:root {
  --black: #000;
  --white: #fff;
  --ink: #111318;
  --muted: #60646f;
  --line: rgba(255, 255, 255, 0.16);
  --line-dark: rgba(0, 0, 0, 0.1);
  --soft: #f5f6f8;
  --accent: #1d4ed8;
  --accent-soft: #dbe7ff;
  --radius: 8px;
  --max: 1180px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "Inter", Arial, sans-serif;
  background: var(--black);
  color: var(--ink);
  line-height: 1.6;
  text-rendering: optimizeLegibility;
}
body.loading { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, a { -webkit-tap-highlight-color: transparent; }

.loader {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: grid;
  place-items: center;
  background: #000;
  transition: opacity 0.55s var(--ease), visibility 0.55s var(--ease);
}
.loader.is-hidden { opacity: 0; visibility: hidden; }
.loader-mark {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border: 1px solid rgba(255, 255, 255, 0.32);
  border-radius: 8px;
  color: #fff;
  font-weight: 800;
  animation: pulse 1.1s var(--ease) infinite alternate;
}
@keyframes pulse {
  from { transform: scale(0.94); opacity: 0.62; }
  to { transform: scale(1); opacity: 1; }
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  transition: background 0.28s ease, border-color 0.28s ease;
}
.site-header.is-scrolled {
  background: rgba(0, 0, 0, 0.76);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(18px);
}
.nav {
  width: min(calc(100% - 32px), var(--max));
  min-height: 78px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--white);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: 0;
}
.brand-mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 0.92rem;
  font-weight: 600;
}
.nav-links a {
  opacity: 0.78;
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.nav-links a:hover, .nav-links a:focus-visible {
  opacity: 1;
  transform: translateY(-1px);
}
.nav-links .nav-cta {
  opacity: 1;
  padding: 10px 16px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.1);
}
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 5px auto;
  background: currentColor;
  transition: transform 0.25s ease;
}
.nav-toggle.is-open span:first-child { transform: translateY(3.5px) rotate(45deg); }
.nav-toggle.is-open span:last-child { transform: translateY(-3.5px) rotate(-45deg); }

.section-shell {
  width: min(calc(100% - 32px), var(--max));
  margin: 0 auto;
}
.section { padding: 112px 0; }
.section-dark {
  position: relative;
  overflow: hidden;
  background: var(--black);
  color: var(--white);
}
.section-light {
  background: var(--white);
  color: var(--ink);
}
.hero {
  min-height: 100svh;
  display: grid;
  align-items: center;
  padding: 120px 0 70px;
}
.hero-bg, .hero-overlay, .cta-section > img, .cta-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.hero-bg, .cta-section > img {
  object-fit: cover;
  filter: saturate(0.82) contrast(1.04);
}
.hero-overlay {
  background:
    linear-gradient(90deg, rgba(0, 0, 0, 0.88) 0%, rgba(0, 0, 0, 0.68) 42%, rgba(0, 0, 0, 0.36) 100%),
    radial-gradient(circle at 70% 20%, rgba(29, 78, 216, 0.24), transparent 34%);
}
.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(320px, 0.72fr);
  gap: 58px;
  align-items: end;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--accent-soft);
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.section-light .eyebrow { color: var(--accent); }
.eyebrow::before {
  content: "";
  width: 34px;
  height: 1px;
  background: currentColor;
}
h1, h2, h3, p { margin-top: 0; }
h1 {
  max-width: 760px;
  margin-bottom: 24px;
  font-size: clamp(3rem, 8vw, 7.6rem);
  line-height: 0.91;
  letter-spacing: 0;
}
h2 {
  margin-bottom: 18px;
  font-size: clamp(2.2rem, 4.2vw, 4.7rem);
  line-height: 1;
  letter-spacing: 0;
}
h3 { font-size: 1.24rem; line-height: 1.2; }
.hero-copy p, .section-heading p, .about-copy p, .cta-content p {
  max-width: 650px;
  color: rgba(255, 255, 255, 0.72);
  font-size: clamp(1rem, 1.8vw, 1.18rem);
}
.section-light .section-heading p, .about-copy p { color: var(--muted); }
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}
.button {
  display: inline-flex;
  min-height: 50px;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border-radius: 8px;
  font-weight: 800;
  transition: transform 0.22s ease, background 0.22s ease, color 0.22s ease, border-color 0.22s ease;
}
.button:hover, .button:focus-visible { transform: translateY(-3px); }
.button-primary { background: var(--white); color: var(--black); }
.button-primary:hover, .button-primary:focus-visible { background: var(--accent-soft); }
.button-ghost {
  border: 1px solid rgba(255, 255, 255, 0.26);
  color: var(--white);
}
.button-ghost:hover, .button-ghost:focus-visible {
  border-color: rgba(255, 255, 255, 0.62);
  background: rgba(255, 255, 255, 0.09);
}

