/* =========================================================
   LENZWERK · KONZEPT TRACK (B2B / Instagram)
   Emil-Kowalski-Sprache: dark, Inter 300, pill-buttons,
   spring-physics, 1px hairlines, generous whitespace.
   Aktiv via <body data-track="konzept">
   ========================================================= */

body[data-track="konzept"] {
  background: var(--kz-void);
  color: var(--kz-mist);
  font-family: "Inter", system-ui, -apple-system, sans-serif;
  font-weight: 300;
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
}

/* Bestehende skip-link, grain, etc. an Track-B anpassen */
body[data-track="konzept"] .skip-link {
  background: var(--kz-mist);
  color: var(--kz-void);
}
body[data-track="konzept"] .grain {
  opacity: 0.06;
  mix-blend-mode: screen;
}

/* Bestehende Header/Footer für IG ausblenden — wir bringen eigene */
body[data-track="konzept"] .site-header,
body[data-track="konzept"] .site-footer,
body[data-track="konzept"] .wa-float,
body[data-track="konzept"] .mobile-cta-bar {
  display: none;
}

/* ========== CONTAINER ========== */
.kz-container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 3.5rem);
}

/* ========== NAVIGATION (Floating) ========== */
.kz-nav {
  position: fixed;
  top: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 2rem;
  padding: 0.6rem 0.6rem 0.6rem 1.2rem;
  background: rgba(20, 20, 20, 0.65);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border: 1px solid var(--kz-mist-12);
  border-radius: 999px;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.05),
    0 8px 32px rgba(0,0,0,0.5);
  font-size: 0.88rem;
}

.kz-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  color: var(--kz-mist);
  text-decoration: none;
  font-weight: 500;
  letter-spacing: -0.01em;
}
.kz-brand-mark {
  display: inline-grid;
  place-items: center;
  width: 26px; height: 26px;
  border: 1px solid var(--kz-mist-12);
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  background: rgba(255,255,255,0.04);
}

.kz-nav-actions {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.kz-nav-link {
  padding: 0.4rem 0.85rem;
  color: var(--kz-mist-70);
  text-decoration: none;
  transition: color 0.2s var(--ease-spring);
}
.kz-nav-link:hover { color: var(--kz-mist); }

/* ========== PILL BUTTON ========== */
.kz-pill {
  --pill-bg: rgba(255,255,255,0.06);
  --pill-fg: var(--kz-mist);
  --pill-border: rgba(255,255,255,0.08);

  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.1rem;
  background: var(--pill-bg);
  color: var(--pill-fg);
  border: 1px solid var(--pill-border);
  border-radius: 999px;
  font-family: inherit;
  font-weight: 500;
  font-size: 0.88rem;
  letter-spacing: -0.005em;
  text-decoration: none;
  cursor: pointer;
  transition:
    transform 0.25s var(--ease-spring),
    background 0.25s ease,
    border-color 0.25s ease;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.06),
    0 1px 2px rgba(0,0,0,0.4);
  white-space: nowrap;
}
.kz-pill:hover {
  transform: translateY(-2px);
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.15);
}
.kz-pill:active { transform: translateY(0) scale(0.97); transition: transform 0.1s; }

.kz-pill--primary {
  --pill-bg: var(--kz-mist);
  --pill-fg: var(--kz-void);
  --pill-border: var(--kz-mist);
  font-weight: 500;
}
.kz-pill--primary:hover {
  background: var(--kz-mist);
  transform: translateY(-2px);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.6),
    0 6px 20px rgba(250,250,250,0.15);
}

.kz-pill--ghost {
  --pill-bg: transparent;
  --pill-border: var(--kz-mist-12);
  box-shadow: none;
}
.kz-pill--ghost:hover { background: rgba(255,255,255,0.04); }

.kz-pill-time {
  font-size: 0.72rem;
  font-weight: 400;
  opacity: 0.5;
  letter-spacing: 0;
  padding-left: 0.3rem;
  border-left: 1px solid currentColor;
  margin-left: 0.1rem;
}
.kz-pill-icon { width: 14px; height: 14px; fill: currentColor; }

/* ========== EYEBROW ========== */
.kz-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--kz-mist-50);
}
.kz-eyebrow--with-dot::before {
  content: "";
  display: block;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--kz-accent);
  box-shadow: 0 0 8px var(--kz-accent);
  animation: kz-pulse 2.4s ease-in-out infinite;
}
@keyframes kz-pulse {
  0%, 100% { opacity: 0.9; transform: scale(1); }
  50%      { opacity: 0.5; transform: scale(0.85); }
}

