/* =========================================================
   Silke Kuhm – One Pager
   Farben aus dem Logo, Systemschriften (keine externen Fonts,
   daher keine Datenübertragung an Dritte)
   ========================================================= */

:root {
  --orange: #e85a32;
  --orange-dark: #c9461f;
  --grey-dark: #4f555c;
  --grey: #6b7178;
  --grey-light: #9aa0a6;
  --line: #e3e5e8;
  --tint: #f5f6f7;
  --white: #ffffff;
  --text: #2f3439;

  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --max: 1080px;
  --radius: 10px;
}

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 90px; }

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--orange-dark); }
a:hover { color: var(--orange); }

h1, h2, h3 { color: var(--grey-dark); line-height: 1.2; margin: 0 0 .6em; }

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, .95);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--line);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
}

.logo img { width: 220px; }

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.main-nav a {
  color: var(--grey);
  text-decoration: none;
  font-size: .95rem;
  font-weight: 500;
}

.main-nav a:hover { color: var(--orange); }

.main-nav .nav-cta {
  color: var(--white);
  background: var(--grey-dark);
  padding: 8px 18px;
  border-radius: 999px;
}

.main-nav .nav-cta:hover { background: var(--orange); color: var(--white); }

/* ---------- Hero ---------- */

.hero {
  padding: 110px 0 100px;
  position: relative;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  align-items: center;
  gap: 48px;
}

/* Hero-Grafik (inline SVG) */
.hero-visual { position: relative; }

.hero-graphic { position: relative; width: 100%; height: auto; display: block; }

/* Logo-Zeichen als Wasserzeichen hinter der Grafik */
.hero-watermark {
  position: absolute;
  width: 105%;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  opacity: .06;
  pointer-events: none;
}
.wm-grey   { fill: var(--grey); }
.wm-orange { fill: var(--orange); }

.g-tangle,
.g-line,
.g-line-dark,
.g-arrow,
.g-handle,
.g-plan-link,
.g-build-link {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.g-tangle    { stroke: var(--grey-light); stroke-width: 2.5; }
.g-line      { stroke: var(--grey-light); stroke-width: 2; stroke-dasharray: 2 8; }
.g-arrow     { stroke: var(--grey-light); stroke-width: 2; }
.g-line-dark { stroke: var(--grey-dark); stroke-width: 3; }

.g-lens   { fill: rgba(255, 255, 255, .85); stroke: var(--grey-dark); stroke-width: 7; }
.g-handle { stroke: var(--grey-dark); stroke-width: 12; }

.g-plan-link { stroke: var(--grey); stroke-width: 2.5; stroke-dasharray: 4 5; }
.g-plan      { fill: var(--white); stroke: var(--grey); stroke-width: 3; }

.g-build-link { stroke: var(--orange); stroke-width: 4; }
.g-build      { fill: var(--orange); }

.g-label {
  font-family: var(--font);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  fill: var(--grey);
}

.g-label-strong { fill: var(--grey-dark); font-weight: 700; }
.g-label-accent { fill: var(--orange); }

/* sanftes Einblenden der Schritte */
@media (prefers-reduced-motion: no-preference) {
  .g-step { opacity: 0; animation: step-in .6s ease-out forwards; }
  .g-step-1 { animation-delay: .15s; }
  .g-step-2 { animation-delay: .5s; }
  .g-step-3 { animation-delay: .85s; }
}

@keyframes step-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.kicker {
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .8rem;
  font-weight: 600;
  color: var(--orange);
  margin: 0 0 20px;
}

.hero h1 {
  font-size: clamp(2.3rem, 5.5vw, 4rem);
  font-weight: 700;
  letter-spacing: -.02em;
  margin-bottom: 32px;
}

.accent { color: var(--orange); }

.lead {
  max-width: 640px;
  font-size: 1.15rem;
  color: var(--grey);
  margin: 0 0 40px;
}

.button {
  display: inline-block;
  background: var(--orange);
  color: var(--white);
  text-decoration: none;
  font-weight: 600;
  padding: 14px 30px;
  border-radius: 999px;
  transition: background .2s;
}

.button:hover { background: var(--orange-dark); color: var(--white); }

/* ---------- Sections ---------- */

.section { padding: 90px 0; }

.section-tinted { background: var(--tint); }

.section-title {
  font-size: .85rem;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--grey-light);
  font-weight: 600;
  margin-bottom: 40px;
}

