/* ============================================================
   KälteToolbox — Design-System
   Charakter: Werkstatt-Instrument / Datenblatt.
   Hot/Cold-Dualität (Eis-Cyan ↔ Signal-Amber) als Marken-Code
   des Kältekreislaufs. Selbst gehostete Fonts, kein Drittanbieter.
   ============================================================ */

/* --- Schriften (selbst gehostet, kein Google-CDN) --------- */
@font-face {
  font-family: "Space Grotesk";
  font-style: normal; font-weight: 500; font-display: swap;
  src: url("fonts/space-grotesk-500.woff2") format("woff2");
}
@font-face {
  font-family: "Space Grotesk";
  font-style: normal; font-weight: 700; font-display: swap;
  src: url("fonts/space-grotesk-700.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal; font-weight: 400; font-display: swap;
  src: url("fonts/ibm-plex-sans-400.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Sans";
  font-style: normal; font-weight: 600; font-display: swap;
  src: url("fonts/ibm-plex-sans-600.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal; font-weight: 400; font-display: swap;
  src: url("fonts/ibm-plex-mono-400.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal; font-weight: 500; font-display: swap;
  src: url("fonts/ibm-plex-mono-500.woff2") format("woff2");
}
@font-face {
  font-family: "IBM Plex Mono";
  font-style: normal; font-weight: 600; font-display: swap;
  src: url("fonts/ibm-plex-mono-600.woff2") format("woff2");
}

:root {
  /* Kalte Basis — leicht stahlblauer Unterton statt Neutral-Schwarz */
  --bg:            #0B0F14;
  --bg-deep:       #070A0E;
  --surface:       #121821;
  --surface-2:     #18202B;
  --line:          #28323F;
  --line-soft:     rgba(255,255,255,0.06);

  --text:          #EEF3F8;
  --text-2:        #9BA8B8;
  --text-3:        #7C8A9C; /* AA: 4,5:1 auf --bg/--surface (war #5E6B7B ~3,5:1) */

  /* Kalt-Seite (Verdampfer) */
  --cold:          #4CC9F0;
  --cold-deep:     #2A93C9;
  /* Heiß-Seite (Verdichter/Verflüssiger) — Signalfarbe */
  --hot:           #FF8A3D;
  --hot-deep:      #E36A1E;

  --font-display:  "Space Grotesk", system-ui, sans-serif;
  --font-body:     "IBM Plex Sans", system-ui, -apple-system, sans-serif;
  --font-mono:     "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --r-sm: 8px;
  --r:    14px;
  --r-lg: 22px;
  --maxw: 1140px;

  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

html, body { overflow-x: hidden; }

/* Anker-Ziele unter dem 64px-Sticky-Header freistellen */
[id] { scroll-margin-top: 80px; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  /* Blueprint-Raster als feines Marken-Motiv, sehr dezent */
  background-image:
    linear-gradient(rgba(76,201,240,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(76,201,240,0.025) 1px, transparent 1px);
  background-size: 64px 64px;
  background-position: center top;
}

::selection { background: var(--hot); color: #1a0d03; }

a { color: var(--cold); text-decoration: none; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }

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

/* Visually-hidden Utility (z. B. <caption class="sr-only">) */
.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;
}

/* Skip-Link: off-screen, bei :focus sichtbar oben links */
.skip-link {
  position: fixed;
  top: 12px; left: -9999px;
  z-index: 100;
  padding: 10px 16px;
  border-radius: 999px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14px;
  color: var(--bg-deep);
  background: var(--cold);
  box-shadow: 0 6px 22px -8px rgba(76,201,240,0.6);
}
.skip-link:focus { left: 12px; }

/* ============================================================
   Header
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: saturate(160%) blur(10px);
  -webkit-backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--line-soft);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.01em;
  color: var(--text);
}
.brand .mark { width: auto; height: 30px; display: block; }
.brand:hover .mark { transform: rotate(90deg); }
.brand .mark { transition: transform 0.6s var(--ease); }

