@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

/* ── Variables ──────────────────────────────────────────────────────────────── */
:root {
  --bg:           #F8FAFC;
  --bg2:          #FFFFFF;
  --bg3:          #F1F5F9;
  --card:         rgba(0,0,0,0.03);
  --card-hover:   rgba(0,0,0,0.06);
  --border:       rgba(0,0,0,0.1);
  --border-glow:  rgba(124,58,237,0.25);

  --primary:      #7C3AED;
  --primary-l:    #6D28D9;
  --primary-d:    #4C1D95;
  --secondary:    #0EA5E9;
  --accent:       #F59E0B;
  --success:      #10B981;
  --danger:       #EF4444;
  --warning:      #F59E0B;

  --txt:          #0F172A;
  --txt2:         #475569;
  --txt3:         #94A3B8;

  --sidebar-w:    260px;
  --topbar-h:     64px;
  --radius:       12px;
  --radius-lg:    18px;
  --shadow:       0 10px 30px rgba(0,0,0,0.08);
  --shadow-glow:  0 0 24px rgba(124,58,237,0.15);

  --font:         'Inter', sans-serif;
  --mono:         'JetBrains Mono', monospace;
}

/* ── Reset ──────────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 14px; scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--bg); color: var(--txt); min-height: 100vh; overflow-x: hidden; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { display: block; max-width: 100%; }
button { cursor: pointer; font-family: var(--font); border: none; outline: none; }
input, select, textarea { font-family: var(--font); }
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg2); }
::-webkit-scrollbar-thumb { background: var(--primary-d); border-radius: 99px; }

/* ── Layout ─────────────────────────────────────────────────────────────────── */
.app-wrap { display: flex; min-height: 100vh; }

/* ── Sidebar ────────────────────────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  background: var(--bg2);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0;
  height: 100vh;
  z-index: 100;
  transition: transform .3s;
}
.sidebar-logo {
  padding: 24px 20px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border);
}
.sidebar-logo .logo-icon {
  width: 40px; height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-size: 20px;
  box-shadow: 0 0 20px rgba(124,58,237,0.4);
}
.sidebar-logo .logo-text { font-size: 1.1rem; font-weight: 700; color: var(--txt); }
.sidebar-logo .logo-sub  { font-size: .7rem; color: var(--txt3); margin-top: 1px; }

.sidebar-nav { padding: 16px 12px; flex: 1; overflow-y: auto; }
.nav-section-label {
  font-size: .65rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--txt3);
  padding: 12px 8px 6px;
}
.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 9px;
  color: var(--txt2);
  font-size: .875rem;
  font-weight: 500;
  transition: all .2s;
  margin-bottom: 2px;
  position: relative;
}
.nav-item:hover { background: var(--card-hover); color: var(--txt); }
.nav-item.active {
  background: linear-gradient(90deg, rgba(124,58,237,0.2), rgba(124,58,237,0.05));
  color: var(--primary-l);
  border: 1px solid rgba(124,58,237,0.25);
}
.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0; top: 50%;
  transform: translateY(-50%);
  width: 3px; height: 60%;
  background: var(--primary);
  border-radius: 99px;
}
.nav-item .icon { width: 18px; height: 18px; opacity: .85; flex-shrink: 0; }
.nav-badge {
  margin-left: auto;
  background: var(--primary);
  color: #fff;
  font-size: .6rem;
  font-weight: 700;
  padding: 2px 7px;
  border-radius: 99px;
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 10px;
}
.sidebar-footer .avatar {
  width: 34px; height: 34px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: .8rem;
  font-weight: 700;
  color: #fff;
}
.sidebar-footer .user-info .name { font-size: .8rem; font-weight: 600; }
.sidebar-footer .user-info .role { font-size: .65rem; color: var(--txt3); }

/* ── Main ───────────────────────────────────────────────────────────────────── */
.main-wrap { margin-left: var(--sidebar-w); flex: 1; min-height: 100vh; display: flex; flex-direction: column; }

.topbar {
  height: var(--topbar-h);
  background: rgba(255,255,255,0.8);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 0 28px;
  display: flex;
  align-items: center;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 50;
}
.topbar .page-title { font-size: 1.1rem; font-weight: 700; flex: 1; }
.topbar .page-title span { color: var(--txt3); font-weight: 400; font-size: .85rem; margin-left: 8px; }

