:root {
  --bg: #080b0e;
  --surface: #0d1115;
  --surface-raised: #12171d;
  --text: #f5f4f0;
  --muted: #a6acb2;
  --line: rgba(255, 255, 255, 0.13);
  --accent: #f2d06c;
  --accent-deep: #ddba50;
  --blue: #3d78ba;
  --header-height: 86px;
  --shell: min(1240px, calc(100vw - 80px));
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Tahoma, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

body.intro-active {
  overflow: hidden;
}

html[lang="en"] body {
  font-family: "Arial Narrow", Arial, sans-serif;
}

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

button,
input,
select,
textarea {
  font: inherit;
}

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

.site-content {
  opacity: 1;
  transition: opacity 700ms var(--ease);
}

.intro-active .site-content {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
}

.intro-screen {
  position: fixed;
  z-index: 100;
  inset: 0;
  display: grid;
  place-items: center;
  background: #000;
  opacity: 1;
  visibility: visible;
  transition: opacity 700ms var(--ease), visibility 700ms step-end;
}

.intro-screen.is-leaving {
  opacity: 0;
  visibility: hidden;
}

.intro-animation {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #000;
}

.intro-controls {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-block-end: clamp(44px, 7vh, 72px);
  background: linear-gradient(to top, rgba(0, 0, 0, 0.45), transparent 29%);
  transition: opacity 380ms ease;
}

.intro-screen.is-playing .intro-controls {
  opacity: 0;
  pointer-events: none;
}

.intro-skip {
  position: absolute;
  bottom: clamp(14px, 2.5vh, 26px);
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  padding: 8px 22px;
  border: 1px solid rgba(255, 255, 255, 0.25);
  background: rgba(0, 0, 0, 0.5);
  color: var(--muted);
  font-size: 0.78rem;
  cursor: pointer;
  border-radius: 4px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 300ms ease, color 200ms ease, border-color 200ms ease;
}

.intro-screen.is-playing .intro-skip {
  opacity: 1;
  pointer-events: auto;
}

.intro-skip:hover,
.intro-skip:focus-visible {
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.5);
}

.intro-start {
  position: relative;
  min-width: min(230px, calc(100vw - 46px));
  min-height: 58px;
  padding: 0 48px;
  color: var(--text);
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.42);
  cursor: pointer;
  font-weight: 700;
  font-size: 0.96rem;
  letter-spacing: 0.03em;
  transition: color 220ms ease, border-color 220ms ease, background 220ms ease, transform 220ms var(--ease);
}

html[lang="en"] .intro-start {
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.intro-start:hover,
.intro-start:focus-visible {
  color: #090c0f;
  border-color: var(--accent);
  background: var(--accent);
  transform: translateY(-2px);
}

.intro-start:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 4px;
}

.site-header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 20;
  transition: background 280ms ease, border-color 280ms ease, backdrop-filter 280ms ease;
  border-bottom: 1px solid transparent;
}

.site-header.scrolled {
  background: rgba(8, 11, 14, 0.8);
  border-color: var(--line);
  backdrop-filter: blur(18px);
}

.nav-shell {
  width: var(--shell);
  height: var(--header-height);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: clamp(28px, 5vw, 72px);
}

.brand {
  width: 146px;
  height: 50px;
  overflow: hidden;
  flex: 0 0 auto;
}

.brand img,
.footer-brand img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  mix-blend-mode: screen;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: clamp(20px, 3vw, 42px);
  color: var(--muted);
  font-size: 0.93rem;
}

.nav-links a {
  transition: color 180ms ease;
}

.nav-links a:hover {
  color: var(--text);
}

.nav-actions {
  margin-inline-start: auto;
  display: flex;
  align-items: center;
  gap: 22px;
}

.lang-switch {
  direction: ltr;
  display: flex;
  gap: 9px;
  align-items: center;
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  padding: 12px 0;
  font-size: 0.8rem;
  letter-spacing: 0.12em;
}

