/* RBiz shared design foundation. Page-specific composition stays in the main stylesheet. */
:root {
  color-scheme: light;

  /* Brand roles */
  --rbiz-brand-500: oklch(59.3813% 0.230529 26.8842); /* Logo red: #e81c24 */
  --rbiz-brand-700: oklch(53.2386% 0.207738 26.864); /* Accessible red action */
  --rbiz-brand-800: oklch(46.4284% 0.18063 26.4902);
  --rbiz-red: var(--rbiz-brand-700);
  --rbiz-red-dark: var(--rbiz-brand-800);
  --rbiz-orange: oklch(75.8257% 0.155734 63.6744); /* Logo orange: #f49830 */
  --rbiz-gold: oklch(78% 0.17 58);
  --rbiz-green: oklch(62% 0.14 145);
  --rbiz-green-ink: oklch(50% 0.13 145);
  --rbiz-danger: oklch(48% 0.18 25);

  /* Neutral and semantic roles */
  --rbiz-ink: oklch(20% 0 0);
  --rbiz-ink-2: oklch(29% 0 0);
  --rbiz-text: oklch(29% 0 0);
  --rbiz-muted: oklch(47% 0 0);
  --rbiz-on-ink-muted: oklch(78% 0 0);
  --rbiz-line: oklch(90% 0 0);
  --rbiz-field: oklch(64% 0 0);
  --rbiz-soft: oklch(98% 0 0);
  --rbiz-surface: oklch(100% 0 0);
  --rbiz-focus: var(--rbiz-brand-800);
  --rbiz-shadow: 0 8px 16px -12px oklch(20% 0 0 / 0.16);

  /* Type roles */
  --font-sans: "Poppins", Arial, sans-serif;
  --type-display: clamp(2.125rem, 3.9vw, 3.5rem);
  --type-h1: clamp(2rem, 3.4vw, 3rem);
  --type-h2: clamp(1.75rem, 2.5vw, 2.25rem);
  --type-h3: clamp(1.3125rem, 1.7vw, 1.5rem);
  --type-body: 1.0625rem;
  --type-lead: clamp(1.125rem, 1.35vw, 1.25rem);
  --type-small: 0.9375rem;
  --type-label: 0.9375rem;
  --type-button: 1rem;

  /* Spacing, shape, and layout */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 4.5rem;
  --space-10: 5rem;
  --container-copy: 73.75rem;
  --container-wide: 80rem;
  --page-gutter: 1.25rem;
  --radius-control: 0.375rem;
  --radius-media: 0.5rem;
  --radius-section: 0;
  --shadow-raised: var(--rbiz-shadow);
  --focus-ring-width: 2px;
  --focus-ring-offset: 2px;
  --motion-fast: 140ms;

  /* Content-driven breakpoint reference values; use these in media queries. */
  --bp-tablet: 48rem;
  --bp-navigation: 75rem;
  --bp-wide: 80rem;
}

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

html {
  scroll-behavior: auto;
  scroll-padding-block-start: 1rem;
  text-size-adjust: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  color: var(--rbiz-text);
  background: var(--rbiz-surface);
  font-family: var(--font-sans);
  font-size: var(--type-body);
  font-weight: 400;
  line-height: 1.65;
  font-kerning: normal;
  overflow-wrap: break-word;
}

::selection {
  color: var(--rbiz-surface);
  background: var(--rbiz-brand-800);
}

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

img {
  height: auto;
}

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

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

:focus-visible {
  outline: var(--focus-ring-width) solid var(--rbiz-focus);
  outline-offset: var(--focus-ring-offset);
}

h1,
h2,
h3,
h4 {
  color: var(--rbiz-ink);
  font-family: var(--font-sans);
  font-weight: 600;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

h1 {
  font-size: var(--type-h1);
  line-height: 1.18;
}

h2 {
  font-size: var(--type-h2);
  line-height: 1.25;
}

h3 {
  font-size: var(--type-h3);
  line-height: 1.3;
}

p,
li,
dd {
  text-wrap: pretty;
}

small,
.rbiz-text-small {
  font-size: var(--type-small);
  line-height: 1.5;
}

.rbiz-label {
  color: var(--rbiz-muted);
  font-size: var(--type-label);
  font-weight: 500;
  line-height: 1.4;
}

.rbiz-display {
  max-width: 20ch;
  margin-block: 0;
  color: var(--rbiz-ink);
  font-size: var(--type-display);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.rbiz-container,
.rbiz-container-wide {
  width: min(var(--container-copy), calc(100% - 2 * var(--page-gutter)));
  margin-inline: auto;
}

.rbiz-container-wide {
  max-width: var(--container-wide);
}

.rbiz-content,
.rbiz-prose {
  max-width: 68ch;
  color: var(--rbiz-text);
  font-size: var(--type-body);
  line-height: 1.7;
}

.rbiz-content h2,
.rbiz-prose h2 {
  margin-block: 2rem 0.75rem;
  font-size: var(--type-h2);
  line-height: 1.25;
}

.rbiz-content h3,
.rbiz-prose h3 {
  margin-block: 1.5rem 0.5rem;
  font-size: var(--type-h3);
  line-height: 1.3;
}

.rbiz-content a,
.rbiz-prose a,
.rbiz-link {
  color: var(--rbiz-brand-700);
  font-weight: 500;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

