:root {
  /* Font Families */
  --font-ibm-plex-sans: "IBM Plex Sans", system-ui, sans-serif;
  --font-ibm-plex-mono: "IBM Plex Mono", monospace;

  /* Colors */
  --text-color-primary: #000000;
  --text-color-secondary: #6b7280;
  --background-red: #ffe6e6;
  --background-green: #e6ffe6;

  /* Font Sizes */
  --font-size-sm: 0.875rem;
  --font-size-md: 1rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.5rem;

  /* Font Weights */
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;

  --purple-light: oklch(0.861 0.032 299.599);
  --purple-cta: oklch(0.512 0.116 295.755);

  /* Transitions */
  --transition-duration: 0.3s;
  --transition-fn: cubic-bezier(0.4, 0, 0.2, 1);
  --transition: all var(--transition-duration) var(--transition-fn);
}

body {
  margin: 0;
  padding: 0;
  color: var(--text-color-primary);
  background: var(--purple-light);
}

* {
  box-sizing: border-box;
}

/* Reset button styles to inherit font */
button {
  font-family: inherit;
  -webkit-appearance: none;
  appearance: none;
  color: inherit;
  background: transparent;
}

h1,
h2,
h3,
h4,
h5,
h6,
p {
  margin-top: 0;
}

/* Font Families */
.font-mono {
  font-family: var(--font-ibm-plex-mono);
}

.font-sans {
  font-family: var(--font-ibm-plex-sans);
}

/* Text Colors */
.text-primary {
  color: var(--text-color-primary);
}

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

/* Font Sizes */
.text-sm {
  font-size: var(--font-size-sm);
}

.text-md {
  font-size: var(--font-size-md);
}

.text-lg {
  font-size: var(--font-size-lg);
}

/* Font Weights */
.font-regular {
  font-weight: var(--font-weight-regular);
}

.font-medium {
  font-weight: var(--font-weight-medium);
}

.font-semibold {
  font-weight: var(--font-weight-semibold);
}

/* Backgrounds */
.bg-red {
  background-color: var(--background-red);
}

.bg-green {
  background-color: var(--background-green);
}

/* Margins */
.mb-0 {
  margin-bottom: 0;
}

.mb-1 {
  margin-bottom: 0.25rem;
}

.mb-2 {
  margin-bottom: 0.5rem;
}

.mb-3 {
  margin-bottom: 0.75rem;
}

.mb-4 {
  margin-bottom: 1rem;
}

.mt-1 {
  margin-top: 0.25rem;
}

.mt-2 {
  margin-top: 0.5rem;
}

.mt-3 {
  margin-top: 0.75rem;
}

.mt-4 {
  margin-top: 1rem;
}

.ml-1 {
  margin-left: 0.25rem;
}

.ml-2 {
  margin-left: 0.5rem;
}

/* Fixed Navigation */
.fixed-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(8px);
  padding: 12px;
  display: flex;
  gap: 12px;
  max-width: 600px;
  margin: 0 auto;
  width: 100%;
}

.nav-button {
  flex: 1;
  min-width: 0;
}

/* Content Container */
.content-container {
  padding-bottom: 70px; /* Space for fixed nav */
}

.flex {
  display: flex;
}

.flex-column {
  display: flex;
  flex-direction: column;
}

.flex-center {
  align-items: center;
}

.gap-1 {
  gap: 0.25rem;
}

.gap-2 {
  gap: 0.5rem;
}

.gap-3 {
  gap: 0.75rem;
}

.gap-4 {
  gap: 1rem;
}

/* Animations */
.animated {
  transition: var(--transition);
}

/* User Chip */
.user-chip {
  display: flex;
  align-items: center;
  gap: 0.375rem;
  background-color: transparent;
  cursor: pointer;
  border: none;
  font-size: 0.875rem;
  color: inherit;
  -webkit-appearance: none;
  appearance: none;
  padding: 0;
}