/* site.css — One-Pager (Startseite) */

/* ---------- Navigation ---------- */

.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(245, 246, 251, 0.82);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.nav--scrolled {
  border-bottom-color: var(--line-soft);
  box-shadow: var(--shadow-sm);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  height: 74px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
}

.brand:hover {
  color: var(--ink);
}

.brand__mark {
  width: 42px;
  height: 42px;
  flex: none;
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.06rem;
  letter-spacing: 0.08em;
  color: var(--ink);
}

.brand__text small {
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.58rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-top: 0.3rem;
}

.nav__brand {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.nav__ai {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 0.45em;
  border: 0;
  background: none;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
  cursor: pointer;
  transition: color 0.15s ease;
}

.nav__ai:hover,
.nav__ai:focus-visible {
  color: var(--primary);
  outline: none;
}

.nav__ai:focus-visible {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.nav__ai-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 0 0 rgba(91, 92, 214, 0.45);
  animation: ai-pulse 2.4s ease-out infinite;
}

@keyframes ai-pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(91, 92, 214, 0.45);
  }
  70% {
    box-shadow: 0 0 0 6px rgba(91, 92, 214, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(91, 92, 214, 0);
  }
}

.ai-pop {
  position: absolute;
  top: calc(100% + 10px);
  left: max(0px, calc(50% - var(--container) / 2));
  width: min(350px, calc(100% - 2rem));
  background: #17192b;
  border: 1px solid rgba(195, 199, 244, 0.22);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  opacity: 0;
  transform: translateY(-8px);
  pointer-events: none;
  transition: opacity 0.22s ease, transform 0.22s ease;
  z-index: 60;
}

.ai-pop.is-open {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.ai-pop__bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 9px 12px;
  border-bottom: 1px solid rgba(195, 199, 244, 0.14);
}

.ai-pop__bar span:nth-child(1),
.ai-pop__bar span:nth-child(2),
.ai-pop__bar span:nth-child(3) {
  width: 9px;
  height: 9px;
  border-radius: 50%;
}

.ai-pop__bar span:nth-child(1) {
  background: #f56565;
}

.ai-pop__bar span:nth-child(2) {
  background: #ecc94b;
}

.ai-pop__bar span:nth-child(3) {
  background: #48bb78;
}

.ai-pop__title {
  margin-left: 6px;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: #8f95c9;
}

.ai-pop__body {
  margin: 0;
  padding: 12px 14px 14px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  line-height: 1.75;
  color: #cdd1f2;
  overflow-x: auto;
}

.ai-pop__body .ai-pop__cmd {
  color: #94e2c5;
}

.ai-pop__body .ai-pop__cursor {
  display: inline-block;
  margin-left: 0.1em;
  color: #94e2c5;
  animation: ai-blink 1.1s steps(1) infinite;
}

@keyframes ai-blink {
  50% {
    opacity: 0;
  }
}

.ai-pop__sr {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 1.9rem;
}

.nav__links > a:not(.btn) {
  font-size: 0.94rem;
  font-weight: 500;
  color: var(--ink-soft);
  transition: color 0.15s ease;
}

.nav__links > a:not(.btn):hover {
  color: var(--ink);
}

.nav__burger {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  border: 1px solid var(--line);
  background: var(--surface);
  position: relative;
}

.nav__burger span,
.nav__burger span::before,
.nav__burger span::after {
  content: "";
  position: absolute;
  left: 50%;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--ink);
  transform: translateX(-50%);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav__burger span {
  top: 50%;
  margin-top: -1px;
}

.nav__burger span::before {
  top: -6px;
}

.nav__burger span::after {
  top: 6px;
}

.nav__burger[aria-expanded="true"] span {
  background: transparent;
}

.nav__burger[aria-expanded="true"] span::before {
  transform: translateX(-50%) translateY(-5px) rotate(45deg);
}

.nav__burger[aria-expanded="true"] span::after {
  transform: translateX(-50%) translateY(5px) rotate(-45deg);
}

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

.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(4rem, 9vw, 7rem) 0 clamp(3.5rem, 7vw, 5.5rem);
  background:
    radial-gradient(52rem 30rem at 85% -10%, rgba(143, 149, 236, 0.16), transparent 60%),
    radial-gradient(40rem 26rem at -10% 110%, rgba(91, 92, 214, 0.08), transparent 60%);
}

.hero__grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(2.5rem, 5vw, 4.5rem);
  align-items: center;
}

.hero h1 .hl {
  color: var(--primary);
  position: relative;
  white-space: nowrap;
}

.hero h1 .hl::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0.08em;
  height: 0.28em;
  background: var(--lav-soft);
  z-index: -1;
  border-radius: 4px;
}

.hero .lead {
  margin-top: 1.4rem;
  max-width: 34rem;
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 2.2rem;
}

.hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 2.4rem;
  margin-top: 3rem;
  padding-top: 1.8rem;
  border-top: 1px dashed var(--line);
}

.hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.hero__facts strong {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--primary);
}

.hero__facts em {
  font-style: normal;
  font-size: 0.85rem;
  color: var(--ink-faint);
}

/* Hero-Grafik */

.hero__art {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 340px;
}

.hero__art::before {
  content: "";
  position: absolute;
  width: 340px;
  height: 340px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(143, 149, 236, 0.22), transparent 65%);
}

.cube {
  width: min(360px, 78%);
  position: relative;
}

.cube__line {
  fill: none;
  stroke: var(--primary);
  stroke-width: 2.4;
  stroke-linejoin: round;
  stroke-linecap: round;
}

