/* =====================================================================
   VOKALIS – Stylesheet
   Farben & Typografie aus dem Brand-System (CSS-Variablen), Mobile-First
   ===================================================================== */

:root {
  /* --- Farben --- */
  --petrol:        #0F3D3E;   /* Primär */
  --petrol-deep:   #0A2C2D;   /* dunklere Variante für Footer/CTA */
  --amber:         #E0A458;   /* Sekundär / Akzent */
  --amber-deep:    #C98A3D;   /* Akzent Hover */
  --ivory:         #F7F4EF;   /* Neutral – Hintergrund */
  --surface:       #FFFFFF;   /* Neutral – Karten */
  --ink:           #1A2424;   /* Neutral – Text */
  --muted:         #6B7976;   /* Neutral – Sekundärtext / Linien */
  --line:          #E4DED3;   /* feine Trennlinien auf Ivory */

  /* --- Typografie --- */
  --font-head: 'Spectral', Georgia, 'Times New Roman', serif;
  --font-body: 'Hanken Grotesk', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;

  --fs-display: clamp(2.75rem, 6vw + 1rem, 4.5rem);
  --fs-h2:      clamp(1.75rem, 3vw + 0.5rem, 2.5rem);
  --fs-h3:      1.375rem;
  --fs-lead:    clamp(1.0625rem, 1vw + 0.9rem, 1.25rem);
  --fs-body:    1.0625rem;
  --fs-small:   0.875rem;

  /* --- Spacing-System (4px-Raster) --- */
  --s-1: 0.5rem;
  --s-2: 1rem;
  --s-3: 1.5rem;
  --s-4: 2rem;
  --s-5: 3rem;
  --s-6: 4.5rem;
  --s-7: 7rem;

  --radius: 16px;
  --radius-sm: 10px;
  --shadow: 0 18px 50px -28px rgba(15, 61, 62, 0.45);
  --container: 1140px;
}

/* --- Reset / Basis --- */
*, *::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: var(--fs-body);
  line-height: 1.65;
  color: var(--ink);
  background: var(--ivory);
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 600;
  line-height: 1.12;
  color: var(--petrol);
  letter-spacing: -0.01em;
  margin: 0;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--s-3);
}

/* --- Eyebrow Label --- */
.eyebrow {
  font-size: var(--fs-small);
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--amber-deep);
  margin: 0 0 var(--s-2);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 1rem;
  padding: 0.85rem 1.6rem;
  border-radius: 999px;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, background-color .2s ease, color .2s ease, border-color .2s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn--solid { background: var(--petrol); color: var(--ivory); }
.btn--solid:hover { background: var(--petrol-deep); }
.btn--ghost { background: transparent; color: var(--petrol); border-color: var(--petrol); }
.btn--ghost:hover { background: var(--petrol); color: var(--ivory); }
.btn--sm { padding: 0.6rem 1.15rem; font-size: 0.95rem; }
.btn--lg { padding: 1.05rem 2.2rem; font-size: 1.1rem; }

/* =====================================================================
   HEADER / NAV
   ===================================================================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(247, 244, 239, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
}
.nav__brand img { width: 150px; height: auto; }
.nav__toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px; height: 44px;
  padding: 10px;
  background: transparent;
  border: 0;
  cursor: pointer;
}
.nav__toggle span {
  display: block;
  height: 2px;
  background: var(--petrol);
  border-radius: 2px;
}
.nav__menu {
  display: none;
  flex-direction: column;
  gap: var(--s-2);
  position: absolute;
  left: 0; right: 0; top: 100%;
  background: var(--ivory);
  border-bottom: 1px solid var(--line);
  padding: var(--s-3);
}
.nav__menu.is-open { display: flex; }
.nav__menu a { font-weight: 500; color: var(--ink); }
.nav__menu a.btn { color: var(--ivory); }