.hero-panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(18px);
  box-shadow: 0 30px 100px rgba(0, 0, 0, 0.42);
}
.hero-panel img {
  width: 100%;
  aspect-ratio: 1.35;
  object-fit: cover;
}
.metric-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--line);
}
.metric-row div {
  padding: 24px;
  background: rgba(0, 0, 0, 0.42);
}
.metric-row strong {
  display: block;
  font-size: 2rem;
  line-height: 1;
}
.metric-row span {
  display: block;
  margin-top: 8px;
  color: rgba(255, 255, 255, 0.66);
  font-size: 0.88rem;
}
.section-heading {
  display: grid;
  gap: 14px;
  margin-bottom: 48px;
}
.section-heading h2 { max-width: 860px; }
.section-heading.split {
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.42fr);
  align-items: end;
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}
.service-card, .testimonial-card {
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  overflow: hidden;
  background: #fff;
  transition: transform 0.28s var(--ease), box-shadow 0.28s var(--ease), border-color 0.28s ease;
}
.service-card:hover, .testimonial-card:hover {
  transform: translateY(-8px);
  border-color: rgba(29, 78, 216, 0.24);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.1);
}
.service-card img {
  width: 100%;
  aspect-ratio: 1.1;
  object-fit: cover;
}
.card-content { padding: 24px; }
.service-icon {
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  margin-bottom: 22px;
  border-radius: 8px;
  background: var(--black);
  color: var(--white);
  font-size: 0.8rem;
  font-weight: 800;
}
.service-card p, .testimonial-card span, .footer p { color: var(--muted); }
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}
.project-card {
  position: relative;
  min-height: 430px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #111;
}
.project-card:nth-child(1), .project-card:nth-child(4) { grid-column: span 2; }
.project-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.82;
  transition: transform 0.6s var(--ease), opacity 0.4s ease;
}
.project-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 35%, rgba(0, 0, 0, 0.82));
}
.project-card div {
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: 24px;
  z-index: 1;
  transition: transform 0.28s var(--ease);
}
.project-card span {
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
}
.project-card h3 {
  margin: 8px 0 0;
  color: #fff;
  font-size: 1.45rem;
}
.project-card:hover img {
  transform: scale(1.06);
  opacity: 1;
}
.project-card:hover div { transform: translateY(-6px); }
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1fr);
  gap: 58px;
  align-items: center;
}
.about-image { position: relative; }
.about-image::after {
  content: "";
  position: absolute;
  right: -18px;
  bottom: -18px;
  width: 46%;
  height: 46%;
  border: 1px solid rgba(29, 78, 216, 0.32);
  border-radius: 8px;
  z-index: 0;
}
.about-image img {
  position: relative;
  z-index: 1;
  width: 100%;
  aspect-ratio: 0.86;
  object-fit: cover;
  border-radius: 8px;
  filter: saturate(0.9);
}
.about-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: 38px;
  background: var(--line-dark);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius);
  overflow: hidden;
}
.about-stats div {
  padding: 22px;
  background: #fff;
}
.about-stats strong {
  display: block;
  font-size: 2rem;
  line-height: 1;
}
.about-stats span {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 0.88rem;
}

