/* Rack Build shell — design tokens + landing styles.
 *
 * Tokens are mirrored from the RackBuild Design System
 * (uploads/RackBuild Design System.zip → colors_and_type.css). Kept
 * inline here so the shell has zero build step and zero asset
 * dependencies — one CSS file, one JS file, one HTML file is the
 * whole shell. If the design system changes, copy the relevant
 * `:root` / `[data-theme="dark"]` blocks back over.
 */

:root {
  /* Neutrals — paper / ink / rule / chip */
  --paper: #f7f8fb;
  --paper-2: #ffffff;
  --ink: #101318;
  --ink-2: #3a414c;
  --ink-3: #6f7a88;
  --ink-4: #a1aab6;
  --rule: #dfe6ef;
  --rule-2: #edf1f6;
  --chip: #eef3f8;

  /* Semantic */
  --accent: oklch(0.55 0.14 250);          /* muted blue */
  --accent-soft: oklch(0.96 0.02 250);
  --ok: #24845a;
  --warn: #a96f1a;
  --danger: #be3d42;

  /* Type */
  --ui: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;

  /* Radii */
  --radius: 12px;
  --radius-sm: 6px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(20, 19, 15, 0.04), 0 1px 1px rgba(20, 19, 15, 0.02);
  --shadow-md: 0 4px 16px -4px rgba(20, 19, 15, 0.06), 0 1px 2px rgba(20, 19, 15, 0.03);
}

html[data-theme="dark"] {
  --paper: #0a0e1a;
  --paper-2: #0f1422;
  --ink: #eef2f9;
  --ink-2: #c0c9dc;
  --ink-3: #7d89a3;
  --ink-4: #525d76;
  --rule: rgba(91, 162, 229, 0.10);
  --rule-2: rgba(91, 162, 229, 0.18);
  --chip: #161d2f;
  --accent-soft: rgba(91, 162, 229, 0.15);
  --shadow-sm: none;
  --shadow-md: none;
}

/* ---------- Reset / base ---------- */

* {
  box-sizing: border-box;
}
html,
body {
  height: 100%;
}
body {
  margin: 0;
  font-family: var(--ui);
  font-size: 13px;
  line-height: 1.45;
  color: var(--ink);
  background: var(--paper);
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
}
a {
  color: inherit;
  text-decoration: none;
}
button {
  font: inherit;
}
.mono {
  font-family: var(--mono);
  font-feature-settings: "zero", "ss02";
}

/* ---------- App layout ---------- */

.rb-app {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  background: var(--paper);
  color: var(--ink);
}

/* ---------- Top nav ---------- */

.rb-nav {
  --nav-bg: #101116;
  --nav-bg-2: #151820;
  --nav-rule: #252a35;
  --nav-ink: #f7f8fb;
  --nav-ink-2: #d7dce6;
  --nav-ink-3: #9aa4b5;
  --nav-ink-4: #596170;
  --nav-chip: #1a1e27;
  --nav-chip-hover: #202633;
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  gap: 8px;
  height: 52px;
  padding: 0 16px;
  border-bottom: 1px solid var(--nav-rule);
  background: var(--nav-bg);
  color: var(--nav-ink);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.03) inset;
}
.rb-brand {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
  gap: 8px;
  min-width: 0;
  height: 32px;
  color: var(--nav-ink);
}
.rb-brand-mark {
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  background: var(--accent);
  color: white;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.16) inset;
}
.rb-brand-name {
  display: inline-block;
  font-size: 14px;
  font-weight: 700;
  color: var(--nav-ink);
  white-space: nowrap;
}
.rb-brand-ver {
  font-size: 10px;
  color: var(--nav-ink-4);
  padding: 2px 5px;
  border-radius: 4px;
  background: var(--nav-chip);
}

.rb-active-project {
  display: inline-flex;
  align-items: center;
  flex: 0 1 auto;
  min-width: 0;
  gap: 8px;
}
.rb-active-project::before {
  content: "/";
  color: var(--nav-ink-4);
  font-weight: 650;
}
.rb-active-project[hidden] {
  display: none;
}

.rb-project-health {
  min-width: 0;
  height: 28px;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 0 9px;
  border: 1px solid var(--nav-rule);
  border-radius: 7px;
  background: var(--nav-chip);
  color: var(--nav-ink-3);
  font-size: 11px;
  font-weight: 650;
  white-space: nowrap;
}
.rb-project-health[hidden] {
  display: none;
}
.rb-project-health-dot {
  width: 6px;
  height: 6px;
  flex: 0 0 auto;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.rb-project-health[data-state="backed-up"] .rb-project-health-dot {
  background: var(--ok);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--ok) 20%, transparent);
}
.rb-project-health[data-state="pending"] .rb-project-health-dot {
  background: var(--warn);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--warn) 22%, transparent);
}
.rb-project-health-text {
  overflow: hidden;
  text-overflow: ellipsis;
}

.rb-breadcrumb-sep {
  color: var(--nav-ink-4);
  font-size: 14px;
  user-select: none;
}
.rb-project-crumb {
  display: inline-flex;
  align-items: center;
  min-width: 0;
  gap: 7px;
  height: 32px;
  padding: 0 8px 0 7px;
  border-radius: 6px;
  color: var(--nav-ink-2);
  transition: background-color 0.12s ease, color 0.12s ease;
}
.rb-project-crumb:hover {
  background: var(--nav-chip);
  color: var(--nav-ink);
}
.rb-context-dot {
  width: 6px;
  height: 6px;
  flex: 0 0 auto;
  border-radius: 999px;
  background: var(--nav-ink-4);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.02);
}
.rb-active-project-name {
  max-width: min(24vw, 240px);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  background: transparent;
  border: 0;
  padding: 0;
  font-family: var(--ui);
  font-size: 13px;
  font-weight: 600;
  color: inherit;
  cursor: pointer;
}

