/**
 * Retro Nav — Base Styles
 *
 * Layout and structure only. Visual styling (color, texture, shadows,
 * sticker treatment) lives in styles/*.css.
 *
 * Concept: a slim "record store sign" bar. The logo hangs like a shop
 * sign; nav links read as crate divider tabs; socials are little stickers.
 */

/* ========================================================================
   ROOT
   ======================================================================== */

.retro-nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
}

.retro-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--large);
  min-height: 4.5rem;
  max-width: 96rem;
  margin: 0 auto;
}

/* ========================================================================
   LOGO — hanging shop sign
   ======================================================================== */

.retro-nav__logo {
  position: relative;
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
  transform-origin: top center;
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.retro-nav__logo-hook {
  width: 2px;
  height: 0.5rem;
}

.retro-nav__logo-board {
  display: inline-flex;
  align-items: center;
  padding: var(--xsmall) var(--medium);
}

.retro-nav__logo-text {
  font-family: var(--header);
  font-size: 1.5rem;
  line-height: 1;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

/* Gentle sway on hover, like a sign on a hook */
.retro-nav__logo:hover {
  transform: rotate(-2deg);
}

/* ========================================================================
   MENU
   ======================================================================== */

.retro-nav__menu {
  display: flex;
  align-items: center;
  gap: var(--xl);
}

.retro-nav__list {
  display: flex;
  align-items: center;
  gap: var(--xsmall);
  list-style: none;
  margin: 0;
  padding: 0;
}

.retro-nav__item {
  display: flex;
}

.retro-nav__link {
  position: relative;
  display: inline-block;
  padding: var(--xsmall) var(--small);
  font-family: var(--body);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  white-space: nowrap;
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1),
              color 0.2s ease;
}

/* ========================================================================
   SOCIALS — sticker icons
   ======================================================================== */

.retro-nav__socials {
  display: flex;
  align-items: center;
  gap: var(--xsmall);
}

.retro-nav__social {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.1rem;
  height: 2.1rem;
  padding: 0.45rem;
  border-radius: 999px;
  text-decoration: none;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.retro-nav__social svg {
  width: 100%;
  height: 100%;
}

/* ========================================================================
   HAMBURGER
   ======================================================================== */

.retro-nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0.6rem;
  border: none;
  background: transparent;
  cursor: pointer;
}

.retro-nav__toggle-bar {
  display: block;
  width: 100%;
  height: 2.5px;
  border-radius: 2px;
  transition: transform 0.3s ease, opacity 0.2s ease;
}

.retro-nav__toggle[aria-expanded="true"] .retro-nav__toggle-bar:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}
.retro-nav__toggle[aria-expanded="true"] .retro-nav__toggle-bar:nth-child(2) {
  opacity: 0;
}
.retro-nav__toggle[aria-expanded="true"] .retro-nav__toggle-bar:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

/* ========================================================================
   RESPONSIVE — TABLET / MOBILE
   ======================================================================== */

@media screen and (max-width: 991px) {
  .retro-nav__toggle {
    display: flex;
  }

  .retro-nav__menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: var(--medium);
    padding: var(--xl) 2.5rem var(--xxl);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.25s ease, transform 0.25s ease, visibility 0s linear 0.25s;
  }

  .retro-nav__menu.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    transition: opacity 0.25s ease, transform 0.25s ease;
  }

  .retro-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: var(--xsmall);
  }

  .retro-nav__link {
    display: block;
    padding: var(--small) var(--medium);
    font-size: 1rem;
  }

  .retro-nav__socials {
    justify-content: center;
    padding-top: var(--small);
  }
}

@media screen and (max-width: 479px) {
  .retro-nav__logo-text {
    font-size: 1.25rem;
  }
}

/* ========================================================================
   REDUCED MOTION
   ======================================================================== */

@media (prefers-reduced-motion: reduce) {
  .retro-nav__logo,
  .retro-nav__link,
  .retro-nav__social,
  .retro-nav__toggle-bar,
  .retro-nav__menu {
    transition: none;
  }
  .retro-nav__logo:hover {
    transform: none;
  }
}

/* ========================================================================
   FOCUS
   ======================================================================== */

.retro-nav__link:focus-visible,
.retro-nav__social:focus-visible,
.retro-nav__logo:focus-visible,
.retro-nav__toggle:focus-visible {
  outline: 3px solid currentColor;
  outline-offset: 3px;
}