:root {
  --mova-green: #c1ff72;
  --mova-green-dim: rgba(193, 255, 114, 0.14);
  --mova-green-glow: rgba(193, 255, 114, 0.35);
  --mova-black: #000000;
  --mova-card: #0d0d0d;
  --mova-border: rgba(193, 255, 114, 0.18);
  --mova-text: #ffffff;
  --mova-muted: #a8a8a8;
  --mova-subtle: #6e6e6e;
  --radius-frame: 22px;
  --font-display: 'Sora', sans-serif;
  --font-body: 'Outfit', sans-serif;
  --header-h: 72px;
  --max: 1080px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  font-family: var(--font-body);
  background: var(--mova-black);
  color: var(--mova-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

button {
  font-family: inherit;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.92em;
  color: var(--mova-green);
  background: var(--mova-green-dim);
  padding: 0.12em 0.4em;
  border-radius: 6px;
}

.page-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(ellipse 90% 55% at 50% 18%, rgba(193, 255, 114, 0.08), transparent 55%),
    radial-gradient(ellipse 70% 40% at 50% 42%, rgba(255, 255, 255, 0.07), transparent 60%),
    linear-gradient(180deg, #0a0a0a 0%, #000 42%, #000 100%);
}

.page-bg::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 28%;
  height: 38%;
  background:
    linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.04) 45%, transparent),
    radial-gradient(ellipse 80% 55% at 50% 70%, rgba(180, 180, 180, 0.12), transparent 70%);
  mask-image: linear-gradient(180deg, transparent, #000 30%, #000 70%, transparent);
  opacity: 0.55;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: var(--header-h);
  padding: 0.9rem clamp(1.25rem, 4vw, 3rem);
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.brand {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

.brand-logo {
  display: block;
  height: 32px;
  width: auto;
}

.header-right {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 1.25rem;
  margin-left: auto;
}

.nav {
  display: none;
  align-items: center;
  gap: 1.35rem;
}

.nav-link {
  font-size: 0.82rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.78);
  transition: color 0.2s ease;
  white-space: nowrap;
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--mova-green);
}

.lang-menu {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.lang-trigger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
  color: rgba(255, 255, 255, 0.82);
  cursor: pointer;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.lang-trigger:hover,
.lang-menu:hover .lang-trigger,
.lang-menu.is-open .lang-trigger {
  color: var(--mova-green);
  border-color: rgba(193, 255, 114, 0.45);
  background: rgba(193, 255, 114, 0.08);
}

.lang-icon {
  display: block;
}

.lang-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 148px;
  padding: 0.35rem;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(12, 12, 12, 0.96);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.45);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity 0.16s ease, transform 0.16s ease, visibility 0.16s ease;
  z-index: 30;
}

.lang-menu:hover .lang-dropdown,
.lang-menu:focus-within .lang-dropdown,
.lang-menu.is-open .lang-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.lang-option {
  display: flex;
  width: 100%;
  align-items: center;
  appearance: none;
  border: 0;
  background: transparent;
  color: rgba(255, 255, 255, 0.78);
  font-size: 0.88rem;
  font-weight: 500;
  text-align: left;
  padding: 0.65rem 0.75rem;
  border-radius: 8px;
  cursor: pointer;
  transition: color 0.15s ease, background 0.15s ease;
}

.lang-option:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.06);
}

.lang-option.is-active {
  color: var(--mova-green);
  background: rgba(193, 255, 114, 0.08);
}

/* Hero */
.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(4.5rem, 12vw, 8.5rem) clamp(1.25rem, 4vw, 2rem) 4rem;
  text-align: center;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: 1.75rem;
  padding: 0.55rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--mova-border);
  background: rgba(193, 255, 114, 0.06);
  color: var(--mova-green);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  animation: fade-up 0.7s ease both;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--mova-green);
  box-shadow: 0 0 0 0 var(--mova-green-glow);
  animation: pulse 1.8s ease infinite;
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.85rem, 5.2vw, 3.35rem);
  line-height: 1.15;
  letter-spacing: 0.04em;
  color: var(--mova-green);
  text-wrap: balance;
  animation: fade-up 0.75s ease 0.08s both;
}

