:root {
  --bg: #f3f5f8;
  --bg-soft: #ffffff;
  --surface: rgba(255, 255, 255, 0.78);
  --surface-strong: #ffffff;
  --text: #161b26;
  --text-soft: #4c5568;
  --line: rgba(15, 23, 42, 0.1);
  --primary: #0f89ff;
  --primary-strong: #006fdb;
  --shadow: 0 20px 50px rgba(15, 30, 56, 0.12);
  --header: rgba(255, 255, 255, 0.76);
  --logo-filter: contrast(1) brightness(1);
  color-scheme: light;
}

html[data-theme='dark'] {
  --bg: #0a101d;
  --bg-soft: #101b2f;
  --surface: rgba(16, 27, 47, 0.82);
  --surface-strong: #14213b;
  --text: #ecf2ff;
  --text-soft: #b8c6e6;
  --line: rgba(159, 180, 224, 0.22);
  --primary: #5cb0ff;
  --primary-strong: #7bc0ff;
  --shadow: 0 24px 55px rgba(0, 0, 0, 0.45);
  --header: rgba(10, 16, 29, 0.78);
  --logo-filter: brightness(1) contrast(1);
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Plus Jakarta Sans', sans-serif;
  background: radial-gradient(circle at 10% 10%, rgba(15, 137, 255, 0.15), transparent 35%),
    radial-gradient(circle at 85% 18%, rgba(25, 170, 255, 0.12), transparent 30%),
    var(--bg);
  color: var(--text);
  line-height: 1.55;
  overflow-x: hidden;
}

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

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

.container {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
}

.bg-orb {
  position: fixed;
  z-index: -2;
  border-radius: 999px;
  filter: blur(75px);
  pointer-events: none;
}

.bg-orb-a {
  width: 340px;
  height: 340px;
  top: -120px;
  left: -40px;
  background: rgba(15, 137, 255, 0.28);
}

.bg-orb-b {
  width: 380px;
  height: 380px;
  right: -140px;
  top: 40%;
  background: rgba(0, 165, 255, 0.2);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--line);
  background: var(--header);
  backdrop-filter: blur(14px);
}

.header-inner {
  min-height: 72px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  align-items: center;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  justify-self: start;
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.brand-logo {
  width: 200px;
  height: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  justify-self: center;
  gap: 1.2rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-soft);
}

.site-nav a {
  transition: color 0.2s ease;
}

.site-nav a:hover {
  color: var(--primary);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  justify-self: end;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface-strong);
  color: var(--text);
  font-weight: 600;
  width: 2.45rem;
  height: 2.45rem;
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.theme-toggle:hover {
  transform: translateY(-1px);
  border-color: var(--primary);
}

#themeIcon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

#themeIcon svg {
  width: 1rem;
  height: 1rem;
  stroke-width: 2.4;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.section {
  padding: 4.6rem 0;
}

.hero {
  min-height: calc(100vh - 72px);
  display: grid;
  place-items: center;
  text-align: center;
}

.hero-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-logo {
  width: clamp(140px, 22vw, 235px);
  margin: 0 auto 1rem;
  filter: drop-shadow(0 20px 30px rgba(15, 137, 255, 0.18));
}

.kicker {
  margin: 0;
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.34rem 0.5rem;
  border-radius: 12px;
  border: 1px solid rgba(90, 178, 255, 0.25);
  background: linear-gradient(180deg, rgba(16, 26, 45, 0.95), rgba(8, 15, 31, 0.96));
  box-shadow: 0 10px 24px rgba(3, 10, 22, 0.35);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  letter-spacing: 0.02em;
  text-transform: none;
}

.kicker-tag {
  border-radius: 7px;
  padding: 0.2rem 0.4rem;
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
  color: #7dd3fc;
  background: rgba(15, 137, 255, 0.14);
}

.kicker-flap {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 1.7rem;
  min-width: clamp(18ch, 30vw, 33ch);
  padding: 0.22rem 0.6rem;
  border-radius: 8px;
  border: 1px solid rgba(125, 211, 252, 0.22);
  background: rgba(2, 10, 24, 0.96);
  color: #bfdbfe;
  font-size: 0.79rem;
  font-weight: 700;
  text-align: left;
  transform-origin: center;
}

.kicker-flap::after {
  content: "";
  position: absolute;
  left: 0.45rem;
  right: 0.45rem;
  top: 50%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(125, 211, 252, 0.35), transparent);
}

