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

:root {
  --bg: #030014;
  --bg2: #0f0a29;
  --card: rgba(15, 10, 41, 0.4);
  --border: rgba(255, 255, 255, 0.05);
  --border2: rgba(255, 255, 255, 0.15);
  --text: #f8fafc;
  --text2: #cbd5e1;
  --text3: #64748b;
  --blue: #3b82f6;
  --blue2: rgba(59, 130, 246, 0.15);
  --green: #10b981;
  --red: #ef4444;
  --amber: #f59e0b;
  --purple: #8b5cf6;
  --cyan: #06b6d4;
  --sidebar: 280px;
  --hdr: 56px;
  --r: 20px;
  --r2: 12px;
  --tr: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  font-family: 'Inter', system-ui, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; background: var(--bg); color: var(--text); -webkit-font-smoothing: antialiased; }
body { overflow: hidden; }
a { color: var(--blue); text-decoration: none; }
button { cursor: pointer; font-family: inherit; border: none; outline: none; background: none; }
input, select, textarea { font-family: inherit; }

h1, h2, h3, h4, h5, h6 { font-family: 'Outfit', sans-serif; }

/* BG */
.bg-gradient { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; background: #030014; }
.bg-orb { position: absolute; border-radius: 50%; filter: blur(120px); opacity: 0.5; animation: drift 25s infinite alternate ease-in-out; }
.orb-1 { width: 50vw; height: 50vw; top: -15%; left: -15%; background: radial-gradient(circle, #2563eb, transparent); }
.orb-2 { width: 40vw; height: 40vw; bottom: -10%; right: -10%; background: radial-gradient(circle, #9333ea, transparent); animation-delay: -7s; }
.orb-3 { width: 35vw; height: 35vw; top: 30%; left: 30%; background: radial-gradient(circle, #0891b2, transparent); animation-delay: -14s; }
@keyframes drift { to { transform: translate(10%, 15%) scale(1.2); } }

/* Layout */
#app { display: flex; height: 100vh; position: relative; z-index: 1; }

/* Sidebar */
#sidebar { width: var(--sidebar); background: rgba(3, 0, 20, 0.5); backdrop-filter: blur(24px); border-right: 1px solid var(--border); display: flex; flex-direction: column; flex-shrink: 0; transition: transform var(--tr); z-index: 20; box-shadow: 4px 0 24px rgba(0,0,0,0.2); }
.sidebar-brand { display: flex; align-items: center; gap: 16px; padding: 28px 24px; border-bottom: 1px solid var(--border); }
.brand-icon-box { width: 44px; height: 44px; border-radius: 12px; background: linear-gradient(135deg, #3b82f6, #8b5cf6); display: flex; align-items: center; justify-content: center; box-shadow: 0 0 24px rgba(59,130,246,0.5); flex-shrink: 0; }
.brand-icon { color: #fff; width: 22px; height: 22px; }
.brand-name { font-size: 20px; font-weight: 800; background: linear-gradient(135deg, #60a5fa, #c084fc); -webkit-background-clip: text; -webkit-text-fill-color: transparent; line-height: 1.2; }
.brand-tagline { font-size: 12px; color: var(--text3); font-weight: 500; margin-top: 2px; text-transform: uppercase; letter-spacing: 1px; }
.sidebar-nav { display: flex; flex-direction: column; gap: 8px; padding: 20px 16px; flex: 1; }
.nav-item { display: flex; align-items: center; gap: 14px; padding: 14px 18px; border-radius: var(--r2); font-size: 15px; font-weight: 500; color: var(--text2); transition: all var(--tr); width: 100%; text-align: left; }
.nav-item:hover { background: rgba(255, 255, 255, 0.05); color: var(--text); transform: translateX(4px); }
.nav-item.active { background: linear-gradient(90deg, var(--blue2), transparent); border-left: 3px solid var(--blue); color: var(--blue); font-weight: 600; }
.nav-item svg { width: 20px; height: 20px; flex-shrink: 0; }
.sidebar-footer { padding: 20px 16px; border-top: 1px solid var(--border); display: flex; flex-direction: column; gap: 12px; }
.server-status { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--text2); padding: 0 4px; }
.status-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--text3); flex-shrink: 0; transition: background 0.3s; }
.status-dot.online { background: var(--green); box-shadow: 0 0 12px rgba(16,185,129,0.6); }
.status-dot.offline { background: var(--red); box-shadow: 0 0 12px rgba(239,68,68,0.6); }
.export-actions { display: flex; gap: 10px; }
.btn-export { flex: 1; padding: 10px; border-radius: var(--r2); border: 1px solid var(--border); background: rgba(255,255,255,0.03); color: var(--text2); font-size: 13px; font-weight: 600; display: flex; align-items: center; justify-content: center; gap: 6px; transition: all var(--tr); }
.btn-export:hover { border-color: var(--blue); color: var(--blue); background: var(--blue2); transform: translateY(-2px); }
.btn-export svg { width: 14px; height: 14px; }