.hero-lead {
  max-width: 46rem;
  margin: 1.5rem auto 0;
  color: rgba(255, 255, 255, 0.92);
  font-size: clamp(1rem, 2.1vw, 1.12rem);
  animation: fade-up 0.75s ease 0.16s both;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.85rem;
  margin-top: 2.25rem;
  animation: fade-up 0.75s ease 0.24s both;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0.8rem 1.55rem;
  border-radius: 999px;
  font-family: var(--font-body);
  font-size: 0.84rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease,
    color 0.2s ease;
}

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

.btn-primary {
  background: rgba(20, 20, 20, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.22);
  color: #fff;
}

.btn-primary:hover {
  border-color: var(--mova-green);
  color: var(--mova-green);
}

.btn-ghost {
  background: transparent;
  border: 1px solid rgba(193, 255, 114, 0.35);
  color: var(--mova-green);
}

.btn-ghost:hover {
  background: var(--mova-green-dim);
}

/* Sections */
.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 2rem) 2.5rem;
}

.section-last {
  padding-bottom: 4.5rem;
}

.section-frame {
  padding: clamp(1.75rem, 4vw, 2.75rem);
  border-radius: var(--radius-frame);
  border: 1px solid var(--mova-border);
  background:
    linear-gradient(180deg, rgba(193, 255, 114, 0.07), transparent 28%),
    var(--mova-card);
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.4), 0 24px 60px rgba(0, 0, 0, 0.35);
}

.eyebrow {
  color: var(--mova-subtle);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.section-frame h2 {
  font-family: var(--font-display);
  font-size: clamp(1.35rem, 3vw, 1.85rem);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--mova-green);
}

.section-copy {
  margin-top: 0.9rem;
  max-width: 46rem;
  color: var(--mova-muted);
}

.download-panel {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-top: 1.75rem;
  padding: 1.25rem;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(0, 0, 0, 0.45);
}

.download-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.download-logo {
  display: block;
  height: 28px;
  width: auto;
}

.download-meta strong {
  display: block;
  font-size: 1.05rem;
}

.download-meta span {
  display: block;
  margin-top: 0.2rem;
  color: var(--mova-subtle);
  font-size: 0.9rem;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 1.75rem;
  z-index: 100;
  max-width: min(92vw, 420px);
  padding: 0.85rem 1.15rem;
  border-radius: 12px;
  border: 1px solid rgba(255, 107, 107, 0.35);
  background: rgba(28, 12, 12, 0.96);
  color: #ffd4d4;
  font-size: 0.92rem;
  font-weight: 500;
  text-align: center;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.4);
  transform: translate(-50%, 12px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
  pointer-events: none;
}

.toast.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, 0);
}

.steps {
  list-style: none;
  display: grid;
  gap: 1rem;
  margin-top: 1.75rem;
}

.step {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 1rem;
  padding: 1.15rem 1.2rem;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(0, 0, 0, 0.35);
}

.step-num {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--mova-green);
  line-height: 1.4;
}

.step h3 {
  font-size: 1.02rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.step p {
  color: var(--mova-muted);
  font-size: 0.95rem;
}

.feature-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1.75rem;
}

.feature {
  padding: 1.25rem 1.2rem;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(0, 0, 0, 0.35);
}

.feature h3 {
  color: var(--mova-green);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  margin-bottom: 0.45rem;
}

.feature p {
  color: var(--mova-muted);
  font-size: 0.95rem;
}

.notice {
  margin-top: 1.5rem;
  padding: 1.25rem 1.3rem;
  border-radius: 14px;
  border: 1px solid rgba(193, 255, 114, 0.28);
  background: rgba(193, 255, 114, 0.05);
}

.notice strong {
  display: block;
  color: var(--mova-green);
  margin-bottom: 0.65rem;
  letter-spacing: 0.04em;
}

.notice ul {
  padding-left: 1.15rem;
  color: var(--mova-muted);
}

.notice li + li {
  margin-top: 0.35rem;
}

.doc-back {
  display: inline-flex;
  margin-bottom: 1.5rem;
  color: var(--mova-green);
  font-size: 0.9rem;
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(193, 255, 114, 0.55);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(193, 255, 114, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(193, 255, 114, 0);
  }
}

@media (min-width: 860px) {
  .nav {
    display: flex;
  }

  .download-panel {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }

  .feature-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 859px) {
  .brand-logo {
    height: 28px;
  }
}