:root {
  --bg: #071114;
  --bg-deep: #02080b;
  --surface: rgba(14, 24, 32, 0.95);
  --surface-strong: rgba(8, 16, 23, 0.98);
  --text: #f4f9fc;
  --muted: #9bb8c5;
  --accent: #5ce5b1;
  --accent-strong: #41d09a;
  --border: rgba(120, 162, 183, 0.18);
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

.hidden {
  display: none !important;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Noto Sans SC', sans-serif;
  background: radial-gradient(circle at top, rgba(30, 67, 86, 0.45), transparent 30%), linear-gradient(180deg, #061118 0%, #03080d 100%);
  color: var(--text);
}

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

button, .button {
  font-family: inherit;
}

.container {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(3, 10, 15, 0.88);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 0;
  position: relative;
}

.nav-preview {
  position: absolute;
  top: 0;
  left: 0;
  width: 280px;
  padding: 14px;
  border-radius: 20px;
  background: rgba(3, 10, 15, 0.96);
  border: 1px solid rgba(92, 229, 177, 0.18);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
  display: grid;
  place-items: center;
  z-index: 100;
}

.nav-preview img {
  width: 100%;
  border-radius: 16px;
  object-fit: contain;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 18px;
  text-decoration: none;
  color: var(--text);
}

.logo img {
  width: 220px;
  height: 65px;
  object-fit: contain;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 36px;
}

.nav-links a {
  color: #ffffff;
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 700;
  transition: color 0.2s ease;
}

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

.contact-preview {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  width: 220px;
  padding: 16px;
  border-radius: 22px;
  background: rgba(3, 10, 15, 0.96);
  border: 1px solid rgba(92, 229, 177, 0.18);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
  display: grid;
  gap: 12px;
  z-index: 100;
}

.contact-preview.hidden {
  display: none;
}

.contact-preview img {
  width: 100%;
  height: auto;
  border-radius: 18px;
  object-fit: cover;
}

.preview-label {
  color: var(--text);
  font-weight: 700;
  font-size: 0.95rem;
  text-align: center;
}

.hero-section {
  position: relative;
  width: 100%;
  min-height: 88vh;
  display: flex;
  align-items: center;
  padding: 96px 0 120px;
  background-image: url('1018-1920x1080.jpg');
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  background-color: #02080d;
  overflow: hidden;
}

.bg-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  z-index: 0;
}

.bg-video video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.18) 0%, rgba(0, 0, 0, 0.55) 100%), linear-gradient(135deg, rgba(0, 0, 0, 0.02), transparent 65%);
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

.eyebrow {
  display: inline-block;
  margin-bottom: 18px;
  color: var(--accent);
  font-weight: 700;
  font-size: 1.5rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.hero-content h1 {
  margin: 0;
  font-size: clamp(1.5rem, 2.5vw, 2.5rem);
  line-height: 0.96;
  letter-spacing: -0.05em;
}

.hero-content p {
  margin: 24px 0 32px;
  max-width: 680px;
  color: rgba(244, 249, 252, 0.88);
  font-size: 1rem;
  line-height: 1.9;
}

.hero-actions {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.hero-button-preview {
  position: absolute;
  top: calc(100% + 14px);
  left: 0;
  width: min(560px, 80vw);
  padding: 55px;
  border-radius: 22px;
  background: rgba(3, 10, 15, 0.96);
  border: 1px solid rgba(92, 229, 177, 0.18);
  box-shadow: var(--shadow);
  display: grid;
  place-items: center;
  z-index: 25;
}

.hero-button-preview img {
  width: 100%;
  border-radius: 18px;
  object-fit: contain;
  max-height: 280px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 26px;
  border-radius: 999px;
  text-decoration: none;
  transition: transform 0.2s ease, background-color 0.2s ease;
}

.button:hover {
  transform: translateY(-1px);
}

.primary {
  background: linear-gradient(135deg, #4df9c7, #2ebd96);
  color: #071114;
}

.secondary {
  border: 1px solid rgba(92, 229, 177, 0.32);
  color: var(--text);
  background: rgba(255,255,255,0.04);
}

.hero-details {
  margin-top: 42px;
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.hero-details div {
  padding: 20px 22px;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 18px;
  background: rgba(255,255,255,0.04);
}

.hero-details strong {
  display: block;
  font-size: 1.8rem;
  color: var(--accent);
  margin-bottom: 8px;
}

.section {
  padding: 84px 0;
  scroll-margin-top: 100px;
}

.section h2 {
  margin: 0 0 18px;
  font-size: clamp(2rem, 2.5vw, 2.8rem);
  letter-spacing: -0.04em;
  text-align: center;
}

.section p {
  margin: 0;
  color: var(--muted);
  line-height: 1.8;
  text-align: center;
}

.section-about .section-grid,
.section-contact .section-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 40px;
  align-items: start;
}

.feature-cards {
  display: grid;
  gap: 20px;
  margin-top: 36px;
}

.intro-previews {
  display: grid;
  gap: 18px;
  margin-top: 30px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.intro-column,
.about-right {
  display: grid;
  gap: 24px;
}

.about-intro-text {
  padding: 28px 24px;
  border-radius: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.about-intro-text p {
  margin: 0 0 14px;
  color: var(--muted);
  line-height: 1.9;
}

.about-intro-text p:last-child {
  margin-bottom: 0;
}

.preview-card {
  display: grid;
  gap: 14px;
  padding: 22px;
  border-radius: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  text-align: center;
}

