/* === Fonts === */

@font-face {
  font-family: 'Inter Tight';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url('assets/fonts/inter-tight-v9-latin-regular.woff2') format('woff2');
}

@font-face {
  font-family: 'Inter Tight';
  font-style: italic;
  font-weight: 400;
  font-display: swap;
  src: url('assets/fonts/inter-tight-v9-latin-italic.woff2') format('woff2');
}

@font-face {
  font-family: 'Inter Tight';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url('assets/fonts/inter-tight-v9-latin-500.woff2') format('woff2');
}

@font-face {
  font-family: 'Inter Tight';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url('assets/fonts/inter-tight-v9-latin-700.woff2') format('woff2');
}

:root {
  --bg: #FAF8F5;
  --bg-soft: #F2EFE8;
  --text: #1A1A1A;
  --text-muted: #6B6B6B;
  --line: #E5E1DA;
  --accent: #C2932E;
  --accent-deep: #9A7320;

  --container: 1280px;
  --container-narrow: 760px;

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4rem;
  --space-7: 6rem;
  --space-8: 8rem;
  --space-9: 12rem;
}

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

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

body {
  font-family: 'Inter Tight', system-ui, -apple-system, sans-serif;
  font-weight: 400;
  font-size: 17px;
  line-height: 1.55;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a {
  color: var(--text);
  text-decoration: none;
  transition: color 0.25s ease;
}

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

img, video {
  max-width: 100%;
  display: block;
}

ul {
  list-style: none;
}

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

/* === Container === */

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-4);
}

.container-narrow {
  max-width: var(--container-narrow);
}

@media (max-width: 600px) {
  .container {
    padding: 0 var(--space-3);
  }
}

/* === Header === */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  padding: var(--space-3) 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.site-header.is-faded {
  opacity: 0;
  pointer-events: none;
}

.header-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  pointer-events: auto;
  gap: var(--space-3);
}

.logo {
  font-weight: 500;
  font-size: 15px;
  letter-spacing: 0.02em;
  text-transform: lowercase;
  justify-self: start;
}

.header-mark {
  width: 26px;
  height: 26px;
  justify-self: center;
}

.header-mark svg {
  width: 100%;
  height: 100%;
  display: block;
}

.header-mark-shape {
  fill: var(--accent);
  transform-origin: 50% 50%;
  animation: rotateMark 18s linear infinite;
}

@keyframes rotateMark {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.lang-toggle {
  font-size: 13px;
  display: flex;
  gap: 6px;
  align-items: center;
  text-transform: lowercase;
  letter-spacing: 0.04em;
  justify-self: end;
}

.lang-active {
  font-weight: 500;
}

.lang-sep {
  opacity: 0.4;
}

.lang-toggle a {
  opacity: 0.55;
  transition: opacity 0.2s ease;
}

.lang-toggle a:hover {
  opacity: 1;
}

/* === Hero === */

.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  position: relative;
  padding: clamp(120px, 30vh, 500px) 0 var(--space-5);
}

.hero-content {
  margin-top: 0;
  margin-bottom: auto;
}

.hero-headline {
  font-size: clamp(46px, 10vw, 124px);
  line-height: 0.9;
  letter-spacing: -0.045em;
  font-weight: 700;
  text-transform: lowercase;
  margin-bottom: var(--space-3);
}

.hero-line {
  display: block;
}

.hero-line .dot {
  color: var(--accent);
  display: inline-block;
}

.hero-divider {
  width: 0;
  height: 1px;
  background: var(--accent);
  margin: var(--space-3) 0 var(--space-3);
  animation: dividerGrow 1.4s cubic-bezier(0.2, 0.7, 0.2, 1) 0.55s forwards;
}

@keyframes dividerGrow {
  to { width: 180px; }
}

.hero-tags {
  font-size: clamp(20px, 2.6vw, 30px);
  font-style: italic;
  font-weight: 400;
  color: var(--text-muted);
  letter-spacing: -0.01em;
  text-transform: lowercase;
  margin-bottom: var(--space-2);
}

.hero-tags .dot {
  color: var(--accent);
  font-style: normal;
  font-weight: 500;
  margin: 0 0.4em;
}

.hero-meta {
  font-size: clamp(10px, 1.2vw, 12px);
  color: var(--text-muted);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-variant-numeric: tabular-nums;
}

/* === Hero Scroll-Pfeil unten === */

.hero-arrow {
  position: absolute;
  bottom: var(--space-4);
  left: 50%;
  transform: translateX(-50%);
  width: 24px;
  height: 24px;
  opacity: 0;
  animation: fadeInArrow 1s ease 1.4s forwards;
}

.hero-arrow.is-loaded {
  opacity: 1;
  animation: none;
  transition: opacity 0.4s ease-out;
}

