/* ══════════════════════════════════════════
   Secure QRIS Admin Dashboard — Design v3
   Professional dashboard, dark mode, animations
   ══════════════════════════════════════════ */

/* ─── Reset & Variables ─── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --primary:#6366f1;
  --primary-light:#818cf8;
  --primary-dark:#4f46e5;
  --primary-bg:#eef2ff;
  --success:#10b981;
  --success-bg:#d1fae5;
  --success-text:#065f46;
  --danger:#ef4444;
  --danger-bg:#fee2e2;
  --danger-text:#991b1b;
  --warning:#f59e0b;
  --warning-bg:#fef3c7;
  --warning-text:#92400e;
  --info:#3b82f6;
  --info-bg:#dbeafe;
  --info-text:#1e40af;
  --bg:#f8fafc;
  --card:#fff;
  --text:#0f172a;
  --text-secondary:#64748b;
  --text-muted:#94a3b8;
  --border:#e2e8f0;
  --sidebar-bg:#0f172a;
  --sidebar-text:#cbd5e1;
  --sidebar-active:#6366f1;
  --shadow-sm:0 1px 2px rgba(0,0,0,.05);
  --shadow:0 1px 3px rgba(0,0,0,.1),0 1px 2px rgba(0,0,0,.06);
  --shadow-md:0 4px 6px rgba(0,0,0,.07),0 2px 4px rgba(0,0,0,.06);
  --shadow-lg:0 10px 15px rgba(0,0,0,.1),0 4px 6px rgba(0,0,0,.05);
  --radius:12px;
  --radius-sm:8px;
  --radius-xs:6px;
  --transition:150ms ease;
  --toast-bg:#fff;
  --toast-text:#0f172a;
  --overlay:rgba(0,0,0,.5);
  --skeleton-base:#e2e8f0;
  --skeleton-shine:#f1f5f9;
}
[data-theme="dark"]{
  --bg:#0f172a;
  --card:#1e293b;
  --text:#f1f5f9;
  --text-secondary:#94a3b8;
  --text-muted:#64748b;
  --border:#334155;
  --sidebar-bg:#020617;
  --sidebar-text:#94a3b8;
  --sidebar-active:#6366f1;
  --shadow-sm:0 1px 2px rgba(0,0,0,.2);
  --shadow:0 1px 3px rgba(0,0,0,.3),0 1px 2px rgba(0,0,0,.2);
  --shadow-md:0 4px 6px rgba(0,0,0,.3),0 2px 4px rgba(0,0,0,.2);
  --shadow-lg:0 10px 15px rgba(0,0,0,.4),0 4px 6px rgba(0,0,0,.2);
  --primary-bg:#1e1b4b;
  --success-bg:#064e3b;
  --success-text:#6ee7b7;
  --danger-bg:#7f1d1d;
  --danger-text:#fca5a5;
  --warning-bg:#78350f;
  --warning-text:#fde68a;
  --info-bg:#1e3a5f;
  --info-text:#93c5fd;
  --toast-bg:#1e293b;
  --toast-text:#f1f5f9;
  --overlay:rgba(0,0,0,.7);
  --skeleton-base:#1e293b;
  --skeleton-shine:#334155;
}

html{font-size:16px;scroll-behavior:smooth}
body{
  font-family:'Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  background:var(--bg);color:var(--text);
  line-height:1.6;-webkit-font-smoothing:antialiased;
  transition:background .3s ease,color .3s ease
}

/* ─── Skip Link (a11y) ─── */
.skip-link{
  position:absolute;top:-100%;left:8px;z-index:1000;
  background:var(--primary);color:#fff;padding:8px 16px;
  border-radius:0 0 var(--radius-xs) var(--radius-xs);
  font-size:13px;font-weight:600;text-decoration:none;
  transition:top .2s ease
}
.skip-link:focus{top:0}

