:root {
  --bg-dark: #0B1220;
  --bg-card: #111B2E;
  --bg-card-hover: #16243E;
  --border-color: #1F2A44;
  --text-main: #F1F5F9;
  --text-muted: #94A3B8;
  --primary: #3B82F6;
  --primary-hover: #2563EB;
  --emerald: #10B981;
  --emerald-hover: #059669;
  --amber: #F59E0B;
  --rose: #EF4444;
  --font-family: 'Cairo', -apple-system, BlinkMacSystemFont, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-dark);
  color: var(--text-main);
  direction: rtl;
  min-height: 100vh;
  line-height: 1.5;
}

/* ---------------- Login Screen ---------------- */
.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: radial-gradient(circle at 50% 20%, #172554 0%, var(--bg-dark) 70%);
}

.login-card {
  width: 100%;
  max-width: 440px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 36px 32px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.login-header {
  text-align: center;
  margin-bottom: 28px;
}

.logo-circle {
  width: 64px;
  height: 64px;
  margin: 0 auto 16px;
  border-radius: 20px;
  background: linear-gradient(135deg, #1E40AF, #3B82F6);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 16px rgba(59, 130, 246, 0.3);
}

.logo-emoji {
  font-size: 32px;
}

.login-header h2 {
  font-size: 20px;
  font-weight: 800;
  color: #FFFFFF;
}

.login-header p {
  font-size: 13px;
  color: var(--text-muted);
  margin-top: 4px;
}

.login-footer {
  text-align: center;
  margin-top: 24px;
  font-size: 11px;
  color: #64748B;
}

/* ---------------- Form Elements ---------------- */
.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  color: #CBD5E1;
  margin-bottom: 6px;
}

.form-group input,
.form-group select {
  width: 100%;
  height: 44px;
  padding: 0 14px;
  background-color: #0A0F1D;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  color: #FFFFFF;
  font-family: inherit;
  font-size: 14px;
  transition: all 0.2s;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.password-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.password-input-wrapper input {
  padding-left: 42px;
}

.btn-toggle-pwd {
  position: absolute;
  left: 10px;
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  padding: 4px;
  border-radius: 6px;
  opacity: 0.7;
  transition: opacity 0.2s;
  color: #CBD5E1;
}

.btn-toggle-pwd:hover {
  opacity: 1;
}

.form-row {
  display: flex;
  gap: 16px;
}

.flex-1 {
  flex: 1;
}

.hint {
  display: block;
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 4px;
}

.req {
  color: var(--rose);
}

/* ---------------- Buttons ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 42px;
  padding: 0 20px;
  border-radius: 12px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
  text-decoration: none;
}

.btn-block {
  width: 100%;
}

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

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

.btn-emerald {
  background-color: var(--emerald);
  color: #FFFFFF;
}

.btn-emerald:hover {
  background-color: var(--emerald-hover);
}

.btn-danger {
  background-color: rgba(239, 68, 68, 0.15);
  color: #F87171;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

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

.btn-warning {
  background-color: rgba(245, 158, 11, 0.15);
  color: #FBBF24;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.btn-warning:hover {
  background-color: var(--amber);
  color: #000;
}

.btn-outline {
  background-color: transparent;
  color: #CBD5E1;
  border: 1px solid var(--border-color);
}

.btn-outline:hover {
  background-color: var(--border-color);
  color: #FFFFFF;
}

.btn-sm {
  height: 32px;
  padding: 0 12px;
  font-size: 12px;
  border-radius: 8px;
}

.btn-icon {
  width: 32px;
  height: 32px;
  padding: 0;
  border-radius: 8px;
}

/* ---------------- Navbar ---------------- */
.navbar {
  height: 68px;
  background-color: var(--bg-card);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.badge-brand {
  background: linear-gradient(135deg, #2563EB, #1D4ED8);
  color: #FFFFFF;
  padding: 4px 12px;
  border-radius: 8px;
  font-weight: 800;
  font-size: 13px;
  letter-spacing: 0.5px;
}

.brand-title {
  font-size: 15px;
  font-weight: 700;
  color: #FFFFFF;
}

.status-indicator {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: #10B981;
  background-color: rgba(16, 185, 129, 0.1);
  padding: 4px 10px;
  border-radius: 20px;
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.pulse-dot {
  width: 8px;
  height: 8px;
  background-color: #10B981;
  border-radius: 50%;
  animation: pulse 1.5s infinite;
}

@keyframes pulse {
  0% { transform: scale(0.9); opacity: 0.7; }
  50% { transform: scale(1.3); opacity: 1; }
  100% { transform: scale(0.9); opacity: 0.7; }
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ---------------- Main Content ---------------- */
.main-content {
  max-width: 1360px;
  margin: 0 auto;
  padding: 28px 24px 60px;
}

/* ---------------- Stats Grid ---------------- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
  margin-bottom: 28px;
}

.stat-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 18px;
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
  transition: transform 0.2s, box-shadow 0.2s;
}

