:root {
  --bg: #050816;
  --bg-alt: #0b1020;
  --accent: #4f46e5;
  --accent-soft: #6366f1;
  --text: #f9fafb;
  --muted: #9ca3af;
  --card: #111827;
  --danger: #ef4444;
  --radius: 14px;
  --shadow-soft: 0 18px 45px rgba(0,0,0,0.55);
  --shadow-light: 0 10px 30px rgba(15,23,42,0.7);
  --transition: 0.25s ease;
  --max-width: 1120px;
  --nav-height: 72px;
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
}

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

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  background: radial-gradient(circle at top, #111827 0, #020617 55%, #000 100%);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
}

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

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

main {
  padding: 0 1.5rem 3rem;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
}

/* NAVBAR */

.navbar {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(18px);
  background: linear-gradient(to bottom, rgba(15,23,42,0.95), rgba(15,23,42,0.75));
  border-bottom: 1px solid rgba(148,163,184,0.18);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0.75rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.brand-logo {
  width: 34px;
  height: 34px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 20%, #a855f7, #4f46e5 45%, #0ea5e9 100%);
  box-shadow: 0 0 0 1px rgba(148,163,184,0.35), 0 12px 30px rgba(15,23,42,0.9);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-name {
  font-weight: 650;
  letter-spacing: 0.04em;
  font-size: 0.95rem;
  text-transform: uppercase;
}

.brand-tagline {
  font-size: 0.75rem;
  color: var(--muted);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  font-size: 0.9rem;
}

.nav-links a {
  color: var(--muted);
  position: relative;
  padding-bottom: 0.15rem;
}

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

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.25rem;
  width: 0;
  height: 2px;
  background: linear-gradient(to right, #4f46e5, #0ea5e9);
  border-radius: 999px;
  transition: width var(--transition);
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-cta {
  padding: 0.45rem 0.95rem;
  border-radius: 999px;
  background: linear-gradient(135deg, #4f46e5, #0ea5e9);
  color: white;
  font-size: 0.85rem;
  font-weight: 550;
  box-shadow: 0 12px 30px rgba(37,99,235,0.55);
  border: none;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
}

.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 40px rgba(37,99,235,0.7);
  opacity: 0.96;
}

/* HERO */

.hero {
  padding-top: 2.5rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: 2.5rem;
  align-items: center;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  background: rgba(15,23,42,0.9);
  border: 1px solid rgba(148,163,184,0.4);
  color: var(--muted);
  font-size: 0.75rem;
  margin-bottom: 1rem;
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: #22c55e;
  box-shadow: 0 0 0 4px rgba(34,197,94,0.25);
}

.hero-title {
  font-size: clamp(2.2rem, 3vw + 1.2rem, 3.1rem);
  line-height: 1.1;
  margin: 0 0 1rem;
}

.hero-title span {
  background: linear-gradient(to right, #e5e7eb, #a5b4fc);
  -webkit-background-clip: text;
  color: transparent;
}

.hero-subtitle {
  color: var(--muted);
  font-size: 0.98rem;
  max-width: 32rem;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 1.8rem;
}

.btn-primary {
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
  border: none;
  background: linear-gradient(135deg, #4f46e5, #0ea5e9);
  color: white;
  font-weight: 550;
  font-size: 0.95rem;
  cursor: pointer;
  box-shadow: 0 18px 45px rgba(37,99,235,0.7);
  transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 22px 55px rgba(37,99,235,0.85);
  opacity: 0.97;
}

.btn-ghost {
  padding: 0.7rem 1.2rem;
  border-radius: 999px;
  border: 1px solid rgba(148,163,184,0.5);
  background: rgba(15,23,42,0.8);
  color: var(--muted);
  font-size: 0.9rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  transition: border-color var(--transition), color var(--transition), background var(--transition), transform var(--transition);
}

.btn-ghost:hover {
  border-color: rgba(129,140,248,0.9);
  color: #e5e7eb;
  background: rgba(15,23,42,0.95);
  transform: translateY(-1px);
}

.btn-ghost span.icon {
  font-size: 1.1rem;
}

/* HERO CARD */

.hero-card {
  background: radial-gradient(circle at top left, #1f2937 0, #020617 55%);
  border-radius: 24px;
  padding: 1.4rem 1.3rem;
  border: 1px solid rgba(148,163,184,0.35);
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
}

