b8e6b;   /* Salbeigrün */
  --color-gold:         #bd8c5c;   /* Goldbraun Akzent */
  --color-line:         #e3dcd0;
  --color-line-strong:  #cdc4b4;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;

  --font-display: 'Fraunces', Georgia, serif;
  --font-body:    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  --shadow-sm: 0 1px 2px rgba(42, 38, 34, 0.06);
  --shadow-md: 0 4px 16px rgba(42, 38, 34, 0.08);
  --shadow-lg: 0 12px 40px rgba(42, 38, 34, 0.12);

  --content-max: 720px;
  --content-wide: 1080px;
}

/* ---------- Reset / Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  color: var(--color-ink);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { max-width: 100%; display: block; }
a { color: var(--color-wood); text-decoration: none; transition: color .15s; }
a:hover { color: var(--color-gold); }
em { font-style: normal; color: var(--color-wood); }
sup { color: var(--color-wood); font-size: .85em; }

::selection { background: var(--color-gold); color: #fff; }

/* ---------- Topbar ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 20px;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-line);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(8px);
  background-color: rgba(250, 247, 242, 0.92);
}
.brand {
  display: flex;
  align-items: baseline;
  gap: 6px;
  color: var(--color-ink);
}
.brand-mark {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  color: var(--color-wood);
}
.brand-sub {
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-ink-soft);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.topbar-meta {
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-ink-light);
  text-align: right;
}

/* ---------- Bands / Sections ---------- */
.band {
  padding: 56px 20px;
  background: var(--color-bg);
}
.band-light { background: var(--color-bg-alt); }
.band-dark  { background: var(--color-bg-dark); color: var(--color-ink-on-dark); }

.content-block {
  max-width: var(--content-max);
  margin: 0 auto;
}

.eyebrow {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-wood);
  font-weight: 600;
  margin-bottom: 14px;
}
.eyebrow-on-dark { color: var(--color-gold); }

.section-headline {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.7rem, 5.5vw, 2.4rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 18px;
  color: var(--color-ink);
}
.section-headline--light { color: var(--color-ink-on-dark); }

.lead {
  font-size: 1.1rem;
  line-height: 1.55;
  color: var(--color-ink-soft);
  margin: 0 0 18px;
}
.lead-on-dark { color: var(--color-ink-on-dark-soft); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 64px 20px 72px;
  background:
    linear-gradient(180deg, rgba(250, 247, 242, 0) 0%, rgba(250, 247, 242, 1) 95%),
    linear-gradient(135deg, #f5ecd9 0%, #e8d9bd 60%, #d4b88a 100%);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(139, 111, 71, 0.08), transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(189, 140, 92, 0.10), transparent 55%);
  pointer-events: none;
}
.hero-inner {
  position: relative;
  max-width: var(--content-max);
  margin: 0 auto;
}
.hero-headline {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2.2rem, 8.5vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin: 0 0 18px;
  color: var(--color-ink);
}
.hero-subline {
  font-size: 1.15rem;
  line-height: 1.5;
  color: var(--color-ink-soft);
  margin: 0 0 28px;
  max-width: 580px;
}
.claim-list {
  list-style: none;
  padding: 0;
  margin: 0 0 28px;
  display: grid;
  gap: 12px;
}
.claim-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-ink);
}
.claim-list .i {
  width: 22px;
  height: 22px;
  fill: var(--color-wood);
  flex-shrink: 0;
}
.hero-divider-note {
  padding: 16px 18px;
  border-left: 3px solid var(--color-wood);
  background: rgba(255, 255, 255, 0.55);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: 0.97rem;
  color: var(--color-ink-soft);
  margin: 0 0 28px;
}

/* ---------- CTA Buttons ---------- */
.cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 24px;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.01em;
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: transform .15s, background .2s, color .2s, box-shadow .2s, border-color .2s;
  text-decoration: none;
  min-height: 48px;
}
.btn-primary {
  background: var(--color-ink);
  color: var(--color-ink-on-dark);
  border-color: var(--color-ink);
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
  background: var(--color-wood);
  border-color: var(--color-wood);
  color: #fff;
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}
.btn-ghost {
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-line-strong);
}
.btn-ghost:hover {
  background: var(--color-ink);
  color: var(--color-ink-on-dark);
  border-color: var(--color-ink);
}
.btn-on-dark {
  background: var(--color-gold);
  border-color: var(--color-gold);
  color: #fff;
}
.btn-on-dark:hover {
  background: var(--color-wood-light);
  border-color: var(--color-wood-light);
  color: #fff;
}
.btn-large {
  width: 100%;
  padding: 17px 24px;
  font-size: 1.05rem;
}