/* ========== TYPOGRAPHY (Konzept Track) ========== */
.kz-display {
  font-family: "Inter", system-ui, sans-serif;
  font-weight: 200;
  font-size: clamp(2.6rem, 7vw, 5.6rem);
  line-height: 1.02;
  letter-spacing: -0.045em;
  color: var(--kz-mist);
  margin: 0;
  text-wrap: balance;
}
.kz-lead {
  font-size: clamp(1.05rem, 1.4vw, 1.2rem);
  font-weight: 300;
  line-height: 1.55;
  color: var(--kz-mist-70);
  max-width: 52ch;
  margin-top: 1.5rem;
  letter-spacing: -0.005em;
}
.kz-h2 {
  font-family: "Inter", sans-serif;
  font-weight: 200;
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -0.035em;
  color: var(--kz-mist);
  margin: 0;
  text-wrap: balance;
}

/* ========== SECTION ========== */
.kz-section {
  padding: clamp(6rem, 12vw, 10rem) 0;
}
.kz-section-head {
  max-width: 720px;
  margin-bottom: clamp(3rem, 6vw, 5rem);
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

/* ========== HERO ========== */
.kz-hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: flex-end;
  padding: 7rem 0 5rem;
  overflow: hidden;
  isolation: isolate;
}
.kz-hero-media {
  position: absolute; inset: 0; z-index: -1;
}
.kz-hero-media img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: brightness(0.65) contrast(1.05);
}
.kz-hero-overlay {
  position: absolute; inset: 0;
  background:
    linear-gradient(to top, rgba(10,10,10,0.95) 0%, rgba(10,10,10,0.4) 35%, rgba(10,10,10,0.2) 100%),
    linear-gradient(to right, rgba(10,10,10,0.7) 0%, rgba(10,10,10,0) 60%);
}

.kz-hero-content {
  position: relative;
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 3.5rem);
}
.kz-hero-content .kz-eyebrow {
  margin-bottom: 2rem;
  animation: kz-fade-in 0.8s var(--ease-spring) both;
}
.kz-hero-content .kz-display {
  max-width: 18ch;
  animation: kz-fade-up 1s var(--ease-spring) 0.1s both;
}
.kz-hero-content .kz-lead {
  animation: kz-fade-up 1s var(--ease-spring) 0.25s both;
}
.kz-hero-content .kz-cta-group {
  margin-top: 2.5rem;
  animation: kz-fade-up 1s var(--ease-spring) 0.4s both;
}

/* Hero Price-Anchor (Konzept — diskret, low-contrast) */
.kz-hero-anchor {
  margin-top: 1.5rem;
  margin-bottom: 0;
  font-size: 0.85rem;
  font-weight: 300;
  letter-spacing: 0;
  color: var(--kz-mist-50);
  font-variant-numeric: tabular-nums;
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  animation: kz-fade-up 1s var(--ease-spring) 0.5s both;
}
.kz-hero-anchor::before {
  content: "";
  display: inline-block;
  width: 18px;
  height: 1px;
  background: var(--kz-accent);
}

.kz-trust-row {
  list-style: none;
  display: flex;
  gap: 2.5rem;
  margin-top: 3rem;
  padding: 0;
  font-size: 0.88rem;
  color: var(--kz-mist-70);
  font-weight: 300;
  letter-spacing: -0.005em;
  flex-wrap: wrap;
  animation: kz-fade-up 1s var(--ease-spring) 0.55s both;
}
.kz-trust-row strong {
  color: var(--kz-mist);
  font-weight: 500;
  margin-right: 0.35rem;
}

@keyframes kz-fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes kz-fade-up {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.kz-cta-group {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}
.kz-cta-group--center {
  justify-content: center;
}

/* ========== STATEMENT (Editorial Quote) ========== */
.kz-section--statement {
  padding: clamp(8rem, 16vw, 14rem) 0;
}
.kz-statement {
  font-family: "Inter", sans-serif;
  font-weight: 200;
  font-size: clamp(2rem, 5vw, 4rem);
  line-height: 1.1;
  letter-spacing: -0.04em;
  color: var(--kz-mist);
  max-width: 24ch;
  text-wrap: balance;
}
.kz-statement-fade {
  color: var(--kz-mist-50);
}

