/* =============================================================
   Marketing Master Award 2026, Landingpage
   Design auf Basis MCKB-Designdoku + Briefing-Farben
   Mobile-first · keine Bibliotheken · Vanilla CSS
   ============================================================= */

/* ----- 1. Custom Properties --------------------------------- */
:root {
  /* Farben: MCKB + Briefing */
  --c-ink:        #002033;   /* Marineblau */
  --c-ink-2:      #002133;   /* Briefing-Variante */
  --c-paper:      #ffffff;
  --c-cloud:      #eaf3fb;   /* Eisblau MCKB */
  --c-sky:        #A0D4FB;   /* Briefing Hellblau */
  --c-aqua:       #1DAB9E;   /* Briefing Türkis */
  --c-aqua-dark:  #158f84;
  --c-magenta:    #d11c80;   /* MCKB Akzent (sparsam) */
  --c-line:       #d6e4f0;
  --c-mute:       #5b6b78;
  --c-error:      #d64545;

  /* Typografie */
  --font-sans:    "Roboto", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;

  /* Spacing-Raster (16px Basis) */
  --s-1: 8px;
  --s-2: 16px;
  --s-3: 24px;
  --s-4: 32px;
  --s-6: 48px;
  --s-8: 64px;
  --s-12: 96px;

  /* Layout */
  --container: 1202px;
  --radius: 0;             /* MCKB ist kantig */
}

/* ----- 2. Reset / Basis ------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font-sans);
  font-weight: 300;
  font-size: 18px;
  line-height: 1.55;
  color: #000;
  background: var(--c-paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; height: auto; display: block; }

a {
  color: var(--c-ink);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}
a:hover { color: var(--c-aqua-dark); }

h1, h2, h3, h4 {
  font-weight: 700;
  text-transform: uppercase;
  color: var(--c-ink);
  letter-spacing: 0.005em;
  margin: 0 0 var(--s-3);
}

h1 { font-size: clamp(2rem, 5vw + 0.5rem, 3rem); line-height: 1.1; }
h2 { font-size: clamp(1.6rem, 3.2vw + 0.4rem, 2.25rem); line-height: 1.18; }
h3 { font-size: 1.375rem; line-height: 1.2; }

p  { margin: 0 0 var(--s-3); }
p:last-child { margin-bottom: 0; }

.muted { color: var(--c-mute); font-weight: 400; }

/* Eyebrow */
.eyebrow {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--c-aqua);
  margin: 0 0 var(--s-2);
}
.eyebrow--dark { color: var(--c-ink); }

/* Akzent-Wort in Headlines */
.accent { color: var(--c-aqua); }

/* Container */
.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding-left: var(--s-2);
  padding-right: var(--s-2);
}
@media (min-width: 768px) {
  .container { padding-left: var(--s-4); padding-right: var(--s-4); }
}

/* Skiplink */
.skiplink {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--c-ink);
  color: #fff;
  padding: var(--s-2) var(--s-3);
  z-index: 100;
  text-decoration: none;
}
.skiplink:focus { left: var(--s-2); top: var(--s-2); }


/* ----- 3. Buttons ------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  font-weight: 700;
  line-height: 1;
  padding: 18px 32px 19px;
  text-decoration: none;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background-color .18s ease, color .18s ease, transform .18s ease, padding .18s ease;
  min-height: 56px;
  text-transform: none;
}
.btn:hover { transform: translateY(-1px); }

.btn--primary {
  background: var(--c-ink);
  color: #fff;
  border-color: var(--c-ink);
}
.btn--primary:hover { background: var(--c-aqua); border-color: var(--c-aqua); color: var(--c-ink); }

.btn--ghost {
  background: transparent;
  color: var(--c-ink);
  border-color: var(--c-ink);
}
.btn--ghost:hover { background: var(--c-ink); color: #fff; }

/* Hero CTAs (auf dunklem Hintergrund) */
.hero .btn--ghost {
  color: #fff;
  border-color: rgba(255,255,255,0.65);
}
.hero .btn--ghost:hover { background: #fff; color: var(--c-ink); }


/* ----- 4. Hero ---------------------------------------------- */
/* Mobile (default): Logo oben, dann Foto, dann Text + CTA. */
.hero {
  position: relative;
  color: #fff;
  background: var(--c-ink);
  isolation: isolate;
  display: flex;
  flex-direction: column;
}

.hero__top {
  position: relative;
  z-index: 1;
  padding-top: var(--s-3);
  padding-bottom: var(--s-3);
}
.hero__brand {
  display: inline-block;
  margin: 0;
  text-decoration: none;
}
.hero__brand img {
  width: 240px;
  max-width: 80%;
  height: auto;
  display: block;
  filter: brightness(0) invert(1);   /* Logo weiß auf dunklem Hero */
}

