/* ==========================================================================
   Pearl Island Tours — Base
   Font loading, reset, element defaults, typography primitives, utilities.
   ========================================================================== */

/* ---------- Fonts (self-hosted, no CDN) ---------- */
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("../assets/fonts/inter-latin-ext.woff2") format("woff2");
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF,
    U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020,
    U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("../assets/fonts/inter-latin.woff2") format("woff2");
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193,
    U+2212, U+2215, U+FEFF, U+FFFD;
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + var(--space-lg));
}

body,
h1, h2, h3, h4, h5, h6,
p, figure, blockquote, dl, dd, ul, ol {
  margin: 0;
}

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

body {
  min-height: 100vh;
  background-color: var(--color-surface);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--font-weight-regular);
  line-height: var(--leading-relaxed);
  letter-spacing: var(--tracking-normal);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

img {
  height: auto;
  background-color: var(--color-surface-muted);
}

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

button {
  background: none;
  border: 0;
  cursor: pointer;
}

a {
  color: var(--color-accent-strong);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
  transition: color var(--duration-fast) var(--ease-out);
}

a:hover {
  color: var(--palette-gold-800);
}

hr {
  border: 0;
  border-top: 1px solid var(--color-border);
  margin: 0;
}

/* ---------- Headings ---------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--font-weight-bold);
  line-height: var(--leading-snug);
  letter-spacing: var(--tracking-snug);
  color: var(--color-text);
  text-wrap: balance;
}

h1 {
  font-size: var(--text-4xl);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
}

h2 {
  font-size: var(--text-3xl);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
}

h3 {
  font-size: var(--text-xl);
}

h4 {
  font-size: var(--text-lg);
  font-weight: var(--font-weight-semibold);
}

h5 {
  font-size: var(--text-md);
  font-weight: var(--font-weight-semibold);
}

p {
  text-wrap: pretty;
}

strong, b {
  font-weight: var(--font-weight-semibold);
}

/* ---------- Focus ---------- */
:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 3px;
  border-radius: var(--radius-xs);
}

/* ---------- Selection ---------- */
::selection {
  background-color: var(--palette-gold-200);
  color: var(--palette-forest-950);
}

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute;
  left: var(--space-md);
  top: var(--space-md);
  z-index: var(--z-overlay);
  padding: var(--space-sm) var(--space-md);
  background-color: var(--color-surface-inverse);
  color: var(--color-text-inverse);
  font-size: var(--text-sm);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transform: translateY(calc(-100% - var(--space-xl)));
  transition: transform var(--duration-fast) var(--ease-out);
}

.skip-link:focus {
  transform: translateY(0);
  color: var(--color-text-inverse);
}

/* ==========================================================================
   Typography primitives
   ========================================================================== */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  margin: 0 0 var(--space-md);
  font-size: var(--text-eyebrow);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--tracking-eyebrow);
  text-transform: uppercase;
  color: var(--color-accent-strong);
}

.eyebrow::before {
  content: "";
  width: var(--space-xl);
  height: 2px;
  background-color: var(--color-accent);
  flex: none;
}

.eyebrow--center {
  justify-content: center;
}

.eyebrow--inverse {
  color: var(--palette-gold-400);
}

.lead {
  font-size: var(--text-md);
  line-height: var(--leading-relaxed);
  color: var(--color-text-muted);
  max-width: var(--measure);
}

.lead--inverse {
  color: var(--color-text-inverse-muted);
}

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

.text-fine {
  font-size: var(--text-xs);
  line-height: var(--leading-normal);
  color: var(--color-text-subtle);
}

/* ==========================================================================
   Utilities
   ========================================================================== */

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

.is-inverse {
  color: var(--color-text-inverse);
}

.no-scroll {
  overflow: hidden;
}

/* ---------- Scroll reveal (progressive enhancement) ---------- */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity var(--duration-slow) var(--ease-out),
    transform var(--duration-slow) var(--ease-out);
}

.js [data-reveal].is-revealed {
  opacity: 1;
  transform: none;
}

@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;
  }
  .js [data-reveal] {
    opacity: 1;
    transform: none;
  }
}