:root {
  --bg: #050816;
  --bg-alt: #070b1a;
  --accent: #6366f1;
  --accent-soft: rgba(99, 102, 241, 0.12);
  --text-main: #f9fafb;
  --text-muted: #9ca3af;
  --border-subtle: rgba(148, 163, 184, 0.3);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text",
    "Segoe UI", sans-serif;
  background: radial-gradient(circle at top, #1f2937 0, #020617 40%, #000 100%);
  color: var(--text-main);
  -webkit-font-smoothing: antialiased;
}

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

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

a:hover {
  text-decoration: underline;
}

.container {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(18px);
  background: linear-gradient(to bottom, rgba(15, 23, 42, 0.9), transparent);
  border-bottom: 1px solid rgba(148, 163, 184, 0.2);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 0.25rem;
}

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

.logo-image {
  height: 32px;
  width: auto;
}

.logo-text {
  font-weight: 600;
  letter-spacing: 0.03em;
  font-size: 0.95rem;
}

.nav {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  font-size: 0.85rem;
}

.nav a {
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.4rem 0;
  position: relative;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.18s ease-out;
}

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

.hero {
  padding: 4.5rem 0 3.5rem;
}

.hero-inner {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.hero-text h1 {
  font-size: clamp(2rem, 3vw + 1rem, 2.8rem);
  line-height: 1.1;
  margin-bottom: 1rem;
}

.hero-text p {
  color: var(--text-muted);
  max-width: 32rem;
  font-size: 0.98rem;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 500;
  border: 1px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.16s ease-out, border-color 0.16s ease-out,
    transform 0.08s ease-out, box-shadow 0.16s ease-out;
}

.btn.primary {
  background: linear-gradient(135deg, #4f46e5, #6366f1);
  border-color: rgba(129, 140, 248, 0.7);
  box-shadow: 0 18px 40px rgba(129, 140, 248, 0.48);
}

.btn.primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 22px 50px rgba(129, 140, 248, 0.6);
}

.btn.secondary {
  background: rgba(15, 23, 42, 0.8);
  border-color: rgba(148, 163, 184, 0.4);
}

.btn.secondary:hover {
  background: rgba(15, 23, 42, 1);
}

.section {
  padding: 3.5rem 0;
}

.section-alt {
  background: radial-gradient(circle at top left, #111827 0, #020617 55%);
}

.section h2 {
  font-size: 1.35rem;
  margin-bottom: 0.8rem;
}

.section p {
  color: var(--text-muted);
  font-size: 0.96rem;
  max-width: 42rem;
}

.feature-list {
  list-style: none;
  padding: 0;
  margin: 1.2rem 0 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 0.7rem 1.2rem;
}

.feature-list li {
  padding: 0.7rem 0.9rem;
  border-radius: 0.6rem;
  background: var(--accent-soft);
  border: 1px solid rgba(99, 102, 241, 0.35);
  font-size: 0.88rem;
}

.text-link {
  color: var(--accent);
  font-weight: 500;
}

.contact-email a {
  color: var(--accent);
  font-weight: 500;
}

.note {
  margin-top: 0.9rem;
  font-size: 0.86rem;
  color: var(--text-muted);
}

.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 1.4rem 0 1.6rem;
  background: rgba(0, 0, 0, 0.7);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-inner a {
  color: var(--accent);
}

@media (max-width: 640px) {
  .nav {
    gap: 0.85rem;
    font-size: 0.8rem;
  }

  .logo-text {
    display: none;
  }
}