.hero__media {
  position: relative;
  width: 100%;
  aspect-ratio: 3 / 2;             /* Original-Verhältnis des Fotos, kein Crop nötig */
  overflow: hidden;
}
.hero__media img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: 55% 30%;
  display: block;
}
.hero__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg,
    transparent 0%,
    transparent 75%,
    rgba(0,32,51,0.7) 100%);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  padding-top: var(--s-4);
  padding-bottom: var(--s-6);
}

.hero .eyebrow { color: var(--c-sky); margin-top: 0; margin-bottom: var(--s-2); }

.hero__title {
  color: #fff;
  margin: 0 0 var(--s-3);
  max-width: 22ch;
  text-wrap: balance;
  font-size: clamp(1.5rem, 5.5vw, 2.4rem);
  line-height: 1.18;
}
.hero__lead {
  font-size: 1rem;
  font-weight: 300;
  max-width: 42ch;
  color: rgba(255,255,255,0.92);
  margin-bottom: var(--s-4);
}
.hero__cta {
  display: flex;
  flex-direction: column;
}
.hero__cta .btn { width: 100%; }

/* Hero-CTA: Türkis-Hintergrund + weiße Outline, prominent und klar */
.hero .btn--cta {
  background: var(--c-aqua);
  color: #fff;
  border: 2px solid #fff;
  padding: 20px 32px 21px;
  font-size: 1.125rem;
  letter-spacing: 0.005em;
  min-height: 60px;
}
.hero .btn--cta:hover {
  background: var(--c-aqua-dark);
  border-color: #fff;
  color: #fff;
}

/* Schmaler Akzentstreifen am unteren Rand, verbindet Hero zum Strip darunter */
.hero::after {
  content: "";
  display: block;
  height: 4px;
  background: var(--c-aqua);
}

/* Desktop ab 768px: Background-Image-Hero wie ursprünglich */
@media (min-width: 768px) {
  .hero {
    padding: 0 0 var(--s-12);
    min-height: 80vh;
    align-items: stretch;
    justify-content: flex-start;
    overflow: hidden;
  }
  .hero__top {
    padding-top: var(--s-6);
    padding-bottom: var(--s-4);
  }
  .hero__brand img { width: 420px; max-width: 100%; }
  .hero__media {
    position: absolute;
    inset: 0;
    aspect-ratio: auto;
    z-index: -1;
  }
  .hero__media img {
    object-position: center 38%;
  }
  .hero__overlay {
    background:
      linear-gradient(180deg, rgba(0,32,51,0.55) 0%, rgba(0,32,51,0.85) 70%, rgba(0,32,51,0.95) 100%);
  }
  .hero__inner { padding-top: 0; padding-bottom: 0; }
  .hero__title {
    font-size: clamp(2rem, 5vw + 0.5rem, 3rem);
    line-height: 1.1;
  }
  .hero__lead { font-size: 1.25rem; max-width: 56ch; }
  .hero__cta { flex-direction: row; }
  .hero__cta .btn { width: auto; }
  .hero::after { display: none; }
}


/* ----- 5. Eventdaten-Strip ---------------------------------- */
.strip {
  background: var(--c-ink);
  color: #fff;
  padding: var(--s-6) 0;
  border-top: 4px solid var(--c-aqua);
}
.strip__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--s-4) var(--s-4);
}
.strip__item {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding-left: var(--s-2);
  border-left: 2px solid var(--c-aqua);
}
.strip__label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--c-aqua);
  margin: 0;
}
.strip__value {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.25;
  color: #fff;
}
@media (min-width: 768px) {
  .strip { padding: var(--s-8) 0; }
  .strip__grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
  }
  .strip__item {
    padding: 4px var(--s-4);
    gap: 12px;
  }
  /* Trennlinien zwischen den Spalten, statt Akzent links nur am ersten */
  .strip__item + .strip__item {
    border-left: 1px solid rgba(255,255,255,0.12);
  }
  .strip__item:first-child {
    padding-left: 0;
    border-left: 0;
  }
  .strip__value { font-size: 1.5rem; }
}


/* ----- 6. Sektionen (generic) ------------------------------- */
.section {
  padding: var(--s-8) 0;
  background: var(--c-paper);
}
.section--alt    { background: var(--c-cloud); }
.section--audience { background: var(--c-ink); color: #fff; }
.section--audience h2 { color: #fff; }
.section--audience .eyebrow { color: var(--c-sky); }
.section--form   { background: #fff; }
.section--about  { background: var(--c-cloud); }

@media (min-width: 768px) {
  .section { padding: var(--s-12) 0; }
}

.section__head { max-width: 64ch; margin-bottom: var(--s-6); }
.section__head--center { margin-left: auto; margin-right: auto; text-align: center; }
.section__cta { margin-top: var(--s-6); display: flex; justify-content: center; }

