/* ==========================================================================
   KHK Bike GmbH — Onepager
   Designsystem nach DESIGN.md: flache Flächen, monochrome Tonwerte,
   Signal Orange als einziger funktionaler Akzent, Pill-Buttons, 8px-Raster.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Fonts (lokal, variable 300–800)
   -------------------------------------------------------------------------- */
@font-face {
  font-family: "Open Sans";
  font-style: normal;
  font-weight: 300 800;
  font-display: swap;
  src: url("../assets/fonts/open-sans-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191,
    U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Open Sans";
  font-style: normal;
  font-weight: 300 800;
  font-display: swap;
  src: url("../assets/fonts/open-sans-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF,
    U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020,
    U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* --------------------------------------------------------------------------
   2. Tokens
   -------------------------------------------------------------------------- */
:root {
  color-scheme: light;

  /* Farben */
  --color-onyx: #000000;
  --color-paper: #ffffff;
  --color-fog: #ededed;
  --color-slate: #6c7073;
  --color-graphite: #595959;
  --color-iron: #303233;
  --color-ash: #8c8c8c;
  --color-carbon: #272727;
  --color-signal-orange: #ff6a13;      /* knalliger Akzent: Flaechen, Punkte, Icons */
  --color-signal-orange-deep: #e85d05; /* Hover-Zustand gefuellter Buttons */
  --color-ember: #c2410c;              /* barrierefreies Orange fuer Text und Links */
  --color-ember-deep: #9a3412;         /* Hover-Zustand von Textlinks */

  /* Oberflächen */
  --surface-hero-void: var(--color-onyx);
  --surface-page-canvas: var(--color-fog);
  --surface-card: var(--color-paper);
  --surface-footer: var(--color-carbon);
  --hairline-light: #e2e2e2;
  --hairline-dark: #2c2e30;

  /* Typografie */
  --font-sans: "Open Sans", ui-sans-serif, system-ui, -apple-system,
    BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --text-caption: 0.75rem;      /* 12 */
  --text-body-sm: 0.875rem;     /* 14 */
  --text-body: 1rem;            /* 16 */
  --text-subheading: 1.25rem;   /* 20 */
  --text-heading-sm: 1.5rem;    /* 24 */
  --text-heading: clamp(1.75rem, 1.35rem + 1.6vw, 2.625rem);  /* 28–42 */
  --text-display: clamp(2.625rem, 1.7rem + 4.4vw, 4.75rem);   /* 42–76 */
  --leading-tight: 1.12;
  --leading-heading: 1.25;
  --leading-body: 1.6;
  --tracking-display: -0.03em;
  --tracking-heading: -0.02em;
  --weight-light: 300;
  --weight-regular: 400;
  --weight-medium: 500;
  --weight-semibold: 600;

  /* Raster & Layout */
  --space-1: 8px;
  --space-2: 16px;
  --space-3: 24px;
  --space-4: 32px;
  --space-5: 40px;
  --space-6: 48px;
  --space-8: 64px;
  --space-11: 88px;
  --space-14: 112px;
  --page-max: 1200px;
  --gutter: clamp(20px, 4vw, 40px);
  --header-h: 64px;

  /* Radien */
  --radius-card: 4px;
  --radius-pill: 64px;
  --radius-tag: 99px;

  /* Schatten — ausschließlich Sticky-Nav & schwebende Elemente */
  --shadow-nav: rgba(0, 0, 0, 0.1) 0px 8px 16px 0px;
  --shadow-float: rgba(0, 0, 0, 0.1) 0px 16px 16px 0px;

  /* Bewegung */
  --ease-out: cubic-bezier(0.22, 0.61, 0.36, 1);
  --dur-fast: 180ms;
  --dur-med: 320ms;
  --dur-reveal: 640ms;
}

/* --------------------------------------------------------------------------
   3. Reset & Basis
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--text-body);
  font-weight: var(--weight-regular);
  line-height: var(--leading-body);
  color: var(--color-iron);
  background: var(--color-paper);
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, p, ul, ol, dl, dd, figure, fieldset {
  margin: 0;
  padding: 0;
}

ul, ol {
  list-style: none;
}

fieldset {
  border: 0;
}

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

a {
  color: var(--color-ember);
  text-decoration: none;
}

a:hover {
  color: var(--color-ember-deep);
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--color-ember);
  outline-offset: 3px;
  border-radius: 2px;
}