/* ─── Login Screen ─── */
.login-screen{
  min-height:100vh;display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,#0f172a 0%,#1e293b 100%);
  padding:20px
}
.login-card{
  background:var(--card);border-radius:16px;padding:40px;
  width:100%;max-width:400px;box-shadow:var(--shadow-lg);
  animation:slideUp .4s ease
}
.login-card h1{font-size:24px;font-weight:700;margin-bottom:4px;text-align:center}
.login-card p{font-size:14px;color:var(--text-secondary);text-align:center;margin-bottom:28px}
.login-card label{font-size:13px;font-weight:600;color:var(--text-secondary);margin-bottom:6px;display:block}
.login-card input{width:100%;padding:12px 16px;border:1px solid var(--border);border-radius:var(--radius-sm);
  font-size:14px;background:var(--card);color:var(--text);transition:var(--transition)}
.login-card input:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-bg);outline:none}
.login-error{color:var(--danger);font-size:13px;text-align:center;margin-top:12px;padding:8px 12px;
  background:var(--danger-bg);border-radius:var(--radius-xs);display:none}
.login-error.show{display:block}

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

/* ─── Sidebar ─── */
.sidebar{
  width:240px;background:var(--sidebar-bg);display:flex;flex-direction:column;
  position:fixed;top:0;left:0;bottom:0;z-index:100;
  transition:transform .25s cubic-bezier(.4,0,.2,1);
  will-change:transform
}
.sidebar-brand{
  padding:20px 20px 16px;border-bottom:1px solid rgba(255,255,255,.08);
  display:flex;align-items:center;gap:10px
}
.sidebar-brand .logo{
  width:32px;height:32px;background:var(--primary);border-radius:8px;
  display:flex;align-items:center;justify-content:center;flex-shrink:0
}
.sidebar-brand h1{font-size:14px;font-weight:600;color:#fff;margin:0;line-height:1.3}
.sidebar-brand small{font-size:11px;color:var(--sidebar-text);display:block;margin-top:1px;opacity:.6}

.sidebar-nav{padding:12px 10px;flex:1;overflow-y:auto;scrollbar-width:thin;scrollbar-color:rgba(255,255,255,.15) transparent}
.sidebar-nav::-webkit-scrollbar{width:4px}
.sidebar-nav::-webkit-scrollbar-track{background:transparent}
.sidebar-nav::-webkit-scrollbar-thumb{background:rgba(255,255,255,.15);border-radius:4px}
.sidebar-nav::-webkit-scrollbar-thumb:hover{background:rgba(255,255,255,.25)}
.nav-item{
  display:flex;align-items:center;gap:10px;
  padding:10px 14px;border-radius:var(--radius-sm);
  color:var(--sidebar-text);font-size:13px;font-weight:500;
  cursor:pointer;transition:all .15s ease;text-decoration:none;
  margin-bottom:2px;position:relative;overflow:hidden
}
.nav-item:hover{background:rgba(255,255,255,.08);color:#fff}
.nav-item:focus-visible{outline:2px solid var(--primary);outline-offset:-2px}
.nav-item.active{background:var(--primary);color:#fff;box-shadow:0 2px 8px rgba(99,102,241,.4)}
.nav-item .nav-icon{width:18px;height:18px;flex-shrink:0;color:currentColor}
.nav-item .nav-badge{margin-left:auto;font-size:10px;padding:2px 8px;border-radius:10px;font-weight:600}

/* Sidebar backdrop (mobile) */
.sidebar-backdrop{
  position:fixed;inset:0;z-index:99;background:var(--overlay);
  opacity:0;pointer-events:none;transition:opacity .25s ease
}
.sidebar-backdrop.show{opacity:1;pointer-events:auto}