.rb-tabs {
  display: flex;
  align-self: stretch;
  align-items: flex-end;
  gap: 0;
  flex: 1;
  min-width: 0;
  height: auto;
  margin-left: 12px;
}
.rb-active-project[hidden] + .rb-tabs .rb-tabs-sep {
  display: none;
}
.rb-tab {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 40px;
  margin-bottom: -1px;
  padding: 0 16px;
  border: 1px solid transparent;
  border-radius: 8px 8px 0 0;
  background: transparent;
  font-size: 13px;
  font-weight: 600;
  color: var(--nav-ink-3);
  cursor: pointer;
  white-space: nowrap;
  transition: background-color 0.12s ease, border-color 0.12s ease,
    color 0.12s ease;
}
.rb-tab:hover {
  background: rgba(255, 255, 255, 0.035);
  color: var(--nav-ink-2);
}
.rb-tab.active {
  background: var(--paper-2);
  border-color: var(--nav-rule);
  border-bottom-color: var(--paper-2);
  color: var(--nav-ink);
  box-shadow: none;
}
.rb-tab-dot {
  width: 7px;
  height: 7px;
  flex: 0 0 auto;
  border-radius: 999px;
  background: var(--nav-ink-4);
}
.rb-tab--cably .rb-tab-dot {
  background: #4a9eff;
}
.rb-tab--phasy .rb-tab-dot {
  background: #f5c842;
}
.rb-tab--tracy .rb-tab-dot {
  background: #8b7cf6;
}
.rb-tool-ver {
  display: none;
  align-items: center;
  height: 18px;
  padding: 0 5px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.025);
  color: var(--nav-ink-4);
  font-size: 9.5px;
  font-weight: 600;
  line-height: 1;
}
.rb-tab.active .rb-tool-ver {
  display: inline-flex;
  border-color: rgba(91, 162, 229, 0.28);
  background: rgba(91, 162, 229, 0.10);
  color: var(--nav-ink-2);
}

.rb-nav-right {
  display: flex;
  gap: 6px;
  align-items: center;
  flex: 0 0 auto;
  margin-left: auto;
}
.rb-icon-btn {
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid transparent;
  border-radius: 7px;
  background: transparent;
  color: var(--nav-ink-3);
  cursor: pointer;
  transition: background-color 0.12s ease, border-color 0.12s ease, color 0.12s ease,
    transform 0.12s ease;
}
.rb-icon-btn:hover {
  background: var(--nav-chip);
  border-color: var(--nav-rule);
  color: var(--nav-ink);
  transform: translateY(-0.5px);
}
.rb-icon-btn:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

@media (max-width: 760px) {
  .rb-nav {
    padding: 0 10px;
    gap: 5px;
  }
  .rb-brand {
    gap: 6px;
  }
  .rb-brand-name,
  .rb-active-project-name {
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
  }
  .rb-project-health {
    display: none;
  }
  .rb-brand-ver,
  .rb-tool-ver {
    display: none !important;
  }
  .rb-tab {
    padding: 0 8px;
  }
  .rb-nav-btn {
    padding: 0 9px;
  }
}

@media (max-width: 560px) {
  .rb-brand-name {
    max-width: 80px;
  }
  .rb-active-project-name {
    max-width: 24vw;
  }
  .rb-tab-label {
    display: none;
  }
  .rb-tab {
    width: 30px;
    justify-content: center;
    padding: 0;
  }
}

/* ---------- Main content ---------- */

.rb-main {
  width: 100%;
  max-width: 980px;
  margin: 0 auto;
  padding: 56px 24px 80px;
}

/* When a tool iframe is showing, give it the whole body area —
 * full width, no padding, no max-width. The header (52px) and footer
 * (36px) are still sticky, so the iframe fills viewport-minus-chrome.
 */
.rb-main--full {
  max-width: none;
  padding: 0;
  margin: 0;
  /* Match the iframe's height exactly so we don't get a scrollbar
   * outside the iframe in addition to the one inside the iframe. */
  height: calc(100vh - 52px - 36px);
}

/* Refresh fallback: if the iframe is visible before/without the JS class
 * landing on <main>, keep the tool host full-bleed anyway. This makes a
 * browser refresh on /phasy render the same width as clicking into Phasy
 * from another tool.
 */
.rb-main:has(> .rb-tool-frame:not([hidden])) {
  max-width: none;
  padding: 0;
  margin: 0;
  height: calc(100vh - 52px - 36px);
}

/* ---------- Tool iframe ---------- */

.rb-tool-frame {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
  background: var(--paper);
}

/* ---------- Landing ---------- */

.rb-landing-head {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 40px;
  max-width: 580px;
}
.rb-landing-title {
  font-size: 32px;
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0;
}
.rb-landing-sub {
  font-size: 14px;
  line-height: 1.55;
  color: var(--ink-3);
  margin: 0;
}
.eyebrow {
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-4);
}

.rb-tool-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
@media (max-width: 760px) {
  .rb-tool-grid {
    grid-template-columns: 1fr;
  }
}