.hero-card::before {
  content: "";
  position: absolute;
  inset: -40%;
  background:
    radial-gradient(circle at 0 0, rgba(96,165,250,0.18), transparent 55%),
    radial-gradient(circle at 100% 0, rgba(129,140,248,0.18), transparent 55%);
  opacity: 0.9;
  pointer-events: none;
}

.hero-card-inner {
  position: relative;
  z-index: 1;
}

.hero-chip-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.hero-chip {
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
  background: rgba(15,23,42,0.9);
  border: 1px solid rgba(148,163,184,0.4);
  font-size: 0.75rem;
  color: var(--muted);
}

.hero-chip strong {
  color: #e5e7eb;
}

.hero-device {
  margin-top: 0.8rem;
  padding: 0.9rem;
  border-radius: 18px;
  background: radial-gradient(circle at top, #020617 0, #020617 45%, #000 100%);
  border: 1px solid rgba(148,163,184,0.35);
  box-shadow: var(--shadow-light);
}

.device-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.7rem;
}

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

.device-status {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  color: #22c55e;
}

.device-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 999px;
  background: #22c55e;
  box-shadow: 0 0 0 4px rgba(34,197,94,0.25);
}

.device-body {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 0.8rem;
  align-items: center;
}

.device-box {
  border-radius: 16px;
  background: linear-gradient(145deg, #020617, #020617);
  border: 1px solid rgba(148,163,184,0.35);
  padding: 0.8rem;
}

.device-box-title {
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 0.4rem;
}

.device-box-main {
  font-size: 0.9rem;
  font-weight: 550;
}

.device-box-main span {
  color: #a5b4fc;
}

.device-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.6rem;
}

.meta-pill {
  font-size: 0.7rem;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  background: rgba(15,23,42,0.9);
  border: 1px solid rgba(148,163,184,0.4);
  color: var(--muted);
}

/* SECTIONS */

.section {
  margin-top: 3.5rem;
}

.section-header {
  margin-bottom: 1.8rem;
}

.section-kicker {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--muted);
  margin-bottom: 0.4rem;
}

.section-title {
  font-size: 1.5rem;
  margin: 0 0 0.4rem;
}

.section-subtitle {
  font-size: 0.95rem;
  color: var(--muted);
  max-width: 32rem;
}

/* CARDS GRID */

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.4rem;
}

.card {
  background: radial-gradient(circle at top, #020617 0, #020617 55%, #000 100%);
  border-radius: var(--radius);
  border: 1px solid rgba(148,163,184,0.35);
  padding: 1.1rem 1.1rem 1.2rem;
  box-shadow: var(--shadow-light);
}

.card-title {
  font-size: 0.95rem;
  margin-bottom: 0.4rem;
}

.card-text {
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.5;
}

.card-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.75rem;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.card-tag-dot {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: #4f46e5;
}

/* PRICING */

.pricing-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
  gap: 1.5rem;
}

.pricing-card {
  background: radial-gradient(circle at top, #020617 0, #020617 55%, #000 100%);
  border-radius: 18px;
  border: 1px solid rgba(148,163,184,0.4);
  padding: 1.3rem 1.3rem 1.4rem;
  box-shadow: var(--shadow-soft);
}

.price {
  font-size: 1.6rem;
  font-weight: 650;
}

.price span {
  font-size: 0.9rem;
  color: var(--muted);
  font-weight: 400;
}

.pricing-list {
  list-style: none;
  padding: 0;
  margin: 0.9rem 0 0;
  font-size: 0.9rem;
  color: var(--muted);
}

.pricing-list li {
  display: flex;
  align-items: flex-start;
  gap: 0.45rem;
  margin-bottom: 0.4rem;
}

.pricing-list li::before {
  content: "•";
  color: #22c55e;
  margin-top: 0.1rem;
}

/* FOOTER */

.footer {
  border-top: 1px solid rgba(148,163,184,0.25);
  padding: 1.3rem 1.5rem 1.6rem;
  margin-top: 3rem;
  color: var(--muted);
  font-size: 0.8rem;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

/* RESPONSIVE */

@media (max-width: 960px) {
  .hero-grid {
    grid-template-columns: minmax(0, 1fr);
  }
  .cards-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .pricing-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 720px) {
  .nav-inner {
    padding-inline: 1rem;
  }
  main {
    padding-inline: 1rem;
  }
  .nav-links {
    display: none;
  }
  .hero {
    padding-top: 1.8rem;
  }
  .cards-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}