/* ────────────────────────────────────────────────
   OBT Hamm — main stylesheet
   Palette anchored on the logo's electric blue.
   No #000, no #fff. Every neutral is tinted.
   ──────────────────────────────────────────────── */

:root {
  /* Brand */
  --brand:        oklch(0.50 0.28 264);   /* logo blue, vivid */
  --brand-bright: oklch(0.62 0.25 262);   /* highlight */
  --brand-deep:   oklch(0.32 0.20 264);   /* shadowed */
  --brand-glow:   oklch(0.70 0.20 260 / 0.45);

  /* Neutrals (all tinted toward brand hue) */
  --ink-0:   oklch(0.07 0.018 260);  /* deepest backdrop */
  --ink-1:   oklch(0.10 0.020 260);  /* page bg */
  --ink-2:   oklch(0.14 0.022 260);  /* surface */
  --ink-3:   oklch(0.20 0.020 260);  /* surface raised */
  --ink-4:   oklch(0.32 0.018 260);  /* divider */
  --ink-5:   oklch(0.50 0.012 260);  /* muted text */
  --ink-6:   oklch(0.72 0.008 260);  /* secondary text */
  --ink-7:   oklch(0.88 0.005 260);  /* primary text on dark */
  --paper:   oklch(0.97 0.005 260);  /* warm white */
  --paper-2: oklch(0.93 0.008 260);  /* secondary paper */

  /* Type */
  --display: 'Inter Tight', 'Helvetica Neue', system-ui, sans-serif;
  --body:    'Inter', 'Helvetica Neue', system-ui, sans-serif;
  --mono:    'JetBrains Mono', ui-monospace, Menlo, monospace;

  /* Spatial rhythm */
  --pad-page-x: clamp(1.25rem, 4vw, 3rem);
  --col-narrow: 60ch;
  --col-wide:   1440px;

  /* Motion */
  --ease-out-quart: cubic-bezier(0.165, 0.84, 0.44, 1);
  --ease-out-expo:  cubic-bezier(0.19, 1, 0.22, 1);
  --ease-in-out:    cubic-bezier(0.65, 0, 0.35, 1);

  /* z-index scale */
  --z-stage:   0;
  --z-content: 10;
  --z-rail:    20;
  --z-nav:     50;
  --z-loader:  100;
  --z-edit:    200;
}

/* ─────────────── Base ─────────────── */

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

html, body {
  background: var(--ink-1);
  color: var(--ink-7);
  font-family: var(--body);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

html {
  scroll-behavior: auto;
  /* Lenis manages smooth scroll */
}

body {
  overflow-x: hidden;
  min-height: 100vh;
}

img, svg, video, canvas { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
input, textarea, select { font: inherit; color: inherit; }

::selection { background: var(--brand); color: var(--paper); }

/* Lenis hooks */
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-smooth [data-lenis-prevent] { overscroll-behavior: contain; }
.lenis.lenis-stopped { overflow: hidden; }

/* ─────────────── Stage (3D canvas) ─────────────── */

.stage {
  position: fixed;
  inset: 0;
  z-index: var(--z-stage);
  pointer-events: none;
  background:
    radial-gradient(ellipse 80% 60% at 50% 35%, oklch(0.16 0.04 262) 0%, transparent 70%),
    linear-gradient(180deg, var(--ink-0) 0%, var(--ink-1) 30%, var(--ink-1) 60%, var(--ink-0) 100%);
}

#stage-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.stage-vignette {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 120% 90% at 50% 50%, transparent 40%, oklch(0.04 0.02 260 / 0.7) 100%);
  pointer-events: none;
}

.stage-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, oklch(0.40 0.10 260 / 0.06) 1px, transparent 1px),
    linear-gradient(to bottom, oklch(0.40 0.10 260 / 0.06) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 0%, transparent 70%);
  pointer-events: none;
  opacity: 0.4;
}

