:root {
  --bg: #031222;
  --panel: #071d32;
  --line: #174765;
  --cyan: #14c8ff;
  --blue: #0878ff;
  --text: #f4f9ff;
  --muted: #bad0e1;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family:
    Inter,
    Segoe UI,
    Arial,
    sans-serif;
  line-height: 1.5;
}
.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus {
  left: 1rem;
  top: 1rem;
  z-index: 20;
  background: #fff;
  color: #000;
  padding: 0.7rem;
}
.site-header {
  height: 84px;
  display: flex;
  align-items: center;
  gap: 28px;
  padding: 0 max(5vw, 24px);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  background: rgba(3, 18, 34, 0.96);
  z-index: 10;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  text-decoration: none;
  margin-right: auto;
  font-size: 1.15rem;
  font-weight: 700;
}
.brand img {
  width: 62px;
  height: 62px;
  object-fit: contain;
}
.brand b {
  color: var(--cyan);
}
nav {
  display: flex;
  gap: 24px;
  align-items: center;
}
nav a {
  color: #eaf5ff;
  text-decoration: none;
  font-weight: 600;
}
nav a:hover {
  color: var(--cyan);
}
.lang-button,
.menu-button {
  border: 1px solid var(--cyan);
  background: #06213a;
  color: #fff;
  border-radius: 10px;
  padding: 0.65rem 0.85rem;
  font-weight: 800;
}
.menu-button {
  display: none;
}
.header-download,
.primary,
.secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  padding: 0.9rem 1.35rem;
  font-weight: 800;
  text-decoration: none;
}
.header-download,
.primary {
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: #fff;
  box-shadow: 0 0 20px #0878ff55;
}
.secondary {
  border: 1px solid var(--cyan);
  color: #fff;
  background: #061a2d;
}
.hero {
  min-height: 620px;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 3rem;
  padding: 76px max(6vw, 32px);
  background:
    radial-gradient(circle at 72% 45%, #075ea766, transparent 33%),
    linear-gradient(115deg, #04172b, #020b16);
}
.eyebrow {
  color: var(--cyan);
  letter-spacing: 0.2em;
  font-weight: 800;
  font-size: 0.83rem;
}
.hero h1 {
  font-size: clamp(3rem, 5.2vw, 5.8rem);
  line-height: 0.92;
  margin: 0.45rem 0 1.4rem;
  max-width: 900px;
}
.hero h1 span,
.hero h1 strong {
  display: block;
}
.hero h1 strong {
  color: #0db8ff;
  text-shadow: 0 5px 25px #008cff55;
}
.lead {
  font-size: 1.18rem;
  color: #d4e5f1;
  max-width: 690px;
}
.hero-actions,
.download-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin: 26px 0;
}
.trust {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  color: #d2e4f2;
  font-weight: 600;
}
.hero-art {
  position: relative;
  min-height: 480px;
  display: grid;
  place-items: center;
}
.hero-art img {
  width: min(520px, 86%);
  filter: drop-shadow(0 0 32px #0099ff88);
  z-index: 2;
}
.hero-art p {
  position: absolute;
  right: 3%;
  bottom: 3%;
  font-size: 1.35rem;
  font-style: italic;
  color: #d8efff;
  transform: rotate(-5deg);
}
.orbit {
  position: absolute;
  z-index: 3;
  background: linear-gradient(145deg, #fff, #b9d9ff);
  color: #0754b9;
  border-radius: 12px;
  padding: 18px 14px;
  font-weight: 900;
  box-shadow: 0 0 22px #14c8ff;
}
.one {
  left: 7%;
  top: 13%;
  transform: rotate(-12deg);
}
.two {
  right: 4%;
  top: 23%;
  transform: rotate(12deg);
}
.three {
  right: 15%;
  bottom: 23%;
  color: #c42323;
}
.file-types {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 12px;
  padding: 14px max(5vw, 24px);
  border-block: 1px solid var(--line);
  background: #04172a;
}
.file-types article {
  min-height: 120px;
  border: 1px solid #31516a;
  border-radius: 15px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 12px;
  background: #071b2c;
}
.file-types b {
  color: var(--cyan);
  font-size: 1.7rem;
}
.file-types strong {
  font-size: 1rem;
}
.file-types small {
  color: var(--muted);
}
.section {
  padding: 84px max(6vw, 32px);
}
.feature-section {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: 60px;
  align-items: center;
  background: linear-gradient(120deg, #071a2c, #03101e);
}
.section h2 {
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 1.05;
  margin: 0.6rem 0 1rem;
}
.section p,
.section li {
  color: var(--muted);
  font-size: 1.08rem;
}
.feature-section ul {
  list-style: none;
  padding: 0;
}
.feature-section li {
  margin: 0.7rem 0;
}
.feature-section li:before {
  content: "✓";
  color: var(--cyan);
