/*
 * Metro Lab promo — constructivist / transit-poster geometry
 * Flat planes, diagonals, limited palette (red, teal, gold, cream, charcoal)
 */

:root {
  --cream: #f2ebe3;
  --cream-dark: #e8dfd4;
  --charcoal: #1c1b19;
  --red-deep: #a62c2a;
  --teal-dark: #1a5560;
  --gold: #d4a21e;
  --white: #faf8f5;
  --font-poster: "Bebas Neue", "Arial Narrow", sans-serif;
  --font-body: "Montserrat", system-ui, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  height: 100%;
}

body {
  margin: 0;
  min-height: 100%;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.55;
  color: var(--charcoal);
  background: var(--cream);
}

/* First screen only: nav + poster title + download CTA (screenshots scroll below) */
.viewport-hero {
  min-height: 100vh;
  height: 100vh;
  max-height: 100vh;
  height: 100dvh;
  max-height: 100dvh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-sizing: border-box;
}

/* ========== Poster hero: diagonals + title in one strip ========== */
.poster-hero {
  flex: 1 1 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  border-bottom: 4px solid var(--charcoal);
}

.poster-stage {
  position: relative;
  flex: 1 1 0;
  min-height: 0;
  overflow: hidden;
  background: var(--cream);
}

.poster-stage__decor {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.plane {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.plane-red {
  background: var(--red-deep);
  clip-path: polygon(0 0, 100% 0, 62% 100%, 0 78%);
  z-index: 1;
}

.plane-teal {
  background: var(--teal-dark);
  clip-path: polygon(100% 0, 100% 100%, 28% 100%, 100% 12%);
  z-index: 2;
}

.plane-gold {
  background: var(--gold);
  clip-path: polygon(0 55%, 48% 0, 58% 0, 0 70%);
  z-index: 3;
  opacity: 0.95;
}

.plane-cream {
  background: var(--cream);
  clip-path: polygon(0 100%, 0 82%, 35% 100%);
  z-index: 4;
}

/* Speed lines + ML mark (poster numerals vibe) */
.motion-block {
  position: absolute;
  top: 0.65rem;
  right: clamp(0.5rem, 3vw, 1.75rem);
  z-index: 6;
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.motion-num {
  font-family: var(--font-poster);
  font-size: clamp(1.75rem, 5vw, 3rem);
  line-height: 1;
  color: var(--white);
  letter-spacing: 0.04em;
  text-shadow: 2px 2px 0 rgba(0, 0, 0, 0.15);
}

.motion-lines {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.motion-lines span {
  display: block;
  height: 3px;
  background: var(--white);
  border-radius: 1px;
  box-shadow: 1px 1px 0 rgba(0, 0, 0, 0.12);
}

.motion-lines span:nth-child(1) {
  width: 4.5rem;
}
.motion-lines span:nth-child(2) {
  width: 3.5rem;
}
.motion-lines span:nth-child(3) {
  width: 5rem;
}
.motion-lines span:nth-child(4) {
  width: 2.8rem;
}
.motion-lines span:nth-child(5) {
  width: 3.8rem;
}

.train-art {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 62%;
  z-index: 5;
  min-height: 90px;
}

.train {
  filter: drop-shadow(3px 4px 0 rgba(0, 0, 0, 0.12));
}

@media (prefers-reduced-motion: no-preference) {
  .train-a {
    animation: slide-in 1.1s cubic-bezier(0.22, 1, 0.36, 1) both;
  }
  .train-b {
    animation: slide-in 1.15s 0.08s cubic-bezier(0.22, 1, 0.36, 1) both;
  }
  .train-c {
    animation: slide-in 1.05s 0.15s cubic-bezier(0.22, 1, 0.36, 1) both;
  }
}

@keyframes slide-in {
  from {
    opacity: 0;
    transform: translateX(-2rem) translateY(0.5rem);
  }
  to {
    opacity: 1;
    transform: translateX(0) translateY(0);
  }
}

