/* ==========================================================================
   Theoriesteine Landingpage – Design Tokens
   ========================================================================== */

:root {
  --color-blue: #0088c0;
  --color-blue-dark: #036a97;
  --color-blue-soft: #e4f4fb;
  --color-yellow: #ffcb1c;
  --color-yellow-soft: #fff3d0;
  --color-pink: #e11683;
  --color-pink-soft: #fce4f1;
  --color-green: #7ba81e;
  --color-green-soft: #eef6dc;
  --color-orange: #f6a924;
  --color-orange-soft: #fef1dc;

  --color-ink: #17212b;
  --color-ink-soft: #263241;
  --color-text: #3a4450;
  --color-text-soft: #6b7480;
  --color-bg: #fffcf7;
  --color-bg-soft: #f6f2e9;
  --color-border: #ece6d8;

  --radius-lg: 10px;
  --radius-md: 10px;
  --radius-sm: 10px;
  --radius-pill: 999px;

  --shadow-sm: 0 10px 30px -16px rgba(23, 33, 43, 0.28);
  --shadow-md: 0 26px 60px -22px rgba(23, 33, 43, 0.38);
  --shadow-lg: 0 46px 100px -32px rgba(23, 33, 43, 0.5);
  --shadow-hard: 5px 5px 0 0 var(--color-ink);
  --shadow-hard-hover: 7px 7px 0 0 var(--color-ink);
  --border-hard: 2px solid var(--color-ink);
  --radius-card: 10px;

  --ease-smooth: cubic-bezier(0.16, 1, 0.3, 1);

  --font-body: "Barlow", system-ui, -apple-system, sans-serif;
  --font-display: "Poppins", "Barlow", system-ui, sans-serif;

  --header-h: 76px;
  --wrap-w: 1200px;
}

/* ==========================================================================
   Reset
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  line-height: 1.5;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { margin: 0; padding: 0; list-style: none; }
button { font: inherit; cursor: pointer; }

::selection { background: var(--color-yellow); color: var(--color-ink); }

:focus-visible {
  outline: 3px solid var(--color-blue);
  outline-offset: 2px;
  border-radius: 2px;
}

h1, h2, h3 {
  font-family: var(--font-display);
  color: var(--color-ink);
  margin: 0;
  line-height: 1.1;
}

h1 { font-size: clamp(2.6rem, 5.2vw, 4.2rem); font-weight: 800; letter-spacing: -0.03em; text-wrap: balance; }
h2 { font-size: clamp(1.8rem, 3.4vw, 2.6rem); font-weight: 700; letter-spacing: -0.02em; }
h3 { font-size: 1.25rem; font-weight: 700; }

p { margin: 0; }

.wrap {
  max-width: var(--wrap-w);
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-ink);
  color: #fff;
  padding: 12px 20px;
  border-radius: 0 0 10px 0;
  z-index: 999;
}
.skip-link:focus { left: 0; }

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ==========================================================================
   Header
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: var(--color-bg-soft);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-bottom: 1px solid transparent;
  transition: box-shadow 0.3s var(--ease-smooth), border-color 0.3s var(--ease-smooth), background 0.3s ease, backdrop-filter 0.3s ease;
}

.site-header.is-scrolled {
  background: rgba(255, 252, 247, 0.92);
  backdrop-filter: blur(14px) saturate(1.4);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  border-color: var(--color-border);
  box-shadow: 0 12px 30px -22px rgba(22, 32, 43, 0.5);
}


.header-inner {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-logo { height: 38px; width: auto; transition: opacity 0.3s ease; }
.brand-logo--full { display: none; }
.brand-logo--icon { display: none; height: 34px; }
.site-header.is-scrolled .brand-logo--icon { display: block; }

.brand-word {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--color-ink);
  letter-spacing: -0.01em;
}

