:root {
  --bg: #eceff4;
  --bg-soft: #e5e9f0;
  --panel: rgba(255, 255, 255, 0.82);
  --panel-strong: rgba(255, 255, 255, 0.94);
  --text: #2e3440;
  --text-soft: #4c566a;
  --accent: #5e81ac;
  --accent-strong: #88c0d0;
  --border: rgba(46, 52, 64, 0.12);
  color-scheme: light;
  --font-body: "Manrope", "Segoe UI", sans-serif;
  --font-display: "Fraunces", Georgia, serif;
  font-family: var(--font-body);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(136, 192, 208, 0.2), transparent 28%),
    radial-gradient(circle at top right, rgba(94, 129, 172, 0.12), transparent 24%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 100%);
}

a,
button {
  font: inherit;
}

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

button {
  border: 0;
  background: transparent;
  cursor: pointer;
}

.page-shell {
  width: min(1120px, calc(100vw - 2rem));
  margin: 0 auto;
  padding: 1.2rem 0 3rem;
}

.site-header,
.site-footer,
.hero,
.features,
.download-panel {
  display: grid;
  gap: 1rem;
}

.site-header,
.site-footer {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand img {
  width: 48px;
  height: 48px;
}

.header-actions,
.cta-row,
.hero-meta {
  display: flex;
  gap: 0.75rem;
  align-items: center;
  flex-wrap: wrap;
}

.header-link,
.site-footer a {
  color: var(--text-soft);
}

.lang-nav {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--panel);
}

.lang-link {
  padding: 0.42rem 0.72rem;
  border-radius: 999px;
  color: var(--text-soft);
  font-weight: 700;
}

.lang-link.active {
  background: var(--accent);
  color: #eceff4;
}

.hero {
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  align-items: center;
  gap: 2rem;
  padding: 2.2rem 0 2rem;
}

.eyebrow {
  margin: 0 0 0.4rem;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.75rem;
  font-weight: 700;
}

.hero h1,
.download-panel h2,
.feature-card h2 {
  margin: 0;
  font-family: var(--font-display);
  letter-spacing: -0.03em;
}

.hero h1 {
  font-size: clamp(2.6rem, 5vw, 4.8rem);
  line-height: 0.95;
}

.hero-text,
.feature-card p,
.download-panel p {
  color: var(--text-soft);
  line-height: 1.6;
}

.hero-text,
.feature-card p,
.download-panel p,
.header-link,
.site-footer,
.button,
.hero-meta li,
.download-card span {
  font-family: var(--font-body);
}

.hero-text {
  max-width: 46rem;
  margin: 1rem 0 0;
  font-size: 1.05rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.2rem;
  padding: 0.9rem 1.2rem;
  border-radius: 16px;
  font-weight: 700;
  transition: transform 140ms ease, opacity 140ms ease;
}

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

.button.primary {
  background: var(--accent);
  color: #eceff4;
}

.button.secondary {
  border: 1px solid var(--border);
  background: var(--panel);
}

.hero-meta {
  margin: 1.2rem 0 0;
  padding: 0;
  list-style: none;
  color: var(--text-soft);
}

.hero-meta li {
  padding: 0.55rem 0.8rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--panel);
}

.feature-card,
.download-panel,
.download-card {
  border: 1px solid var(--border);
  background: var(--panel);
}

.preview-frame {
  overflow: visible;
  border: 0;
  background: transparent;
}

.preview-bar {
  display: none;
}

.preview-frame img {
  display: block;
  width: 100%;
  height: auto;
  border: 0;
  border-radius: 0;
}

.features {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 0.5rem;
}

.feature-card,
.download-panel {
  border-radius: 24px;
}

.feature-card {
  padding: 1.25rem;
}

.feature-card p {
  margin: 0.75rem 0 0;
}

.download-panel {
  grid-template-columns: minmax(0, 1fr) 280px;
  align-items: center;
  gap: 1.4rem;
  margin-top: 1.4rem;
  padding: 1.4rem;
}

.download-card {
  display: grid;
  gap: 0.55rem;
  padding: 1.15rem;
  border-radius: 18px;
  background: var(--panel-strong);
}

.site-footer {
  margin-top: 1.6rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  color: var(--text-soft);
}

@media (max-width: 900px) {
  .hero,
  .features,
  .download-panel,
  .site-header,
  .site-footer {
    grid-template-columns: 1fr;
  }

  .site-header,
  .site-footer {
    justify-items: start;
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(100vw - 1rem, 100%);
    padding-top: 0.8rem;
  }

  .hero {
    padding-top: 1.2rem;
    gap: 1.4rem;
  }

  .hero h1 {
    font-size: 2.3rem;
  }

  .button,
  .download-card .button {
    width: 100%;
  }
}