.theme-dark :focus-visible,
.site-footer :focus-visible,
.lightbox :focus-visible {
  outline-color: var(--color-paper);
}

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

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 200;
  padding: 12px 24px;
  background: var(--color-onyx);
  color: var(--color-paper);
  border-radius: var(--radius-pill);
  font-size: var(--text-body-sm);
  font-weight: var(--weight-medium);
  transform: translateY(-200%);
}

.skip-link:focus-visible {
  transform: none;
  color: var(--color-paper);
}

/* --------------------------------------------------------------------------
   4. Layout-Utilities
   -------------------------------------------------------------------------- */
.wrap {
  width: 100%;
  max-width: calc(var(--page-max) + 2 * var(--gutter));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  padding-block: clamp(72px, 6vw + 40px, 128px);
  scroll-margin-top: calc(var(--header-h) + 8px);
}

.theme-dark {
  background: var(--surface-hero-void);
  color: var(--color-fog);
}

.theme-canvas {
  background: var(--surface-page-canvas);
}

.kicker {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: var(--text-caption);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-slate);
}

.kicker::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--color-signal-orange);
  flex: none;
}

.theme-dark .kicker {
  color: var(--color-ash);
}

.section-head {
  max-width: 760px;
  margin-bottom: clamp(40px, 4vw, 64px);
}

.section-head h2,
.section-head h1 {
  margin-top: var(--space-2);
  font-size: var(--text-heading);
  font-weight: var(--weight-light);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-onyx);
  text-wrap: balance;
}

.theme-dark .section-head h2 {
  color: var(--color-paper);
}

.section-head .lead {
  margin-top: var(--space-3);
  max-width: 62ch;
  color: var(--color-graphite);
}

.theme-dark .section-head .lead {
  color: var(--color-fog);
}

/* --------------------------------------------------------------------------
   5. Buttons & Chips
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  font-size: 0.9375rem;
  font-weight: var(--weight-medium);
  line-height: 1.2;
  white-space: nowrap;
  transition: background-color var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out);
}

.btn .chev {
  transition: transform var(--dur-fast) var(--ease-out);
}

.btn:hover .chev {
  transform: translateX(3px);
}

.btn--primary {
  background: var(--color-signal-orange);
  color: var(--color-onyx);
}

.btn--primary:hover {
  background: var(--color-signal-orange-deep);
  color: var(--color-onyx);
}

.btn--ghost {
  border: 1px solid var(--color-iron);
  color: var(--color-iron);
}

.btn--ghost:hover {
  border-color: var(--color-onyx);
  color: var(--color-onyx);
}

.btn--ghost-light {
  border: 1px solid rgba(255, 255, 255, 0.55);
  color: var(--color-paper);
}

.btn--ghost-light:hover {
  border-color: var(--color-paper);
  color: var(--color-paper);
}

.chip {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 8px 20px;
  border-radius: var(--radius-tag);
  background: var(--color-paper);
  color: var(--color-graphite);
  font-size: var(--text-body-sm);
  line-height: 1.3;
}

/* --------------------------------------------------------------------------
   6. Header & Navigation
   -------------------------------------------------------------------------- */
.site-head {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-paper);
  border-bottom: 1px solid var(--hairline-light);
  transition: box-shadow var(--dur-med) var(--ease-out);
}

.site-head.is-elevated {
  box-shadow: var(--shadow-nav);
}

.head-inner {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 6px;
  font-size: 1.25rem;
  font-weight: var(--weight-semibold);
  letter-spacing: 0.01em;
  color: var(--color-onyx);
  line-height: 1;
}

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

.brand .brand-light {
  font-weight: var(--weight-light);
  color: var(--color-iron);
}

.brand .brand-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-signal-orange);
  align-self: center;
  margin-top: 2px;
}

.brand img {
  display: block;
  height: 44px;
  width: auto;
}

.main-nav {
  margin-left: auto;
}

.main-nav ul {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.main-nav a {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 10px 2px;
  font-size: var(--text-body-sm);
  font-weight: var(--weight-medium);
  color: var(--color-iron);
  white-space: nowrap;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 2px;
  height: 2px;
  background: var(--color-signal-orange);
  opacity: 0;
  transition: opacity var(--dur-fast) var(--ease-out);
}