.cube__face--top {
  fill: rgba(195, 199, 244, 0.35);
}

.cube__face--left {
  fill: rgba(143, 149, 236, 0.22);
}

.cube__face--right {
  fill: rgba(91, 92, 214, 0.30);
}

.cube__dot {
  fill: var(--primary-deep);
}

.chip {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.9rem;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--line-soft);
  box-shadow: var(--shadow-sm);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--ink-soft);
  white-space: nowrap;
  animation: chip-float 7s ease-in-out infinite;
}

.chip svg {
  width: 15px;
  height: 15px;
  color: var(--primary);
}

.chip--1 { top: 6%; left: 2%; }
.chip--2 { top: 16%; right: -2%; animation-delay: 1.6s; }
.chip--3 { bottom: 14%; left: -4%; animation-delay: 3.1s; }
.chip--4 { bottom: 2%; right: 8%; animation-delay: 4.4s; }

@keyframes chip-float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-9px);
  }
}

/* ---------- Leistungen ---------- */

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  padding: 1.9rem 1.7rem;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--lav-soft);
}

.card__icon {
  width: 48px;
  height: 48px;
  border-radius: 13px;
  background: var(--lav-wash);
  color: var(--primary);
  display: grid;
  place-items: center;
  margin-bottom: 1.25rem;
}

.card__icon svg {
  width: 24px;
  height: 24px;
}

.card h3 {
  margin-bottom: 0.55rem;
}

.card p {
  color: var(--ink-soft);
  font-size: 0.94rem;
}

.card__hint {
  margin-top: 1.1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  color: var(--ink-faint);
}

/* ---------- Vorgehen ---------- */

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
  counter-reset: step;
}

.step {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  padding: 2rem 1.8rem 1.8rem;
}

.step__num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  color: var(--primary);
}

.step h3 {
  margin: 0.7rem 0 0.5rem;
}

.step p {
  color: var(--ink-soft);
  font-size: 0.94rem;
}

.step:not(:last-child)::after {
  content: "→";
  position: absolute;
  top: 50%;
  right: -1.35rem;
  transform: translateY(-50%);
  color: var(--lavender-soft);
  font-size: 1.3rem;
}

/* ---------- Über uns ---------- */

.about__grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(2.5rem, 5vw, 4.5rem);
  align-items: start;
}

.about__text p + p {
  margin-top: 1.1rem;
  color: var(--ink-soft);
}

.about__text strong {
  color: var(--ink);
}

.about__card {
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
  box-shadow: var(--shadow-sm);
}

.about__card h3 {
  font-size: 1rem;
  margin-bottom: 1.2rem;
}

.about__list li {
  display: flex;
  gap: 0.8rem;
  align-items: flex-start;
  padding-block: 0.75rem;
  font-size: 0.94rem;
  color: var(--ink-soft);
}

.about__list li + li {
  border-top: 1px solid var(--line-soft);
}

.about__list svg {
  width: 18px;
  height: 18px;
  flex: none;
  margin-top: 0.15rem;
  color: var(--primary);
}

.about__card .btn {
  width: 100%;
  justify-content: center;
  margin-top: 1.4rem;
}

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

.contact__grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(2.5rem, 5vw, 4rem);
  align-items: start;
}

.contact__info p {
  color: var(--ink-soft);
  margin-top: 1rem;
  max-width: 26rem;
}

.contact__list {
  margin-top: 2rem;
  display: grid;
  gap: 1.1rem;
}

.contact__item {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.contact__item .ico {
  width: 44px;
  height: 44px;
  flex: none;
  border-radius: 12px;
  background: var(--lav-wash);
  color: var(--primary);
  display: grid;
  place-items: center;
}

.contact__item .ico svg {
  width: 20px;
  height: 20px;
}

.contact__item small {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: 0.15rem;
}

.contact__item a,
.contact__item span.txt {
  font-weight: 500;
  color: var(--ink);
}

.contact__item a:hover {
  color: var(--primary);
}

.contact__form {
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  padding: clamp(1.6rem, 3vw, 2.4rem);
  box-shadow: var(--shadow-sm);
}

/* ---------- Scroll-Reveal ---------- */

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
  }
}

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

@media (max-width: 980px) {
  .hero__grid {
    grid-template-columns: 1fr;
  }

  .hero__art {
    order: -1;
    min-height: 0;
    margin-bottom: 1rem;
  }

  .hero .lead {
    max-width: none;
  }

  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about__grid,
  .contact__grid {
    grid-template-columns: 1fr;
  }

  .steps {
    grid-template-columns: 1fr;
    max-width: 460px;
    margin-inline: auto;
  }

  .step:not(:last-child)::after {
    content: "↓";
    top: auto;
    bottom: -1.5rem;
    right: 50%;
    transform: translateX(50%);
  }
}

@media (max-width: 860px) {
  .nav__burger {
    display: block;
  }

  .nav__links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--surface);
    border-bottom: 1px solid var(--line);
    box-shadow: var(--shadow-md);
    padding: 0.6rem 1.5rem 1rem;
    display: none;
  }

  .nav__links.is-open {
    display: flex;
  }

  .nav__links > a:not(.btn) {
    padding: 0.85rem 0;
    font-size: 1rem;
    border-bottom: 1px solid var(--line-soft);
  }

  .nav__links > a:last-child {
    border-bottom: 0;
  }

  .nav__links .btn {
    margin-top: 0.9rem;
    justify-content: center;
  }
}

@media (max-width: 640px) {
  .services__grid {
    grid-template-columns: 1fr;
  }

  .field-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .footer__grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .hero__facts {
    gap: 1.6rem;
  }

  .chip--3 {
    left: 0;
  }
}