/* ═══════════════════════════════════════════════════
   Sidebar — Premium Glass Design
   ═══════════════════════════════════════════════════ */

.sidebar {
  width: 250px;
  background: linear-gradient(180deg, rgba(13,21,37,.95) 0%, rgba(8,14,28,.98) 100%);
  backdrop-filter: blur(16px);
  border-right: 1px solid var(--border);
  padding: 22px 14px;
  flex-shrink: 0;
  position: fixed;
  height: 100vh;
  display: flex;
  flex-direction: column;
  z-index: 100;
  overflow-y: auto;
  box-shadow: 4px 0 20px rgba(0,0,0,.3);
}

/* ── Brand ── */
.brand { margin-bottom: 18px; padding: 0 4px; }
.brand-eyebrow {
  font-size: .58rem;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--accent);
  font-weight: 700;
  opacity: .8;
}
.brand-title {
  font-size: 1.3rem;
  font-weight: 800;
  margin: 8px 0 4px;
  line-height: 1.2;
  background: linear-gradient(135deg, var(--accent-bright) 0%, var(--purple) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}
.brand-sub {
  font-size: .68rem;
  color: var(--muted);
  font-weight: 500;
}

/* ── Selectors ── */
.selector-group {
  margin: 6px 0;
  padding: 10px 12px;
  background: var(--card);
  backdrop-filter: var(--blur);
  border-radius: 10px;
  border: 1px solid var(--border);
  transition: border-color .2s;
}
.selector-group:hover { border-color: var(--border-hover); }
.selector-group label {
  font-size: .6rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  display: block;
  margin-bottom: 5px;
  font-weight: 600;
}
.selector-group select {
  width: 100%;
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-size: .78rem;
  cursor: pointer;
  transition: border-color .2s;
  font-family: inherit;
}
.selector-group select:focus {
  border-color: var(--accent);
  outline: none;
  box-shadow: 0 0 0 2px var(--accent-glow);
}

/* ── Navigation ── */
.nav-list { margin-top: 14px; flex: 1; }
.nav-item {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 9px 12px;
  border-radius: 10px;
  font-size: .76rem;
  font-weight: 500;
  color: var(--muted);
  text-decoration: none;
  margin-bottom: 2px;
  transition: all .25s;
  border-left: 3px solid transparent;
  position: relative;
}
.nav-item:hover {
  background: rgba(79,143,247,.06);
  color: var(--text);
  padding-left: 14px;
}
.nav-item.active {
  background: linear-gradient(135deg, rgba(79,143,247,.1), rgba(168,85,247,.06));
  color: var(--accent-bright);
  border-left-color: var(--accent);
  font-weight: 600;
}
.nav-item.active::after {
  content: '';
  position: absolute;
  right: 8px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent);
}
.nav-icon { font-size: 14px; width: 20px; text-align: center; }

/* ── Footer ── */
.sidebar-footer {
  margin-top: auto;
  font-size: .62rem;
  color: var(--muted);
  padding: 10px 8px;
  border-top: 1px solid var(--border);
  line-height: 1.5;
}
.sidebar-footer strong {
  color: var(--text);
  display: block;
  margin-top: 3px;
  font-size: .65rem;
}

@media (max-width: 1024px) {
  .sidebar { display: none; }
}