.kicker-flap.is-flipping {
  animation: splitFlip 420ms cubic-bezier(0.2, 0.74, 0.28, 1);
}

h1,
h2,
h3 {
  margin: 0;
  font-family: 'Space Grotesk', sans-serif;
  line-height: 1.12;
}

h1 {
  margin-top: 0.8rem;
  font-size: clamp(2rem, 5.1vw, 4.1rem);
  max-width: 900px;
}

.hero-copy {
  margin-top: 1.05rem;
  margin-bottom: 1.65rem;
  color: var(--text-soft);
  max-width: 720px;
  font-size: clamp(1rem, 1.8vw, 1.15rem);
}

.btn-primary {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  border: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--primary), var(--primary-strong));
  color: #fff;
  font-weight: 700;
  padding: 0.82rem 1.35rem;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 12px 25px rgba(0, 120, 240, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 17px 28px rgba(0, 120, 240, 0.3);
}

.logos-section h2,
.services-section h2,
.contact-copy h2 {
  font-size: clamp(1.65rem, 2.5vw, 2.45rem);
}

.section-copy {
  margin-top: 0.8rem;
  margin-bottom: 1.35rem;
  color: var(--text-soft);
}

.logo-marquee {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--bg-soft);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.logo-track {
  width: max-content;
  display: flex;
  align-items: center;
  gap: 2.8rem;
  padding: 1.35rem 2rem;
  animation: marqueeMove 22s linear infinite;
}


.logo-item {
  width: clamp(90px, 10vw, 135px);
  min-width: clamp(90px, 10vw, 135px);
  height: 42px;
  display: grid;
  place-items: center;
}

.logo-item img {
  max-height: 36px;
  width: auto;
  opacity: 0.9;
  filter: var(--logo-filter);
}

.service-grid {
  margin-top: 1.4rem;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.service-card {
  border: 1px solid var(--line);
  border-radius: 18px;
  background: var(--surface);
  box-shadow: var(--shadow);
  padding: 1.2rem;
  backdrop-filter: blur(10px);
}

.service-card h3 {
  font-size: 1.1rem;
}

.service-card p {
  margin: 0.7rem 0 0;
  color: var(--text-soft);
}

.contact-wrap {
  border: 1px solid var(--line);
  border-radius: 26px;
  background: var(--surface-strong);
  box-shadow: var(--shadow);
  padding: clamp(1.3rem, 2.2vw, 2rem);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 1.5rem;
}

.contact-copy p {
  margin-top: 0.75rem;
  color: var(--text-soft);
}

.contact-form {
  display: grid;
  gap: 0.75rem;
}

.form-steps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.55rem;
}

.form-step {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.35rem 0.6rem;
  color: var(--text-soft);
  font-size: 0.8rem;
  font-weight: 600;
  background: var(--bg-soft);
  white-space: nowrap;
}

.step-dot {
  width: 1.35rem;
  height: 1.35rem;
  border-radius: 999px;
  display: inline-grid;
  place-items: center;
  font-size: 0.72rem;
  border: 1px solid var(--line);
  background: var(--surface-strong);
}

.form-step.is-active {
  border-color: rgba(15, 137, 255, 0.45);
  color: var(--primary);
}

.form-step.is-complete {
  color: #06b06f;
  border-color: rgba(6, 176, 111, 0.38);
}

.form-step.is-active .step-dot,
.form-step.is-complete .step-dot {
  border-color: transparent;
  color: #fff;
  background: linear-gradient(90deg, var(--primary), var(--primary-strong));
}

.form-stage {
  display: none;
  gap: 0.75rem;
}

.form-stage.is-active {
  display: grid;
  animation: stepEnter 260ms ease;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.75rem;
}

.form-field {
  display: grid;
  gap: 0.45rem;
}

.contact-form label {
  font-size: 0.92rem;
  font-weight: 600;
}

.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--bg-soft);
  color: var(--text);
  font: inherit;
  padding: 0.78rem 0.9rem;
}

.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
  outline: 2px solid rgba(15, 137, 255, 0.36);
  border-color: transparent;
}

.check-field {
  display: inline-flex;
  align-items: flex-start;
  gap: 0.55rem;
  color: var(--text-soft);
}

.check-field input {
  width: auto;
  margin-top: 0.18rem;
  accent-color: var(--primary);
}

.check-field span {
  font-size: 0.88rem;
}

.form-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.btn-secondary {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface-strong);
  color: var(--text);
  font-weight: 700;
  padding: 0.82rem 1.35rem;
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.btn-secondary:hover {
  transform: translateY(-2px);
  border-color: var(--primary);
}

