/* base.css — reset + global element styles + reusable primitives. */

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.08;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.02em;
  text-wrap: balance;
}
h1 { font-size: var(--step-4); }
h2 { font-size: var(--step-3); }
h3 { font-size: var(--step-2); }

p { max-width: 65ch; }

a { color: var(--secondary); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; display: block; }
button { font: inherit; cursor: pointer; }
ul { padding-left: 1.2em; }

/* Eyebrow label — monospace ties to the ticket/boarding-pass world */
.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--step--1);
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--primary);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5em;
  padding: .7em 1.2em;
  border-radius: var(--radius-sm);
  font-weight: 600;
  border: 1px solid transparent;
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease);
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-strong); color: #fff; text-decoration: none; transform: translateY(-1px); }
.btn-ghost { background: transparent; border-color: var(--line); color: var(--ink); }
.btn-ghost:hover { background: var(--surface-alt); text-decoration: none; }

/* Accessibility floor */
:focus-visible { outline: 3px solid var(--secondary); outline-offset: 2px; border-radius: 4px; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .001ms !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }
}