.rb-card {
  background: var(--paper-2);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: border-color 0.12s ease, background-color 0.12s ease,
    transform 0.12s ease, box-shadow 0.12s ease;
}
.rb-tool-card {
  cursor: pointer;
  min-height: 180px;
}
.rb-tool-card:hover {
  border-color: var(--ink-3);
  background: color-mix(in oklab, var(--ink) 2%, var(--paper-2));
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}
.rb-tool-card:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.rb-tool-glyph {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--ink);
  border: 1px solid var(--rule);
  border-radius: 8px;
  background: var(--paper);
  margin-bottom: 6px;
}
.rb-tool-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: -0.005em;
}
.rb-tool-desc {
  font-size: 12.5px;
  line-height: 1.5;
  color: var(--ink-3);
  flex: 1;
}
.rb-tool-cta {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 500;
  color: var(--ink-2);
  letter-spacing: 0.02em;
  padding-top: 4px;
  border-top: 1px solid var(--rule-2);
  margin-top: 4px;
}
.rb-tool-card:hover .rb-tool-cta {
  color: var(--accent);
}

/* ---------- Footer ---------- */

.rb-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 36px;
  padding: 0 18px;
  border-top: 1px solid var(--rule);
  background: var(--paper);
  font-size: 11px;
  color: var(--ink-4);
}
.rb-footer-left {
  display: flex;
  gap: 8px;
  align-items: center;
}
.rb-footer-left .rb-dot {
  color: var(--ink-4);
}
.rb-footer-right {
  display: flex;
  gap: 12px;
}
.rb-footer-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--ink-3);
  padding: 4px 8px;
  border-radius: 4px;
  transition: color 0.12s ease, background-color 0.12s ease;
}
.rb-footer-link:hover {
  color: var(--ink);
  background: var(--chip);
}

/* Save / Close buttons. Save is the primary affordance; Close stays
 * quiet so the right action cluster reads like the cross-app mock. */
.rb-nav-btn {
  height: 28px;
  padding: 0 12px;
  border-radius: 7px;
  border: 1px solid #4a9eff;
  background: #4a9eff;
  color: white;
  font-family: var(--ui);
  font-size: 12px;
  font-weight: 700;
  cursor: pointer;
  transition: opacity 0.12s ease, background-color 0.12s ease,
    border-color 0.12s ease, color 0.12s ease;
}
.rb-nav-btn:hover {
  opacity: 0.88;
}
.rb-nav-btn[hidden] {
  display: none;
}
.rb-nav-btn-secondary {
  background: var(--nav-chip);
  color: var(--nav-ink-2);
  border-color: var(--nav-rule);
}
.rb-nav-btn-secondary:hover {
  background: var(--nav-chip-hover);
  color: var(--nav-ink);
  border-color: #333b4c;
  opacity: 1;
}

/* ---------- Disabled tab state (no active project) ---------- */

.rb-tab[aria-disabled="true"] {
  cursor: not-allowed;
  color: var(--nav-ink-4);
  pointer-events: auto; /* keep the tooltip/title accessible */
}
.rb-tab[aria-disabled="true"]:hover {
  background: transparent;
  border-color: transparent;
  color: var(--nav-ink-4);
}
.rb-tab[aria-disabled="true"] .rb-tab-dot {
  background: var(--nav-ink-4);
  opacity: 0.65;
}

/* ---------- Project actions (homepage cards) ---------- */

.rb-project-actions {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  margin-bottom: 32px;
}

/* ---------- Active project cockpit ---------- */

.rb-project-dashboard {
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--paper-2);
  box-shadow: var(--shadow-sm);
  padding: 18px;
  margin-bottom: 18px;
}
.rb-project-dashboard[hidden] {
  display: none;
}
.rb-project-dashboard-main {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
}
.rb-project-dashboard-title {
  margin: 4px 0 4px;
  font-size: 22px;
  line-height: 1.15;
  font-weight: 650;
  color: var(--ink);
}
.rb-project-dashboard-sub {
  margin: 0;
  color: var(--ink-3);
  font-size: 12.5px;
}
.rb-project-dashboard-actions {
  display: inline-flex;
  gap: 8px;
  flex-shrink: 0;
}
.rb-btn {
  height: 30px;
  padding: 0 13px;
  border-radius: 6px;
  border: 1px solid var(--rule);
  background: var(--paper-2);
  color: var(--ink-2);
  font-size: 12px;
  font-weight: 650;
  cursor: pointer;
  transition: background-color 0.12s ease, border-color 0.12s ease,
    color 0.12s ease, transform 0.12s ease;
}
.rb-btn:hover {
  background: var(--chip);
  border-color: var(--ink-3);
  color: var(--ink);
}
.rb-btn-primary {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}
.rb-btn-primary:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}
@media (max-width: 760px) {
  .rb-project-dashboard-main {
    flex-direction: column;
  }
}
@media (max-width: 600px) {
  .rb-project-actions {
    grid-template-columns: 1fr;
  }
}

/* Reuse the tool-card visual language so the homepage feels
 * consistent — same border, padding, hover, glyph treatment. The
 * button-element variant just unsets the default button styling. */
.rb-project-card {
  appearance: none;
  border: 1px solid var(--rule);
  background: var(--paper-2);
  border-radius: var(--radius);
  padding: 20px;
  text-align: left;
  font: inherit;
  color: inherit;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-height: 180px;
  transition: border-color 0.12s ease, background-color 0.12s ease,
    transform 0.12s ease, box-shadow 0.12s ease;
}
.rb-project-card:hover {
  border-color: var(--ink-3);
  background: color-mix(in oklab, var(--ink) 2%, var(--paper-2));
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}
.rb-project-card:focus-visible {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.rb-project-card .rb-tool-glyph,
.rb-project-card .rb-tool-name,
.rb-project-card .rb-tool-desc,
.rb-project-card .rb-tool-cta {
  /* inherit the existing tool-card child rules — no override needed */
}

