/* === RESET & BASE === */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg-primary:#080E1A;
  --bg-secondary:#0D1528;
  --bg-card:#111B33;
  --bg-card-hover:#162241;
  --bg-elevated:#1A2A4A;
  --border:#1E3355;
  --border-light:#2A4070;
  --text-primary:#E8EDF5;
  --text-secondary:#8899BB;
  --text-muted:#556688;
  --accent:#00D4FF;
  --accent-bg:rgba(0,212,255,0.08);
  --accent-border:rgba(0,212,255,0.2);
  --green:#10B981;
  --green-bg:rgba(16,185,129,0.1);
  --green-border:rgba(16,185,129,0.25);
  --amber:#F59E0B;
  --amber-bg:rgba(245,158,11,0.1);
  --amber-border:rgba(245,158,11,0.25);
  --red:#EF4444;
  --red-bg:rgba(239,68,68,0.1);
  --red-border:rgba(239,68,68,0.25);
  --violet:#8B5CF6;
  --violet-bg:rgba(139,92,246,0.1);
  --violet-border:rgba(139,92,246,0.25);
  --radius:12px;
  --radius-sm:8px;
  --radius-xs:6px;
  --shadow-card:0 1px 3px rgba(0,0,0,0.3),0 1px 2px rgba(0,0,0,0.2);
  --shadow-elevated:0 4px 12px rgba(0,0,0,0.4);
  --transition:all 0.2s cubic-bezier(0.4,0,0.2,1)
}
html,body{height:100%}
body{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,sans-serif;
  background:var(--bg-primary);
  color:var(--text-primary);
  font-size:14px;
  line-height:1.5;
  -webkit-font-smoothing:antialiased
}
::selection{background:var(--accent);color:var(--bg-primary)}
::-webkit-scrollbar{width:6px;height:6px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--border);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:var(--border-light)}

/* === LAYOUT === */
#app{display:flex;height:100vh;overflow:hidden}

.sidebar{
  width:240px;
  background:var(--bg-secondary);
  border-right:1px solid var(--border);
  display:flex;
  flex-direction:column;
  flex-shrink:0;
  z-index:10
}
.sidebar-header{
  padding:24px 20px 20px;
  border-bottom:1px solid var(--border);
  display:flex;
  align-items:center;
  gap:12px
}
.sidebar-logo{
  width:36px;height:36px;
  background:var(--accent-bg);
  border:1px solid var(--accent-border);
  border-radius:var(--radius-sm);
  display:flex;align-items:center;justify-content:center;
  font-size:18px;color:var(--accent);font-weight:700
}
.sidebar-brand{
  font-size:15px;font-weight:700;letter-spacing:-0.3px;
  background:linear-gradient(135deg,var(--text-primary),var(--accent));
  -webkit-background-clip:text;-webkit-text-fill-color:transparent
}
.sidebar-brand-sub{font-size:10px;color:var(--text-muted);font-weight:500;text-transform:uppercase;letter-spacing:1px;margin-top:1px}
.sidebar-nav{flex:1;padding:12px 10px;display:flex;flex-direction:column;gap:2px}
.nav-section{font-size:10px;color:var(--text-muted);font-weight:600;text-transform:uppercase;letter-spacing:1.2px;padding:16px 12px 6px}
.nav-item{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:var(--radius-xs);
  color:var(--text-secondary);text-decoration:none;
  font-size:13px;font-weight:500;
  transition:var(--transition);cursor:pointer;border:none;background:none;width:100%;text-align:left
}
.nav-item:hover{background:var(--bg-card);color:var(--text-primary)}
.nav-item.active{background:var(--accent-bg);color:var(--accent)}
.nav-item .nav-icon{width:18px;height:18px;flex-shrink:0;opacity:0.7}
.nav-item.active .nav-icon{opacity:1}
.nav-item .nav-badge{
  margin-left:auto;
  background:var(--bg-elevated);
  color:var(--text-secondary);
  font-size:10px;font-weight:600;
  padding:1px 7px;border-radius:999px;
  font-family:'JetBrains Mono',monospace
}
.sidebar-footer{
  padding:16px 20px;
  border-top:1px solid var(--border);
  display:flex;align-items:center;justify-content:space-between
}
.sidebar-footer .user-info{display:flex;align-items:center;gap:8px}
.sidebar-footer .avatar{
  width:28px;height:28px;
  background:var(--accent-bg);border:1px solid var(--accent-border);
  border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:11px;color:var(--accent);font-weight:700
}
.sidebar-footer .user-name{font-size:12px;font-weight:500;color:var(--text-primary)}
.sidebar-footer .logout-btn{
  background:none;border:none;
  color:var(--text-muted);cursor:pointer;
  font-size:16px;padding:4px;border-radius:4px;transition:var(--transition)
}
.sidebar-footer .logout-btn:hover{color:var(--red);background:var(--red-bg)}