.section-title::before {
  content: "";
  display: inline-block;
  width: 28px;
  height: 3px;
  background: var(--orange);
  vertical-align: middle;
  margin-right: 12px;
  border-radius: 2px;
}

/* ---------- Steps ---------- */

.steps {
  list-style: none;
  padding: 0;
  margin: 0 0 56px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.step {
  border-top: 3px solid var(--line);
  padding-top: 20px;
}

.step:nth-child(1) { border-top-color: var(--grey-dark); }
.step:nth-child(2) { border-top-color: var(--grey); }
.step:nth-child(3) { border-top-color: var(--orange); }

.step-no {
  display: block;
  font-size: .85rem;
  font-weight: 600;
  color: var(--orange);
  margin-bottom: 8px;
}

.step h3 { font-size: 1.4rem; margin-bottom: 8px; }

.step p { margin: 0; color: var(--grey); }

.prose { max-width: 720px; }

.prose p { margin: 0 0 1em; font-size: 1.1rem; }

/* ---------- Cards ---------- */

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 32px 28px;
  border: 1px solid var(--line);
  border-left: 4px solid var(--orange);
}

.card h3 { font-size: 1.15rem; }

.card p { margin: 0; color: var(--grey); font-size: 1rem; }

/* ---------- Hintergrund ---------- */

.two-col {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 40px;
}

.two-col .section-title { margin-bottom: 0; }

.prose-text { max-width: 680px; margin: 0 0 1em; font-size: 1.1rem; }

.tags {
  list-style: none;
  padding: 0;
  margin: 8px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tags li {
  border: 1px solid var(--line);
  color: var(--grey-dark);
  padding: 6px 16px;
  border-radius: 999px;
  font-size: .95rem;
}

/* ---------- Kontakt ---------- */

.contact {
  background: var(--grey-dark);
  color: var(--white);
}

.contact .section-title { color: #c4c8cc; }

.contact-head {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 40px;
  margin-bottom: 48px;
}

.contact-intro {
  font-size: 1.35rem;
  max-width: 620px;
  margin: 0;
}

.portrait {
  width: 220px;
  height: 220px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--orange);
  box-shadow: 0 10px 30px rgba(0, 0, 0, .25);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.contact-grid p { margin: 0; font-size: 1.1rem; }

.contact-label {
  font-size: .8rem !important;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: #c4c8cc;
  margin-bottom: 6px !important;
}

.contact a { color: var(--white); text-decoration-color: var(--orange); text-underline-offset: 4px; }
.contact a:hover { color: var(--orange); }

/* ---------- Footer ---------- */

.site-footer {
  background: #3f444a;
  color: #c4c8cc;
  padding: 32px 0 40px;
  font-size: .9rem;
}

.site-footer a { color: #e6e8ea; }

.legal {
  border-bottom: 1px solid rgba(255, 255, 255, .12);
}

.legal summary {
  cursor: pointer;
  padding: 14px 0;
  color: var(--white);
  font-weight: 600;
  list-style: none;
}

.legal summary::-webkit-details-marker { display: none; }

.legal summary::after {
  content: "+";
  float: right;
  color: var(--orange);
  font-size: 1.2rem;
  line-height: 1;
}

.legal[open] summary::after { content: "–"; }

.legal-body { padding: 4px 0 24px; max-width: 760px; }

.legal-note { font-style: italic; }

.legal dl {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 8px 24px;
  margin: 0 0 16px;
}

.legal dt { color: var(--white); }
.legal dd { margin: 0; }

.copyright { margin: 28px 0 0; color: var(--grey-light); }

/* ---------- Responsive ---------- */

@media (max-width: 860px) {
  .steps,
  .cards,
  .contact-grid { grid-template-columns: 1fr; }

  .two-col { grid-template-columns: 1fr; gap: 24px; }

  .main-nav a:not(.nav-cta) { display: none; }

  .hero { padding: 72px 0 64px; }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { max-width: 520px; }

  .contact-head { grid-template-columns: 1fr; gap: 28px; }
  .portrait { width: 160px; height: 160px; order: -1; }

  .section { padding: 64px 0; }

  .legal dl { grid-template-columns: 1fr; gap: 2px; }
  .legal dd { margin-bottom: 10px; }
}

@media (max-width: 480px) {
  .logo img { width: 170px; }
  .container { padding: 0 16px; }
}