/* ============================================================
   Kin — Base
   Reset, document defaults, and shared layout primitives.
   Depends on tokens.css.
   ============================================================ */

* { box-sizing: border-box; }

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

body {
  margin: 0;
  min-height: 100vh;
  background: var(--gradient-page-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
}

/* Hero pages (homepage, waitlist) sit on the blurred photo backdrop.
   (The photo alone — layering it under the opaque page gradient would
   just hide it, since that gradient has no transparency of its own.) */
body.bg-photo {
  background-image: url("/assets/img/bg-waitlist.jpg");
  background-size: cover;
  background-position: center top;
  background-repeat: no-repeat;
  background-attachment: scroll;
}

/* Vertically + horizontally centered single-column pages
   (homepage, waitlist, qr). */
body.center {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
}

/* Top-aligned reading page (privacy policy). */
body.page {
  display: flex;
  justify-content: center;
  padding: var(--space-12) var(--space-6) 80px;
}

a { color: var(--color-accent); }
a:hover { color: var(--color-accent-hover); }

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

/* iOS Safari themes native form-control chrome blue unless appearance is
   reset — without this, .btn's submit button shows the system tint under
   its own background instead of the authored gradient. */
button, input, select, textarea {
  appearance: none;
  -webkit-appearance: none;
  font: inherit;
  color: inherit;
}

h1, h2, h3, p { margin: 0; }

/* Layout containers */
.container {
  width: 100%;
  max-width: var(--container-narrow);
}

.container-prose {
  width: 100%;
  max-width: var(--container-prose);
}

/* Utility */
.text-center { text-align: center; }
.muted { color: var(--color-muted); }
.visually-hidden {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  opacity: 0;
}