/*
  layout.css
  ----------
  Structural layout: header/nav, footer, page containers and grids.
  Component-level styling (buttons, cards, etc.) lives in components.css.
*/

/* --- Container --------------------------------------------------------
   A reusable centered container so every section lines up consistently. */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin-inline: auto;
  padding-inline: var(--space-sm);
}

/* --- Skip link ----------------------------------------------------------
   Lets keyboard/screen-reader users jump past the nav straight to the main
   content. Hidden until it receives focus. */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-sm);
  background: var(--color-accent);
  color: #14100c;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  z-index: 1000;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: var(--space-sm);
}

/* --- Site header / navigation ------------------------------------------ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(10, 11, 13, 0.92);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid var(--color-border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-xs);
}

.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-heading);
  font-size: var(--fs-md);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.site-logo img {
  height: 40px;
  width: auto;
}

/* Mobile nav toggle ("hamburger") button - hidden on wider screens.
   Its open/closed state is toggled by main.js, which adds/removes the
   `is-open` class on .main-nav and updates aria-expanded on this button. */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
}

.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background-color: var(--color-text);
  border-radius: 2px;
}

.main-nav ul {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.main-nav a {
  font-weight: 500;
  font-size: var(--fs-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  transition: color 0.15s ease;
}

.main-nav a:hover,
.main-nav a[aria-current="page"] {
  color: var(--color-text);
}

@media (max-width: 640px) {
  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--color-bg-alt);
    border-bottom: 1px solid var(--color-border);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
  }

  .main-nav.is-open {
    max-height: 300px;
  }

  .main-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: var(--space-sm);
  }

  .main-nav li {
    width: 100%;
  }

  .main-nav a {
    display: block;
    padding: var(--space-xs) 0;
  }
}

/* --- Generic page sections ---------------------------------------------- */
.section {
  padding-block: var(--space-xl);
}

.section-heading {
  text-align: center;
  margin-bottom: var(--space-lg);
}

.section-heading p {
  max-width: 60ch;
  margin-inline: auto;
  margin-top: var(--space-xs);
}

/* Simple content page wrapper for legal/placeholder pages */
.page-content {
  max-width: 70ch;
  margin-inline: auto;
  padding-block: var(--space-xl);
}

.page-content h1 {
  margin-bottom: var(--space-md);
}

.page-content h2 {
  margin-top: var(--space-lg);
  margin-bottom: var(--space-xs);
}

.page-content h3 {
  margin-top: var(--space-md);
  margin-bottom: var(--space-xs);
}

.page-content p {
  margin-bottom: var(--space-sm);
}

/* base.css's reset strips list-style/padding from every <ul> site-wide, so
   legal-page lists need their own bullets/indent restored here. */
.page-content ul {
  list-style: disc;
  padding-left: var(--space-md);
  margin-bottom: var(--space-sm);
}

.page-content li {
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
}

/* --- Footer -------------------------------------------------------------- */
.site-footer {
  border-top: 1px solid var(--color-border);
  padding-block: var(--space-lg);
  margin-top: var(--space-xl);
}

.footer-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-lg);
}

.footer-social {
  display: flex;
  gap: var(--space-sm);
}

.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.footer-social a:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.footer-legal ul {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-legal a {
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.footer-bottom {
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: var(--fs-sm);
  text-align: center;
}