:root {
  color-scheme: dark;
  --bg: #07111f;
  --bg-soft: #0d1728;
  --surface: rgba(13, 24, 42, 0.88);
  --surface-strong: rgba(16, 30, 52, 0.96);
  --surface-border: rgba(142, 177, 255, 0.16);
  --text: #f5f8ff;
  --muted: #9caaca;
  --accent: #6ea8ff;
  --accent-strong: #8b5cf6;
  --accent-soft: rgba(110, 168, 255, 0.14);
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.32);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --container: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "PingFang SC",
    "Helvetica Neue", Helvetica, Arial, sans-serif;
  background:
    radial-gradient(circle at top left, rgba(110, 168, 255, 0.16), transparent 30%),
    radial-gradient(circle at top right, rgba(139, 92, 246, 0.16), transparent 28%),
    linear-gradient(180deg, #081221 0%, #060d19 100%);
  color: var(--text);
  line-height: 1.6;
}

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

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

.container {
  width: min(calc(100% - 40px), var(--container));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(6, 13, 25, 0.72);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: 0.01em;
}

.brand-mark {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  box-shadow: 0 10px 24px rgba(110, 168, 255, 0.28);
}

.brand-text {
  font-size: 1.02rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
  color: var(--muted);
  font-size: 0.95rem;
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  padding: 4px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.lang-button {
  min-width: 42px;
  height: 34px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--muted);
  font: inherit;
  font-weight: 700;
  cursor: pointer;
}

.lang-button.is-active {
  background: rgba(110, 168, 255, 0.18);
  color: var(--text);
}

.button-nav-store {
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid rgba(110, 168, 255, 0.22);
  background: rgba(110, 168, 255, 0.1);
  color: #dce9ff;
}

.hero {
  padding: 76px 0 44px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.95fr);
  gap: 48px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  background: var(--accent-soft);
  border: 1px solid rgba(110, 168, 255, 0.22);
  color: #d8e7ff;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero h1,
.section-heading h2,
.cta-card h2 {
  margin: 18px 0 16px;
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.hero h1 {
  max-width: 11ch;
  font-size: clamp(2.7rem, 6vw, 4.8rem);
}

.hero-text,
.section-heading p,
.cta-card p,
.feature-card p,
.protocol-card p,
.workflow-card p,
.pro-card li,
.trust-grid span,
.site-footer p {
  color: var(--muted);
}

.hero-text {
  max-width: 60ch;
  font-size: 1.05rem;
}

.hero-actions,
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border-radius: 14px;
  font-weight: 700;
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}

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

.button-primary {
  background: linear-gradient(135deg, var(--accent), #7d8cff 58%, var(--accent-strong));
  color: #081221;
  box-shadow: 0 16px 30px rgba(110, 168, 255, 0.22);
}

.button-secondary {
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
}

.hero-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.download-note {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.hero-pills li {
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #d5def2;
  font-size: 0.94rem;
}

.hero-visual {
  position: relative;
  min-height: 620px;
}

.device {
  position: relative;
  width: min(100%, 430px);
  margin: 0 auto;
  padding: 16px;
  border-radius: 44px;
  background: linear-gradient(180deg, #1d2b44 0%, #10192a 100%);
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.device-notch {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 136px;
  height: 26px;
  border-radius: 999px;
  background: #060c15;
  z-index: 1;
}

.device-screen {
  min-height: 588px;
  padding: 42px 20px 20px;
  border-radius: 32px;
  background:
    linear-gradient(180deg, rgba(110, 168, 255, 0.12), transparent 24%),
    linear-gradient(180deg, #0d1627, #08101e);
}

.screen-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.screen-title {
  font-size: 1.15rem;
  font-weight: 700;
}

.screen-badge {
  padding: 7px 11px;
  border-radius: 999px;
  background: rgba(110, 168, 255, 0.16);
  border: 1px solid rgba(110, 168, 255, 0.2);
  color: #d8e6ff;
  font-size: 0.8rem;
}

.screen-card,
.feature-card,
.protocol-card,
.workflow-card,
.pro-card,
.cta-card {
  background: var(--surface);
  border: 1px solid var(--surface-border);
  box-shadow: var(--shadow);
}

