:root {
  --navy:      #0A1628;
  --navy-mid:  #0F2040;
  --navy-light:#1A3360;
  --accent:    #1E88E5;
  --accent-h:  #1565C0;
  --accent-lt: #E3F2FD;
  --gold:      #F9A825;
  --success:   #2E7D32;
  --danger:    #C62828;
  --warning:   #E65100;
  --gray-100:  #F5F7FA;
  --gray-200:  #E8ECF0;
  --gray-400:  #9BA7B4;
  --gray-600:  #5A6472;
  --gray-900:  #1A1F2E;
  --white:     #FFFFFF;
  --card-bg:   #FFFFFF;
  --body-bg:   #F5F7FA;
  --text:      #1A1F2E;
  --text-muted:#5A6472;
  --border:    #E0E6ED;
  --radius:    12px;
  --radius-sm: 8px;
  --shadow:    0 2px 12px rgba(10,22,40,.08);
  --shadow-md: 0 4px 24px rgba(10,22,40,.12);
  --font:      'Inter', system-ui, -apple-system, sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{font-size:16px;-webkit-text-size-adjust:100%}
body{font-family:var(--font);background:var(--body-bg);color:var(--text);line-height:1.6;min-height:100vh}
a{color:var(--accent);text-decoration:none}
a:hover{color:var(--accent-h)}
img{max-width:100%;height:auto}
input,select,textarea,button{font-family:inherit;font-size:inherit}
/* Layout */
.app-shell{display:flex;min-height:100vh}
.sidebar{width:260px;background:var(--navy);color:#fff;display:flex;flex-direction:column;flex-shrink:0;position:fixed;top:0;left:0;height:100vh;z-index:100;transition:transform .25s}
.sidebar-logo{padding:24px 20px 16px;border-bottom:1px solid rgba(255,255,255,.08)}
.sidebar-logo .brand{font-size:1.3rem;font-weight:800;color:#fff;letter-spacing:-.02em}
.sidebar-logo .tagline{font-size:.65rem;color:rgba(255,255,255,.45);letter-spacing:.08em;text-transform:uppercase;margin-top:2px}
.sidebar-nav{flex:1;overflow-y:auto;padding:16px 0}
.nav-section{padding:8px 16px 4px;font-size:.65rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;color:rgba(255,255,255,.35)}
.nav-item{display:flex;align-items:center;gap:10px;padding:10px 20px;color:rgba(255,255,255,.72);transition:all .15s;border-left:3px solid transparent;font-size:.875rem}
.nav-item:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-item.active{background:rgba(30,136,229,.18);color:#fff;border-left-color:var(--accent)}
.nav-item svg,.nav-item .icon{width:18px;height:18px;flex-shrink:0;opacity:.8}
.main-content{flex:1;margin-left:260px;display:flex;flex-direction:column;min-height:100vh}
.topbar{background:var(--white);border-bottom:1px solid var(--border);padding:0 24px;height:64px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:50}
.topbar-title{font-weight:700;font-size:1.05rem;color:var(--navy)}
.topbar-actions{display:flex;align-items:center;gap:12px}
.page-body{padding:24px;flex:1}
/* Cards */
.card{background:var(--card-bg);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px}
.card-sm{padding:16px}
.card-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.card-title{font-weight:700;font-size:1rem;color:var(--navy)}
/* Stat tiles */
.stat-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:16px}
.stat-tile{background:var(--card-bg);border-radius:var(--radius);padding:20px;box-shadow:var(--shadow);border-top:3px solid var(--accent)}
.stat-tile .label{font-size:.75rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--text-muted)}
.stat-tile .value{font-size:2rem;font-weight:800;color:var(--navy);margin-top:4px;font-variant-numeric:tabular-nums}
.stat-tile .sub{font-size:.8rem;color:var(--text-muted);margin-top:4px}
/* Status badges */
.badge{display:inline-flex;align-items:center;padding:3px 10px;border-radius:50px;font-size:.72rem;font-weight:600;text-transform:uppercase;letter-spacing:.04em}
.badge-success{background:#E8F5E9;color:#2E7D32}
.badge-danger {background:#FFEBEE;color:#C62828}
