/* ==========================================================================
   Ping Payments — Base
   Reset, typography, layout primitives, buttons & pills.
   ========================================================================== */

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

* { margin: 0; }

/* Ensure the [hidden] attribute always wins over component display rules
   (e.g. tab panels using display:grid) so inactive tabs stay collapsed. */
[hidden] { display: none !important; }

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

body {
  font-family: var(--pp-font-body);
  font-size: var(--pp-fs-body);
  line-height: var(--pp-lh-body);
  color: var(--pp-ink);
  background: var(--pp-surface);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip; /* guard against incidental horizontal scroll */
}

img,
picture,
svg,
video { display: block; max-width: 100%; height: auto; }

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

a { color: inherit; text-decoration: none; }

ul[role="list"],
ol[role="list"] { list-style: none; padding: 0; }

:focus-visible {
  outline: none;
  box-shadow: var(--pp-ring);
  border-radius: var(--pp-radius-sm);
}

/* ---- Typography -------------------------------------------------------- */
h1, h2, h3, h4 {
  font-family: var(--pp-font-head);
  color: var(--pp-blue-ink);
  font-weight: var(--pp-fw-bold);
  line-height: var(--pp-lh-tight);
  letter-spacing: -0.01em;
}

h1 { font-size: var(--pp-fs-h1); }
h2 { font-size: var(--pp-fs-h2); line-height: var(--pp-lh-snug); }
h3 { font-size: var(--pp-fs-h3); }
h4 { font-size: var(--pp-fs-h4); font-weight: var(--pp-fw-semibold); }

p { color: var(--pp-muted); }
strong { color: var(--pp-ink); font-weight: var(--pp-fw-semibold); }

.eyebrow {
  display: inline-block;
  font-family: var(--pp-font-body);
  font-size: var(--pp-fs-eyebrow);
  font-weight: var(--pp-fw-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--pp-blue);
}

.lead { font-size: var(--pp-fs-lead); color: var(--pp-muted); }

/* ---- Layout primitives ------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--pp-container);
  margin-inline: auto;
  padding-inline: var(--pp-gutter);
}

.container--narrow { max-width: var(--pp-container-narrow); }
.container--wide { max-width: var(--pp-container-wide); }
/* Full-bleed with symmetric percentage padding (for showcase sections) */
.container--bleed { max-width: none; padding-inline: clamp(1.25rem, 5%, 7rem); }

.section { padding-block: clamp(3rem, 2rem + 5vw, 6rem); }
.section--tight { padding-block: clamp(2rem, 1.5rem + 3vw, 4rem); }

.stack > * + * { margin-top: var(--pp-sp-4); }
.stack-lg > * + * { margin-top: var(--pp-sp-6); }

.text-center { text-align: center; }

.grid { display: grid; gap: var(--pp-sp-5); }

/* responsive auto-fit grids used by feature/card blocks */
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.grid--5 { grid-template-columns: repeat(5, 1fr); }

@media (max-width: 960px) {
  .grid--4, .grid--5 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .grid--2, .grid--3, .grid--4, .grid--5 { grid-template-columns: 1fr; }
}

/* ---- Buttons ----------------------------------------------------------- */
.btn {
  --_bg: var(--pp-blue);
  --_fg: #fff;
  display: inline-flex;
  align-items: center;
  gap: var(--pp-sp-2);
  padding: 0.8125rem 1.375rem;
  font-weight: var(--pp-fw-semibold);
  font-size: var(--pp-fs-small);
  line-height: 1;
  color: var(--_fg);
  background: var(--_bg);
  border: 1.5px solid transparent;
  border-radius: var(--pp-radius-pill);
  cursor: pointer;
  transition: transform var(--pp-dur-fast) var(--pp-ease),
              background-color var(--pp-dur-fast) var(--pp-ease),
              box-shadow var(--pp-dur-fast) var(--pp-ease);
  white-space: nowrap;
}
.btn:hover { background: var(--pp-blue-hover); transform: translateY(-2px); box-shadow: var(--pp-shadow-md); }
.btn:active { transform: translateY(0); }

.btn--outline {
  --_bg: transparent;
  --_fg: var(--pp-blue);
  border-color: var(--pp-blue-100);
  background: #fff;
}
.btn--outline:hover { --_fg: var(--pp-blue); background: var(--pp-blue-50); border-color: var(--pp-blue); }

.btn--ghost {
  --_bg: transparent;
  --_fg: var(--pp-blue-ink);
  border-color: var(--pp-line);
  background: #fff;
}
.btn--ghost:hover { background: var(--pp-blue-50); }

.btn--lg { padding: 1rem 1.75rem; font-size: var(--pp-fs-body); }

.btn .icon { width: 1.05em; height: 1.05em; transition: transform var(--pp-dur-fast) var(--pp-ease); }
.btn:hover .icon { transform: translateX(3px); }

/* ---- Pills / tags ------------------------------------------------------ */
.pill {
  display: inline-flex;
  align-items: center;
  gap: var(--pp-sp-2);
  padding: 0.5rem 0.9rem;
  font-size: var(--pp-fs-small);
  font-weight: var(--pp-fw-medium);
  color: var(--pp-blue-ink);
  background: #fff;
  border: 1px solid var(--pp-line);
  border-radius: var(--pp-radius-pill);
}
.pill--solid { background: var(--pp-blue); color: #fff; border-color: var(--pp-blue); }

/* ---- Generic icon sizing ---------------------------------------------- */
.icon { width: 1.25rem; height: 1.25rem; flex: none; }

/* ---- Check list -------------------------------------------------------- */
.checklist { list-style: none; padding: 0; display: grid; gap: var(--pp-sp-2); }
.checklist li {
  display: flex;
  align-items: center;
  gap: var(--pp-sp-2);
  font-size: var(--pp-fs-small);
  color: var(--pp-ink);
}
.checklist .icon { color: var(--pp-green); width: 1.05rem; height: 1.05rem; }

/* ---- Visually hidden --------------------------------------------------- */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute;
  left: 1rem; top: -100%;
  z-index: var(--pp-z-overlay);
  background: #fff;
  padding: 0.6rem 1rem;
  border-radius: var(--pp-radius-sm);
  box-shadow: var(--pp-shadow-md);
  transition: top var(--pp-dur-fast) var(--pp-ease);
}
.skip-link:focus { top: 1rem; }