:root {
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --card-bg: rgba(30, 41, 59, 0.7);
  --border-color: rgba(255, 255, 255, 0.08);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --accent: #06b6d4;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-main);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* Glassmorphism Card */
.glass-card {
  background: var(--card-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-color);
  border-radius: 14px;
}

/* Scrollbars */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: rgba(15, 23, 42, 0.5);
}
::-webkit-scrollbar-thumb {
  background: #334155;
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: #475569;
}

/* Pulsing Status Dot */
.pulse-green {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #10b981;
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  animation: pulse-green-anim 2s infinite;
}

.pulse-red {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #ef4444;
  box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7);
  animation: pulse-red-anim 2s infinite;
}

@keyframes pulse-green-anim {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

@keyframes pulse-red-anim {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(239, 68, 68, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
}

/* Toast Alerts */
#toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  min-width: 280px;
  max-width: 420px;
  padding: 12px 18px;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.4);
  animation: slideInRight 0.3s ease-out;
  transition: all 0.3s ease;
}

.toast-success {
  background: #064e3b;
  color: #a7f3d0;
  border: 1px solid #059669;
}

.toast-error {
  background: #7f1d1d;
  color: #fecaca;
  border: 1px solid #dc2626;
}

.toast-info {
  background: #1e3a8a;
  color: #bfdbfe;
  border: 1px solid #2563eb;
}

@keyframes slideInRight {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* Modal Backdrop */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease-in-out;
  padding: 16px;
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-content {
  background: #1e293b;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  width: 100%;
  max-width: 580px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.6);
  transform: scale(0.96);
  transition: transform 0.2s ease;
}

.modal-overlay.active .modal-content {
  transform: scale(1);
}

/* Code Pre Blocks */
pre.code-block {
  background: #090d16;
  border: 1px solid #1e293b;
  border-radius: 8px;
  padding: 12px;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 13px;
  line-height: 1.5;
  color: #38bdf8;
  overflow-x: auto;
  user-select: all;
}

/* QR Code Container */
#qr-container {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 16px;
  background: #ffffff;
  border-radius: 12px;
  width: fit-content;
  margin: 0 auto;
}

/* ========================================================
   Light Theme System
   ======================================================== */
html.light, body.light {
  --bg-primary: #f8fafc;
  --bg-secondary: #f1f5f9;
  --bg-tertiary: #e2e8f0;
  --card-bg: #ffffff;
  --border-color: #e2e8f0;
  --text-main: #0f172a;
  --text-muted: #64748b;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --accent: #0891b2;
  --success: #059669;
  --danger: #dc2626;
  --warning: #d97706;
}

html.light body {
  background-color: #f8fafc !important;
  color: #0f172a !important;
}

html.light .glass-card,
html.light .modal-content {
  background: #ffffff !important;
  border: 1px solid #e2e8f0 !important;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05) !important;
}

html.light .bg-slate-950,
html.light .bg-slate-950\/70,
html.light .bg-slate-900,
html.light .bg-slate-900\/40,
html.light .bg-slate-900\/50,
html.light .bg-slate-900\/60,
html.light .bg-slate-900\/80,
html.light .bg-slate-800,
html.light .bg-slate-800\/40,
html.light .bg-slate-800\/60,
html.light .bg-slate-800\/80 {
  background-color: #f1f5f9 !important;
}

html.light .border-slate-800,
html.light .border-slate-800\/80,
html.light .border-slate-800\/60,
html.light .border-slate-700,
html.light .border-slate-700\/80 {
  border-color: #e2e8f0 !important;
}

html.light .text-white {
  color: #0f172a !important;
}

html.light .text-slate-100 {
  color: #0f172a !important;
}

html.light .text-slate-200 {
  color: #1e293b !important;
}

html.light .text-slate-300 {
  color: #334155 !important;
}

html.light .text-slate-400 {
  color: #64748b !important;
}

html.light .text-slate-500 {
  color: #64748b !important;
}

html.light pre.code-block,
html.light .code-box {
  background-color: #f8fafc !important;
  border: 1px solid #cbd5e1 !important;
  color: #0369a1 !important;
}

html.light input,
html.light textarea,
html.light select {
  background-color: #ffffff !important;
  color: #0f172a !important;
  border-color: #cbd5e1 !important;
}

html.light input::placeholder,
html.light textarea::placeholder {
  color: #94a3b8 !important;
}

html.light tr:hover {
  background-color: #f8fafc !important;
}

html.light thead tr {
  background-color: #f1f5f9 !important;
}

/* ========================================================
   Mobile UI & Ergonomics
   ======================================================== */
@media (max-width: 640px) {
  .modal-overlay {
    padding: 0 !important;
    align-items: flex-end !important;
  }
  .modal-content {
    border-bottom-left-radius: 0 !important;
    border-bottom-right-radius: 0 !important;
    border-top-left-radius: 20px !important;
    border-top-right-radius: 20px !important;
    max-height: 90vh !important;
    padding: 1.25rem 1rem !important;
    width: 100% !important;
  }
  button, input, select {
    min-height: 42px;
  }
}