/* Mobile header */
#mobile-header { display: none; align-items: center; gap: 16px; padding: 0 20px; height: 64px; background: rgba(3, 0, 20, 0.8); backdrop-filter: blur(24px); border-bottom: 1px solid var(--border); flex-shrink: 0; z-index: 20; }
.mobile-brand { display: flex; align-items: center; gap: 10px; flex: 1; font-size: 18px; font-weight: 800; font-family: 'Outfit'; background: linear-gradient(135deg, #60a5fa, #c084fc); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.mobile-brand svg { width: 20px; height: 20px; color: #60a5fa; flex-shrink: 0; }
#menu-toggle { color: var(--text2); padding: 8px; display: flex; align-items: center; justify-content: center; border-radius: 8px; background: rgba(255,255,255,0.05); }
#menu-toggle svg { width: 22px; height: 22px; }
.mobile-status { width: 10px; height: 10px; border-radius: 50%; background: var(--text3); }
.mobile-status.online { background: var(--green); box-shadow: 0 0 8px rgba(16,185,129,0.5); }

/* Main */
#main-content { flex: 1; overflow-y: auto; display: flex; flex-direction: column; scroll-behavior: smooth; }

/* Pages */
.page { display: none; padding: 40px; flex-direction: column; gap: 32px; animation: fadeUp 0.4s cubic-bezier(0.16, 1, 0.3, 1); }
.page.active { display: flex; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

.page-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 20px; }
.page-title { font-size: 32px; font-weight: 800; letter-spacing: -0.5px; margin-bottom: 6px; }
.page-subtitle { font-size: 15px; color: var(--text2); font-weight: 400; }
.page-actions { display: flex; gap: 12px; flex-shrink: 0; }

/* Cards & Glassmorphism */
.glass-card { background: var(--card); backdrop-filter: blur(16px); border: 1px solid var(--border); border-radius: var(--r); box-shadow: 0 4px 24px rgba(0,0,0,0.1); }

/* KPI Grid */
.kpi-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 20px; }
.kpi-card { background: var(--card); backdrop-filter: blur(16px); border: 1px solid var(--border); border-radius: var(--r); padding: 24px; display: flex; align-items: center; gap: 18px; transition: all var(--tr); position: relative; overflow: hidden; box-shadow: 0 4px 24px rgba(0,0,0,0.1); }
.kpi-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, var(--c, var(--blue)), transparent); opacity: 0; transition: opacity var(--tr); }
.kpi-card:hover { border-color: var(--border2); transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.3); background: rgba(255,255,255,0.03); }
.kpi-card:hover::before { opacity: 1; }
.kpi-icon-box { width: 50px; height: 50px; border-radius: 14px; background: color-mix(in srgb, var(--c, var(--blue)) 15%, transparent); display: flex; align-items: center; justify-content: center; flex-shrink: 0; box-shadow: 0 4px 12px color-mix(in srgb, var(--c, var(--blue)) 20%, transparent); }
.kpi-icon-box svg { width: 24px; height: 24px; color: var(--c, var(--blue)); }
.kpi-body { flex: 1; min-width: 0; }
.kpi-value { font-size: 26px; font-weight: 800; font-family: 'Outfit'; letter-spacing: -0.5px; line-height: 1.1; }
.kpi-label { font-size: 13px; color: var(--text2); margin-top: 6px; font-weight: 500; }
.kpi-badge { font-size: 11px; font-weight: 700; padding: 3px 8px; border-radius: 20px; background: rgba(239,68,68,0.15); color: #fca5a5; margin-left: 8px; vertical-align: middle; }

