/* ── Reset & Base ──────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-bg: #f5f7fa;
  --color-surface: #ffffff;
  --color-border: #e2e8f0;
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  --color-success: #16a34a;
  --color-warning: #d97706;
  --color-danger: #dc2626;
  --color-danger-hover: #b91c1c;
  --shadow-sm: 0 1px 2px rgba(0,0,0,.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,.07), 0 2px 4px -2px rgba(0,0,0,.05);
  --radius: 8px;
  --radius-sm: 6px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial,
    "Noto Sans SC", sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
}

/* ── Layout ─────────────────────────────── */
.app-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 0 24px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.app-header h1 {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-primary);
}

.app-header .pin-indicator {
  font-size: 12px;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.app-header .pin-indicator .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-success);
}

.app-header .pin-indicator .dot.unlocked {
  background: var(--color-warning);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 24px;
}

/* ── Toolbar ─────────────────────────────── */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-bottom: 20px;
}

.search-box {
  flex: 1;
  min-width: 200px;
  position: relative;
}

.search-box input {
  width: 100%;
  padding: 8px 12px 8px 36px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  outline: none;
  transition: border-color .2s;
}

.search-box input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,.1);
}

.search-box::before {
  content: "🔍";
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 14px;
}

.toolbar select {
  padding: 8px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  background: var(--color-surface);
  outline: none;
  cursor: pointer;
  min-width: 120px;
}

.toolbar select:focus {
  border-color: var(--color-primary);
}

/* ── Buttons ─────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all .15s;
  text-decoration: none;
  white-space: nowrap;
}

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

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

.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}
.btn-ghost:hover {
  background: var(--color-bg);
  color: var(--color-text);
}

.btn-sm { padding: 4px 10px; font-size: 13px; }

/* ── Table ────────────────────────────────── */
.table-wrapper {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

table {
  width: 100%;
  border-collapse: collapse;
}

thead {
  background: #f8fafc;
  border-bottom: 2px solid var(--color-border);
}

th {
  padding: 12px 16px;
  text-align: left;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--color-text-muted);
  letter-spacing: .5px;
  white-space: nowrap;
}

td {
  padding: 12px 16px;
  font-size: 14px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}

tbody tr:hover { background: #f8fafc; }
tbody tr:last-child td { border-bottom: none; }

/* ── Status Badge ───────────────────────── */
.badge {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 500;
}

.badge-active       { background: #dcfce7; color: #166534; }
.badge-inactive     { background: #f1f5f9; color: #475569; }
.badge-blacklisted  { background: #fee2e2; color: #991b1b; }

/* ── Pagination ──────────────────────────── */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px;
  border-top: 1px solid var(--color-border);
}

.pagination button {
  padding: 6px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  font-size: 14px;
  cursor: pointer;
  transition: all .15s;
}

.pagination button:hover:not(:disabled) {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.pagination button:disabled {
  opacity: .4;
  cursor: not-allowed;
}

.pagination .page-info {
  font-size: 13px;
  color: var(--color-text-muted);
  margin: 0 8px;
}

/* ── Modal ────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.4);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 60px;
  z-index: 200;
  animation: fadeIn .15s;
}

.modal {
  background: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: 0 20px 60px rgba(0,0,0,.15);
  width: 100%;
  max-width: 560px;
  max-height: calc(100vh - 100px);
  overflow-y: auto;
  animation: slideUp .2s;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  background: var(--color-surface);
}

.modal-header h2 {
  font-size: 16px;
  font-weight: 600;
}

.modal-close {
  width: 32px;
  height: 32px;
  border: none;
  background: none;
  font-size: 20px;
  cursor: pointer;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  transition: all .15s;
}

.modal-close:hover {
  background: var(--color-bg);
  color: var(--color-text);
}

.modal-body {
  padding: 24px;
}

/* ── Form ────────────────────────────────── */
.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 4px;
}

.form-group label .required {
  color: var(--color-danger);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: border-color .15s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,.1);
}

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

.form-actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--color-border);
}

/* ── Empty State ─────────────────────────── */
.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--color-text-muted);
}

.empty-state .icon {
  font-size: 48px;
  margin-bottom: 12px;
}

.empty-state p {
  margin-bottom: 16px;
  font-size: 15px;
}

/* ── Toast ────────────────────────────────── */
.toast-container {
  position: fixed;
  top: 72px;
  right: 24px;
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: #fff;
  animation: slideIn .2s;
  box-shadow: var(--shadow-md);
}

.toast-success { background: var(--color-success); }
.toast-error   { background: var(--color-danger); }

/* ── Animations ──────────────────────────── */
@keyframes fadeIn  { from { opacity: 0 } to { opacity: 1 } }
@keyframes slideUp { from { opacity: 0; transform: translateY(12px) } to { opacity: 1; transform: translateY(0) } }
@keyframes slideIn { from { opacity: 0; transform: translateX(20px) } to { opacity: 1; transform: translateX(0) } }

/* ── Responsive ──────────────────────────── */
@media (max-width: 768px) {
  .container { padding: 12px; }
  .toolbar { flex-direction: column; align-items: stretch; }
  th:nth-child(4), td:nth-child(4),
  th:nth-child(5), td:nth-child(5) { display: none; } /* hide country & status on mobile */
  .modal { max-width: 100%; margin: 0 12px; }
}

@media (max-width: 480px) {
  th:nth-child(3), td:nth-child(3) { display: none; } /* hide contact too */
}