/* =====================================================================
   Telefon App · Agentische Telefonanlage — Shared Dark-Tech Stylesheet
   Genutzt von index.html (Landing), vision.html, strategie/ (intern).
   Dunkles, technisches System. Marke: Emerald (#10b981) + Tinten-Schwarz.
   Fonts lokal (assets/fonts.css): Inter, Fraunces, JetBrains Mono.
   ===================================================================== */

:root {
  --bg:        #0a0d0c;
  --bg-2:      #0f1412;
  --bg-3:      #141a18;
  --panel:     #101614;
  --line:      rgba(255,255,255,.08);
  --line-2:    rgba(255,255,255,.14);
  --fg:        #e9edeb;
  --fg-soft:   #9aa49e;
  --fg-mute:   #656f69;
  --accent:    #10b981;
  --accent-2:  #34d399;
  --accent-3:  #6ee7b7;
  --accent-dim:rgba(16,185,129,.13);
  --accent-line:rgba(16,185,129,.28);
  --cyan:      #38bdf8;
  --cyan-dim:  rgba(56,189,248,.12);
  --amber:     #f5b544;
  --amber-dim: rgba(245,181,68,.13);
  --radius:    16px;
  --maxw:      1180px;
  --font-sans: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

* , *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-feature-settings: "cv02","cv03","cv04","cv11","ss01";
  color: var(--fg);
  background-color: var(--bg);
  background-image:
    radial-gradient(80% 60% at 85% -5%, rgba(16,185,129,.16), transparent 55%),
    radial-gradient(60% 50% at 0% 0%, rgba(56,189,248,.06), transparent 60%);
  background-attachment: fixed;
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
/* Feines Raster + Korn für Tech-Haptik */
body::before {
  content: ""; position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.022) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(120% 90% at 50% 0%, #000 40%, transparent 85%);
}
body > * { position: relative; z-index: 1; }

a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
h1,h2,h3,h4 { margin: 0; font-weight: 500; letter-spacing: -.02em; line-height: 1.08; }
p { margin: 0; }

.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 28px; }
@media (max-width: 640px) { .wrap { padding-inline: 20px; } }

/* ---- Mono kicker / labels ---- */
.mono { font-family: var(--font-mono); }
.kicker {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 12px; font-weight: 500;
  letter-spacing: .04em; color: var(--accent-3); text-transform: none;
}
.kicker::before { content: "//"; color: var(--accent); opacity: .8; }
.kicker.plain::before { content: ""; }

/* ---- chips / badges ---- */
.chip {
  display: inline-flex; align-items: center; gap: 7px;
  font-family: var(--font-mono); font-size: 11.5px; font-weight: 500;
  padding: 4px 10px; border-radius: 999px; border: 1px solid var(--line-2);
  color: var(--fg-soft); white-space: nowrap;
}
.chip .dot { width: 6px; height: 6px; border-radius: 999px; background: currentColor; }
.chip.live   { color: var(--accent-3); border-color: var(--accent-line); background: var(--accent-dim); }
.chip.soon   { color: var(--amber);    border-color: rgba(245,181,68,.3); background: var(--amber-dim); }
.chip.plan   { color: var(--fg-soft); }

/* ---- buttons ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  font-family: var(--font-sans); font-weight: 600; font-size: 15px;
  padding: 13px 22px; border-radius: 11px; cursor: pointer; border: 1px solid transparent;
  transition: transform .16s ease, box-shadow .16s ease, background .16s ease, border-color .16s ease;
  white-space: nowrap;
}
.btn svg { width: 17px; height: 17px; }
.btn-primary {
  background: var(--accent); color: #04120c;
  box-shadow: 0 0 0 1px rgba(16,185,129,.4), 0 10px 30px -12px rgba(16,185,129,.5);
}
.btn-primary:hover { transform: translateY(-1px); background: var(--accent-2); box-shadow: 0 0 0 1px rgba(52,211,153,.5), 0 14px 36px -12px rgba(16,185,129,.6); }
.btn-ghost { background: rgba(255,255,255,.02); color: var(--fg); border-color: var(--line-2); }
.btn-ghost:hover { background: rgba(255,255,255,.06); border-color: rgba(255,255,255,.24); transform: translateY(-1px); }
.btn-lg { padding: 16px 26px; font-size: 16px; }

