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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    Oxygen, Ubuntu, sans-serif;
  background: var(--bg-page);
  color: var(--text-primary);
  min-height: 100vh;
  transition: background 0.25s, color 0.25s;
}

/* === Header === */
header {
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-default);
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo { width: 32px; height: 32px; }

header h1 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--accent-text);
}

.subtitle {
  font-size: 0.8rem;
  color: var(--text-faint);
  display: none;
}

@media (min-width: 640px) {
  .subtitle { display: inline; }
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* === Layout === */
main {
  max-width: 960px;
  margin: 0 auto;
  padding: 24px 16px;
}

.view { display: none; }
.view.active { display: block; }

/* === Buttons === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, opacity 0.15s;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

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

.btn-primary:hover:not(:disabled) {
  background: var(--accent-hover);
}

.btn-secondary {
  background: var(--btn-secondary-bg);
  color: var(--btn-secondary-text);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--btn-secondary-hover);
}

.btn-danger { background: var(--red-500); color: white; }
.btn-danger:hover:not(:disabled) { background: var(--red-600); }

.btn-icon {
  background: transparent;
  color: var(--text-muted);
  padding: 8px;
  font-size: 1.2rem;
  border-radius: 50%;
}

.btn-icon:hover { background: var(--bg-surface-hover); }
.btn-sm { padding: 6px 12px; font-size: 0.8rem; }

.btn-text {
  background: none;
  color: var(--accent-text);
  padding: 6px 10px;
}

.btn-text:hover { background: var(--accent-subtle); }

/* === User info === */
.user-info {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.user-npub {
  max-width: 120px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-family: monospace;
  font-size: 0.78rem;
}

/* === Toolbar === */
.hidden { display: none !important; }

.toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.toolbar h2 {
  font-size: 1.3rem;
  color: var(--text-primary);
}

.toolbar-actions {
  display: flex;
  gap: 8px;
}

/* === Theme toggle === */
.theme-toggle {
  background: transparent;
  border: 1px solid var(--border-default);
  border-radius: 50%;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.05rem;
  color: var(--text-muted);
  transition: background 0.15s, border-color 0.15s;
  flex-shrink: 0;
}

.theme-toggle:hover {
  background: var(--bg-surface-hover);
  border-color: var(--text-faint);
}