.badge-warning{background:#FFF3E0;color:#E65100}
.badge-info   {background:#E3F2FD;color:#1565C0}
.badge-gray   {background:#ECEFF1;color:#546E7A}
.badge-gold   {background:#FFF8E1;color:#F57F17}
/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 20px;border-radius:var(--radius-sm);font-weight:600;font-size:.875rem;cursor:pointer;transition:all .15s;border:none;text-decoration:none;white-space:nowrap}
.btn-primary{background:var(--accent);color:#fff}.btn-primary:hover{background:var(--accent-h);color:#fff}
.btn-navy   {background:var(--navy);color:#fff}.btn-navy:hover{background:var(--navy-mid);color:#fff}
.btn-outline{background:transparent;color:var(--accent);border:1.5px solid var(--accent)}.btn-outline:hover{background:var(--accent-lt)}
.btn-danger {background:#FFEBEE;color:var(--danger)}.btn-danger:hover{background:var(--danger);color:#fff}
.btn-sm{padding:6px 14px;font-size:.8rem}
.btn-lg{padding:14px 28px;font-size:1rem}
.btn-block{width:100%}
.btn:disabled{opacity:.5;cursor:not-allowed}
/* Forms */
.form-group{margin-bottom:18px}
.form-label{display:block;font-size:.85rem;font-weight:600;color:var(--gray-600);margin-bottom:6px}
.form-control{width:100%;padding:11px 14px;border:1.5px solid var(--border);border-radius:var(--radius-sm);background:#fff;color:var(--text);transition:border-color .15s;font-size:.9rem}
.form-control:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(30,136,229,.1)}
.form-control.error{border-color:var(--danger)}
.form-hint{font-size:.78rem;color:var(--text-muted);margin-top:4px}
/* Tables */
.table-wrap{overflow-x:auto}
.table{width:100%;border-collapse:collapse;font-size:.875rem}
.table th{text-align:left;padding:10px 14px;font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:var(--text-muted);background:var(--gray-100);border-bottom:1px solid var(--border)}
.table td{padding:12px 14px;border-bottom:1px solid var(--gray-200);vertical-align:middle}
.table tr:last-child td{border-bottom:none}
.table tr:hover td{background:var(--gray-100)}
/* Alerts */
.alert{padding:14px 16px;border-radius:var(--radius-sm);margin-bottom:16px;display:flex;align-items:flex-start;gap:10px;font-size:.875rem}
.alert-error  {background:#FFEBEE;color:var(--danger);border-left:3px solid var(--danger)}
.alert-success{background:#E8F5E9;color:var(--success);border-left:3px solid var(--success)}
.alert-warning{background:#FFF8E1;color:var(--warning);border-left:3px solid var(--warning)}
.alert-info   {background:#E3F2FD;color:var(--accent-h);border-left:3px solid var(--accent)}
/* Transaction status pill */
.tx-status{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:50px;font-size:.75rem;font-weight:700}
.tx-CONFIRMED ,.tx-SETTLED,.tx-RECONCILED{background:#E8F5E9;color:#2E7D32}
.tx-FAILED,.tx-REVERSED                  {background:#FFEBEE;color:#C62828}
.tx-UNKNOWN,.tx-EXCEPTION                {background:#FFF3E0;color:#E65100}
.tx-PROCESSING,.tx-EXECUTING,.tx-ROUTED,.tx-RISK_CHECKED,.tx-AUTHORIZED,.tx-AUTHENTICATED{background:#E3F2FD;color:#1565C0}
.tx-INITIATED,.tx-CANCELLED,.tx-EXPIRED  {background:#ECEFF1;color:#546E7A}
/* Steps */
.steps{display:flex;flex-direction:column;gap:0}
.step{display:flex;gap:16px;padding-bottom:20px;position:relative}
.step:not(:last-child)::before{content:'';position:absolute;left:17px;top:36px;width:2px;height:calc(100%-20px);background:var(--border)}
.step-dot{width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:.8rem;font-weight:700;flex-shrink:0;z-index:1}
.step-dot.done  {background:#E8F5E9;color:#2E7D32}
.step-dot.active{background:var(--accent);color:#fff}
.step-dot.pending{background:var(--gray-200);color:var(--text-muted)}