.sidebar-footer{
  padding:14px 16px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;align-items:center;gap:10px
}
.sidebar-footer .user-meta{flex:1;min-width:0}
.sidebar-footer .user-name{font-size:12px;font-weight:600;color:#e2e8f0}
.sidebar-footer .user-status{font-size:11px;color:var(--sidebar-text)}
.sidebar-footer .logout-btn{
  background:none;border:1px solid rgba(255,255,255,.15);color:var(--sidebar-text);
  padding:6px 12px;border-radius:var(--radius-xs);font-size:11px;cursor:pointer;transition:var(--transition)
}
.sidebar-footer .logout-btn:hover{background:rgba(239,68,68,.15);border-color:var(--danger);color:var(--danger)}
.sidebar-footer .logout-btn:focus-visible{outline:2px solid var(--danger);outline-offset:2px}

/* ─── Main Content ─── */
.main-content{margin-left:240px;flex:1;min-width:0;padding:0;transition:margin .25s ease}
.topbar{
  background:var(--card);border-bottom:1px solid var(--border);
  padding:16px 28px;display:flex;align-items:center;justify-content:space-between;
  position:sticky;top:0;z-index:50;
  transition:background .3s ease,border-color .3s ease
}
.topbar-left h2{font-size:18px;font-weight:600;margin:0}
.topbar-left p{font-size:12px;color:var(--text-muted);margin:2px 0 0 0}
.topbar-right{display:flex;align-items:center;gap:8px}
.topbar-status{font-size:11px;padding:4px 10px;border-radius:20px;font-weight:500}

.dark-toggle{
  background:none;border:1px solid var(--border);border-radius:var(--radius-xs);
  width:34px;height:34px;display:flex;align-items:center;justify-content:center;
  cursor:pointer;transition:var(--transition);color:var(--text-secondary)
}
.dark-toggle:hover{background:var(--primary-bg);color:var(--primary)}
.dark-toggle:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

.content{padding:24px 28px;animation:fadeIn .25s ease}

/* ─── Status Bar ─── */
.status-bar{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:12px;margin-bottom:24px
}
.status-item{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-sm);
  padding:14px 18px;display:flex;align-items:center;gap:12px;
  transition:var(--transition)
}
.status-item:hover{box-shadow:var(--shadow-sm)}
.status-dot{width:10px;height:10px;border-radius:50%;flex-shrink:0}
.status-dot.green{background:var(--success);box-shadow:0 0 6px rgba(16,185,129,.4)}
.status-dot.red{background:var(--danger);box-shadow:0 0 6px rgba(239,68,68,.4)}
.status-dot.yellow{background:var(--warning);box-shadow:0 0 6px rgba(245,158,11,.4)}
.status-item .label{font-size:12px;color:var(--text-muted)}
.status-item .value{font-size:13px;font-weight:600;color:var(--text)}

/* ─── Stats Grid ─── */
.stats-grid{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;margin-bottom:24px
}
.stat-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:20px;transition:transform .2s ease,box-shadow .2s ease;position:relative;overflow:hidden
}
.stat-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px)}
.stat-card .stat-icon{width:24px;height:24px;margin-bottom:10px;opacity:.7;color:var(--accent,var(--text))}
.stat-card .stat-value{font-size:28px;font-weight:700;color:var(--text);line-height:1.2;transition:color .3s}
.stat-card .stat-label{font-size:12px;color:var(--text-muted);margin-top:4px;font-weight:500}

/* ─── Toast Container ─── */
.toast-container{
  position:fixed;top:16px;right:16px;z-index:1000;
  display:flex;flex-direction:column;gap:8px;pointer-events:none
}
.toast{
  pointer-events:auto;padding:12px 16px;border-radius:var(--radius-sm);
  font-size:13px;line-height:1.5;font-weight:500;
  min-width:280px;max-width:420px;
  box-shadow:var(--shadow-md);
  display:flex;align-items:flex-start;gap:10px;
  animation:toastIn .3s ease;
  transition:opacity .3s ease,transform .3s ease;
  background:var(--toast-bg);color:var(--toast-text);
  border:1px solid var(--border)
}
.toast.toast-out{opacity:0;transform:translateX(100%)}
.toast .toast-icon{flex-shrink:0;margin-top:1px}
.toast .toast-body{flex:1}
.toast .toast-close{
  background:none;border:none;cursor:pointer;flex-shrink:0;
  padding:2px;color:var(--text-muted);font-size:14px;line-height:1
}
.toast.toast-success{border-left:3px solid var(--success)}
.toast.toast-error{border-left:3px solid var(--danger)}
.toast.toast-warning{border-left:3px solid var(--warning)}
.toast.toast-info{border-left:3px solid var(--info)}
@keyframes toastIn{from{opacity:0;transform:translateX(40px)}to{opacity:1;transform:translateX(0)}}

