/* ============================================================
   betriebsarzt-software.de — geteiltes Stylesheet
   ============================================================ */
:root {
  --ink: #0E2230;
  --petrol-900: #0C2A33;
  --petrol-700: #115E67;
  --petrol-600: #157C82;
  --petrol-500: #1B9AA0;
  --aqua-300: #7FD1CE;
  --aqua-100: #DCF0EE;
  --sand: #F4EFE7;
  --canvas: #FAF7F1;
  --paper: #FFFFFF;
  --amber: #E0A04B;
  --coral: #D9694C;
  --line: #E5DED2;
  --muted: #5C6E72;
  --shadow-sm: 0 1px 2px rgba(14,34,48,.05), 0 6px 18px -10px rgba(14,34,48,.16);
  --shadow-lg: 0 2px 6px rgba(14,34,48,.06), 0 30px 60px -28px rgba(12,42,51,.32);
  --display: 'Fraunces', Georgia, serif;
  --body: 'Archivo', system-ui, sans-serif;
}
* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--body); background: var(--canvas); color: var(--ink); line-height: 1.6; -webkit-font-smoothing: antialiased; overflow-x: hidden; }
.wrap { width: min(1200px, 92vw); margin: 0 auto; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
body::before { content:''; position: fixed; inset: 0; z-index: 0; pointer-events: none; background-image: radial-gradient(rgba(14,34,48,.035) 1px, transparent 1px); background-size: 26px 26px; opacity: .5; }

/* buttons */
.btn { display: inline-flex; align-items: center; gap: .55rem; font-family: var(--body); font-weight: 600; font-size: .98rem; padding: .85rem 1.5rem; border-radius: 999px; border: 1.5px solid transparent; cursor: pointer; transition: transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease; }
.btn-primary { background: var(--petrol-700); color: #fff; box-shadow: 0 10px 24px -10px rgba(17,94,103,.7); }
.btn-primary:hover { background: var(--petrol-600); transform: translateY(-2px); box-shadow: 0 16px 32px -12px rgba(17,94,103,.8); }
.btn-ghost { border-color: var(--line); background: var(--paper); color: var(--ink); }
.btn-ghost:hover { border-color: var(--petrol-600); color: var(--petrol-700); transform: translateY(-2px); }
.btn-light { background: var(--aqua-300); color: var(--petrol-900); }
.btn-light:hover { background: #9bdcd9; transform: translateY(-2px); }

/* header */
header { position: sticky; top: 0; z-index: 100; backdrop-filter: blur(12px); background: rgba(250,247,241,.82); border-bottom: 1px solid var(--line); }
.nav { display: flex; align-items: center; gap: 2rem; padding: .9rem 0; }
.brand { display: flex; align-items: center; gap: .7rem; font-family: var(--display); font-weight: 600; font-size: 1.18rem; letter-spacing: -.01em; }
.brand .mark { width: 38px; height: 38px; border-radius: 11px; flex-shrink: 0; background: linear-gradient(150deg, var(--petrol-600), var(--petrol-900)); display: grid; place-items: center; box-shadow: inset 0 1px 0 rgba(255,255,255,.2); }
.brand small { display:block; font-family: var(--body); font-weight: 500; font-size: .62rem; letter-spacing: .18em; text-transform: uppercase; color: var(--petrol-600); margin-top: 1px; }
.nav-links { display: flex; gap: 1.7rem; margin-left: auto; font-size: .94rem; font-weight: 500; }
.nav-links a { color: var(--muted); transition: color .15s; }
.nav-links a:hover, .nav-links a.active { color: var(--petrol-700); }
.nav .btn { padding: .6rem 1.2rem; font-size: .9rem; }

/* sections */
section { position: relative; z-index: 2; }
.section-pad { padding: 5.5rem 0; }
.sec-head { max-width: 42rem; margin-bottom: 3rem; }
.sec-head.center { margin-inline: auto; text-align: center; }
.kicker { font-size: .8rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--petrol-600); margin-bottom: .9rem; }
.sec-head h2 { font-family: var(--display); font-weight: 600; font-size: clamp(2rem, 3.6vw, 2.8rem); line-height: 1.1; letter-spacing: -.02em; margin-bottom: 1rem; }
.sec-head p { font-size: 1.1rem; color: var(--muted); }

/* footer */
footer { background: var(--petrol-900); color: rgba(230,242,241,.7); padding: 3.5rem 0 2rem; }
.foot-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 2.5rem; margin-bottom: 2.5rem; }
.foot-brand .brand { color: #fff; margin-bottom: 1rem; }
.foot-brand p { font-size: .9rem; max-width: 22rem; }
.foot-col h4 { color: #fff; font-size: .82rem; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 1rem; }
.foot-col a { display: block; font-size: .92rem; margin-bottom: .6rem; transition: color .15s; }
.foot-col a:hover { color: var(--aqua-300); }
.foot-bottom { border-top: 1px solid rgba(255,255,255,.1); padding-top: 1.6rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; font-size: .84rem; }

/* reveal */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s cubic-bezier(.2,.8,.2,1), transform .7s cubic-bezier(.2,.8,.2,1); }
.reveal.in { opacity: 1; transform: none; }

@media (max-width: 940px) { .nav-links { display: none; } .foot-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .foot-grid { grid-template-columns: 1fr; } }