:root {
  /* Light Theme - Slate/Indigo */
  --bg-color: #f1f5f9;
  /* Slate 100 */
  --card-bg: #ffffff;
  --primary: #4f46e5;
  /* Indigo 600 */
  --primary-hover: #4338ca;
  /* Indigo 700 */
  --primary-light: #e0e7ff;
  /* Indigo 100 */
  --accent: #10b981;
  /* Emerald 500 */
  --text-main: #334155;
  /* Slate 700 */
  --text-muted: #64748b;
  /* Slate 500 */
  --danger: #ef4444;
  /* Red 500 */
  --border: #e2e8f0;
  /* Slate 200 */
  --input-bg: #f8fafc;
  /* Slate 50 */
  --input-focus-ring: rgba(79, 70, 229, 0.2);
  --glass-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.025);
  --radius: 16px;
}

[data-theme="dark"] {
  /* Dark Theme - Slate/Indigo */
  --bg-color: #020617;
  /* Slate 950 */
  --card-bg: #1e293b;
  /* Slate 800 */
  --primary: #6366f1;
  /* Indigo 500 */
  --primary-hover: #818cf8;
  /* Indigo 400 */
  --primary-light: rgba(99, 102, 241, 0.15);
  --accent: #34d399;
  /* Emerald 400 */
  --text-main: #f1f5f9;
  /* Slate 50 */
  --text-muted: #94a3b8;
  /* Slate 400 */
  --danger: #f87171;
  /* Red 400 */
  --border: #334155;
  /* Slate 700 */
  --input-bg: #0f172a;
  /* Slate 900 */
  --input-focus-ring: rgba(99, 102, 241, 0.25);
  --glass-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.5), 0 4px 6px -2px rgba(0, 0, 0, 0.3);
}

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

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* -- Utilities -- */
.hidden {
  display: none !important;
}

/* -- Status Bar -- */
.status-bar {
  position: fixed;
  top: 24px;
  left: 50%;
  transform: translateX(-50%);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--card-bg);
  border: 1px solid var(--border);
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
  color: var(--text-muted);
  z-index: 50;
  transition: all 0.3s ease;
}

.dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--text-muted);
}

.dot.online {
  background-color: var(--danger);
  box-shadow: 0 0 0 2px rgba(239, 68, 68, 0.2);
}

.dot.offline {
  background-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(16, 185, 129, 0.2);
}


/* -- Theme Toggle -- */
.theme-toggle {
  position: fixed;
  top: 24px;
  right: 24px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--card-bg);
  border: 1px solid var(--border);
  color: var(--text-main);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
  transition: all 0.2s ease;
  z-index: 50;
}

.theme-toggle:hover {
  transform: scale(1.05);
  border-color: var(--primary);
  color: var(--primary);
}


/* -- Main Container -- */
.container {
  width: 100%;
  max-width: 520px;
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: var(--glass-shadow);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

/* Header */
.header-section {
  text-align: center;
  margin-bottom: 32px;
}

h1 {
  font-weight: 700;
  font-size: 1.8rem;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.subtitle {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* -- Tabs -- */
.tabs {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  background: var(--input-bg);
  padding: 4px;
  border-radius: 12px;
  margin-bottom: 32px;
  border: 1px solid var(--border);
}

.tab {
  padding: 8px;
  text-align: center;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: 8px;
  transition: all 0.2s ease;
  user-select: none;
}

.tab:hover {
  color: var(--text-main);
}

.tab.active {
  background: var(--card-bg);
  color: var(--primary);
  font-weight: 600;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

/* -- Inputs -- */
.input-group {
  margin-bottom: 20px;
}

label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-main);
  margin-bottom: 6px;
}

input {
  width: 100%;
  padding: 12px 16px;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 0.95rem;
  color: var(--text-main);
  transition: all 0.2s ease;
  font-family: inherit;
}

input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--input-focus-ring);
}

input::placeholder {
  color: var(--text-muted);
  opacity: 0.5;
}

/* -- Button -- */
.btn {
  width: 100%;
  padding: 14px;
  background: var(--primary);
  color: white;
  font-family: inherit;
  font-weight: 600;
  font-size: 1rem;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 4px 6px -1px rgba(79, 70, 229, 0.2);
}

