/* ==============================================
   SCHRIFT — Avenir Next (lokal, OpenType CFF Pro)
   ============================================== */

@font-face {
  font-family: 'Avenir Next';
  font-style: normal;
  font-weight: 300;
  font-display: swap;
  src: url('Font%20Avenir%20Next%20OpenType%20CFF%20Pro/AvenirNextLTPro-Light.otf') format('opentype');
}

@font-face {
  font-family: 'Avenir Next';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('Font%20Avenir%20Next%20OpenType%20CFF%20Pro/AvenirNextLTPro-Regular.otf') format('opentype');
}

@font-face {
  font-family: 'Avenir Next';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('Font%20Avenir%20Next%20OpenType%20CFF%20Pro/AvenirNextLTPro-Medium.otf') format('opentype');
}

@font-face {
  font-family: 'Avenir Next';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('Font%20Avenir%20Next%20OpenType%20CFF%20Pro/AvenirNextLTPro-Demi.otf') format('opentype');
}

@font-face {
  font-family: 'Avenir Next';
  font-style: normal;
  font-weight: 800;
  font-display: swap;
  src: url('Font%20Avenir%20Next%20OpenType%20CFF%20Pro/AvenirNextLTPro-Bold.otf') format('opentype');
}

@font-face {
  font-family: 'Avenir Next';
  font-style: normal;
  font-weight: 900;
  font-display: swap;
  src: url('Font%20Avenir%20Next%20OpenType%20CFF%20Pro/AvenirNextLTPro-Heavy.otf') format('opentype');
}


/* ==============================================
   DESIGN TOKENS
   Abgeleitet von josberchtold.ch Markenwelt
   ============================================== */

:root {
  /* Farben */
  --color-black: #000000;
  --color-dark: #000000;
  --color-label: #757575;
  --color-charcoal: #2d2d2d;
  --color-gray-700: #404040;
  --color-gray-600: #555555;
  --color-gray-500: #777777;
  --color-gray-400: #999999;
  --color-gray-300: #c4c4c4;
  --color-gray-200: #e0e0e0;
  --color-gray-100: #eeeeee;
  --color-offwhite: #f7f6f3;
  --color-warm-white: #faf9f7;
  --color-white: #ffffff;
  --color-accent: #8a7d6b;
  --color-accent-light: #b5a998;
  --color-brand-yellow: #ffe600;

  /* Layout — josberchtold.ch */
  --rail-width: 4.5rem;
  --rail-gap: 1.5rem;
  --logo-clearance: 35px;
  --logo-width: 480px;
  --logo-height: 80px;
  --header-height: calc(var(--logo-height) + 2 * var(--logo-clearance));

  /* Typografie */
  --font-primary: 'Avenir Next', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-weight-light: 300;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 700;
  --font-weight-bold: 800;
  --font-weight-black: 900;
  --color-title: var(--color-black);
  --text-label-gap: 0.75rem;
  --text-title-gap: 1.75rem;
  --text-title-size: clamp(1.35rem, 3vw, 2.17rem);
  --text-content-width: 42rem;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 0.75rem;
  --space-lg: 1.25rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --section-gap: 2rem;

  /* Layout */
  --container-max: 1280px;
  --container-narrow: 960px;
  --container-padding: 2rem;

  /* Transitions */
  --ease-out: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-in-out: cubic-bezier(0.42, 0, 0.58, 1);
  --duration-fast: 200ms;
  --duration-normal: 400ms;
  --duration-slow: 600ms;
}


/* ==============================================
   RESET & BASE
   ============================================== */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  font-weight: var(--font-weight-regular);
  color: var(--color-black);
  background-color: var(--color-white);
  line-height: 1.6;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

::selection {
  background: var(--color-accent);
  color: var(--color-white);
}


/* ==============================================
   LAYOUT
   ============================================== */

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}


/* ==============================================
   LAYOUT — Header + rechte Sidebar (josberchtold.ch)
   ============================================== */

.site-main {
  margin-right: calc(var(--rail-width) + var(--rail-gap));
  min-width: 0;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  min-height: var(--header-height);
  background-color: var(--color-white);
  padding: var(--logo-clearance) var(--container-padding);
}

.site-header-logo {
  display: block;
  flex: 0 0 var(--logo-width);
  width: var(--logo-width);
  height: var(--logo-height);
  overflow: hidden;
}

.site-header-logo img {
  display: block;
  width: auto;
  height: var(--logo-height);
  max-width: none;
}

.site-rail {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 400;
  width: var(--rail-width);
  display: flex;
  flex-direction: column;
  align-items: stretch;
  background-color: var(--color-white);
  padding-bottom: 1.5rem;
}

.rail-item {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: var(--rail-width);
  color: var(--color-dark);
  border: none;
  background: none;
  padding: 0;
  font: inherit;
  cursor: pointer;
  text-decoration: none;
  transition: background-color var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out);
}

.rail-item--menu.is-active,
.rail-item--search.is-active {
  background-color: var(--color-gray-100);
}