.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  color: var(--text-2);
  font-size: 14px;
  font-weight: 500;
  padding: 7px 12px;
  border-radius: 999px;
  transition: color 0.2s, background 0.2s;
}
.nav a:hover { color: var(--text); background: var(--surface-2); }
.nav .nav-cta {
  color: var(--bg-deep);
  background: var(--cold);
  font-weight: 600;
}
.nav .nav-cta:hover { background: #6ad3f3; color: var(--bg-deep); }

/* Zugängliches Mobil-Menü (<details class="nav-menu">, kein JS).
   Desktop: Links inline, Hamburger versteckt. Mobil: siehe @media 880. */
.nav-menu { display: inline-flex; align-items: center; }
.nav-menu > summary { display: none; }
.nav-menu .nav-links { display: inline-flex; align-items: center; gap: 4px; }

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 13px 22px;
  border-radius: 999px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 16px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.18s var(--ease), background 0.2s, border-color 0.2s, box-shadow 0.2s;
}
.btn svg { width: 18px; height: 18px; }
.btn-primary {
  background: var(--cold);
  color: var(--bg-deep);
  box-shadow: 0 6px 22px -8px rgba(76,201,240,0.6);
}
.btn-primary:hover { background: #6ad3f3; transform: translateY(-2px); box-shadow: 0 12px 28px -10px rgba(76,201,240,0.7); }
.btn-primary:active { transform: translateY(0); }
.btn-secondary {
  background: transparent;
  color: var(--text);
  border-color: var(--line);
}
.btn-secondary:hover { border-color: var(--cold); color: var(--cold); transform: translateY(-2px); }
.btn-soon { cursor: default; }
.btn-soon:hover { transform: none; background: var(--cold); box-shadow: 0 6px 22px -8px rgba(76,201,240,0.6); }
.btn-soon .soon-dot {
  width: 8px; height: 8px; border-radius: 999px;
  background: var(--bg-deep); opacity: 0.55;
  animation: soonpulse 1.6s ease-in-out 8;
}
@keyframes soonpulse { 0%,100% { opacity: 0.25; } 50% { opacity: 0.85; } }

/* ============================================================
   Editorial-Bausteine: Sektionsnummer & Kicker
   ============================================================ */
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cold);
}
.section-tag::before {
  content: attr(data-index);
  color: var(--text-3);
}
.section-tag .rule {
  width: 38px; height: 1px;
  background: linear-gradient(90deg, var(--cold), transparent);
}

section.block {
  padding: 92px 0;
  /* Trenner blendet an den Rändern aus, statt hart Rand-zu-Rand zu laufen */
  border-top: 1px solid transparent;
  border-image: linear-gradient(90deg, transparent, rgba(255,255,255,0.09) 28%, rgba(255,255,255,0.09) 72%, transparent) 1;
}
.section-head { max-width: 62ch; margin-bottom: 48px; }
.section-head h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(28px, 4.2vw, 44px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin: 16px 0 14px;
}
.section-head .lead { color: var(--text-2); font-size: 18px; max-width: 56ch; }

/* ============================================================
   Hero-Signature: log p–h-Diagramm (Glas-Karte im Hero-Panel)
   ============================================================ */
.hero-figure {
  position: relative;
  background:
    radial-gradient(120% 120% at 70% 0%, rgba(255,138,61,0.08), transparent 55%),
    var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: 22px;
  box-shadow: 0 30px 70px -40px rgba(0,0,0,0.9);
}
.hero-figure figcaption {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-3);
  margin-top: 14px;
  letter-spacing: 0.03em;
}
.hero-figure figcaption b { color: var(--text-2); font-weight: 500; }
.hero-figure svg { display: block; width: 100%; height: auto; }
/* Animation der Kreisprozess-Linie */
.cycle-path {
  stroke-dasharray: 4 5;
  animation: flow 2.6s linear 6;
}
@keyframes flow { to { stroke-dashoffset: -90; } }