/* ---------- Why / Premium-Grid ---------- */
.premium-grid {
  display: grid;
  gap: 18px;
  margin: 24px 0 0;
}
.premium-grid > div {
  padding: 18px 20px;
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
}
.premium-grid dt {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--color-ink);
  margin-bottom: 6px;
}
.premium-grid dd {
  margin: 0;
  font-size: 0.93rem;
  color: var(--color-ink-soft);
  line-height: 1.5;
}

/* ---------- Zielgruppen-Grid ---------- */
.target-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: 1fr;
  margin: 24px 0;
}
.target-card {
  padding: 22px 20px;
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: flex-start;
  gap: 16px;
  transition: transform .2s, box-shadow .2s, border-color .2s;
}
.target-card:hover {
  border-color: var(--color-wood);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.target-card .i {
  width: 28px;
  height: 28px;
  fill: var(--color-wood);
  flex-shrink: 0;
  margin-top: 2px;
}
.target-card h3 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  margin: 0 0 4px;
  color: var(--color-ink);
}
.target-card p {
  margin: 0;
  font-size: 0.92rem;
  color: var(--color-ink-soft);
  line-height: 1.45;
}
.target-card--accent {
  background: linear-gradient(135deg, #f5ecd9, #e8d9bd);
  border-color: var(--color-wood-light);
}
.target-card--accent .i { fill: var(--color-wood); }

.callout {
  margin-top: 24px;
  padding: 18px 22px;
  background: var(--color-bg);
  border-left: 3px solid var(--color-sage);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  font-size: 0.97rem;
  color: var(--color-ink-soft);
  line-height: 1.55;
}

/* ---------- Bauweise ---------- */
.bauweise-grid {
  display: grid;
  gap: 28px;
}
.bauweise-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  aspect-ratio: 4 / 3;
  background: var(--color-bg);
}
.bauweise-image img { width: 100%; height: 100%; object-fit: cover; display: block; }
.image-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background:
    repeating-linear-gradient(45deg, #d4b88a 0 8px, #c89968 8px 16px);
  color: rgba(42, 38, 34, 0.75);
  text-align: center;
  padding: 24px;
}
.image-placeholder span { font-family: var(--font-display); font-size: 1.15rem; font-weight: 600; }
.image-placeholder small { font-size: 0.85rem; opacity: 0.8; }

.feature-list {
  list-style: none;
  padding: 0;
  margin: 18px 0 24px;
  display: grid;
  gap: 10px;
}
.feature-list li {
  position: relative;
  padding-left: 24px;
  font-size: 0.97rem;
  color: var(--color-ink-soft);
  line-height: 1.5;
}
.feature-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  background: var(--color-sage);
  border-radius: 2px;
}
.muted-label {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-ink-light);
  margin: 18px 0 10px;
}
.pill-list {
  list-style: none;
  padding: 0;
  margin: 0 0 18px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.pill-list li {
  padding: 6px 12px;
  background: var(--color-bg);
  border: 1px solid var(--color-line-strong);
  border-radius: 100px;
  font-size: 0.82rem;
  color: var(--color-ink-soft);
  font-weight: 500;
}
.legal-note {
  margin-top: 24px;
  font-size: 0.82rem;
  color: var(--color-ink-light);
  font-style: italic;
  line-height: 1.5;
  padding-top: 18px;
  border-top: 1px dashed var(--color-line);
}

/* ---------- Dark Band ---------- */
.dark-bullet {
  list-style: none;
  padding: 0;
  margin: 18px 0 28px;
  display: grid;
  gap: 8px;
}
.dark-bullet li {
  position: relative;
  padding-left: 22px;
  font-size: 0.97rem;
  color: var(--color-ink-on-dark-soft);
}
.dark-bullet li::before {
  content: "→";
  position: absolute;
  left: 0;
  color: var(--color-gold);
}
/* Checklist-Variante (Nachmesse: 8 Prüf-Punkte) – ab Tablet 2-spaltig. */
@media (min-width: 640px) {
  .dark-bullet--checklist { grid-template-columns: 1fr 1fr; gap: 10px 28px; }
}