/* ========== PRINCIPLES (Hairlines Grid) ========== */
.kz-principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
  border-top: 1px solid var(--kz-mist-12);
}
.kz-principle {
  padding: 3rem 2rem 3rem 0;
  position: relative;
}
.kz-principle:not(:last-child) {
  border-right: 1px solid var(--kz-mist-12);
  padding-right: 2.5rem;
}
.kz-principle:not(:first-child) {
  padding-left: 2.5rem;
}
.kz-principle-num {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--kz-accent);
  letter-spacing: 0.04em;
  margin-bottom: 1.5rem;
}
.kz-principle-title {
  font-family: "Inter", sans-serif;
  font-weight: 400;
  font-size: 1.3rem;
  letter-spacing: -0.02em;
  color: var(--kz-mist);
  margin: 0 0 0.85rem;
}
.kz-principle-body {
  font-weight: 300;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--kz-mist-70);
  margin: 0;
  max-width: 36ch;
}

@media (max-width: 860px) {
  .kz-principles { grid-template-columns: 1fr; }
  .kz-principle { padding: 2.5rem 0 !important; border-right: none !important; border-bottom: 1px solid var(--kz-mist-12); }
  .kz-principle:last-child { border-bottom: none; }
}

/* ========== MATERIAL GRID (Editorial) ========== */
.kz-section--material {
  background: var(--kz-carbon);
  border-top: 1px solid var(--kz-mist-12);
  border-bottom: 1px solid var(--kz-mist-12);
}
.kz-material-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(2, 320px);
  gap: 1rem;
}
.kz-material {
  position: relative;
  overflow: hidden;
  border-radius: 4px;
  background: var(--kz-carbon);
  margin: 0;
}
.kz-material img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.8s var(--ease-spring), filter 0.4s ease;
  filter: brightness(0.9);
}
.kz-material:hover img {
  transform: scale(1.04);
  filter: brightness(1);
}
.kz-material figcaption {
  position: absolute;
  bottom: 1rem; left: 1rem;
  background: rgba(10,10,10,0.75);
  backdrop-filter: blur(8px);
  border: 1px solid var(--kz-mist-12);
  border-radius: 999px;
  padding: 0.35rem 0.85rem;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--kz-mist);
}
.kz-material--tall { grid-row: span 2; }
.kz-material--wide { grid-column: span 2; }

@media (max-width: 860px) {
  .kz-material-grid {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: repeat(4, 220px);
  }
  .kz-material--tall { grid-row: auto; }
  .kz-material--wide { grid-column: span 2; }
}
@media (max-width: 540px) {
  .kz-material-grid {
    grid-template-columns: 1fr;
    grid-template-rows: repeat(4, 240px);
  }
  .kz-material--wide { grid-column: auto; }
}

/* ========== ATMOSPHERE (Full-Bleed Image Break) ========== */
.kz-atmosphere {
  padding: clamp(2rem, 5vw, 4rem) 0;
  background: var(--kz-void);
}
.kz-atmosphere-frame {
  position: relative;
  margin: 0;
  height: clamp(420px, 70vh, 760px);
  overflow: hidden;
  border-radius: 6px;
  width: calc(100% - clamp(1.5rem, 5vw, 3.5rem) * 2);
  max-width: 1640px;
  margin: 0 auto;
}
.kz-atmosphere-frame img {
  width: 100%; height: 100%;
  object-fit: cover;
  filter: brightness(0.85);
  transition: transform 1.4s var(--ease-spring), filter 0.6s ease;
}
.kz-atmosphere:hover .kz-atmosphere-frame img {
  transform: scale(1.02);
  filter: brightness(1);
}
.kz-atmosphere-caption {
  position: absolute;
  bottom: clamp(2rem, 5vw, 4rem);
  left: clamp(2rem, 5vw, 4rem);
  max-width: 480px;
  color: var(--kz-mist);
  background: rgba(10, 10, 10, 0.4);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 1.5rem 1.75rem;
  border: 1px solid var(--kz-mist-12);
  border-radius: 4px;
}
.kz-atmosphere-caption .kz-eyebrow {
  margin-bottom: 0.85rem;
}
.kz-atmosphere-text {
  font-weight: 200;
  font-size: clamp(1.2rem, 2.2vw, 1.6rem);
  line-height: 1.3;
  letter-spacing: -0.02em;
  color: var(--kz-mist);
  margin: 0;
  text-wrap: balance;
}
.kz-atmosphere--right .kz-atmosphere-caption {
  left: auto;
  right: clamp(2rem, 5vw, 4rem);
  text-align: left;
}