/* ============================================================
   Große Blur-Kachel (Panel) + Frost-Glow-Background
   Eigener Mesh statt Stock-Foto; Cyan/Blau + Amber-Akzent.
   ============================================================ */
.panel {
  position: relative;
  border-radius: 30px;
  border: 1px solid rgba(255,255,255,0.08);
  overflow: hidden;
  isolation: isolate;
  box-shadow: 0 40px 90px -50px rgba(0,0,0,0.95);
}
.panel > .frost {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(60% 80% at 18% 22%, rgba(76,201,240,0.32), transparent 60%),
    radial-gradient(55% 70% at 85% 18%, rgba(120,90,255,0.22), transparent 62%),
    radial-gradient(70% 90% at 92% 92%, rgba(255,138,61,0.20), transparent 60%),
    radial-gradient(50% 60% at 50% 100%, rgba(42,147,201,0.25), transparent 70%),
    linear-gradient(160deg, #0e1822, #0a0f16 70%);
  filter: saturate(125%);
}
.panel > .frost::after {
  /* feine Körnung gegen den „zu glatten" KI-Look */
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.4;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.5'/%3E%3C/svg%3E");
  mix-blend-mode: overlay;
}
.panel .sparkle {
  position: absolute;
  color: rgba(255,255,255,0.5);
  pointer-events: none;
  animation: twinkle 4s ease-in-out 6;
}
.panel .sparkle svg { width: 100%; height: 100%; display: block; }
@keyframes twinkle { 0%,100% { opacity: 0.25; transform: scale(0.85); } 50% { opacity: 0.9; transform: scale(1.1); } }

/* Glasmorphismus-Karte */
.glass {
  background: rgba(255,255,255,0.07);
  backdrop-filter: blur(12px) saturate(160%);
  -webkit-backdrop-filter: blur(12px) saturate(160%);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 20px;
  box-shadow: 0 20px 50px -24px rgba(0,0,0,0.8), inset 0 1px 0 rgba(255,255,255,0.18);
}

/* Pill-Eyebrow im Panel (heller, mit Dot) */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: rgba(255,255,255,0.95);
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: 999px;
  padding: 6px 14px 6px 12px;
  backdrop-filter: blur(6px);
}
.pill .led { width: 7px; height: 7px; border-radius: 999px; background: var(--cold); box-shadow: 0 0 9px var(--cold); }

/* Hero als großes Panel */
.hero-panel { padding: 0; margin: 28px 0 0; }
.hero-panel .pad {
  position: relative;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
  padding: 64px clamp(28px, 5vw, 64px);
}
.hero-panel .pad > *,
.panel .split > * { min-width: 0; max-width: 100%; }
.hero-panel p.sub { overflow-wrap: break-word; hyphens: auto; }
.panel-head h2 { overflow-wrap: break-word; }
.hero-panel h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(31px, 5.6vw, 66px);
  line-height: 1.04;
  letter-spacing: -0.03em;
  margin: 20px 0 18px;
  overflow-wrap: break-word;
}
.hero-panel h1 .accent {
  background: linear-gradient(100deg, var(--cold), #8ad9ee 45%, var(--hot));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-panel p.sub { color: rgba(238,243,248,0.9); font-size: clamp(17px, 2vw, 20px); max-width: 44ch; margin-bottom: 28px; }
.hero-panel .cta-row { display: flex; gap: 14px; flex-wrap: wrap; }

