/* =========================================================================
   Layout — Nav, Hero, Section-Frames, Footer
   ========================================================================= */

/* Nav ---------------------------------------------------------------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-nav);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-inline: var(--container-pad);
  height: var(--nav-height);
  background: rgba(10, 10, 10, 0.6);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-base) var(--ease-out), background-color var(--dur-base) var(--ease-out);
}

.nav[data-scrolled="true"] {
  background: rgba(10, 10, 10, 0.85);
  border-bottom-color: var(--color-border);
}

.nav__logo {
  display: inline-flex;
  align-items: baseline;
  gap: 1px;
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.nav__logo-dot {
  color: var(--color-accent);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav__link {
  font-size: var(--fs-small);
  color: var(--color-text-muted);
  padding: var(--space-2);
  transition: color var(--dur-fast) var(--ease-out);
}
.nav__link:hover { color: var(--color-text); }
.nav__link:focus-visible { color: var(--color-text); }

.nav__cta {
  display: inline-flex;
}

.nav__burger {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

.nav__burger-bars {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  position: relative;
  transition: background-color var(--dur-fast) var(--ease-out);
}
.nav__burger-bars::before,
.nav__burger-bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  transition: transform var(--dur-fast) var(--ease-out);
}
.nav__burger-bars::before { top: -7px; }
.nav__burger-bars::after  { top: 7px;  }

/* Hero --------------------------------------------------------------- */
.hero {
  min-height: 100vh;
  display: grid;
  align-content: center;
  padding-block: var(--space-32) var(--space-24);
  position: relative;
  overflow: hidden;
  isolation: isolate;
}

.hero__inner {
  display: grid;
  gap: var(--space-8);
  max-width: 1100px;
}

.hero__eyebrow { margin-bottom: var(--space-2); }

.hero__title {
  font-family: var(--font-heading);
  font-size: var(--fs-display);
  line-height: var(--lh-display);
  letter-spacing: var(--tracking-tight);
  color: var(--color-text);
  font-weight: var(--font-weight-regular);
}

.hero__title em {
  font-style: italic;
  color: var(--color-accent);
}

.hero__sub {
  font-size: var(--fs-lead);
  line-height: 1.45;
  color: var(--color-text-muted);
  max-width: 58ch;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-top: var(--space-4);
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  margin-top: var(--space-12);
  color: var(--color-text-soft);
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
}

.hero__meta-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.hero__meta-dot {
  width: 6px; height: 6px;
  border-radius: var(--radius-pill);
  background: var(--color-accent);
  animation: pulse 2.5s var(--ease-inout) infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.5; transform: scale(1.2); }
}

/* Hero Background Orbs (dezent, scroll-parallax) -------------------- */
.hero__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
  pointer-events: none;
  z-index: -1;
  will-change: transform;
}
.hero__orb--a { width: 560px; height: 560px; top: -180px; right: -220px; background: radial-gradient(circle, #00D48A 0%, transparent 70%); opacity: 0.22; }
.hero__orb--b { width: 480px; height: 480px; bottom: -200px; left: -180px; background: radial-gradient(circle, #00875A 0%, transparent 70%); opacity: 0.18; }

/* Section-Header (shared) — zentriert, max-width auf den Sub */
.section-header {
  display: grid;
  gap: var(--space-4);
  max-width: 860px;
  margin-inline: auto;
  margin-bottom: var(--space-16);
  justify-items: center;
  text-align: center;
}

.section-header__eyebrow { color: var(--color-accent); }

.section-header__title {
  font-size: var(--fs-h2);
  line-height: var(--lh-heading);
  letter-spacing: var(--tracking-tight);
  color: var(--color-text);
}

.section-header__sub {
  font-size: var(--fs-lead);
  line-height: 1.5;
  color: var(--color-text-muted);
  max-width: 58ch;
  margin-inline: auto;
}

/* Grid-Layouts ------------------------------------------------------- */
.grid-services {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-6);
}

.grid-cases {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: var(--space-6);
}

.grid-process {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-8);
  counter-reset: step;
}

/* Process-Step ------------------------------------------------------- */
.process-step {
  display: grid;
  gap: var(--space-4);
}
.process-step__num {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: var(--tracking-label);
  color: var(--color-text-soft);
}
.process-step__title {
  font-size: var(--fs-h4);
  color: var(--color-text);
  letter-spacing: var(--tracking-snug);
}
.process-step__body {
  color: var(--color-text-muted);
  line-height: var(--lh-body);
  font-size: var(--fs-body);
}

