/* ═══════════════════════════════════════════════════════
   LOYALTA — Admin Panel Styles
   ═══════════════════════════════════════════════════════ */

/* ---------- Variables (inherit from main) ---------- */
:root {
  --bg-primary: #07070e;
  --bg-secondary: #0d0d1a;
  --bg-sidebar: #0a0a16;
  --bg-card: rgba(255,255,255,0.04);
  --bg-card-hover: rgba(255,255,255,0.07);
  --bg-input: rgba(255,255,255,0.06);
  --border-subtle: rgba(255,255,255,0.08);
  --border-hover: rgba(255,255,255,0.15);
  --border-input: rgba(255,255,255,0.12);

  --text-primary: #f0f0f5;
  --text-secondary: rgba(240,240,245,0.6);
  --text-muted: rgba(240,240,245,0.35);

  --accent-1: #7c5cfc;
  --accent-2: #00d4aa;
  --accent-3: #ff6b9d;
  --accent-4: #38bdf8;
  --accent-orange: #fb923c;
  --accent-gradient: linear-gradient(135deg, #7c5cfc 0%, #00d4aa 100%);

  --danger: #ef4444;
  --warning: #f59e0b;
  --success: #10b981;

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;

  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --sidebar-width: 260px;
  --header-height: 64px;

  --transition-fast: .15s ease;
  --transition-base: .25s ease;
}

/* ---------- Reset ---------- */
*,*::before,*::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-main);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
button { font-family: var(--font-main); }
ul { list-style: none; }

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

/* ---------- SIDEBAR ---------- */
.sidebar {
  width: var(--sidebar-width);
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
  transition: transform var(--transition-base);
}

.sidebar-header {
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--border-subtle);
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -.02em;
}
.sidebar-logo .logo-icon {
  width: 34px; height: 34px;
  border-radius: 9px;
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

.sidebar-nav {
  flex: 1;
  padding: 12px;
  overflow-y: auto;
}

.sidebar-section {
  margin-bottom: 8px;
}

.sidebar-section-title {
  font-size: .68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .12em;
  color: var(--text-muted);
  padding: 12px 12px 6px;
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  font-size: .88rem;
  font-weight: 500;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}
.sidebar-link:hover {
  background: rgba(255,255,255,0.05);
  color: var(--text-primary);
}
.sidebar-link.active {
  background: rgba(124,92,252,0.12);
  color: var(--accent-1);
  font-weight: 600;
}
.sidebar-link .link-icon {
  width: 20px;
  text-align: center;
  font-size: 1rem;
}
.sidebar-link .link-badge {
  margin-left: auto;
  padding: 2px 8px;
  border-radius: 100px;
  background: rgba(124,92,252,0.15);
  color: var(--accent-1);
  font-size: .72rem;
  font-weight: 700;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border-subtle);
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px;
  border-radius: var(--radius-md);
}
.sidebar-user .user-avatar {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: var(--accent-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .9rem;
  font-weight: 700;
  color: #fff;
}
.sidebar-user .user-info {
  flex: 1;
  min-width: 0;
}
.sidebar-user .user-name {
  font-size: .85rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.sidebar-user .user-role {
  font-size: .72rem;
  color: var(--text-muted);
}

/* ---------- MAIN CONTENT ---------- */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-height: 100vh;
}

/* ---------- Top Header ---------- */
.top-header {
  height: var(--header-height);
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  background: rgba(7,7,14,0.8);
  backdrop-filter: blur(16px);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.mobile-sidebar-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.4rem;
  cursor: pointer;
  padding: 4px;
}

.page-title {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -.01em;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-search {
  position: relative;
}
.header-search input {
  background: var(--bg-input);
  border: 1px solid var(--border-input);
  border-radius: var(--radius-md);
  padding: 8px 14px 8px 36px;
  color: var(--text-primary);
  font-size: .85rem;
  width: 240px;
  outline: none;
  transition: all var(--transition-fast);
  font-family: var(--font-main);
}
.header-search input::placeholder { color: var(--text-muted); }
.header-search input:focus {
  border-color: var(--accent-1);
  box-shadow: 0 0 0 3px rgba(124,92,252,0.15);
}
.header-search .search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  font-size: .85rem;
}

.header-btn {
  width: 38px; height: 38px;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  cursor: pointer;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  position: relative;
}
.header-btn:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
}
.header-btn .badge-dot {
  position: absolute;
  top: 6px; right: 6px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent-3);
}

/* ---------- Page Content ---------- */
.page-content {
  padding: 28px;
}

/* ---------- Stats Grid ---------- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 28px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 22px;
  transition: all var(--transition-base);
}
.stat-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}

.stat-card .stat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.stat-card .stat-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
}
.stat-icon.purple { background: rgba(124,92,252,0.12); }
.stat-icon.green { background: rgba(0,212,170,0.12); }
.stat-icon.pink { background: rgba(255,107,157,0.12); }
.stat-icon.blue { background: rgba(56,189,248,0.12); }
.stat-icon.orange { background: rgba(251,146,60,0.12); }