/* Vertrauenszeile: Sprach-Pills statt Avatar-Stack */
.who { display: flex; align-items: center; gap: 14px; margin-top: 30px; }
.who .stack { display: flex; }
.who .stack span {
  width: 34px; height: 34px;
  margin-left: -10px;
  border-radius: 999px;
  display: grid; place-items: center;
  font-family: var(--font-mono);
  font-size: 11px; font-weight: 600;
  color: var(--bg-deep);
  border: 2px solid #0e1822;
}
.who .stack span:first-child { margin-left: 0; }
.who .stack .s1 { background: #4CC9F0; }
.who .stack .s2 { background: #7DA8FF; }
.who .stack .s3 { background: #B98AFF; }
.who .stack .s4 { background: #FF8A3D; }
.who .who-text { font-size: 14px; color: rgba(238,243,248,0.9); max-width: 26ch; line-height: 1.45; }

/* Phone-Frame für App-Screenshots */
.phone {
  width: min(248px, 64vw);
  aspect-ratio: 9 / 19.3;
  border-radius: 38px;
  padding: 9px;
  background: linear-gradient(160deg, #2a3543, #11161d);
  box-shadow: 0 30px 70px -28px rgba(0,0,0,0.85), inset 0 0 0 1px rgba(255,255,255,0.08);
}
.phone .screen {
  position: relative;
  width: 100%; height: 100%;
  border-radius: 30px;
  overflow: hidden;
  background: var(--surface);
}
.phone .screen img { width: 100%; height: 100%; object-fit: cover; object-position: top center; display: block; }

/* Screenshot-Galerie */
.gallery-wrap { padding: 56px clamp(24px, 5vw, 60px) 60px; }
.gallery-wrap .panel-head h2 { color: #fff; margin-bottom: 0; }
.gallery {
  display: flex;
  justify-content: center;
  align-items: flex-end;
  gap: clamp(14px, 3vw, 36px);
  margin-top: 44px;
  flex-wrap: wrap;
}
.shot { display: flex; flex-direction: column; align-items: center; }
.shot .phone { width: min(216px, 66vw); transition: transform 0.3s var(--ease); }
.shot.raised .phone { transform: translateY(-26px); }
.shot:hover .phone { transform: translateY(-8px); }
.shot.raised:hover .phone { transform: translateY(-34px); }
.shot figcaption {
  margin-top: 16px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.03em;
  color: rgba(238,243,248,0.9);
  text-align: center;
}
.shot.raised figcaption { margin-top: -10px; }
@media (max-width: 720px) {
  .gallery { align-items: center; }
  .shot.raised .phone, .shot.raised:hover .phone { transform: none; }
  .shot.raised figcaption { margin-top: 16px; }
}

/* Schritte (nummeriert) */
.steps { display: grid; gap: 22px; }
.step { display: flex; gap: 16px; align-items: flex-start; }
.step .n {
  flex: none;
  width: 36px; height: 36px;
  border-radius: 999px;
  display: grid; place-items: center;
  font-family: var(--font-mono); font-weight: 600; font-size: 15px;
  color: var(--bg-deep);
  background: linear-gradient(135deg, var(--cold), var(--hot));
}
.step h3 { font-family: var(--font-display); font-weight: 500; font-size: 19px; margin-bottom: 4px; letter-spacing: -0.01em; }
.step p { color: rgba(238,243,248,0.9); font-size: 15px; }

/* Generisches Panel-Section-Layout (Steps, Showcase) */
.panel .split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: center;
  padding: 56px clamp(28px, 5vw, 60px);
}
.panel .split.media-left { grid-template-columns: 1.1fr 0.9fr; }
.panel .panel-head .section-tag { color: #fff; }
.panel .panel-head .section-tag::before { color: rgba(255,255,255,0.45); }
.panel .panel-head h2 {
  font-family: var(--font-display); font-weight: 700;
  font-size: clamp(26px, 3.6vw, 40px); line-height: 1.08;
  letter-spacing: -0.02em; margin: 14px 0 28px;
}
.media-stage { display: grid; place-items: center; }

@media (max-width: 880px) {
  .hero-panel .pad { grid-template-columns: 1fr; gap: 36px; }
  .panel .split, .panel .split.media-left { grid-template-columns: 1fr; gap: 36px; }
  .panel .split .media-stage { order: -1; }
}