/* About ------------------------------------------------------------- */
.about {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: var(--space-16);
  align-items: start;
}

/* Contact ----------------------------------------------------------- */
.contact {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-16);
  align-items: start;
}

.contact__meta {
  display: grid;
  gap: var(--space-4);
}
.contact__meta-label {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-text-soft);
}
.contact__meta-value {
  font-size: var(--fs-h4);
  color: var(--color-text);
  letter-spacing: var(--tracking-snug);
}
.contact__meta-value a { border-bottom: 1px solid var(--color-border-strong); transition: border-color var(--dur-fast) var(--ease-out); }
.contact__meta-value a:hover { color: var(--color-accent); border-color: var(--color-accent); }

.contact__form {
  display: grid;
  gap: var(--space-4);
}

/* Footer ------------------------------------------------------------ */
.footer {
  padding-block: var(--space-16) var(--space-8);
  border-top: 1px solid var(--color-border);
  background: var(--color-bg-subtle);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-12);
  padding-block: var(--space-8);
}

.footer__brand {
  display: grid;
  gap: var(--space-4);
  max-width: 360px;
}

.footer__brand-tagline {
  color: var(--color-text-muted);
  font-size: var(--fs-small);
  line-height: 1.55;
}

.footer__col-title {
  font-family: var(--font-mono);
  font-size: var(--fs-label);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--color-text-soft);
  margin-bottom: var(--space-4);
}

.footer__links { display: grid; gap: var(--space-2); }
.footer__links a {
  color: var(--color-text-muted);
  font-size: var(--fs-small);
  transition: color var(--dur-fast) var(--ease-out);
}
.footer__links a:hover { color: var(--color-text); }

.footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
  font-size: var(--fs-label);
  color: var(--color-text-soft);
  font-family: var(--font-mono);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
}

.footer__legal-spacer { margin-left: auto; }

/* Responsive Breakpoints ------------------------------------------- */
@media (max-width: 1024px) {
  .about { grid-template-columns: 1fr; gap: var(--space-8); }
  .contact { grid-template-columns: 1fr; gap: var(--space-8); }
  .footer__grid { grid-template-columns: 1fr 1fr; gap: var(--space-8); }
}

@media (max-width: 768px) {
  :root {
    --nav-height: 64px;
    --section-pad-y: clamp(3rem, 8vh, 5rem);
  }
  .nav__links > .nav__link { display: none; }
  .nav__cta { display: none; }
  .nav__burger { display: inline-flex; }
  .hero { padding-block: var(--space-24) var(--space-16); }
  .hero__meta { gap: var(--space-4); margin-top: var(--space-8); }
  .footer__grid { grid-template-columns: 1fr; }
  .footer__legal { flex-direction: column; gap: var(--space-2); align-items: flex-start; }
  .footer__legal-spacer { margin-left: 0; }
  .divider { margin-block: var(--space-12); }
}

/* Mobile-Nav-Overlay (nur aktiv bei <=768px, JS-gesteuert über body[data-nav-open]) */
body[data-nav-open="true"] { overflow: hidden; }

.nav__overlay {
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  bottom: 0;
  height: calc(100vh - var(--nav-height));
  z-index: calc(var(--z-nav) - 1);
  background: var(--color-bg-base);
  display: none;                 /* Default: komplett aus dem Layout */
  align-content: start;
  gap: var(--space-6);
  padding: var(--space-8) var(--container-pad) var(--space-12);
  transform: translate3d(0, -100%, 0);
  transition: transform var(--dur-slow) var(--ease-out);
  visibility: hidden;
  pointer-events: none;
  overflow-y: auto;
}

.nav__overlay-link {
  font-family: var(--font-heading);
  font-size: var(--fs-h3);
  color: var(--color-text);
  letter-spacing: var(--tracking-snug);
  padding-block: var(--space-2);
  border-bottom: 1px solid var(--color-border);
}

@media (max-width: 768px) {
  .nav__overlay {
    display: grid;
    visibility: hidden;          /* erst sichtbar wenn open */
  }
  body[data-nav-open="true"] .nav__overlay {
    transform: translate3d(0, 0, 0);
    visibility: visible;
    pointer-events: auto;
  }
}