:root {
  --bg: #0a0a0f;
  --card-bg: #1C1C1E;
  --accent: #02C39A;
  --text: #e8e8e8;
  --muted: rgba(232, 232, 232, 0.68);
  --line: rgba(255, 255, 255, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  transition: opacity 0.18s ease;
}

body.page-enter {
  opacity: 0;
}

body.page-ready {
  opacity: 1;
}

body.page-leave {
  opacity: 0;
}

.topnav {
  position: sticky;
  top: 0;
  z-index: 120;
  backdrop-filter: blur(12px);
  background: rgba(10, 10, 15, 0.78);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.btn {
  border-radius: 10px;
  border: 1px solid transparent;
  padding: 9px 14px;
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.01em;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  cursor: pointer;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-outline {
  border-color: rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
}

.btn-outline:hover {
  border-color: rgba(2, 195, 154, 0.45);
  background: rgba(2, 195, 154, 0.08);
}

.btn-primary {
  background: var(--accent);
  color: #042820;
  border-color: rgba(2, 195, 154, 0.65);
  box-shadow: 0 10px 24px rgba(2, 195, 154, 0.25);
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--line);
  border-radius: 14px;
}