/* ========== Nav ========== */
.poster-nav {
  flex-shrink: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding: 0.55rem clamp(0.85rem, 3vw, 1.5rem);
  padding-top: calc(0.55rem + env(safe-area-inset-top, 0px));
  background: var(--charcoal);
  color: var(--cream);
  border-bottom: 3px solid var(--gold);
}

.poster-nav-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1.25rem;
}

.nav-mark {
  font-family: var(--font-poster);
  font-size: 1.5rem;
  line-height: 1;
  letter-spacing: 0.18em;
  color: var(--cream);
  text-decoration: none;
}

.nav-link {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  color: var(--gold);
  text-decoration: none;
}

.nav-link:hover {
  color: var(--white);
}

.nav-link--ghost {
  color: var(--cream);
  border: 2px solid var(--gold);
  padding: 0.35rem 0.65rem;
}

.nav-link--ghost:hover {
  background: var(--gold);
  color: var(--charcoal);
}

.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;
}

/* ========== Title on poster (compact slab over diagonals) ========== */
.poster-hero__copy {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 8;
  padding: clamp(0.35rem, 1.8vmin, 0.85rem) clamp(0.65rem, 3vw, 1.25rem)
    clamp(0.4rem, 1.5vmin, 0.75rem);
  text-align: center;
  background: rgba(242, 235, 227, 0.96);
  border-top: 3px solid var(--charcoal);
}

.kicker {
  margin: 0 0 0.5rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--teal-dark);
}

.kicker--hero {
  margin: 0 0 0.15rem;
  font-size: clamp(0.52rem, 1.1vmin, 0.72rem);
  letter-spacing: 0.18em;
}

.mega-title {
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  line-height: 0.88;
}

.mega-title--hero {
  line-height: 0.86;
}

.mega-line {
  font-family: var(--font-poster);
  font-size: clamp(4rem, 18vw, 9.5rem);
  font-weight: 400;
  letter-spacing: 0.02em;
  color: var(--charcoal);
}

.mega-title--hero .mega-line {
  font-size: clamp(2.4rem, 12vmin, 8rem);
  letter-spacing: 0.03em;
}

.mega-line--accent {
  color: var(--red-deep);
  margin-top: -0.02em;
}

.poster-sub {
  margin: 1.25rem auto 0;
  max-width: 32rem;
  font-size: 0.95rem;
  font-weight: 500;
  color: #3d3a36;
  line-height: 1.65;
}

.poster-sub--hero {
  margin: 0.2rem auto 0;
  max-width: 38rem;
  font-size: clamp(0.62rem, 1.9vmin, 0.88rem);
  font-weight: 600;
  line-height: 1.35;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 9rem;
  padding: 0.9rem 1.5rem;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  text-decoration: none;
  border: 3px solid var(--charcoal);
  cursor: pointer;
  transition: transform 0.12s ease, background 0.12s ease, color 0.12s ease;
}

.btn:active {
  transform: scale(0.98);
}

.btn-solid {
  background: var(--charcoal);
  color: var(--cream);
}

.btn-solid:hover {
  background: var(--teal-dark);
  border-color: var(--teal-dark);
}

.btn-outline {
  background: var(--cream);
  color: var(--charcoal);
}

.btn-outline:hover {
  background: var(--gold);
  border-color: var(--charcoal);
}

.btn--compact {
  min-width: unset;
  padding: 0.65rem 1.1rem;
  font-size: 0.65rem;
}

/* ========== Mega download CTA ========== */
.download-hero {
  position: relative;
  flex: 1 1 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--gold);
  border-bottom: 5px solid var(--charcoal);
  padding-bottom: env(safe-area-inset-bottom, 0px);
}

.download-hero__slant {
  position: absolute;
  top: 0;
  right: -25%;
  width: 62%;
  height: 130%;
  background: var(--red-deep);
  transform: skewX(-12deg);
  transform-origin: top right;
  pointer-events: none;
  z-index: 0;
  opacity: 0.92;
}

