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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  background: var(--c-bg);
}

body {
  margin: 0;
  min-height: 100dvh;
  background: var(--c-bg);
  color: var(--c-text);
  font: var(--fs-md) / 1.45 var(--font-body);
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  overscroll-behavior-y: none;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: var(--tracking-display);
  text-transform: uppercase;
  line-height: 1.15;
}

h1 {
  font-size: var(--fs-xl);
}

h2 {
  font-size: var(--fs-lg);
}

h3 {
  font-size: var(--fs-md);
}

p {
  margin: 0;
}

a {
  color: var(--c-gold);
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

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

:focus-visible {
  outline: 2px solid var(--c-gold);
  outline-offset: 2px;
}

[hidden] {
  display: none !important;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

/* --- app frame: a centered column on desktop ------------------------------------------------- */

#app {
  position: relative;
  max-width: var(--app-max);
  min-height: 100dvh;
  margin: 0 auto;
  background: var(--c-bg);
}

@media (min-width: 600px) {
  body {
    background:
      radial-gradient(circle at 20% 10%, rgb(215 38 61 / 8%), transparent 40%),
      radial-gradient(circle at 80% 90%, rgb(232 176 74 / 6%), transparent 40%),
      var(--c-bg);
  }

  #app {
    border-inline: var(--border);
  }
}

.screen {
  padding: calc(var(--sp-4) + var(--safe-top)) var(--sp-4)
    calc(var(--nav-h) + var(--sp-5) + var(--safe-bottom));
  animation: screen-in var(--t-med) var(--ease-out);
}

.screen--bare {
  padding-bottom: calc(var(--sp-6) + var(--safe-bottom));
}

.screen__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  margin-bottom: var(--sp-4);
}

.stack {
  display: grid;
  gap: var(--sp-3);
}

.stack--lg {
  gap: var(--sp-5);
}

.row {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

.row--between {
  justify-content: space-between;
}

.row--wrap {
  flex-wrap: wrap;
  row-gap: var(--sp-1);
}

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

.small {
  font-size: var(--fs-sm);
}

.center {
  text-align: center;
}

@keyframes screen-in {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 1ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 1ms !important;
  }
}

.stack--sm {
  gap: var(--sp-1);
}