/* ─────────────── Loader ─────────────── */

.loader {
  position: fixed;
  inset: 0;
  z-index: var(--z-loader);
  background: var(--ink-0);
  display: grid;
  place-items: center;
  gap: 1.25rem;
  grid-template-rows: 1fr auto auto 1fr;
  transition: opacity 0.6s var(--ease-out-quart), visibility 0.6s;
}
.loader.is-done { opacity: 0; visibility: hidden; }

.loader__bar {
  grid-row: 2;
  width: clamp(180px, 24vw, 320px);
  height: 1px;
  background: var(--ink-3);
  position: relative;
  overflow: hidden;
}
.loader__fill {
  position: absolute;
  inset: 0 100% 0 0;
  background: var(--brand);
  transition: right 0.4s var(--ease-out-quart);
}
.loader__label {
  grid-row: 3;
  font-family: var(--display);
  font-weight: 900;
  letter-spacing: -0.02em;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  color: var(--ink-7);
}

/* ─────────────── Edit toolbar ─────────────── */

.edit-toolbar[hidden] { display: none !important; }
.edit-toolbar {
  position: fixed;
  bottom: 1.25rem; left: 50%;
  transform: translateX(-50%);
  z-index: var(--z-edit);
  display: flex; gap: 0.5rem; align-items: center;
  padding: 0.5rem 0.5rem 0.5rem 1rem;
  background: var(--ink-2);
  border: 1px solid var(--brand);
  border-radius: 999px;
  box-shadow: 0 20px 60px -10px var(--brand-glow);
}
.edit-toolbar__pill {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--brand-bright);
  padding-right: 0.5rem;
  border-right: 1px solid var(--ink-4);
}
.edit-toolbar__btn {
  font-family: var(--body);
  font-size: 0.85rem;
  font-weight: 600;
  background: var(--brand);
  color: var(--paper);
  padding: 0.5rem 0.95rem;
  border-radius: 999px;
  transition: background 0.2s;
}
.edit-toolbar__btn:hover { background: var(--brand-bright); }
.edit-toolbar__btn--ghost {
  background: transparent;
  color: var(--ink-7);
}
.edit-toolbar__btn--ghost:hover { color: var(--paper); background: var(--ink-3); }

[contenteditable="true"] {
  outline: 1px dashed var(--brand);
  outline-offset: 4px;
  background: oklch(0.50 0.28 264 / 0.06);
  cursor: text;
}
[contenteditable="true"]:focus {
  outline-color: var(--brand-bright);
  background: oklch(0.50 0.28 264 / 0.12);
}

/* ─────────────── Nav ─────────────── */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: var(--z-nav);
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: clamp(1rem, 4vw, 3rem);
  padding: 1.1rem var(--pad-page-x);
  background: linear-gradient(180deg, oklch(0.06 0.02 260 / 0.85) 0%, oklch(0.06 0.02 260 / 0) 100%);
  backdrop-filter: blur(8px) saturate(140%);
  -webkit-backdrop-filter: blur(8px) saturate(140%);
}

.nav__brand {
  color: var(--paper);
  display: inline-flex;
  align-items: center;
}
.nav__mark {
  height: 1.4rem;
  width: auto;
}

.nav__links { justify-self: center; }
.nav__links ul {
  display: flex;
  gap: clamp(1rem, 2.4vw, 2.4rem);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.01em;
}
.nav__links a {
  color: var(--ink-6);
  position: relative;
  transition: color 0.2s;
}
.nav__links a::after {
  content: "";
  position: absolute;
  left: 0; right: 100%;
  bottom: -6px;
  height: 1px;
  background: var(--brand);
  transition: right 0.4s var(--ease-out-quart);
}
.nav__links a:hover { color: var(--paper); }
.nav__links a:hover::after { right: 0; }

.nav__cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.7rem 1.1rem;
  border: 1px solid var(--ink-4);
  border-radius: 999px;
  color: var(--paper);
  transition: border-color 0.25s, background 0.25s;
}
.nav__cta:hover { border-color: var(--brand); background: oklch(0.50 0.28 264 / 0.12); }
.nav__cta-arrow { transition: transform 0.3s var(--ease-out-quart); }
.nav__cta:hover .nav__cta-arrow { transform: translateX(3px); }

