:root {
  color-scheme: light;
  --ink: #15131a;
  --muted: #5d5868;
  --bg: #f6f2ed;
  --card: #ffffff;
  --accent: #1f6bff;
  --accent-dark: #1148b8;
  --accent-soft: #e5eeff;
  --line: #ebe2d9;
  --shadow: 0 20px 50px rgba(20, 14, 30, 0.12);
  --radius: 22px;
  --font-display: "Fraunces", "Times New Roman", serif;
  --font-body: "Space Grotesk", "Helvetica", sans-serif;
}

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

body {
  font-family: var(--font-body);
  background: radial-gradient(circle at top left, #f6f7ff 0%, #f7f1eb 55%, #f0ebe6 100%);
  color: var(--ink);
  line-height: 1.6;
}

.gradient {
  position: fixed;
  inset: -20% -30% auto auto;
  width: 60vw;
  height: 60vw;
  background: radial-gradient(circle at center, rgba(31, 107, 255, 0.18), transparent 70%);
  filter: blur(12px);
  z-index: -1;
}

.site-header {
  padding: 28px 0 0;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 8vw;
}

.header-inner {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 24px;
  align-items: center;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
}

.site-nav {
  display: flex;
  gap: 22px;
  justify-content: center;
  align-items: center;
}

.site-nav a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 600;
  transition: color 0.25s ease;
}

.site-nav a:hover {
  color: var(--ink);
}

.header-actions {
  display: flex;
  gap: 16px;
  align-items: center;
}

.lang-switch {
  display: flex;
  align-items: center;
  background: var(--card);
  border-radius: 999px;
  padding: 4px 10px;
  box-shadow: var(--shadow);
}

.lang-select {
  border: none;
  background: transparent;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  appearance: none;
  padding-right: 18px;
  font-size: 0.95rem;
}

.lang-switch::after {
  content: "▾";
  color: var(--muted);
  margin-left: 8px;
  font-size: 0.8rem;
  pointer-events: none;
}

.nav-lang {
  display: none;
}

.menu-toggle {
  display: none;
  border: none;
  background: var(--card);
  padding: 8px 12px;
  border-radius: 12px;
  box-shadow: var(--shadow);
  cursor: pointer;
}

button {
  font-family: var(--font-body);
  border: none;
  cursor: pointer;
  border-radius: 999px;
  padding: 12px 22px;
  font-weight: 600;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

a:focus-visible,
button:focus-visible {
  outline: none;
  box-shadow: none;
}

.download-btn {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 12px 30px rgba(31, 107, 255, 0.35);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
}

.download-btn:hover {
  transform: translateY(-2px);
}

.ghost-btn {
  background: var(--card);
  color: var(--ink);
  border: 1px solid var(--line);
}

main {
  padding: 80px 0 90px;
  display: flex;
  flex-direction: column;
  gap: 90px;
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 48px;
  align-items: center;
}

.badge {
  display: inline-flex;
  padding: 6px 14px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent-dark);
  font-weight: 600;
  margin-bottom: 18px;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 3.2vw, 3.2rem);
  line-height: 1.1;
  margin-bottom: 12px;
}

.hero-sub {
  color: var(--accent-dark);
  font-weight: 600;
  margin-bottom: 8px;
}

.hero-lead {
  font-size: 1.1rem;
  color: var(--muted);
  margin-bottom: 18px;
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 18px;
  margin-bottom: 24px;
}

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

.hero-seo {
  margin-top: 14px;
  color: var(--muted);
  font-size: 0.95rem;
}

.meta-title {
  display: block;
  color: var(--muted);
  font-size: 0.85rem;
}

.meta-value {
  font-weight: 700;
  font-size: 1.05rem;
}

.hero-panel {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.panel-window {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.panel-bar {
  display: flex;
  gap: 6px;
  padding: 10px 14px;
  background: #f5f4f8;
}