.lang-current {
  color: var(--accent);
}

.lang-divider {
  width: 1px;
  height: 17px;
  background: var(--line);
}

.nav-cta {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  padding-inline: 25px;
  border: 1px solid var(--line);
  transition: border-color 200ms ease, background 200ms ease;
}

.nav-cta:hover {
  border-color: var(--accent);
  background: rgba(242, 208, 108, 0.08);
}

.hero {
  position: relative;
  min-height: 100svh;
  overflow: hidden;
  background:
    radial-gradient(circle at 18% 72%, rgba(61, 120, 186, 0.13), transparent 28%),
    var(--bg);
}

.hero-media {
  position: absolute;
  inset-block: 0;
  inset-inline-end: 0;
  width: min(47vw, 720px);
  overflow: hidden;
  transform: translateY(calc(var(--hero-shift, 0) * 1px));
}

.hero-media::before {
  content: "";
  position: absolute;
  z-index: 1;
  inset: 0;
  background:
    linear-gradient(to bottom, rgba(8, 11, 14, 0.2), transparent 20%, rgba(8, 11, 14, 0.4) 80%, var(--bg)),
    linear-gradient(to left, rgba(8, 11, 14, 0.04), var(--bg) 100%);
}

[dir="ltr"] .hero-media::before {
  background:
    linear-gradient(to bottom, rgba(8, 11, 14, 0.2), transparent 20%, rgba(8, 11, 14, 0.4) 80%, var(--bg)),
    linear-gradient(to right, rgba(8, 11, 14, 0.04), var(--bg) 100%);
}

.hero-media img {
  height: 100%;
  width: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.8;
}

.hero-content {
  width: var(--shell);
  min-height: 100svh;
  margin: 0 auto;
  padding-block: calc(var(--header-height) + 56px) 94px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  position: relative;
  z-index: 2;
}

.hero-content > * {
  width: min(540px, 48vw);
}

.eyebrow {
  margin: 0 0 22px;
  color: var(--accent);
  letter-spacing: 0.24em;
  font-size: 0.73rem;
  font-weight: 700;
}

.hero-title {
  margin: 0;
  font-size: clamp(3.4rem, 6.5vw, 6.6rem);
  line-height: 1.14;
  font-weight: 700;
  letter-spacing: 0;
}

html[lang="en"] .hero-title {
  letter-spacing: -0.06em;
  line-height: 0.97;
}

.hero-copy {
  margin: 28px 0 0;
  max-width: 450px;
  font-size: clamp(1rem, 1.2vw, 1.12rem);
  line-height: 2;
  color: var(--muted);
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-block-start: 42px;
}

.button {
  min-height: 58px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding-inline: 32px;
  cursor: pointer;
  font-weight: 700;
  border: 1px solid transparent;
  transition: transform 220ms var(--ease), background 220ms ease, color 220ms ease, border-color 220ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  background: var(--accent);
  color: #101010;
}

.button-primary:hover {
  background: var(--accent-deep);
}

.button-outline {
  border-color: var(--line);
  color: var(--text);
}

.button-outline:hover {
  border-color: var(--accent);
}

.hero-rail {
  position: absolute;
  inset-block-end: 0;
  inset-inline: 0;
  z-index: 2;
  height: 72px;
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: clamp(55px, 12vw, 170px);
  color: var(--muted);
  letter-spacing: 0.12em;
  font-size: 0.82rem;
}

.hero-rail span:not(:last-child)::after {
  content: "";
  position: absolute;
  width: 4px;
  height: 4px;
  margin: 7px clamp(26px, 6vw, 84px);
  border-radius: 50%;
  background: var(--accent);
}

.section-shell {
  width: var(--shell);
  margin: 0 auto;
}

.section-index {
  display: none;
}

.intro {
  padding-block: clamp(76px, 9vw, 128px);
  display: grid;
  grid-template-columns: 1fr 260px;
  gap: clamp(24px, 5vw, 72px);
  align-items: start;
  border-bottom: 1px solid var(--line);
}

