@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
  --primary: #6366f1; --primary-light: #818cf8; --primary-dark: #4f46e5;
  --accent: #06b6d4; --accent-light: #22d3ee;
  --success: #10b981; --success-light: #34d399;
  --warning: #f59e0b; --warning-light: #fbbf24;
  --danger: #ef4444; --danger-light: #f87171;
  --info: #3b82f6;
  --bg-primary: #0a0e1a; --bg-secondary: #111827; --bg-card: #1a1f35;
  --bg-elevated: #1e2642; --bg-hover: #252d4a;
  --text-primary: #f1f5f9; --text-secondary: #94a3b8; --text-muted: #64748b;
  --border: rgba(148,163,184,.12); --border-light: rgba(148,163,184,.08);
  --glass: rgba(26,31,53,.7); --glass-border: rgba(99,102,241,.15);
  --radius: 12px; --radius-sm: 8px; --radius-lg: 16px;
  --shadow: 0 4px 24px rgba(0,0,0,.3);
  --transition: all .25s cubic-bezier(.4,0,.2,1);
}

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

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--bg-primary); color: var(--text-primary);
  line-height: 1.6; -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

a { color: var(--primary-light); text-decoration: none; }
img { max-width: 100%; }

/* ─── Buttons ─── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .625rem 1.25rem; border-radius: var(--radius-sm); font-weight: 600;
  font-size: .8125rem; border: none; cursor: pointer; transition: var(--transition);
  font-family: inherit; white-space: nowrap;
}
.btn-primary { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); color: #fff; }
.btn-primary:hover { background: linear-gradient(135deg, var(--primary-light), var(--primary)); transform: translateY(-1px); box-shadow: 0 4px 15px rgba(99,102,241,.3); }
.btn-success { background: linear-gradient(135deg, var(--success), #059669); color: #fff; }
.btn-success:hover { transform: translateY(-1px); box-shadow: 0 4px 15px rgba(16,185,129,.3); }
.btn-danger { background: linear-gradient(135deg, var(--danger), #dc2626); color: #fff; }
.btn-danger:hover { transform: translateY(-1px); }
.btn-warning { background: linear-gradient(135deg, var(--warning), #d97706); color: #fff; }
.btn-accent { background: linear-gradient(135deg, var(--accent), #0891b2); color: #fff; }
.btn-accent:hover { transform: translateY(-1px); box-shadow: 0 4px 15px rgba(6,182,212,.3); }
.btn-ghost { background: transparent; color: var(--text-secondary); border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--bg-hover); color: var(--text-primary); }
.btn-sm { padding: .4rem .875rem; font-size: .75rem; }
.btn-xs { padding: .25rem .625rem; font-size: .7rem; }
.btn-icon { width: 36px; height: 36px; padding: 0; border-radius: var(--radius-sm); }
.btn-icon-sm { width: 30px; height: 30px; padding: 0; border-radius: 6px; font-size: .75rem; }

/* ─── Cards ─── */
.card {
  background: var(--glass); backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border); border-radius: var(--radius-lg);
  padding: 1.5rem; transition: var(--transition);
}
.card:hover { border-color: rgba(99,102,241,.25); }
.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1.25rem; }
.card-header h3 { font-size: .9375rem; font-weight: 700; display: flex; align-items: center; gap: .5rem; }

/* ─── Stat Cards ─── */
.stat-card {
  background: var(--glass); backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border); border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem; transition: var(--transition);
  position: relative; overflow: hidden;
}
.stat-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0; transition: var(--transition);
}
.stat-card:hover::before { opacity: 1; }
.stat-card:hover { transform: translateY(-2px); border-color: rgba(99,102,241,.3); }
.stat-icon {
  width: 44px; height: 44px; border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.125rem; margin-bottom: .75rem;
}
.stat-value { font-size: 1.625rem; font-weight: 800; letter-spacing: -.02em; }
.stat-label { font-size: .75rem; color: var(--text-muted); margin-top: .25rem; font-weight: 500; }