.nav__burger {
  display: none;
  width: 30px; height: 30px;
  position: relative;
}
.nav__burger span {
  position: absolute; left: 4px; right: 4px;
  height: 1.5px; background: var(--paper);
  transition: transform 0.3s, top 0.3s;
}
.nav__burger span:nth-child(1) { top: 11px; }
.nav__burger span:nth-child(2) { top: 18px; }
.nav__burger[aria-expanded="true"] span:nth-child(1) { top: 14px; transform: rotate(45deg); }
.nav__burger[aria-expanded="true"] span:nth-child(2) { top: 14px; transform: rotate(-45deg); }

@media (max-width: 880px) {
  .nav { grid-template-columns: auto 1fr auto; }
  .nav__links {
    position: fixed;
    top: 0; left: 0;
    width: 100vw;
    height: 100vh;
    height: 100dvh;
    background: var(--ink-0);
    display: grid;
    place-items: center;
    transform: translateX(100%);
    transition: transform 0.5s var(--ease-out-expo);
    justify-self: stretch;
  }
  .nav__links.is-open { transform: translateX(0); }
  .nav__links ul {
    flex-direction: column;
    gap: 1.5rem;
    font-size: 1.5rem;
    text-align: center;
  }
  .nav__links a { color: var(--paper); }
  .nav__cta { display: none; }
  .nav__burger { display: block; z-index: 60; }
}

/* ─────────────── Typography primitives ─────────────── */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--brand-bright);
}
.eyebrow::before {
  content: "";
  width: 24px; height: 1px;
  background: var(--brand);
  display: inline-block;
}

/* ─────────────── Buttons ─────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 1rem 1.4rem;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.005em;
  border-radius: 999px;
  transition: transform 0.4s var(--ease-out-quart), background 0.3s, color 0.3s, border-color 0.3s, box-shadow 0.3s;
  position: relative;
  isolation: isolate;
}
.btn--primary {
  background: var(--brand);
  color: var(--paper);
  box-shadow: 0 18px 40px -12px var(--brand-glow);
}
.btn--primary:hover {
  background: var(--brand-bright);
  transform: translateY(-2px);
  box-shadow: 0 24px 50px -10px var(--brand-glow);
}
.btn--ghost {
  border: 1px solid var(--ink-4);
  color: var(--ink-7);
}
.btn--ghost:hover {
  border-color: var(--brand);
  color: var(--paper);
  background: oklch(0.50 0.28 264 / 0.10);
}
.btn--full { width: 100%; justify-content: center; }
.btn__arrow { transition: transform 0.4s var(--ease-out-quart); display: inline-block; }
.btn:hover .btn__arrow { transform: translateX(4px); }

/* ─────────────── Side rail ─────────────── */

.rail {
  position: fixed;
  right: clamp(1rem, 2vw, 2rem);
  top: 50%;
  transform: translateY(-50%);
  z-index: var(--z-rail);
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  pointer-events: none;
}
.rail__item {
  display: flex;
  align-items: baseline;
  gap: 0.65rem;
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--ink-5);
  transition: color 0.4s, transform 0.4s var(--ease-out-quart);
}
.rail__item--active {
  color: var(--paper);
  transform: translateX(-6px);
}
.rail__num {
  width: 1.5rem;
  display: inline-block;
}
.rail__label { text-transform: uppercase; }

@media (max-width: 1024px) { .rail { display: none; } }

/* ─────────────── HERO ─────────────── */

.hero {
  position: relative;
  z-index: var(--z-content);
  min-height: 100vh;
  display: grid;
  grid-template-rows: 1fr auto;
  padding: clamp(7rem, 12vh, 10rem) var(--pad-page-x) 4rem;
}

.hero__inner {
  max-width: var(--col-wide);
  width: 100%;
  margin-inline: auto;
  align-self: end;
}

.hero__kicker {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--brand-bright);
  margin-bottom: clamp(1.5rem, 3vh, 2.5rem);
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
}
.hero__kicker::before {
  content: "";
  width: 32px; height: 1px;
  background: var(--brand);
}

