:root {
  --bg-primary: #f8fafc;
  --bg-card: #ffffff;
  --bg-input: #f1f5f9;
  --bg-console: #0f172a;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --border-color: #e2e8f0;
  --accent: #7c3aed;
  --accent-hover: #6d28d9;
  --accent-focus: rgba(124, 58, 237, 0.2);
  --success-bg: #ecfdf5;
  --success-border: #10b981;
  --success-text: #065f46;
  --error-bg: #fef2f2;
  --error-border: #ef4444;
  --error-text: #991b1b;
  --shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
}

@media (prefers-color-scheme: dark) {
  :root {
	--bg-primary: #090d16;
	--bg-card: #111827;
	--bg-input: #1f2937;
	--bg-console: #030712;
	--text-primary: #f8fafc;
	--text-secondary: #cbd5e1;
	--text-muted: #64748b;
	--border-color: #1e293b;
	--accent: #8b5cf6;
	--accent-hover: #7c3aed;
	--accent-focus: rgba(139, 92, 246, 0.25);
	--success-bg: rgba(16, 185, 129, 0.1);
	--success-border: #059669;
	--success-text: #34d399;
	--error-bg: rgba(239, 68, 68, 0.1);
	--error-border: #dc2626;
	--error-text: #f87171;
	--shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.4);
  }
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 1.25rem;
  line-height: 1.5;
}

.container {
  width: 100%;
  max-width: 640px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem;
  box-shadow: var(--shadow);
}

/* Header Section */
.header {
  margin-bottom: 1.75rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
  background-color: var(--accent-focus);
  padding: 0.25rem 0.625rem;
  border-radius: 9999px;
  margin-bottom: 0.75rem;
}

h1 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  margin-bottom: 0.375rem;
}

.subtitle {
  font-size: 0.925rem;
  color: var(--text-secondary);
}

/* Input Group */
.form-group {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

@media (max-width: 480px) {
  .form-group {
	flex-direction: column;
  }
  .container {
	padding: 1.5rem;
  }
}

input[type="text"] {
  flex: 1;
  background-color: var(--bg-input);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  font-size: 1rem;
  padding: 0.75rem 1rem;
  border-radius: 10px;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  min-height: 46px;
}

input[type="text"]::placeholder {
  color: var(--text-muted);
}

input[type="text"]:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-focus);
}

button {
  background-color: var(--accent);
  color: #ffffff;
  border: none;
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.75rem 1.5rem;
  border-radius: 10px;
  cursor: pointer;
  transition: background-color 0.2s, transform 0.1s;
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  white-space: nowrap;
}

button:hover:not(:disabled) {
  background-color: var(--accent-hover);
}

button:active:not(:disabled) {
  transform: scale(0.98);
}

button:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

/* Quick Examples */
.examples {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.example-chip {
  background-color: var(--bg-input);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  padding: 0.25rem 0.6rem;
  border-radius: 6px;
  font-size: 0.78rem;
  font-weight: 500;
  min-height: auto;
  cursor: pointer;
}

.example-chip:hover {
  border-color: var(--accent);
  color: var(--text-primary);
  background-color: var(--bg-input);
}

/* Status Card */
.status-box {
  display: none;
  border-radius: 12px;
  padding: 1.125rem;
  margin-bottom: 1.5rem;
  border: 1px solid transparent;
  animation: fadeIn 0.25s ease-out;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

.status-box.success {
  display: block;
  background-color: var(--success-bg);
  border-color: var(--success-border);
  color: var(--success-text);
}

.status-box.error {
  display: block;
  background-color: var(--error-bg);
  border-color: var(--error-border);
  color: var(--error-text);
}

.status-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
}

.pubkey-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  background-color: rgba(0, 0, 0, 0.06);
  padding: 0.5rem 0.75rem;
  border-radius: 8px;
  margin-top: 0.5rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.82rem;
  word-break: break-all;
}

@media (prefers-color-scheme: dark) {
  .pubkey-row {
	background-color: rgba(0, 0, 0, 0.3);
  }
}

.copy-btn {
  background-color: transparent;
  color: inherit;
  border: 1px solid currentColor;
  padding: 0.25rem 0.5rem;
  font-size: 0.75rem;
  min-height: auto;
  border-radius: 6px;
  opacity: 0.85;
}

.copy-btn:hover {
  opacity: 1;
  background-color: rgba(128, 128, 128, 0.15);
}

.relays-list {
  margin-top: 0.75rem;
  font-size: 0.82rem;
}

.relays-list ul {
  list-style: none;
  margin-top: 0.25rem;
  padding-left: 0.5rem;
  border-left: 2px solid currentColor;
  opacity: 0.9;
}

/* Diagnostic Console */
.console-wrapper {
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.console-header {
  background-color: var(--bg-input);
  padding: 0.5rem 0.875rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.clear-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 0.75rem;
  padding: 0.2rem 0.4rem;
  min-height: auto;
}

.clear-btn:hover {
  color: var(--text-primary);
  background: none;
}

.console-body {
  background-color: var(--bg-console);
  color: #e2e8f0;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.8rem;
  padding: 0.875rem;
  max-height: 260px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.log-entry {
  word-break: break-word;
  line-height: 1.4;
}

.log-time {
  color: #64748b;
  margin-right: 0.4rem;
  user-select: none;
}

.log-info { color: #cbd5e1; }
.log-success { color: #34d399; font-weight: 600; }
.log-warn { color: #fbbf24; }
.log-error { color: #f87171; }

/* Spinner */
.spinner {
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}