.stat-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
}

.stat-icon {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
}

.icon-blue { background-color: rgba(59, 130, 246, 0.15); }
.icon-green { background-color: rgba(16, 185, 129, 0.15); }
.icon-amber { background-color: rgba(245, 158, 11, 0.15); }
.icon-red { background-color: rgba(239, 68, 68, 0.15); }
.icon-purple { background-color: rgba(168, 85, 247, 0.15); }

.stat-info {
  display: flex;
  flex-col: column;
  flex-direction: column;
}

.stat-label {
  font-size: 12px;
  color: var(--text-muted);
  font-weight: 600;
}

.stat-value {
  font-size: 24px;
  font-weight: 900;
  color: #FFFFFF;
}

/* ---------------- Toolbar ---------------- */
.table-toolbar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.search-box {
  flex: 1;
  max-width: 440px;
}

.search-box input {
  width: 100%;
  height: 42px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 0 16px;
  color: #FFFFFF;
  font-family: inherit;
  font-size: 13px;
}

.search-box input:focus {
  outline: none;
  border-color: var(--primary);
}

.filter-tabs {
  display: flex;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  padding: 4px;
  border-radius: 12px;
  gap: 4px;
}

.filter-tab {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-family: inherit;
  font-size: 12px;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
}

.filter-tab.active {
  background-color: var(--primary);
  color: #FFFFFF;
}

/* ---------------- Table Card ---------------- */
.table-card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
}

.table-responsive {
  overflow-x: auto;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  text-align: right;
  font-size: 13px;
}

.data-table th {
  background-color: #0F172A;
  color: #94A3B8;
  font-weight: 700;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border-color);
  white-space: nowrap;
}

.data-table td {
  padding: 14px 18px;
  border-bottom: 1px solid rgba(31, 42, 68, 0.6);
  color: #E2E8F0;
  vertical-align: middle;
}

.data-table tr:hover {
  background-color: var(--bg-card-hover);
}

.key-code {
  font-family: monospace;
  font-weight: 700;
  font-size: 13px;
  color: #60A5FA;
  background-color: rgba(59, 130, 246, 0.1);
  padding: 4px 8px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.copy-icon-btn {
  cursor: pointer;
  background: transparent;
  border: none;
  color: #94A3B8;
  font-size: 14px;
}

.copy-icon-btn:hover {
  color: #FFFFFF;
}

.status-badge {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 800;
}

.status-badge.active {
  background-color: rgba(16, 185, 129, 0.15);
  color: #34D399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.status-badge.expired {
  background-color: rgba(245, 158, 11, 0.15);
  color: #FBBF24;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.status-badge.revoked {
  background-color: rgba(239, 68, 68, 0.15);
  color: #F87171;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

.device-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  padding: 4px 10px;
  border-radius: 8px;
  background-color: #0A0F1D;
  border: 1px solid var(--border-color);
  font-size: 12px;
  font-weight: 700;
  color: #CBD5E1;
}

.device-badge:hover {
  border-color: var(--primary);
  color: #FFFFFF;
}

.action-buttons {
  display: flex;
  align-items: center;
  gap: 6px;
}

.btn-whatsapp {
  background-color: #25D366;
  color: #FFFFFF;
}

.btn-whatsapp:hover {
  background-color: #1EBE5D;
}

/* ---------------- Modals ---------------- */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(5, 10, 20, 0.85);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  padding: 20px;
}

.modal-card {
  width: 100%;
  max-width: 620px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 28px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
  max-height: 90vh;
  overflow-y: auto;
}

.modal-sm {
  max-width: 440px;
}

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

.modal-header h3 {
  font-size: 17px;
  font-weight: 800;
  color: #FFFFFF;
}

.modal-close {
  background: transparent;
  border: none;
  font-size: 24px;
  color: var(--text-muted);
  cursor: pointer;
}

.modal-close:hover {
  color: #FFFFFF;
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 12px;
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px solid var(--border-color);
}

/* ---------------- Devices List ---------------- */
.devices-body {
  margin: 16px 0;
}

.device-card {
  background-color: #0A0F1D;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 14px 16px;
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.device-meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.device-id {
  font-family: monospace;
  font-weight: 700;
  color: #60A5FA;
  font-size: 13px;
}

.device-info {
  font-size: 11px;
  color: var(--text-muted);
}

/* ---------------- Alerts & Toast ---------------- */
.alert-error {
  background-color: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #FCA5A5;
  padding: 12px 14px;
  border-radius: 10px;
  font-size: 12px;
  font-weight: 700;
  margin-bottom: 16px;
}

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background-color: #1E293B;
  color: #FFFFFF;
  border: 1px solid var(--primary);
  padding: 12px 24px;
  border-radius: 14px;
  font-size: 13px;
  font-weight: 700;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
  z-index: 9999;
  opacity: 0;
  transition: all 0.3s ease-out;
  pointer-events: none;
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* ---------------- Responsive ---------------- */
@media (max-width: 768px) {
  .navbar {
    padding: 0 16px;
    height: auto;
    flex-direction: column;
    gap: 12px;
    padding-top: 14px;
    padding-bottom: 14px;
  }
  .form-row {
    flex-direction: column;
    gap: 0;
  }
  .table-toolbar {
    flex-direction: column;
    align-items: stretch;
  }
}