.hero__title {
  font-family: var(--display);
  font-weight: 900;
  font-size: clamp(3.25rem, 11vw, 11rem);
  line-height: 0.92;
  letter-spacing: -0.045em;
  color: var(--paper);
  margin-bottom: clamp(1.25rem, 2.5vh, 2rem);
}
.hero__title-line {
  display: block;
  overflow: hidden;
}
.hero__title-line--italic {
  color: var(--brand-bright);
  font-style: italic;
  font-weight: 800;
}

.hero__subtitle {
  max-width: 42ch;
  font-size: clamp(1rem, 1.4vw, 1.2rem);
  line-height: 1.45;
  color: var(--ink-6);
  margin-bottom: clamp(2rem, 4vh, 2.75rem);
}

.hero__ctas {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.hero__scroll {
  position: absolute;
  bottom: 2rem;
  right: var(--pad-page-x);
  display: flex;
  align-items: center;
  gap: 0.85rem;
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ink-6);
  writing-mode: horizontal-tb;
}
.hero__scroll-line {
  width: 56px;
  height: 1px;
  background: linear-gradient(90deg, var(--brand) 0%, transparent 100%);
  position: relative;
  overflow: hidden;
}
.hero__scroll-line::after {
  content: "";
  position: absolute;
  inset: 0;
  background: var(--paper);
  animation: scrollPulse 2.4s var(--ease-out-quart) infinite;
}
@keyframes scrollPulse {
  0%   { transform: translateX(-100%); }
  60%  { transform: translateX(100%); }
  100% { transform: translateX(100%); }
}

@media (max-width: 1024px) {
  .hero__scroll { right: 50%; transform: translateX(50%); }
}

/* ─────────────── INTRO ─────────────── */

.intro {
  position: relative;
  z-index: var(--z-content);
  max-width: var(--col-wide);
  margin: clamp(8rem, 16vh, 12rem) auto;
  padding: 0 var(--pad-page-x);
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(0, 3fr);
  gap: clamp(2rem, 5vw, 6rem);
  align-items: start;
}
.intro__col-eyebrow { padding-top: 0.65rem; }
.intro__headline {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(1.85rem, 4.4vw, 3.5rem);
  line-height: 1.05;
  letter-spacing: -0.035em;
  color: var(--paper);
  margin-bottom: 1.25rem;
}
.intro__body {
  max-width: 60ch;
  color: var(--ink-6);
  font-size: clamp(1rem, 1.2vw, 1.125rem);
  line-height: 1.6;
}

@media (max-width: 760px) {
  .intro { grid-template-columns: 1fr; }
}

/* ─────────────── MATERIALIEN ─────────────── */

.materials {
  position: relative;
  z-index: var(--z-content);
  padding: clamp(6rem, 12vh, 9rem) 0;
}
.materials__head {
  max-width: var(--col-wide);
  margin: 0 auto clamp(3rem, 6vh, 4.5rem);
  padding: 0 var(--pad-page-x);
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(0, 3fr);
  gap: clamp(2rem, 5vw, 6rem);
  align-items: end;
}
.materials__headline {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(1.85rem, 4.4vw, 3.5rem);
  line-height: 1.05;
  letter-spacing: -0.035em;
  color: var(--paper);
  margin-bottom: 1rem;
}
.materials__subline {
  max-width: 50ch;
  color: var(--ink-6);
}

@media (max-width: 760px) {
  .materials__head { grid-template-columns: 1fr; align-items: start; }
}

.materials__track {
  display: grid;
  gap: clamp(3rem, 6vh, 5rem);
}

.material-card {
  max-width: var(--col-wide);
  margin: 0 auto;
  width: 100%;
  padding: clamp(2rem, 4vw, 3.25rem) var(--pad-page-x);
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
  min-height: 80vh;
  position: relative;
}
.material-card__index {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  color: var(--brand-bright);
  margin-bottom: 0.75rem;
}
.material-card__name {
  font-family: var(--display);
  font-weight: 900;
  font-size: clamp(2.4rem, 6vw, 5rem);
  line-height: 0.95;
  letter-spacing: -0.04em;
  color: var(--paper);
  margin-bottom: 1.25rem;
}
.material-card__claim {
  font-family: var(--display);
  font-style: italic;
  font-weight: 600;
  font-size: clamp(1.1rem, 1.7vw, 1.5rem);
  color: var(--brand-bright);
  line-height: 1.25;
  margin-bottom: 1.5rem;
  max-width: 28ch;
}
.material-card__description {
  color: var(--ink-6);
  font-size: clamp(1rem, 1.1vw, 1.0625rem);
  line-height: 1.6;
  max-width: 50ch;
  margin-bottom: 2rem;
}