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

.main-nav a[aria-current="true"] {
  color: var(--color-ember);
}

.main-nav a[aria-current="true"]::after {
  opacity: 1;
}

.nav-contact {
  display: none;
}

.head-cta {
  min-height: 40px;
  padding: 8px 24px;
  font-size: var(--text-body-sm);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  margin-right: -8px;
  border-radius: var(--radius-card);
  color: var(--color-iron);
  align-items: center;
  justify-content: center;
}

.nav-toggle svg {
  display: block;
}

.nav-toggle .icon-close,
.nav-toggle[aria-expanded="true"] .icon-burger {
  display: none;
}

.nav-toggle[aria-expanded="true"] .icon-close {
  display: block;
}

@media (max-width: 1120px) {
  .nav-toggle {
    display: inline-flex;
    margin-left: auto;
  }

  .head-cta {
    display: none;
  }

  .main-nav {
    position: fixed;
    inset: var(--header-h) 0 0 0;
    margin: 0;
    background: var(--color-paper);
    padding: var(--space-4) var(--gutter) var(--space-6);
    overflow-y: auto;
    display: none;
  }

  .main-nav.is-open {
    display: block;
  }

  .main-nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .main-nav li {
    border-bottom: 1px solid var(--hairline-light);
  }

  .main-nav a {
    width: 100%;
    padding: 18px 2px;
    font-size: var(--text-subheading);
    font-weight: var(--weight-regular);
  }

  .main-nav a::after {
    content: none;
  }

  .nav-contact {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
    margin-top: var(--space-4);
    border: 0;
  }

  .nav-contact .btn {
    width: 100%;
  }

  .nav-contact .nav-contact-line {
    display: flex;
    flex-wrap: wrap;
    gap: 4px 20px;
    font-size: var(--text-body-sm);
    color: var(--color-graphite);
  }

  .nav-contact .nav-contact-line a {
    color: var(--color-iron);
    font-weight: var(--weight-medium);
    padding: 8px 0;
  }

  body.nav-locked {
    overflow: hidden;
  }
}

/* --------------------------------------------------------------------------
   7. Hero
   -------------------------------------------------------------------------- */
.hero {
  background: var(--surface-hero-void);
  color: var(--color-fog);
  scroll-margin-top: var(--header-h);
}

.hero-main {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
  padding-block: clamp(64px, 7vw, 112px) clamp(40px, 4vw, 64px);
  min-height: calc(100svh - var(--header-h) - 88px);
}

.hero-eyebrow {
  font-size: var(--text-caption);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-ash);
}

.hero h1 {
  margin-top: var(--space-3);
  font-size: var(--text-display);
  font-weight: var(--weight-light);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-display);
  color: var(--color-paper);
  text-wrap: balance;
}

.hero-lead {
  margin-top: var(--space-3);
  max-width: 54ch;
  font-size: clamp(1rem, 0.95rem + 0.3vw, 1.125rem);
  color: var(--color-fog);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-5);
}

/* Produktbühne */
.stage {
  min-width: 0;
}

.stage-frame {
  position: relative;
  aspect-ratio: 3 / 2;
}

.stage-frame img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: opacity var(--dur-fast) var(--ease-out);
}

.stage-frame img.is-swapping {
  opacity: 0;
}

.stage-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2) var(--space-3);
  margin-top: var(--space-2);
}

.stage-caption {
  font-size: var(--text-caption);
  letter-spacing: 0.04em;
  color: var(--color-slate);
}

.stage-caption strong {
  display: block;
  font-size: var(--text-body-sm);
  font-weight: var(--weight-medium);
  letter-spacing: normal;
  color: var(--color-fog);
}

.swatches {
  display: flex;
  gap: 4px;
}

.swatch {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  min-width: 52px;
  padding: 8px 6px;
  cursor: pointer;
  border-radius: var(--radius-card);
}

.swatch input {
  position: absolute;
  inset: 0;
  opacity: 0;
  margin: 0;
  cursor: pointer;
}

.swatch-dot {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--swatch, #ccc);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.28);
  transition: transform var(--dur-fast) var(--ease-out);
}

.swatch-name {
  font-size: var(--text-caption);
  color: var(--color-ash);
  transition: color var(--dur-fast) var(--ease-out);
}