/* ─── Modal ─── */
.modal-overlay{
  position:fixed;inset:0;z-index:999;
  background:var(--overlay);display:flex;align-items:center;justify-content:center;
  opacity:0;pointer-events:none;transition:opacity .25s ease
}
.modal-overlay.show{opacity:1;pointer-events:auto}
.modal-box{
  background:var(--card);border-radius:var(--radius);
  padding:28px;width:90%;max-width:400px;box-shadow:var(--shadow-lg);
  animation:slideUp .25s ease
}
.modal-box h3{font-size:16px;font-weight:600;margin-bottom:8px}
.modal-box p{font-size:13px;color:var(--text-secondary);margin-bottom:20px;line-height:1.5}
.modal-actions{display:flex;gap:8px;justify-content:flex-end}
.modal-actions .btn{min-width:80px}

/* ─── Skeleton ─── */
.skeleton{background:var(--skeleton-base);border-radius:var(--radius-xs);position:relative;overflow:hidden}
.skeleton::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(90deg,transparent,var(--skeleton-shine),transparent);
  animation:shimmer 1.5s infinite
}
.skel-stat{height:120px;border-radius:var(--radius)}
.skel-text{height:14px;margin-bottom:8px}
.skel-text-sm{height:10px;width:60%}
.skel-table{height:16px;margin-bottom:10px}
.skel-row{display:flex;gap:12px;margin-bottom:12px}
.skel-cell{flex:1}
@keyframes shimmer{0%{transform:translateX(-100%)}100%{transform:translateX(100%)}}

/* ─── Cards ─── */
.card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:24px;margin-bottom:20px;box-shadow:var(--shadow-sm);
  transition:background .3s ease,border-color .3s ease,box-shadow .3s
}
.card:hover{box-shadow:var(--shadow)}
.card-header{
  display:flex;justify-content:space-between;align-items:center;margin-bottom:20px
}
.card-header h2{font-size:16px;font-weight:600;margin:0}
.card-header p{font-size:12px;color:var(--text-muted);margin:2px 0 0 0}
.card-actions{display:flex;gap:8px;align-items:center}

/* ─── Tables ─── */
.table-wrap{overflow-x:auto;margin:-4px;position:relative}
table{width:100%;border-collapse:separate;border-spacing:0;font-size:13px}
thead th{
  text-align:left;padding:10px 12px;
  background:var(--primary-bg);
  border-bottom:2px solid var(--primary);
  color:var(--primary);font-weight:700;font-size:11px;
  text-transform:uppercase;letter-spacing:.6px;
  white-space:nowrap;user-select:none;
  transition:color .3s,background .3s
}
thead th:first-child{border-radius:var(--radius-xs) 0 0 0}
thead th:last-child{border-radius:0 var(--radius-xs) 0 0}
thead th.sortable{cursor:pointer}
thead th.sortable:hover{background:var(--primary);color:#fff}
thead th.sortable{cursor:pointer}
thead th.sortable:hover{color:var(--text)}
thead th .sort-icon{display:inline-block;width:12px;margin-left:4px;opacity:.4;vertical-align:middle}
thead th.sort-asc .sort-icon,.thead th.sort-desc .sort-icon{opacity:1;color:var(--primary)}
tbody td{padding:12px;border-bottom:1px solid var(--border);vertical-align:middle;
  transition:background .3s}
tbody tr{transition:background .1s ease}
tbody tr:hover{background:var(--primary-bg)}
tbody tr:last-child td{border-bottom:none}
.table-row-enter{animation:rowIn .25s ease both}
@keyframes rowIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}

