/* Lorenz Eckl — Industrial Design Portfolio
   Shared stylesheet for landing page + project pages */

@font-face {
  font-family: 'Helvetica Neue';
  src: url('../fonts/HelveticaNeueBold.otf') format('opentype');
  font-weight: 700;
  font-style: normal;
}
@font-face {
  font-family: 'Helvetica Neue';
  src: url('../fonts/HelveticaNeueMediumItalic.otf') format('opentype');
  font-weight: 500;
  font-style: italic;
}

:root {
  color-scheme: light;
}

* { box-sizing: border-box; }

html, body { margin: 0; background: #fff; }
html { scroll-behavior: smooth; scroll-padding-top: 120px; }

body {
  font-family: "Helvetica Neue", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  letter-spacing: -0.04em;
  color: #000;
}

a { color: #000; text-decoration: none; }
a:hover { color: rgb(108,108,108); }
::selection { background: rgb(217,217,217); }
img { display: block; max-width: 100%; }

/* ---------- page shell ---------- */

.page {
  width: 100%;
  max-width: 1800px;
  margin: 0 auto;
  background: #fff;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.page--home {
  gap: clamp(80px, 12vw, 240px);
  padding: clamp(20px, 4vw, 40px) clamp(20px, 8vw, 160px) clamp(20px, 3vw, 32px);
}

.page--project {
  gap: clamp(60px, 10vw, 160px);
  padding: clamp(60px, 10vw, 160px) clamp(20px, 8vw, 160px) clamp(20px, 3vw, 32px);
}

/* ---------- nav ---------- */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 40;
  width: 100%;
  max-width: 1800px;
  margin: 0 auto;
  padding: 12px clamp(20px, 8vw, 160px);
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
  background: rgba(255,255,255,0.55);
  transition: background 0.2s ease;
}
.nav.is-open { background: transparent; }

.nav-logo {
  font-weight: 700;
  font-size: clamp(22px, 3vw, 30px);
  line-height: 100%;
  color: #000;
  transition: color 0.2s ease;
}
.nav-logo.is-open { color: #fff; }

.nav-links {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 4px;
  align-items: center;
}

.nav-link {
  font-weight: 700;
  font-size: clamp(13.5px, 1.8vw, 18px);
  line-height: 100%;
  color: #000;
  border-radius: 2px;
  padding: 10px 16px;
  transition: background 0.2s ease, color 0.2s ease;
}
.nav-link:hover {
  background: rgba(0,0,0,0.06);
  color: rgb(90,90,90) !important;
}

.nav-burger {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
  position: relative;
  z-index: 31;
}
.nav-burger-bar {
  display: block;
  width: 24px;
  height: 2px;
  background: #000;
  transition: transform 0.25s ease, opacity 0.2s ease, background 0.2s ease;
  position: absolute;
}
.nav-burger-bar--top { transform: translateY(-8px); }
.nav-burger-bar--bottom { transform: translateY(8px); }
.nav-burger.is-open .nav-burger-bar { background: #fff; }
.nav-burger.is-open .nav-burger-bar--top { transform: translateY(0); opacity: 0; }
.nav-burger.is-open .nav-burger-bar--bottom { transform: translateY(0); opacity: 0; }

.nav-spacer { height: 64px; align-self: stretch; }

.mobile-menu {
  display: none;
  flex-direction: column;
  justify-content: flex-end;
  gap: 24px;
  position: fixed;
  inset: 0;
  background: linear-gradient(180deg, rgb(20,20,20) 0%, rgb(20,20,20) 40%, rgb(90,90,90) 100%);
  padding: 40px clamp(20px, 8vw, 160px) 64px;
  z-index: 30;
  transform: translateY(-100%);
  transition: transform 0.45s cubic-bezier(0.65,0,0.35,1);
}
.mobile-menu.is-mounted { display: flex; }
.mobile-menu.is-open { transform: translateY(0); }
.mobile-menu a {
  font-weight: 700;
  font-size: clamp(36px, 10vw, 56px);
  line-height: 1;
  letter-spacing: -0.04em;
  color: #fff;
}

