:root {
  --font-ui: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;

  --site-max-width: 1100px;

  --space-1: 8px;
  --space-2: 12px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 32px;
  --space-6: 48px;
  --space-7: 72px;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;

  --shadow-soft: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-medium: 0 10px 24px rgba(0,0,0,0.12);

  --color-bg: #ffffff;
  --color-surface: #ffffff;
  --color-surface-alt: #f5f5f5;
  --color-text: #111111;
  --color-text-muted: #555555;
  --color-border: rgba(0,0,0,0.08);
  --color-accent: #0f7f7a;
  --color-accent-contrast: #ffffff;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-ui);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
}

.site-shell {
  min-height: 100vh;
}

.container {
  width: min(100% - 32px, var(--site-max-width));
  margin-inline: auto;
}

.site-header {
  padding: var(--space-4) 0;
}

.site-brand {
  font-size: 1.25rem;
  font-weight: 600;
}

.site-nav {
  display: flex;
  gap: var(--space-4);
  flex-wrap: wrap;
}

.section {
  padding: var(--space-4) 0;
}

.section-hero {
  padding: var(--space-6) 0 var(--space-5);
}

.section-alt {
  background: var(--color-surface-alt);
}

.title-main {
  margin: 0 0 var(--space-3);
  font-size: clamp(2rem, 5vw, 3.5rem);
  line-height: 1.1;
  font-weight: 700;
}

.title-page {
  margin: 0 0 var(--space-3);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  line-height: 1.15;
  font-weight: 700;
}

.title-section {
  margin: 0 0 var(--space-3);
  font-size: 1rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
}

.title-card {
  margin: 0 0 var(--space-2);
  font-size: 1.1rem;
  line-height: 1.2;
  font-weight: 600;
}

.text-body {
  margin: 0;
  color: var(--color-text);
}

.text-muted {
  margin: 0;
  color: var(--color-text-muted);
}

.text-small {
  font-size: 0.9rem;
}

.grid {
  display: grid;
  gap: var(--space-4);
}

.grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  box-shadow: var(--shadow-soft);
}

.card-feature {
  padding: var(--space-5);
  box-shadow: var(--shadow-medium);
  border-top: 2px solid var(--color-border);
}

.card-primary {
  border-top: 3px solid var(--wc-mustard);
}

.card-secondary {
  background: var(--color-surface);
}

.card-soft {
  background: var(--color-surface-alt);
  box-shadow: none;
}

.card-plain {
  background: transparent;
  border: none;
  box-shadow: none;
  padding-inline: 0;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  min-height: 44px;
  padding: 0 18px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button-primary {
  background: var(--color-accent);
  color: var(--color-accent-contrast);
}

.button-secondary {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

.site-footer {
  padding: var(--space-5) 0;
  border-top: 1px solid var(--color-border);
}

.stack > * + * {
  margin-top: var(--space-3);
}

.stack-tight > * + * {
  margin-top: var(--space-2);
}

.stack-loose > * + * {
  margin-top: var(--space-5);
}

.align-center {
  text-align: center;
}

.align-left {
  text-align: left;
}

@media (max-width: 900px) {
  .grid-4 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .grid-3 {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .section-hero {
    padding: var(--space-6) 0;
  }
}