@media (max-width: 720px) {
  .kz-atmosphere-frame { height: 480px; }
  .kz-atmosphere-caption {
    bottom: 1rem; left: 1rem; right: 1rem;
    padding: 1rem 1.25rem;
  }
  .kz-atmosphere--right .kz-atmosphere-caption { right: 1rem; left: 1rem; }
  .kz-atmosphere-text { font-size: 1.05rem; }
}

/* ========== 6er MATERIAL GRID (asymmetric, mehr Variation) ========== */
.kz-material-grid--6 {
  grid-template-columns: 1.4fr 1fr 1fr;
  grid-template-rows: 360px 360px;
  gap: 1rem;
}
.kz-material-grid--6 .kz-material--tall {
  grid-row: span 2;
  grid-column: 1;
}
.kz-material-grid--6 .kz-material--wide {
  grid-column: span 2;
}

@media (max-width: 860px) {
  .kz-material-grid--6 {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: repeat(6, 240px);
  }
  .kz-material-grid--6 .kz-material--tall {
    grid-column: span 2;
    grid-row: span 1;
  }
  .kz-material-grid--6 .kz-material--wide {
    grid-column: span 2;
  }
}
@media (max-width: 540px) {
  .kz-material-grid--6 {
    grid-template-columns: 1fr;
    grid-template-rows: repeat(6, 260px);
  }
  .kz-material-grid--6 .kz-material--tall,
  .kz-material-grid--6 .kz-material--wide {
    grid-column: auto;
  }
}

/* ========== SECTION-HEAD ROW (Title + Trail-Link) ========== */
.kz-section-head--row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 2rem;
  flex-wrap: wrap;
  margin-bottom: 0;
}
.kz-section-head--row > div { display: flex; flex-direction: column; gap: 1rem; }
.kz-section-head--row .kz-pill { flex-shrink: 0; }

/* ========== PROJECT STRIP ========== */
.kz-section--projects { padding: clamp(5rem, 10vw, 8rem) 0; }

.kz-project-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  margin-top: 3rem;
}
.kz-project {
  position: relative;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  border-radius: 4px;
  text-decoration: none;
  color: var(--kz-mist);
  background: var(--kz-carbon);
  isolation: isolate;
}
.kz-project img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  filter: brightness(0.78);
  transition: transform 0.8s var(--ease-spring), filter 0.5s ease;
}
.kz-project::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(10,10,10,0.85) 0%, rgba(10,10,10,0.2) 50%, transparent 100%);
  z-index: 1;
}
.kz-project:hover img { transform: scale(1.05); filter: brightness(0.95); }

.kz-project-meta {
  position: absolute;
  bottom: 1.25rem;
  left: 1.25rem;
  right: 1.25rem;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.kz-project-loc {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--kz-mist-70);
  font-weight: 500;
}
.kz-project-title {
  font-size: 1.05rem;
  font-weight: 400;
  letter-spacing: -0.015em;
  color: var(--kz-mist);
}

@media (max-width: 860px) {
  .kz-project-strip { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 540px) {
  .kz-project-strip { grid-template-columns: 1fr; }
  .kz-project { aspect-ratio: 4 / 3; }
}

/* ========== TESTIMONIAL ========== */
.kz-section--testimonial {
  padding: clamp(7rem, 14vw, 12rem) 0;
}
.kz-quote {
  max-width: 880px;
  margin: 0 auto;
  text-align: center;
}
.kz-quote-text {
  font-family: "Inter", sans-serif;
  font-weight: 200;
  font-size: clamp(1.6rem, 3.5vw, 2.6rem);
  line-height: 1.25;
  letter-spacing: -0.025em;
  color: var(--kz-mist);
  margin: 0 0 2.5rem;
  text-wrap: balance;
}
.kz-quote-meta {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.88rem;
  font-weight: 400;
  letter-spacing: 0;
  color: var(--kz-mist-50);
}
.kz-quote-author { color: var(--kz-mist); font-weight: 500; }
.kz-quote-dot { opacity: 0.4; }

/* ========== FINAL CTA ========== */
.kz-section--cta {
  text-align: center;
  padding: clamp(6rem, 12vw, 10rem) 0;
  background: radial-gradient(ellipse 80% 60% at 50% 0%, rgba(168,131,90,0.08) 0%, transparent 60%);
}
.kz-cta-headline {
  font-family: "Inter", sans-serif;
  font-weight: 200;
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  letter-spacing: -0.045em;
  line-height: 1.05;
  color: var(--kz-mist);
  margin: 0 0 1.5rem;
}
.kz-cta-sub {
  font-weight: 300;
  font-size: 1.05rem;
  color: var(--kz-mist-70);
  max-width: 48ch;
  margin: 0 auto 3rem;
}

