/* ══════════════════════════════════════
   TopBar
══════════════════════════════════════ */

.topbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: 44px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  z-index: 200;
  box-shadow: var(--shadow);
  transition: background 0.3s, border-color 0.3s;
}

.topbar-inner {
  max-width: var(--page-width);
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
  padding: 0 16px;
  gap: 10px;
}

.brand-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  flex: 1;
  min-width: 0;
}

.logo-pill {
  background: #0D1B2A;
  border-radius: 100px;
  padding: 3px 6px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
}

.brand-text {
  font-size: var(--fs-14);
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
}

.topbar-title {
  font-size: var(--fs-12);
  font-weight: 500;
  color: var(--ink);
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.back-btn {
  height: 28px;
  padding: 0 7px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--ink-mid);
  font-family: var(--font-sans);
  font-size: var(--fs-12);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 5px;
  transition: all 0.15s;
  flex-shrink: 0;
}
.back-btn:hover { border-color: var(--accent); color: var(--accent); }

.topbar-right {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  flex-shrink: 0;
}

/* ══════════════════════════════════════
   BottomNav
══════════════════════════════════════ */

.bottom-nav {
  position: fixed;
  bottom: 0; left: 0; right: 0;
  height: 48px;
  background: var(--bottom-bg);
  border-top: 1px solid var(--border);
  z-index: 200;
  transition: background 0.3s;
}

.nav-inner {
  max-width: var(--page-width);
  margin: 0 auto;
  height: 100%;
  display: flex;
  align-items: center;
}

.nav-item {
  flex: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  cursor: pointer;
  border: none;
  background: transparent;
  font-family: var(--font-sans);
  transition: opacity 0.15s;
  padding: 0;
}
.nav-item:hover { opacity: 0.75; }

.nav-icon {
  width: 16px;
  height: 16px;
  color: var(--ink);
  display: flex;
  align-items: center;
  justify-content: center;
}
.nav-icon svg { width: 100%; height: 100%; }

.nav-item.nav-active .nav-icon { color: var(--accent); }

.nav-label {
  font-size: var(--fs-9);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--ink);
}
.nav-item.nav-active .nav-label { color: var(--accent); }