.material-card__stats {
  display: grid;
  gap: 1.25rem;
  align-self: start;
  position: sticky;
  top: 8rem;
  border-top: 1px solid var(--ink-4);
  padding-top: 1.5rem;
}
.material-card__stat {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--ink-3);
}
.material-card__stat:last-child { border-bottom: 0; padding-bottom: 0; }
.material-card__stat-label {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-5);
}
.material-card__stat-value {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(1.1rem, 1.5vw, 1.4rem);
  color: var(--paper);
  letter-spacing: -0.01em;
}

@media (max-width: 880px) {
  .material-card { grid-template-columns: 1fr; min-height: auto; }
  .material-card__stats { position: relative; top: auto; }
}

.materials__progress {
  position: sticky;
  bottom: 1.5rem;
  margin: 2rem auto 0;
  width: clamp(120px, 18vw, 200px);
  height: 1px;
  background: var(--ink-3);
  overflow: hidden;
}
.materials__progress-fill {
  height: 100%;
  width: 0%;
  background: var(--brand);
  transition: width 0.1s linear;
}

/* ─────────────── SPEKTRUM ─────────────── */

.spectrum {
  position: relative;
  z-index: var(--z-content);
  background: linear-gradient(180deg, transparent 0%, var(--ink-2) 30%, var(--ink-2) 70%, transparent 100%);
  padding: clamp(7rem, 14vh, 10rem) 0;
  margin: clamp(6rem, 10vh, 8rem) 0;
}
.spectrum__head {
  max-width: var(--col-wide);
  margin: 0 auto clamp(4rem, 8vh, 6rem);
  padding: 0 var(--pad-page-x);
  display: grid;
  grid-template-columns: minmax(180px, 1fr) minmax(0, 3fr);
  gap: clamp(2rem, 5vw, 6rem);
  align-items: end;
}
.spectrum__headline {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(1.85rem, 4.4vw, 3.5rem);
  line-height: 1.05;
  letter-spacing: -0.035em;
  color: var(--paper);
  margin-bottom: 1rem;
}
.spectrum__body {
  max-width: 60ch;
  color: var(--ink-6);
}

@media (max-width: 760px) {
  .spectrum__head { grid-template-columns: 1fr; align-items: start; }
}

.spectrum__list {
  max-width: var(--col-wide);
  margin: 0 auto;
  padding: 0 var(--pad-page-x);
  display: grid;
  gap: 0;
}
.spectrum-tier {
  display: grid;
  grid-template-columns: minmax(140px, 0.6fr) minmax(0, 1.4fr) minmax(0, 1fr);
  align-items: baseline;
  gap: clamp(1rem, 3vw, 3rem);
  padding: clamp(1.4rem, 3vh, 2.2rem) 0;
  border-top: 1px solid var(--ink-4);
  position: relative;
  overflow: hidden;
}
.spectrum-tier:last-child { border-bottom: 1px solid var(--ink-4); }

.spectrum-tier__bar {
  position: absolute;
  left: 0; bottom: 0; top: 0;
  width: var(--bar, 0%);
  background: linear-gradient(90deg, oklch(0.50 0.28 264 / 0.12) 0%, transparent 100%);
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 1.2s var(--ease-out-expo);
  z-index: -1;
}
.spectrum-tier.is-visible .spectrum-tier__bar { transform: scaleX(1); }