.panel-bar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #d0c9d6;
}

.panel-content {
  padding: 20px;
  display: grid;
  gap: 16px;
}

.panel-video {
  padding: 0;
}

.panel-video video {
  width: 100%;
  height: 100%;
  display: block;
  border-radius: 0 0 var(--radius) var(--radius);
  object-fit: cover;
}

.panel-block {
  padding: 14px 16px;
  border-radius: 14px;
  background: #f8f4ef;
}

.panel-line {
  font-weight: 700;
  margin-bottom: 4px;
}

.panel-note {
  color: var(--muted);
  font-size: 0.9rem;
}

.panel-highlight {
  background: var(--ink);
  color: #fff;
  padding: 16px 20px;
  border-radius: 16px;
  font-weight: 600;
}

.section-title h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3vw, 2.8rem);
  margin-bottom: 12px;
}

.section-title p {
  color: var(--muted);
}

.feature-grid,
.case-grid,
.privacy-grid,
.support-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 22px;
  margin-top: 28px;
}

.feature-grid {
  grid-template-columns: repeat(2, minmax(260px, 1fr));
}

.case-grid {
  grid-template-columns: repeat(2, minmax(260px, 1fr));
}

.feature-card,
.case-card,
.privacy-card,
.support-card {
  background: var(--card);
  border-radius: 18px;
  border: 1px solid var(--line);
}

.feature-card {
  position: relative;
}

.feature-card,
.privacy-card,
.support-card {
  padding: 22px;
}

.feature-card {
  text-align: center;
}

.feature-card--stacked {
  display: grid;
  justify-items: center;
  gap: 10px;
}

.feature-icon-top {
  width: 52px;
  height: 52px;
  object-fit: contain;
}

.privacy-card--stacked {
  display: grid;
  justify-items: center;
  text-align: center;
  gap: 10px;
}

.privacy-icon-top {
  width: 52px;
  height: 52px;
  object-fit: contain;
}

.feature-card h3,
.case-card h3,
.privacy-card h3 {
  color: var(--accent-dark);
  margin-bottom: 12px;
}

.case-card {
  display: grid;
  gap: 14px;
  padding: 0;
  overflow: hidden;
}

.case-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  background: linear-gradient(135deg, #eff3ff, #f8f1ea);
  object-fit: cover;
  display: block;
}

.case-content {
  padding: 18px 22px 22px;
}

.support-card {
  text-decoration: none;
  color: var(--ink);
  font-weight: 600;
}

.cta {
  background: linear-gradient(120deg, #1f6bff 0%, #13234a 100%);
  color: #fff;
  padding: 50px;
  border-radius: var(--radius);
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  align-items: center;
  justify-content: space-between;
}

.cta button,
.cta .download-btn {
  background: #fff;
  color: #13234a;
}

.site-footer {
  padding: 30px 0 50px;
  border-top: 1px solid var(--line);
  color: var(--muted);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-links-inline {
  display: inline-flex;
  gap: 8px;
  align-items: center;
}

.footer-links-inline a {
  color: inherit;
  text-decoration: none;
  font-weight: 600;
}

.footer-links-inline a:hover {
  color: var(--ink);
}

@media (max-width: 900px) {
  .header-inner {
    grid-template-columns: 1fr auto;
  }

  .site-nav {
    position: absolute;
    top: 70px;
    right: max(8vw, 16px);
    background: var(--card);
    border-radius: 16px;
    padding: 16px;
    flex-direction: column;
    box-shadow: var(--shadow);
    display: none;
    align-items: flex-start;
  }

  .site-nav.open {
    display: flex;
  }

  .header-actions {
    display: none;
  }

  .nav-lang {
    display: flex;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .cta {
    padding: 40px;
  }
}

@media (max-width: 600px) {
  .feature-grid {
    grid-template-columns: 1fr;
  }

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

  .cta {
    padding: 32px;
  }

  .site-footer {
    flex-direction: column;
    gap: 12px;
    align-items: flex-start;
  }
}