/* Charts */
.charts-row { display: flex; gap: 20px; flex-wrap: wrap; }
.chart-card { background: var(--card); backdrop-filter: blur(16px); border: 1px solid var(--border); border-radius: var(--r); padding: 24px; flex: 1; min-width: 280px; transition: border-color var(--tr); box-shadow: 0 4px 24px rgba(0,0,0,0.1); }
.chart-card:hover { border-color: var(--border2); box-shadow: 0 8px 32px rgba(0,0,0,0.2); }
.chart-card.wide { flex: 1.5; min-width: 360px; }
.chart-card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.chart-card-header h3 { font-size: 16px; font-weight: 700; font-family: 'Outfit'; }
.chart-badge { font-size: 10px; font-weight: 800; letter-spacing: 0.5px; padding: 4px 10px; border-radius: 20px; background: var(--blue2); color: #93c5fd; text-transform: uppercase; }
.chart-wrapper { position: relative; height: 240px; }
.chart-wrapper.tall { height: 320px; }
.flex-1 { flex: 1; }

/* Skeleton */
.skeleton { animation: pulse 1.5s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }
.skeleton-row { animation: pulse 1.5s ease-in-out infinite; }

/* Analytics */
.analytics-controls, .churn-controls { display: flex; gap: 20px; flex-wrap: wrap; }
.control-group { display: flex; flex-direction: column; gap: 8px; }
.control-group label { font-size: 12px; font-weight: 700; color: var(--text2); text-transform: uppercase; letter-spacing: 0.5px; }
.analytics-row { display: flex; gap: 20px; align-items: flex-start; flex-wrap: wrap; }
.stats-panel { background: var(--card); backdrop-filter: blur(16px); border: 1px solid var(--border); border-radius: var(--r); padding: 24px; min-width: 240px; box-shadow: 0 4px 24px rgba(0,0,0,0.1); }
.stat-row { display: flex; justify-content: space-between; align-items: center; padding: 12px 0; border-bottom: 1px solid var(--border); font-size: 14px; }
.stat-row:last-child { border-bottom: none; }
.stat-row span { color: var(--text2); font-weight: 500; }
.stat-row strong { font-weight: 700; font-family: 'JetBrains Mono', monospace; font-size: 14px; color: #fff; }
.scatter-controls { display: flex; gap: 10px; }

/* Filters */
.filters-bar { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; background: var(--card); backdrop-filter: blur(16px); border: 1px solid var(--border); border-radius: var(--r); padding: 16px 20px; box-shadow: 0 4px 24px rgba(0,0,0,0.1); }
.filter-group { display: flex; align-items: center; }

/* Table */
.table-card { background: var(--card); backdrop-filter: blur(16px); border: 1px solid var(--border); border-radius: var(--r); overflow: hidden; box-shadow: 0 4px 24px rgba(0,0,0,0.1); }
.table-toolbar { display: flex; align-items: center; justify-content: space-between; padding: 16px 20px; border-bottom: 1px solid var(--border); flex-wrap: wrap; gap: 12px; }
.table-info { font-size: 14px; color: var(--text2); font-weight: 500; }
.table-scroll { overflow-x: auto; max-height: 500px; }
.table-scroll::-webkit-scrollbar { width: 8px; height: 8px; }
.table-scroll::-webkit-scrollbar-track { background: rgba(0,0,0,0.2); }
.table-scroll::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 4px; }
.table-scroll::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }
#data-table, #churn-table { width: 100%; border-collapse: collapse; font-size: 14px; }
#data-table th, #churn-table th { position: sticky; top: 0; background: rgba(10, 10, 20, 0.95); backdrop-filter: blur(12px); padding: 12px 16px; text-align: left; font-size: 12px; font-weight: 700; color: var(--text2); text-transform: uppercase; letter-spacing: 0.5px; border-bottom: 1px solid var(--border2); white-space: nowrap; cursor: pointer; user-select: none; z-index: 10; }
#data-table th:hover, #churn-table th:hover { color: #fff; background: rgba(255,255,255,0.05); }
#data-table td, #churn-table td { padding: 12px 16px; border-bottom: 1px solid rgba(255,255,255,0.03); white-space: nowrap; max-width: 200px; overflow: hidden; text-overflow: ellipsis; font-weight: 400; }
#data-table tr:hover td, #churn-table tr:hover td { background: rgba(255,255,255,0.05); }
.badge { display: inline-block; padding: 4px 10px; border-radius: 20px; font-size: 12px; font-weight: 700; }
.badge-red { background: rgba(239, 68, 68, 0.15); color: #fca5a5; }
.badge-green { background: rgba(16, 185, 129, 0.15); color: #6ee7b7; }
.badge-blue { background: rgba(59, 130, 246, 0.15); color: #93c5fd; }
.badge-amber { background: rgba(245, 158, 11, 0.15); color: #fcd34d; }
.badge-purple { background: rgba(139, 92, 246, 0.15); color: #c4b5fd; }
.risk-bar { display: flex; align-items: center; gap: 10px; }
.risk-fill { height: 8px; border-radius: 4px; background: var(--blue); transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1); }
.risk-fill.high { background: var(--red); box-shadow: 0 0 10px rgba(239,68,68,0.5); }
.risk-fill.med { background: var(--amber); box-shadow: 0 0 10px rgba(245,158,11,0.5); }
.risk-fill.low { background: var(--green); box-shadow: 0 0 10px rgba(16,185,129,0.5); }