.spectrum-tier__size {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(1.5rem, 3vw, 2.4rem);
  letter-spacing: -0.025em;
  color: var(--paper);
}
.spectrum-tier__label {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(1.05rem, 1.4vw, 1.25rem);
  color: var(--ink-7);
}
.spectrum-tier__note {
  color: var(--ink-6);
  font-size: 0.95rem;
}

@media (max-width: 760px) {
  .spectrum-tier {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }
}

/* ─────────────── PROZESS ─────────────── */

.process {
  position: relative;
  z-index: var(--z-content);
  max-width: var(--col-wide);
  margin: clamp(7rem, 12vh, 10rem) auto;
  padding: 0 var(--pad-page-x);
}
.process__head {
  max-width: 60ch;
  margin-bottom: clamp(3rem, 6vh, 5rem);
}
.process__headline {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(1.85rem, 4.4vw, 3.5rem);
  line-height: 1.05;
  letter-spacing: -0.035em;
  color: var(--paper);
  margin-top: 1rem;
}

.process__steps {
  display: grid;
  gap: clamp(1.25rem, 2.5vh, 2rem);
}
.process-step {
  display: grid;
  grid-template-columns: 5rem minmax(0, 1fr);
  gap: clamp(1.25rem, 3vw, 2.5rem);
  padding: clamp(1.5rem, 3vh, 2.25rem) clamp(1.5rem, 3vw, 2.25rem);
  border: 1px solid var(--ink-3);
  background: oklch(0.10 0.02 260 / 0.55);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border-radius: 4px;
  transition: border-color 0.4s, transform 0.5s var(--ease-out-quart);
  align-items: start;
}
.process-step:hover {
  border-color: var(--brand);
  transform: translateY(-2px);
}
.process-step__no {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  color: var(--brand-bright);
}
.process-step__title {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(1.2rem, 1.8vw, 1.5rem);
  letter-spacing: -0.015em;
  color: var(--paper);
  margin-bottom: 0.5rem;
}
.process-step__body {
  color: var(--ink-6);
  max-width: 60ch;
}

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

/* ─────────────── REFERENZEN ─────────────── */

.references {
  position: relative;
  z-index: var(--z-content);
  max-width: var(--col-wide);
  margin: clamp(7rem, 12vh, 10rem) auto;
  padding: 0 var(--pad-page-x);
}
.references__head {
  max-width: 60ch;
  margin-bottom: clamp(3rem, 6vh, 5rem);
}
.references__headline {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(1.85rem, 4.4vw, 3.5rem);
  line-height: 1.05;
  letter-spacing: -0.035em;
  color: var(--paper);
  margin-top: 1rem;
  margin-bottom: 1rem;
}
.references__body { color: var(--ink-6); }

.references__grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(1rem, 2vw, 1.5rem);
}

.reference-card {
  position: relative;
  overflow: hidden;
  background: var(--ink-3);
  aspect-ratio: 4 / 3;
  border-radius: 2px;
  cursor: pointer;
}
.reference-card:nth-child(1) { grid-column: span 7; aspect-ratio: 16 / 10; }
.reference-card:nth-child(2) { grid-column: span 5; aspect-ratio: 4 / 3; }
.reference-card:nth-child(3) { grid-column: span 5; aspect-ratio: 4 / 3; }
.reference-card:nth-child(4) { grid-column: span 7; aspect-ratio: 16 / 10; }

.reference-card__img {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform 0.9s var(--ease-out-quart);
}
.reference-card:hover .reference-card__img { transform: scale(1.06); }

.reference-card__overlay {
  position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 40%, oklch(0.04 0.02 260 / 0.85) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: clamp(1.25rem, 2vw, 1.75rem);
  gap: 0.35rem;
}
.reference-card__title {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(1.05rem, 1.6vw, 1.3rem);
  color: var(--paper);
  letter-spacing: -0.01em;
}
.reference-card__meta {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-7);
}

@media (max-width: 760px) {
  .references__grid { grid-template-columns: 1fr; }
  .reference-card { grid-column: 1 !important; aspect-ratio: 4 / 3 !important; }
}