@media (max-width: 900px) {
  .nav-links { display: none !important; }
  .nav-burger { display: flex !important; }
}

/* ---------- hero ---------- */

.hero {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: clamp(40px, 6vw, 80px);
  justify-content: center;
  align-items: center;
  align-self: stretch;
}
.hero-image {
  width: 100%;
  aspect-ratio: 1600/852;
  border-radius: 4px;
  object-fit: cover;
  align-self: stretch;
  background: rgb(217,217,217);
  opacity: 0;
  transition: opacity 0.25s ease;
}
.hero-image[src] { opacity: 1; }
.hero-headline-row {
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  align-self: stretch;
}
.hero-headline {
  flex-grow: 1;
  font-weight: 700;
  font-size: clamp(28px, 5vw, 60px);
  line-height: 0.95;
  letter-spacing: -0.04em;
  color: #000;
  margin: 0;
}
.hero-headline .accent { color: rgb(108,108,108); }

/* ---------- generic section / split grid ---------- */

.section {
  display: flex;
  flex-direction: column;
  gap: clamp(60px, 10vw, 120px);
  align-items: flex-start;
  align-self: stretch;
}

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  align-items: start;
  align-self: stretch;
}
@media (max-width: 900px) {
  .split { grid-template-columns: 1fr !important; gap: 32px !important; }
}

.section-title {
  font-weight: 700;
  font-size: clamp(32px, 6vw, 60px);
  line-height: 0.95;
  letter-spacing: -0.04em;
  color: #000;
  margin: 0;
}
.section-title--about { font-size: clamp(32px, 6vw, 65px); }

.section-body {
  font-weight: 700;
  font-size: clamp(16px, 2vw, 20px);
  line-height: 0.95;
  letter-spacing: -0.04em;
  color: rgb(108,108,108);
  margin: 0;
}

/* ---------- project teasers (landing) ---------- */

.project-list {
  display: flex;
  flex-direction: column;
  gap: 48px;
  align-items: flex-start;
  align-self: stretch;
}

.project-card {
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: flex-start;
  align-self: stretch;
}

.project-card-media {
  width: 100%;
  border-radius: 4px;
  overflow: hidden;
  align-self: stretch;
}
.project-card-media--featured { aspect-ratio: 1600/814; }
.project-card-media--grid { aspect-ratio: 796/582; }
@media (max-width: 900px) {
  /* Below 900px the "split" grid collapses to a single column, so the
     featured card is stacked with the others at the same width — give it
     the same, more square ratio instead of the wide desktop hero crop. */
  .project-card-media--featured { aspect-ratio: 796/582; }
}

.project-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}
.project-card:hover .project-card-media img { transform: scale(1.05); }

.project-card-title {
  font-weight: 500;
  font-size: clamp(18px, 2vw, 20px);
  line-height: 100%;
  letter-spacing: -0.04em;
  color: rgb(108,108,108);
  transition: color 0.2s ease;
}
.project-card:hover .project-card-title { color: #000; }

.tag-row {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 4px;
  align-items: flex-start;
}
.tag {
  border-radius: 2px;
  background: rgb(244,244,244);
  padding: 8px 12px;
  font-weight: 500;
  font-size: 16px;
  line-height: 100%;
  letter-spacing: -0.04em;
  color: rgb(108,108,108);
}
.tag--dark { background: rgb(39,39,39); color: #fff; }
.tag--gold { background: rgb(165,147,75); color: #fff; }

