/* ---------------------------------------------------------------
   Neo-Brutalismus: harte Kanten, dicke Rahmen, versetzte Schatten.
   Keine externen Fonts (DSGVO) - nur System-Schriften.
--------------------------------------------------------------- */
:root {
  --ink: #0d0d0d;
  --paper: #f5f1e8;
  --yellow: #ffd400;
  --cyan: #4deeea;
  --pink: #ff5c8a;
  --green: #b8ff4f;
  --border: 4px solid var(--ink);
  --shadow: 8px 8px 0 var(--ink);
  --shadow-sm: 4px 4px 0 var(--ink);
  --font: "Helvetica Neue", Helvetica, Arial, "Segoe UI", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  padding: 48px 16px 64px;
  background-color: var(--paper);
  background-image:
    repeating-linear-gradient(
      0deg,
      rgba(0, 0, 0, 0.06) 0 1px,
      transparent 1px 32px
    ),
    repeating-linear-gradient(
      90deg,
      rgba(0, 0, 0, 0.06) 0 1px,
      transparent 1px 32px
    );
  color: var(--ink);
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.55;
}

.page {
  max-width: 680px;
  margin: 0 auto;
}

/* --- Hero --------------------------------------------------- */
.badge {
  display: inline-block;
  margin: 0 0 20px;
  padding: 8px 16px;
  background: var(--pink);
  border: var(--border);
  box-shadow: var(--shadow-sm);
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transform: rotate(-2deg);
}

h1 {
  margin: 0 0 20px;
  font-size: clamp(2.1rem, 8vw, 3.6rem);
  font-weight: 900;
  line-height: 1.02;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}

h1::after {
  content: "";
  display: block;
  width: 120px;
  height: 10px;
  margin-top: 18px;
  background: var(--yellow);
  border: 3px solid var(--ink);
}

.lead {
  margin: 0 0 36px;
  font-size: 1.06rem;
  max-width: 56ch;
}

/* --- Banner ------------------------------------------------- */
.banner {
  margin: 0 0 28px;
  padding: 16px 18px;
  border: var(--border);
  box-shadow: var(--shadow);
  font-weight: 600;
}

.banner--ok {
  background: var(--green);
}

.banner--error {
  background: var(--pink);
}

/* --- Karte / Formular --------------------------------------- */
.card {
  padding: 28px 24px 32px;
  background: #fff;
  border: var(--border);
  box-shadow: var(--shadow);
}

.card h2 {
  margin: 0;
  font-size: 1.5rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.01em;
}

.card__sub {
  margin: 6px 0 28px;
  font-size: 0.95rem;
}

.field {
  margin-bottom: 22px;
}

label {
  display: block;
  margin-bottom: 8px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

input[type="text"],
input[type="email"],
input[type="tel"],
textarea {
  display: block;
  width: 100%;
  padding: 14px;
  background: var(--paper);
  border: var(--border);
  border-radius: 0;
  color: var(--ink);
  font-family: inherit;
  font-size: 16px;
  transition:
    box-shadow 0.08s ease,
    transform 0.08s ease;
}

textarea {
  resize: vertical;
  min-height: 120px;
}

input:focus,
textarea:focus {
  outline: none;
  background: #fff;
  box-shadow: var(--shadow-sm);
  transform: translate(-2px, -2px);
}

.field--challenge input {
  max-width: 160px;
  background: var(--cyan);
  font-weight: 800;
}

button {
  width: 100%;
  padding: 18px 24px;
  background: var(--yellow);
  border: var(--border);
  border-radius: 0;
  box-shadow: var(--shadow);
  color: var(--ink);
  cursor: pointer;
  font-family: inherit;
  font-size: 1.05rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition:
    transform 0.08s ease,
    box-shadow 0.08s ease;
}

button:hover {
  transform: translate(-3px, -3px);
  box-shadow: 11px 11px 0 var(--ink);
}

button:active {
  transform: translate(4px, 4px);
  box-shadow: 2px 2px 0 var(--ink);
}

button:focus-visible {
  outline: 4px solid var(--pink);
  outline-offset: 3px;
}

.note {
  margin: 16px 0 0;
  font-size: 0.82rem;
  line-height: 1.4;
}

.aux-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* --- Referenz ------------------------------------------------ */
.reference {
  margin-top: 28px;
  padding: 20px 22px;
  background: var(--cyan);
  border: var(--border);
  box-shadow: var(--shadow);
}

.reference__label {
  margin: 0 0 6px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.reference__link {
  margin: 0 0 8px;
  font-size: 1.35rem;
  font-weight: 900;
  letter-spacing: -0.01em;
}

.reference__link a {
  text-decoration-thickness: 4px;
}

.reference__link a:hover {
  background: var(--yellow);
}

.reference__note {
  margin: 0;
  font-size: 0.9rem;
}

/* --- Textseiten (Impressum, Datenschutz) -------------------- */
.hero--sub h1::after {
  width: 80px;
  height: 8px;
}

.badge--cyan {
  background: var(--cyan);
}

.prose {
  padding: 28px 24px 32px;
  background: #fff;
  border: var(--border);
  box-shadow: var(--shadow);
}

.prose h2 {
  margin: 36px 0 12px;
  font-size: 1.05rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.prose h2:first-child {
  margin-top: 0;
}

.prose h2::before {
  content: "";
  display: inline-block;
  width: 14px;
  height: 14px;
  margin-right: 10px;
  background: var(--yellow);
  border: 3px solid var(--ink);
  vertical-align: baseline;
}

.prose p,
.prose ul {
  margin: 0 0 14px;
  font-size: 0.97rem;
}

.prose ul {
  padding-left: 22px;
}

.prose li {
  margin-bottom: 4px;
}

.prose .address {
  padding: 14px 16px;
  background: var(--paper);
  border-left: 8px solid var(--ink);
  font-weight: 600;
}

.facts {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 6px 18px;
  margin: 0 0 14px;
  font-size: 0.97rem;
}

.facts dt {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding-top: 2px;
}

.facts dd {
  margin: 0;
}

.updated {
  margin-top: 28px;
  padding-top: 14px;
  border-top: 3px solid var(--ink);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* --- Footer ------------------------------------------------- */
.footer {
  margin-top: 32px;
  font-size: 0.9rem;
  font-weight: 600;
}

.footer p {
  margin: 4px 0;
}

.footer__legal {
  margin-top: 10px;
  font-weight: 700;
}

.footer__legal a {
  text-decoration-thickness: 3px;
}

a {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-thickness: 3px;
  text-underline-offset: 3px;
}

a:hover {
  background: var(--yellow);
}

@media (max-width: 480px) {
  body {
    padding-top: 32px;
  }

  .card,
  .prose {
    padding: 22px 18px 26px;
  }

  .facts {
    grid-template-columns: 1fr;
    gap: 2px;
  }

  .facts dd {
    margin-bottom: 10px;
  }

  :root {
    --shadow: 6px 6px 0 var(--ink);
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
  }
}