.download-hero__inner {
  position: relative;
  z-index: 1;
  flex: 1 1 0;
  min-height: 0;
  width: 100%;
  max-width: 52rem;
  margin: 0 auto;
  padding: clamp(0.5rem, 2vmin, 1.25rem) clamp(0.85rem, 3vw, 1.5rem)
    clamp(0.5rem, 2vmin, 1.25rem);
  text-align: center;
  display: flex;
  flex-direction: column;
  justify-content: center;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.download-hero__status {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.2rem;
  margin: 0 0 0.35rem;
}

.download-hero__status-line {
  margin: 0;
  font-family: var(--font-poster);
  font-size: clamp(1.35rem, 5.5vmin, 3.75rem);
  line-height: 0.95;
  letter-spacing: 0.12em;
  color: var(--charcoal);
  text-shadow: 3px 3px 0 rgba(28, 27, 25, 0.08);
}

.download-hero__status-line--pop {
  font-size: clamp(1.65rem, 7vmin, 4.75rem);
  letter-spacing: 0.1em;
  color: var(--cream);
  background: var(--charcoal);
  padding: 0.1em 0.35em 0.06em;
  border: 3px solid var(--charcoal);
  box-shadow: 5px 5px 0 rgba(26, 85, 96, 0.55);
}

.download-hero__mega {
  margin: 0.15rem 0 0.3rem;
  font-family: var(--font-poster);
  font-size: clamp(2.5rem, 16vmin, 9.5rem);
  line-height: 0.88;
  letter-spacing: 0.04em;
  color: var(--charcoal);
  text-shadow: 4px 4px 0 rgba(28, 27, 25, 0.1);
}

.download-hero__platforms {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(0.45rem, 2vmin, 0.75rem);
  justify-content: center;
  align-items: stretch;
  width: 100%;
  max-width: min(36rem, 100%);
  margin: 0.1rem auto 0;
}

.download-hero__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  width: 100%;
  max-width: min(26rem, 100%);
  margin: 0.1rem auto 0;
  padding: clamp(0.75rem, 2.2vmin, 1.35rem) clamp(1rem, 3vw, 1.5rem);
  font-family: var(--font-poster);
  font-size: clamp(1.35rem, 4.5vmin, 2.75rem);
  letter-spacing: 0.1em;
  text-decoration: none;
  color: var(--cream);
  background: var(--charcoal);
  border: 4px solid var(--charcoal);
  box-shadow: 8px 8px 0 var(--teal-dark);
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
}

.download-hero__btn:hover {
  background: var(--teal-dark);
  box-shadow: 9px 9px 0 var(--charcoal);
  color: var(--cream);
}

.download-hero__btn:focus-visible {
  outline: 3px solid var(--cream);
  outline-offset: 4px;
}

.download-hero__btn:active {
  transform: translate(4px, 4px);
  box-shadow: 6px 6px 0 var(--charcoal);
}

.download-hero__btn-label {
  line-height: 1;
}

.download-hero__btn-arrow {
  font-size: 1.5em;
  line-height: 0;
  font-weight: 400;
  margin-top: 0.08em;
}

.download-hero__btn--platform {
  flex: 1 1 12rem;
  width: auto;
  min-width: 0;
  max-width: min(17.5rem, 100%);
  margin: 0;
  padding: clamp(0.5rem, 1.6vmin, 0.95rem) clamp(0.7rem, 2vw, 1.1rem);
  font-size: clamp(0.95rem, 3.1vmin, 1.75rem);
  letter-spacing: 0;
  gap: 0.45rem;
  justify-content: center;
  text-align: center;
}

/* Letter-spacing on the parent adds trailing space after the last glyph and shifts the block
   right; keep spacing on the label only and trim the tail. */
.download-hero__btn--platform .download-hero__btn-label {
  letter-spacing: 0.08em;
  margin-right: -0.08em;
}

