/* ==========================================================================
   Purple Door Security — Reset, base elements, layout primitives
   ========================================================================== */

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

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

body,
h1,
h2,
h3,
h4,
p,
figure,
blockquote,
dl,
dd {
  margin: 0;
}

ul[class],
ol[class] {
  list-style: none;
  margin: 0;
  padding: 0;
}

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

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

body {
  min-height: 100svh;
  background-color: var(--pd-void);
  color: var(--pd-text);
  font-family: var(--pd-font-body);
  font-size: var(--pd-text-base);
  line-height: var(--pd-leading-normal);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

h1,
h2,
h3,
h4 {
  font-family: var(--pd-font-display);
  font-weight: 600;
  line-height: var(--pd-leading-tight);
  letter-spacing: var(--pd-tracking-tight);
  text-wrap: balance;
}

p {
  text-wrap: pretty;
}

a {
  color: var(--pd-purple-300);
  text-underline-offset: 0.2em;
  text-decoration-thickness: 1px;
}

a:hover {
  color: var(--pd-purple-200);
}

/* --- Focus: always visible, always high contrast ------------------------- */
:focus-visible {
  outline: 2px solid var(--pd-light-500);
  outline-offset: 3px;
  border-radius: var(--pd-radius-sm);
}

/* --- Utilities ----------------------------------------------------------- */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: var(--pd-space-3);
  left: var(--pd-space-3);
  z-index: 100;
  padding: var(--pd-space-3) var(--pd-space-4);
  background: var(--pd-purple-500);
  color: var(--pd-white);
  font-weight: 600;
  border-radius: var(--pd-radius-md);
  transform: translateY(-200%);
  transition: transform var(--pd-dur-fast) var(--pd-ease-standard);
}

.skip-link:focus {
  transform: translateY(0);
}

.container {
  width: 100%;
  max-width: var(--pd-container);
  margin-inline: auto;
  padding-inline: var(--pd-gutter);
}

.eyebrow {
  font-family: var(--pd-font-display);
  font-size: var(--pd-text-xs);
  font-weight: 600;
  letter-spacing: var(--pd-tracking-caps);
  text-transform: uppercase;
  color: var(--pd-purple-300);
}

/* --- Buttons ------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--pd-space-2);
  padding: var(--pd-space-3) var(--pd-space-5);
  min-height: 48px; /* WCAG 2.2 target size */
  border: 1px solid transparent;
  border-radius: var(--pd-radius-pill);
  font-family: var(--pd-font-display);
  font-size: var(--pd-text-sm);
  font-weight: 600;
  letter-spacing: var(--pd-tracking-wide);
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--pd-dur-fast) var(--pd-ease-standard),
    border-color var(--pd-dur-fast) var(--pd-ease-standard),
    transform var(--pd-dur-fast) var(--pd-ease-standard),
    box-shadow var(--pd-dur-base) var(--pd-ease-standard);
}

.btn--primary {
  background: var(--pd-purple-500);
  color: var(--pd-white);
  box-shadow: var(--pd-glow-purple);
}

.btn--primary:hover {
  background: var(--pd-purple-400);
  color: var(--pd-white);
  transform: translateY(-1px);
}

.btn--ghost {
  background: transparent;
  border-color: var(--pd-ash);
  color: var(--pd-text);
}

.btn--ghost:hover {
  border-color: var(--pd-purple-400);
  color: var(--pd-purple-200);
  background: rgba(var(--pd-purple-500-rgb), 0.1);
}

.btn:active {
  transform: translateY(0) scale(0.985);
}

/* --- Site header --------------------------------------------------------- */
.site-header {
  position: absolute;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 20;
  padding-block: var(--pd-space-5);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--pd-space-4);
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: var(--pd-space-3);
  text-decoration: none;
  color: var(--pd-text);
}

.logo__mark {
  width: 34px;
  height: 34px;
  flex: none;
}

.logo__text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.logo__name {
  font-family: var(--pd-font-display);
  font-size: var(--pd-text-sm);
  font-weight: 700;
  letter-spacing: var(--pd-tracking-wide);
}

.logo__sub {
  font-family: var(--pd-font-display);
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: var(--pd-tracking-caps);
  text-transform: uppercase;
  color: var(--pd-mute);
  margin-top: 3px;
}

/* --- Reduced motion ------------------------------------------------------ */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}