.screen-card {
  padding: 16px;
  border-radius: 22px;
  margin-bottom: 14px;
}

.screen-card.compact {
  display: grid;
  gap: 12px;
}

.screen-card-title {
  font-size: 0.9rem;
  color: #d5def2;
  font-weight: 700;
  margin-bottom: 10px;
}

.screen-list {
  display: grid;
  gap: 10px;
}

.screen-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 12px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
  color: #dde6f9;
}

.screen-row span:last-child {
  color: var(--muted);
  font-size: 0.88rem;
}

.feature-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.feature-tags span {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(139, 92, 246, 0.16);
  color: #efe4ff;
  font-size: 0.88rem;
}

.mini-stat {
  padding: 12px 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.03);
}

.mini-stat strong,
.feature-card h3,
.protocol-name,
.workflow-card h3,
.pro-card h3,
.trust-grid strong,
.cta-card h2 {
  display: block;
  margin-bottom: 6px;
}

.floating-card {
  position: absolute;
  max-width: 230px;
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(8, 16, 30, 0.9);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.28);
}

.floating-card-left {
  left: 0;
  bottom: 120px;
}

.floating-card-right {
  right: 0;
  top: 82px;
}

.floating-label {
  display: block;
  margin-bottom: 6px;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 700;
}

.section {
  padding: 42px 0;
}

.section-alt {
  background: rgba(255, 255, 255, 0.02);
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.trust-strip {
  padding-top: 14px;
}

.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.trust-grid > div {
  padding: 22px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
}

.section-heading {
  max-width: 760px;
  margin-bottom: 28px;
}

.section-heading.narrow {
  max-width: 640px;
}

.section-heading h2,
.cta-card h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
}

.feature-grid,
.protocol-grid,
.workflow-grid,
.pro-grid {
  display: grid;
  gap: 20px;
}

.feature-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.protocol-layout,
.pro-layout {
  display: grid;
  gap: 28px;
}

.protocol-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

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

.pro-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.feature-card,
.protocol-card,
.workflow-card,
.pro-card {
  padding: 24px;
  border-radius: var(--radius-lg);
}

.feature-card ul,
.pro-card ul {
  margin: 14px 0 0;
  padding-left: 18px;
}

.feature-card li,
.pro-card li {
  margin-bottom: 8px;
}

.protocol-name {
  font-size: 1.04rem;
  font-weight: 700;
}

.workflow-step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(110, 168, 255, 0.18), rgba(139, 92, 246, 0.22));
  color: #dfe9ff;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.cta-section {
  padding-bottom: 70px;
}

.cta-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 32px;
  border-radius: var(--radius-xl);
  background:
    radial-gradient(circle at top right, rgba(110, 168, 255, 0.16), transparent 34%),
    linear-gradient(180deg, rgba(17, 29, 49, 0.96), rgba(10, 18, 32, 0.96));
}

.site-footer {
  padding: 0 0 40px;
}

.footer-content {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
  padding-top: 26px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 16px;
  color: var(--muted);
}

@media (max-width: 1080px) {
  .hero-grid,
  .protocol-layout,
  .pro-layout,
  .cta-card {
    grid-template-columns: 1fr;
    display: grid;
  }

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

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

  .floating-card-left {
    left: 18px;
    bottom: 24px;
  }

  .floating-card-right {
    right: 18px;
  }
}

@media (max-width: 760px) {
  .container {
    width: min(calc(100% - 28px), var(--container));
  }

  .nav {
    min-height: 64px;
    flex-wrap: wrap;
  }

  .nav-links {
    display: none;
  }

  .nav-actions {
    width: 100%;
    justify-content: space-between;
  }

  .hero {
    padding-top: 48px;
  }

  .hero-grid {
    gap: 32px;
  }

  .hero h1 {
    max-width: none;
  }

  .hero-visual {
    min-height: auto;
  }

  .feature-grid,
  .protocol-grid,
  .workflow-grid,
  .pro-grid {
    grid-template-columns: 1fr;
  }

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

  .device {
    width: 100%;
    max-width: 420px;
  }

  .floating-card {
    position: static;
    max-width: none;
    margin-top: 14px;
  }

  .cta-card {
    padding: 24px;
  }

  .footer-content {
    flex-direction: column;
  }
}