/* ========== WHATSAPP FLOAT (Konzept) ========== */
.kz-wa-float {
  position: fixed;
  right: 1.5rem;
  bottom: 1.5rem;
  z-index: 80;
  width: 52px; height: 52px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--kz-mist);
  color: var(--kz-void);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.4),
    0 8px 24px rgba(0,0,0,0.5);
  transition: transform 0.25s var(--ease-spring);
}
.kz-wa-float:hover { transform: translateY(-3px) scale(1.04); }
.kz-wa-float:active { transform: translateY(0) scale(0.94); }
.kz-wa-float svg { width: 26px; height: 26px; fill: var(--kz-void); }

/* ========== FOOTER (Minimal) ========== */
.kz-footer {
  padding: 2.5rem 0 3rem;
  border-top: 1px solid var(--kz-mist-12);
  background: var(--kz-void);
}
.kz-footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.82rem;
  color: var(--kz-mist-50);
}
.kz-footer-brand {
  font-weight: 500;
  color: var(--kz-mist-70);
  letter-spacing: -0.01em;
}
.kz-footer-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  padding: 0; margin: 0;
}
.kz-footer-links a {
  color: var(--kz-mist-50);
  text-decoration: none;
  transition: color 0.2s var(--ease-spring);
}
.kz-footer-links a:hover { color: var(--kz-mist); }

/* ========== FOCUS-VISIBLE (Konzept variant) ========== */
body[data-track="konzept"] :focus-visible {
  outline: 2px solid var(--kz-mist);
  outline-offset: 4px;
}

/* ========== REVEAL (Konzept Override) ========== */
body[data-track="konzept"] .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.9s var(--ease-spring),
    transform 0.9s var(--ease-spring);
}
body[data-track="konzept"] .reveal.is-visible {
  opacity: 1; transform: translateY(0);
}

/* Stagger schon in style.css definiert — gilt auch hier */

/* ========== SPRACH-TOGGLE (Konzept-Track) ========== */
.kz-lang-switch {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--kz-mist-12);
  padding: 2px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  gap: 0;
}
.kz-lang-switch button {
  font-family: inherit;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  padding: 0.35rem 0.65rem;
  background: transparent;
  color: var(--kz-mist-50);
  border: none;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.25s var(--ease-spring);
  text-transform: uppercase;
}
.kz-lang-switch button:hover { color: var(--kz-mist); }
.kz-lang-switch button.is-active {
  background: var(--kz-mist);
  color: var(--kz-void);
}

/* ========== PORTFOLIO HERO ========== */
.kz-portfolio-hero {
  padding: 12rem 0 4rem;
  border-bottom: 1px solid var(--kz-mist-12);
}
.kz-portfolio-hero .kz-eyebrow { margin-bottom: 2rem; }
.kz-portfolio-hero .kz-display { max-width: 16ch; margin-bottom: 1.5rem; }
.kz-portfolio-hero .kz-lead { max-width: 56ch; }

.kz-display--portfolio {
  font-size: clamp(2.6rem, 6vw, 4.8rem);
}

/* ========== FILTER ROW (Pill-Tabs) ========== */
.kz-filter-row {
  display: flex;
  gap: 0.4rem;
  margin-top: 3rem;
  flex-wrap: wrap;
}
.kz-filter {
  font-family: inherit;
  font-weight: 400;
  font-size: 0.85rem;
  letter-spacing: -0.005em;
  padding: 0.55rem 1.1rem;
  background: transparent;
  color: var(--kz-mist-70);
  border: 1px solid var(--kz-mist-12);
  border-radius: 999px;
  cursor: pointer;
  transition:
    background 0.25s var(--ease-spring),
    color 0.25s ease,
    border-color 0.25s ease,
    transform 0.2s var(--ease-spring);
}
.kz-filter:hover {
  color: var(--kz-mist);
  background: rgba(255, 255, 255, 0.04);
  transform: translateY(-1px);
}
.kz-filter:active { transform: translateY(0) scale(0.97); }
.kz-filter.is-active {
  background: var(--kz-mist);
  color: var(--kz-void);
  border-color: var(--kz-mist);
  font-weight: 500;
}

/* ========== PORTFOLIO GRID (Asymmetric Masonry) ========== */
.kz-section--portfolio { padding: 4rem 0 clamp(6rem, 12vw, 10rem); }