.swatch:hover .swatch-name {
  color: var(--color-fog);
}

.swatch input:checked ~ .swatch-dot {
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.28),
    0 0 0 2px var(--color-onyx), 0 0 0 4px var(--color-paper);
}

.swatch input:checked ~ .swatch-name {
  color: var(--color-paper);
  font-weight: var(--weight-medium);
}

.swatch input:focus-visible ~ .swatch-dot {
  outline: 2px solid var(--color-signal-orange);
  outline-offset: 3px;
}

/* Faktenleiste */
.hero-facts {
  border-top: 1px solid var(--hairline-dark);
}

.hero-facts ul {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-3);
  padding-block: var(--space-3) var(--space-4);
}

.hero-facts li {
  display: flex;
  gap: 12px;
  align-items: baseline;
  font-size: var(--text-body-sm);
  color: var(--color-fog);
}

.hero-facts li::before {
  content: "";
  flex: none;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-signal-orange);
  transform: translateY(-2px);
}

@media (max-width: 960px) {
  .hero-main {
    grid-template-columns: 1fr;
    min-height: 0;
    padding-top: var(--space-6);
  }

  .stage {
    max-width: 640px;
  }

  .hero-facts ul {
    grid-template-columns: 1fr;
    gap: var(--space-2);
  }
}

/* --------------------------------------------------------------------------
   8. Unternehmen
   -------------------------------------------------------------------------- */
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: clamp(32px, 5vw, 88px);
}

.about-grid .about-statement {
  font-size: var(--text-subheading);
  font-weight: var(--weight-light);
  line-height: 1.5;
  color: var(--color-iron);
  max-width: 44ch;
}

.about-copy p {
  color: var(--color-graphite);
  max-width: 62ch;
}

.about-copy p + p {
  margin-top: var(--space-3);
}

.about-facts {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-3);
  margin-top: clamp(48px, 5vw, 80px);
  padding-top: var(--space-4);
  border-top: 1px solid var(--hairline-light);
}

.about-facts > div {
  min-width: 0;
}

.about-facts dt {
  font-size: var(--text-caption);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-slate);
  margin-bottom: 6px;
}

.about-facts dd {
  font-size: var(--text-body-sm);
  color: var(--color-iron);
  line-height: 1.5;
}

@media (max-width: 860px) {
  .about-grid {
    grid-template-columns: 1fr;
  }

  .about-facts {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 480px) {
  .about-facts {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------------------------------------
   9. Leistungen
   -------------------------------------------------------------------------- */
.service-list {
  display: grid;
  gap: var(--space-1);
  counter-reset: service;
}

.service-row {
  display: grid;
  grid-template-columns: 72px minmax(0, 4fr) minmax(0, 7fr);
  gap: var(--space-3);
  align-items: start;
  background: var(--surface-card);
  border-radius: var(--radius-card);
  padding: clamp(24px, 3vw, 40px);
}

.service-num {
  font-size: var(--text-body-sm);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.08em;
  color: var(--color-ember);
  line-height: 2;
}

.service-row h3 {
  font-size: var(--text-heading-sm);
  font-weight: var(--weight-semibold);
  line-height: 1.33;
  letter-spacing: var(--tracking-heading);
  color: var(--color-onyx);
}

.service-row .service-body p {
  color: var(--color-graphite);
  max-width: 66ch;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 18px;
  margin-top: var(--space-2);
  font-size: var(--text-body-sm);
  color: var(--color-slate);
}

.service-tags li {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.service-tags li::before {
  content: "";
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-ash);
  transform: translateY(-3px);
}

@media (max-width: 860px) {
  .service-row {
    grid-template-columns: 1fr;
    gap: var(--space-2);
  }

  .service-num {
    line-height: 1.4;
  }
}

/* --------------------------------------------------------------------------
   10. Fertigung (Rahmen & Produktion, dunkel)
   -------------------------------------------------------------------------- */
.craft-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(32px, 5vw, 88px);
}

.craft-grid h3 {
  font-size: var(--text-subheading);
  font-weight: var(--weight-semibold);
  color: var(--color-paper);
  margin-bottom: var(--space-2);
}

.craft-grid p {
  color: var(--color-fog);
  opacity: 0.92;
  max-width: 58ch;
}

.craft-grid p + p {
  margin-top: var(--space-2);
}

.geometry {
  margin-top: clamp(40px, 5vw, 72px);
  overflow: hidden;
}

.geometry img {
  display: block;
  width: min(100%, 520px);
  height: auto;
  margin-inline: auto;
}