.btn-primary:disabled {
  cursor: wait;
  opacity: 0.78;
  transform: none;
}

.form-status {
  min-height: 1.2rem;
  margin: 0;
  font-size: 0.9rem;
  font-weight: 600;
}

.form-status.is-success {
  color: #06b06f;
}

.form-status.is-error {
  color: #e5484d;
}

.form-note {
  margin: 0.2rem 0 0;
  color: var(--text-soft);
  font-size: 0.82rem;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 1.35rem 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  color: var(--text-soft);
  font-size: 0.92rem;
}

.footer-logo {
  width: 250px;
  height: auto;
}

.intro-splash {
  position: fixed;
  inset: 0;
  z-index: 999;
  display: grid;
  place-items: center;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.98), rgba(240, 245, 255, 0.96));
  transition: opacity 0.55s ease, visibility 0.55s ease;
}

html[data-theme='dark'] .intro-splash {
  background: radial-gradient(circle, rgba(11, 16, 31, 0.98), rgba(8, 12, 23, 0.97));
}

.intro-logo {
  width: min(34vw, 220px);
  animation: introPulse 1.45s ease-in-out infinite;
}

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

.parallax {
  --parallax-y: 0px;
  transform: translate3d(0, var(--parallax-y), 0);
  will-change: transform;
}

.reveal {
  --reveal-y: 22px;
  opacity: 0;
  transform: translate3d(0, calc(var(--reveal-y) + var(--parallax-y, 0px)), 0);
  transition: opacity 700ms ease, transform 700ms ease;
}

.reveal.is-visible {
  opacity: 1;
  --reveal-y: 0px;
}

@keyframes marqueeMove {
  from {
    transform: translateX(0);
  }

  to {
    transform: translateX(-50%);
  }
}

@keyframes introPulse {
  0% {
    rotate: 0deg;
    opacity: 1;
  }

  30% {
    rotate: 10deg;
    opacity: 0.92;
    transform: scale(1.06);
  }

  60% {
    rotate: -10deg;
    opacity: 0.95;
    transform: scale(1.10);
  }

  100% {
    rotate: 0deg;
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes splitFlip {
  0% {
    transform: rotateX(0deg);
    filter: brightness(1);
  }

  45% {
    transform: rotateX(92deg);
    filter: brightness(1.25);
  }

  60% {
    transform: rotateX(-14deg);
    filter: brightness(0.9);
  }

  100% {
    transform: rotateX(0deg);
    filter: brightness(1);
  }
}

@keyframes stepEnter {
  from {
    opacity: 0;
    transform: translateY(6px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Projects Carousel */
.carousel-wrapper {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 1rem;
  margin-top: 2rem;
}

.carousel-track {
  position: relative;
  overflow: hidden;
  border-radius: 20px;
  background: var(--bg-soft);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.carousel-slide {
  display: none;
  animation: slideEnter 500ms ease;
}

.carousel-slide.is-active {
  display: block;
}

.slide-content {
  display: grid;
  position: relative;
  min-height: clamp(340px, 46vw, 560px);
  border-radius: 16px;
  overflow: hidden;
  transition: transform 0.22s ease;
}

.slide-content::before {
  content: '';
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  z-index: 0;
}

.slide-content:hover {
  transform: scale(1.01);
}

.slide-image {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
}

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

.slide-content:hover .slide-image img {
  transform: scale(1.02);
}

.slide-info {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  position: absolute;
  bottom: clamp(0.8rem, 2.5vw, 1.8rem);
  left: clamp(0.8rem, 2.5vw, 1.8rem);
  z-index: 10;
  padding: 0.85rem 0.9rem;
  border-radius: 12px;
  background: rgba(16, 27, 47, 0.62);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(15, 137, 255, 0.2);
  max-width: min(440px, calc(100% - 1.6rem));
  text-align: left;
  transition: transform 0.25s ease, background 0.25s ease, border-color 0.25s ease;
}

.slide-content:hover .slide-info,
.slide-content:focus-visible .slide-info,
.slide-content:focus-within .slide-info {
  background: rgba(16, 27, 47, 0.82);
  border-color: rgba(15, 137, 255, 0.3);
  transform: translateY(-3px);
}

html[data-theme='light'] .slide-info {
  background: rgba(255, 255, 255, 0.78);
  border-color: rgba(15, 137, 255, 0.2);
}

html[data-theme='light'] .slide-content:hover .slide-info,
html[data-theme='light'] .slide-content:focus-visible .slide-info,
html[data-theme='light'] .slide-content:focus-within .slide-info {
  background: rgba(255, 255, 255, 0.92);
  border-color: rgba(15, 137, 255, 0.3);
}