/* ============================================================
   Feature-Bento (asymmetrisch statt Uniform-Grid)
   ============================================================ */
.bento {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}
.feature {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--r);
  padding: 26px;
  grid-column: span 2;
  transition: transform 0.25s var(--ease), border-color 0.25s, background 0.25s;
  overflow: hidden;
}
.feature.wide { grid-column: span 3; }
.feature.full { grid-column: span 6; }
.feature::after {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 2px;
  background: var(--cold);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s var(--ease);
}
.feature:hover { transform: translateY(-4px); border-color: var(--line); background: var(--surface-2); }
.feature:hover::after { transform: scaleX(1); }
.feature.warm::after { background: var(--hot); }
.feature .ico {
  display: grid; place-items: center;
  width: 44px; height: 44px;
  border-radius: 11px;
  background: rgba(76,201,240,0.1);
  color: var(--cold);
  margin-bottom: 16px;
}
.feature.warm .ico { background: rgba(255,138,61,0.12); color: var(--hot); }
.feature .ico svg { width: 22px; height: 22px; }
.feature h3 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 18px;
  letter-spacing: -0.01em;
  margin-bottom: 7px;
}
.feature p { color: var(--text-2); font-size: 15px; }

@media (max-width: 900px) {
  .bento { grid-template-columns: repeat(2, 1fr); }
  .feature, .feature.wide, .feature.full { grid-column: span 1; }
}

/* ============================================================
   Werkzeug-Liste
   ============================================================ */
.tools {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 10px;
}
.tool {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-sm);
  padding: 13px 15px;
  transition: border-color 0.2s, transform 0.2s, background 0.2s;
}
.tool:hover { border-color: var(--line); transform: translateX(3px); background: var(--surface-2); }
.tool .dot { width: 7px; height: 7px; border-radius: 999px; flex: none; background: var(--text-3); }
.tool.is-free .dot { background: var(--cold); box-shadow: 0 0 8px var(--cold); }
.tool.is-pro .dot { background: var(--hot); box-shadow: 0 0 8px var(--hot); }
.tool .name { font-size: 15px; font-weight: 500; flex: 1; }
.tool .tag {
  font-family: var(--font-mono);
  font-size: 10.5px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid currentColor;
}
.tool.is-free .tag { color: var(--cold); }
.tool.is-pro .tag { color: var(--hot); }

.tools-legend {
  display: flex; gap: 22px; flex-wrap: wrap;
  margin-top: 22px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  color: var(--text-2);
}
.tools-legend span { display: inline-flex; align-items: center; gap: 8px; }
.tools-legend i { width: 8px; height: 8px; border-radius: 999px; display: block; }
.tools-legend .l-free { background: var(--cold); }
.tools-legend .l-pro { background: var(--hot); }

/* ============================================================
   Pricing
   ============================================================ */
.pricing {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}
.plan {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--r);
  padding: 30px 26px;
  transition: border-color 0.2s, transform 0.2s;
}
.plan:hover { border-color: var(--line); transform: translateY(-3px); }
.plan.featured {
  border-color: var(--hot);
  background:
    radial-gradient(120% 90% at 50% 0%, rgba(255,138,61,0.1), transparent 60%),
    var(--surface);
}
.plan .ribbon {
  position: absolute;
  top: -11px; left: 26px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--bg-deep);
  background: var(--hot);
  padding: 3px 11px;
  border-radius: 999px;
}
.plan .plan-name {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-2);
  margin-bottom: 14px;
}
.plan .price {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
}
.plan .price small { font-family: var(--font-mono); font-size: 14px; color: var(--text-3); font-weight: 400; letter-spacing: 0; }
.plan .note { color: var(--text-2); font-size: 14px; margin-top: 12px; }
.plan.featured .note { color: var(--hot); }
/* Kostenlos-Karte: dezenter Cyan-Akzent (Free = Kalt-Seite), kein Ribbon */
.plan.plan-free {
  border-color: rgba(76,201,240,0.4);
  background:
    radial-gradient(120% 90% at 50% 0%, rgba(76,201,240,0.09), transparent 60%),
    var(--surface);
}
.plan.plan-free .note { color: var(--cold); }