.craft-checks {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-3);
  margin-top: clamp(40px, 5vw, 72px);
  padding-top: var(--space-4);
  border-top: 1px solid var(--hairline-dark);
}

.craft-checks li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: var(--text-body-sm);
  color: var(--color-fog);
  line-height: 1.5;
}

.craft-checks svg {
  flex: none;
  margin-top: 2px;
  color: var(--color-signal-orange);
}

@media (max-width: 860px) {
  .craft-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 560px) {
  .craft-checks {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------------------------------------
   11. Design & Dekor
   -------------------------------------------------------------------------- */
.dekor-head {
  display: grid;
  grid-template-columns: minmax(0, 6fr) minmax(0, 5fr);
  gap: clamp(24px, 4vw, 72px);
  align-items: end;
  margin-bottom: clamp(40px, 4vw, 64px);
}

.dekor-title {
  margin-top: var(--space-2);
  font-size: var(--text-heading);
  font-weight: var(--weight-light);
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-heading);
  color: var(--color-onyx);
  text-wrap: balance;
}

.dekor-head .lead {
  color: var(--color-graphite);
  max-width: 52ch;
}

.dekor-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-2);
}

.dekor-tile {
  background: var(--surface-page-canvas);
  border-radius: var(--radius-card);
  padding: var(--space-3);
}

.dekor-tile img {
  aspect-ratio: 3 / 2;
  object-fit: contain;
  width: 100%;
}

.dekor-tile figcaption {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: var(--space-2);
  font-size: var(--text-caption);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: var(--weight-semibold);
  color: var(--color-slate);
}

.dekor-tile figcaption::before {
  content: "";
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--dot, #ccc);
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.12);
}

.dekor-note {
  margin-top: var(--space-3);
  font-size: var(--text-body-sm);
  color: var(--color-slate);
}

@media (max-width: 860px) {
  .dekor-head {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .dekor-strip {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 480px) {
  .dekor-tile {
    padding: var(--space-2);
  }

  .dekor-tile figcaption {
    letter-spacing: 0.06em;
  }
}

/* --------------------------------------------------------------------------
   12. Fahrräder / Portfolio
   -------------------------------------------------------------------------- */
.folio-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-bottom: var(--space-4);
}

.filter-btn {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 22px;
  border-radius: var(--radius-tag);
  background: var(--color-paper);
  color: var(--color-iron);
  font-size: var(--text-body-sm);
  font-weight: var(--weight-medium);
  transition: background-color var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out);
}

.filter-btn:hover {
  color: var(--color-onyx);
  background: #f7f7f7;
}

.filter-btn[aria-pressed="true"] {
  background: var(--color-onyx);
  color: var(--color-paper);
}

.folio-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-2);
}

.folio-card {
  display: block;
  width: 100%;
  text-align: left;
  background: var(--surface-card);
  border-radius: var(--radius-card);
  overflow: hidden;
  cursor: zoom-in;
}

.folio-inner {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.folio-media {
  position: relative;
  aspect-ratio: 3 / 2;
  background: var(--color-paper);
  overflow: hidden;
}

.folio-media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  transition: transform var(--dur-med) var(--ease-out);
}

.folio-card:hover .folio-media img,
.folio-card:focus-visible .folio-media img {
  transform: scale(1.025);
}

.folio-media .zoom-hint {
  position: absolute;
  right: 12px;
  bottom: 12px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--color-paper);
  color: var(--color-iron);
  opacity: 0;
  transition: opacity var(--dur-fast) var(--ease-out);
  box-shadow: inset 0 0 0 1px var(--hairline-light);
}

.folio-card:hover .zoom-hint,
.folio-card:focus-visible .zoom-hint {
  opacity: 1;
}

.folio-copy {
  display: grid;
  gap: 2px;
  padding: var(--space-2) var(--space-3) var(--space-3);
  border-top: 1px solid #f4f4f4;
}

.folio-cat {
  font-size: var(--text-caption);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-slate);
}

.folio-title {
  font-size: 1.0625rem;
  font-weight: var(--weight-semibold);
  color: var(--color-onyx);
  letter-spacing: -0.01em;
  transition: color var(--dur-fast) var(--ease-out);
}