/* ---------- PDF-Block ---------- */
.pdf-block {
  display: grid;
  gap: 28px;
  align-items: center;
}
.pdf-preview {
  display: flex;
  justify-content: center;
}
.pdf-mockup {
  width: min(280px, 100%);
  aspect-ratio: 1 / 1.41;
  background: linear-gradient(180deg, #fff 0%, #f5ecd9 100%);
  border: 1px solid var(--color-line-strong);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 36px 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  position: relative;
  transform: rotate(-2deg);
}
.pdf-mockup::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: var(--radius-md);
  background:
    linear-gradient(to bottom, transparent 70%, rgba(189, 140, 92, 0.08) 100%);
  pointer-events: none;
}
.pdf-mockup-eyebrow {
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-wood);
  font-weight: 600;
}
.pdf-mockup-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1.1;
  color: var(--color-ink);
}
.pdf-mockup-sub {
  font-size: 0.78rem;
  color: var(--color-ink-soft);
  line-height: 1.4;
  margin-top: auto;
}

/* ---------- Formulare ---------- */
.lead-form,
.pdf-form {
  display: grid;
  gap: 18px;
  margin-top: 24px;
}
.lead-form fieldset,
.pdf-form fieldset {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 22px 20px;
  margin: 0;
  background: var(--color-bg);
}
.lead-form legend {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--color-ink);
  padding: 0 8px;
  margin-left: -8px;
}
.fieldset-hint {
  font-size: 0.85rem;
  color: var(--color-ink-light);
  margin: 0 0 12px;
}
.field {
  display: block;
  margin-bottom: 14px;
}
.field:last-child { margin-bottom: 0; }
.field .label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-ink);
  margin-bottom: 6px;
}
.field input[type="text"],
.field input[type="email"],
.field input[type="tel"],
.field input[type="url"],
.field select,
.field textarea {
  width: 100%;
  padding: 12px 14px;
  font: inherit;
  font-size: 1rem;
  border: 1.5px solid var(--color-line-strong);
  border-radius: var(--radius-md);
  background: #fff;
  color: var(--color-ink);
  transition: border-color .15s, box-shadow .15s;
  -webkit-appearance: none;
  appearance: none;
  min-height: 48px;
}
.field textarea {
  min-height: 110px;
  resize: vertical;
  font-family: var(--font-body);
}
.field select {
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8' fill='%238b6f47'><path d='M6 8L0 0h12z'/></svg>");
  background-repeat: no-repeat;
  background-position: right 16px center;
  background-size: 12px 8px;
  padding-right: 40px;
}
.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--color-wood);
  box-shadow: 0 0 0 3px rgba(139, 111, 71, 0.15);
}
.field input:invalid:not(:placeholder-shown):not(:focus),
.field select:invalid:not(:focus),
.field textarea:invalid:not(:placeholder-shown):not(:focus) {
  border-color: #c44a3f;
}
.field-row {
  display: grid;
  gap: 14px;
}
.field-hint {
  display: block;
  margin-top: 6px;
  font-size: 0.78rem;
  color: var(--color-ink-light);
}

.check {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 0;
  cursor: pointer;
  font-size: 0.92rem;
  line-height: 1.5;
  color: var(--color-ink-soft);
}
.check input[type="checkbox"] {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  margin: 0;
  accent-color: var(--color-wood);
  cursor: pointer;
}
.check-grid {
  display: grid;
  gap: 4px;
}

.honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.muted-tiny {
  font-size: 0.78rem;
  color: var(--color-ink-light);
  margin: 8px 0 0;
  text-align: center;
}

/* ---------- Iframe-Embed (Form-Builder) ---------- */
.form-iframe-wrapper {
  margin-top: 28px;
  background: var(--color-bg);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 20px 16px;
  overflow: hidden;
  transition: border-color .2s, box-shadow .2s;
}
.form-iframe-wrapper:focus-within {
  border-color: var(--color-wood);
  box-shadow: 0 0 0 3px rgba(139, 111, 71, 0.08);
}
.form-iframe-wrapper iframe {
  width: 100%;
  border: 0;
  display: block;
}