/* ---------- Recent projects list ---------- */

.rb-recent {
  margin-top: 16px;
  margin-bottom: 32px;
}
.rb-recent[hidden] {
  display: none;
}
.rb-recent-head {
  margin-bottom: 8px;
}
.rb-recent-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--paper-2);
}
.rb-recent-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-top: 1px solid var(--rule-2);
}
.rb-recent-row:first-child {
  border-top: 0;
}
.rb-recent-name {
  flex: 1;
  font-size: 13px;
  color: var(--ink);
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.rb-recent-time {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
}
.rb-recent-open {
  font-size: 11.5px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 6px;
  border: 1px solid var(--rule);
  background: var(--paper);
  color: var(--ink-2);
  cursor: pointer;
  transition: all 0.12s ease;
}
.rb-recent-open:hover {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
}
.rb-recent-remove {
  background: transparent;
  border: 0;
  color: var(--ink-4);
  font-size: 14px;
  line-height: 1;
  cursor: pointer;
  padding: 2px 6px;
  border-radius: 4px;
}
.rb-recent-remove:hover {
  color: var(--danger);
  background: var(--chip);
}

/* ---------- Homepage tip ---------- */

.rb-landing-tip {
  margin-top: 24px;
  font-size: 12px;
  line-height: 1.55;
  color: var(--ink-3);
}
.rb-landing-tip-divider {
  display: block;
  height: 1px;
  background: var(--rule);
  margin-bottom: 14px;
}
.rb-landing-tip strong {
  color: var(--ink-2);
  font-weight: 600;
}

/* ---------- Modal host ---------- */

.rb-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
}
.rb-modal {
  background: var(--paper-2);
  color: var(--ink);
  border: 1px solid var(--rule);
  border-radius: 12px;
  box-shadow: var(--shadow-md);
  min-width: 380px;
  max-width: 480px;
  padding: 0;
  font-family: var(--ui);
}
.rb-modal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 18px;
  border-bottom: 1px solid var(--rule);
}
.rb-modal-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  margin: 0;
}
.rb-modal-close {
  background: transparent;
  border: 0;
  color: var(--ink-3);
  font-size: 16px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
}
.rb-modal-close:hover {
  color: var(--ink);
  background: var(--chip);
}
.rb-modal-body {
  padding: 18px;
  font-size: 13px;
  line-height: 1.55;
  color: var(--ink-2);
}
.rb-modal-body label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  color: var(--ink-3);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
}
.rb-modal-body input[type="text"] {
  width: 100%;
  padding: 8px 10px;
  border: 1px solid var(--rule);
  border-radius: 6px;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--ui);
  font-size: 13px;
}
.rb-modal-body input[type="text"]:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.rb-modal-body .rb-modal-help {
  margin-top: 8px;
  font-size: 11.5px;
  color: var(--ink-3);
}
.rb-modal-body .rb-modal-error {
  margin-top: 8px;
  font-size: 12px;
  color: var(--danger);
}
.rb-modal-foot {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 12px 18px;
  border-top: 1px solid var(--rule);
}
.rb-modal-foot .rb-btn {
  padding: 6px 14px;
  font-size: 12px;
  border-radius: 6px;
  cursor: pointer;
  font-family: var(--ui);
  border: 1px solid var(--rule);
  background: var(--paper-2);
  color: var(--ink-2);
  transition: all 0.12s ease;
}
.rb-modal-foot .rb-btn:hover {
  background: var(--chip);
  color: var(--ink);
}
.rb-modal-foot .rb-btn-primary {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
  font-weight: 600;
}
.rb-modal-foot .rb-btn-primary:hover {
  background: var(--ink-2);
  border-color: var(--ink-2);
  color: var(--paper);
  opacity: 0.92;
}
.rb-modal-foot .rb-btn-primary:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}
.rb-modal-foot .rb-btn-danger {
  border-color: var(--danger);
  background: var(--danger);
  color: var(--paper);
  font-weight: 600;
}

/* ---------- Toast banner (top-of-main) ---------- */

.rb-toast-banner {
  position: fixed;
  top: 64px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--ink);
  color: var(--paper);
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  z-index: 100;
  box-shadow: var(--shadow-md);
}
.rb-toast-banner[hidden] {
  display: none;
}
.rb-toast-banner-close {
  background: transparent;
  border: 0;
  color: var(--paper);
  opacity: 0.7;
  font-size: 14px;
  cursor: pointer;
  padding: 0 4px;
}
.rb-toast-banner-close:hover {
  opacity: 1;
}

/* ============================================================================
   Rack Build Blueprint global style layer
   Shared visual tokens only. No behavior, storage, or navigation changes.
   ============================================================================ */
:root {
  --bp-bg0: #0a0e1a;
  --bp-bg1: #0f1422;
  --bp-bg2: #161d2f;
  --bp-bg3: #1e2740;
  --bp-bg4: #252e48;
  --bp-line1: rgba(91, 162, 229, 0.10);
  --bp-line2: rgba(91, 162, 229, 0.18);
  --bp-line3: rgba(91, 162, 229, 0.30);
  --bp-fg1: #eef2f9;
  --bp-fg2: #c0c9dc;
  --bp-fg3: #7d89a3;
  --bp-fg4: #525d76;
  --bp-fg5: #3a4259;
  --bp-accent: #5ba2e5;
  --bp-accent-deep: #2a6fdb;
  --bp-accent-soft: rgba(91, 162, 229, 0.15);
  --bp-good: #5fc99a;
  --bp-warn: #e8c168;
  --bp-bad: #e87a6a;
  --bp-pdu-red: #c8504a;
  --bp-pdu-blue: #3d7dc4;