@media (max-width: 980px) { .pricing { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .pricing { grid-template-columns: 1fr; } }

/* ============================================================
   Kältemittel-Datenblatt
   ============================================================ */
.table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--r);
  background: var(--surface);
}
table { width: 100%; border-collapse: collapse; }
caption:not(.sr-only) { display: none; }
th, td { padding: 13px 18px; text-align: left; border-bottom: 1px solid var(--line-soft); }
thead th {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-2);
  font-weight: 500;
  background: var(--surface-2);
  border-bottom-color: var(--line);
}
tbody tr { transition: background 0.15s; }
tbody tr:hover { background: var(--surface-2); }
tbody tr:last-child td { border-bottom: none; }
td .rname { font-family: var(--font-mono); font-weight: 500; font-size: 15px; color: var(--text); }
td .rsub { color: var(--text-3); font-size: 13px; }
td.num, th.num { text-align: right; font-family: var(--font-mono); font-variant-numeric: tabular-nums; }
.type-pill {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  padding: 2px 9px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--text-2);
}
/* GWP als kleiner Balken (eigene Grafik statt nackter Zahl) */
.gwp { display: inline-flex; align-items: center; gap: 9px; justify-content: flex-end; }
.gwp .bar {
  width: 64px; height: 5px; border-radius: 999px;
  background: var(--line);
  overflow: hidden;
}
.gwp .bar i {
  display: block; height: 100%;
  background: linear-gradient(90deg, var(--cold), var(--hot));
  border-radius: 999px;
}
.gwp .val { min-width: 4ch; }
.gwp.low .val { color: var(--cold); }

/* ============================================================
   Disclaimer-Notiz (Datenblatt-Stil)
   ============================================================ */
.note-box {
  border-left: 2px solid var(--line);
  padding: 4px 0 4px 18px;
  color: var(--text-3);
  font-size: 14px;
  font-family: var(--font-mono);
  line-height: 1.6;
  max-width: 80ch;
  margin-top: 26px;
}
.disclaim-section { padding: 60px 0; }
.disclaim-section .note-box { margin: 0 auto; max-width: 78ch; }

/* ============================================================
   Inline-Demo-Rechner (Datenblatt-Optik, Zahlen in Mono)
   Struktur (index.html): form.demo-calc >
     .dc-field > (label + .dc-input > input + .dc-unit)
     .dc-op
     .dc-field
     .dc-result > (.dc-result-label + output.dc-value[.is-negative])
   ============================================================ */
.demo-calc {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 22px;
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: 14px 16px;
}
.dc-field { flex: 1 1 150px; display: grid; gap: 7px; }
.dc-field > label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-2);
}
.dc-input { position: relative; display: flex; align-items: center; }
.dc-input input {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  padding: 11px 40px 11px 13px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 17px;
  font-variant-numeric: tabular-nums;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.dc-input input:focus {
  outline: none;
  border-color: var(--cold);
  box-shadow: 0 0 0 3px rgba(76,201,240,0.18);
}
.dc-unit {
  position: absolute;
  right: 13px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--text-2);
  pointer-events: none;
}
.dc-op {
  align-self: flex-end;
  padding-bottom: 10px;
  font-family: var(--font-mono);
  font-size: 22px;
  color: var(--text-3);
}
.dc-result {
  flex: 1 1 100%;
  display: flex;
  align-items: baseline;
  gap: 10px;
  padding: 14px 16px;
  border-radius: var(--r-sm);
  background:
    radial-gradient(120% 140% at 0% 0%, rgba(76,201,240,0.1), transparent 60%),
    var(--surface-2);
  border: 1px solid var(--line);
}
.dc-result-label {
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-2);
  margin-right: auto;
}
.dc-value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 34px;
  letter-spacing: -0.02em;
  line-height: 1;
  color: var(--cold);
  font-variant-numeric: tabular-nums;
}
/* negative Überhitzung = Nassdampf im Saugrohr → Warnton statt Cyan */
.dc-value.is-negative { color: #e0a341; }