.main-content{flex:1;display:flex;flex-direction:column;overflow:hidden;background:var(--bg-primary)}

.topbar{
  display:flex;justify-content:space-between;align-items:center;
  padding:16px 32px;border-bottom:1px solid var(--border);
  background:var(--bg-secondary);flex-shrink:0;min-height:60px
}
.topbar-left{display:flex;align-items:center;gap:16px}
.topbar-title{font-size:18px;font-weight:600;letter-spacing:-0.3px}
.topbar-breadcrumb{font-size:12px;color:var(--text-muted)}
.topbar-breadcrumb span{color:var(--text-secondary)}
.topbar-right{display:flex;align-items:center;gap:10px}

#view-container{flex:1;overflow-y:auto;padding:28px 32px}

/* === LOGIN === */
.login-page{
  display:flex;width:100%;height:100vh;
  background:var(--bg-primary);
  position:relative;overflow:hidden
}
.login-bg{
  position:absolute;inset:0;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(0,212,255,0.05) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 50%, rgba(139,92,246,0.05) 0%, transparent 60%);
  pointer-events:none
}
.login-grid{
  position:absolute;inset:0;
  background-image:linear-gradient(var(--border) 1px,transparent 1px),linear-gradient(90deg,var(--border) 1px,transparent 1px);
  background-size:40px 40px;opacity:0.3;pointer-events:none
}
.login-container{
  position:relative;z-index:1;
  display:flex;width:100%;height:100%;
  align-items:center;justify-content:center
}
.login-box{
  width:400px;max-width:90vw;
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:40px;
  box-shadow:var(--shadow-elevated)
}
.login-box .logo-area{text-align:center;margin-bottom:36px}
.login-box .logo-icon{
  width:56px;height:56px;margin:0 auto 16px;
  background:var(--accent-bg);border:2px solid var(--accent-border);
  border-radius:16px;display:flex;align-items:center;justify-content:center;
  font-size:28px;font-weight:800;color:var(--accent)
}
.login-box h1{font-size:22px;font-weight:700;letter-spacing:-0.5px;margin-bottom:4px}
.login-box p{font-size:13px;color:var(--text-secondary)}
.login-error{
  background:var(--red-bg);border:1px solid var(--red-border);
  border-radius:var(--radius-xs);padding:10px 14px;
  font-size:13px;color:var(--red);margin-bottom:16px;display:none
}
.form-group{margin-bottom:18px}
.form-group label{
  display:block;font-size:12px;font-weight:600;
  color:var(--text-secondary);margin-bottom:6px;
  text-transform:uppercase;letter-spacing:0.5px
}
.form-group input{
  width:100%;background:var(--bg-primary);
  border:1px solid var(--border);border-radius:var(--radius-xs);
  padding:11px 14px;color:var(--text-primary);
  font-family:'Inter',sans-serif;font-size:14px;
  outline:none;transition:var(--transition)
}
.form-group input:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-bg)}
.form-group input::placeholder{color:var(--text-muted)}
.login-btn{
  width:100%;padding:12px;border:none;border-radius:var(--radius-xs);
  background:var(--accent);color:var(--bg-primary);
  font-family:'Inter',sans-serif;font-size:14px;font-weight:700;
  cursor:pointer;transition:var(--transition);margin-top:4px
}
.login-btn:hover{opacity:0.9;box-shadow:0 0 20px rgba(0,212,255,0.3)}
.login-btn:disabled{opacity:0.5;cursor:not-allowed}
.login-footer{text-align:center;margin-top:24px;font-size:11px;color:var(--text-muted);font-family:'JetBrains Mono',monospace}