/* ---------- Footer ---------- */
.footer {
  background: var(--color-bg-darker);
  color: var(--color-ink-on-dark-soft);
  padding: 56px 20px 40px;
}
.footer-brand {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.4rem;
  color: var(--color-gold);
  margin: 0 0 10px;
}
.footer-claim {
  font-size: 0.97rem;
  color: var(--color-ink-on-dark);
  margin: 0 0 28px;
  max-width: 540px;
}
.footer-contact {
  display: grid;
  gap: 14px;
  margin: 0 0 28px;
}
.footer-contact div {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 12px;
  align-items: baseline;
}
.footer-contact dt {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-ink-light);
}
.footer-contact dd {
  margin: 0;
  font-size: 0.97rem;
}
.footer-contact a {
  color: var(--color-ink-on-dark);
  border-bottom: 1px solid transparent;
}
.footer-contact a:hover {
  color: var(--color-gold);
  border-color: var(--color-gold);
}
.footer-legal-note {
  font-size: 0.78rem;
  color: var(--color-ink-light);
  font-style: italic;
  line-height: 1.5;
  margin: 0 0 28px;
  padding-bottom: 24px;
  border-bottom: 1px solid rgba(245, 239, 229, 0.1);
}
.footer-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin: 0 0 18px;
}
.footer-nav a {
  font-size: 0.88rem;
  color: var(--color-ink-on-dark-soft);
}
.footer-nav a:hover { color: var(--color-gold); }
.footer-copy {
  font-size: 0.78rem;
  color: var(--color-ink-light);
  margin: 0;
}

/* ---------- Responsive ---------- */
@media (min-width: 640px) {
  body { font-size: 18px; }
  .band { padding: 80px 32px; }
  .hero { padding: 96px 32px 120px; }
  .target-grid { grid-template-columns: repeat(2, 1fr); }
  .field-row { grid-template-columns: 1fr 1fr; }
  .pdf-block { grid-template-columns: 1fr 1.4fr; gap: 40px; }
  .bauweise-grid { grid-template-columns: 1fr 1fr; gap: 40px; align-items: center; }
  .check-grid { grid-template-columns: 1fr 1fr; }
  .topbar { padding: 18px 32px; }
}

@media (min-width: 960px) {
  .band { padding: 100px 40px; }
  .hero { padding: 120px 40px 140px; }
  .content-block { max-width: var(--content-max); }
  .pdf-block { max-width: var(--content-wide); }
  .bauweise-grid { max-width: var(--content-wide); }

  /* Zielgruppen-Sektion bekommt eigene, breitere Bühne auf Desktop. */
  section.band:has(.target-grid) .content-block { max-width: var(--content-wide); }

  .target-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }
  .target-card {
    /* Vertikales Premium-Layout: Icon-Kreis oben, Titel, Beschreibung. */
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 40px 28px;
    gap: 0;
  }
  .target-card .i {
    width: 32px;
    height: 32px;
    padding: 16px;
    margin: 0 0 20px;
    background: rgba(139, 111, 71, 0.08);
    border-radius: 50%;
    box-sizing: content-box;
    transition: background .25s, transform .25s;
  }
  .target-card:hover .i {
    background: rgba(139, 111, 71, 0.18);
    transform: scale(1.06);
  }
  .target-card h3 {
    font-size: 1.2rem;
    margin: 0 0 10px;
  }
  .target-card p {
    font-size: 0.95rem;
    max-width: 240px;
    margin: 0 auto;
  }

  /* Accent-Karte als horizontaler Banner zwischen Business und Privat. */
  .target-card--accent {
    grid-column: span 3;
    flex-direction: row;
    align-items: center;
    text-align: left;
    gap: 24px;
    padding: 28px 36px;
  }
  .target-card--accent .i {
    margin: 0;
    background: rgba(189, 140, 92, 0.18);
  }
  .target-card--accent:hover .i { background: rgba(189, 140, 92, 0.28); }
  .target-card--accent h3 { margin: 0 0 4px; }
  .target-card--accent p { max-width: none; margin: 0; }

  .footer-contact { grid-template-columns: repeat(3, 1fr); }
  .footer-contact div { grid-template-columns: 1fr; gap: 4px; }
}

/* ---------- Reduced Motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
  html { scroll-behavior: auto; }
}