.kz-portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: 320px;
  gap: 1rem;
}
.kz-portfolio-card {
  position: relative;
  margin: 0;
  border-radius: 6px;
  overflow: hidden;
  background: var(--kz-carbon);
  isolation: isolate;
  transition: transform 0.5s var(--ease-spring);
}
.kz-portfolio-card:hover { transform: translateY(-3px); }
.kz-portfolio-card--tall {
  grid-row: span 2;
}
.kz-portfolio-card--wide {
  grid-column: span 2;
}
.kz-portfolio-link {
  position: relative;
  display: block;
  height: 100%;
  text-decoration: none;
  color: var(--kz-mist);
}
.kz-portfolio-card img {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  filter: brightness(0.85);
  transition: transform 0.8s var(--ease-spring), filter 0.5s ease;
}
.kz-portfolio-card:hover img {
  transform: scale(1.04);
  filter: brightness(1);
}
.kz-portfolio-card::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(10,10,10,0.92) 0%, rgba(10,10,10,0.4) 40%, transparent 65%);
  z-index: 1;
  pointer-events: none;
}

.kz-portfolio-meta {
  position: absolute;
  bottom: 1.5rem;
  left: 1.5rem;
  right: 1.5rem;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}
.kz-portfolio-tag {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  padding: 0.25rem 0.75rem;
  background: rgba(10, 10, 10, 0.7);
  backdrop-filter: blur(8px);
  border: 1px solid var(--kz-mist-12);
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--kz-mist-70);
  margin-bottom: 0.4rem;
}
.kz-portfolio-title {
  font-size: 1.2rem;
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin: 0;
  color: var(--kz-mist);
}
.kz-portfolio-sub {
  font-size: 0.85rem;
  font-weight: 300;
  color: var(--kz-mist-70);
  margin: 0;
  letter-spacing: -0.005em;
}

@media (max-width: 860px) {
  .kz-portfolio-grid {
    grid-template-columns: 1fr 1fr;
    grid-auto-rows: 260px;
  }
  .kz-portfolio-card--tall { grid-row: span 1; }
  .kz-portfolio-card--wide { grid-column: span 2; }
}
@media (max-width: 540px) {
  .kz-portfolio-grid { grid-template-columns: 1fr; }
  .kz-portfolio-card--tall,
  .kz-portfolio-card--wide { grid-column: auto; }
}

/* ========== STATS ========== */
.kz-section--stats {
  padding: clamp(4rem, 8vw, 6rem) 0;
  background: var(--kz-carbon);
  border-top: 1px solid var(--kz-mist-12);
  border-bottom: 1px solid var(--kz-mist-12);
}
.kz-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.kz-stat {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  padding: 0 2rem;
}
.kz-stat:not(:last-child) {
  border-right: 1px solid var(--kz-mist-12);
}
.kz-stat:first-child { padding-left: 0; }
.kz-stat:last-child  { padding-right: 0; }

.kz-stat-num {
  font-family: "Inter", sans-serif;
  font-weight: 200;
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  letter-spacing: -0.04em;
  line-height: 1;
  color: var(--kz-mist);
  font-variant-numeric: tabular-nums;
}
.kz-stat-num sup {
  font-size: 0.4em;
  font-weight: 300;
  vertical-align: super;
  color: var(--kz-accent);
  margin-left: 0.05em;
}
.kz-stat-label {
  font-size: 0.85rem;
  font-weight: 300;
  color: var(--kz-mist-70);
  letter-spacing: -0.005em;
  max-width: 18ch;
}

@media (max-width: 860px) {
  .kz-stats-grid { grid-template-columns: 1fr 1fr; gap: 2.5rem 0; }
  .kz-stat { padding: 0 1rem; }
  .kz-stat:nth-child(2) { border-right: none; }
  .kz-stat:nth-child(3) { padding-left: 0; }
  .kz-stat:nth-child(4) { padding-right: 0; }
}
@media (max-width: 540px) {
  .kz-stats-grid { grid-template-columns: 1fr; }
  .kz-stat { border-right: none !important; padding: 1.5rem 0; }
  .kz-stat:not(:last-child) { border-bottom: 1px solid var(--kz-mist-12); }
}

/* ========== KONTAKT (Konzept-Track) ========== */
.kz-kontakt-hero {
  padding: 11rem 0 4rem;
  border-bottom: 1px solid var(--kz-mist-12);
}
.kz-kontakt-hero .kz-eyebrow { margin-bottom: 2rem; }
.kz-kontakt-hero .kz-display { margin-bottom: 1.5rem; max-width: 18ch; }