.slide-info h3 {
  font-size: clamp(1rem, 2.1vw, 1.45rem);
  color: var(--text);
  margin: 0;
  max-width: 30ch;
}

.slide-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  color: var(--primary);
  font-weight: 600;
  margin-top: 0.25rem;
  width: fit-content;
  border-radius: 999px;
  border: 1px solid rgba(15, 137, 255, 0.3);
  background: rgba(15, 137, 255, 0.1);
  padding: 0.38rem 0.8rem;
  transition: gap 0.2s ease, color 0.2s ease;
}

.slide-content:hover .slide-link {
  gap: 0.8rem;
  color: var(--primary-strong);
}

.carousel-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface-strong);
  color: var(--text);
  cursor: pointer;
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.carousel-btn:hover {
  transform: translateY(-2px);
  border-color: var(--primary);
  color: var(--primary);
  box-shadow: 0 8px 16px rgba(15, 137, 255, 0.15);
}

.carousel-btn svg {
  width: 20px;
  height: 20px;
}

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 0.6rem;
  margin-top: 1.5rem;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: transparent;
  cursor: pointer;
  transition: all 0.3s ease;
}

.dot.is-active {
  background: var(--primary);
  border-color: var(--primary);
  width: 28px;
  border-radius: 999px;
}

@keyframes slideEnter {
  from {
    opacity: 0;
    transform: translateX(20px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@media (max-width: 930px) {
  .header-inner {
    min-height: auto;
    grid-template-columns: minmax(0, 1fr) auto;
    grid-template-areas:
      'brand toggle'
      'nav nav';
    gap: 0.65rem;
    padding: 0.45rem 0 0.55rem;
  }

  .brand {
    grid-area: brand;
  }

  .theme-toggle {
    grid-area: toggle;
  }

  .site-nav {
    grid-area: nav;
    display: flex;
    width: 100%;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.95rem;
    padding: 0.35rem 0 0.15rem;
    font-size: 0.86rem;
  }

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

  .contact-wrap {
    grid-template-columns: 1fr;
  }

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

  .carousel-wrapper {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }

  .carousel-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    z-index: 10;
    width: 42px;
    height: 42px;
    background: rgba(10, 18, 34, 0.78);
    color: #e7f1ff;
    border-color: rgba(102, 170, 255, 0.4);
  }

  html[data-theme='light'] .carousel-btn {
    background: rgba(255, 255, 255, 0.88);
    color: var(--text);
    border-color: rgba(15, 137, 255, 0.25);
  }

  .carousel-btn:hover {
    transform: translateY(calc(-50% - 2px));
  }

  .carousel-btn-prev {
    left: 0.65rem;
  }

  .carousel-btn-next {
    right: 0.65rem;
  }

  .slide-content {
    min-height: clamp(300px, 58vw, 430px);
  }

  .slide-info {
    max-width: min(92%, 440px);
    bottom: 0.9rem;
    left: 0.9rem;
    padding: 0.7rem 0.75rem;
  }

  .slide-info h3 {
    font-size: clamp(0.98rem, 3vw, 1.22rem);
  }
}

@media (max-width: 640px) {
  .header-inner {
    padding-top: 0.35rem;
  }

  .theme-toggle #themeText {
    display: none;
  }

  .section {
    padding: 3.6rem 0;
  }

  .logo-track {
    gap: 2rem;
    padding: 1.1rem 1.4rem;
  }

  .logo-item {
    width: 88px;
    min-width: 88px;
    height: 36px;
  }

  .logo-item img {
    max-height: 28px;
  }

  .form-steps {
    grid-template-columns: 1fr;
    gap: 0.4rem;
  }

  .form-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .form-actions .btn-primary,
  .form-actions .btn-secondary {
    width: 100%;
  }

  .slide-content {
    min-height: clamp(250px, 72vw, 320px);
  }

  .slide-info {
    max-width: min(92%, 340px);
    bottom: 0.8rem;
    left: 0.7rem;
    padding: 0.62rem 0.68rem;
    gap: 0.35rem;
  }

  .slide-info h3 {
    font-size: 0.92rem;
    line-height: 1.25;
  }

  .slide-link {
    font-size: 0.78rem;
    margin-top: 0.2rem;
    padding: 0.28rem 0.6rem;
  }

  .carousel-dots {
    margin-top: 1rem;
  }

  .dot {
    width: 9px;
    height: 9px;
  }

  .dot.is-active {
    width: 24px;
  }

  .parallax {
    transform: none !important;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .parallax {
    transform: none !important;
  }
}