:root {
  /* Product page palette */
  --color-primary: #2563eb;
  --color-primary-hover: #1d4ed8;
  --color-secondary: #049fd9;
  --color-secondary-hover: #0284b8;

  /* Text */
  --text-main: #0f172a;
  --text-heading: #0d274d;
  --text-muted: #64748b;
  --text-soft: #4b5563;
  --text-dark: #0f172a;
  --text-black: #000000;
  --text-inverse: #ffffff;

  /* Surfaces */
  --bg-page: #f9fafb;
  --bg-surface: #ffffff;
  --bg-muted: #f3f4f6;
  --bg-dark: #000000;
  --bg-bone: #eeeeee;
  --color-dark-base: #031813;

  /* Borders */
  --border-color: #e5e7eb;
  --border-strong: #cbd5e1;

  /* Layout grid */
  --grid-margin: 1rem;
  --grid-gutter: 1rem;
  --content-max-width: 76rem;
  --header-max-width: 80rem;

  /* Radius */
  --radius-sm: 0.5rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
}

@media (min-width: 768px) {
  :root {
    --grid-margin: 1.75rem;
    --grid-gutter: 1.75rem;
  }
}

@media (min-width: 1024px) {
  :root {
    --grid-margin: 2.5rem;
    --grid-gutter: 2.5rem;
  }
}

@media (min-width: 1280px) {
  :root {
    --grid-margin: 4.5rem;
    --grid-gutter: 3rem;
  }
}

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

html {
  background: var(--bg-page);
  scroll-behavior: smooth;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  min-width: 320px;
  color: var(--text-main);
  background: var(--bg-page);
  font-family: Inter, Roboto, "Segoe UI", system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.5;
}

img,
picture,
svg,
video {
  display: block;
  max-width: 100%;
}

button,
input,
textarea,
select {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

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

p,
h1,
h2,
h3,
h4 {
  margin-block: 0;
}

ul,
ol {
  margin-block: 0;
}

:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--color-primary), white 20%);
  outline-offset: 3px;
}

.seoTitle,
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  white-space: nowrap;
  border: 0;
  clip: rect(0, 0, 0, 0);
}

.page-shell {
  width: min(100% - (var(--grid-margin) * 2), var(--content-max-width));
  margin-inline: auto;
}

.header-shell {
  width: min(100% - (var(--grid-margin) * 2), var(--header-max-width));
  margin-inline: auto;
}

.section {
  padding-block: clamp(2rem, 5vw, 4rem);
}

.section-title {
  color: var(--text-black);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 700;
  line-height: 1.15;
}

.section-description {
  color: var(--text-soft);
  font-size: clamp(0.95rem, 1.5vw, 1.0625rem);
}

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

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

.font-semibold {
  font-weight: 600;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 2.75rem;
  padding: 0.75rem 1.125rem;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
}

.btn-primary {
  color: var(--text-inverse);
  background: var(--color-primary);
}

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

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

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

.btn-outline {
  color: var(--color-primary);
  background: var(--bg-surface);
  border-color: var(--border-color);
}

.btn-outline:hover {
  border-color: var(--color-primary);
  background: #eff6ff;
}

.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
}

.responsive-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--grid-gutter);
}

@media (min-width: 640px) {
  .responsive-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .responsive-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}