/* ---------- about ---------- */

.about-body-col {
  display: flex;
  flex-direction: column;
  gap: 32px;
  align-items: flex-start;
}
.skills-row {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}
.skills-label {
  font-weight: 700;
  font-size: clamp(16px, 2vw, 20px);
  line-height: 100%;
  letter-spacing: -0.04em;
  color: rgb(108,108,108);
}
.about-imgs {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: stretch;
  align-self: stretch;
}
.about-imgs-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  align-items: start;
  align-self: stretch;
}
@media (max-width: 900px) {
  .about-imgs, .about-imgs-row { gap: 4px !important; }
}
.about-imgs img,
.about-imgs .img-placeholder {
  width: 100%;
  aspect-ratio: 796/520;
  border-radius: 4px;
  object-fit: cover;
  display: block;
}
.about-imgs-full img,
.about-imgs-full .img-placeholder {
  aspect-ratio: 1600/765;
  object-position: center center;
}

.img-placeholder { background: rgb(217,217,217); }

/* ---------- contact ---------- */

.contact {
  border-top: 1px solid #000;
  display: flex;
  flex-direction: column;
  gap: clamp(60px, 10vw, 120px);
  padding: 32px 0;
  align-items: flex-start;
  align-self: stretch;
}
.contact-row {
  display: flex;
  flex-direction: row;
  gap: 8px;
  align-items: flex-start;
  align-self: stretch;
}
.contact-headline {
  flex-grow: 1;
  font-weight: 700;
  font-size: clamp(32px, 7vw, 65px);
  line-height: 0.95;
  letter-spacing: -0.04em;
  margin: 0;
}
.contact-headline .label { color: #000; }
.mail-link {
  color: rgb(108,108,108);
  display: inline-flex;
  align-items: center;
}
.mail-arrow {
  display: inline-block;
  max-width: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-width 0.3s ease, opacity 0.3s ease;
  white-space: nowrap;
}
.mail-link:hover .mail-arrow { max-width: 1.4em; opacity: 1; }
.mail-text {
  transition: transform 0.3s ease;
  transform: translateX(0);
  display: inline-block;
}
.mail-link:hover .mail-text { transform: translateX(1.4em); }

/* ---------- footer ---------- */

.footer {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  align-items: center;
  align-self: stretch;
}
.footer-name {
  font-weight: 700;
  font-size: 16px;
  line-height: 100%;
  letter-spacing: -0.04em;
  color: #000;
}
.footer-links {
  display: flex;
  flex-direction: row;
  gap: 40px;
  align-items: center;
}
.footer-links a {
  font-weight: 700;
  font-size: 16px;
  line-height: 100%;
  letter-spacing: -0.04em;
  color: #000;
}

/* ---------- project / case study page ---------- */

.cs-title {
  align-self: stretch;
  font-weight: 700;
  font-size: clamp(32px, 7vw, 65px);
  line-height: 0.95;
  letter-spacing: -0.04em;
  margin: 0;
}
.cs-title .eyebrow { color: rgb(136,136,136); }
.cs-title .headline { color: #000; }

.meta-row { display: flex; flex-direction: column; gap: clamp(40px,6vw,80px); align-items: flex-start; align-self: stretch; }
.meta-col {
  display: flex;
  flex-direction: column;
  gap: 16px;
  justify-content: center;
  align-items: flex-start;
}
.meta-label {
  font-weight: 500;
  font-size: 16px;
  line-height: 100%;
  letter-spacing: -0.04em;
  color: rgb(108,108,108);
}

.cs-hero-img, .cs-hero-img.img-placeholder {
  width: 100%;
  aspect-ratio: 1600/859.425;
  border-radius: 4px;
  object-fit: cover;
  align-self: stretch;
}

.cs-heading {
  font-weight: 700;
  font-size: clamp(24px, 4vw, 40px);
  line-height: 0.95;
  letter-spacing: -0.04em;
  margin: 0;
  color: #000;
}
.cs-heading--muted { color: rgb(136,136,136); }

.cs-body {
  font-weight: 700;
  font-size: clamp(24px, 4vw, 40px);
  line-height: 0.95;
  letter-spacing: -0.04em;
  margin: 0;
  color: rgb(136,136,136);
}
.cs-body--dark { color: #000; }
.cs-body .muted { color: rgb(136,136,136); }
.cs-body .dark { color: #000; }

