/* Custom properties for a modern, clean light design system */
:root {
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  
  /* Color palette - sleek warm slate & forest green */
  --bg-primary: #faf9f6; /* very soft warm cream-white */
  --bg-card: #ffffff;
  --text-primary: #1c1917; /* very dark warm slate */
  --text-muted: #57534e;
  --color-brand: #15803d; /* Wombat Green */
  --color-accent: #0f766e; /* Vorla Teal */
  --color-border: #e7e5e4;
  --color-focus: #2563eb;
  
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1.25rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3.5rem;
  
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.04), 0 2px 4px -2px rgba(0, 0, 0, 0.04);
  
  --container-width: 680px;
}

/* Reset and basic setup */
*, *::before, *::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding-block: var(--spacing-xl);
  padding-inline: var(--spacing-md);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Layout Container */
.container {
  max-inline-size: var(--container-width);
  margin-inline: auto;
}

/* Typography */
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.2;
  margin-block-start: 0;
  color: var(--text-primary);
}

h1 {
  font-size: clamp(2rem, 5vw, 2.5rem);
  letter-spacing: -0.025em;
  margin-block-end: var(--spacing-md);
}

h2 {
  font-size: clamp(1.35rem, 4vw, 1.6rem);
  letter-spacing: -0.02em;
  margin-block-start: var(--spacing-lg);
  margin-block-end: var(--spacing-sm);
  border-block-end: 1px solid var(--color-border);
  padding-block-end: var(--spacing-xs);
}

h3 {
  font-size: 1.15rem;
  margin-block-start: var(--spacing-md);
  margin-block-end: var(--spacing-xs);
}

p {
  margin-block-start: 0;
  margin-block-end: var(--spacing-md);
  color: var(--text-muted);
}

/* Brand Identity */
.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-brand);
  text-decoration: none;
  margin-block-end: var(--spacing-lg);
}

.brand-dot {
  inline-size: 10px;
  block-size: 10px;
  background-color: var(--color-brand);
  border-radius: 50%;
}

/* Hero Section */
.hero {
  margin-block-end: var(--spacing-xl);
}

.hero p {
  font-size: 1.2rem;
  color: var(--text-primary);
  line-height: 1.5;
}

/* Cards & App Section */
.app-card {
  background-color: var(--bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-md);
  margin-block-end: var(--spacing-xl);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.app-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
}

.app-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-accent);
  background-color: rgba(15, 118, 110, 0.1);
  padding-block: 0.25rem;
  padding-inline: 0.5rem;
  border-radius: var(--radius-sm);
  margin-block-end: var(--spacing-sm);
}

.app-title {
  font-size: 2rem;
  margin-block-end: var(--spacing-xs);
  color: var(--text-primary);
}

.app-description {
  font-size: 1.05rem;
  margin-block-end: var(--spacing-md);
}

/* Lists and details in privacy policy */
.policy-list {
  padding-inline-start: 1.25rem;
  margin-block-end: var(--spacing-md);
  color: var(--text-muted);
}

.policy-list li {
  margin-block-end: 0.5rem;
}

/* Links & Buttons */
.link-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm) var(--spacing-md);
}

a.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding-block: 0.6rem;
  padding-inline: 1.25rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: background-color 0.15s ease, color 0.15s ease;
}

a.btn-primary {
  background-color: var(--color-accent);
  color: #ffffff;
}

a.btn-primary:hover {
  background-color: #0d5e58;
}

a.btn-secondary {
  background-color: transparent;
  color: var(--color-accent);
  border: 1px solid var(--color-border);
}

a.btn-secondary:hover {
  background-color: rgba(15, 118, 110, 0.05);
  border-color: var(--color-accent);
}

/* Simple Footer */
footer {
  margin-block-start: var(--spacing-xl);
  padding-block-start: var(--spacing-md);
  border-block-start: 1px solid var(--color-border);
  font-size: 0.875rem;
  color: var(--text-muted);
}

footer a {
  color: var(--text-muted);
  text-decoration: underline;
  text-underline-offset: 2px;
}

footer a:hover {
  color: var(--text-primary);
}

.nav-back {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 0.95rem;
  text-decoration: none;
  color: var(--text-muted);
  margin-block-end: var(--spacing-md);
  transition: color 0.15s ease;
}

.nav-back:hover {
  color: var(--text-primary);
}

.nav-back-arrow {
  font-size: 1.1rem;
  line-height: 1;
}

/* Focus outline for accessibility */
a:focus-visible {
  outline: 2px solid var(--color-focus);
  outline-offset: 4px;
}