:root {
  --navy: #0a1628;
  --navy-2: #0f1f38;
  --navy-3: #15294a;
  --teal: #00c2ff;
  --teal-dark: #0096cc;
  --white: #ffffff;
  --light: #eaf2fb;
  --muted: #8aa2bf;
  --header-h: 72px;
  --radius: 14px;
  --shadow: 0 20px 50px rgba(3, 12, 26, 0.55);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", sans-serif;
  background: var(--navy);
  color: var(--light);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

.container {
  width: min(1180px, 92%);
  margin-inline: auto;
}

h1, h2, h3 {
  font-family: "Oswald", sans-serif;
  line-height: 1.1;
}

/* ---------------- Header ---------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  background: transparent;
  transition: background 0.35s ease, box-shadow 0.35s ease;
}

.header.scrolled {
  background: rgba(10, 22, 40, 0.92);
  backdrop-filter: blur(12px);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

.nav {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav__logo {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-family: "Oswald", sans-serif;
  letter-spacing: 1px;
}

.nav__logo-name {
  font-size: 1.65rem;
  font-weight: 700;
  color: var(--white);
}

.nav__logo-name::after {
  content: "";
}

.nav__logo-text {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.35em;
  color: var(--teal);
}

.nav__menu {
  list-style: none;
  display: flex;
  gap: 2rem;
}

.nav__link {
  position: relative;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--light);
  padding: 6px 0;
  transition: color 0.25s;
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--teal);
  transition: width 0.25s ease;
}

.nav__link:hover,
.nav__link.active {
  color: var(--teal);
}

.nav__link:hover::after,
.nav__link.active::after {
  width: 100%;
}

.nav__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 6px;
}

.nav__toggle span {
  width: 26px;
  height: 2px;
  background: var(--white);
  display: block;
  transition: transform 0.3s, opacity 0.3s;
}

/* ---------------- Hero ---------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background-image: url("images/4541.jpg");
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  animation: heroZoom 18s ease-in-out infinite alternate;
}

@keyframes heroZoom {
  from { transform: scale(1.05) translateX(-1%); }
  to   { transform: scale(1.18) translateX(1%); }
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, rgba(10, 22, 40, 0.35) 0%, rgba(10, 22, 40, 0.82) 100%);
}

.hero__content {
  position: relative;
  z-index: 2;
  padding: 2rem;
  animation: fadeUp 1s ease both;
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.hero__subtitle {
  font-size: clamp(0.8rem, 1.4vw, 1rem);
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 1.2rem;
}

.hero__title {
  font-size: clamp(3.2rem, 11vw, 8rem);
  font-weight: 700;
  color: var(--white);
  text-shadow: 0 8px 40px rgba(0, 0, 0, 0.55);
  margin-bottom: 0.6rem;
  letter-spacing: 0.03em;
}

.hero__title span {
  color: var(--teal);
}

.hero__tagline {
  font-size: clamp(1rem, 2vw, 1.35rem);
  font-weight: 300;
  color: var(--light);
  margin-bottom: 2.4rem;
}

.hero__cta {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 0.9rem 2rem;
  font-family: "Oswald", sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  border-radius: 50px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.25s ease;
}

.btn--primary {
  background: var(--teal);
  color: var(--navy);
}

.btn--primary:hover {
  background: var(--teal-dark);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(0, 194, 255, 0.35);
}

.btn--outline {
  border-color: var(--white);
  color: var(--white);
  background: transparent;
}

.btn--outline:hover {
  background: var(--white);
  color: var(--navy);
  transform: translateY(-2px);
}

.btn--full {
  width: 100%;
  text-align: center;
}

.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
}

.hero__scroll-line {
  width: 1px;
  height: 50px;
  background: linear-gradient(var(--teal), transparent);
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* ---------------- Sections ---------------- */
section {
  padding: 6rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header__label {
  display: block;
  font-size: 0.8rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 0.6rem;
}

.section-header__title {
  font-size: clamp(2rem, 4.5vw, 3rem);
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

/* ---------------- About ---------------- */
.about {
  background: linear-gradient(180deg, var(--navy) 0%, var(--navy-2) 100%);
}

.about__grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 3rem;
  align-items: start;
}

.about__lead {
  font-size: 1.25rem;
  color: var(--white);
  margin-bottom: 1.2rem;
}

.about__content p {
  color: var(--muted);
  margin-bottom: 1rem;
}

.about__stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.stat {
  background: var(--navy-3);
  border: 1px solid rgba(0, 194, 255, 0.15);
  border-radius: var(--radius);
  padding: 1.5rem 1rem;
  text-align: center;
  transition: transform 0.3s, border-color 0.3s;
}

.stat:hover {
  transform: translateY(-4px);
  border-color: var(--teal);
}

.stat__number {
  display: block;
  font-family: "Oswald", sans-serif;
  font-size: 2rem;
  font-weight: 700;
  color: var(--teal);
}

.stat__label {
  display: block;
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 0.4rem;
}

/* ---------------- Models ---------------- */
.models {
  background: var(--navy-2);
}

.models__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.6rem;
}

.card {
  background: var(--navy-3);
  border: 1px solid rgba(0, 194, 255, 0.12);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s;
}

.card:hover {
  transform: translateY(-6px);
  border-color: var(--teal);
  box-shadow: var(--shadow);
}

.card__media {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

.card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.card:hover .card__media img {
  transform: scale(1.06);
}

.card__badge {
  position: absolute;
  top: 0.9rem;
  left: 0.9rem;
  background: var(--teal);
  color: var(--navy);
  font-family: "Oswald", sans-serif;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.3rem 0.8rem;
  border-radius: 50px;
}

