/* ============================================================
   STONE IT — Base / Design Tokens
   ============================================================ */
:root{
  /* brand */
  --navy:#143557;
  --navy-deep:#0e273f;
  --blue:#2e86bd;          /* brand mid, lifted for dark bg */
  --blue-bright:#4aa6e0;
  --blue-soft:#7fb2d8;
  --blue-glow:#5db4ee;

  /* surfaces */
  --black:#05070b;
  --ink:#0a0e15;
  --panel:#0f141d;
  --panel-2:#131a25;
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);

  /* text */
  --white:#eef3f8;
  --fog:#aeb9c7;
  --muted:#76828f;
  --dim:#525c68;

  --font:'Space Grotesk',system-ui,-apple-system,'Segoe UI',sans-serif;
  --mono:'Space Mono','Space Grotesk',ui-monospace,monospace;

  --maxw:1180px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font);
  background:var(--black);
  color:var(--white);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
::selection{background:var(--blue);color:#fff}

h1,h2,h3{font-weight:600;line-height:1.04;letter-spacing:-.02em}
.mono{font-family:var(--mono);letter-spacing:.04em}

/* shared layout */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.eyebrow{
  font-family:var(--mono);font-size:12px;letter-spacing:.32em;
  text-transform:uppercase;color:var(--blue-soft);
  display:inline-flex;align-items:center;gap:10px;
}
.eyebrow::before{content:"";width:26px;height:1px;background:var(--blue);display:inline-block}

/* ===== Top navigation (revealed after intro) ===== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:90;
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 28px;
  background:linear-gradient(180deg,rgba(5,7,11,.92),rgba(5,7,11,0));
  backdrop-filter:blur(6px);
  transform:translateY(-110%);
  transition:transform .5s var(--ease),background .4s ease;
  pointer-events:none;
}
.nav.show{transform:translateY(0);pointer-events:auto}
.nav.solid{background:rgba(7,10,16,.86);border-bottom:1px solid var(--line-soft)}
.nav-logo{height:30px;width:auto}
.nav-links{display:flex;gap:30px;align-items:center}
.nav-links a{
  font-size:14px;color:var(--fog);letter-spacing:.01em;
  position:relative;padding:4px 0;transition:color .25s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;
  background:var(--blue-bright);transition:width .3s var(--ease);
}
.nav-links a:hover{color:var(--white)}
.nav-links a:hover::after{width:100%}
.nav-cta{
  display:inline-flex;align-items:center;line-height:1;
  color:var(--fog);font-size:14px;padding:4px 0;position:relative;
  transition:color .25s ease;
}
.nav-cta::after{
  content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;
  background:var(--blue-bright);transition:width .3s var(--ease);
}
.nav-cta:hover{color:var(--white)}
.nav-cta:hover::after{width:100%}

/* ===== Leistungen dropdown ===== */
.nav-item{position:relative;display:flex;align-items:center}
.nav-item .drop-trigger{font-size:14px;color:var(--fog);display:inline-flex;align-items:center;gap:6px;padding:4px 0;position:relative;transition:color .25s ease}
.nav-item .drop-trigger:hover{color:var(--white)}
.nav-item .caret{font-size:10px;transition:transform .3s var(--ease);opacity:.7}
.nav-item.has-drop:hover .caret{transform:rotate(180deg)}
.nav-drop{
  position:absolute;top:100%;left:50%;margin-top:14px;
  transform:translateX(-50%) translateY(10px);
  min-width:286px;background:rgba(10,14,21,.97);border:1px solid var(--line);
  border-radius:14px;padding:8px;display:flex;flex-direction:column;gap:2px;
  opacity:0;visibility:hidden;pointer-events:none;
  box-shadow:0 26px 64px -22px rgba(0,0,0,.75);backdrop-filter:blur(12px);
  transition:opacity .3s var(--ease),transform .3s var(--ease),visibility .3s;
}
.nav-drop::before{content:"";position:absolute;left:0;right:0;top:-16px;height:18px}
.nav-item.has-drop:hover .nav-drop{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0)}
.nav-drop a{
  display:flex;align-items:center;gap:13px;padding:11px 14px;border-radius:9px;
  font-size:14px;color:var(--fog);width:auto;white-space:nowrap;
  opacity:0;transform:translateY(8px);
  transition:background .2s,color .2s,opacity .35s var(--ease),transform .35s var(--ease);
}
.nav-item.has-drop:hover .nav-drop a{opacity:1;transform:translateY(0)}
.nav-drop a:nth-child(1){transition-delay:.03s}
.nav-drop a:nth-child(2){transition-delay:.07s}
.nav-drop a:nth-child(3){transition-delay:.11s}
.nav-drop a:nth-child(4){transition-delay:.15s}
.nav-drop a:nth-child(5){transition-delay:.19s}
.nav-drop a:nth-child(6){transition-delay:.23s}
.nav-drop a .dn{font-family:var(--mono);font-size:11px;color:var(--blue);letter-spacing:.05em}
.nav-drop a:hover{background:var(--panel-2);color:#fff}
.nav-drop a:hover .dn{color:var(--blue-bright)}

.nav-burger{display:none}

@media(max-width:820px){
  .nav-links{
    position:absolute;top:100%;right:0;left:0;
    flex-direction:column;align-items:flex-start;gap:0;
    background:rgba(8,11,17,.98);border-top:1px solid var(--line-soft);
    max-height:0;overflow:hidden;transition:max-height .4s var(--ease);
  }
  .nav-links.open{max-height:420px}
  .nav-links a{padding:15px 28px;width:100%;border-bottom:1px solid var(--line-soft)}
  .nav-item{display:block;width:100%}
  .nav-item .drop-trigger{padding:15px 28px;width:100%;border-bottom:1px solid var(--line-soft)}
  .nav-item .caret{display:none}
  .nav-drop{
    position:static;transform:none;opacity:1;visibility:visible;pointer-events:auto;
    margin:0;min-width:0;border:none;border-radius:0;padding:0;background:rgba(255,255,255,.02);
    box-shadow:none;backdrop-filter:none;
  }
  .nav-drop::before{display:none}
  .nav-drop a{opacity:1;transform:none;padding:13px 28px 13px 44px;border-bottom:1px solid var(--line-soft);transition-delay:0s !important}
  .nav-cta{margin:0;padding:15px 28px;width:100%;font-size:15px}
  .nav-cta::after{display:none}
  .nav-burger{display:flex;flex-direction:column;gap:5px;padding:6px}
  .nav-burger span{width:24px;height:2px;background:var(--white);transition:.3s}
}