.stat-card .stat-change {
  font-size: .75rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 100px;
}
.stat-change.up {
  background: rgba(16,185,129,0.12);
  color: var(--success);
}
.stat-change.down {
  background: rgba(239,68,68,0.12);
  color: var(--danger);
}

.stat-card .stat-value {
  font-size: 1.7rem;
  font-weight: 800;
  letter-spacing: -.03em;
  margin-bottom: 4px;
}
.stat-card .stat-label {
  font-size: .82rem;
  color: var(--text-muted);
}

/* ---------- Cards / Panels ---------- */
.panel {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 24px;
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  border-bottom: 1px solid var(--border-subtle);
}
.panel-title {
  font-size: 1rem;
  font-weight: 700;
}
.panel-body { padding: 22px; }
.panel-body.no-pad { padding: 0; }

/* ---------- Chart area ---------- */
.chart-container {
  position: relative;
  width: 100%;
  height: 280px;
}
.chart-container canvas {
  width: 100% !important;
  height: 100% !important;
}

/* ---------- Grid system ---------- */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.grid-3-1 {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 24px;
}

/* ---------- Table ---------- */
.data-table {
  width: 100%;
  border-collapse: collapse;
}
.data-table th {
  text-align: left;
  padding: 12px 16px;
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--text-muted);
  border-bottom: 1px solid var(--border-subtle);
  white-space: nowrap;
}
.data-table td {
  padding: 14px 16px;
  font-size: .88rem;
  border-bottom: 1px solid rgba(255,255,255,0.03);
  vertical-align: middle;
}
.data-table tbody tr {
  transition: background var(--transition-fast);
  cursor: pointer;
}
.data-table tbody tr:hover {
  background: rgba(255,255,255,0.03);
}

.client-cell {
  display: flex;
  align-items: center;
  gap: 12px;
}
.client-avatar {
  width: 36px; height: 36px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .8rem;
  font-weight: 700;
  color: #fff;
  flex-shrink: 0;
}
.client-info .client-name {
  font-weight: 600;
  font-size: .88rem;
}
.client-info .client-phone {
  font-size: .78rem;
  color: var(--text-muted);
}

/* ---------- Badges ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: .75rem;
  font-weight: 600;
}
.badge-earn { background: rgba(16,185,129,0.12); color: var(--success); }
.badge-redeem { background: rgba(239,68,68,0.12); color: var(--danger); }
.badge-adjust { background: rgba(245,158,11,0.12); color: var(--warning); }

.badge-new { background: rgba(56,189,248,0.12); color: var(--accent-4); }
.badge-active { background: rgba(16,185,129,0.12); color: var(--success); }
.badge-vip { background: rgba(255,215,0,0.12); color: #ffd700; }
.badge-sleeping { background: rgba(239,68,68,0.12); color: var(--danger); }

.level-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: .75rem;
  font-weight: 700;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  font-size: .85rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  font-family: var(--font-main);
}
.btn-sm { padding: 7px 14px; font-size: .8rem; }
.btn-primary {
  background: var(--accent-1);
  color: #fff;
  box-shadow: 0 2px 12px rgba(124,92,252,0.25);
}
.btn-primary:hover { background: #6a48e8; transform: translateY(-1px); }

.btn-success {
  background: var(--success);
  color: #fff;
}
.btn-success:hover { background: #059669; }

.btn-danger {
  background: var(--danger);
  color: #fff;
}
.btn-danger:hover { background: #dc2626; }

.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
}
.btn-secondary:hover { background: var(--bg-card-hover); border-color: var(--border-hover); }

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 10px 14px;
}
.btn-ghost:hover { color: var(--text-primary); background: rgba(255,255,255,0.04); }

.btn-group { display: flex; gap: 8px; }

/* ---------- Forms ---------- */
.form-group {
  margin-bottom: 18px;
}
.form-label {
  display: block;
  font-size: .82rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
}
.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 10px 14px;
  background: var(--bg-input);
  border: 1px solid var(--border-input);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: .88rem;
  font-family: var(--font-main);
  outline: none;
  transition: all var(--transition-fast);
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--accent-1);
  box-shadow: 0 0 0 3px rgba(124,92,252,0.15);
}
.form-input::placeholder,
.form-textarea::placeholder { color: var(--text-muted); }

.form-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 12 12'%3E%3Cpath fill='%23888' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}

.form-textarea { resize: vertical; min-height: 80px; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* ---------- Modal ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(8px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}
.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal {
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(20px) scale(.97);
  transition: transform var(--transition-base);
}
.modal-overlay.active .modal {
  transform: translateY(0) scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 24px;
  border-bottom: 1px solid var(--border-subtle);
}
.modal-title {
  font-size: 1.1rem;
  font-weight: 700;
}
.modal-close {
  width: 32px; height: 32px;
  border-radius: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}
.modal-close:hover { background: var(--bg-card-hover); color: var(--text-primary); }

.modal-body { padding: 24px; }
.modal-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* Wide modal */
.modal.modal-wide { max-width: 680px; }