/* === METRIC CARDS === */
.metrics{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px;margin-bottom:28px}
.metric-card{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius);padding:20px 22px;
  transition:var(--transition);position:relative;overflow:hidden
}
.metric-card:hover{border-color:var(--border-light);transform:translateY(-1px);box-shadow:var(--shadow-card)}
.metric-card .metric-top{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:8px}
.metric-card .metric-icon{
  width:32px;height:32px;border-radius:var(--radius-xs);
  display:flex;align-items:center;justify-content:center;font-size:16px
}
.metric-card .metric-label{font-size:12px;color:var(--text-muted);font-weight:500;letter-spacing:0.3px}
.metric-card .metric-value{font-size:30px;font-weight:700;letter-spacing:-1px;line-height:1.2}
.metric-card .metric-sub{font-size:12px;color:var(--text-secondary);margin-top:4px}
.metric-card .metric-change{font-size:12px;font-weight:600;padding:2px 8px;border-radius:999px;font-family:'JetBrains Mono',monospace}
.metric-change.up{background:var(--green-bg);color:var(--green);border:1px solid var(--green-border)}
.metric-change.down{background:var(--red-bg);color:var(--red);border:1px solid var(--red-border)}

/* === CHARTS === */
.charts-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:28px}
.chart-card{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius);padding:22px;transition:var(--transition)
}
.chart-card:hover{border-color:var(--border-light)}
.chart-card .chart-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}
.chart-card .chart-title{font-size:13px;font-weight:600;color:var(--text-secondary);letter-spacing:0.3px}
.chart-card .chart-count{font-size:11px;font-family:'JetBrains Mono',monospace;color:var(--text-muted)}
.chart-card canvas{max-height:280px;max-width:100%}

/* === TABLE === */
.table-wrap{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius);overflow:hidden;transition:var(--transition)
}
.table-wrap:hover{border-color:var(--border-light)}
.table-toolbar{
  display:flex;justify-content:space-between;align-items:center;
  padding:16px 20px;border-bottom:1px solid var(--border);gap:12px;flex-wrap:wrap
}
.table-toolbar-left{display:flex;align-items:center;gap:12px}
.table-toolbar-left h2{font-size:15px;font-weight:600}
.table-toolbar-right{display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.search-wrap{position:relative}
.search-wrap .search-icon{
  position:absolute;left:11px;top:50%;transform:translateY(-50%);
  color:var(--text-muted);font-size:13px;pointer-events:none
}
.search-input{
  background:var(--bg-primary);
  border:1px solid var(--border);border-radius:var(--radius-xs);
  padding:8px 12px 8px 32px;color:var(--text-primary);
  font-family:'Inter',sans-serif;font-size:13px;width:240px;
  outline:none;transition:var(--transition)
}
.search-input:focus{border-color:var(--accent)}
.search-input::placeholder{color:var(--text-muted)}
.table-scroll{overflow-x:auto}
table{width:100%;border-collapse:collapse}
thead{background:var(--bg-secondary)}
th{
  text-align:left;padding:10px 16px;
  font-size:11px;font-weight:600;color:var(--text-muted);
  text-transform:uppercase;letter-spacing:0.6px;
  border-bottom:1px solid var(--border);white-space:nowrap;user-select:none
}
td{padding:12px 16px;border-bottom:1px solid var(--border);font-size:13px;white-space:nowrap}
tr:last-child td{border-bottom:none}
tbody tr{cursor:pointer;transition:var(--transition)}
tbody tr:hover td{background:var(--bg-card-hover)}
tbody tr:active td{background:var(--bg-elevated)}