.hero-arrow svg {
  width: 100%;
  height: 100%;
  display: block;
  animation: arrowPulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.hero-arrow svg path {
  stroke: var(--accent);
  stroke-width: 1.5;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

@keyframes fadeInArrow {
  to { opacity: 1; }
}

@keyframes arrowPulse {
  0%, 100% {
    transform: translateY(0);
    opacity: 0.7;
  }
  50% {
    transform: translateY(6px);
    opacity: 1;
  }
}

/* === Scrolling Index (rechter Anker) === */

.scroll-index {
  position: fixed;
  right: var(--space-3);
  top: 50%;
  transform: translateY(-50%);
  z-index: 40;
  display: flex;
  flex-direction: column;
  gap: 14px;
  opacity: 0;
  transition: opacity 0.5s ease;
  pointer-events: none;
}

.scroll-index.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.scroll-index a {
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 10px;
  transition: color 0.3s ease;
  font-variant-numeric: tabular-nums;
  flex-direction: row-reverse;
  background: rgba(250, 248, 245, 0.85);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  padding: 4px 8px;
  border-radius: 2px;
}

.scroll-index a::before {
  content: '';
  width: 14px;
  height: 1px;
  background: currentColor;
  opacity: 0.4;
  transition: width 0.3s ease, opacity 0.3s ease, background 0.3s ease;
  flex-shrink: 0;
}

.scroll-index a.is-active {
  color: var(--accent-deep);
}

.scroll-index a.is-active::before {
  width: 28px;
  opacity: 1;
  background: var(--accent);
}

.scroll-index a:hover {
  color: var(--accent-deep);
}

.scroll-index .label-text {
  white-space: nowrap;
}

@media (max-width: 1100px) {
  .scroll-index {
    display: none;
  }
}

/* === Section-Markers === */

.section-marker {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent-deep);
  font-weight: 500;
  margin-bottom: var(--space-3);
  font-variant-numeric: tabular-nums;
}

/* === About === */

.about {
  padding: var(--space-9) 0;
}

.about-text {
  font-size: clamp(22px, 3vw, 34px);
  line-height: 1.4;
  letter-spacing: -0.015em;
  font-weight: 400;
  color: var(--text);
  max-width: 880px;
}

.about-text .accent-mark {
  color: var(--accent-deep);
  font-weight: 500;
}

/* === Cases === */

.case {
  padding: var(--space-9) 0;
  position: relative;
}

.case + .case {
  border-top: 1px solid var(--line);
}

.case-meta {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto;
  gap: 0 var(--space-3);
  align-items: baseline;
  margin-bottom: var(--space-6);
}

.case-number {
  font-size: 11px;
  color: var(--accent-deep);
  font-variant-numeric: tabular-nums;
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  align-self: start;
  padding-top: 14px;
  grid-row: 1 / 3;
}

.case-client {
  font-size: clamp(40px, 7vw, 88px);
  line-height: 0.95;
  letter-spacing: -0.04em;
  font-weight: 500;
  color: var(--text);
  text-transform: lowercase;
}

.case-type {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: var(--space-2);
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.case-video {
  margin-bottom: var(--space-6);
}

.video-placeholder {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  overflow: hidden;
  transition: border-color 0.3s ease;
}

.video-placeholder .bg-layer {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  filter: grayscale(1) contrast(0.95) brightness(0.92);
  transition: filter 0.4s ease;
  pointer-events: none;
  z-index: 0;
}

.video-placeholder:hover .bg-layer {
  filter: grayscale(0.6) contrast(1) brightness(0.95);
}

.video-placeholder::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--accent);
  mix-blend-mode: multiply;
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
  z-index: 1;
}

.video-placeholder.has-image:hover::after {
  opacity: 0.18;
}

.video-placeholder:hover {
  border-color: var(--accent);
}

.video-placeholder.vertical {
  aspect-ratio: 9 / 16;
}

.play-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(194, 147, 46, 0.08);
  border: 1px solid var(--accent);
  position: relative;
  z-index: 2;
  transition: background 0.3s ease, transform 0.4s cubic-bezier(0.2, 0.9, 0.3, 1.2);
  flex-shrink: 0;
}

.play-icon::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 54%;
  transform: translate(-50%, -50%);
  width: 0;
  height: 0;
  border-left: 17px solid var(--accent-deep);
  border-top: 11px solid transparent;
  border-bottom: 11px solid transparent;
  transition: border-left-color 0.3s ease;
}

.video-placeholder:hover .play-icon {
  background: var(--accent);
  transform: scale(1.08);
}

