:root {
  --bg: #0e1016;
  --bg-soft: #171a24;
  --panel: rgba(24, 28, 40, 0.88);
  --panel-border: rgba(118, 131, 182, 0.22);
  --text: #f4f6fb;
  --muted: #b1b8cf;
  --accent: #69c6ff;
  --accent-2: #875dff;
  --accent-3: #ff6fd8;
  --line: rgba(255, 255, 255, 0.08);
  --shadow: 0 30px 60px rgba(0, 0, 0, 0.28);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --max: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Segoe UI", Arial, sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 18% 18%, rgba(75, 115, 255, 0.2), transparent 34%),
    radial-gradient(circle at 78% 26%, rgba(194, 84, 255, 0.14), transparent 30%),
    radial-gradient(circle at 62% 72%, rgba(67, 199, 255, 0.12), transparent 28%),
    linear-gradient(180deg, #0d0f15 0%, #10131c 100%);
  min-height: 100vh;
}

a {
  color: inherit;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: rgba(10, 12, 18, 0.74);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.site-header__inner {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 78px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
}

.brand__mark {
  width: 42px;
  height: 42px;
  object-fit: contain;
  filter: drop-shadow(0 8px 14px rgba(0, 0, 0, 0.18));
}

.brand__text {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.brand__badge {
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid rgba(126, 92, 255, 0.35);
  background: linear-gradient(135deg, rgba(90, 65, 215, 0.86), rgba(64, 114, 255, 0.3));
  font-size: 0.78rem;
  letter-spacing: 0.12em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.site-nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.site-nav-toggle__bars {
  display: grid;
  gap: 4px;
}

.site-nav-toggle__bars span {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
}

.site-nav a {
  padding: 11px 14px;
  border-radius: 999px;
  color: var(--muted);
  text-decoration: none;
  transition: background 140ms ease, color 140ms ease;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.hero {
  padding: 86px 0 38px;
}

.hero__layout {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.8fr);
  gap: 30px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  color: #d9def2;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  text-transform: uppercase;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
}

.hero h1,
.page-hero h1 {
  margin: 18px 0 16px;
  font-size: clamp(3rem, 7vw, 5.3rem);
  line-height: 0.98;
}

.hero p,
.page-hero p {
  margin: 0;
  max-width: 760px;
  color: var(--muted);
  font-size: 1.18rem;
  line-height: 1.6;
}

.hero__actions {
  margin-top: 28px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 22px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 700;
  border: 1px solid transparent;
  transition: transform 140ms ease, box-shadow 140ms ease, background 140ms ease;
}

.button__icon {
  width: 20px;
  height: 20px;
  margin-right: 10px;
  flex: 0 0 auto;
}

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

.button--primary {
  color: #fff;
  background: linear-gradient(135deg, #4fb6ff 0%, #8b5dff 100%);
  box-shadow: 0 16px 36px rgba(78, 127, 255, 0.22);
}

.button--secondary {
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
}

.hero-card,
.section-card,
.content-card {
  border: 1px solid var(--panel-border);
  border-radius: var(--radius-lg);
  background: var(--panel);
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 28px;
}

.hero-card__grid {
  display: grid;
  gap: 14px;
}

.hero-card__item {
  padding: 16px 18px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(255, 255, 255, 0.02);
}

.hero-card__item strong {
  display: block;
  margin-bottom: 6px;
  font-size: 1rem;
}

.hero-card__item span {
  color: var(--muted);
  line-height: 1.5;
}

.section {
  padding: 28px 0;
}

.section-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.section-card {
  padding: 24px;
}

.section-card h3 {
  margin: 0 0 10px;
  font-size: 1.25rem;
}

.section-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.page-hero {
  padding: 72px 0 18px;
}

.content-stack {
  display: grid;
  gap: 18px;
  padding-bottom: 64px;
}

.content-card {
  padding: 28px;
}

.content-card h2 {
  margin: 0 0 12px;
  font-size: 1.5rem;
}

.content-card h3 {
  margin: 22px 0 10px;
  font-size: 1.08rem;
}

.content-card p,
.content-card li {
  color: var(--muted);
  line-height: 1.7;
}

.content-card ul {
  margin: 10px 0 0;
  padding-left: 20px;
}

.split {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.download-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-top: 18px;
}

.download-card {
  padding: 22px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
}

.download-card h3 {
  margin: 0 0 10px;
  font-size: 1.18rem;
}

.download-card p {
  margin: 0 0 16px;
  color: var(--muted);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
}

.pricing-card {
  padding: 28px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--panel-border);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02)),
    var(--panel);
  box-shadow: var(--shadow);
}

.pricing-card--core {
  box-shadow:
    0 30px 60px rgba(0, 0, 0, 0.28),
    0 0 0 1px rgba(105, 198, 255, 0.16),
    0 0 34px rgba(105, 198, 255, 0.14);
}

.pricing-card--elite {
  box-shadow:
    0 30px 60px rgba(0, 0, 0, 0.28),
    0 0 0 1px rgba(135, 93, 255, 0.18),
    0 0 36px rgba(135, 93, 255, 0.18);
}

.pricing-card__eyebrow {
  display: inline-flex;
  padding: 7px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: #e2e6f7;
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.pricing-card h2 {
  margin: 20px 0 10px;
  font-size: clamp(2.4rem, 6vw, 4rem);
  line-height: 1;
}

.pricing-card h2 span {
  font-size: 0.48em;
  color: var(--muted);
  font-weight: 600;
  margin-left: 6px;
}

.pricing-card__sub {
  margin: 0 0 20px;
  color: var(--muted);
  font-size: 1rem;
}

.pricing-list {
  margin: 0;
  padding-left: 20px;
  display: grid;
  gap: 10px;
}

.pricing-card__actions {
  margin-top: 24px;
}

.site-footer {
  padding: 34px 0 54px;
  color: rgba(209, 215, 236, 0.72);
}

.site-footer__inner {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  border-top: 1px solid var(--line);
  padding-top: 22px;
}

.site-footer nav {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.site-footer nav a {
  text-decoration: none;
  color: inherit;
}

.manage-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

.manage-stat {
  padding: 18px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
}

.manage-stat__label {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.manage-stat__value {
  display: block;
  font-size: 1.08rem;
}

.manage-devices {
  display: grid;
  gap: 14px;
}

.manage-device {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(255, 255, 255, 0.03);
}

.manage-device__body {
  display: grid;
  gap: 6px;
}

.manage-device__body span,
.manage-empty {
  color: var(--muted);
}

.manage-device__button {
  min-width: 150px;
}

@media (max-width: 1040px) {
  .hero__layout,
  .section-grid,
  .split,
  .download-grid,
  .pricing-grid,
  .manage-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .site-header__inner {
    min-height: 72px;
    width: min(calc(100% - 24px), var(--max));
    position: relative;
  }

  .site-shell {
    width: min(calc(100% - 24px), var(--max));
  }

  .brand__text {
    font-size: 1.3rem;
  }

  .site-nav-toggle {
    display: inline-flex;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    min-width: 220px;
    padding: 12px;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
    border-radius: 18px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(10, 12, 18, 0.96);
    box-shadow: var(--shadow);
  }

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

  .site-nav a {
    width: 100%;
    text-align: left;
  }

  .hero {
    padding-top: 54px;
  }

  .content-card,
  .hero-card,
  .section-card {
    padding: 20px;
  }

  .manage-device {
    flex-direction: column;
    align-items: flex-start;
  }

  .manage-device__button {
    width: 100%;
  }
}