.intro-statement {
  max-width: 700px;
  font-size: clamp(1.7rem, 3vw, 2.75rem);
  font-weight: 700;
  line-height: 1.65;
  letter-spacing: 0;
}

.intro-statement p,
.intro-note {
  margin: 0;
}

.intro-note {
  color: var(--muted);
  line-height: 2;
  padding-block-start: 10px;
}

.services {
  padding-block: clamp(78px, 9vw, 132px);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 680px);
  gap: clamp(24px, 5vw, 72px);
  margin-block-end: clamp(54px, 6.5vw, 86px);
}

.section-heading .eyebrow {
  margin-bottom: 18px;
}

h2 {
  margin: 0;
  font-size: clamp(2.2rem, 4vw, 3.55rem);
  line-height: 1.35;
  letter-spacing: 0;
}

html[lang="en"] h2 {
  letter-spacing: -0.06em;
  line-height: 1.1;
}

html[lang="en"] .intro-statement {
  letter-spacing: -0.045em;
}

.service-list {
  margin-inline-start: clamp(24px, 5vw, 72px);
}

.service {
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 84px minmax(230px, 0.8fr) minmax(250px, 1fr);
  gap: clamp(20px, 4vw, 64px);
  align-items: center;
  padding-block: clamp(25px, 3.1vw, 37px);
  transition: border-color 240ms ease, color 240ms ease;
}

.service:last-child {
  border-bottom: 1px solid var(--line);
}

.service:hover {
  border-color: rgba(242, 208, 108, 0.65);
}

.service-number {
  color: var(--accent);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
}

.service h3 {
  margin: 0;
  font-size: clamp(1.3rem, 2vw, 1.62rem);
  font-weight: 700;
}

.service p {
  margin: 0;
  color: var(--muted);
  line-height: 1.95;
}

.standards {
  display: grid;
  grid-template-columns: minmax(320px, 44%) 1fr;
  min-height: 760px;
  background: var(--surface);
}

.standards-media {
  position: relative;
  overflow: hidden;
}

.standards-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(8, 11, 14, 0.5), transparent 38%);
}

.standards-media img {
  height: 100%;
  width: 100%;
  object-fit: cover;
  object-position: center;
}

.standards-copy {
  padding: clamp(62px, 7vw, 112px) clamp(45px, 8vw, 122px);
  max-width: 710px;
}

.standards-copy .eyebrow {
  margin-top: 44px;
}

.steps {
  margin-block-start: clamp(44px, 6vw, 70px);
}

.step {
  border-top: 1px solid var(--line);
  padding-block: 25px;
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 22px;
}

.step:last-child {
  border-bottom: 1px solid var(--line);
}

.step > span {
  color: var(--accent);
  font-size: 0.78rem;
  letter-spacing: 0.16em;
}

.step h3 {
  font-size: 1.12rem;
  margin: 0 0 10px;
}

.step p {
  color: var(--muted);
  margin: 0;
  line-height: 1.85;
}

.work {
  padding-block: clamp(82px, 9vw, 130px);
}

.gallery {
  margin-inline-start: clamp(24px, 5vw, 72px);
  display: grid;
  grid-template-columns: 1.42fr 0.76fr;
  gap: 22px;
  align-items: end;
}

.gallery figure {
  margin: 0;
  overflow: hidden;
  background: var(--surface-raised);
}

.gallery img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 800ms var(--ease);
}

.gallery figure:hover img {
  transform: scale(1.035);
}

.gallery-wide {
  aspect-ratio: 1.45 / 0.82;
}

.gallery-tall {
  aspect-ratio: 0.78 / 1;
}

.contact {
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(42px, 7vw, 110px);
  width: var(--shell);
  margin: 0 auto;
  padding-block: clamp(78px, 9vw, 122px);
}