.testimonials { padding-top: 0; }
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.testimonial-card { padding: 28px; }
.testimonial-card img {
  width: 64px;
  height: 64px;
  margin-bottom: 30px;
  border-radius: 50%;
  object-fit: cover;
}
.testimonial-card p {
  color: #20232b;
  font-size: 1.04rem;
}
.testimonial-card h3 { margin: 28px 0 2px; }
.contact-section {
  position: relative;
  overflow: hidden;
  padding: 110px 0;
}
.contact-bg,
.contact-overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.contact-bg {
  object-fit: cover;
  filter: saturate(0.78) contrast(1.06);
}
.contact-overlay {
  background:
    linear-gradient(100deg, rgba(0, 0, 0, 0.88), rgba(0, 0, 0, 0.7)),
    radial-gradient(circle at 85% 20%, rgba(29, 78, 216, 0.25), transparent 42%);
}
.contact-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 0.95fr);
  gap: 36px;
  align-items: start;
}
.contact-info h2 {
  margin: 14px 0 14px;
  max-width: 500px;
}
.contact-info p {
  max-width: 480px;
  color: rgba(255, 255, 255, 0.72);
}
.contact-line {
  width: 94px;
  height: 1px;
  margin: 30px 0 24px;
  background: linear-gradient(90deg, rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.18));
}
.contact-meta {
  display: grid;
  gap: 10px;
}
.contact-meta a {
  width: fit-content;
  color: #fff;
  font-size: 1.08rem;
  font-weight: 600;
  border-bottom: 1px solid rgba(255, 255, 255, 0.25);
  transition: border-color 0.2s ease, color 0.2s ease;
}
.contact-meta a:hover {
  color: var(--accent-soft);
  border-color: rgba(219, 231, 255, 0.6);
}
.contact-meta span {
  color: rgba(255, 255, 255, 0.68);
  font-size: 0.95rem;
}
.contact-form {
  display: grid;
  gap: 12px;
  padding: 28px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(16px);
}
.contact-form label {
  color: rgba(255, 255, 255, 0.82);
  font-size: 0.9rem;
  font-weight: 600;
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 14px 14px;
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 8px;
  background: rgba(0, 0, 0, 0.32);
  color: #fff;
  font: inherit;
  transition: border-color 0.24s ease, box-shadow 0.24s ease, background 0.24s ease;
}
.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: rgba(255, 255, 255, 0.44);
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: rgba(165, 188, 255, 0.9);
  box-shadow: 0 0 0 4px rgba(81, 123, 255, 0.18);
  background: rgba(0, 0, 0, 0.5);
}
.contact-form input.is-error,
.contact-form textarea.is-error {
  border-color: rgba(255, 110, 110, 0.85);
}
.contact-submit {
  margin-top: 8px;
  width: fit-content;
  min-width: 170px;
}
.contact-submit:hover {
  transform: translateY(-2px) scale(1.02);
}
.form-feedback {
  min-height: 24px;
  margin: 2px 0 0;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.9rem;
}
.form-feedback.is-success {
  color: #c0ffd8;
}
.form-feedback.is-error {
  color: #ffb3b3;
}
.footer {
  padding: 58px 0 28px;
  background: #050505;
  color: #fff;
}
.footer-grid,
.premium-footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(150px, 1fr));
  gap: 28px;
  align-items: start;
}
.footer-brand { margin-bottom: 18px; }
.footer p { max-width: 360px; }
.footer-brand-block p { margin-bottom: 22px; }
.footer-contact {
  display: grid;
  gap: 8px;
}
.footer-contact a {
  width: fit-content;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 600;
  border-bottom: 1px solid rgba(255, 255, 255, 0.22);
}
.footer-contact span {
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.92rem;
}
.footer-links {
  display: grid;
  gap: 12px;
  color: rgba(255, 255, 255, 0.72);
  font-weight: 600;
}
.footer-links h3 {
  margin: 0 0 6px;
  color: #fff;
  font-size: 0.98rem;
}
.footer-links a, .social-links a {
  transition: color 0.2s ease, transform 0.2s ease, opacity 0.2s ease;
}
.footer-links a:hover, .social-links a:hover {
  color: #fff;
  transform: translateY(-2px);
}
.social-links {
  display: flex;
  gap: 12px;
}
.social-links a {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  font-size: 0.76rem;
  font-weight: 800;
}
.copyright {
  margin-top: 42px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.88rem;
  display: grid;
  gap: 8px;
}
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal-left {
  transform: translateX(-26px);
}
.reveal-right {
  transform: translateX(26px);
}
.reveal.is-visible {
  opacity: 1;
  transform: translate(0, 0);
}

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

@media (max-width: 1020px) {
  .hero-grid, .about-grid, .section-heading.split, .contact-grid { grid-template-columns: 1fr; }
  .hero-panel { max-width: 620px; }
  .services-grid, .portfolio-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .premium-footer-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .project-card:nth-child(1), .project-card:nth-child(4) { grid-column: span 1; }
  .testimonial-grid { grid-template-columns: 1fr; }
}

@media (max-width: 740px) {
  .section-shell, .nav { width: min(calc(100% - 24px), var(--max)); }
  .nav { min-height: 68px; }
  .nav-toggle { display: block; }
  .nav-links {
    position: fixed;
    top: 72px;
    left: 12px;
    right: 12px;
    display: grid;
    gap: 4px;
    padding: 14px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 8px;
    background: rgba(0, 0, 0, 0.94);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-12px);
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0.25s ease;
  }
  .nav-links.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  .nav-links a {
    padding: 12px;
    border-radius: 8px;
  }
  .nav-links a:hover { background: rgba(255, 255, 255, 0.08); }
  .nav-links .nav-cta { text-align: center; }
  .hero {
    min-height: auto;
    padding: 116px 0 58px;
  }
  h1 { font-size: clamp(3rem, 17vw, 5rem); }
  h2 { font-size: clamp(2.1rem, 11vw, 3.5rem); }
  .section { padding: 78px 0; }
  .services-grid, .portfolio-grid, .about-stats, .footer-grid, .premium-footer-grid { grid-template-columns: 1fr; }
  .project-card { min-height: 330px; }
  .metric-row { grid-template-columns: 1fr; }
  .contact-section { padding: 84px 0; }
  .contact-form { padding: 22px; }
  .contact-submit { width: 100%; }
  .about-image::after {
    right: -8px;
    bottom: -8px;
  }
}