/* Pagination */
.pagination-controls { display: flex; align-items: center; gap: 8px; }
.page-btn { padding: 6px 12px; border-radius: 8px; background: rgba(255,255,255,0.03); border: 1px solid var(--border); font-size: 13px; font-weight: 600; color: var(--text2); transition: all var(--tr); }
.page-btn:hover:not(:disabled) { border-color: var(--blue); color: var(--blue); background: var(--blue2); transform: translateY(-1px); }
.page-btn.active { background: linear-gradient(135deg, #3b82f6, #6d28d9); color: #fff; border-color: transparent; box-shadow: 0 4px 12px rgba(59,130,246,0.3); }
.page-btn:disabled { opacity: 0.3; cursor: not-allowed; }
.delete-btn { padding: 6px 12px; border-radius: 8px; background: rgba(239, 68, 68, 0.1); color: #fca5a5; font-size: 12px; font-weight: 600; border: 1px solid rgba(239, 68, 68, 0.2); transition: all var(--tr); }
.delete-btn:hover { background: rgba(239, 68, 68, 0.25); border-color: rgba(239, 68, 68, 0.5); transform: translateY(-1px); }

/* Form inputs */
input[type=text], input[type=number], input[type=search], select { background: rgba(0,0,0,0.2); border: 1px solid var(--border2); border-radius: var(--r2); padding: 10px 14px; font-size: 14px; color: var(--text); outline: none; transition: all var(--tr); box-shadow: inset 0 2px 4px rgba(0,0,0,0.1); }
input[type=text]:focus, input[type=number]:focus, input[type=search]:focus, select:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2), inset 0 2px 4px rgba(0,0,0,0.1); background: rgba(0,0,0,0.4); }
select option { background: #0f0a29; color: #fff; }
input::placeholder { color: var(--text3); }

/* Buttons */
.btn-primary { display: inline-flex; align-items: center; gap: 8px; background: linear-gradient(135deg, #3b82f6, #8b5cf6); color: #fff; padding: 12px 24px; border-radius: var(--r2); font-size: 14px; font-weight: 700; transition: all var(--tr); box-shadow: 0 4px 16px rgba(59, 130, 246, 0.4); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(59, 130, 246, 0.5); }
.btn-primary svg { width: 18px; height: 18px; }
.btn-ghost { display: inline-flex; align-items: center; gap: 8px; padding: 10px 16px; border-radius: var(--r2); border: 1px solid var(--border2); background: rgba(255,255,255,0.03); color: var(--text); font-size: 14px; font-weight: 600; transition: all var(--tr); }
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); background: var(--blue2); transform: translateY(-1px); }
.btn-ghost svg { width: 16px; height: 16px; }
.btn-refresh { display: flex; align-items: center; justify-content: center; width: 44px; height: 44px; border-radius: var(--r2); background: var(--card); border: 1px solid var(--border); color: var(--text); transition: all var(--tr); box-shadow: 0 4px 12px rgba(0,0,0,0.1); }
.btn-refresh:hover { border-color: var(--blue); color: var(--blue); background: var(--blue2); transform: rotate(15deg); }
.btn-refresh svg { width: 20px; height: 20px; }