/* ─────────────── KONTAKT ─────────────── */

.contact {
  position: relative;
  z-index: var(--z-content);
  background: linear-gradient(180deg, transparent 0%, var(--ink-0) 30%, var(--ink-0) 100%);
  padding: clamp(7rem, 14vh, 10rem) var(--pad-page-x);
}
.contact__inner {
  max-width: var(--col-wide);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(3rem, 6vw, 6rem);
  align-items: start;
}
.contact__headline {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(2rem, 4.8vw, 4rem);
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--paper);
  margin-top: 1rem;
  margin-bottom: 1.5rem;
}
.contact__body {
  color: var(--ink-6);
  max-width: 50ch;
  margin-bottom: 3rem;
}

.contact__channels {
  display: grid;
  gap: 1.25rem;
  border-top: 1px solid var(--ink-4);
  padding-top: 1.75rem;
}
.contact__channels li {
  display: grid;
  grid-template-columns: 7rem 1fr;
  gap: 1rem;
  align-items: baseline;
}
.contact__channel-label {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-5);
}
.contact__channel-value {
  font-family: var(--display);
  font-weight: 600;
  font-size: clamp(1.05rem, 1.4vw, 1.2rem);
  color: var(--paper);
  transition: color 0.2s;
}
a.contact__channel-value:hover { color: var(--brand-bright); }

.contact__form {
  display: grid;
  gap: 1rem;
  padding: clamp(1.75rem, 3vw, 2.5rem);
  background: var(--ink-2);
  border: 1px solid var(--ink-3);
  border-radius: 6px;
}

.field { display: grid; gap: 0.4rem; }
.field__label {
  font-family: var(--mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-5);
}
.field__input {
  background: oklch(0.07 0.02 260);
  border: 1px solid var(--ink-3);
  border-radius: 4px;
  padding: 0.85rem 1rem;
  color: var(--paper);
  transition: border-color 0.2s, background 0.2s;
}
.field__input:focus {
  outline: none;
  border-color: var(--brand);
  background: oklch(0.09 0.03 260);
}
.field__input--area { resize: vertical; min-height: 7rem; font-family: var(--body); }

.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 540px) { .field-row { grid-template-columns: 1fr; } }

.contact__form-hint {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--brand-bright);
  min-height: 1.2em;
}

@media (max-width: 880px) {
  .contact__inner { grid-template-columns: 1fr; }
}

/* ─────────────── FOOTER ─────────────── */

.footer {
  position: relative;
  z-index: var(--z-content);
  padding: clamp(4rem, 8vh, 6rem) var(--pad-page-x) 2rem;
  background: var(--ink-0);
  border-top: 1px solid var(--ink-3);
}
.footer__claim {
  max-width: var(--col-wide);
  margin: 0 auto clamp(3rem, 6vh, 4.5rem);
  font-family: var(--display);
  font-style: italic;
  font-weight: 700;
  font-size: clamp(2rem, 6vw, 5rem);
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--brand-bright);
}
.footer__bottom {
  max-width: var(--col-wide);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  padding-top: 2rem;
  border-top: 1px solid var(--ink-3);
}
.footer__copy {
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-5);
  letter-spacing: 0.05em;
}
.footer__links {
  display: flex;
  gap: 1.5rem;
}
.footer__links a {
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-6);
  transition: color 0.2s;
}
.footer__links a:hover { color: var(--paper); }

/* ─────────────── Legal pages (Impressum, Datenschutz) ─────────────── */

.legal-page {
  min-height: 100vh;
  background:
    radial-gradient(ellipse 80% 50% at 50% 0%, oklch(0.16 0.04 262) 0%, transparent 70%),
    var(--ink-1);
}

.legal-hero {
  position: relative;
  z-index: var(--z-content);
  padding: clamp(7rem, 14vh, 10rem) var(--pad-page-x) clamp(3rem, 6vh, 4.5rem);
  max-width: var(--col-wide);
  margin: 0 auto;
  border-bottom: 1px solid var(--ink-3);
}
.legal-hero__back {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-6);
  margin-bottom: clamp(2rem, 4vh, 3rem);
  transition: color 0.2s, transform 0.4s var(--ease-out-quart);
}
.legal-hero__back:hover { color: var(--paper); transform: translateX(-3px); }
.legal-hero__back-arrow { transition: transform 0.4s var(--ease-out-quart); }
.legal-hero__back:hover .legal-hero__back-arrow { transform: translateX(-3px); }