.main-nav {
  display: flex;
  gap: 8px;
}

.main-nav a {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-text);
  padding: 10px 16px;
  border-radius: var(--radius-pill);
  transition: background 0.2s ease, color 0.2s ease;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  background: var(--color-bg-soft);
  color: var(--color-ink);
}

.nav-link--secondary {
  font-size: 0.85rem;
  color: var(--color-text-soft);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  border: none;
  background: transparent;
  border-radius: var(--radius-sm);
}
.nav-toggle span {
  display: block;
  height: 2.5px;
  width: 22px;
  background: var(--color-ink);
  border-radius: 2px;
  transition: transform 0.25s var(--ease-smooth), opacity 0.2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ==========================================================================
   Reveal-on-scroll
   ========================================================================== */

[data-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.6s var(--ease-smooth), transform 0.6s var(--ease-smooth);
}
[data-reveal].is-visible { opacity: 1; transform: translateY(0); }
[data-reveal-delay="1"] { transition-delay: 0.1s; }
[data-reveal-delay="2"] { transition-delay: 0.2s; }
[data-reveal-delay="3"] { transition-delay: 0.3s; }
[data-reveal-delay="4"] { transition-delay: 0.4s; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  [data-reveal] { opacity: 1; transform: none; transition: none; }
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; }
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 0.98rem;
  padding: 15px 28px;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  transition: background 0.25s var(--ease-smooth), border-color 0.25s var(--ease-smooth), transform 0.25s var(--ease-smooth), box-shadow 0.25s var(--ease-smooth);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--color-ink);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover { background: var(--color-ink-soft); box-shadow: var(--shadow-md); }

.btn-secondary {
  background: #fff;
  color: var(--color-ink);
  border-color: var(--color-yellow);
}
.btn-secondary:hover { background: var(--color-yellow-soft); }

.btn-large { padding: 17px 32px; font-size: 1.04rem; }

.btn-arrow { transition: transform 0.25s var(--ease-smooth); }
.btn:hover .btn-arrow { transform: translateX(4px); }
.btn:hover .btn-arrow[aria-hidden] { animation: btn-arrow-bounce 0.4s var(--ease-smooth); }
@keyframes btn-arrow-bounce {
  0%, 100% { transform: translateX(4px); }
  50% { transform: translateX(8px); }
}

.link-arrow {
  font-weight: 600;
  color: var(--color-blue);
  border-bottom: 2px solid transparent;
  transition: border-color 0.2s ease;
}
.link-arrow:hover { border-color: var(--color-blue); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-blue-dark);
  margin: 0 0 14px;
}
.section--app .eyebrow { color: var(--color-blue-dark); }

/* ==========================================================================
   Hero
   ========================================================================== */

.hero {
  padding: 64px 0 72px;
  background: var(--color-bg-soft);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero-logo {
  height: 140px;
  width: auto;
  margin-bottom: 28px;
}

.hero-headline {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  color: var(--color-ink);
  margin-bottom: 32px;
  text-wrap: balance;
}

.hero-buttons {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 320px;
}
.hero-buttons .btn {
  width: 100%;
  text-align: center;
}

.hero .btn-primary {
  box-shadow: none;
}

.btn-hero-outline {
  background: var(--color-blue);
  color: #fff;
  border: 2px solid var(--color-blue);
  box-shadow: none;
}
.btn-hero-outline:hover {
  background: var(--color-blue-dark);
  border-color: var(--color-blue-dark);
}

.hero-visual {
  position: relative;
}

.hero-photo {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  aspect-ratio: 3 / 2;
  object-fit: cover;
  transition: transform 0.6s var(--ease-smooth), box-shadow 0.6s var(--ease-smooth);
}
.hero-visual:hover .hero-photo {
  transform: scale(1.03) rotate(-1deg);
  box-shadow: var(--shadow-lg), 0 0 0 4px var(--color-yellow);
}

/* ==========================================================================
   Store badges
   ========================================================================== */

.store-badges { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }

.store-badge-link { display: flex; align-items: center; border-radius: var(--radius-sm); transition: transform 0.2s var(--ease-smooth); }
.store-badge-link:hover { transform: translateY(-2px); }