/* sticky header */
.table-sticky thead th{position:sticky;top:0;background:var(--card);z-index:2}

/* scroll indicator */
.table-wrap::after{
  content:'';position:absolute;right:0;top:0;bottom:0;width:24px;
  background:linear-gradient(90deg,transparent,var(--bg));
  pointer-events:none;opacity:0;transition:opacity .3s
}
.table-wrap.scrollable::after{opacity:1}
.table-wrap.scrollable-start::after{opacity:0}

/* ─── Badges ─── */
.badge{
  display:inline-flex;padding:3px 10px;border-radius:20px;
  font-size:11px;font-weight:600;line-height:1.4
}
.badge-green{background:var(--success-bg);color:var(--success-text)}
.badge-red{background:var(--danger-bg);color:var(--danger-text)}
.badge-yellow{background:var(--warning-bg);color:var(--warning-text)}
.badge-blue{background:var(--info-bg);color:var(--info-text)}
.badge-gray{background:#f1f5f9;color:#475569}

/* ─── Forms ─── */
.form-group{margin-bottom:16px}
.form-group label{display:block;font-size:12px;font-weight:600;color:var(--text-secondary);margin-bottom:6px}
.form-control{
  width:100%;padding:10px 14px;border:1px solid var(--border);
  border-radius:var(--radius-sm);font-size:13px;font-family:inherit;
  transition:var(--transition);background:var(--card);color:var(--text)
}
.form-control:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-bg);outline:none}
.form-control::placeholder{color:var(--text-muted)}
.form-control.is-invalid{border-color:var(--danger)}
.form-control.is-invalid:focus{box-shadow:0 0 0 3px var(--danger-bg)}
.invalid-feedback{font-size:11px;color:var(--danger);margin-top:4px;display:none}
.invalid-feedback.show{display:block}
select.form-control{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%2364748b' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:32px}
.form-row{display:flex;gap:12px;flex-wrap:wrap}
.form-row > *{flex:1;min-width:150px}
.input-group{display:flex;gap:0}
.input-group .form-control{border-radius:var(--radius-sm) 0 0 var(--radius-sm)}
.input-group .input-append{border:1px solid var(--border);border-left:none;border-radius:0 var(--radius-sm) var(--radius-sm) 0;padding:10px 14px;background:#f8fafc;font-size:13px;color:var(--text-secondary)}
[data-theme="dark"] .input-group .input-append{background:#0f172a;color:var(--text-muted)}

/* ─── Buttons ─── */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:10px 20px;border:none;border-radius:var(--radius-sm);
  font-size:13px;font-weight:600;cursor:pointer;
  transition:all .15s ease;text-decoration:none;line-height:1.4;position:relative
}
.btn:active{transform:scale(.96)}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);box-shadow:0 2px 8px rgba(99,102,241,.4)}
.btn-success{background:var(--success);color:#fff}
.btn-success:hover{background:#059669;box-shadow:0 2px 8px rgba(16,185,129,.4)}
.btn-danger{background:var(--danger);color:#fff}
.btn-danger:hover{background:#dc2626;box-shadow:0 2px 8px rgba(239,68,68,.4)}
.btn-warning{background:var(--warning);color:#fff}
.btn-warning:hover{background:#d97706}
.btn-outline{background:transparent;border:1px solid var(--border);color:var(--text)}
.btn-outline:hover{background:#f8fafc;border-color:var(--text-muted)}
[data-theme="dark"] .btn-outline:hover{background:#0f172a}
.btn-ghost{background:transparent;color:var(--text-secondary)}
.btn-ghost:hover{background:#f1f5f9;color:var(--text)}
[data-theme="dark"] .btn-ghost:hover{background:#0f172a}
.btn-sm{padding:6px 14px;font-size:12px}
.btn-xs{padding:4px 10px;font-size:11px}
.btn-block{width:100%;justify-content:center}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}
.btn .btn-spinner{width:14px;height:14px;border:2px solid rgba(255,255,255,.3);border-top-color:#fff;border-radius:50%;animation:spin .5s linear infinite}