.folio-card:hover .folio-title {
  color: var(--color-ember);
}

.folio-desc {
  font-size: var(--text-body-sm);
  color: var(--color-graphite);
}

.folio-count {
  margin-top: var(--space-3);
  font-size: var(--text-body-sm);
  color: var(--color-slate);
}

/* Typenspektrum */
.types {
  margin-top: clamp(56px, 6vw, 88px);
  padding-top: var(--space-5);
  border-top: 1px solid var(--hairline-light);
}

.types h3 {
  font-size: var(--text-subheading);
  font-weight: var(--weight-semibold);
  color: var(--color-onyx);
}

.types > p {
  margin-top: var(--space-1);
  max-width: 66ch;
  color: var(--color-graphite);
  font-size: var(--text-body-sm);
}

.types ul {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
  margin-top: var(--space-3);
}

@media (max-width: 1020px) {
  .folio-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .folio-grid {
    grid-template-columns: 1fr;
  }
}

/* --------------------------------------------------------------------------
   13. Kontakt
   -------------------------------------------------------------------------- */
.contact .section-head {
  margin-bottom: clamp(40px, 4vw, 56px);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--space-2);
  max-width: 920px;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: clamp(24px, 3vw, 40px);
  border: 1px solid var(--hairline-dark);
  border-radius: var(--radius-card);
  color: var(--color-paper);
  transition: border-color var(--dur-fast) var(--ease-out);
}

.contact-card:hover {
  border-color: var(--color-ash);
  color: var(--color-paper);
}

.contact-card .contact-icon {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--hairline-dark);
  color: var(--color-signal-orange);
}

.contact-card .contact-label {
  display: block;
  font-size: var(--text-caption);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-ash);
  margin-bottom: 4px;
}

.contact-card .contact-value {
  display: block;
  font-size: clamp(1.125rem, 1rem + 0.7vw, 1.5rem);
  font-weight: var(--weight-semibold);
  letter-spacing: -0.01em;
  line-height: 1.3;
  overflow-wrap: anywhere;
}

.contact-card .chev {
  margin-left: auto;
  color: var(--color-slate);
  transition: transform var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out);
}

.contact-card:hover .chev {
  transform: translateX(4px);
  color: var(--color-paper);
}

.contact-note {
  margin-top: var(--space-4);
  font-size: var(--text-body-sm);
  color: var(--color-ash);
}

/* Auf dunklem Grund braucht der Textlink das helle Signal-Orange (7,4:1) */
.contact-note a {
  color: var(--color-signal-orange);
}

.contact-note a:hover {
  color: var(--color-paper);
}

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

  .contact-card .contact-icon {
    display: none;
  }
}

/* --------------------------------------------------------------------------
   14. Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--surface-footer);
  color: var(--color-fog);
  padding-block: var(--space-6) var(--space-4);
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4) var(--space-8);
  align-items: flex-start;
  justify-content: space-between;
  padding-bottom: var(--space-5);
}

.footer-brand .brand {
  color: var(--color-paper);
}

.footer-brand .brand .brand-light {
  color: var(--color-fog);
}

.footer-claim {
  margin-top: var(--space-1);
  font-size: var(--text-body-sm);
  color: var(--color-ash);
}

.footer-nav ul {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-3);
}

.footer-nav a,
.footer-meta a {
  color: var(--color-fog);
  font-size: var(--text-body-sm);
  padding-block: 8px;
  display: inline-block;
}

.footer-nav a:hover,
.footer-meta a:hover {
  color: var(--color-paper);
}

.footer-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 4px var(--space-4);
  align-items: center;
  padding-top: var(--space-3);
  border-top: 1px solid #3a3c3e;
  font-size: var(--text-body-sm);
  color: var(--color-ash);
}

.footer-meta .footer-company {
  color: var(--color-fog);
  font-weight: var(--weight-medium);
}

.footer-legal {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 4px var(--space-3);
}

.footer-legal a[aria-current="page"] {
  color: var(--color-paper);
  font-weight: var(--weight-medium);
}

/* --------------------------------------------------------------------------
   14b. Rechtsseiten (Impressum, Datenschutz)
   -------------------------------------------------------------------------- */
.legal .section-head {
  margin-bottom: clamp(32px, 4vw, 48px);
}