.store-badge {
  display: block;
  width: auto;
  transition: opacity 0.2s var(--ease-smooth);
}
.store-badge-link[href*="apple"] .store-badge { height: 40px; }
.store-badge-link[href*="google"] .store-badge { height: 58px; margin: -9px 0; }


/* ==========================================================================
   Sections (generic)
   ========================================================================== */

.section { padding: 80px 0; scroll-margin-top: var(--header-h); }
#top { scroll-margin-top: var(--header-h); }
.section--audio { background: var(--color-bg); }

.section--app {
  background: #fff;
  color: var(--color-text);
}
.section--app h2, .section--app h3, .section--app h4 { color: var(--color-ink); }
.section--app .section-lead { color: var(--color-text-soft); }
.section--app .link-arrow { color: var(--color-blue); }
.section--app .link-arrow:hover { border-color: var(--color-blue); }

.section-divider {
  display: flex;
  justify-content: center;
  padding: 24px 0;
  background: var(--color-bg);
}
.section-divider-img {
  height: 80px;
  width: auto;
  opacity: 1;
}

.section-head { max-width: 640px; margin-bottom: 52px; }
.section-lead { margin-top: 14px; color: var(--color-text-soft); font-size: 1.08rem; }

.audio-head {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 40px;
  margin-bottom: 56px;
}
.audio-head .section-head { margin-bottom: 0; }
.audio-visual {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 30px 50px rgba(23, 33, 43, 0.16));
}

/* ---- Hörbeispiele: App vs. Browser ---- */

.audio-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 32px;
}


/* ---- Card base ---- */
.audio-card {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  background: #fff;
  border: var(--border-hard);
  border-radius: var(--radius-card);
  padding: 48px 36px 36px;
  box-shadow: var(--shadow-hard);
  transition: transform 0.25s var(--ease-smooth), box-shadow 0.25s var(--ease-smooth);
}
.audio-card:hover { transform: translate(-3px, -3px); box-shadow: var(--shadow-hard-hover); }


.audio-card > p {
  color: var(--color-text-soft);
  font-size: 0.94rem;
  margin-bottom: 28px;
}

.audio-card .store-badges,
.audio-card .btn { margin-top: auto; }

.audio-card .store-badges { justify-content: center; }

/* ---- "Neu" banderole ---- */
.audio-card-flag {
  position: absolute;
  top: 0;
  right: 22px;
  z-index: 1;
  background: var(--color-ink);
  color: var(--color-yellow);
  font-size: 0.92rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 10px 20px 12px;
  border-radius: 0 0 10px 10px;
  box-shadow: 0 4px 10px -3px rgba(23, 33, 43, 0.35);
}

/* ---- Card icons ---- */
.audio-card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  margin-bottom: 22px;
}
.audio-card-icon--logo {
  border-radius: 22%;
  background: #fff;
  padding: 6px;
  border: 1.5px solid var(--color-border);
  box-shadow: 0 2px 8px rgba(23, 33, 43, 0.1);
}
.audio-card-icon--logo img { width: 100%; height: 100%; }
.audio-card-icon--browser {
  background: var(--color-yellow-soft);
  color: var(--color-ink);
  border: 1.5px solid var(--color-border);
  box-shadow: 0 2px 8px rgba(23, 33, 43, 0.1);
}

/* ---- Card typography ---- */
.audio-card h3 { font-size: 1.5rem; margin-bottom: 8px; }

.audio-card-btn {
  width: 100%;
  justify-content: center;
}

/* ---- Card button ---- */
.audio-card .btn-primary {
  background: var(--color-bg-soft);
  color: var(--color-ink);
  border: 2px solid var(--color-ink);
  box-shadow: none;
}
.audio-card .btn-primary:hover {
  background: var(--color-bg-soft);
  border-color: var(--color-ink);
}

