/* Reset + tokens */
*,
*::before,
*::after {
  box-sizing: border-box;
}
html,
body {
  margin: 0;
  padding: 0;
}
img {
  display: block;
  max-width: 100%;
  height: auto;
}
a {
  text-decoration: none;
  color: inherit;
}
button {
  font: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

:root {
  --bg: #ffffff;
  --nav-bg: rgba(255, 255, 255, 0.72); /* light translucent */
  --text: #0b1220;
  --muted: #6b7280;
  --blue: #1f3e8a; /* deep royal */
  --blue-2: #244da8; /* gradient end */
  --border: #e5e7eb;
  --shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
  --radius: 12px;
  --maxw: 1280px;
}

html {
  font-family: "Inter", system-ui, -apple-system, Segoe UI, Roboto, Arial,
    sans-serif;
}
body {
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

/* container */
.container {
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: clamp(12px, 3vw, 24px);
}

/* buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 18px;
  border-radius: 999px;
  font-weight: 700;
  transition: transform 0.08s ease, box-shadow 0.2s ease;
}
.btn:active {
  transform: translateY(1px);
}
.btn-primary {
  color: #fff;
  background: linear-gradient(180deg, var(--blue), var(--blue-2));
  box-shadow: 0 6px 16px rgba(31, 62, 138, 0.25);
}
.btn-primary:hover {
  box-shadow: 0 10px 24px rgba(31, 62, 138, 0.35);
}
.btn-cta {
  padding: 0 22px;
}