/* ── Neon Kinetic – Shared Theme ── */
:root {
  --neon:      #00FF7F;
  --neon2:     #CCFF00;
  --purple:    #7000FF;
  --bg:        #0a0a0a;
  --bg2:       #111111;
  --card:      #161616;
  --border:    #222;
  --text:      #e0e0e0;
  --muted:     #666;
  --sidebar-w: 220px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Noto Sans KR', sans-serif;
  font-weight: 300;
  overflow-x: hidden;
}

/* Scanline overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent, transparent 2px,
    rgba(0,255,127,0.012) 2px, rgba(0,255,127,0.012) 4px
  );
  pointer-events: none;
  z-index: 9999;
}

/* Scrollbar */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--border); }
::-webkit-scrollbar-thumb:hover { background: var(--muted); }

/* ── APP LAYOUT ── */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* ── SIDEBAR ── */
#sidebar {
  width: var(--sidebar-w);
  min-width: var(--sidebar-w);
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  flex-shrink: 0;
  z-index: 100;
}

.sidebar-logo {
  display: block;
  font-family: 'Barlow Condensed', sans-serif;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.25em;
  color: var(--neon);
  text-decoration: none;
  padding: 1.5rem 1.25rem;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.sidebar-nav { padding: 1rem 0; }

.sidebar-section { margin-bottom: 0.25rem; }

.sidebar-group-label {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.58rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--muted);
  padding: 0.75rem 1.25rem 0.3rem;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.25rem;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.9rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
  text-decoration: none;
  transition: color 0.15s, background 0.15s;
  position: relative;
}

.sidebar-link:hover {
  color: var(--text);
  background: rgba(255,255,255,0.03);
}

.sidebar-link.active { color: var(--neon); }
.sidebar-link.active::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: var(--neon);
}

/* ── MAIN CONTENT ── */
.main-content {
  flex: 1;
  min-width: 0;
}

/* ── COMMON COMPONENTS ── */
.tag {
  display: inline-block;
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.65rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--neon);
  border: 1px solid var(--neon);
  padding: 0.2em 0.65em;
  margin-bottom: 0.75rem;
}

.btn {
  font-family: 'Barlow Condensed', sans-serif;
  font-size: 0.72rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--muted);
  padding: 0.4em 1em;
  cursor: pointer;
  transition: all 0.2s;
}
.btn:hover { color: var(--neon); border-color: rgba(0,255,127,0.4); }
.btn.primary { color: var(--neon); border-color: rgba(0,255,127,0.5); }
.btn.primary:hover { background: rgba(0,255,127,0.07); }

/* ── MOBILE SIDEBAR ── */
.sidebar-toggle {
  display: none;
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 200;
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--neon);
  width: 38px;
  height: 38px;
  cursor: pointer;
  font-size: 1rem;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  z-index: 99;
}

@media (max-width: 768px) {
  .sidebar-toggle { display: flex; }

  #sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    transform: translateX(-100%);
    transition: transform 0.25s ease;
    z-index: 150;
  }
  #sidebar.open { transform: translateX(0); }
  .sidebar-overlay.open { display: block; }

  .main-content { padding-top: 3.25rem; }
}