.contact-copy {
  max-width: 520px;
}

.contact-copy .eyebrow {
  margin-block-start: 38px;
}

.contact-copy > p:not(.section-index):not(.eyebrow) {
  color: var(--muted);
  line-height: 1.9;
  margin: 24px 0 42px;
}

.detail-line {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-block: 19px;
  border-top: 1px solid var(--line);
  font-size: 0.94rem;
}

.detail-line span {
  color: var(--muted);
}

.detail-line strong {
  font-weight: 400;
  text-align: end;
}

.booking-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px 18px;
  padding: clamp(32px, 4.5vw, 54px);
  background: var(--surface);
}

.booking-form label {
  display: flex;
  flex-direction: column;
  gap: 14px;
  font-size: 0.86rem;
  color: var(--muted);
}

.booking-form input,
.booking-form select,
.booking-form textarea {
  width: 100%;
  color: var(--text);
  border: 0;
  border-bottom: 1px solid var(--line);
  background: transparent;
  border-radius: 0;
  padding: 0 0 15px;
  outline: none;
  transition: border-color 180ms ease;
}

.booking-form select {
  color-scheme: dark;
}

.booking-form textarea {
  resize: vertical;
}

.booking-form input:focus,
.booking-form select:focus,
.booking-form textarea:focus {
  border-color: var(--accent);
}

.full {
  grid-column: 1 / -1;
}

.booking-form .button {
  width: 100%;
  margin-top: 10px;
}

.form-status {
  min-height: 1.4em;
  color: var(--accent);
  font-size: 0.87rem;
  line-height: 1.7;
  margin: 0;
}

.footer {
  min-height: 174px;
  padding: 42px max(calc((100vw - 1240px) / 2), 40px);
  border-top: 1px solid var(--line);
  display: flex;
  align-items: center;
  gap: clamp(26px, 6vw, 72px);
  color: var(--muted);
}

.footer-brand {
  width: 154px;
  height: 54px;
}

.footer p {
  margin: 0;
}

.copyright {
  margin-inline-start: auto !important;
  direction: ltr;
  font-size: 0.86rem;
}

.reveal {
  opacity: 0;
  transform: translateY(26px);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
}

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

.hero .reveal:nth-child(2) {
  transition-delay: 80ms;
}

.hero .reveal:nth-child(3) {
  transition-delay: 150ms;
}

.hero .reveal:nth-child(4) {
  transition-delay: 230ms;
}

@media (max-width: 980px) {
  :root {
    --shell: min(100% - 40px, 700px);
    --header-height: 74px;
  }

  .nav-shell {
    gap: 18px;
  }

  .brand {
    width: 118px;
    height: 42px;
  }

  .nav-links,
  .nav-cta {
    display: none;
  }

  .hero {
    min-height: 100svh;
    height: 100svh;
    padding-bottom: 0;
  }

  .hero-media {
    width: 100%;
    height: 38svh;
    inset-block-start: auto;
    inset-block-end: 62px;
  }

  .hero-media::before,
  [dir="ltr"] .hero-media::before {
    background: linear-gradient(to bottom, var(--bg), transparent 32%, rgba(8, 11, 14, 0.45) 100%);
  }

  .hero-content {
    justify-content: flex-start;
    min-height: 0;
    height: 100%;
    padding-block: calc(var(--header-height) + 48px) 0;
  }

  .hero-content > * {
    width: 100%;
  }

  .hero-title {
    font-size: clamp(2.9rem, 12.2vw, 4.4rem);
  }

  .hero-copy {
    margin-top: 21px;
    line-height: 1.8;
  }

  .hero-actions {
    margin-top: 27px;
  }

  .hero-rail {
    height: 62px;
    gap: clamp(30px, 10vw, 60px);
  }

  .hero-rail span:not(:last-child)::after {
    display: none;
  }

  .intro,
  .section-heading {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .intro {
    padding-block: 68px;
  }