/* ---- Accordions ---- */

.accordion {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #fff;
  transition: border-color 0.2s ease;
}
.accordion:hover { border-color: #d8d0bd; }
.section--audio .accordion {
  border-color: var(--color-border);
  box-shadow: none;
  margin-bottom: 32px;
  opacity: 0.85;
}
.section--audio .accordion:hover {
  opacity: 1;
}

.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  background: none;
  border: none;
  text-align: left;
  padding: 20px 22px;
  font-weight: 700;
  font-size: 0.98rem;
  color: var(--color-ink);
}

.accordion-icon {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--color-bg-soft);
  color: var(--color-ink);
  font-size: 0;
  transition: transform 0.3s var(--ease-smooth), background 0.2s ease;
}
.accordion-icon::before {
  content: "";
  display: block;
  width: 8px;
  height: 8px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  margin-top: -3px;
}
.accordion-trigger[aria-expanded="true"] .accordion-icon {
  transform: rotate(180deg);
  background: var(--color-bg-soft);
}

.accordion-panel {
  display: grid;
  grid-template-rows: minmax(0, 0fr);
  transition: grid-template-rows 0.4s var(--ease-smooth);
}
.accordion-panel > div { overflow: hidden; min-height: 0; }
.accordion-panel-inner { padding: 0 22px 22px; color: var(--color-text-soft); font-size: 0.92rem; }
.accordion-panel-inner .link-arrow { display: inline-block; margin-top: 10px; }

.mp3-form {
  margin: 16px 0 0;
}
.mp3-form-row {
  display: flex;
  gap: 8px;
  max-width: 440px;
}
.mp3-form-input {
  flex: 1;
  font: inherit;
  font-size: 0.92rem;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-ink);
  transition: border-color 0.2s ease;
}
.mp3-form-input:focus {
  outline: none;
  border-color: var(--color-blue);
}
.mp3-form-btn {
  padding: 12px 20px;
  font-size: 0.88rem;
  flex-shrink: 0;
}
.mp3-success[hidden],
.mp3-error[hidden] { display: none !important; }

.mp3-success {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 8px 0;
  animation: mp3-fade-in 0.4s var(--ease-smooth);
}
.mp3-success-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-green-soft);
  color: var(--color-green);
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 12px;
}
.mp3-success-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-ink);
  margin-bottom: 4px;
}
.mp3-success-text {
  font-size: 0.92rem;
  color: var(--color-text-soft);
}
.mp3-error {
  padding: 8px 0;
  color: var(--color-pink);
  font-size: 0.92rem;
  font-weight: 600;
  animation: mp3-fade-in 0.4s var(--ease-smooth);
}
.mp3-error button {
  background: none;
  border: none;
  font: inherit;
  color: var(--color-blue);
  cursor: pointer;
}
@keyframes mp3-fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
/* ---- Spickzettel Section ---- */
.section--spickzettel {
  background: var(--color-bg-soft);
  color: var(--color-text);
}
.section--spickzettel h2 { color: var(--color-ink); }
.section--spickzettel .section-lead { color: var(--color-text-soft); }

.spickzettel-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.spickzettel-form-row {
  display: flex;
  gap: 8px;
}
.spickzettel-form-row .mp3-form-input {
  background: #fff;
  border-color: var(--color-border);
  color: var(--color-ink);
}
.spickzettel-form-row .mp3-form-input:focus { border-color: var(--color-blue); }
.spickzettel-form-btn {
  flex-shrink: 0;
}
.spickzettel-hint {
  margin-top: 10px;
  font-size: 0.8rem;
  color: var(--color-text-soft);
}

.accordion-note {
  margin-top: 14px;
  font-size: 0.85rem;
  color: var(--color-text-soft);
  opacity: 0.7;
}
.accordion[data-open="true"] .accordion-panel { grid-template-rows: minmax(0, 1fr); }

/* ==========================================================================
   LernApp section (dark band)
   ========================================================================== */