.rail-item--menu:hover,
.rail-item--search:hover {
  background-color: var(--color-gray-100);
}

.rail-item--menu {
  padding-top: 0.5rem;
}

.rail-menu-icon {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 7px;
  width: 26px;
}

.rail-menu-icon span {
  display: block;
  height: 2px;
  background-color: currentColor;
  border-radius: 1px;
}

.rail-item--phone {
  margin-top: auto;
  position: relative;
  background-color: var(--color-brand-yellow);
}

.rail-item--phone::before {
  content: '';
  position: absolute;
  top: 0;
  right: 100%;
  bottom: 0;
  width: 0.5rem;
  background-color: var(--color-brand-yellow);
}

.rail-item--phone.is-active,
.rail-item--phone:hover {
  background-color: #e6cf00;
}


/* ==============================================
   SITE MENU + CONTACT PANELS
   ============================================== */

.site-menu,
.site-contact {
  position: fixed;
  inset: 0;
  z-index: 250;
  pointer-events: none;
}

.site-menu.is-open,
.site-contact.is-open {
  pointer-events: auto;
}

.site-menu-backdrop,
.site-contact-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
}

.site-menu.is-open .site-menu-backdrop,
.site-contact.is-open .site-contact-backdrop {
  opacity: 1;
}

.site-menu-panel {
  position: absolute;
  top: 0;
  right: var(--rail-width);
  bottom: 0;
  width: min(24rem, calc(100% - var(--rail-width) - var(--container-padding)));
  background: var(--color-white);
  border-left: 1px solid var(--color-gray-200);
  padding: var(--space-3xl) var(--container-padding);
  transform: translateX(100%);
  transition: transform var(--duration-normal) var(--ease-out);
}

.site-menu.is-open .site-menu-panel {
  transform: translateX(0);
}

.site-menu-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.site-menu-list a {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: var(--font-weight-semibold);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--color-black);
  transition: opacity var(--duration-fast) var(--ease-out);
}

.site-menu-list a:hover {
  opacity: 0.65;
}

.site-contact-panel {
  position: absolute;
  right: var(--rail-width);
  bottom: 0;
  width: min(22rem, calc(100% - var(--rail-width) - 1rem));
  background: var(--color-brand-yellow);
  color: var(--color-black);
  padding: 3rem 2rem 2rem;
  transform: translateX(100%);
  transition: transform var(--duration-normal) var(--ease-out);
}

.site-contact.is-open .site-contact-panel {
  transform: translateX(0);
}

.site-contact-icon {
  margin-bottom: var(--space-md);
}

.site-contact-title {
  font-size: 1.5rem;
  font-weight: var(--font-weight-semibold);
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

.site-contact-link {
  display: block;
  font-size: 1.125rem;
  font-weight: var(--font-weight-medium);
  line-height: 1.6;
  color: var(--color-black);
  margin-bottom: 0.25rem;
  transition: opacity var(--duration-fast) var(--ease-out);
}

.site-contact-link:hover {
  opacity: 0.65;
}

.site-contact-cta {
  display: inline-block;
  margin-top: var(--space-lg);
  padding: 0.875rem 1.5rem;
  border: 2px solid var(--color-black);
  font-size: 1rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-black);
  transition: background-color var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out);
}

.site-contact-cta:hover {
  background-color: var(--color-black);
  color: var(--color-white);
}

.site-panel-close {
  position: absolute;
  top: 1.25rem;
  right: 1.25rem;
  width: 2.5rem;
  height: 2.5rem;
  border: none;
  background: none;
  color: var(--color-black);
  font-size: 2.5rem;
  line-height: 1;
  cursor: pointer;
  padding: 0;
}

.site-panel-close--on-yellow {
  color: var(--color-black);
}


/* ==============================================
   SITE SEARCH — Landingpage
   ============================================== */

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

.site-search {
  position: fixed;
  inset: 0;
  z-index: 300;
  pointer-events: none;
}

.site-search.is-open {
  pointer-events: auto;
}

.site-search-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.35);
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out);
}

.site-search.is-open .site-search-backdrop {
  opacity: 1;
}

.site-search-panel {
  position: absolute;
  top: 0;
  right: var(--rail-width);
  bottom: 0;
  width: min(28rem, calc(100% - var(--rail-width) - var(--container-padding)));
  background: var(--color-white);
  border-left: 1px solid var(--color-gray-200);
  padding: var(--space-xl) var(--container-padding);
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  transform: translateX(100%);
  transition: transform var(--duration-normal) var(--ease-out);
  overflow: hidden;
}

.site-search.is-open .site-search-panel {
  transform: translateX(0);
}

.site-search-input {
  width: 100%;
  border: none;
  border-bottom: 2px solid var(--color-black);
  padding: 0.75rem 0;
  font-family: var(--font-primary);
  font-size: 1.5rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-black);
  background: transparent;
  outline: none;
}

.site-search-input::placeholder {
  color: var(--color-gray-400);
}

.site-search-results {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.site-search-empty {
  font-size: 1rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-gray-500);
  padding: var(--space-sm) 0;
}