.download-hero__btn--platform .download-hero__btn-arrow {
  font-size: 1.25em;
  letter-spacing: 0;
  margin-top: 0;
}

.download-hero__hint {
  margin: clamp(0.35rem, 1.5vmin, 0.85rem) auto 0;
  max-width: 34rem;
  font-size: clamp(0.65rem, 1.6vmin, 0.82rem);
  font-weight: 600;
  color: #2a2825;
  line-height: 1.45;
}

.download-hero__hint a {
  color: var(--teal-dark);
  font-weight: 700;
  white-space: nowrap;
}

.download-hero__hint a:hover {
  color: var(--charcoal);
}

.download-hero__secondary {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-top: clamp(0.35rem, 1.5vmin, 0.75rem);
  padding-top: clamp(0.35rem, 1.5vmin, 0.65rem);
  border-top: 3px solid rgba(28, 27, 25, 0.2);
}

.below-fold {
  border-top: 3px dashed var(--charcoal);
}

/* ========== Screenshot ========== */
.shot-plate {
  margin: 0;
  padding: 0;
  background: var(--cream-dark);
  border-bottom: 4px solid var(--charcoal);
}

.shot-rail {
  height: 6px;
  background: repeating-linear-gradient(
    90deg,
    var(--charcoal) 0,
    var(--charcoal) 12px,
    var(--cream) 12px,
    var(--cream) 18px
  );
}

.shot-plate__frame {
  max-width: min(36rem, 92vw);
  margin: 0 auto;
}

.shot-inner {
  padding: clamp(0.5rem, 2vw, 1rem);
  border-left: 3px solid var(--charcoal);
  border-right: 3px solid var(--charcoal);
}

.shot-inner img {
  display: block;
  width: 100%;
  height: auto;
  border: 3px solid var(--charcoal);
  box-shadow: 5px 5px 0 var(--charcoal);
}

.shot-cap {
  margin: 0;
  padding: 0.55rem clamp(1rem, 4vw, 2rem) 0.85rem;
  font-family: var(--font-body);
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-align: center;
  color: var(--teal-dark);
  background: var(--cream);
}

/* ========== Feature tiles ========== */
.tiles {
  padding: 1.35rem clamp(0.85rem, 3vw, 1.5rem) 1.25rem;
  background: var(--cream);
}

.section-label {
  margin: 0 0 0.65rem;
  font-family: var(--font-poster);
  font-size: 1.35rem;
  letter-spacing: 0.16em;
  color: var(--charcoal);
  text-align: center;
}

.tile-grid {
  display: grid;
  gap: 0.65rem;
  grid-template-columns: repeat(auto-fit, minmax(13.5rem, 1fr));
  max-width: 56rem;
  margin: 0 auto;
}

.tile {
  position: relative;
  padding: 0.85rem 0.85rem 0.85rem 1.1rem;
  background: var(--white);
  border: 2px solid var(--charcoal);
  box-shadow: 4px 4px 0 rgba(28, 27, 25, 0.1);
}

.tile-stripe {
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 6px;
}

.stripe-red {
  background: var(--red-deep);
}
.stripe-teal {
  background: var(--teal-dark);
}
.stripe-gold {
  background: var(--gold);
}

.tile h3 {
  margin: 0 0 0.3rem;
  font-family: var(--font-poster);
  font-size: 1.15rem;
  letter-spacing: 0.05em;
  color: var(--charcoal);
}

.tile p {
  margin: 0;
  font-size: 0.76rem;
  font-weight: 500;
  color: #4a4640;
  line-height: 1.45;
}

/* ========== Install ========== */
.install-plate {
  position: relative;
  margin: 0;
  padding: 2rem clamp(1rem, 4vw, 2rem) 2.25rem;
  background: var(--charcoal);
  color: var(--cream);
  border-top: 4px solid var(--gold);
}

