/* ╔══════════════════════════════════════════════════════════╗
   ║  PSVdle – nav.css                                       ║
   ║  Responsywna nawigacja z hamburger menu (mobile/tablet) ║
   ╚══════════════════════════════════════════════════════════╝ */

/* ── HEADER ─────────────────────────────────────────────────── */
header {
  position: relative; z-index: 200;
  background: #16213E;
  border-bottom: 3px solid #E94560;
  padding: 0 2rem;
  display: flex; align-items: center; justify-content: space-between;
  height: 68px;
  gap: 1rem;
}

.logo {
  font-family: 'Anton', sans-serif;
  font-size: 2.2rem; letter-spacing: 4px;
  color: #fff; text-decoration: none;
  flex-shrink: 0; line-height: 1;
}
.logo span { color: #E94560; }

/* ── DESKTOP NAV ────────────────────────────────────────────── */
nav {
  display: flex; align-items: center; gap: .2rem;
}
nav a {
  color: #8892A4; text-decoration: none;
  font-family: 'Oswald', sans-serif;
  font-weight: 600; font-size: .85rem;
  letter-spacing: 1.5px; text-transform: uppercase;
  padding: .4rem .75rem; border-radius: 4px;
  transition: color .2s, background .2s;
  white-space: nowrap;
}
nav a:hover  { color: #fff; background: rgba(255,255,255,.06); }
nav a.active { color: #E94560; }

/* ── HAMBURGER BUTTON (hidden on desktop) ───────────────────── */
.nav-toggle {
  display: none;
  flex-direction: column; justify-content: center; gap: 5px;
  width: 40px; height: 40px;
  background: none; border: none; cursor: pointer;
  padding: 6px; border-radius: 8px;
  transition: background .2s;
  flex-shrink: 0;
}
.nav-toggle:hover { background: rgba(255,255,255,.07); }
.nav-toggle span {
  display: block; height: 2px; border-radius: 2px;
  background: #fff;
  transition: transform .3s ease, opacity .3s ease, width .3s ease;
  transform-origin: center;
}
/* Animated X when open */
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; width: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── MOBILE DRAWER ──────────────────────────────────────────── */
@media (max-width: 700px) {
  header { padding: 0 1.2rem; }

  .nav-toggle { display: flex; }

  /* Streak badge moves inside mobile nav drawer */
  .streak-badge { display: none !important; }

  nav {
    position: fixed;
    top: 68px; left: 0; right: 0;
    background: #16213E;
    border-bottom: 3px solid #E94560;
    flex-direction: column; align-items: stretch;
    padding: .6rem 1.2rem 1rem;
    gap: .2rem;
    transform: translateY(-110%);
    opacity: 0;
    pointer-events: none;
    transition: transform .3s cubic-bezier(.4,0,.2,1), opacity .3s ease;
    z-index: 199;
    box-shadow: 0 12px 32px rgba(0,0,0,.5);
  }
  nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: all;
  }
  nav a {
    font-size: 1rem; letter-spacing: 2px;
    padding: .75rem 1rem;
    border-radius: 8px;
    border-bottom: 1px solid rgba(255,255,255,.05);
  }
  nav a:last-child { border-bottom: none; }
}

/* ── TABLET (between 700–1000px) ────────────────────────────── */
@media (min-width: 701px) and (max-width: 1000px) {
  header { padding: 0 1.5rem; }
  nav a { font-size: .78rem; letter-spacing: 1px; padding: .4rem .55rem; }
  .logo  { font-size: 1.9rem; }
}