.legal-hero__title {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(2.5rem, 7vw, 5.5rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
  color: var(--paper);
  margin-bottom: 0.75rem;
}
.legal-hero__title-italic {
  font-style: italic;
  color: var(--brand-bright);
  font-weight: 700;
}

.legal-hero__lead {
  max-width: 60ch;
  font-size: clamp(1rem, 1.2vw, 1.125rem);
  color: var(--ink-6);
  line-height: 1.6;
}

.legal-content {
  position: relative;
  z-index: var(--z-content);
  max-width: 78ch;
  margin: 0 auto;
  padding: clamp(3rem, 6vh, 4.5rem) var(--pad-page-x) clamp(5rem, 10vh, 8rem);
  color: var(--ink-7);
  line-height: 1.7;
}

.legal-content h2 {
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(1.4rem, 2.4vw, 1.85rem);
  line-height: 1.15;
  letter-spacing: -0.025em;
  color: var(--paper);
  margin: clamp(2.5rem, 5vh, 3.5rem) 0 1rem;
  padding-top: clamp(2rem, 4vh, 2.5rem);
  border-top: 1px solid var(--ink-3);
}
.legal-content h2:first-child { padding-top: 0; border-top: 0; margin-top: 0; }

.legal-content h3 {
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(1.05rem, 1.5vw, 1.2rem);
  letter-spacing: -0.01em;
  color: var(--paper);
  margin: 1.75rem 0 0.5rem;
}

.legal-content p {
  margin: 0 0 1.1rem;
  color: var(--ink-7);
}

.legal-content a {
  color: var(--brand-bright);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  transition: color 0.2s;
}
.legal-content a:hover { color: var(--paper); }

.legal-content ul,
.legal-content ol {
  margin: 0 0 1.25rem 1.25rem;
  padding-left: 0.75rem;
}
.legal-content ul li {
  list-style: disc;
  margin-bottom: 0.35rem;
  color: var(--ink-7);
}
.legal-content ol li {
  list-style: decimal;
  margin-bottom: 0.35rem;
  color: var(--ink-7);
}

.legal-content dl {
  display: grid;
  grid-template-columns: minmax(140px, max-content) 1fr;
  gap: 0.45rem 1.5rem;
  margin: 0 0 1.5rem;
  padding: 1.25rem 1.5rem;
  background: oklch(0.10 0.02 260 / 0.55);
  border: 1px solid var(--ink-3);
  border-radius: 4px;
}
.legal-content dt {
  font-family: var(--mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-5);
  padding-top: 0.15rem;
}
.legal-content dd {
  margin: 0;
  color: var(--paper);
  font-weight: 500;
}

.legal-content blockquote {
  margin: 1.5rem 0;
  padding: 1rem 1.25rem;
  border-left: 2px solid var(--brand);
  background: oklch(0.50 0.28 264 / 0.06);
  font-style: italic;
  color: var(--ink-6);
}

.legal-content .placeholder {
  display: block;
  padding: 1.25rem 1.5rem;
  margin: 0.5rem 0 1.5rem;
  border: 1px dashed var(--brand);
  background: oklch(0.50 0.28 264 / 0.04);
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--brand-bright);
  border-radius: 4px;
}

.legal-content .meta {
  margin-top: clamp(3rem, 6vh, 4.5rem);
  padding-top: 1.5rem;
  border-top: 1px solid var(--ink-3);
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--ink-5);
  letter-spacing: 0.05em;
}

@media (max-width: 640px) {
  .legal-content dl { grid-template-columns: 1fr; gap: 0.25rem; }
  .legal-content dt { padding-top: 0.5rem; }
}

/* ─────────────── Reveal animations (initial state, GSAP overrides) ─────────────── */

.is-reveal { opacity: 0; }
.no-js .is-reveal { opacity: 1; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}