.site-search-result {
  display: block;
  width: 100%;
  text-align: left;
  border: none;
  background: none;
  padding: 0.875rem 0;
  border-bottom: 1px solid var(--color-gray-100);
  cursor: pointer;
  font-family: inherit;
  transition: opacity var(--duration-fast) var(--ease-out);
}

.site-search-result:hover,
.site-search-result:focus-visible {
  opacity: 0.65;
  outline: none;
}

.site-search-result-title {
  display: block;
  font-size: 1.125rem;
  font-weight: var(--font-weight-semibold);
  color: var(--color-black);
  margin-bottom: 0.25rem;
}

.site-search-result-snippet {
  display: block;
  font-size: 0.9375rem;
  font-weight: var(--font-weight-medium);
  line-height: 1.5;
  color: var(--color-gray-600);
}

body.search-open,
body.panel-open {
  overflow: hidden;
}


/* ==============================================
   SECTION SHARED STYLES
   ============================================== */

/* Textblöcke — Label / Titel / Fliesstext wie josberchtold.ch */
.section-label {
  display: block;
  font-size: 1rem;
  font-weight: var(--font-weight-bold);
  letter-spacing: 0;
  text-transform: none;
  color: #7f7f7f;
  margin-bottom: var(--text-label-gap);
}

.section-title {
  font-size: var(--text-title-size);
  font-weight: var(--font-weight-bold);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--color-title);
  margin-bottom: var(--text-title-gap);
}

.section-text {
  font-size: 1.125rem;
  font-weight: var(--font-weight-medium);
  line-height: 1.6;
  color: var(--color-black);
  max-width: var(--text-content-width);
}

.section-intro {
  margin-bottom: var(--space-xl);
  max-width: var(--text-content-width);
}

.section-intro--centered {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.section-intro--centered .section-text {
  margin-left: auto;
  margin-right: auto;
}


/* ==============================================
   SECTION 1: PROJECT HERO
   ============================================== */

.project-hero {
  position: relative;
  min-height: calc(100dvh - var(--header-height));
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-image,
.hero-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-4xl) var(--container-padding) var(--space-3xl);
  width: 100%;
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: var(--space-lg);
}

.hero-tag {
  font-size: 0.75rem;
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-white);
}

.hero-divider {
  width: 32px;
  height: 1px;
  background: rgba(255, 255, 255, 0.3);
}

.hero-category {
  font-size: 0.75rem;
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.05em;
  color: var(--color-white);
}

.hero-title {
  font-size: clamp(3.5rem, 10vw, 8rem);
  font-weight: var(--font-weight-light);
  line-height: 0.95;
  letter-spacing: -0.04em;
  color: var(--color-white);
  text-shadow: 0 3px 22px rgba(0, 0, 0, 0.55);
  margin-bottom: var(--space-md);
}

.hero-title-dot {
  color: var(--color-white);
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-weight: var(--font-weight-regular);
  color: var(--color-white);
  letter-spacing: 0.02em;
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.5);
  margin-bottom: var(--space-md);
}

.hero-lead {
  font-size: clamp(1.0625rem, 1.5vw, 1.1875rem);
  font-weight: var(--font-weight-light);
  line-height: 1.7;
  color: var(--color-white);
  text-shadow: 0 2px 18px rgba(0, 0, 0, 0.55);
  max-width: 560px;
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: var(--container-padding);
  z-index: 2;
}

.scroll-line {
  display: block;
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.5), rgba(255,255,255,0));
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.6); transform-origin: top; }
  50% { opacity: 1; transform: scaleY(1); }
}


/* ==============================================
   SECTION 2: VIDEO SECTION
   ============================================== */

.video-section {
  padding: var(--section-gap) 0;
  background: var(--color-white);
}

.video-section .section-intro,
.video-section .section-text {
  max-width: none;
}

.video-layout {
  display: grid;
  grid-template-columns: minmax(0, var(--text-content-width)) minmax(18rem, 1fr);
  gap: var(--space-3xl);
  align-items: stretch;
}

.video-wrapper {
  max-width: var(--text-content-width);
  margin: 0;
}

.video-container {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  background: var(--color-black);
  overflow: hidden;
}

.video-container iframe,
.video-placeholder {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.video-container video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.video-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
}

.video-poster {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.6;
  transition: opacity var(--duration-slow) var(--ease-out);
}

.video-placeholder:hover .video-poster {
  opacity: 0.4;
}

.video-placeholder-inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
}

.play-button {
  width: 80px;
  height: 80px;
  color: var(--color-white);
  transition: transform var(--duration-normal) var(--ease-out),
              opacity var(--duration-fast);
}

.play-button:hover {
  transform: scale(1.08);
}

.play-button svg {
  width: 100%;
  height: 100%;
}

.video-placeholder-label {
  font-size: 0.8125rem;
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.6);
}


/* ==============================================
   PROJECT SERVICES
   ============================================== */

.services-section {
  padding: var(--section-gap) 0;
  background: var(--color-white);
}