.search-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 7px 14px;
  width: 220px;
  transition: border-color .2s;
}
.search-box:focus-within { border-color: var(--primary); }
.search-box input { background: none; border: none; color: var(--txt); font-size: .85rem; width: 100%; outline: none; }
.search-box input::placeholder { color: var(--txt3); }
.search-box svg { color: var(--txt3); width: 14px; height: 14px; }

.topbar-actions { display: flex; align-items: center; gap: 10px; }
.topbar-btn {
  width: 36px; height: 36px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  display: grid;
  place-items: center;
  color: var(--txt2);
  transition: all .2s;
}
.topbar-btn:hover { background: var(--card-hover); color: var(--txt); border-color: var(--primary); }
.topbar-avatar {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  border-radius: 8px;
  display: grid;
  place-items: center;
  font-size: .8rem;
  font-weight: 700;
  cursor: pointer;
}

/* ── Page Content ───────────────────────────────────────────────────────────── */
.page-content { padding: 28px; flex: 1; }
.page-header { margin-bottom: 24px; }
.page-header h1 { font-size: 1.6rem; font-weight: 800; }
.page-header p  { color: var(--txt2); margin-top: 4px; font-size: .875rem; }

/* ── Stat Cards ─────────────────────────────────────────────────────────────── */
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 28px; }
.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: all .25s;
  position: relative;
  overflow: hidden;
}
.stat-card::after {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 80px; height: 80px;
  border-radius: 50%;
  filter: blur(30px);
  opacity: .15;
}
.stat-card.purple::after { background: var(--primary); }
.stat-card.blue::after   { background: var(--secondary); }
.stat-card.green::after  { background: var(--success); }
.stat-card.amber::after  { background: var(--accent); }

.stat-card:hover { background: var(--card-hover); border-color: rgba(124,58,237,0.3); transform: translateY(-2px); box-shadow: var(--shadow-glow); }
.stat-icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  font-size: 1.3rem;
  margin-bottom: 14px;
}
.stat-icon.purple { background: rgba(124,58,237,0.15); }
.stat-icon.blue   { background: rgba(14,165,233,0.15); }
.stat-icon.green  { background: rgba(16,185,129,0.15); }
.stat-icon.amber  { background: rgba(245,158,11,0.15); }
.stat-val { font-size: 2rem; font-weight: 800; line-height: 1; }
.stat-label { font-size: .75rem; color: var(--txt3); margin-top: 4px; font-weight: 500; }
.stat-change { font-size: .75rem; margin-top: 10px; display: flex; align-items: center; gap: 4px; }
.stat-change.up   { color: var(--success); }
.stat-change.down { color: var(--danger); }

/* ── Cards ──────────────────────────────────────────────────────────────────── */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.card-header {
  padding: 18px 22px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
}
.card-header h2 { font-size: 1rem; font-weight: 700; flex: 1; }
.card-header p  { font-size: .8rem; color: var(--txt3); }
.card-body { padding: 22px; }

/* ── Table ──────────────────────────────────────────────────────────────────── */
.table-wrapper { overflow-x: auto; border-radius: var(--radius-lg); border: 1px solid var(--border); }
table { width: 100%; border-collapse: collapse; white-space: nowrap; }
thead th {
  background: var(--bg3);
  padding: 12px 16px;
  text-align: left;
  font-size: .72rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--txt3);
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  user-select: none;
  transition: color .2s;
}
thead th:hover { color: var(--primary-l); }
thead th.sorted { color: var(--primary-l); }
thead th .sort-icon { display: inline-block; margin-left: 4px; opacity: .5; }
thead th.sorted .sort-icon { opacity: 1; }
tbody tr {
  border-bottom: 1px solid var(--border);
  transition: background .15s;
}
tbody tr:last-child { border-bottom: none; }
tbody tr:hover { background: var(--card-hover); }
tbody td { padding: 13px 16px; font-size: .85rem; color: var(--txt2); vertical-align: middle; }
tbody td:first-child { color: var(--txt3); font-size: .75rem; font-family: var(--mono); }