  --paper: var(--bp-bg0);
  --paper-2: var(--bp-bg1);
  --chip: var(--bp-bg2);
  --rule: var(--bp-line1);
  --rule-2: var(--bp-line2);
  --ink: var(--bp-fg1);
  --ink-2: var(--bp-fg2);
  --ink-3: var(--bp-fg3);
  --ink-4: var(--bp-fg4);
  --ink-5: var(--bp-fg5);
  --accent: var(--bp-accent);
  --accentDeep: var(--bp-accent-deep);
  --accent-deep: var(--bp-accent-deep);
  --accent-soft: var(--bp-accent-soft);
  --ok: var(--bp-good);
  --good: var(--bp-good);
  --warn: var(--bp-warn);
  --danger: var(--bp-bad);
  --bad: var(--bp-bad);
  --pduRed: var(--bp-pdu-red);
  --pduBlue: var(--bp-pdu-blue);

  --radius: 10px;
  --radius-sm: 7px;
  --shadow-sm: none;
  --shadow-md: none;
  --ui: "Outfit", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", SFMono-Regular, Menlo, Consolas, monospace;
  --accent-fg: #ffffff;
}

html[data-theme="light"] {
  --bp-bg0: #f6f8fc;
  --bp-bg1: #ffffff;
  --bp-bg2: #eef2f9;
  --bp-bg3: #e2e8f3;
  --bp-bg4: #cdd6e6;
  --bp-fg1: #0e1830;
  --bp-fg2: #33405c;
  --bp-fg3: #5b6886;
  --bp-fg4: #8693ab;
  --bp-fg5: #b1bbcd;
  --bp-accent: #2a6fdb;
  --bp-accent-deep: #1d56b3;
  --bp-accent-soft: rgba(42, 111, 219, 0.12);
  --bp-good: #2c9265;
  --bp-warn: #a37520;
  --bp-bad: #c84a3c;
}

html[data-theme="dark"] {
  --bp-bg0: #0a0e1a;
  --bp-bg1: #0f1422;
  --bp-bg2: #161d2f;
  --bp-bg3: #1e2740;
  --bp-bg4: #252e48;
  --bp-fg1: #eef2f9;
  --bp-fg2: #c0c9dc;
  --bp-fg3: #7d89a3;
  --bp-fg4: #525d76;
  --bp-fg5: #3a4259;
  --bp-accent: #5ba2e5;
  --bp-accent-deep: #2a6fdb;
  --bp-accent-soft: rgba(91, 162, 229, 0.15);
  --bp-good: #5fc99a;
  --bp-warn: #e8c168;
  --bp-bad: #e87a6a;
}

body,
button,
input,
select,
textarea {
  font-family: var(--ui);
}

body {
  background: var(--paper);
  color: var(--ink);
  font-feature-settings: "tnum" 1;
}

.mono,
code,
kbd,
pre,
[class*="mono"],
[class*="Mono"] {
  font-family: var(--mono);
  font-feature-settings: "tnum" 1, "zero" 1;
}

input,
select,
textarea {
  background: var(--chip);
  color: var(--ink);
  border-color: var(--rule-2);
  border-radius: var(--radius-sm);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent-soft);
}

.rb-nav {
  --nav-bg: var(--bp-bg1);
  --nav-bg-2: var(--bp-bg2);
  --nav-rule: var(--bp-line1);
  --nav-ink: var(--bp-fg1);
  --nav-ink-2: var(--bp-fg2);
  --nav-ink-3: var(--bp-fg3);
  --nav-ink-4: var(--bp-fg4);
  --nav-chip: var(--bp-bg2);
  --nav-chip-hover: var(--bp-bg3);
  height: 48px;
  padding: 0 14px;
  gap: 10px;
  background: var(--bp-bg1);
  border-bottom-color: var(--bp-line1);
  box-shadow: none;
}

.rb-brand-mark {
  width: 22px;
  height: 22px;
  border-radius: 5px;
  background: linear-gradient(135deg, var(--bp-accent), var(--bp-accent-deep));
  font-size: 10px;
  font-weight: 700;
  box-shadow: none;
}

.rb-brand-name {
  font-size: 13px;
  font-weight: 700;
}

.rb-brand-ver,
.rb-version-badge,
.rb-tab-ver {
  font-family: var(--mono);
  font-size: 9px;
  font-weight: 500;
  letter-spacing: 0.04em;
  border-radius: 3px;
}

.rb-tab {
  height: 30px;
  border-radius: 6px;
  font-size: 12px;
  font-weight: 500;
}

.rb-nav-btn,
.rb-btn,
.rb-modal-foot .rb-btn {
  border-radius: 7px;
  box-shadow: none;
}

.rb-nav-btn-primary,
.rb-modal-foot .rb-btn-primary {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-fg);
}

.rb-main--full,
.rb-main:has(> .rb-tool-frame:not([hidden])) {
  height: calc(100vh - 48px - 36px);
}

.rb-toast-banner {
  top: 58px;
  border: 1px solid var(--rule);
  background: var(--paper-2);
  color: var(--ink);
  box-shadow: none;
}

/* ---------- Top tabs requested polish ---------- */

.rb-nav {
  gap: 12px;
  padding: 0 16px;
}

.rb-brand {
  height: 32px;
  gap: 8px;
}

.rb-brand-home {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  color: var(--nav-ink);
}

.rb-brand-mark {
  width: 24px;
  height: 24px;
  border-radius: 7px;
  font-size: 11px;
}

.rb-brand-name {
  font-size: 14px;
  font-weight: 750;
  letter-spacing: 0;
}

.rb-brand-ver {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 22px;
  padding: 0 7px;
  border: 1px solid var(--nav-rule);
  border-radius: 6px;
  background: var(--nav-chip);
  color: var(--nav-ink-4);
  cursor: pointer;
  line-height: 1;
  transition: background-color 0.12s ease, border-color 0.12s ease,
    color 0.12s ease, transform 0.12s ease;
}

