:root {
  --color-rmb-dark: #222831;
  --color-rmb-gray: #393e46;
  --color-rmb-accent: #00adb5;
  --color-rmb-light: #eeeeee;
  --color-rmb-white: #ffffff;
  --color-rmb-page: #f7f8f9;

  --color-rmb-gray-15: color-mix(in srgb, var(--color-rmb-gray) 15%, transparent);
  --color-rmb-gray-20: color-mix(in srgb, var(--color-rmb-gray) 20%, transparent);
  --color-rmb-gray-60: color-mix(in srgb, var(--color-rmb-gray) 60%, transparent);
  --color-rmb-accent-40: color-mix(in srgb, var(--color-rmb-accent) 40%, transparent);

  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --radius-pill: 999px;
  --page-padding: clamp(1.5rem, 4vw, 3.5rem);
  --font: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  line-height: 1.5;
  font-weight: 400;
  color: var(--color-rmb-dark);
  background: var(--color-rmb-page);
  -webkit-font-smoothing: antialiased;
}

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

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

.page {
  min-height: 100vh;
}

.brand-mark {
  display: block;
  width: fit-content;
  margin-bottom: 2rem;
}

.brand-mark img {
  border-radius: var(--radius-lg);
}

.page-main {
  min-height: 100vh;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
}

.intro {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  position: relative;
  padding: var(--page-padding);
}

.intro-inner {
  width: 100%;
}

.product-title {
  margin: 0 0 0.5rem;
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  line-height: 1.1;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: var(--color-rmb-dark);
}

.rmb-letter {
  color: var(--color-rmb-accent);
  font-weight: 700;
}

.remember-sep {
  opacity: 0.45;
  padding: 0 0.05em;
  font-weight: 400;
  color: var(--color-rmb-gray);
}

.product-tagline {
  margin: 0 0 0.75rem;
  font-size: 1.125rem;
  color: var(--color-rmb-gray);
}

.product-lead {
  margin: 0;
  max-width: 24rem;
  font-size: 0.9375rem;
  color: var(--color-rmb-gray-60);
}

.download-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: fit-content;
  margin-top: 2.5rem;
  padding: 0.875rem 1.75rem;
  border-radius: var(--radius-pill);
  background: var(--color-rmb-accent);
  color: var(--color-rmb-white);
  font-size: 0.9375rem;
  font-weight: 500;
  transition: background 0.15s;
}

.download-primary:hover {
  background: color-mix(in srgb, var(--color-rmb-accent) 88%, var(--color-rmb-dark));
}

.download-version {
  margin: 0.75rem 0 0;
  font-size: 0.8125rem;
  color: var(--color-rmb-gray-60);
}

.agents-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1rem;
  margin-top: 2.5rem;
}

.agents-strip-label {
  font-size: 0.8125rem;
  color: var(--color-rmb-gray-60);
}

.agents-strip-logos {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.625rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.agents-strip-logos li {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
}

.agents-strip-logos img {
  width: 1.25rem;
  height: 1.25rem;
  object-fit: contain;
  opacity: 0.85;
}

.page-footer {
  position: absolute;
  bottom: var(--page-padding);
  left: var(--page-padding);
  z-index: 2;
}

.footer-actions {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  margin-bottom: 0.625rem;
  overflow: visible;
}

.footer-github {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-pill);
  color: var(--color-rmb-gray);
  transition: color 0.15s, background 0.15s;
}

.footer-github:hover {
  color: var(--color-rmb-dark);
  background: var(--color-rmb-gray-15);
}

.lang-picker {
  position: relative;
}

.lang-picker-trigger {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 36px;
  padding: 0.375rem 0.75rem;
  border: 1px solid var(--color-rmb-gray-20);
  border-radius: var(--radius-pill);
  background: var(--color-rmb-white);
  color: var(--color-rmb-dark);
  font: inherit;
  font-size: 0.8125rem;
  line-height: 1;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}

.lang-picker-trigger:hover,
.lang-picker-trigger[aria-expanded="true"] {
  border-color: var(--color-rmb-gray-60);
}

.lang-picker-icon {
  flex-shrink: 0;
  color: var(--color-rmb-gray);
}

.lang-picker-menu {
  position: absolute;
  top: auto;
  left: 0;
  bottom: calc(100% + 0.5rem);
  z-index: 30;
  display: block;
  min-width: 11rem;
  margin: 0;
  padding: 0.375rem;
  list-style: none;
  border: 1px solid var(--color-rmb-gray-20);
  border-radius: var(--radius-lg);
  background: var(--color-rmb-white);
  box-shadow: 0 -8px 24px rgb(34 40 49 / 0.1);
}

.lang-picker-menu[hidden] {
  display: none !important;
}

.lang-picker-option {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: 100%;
  padding: 0.5rem 0.625rem;
  border: none;
  border-radius: var(--radius-md);
  background: transparent;
  color: var(--color-rmb-dark);
  font: inherit;
  font-size: 0.8125rem;
  text-align: left;
  cursor: pointer;
  transition: background 0.15s;
}

.lang-picker-option:hover {
  background: color-mix(in srgb, var(--color-rmb-light) 50%, transparent);
}

.lang-picker-check {
  flex-shrink: 0;
  opacity: 0;
  color: var(--color-rmb-dark);
}

.lang-picker-option[aria-selected="true"] .lang-picker-check {
  opacity: 1;
}

.footer-copy {
  margin: 0;
  font-size: 0.75rem;
  color: var(--color-rmb-gray-60);
}

.showcase {
  background: var(--color-rmb-accent);
  min-height: 100%;
}

@media (max-width: 900px) {
  .page-main {
    grid-template-columns: 1fr;
  }

  .showcase {
    min-height: 12rem;
    order: -1;
  }

  .intro {
    align-items: flex-start;
    padding-top: 2rem;
    padding-bottom: 4rem;
  }
}

@media (max-width: 480px) {
  .download-primary {
    width: 100%;
  }
}