  margin-right: 0.7rem;
}
.app-window {
  border: 2px solid #3a789d;
  border-radius: 18px;
  overflow: hidden;
  display: grid;
  grid-template: 48px 1fr/150px 1fr;
  min-height: 410px;
  background: #06182a;
  box-shadow: 0 18px 50px #0008;
}
.window-bar {
  grid-column: 1/3;
  padding: 12px 18px;
  background: #09233a;
  display: flex;
  justify-content: space-between;
}
.window-bar i {
  font-style: normal;
}
.app-window aside {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding: 25px 18px;
  border-right: 1px solid #24455e;
  color: #d7ecfb;
}
.app-window aside b {
  font-size: 1.5rem;
  color: var(--cyan);
}
.window-main {
  padding: 32px;
}
.window-main h3 {
  font-size: 1.45rem;
  margin: 0;
}
.window-main p {
  font-size: 0.95rem;
}
.drives {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin: 28px 0;
}
.drives div {
  border: 1px solid #3275a2;
  border-radius: 10px;
  padding: 18px 10px;
  font-size: 0.82rem;
}
.drives progress {
  width: 100%;
  accent-color: var(--cyan);
}
.scan-buttons {
  display: flex;
  gap: 12px;
}
.scan-buttons button {
  padding: 12px 24px;
  border-radius: 9px;
  border: 1px solid var(--cyan);
  background: #0878e7;
  color: #fff;
  font-weight: 800;
}
.scan-buttons button + button {
  background: #071b2c;
}
.download-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 50px;
}
.download-section > div:first-child {
  max-width: 760px;
}
.support {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 50px;
  align-items: start;
  border-top: 1px solid var(--line);
  background: #06192b;
}
.support-options {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.support-options a,
.support-options button {
  color: var(--cyan);
  border: 1px solid var(--line);
  padding: 0.8rem 1.2rem;
  border-radius: 10px;
  text-decoration: none;
  background: #071d32;
  font: inherit;
  cursor: pointer;
}
.support-form {
  display: grid;
  gap: 15px;
  background: #071d32;
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 28px;
  text-align: left;
}
.support-form label {
  display: grid;
  gap: 7px;
  color: #e9f6ff;
  font-weight: 700;
}
.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 15px;
}
.support-form input,
.support-form select,
.support-form textarea {
  width: 100%;
  border: 1px solid #35617f;
  border-radius: 9px;
  background: #031222;
  color: #fff;
  padding: 12px;
  font: inherit;
}
.support-form textarea {
  resize: vertical;
}
.support-form small {
  color: var(--muted);
}
.submit-support {
  border: 0;
  cursor: pointer;
}
.submit-support:disabled {
  opacity: 0.6;
}
.form-status {
  min-height: 1.5em;
  margin: 0 !important;
}
.form-status.success {
  color: #65e6a7;
}
.form-status.error {
  color: #ff9292;
}
footer {
  display: flex;
  justify-content: space-between;
  padding: 28px max(6vw, 32px);
  border-top: 1px solid var(--line);
  color: var(--muted);
}
@media (max-width: 1000px) {
  .site-header {
    height: auto;
    min-height: 76px;
    flex-wrap: wrap;
    padding-block: 9px;
  }
  .menu-button {
    display: block;
  }
  .site-header nav {
    display: none;
    order: 5;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    padding: 10px 0;
  }
  .site-header nav.open {
    display: flex;
  }
  .header-download {
    display: none;
  }
  .hero,
  .feature-section {
    grid-template-columns: 1fr;
  }
  .hero {
    padding-top: 54px;
  }
  .file-types {
    grid-template-columns: repeat(3, 1fr);
  }
  .download-section {
    display: block;
  }
  .support {
    grid-template-columns: 1fr;
  }
  .hero-art {
    min-height: 380px;
  }
  .feature-section {
    gap: 34px;
  }
}
@media (max-width: 620px) {
  .brand span {
    display: none;
  }
  .hero {
    padding-inline: 20px;
  }
  .hero h1 {
    font-size: 2.8rem;
  }
  .file-types {
    grid-template-columns: repeat(2, 1fr);
  }
  .section {
    padding: 58px 20px;
  }
  .app-window {
    grid-template: 45px 1fr/1fr;
  }
  .app-window aside {
    display: none;
  }
  .window-bar {
    grid-column: 1;
  }
  .window-main {
    padding: 20px;
  }
  .drives {
    grid-template-columns: 1fr;
  }
  .field-row {
    grid-template-columns: 1fr;
  }
  .trust {
    gap: 10px;
  }
  .hero-art {
    min-height: 300px;
  }
  .orbit {
    display: none;
  }
  footer {
    flex-direction: column;
    gap: 8px;
  }
}