/* === BADGES === */
.badge{
  display:inline-flex;align-items:center;
  padding:3px 10px;border-radius:999px;
  font-size:11px;font-weight:600;
  font-family:'JetBrains Mono',monospace;letter-spacing:0.2px;
  border:1px solid transparent
}
.badge-active{background:var(--green-bg);color:var(--green);border-color:var(--green-border)}
.badge-inactive{background:var(--amber-bg);color:var(--amber);border-color:var(--amber-border)}
.badge-vip{background:var(--violet-bg);color:var(--violet);border-color:var(--violet-border)}
.badge-churned{background:var(--red-bg);color:var(--red);border-color:var(--red-border)}
.badge-prospect{background:var(--accent-bg);color:var(--accent);border-color:var(--accent-border)}
.badge-lead{background:var(--violet-bg);color:var(--violet);border-color:var(--violet-border)}
.badge-qualified{background:var(--green-bg);color:var(--green);border-color:var(--green-border)}
.badge-negotiation{background:var(--amber-bg);color:var(--amber);border-color:var(--amber-border)}
.badge-won{background:var(--green-bg);color:var(--green);border-color:var(--green-border)}
.badge-lost{background:var(--red-bg);color:var(--red);border-color:var(--red-border)}

/* === BUTTONS === */
.btn{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 18px;border-radius:var(--radius-xs);
  font-family:'Inter',sans-serif;font-size:13px;font-weight:600;
  cursor:pointer;border:none;text-decoration:none;
  transition:var(--transition);white-space:nowrap
}
.btn-sm{padding:6px 12px;font-size:12px}
.btn-xs{padding:4px 8px;font-size:11px}
.btn-primary{background:var(--accent);color:var(--bg-primary)}
.btn-primary:hover{opacity:0.9;box-shadow:0 0 16px rgba(0,212,255,0.25)}
.btn-secondary{background:var(--bg-elevated);color:var(--text-primary);border:1px solid var(--border)}
.btn-secondary:hover{background:var(--bg-card-hover);border-color:var(--border-light)}
.btn-ghost{background:transparent;color:var(--text-secondary);padding:6px 10px}
.btn-ghost:hover{color:var(--text-primary);background:var(--bg-card)}
.btn-danger{background:var(--red);color:white}
.btn-danger:hover{opacity:0.9}

/* === DETAIL === */
.detail-header{
  display:flex;justify-content:space-between;align-items:flex-start;
  margin-bottom:24px;flex-wrap:wrap;gap:12px
}
.detail-header .detail-name{font-size:26px;font-weight:700;letter-spacing:-0.5px}
.detail-header .detail-email{color:var(--text-secondary);margin-top:4px;font-size:14px}
.detail-header .detail-actions{display:flex;gap:8px}
.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:24px}
.detail-card{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius);padding:22px;transition:var(--transition)
}
.detail-card:hover{border-color:var(--border-light)}
.detail-card h3{
  font-size:11px;color:var(--text-muted);font-weight:600;
  text-transform:uppercase;letter-spacing:0.8px;
  margin-bottom:14px;padding-bottom:10px;
  border-bottom:1px solid var(--border)
}
.detail-field{
  display:flex;justify-content:space-between;padding:7px 0;font-size:13px;
  border-bottom:1px solid transparent
}
.detail-field .field-label{color:var(--text-muted)}
.detail-field .field-value{color:var(--text-primary);font-weight:500;text-align:right;max-width:55%}
.detail-field:last-child{border-bottom:none}
.detail-full{grid-column:1/-1}
.detail-tabs{display:flex;gap:2px;margin-bottom:20px;background:var(--bg-secondary);border-radius:var(--radius-xs);padding:3px;width:fit-content}
.detail-tab{
  padding:8px 18px;border-radius:var(--radius-xs);border:none;background:none;
  font-family:'Inter',sans-serif;font-size:13px;font-weight:500;
  color:var(--text-secondary);cursor:pointer;transition:var(--transition)
}
.detail-tab.active{background:var(--bg-elevated);color:var(--text-primary)}

