/* ==========================================================================
   styles.css — Global Foundation
   Bankenveld Golf Estate
   Import order (in HTML): variables → styles → components → animations →
   utilities → responsive. This file holds resets, base elements, layout
   primitives, base typography and the primary navigation shell.
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. MODERN RESET
   -------------------------------------------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

* { margin: 0; }

html {
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 6rem; /* offset for fixed header */
}

html { background-color: var(--color-bg); }

body {
  min-height: 100svh;
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: var(--lh-normal);
  font-weight: var(--fw-regular);
  color: var(--color-text);
  background-color: transparent; /* lets the fixed .site-bg glow show through */
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

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

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

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

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

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

/* Respect reduced motion at the root */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* --------------------------------------------------------------------------
   2. BASE TYPOGRAPHY
   -------------------------------------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: var(--fw-semibold);
  line-height: var(--lh-tight);
  letter-spacing: var(--ls-tight);
  color: var(--color-text);
  text-wrap: balance;
}

h1 { font-size: var(--fs-3xl); }
h2 { font-size: var(--fs-2xl); }
h3 { font-size: var(--fs-xl); }
h4 { font-size: var(--fs-lg); }
h5 { font-size: var(--fs-md); }
h6 { font-size: var(--fs-base); letter-spacing: var(--ls-wide); text-transform: uppercase; }

p { max-width: 68ch; text-wrap: pretty; }

.eyebrow {
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: var(--color-accent-dark);
}

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

::selection {
  background: var(--color-accent);
  color: var(--color-primary-dark);
}

/* --------------------------------------------------------------------------
   3. LAYOUT PRIMITIVES
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.container--wide   { max-width: var(--container-wide); }
.container--narrow { max-width: var(--container-narrow); }

.section {
  position: relative;
  padding-block: var(--section-padding-y);
}
.section--alt { background-color: var(--color-bg-alt); }
.section--dark {
  background-color: var(--color-primary-dark);
  color: var(--color-text-inverse);
}
.section--dark h1,
.section--dark h2,
.section--dark h3 { color: var(--color-text-inverse); }

/* Accessibility: skip link + visually-hidden */
.skip-link {
  position: absolute;
  left: var(--space-4);
  top: var(--space-4);
  z-index: var(--z-max);
  padding: var(--space-2) var(--space-4);
  background: var(--color-primary);
  color: var(--color-white);
  border-radius: var(--radius-sm);
  transform: translateY(-150%);
  transition: transform var(--dur-fast) var(--ease-out);
}
.skip-link:focus { transform: translateY(0); }

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

/* --------------------------------------------------------------------------
   4. PRIMARY NAVIGATION (header shell)
   Visual styling of nav items lives in components.css; this is structure.
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: var(--z-nav);
  display: flex;
  align-items: center;
  color: var(--color-off-white); /* white text over the hero */
  transition: background-color var(--dur-base) var(--ease-out),
              color var(--dur-base) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out),
              padding var(--dur-base) var(--ease-out);
  padding-block: var(--space-5);
}
/* Toggled by js/navigation.js on scroll */
.site-header.is-scrolled {
  padding-block: var(--space-3);
  color: var(--color-charcoal);
  background: rgba(250, 248, 242, 0.80);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  box-shadow: var(--shadow-sm);
}

/* Logo light/dark swap */
.site-header__logo { position: relative; display: inline-block; line-height: 0; }
.site-header__logo img { transition: opacity var(--dur-base) var(--ease-out); }
.site-header__logo .logo-dark { position: absolute; inset: 0; opacity: 0; }
.site-header.is-scrolled .logo-light { opacity: 0; }
.site-header.is-scrolled .logo-dark  { opacity: 1; }

.site-header__inner {
  width: 100%;
  max-width: var(--container-wide);
  margin-inline: auto;
  padding-inline: var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

/* Main content sits below the fixed header */
.site-main { display: block; }

/* --------------------------------------------------------------------------
   5. FOOTER
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--color-primary-dark);
  color: var(--color-stone-300);
  padding-block: var(--space-10) var(--space-6);
}
.site-footer a { color: var(--color-stone-300); transition: var(--transition-color); }
.site-footer a:hover { color: var(--color-accent-light); }
.site-footer__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-8);
  padding-block-end: var(--space-8);
  border-block-end: 1px solid rgba(255, 255, 255, 0.08);
}
.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding-block-start: var(--space-6);
  font-size: var(--fs-sm);
  color: var(--color-stone-400);
}