/* ─── Alerts ─── */
.alert{
  padding:12px 16px;border-radius:var(--radius-sm);
  font-size:13px;line-height:1.5;margin-bottom:12px
}
.alert-info{background:var(--info-bg);border:1px solid #93c5fd;color:var(--info-text)}
.alert-success{background:var(--success-bg);border:1px solid #6ee7b7;color:var(--success-text)}
.alert-danger{background:var(--danger-bg);border:1px solid #fca5a5;color:var(--danger-text)}
.alert-warning{background:var(--warning-bg);border:1px solid #fcd34d;color:var(--warning-text)}

/* ─── Pagination ─── */
.pagination{
  display:flex;align-items:center;justify-content:center;
  gap:8px;margin-top:16px;padding-top:16px;border-top:1px solid var(--border)
}
.pagination .page-info{font-size:12px;color:var(--text-muted);margin:0 4px}
.pagination .btn:disabled{opacity:.4;cursor:not-allowed;transform:none}

/* ─── Steps ─── */
.steps{display:flex;gap:8px;margin-bottom:24px}
.step{
  flex:1;padding:10px 16px;border-radius:var(--radius-sm);
  font-size:13px;font-weight:500;text-align:center;
  background:#f1f5f9;color:var(--text-muted);position:relative;
  transition:var(--transition)
}
[data-theme="dark"] .step{background:#0f172a;color:var(--text-muted)}
.step.active{background:var(--primary);color:#fff;box-shadow:0 2px 8px rgba(99,102,241,.3)}
.step.done{background:var(--success-bg);color:var(--success-text)}
.step:not(:last-child)::after{
  content:'';position:absolute;right:-14px;top:50%;
  width:12px;height:12px;transform:translateY(-50%) rotate(-45deg);
  border-right:2px solid var(--border);border-top:2px solid var(--border)
}

/* ─── Loading ─── */
.loading-state{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:48px 20px;color:var(--text-muted)}
.spinner{width:24px;height:24px;border:3px solid var(--border);border-top-color:var(--primary);border-radius:50%;animation:spin .6s linear infinite;margin-bottom:12px}
@keyframes spin{to{transform:rotate(360deg)}}
.loading-state .msg{font-size:13px;color:var(--text-muted)}

/* ─── Empty State ─── */
.empty-state{text-align:center;padding:48px 20px;color:var(--text-muted)}
.empty-state .empty-icon{width:36px;height:36px;margin-bottom:12px;color:var(--text-muted)}
.empty-state .empty-title{font-size:14px;font-weight:600;color:var(--text-secondary);margin-bottom:4px}
.empty-state .empty-desc{font-size:12px}

/* ─── Code / Pre ─── */
code{background:#f1f5f9;padding:2px 6px;border-radius:4px;font-size:12px;font-family:'JetBrains Mono','Fira Code',monospace}
[data-theme="dark"] code{background:#0f172a;color:#e2e8f0}
pre{
  background:#0f172a;color:#e2e8f0;padding:16px;border-radius:var(--radius-sm);
  font-size:12px;overflow-x:auto;white-space:pre-wrap;word-break:break-all;
  line-height:1.7;font-family:'JetBrains Mono','Fira Code',monospace
}
.copy-btn{background:transparent;border:1px solid var(--border);padding:4px 8px;border-radius:4px;font-size:11px;cursor:pointer;transition:var(--transition);color:var(--text-secondary)}
.copy-btn:hover{background:#f1f5f9;color:var(--text)}
.copy-btn.copied{background:var(--success-bg);border-color:var(--success);color:var(--success-text)}