/* =====================================================================
   HERO
   ===================================================================== */
.hero { padding: var(--s-6) 0; }
.hero__grid { display: grid; gap: var(--s-5); }
.hero h1 { font-size: var(--fs-display); margin-bottom: var(--s-3); }
.lead { font-size: var(--fs-lead); color: var(--muted); max-width: 34ch; margin: 0 0 var(--s-4); }
.hero__cta { display: flex; flex-wrap: wrap; gap: var(--s-2); }
.hero__note { font-size: var(--fs-small); color: var(--muted); margin-top: var(--s-4); }

.hero__visual { display: flex; justify-content: center; }
.wave-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: var(--s-4);
  max-width: 420px;
  width: 100%;
}
.wave-card__label {
  display: inline-block;
  font-size: var(--fs-small);
  font-weight: 600;
  color: var(--amber-deep);
  margin-bottom: var(--s-3);
}
.wave { width: 100%; height: auto; }
.wave-card__transcript {
  font-family: var(--font-head);
  font-size: 1.25rem;
  color: var(--petrol);
  line-height: 1.4;
  margin: var(--s-3) 0 0;
}

/* =====================================================================
   SECTIONS
   ===================================================================== */
.section { padding: var(--s-6) 0; }
.section--tint { background: var(--surface); border-block: 1px solid var(--line); }
.section__head { max-width: 60ch; margin-bottom: var(--s-5); }
.section__head h2 { font-size: var(--fs-h2); margin-bottom: var(--s-3); }
.section__intro { color: var(--muted); font-size: var(--fs-lead); margin: 0; }

/* --- Aufgabenliste --- */
.task-list ul {
  list-style: none;
  margin: 0; padding: 0;
  display: grid;
  gap: var(--s-3);
}
.task-list li {
  position: relative;
  padding-left: 2rem;
  color: var(--muted);
}
.task-list li strong { color: var(--ink); font-weight: 600; }
.task-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 0.55em;
  width: 12px; height: 12px;
  border-radius: 3px;
  background: var(--amber);
}

/* --- Features --- */
.features { display: grid; gap: var(--s-4); }
.feature {
  background: var(--ivory);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: var(--s-4);
}
.section--tint .feature { background: var(--ivory); }
.feature__num {
  display: block;
  font-family: var(--font-head);
  font-size: 1.5rem;
  color: var(--amber-deep);
  margin-bottom: var(--s-2);
}
.feature h3 { font-size: var(--fs-h3); margin-bottom: var(--s-2); }
.feature p { color: var(--muted); margin: 0; }

/* --- Split (Für Ihre Praxis) --- */
.split { display: grid; gap: var(--s-5); }
.split__text h2 { font-size: var(--fs-h2); margin-bottom: var(--s-3); }
.split__text p { color: var(--muted); margin: 0 0 var(--s-3); }
.split__text .btn { margin-top: var(--s-2); }
.split__stats { display: grid; gap: var(--s-3); }
.stat {
  background: var(--surface);
  border: 1px solid var(--line);
  border-left: 4px solid var(--amber);
  border-radius: var(--radius-sm);
  padding: var(--s-3) var(--s-4);
}
.stat__value {
  display: block;
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 600;
  color: var(--petrol);
}
.stat__label { color: var(--muted); font-size: var(--fs-small); }

/* =====================================================================
   CTA
   ===================================================================== */
.cta { background: var(--petrol); color: var(--ivory); padding: var(--s-6) 0; }
.cta__inner { text-align: center; max-width: 56ch; margin-inline: auto; }
.cta h2 { color: var(--ivory); font-size: var(--fs-h2); margin-bottom: var(--s-3); }
.cta p { color: rgba(247, 244, 239, 0.82); font-size: var(--fs-lead); margin: 0 0 var(--s-4); }
.cta .btn--solid { background: var(--amber); color: var(--petrol-deep); }
.cta .btn--solid:hover { background: var(--amber-deep); }

