:root {
  /* STYLE.md tokens */
  --color-accent: #2072d5;
  --color-black: #0a0a0a;
  --font-primary: "Plus Jakarta Sans", ui-sans-serif, system-ui, sans-serif;

  /* Section aliases (dark chrome) */
  --atlas-bg: #0a0a0a;
  --atlas-nav-bg: rgba(21, 21, 21, 0.5);
  --atlas-nav-border: rgba(255, 255, 255, 0.04);
  --atlas-surface: #151515;
  --atlas-surface-border: rgba(255, 255, 255, 0.06);
  --atlas-cream: #f4f1ee;
  --atlas-muted: #918b86;
  --atlas-blue: var(--color-accent);
  --atlas-font: var(--font-primary);

  /* Shared motion */
  --atlas-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --atlas-motion: 0.7s;
  --atlas-motion-fast: 0.35s;
}

html {
  scroll-behavior: smooth;
}

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

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

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--atlas-font);
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(32, 114, 213, 0.18), transparent),
    var(--atlas-bg);
  color: var(--atlas-cream);
}

.preview {
  display: flex;
  justify-content: center;
  padding: 48px 24px;
}

.preview--chrome {
  position: sticky;
  top: 0;
  z-index: 50;
  padding: 16px 24px 12px;
  pointer-events: none;
}

.preview--chrome .atlas-nav-wrap {
  pointer-events: auto;
}

/* —— Atlas Nav —— */

.atlas-nav-wrap {
  position: relative;
  width: min(1024px, 100%);
}

.atlas-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
  padding: 0 17px;
  border-radius: 9999px;
  background: var(--atlas-nav-bg);
  border: 1px solid var(--atlas-nav-border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.atlas-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0 4px;
  border-radius: 8px;
  text-decoration: none;
  color: var(--atlas-cream);
}

.atlas-brand__mark {
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  color: #fff;
  flex-shrink: 0;
}

.atlas-brand__mark svg {
  width: 26px;
  height: 26px;
  display: block;
}

.atlas-brand__name {
  margin: 0;
  font-size: 16px;
  font-weight: 600;
  line-height: 24px;
  white-space: nowrap;
}

.atlas-menu {
  display: flex;
  align-items: center;
  gap: 4px;
}

.atlas-link,
.atlas-trigger {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin: 0;
  padding: 8px 12px;
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--atlas-muted);
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  line-height: 20px;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: color 0.15s ease, background-color 0.15s ease;
}

/* Triggers + plain links sit above open panels so sibling menus can take hover */
.atlas-trigger,
.atlas-link {
  position: relative;
  z-index: 6;
}

.atlas-link:hover,
.atlas-trigger:hover,
.atlas-dropdown.is-open > .atlas-trigger,
.atlas-dropdown:focus-within > .atlas-trigger {
  color: var(--atlas-cream);
  background: rgba(255, 255, 255, 0.04);
}

.atlas-chevron {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  transition: transform 0.15s ease;
}

.atlas-dropdown.is-open > .atlas-trigger .atlas-chevron,
.atlas-dropdown:focus-within > .atlas-trigger .atlas-chevron {
  transform: rotate(180deg);
}

.atlas-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.atlas-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  height: 32px;
  padding: 0 12px;
  border-radius: 9999px;
  background: var(--atlas-blue);
  color: #fff;
  font-size: 12px;
  font-weight: 500;
  line-height: 16px;
  text-decoration: none;
  transition: filter 0.15s ease, transform 0.15s ease;
}

.atlas-cta img {
  display: block;
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

.atlas-cta:hover {
  filter: brightness(1.08);
}

.atlas-cta:active {
  transform: translateY(1px);
}

/* —— Product dropdown —— */

.atlas-dropdown {
  position: relative;
}

.atlas-panel {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(6px);
  width: 502px;
  /* Transparent top padding = hover bridge (no dead gap under the trigger) */
  padding: 12px 0 0;
  background: transparent;
  border: 0;
  box-shadow: none;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.15s ease, transform 0.15s ease, visibility 0.15s ease;
  z-index: 5;
}

.atlas-dropdown.is-open > .atlas-panel {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}

.atlas-panel__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4px;
  padding: 9px;
  border-radius: 16px;
  background: var(--atlas-surface);
  border: 1px solid var(--atlas-surface-border);
  box-shadow: 0 24px 60px -30px rgba(0, 0, 0, 0.5);
}

.atlas-panel__item {
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding: 12px;
  border-radius: 12px;
  text-decoration: none;
  transition: background-color 0.15s ease;
}

.atlas-panel__item:hover {
  background: rgba(255, 255, 255, 0.04);
}

.atlas-panel__title {
  margin: 0;
  color: var(--atlas-cream);
  font-size: 14px;
  font-weight: 500;
  line-height: 20px;
}

.atlas-panel__desc {
  margin: 0;
  color: var(--atlas-muted);
  font-size: 12px;
  font-weight: 400;
  line-height: 20px;
}

.atlas-panel__item--wide {
  grid-column: 1;
}

/* —— Mobile burger (hidden on desktop) —— */

.atlas-burger {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--atlas-cream);
  cursor: pointer;
  flex-shrink: 0;
  position: relative;
}