/* ─── Utility Classes ─── */
.row{display:flex;gap:16px;flex-wrap:wrap}
.col{flex:1;min-width:250px}
.inline-flex{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
.hidden{display:none!important}
.mt-0{margin-top:0}.mt-4{margin-top:16px}.mb-4{margin-bottom:16px}.mb-0{margin-bottom:0}
.text-center{text-align:center}.text-right{text-align:right}.text-muted{color:var(--text-muted)}
.truncate{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.gap-2{gap:8px}.flex-center{display:flex;align-items:center;justify-content:center}

/* ─── Iframe ─── */
.iframe-wrap{height:calc(100vh - 140px);border-radius:var(--radius);overflow:hidden;border:1px solid var(--border)}
.iframe-wrap iframe{width:100%;height:100%;border:none}

/* ─── Value Display (playground) ─── */
.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--border);border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden;margin-top:12px}
.detail-grid > div{padding:10px 14px;background:var(--card);font-size:12px;display:flex;justify-content:space-between;align-items:center}
.detail-grid .label{color:var(--text-muted);font-weight:500}
.detail-grid .value{font-weight:600;font-family:monospace;word-break:break-all;text-align:right;max-width:60%}
.qr-box{text-align:center;padding:16px;background:#f8fafc;border-radius:8px}
[data-theme="dark"] .qr-box{background:#0f172a}
.qr-frame{display:inline-block;border:2px solid var(--border);border-radius:6px;padding:4px;background:#fff}
.qr-frame svg{width:160px;height:160px;display:block}
.qr-amount{margin-top:8px;font-size:15px;font-weight:700;color:var(--text)}

/* ─── Animations ─── */
@keyframes slideUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.tab-content{animation:fadeIn .2s ease}

/* ─── Tabs inside content ─── */
.section-tabs{display:flex;gap:0;margin-bottom:20px;border-bottom:1px solid var(--border)}
.section-tab{padding:10px 18px;font-size:13px;font-weight:500;color:var(--text-muted);cursor:pointer;
  border-bottom:2px solid transparent;margin-bottom:-1px;transition:var(--transition)}
.section-tab:hover{color:var(--text)}
.section-tab.active{color:var(--primary);border-bottom-color:var(--primary)}

/* ─── Mobile ─── */
.sidebar-toggle{display:none;background:none;border:none;font-size:20px;cursor:pointer;color:var(--text);padding:6px;border-radius:var(--radius-xs)}
.sidebar-toggle:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.copy-btn{background:transparent;border:1px solid var(--border);padding:4px 8px;border-radius:4px;font-size:11px;cursor:pointer;transition:var(--transition);color:var(--text-secondary)}
.copy-btn:hover{background:#f1f5f9;color:var(--text)}
.copy-btn.copied{background:var(--success-bg);border-color:var(--success);color:var(--success-text)}

.tooltip{
  position:relative;
  cursor:pointer
}
.tooltip::after{
  content:attr(data-tip);position:absolute;bottom:calc(100% + 6px);
  left:50%;transform:translateX(-50%);padding:4px 10px;
  background:#0f172a;color:#fff;font-size:11px;font-weight:500;
  border-radius:4px;white-space:nowrap;opacity:0;pointer-events:none;
  transition:opacity .15s ease
}
[data-theme="dark"] .tooltip::after{background:#f1f5f9;color:#0f172a}
.tooltip:hover::after{opacity:1}

@media(max-width:768px){
  .sidebar{transform:translateX(-100%)}
  .sidebar.open{transform:translateX(0)}
  .sidebar-toggle{display:flex}
  .main-content{margin-left:0}
  .content{padding:16px}
  .topbar{padding:12px 16px}
  .status-bar{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .form-row > *{min-width:100%}
  .login-card{padding:28px;margin:12px}
  .detail-grid{grid-template-columns:1fr}
  .toast{min-width:auto;max-width:calc(100vw - 32px)}
  .step:not(:last-child)::after{display:none}
}

@media(max-width:400px){
  .stats-grid{grid-template-columns:1fr}
}