.gallery-block {
  display: flex;
  flex-direction: column;
  gap: 24px;
  align-items: flex-start;
  align-self: stretch;
}
.gallery {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  align-items: start;
  align-self: stretch;
}
.gallery--full { grid-template-columns: 1fr; }
@media (max-width: 640px) {
  .gallery { grid-template-columns: 1fr !important; }
}
.gallery img, .gallery .img-placeholder {
  width: 100%;
  aspect-ratio: 796/814;
  border-radius: 4px;
  object-fit: cover;
}
.gallery--full img, .gallery--full .img-placeholder {
  aspect-ratio: 1600/814;
}
.gallery-caption {
  font-weight: 500;
  font-style: italic;
  font-size: 20px;
  line-height: 100%;
  letter-spacing: -0.04em;
  color: rgb(108,108,108);
}

.checker {
  background-image:
    linear-gradient(45deg, rgb(238,238,238) 25%, transparent 25%, transparent 75%, rgb(238,238,238) 75%, rgb(238,238,238)),
    linear-gradient(45deg, rgb(238,238,238) 25%, transparent 25%, transparent 75%, rgb(238,238,238) 75%, rgb(238,238,238));
  background-size: 100px 100px;
  background-position: 0 0, 50px 50px;
  background-color: rgb(250,250,250);
}
.video-block { display: flex; flex-direction: column; gap: 8px; align-items: flex-start; align-self: stretch; }
.video-placeholder {
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: 4px;
  display: flex;
  justify-content: center;
  align-items: center;
  align-self: stretch;
}
.video-placeholder span {
  font-weight: 700;
  font-size: clamp(24px, 4vw, 40px);
  line-height: 0.95;
  letter-spacing: -0.04em;
  color: rgb(120,120,120);
}
.video-embed-frame {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  border-radius: 4px;
  overflow: hidden;
  background: rgb(217,217,217);
}
/* Videos placed in a gallery grid (video-pair / photo-video) match the
   photo pairs' own ratio instead of 16:9, so a row of tiles looks
   consistent whether it's photos, videos, or a mix -- but only once the
   grid is actually two columns (desktop); on mobile .gallery collapses
   to a single column, where the wider 16:9 already looked right. The
   single full-width video block (.video-block, not in a grid) keeps
   16:9 always. */
@media (min-width: 641px) {
  .gallery .video-embed-frame {
    aspect-ratio: 796/814;
  }
}
.video-embed {
  display: block;
  position: absolute;
  top: 50%;
  left: 50%;
  width: 115%;
  height: 115%;
  transform: translate(-50%, -50%);
  border: 0;
}

.related-heading {
  font-weight: 700;
  font-size: clamp(24px, 4vw, 40px);
  line-height: 0.95;
  letter-spacing: -0.04em;
  color: #000;
  margin: 0;
  align-self: stretch;
}
.related-card { display: flex; flex-direction: column; gap: 16px; align-items: flex-start; }
.related-card img, .related-card .img-placeholder {
  width: 100%;
  aspect-ratio: 796/429;
  border-radius: 4px;
  object-fit: cover;
  align-self: stretch;
}
.related-card span {
  align-self: stretch;
  font-weight: 700;
  font-size: 16px;
  line-height: 100%;
  letter-spacing: -0.04em;
  color: rgb(136,136,136);
}

/* ---------- legal pages (Impressum / Datenschutz) ---------- */

.legal-content {
  display: flex;
  flex-direction: column;
  gap: 32px;
  max-width: 760px;
}
.legal-content h2 {
  font-weight: 700;
  font-size: clamp(20px, 2.6vw, 26px);
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: #000;
  margin: 0 0 12px;
}
.legal-content p {
  font-weight: 400;
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: -0.01em;
  color: rgb(90,90,90);
  margin: 0 0 8px;
}
.legal-content a { text-decoration: underline; }
.legal-note {
  font-size: 14px;
  line-height: 1.5;
  color: rgb(180,180,180);
  max-width: 760px;
}