.legal-content {
  max-width: 720px;
  overflow-wrap: break-word;
  hyphens: auto;
}

.legal-content h2 {
  margin-top: clamp(40px, 5vw, 64px);
  margin-bottom: var(--space-2);
  font-size: var(--text-heading-sm);
  font-weight: var(--weight-semibold);
  line-height: 1.33;
  letter-spacing: var(--tracking-heading);
  color: var(--color-onyx);
}

.legal-content h2:first-child {
  margin-top: 0;
}

.legal-content h3 {
  margin-top: var(--space-4);
  margin-bottom: var(--space-1);
  font-size: var(--text-subheading);
  font-weight: var(--weight-semibold);
  color: var(--color-iron);
}

.legal-content p {
  margin-bottom: var(--space-2);
  color: var(--color-graphite);
  max-width: 66ch;
}

.legal-content p strong {
  color: var(--color-iron);
  font-weight: var(--weight-semibold);
}

.legal-content address {
  font-style: normal;
  margin-bottom: var(--space-2);
  color: var(--color-iron);
  line-height: 1.6;
}

.legal-content a {
  overflow-wrap: anywhere;
}

.legal-list {
  list-style: none;
  margin-bottom: var(--space-2);
  display: grid;
  gap: 4px;
}

.legal-list li {
  display: flex;
  gap: 10px;
  align-items: baseline;
  color: var(--color-graphite);
}

.legal-list li::before {
  content: "";
  flex: none;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-ash);
  transform: translateY(-3px);
}

.legal-facts {
  display: grid;
  gap: 10px;
  margin-bottom: var(--space-2);
}

.legal-facts > div {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 8px;
}

.legal-facts dt {
  color: var(--color-slate);
  font-size: var(--text-body-sm);
  padding-top: 2px;
}

.legal-facts dd {
  color: var(--color-iron);
  overflow-wrap: anywhere;
}

.legal-stand {
  margin-top: var(--space-5);
  font-size: var(--text-body-sm);
  color: var(--color-slate);
}

.legal-backlink {
  margin-top: var(--space-5);
}

@media (max-width: 480px) {
  .legal-facts > div {
    grid-template-columns: 1fr;
    gap: 2px;
  }
}

/* --------------------------------------------------------------------------
   14c. Referenzen-Karussell
   -------------------------------------------------------------------------- */
.refs-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: clamp(32px, 4vw, 48px);
}

.refs-head .section-head {
  margin-bottom: 0;
}

.refs-nav {
  display: flex;
  gap: var(--space-1);
  flex: none;
  padding-bottom: 4px;
}

.refs-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--hairline-light);
  color: var(--color-iron);
  background: var(--color-paper);
  transition: border-color var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out),
    opacity var(--dur-fast) var(--ease-out);
}

.refs-btn:hover:not(:disabled) {
  border-color: var(--color-iron);
  color: var(--color-onyx);
}

.refs-btn:disabled {
  opacity: 0.35;
  cursor: default;
}

.refs-track {
  display: flex;
  gap: var(--space-2);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  padding-block: 4px;
}

.refs-track::-webkit-scrollbar {
  display: none;
}

@media (prefers-reduced-motion: no-preference) {
  .refs-track {
    scroll-behavior: smooth;
  }
}

.refs-track li {
  flex: 0 0 calc((100% - 4 * var(--space-2)) / 5);
  scroll-snap-align: start;
  min-width: 0;
}

.refs-track img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 1;
  filter: grayscale(1);
  opacity: 0.72;
  transition: filter var(--dur-med) var(--ease-out),
    opacity var(--dur-med) var(--ease-out);
}

.refs-track li:hover img,
.refs-track li:focus-within img {
  filter: none;
  opacity: 1;
}

@media (max-width: 1020px) {
  .refs-track li {
    flex-basis: calc((100% - 3 * var(--space-2)) / 4);
  }
}

@media (max-width: 760px) {
  .refs-track li {
    flex-basis: calc((100% - 2 * var(--space-2)) / 3);
  }
}

@media (max-width: 560px) {
  .refs-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .refs-track li {
    flex-basis: calc((100% - var(--space-2)) / 2);
  }
}