.services-panel {
  color: var(--color-black);
}

.services-panel .section-label {
  color: #7f7f7f;
}

.services-list {
  margin-top: var(--space-lg);
  list-style: none;
  padding: 0;
}

.services-list li {
  padding: var(--space-md) 0;
  border-bottom: 2px solid var(--color-black);
  font-family: var(--font-primary);
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  font-weight: var(--font-weight-bold);
  line-height: 1.3;
  color: var(--color-black);
}

.services-list li:first-child {
  padding-top: 0;
}


/* ==============================================
   SECTION 3: PROJECT DESCRIPTION
   ============================================== */

.project-description {
  padding: var(--section-gap) 0;
  background: var(--color-white);
}

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

.description-block {
  max-width: 520px;
}

.description-label {
  font-size: 1rem;
  font-weight: var(--font-weight-bold);
  text-transform: none;
  letter-spacing: 0;
  color: var(--color-title);
  margin-bottom: var(--text-label-gap);
}

.description-text {
  font-size: 1.125rem;
  font-weight: var(--font-weight-medium);
  line-height: 1.6;
  color: var(--color-black);
}

.description-text + .description-text {
  margin-top: var(--space-sm);
}


/* ==============================================
   SECTION 4: FACTS GRID
   ============================================== */

/* ==============================================
   DRAWING SECTION — Längsschnitt
   ============================================== */

.drawing-section {
  padding: var(--section-gap) 0;
  background: var(--color-white);
}

.drawing-wrapper {
  margin-top: var(--space-lg);
  width: 100%;
}

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


.facts-panel {
  display: flex;
  flex-direction: column;
  color: var(--color-black);
}

.facts-panel-intro {
  margin-bottom: var(--space-md);
}

.facts-panel .section-label {
  color: #7f7f7f;
}

.facts-panel .section-title {
  color: var(--color-black);
  font-weight: var(--font-weight-bold);
}

.facts-table {
  /* Füllt die restliche Panelhöhe, damit die Tabelle mit der
     Unterkante des Films abschliesst */
  flex: 1 1 auto;
  display: flex;
  flex-direction: column;
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
  line-height: 1.5;
}

.facts-table tbody {
  flex: 1;
  display: flex;
  flex-direction: column;
}

/* Alle Zeilen gleichmässig über die verfügbare Höhe verteilen */
.facts-table tr {
  flex: 1 1 0;
  display: flex;
}

.facts-table th,
.facts-table td {
  padding: 0.5rem 0;
  border-bottom: 1px solid rgba(0, 0, 0, 0.14);
  text-align: left;
}

.facts-table th {
  flex: 0 0 42%;
  padding-right: var(--space-md);
  font-weight: var(--font-weight-bold);
  color: #7f7f7f;
}

.facts-table td {
  flex: 1;
  font-weight: var(--font-weight-regular);
  color: var(--color-black);
}


/* ==============================================
   SECTION 5: TECHNICAL HIGHLIGHT
   ============================================== */

.technical-section {
  padding: var(--section-gap) 0;
  background: var(--color-white);
}

.technical-layout {
  display: grid;
  /* Bildspalte schmaler als Textspalte; beide Spalten gleich hoch */
  grid-template-columns: minmax(0, 2fr) minmax(0, 3fr);
  gap: var(--space-3xl);
  align-items: stretch;
}

.technical-image-wrapper {
  position: relative;
  overflow: hidden;
  height: 100%;
}

.technical-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

.technical-image-wrapper:hover .technical-image {
  transform: scale(1.03);
}

.technical-content-col {
  padding: var(--space-lg) 0;
}

.technical-text {
  font-size: 1.125rem;
  font-weight: var(--font-weight-medium);
  line-height: 1.6;
  color: var(--color-black);
  margin-bottom: var(--space-xl);
  max-width: var(--text-content-width);
}

.technical-details-title {
  font-size: 1rem;
  font-weight: var(--font-weight-bold);
  color: #7f7f7f;
  margin-bottom: var(--space-sm);
}

.technical-features {
  display: flex;
  flex-direction: column;
}

.feature-item {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  padding: var(--space-md) 0;
  border-top: 1px solid var(--color-gray-100);
}

.feature-item:last-child {
  border-bottom: 1px solid var(--color-gray-100);
}

.feature-title {
  font-size: 1rem;
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0;
  color: var(--color-black);
}

.feature-desc {
  font-size: 1.125rem;
  font-weight: var(--font-weight-medium);
  line-height: 1.6;
  color: var(--color-black);
}

/* Gleicher Stil wie .pre-footer-link («Kontaktieren Sie uns») */
.technical-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: var(--space-lg);
  padding: 0.875rem 2.5rem;
  border: 1px solid var(--color-dark);
  background: transparent;
  font-size: 0.8125rem;
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-dark);
  transition: background var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out);
}

.technical-cta:hover {
  background: var(--color-dark);
  color: var(--color-white);
}


/* ==============================================
   SECTION 6: IMAGE GALLERY
   ============================================== */