.step-dot.fail  {background:#FFEBEE;color:var(--danger)}
.step-content{flex:1}
.step-label{font-weight:700;font-size:.875rem;color:var(--navy)}
.step-time {font-size:.75rem;color:var(--text-muted)}
/* Quick actions */
.quick-actions{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.quick-action{display:flex;flex-direction:column;align-items:center;gap:8px;padding:16px 8px;background:var(--white);border-radius:var(--radius);box-shadow:var(--shadow);cursor:pointer;transition:all .15s;text-align:center;border:1.5px solid transparent;text-decoration:none;color:var(--text)}
.quick-action:hover{border-color:var(--accent);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.quick-action .qa-icon{width:44px;height:44px;background:var(--accent-lt);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--accent);font-size:1.2rem}
.quick-action .qa-label{font-size:.78rem;font-weight:600;color:var(--navy)}
/* Moyo Safety banner */
.moyo-safe{background:linear-gradient(135deg,var(--navy-light),var(--navy));color:#fff;padding:16px 20px;border-radius:var(--radius);display:flex;align-items:center;gap:12px}
.moyo-safe .shield{font-size:1.5rem}
.moyo-safe .title{font-weight:700;font-size:.9rem}
.moyo-safe .sub  {font-size:.78rem;opacity:.75;margin-top:2px}
/* Pagination */
.pagination{display:flex;gap:6px;align-items:center;flex-wrap:wrap}
.page-btn{padding:6px 12px;border-radius:6px;background:var(--white);border:1.5px solid var(--border);color:var(--text);font-size:.82rem;cursor:pointer;text-decoration:none;transition:all .12s}
.page-btn:hover,.page-btn.active{background:var(--accent);border-color:var(--accent);color:#fff}
/* Mobile nav */
.mobile-nav{display:none;position:fixed;bottom:0;left:0;right:0;background:var(--white);border-top:1px solid var(--border);z-index:200;padding:8px 0 12px}
.mobile-nav-items{display:flex;justify-content:space-around}
.mobile-nav-item{display:flex;flex-direction:column;align-items:center;gap:4px;padding:6px 12px;color:var(--text-muted);font-size:.68rem;font-weight:600;text-decoration:none;transition:color .12s}
.mobile-nav-item.active{color:var(--accent)}
.mobile-nav-item svg{width:22px;height:22px}
/* Responsive */
@media(max-width:900px){
  .sidebar{transform:translateX(-100%)}
  .sidebar.open{transform:none}
  .main-content{margin-left:0}
  .mobile-nav{display:block}
  .page-body{padding:16px 14px 80px}
  .quick-actions{grid-template-columns:repeat(3,1fr)}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:480px){
  .quick-actions{grid-template-columns:repeat(3,1fr)}
  .stat-grid{grid-template-columns:1fr 1fr}
}
/* Sandbox banner */
.sandbox-banner{background:#FFF3E0;border-bottom:2px solid var(--gold);padding:8px 24px;text-align:center;font-size:.8rem;font-weight:700;color:var(--warning);letter-spacing:.04em}
/* Unknown transaction warning */
.tx-unknown-warn{background:#FFF3E0;border:2px solid var(--gold);border-radius:var(--radius);padding:20px;margin-bottom:20px}
.tx-unknown-warn h3{color:var(--warning);font-weight:700}
/* Skeleton loaders */
.skeleton{background:linear-gradient(90deg,#e8ecf0 25%,#f5f7fa 50%,#e8ecf0 75%);background-size:400% 100%;animation:shimmer 1.5s infinite;border-radius:6px}
@keyframes shimmer{0%{background-position:100% 50%}100%{background-position:0 50%}}
/* USSD simulator */
.ussd-phone{width:280px;background:#1a1a2e;border-radius:30px;padding:20px;box-shadow:0 8px 32px rgba(0,0,0,.4);margin:0 auto}
.ussd-screen{background:#e8f5e2;border-radius:16px;padding:16px;min-height:200px;font-family:'Courier New',monospace;font-size:.85rem;line-height:1.7;color:#1a1a2e}
/* Offline */
.offline-page{text-align:center;padding:60px 24px;max-width:440px;margin:0 auto}