/* Modal */
.modal-overlay { position: fixed; inset: 0; background: rgba(0, 0, 0, 0.8); backdrop-filter: blur(12px); z-index: 100; display: flex; align-items: center; justify-content: center; padding: 20px; animation: fadeIn 0.3s ease; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.modal-overlay.hidden { display: none; }
.modal-sheet { background: rgba(15, 10, 41, 0.9); backdrop-filter: blur(32px); border: 1px solid var(--border2); border-radius: 24px; padding: 32px; width: 100%; max-width: 800px; max-height: 90vh; overflow-y: auto; box-shadow: 0 24px 64px rgba(0,0,0,0.5); animation: scaleIn 0.4s cubic-bezier(0.16, 1, 0.3, 1); }
@keyframes scaleIn { from { transform: scale(0.9) translateY(20px); opacity: 0; } to { transform: scale(1) translateY(0); opacity: 1; } }
.modal-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 28px; }
.modal-header h2 { font-size: 24px; font-weight: 800; display: flex; align-items: center; gap: 12px; }
.modal-header svg { width: 24px; height: 24px; color: var(--blue); }
.modal-close { width: 36px; height: 36px; display: flex; align-items: center; justify-content: center; border-radius: 10px; background: rgba(255,255,255,0.05); color: var(--text2); transition: all var(--tr); }
.modal-close:hover { background: rgba(239, 68, 68, 0.15); color: var(--red); transform: rotate(90deg); }
.modal-close svg { width: 18px; height: 18px; }
.add-form {}
.form-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 20px; margin-bottom: 28px; }
.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label { font-size: 12px; font-weight: 700; color: var(--text2); text-transform: uppercase; letter-spacing: 0.5px; }
.modal-actions { display: flex; gap: 12px; justify-content: flex-end; padding-top: 24px; border-top: 1px solid var(--border); }

/* ML Score Card inside Modal */
.ml-score-card { grid-column: 1 / -1; background: linear-gradient(135deg, rgba(59,130,246,0.1), rgba(139,92,246,0.1)); border: 1px solid rgba(139,92,246,0.3); border-radius: 16px; padding: 20px; display: flex; align-items: center; justify-content: space-between; margin-bottom: 24px; }
.ml-score-text { display: flex; flex-direction: column; gap: 4px; }
.ml-score-text strong { font-size: 18px; font-family: 'Outfit'; color: #fff; }
.ml-score-text span { font-size: 13px; color: var(--text2); }
.ml-score-value { font-size: 32px; font-weight: 800; font-family: 'Outfit'; color: var(--blue); }

/* Toast */
#toast-container { position: fixed; bottom: 32px; right: 32px; display: flex; flex-direction: column; gap: 12px; z-index: 200; }
.toast { background: rgba(15, 10, 41, 0.95); backdrop-filter: blur(16px); border: 1px solid var(--border2); border-radius: var(--r2); padding: 16px 20px; font-size: 14px; font-weight: 600; display: flex; align-items: center; gap: 12px; animation: slideIn 0.4s cubic-bezier(0.16, 1, 0.3, 1); box-shadow: 0 12px 32px rgba(0,0,0,0.3); max-width: 360px; }
.toast.success { border-left: 4px solid var(--green); color: #fff; }
.toast.error { border-left: 4px solid var(--red); color: #fff; }
.toast.info { border-left: 4px solid var(--blue); color: #fff; }
@keyframes slideIn { from { transform: translateX(120%) scale(0.9); opacity: 0; } to { transform: translateX(0) scale(1); opacity: 1; } }

/* Responsive */
@media(max-width: 768px) {
  #sidebar { position: fixed; top: 0; left: 0; height: 100%; transform: translateX(-100%); }
  #sidebar.open { transform: translateX(0); }
  #mobile-header { display: flex; }
  .page { padding: 24px 16px; gap: 24px; }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .charts-row { flex-direction: column; }
  .analytics-row { flex-direction: column; }
  .chart-card.wide, .chart-card { min-width: 0; flex: none; width: 100%; }
}