.gallery-section {
  padding: var(--section-gap) 0;
  background: var(--color-white);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  grid-template-rows: auto auto;
  gap: var(--space-sm);
}

.gallery-item {
  grid-column: span 2;
  overflow: hidden;
  position: relative;
}

.gallery-item--focus {
  grid-column: span 3;
}

.gallery-item--large {
  grid-column: 1 / 3;
  grid-row: 1 / 3;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4 / 3;
  transition: transform var(--duration-slow) var(--ease-out);
}

.gallery-item--large img {
  aspect-ratio: auto;
  height: 100%;
}

.gallery-item:hover img {
  transform: scale(1.04);
}

.gallery-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-lg) var(--space-md) var(--space-md);
  background: linear-gradient(to top, rgba(17,17,17,0.7), transparent);
  color: var(--color-white);
  font-size: 0.8125rem;
  font-weight: var(--font-weight-medium);
  letter-spacing: 0.02em;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--duration-normal) var(--ease-out),
              transform var(--duration-normal) var(--ease-out);
}

.gallery-item:hover .gallery-caption {
  opacity: 1;
  transform: translateY(0);
}

.gallery-link-section {
  margin-top: calc(var(--section-gap) * 2);
}

.gallery-link-title {
  font-size: var(--text-title-size);
  font-weight: var(--font-weight-bold);
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: var(--color-black);
  margin-bottom: var(--space-lg);
}

.gallery-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.gallery-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 4rem;
  padding: 1rem 2rem;
  background: #4f4949;
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  font-weight: var(--font-weight-bold);
  color: var(--color-white);
  transition: background-color var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out);
}

.gallery-links a:hover {
  background: var(--color-black);
  color: var(--color-white);
}


/* ==============================================
   SECTION 7: RELATED CONTENT
   ============================================== */

.related-section {
  padding: var(--section-gap) 0;
  background: var(--color-white);
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
  margin-bottom: var(--space-xl);
}

.related-card {
  display: block;
  transition: transform var(--duration-normal) var(--ease-out);
}

.related-card:hover {
  transform: translateY(-4px);
}

.related-card-image {
  overflow: hidden;
  margin-bottom: var(--space-md);
  aspect-ratio: 3 / 2;
}

.related-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

.related-card:hover .related-card-image img {
  transform: scale(1.05);
}

.related-card-type {
  font-size: 1rem;
  font-weight: var(--font-weight-semibold);
  text-transform: none;
  letter-spacing: 0;
  color: var(--color-black);
  margin-bottom: var(--text-label-gap);
  display: block;
}

.related-card-title {
  font-size: clamp(1rem, 1.67vw, 1.33rem);
  font-weight: var(--font-weight-semibold);
  letter-spacing: -0.02em;
  line-height: 1.12;
  color: var(--color-black);
  margin-bottom: 0.375rem;
}

.related-card-arch {
  font-size: 1.125rem;
  font-weight: var(--font-weight-medium);
  line-height: 1.6;
  color: var(--color-black);
}

.related-cta {
  text-align: center;
  padding-top: var(--space-lg);
}

.cta-link {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9375rem;
  font-weight: var(--font-weight-medium);
  color: var(--color-dark);
  letter-spacing: 0.02em;
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--color-gray-300);
  transition: border-color var(--duration-fast) var(--ease-out),
              gap var(--duration-normal) var(--ease-out);
}

.cta-link:hover {
  border-color: var(--color-dark);
  gap: 1.25rem;
}

.cta-arrow {
  width: 20px;
  height: 20px;
}


/* ==============================================
   PRE-FOOTER CTA — «Und Ihr Projekt?»
   ============================================== */

.pre-footer-cta {
  padding: var(--section-gap) 0;
  background: var(--color-white);
  text-align: left;
}

.pre-footer-title {
  font-size: var(--text-title-size);
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.02em;
  line-height: 1.12;
  color: var(--color-black);
  margin-bottom: var(--space-lg);
}

.pre-footer-text {
  max-width: var(--text-content-width);
  margin: 0 0 var(--space-lg);
  font-size: 1.125rem;
  font-weight: var(--font-weight-medium);
  line-height: 1.6;
  color: var(--color-black);
}

.pre-footer-link {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-dark);
  border: 1px solid var(--color-dark);
  padding: 0.875rem 2.5rem;
  transition: background var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out);
}

.pre-footer-link:hover {
  background: var(--color-dark);
  color: var(--color-white);
}

.project-tile-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
  margin-top: var(--space-xl);
}

.project-tile {
  position: relative;
  display: block;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  color: var(--color-white);
  text-align: left;
}

.project-tile::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.55), rgba(0, 0, 0, 0.05));
  z-index: 1;
}

.project-tile img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out);
}

.project-tile:hover img {
  transform: scale(1.04);
}

.project-tile-title {
  position: absolute;
  left: var(--space-lg);
  right: var(--space-lg);
  bottom: var(--space-lg);
  z-index: 2;
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  font-weight: var(--font-weight-bold);
  line-height: 1.15;
}