.atlas-burger__icon {
  width: 18px;
  height: 18px;
  display: block;
}

.atlas-burger__icon--close {
  display: none;
}

.atlas-burger[aria-expanded="true"] .atlas-burger__icon--open {
  display: none;
}

.atlas-burger[aria-expanded="true"] .atlas-burger__icon--close {
  display: block;
}

.atlas-burger:hover {
  background: rgba(255, 255, 255, 0.1);
}

.atlas-burger:focus-visible {
  outline: 2px solid var(--atlas-blue);
  outline-offset: 2px;
}

/* —— Mobile panel (card under sticky pill) —— */

.atlas-mobile {
  display: none;
}

@media (max-width: 860px) {
  .preview--chrome {
    padding: 12px 16px;
    z-index: 110;
  }

  .atlas-nav-wrap {
    width: 100%;
  }

  .atlas-menu,
  .atlas-actions {
    display: none;
  }

  .atlas-burger {
    display: inline-flex;
  }

  .atlas-nav {
    width: 100%;
    padding: 0 12px 0 14px;
  }

  body.atlas-nav-open {
    overflow: hidden;
  }

  .atlas-mobile {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 100;
    padding: 80px 16px 24px;
    background: rgba(10, 10, 10, 0.45);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-sizing: border-box;
  }

  .atlas-mobile:not([hidden]) {
    display: block;
  }

  .atlas-mobile__sheet {
    display: flex;
    flex-direction: column;
    width: 100%;
    max-height: calc(100dvh - 104px);
    overflow: auto;
    padding: 8px 8px 16px;
    border-radius: 24px;
    background: #151515;
    border: 1px solid rgba(255, 255, 255, 0.06);
    box-sizing: border-box;
  }

  .atlas-mobile__body {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 4px;
  }

  .atlas-mobile__acc {
    border-radius: 16px;
  }

  .atlas-mobile__acc.is-open {
    background: #1c1c1c;
    padding: 4px;
  }

  /* Top-level rows: Product / Resources / Pricing / About */
  .atlas-mobile__acc-btn,
  .atlas-mobile__link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    min-height: 48px;
    margin: 0;
    padding: 14px 14px;
    border: 0;
    border-radius: 14px;
    background: transparent;
    color: var(--atlas-cream);
    font-family: inherit;
    font-size: 15px;
    font-weight: 500;
    line-height: 22px;
    letter-spacing: -0.01em;
    text-align: left;
    text-decoration: none;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
  }

  .atlas-mobile__acc-btn:hover,
  .atlas-mobile__link:hover {
    background: rgba(255, 255, 255, 0.04);
  }

  .atlas-mobile__acc-btn:focus-visible,
  .atlas-mobile__link:focus-visible {
    outline: 2px solid var(--atlas-blue);
    outline-offset: 0;
  }

  .atlas-mobile__acc.is-open > .atlas-mobile__acc-btn:hover {
    background: transparent;
  }

  .atlas-mobile__acc-btn .atlas-chevron {
    width: 16px;
    height: 16px;
    color: rgba(244, 241, 238, 0.45);
    transition: transform 0.15s ease;
  }

  .atlas-mobile__acc.is-open > .atlas-mobile__acc-btn .atlas-chevron {
    transform: rotate(180deg);
    color: rgba(244, 241, 238, 0.7);
  }

  .atlas-mobile__acc-panel {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 0 4px 8px 8px;
  }

  .atlas-mobile__acc-panel[hidden] {
    display: none;
  }

  /* Nested items: title + supporting line */
  .atlas-mobile__item {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 12px 12px;
    border-radius: 12px;
    text-decoration: none;
    -webkit-tap-highlight-color: transparent;
  }

  .atlas-mobile__item:hover,
  .atlas-mobile__item:active {
    background: rgba(255, 255, 255, 0.04);
  }

  .atlas-mobile__item:focus-visible {
    outline: 2px solid var(--atlas-blue);
    outline-offset: 0;
  }

  .atlas-mobile__item-title {
    color: var(--atlas-cream);
    font-size: 14px;
    font-weight: 500;
    line-height: 20px;
    letter-spacing: -0.01em;
  }

  .atlas-mobile__item-desc {
    color: var(--atlas-muted);
    font-size: 12px;
    font-weight: 400;
    line-height: 18px;
  }

  .atlas-mobile__actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 8px;
    padding: 16px 8px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
  }

  .atlas-mobile__cta {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    height: 48px;
    border-radius: 9999px;
    font-family: inherit;
    font-size: 15px;
    font-weight: 500;
    line-height: 22px;
    letter-spacing: -0.01em;
    text-decoration: none;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
    background: var(--atlas-blue);
    border: 0;
    color: #fff;
    gap: 8px;
  }

  .atlas-mobile__cta img {
    display: block;
    width: 16px;
    height: 16px;
    flex-shrink: 0;
  }

  .atlas-mobile__cta:hover {
    filter: brightness(1.08);
  }

  .atlas-mobile__cta:focus-visible {
    outline: 2px solid var(--atlas-blue);
    outline-offset: 2px;
  }
}