.video-placeholder:hover .play-icon::before {
  border-left-color: var(--bg);
}

.placeholder-label {
  position: absolute;
  bottom: 14px;
  left: 14px;
  font-size: 10px;
  color: var(--text-muted);
  font-family: ui-monospace, monospace;
  letter-spacing: 0.04em;
  background: rgba(250, 248, 245, 0.92);
  padding: 5px 9px;
  border-radius: 2px;
  text-transform: uppercase;
  z-index: 2;
}

.video-placeholder.has-image .placeholder-label {
  display: none;
}

.video-placeholder.has-image .play-icon {
  background: rgba(250, 248, 245, 0.15);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  border-color: rgba(250, 248, 245, 0.6);
}

.video-placeholder.has-image .play-icon::before {
  border-left-color: var(--bg);
}

.video-placeholder.has-image:hover .play-icon {
  background: var(--accent);
  border-color: var(--accent);
}

.case-content {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: var(--space-5);
  align-items: start;
  margin-bottom: var(--space-5);
}

.case-description p {
  font-size: 19px;
  line-height: 1.55;
  color: var(--text);
  max-width: 560px;
}

.case-result {
  border-left: 1px solid var(--line);
  padding-left: var(--space-3);
}

.result-label {
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--accent-deep);
  margin-bottom: var(--space-2);
}

.result-list li {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.case-socials {
  margin-top: var(--space-4);
}

.socials-label {
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: var(--space-3);
}

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

/* === Services === */

.services {
  padding: var(--space-9) 0;
  border-top: 1px solid var(--line);
}

.section-heading {
  font-size: 12px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--accent-deep);
  margin-bottom: var(--space-6);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-6) var(--space-5);
}

.service-item {
  padding-top: var(--space-3);
  border-top: 1px solid var(--text);
  position: relative;
}

.service-item::before {
  content: attr(data-num);
  position: absolute;
  top: var(--space-3);
  right: 0;
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.12em;
  font-variant-numeric: tabular-nums;
}

.service-title {
  font-size: clamp(28px, 3.5vw, 40px);
  line-height: 1.05;
  letter-spacing: -0.025em;
  font-weight: 500;
  margin-bottom: var(--space-2);
  text-transform: lowercase;
}

.service-item p {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.55;
  max-width: 380px;
}

/* === FAQ === */

.faq {
  padding: var(--space-9) 0;
  border-top: 1px solid var(--line);
}

.faq-list {
  display: flex;
  flex-direction: column;
  margin-top: var(--space-5);
}

.faq-item {
  border-bottom: 1px solid var(--line);
}

.faq-item:first-child {
  border-top: 1px solid var(--line);
}

.faq-item summary {
  font-size: 22px;
  font-weight: 500;
  letter-spacing: -0.015em;
  padding: var(--space-3) 0;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: color 0.2s ease;
  position: relative;
  padding-right: 36px;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::before {
  content: '';
  position: absolute;
  right: 6px;
  top: 50%;
  margin-top: -1px;
  width: 18px;
  height: 1.5px;
  background: var(--accent-deep);
}

.faq-item summary::after {
  content: '';
  position: absolute;
  right: 14px;
  top: 50%;
  margin-top: -9px;
  width: 1.5px;
  height: 18px;
  background: var(--accent-deep);
  transition: transform 0.3s ease;
}

.faq-item[open] summary::after {
  transform: scaleY(0);
}

.faq-item summary:hover {
  color: var(--accent-deep);
}

.faq-answer {
  padding: 0 0 var(--space-3);
  max-width: 600px;
}

.faq-answer p {
  color: var(--text-muted);
  line-height: 1.65;
  font-size: 16px;
}

/* === Contact === */

.contact {
  padding: var(--space-9) 0 var(--space-7);
  border-top: 1px solid var(--line);
}

.contact-headline {
  font-size: clamp(48px, 9vw, 108px);
  line-height: 0.92;
  letter-spacing: -0.04em;
  font-weight: 700;
  margin-bottom: var(--space-5);
  text-transform: lowercase;
}

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

.contact-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-5);
  margin-top: var(--space-4);
}

.contact-list a {
  font-size: 19px;
  font-weight: 500;
  position: relative;
  padding: 4px 0;
  border-bottom: 1px solid var(--line);
  transition: border-color 0.3s ease, color 0.3s ease;
}

.contact-list a:hover {
  border-color: var(--accent);
  color: var(--accent-deep);
}

/* === Footer === */

.site-footer {
  padding: var(--space-3) 0;
  border-top: 1px solid var(--line);
}

.footer-text {
  font-size: 12px;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.footer-text a {
  color: var(--text-muted);
}

.footer-text a:hover {
  color: var(--accent-deep);
}

/* === Lightbox === */

.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(26, 26, 26, 0.94);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3);
  animation: fadeIn 0.25s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.lightbox[hidden] {
  display: none;
}