/* ==============================================
   WER WIR SIND — horizontale Bildstrecke (On-Style)
   ============================================== */

.who-section {
  padding: var(--section-gap) 0;
  background: var(--color-white);
}

.who-section .section-intro {
  margin-bottom: var(--space-lg);
}

.who-strip {
  display: flex;
  gap: var(--space-sm);
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
  padding: 0 var(--container-padding);
  scrollbar-width: none;
}

.who-strip::-webkit-scrollbar {
  display: none;
}

.who-card {
  position: relative;
  flex: 0 0 auto;
  width: min(20rem, 60vw);
  aspect-ratio: 3 / 4;
  overflow: hidden;
  scroll-snap-align: start;
  margin: 0;
}

.who-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.who-caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 2;
  padding: var(--space-2xl) var(--space-lg) var(--space-lg);
  background: linear-gradient(to top, rgba(0, 0, 0, 0.55), transparent);
  color: var(--color-white);
  font-size: clamp(1.125rem, 2vw, 1.5rem);
  font-weight: var(--font-weight-bold);
  line-height: 1.2;
}

.who-strip-wrapper {
  position: relative;
}

.who-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  border: none;
  background: none;
  color: var(--color-white);
  filter: drop-shadow(0 1px 4px rgba(0, 0, 0, 0.6));
  cursor: pointer;
  transition: opacity var(--duration-fast) var(--ease-out);
}

.who-arrow--prev {
  left: 1rem;
}

.who-arrow--next {
  right: 1rem;
}

.who-arrow:hover {
  opacity: 0.7;
}


/* ==============================================
   FOOTER — josberchtold.ch
   ============================================== */

.site-footer {
  padding: var(--space-3xl) 0;
  background: var(--color-brand-yellow);
  color: var(--color-black);
}

.footer-content {
  max-width: 36rem;
  margin-left: clamp(2rem, 12vw, 8rem);
}

.footer-contact-block {
  margin-bottom: var(--space-xl);
}

.footer-company {
  font-size: 1.125rem;
  font-weight: var(--font-weight-semibold);
  line-height: 1.5;
  margin-bottom: 0.25rem;
}

.footer-address {
  font-style: normal;
  font-size: 1.125rem;
  font-weight: var(--font-weight-medium);
  line-height: 1.5;
  margin-bottom: var(--space-md);
}

.footer-contact-links {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.footer-phone,
.footer-email {
  font-size: 1.125rem;
  font-weight: var(--font-weight-semibold);
  line-height: 1.5;
  color: var(--color-black);
  transition: opacity var(--duration-fast) var(--ease-out);
}

.footer-phone:hover,
.footer-email:hover {
  opacity: 0.65;
}

.footer-meta {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.footer-social {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-shrink: 0;
  /* Icons (2 × 24px + 1rem Lücke = 4rem) plus Meta-Gap nach links ausrücken,
     damit «Datenschutz» bündig mit den Firmeninfos beginnt */
  margin-left: calc(-4rem - var(--space-lg));
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-black);
  transition: opacity var(--duration-fast) var(--ease-out);
}

.footer-social a:hover {
  opacity: 0.65;
}

.footer-legal {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 2.5rem;
}

.footer-legal a {
  font-size: 1.125rem;
  font-weight: var(--font-weight-medium);
  line-height: 1.5;
  color: var(--color-black);
  transition: opacity var(--duration-fast) var(--ease-out);
}

.footer-legal a:hover {
  opacity: 0.65;
}


/* ==============================================
   SCROLL ANIMATIONS (Intersection Observer)
   ============================================== */

.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-delay-1 { transition-delay: 100ms; }
.fade-in-delay-2 { transition-delay: 200ms; }
.fade-in-delay-3 { transition-delay: 300ms; }
.fade-in-delay-4 { transition-delay: 400ms; }


/* ==============================================
   RESPONSIVE — TABLET
   ============================================== */

@media (max-width: 1024px) {
  :root {
    --container-padding: 1.5rem;
  }

  /* Hero zeigt das 16:9-Video vollständig (Text ist im Video) */
  .project-hero {
    min-height: auto;
    aspect-ratio: 16 / 9;
  }

  .video-layout {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .technical-layout {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .technical-image-wrapper {
    aspect-ratio: 16 / 9;
  }

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

  .gallery-item {
    grid-column: auto;
  }

  .gallery-item--focus {
    grid-column: span 1;
  }

  .gallery-item--large {
    grid-column: 1 / 3;
    grid-row: auto;
  }

  .gallery-item--large img {
    aspect-ratio: 16 / 9;
  }

}


/* ==============================================
   RESPONSIVE — MOBILE
   ============================================== */

@media (max-width: 680px) {
  :root {
    --container-padding: 1.25rem;
    --space-4xl: 3rem;
    --space-3xl: 2.5rem;
    --section-gap: 1.5rem;
    --rail-width: 3.5rem;
    --rail-gap: 0.75rem;
    --logo-clearance: 1rem;
    /* Logobreite 60vw (max 336px), Seitenverhältnis 6:1 */
    --header-height: calc(min(60vw, 336px) / 6 + 2 * var(--logo-clearance));
  }