  .intro-note {
    max-width: 360px;
  }

  .service-list,
  .gallery {
    margin-inline-start: 0;
  }

  .service {
    grid-template-columns: 52px 1fr;
    gap: 18px;
  }

  .service p {
    grid-column: 2;
  }

  .standards {
    display: flex;
    flex-direction: column-reverse;
    min-height: 0;
  }

  .standards-copy {
    padding: 64px 20px;
    width: var(--shell);
    margin: 0 auto;
  }

  .standards-media {
    height: min(78vw, 470px);
  }

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

  .gallery-tall {
    display: none;
  }

  .contact {
    display: flex;
    flex-direction: column;
  }

  .booking-form {
    padding: 28px 22px;
  }

  .footer {
    padding: 38px 20px;
    flex-wrap: wrap;
    gap: 22px;
  }
}

@media (max-width: 560px) {
  :root {
    --shell: calc(100% - 34px);
  }

  .hero-title {
    font-size: clamp(2.65rem, 11.5vw, 3.25rem);
    line-height: 1.18;
  }

  .hero-copy {
    margin-top: 18px;
    font-size: 0.94rem;
    line-height: 1.75;
  }

  .hero-actions {
    gap: 10px;
    margin-top: 22px;
  }

  .hero-actions .button {
    flex: 1;
    padding-inline: 10px;
  }

  .button {
    min-height: 52px;
  }

  .intro-controls {
    padding-block-end: 42px;
  }

  .intro-start {
    min-height: 54px;
  }

  .booking-form {
    grid-template-columns: 1fr;
  }

  .detail-line {
    flex-direction: column;
    gap: 8px;
  }

  .copyright {
    width: 100%;
    margin-inline-start: 0 !important;
  }
}

@media (max-width: 350px) {
  .hero-actions {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation: none !important;
    transition: none !important;
  }

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

/* ============================================
   COMPARISON SLIDER
   ============================================ */
.comparison-slider {
  margin-inline-start: clamp(24px, 5vw, 72px);
  margin-inline-end: 0;
  user-select: none;
  -webkit-user-select: none;
}

.comparison-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  cursor: ew-resize;
  background: var(--surface-raised);
  border-radius: 6px;
}

.comparison-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.comparison-img img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
}

.comparison-before {
  z-index: 1;
}

.comparison-after {
  z-index: 2;
  will-change: clip-path;
}

.comparison-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  z-index: 3;
  pointer-events: none;
  display: flex;
  align-items: center;
  justify-content: center;
  /* 44px = knob width; translateX(-50%) centers it on left */
  width: 44px;
  transform: translateX(-50%);
}

/* The 3px divider bar, centered within the handle */
.comparison-handle::before {
  content: '';
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  inset-block: 0;
  width: 3px;
  background: #fff;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.45);
}

.comparison-handle-knob {
  position: relative;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  box-shadow: 0 2px 14px rgba(0, 0, 0, 0.4);
  color: #111;
  transition: transform 250ms cubic-bezier(0.34, 1.56, 0.64, 1),
              box-shadow 250ms ease;
}

.comparison-handle-knob svg {
  display: block;
  flex-shrink: 0;
}

.comparison-wrapper:hover .comparison-handle-knob,
.comparison-wrapper:focus-visible .comparison-handle-knob {
  transform: scale(1.12);
  box-shadow: 0 4px 22px rgba(0, 0, 0, 0.5);
}

.comparison-wrapper:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.comparison-wrapper.is-dragging {
  cursor: ew-resize;
}

.comparison-wrapper.is-dragging .comparison-handle-knob {
  transform: scale(1.12);
  box-shadow: 0 4px 22px rgba(0, 0, 0, 0.5);
}

@media (max-width: 720px) {
  .comparison-slider {
    margin-inline-start: 0;
  }
}