/* === MODAL === */
.modal-overlay{
  position:fixed;inset:0;background:rgba(0,0,0,0.7);
  display:flex;align-items:center;justify-content:center;
  z-index:100;backdrop-filter:blur(4px);animation:fadeIn 0.15s ease-out
}
.modal{
  background:var(--bg-card);border:1px solid var(--border);
  border-radius:var(--radius);padding:32px;
  width:92%;max-width:600px;max-height:85vh;
  overflow-y:auto;box-shadow:var(--shadow-elevated)
}
.modal h2{font-size:19px;font-weight:700;margin-bottom:24px;letter-spacing:-0.3px}
.modal-close{float:right;background:none;border:none;color:var(--text-muted);font-size:20px;cursor:pointer;padding:4px}
.modal-close:hover{color:var(--text-primary)}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-group{margin-bottom:16px}
.form-group label{
  display:block;font-size:12px;font-weight:600;
  color:var(--text-secondary);margin-bottom:6px
}
.form-group input,.form-group select,.form-group textarea{
  width:100%;background:var(--bg-primary);
  border:1px solid var(--border);border-radius:var(--radius-xs);
  padding:10px 13px;color:var(--text-primary);
  font-family:'Inter',sans-serif;font-size:13px;
  outline:none;transition:var(--transition)
}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-bg)}
.form-group textarea{resize:vertical;min-height:70px}
.form-group select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%23556688' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:32px}
.form-group .checkbox-label{display:flex;align-items:center;gap:8px;cursor:pointer;color:var(--text-secondary);font-size:13px}
.form-group input[type=checkbox]{width:auto}
.form-actions{display:flex;gap:8px;justify-content:flex-end;margin-top:24px;padding-top:16px;border-top:1px solid var(--border)}

/* === LOADING === */
.loading{
  display:flex;align-items:center;justify-content:center;
  height:200px;color:var(--text-muted);font-size:13px;gap:10px
}
.spinner{width:18px;height:18px;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin 0.6s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes fadeIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}
@keyframes slideUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}
.fade-in{animation:fadeIn 0.25s ease-out}
.slide-up{animation:slideUp 0.3s ease-out}

/* === EMPTY STATE === */
.empty-state{text-align:center;padding:40px 20px;color:var(--text-muted)}
.empty-state .empty-icon{font-size:40px;margin-bottom:12px;opacity:0.5}
.empty-state .empty-text{font-size:14px}

/* === RESPONSIVE === */
@media(max-width:900px){
  .sidebar{width:200px}
  .charts-row{grid-template-columns:1fr}
  .detail-grid{grid-template-columns:1fr}
  .metrics{grid-template-columns:1fr 1fr}
  #view-container{padding:20px 16px}
  .topbar{padding:12px 16px;flex-direction:column;align-items:flex-start;gap:8px}
}
@media(max-width:640px){
  .sidebar{width:56px}
  .sidebar .sidebar-brand,.sidebar .sidebar-brand-sub,.sidebar .nav-section,.sidebar .nav-item span,.sidebar .nav-item .nav-badge,.sidebar .user-name{display:none}
  .sidebar .sidebar-header{padding:16px 10px;justify-content:center}
  .sidebar .nav-item{justify-content:center;padding:10px}
  .sidebar-footer{padding:12px 10px;justify-content:center}
  .sidebar-footer .logout-btn{display:none}
  .metrics{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .topbar-title{font-size:15px}
}