.row-num { color: var(--txt3); font-family: var(--mono); font-size: .75rem; }

/* ── Badges ─────────────────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 99px;
  font-size: .7rem;
  font-weight: 600;
}
.badge-central  { background: rgba(124,58,237,.1);  color: #5B21B6; border: 1px solid rgba(124,58,237,.2); }
.badge-state    { background: rgba(14,165,233,.1);   color: #0369A1; border: 1px solid rgba(14,165,233,.2); }
.badge-intl     { background: rgba(245,158,11,.1);   color: #B45309; border: 1px solid rgba(245,158,11,.2); }
.badge-active   { background: rgba(16,185,129,.1);   color: #047857; border: 1px solid rgba(16,185,129,.2); }
.badge-inactive { background: rgba(239,68,68,.1);    color: #B91C1C; border: 1px solid rgba(239,68,68,.2);  }

/* ── Buttons ────────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 18px;
  border-radius: 8px;
  font-size: .85rem;
  font-weight: 600;
  transition: all .2s;
  cursor: pointer;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-d));
  color: #fff;
  box-shadow: 0 4px 14px rgba(124,58,237,.35);
}
.btn-primary:hover { opacity: .9; transform: translateY(-1px); box-shadow: 0 6px 20px rgba(124,58,237,.5); }
.btn-secondary {
  background: var(--card);
  border: 1px solid var(--border);
  color: var(--txt2);
}
.btn-secondary:hover { background: var(--card-hover); color: var(--txt); border-color: var(--primary); }
.btn-danger {
  background: rgba(239,68,68,.15);
  border: 1px solid rgba(239,68,68,.3);
  color: #FCA5A5;
}
.btn-danger:hover { background: rgba(239,68,68,.25); }
.btn-sm { padding: 6px 12px; font-size: .78rem; }
.btn-icon { width: 32px; height: 32px; padding: 0; border-radius: 7px; background: var(--card); border: 1px solid var(--border); color: var(--txt2); }
.btn-icon:hover { background: var(--card-hover); color: var(--primary-l); border-color: var(--primary); }

/* ── Form Elements ──────────────────────────────────────────────────────────── */
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: .8rem; font-weight: 600; color: var(--txt2); margin-bottom: 6px; }
.form-control {
  width: 100%;
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 14px;
  color: var(--txt);
  font-size: .875rem;
  font-family: var(--font);
  transition: border-color .2s;
  outline: none;
}
.form-control:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(124,58,237,.1); }
.form-control::placeholder { color: var(--txt3); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

/* ── Modal ──────────────────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.7);
  backdrop-filter: blur(6px);
  z-index: 200;
  display: none;
  place-items: center;
}
.modal-overlay.open { display: grid; }
.modal {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  width: 500px;
  max-width: 95vw;
  animation: modalIn .25s ease;
  box-shadow: 0 20px 60px rgba(0,0,0,.6);
}
@keyframes modalIn { from { opacity:0; transform:translateY(-20px) scale(.97); } to { opacity:1; transform:none; } }
.modal-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 22px; }
.modal-header h3 { font-size: 1.1rem; font-weight: 700; }
.modal-close { font-size: 1.2rem; background: none; color: var(--txt3); transition: color 0.2s; }
.modal-close:hover { color: var(--txt); }
.modal-footer { display: flex; gap: 10px; justify-content: flex-end; margin-top: 22px; }

/* ── Tree View ──────────────────────────────────────────────────────────────── */
.tree-panel {
  display: grid;
  grid-template-columns: 280px 280px 1fr;
  gap: 0;
  min-height: calc(100vh - var(--topbar-h) - 60px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.tree-col {
  border-right: 1px solid var(--border);
  overflow-y: auto;
  max-height: calc(100vh - 200px);
}
.tree-col:last-child { border-right: none; }
.tree-col-header {
  padding: 14px 16px;
  background: var(--bg3);
  border-bottom: 1px solid var(--border);
  font-size: .72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--txt3);
  display: flex;
  align-items: center;
  gap: 8px;
  position: sticky;
  top: 0;
  z-index: 1;
}
.tree-item {
  padding: 11px 16px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  transition: all .15s;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .85rem;
}
.tree-item:hover { background: var(--card-hover); }
.tree-item.active { background: rgba(124,58,237,.12); color: var(--primary-l); border-left: 3px solid var(--primary); }
.tree-item .item-icon { width: 28px; height: 28px; border-radius: 7px; background: var(--card); display: grid; place-items: center; font-size: .9rem; flex-shrink: 0; }
.tree-item .item-name  { font-weight: 500; flex: 1; }
.tree-item .item-arrow { color: var(--txt3); font-size: .75rem; }
.tree-loading { padding: 20px; text-align: center; color: var(--txt3); font-size: .85rem; }

