:root {
  --bg: #0d111a;
  --surface: #151c28;
  --surface-alt: #101621;
  --text: #f2f4ff;
  --muted: #b4bdd9;
  --primary: #5865f2;
  --accent: #44d7b6;
  --shadow: 0 20px 50px rgba(5, 8, 18, 0.4);
  --radius: 16px;
  --font-title: "Space Grotesk", sans-serif;
  --font-body: "Plus Jakarta Sans", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
}

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

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

[hidden] { display: none !important; }

.container {
  width: min(1080px, 92vw);
  margin: 0 auto;
}

.bg-gradient {
  position: fixed;
  inset: 0;
  background: radial-gradient(circle at 15% 10%, rgba(88, 101, 242, 0.18), transparent 40%),
    radial-gradient(circle at 80% 18%, rgba(68, 215, 182, 0.14), transparent 45%);
  z-index: -2;
}

.bg-grid {
  position: fixed;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 120px 120px;
  opacity: 0.18;
  z-index: -1;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  padding: 14px 0;
  backdrop-filter: blur(16px);
  background: rgba(10, 14, 24, 0.9);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.header-inner {
  display: grid;
  grid-template-columns: auto 1fr auto auto;
  align-items: center;
  gap: 18px;
}

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

.logo {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  overflow: hidden;
}

.logo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.brand-name {
  font-family: var(--font-title);
  font-weight: 600;
  font-size: 18px;
}

.navbar {
  padding: 0;
}

.navbar .nav-link {
  color: var(--muted);
  font-weight: 500;
  padding: 0.25rem 0.5rem;
}

.navbar .nav-link:hover,
.navbar .nav-link:focus {
  color: var(--text);
}

.navbar-toggler {
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  padding: 0;
}

.navbar-toggler-icon {
  width: 20px;
  height: 2px;
  background: var(--text);
  box-shadow: 0 -6px 0 var(--text), 0 6px 0 var(--text);
  border-radius: 999px;
}

.hero {
  padding: 80px 0 60px;
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 36px;
  align-items: center;
}

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

h1 {
  font-family: var(--font-title);
  font-size: clamp(2.1rem, 2.6vw + 1.4rem, 3.2rem);
  margin: 0;
}

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

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.btn {
  padding: 11px 20px;
  border-radius: 10px;
  font-weight: 600;
  border: 1px solid transparent;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 40px rgba(4, 7, 18, 0.35);
}

.btn.primary {
  background: linear-gradient(135deg, var(--primary), #7f8bff);
  color: #0d1020;
}

.btn.ghost {
  background: transparent;
  border-color: rgba(255, 255, 255, 0.16);
  color: var(--text);
}

.btn.small { padding: 8px 14px; font-size: 14px; }

.stat-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 14px;
}

.stat-card {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 14px;
  padding: 12px 14px;
}

.stat-card .value { font-size: 20px; font-weight: 600; }
.stat-card .label { font-size: 12px; color: var(--muted); }

.hero-card {
  background: rgba(255, 255, 255, 0.03);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.bot-profile {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 12px;
  align-items: center;
}

.bot-profile img {
  width: 52px;
  height: 52px;
  border-radius: 50%;
}

.bot-name { font-weight: 600; font-size: 18px; }

.bot-error {
  padding: 12px 14px;
  border-radius: 12px;
  background: rgba(248, 113, 113, 0.12);
  border: 1px solid rgba(248, 113, 113, 0.3);
  color: #fca5a5;
  font-size: 13px;
}

.bot-highlights { display: grid; gap: 10px; }

.highlight-card {
  display: flex;
  gap: 12px;
  background: rgba(10, 14, 30, 0.5);
  border-radius: 12px;
  padding: 12px 14px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.highlight-card i { font-size: 20px; color: var(--accent); }

.section { padding: 64px 0; }

.section.alt { background: rgba(255, 255, 255, 0.015); }

.section-head {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 26px;
}

.section-head h2 {
  font-family: var(--font-title);
  margin: 0;
  font-size: clamp(1.5rem, 2vw + 1rem, 2.2rem);
}

.grid { display: grid; gap: 18px; }

.features-grid { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

.feature-card {
  padding: 18px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.07);
  min-height: 160px;
}

.feature-card i { font-size: 22px; color: var(--primary); }

.commands {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.command {
  border-radius: 14px;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background: rgba(12, 17, 34, 0.65);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
  align-items: center;
}

.command-icon {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: rgba(88, 101, 242, 0.18);
  color: var(--primary);
}

.command-title {
  font-weight: 600;
}

.reviews-grid { grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); }

.review {
  padding: 20px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.07);
  display: grid;
  gap: 14px;
}

.review-quote {
  font-size: 15px;
  line-height: 1.6;
}

.review-meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.review-name { font-weight: 600; }

.faq { display: grid; gap: 12px; }

.faq-item {
  padding: 14px 16px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.07);
}

.faq-item summary {
  cursor: pointer;
  font-weight: 600;
  list-style: none;
}

.faq-item summary::-webkit-details-marker { display: none; }

.faq-item summary::after {
  content: "+";
  float: right;
  color: var(--muted);
}

.faq-item[open] summary::after { content: "–"; }

.faq-item p { margin-top: 10px; }

.cta { padding: 50px 0 80px; }

.cta-inner {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 18px;
}

.site-footer {
  padding: 40px 0 60px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  align-items: center;
}

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

.footer-social {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}

.footer-social a {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: grid;
  place-items: center;
}

.muted { color: var(--muted); }

@media (max-width: 900px) {
  .navbar-collapse {
    padding-top: 12px;
  }
}

@media (max-width: 640px) {
  .hero { padding-top: 70px; }
  .hero-actions, .btn { width: 100%; }
  .btn { justify-content: center; }
  .footer-social { justify-content: flex-start; }
}