  .site-header {
    padding: var(--logo-clearance) var(--container-padding);
  }

  /* Logo skaliert statt abgeschnitten */
  .site-header-logo {
    flex: 0 1 auto;
    width: auto;
    height: auto;
    overflow: visible;
  }

  .site-header-logo img {
    width: min(60vw, 336px);
    height: auto;
  }

  /* Hero zeigt das 16:9-Video vollständig statt stark beschnitten */
  .project-hero {
    min-height: auto;
    aspect-ratio: 16 / 9;
  }

  .site-search-panel {
    width: calc(100% - var(--rail-width));
    padding: var(--space-lg) var(--container-padding);
  }

  .site-search-input {
    font-size: 1.25rem;
  }

  .hero-content {
    padding-bottom: var(--space-xl);
  }

  .hero-title {
    font-size: clamp(3rem, 15vw, 5rem);
  }

  .hero-meta {
    margin-bottom: var(--space-md);
  }

  .hero-scroll-indicator {
    display: none;
  }

  .description-grid {
    grid-template-columns: 1fr;
    gap: var(--space-xl);
  }

  .gallery-grid {
    grid-template-columns: 1fr;
  }

  .gallery-item,
  .gallery-item--focus,
  .gallery-item--large {
    grid-column: auto;
    grid-row: auto;
  }

  .gallery-item--large img {
    aspect-ratio: 4 / 3;
  }

  /* Längsschnitt bleibt lesbar — horizontal wischbar */
  .drawing-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .drawing-img {
    min-width: 560px;
  }

  /* CTA-Buttons in voller Breite */
  .gallery-links {
    flex-direction: column;
    align-items: stretch;
  }

  .gallery-links a {
    width: 100%;
  }

  .technical-cta {
    width: 100%;
  }

  .gallery-link-title {
    font-size: clamp(1rem, 3.33vw, 1.33rem);
  }

  .related-grid {
    grid-template-columns: 1fr;
  }

  .project-tile-grid {
    gap: 0.5rem;
  }

  .project-tile-title {
    left: 0.625rem;
    right: 0.625rem;
    bottom: 0.625rem;
    font-size: 0.8125rem;
  }

  .who-card {
    width: auto;
    height: 290px;
  }

  .who-caption {
    font-size: 1rem;
    padding: var(--space-xl) var(--space-md) var(--space-md);
  }

  .who-arrow svg {
    width: 32px;
    height: 32px;
  }

  .who-arrow--prev {
    left: 0.5rem;
  }

  .who-arrow--next {
    right: 0.5rem;
  }

  .pre-footer-title {
    font-size: clamp(2rem, 10vw, 3rem);
  }

  .footer-content {
    margin-left: 0;
  }

  .footer-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
  }

  .footer-social {
    margin-left: 0;
  }

  .footer-legal {
    gap: 1.5rem;
  }

  .play-button {
    width: 60px;
    height: 60px;
  }

  .section-title {
    font-size: clamp(1rem, 3.33vw, 1.33rem);
  }
}


/* ==============================================
   REDUCED MOTION
   ============================================== */

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .fade-in {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .scroll-line {
    animation: none;
    opacity: 0.5;
  }

  .gallery-item:hover img,
  .related-card:hover .related-card-image img,
  .technical-image-wrapper:hover .technical-image {
    transform: none;
  }

  .related-card:hover {
    transform: none;
  }
}


/* ==============================================
   PRINT
   ============================================== */

@media print {
  .site-rail,
  .site-header,
  .hero-scroll-indicator,
  .video-section,
  .related-section {
    display: none;
  }

  .project-hero {
    min-height: auto;
    padding: 2rem 0;
    background: none;
  }

  .hero-background {
    display: none;
  }

  .hero-content {
    padding: 0;
  }

  .hero-title,
  .hero-subtitle,
  .hero-lead {
    color: var(--color-dark);
  }

  body {
    font-size: 12pt;
  }
}


/* ==============================================
   THEME DELTA — französische Seite
   (body.theme-delta: Blau #006BA6 statt Gelb,
   Text/Icons auf Blau in Weiss für Lesbarkeit)
   ============================================== */

body.theme-delta {
  --color-brand-yellow: #006BA6;
}

body.theme-delta .project-hero {
  display: block;
  min-height: 0;
  aspect-ratio: auto;
}

body.theme-delta .hero-background {
  position: relative;
  inset: auto;
}

body.theme-delta .hero-video {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
  object-position: center;
}

body.theme-delta .rail-item--phone {
  color: var(--color-white);
}

body.theme-delta .rail-item--phone.is-active,
body.theme-delta .rail-item--phone:hover {
  background-color: #005a8c;
}

body.theme-delta .site-contact-panel {
  color: var(--color-white);
}

body.theme-delta .site-contact-link {
  color: var(--color-white);
}

body.theme-delta .site-contact-cta {
  border-color: var(--color-white);
  color: var(--color-white);
}