.kz-section--form { padding: 4rem 0 clamp(6rem, 12vw, 10rem); }

/* Form-wrap → asymmetric (form left, aside right) */
body[data-track="konzept"] .form-wrap {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: clamp(2rem, 6vw, 5rem);
}
@media (max-width: 860px) {
  body[data-track="konzept"] .form-wrap { grid-template-columns: 1fr; }
}

/* Konzept Form */
body[data-track="konzept"] .form { display: grid; gap: 1.75rem; }
body[data-track="konzept"] .form-group { display: grid; gap: 0.55rem; }
body[data-track="konzept"] .form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}
@media (max-width: 600px) {
  body[data-track="konzept"] .form-row { grid-template-columns: 1fr; }
}

body[data-track="konzept"] .form label {
  font-family: "Inter", sans-serif;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--kz-mist-70);
}
body[data-track="konzept"] .form label .req {
  color: var(--kz-accent);
}

body[data-track="konzept"] .form input,
body[data-track="konzept"] .form select,
body[data-track="konzept"] .form textarea {
  font-family: "Inter", sans-serif;
  font-weight: 400;
  font-size: 1rem;
  padding: 0.85rem 1rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--kz-mist-12);
  border-radius: 8px;
  color: var(--kz-mist);
  transition: border-color 0.25s var(--ease-spring), background 0.25s ease;
  letter-spacing: -0.005em;
}
body[data-track="konzept"] .form input::placeholder,
body[data-track="konzept"] .form textarea::placeholder {
  color: var(--kz-mist-50);
  font-weight: 300;
}
body[data-track="konzept"] .form input:focus,
body[data-track="konzept"] .form select:focus,
body[data-track="konzept"] .form textarea:focus {
  outline: none;
  border-color: var(--kz-mist);
  background: rgba(255, 255, 255, 0.06);
}
body[data-track="konzept"] .form textarea { min-height: 120px; resize: vertical; }
body[data-track="konzept"] .form select {
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%23fafafa'><path d='M7 10l5 5 5-5z'/></svg>");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2.5rem;
}

/* Segment Toggle (B2C/B2B) */
body[data-track="konzept"] .segment-toggle {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  margin-top: 0.5rem;
  padding: 0.4rem;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--kz-mist-12);
  border-radius: 999px;
}
body[data-track="konzept"] .segment-toggle label {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1rem;
  border: none;
  border-radius: 999px;
  cursor: pointer;
  text-transform: none;
  letter-spacing: -0.005em;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--kz-mist-70);
  background: transparent;
  transition: all 0.25s var(--ease-spring);
}
body[data-track="konzept"] .segment-toggle input { display: none; }
body[data-track="konzept"] .segment-toggle label:hover { color: var(--kz-mist); }
body[data-track="konzept"] .segment-toggle label:has(input:checked) {
  background: var(--kz-mist);
  color: var(--kz-void);
  font-weight: 500;
}

/* Checkbox-Row */
body[data-track="konzept"] .checkbox-row {
  font-size: 0.85rem;
  color: var(--kz-mist-70);
  line-height: 1.5;
}
body[data-track="konzept"] .checkbox-row a {
  color: var(--kz-mist);
  text-decoration: underline;
  text-underline-offset: 3px;
}
body[data-track="konzept"] .checkbox-row input {
  width: 16px; height: 16px;
  accent-color: var(--kz-accent);
}

/* Submit Button */
body[data-track="konzept"] .form .btn,
body[data-track="konzept"] .form button[type="submit"] {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.95rem 1.8rem;
  background: var(--kz-mist);
  color: var(--kz-void);
  border: 1px solid var(--kz-mist);
  border-radius: 999px;
  font-family: inherit;
  font-weight: 500;
  font-size: 0.95rem;
  letter-spacing: -0.005em;
  cursor: pointer;
  transition: transform 0.25s var(--ease-spring);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.4),
    0 1px 2px rgba(0,0,0,0.4);
  align-self: flex-start;
  text-decoration: none;
}
body[data-track="konzept"] .form .btn:hover { transform: translateY(-2px); }
body[data-track="konzept"] .form .btn:active { transform: translateY(0) scale(0.97); }

/* Fine-Print */
body[data-track="konzept"] .form .fine-print,
body[data-track="konzept"] .fine-print {
  font-size: 0.78rem;
  color: var(--kz-mist-50);
  line-height: 1.55;
}