/* --------------------------------------------------------------------------
   15. Zurück nach oben
   -------------------------------------------------------------------------- */
.to-top {
  position: fixed;
  right: clamp(16px, 3vw, 32px);
  bottom: clamp(16px, 3vw, 32px);
  z-index: 90;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-paper);
  color: var(--color-iron);
  box-shadow: var(--shadow-float), inset 0 0 0 1px var(--hairline-light);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity var(--dur-med) var(--ease-out),
    visibility var(--dur-med) var(--ease-out),
    transform var(--dur-med) var(--ease-out);
}

.to-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.to-top:hover {
  color: var(--color-ember);
}

/* --------------------------------------------------------------------------
   16. Lightbox
   -------------------------------------------------------------------------- */
.lightbox {
  border: 0;
  padding: 0;
  width: min(100%, 1080px);
  max-width: calc(100% - 2 * var(--gutter));
  max-height: none;
  background: transparent;
  margin: auto;
  overflow: visible;
}

.lightbox::backdrop {
  background: rgba(0, 0, 0, 0.92);
}

.lightbox figure {
  background: var(--color-paper);
  border-radius: var(--radius-card);
  overflow: hidden;
}

.lightbox img {
  width: 100%;
  height: auto;
  max-height: min(72vh, 720px);
  object-fit: contain;
  background: var(--color-paper);
}

.lightbox figcaption {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-top: 1px solid var(--hairline-light);
}

.lightbox .lb-cat {
  font-size: var(--text-caption);
  font-weight: var(--weight-semibold);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-slate);
}

.lightbox .lb-title {
  font-size: var(--text-body);
  font-weight: var(--weight-semibold);
  color: var(--color-onyx);
}

.lb-btn {
  position: absolute;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.55);
  color: var(--color-paper);
  border: 1px solid rgba(255, 255, 255, 0.35);
  transition: background-color var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out);
}

.lb-btn:hover {
  background: rgba(0, 0, 0, 0.85);
  border-color: var(--color-paper);
}

.lb-close {
  top: -60px;
  right: 0;
}

.lb-prev,
.lb-next {
  top: calc(50% - 24px);
}

.lb-prev {
  left: -64px;
}

.lb-next {
  right: -64px;
}

@media (max-width: 1240px) {
  .lb-prev {
    left: 8px;
  }

  .lb-next {
    right: 8px;
  }
}

/* --------------------------------------------------------------------------
   16b. Progressive Enhancement: Verhalten ohne JavaScript
   Interaktive Bedienelemente, die JS voraussetzen, werden ohne JS nicht
   angeboten; die Navigation bleibt als statische Liste erreichbar.
   -------------------------------------------------------------------------- */
html.no-js .swatches,
html.no-js .folio-bar,
html.no-js .folio-count,
html.no-js .zoom-hint,
html.no-js .nav-toggle,
html.no-js .refs-nav,
html.no-js .to-top {
  display: none;
}

html.no-js .folio-card {
  cursor: default;
}

@media (max-width: 1120px) {
  html.no-js .main-nav {
    display: block;
    position: static;
    padding: 0;
    overflow: visible;
  }

  html.no-js .head-inner {
    height: auto;
    flex-wrap: wrap;
    padding-block: 12px;
    gap: 4px 24px;
  }

  html.no-js .main-nav ul {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0 20px;
  }

  html.no-js .main-nav li {
    border-bottom: 0;
  }

  html.no-js .main-nav a {
    width: auto;
    padding: 8px 0;
    font-size: var(--text-body-sm);
  }

  html.no-js .nav-contact {
    display: none;
  }
}

/* --------------------------------------------------------------------------
   17. Scroll-Reveal & Bewegung
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: no-preference) {
  html.js .reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity var(--dur-reveal) var(--ease-out),
      transform var(--dur-reveal) var(--ease-out);
    transition-delay: var(--reveal-delay, 0ms);
  }

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

  .hero-intro > * {
    animation: heroRise 700ms var(--ease-out) backwards;
  }

  .hero-intro > *:nth-child(2) { animation-delay: 80ms; }
  .hero-intro > *:nth-child(3) { animation-delay: 160ms; }
  .hero-intro > *:nth-child(4) { animation-delay: 240ms; }

  .stage {
    animation: heroRise 800ms var(--ease-out) 200ms backwards;
  }

  @keyframes heroRise {
    from {
      opacity: 0;
      transform: translateY(16px);
    }
    to {
      opacity: 1;
      transform: none;
    }
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}