.rb-brand-ver:hover,
.rb-brand-ver:focus-visible {
  background: var(--nav-chip-hover);
  border-color: var(--nav-ink-4);
  color: var(--nav-ink);
  outline: none;
  transform: translateY(-0.5px);
}

.rb-active-project {
  flex: 0 0 auto;
}

.rb-project-crumb {
  height: 32px;
  padding: 3px 12px 3px 7px;
  border: 1px solid var(--nav-rule);
  border-radius: 9px;
  background: color-mix(in oklab, var(--nav-chip) 88%, transparent);
  color: var(--nav-ink);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.02) inset;
}

.rb-project-crumb:hover,
.rb-project-crumb:focus-visible {
  border-color: var(--nav-ink-4);
  background: var(--nav-chip-hover);
  color: var(--nav-ink);
  outline: none;
}

.rb-project-code {
  width: 22px;
  height: 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  border: 1px solid var(--nav-rule);
  background: color-mix(in oklab, var(--accent) 17%, var(--nav-chip));
  color: color-mix(in oklab, var(--accent) 82%, white);
  font-size: 10px;
  font-weight: 750;
  letter-spacing: 0;
}

.rb-active-project-name {
  max-width: min(26vw, 280px);
  font-size: 14px;
  font-weight: 750;
  letter-spacing: 0;
  cursor: pointer;
}

.rb-tabs {
  flex: 0 1 auto;
  align-self: stretch;
  align-items: flex-end;
  gap: 0;
  height: auto;
  margin-left: 12px;
}

.rb-breadcrumb-sep,
.rb-tabs-sep {
  display: none;
}

.rb-tab {
  height: 40px;
  margin-bottom: -1px;
  min-width: 92px;
  justify-content: center;
  padding: 0 16px;
  border: 1px solid transparent;
  border-radius: 8px 8px 0 0;
  background: transparent;
  color: var(--nav-ink-3);
  font-size: 14px;
  font-weight: 750;
  letter-spacing: 0;
}

.rb-tab:hover {
  background: rgba(255, 255, 255, 0.035);
  border-color: transparent;
  color: var(--nav-ink-2);
}

.rb-tab.active {
  background: var(--paper-2);
  border-color: var(--nav-rule);
  border-bottom-color: var(--paper-2);
  color: var(--nav-ink);
  box-shadow: none;
}

.rb-tab-dot {
  width: 8px;
  height: 8px;
}

.rb-tool-ver {
  display: none !important;
}

.rb-tab.active .rb-tool-ver {
  display: inline-flex !important;
}

.rb-project-dashboard-title[role="button"] {
  cursor: pointer;
  border-radius: 6px;
  outline: none;
}

.rb-project-dashboard-title[role="button"]:hover {
  color: var(--accent);
}

.rb-project-dashboard-title[role="button"]:focus-visible {
  box-shadow: 0 0 0 3px var(--accent-soft);
}

/* Rack Build changelog mirrors the Cably version-badge slide-in. */
.rb-changelog-scrim {
  position: fixed;
  inset: 0;
  z-index: 9700;
  background: transparent;
}

.rb-changelog-panel {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  z-index: 9750;
  width: 340px;
  display: flex;
  flex-direction: column;
  border-left: 1px solid var(--rule);
  background: var(--paper-2);
  color: var(--ink);
  box-shadow: -10px 0 26px rgba(0, 0, 0, 0.36);
  animation: rb-changelog-in 0.18s ease-out;
}

@keyframes rb-changelog-in {
  from { transform: translateX(100%); }
  to { transform: translateX(0); }
}

.rb-changelog-h {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid var(--rule);
  color: var(--ink-3);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.rb-changelog-close {
  border: 0;
  border-radius: 4px;
  background: transparent;
  color: var(--ink-3);
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
  padding: 0 5px;
}

.rb-changelog-close:hover,
.rb-changelog-close:focus-visible {
  background: var(--chip);
  color: var(--ink);
  outline: none;
}

.rb-changelog-body {
  flex: 1;
  overflow: auto;
}

.rb-changelog-entry {
  position: relative;
  padding: 14px 18px 16px;
  border-top: 1px solid var(--rule);
}

.rb-changelog-entry:first-child {
  border-top: 0;
}

.rb-changelog-entry.current::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  width: 2px;
  background: var(--accent);
}

.rb-changelog-ver-row {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin-bottom: 8px;
  font-family: var(--mono);
}

.rb-changelog-ver {
  color: var(--ink);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.rb-changelog-date {
  color: var(--ink-4);
  font-size: 11px;
}

.rb-changelog-notes {
  margin: 0;
  padding-left: 18px;
  color: var(--ink-2);
  font-size: 12.5px;
  line-height: 1.55;
}

.rb-changelog-notes li {
  margin-bottom: 4px;
}

.rb-changelog-notes li::marker {
  color: var(--accent);
}

@media (max-width: 760px) {
  .rb-nav {
    gap: 8px;
  }
  .rb-brand-name {
    font-size: 14px;
  }
  .rb-active-project-name {
    max-width: 140px;
    font-size: 14px;
  }
  .rb-tab {
    min-width: auto;
    padding: 0 11px;
    font-size: 13px;
  }
}

@media (max-width: 560px) {
  .rb-project-code {
    display: none;
  }
  .rb-tab {
    width: 38px;
  }
}

/* ---------- Project home cinematic pass ---------- */

.rb-tabs[hidden] {
  display: none !important;
}

.rb-main:has(> .rb-landing.rb-landing--active-project) {
  max-width: none;
  width: 100%;
  min-height: calc(100vh - 48px - 36px);
  padding: 0;
  margin: 0;
}

.rb-landing--active-project {
  min-height: calc(100vh - 48px - 36px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 64px 32px 96px;
  position: relative;
}