.preview-card h3 {
  margin: 0;
  font-size: 1.1rem;
}

.preview-images {
  display: grid;
  gap: 10px;
}

.preview-images img,
.single-preview {
  width: 100%;
  border-radius: 18px;
  display: block;
}

.single-preview {
  max-height: 200px;
  object-fit: cover;
  cursor: zoom-in;
}

.intro-previews img {
  cursor: zoom-in;
}

.image-modal {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(0, 0, 0, 0.88);
  z-index: 1000;
  padding: 24px;
}

.image-modal.hidden {
  display: none;
}

.modal-content {
  position: relative;
  width: min(100%, 960px);
  max-height: 100%;
}

.image-modal img {
  width: 100%;
  max-height: 90vh;
  object-fit: contain;
  border-radius: 22px;
  box-shadow: var(--shadow);
  cursor: zoom-out;
}

.modal-close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  font-size: 1.4rem;
  cursor: pointer;
}

.feature-card {
  padding: 28px 24px;
  border-radius: 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.feature-card h3 {
  margin-top: 0;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
  margin-top: 40px;
}

.feature-box {
  padding: 28px 24px;
  border-radius: 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.feature-box h3 {
  margin-top: 0;
}

.section-heading {
  max-width: 680px;
  margin: 0 auto 32px;
  text-align: center;
}

.dino-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.dino-card {
  padding: 26px 22px;
  border-radius: 22px;
  background: rgba(12, 20, 29, 0.96);
  border: 1px solid rgba(94, 173, 142, 0.18);
  box-shadow: var(--shadow);
}

.section-gallery .gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: 32px;
}

.section-requirements .config-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 28px;
}

.config-card {
  padding: 26px 22px;
  border-radius: 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.offer-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 34px 36px;
  border-radius: 26px;
  background: linear-gradient(180deg, rgba(20, 58, 60, 0.96), rgba(8, 17, 25, 0.96));
  border: 1px solid rgba(92, 229, 177, 0.18);
  box-shadow: var(--shadow);
}

.offer-box > div:first-child {
  width: 100%;
  text-align: center;
}

.offer-tag {
  display: block;
  margin: 0 auto 24px;
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(92, 229, 177, 0.14);
  color: var(--accent);
  font-size: 0.95rem;
  font-weight: 700;
  text-align: center;
  width: fit-content;
  scroll-margin-top: 120px;
}

.offer-copy {
  justify-content: center;
}

.offer-box h2 {
  margin-bottom: 12px;
}

.offer-copy {
  display: flex;
  gap: 14px;
  align-items: center;
}

.offer-copy span {
  display: inline-flex;
  padding: 14px 22px;
  border-radius: 18px;
  background: rgba(255,255,255,0.08);
  color: var(--text);
  font-weight: 700;
}

button {
  border: none;
  color: var(--text);
  background: var(--accent);
  border-radius: 999px;
  cursor: pointer;
  padding: 14px 20px;
  transition: transform 0.2s ease, background-color 0.2s ease;
}

button:hover {
  transform: translateY(-1px);
  background: #38c49c;
}

.contact-info {
  display: grid;
  gap: 16px;
  margin-top: 24px;
}

.contact-info div {
  padding: 18px 20px;
  border-radius: 18px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.06);
}

.contact-info strong {
  display: block;
  margin-bottom: 6px;
  color: var(--text);
}

.contact-card,
.download-card {
  padding: 28px 24px;
  border-radius: 24px;
  background: var(--surface-strong);
  border: 1px solid rgba(92, 229, 177, 0.14);
  box-shadow: var(--shadow);
}

.contact-right {
  display: grid;
  gap: 24px;
}

.download-card p {
  margin: 0 0 22px;
  color: var(--muted);
  line-height: 1.8;
}

.button.primary {
  background: var(--accent);
  color: #071114;
}

.button.primary:hover {
  background: #3be5a7;
}

.qr-frame {
  margin: 24px 0;
  border-radius: 22px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.12);
  overflow: hidden;
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.04);
}

.contact-qr {
  width: 100%;
  display: block;
}

.qr-note {
  display: block;
  padding: 14px 16px;
  text-align: center;
  color: var(--accent);
  font-weight: 700;
  background: rgba(92, 229, 177, 0.08);
}

.site-footer {
  padding: 28px 0 44px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
  color: var(--muted);
  font-size: 0.95rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  margin-bottom: 28px;
}

.footer-about p {
  margin: 0;
  color: var(--text);
  line-height: 1.9;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
}

.footer-section h4 {
  margin: 0 0 14px;
  font-size: 1rem;
  color: var(--text);
}

.footer-section ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-section li {
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 0.95rem;
}

.footer-section li:last-child {
  margin-bottom: 0;
}

@media (max-width: 980px) {
  .hero-details,
  .feature-grid,
  .dino-grid,
  .section-gallery .gallery-grid,
  .section-requirements .config-grid,
  .section-about .section-grid,
  .section-contact .section-grid,
  .offer-box,
  .footer-grid,
  .footer-links {
    grid-template-columns: 1fr;
  }

  .hero-details {
    grid-template-columns: 1fr;
  }

  .intro-previews {
    grid-template-columns: 1fr;
  }

  .header-inner {
    flex-direction: column;
    align-items: stretch;
  }
}

@media (max-width: 720px) {
  .nav-links {
    justify-content: center;
    gap: 12px;
  }

  .hero-section {
    padding: 76px 0 96px;
  }

  .hero-content p {
    margin-bottom: 24px;
  }

  .feature-box,
  .config-card,
  .feature-card,
  .dino-card,
  .contact-card {
    padding: 22px;
  }
}