.lernapp-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 40px;
}

/* ---- Phone showcase with glow ---- */
.lernapp-showcase {
  position: relative;
  display: flex;
  justify-content: center;
  margin-bottom: 40px;
}

.lernapp-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 320px;
  height: 420px;
  background: radial-gradient(ellipse, rgba(0, 136, 192, 0.1) 0%, rgba(255, 203, 28, 0.06) 50%, transparent 75%);
  border-radius: 50%;
  filter: blur(50px);
  pointer-events: none;
}

.lernapp-phone {
  position: relative;
  z-index: 1;
  width: min(100%, 680px);
  height: auto;
  filter: drop-shadow(0 20px 40px rgba(23, 33, 43, 0.2)) drop-shadow(0 4px 12px rgba(23, 33, 43, 0.1));
  animation: phone-float 6s ease-in-out infinite;
}

@keyframes phone-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

@media (prefers-reduced-motion: reduce) {
  .lernapp-phone { animation: none !important; }
}

/* ---- Feature tags ---- */
.lernapp-tags {
  display: flex;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.lernapp-tag {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-ink);
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  padding: 8px 18px;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}
.lernapp-tag:hover {
  background: var(--color-blue-soft);
  border-color: var(--color-blue);
  transform: translateY(-2px);
}

/* ---- CTA area ---- */
.lernapp-cta {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.license-box {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  max-width: 500px;
  margin: 0 auto;
  background: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 20px 24px;
}
.license-box p { font-weight: 600; font-size: 0.94rem; color: var(--color-ink); }
.license-box .btn-secondary {
  background: var(--color-yellow);
  color: var(--color-ink);
  border-color: var(--color-yellow);
  border-radius: var(--radius-sm);
}
.license-box .btn-secondary:hover { background: #ffd84d; }

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background: var(--color-yellow);
  color: var(--color-ink);
  padding: 56px 0 40px;
  scroll-margin-top: var(--header-h);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr 1fr;
  gap: 32px;
}

.footer-logo {
  height: 120px;
  width: auto;
}

.footer-col h3 {
  color: var(--color-ink);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 800;
  margin-bottom: 12px;
}
.footer-col p { color: rgba(23, 33, 43, 0.75); font-size: 0.92rem; line-height: 1.7; }
.footer-col a:hover { color: var(--color-ink); text-decoration: underline; }

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

@media (max-width: 900px) {
  .main-nav { display: none; }
  .nav-toggle { display: flex; }

  .site-header.nav-open .main-nav {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 12px;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-bg);
    padding: 24px;
    z-index: 99;
  }

  .site-header.nav-open .main-nav a {
    font-size: 1.8rem;
    font-family: var(--font-display);
    font-weight: 800;
    color: var(--color-ink);
    padding: 16px 24px;
  }

  .site-header.nav-open .main-nav a:hover {
    color: var(--color-blue);
    background: none;
  }

  .site-header.nav-open .nav-link--secondary {
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-body);
    color: var(--color-text-soft);
    margin-top: 20px;
  }

  .site-header.nav-open .nav-toggle {
    position: fixed;
    top: 17px;
    right: 24px;
    z-index: 100;
  }

  .hero { padding: 40px 0 56px; }
  .hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .hero-copy { text-align: center; }
  .hero-logo { height: 72px; margin-left: auto; margin-right: auto; }
  .hero-buttons { max-width: none; align-items: center; }
  .hero-visual { max-width: 420px; margin: 0 auto; }
  .audio-head { grid-template-columns: 1fr; }
  .audio-visual { max-width: 320px; margin: 0 auto; }
  .audio-cards { grid-template-columns: 1fr; }
  .spickzettel-inner { grid-template-columns: 1fr; text-align: center; }
  .spickzettel-form-row { flex-direction: column; }
  .spickzettel-hint { text-align: center; }

  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px) {
  .wrap { padding: 0 18px; }
  .hero { padding: 32px 0 40px; }
  .section { padding: 80px 0; }
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
}