.btn:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

/* -- Sections -- */
.section {
  display: none;
  animation: fadeIn 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.section.active {
  display: block;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(4px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* -- Result Card -- */
.result-card {
  margin-top: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--border);
  display: none;
  animation: slideUp 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.result-row {
  margin-bottom: 20px;
}

.result-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.result-label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 600;
  color: var(--text-muted);
}

.toggle-btn {
  background: none;
  border: none;
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
}

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

.value-display {
  background: var(--input-bg);
  padding: 12px;
  border-radius: 8px;
  font-family: 'SF Mono', 'Roboto Mono', monospace;
  font-size: 0.9rem;
  color: var(--text-main);
  word-break: break-all;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.2s;
  position: relative;
}

.value-display:hover {
  background: var(--card-bg);
  border-color: var(--border);
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.02);
}

/* Secrets & Blur */
.blur-text {
  filter: blur(6px);
  transition: filter 0.3s ease;
  opacity: 0.6;
}

.blur-text.revealed {
  filter: blur(0);
  opacity: 1;
}

/* Copy Hint */
.copy-hint {
  position: absolute;
  top: 50%;
  right: 12px;
  transform: translateY(-50%);
  font-size: 0.7rem;
  background: var(--text-main);
  color: var(--bg-color);
  padding: 4px 8px;
  border-radius: 4px;
  opacity: 0;
  pointer-events: none;
  transition: all 0.2s;
  font-family: 'Inter', sans-serif;
}

.value-display:hover .copy-hint {
  opacity: 1;
  transform: translateY(-50%) translateX(-4px);
}

/* QR Code */
.qr-container {
  display: flex;
  justify-content: center;
  margin: 24px 0;
  padding: 16px;
  background: white;
  border-radius: 12px;
  border: 1px solid var(--border);
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
}

/* Explorer Link */
.explorer-link {
  text-align: center;
  margin-top: 16px;
  font-size: 0.9rem;
  display: none;
}

.explorer-link a {
  color: var(--text-muted);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color 0.2s;
}

.explorer-link a:hover {
  color: var(--primary);
}

/* Bulk List */
.bulk-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-height: 300px;
  /* Reduced specific height */
  overflow-y: auto;
  margin-top: 16px;
  padding-right: 4px;
}

.bulk-item {
  display: flex;
  gap: 12px;
  padding: 12px;
  background: var(--input-bg);
  border-radius: 8px;
  font-size: 0.85rem;
  border: 1px solid var(--border);
}

.bulk-data {
  display: flex;
  flex-direction: column;
  gap: 4px;
  font-family: monospace;
  flex: 1;
  overflow: hidden;
}

/* Security Note */
.security-note {
  margin-top: 32px;
  padding: 16px;
  background: rgba(239, 68, 68, 0.05);
  /* Very light red */
  border: 1px solid rgba(239, 68, 68, 0.15);
  border-radius: 12px;
  font-size: 0.85rem;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.5;
}

.security-note strong {
  color: var(--danger);
}

/* Toast */
.toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--text-main);
  color: var(--bg-color);
  padding: 10px 20px;
  border-radius: 99px;
  font-size: 0.9rem;
  font-weight: 500;
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  z-index: 100;
}

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

.toast.loading-toast {
  background: var(--primary);
  color: white;
}

/* Print */
@media print {
  body {
    background: white;
    padding: 0;
    display: block;
  }

  .status-bar,
  .theme-toggle,
  .tabs,
  .btn,
  .print-actions,
  .toast {
    display: none !important;
  }

  .container {
    box-shadow: none;
    border: none;
    max-width: 100%;
    padding: 0;
  }

  .result-card {
    display: block !important;
    border: none;
    margin: 0;
    padding: 0;
    animation: none;
  }

  .value-display {
    border: 1px solid #ccc;
    background: none;
    color: black;
  }

  .blur-text {
    filter: none !important;
    opacity: 1 !important;
  }

  .qr-container {
    border: none;
  }
}