.rb-landing--active-project::before,
.rb-landing--empty-project::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(
    ellipse 70% 50% at 50% 35%,
    color-mix(in oklab, var(--accent) 15%, transparent),
    transparent 65%
  );
  z-index: 0;
}

html[data-theme="light"] .rb-landing--active-project::before,
html[data-theme="light"] .rb-landing--empty-project::before {
  background: radial-gradient(
    ellipse 70% 50% at 50% 35%,
    color-mix(in oklab, var(--accent) 28%, transparent),
    transparent 70%
  );
}

.rb-landing--active-project > *,
.rb-landing--empty-project > * {
  position: relative;
  z-index: 1;
}

.rb-landing--active-project .rb-landing-head,
.rb-landing--active-project .rb-landing-tip,
.rb-landing--active-project #rb-dashboard-save {
  display: none;
}

.rb-landing--active-project .rb-project-dashboard {
  width: min(760px, calc(100vw - 64px));
  margin: 0 auto;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.rb-landing--active-project .rb-project-dashboard-main {
  display: block;
}

.rb-landing--active-project .rb-project-dashboard-title {
  margin: 8px 0 0;
  font-size: 52px;
  line-height: 1;
  font-weight: 800;
  letter-spacing: 0;
}

.rb-progress-rail {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(18px, 1fr));
  gap: 4px;
  width: min(620px, 100%);
  margin: 20px 0 8px;
}

.rb-progress-segment {
  height: 3px;
  border-radius: 999px;
  background: color-mix(in oklab, var(--ink-4) 26%, transparent);
}

.rb-progress-segment--balanced {
  background: var(--ok);
}

.rb-progress-segment--attention {
  background: var(--warn);
}

.rb-progress-segment--pending {
  background: color-mix(in oklab, var(--accent) 18%, transparent);
}

.rb-landing--active-project .rb-project-dashboard-sub {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-3);
}

.rb-landing--active-project .rb-project-dashboard-actions {
  margin-top: 28px;
}

.rb-landing--active-project #rb-dashboard-resume {
  height: 40px;
  padding: 0 22px;
  border-radius: 8px;
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.rb-landing--active-project #rb-dashboard-resume::after {
  content: " ->";
}

.rb-landing--active-project .rb-project-actions {
  position: fixed;
  right: 32px;
  bottom: 52px;
  display: flex;
  grid-template-columns: none;
  gap: 8px;
  margin: 0;
  z-index: 5;
}

.rb-landing--active-project .rb-project-card {
  min-height: 0;
  min-width: 124px;
  padding: 9px 12px;
  border-style: dashed;
  border-radius: 7px;
  background: color-mix(in oklab, var(--paper-2) 78%, transparent);
}

.rb-landing--active-project .rb-project-card .rb-tool-glyph,
.rb-landing--active-project .rb-project-card .rb-tool-desc,
.rb-landing--active-project .rb-project-card .rb-tool-cta {
  display: none;
}

.rb-landing--active-project .rb-project-card .rb-tool-name {
  font-size: 12px;
  font-weight: 650;
}

.rb-landing--active-project .rb-recent {
  position: fixed;
  left: 32px;
  right: 220px;
  bottom: 52px;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 5;
}

.rb-landing--active-project .rb-recent[hidden] {
  display: none;
}

.rb-landing--active-project .rb-recent-head {
  margin: 0;
  flex: 0 0 auto;
}

.rb-landing--active-project .rb-recent-list {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: row;
  gap: 8px;
  overflow-x: auto;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.rb-landing--active-project .rb-recent-row {
  flex: 0 0 auto;
  padding: 6px 8px;
  gap: 8px;
  border: 1px solid var(--rule);
  border-radius: 7px;
  background: color-mix(in oklab, var(--paper-2) 76%, transparent);
}

.rb-landing--active-project .rb-recent-time,
.rb-landing--active-project .rb-recent-remove {
  display: none;
}

.rb-landing--active-project .rb-recent-name {
  max-width: 160px;
}

.rb-landing--active-project .rb-recent-open {
  padding: 2px 8px;
  font-size: 10.5px;
}

@media (max-width: 900px) {
  .rb-landing--active-project {
    justify-content: flex-start;
    padding-top: 72px;
  }

  .rb-landing--active-project .rb-project-dashboard {
    width: min(680px, calc(100vw - 40px));
  }

  .rb-landing--active-project .rb-project-dashboard-title {
    font-size: 40px;
  }

  .rb-landing--active-project .rb-project-actions,
  .rb-landing--active-project .rb-recent {
    position: static;
    width: min(680px, calc(100vw - 40px));
    margin: 24px auto 0;
  }

  .rb-landing--active-project .rb-project-actions {
    justify-content: flex-start;
  }
}

/* ---------- Header project switcher ---------- */

.rb-active-project {
  position: relative;
  overflow: visible;
}

button.rb-project-crumb {
  appearance: none;
  font: inherit;
  cursor: pointer;
}

.rb-project-chevron {
  color: var(--nav-ink-4);
  font-size: 10px;
  line-height: 1;
  transition: transform 0.12s ease, color 0.12s ease;
}

.rb-project-crumb[aria-expanded="true"] .rb-project-chevron {
  transform: rotate(180deg);
  color: var(--nav-ink-2);
}

.rb-project-menu {
  position: absolute;
  top: 39px;
  left: 0;
  width: min(318px, calc(100vw - 24px));
  padding: 12px;
  border: 1px solid var(--rule);
  border-radius: 9px;
  background: color-mix(in oklab, var(--paper-2) 96%, transparent);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.26);
  z-index: 600;
}