/* ─── Forms ─── */
.form-group { margin-bottom: 1rem; }
.form-label { display: block; font-size: .8125rem; font-weight: 600; color: var(--text-secondary); margin-bottom: .375rem; }
.form-control {
  width: 100%; padding: .625rem .875rem; background: var(--bg-secondary);
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  color: var(--text-primary); font-size: .8125rem; font-family: inherit;
  transition: var(--transition); outline: none;
}
.form-control:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(99,102,241,.15); }
.form-control::placeholder { color: var(--text-muted); }
select.form-control { cursor: pointer; }
textarea.form-control { resize: vertical; min-height: 80px; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1rem; }

/* ─── Tables ─── */
.table-wrap { overflow-x: auto; border-radius: var(--radius); }
table { width: 100%; border-collapse: collapse; font-size: .8125rem; }
thead th {
  padding: .75rem 1rem; text-align: left; font-weight: 600;
  color: var(--text-muted); background: var(--bg-secondary);
  border-bottom: 1px solid var(--border); font-size: .75rem;
  text-transform: uppercase; letter-spacing: .04em;
}
tbody td { padding: .75rem 1rem; border-bottom: 1px solid var(--border-light); vertical-align: middle; }
tbody tr { transition: var(--transition); }
tbody tr:hover { background: var(--bg-hover); }

/* ─── Badges ─── */
.badge {
  display: inline-flex; align-items: center; gap: .3rem; padding: .2rem .6rem;
  border-radius: 50px; font-size: .7rem; font-weight: 600;
}
.badge-success { background: rgba(16,185,129,.15); color: var(--success-light); }
.badge-danger { background: rgba(239,68,68,.15); color: var(--danger-light); }
.badge-warning { background: rgba(245,158,11,.15); color: var(--warning-light); }
.badge-info { background: rgba(59,130,246,.15); color: #60a5fa; }
.badge-primary { background: rgba(99,102,241,.15); color: var(--primary-light); }
.badge-muted { background: rgba(100,116,139,.15); color: var(--text-muted); }
.badge-accent { background: rgba(6,182,212,.15); color: var(--accent-light); }

.badge-dot::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.badge-online::before { background: var(--success); animation: pulse-dot 2s infinite; }
.badge-offline::before { background: var(--danger); }

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .5; transform: scale(1.3); }
}

/* ─── Modal ─── */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.6); backdrop-filter: blur(4px);
  display: none; align-items: center; justify-content: center; z-index: 1000; padding: 1rem;
}
.modal-overlay.active { display: flex; animation: fadeIn .2s ease; }
.modal {
  background: var(--bg-card); border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg); width: 100%; max-width: 560px;
  max-height: 90vh; overflow-y: auto; animation: slideUp .3s ease;
}
.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.25rem 1.5rem; border-bottom: 1px solid var(--border);
}
.modal-header h3 { font-size: 1rem; font-weight: 700; display: flex; align-items: center; gap: .5rem; }
.modal-body { padding: 1.5rem; }
.modal-footer { padding: 1rem 1.5rem; border-top: 1px solid var(--border); display: flex; justify-content: flex-end; gap: .5rem; }
.modal-lg { max-width: 720px; }

/* ─── Tabs ─── */
.tabs { display: flex; gap: .25rem; border-bottom: 1px solid var(--border); margin-bottom: 1.5rem; overflow-x: auto; }
.tab-btn {
  padding: .625rem 1rem; font-size: .8125rem; font-weight: 600;
  color: var(--text-muted); background: none; border: none;
  border-bottom: 2px solid transparent; cursor: pointer; transition: var(--transition);
  white-space: nowrap; font-family: inherit;
}
.tab-btn:hover { color: var(--text-primary); }
.tab-btn.active { color: var(--primary-light); border-bottom-color: var(--primary); }
.tab-content { display: none; }
.tab-content.active { display: block; animation: fadeIn .3s ease; }