.install-bar {
  position: absolute;
  top: 0;
  left: 0;
  right: 40%;
  height: 6px;
  background: var(--red-deep);
}

.section-label--on-dark {
  color: var(--cream);
  text-align: left;
  margin-bottom: 1rem;
}

.code-block {
  margin: 0;
  padding: 1.1rem 1.25rem;
  background: #0d0d0c;
  border: 3px solid var(--gold);
  font-family: ui-monospace, "Cascadia Code", monospace;
  font-size: 0.78rem;
  line-height: 1.5;
  color: var(--cream);
  overflow-x: auto;
}

.install-note {
  margin: 1rem 0 0;
  font-size: 0.82rem;
  font-weight: 500;
  color: #b8b0a6;
}

.install-note code {
  color: var(--gold);
  font-size: 0.9em;
}

/* ========== License + footer ========== */
.license-line {
  margin: 0;
  padding: 1.5rem clamp(1rem, 4vw, 2rem);
  font-size: 0.8rem;
  font-weight: 500;
  color: #5c574f;
  text-align: center;
  background: var(--cream);
  border-top: 3px solid var(--charcoal);
}

.license-line a {
  color: var(--teal-dark);
  font-weight: 700;
}

.poster-foot {
  padding: 1.25rem clamp(1rem, 4vw, 2rem) 2rem;
  text-align: center;
  background: var(--cream);
}

.foot-rule {
  display: block;
  width: 4rem;
  height: 4px;
  margin: 0 auto 1rem;
  background: var(--charcoal);
}

.poster-foot p {
  margin: 0;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.poster-foot__links {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin: 0;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.poster-foot a {
  color: var(--charcoal);
  text-decoration: none;
}

.poster-foot a:hover {
  color: var(--red-deep);
}

/* ========== Mobile: simplify diagonals ========== */
@media (max-width: 640px) {
  .plane-gold {
    clip-path: polygon(0 40%, 55% 0, 65% 0, 0 58%);
  }

  .plane-teal {
    clip-path: polygon(100% 0, 100% 100%, 20% 100%, 100% 18%);
  }

  .motion-block {
    top: 0.45rem;
    right: 0.5rem;
  }

  .train-art {
    opacity: 0.85;
  }
}

/* Very short viewports: type scales down via vmin; inner panel scrolls if needed */
@media (max-height: 520px) {
  .mega-title--hero .mega-line {
    font-size: clamp(1.85rem, 10vmin, 3.5rem);
  }

  .download-hero__mega {
    font-size: clamp(2rem, 14vmin, 5rem);
  }

  .poster-sub--hero {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .train-a,
  .train-b,
  .train-c {
    animation: none !important;
  }
}

/* ========== Legal subpages (Impressum / Datenschutz) ========== */
.legal-doc {
  max-width: 42rem;
  margin: 0 auto;
  padding: 2rem clamp(1rem, 4vw, 2rem) 4rem;
}

.legal-doc .legal-back {
  display: inline-block;
  margin-bottom: 1.5rem;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  color: var(--teal-dark);
  text-decoration: none;
}

.legal-doc .legal-back:hover {
  color: var(--red-deep);
}

.legal-doc h1 {
  margin: 0 0 1.25rem;
  font-family: var(--font-poster);
  font-size: clamp(1.75rem, 5vw, 2.25rem);
  letter-spacing: 0.08em;
  line-height: 1.1;
}

.legal-doc h2 {
  margin: 2rem 0 0.5rem;
  font-size: 1rem;
  font-weight: 700;
}

.legal-doc p,
.legal-doc ul {
  margin: 0 0 1rem;
}

.legal-doc ul {
  padding-left: 1.25rem;
}

.legal-doc .legal-note {
  padding: 1rem 1.1rem;
  font-size: 0.9rem;
  background: var(--cream-dark);
  border-left: 4px solid var(--gold);
}