body.theme-delta .site-contact-cta:hover {
  background-color: var(--color-white);
  color: #006BA6;
}

body.theme-delta .site-panel-close--on-yellow {
  color: var(--color-white);
}

/* Footer wie deltatueren.ch: schwarze Schrift auf Blau,
   zwei Adressspalten (Zürich + Lonay) */
body.theme-delta .site-footer {
  background: #006BA6;
}

body.theme-delta .footer-content {
  max-width: 48rem;
}

body.theme-delta .footer-columns {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xl);
}

body.theme-delta .footer-columns .footer-contact-block {
  flex: 1 1 16rem;
  margin-bottom: var(--space-xl);
}

/* Hero-Höhe folgt dem Seitenverhältnis der jeweiligen Videodatei. */
.project-hero {
  display: block;
  min-height: 0;
  aspect-ratio: auto;
}

.hero-background {
  position: relative;
  inset: auto;
}

.hero-video {
  display: block;
  width: 100%;
  height: auto;
  object-fit: contain;
  object-position: center;
}

/* Videodatei ist 1920 × 1080 mit einem 1920 × 820 grossen Bildinhalt:
   die eincodierten Balken (je 130 px) werden ausgeblendet, ohne das Video zu skalieren. */
.project-hero--letterbox {
  position: relative;
  aspect-ratio: 1920 / 820;
  overflow: hidden;
}

.project-hero--letterbox .hero-background {
  position: static;
  inset: auto;
}

.project-hero--letterbox .hero-video {
  position: absolute;
  top: 50%;
  left: 0;
  width: 100%;
  height: auto;
  object-fit: contain;
  transform: translateY(-50%);
}

.project-hero--letterbox .hero-overlay {
  position: absolute;
  inset: 0;
}

/* Buchungs-CTA im Hero — ohne Scrollen sichtbar */
.hero-cta {
  position: absolute;
  right: var(--container-padding);
  bottom: clamp(0.75rem, 2.5vw, 2.5rem);
  z-index: 3;
  display: inline-flex;
  align-items: center;
  padding: clamp(0.5rem, 1.2vw, 0.875rem) clamp(1rem, 2.2vw, 2.5rem);
  background: var(--color-brand-yellow);
  color: var(--color-black);
  font-size: clamp(0.6875rem, 1.15vw, 0.8125rem);
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  box-shadow: 0 0.75rem 2rem rgba(0, 0, 0, 0.3);
  transition: background var(--duration-fast) var(--ease-out),
              color var(--duration-fast) var(--ease-out);
}

.hero-cta:hover {
  background: var(--color-black);
  color: var(--color-brand-yellow);
}

body.theme-delta .hero-cta {
  background: #006BA6;
  color: var(--color-white);
}

body.theme-delta .hero-cta:hover {
  background: var(--color-white);
  color: #006BA6;
}

/* Automatisch eingeblendetes Kontaktfenster: sichtbar, aber ohne
   Abdunkelung und ohne die Seite zu blockieren. */
.site-contact.is-auto {
  pointer-events: none;
}

.site-contact.is-auto .site-contact-backdrop {
  opacity: 0;
}

.site-contact.is-auto .site-contact-panel {
  pointer-events: auto;
  box-shadow: 0 1rem 3rem rgba(0, 0, 0, 0.28);
}

@media (min-width: 681px) {
  body.theme-delta .site-footer {
    position: relative;
    min-height: 30rem;
    padding: 4rem 0 5rem;
  }

  body.theme-delta .footer-content {
    max-width: none;
    margin-left: clamp(8rem, 29.5%, 34rem);
    margin-right: 0;
    padding: 0;
  }

  body.theme-delta .footer-columns {
    display: grid;
    grid-template-columns: max-content max-content;
    column-gap: 4rem;
  }

  body.theme-delta .footer-columns .footer-contact-block {
    margin-bottom: 0;
  }

  body.theme-delta .footer-company,
  body.theme-delta .footer-address,
  body.theme-delta .footer-phone,
  body.theme-delta .footer-email,
  body.theme-delta .footer-legal a {
    font-size: 1.5rem;
    line-height: 1.5;
  }

  body.theme-delta .footer-company {
    margin-bottom: 0.25rem;
  }

  body.theme-delta .footer-address {
    margin-bottom: 3rem;
  }

  body.theme-delta .footer-meta {
    display: block;
    margin-top: 4rem;
  }

  body.theme-delta .footer-social {
    position: absolute;
    left: 1.5rem;
    bottom: 5rem;
    gap: 1.75rem;
    margin-left: 0;
  }

  body.theme-delta .footer-social svg {
    width: 3.375rem;
    height: 3.375rem;
  }

  body.theme-delta .footer-legal {
    gap: 4rem;
  }
}

@media (max-width: 680px) {
  body.theme-delta .footer-content {
    margin-left: 0;
  }

  body.theme-delta .footer-columns {
    display: block;
  }
}