/* nav.css — Global nav: hamburger button, slide-out drawer (mobile),
   persistent sidebar (desktop), player identity block, notification dots.
   Does NOT own: header, section layout, game mechanics. */

/* ── Hamburger button ─────────────────────────────────────── */
.nav-hamburger {
  position: fixed;
  top: 0.625rem;
  left: 1rem;
  z-index: 1200;
  display: none; /* shown by nav.js when logged in */
  align-items: center;
  justify-content: center;
  /* 44×44px meets iOS/Android minimum touch-target size */
  width: 44px;
  height: 44px;
  background: rgba(10, 0, 18, 0.85);
  border: 1px solid rgba(157, 78, 221, 0.35);
  border-radius: 8px;
  cursor: pointer;
  color: var(--text, #e0d4f7);
  font-size: 1.2rem;
  transition: background 0.15s, border-color 0.15s;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.nav-hamburger:hover,
.nav-hamburger:focus-visible {
  background: rgba(157, 78, 221, 0.2);
  border-color: var(--neon-purple, #9d4edd);
  outline: none;
}
.nav-hamburger.nav-open {
  border-color: var(--neon-purple, #9d4edd);
}

/* ── Backdrop (mobile only) ──────────────────────────────── */
.nav-backdrop {
  position: fixed;
  inset: 0;
  z-index: 1199;
  background: rgba(0, 0, 0, 0.65);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.25s, visibility 0.25s;
}
.nav-backdrop.nav-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

/* ── Sidebar / drawer shared ────────────────────────────────── */
.nav-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: 260px;
  height: 100dvh;
  z-index: 1200;
  background: #130022;
  border-right: 1px solid rgba(157, 78, 221, 0.25);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), width 0.25s ease;
  box-shadow: 4px 0 32px rgba(0, 0, 0, 0.6);
}

/* Mobile: off-screen by default, slides in */
@media (max-width: 768px) {
  .nav-sidebar {
    transform: translateX(-100%);
  }
  .nav-sidebar.nav-open {
    transform: translateX(0);
  }

  /* When hamburger is visible (logged in), push header logo right so it
     doesn't sit behind the fixed 44px hamburger button at left:1rem.
     Body class set by nav.js _onAuthChange(). */
  body.nav-hamburger-visible header {
    padding-left: calc(1rem + 44px + 0.5rem);
  }
}

/* Desktop ≥1200px: persistent expanded by default */
@media (min-width: 1200px) {
  .nav-sidebar {
    transform: translateX(0);
  }
  /* When collapsed to icon-only rail */
  .nav-sidebar.nav-collapsed {
    width: 64px;
  }
}

/* Desktop 769–1199px: hidden by default, toggle opens */
@media (min-width: 769px) and (max-width: 1199px) {
  .nav-sidebar {
    transform: translateX(-100%);
  }
  .nav-sidebar.nav-open {
    transform: translateX(0);
  }
}

/* ── Sidebar header ─────────────────────────────────────────── */
.nav-sidebar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid rgba(157, 78, 221, 0.2);
  flex-shrink: 0;
  min-height: 56px;
}
.nav-sidebar-logo {
  font-size: 0.85rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  background: linear-gradient(135deg, #9d4edd, #e040fb);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  white-space: nowrap;
  overflow: hidden;
  transition: opacity 0.2s;
}
.nav-sidebar.nav-collapsed .nav-sidebar-logo {
  opacity: 0;
  width: 0;
}
.nav-sidebar-close {
  background: none;
  border: none;
  color: var(--text-dim, #8b7fb0);
  font-size: 1rem;
  cursor: pointer;
  padding: 0.3rem 0.4rem;
  border-radius: 4px;
  line-height: 1;
  flex-shrink: 0;
}
.nav-sidebar-close:hover { color: var(--text, #e0d4f7); background: rgba(255,255,255,0.08); }

/* ── Player identity block ──────────────────────────────────── */
.nav-identity {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 1rem 1rem 0.85rem;
  border-bottom: 1px solid rgba(157, 78, 221, 0.15);
  flex-shrink: 0;
  overflow: hidden;
}
.nav-identity-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, #4a1a8a, #9d4edd);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
  border: 2px solid rgba(157, 78, 221, 0.4);
}
.nav-identity-info {
  overflow: hidden;
  transition: opacity 0.2s, width 0.2s;
  min-width: 0;
}
.nav-sidebar.nav-collapsed .nav-identity-info {
  opacity: 0;
  width: 0;
  overflow: hidden;
}
.nav-identity-username {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text, #e0d4f7);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.nav-identity-meta {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.2rem;
  font-size: 0.72rem;
  color: var(--text-dim, #8b7fb0);
}
.nav-identity-shards { color: #ffd700; font-weight: 600; }
.nav-identity-tier   { color: #b56cf5; }

/* ── Nav list ──────────────────────────────────────────────── */
.nav-list {
  flex: 1;
  overflow-y: auto;
  padding: 0.5rem 0;
  display: flex;
  flex-direction: column;
  scrollbar-width: none;
}
.nav-list::-webkit-scrollbar { display: none; }