/* Split: Text + Bild */
.section__split {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-6);
  align-items: center;
}
.section__split .section__copy { order: 1; }
.section__split .section__media { order: 2; }
.section__media img { width: 100%; }

@media (min-width: 900px) {
  .section__split { grid-template-columns: 1.05fr 1fr; gap: var(--s-12); }
  .section__split--reverse .section__copy { order: 2; }
  .section__split--reverse .section__media { order: 1; }
}


/* ----- 7. Cards (Mehrwert) ---------------------------------- */
.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-4);
}
.card {
  background: #fff;
  box-shadow: 0 8px 24px rgba(0,32,51,0.08);
  display: flex;
  flex-direction: column;
}
.card__media {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--c-cloud);
}
.card__media img { width: 100%; height: 100%; object-fit: cover; }
.card h3 {
  margin: var(--s-3) var(--s-3) var(--s-2);
  font-size: 1.25rem;
}
.card p { padding: 0 var(--s-3) var(--s-3); margin: 0; font-size: 1rem; line-height: 1.55; }

@media (min-width: 768px) {
  .cards { grid-template-columns: repeat(3, 1fr); gap: var(--s-4); }
}


/* ----- 8. Audience-Liste ------------------------------------ */
.audience {
  list-style: none;
  padding: 0;
  margin: var(--s-4) auto 0;
  max-width: 56ch;
  display: grid;
  gap: var(--s-2);
  text-align: left;
}
.audience li {
  background: rgba(255,255,255,0.06);
  border-left: 3px solid var(--c-aqua);
  padding: var(--s-3) var(--s-3);
  font-size: 1.0625rem;
}


/* ----- 9. Form ---------------------------------------------- */
.form__wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-6);
  align-items: start;
}
@media (min-width: 900px) {
  .form__wrap { grid-template-columns: 1fr 1.2fr; gap: var(--s-12); }
  .form__intro { position: sticky; top: var(--s-4); }
}

.form {
  display: grid;
  gap: var(--s-3);
  background: var(--c-cloud);
  padding: var(--s-4);
  border-top: 4px solid var(--c-aqua);
}
/* hidden-Attribut darf nicht von display:grid überschrieben werden */
.form[hidden] { display: none; }
@media (min-width: 768px) {
  .form { padding: var(--s-6); }
}

.form__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--s-3);
}
@media (min-width: 600px) {
  .form__row { grid-template-columns: 1fr 1fr; }
}

.field { display: flex; flex-direction: column; gap: 6px; }
.field__label {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--c-ink);
}

.field input[type="text"],
.field input[type="email"],
.field select {
  font-family: var(--font-sans);
  font-size: 1rem;
  padding: 14px 14px;
  border: 1px solid var(--c-line);
  background: #fff;
  border-radius: 0;
  color: var(--c-ink);
  transition: border-color .15s ease, box-shadow .15s ease;
  min-height: 48px;
}
.field input:focus,
.field select:focus {
  outline: none;
  border-color: var(--c-aqua);
  box-shadow: 0 0 0 3px rgba(29,171,158,0.18);
}

/* Custom Chevron für das Select, damit es zum Design passt */
.field--select { position: relative; }
.field--select select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  padding-right: 44px;
  cursor: pointer;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--c-ink) 50%),
    linear-gradient(135deg, var(--c-ink) 50%, transparent 50%);
  background-position:
    calc(100% - 22px) 22px,
    calc(100% - 16px) 22px;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
}
.field--select select:invalid { color: var(--c-mute); }
.field--select option { color: var(--c-ink); }

.field--radios { border: 0; padding: 0; margin: 0; }
.radios { display: flex; flex-wrap: wrap; gap: var(--s-2); }
.radio {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border: 1px solid var(--c-line);
  background: #fff;
  cursor: pointer;
  font-size: 0.9375rem;
  user-select: none;
  transition: border-color .15s, background .15s;
}
.radio input { accent-color: var(--c-aqua); margin: 0; }
.radio:has(input:checked) {
  border-color: var(--c-aqua);
  background: rgba(29,171,158,0.08);
}

.field--checkbox {
  flex-direction: row;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9375rem;
  line-height: 1.5;
}
.field--checkbox input {
  margin-top: 4px;
  accent-color: var(--c-aqua);
  width: 18px; height: 18px;
}
.field--checkbox a { color: var(--c-ink); }

.field__error {
  display: none;
  color: var(--c-error);
  font-size: 0.85rem;
  font-weight: 400;
}
.field.is-invalid .field__error,
.field--radios.is-invalid .field__error,
.field--checkbox.is-invalid .field__error { display: block; }
.field.is-invalid input,
.field.is-invalid select { border-color: var(--c-error); }