/* Detail Panel */
.detail-panel { padding: 22px; overflow-y: auto; max-height: calc(100vh - 200px); }
.detail-panel .detail-title { font-size: 1.2rem; font-weight: 700; margin-bottom: 6px; }
.detail-panel .detail-sub   { color: var(--txt3); font-size: .8rem; margin-bottom: 18px; }
.detail-section { margin-bottom: 20px; }
.detail-section h4 { font-size: .8rem; font-weight: 700; text-transform: uppercase; letter-spacing: .06em; color: var(--txt3); margin-bottom: 10px; }
.detail-section p  { color: var(--txt2); font-size: .875rem; line-height: 1.7; }
.q-types { display: flex; flex-wrap: wrap; gap: 8px; }
.q-type-chip {
  padding: 5px 12px;
  background: rgba(14,165,233,.1);
  border: 1px solid rgba(14,165,233,.25);
  border-radius: 99px;
  color: #7DD3FC;
  font-size: .75rem;
  font-weight: 600;
}
.empty-detail {
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--txt3);
}
.empty-detail .empty-icon { font-size: 3rem; opacity: .3; }
.empty-detail p { font-size: .9rem; }

/* ── Loading Spinner ────────────────────────────────────────────────────────── */
.spinner {
  display: inline-block;
  width: 20px; height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin .7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loading-row { text-align: center; padding: 40px; }
.loading-row .spinner { width: 32px; height: 32px; border-width: 3px; }

/* ── Toast ──────────────────────────────────────────────────────────────────── */
.toast-container { position: fixed; bottom: 24px; right: 24px; z-index: 999; display: flex; flex-direction: column; gap: 10px; }
.toast {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 18px;
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .875rem;
  box-shadow: var(--shadow);
  animation: toastIn .3s ease;
  max-width: 320px;
}
.toast.success { border-color: rgba(16,185,129,.3); }
.toast.error   { border-color: rgba(239,68,68,.3); }
.toast-icon    { font-size: 1.1rem; }
@keyframes toastIn { from { opacity:0; transform:translateX(20px); } to { opacity:1; transform:none; } }
@keyframes toastOut { to { opacity:0; transform:translateX(20px); } }

/* ── Filter/Toolbar Row ─────────────────────────────────────────────────────── */
.toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  flex-wrap: wrap;
}
.toolbar .search-box { width: 260px; }
.toolbar .spacer { flex: 1; }

/* ── Grid Layouts ───────────────────────────────────────────────────────────── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 20px; }
@media (max-width: 1024px) { .grid-3 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 768px)  { .grid-2, .grid-3 { grid-template-columns: 1fr; } .tree-panel { grid-template-columns: 1fr; } }

/* ── Misc ───────────────────────────────────────────────────────────────────── */
.divider { height: 1px; background: var(--border); margin: 20px 0; }
.tag { padding: 2px 8px; background: var(--card); border: 1px solid var(--border); border-radius: 5px; font-size: .72rem; font-family: var(--mono); color: var(--txt3); }
.text-muted  { color: var(--txt3); }
.text-primary { color: var(--primary-l); }
.fw-bold { font-weight: 700; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.flex      { display: flex; }
.flex-col  { flex-direction: column; }
.items-center { align-items: center; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.ml-auto { margin-left: auto; }

/* ── Animations ─────────────────────────────────────────────────────────────── */
.fade-in { animation: fadeIn .35s ease; }
@keyframes fadeIn { from { opacity:0; transform:translateY(8px); } to { opacity:1; transform:none; } }
.pulse { animation: pulse 2s ease-in-out infinite; }
@keyframes pulse { 0%,100% { opacity:1; } 50% { opacity:.5; } }

/* ── AI generator progress bar ──────────────────────────────────────────────── */
.ai-progress {
  height: 3px;
  background: var(--border);
  border-radius: 99px;
  overflow: hidden;
  margin-top: 8px;
}
.ai-progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
  border-radius: 99px;
  animation: progressAnim 1.5s ease-in-out infinite;
}
@keyframes progressAnim { 0% { width:0%; margin-left:0; } 50% { width:60%; } 100% { width:0%; margin-left:100%; } }