.nav-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.8rem 1rem;
  background: none;
  border: none;
  color: var(--text-dim, #8b7fb0);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  width: 100%;
  transition: background 0.12s, color 0.12s, border-left-color 0.12s;
  border-left: 3px solid transparent;
  white-space: nowrap;
  overflow: hidden;
  text-decoration: none;
}
.nav-item:hover {
  background: rgba(157, 78, 221, 0.1);
  color: var(--text, #e0d4f7);
  border-left-color: rgba(157, 78, 221, 0.5);
}
.nav-item:focus-visible {
  outline: 2px solid var(--neon-purple, #9d4edd);
  outline-offset: -2px;
}

/* Active route */
.nav-item.nav-active {
  background: rgba(157, 78, 221, 0.18);
  color: #d4a4ff;
  border-left-color: var(--gold, #ffd700);
}
.nav-item.nav-active .nav-item-icon {
  filter: drop-shadow(0 0 6px rgba(157, 78, 221, 0.8));
}

.nav-item-icon {
  font-size: 1.05rem;
  width: 22px;
  text-align: center;
  flex-shrink: 0;
}
.nav-item-label {
  transition: opacity 0.2s, width 0.2s;
  min-width: 0;
  overflow: hidden;
}
.nav-sidebar.nav-collapsed .nav-item-label {
  opacity: 0;
  width: 0;
}

/* Notification dot */
.nav-dot {
  position: absolute;
  top: 50%;
  right: 0.85rem;
  transform: translateY(-50%);
  width: 8px;
  height: 8px;
  background: var(--gold, #ffd700);
  border-radius: 50%;
  box-shadow: 0 0 6px rgba(255, 215, 0, 0.8);
  display: none;
  flex-shrink: 0;
}
.nav-dot.visible { display: block; }

/* Collapsed: dot moves to corner of icon */
.nav-sidebar.nav-collapsed .nav-dot {
  top: 0.6rem;
  right: 0.6rem;
  transform: none;
}

/* Divider */
.nav-divider {
  height: 1px;
  background: rgba(157, 78, 221, 0.12);
  margin: 0.4rem 0.85rem;
  flex-shrink: 0;
}

/* ── Bottom section (settings + logout) ─────────────────────── */
.nav-bottom {
  border-top: 1px solid rgba(157, 78, 221, 0.15);
  padding: 0.4rem 0;
  flex-shrink: 0;
}

/* Logout button — red tint */
.nav-item-logout {
  color: #ff6b6b;
}
.nav-item-logout:hover {
  background: rgba(255, 77, 109, 0.1);
  color: #ff4d6d;
  border-left-color: #ff4d6d;
}

/* ── Desktop sidebar layout shift ─────────────────────────── */
/* When sidebar is persistent (≥1200px) shift #app content right */
@media (min-width: 1200px) {
  body.nav-sidebar-expanded #app {
    margin-left: 260px;
    transition: margin-left 0.25s ease;
  }
  body.nav-sidebar-collapsed #app {
    margin-left: 64px;
    transition: margin-left 0.25s ease;
  }
}

/* ── Logout confirm dialog ──────────────────────────────────── */
.nav-logout-dialog {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(0, 0, 0, 0.75);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}
.nav-logout-dialog.open { display: flex; }
.nav-logout-card {
  background: #1a0033;
  border: 1px solid rgba(157, 78, 221, 0.4);
  border-radius: 12px;
  padding: 1.5rem 1.75rem;
  max-width: 320px;
  width: 100%;
  text-align: center;
}
.nav-logout-card h3 { margin-bottom: 0.5rem; font-size: 1.1rem; }
.nav-logout-card p { font-size: 0.85rem; color: var(--text-dim, #8b7fb0); margin-bottom: 1.25rem; }
.nav-logout-actions { display: flex; gap: 0.75rem; justify-content: center; }
.nav-logout-confirm {
  padding: 0.5rem 1.25rem;
  background: #ff4d6d;
  color: #fff;
  border: none;
  border-radius: 6px;
  font-weight: 700;
  font-size: 0.88rem;
  cursor: pointer;
  transition: background 0.15s;
}
.nav-logout-confirm:hover { background: #e03050; }
.nav-logout-cancel {
  padding: 0.5rem 1.25rem;
  background: transparent;
  color: var(--text-dim, #8b7fb0);
  border: 1px solid rgba(157,78,221,0.3);
  border-radius: 6px;
  font-size: 0.88rem;
  cursor: pointer;
  transition: background 0.15s;
}
.nav-logout-cancel:hover { background: rgba(255,255,255,0.05); color: var(--text, #e0d4f7); }

/* ── Tooltip for collapsed icons ─────────────────────────── */
@media (min-width: 1200px) {
  .nav-sidebar.nav-collapsed .nav-item {
    justify-content: center;
    padding: 0.8rem 0;
  }
  .nav-sidebar.nav-collapsed .nav-dot {
    right: 8px;
  }
}