/* ---- header ---- */
header.site {
  position: sticky; top: 0; z-index: 100;
  backdrop-filter: saturate(1.3) blur(12px);
  background: color-mix(in oklab, var(--bg) 72%, transparent);
  border-bottom: 1px solid transparent; transition: border-color .25s ease;
}
header.site.scrolled { border-bottom-color: var(--line); }
.nav { display: flex; align-items: center; gap: 18px; height: 66px; }
.brand { display: inline-flex; align-items: center; gap: 11px; font-weight: 600; font-size: 15.5px; letter-spacing: -.01em; }
.brand .mark {
  width: 34px; height: 34px; border-radius: 9px; background: #05130d; flex: none;
  display: grid; place-items: center; color: var(--accent-2);
  border: 1px solid var(--accent-line); box-shadow: 0 0 20px -6px rgba(16,185,129,.5) inset;
}
.brand .mark svg { width: 18px; height: 18px; }
.brand .tag { font-family: var(--font-mono); font-size: 10.5px; color: var(--fg-mute); border-left: 1px solid var(--line-2); padding-left: 9px; margin-left: 2px; }
.nav-links { display: flex; align-items: center; gap: 2px; margin-left: 12px; }
.nav-links a { font-size: 14px; font-weight: 500; color: var(--fg-soft); padding: 8px 12px; border-radius: 8px; transition: color .15s, background .15s; }
.nav-links a:hover { color: var(--fg); background: rgba(255,255,255,.05); }
.nav-cta { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.nav-phone { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-weight: 500; font-size: 13.5px; color: var(--fg); padding: 8px 4px; }
.nav-phone .ic { color: var(--accent); }
@media (max-width: 900px) { .nav-links { display: none; } .nav-phone .lbl { display: none; } }

/* ---- sections ---- */
.sec { padding: 92px 0; }
@media (max-width: 640px) { .sec { padding: 64px 0; } }
.sec-head { max-width: 64ch; }
.sec-head.center { margin-inline: auto; text-align: center; }
.sec-head h2 { font-family: var(--font-display); font-size: clamp(2rem, 3.8vw, 3rem); margin-top: 16px; letter-spacing: -.015em; }
.sec-head p { margin-top: 16px; color: var(--fg-soft); font-size: 1.06rem; }
.rule { height: 1px; background: linear-gradient(90deg, var(--line), transparent); border: 0; margin: 0; }

/* ---- generic cards ---- */
.card {
  background: linear-gradient(180deg, rgba(255,255,255,.025), rgba(255,255,255,.005));
  border: 1px solid var(--line); border-radius: var(--radius); padding: 26px;
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.card:hover { transform: translateY(-3px); border-color: var(--accent-line); box-shadow: 0 20px 50px -30px rgba(16,185,129,.5); }
.card .ic { width: 44px; height: 44px; border-radius: 11px; display: grid; place-items: center; background: var(--accent-dim); color: var(--accent-2); border: 1px solid var(--accent-line); margin-bottom: 16px; }
.card .ic svg { width: 21px; height: 21px; }
.card h3 { font-size: 1.16rem; margin-bottom: 8px; }
.card p { color: var(--fg-soft); font-size: 14.5px; }

/* ---- footer ---- */
footer.site { border-top: 1px solid var(--line); background: var(--bg-2); margin-top: 40px; }
.foot-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 40px; padding: 56px 0 36px; }
@media (max-width: 860px) { .foot-grid { grid-template-columns: 1fr 1fr; gap: 32px; } }
.foot-brand p { margin-top: 14px; color: var(--fg-soft); font-size: 14px; max-width: 32ch; }
.foot-col h4 { font-family: var(--font-mono); font-size: 12px; font-weight: 500; letter-spacing: .04em; color: var(--fg-mute); margin: 0 0 14px; }
.foot-col a { display: block; font-size: 14px; color: var(--fg-soft); padding: 5px 0; transition: color .15s; }
.foot-col a:hover { color: var(--accent-2); }
.foot-bottom { border-top: 1px solid var(--line); padding: 20px 0; display: flex; flex-wrap: wrap; gap: 10px 20px; align-items: center; font-size: 13px; color: var(--fg-mute); font-family: var(--font-mono); }
.foot-bottom .dot { width: 6px; height: 6px; border-radius: 999px; background: var(--accent); }

/* ---- reveal ---- */
.reveal { opacity: 0; transform: translateY(16px); transition: opacity .7s cubic-bezier(.2,.7,.2,1), transform .7s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }

.skip { position: absolute; left: -999px; top: 8px; background: var(--accent); color: #04120c; padding: 10px 16px; border-radius: 8px; z-index: 200; }
.skip:focus { left: 12px; }
:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 3px; border-radius: 4px; }