/* ─── Search ─── */
.search-box {
  position: relative; flex: 1; max-width: 320px;
}
.search-box input {
  width: 100%; padding: .5rem .875rem .5rem 2.25rem;
  background: var(--bg-secondary); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text-primary);
  font-size: .8125rem; font-family: inherit; transition: var(--transition);
}
.search-box input:focus { border-color: var(--primary); outline: none; }
.search-box i {
  position: absolute; left: .75rem; top: 50%; transform: translateY(-50%);
  color: var(--text-muted); font-size: .8rem;
}

/* ─── Empty / Toast ─── */
.empty-state {
  text-align: center; padding: 3rem 1rem; color: var(--text-muted);
}
.empty-state i { font-size: 2.5rem; margin-bottom: .75rem; display: block; opacity: .5; }
.empty-state p { font-size: .875rem; }

.toast-container { position: fixed; top: 1rem; right: 1rem; z-index: 2000; display: flex; flex-direction: column; gap: .5rem; }
.toast {
  padding: .75rem 1.25rem; border-radius: var(--radius-sm); font-size: .8125rem; font-weight: 500;
  color: #fff; animation: slideInRight .3s ease; min-width: 280px;
  display: flex; align-items: center; gap: .5rem; box-shadow: var(--shadow);
}
.toast-success { background: linear-gradient(135deg, #059669, var(--success)); }
.toast-danger { background: linear-gradient(135deg, #dc2626, var(--danger)); }
.toast-warning { background: linear-gradient(135deg, #d97706, var(--warning)); }
.toast-info { background: linear-gradient(135deg, #2563eb, var(--info)); }

/* ─── Utilities ─── */
.flex { display: flex; } .flex-col { flex-direction: column; }
.items-center { align-items: center; } .justify-between { justify-content: space-between; }
.gap-1 { gap: .5rem; } .gap-2 { gap: 1rem; } .gap-3 { gap: 1.5rem; }
.mt-2 { margin-top: 1rem; } .mt-3 { margin-top: 1.5rem; } .mt-4 { margin-top: 2rem; }
.mb-2 { margin-bottom: 1rem; } .mb-3 { margin-bottom: 1.5rem; }
.text-sm { font-size: .8125rem; } .text-xs { font-size: .75rem; }
.text-muted { color: var(--text-muted); } .text-success { color: var(--success); }
.text-danger { color: var(--danger); } .text-warning { color: var(--warning); }
.text-primary { color: var(--primary-light); } .text-accent { color: var(--accent-light); }
.fw-600 { font-weight: 600; } .fw-700 { font-weight: 700; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1.25rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.25rem; }
.stats-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 1.25rem; }

/* ─── Pagination ─── */
.pagination { display: flex; align-items: center; justify-content: center; gap: .25rem; margin-top: 1.5rem; }
.pagination button {
  width: 34px; height: 34px; border-radius: var(--radius-sm); border: 1px solid var(--border);
  background: transparent; color: var(--text-secondary); cursor: pointer;
  font-size: .8rem; transition: var(--transition); display: flex; align-items: center; justify-content: center;
}
.pagination button:hover { background: var(--bg-hover); }
.pagination button.active { background: var(--primary); color: #fff; border-color: var(--primary); }

/* ─── Toolbar ─── */
.toolbar { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; margin-bottom: 1.5rem; }
.toolbar-left { display: flex; align-items: center; gap: .75rem; flex-wrap: wrap; }
.toolbar-right { display: flex; align-items: center; gap: .5rem; }
.filter-select {
  padding: .45rem .75rem; background: var(--bg-secondary); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text-primary); font-size: .8rem; font-family: inherit;
}

/* ─── Animations ─── */
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes slideInRight { from { opacity: 0; transform: translateX(100px); } to { opacity: 1; transform: translateX(0); } }
@keyframes shimmer { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } }

/* ─── Responsive ─── */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .form-row-3 { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .toolbar { flex-direction: column; align-items: stretch; }
  .toolbar-left, .toolbar-right { flex-wrap: wrap; }
  .search-box { max-width: 100%; }
}