/* =====================================================================
   FOOTER
   ===================================================================== */
.site-footer { background: var(--petrol-deep); color: rgba(247,244,239,0.78); padding: var(--s-6) 0 var(--s-4); }
.footer__grid { display: grid; gap: var(--s-4); }
.footer__logo { filter: none; }
.footer__brand p { font-family: var(--font-head); color: var(--ivory); margin: var(--s-2) 0 0; }
.footer__col h4 { color: var(--ivory); font-family: var(--font-body); font-size: var(--fs-small); letter-spacing: 0.12em; text-transform: uppercase; margin: 0 0 var(--s-2); }
.footer__col p { margin: 0; line-height: 1.9; }
.footer__col a:hover { color: var(--amber); }
.footer__base {
  margin-top: var(--s-5);
  padding-top: var(--s-3);
  border-top: 1px solid rgba(247,244,239,0.15);
  font-size: var(--fs-small);
}
/* Footer-Logo auf dunklem Grund einfärben (Mono-SVG ist petrol) */
.footer__logo { opacity: 0.95; }

/* =====================================================================
   RESPONSIVE – ab Tablet/Desktop
   ===================================================================== */
@media (min-width: 768px) {
  .container { padding-inline: var(--s-4); }
  .nav__toggle { display: none; }
  .nav__menu {
    display: flex;
    flex-direction: row;
    align-items: center;
    gap: var(--s-4);
    position: static;
    background: transparent;
    border: 0;
    padding: 0;
  }
  .hero__grid { grid-template-columns: 1.1fr 0.9fr; align-items: center; }
  .task-list ul { grid-template-columns: 1fr 1fr; gap: var(--s-3) var(--s-5); }
  .features { grid-template-columns: repeat(3, 1fr); }
  .split { grid-template-columns: 1fr 0.85fr; align-items: center; }
  .footer__grid { grid-template-columns: 1.4fr 1fr 1fr 1fr; }
}

@media (min-width: 1024px) {
  .hero { padding: var(--s-7) 0; }
}

/* Footer-Logo: Mono-SVG ist petrol -> auf dunklem Grund unsichtbar.
   Wir nutzen daher eine helle Darstellung via CSS-Filter (Invertierung
   der petrolfarbenen Flächen zu hell). */
.footer__logo { filter: brightness(0) invert(0.92); }

/* ── Demo-Formular (im dunklen CTA-Bereich) ───────────────────────── */
.demo-form{max-width:640px;margin:28px auto 0;text-align:left}
.demo-form__grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.demo-field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
.demo-field--full{margin-top:0}
.demo-field > span{font-size:.82rem;font-weight:600;color:#F7F4EF;opacity:.92;letter-spacing:.01em}
.demo-form input,.demo-form textarea{
  font:inherit;font-size:1rem;color:#1A2424;background:#F7F4EF;
  border:1px solid rgba(247,244,239,.25);border-radius:10px;padding:12px 14px;width:100%;
}
.demo-form input::placeholder,.demo-form textarea::placeholder{color:#6B7976}
.demo-form input:focus,.demo-form textarea:focus{outline:none;border-color:#E0A458;box-shadow:0 0 0 3px rgba(224,164,88,.35)}
.demo-form textarea{resize:vertical;min-height:84px}
.demo-form .btn{margin-top:6px;width:100%;justify-content:center}
.demo-form__note{font-size:.78rem;color:#F7F4EF;opacity:.7;margin-top:12px;text-align:center}
.demo-thanks{max-width:560px;margin:28px auto 0;text-align:center;background:rgba(247,244,239,.08);border:1px solid rgba(224,164,88,.4);border-radius:14px;padding:28px 24px}
.demo-thanks h3{color:#F7F4EF;margin:0 0 8px}
.demo-thanks p{color:#F7F4EF;opacity:.85;margin:0}
@media (max-width:560px){.demo-form__grid{grid-template-columns:1fr}}