.rbiz-content a:hover,
.rbiz-prose a:hover,
.rbiz-link:hover {
  color: var(--rbiz-brand-800);
  text-decoration-thickness: 2px;
}

.rbiz-section {
  padding-block: clamp(2.5rem, 5vw, 4.5rem);
}

.rbiz-section.compact {
  padding-block: clamp(1.5rem, 3vw, 2rem);
}

.rbiz-section.tight {
  padding-block: clamp(1.5rem, 3.5vw, 2.5rem);
}

.rbiz-section.alt {
  background: var(--rbiz-soft);
}

.rbiz-section-head {
  gap: clamp(1rem, 2.5vw, 2rem);
  margin-block-end: clamp(1.5rem, 3vw, 2rem);
}

.rbiz-section h2,
.rbiz-cta-section h2 {
  font-size: var(--type-h2);
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.rbiz-hero h1 {
  max-width: 20ch;
  font-size: var(--type-display);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.rbiz-small-label {
  color: var(--rbiz-muted);
  font-size: var(--type-label);
  font-weight: 500;
}

.rbiz-cta,
.rbiz-link-cta {
  min-height: 3rem;
  border-radius: var(--radius-control);
  font-size: var(--type-button);
  font-weight: 600;
  transition: color var(--motion-fast) ease, background-color var(--motion-fast) ease, border-color var(--motion-fast) ease;
}

.rbiz-cta::after {
  display: none;
}

.rbiz-cta:hover,
.rbiz-link-cta:hover {
  transform: none;
}

.rbiz-lede {
  font-size: var(--type-lead);
  line-height: 1.55;
}

/* Small composable layout primitives for future page work. */
.rbiz-stack > * {
  margin-block: 0;
}

.rbiz-stack > * + * {
  margin-block-start: var(--stack-space, var(--space-4));
}

.rbiz-cluster {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--cluster-space, var(--space-3));
}

.rbiz-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--grid-gap, var(--space-5));
}

.rbiz-grid--two,
.rbiz-grid--three {
  grid-template-columns: minmax(0, 1fr);
}

.rbiz-flow > * + * {
  margin-block-start: var(--flow-space, var(--space-5));
}

.rbiz-measure {
  max-width: 68ch;
}

/* Reusable action variants use explicit names; existing site CTAs keep their markup. */
.rbiz-button {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0.75rem 1.125rem;
  border: 1px solid transparent;
  border-radius: var(--radius-control);
  font-size: var(--type-button);
  font-weight: 600;
  line-height: 1.25;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: color var(--motion-fast) ease, background-color var(--motion-fast) ease, border-color var(--motion-fast) ease;
}

.rbiz-button:hover {
  text-decoration: none;
}

.rbiz-button--primary {
  color: var(--rbiz-surface);
  background: var(--rbiz-brand-700);
}

.rbiz-button--primary:hover {
  color: var(--rbiz-surface);
  background: var(--rbiz-brand-800);
}

.rbiz-button--secondary {
  border-color: var(--rbiz-field);
  color: var(--rbiz-ink);
  background: var(--rbiz-surface);
}

.rbiz-button--secondary:hover {
  border-color: var(--rbiz-ink);
  background: var(--rbiz-soft);
}

.rbiz-button--text {
  min-height: 3rem;
  padding-inline: 0.25rem;
  color: var(--rbiz-brand-700);
  background: transparent;
}

.rbiz-button--text:hover {
  color: var(--rbiz-brand-800);
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.rbiz-button:disabled,
.rbiz-button[aria-disabled="true"] {
  cursor: not-allowed;
  opacity: 0.6;
}

/* Form controls share readable labels, visible boundaries, and clear focus. */
.rbiz-field {
  display: grid;
  gap: var(--space-2);
  color: var(--rbiz-text);
  font-size: var(--type-body);
}

.rbiz-field label,
.rbiz-field__label {
  color: var(--rbiz-ink);
  font-size: var(--type-small);
  font-weight: 500;
}

.rbiz-field input,
.rbiz-field select,
.rbiz-field textarea,
.rbiz-input,
.rbiz-select,
.rbiz-textarea {
  width: 100%;
  min-height: 3rem;
  padding: 0.7rem 0.8rem;
  border: 1px solid var(--rbiz-field);
  border-radius: var(--radius-control);
  color: var(--rbiz-text);
  background: var(--rbiz-surface);
  font-size: var(--type-body);
  line-height: 1.45;
}

.rbiz-field textarea,
.rbiz-textarea {
  min-height: 8rem;
  resize: vertical;
}

.rbiz-field input::placeholder,
.rbiz-field textarea::placeholder,
.rbiz-input::placeholder,
.rbiz-textarea::placeholder {
  color: var(--rbiz-muted);
  opacity: 1;
}

.rbiz-field [aria-invalid="true"],
.rbiz-input[aria-invalid="true"],
.rbiz-select[aria-invalid="true"],
.rbiz-textarea[aria-invalid="true"] {
  border-color: var(--rbiz-danger);
}

.rbiz-field__hint {
  color: var(--rbiz-muted);
  font-size: var(--type-small);
}

.rbiz-field__error {
  color: var(--rbiz-danger);
  font-size: var(--type-small);
  font-weight: 500;
}

@media (min-width: 48rem) {
  :root {
    --page-gutter: 2rem;
  }

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

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

@media (min-width: 80rem) {
  :root {
    --page-gutter: 2.5rem;
  }

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

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto !important;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}