.card__body {
  padding: 1.4rem;
}

.card__title {
  font-size: 1.25rem;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.card__desc {
  font-size: 0.92rem;
  color: var(--muted);
  margin-bottom: 0.9rem;
}

.card__specs {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.card__specs li {
  position: relative;
  padding-left: 1.2rem;
  font-size: 0.85rem;
  color: var(--light);
}

.card__specs li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--teal);
}

/* ---------------- Gallery ---------------- */
.gallery {
  background: linear-gradient(180deg, var(--navy-2) 0%, var(--navy) 100%);
}

.gallery__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 1.2rem;
}

.gallery__item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  aspect-ratio: 1 / 1;
  cursor: pointer;
}

.gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.gallery__item:hover img {
  transform: scale(1.08);
}

.gallery__item::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(10, 22, 40, 0.7));
  opacity: 0;
  transition: opacity 0.35s;
}

.gallery__item:hover::after {
  opacity: 1;
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(3, 10, 22, 0.94);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}

.lightbox.open {
  opacity: 1;
  visibility: visible;
}

.lightbox__img {
  max-width: 90vw;
  max-height: 85vh;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.lightbox__close {
  position: absolute;
  top: 1.5rem;
  right: 2rem;
  background: none;
  border: none;
  font-size: 2.5rem;
  color: var(--white);
  cursor: pointer;
  line-height: 1;
}

/* ---------------- Videos ---------------- */
.videos {
  background: var(--navy);
}

.videos__intro {
  text-align: center;
  color: var(--muted);
  max-width: 640px;
  margin: -1.5rem auto 2.5rem;
}

.videos__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.4rem;
}

.video {
  aspect-ratio: 16 / 9;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid rgba(0, 194, 255, 0.12);
}

.video iframe {
  width: 100%;
  height: 100%;
  border: 0;
  display: block;
}

.videos__links {
  text-align: center;
  margin-top: 2.5rem;
}

/* ---------------- Contact ---------------- */
.contact {
  background: var(--navy-2);
}

.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
}

.contact__info p {
  color: var(--muted);
  margin-bottom: 1.6rem;
}

.contact__channels {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.contact__channels a {
  display: inline-block;
  color: var(--light);
  border-bottom: 1px solid transparent;
  transition: color 0.25s, border-color 0.25s;
}

.contact__channels a:hover {
  color: var(--teal);
  border-bottom-color: var(--teal);
}

.contact__form {
  background: var(--navy-3);
  padding: 2rem;
  border-radius: var(--radius);
  border: 1px solid rgba(0, 194, 255, 0.12);
}

.form__group {
  margin-bottom: 1.2rem;
}

.form__group label {
  display: block;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.4rem;
}

.form__group input,
.form__group textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  background: var(--navy-2);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 8px;
  color: var(--white);
  font-family: "Inter", sans-serif;
  font-size: 0.95rem;
  transition: border-color 0.25s;
  resize: vertical;
}

.form__group input:focus,
.form__group textarea:focus {
  outline: none;
  border-color: var(--teal);
}

.form__note {
  margin-top: 0.9rem;
  font-size: 0.9rem;
  text-align: center;
  min-height: 1.2em;
}

.form__note.success {
  color: #4ade80;
}

.form__note.error {
  color: #f87171;
}

/* ---------------- Footer ---------------- */
.footer {
  background: var(--navy);
  border-top: 1px solid rgba(0, 194, 255, 0.12);
  padding: 3rem 0;
  text-align: center;
}

.footer__logo {
  font-family: "Oswald", sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.2em;
}

.footer__brand p {
  color: var(--muted);
  font-size: 0.85rem;
  margin-top: 0.5rem;
  margin-bottom: 1.6rem;
}

.footer__social {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 1.6rem;
}

.footer__social a {
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--light);
  border-bottom: 1px solid transparent;
  transition: color 0.25s, border-color 0.25s;
}

.footer__social a:hover {
  color: var(--teal);
  border-bottom-color: var(--teal);
}

.footer__copy {
  font-size: 0.8rem;
  color: var(--muted);
}

/* ---------------- Responsive ---------------- */
@media (max-width: 900px) {
  .about__grid,
  .contact__grid {
    grid-template-columns: 1fr;
  }

  .about__stats {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .nav__toggle {
    display: flex;
  }

  .nav__menu {
    position: fixed;
    top: var(--header-h);
    left: 0;
    width: 100%;
    background: var(--navy-2);
    flex-direction: column;
    align-items: center;
    gap: 0;
    padding: 1rem 0 1.4rem;
    transform: translateY(-120%);
    transition: transform 0.35s ease;
    box-shadow: var(--shadow);
    border-bottom: 1px solid rgba(0, 194, 255, 0.15);
  }

  .nav__menu.open {
    transform: translateY(0);
  }

  .nav__menu li {
    width: 100%;
    text-align: center;
  }

  .nav__link {
    display: block;
    padding: 0.9rem 0;
    font-size: 1rem;
  }

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

  .stat {
    display: flex;
    align-items: center;
    justify-content: space-between;
    text-align: left;
    padding: 1rem 1.4rem;
  }

  .stat__label {
    margin-top: 0;
  }
}

@media (max-width: 560px) {
  section {
    padding: 4rem 0;
  }

  .hero__tagline {
    font-size: 1rem;
  }

  .section-header__title {
    font-size: 1.7rem;
  }

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

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
  }

  html {
    scroll-behavior: auto;
  }

  .hero__bg {
    transform: none;
  }
}