/* Honeypot */
.hp { position: absolute; left: -10000px; top: auto; width: 1px; height: 1px; overflow: hidden; }

/* Submit */
.form__submit {
  margin-top: var(--s-2);
  width: 100%;
  position: relative;
}
.form__submit-spinner {
  display: none;
  width: 20px; height: 20px;
  border: 2px solid currentColor; border-top-color: transparent;
  border-radius: 50%;
  animation: spin .8s linear infinite;
}
.form.is-loading .form__submit-label { opacity: 0.4; }
.form.is-loading .form__submit-spinner { display: inline-block; }
.form.is-loading .form__submit { pointer-events: none; }

@keyframes spin { to { transform: rotate(360deg); } }

.form__note {
  margin: 0;
  font-size: 0.85rem;
  color: var(--c-mute);
  font-weight: 400;
}

/* Erfolgs-State */
.form__success {
  background: var(--c-ink);
  color: #fff;
  padding: var(--s-6);
  text-align: center;
  border-top: 4px solid var(--c-aqua);
}
.form__success h2 { color: #fff; }
.form__success-mark {
  width: 64px; height: 64px;
  border-radius: 50%;
  background: var(--c-aqua);
  color: var(--c-ink);
  display: flex; align-items: center; justify-content: center;
  font-size: 36px; font-weight: 700;
  margin: 0 auto var(--s-3);
}


/* ----- 10. Footer ------------------------------------------- */
.footer {
  background: var(--c-ink);
  color: rgba(255,255,255,0.85);
  padding: var(--s-8) 0 var(--s-4);
  font-size: 0.9375rem;
}
.footer a { color: #fff; text-decoration: none; }
.footer a:hover { color: var(--c-aqua); }

.footer__grid {
  display: grid;
  gap: var(--s-6);
  grid-template-columns: 1fr;
  padding-bottom: var(--s-6);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.footer__brand img {
  height: 48px; width: auto;
  filter: brightness(0) invert(1);
  margin-bottom: var(--s-2);
}
.footer__meta { display: flex; flex-direction: column; gap: var(--s-3); }
.footer__contact { margin: 0; line-height: 1.5; }
.footer__contact a { font-weight: 700; }
.footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--s-3);
}
.footer__base {
  padding-top: var(--s-3);
  color: rgba(255,255,255,0.5);
}

@media (min-width: 768px) {
  .footer__grid {
    grid-template-columns: 1.5fr 1fr;
    align-items: center;
  }
  .footer__meta { align-items: flex-end; text-align: right; gap: var(--s-2); }
  .footer__nav { justify-content: flex-end; }
}


/* ----- 11. Powered-by-AGENTICAL Badge (sticky) -------------- */
.powered-by {
  position: fixed;
  bottom: 12px;
  right: 12px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 11px;
  background: #0F0F1A;
  color: #fff;
  border-radius: 999px;
  text-decoration: none;
  box-shadow: 0 2px 10px rgba(0,0,0,0.18);
  z-index: 100;
  opacity: 0.78;
  transition: opacity .15s ease, transform .15s ease;
  font-family: var(--font-sans);
  line-height: 1;
}
.powered-by:hover { opacity: 1; transform: translateY(-1px); color: #fff; }
.powered-by .pb-prefix {
  font-size: 0.62rem;
  font-weight: 400;
  color: rgba(255,255,255,0.55);
  letter-spacing: 0.02em;
}
.powered-by .pb-brand {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--c-aqua);
  letter-spacing: -0.005em;
}
@media (max-width: 600px) {
  .powered-by { bottom: 8px; right: 8px; padding: 5px 9px; }
}


/* ----- 12. Legal-Seiten (Impressum/Datenschutz) -------------- */
.legal {
  padding: var(--s-8) 0 var(--s-12);
  background: #fff;
}
.legal__wrap {
  max-width: 760px;
}
.legal h1 {
  font-size: clamp(2rem, 4vw + 0.5rem, 2.75rem);
  margin-bottom: var(--s-6);
}
.legal h3 {
  margin-top: var(--s-6);
  margin-bottom: var(--s-2);
  font-size: 1.125rem;
}
.legal p { font-size: 1rem; line-height: 1.65; }
.legal ul {
  font-size: 1rem;
  line-height: 1.65;
  margin: 0 0 var(--s-3);
  padding-left: 1.25rem;
}
.legal ul li { margin-bottom: 4px; }
.legal__back { color: var(--c-ink); text-decoration: none; font-weight: 700; }
.legal__back:hover { color: var(--c-aqua-dark); }
.legal__updated {
  margin-top: var(--s-6);
  color: var(--c-mute);
  font-size: 0.875rem;
}


/* ----- 13. Reduced Motion ----------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}