/* ============================================================
   Schluss-CTA
   ============================================================ */
.endcta { position: relative; text-align: center; padding: clamp(64px, 9vw, 104px) 28px; }
.endcta h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(30px, 5vw, 50px);
  letter-spacing: -0.03em;
  line-height: 1.05;
  margin-bottom: 18px;
}
.endcta p { color: var(--text-2); font-size: 18px; max-width: 48ch; margin: 0 auto 30px; }
.endcta .cta-row { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ============================================================
   Rechtstexte (prose)
   ============================================================ */
.prose { max-width: 760px; margin: 0 auto; padding: 64px 0 96px; }
.prose .section-tag { margin-bottom: 18px; }
.prose h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(32px, 5vw, 44px);
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}
.prose h2 {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 21px;
  letter-spacing: -0.01em;
  margin: 40px 0 12px;
  padding-top: 20px;
  border-top: 1px solid var(--line-soft);
}
.prose p, .prose li { color: var(--text-2); margin-bottom: 12px; }
.prose ul { padding-left: 22px; }
.prose strong { color: var(--text); }
.prose a { border-bottom: 1px solid rgba(76,201,240,0.35); }
.prose a:hover { border-bottom-color: var(--cold); }
.prose .meta { color: var(--text-3); font-family: var(--font-mono); font-size: 14px; }

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  border-top: 1px solid var(--line-soft);
  padding: 44px 0;
  margin-top: 24px;
  background: var(--bg-deep);
}
.site-footer .container {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  align-items: center;
  justify-content: space-between;
}
.site-footer .foot-brand { display: inline-flex; align-items: center; gap: 10px; color: var(--text-2); }
.site-footer .foot-brand .mark { width: auto; height: 22px; }
.site-footer .copy { color: var(--text-3); font-family: var(--font-mono); font-size: 13px; }
.site-footer .links { display: flex; gap: 20px; }
.site-footer .links a { color: var(--text-2); font-size: 14px; }
.site-footer .links a:hover { color: var(--text); }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 880px) {
  .hero-figure { order: -1; }
  section.block { padding: 68px 0; }

  /* Mobil: Hamburger sichtbar, Links als Dropdown-Panel bei [open] */
  .nav-menu { position: relative; }
  .nav-menu > summary {
    display: grid; place-items: center;
    width: 40px; height: 40px;
    list-style: none; cursor: pointer;
    color: var(--text-2);
    border-radius: 999px;
    transition: color 0.2s, background 0.2s;
  }
  .nav-menu > summary::-webkit-details-marker { display: none; }
  .nav-menu > summary:hover,
  .nav-menu[open] > summary { color: var(--text); background: var(--surface-2); }
  .nav-menu > summary svg { width: 22px; height: 22px; display: block; }

  .nav-menu .nav-links {
    display: none;
    position: absolute;
    top: calc(100% + 12px); right: 0;
    flex-direction: column;
    align-items: stretch;
    min-width: 208px;
    padding: 8px;
    background: color-mix(in srgb, var(--surface) 96%, transparent);
    border: 1px solid var(--line);
    border-radius: var(--r);
    box-shadow: 0 24px 50px -24px rgba(0,0,0,0.9);
  }
  .nav-menu[open] .nav-links { display: flex; }
  .nav-menu .nav-links a { padding: 10px 14px; border-radius: var(--r-sm); }
}
@media (max-width: 520px) {
  .container { padding: 0 18px; }
  body { font-size: 16px; }
}