/* Form Message (Success/Error) */
body[data-track="konzept"] .form-message {
  padding: 1.25rem 1.5rem;
  background: rgba(168, 131, 90, 0.1);
  border-left: 2px solid var(--kz-accent);
  border-radius: 0 6px 6px 0;
  color: var(--kz-mist);
}

/* Aside Cards (Price Indicator + Briefing) */
body[data-track="konzept"] aside {
  display: grid;
  gap: 1.25rem;
  align-self: start;
}
body[data-track="konzept"] .price-indicator,
body[data-track="konzept"] .form-aside {
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(20px);
  border: 1px solid var(--kz-mist-12);
  border-radius: 12px;
  padding: 2rem 1.75rem;
  color: var(--kz-mist);
}
body[data-track="konzept"] .price-indicator h3,
body[data-track="konzept"] .form-aside h3 {
  font-family: "Inter", sans-serif;
  font-weight: 400;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
  color: var(--kz-mist);
  margin: 0 0 0.6rem;
}
body[data-track="konzept"] .price-indicator p,
body[data-track="konzept"] .form-aside p {
  color: var(--kz-mist-70);
  font-size: 0.92rem;
  font-weight: 300;
  line-height: 1.55;
  margin: 0;
}

/* Slider (Konzept) */
body[data-track="konzept"] .price-slider-wrap {
  display: grid;
  gap: 0.6rem;
  margin-top: 1.5rem;
}
body[data-track="konzept"] .price-slider-wrap label {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--kz-mist-70);
  text-transform: none;
  letter-spacing: -0.005em;
}
body[data-track="konzept"] .price-slider-wrap label span:last-child {
  color: var(--kz-mist);
  font-variant-numeric: tabular-nums;
}
body[data-track="konzept"] input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 3px;
  background: var(--kz-mist-12);
  outline: none;
  border-radius: 999px;
  padding: 0;
  border: none;
}
body[data-track="konzept"] input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 18px; height: 18px;
  background: var(--kz-mist);
  border-radius: 50%;
  cursor: pointer;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,0.4),
    0 2px 8px rgba(0,0,0,0.4);
  transition: transform 0.2s var(--ease-spring);
}
body[data-track="konzept"] input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.15); }
body[data-track="konzept"] input[type="range"]::-moz-range-thumb {
  width: 18px; height: 18px;
  background: var(--kz-mist);
  border-radius: 50%;
  border: none;
  cursor: pointer;
}

body[data-track="konzept"] .price-display {
  margin-top: 1.5rem;
  padding: 1.25rem 1.25rem;
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--kz-mist-12);
  border-radius: 8px;
  text-align: center;
}
body[data-track="konzept"] .price-display-label {
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--kz-mist-50);
  margin-bottom: 0.5rem;
  font-weight: 500;
}
body[data-track="konzept"] .price-display-value {
  font-family: "Inter", sans-serif;
  font-weight: 200;
  font-size: 1.8rem;
  letter-spacing: -0.025em;
  color: var(--kz-mist);
  font-variant-numeric: tabular-nums;
}

/* Process-List (B2B Briefing) */
body[data-track="konzept"] .process-list {
  list-style: none;
  display: grid;
  gap: 1rem;
  padding: 0;
  margin: 1.5rem 0 0;
}
body[data-track="konzept"] .process-step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.85rem;
  align-items: start;
  font-size: 0.9rem;
  color: var(--kz-mist-70);
  line-height: 1.5;
}
body[data-track="konzept"] .process-step strong:first-child {
  color: var(--kz-accent);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  padding-top: 0.15rem;
}
body[data-track="konzept"] .process-step strong:not(:first-child) {
  color: var(--kz-mist);
}

/* Contact-Info Block */
body[data-track="konzept"] .contact-info {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--kz-mist-12);
  font-size: 0.92rem;
  color: var(--kz-mist-70);
}
body[data-track="konzept"] .contact-info strong { color: var(--kz-mist); }

/* Seg-only spacing inside form */
body[data-track="konzept"] .seg-only {
  display: grid;
  gap: 1.75rem;
}

/* ========== MOBILE NAV ========== */
@media (max-width: 720px) {
  .kz-nav {
    top: 1rem;
    width: calc(100% - 2rem);
    padding: 0.5rem 0.5rem 0.5rem 1rem;
  }
  .kz-nav-link { display: none; }
  .kz-hero {
    padding-top: 6rem;
    padding-bottom: 4rem;
  }
  .kz-trust-row { gap: 1.5rem; font-size: 0.82rem; }
  .kz-cta-group { width: 100%; }
  .kz-cta-group .kz-pill { flex: 1; justify-content: center; }
}