/* ---------- Client Detail ---------- */
.client-detail-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 28px;
}
.client-detail-avatar {
  width: 64px; height: 64px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 800;
  color: #fff;
}
.client-detail-name {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -.02em;
}
.client-detail-meta {
  display: flex;
  gap: 16px;
  margin-top: 4px;
  font-size: .82rem;
  color: var(--text-secondary);
}

.client-stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 24px;
}
.client-stat-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  text-align: center;
}
.client-stat-card .cs-value {
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -.02em;
}
.client-stat-card .cs-label {
  font-size: .75rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* ---------- Offer card ---------- */
.offer-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 22px;
  transition: all var(--transition-base);
  margin-bottom: 16px;
}
.offer-card:hover {
  border-color: var(--border-hover);
}

.offer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 10px;
}
.offer-title {
  font-weight: 700;
  font-size: 1rem;
}
.offer-status {
  padding: 3px 10px;
  border-radius: 100px;
  font-size: .72rem;
  font-weight: 700;
}
.offer-status.active { background: rgba(16,185,129,0.12); color: var(--success); }
.offer-status.inactive { background: rgba(255,255,255,0.06); color: var(--text-muted); }

.offer-desc {
  font-size: .85rem;
  color: var(--text-secondary);
  margin-bottom: 12px;
  line-height: 1.5;
}
.offer-meta {
  display: flex;
  gap: 20px;
  font-size: .78rem;
  color: var(--text-muted);
}

/* ---------- Settings ---------- */
.settings-section {
  margin-bottom: 32px;
}
.settings-title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-subtle);
}

.level-row {
  display: grid;
  grid-template-columns: 120px 1fr 100px 60px;
  gap: 12px;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid rgba(255,255,255,0.03);
}
.level-color {
  width: 12px; height: 12px;
  border-radius: 50%;
  display: inline-block;
}

/* ---------- Tab nav ---------- */
.tab-nav {
  display: flex;
  gap: 4px;
  margin-bottom: 24px;
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 0;
}
.tab-btn {
  padding: 10px 18px;
  font-size: .85rem;
  font-weight: 600;
  color: var(--text-muted);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  margin-bottom: -1px;
}
.tab-btn:hover { color: var(--text-secondary); }
.tab-btn.active {
  color: var(--accent-1);
  border-bottom-color: var(--accent-1);
}

/* ---------- Filter bar ---------- */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.filter-bar .form-input,
.filter-bar .form-select {
  width: auto;
  min-width: 160px;
}

/* ---------- Empty state ---------- */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
}
.empty-state .empty-icon {
  font-size: 3rem;
  margin-bottom: 16px;
}
.empty-state p {
  font-size: .95rem;
  margin-bottom: 20px;
}

/* ---------- Bonus quick action ---------- */
.bonus-action-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 28px;
  text-align: center;
  transition: all var(--transition-base);
  cursor: pointer;
}
.bonus-action-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.2);
}
.bonus-action-card .action-icon {
  width: 56px; height: 56px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin: 0 auto 14px;
}
.bonus-action-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 6px;
}
.bonus-action-card p {
  font-size: .82rem;
  color: var(--text-secondary);
}

/* ---------- Toast notifications ---------- */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.toast {
  padding: 14px 20px;
  border-radius: var(--radius-md);
  background: var(--bg-secondary);
  border: 1px solid var(--border-subtle);
  box-shadow: 0 12px 40px rgba(0,0,0,0.4);
  font-size: .88rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
  animation: toastIn .3s ease-out;
  max-width: 360px;
}
.toast.success { border-left: 3px solid var(--success); }
.toast.error { border-left: 3px solid var(--danger); }
.toast.info { border-left: 3px solid var(--accent-1); }

@keyframes toastIn {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

/* ---------- Pagination ---------- */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 22px;
  border-top: 1px solid var(--border-subtle);
}
.pagination-info {
  font-size: .8rem;
  color: var(--text-muted);
}
.pagination-btns {
  display: flex;
  gap: 4px;
}
.pagination-btn {
  width: 34px; height: 34px;
  border-radius: 8px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: .82rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}
.pagination-btn:hover { background: var(--bg-card-hover); }
.pagination-btn.active {
  background: var(--accent-1);
  color: #fff;
  border-color: var(--accent-1);
}

/* ---------- Segment pills ---------- */
.segment-pills {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
}
.segment-pill {
  padding: 8px 16px;
  border-radius: 100px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  font-size: .82rem;
  font-weight: 600;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.segment-pill:hover { border-color: var(--border-hover); }
.segment-pill.active {
  background: rgba(124,92,252,0.12);
  border-color: rgba(124,92,252,0.3);
  color: var(--accent-1);
}
.segment-pill .pill-count {
  margin-left: 6px;
  font-size: .72rem;
  opacity: .7;
}

/* ---------- Responsive ---------- */
@media (max-width: 1200px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-3-1 { grid-template-columns: 1fr; }
  .client-stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main-content { margin-left: 0; }
  .mobile-sidebar-toggle { display: block; }
  .stats-grid { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .header-search input { width: 160px; }
  .client-detail-meta { flex-direction: column; gap: 4px; }
  .level-row { grid-template-columns: 1fr 1fr; }
  .page-content { padding: 16px; }
}