.lightbox-content {
  width: 100%;
  max-width: 1200px;
  max-height: 90vh;
  animation: scaleIn 0.3s cubic-bezier(0.2, 0.8, 0.3, 1);
}

@keyframes scaleIn {
  from { opacity: 0; transform: scale(0.96); }
  to { opacity: 1; transform: scale(1); }
}

.lightbox-content video {
  width: 100%;
  max-height: 90vh;
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 24px;
  font-size: 36px;
  color: var(--bg);
  line-height: 1;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background 0.2s ease;
}

.lightbox-close:hover {
  background: rgba(250, 248, 245, 0.15);
}

/* === Modal === */

.modal {
  position: fixed;
  inset: 0;
  background: rgba(26, 26, 26, 0.65);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-3);
  animation: fadeIn 0.25s ease;
}

.modal[hidden] {
  display: none;
}

.modal-content {
  background: var(--bg);
  max-width: 720px;
  width: 100%;
  max-height: 85vh;
  overflow-y: auto;
  padding: var(--space-6) var(--space-5);
  border-radius: 4px;
  animation: scaleIn 0.3s cubic-bezier(0.2, 0.8, 0.3, 1);
}

.modal-content h2 {
  font-size: 22px;
  font-weight: 500;
  margin-bottom: var(--space-2);
  letter-spacing: -0.015em;
}

.modal-content h2:not(:first-child) {
  margin-top: var(--space-4);
}

.modal-content h3 {
  font-size: 14px;
  font-weight: 500;
  margin-top: var(--space-3);
  margin-bottom: var(--space-1);
  color: var(--text);
}

.modal-content p {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: var(--space-2);
  line-height: 1.65;
}

.modal-content a {
  color: var(--accent-deep);
  text-decoration: underline;
}

.modal-note {
  font-size: 12px !important;
  font-style: italic;
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 24px;
  font-size: 32px;
  color: var(--bg);
  line-height: 1;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: background 0.2s ease;
}

.modal-close:hover {
  background: rgba(250, 248, 245, 0.15);
}

/* === Selection === */

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

/* === Reveal Animations === */

.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s cubic-bezier(0.2, 0.7, 0.2, 1), transform 0.9s cubic-bezier(0.2, 0.7, 0.2, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.hero-line,
.hero-tags,
.hero-meta {
  opacity: 0;
  animation: heroReveal 0.9s cubic-bezier(0.2, 0.7, 0.2, 1) forwards;
}

.hero-line:nth-child(1) { animation-delay: 0.15s; }
.hero-line:nth-child(2) { animation-delay: 0.3s; }
.hero-tags { animation-delay: 0.55s; }
.hero-meta { animation-delay: 0.75s; }

@keyframes heroReveal {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

  .reveal {
    opacity: 1;
    transform: none;
  }

  .hero-line,
  .hero-tags,
  .hero-meta,
  .hero-arrow {
    opacity: 1;
  }

  .hero-divider {
    width: 180px;
  }
}

/* === Mobile === */

@media (max-width: 900px) {
  .case-content {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }

  .case-result {
    border-left: none;
    border-top: 1px solid var(--line);
    padding-left: 0;
    padding-top: var(--space-3);
  }

  .services-grid {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }

  .socials-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
  }
}

@media (max-width: 600px) {
  body {
    font-size: 16px;
  }

  :root {
    --space-9: 7rem;
  }

  .hero {
    padding: 150px 0 var(--space-4);
    min-height: 100vh;
  }

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

  .hero-divider {
    margin: var(--space-2) 0 var(--space-2);
  }

  @keyframes dividerGrow {
    to { width: 110px; }
  }

  .hero-tags {
    margin-bottom: var(--space-1);
  }

  .case-meta {
    grid-template-columns: 1fr;
    gap: var(--space-1);
    margin-bottom: var(--space-4);
  }

  .case-number {
    grid-row: auto;
    padding-top: 0;
  }

  .case-video {
    margin-bottom: var(--space-3);
  }

  .case-content {
    margin-bottom: var(--space-4);
  }

  .play-icon {
    width: 56px;
    height: 56px;
  }

  .play-icon::before {
    border-left-width: 14px;
    border-top-width: 9px;
    border-bottom-width: 9px;
  }

  .placeholder-label {
    font-size: 9px;
    bottom: 10px;
    left: 10px;
  }

  .services .section-heading,
  .faq .section-heading {
    margin-bottom: var(--space-3);
  }

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

  .faq-list {
    margin-top: var(--space-3);
  }

  .faq-item summary {
    font-size: 18px;
  }

  .contact-list {
    flex-direction: column;
    gap: var(--space-2);
  }

  .contact-list a {
    font-size: 17px;
  }
}