.rb-project-menu[hidden] {
  display: none;
}

.rb-project-menu-head {
  margin: 2px 4px 8px;
}

.rb-project-menu-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.rb-project-menu-row {
  width: 100%;
  min-height: 46px;
  display: grid;
  grid-template-columns: 26px 1fr auto;
  align-items: center;
  gap: 10px;
  padding: 8px;
  border: 1px solid transparent;
  border-radius: 7px;
  background: transparent;
  color: var(--ink-2);
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.rb-project-menu-row:hover,
.rb-project-menu-row:focus-visible,
.rb-project-menu-row.active {
  outline: none;
  background: var(--chip);
  border-color: var(--rule-2);
  color: var(--ink);
}

.rb-project-menu-code {
  width: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  border: 1px solid var(--rule);
  background: color-mix(in oklab, var(--accent) 14%, var(--paper-2));
  color: color-mix(in oklab, var(--accent) 82%, white);
  font-size: 10px;
  font-weight: 750;
}

.rb-project-menu-copy {
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.rb-project-menu-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--ink);
  font-size: 12px;
  font-weight: 750;
}

.rb-project-menu-meta {
  color: var(--ink-4);
  font-size: 10px;
}

.rb-project-menu-open {
  color: var(--accent);
  font-size: 9px;
  font-weight: 750;
}

.rb-project-menu-actions {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
  padding-top: 10px;
  margin-top: 10px;
  border-top: 1px solid var(--rule);
}

.rb-project-menu-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 30px;
  padding: 0 8px;
  border: 1px solid var(--rule);
  border-radius: 7px;
  background: var(--paper);
  color: var(--ink-2);
  font: inherit;
  font-size: 11.5px;
  font-weight: 700;
  line-height: 1;
  white-space: nowrap;
  cursor: pointer;
}

.rb-project-menu-action:hover,
.rb-project-menu-action:focus-visible {
  outline: none;
  border-color: var(--ink-4);
  color: var(--ink);
}

.rb-project-menu-action.primary {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

@media (max-width: 340px) {
  .rb-project-menu-actions {
    grid-template-columns: 1fr;
  }
}

.rb-project-menu-empty {
  padding: 12px 8px;
  color: var(--ink-3);
  font-size: 12px;
}

/* ---------- Active Home footer controls ---------- */

.rb-landing--active-project .rb-recent {
  display: none !important;
}

.rb-landing--active-project .rb-landing-tip {
  display: block;
  position: fixed;
  left: 32px;
  bottom: 58px;
  margin: 0;
  max-width: min(560px, calc(100vw - 280px));
  color: var(--ink-4);
  font-size: 11.5px;
  z-index: 4;
}

.rb-landing--active-project .rb-landing-tip p {
  margin: 0;
}

.rb-landing--active-project .rb-landing-tip-divider {
  display: none;
}

.rb-landing--active-project #rb-load-project-btn {
  display: none;
}

.rb-landing--active-project #rb-new-project-btn {
  min-width: 166px;
  border-style: solid;
}

.rb-landing--active-project #rb-new-project-btn .rb-tool-name::before {
  content: "+ ";
  color: var(--accent);
}

@media (max-width: 900px) {
  .rb-landing--active-project .rb-landing-tip {
    position: static;
    width: min(680px, calc(100vw - 40px));
    max-width: none;
    margin: 24px auto 0;
  }
}

/* ---------- Empty Home launch state ---------- */

.rb-main:has(> .rb-landing.rb-landing--empty-project) {
  max-width: none;
  width: 100%;
  min-height: calc(100vh - 48px - 36px);
  padding: 0;
  margin: 0;
}

.rb-landing--empty-project {
  min-height: calc(100vh - 48px - 36px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 64px 32px 108px;
  position: relative;
}

.rb-landing--empty-project .rb-landing-head {
  width: min(640px, calc(100vw - 64px));
  margin: 0 0 26px;
  gap: 12px;
  align-items: center;
  text-align: center;
}

.rb-landing--empty-project .rb-landing-title {
  font-size: 44px;
  line-height: 1;
  font-weight: 800;
  letter-spacing: 0;
}

.rb-landing--empty-project .rb-landing-sub {
  max-width: 520px;
  color: var(--ink-3);
}

.rb-landing--empty-project .rb-project-actions {
  width: min(640px, calc(100vw - 64px));
  display: flex;
  grid-template-columns: none;
  justify-content: center;
  gap: 10px;
  margin: 0;
}

.rb-landing--empty-project .rb-project-card {
  min-height: 42px;
  width: auto;
  min-width: 136px;
  display: inline-flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 0 16px;
  border-radius: 8px;
  text-align: center;
}

.rb-landing--empty-project .rb-project-card .rb-tool-glyph {
  width: 20px;
  height: 20px;
  margin: 0;
  border-radius: 6px;
}

.rb-landing--empty-project .rb-project-card .rb-tool-glyph svg {
  width: 13px;
  height: 13px;
}

.rb-landing--empty-project .rb-project-card .rb-tool-name {
  font-size: 13px;
  font-weight: 750;
}

.rb-landing--empty-project .rb-project-card .rb-tool-desc,
.rb-landing--empty-project .rb-project-card .rb-tool-cta {
  display: none;
}

.rb-landing--empty-project #rb-new-project-btn {
  background: var(--accent);
  border-color: var(--accent);
  color: white;
}

.rb-landing--empty-project #rb-new-project-btn .rb-tool-glyph {
  background: rgba(255, 255, 255, 0.12);
  color: white;
}

.rb-landing--empty-project #rb-load-project-btn {
  background: color-mix(in oklab, var(--paper-2) 82%, transparent);
}

.rb-landing--empty-project .rb-recent {
  position: fixed;
  left: 32px;
  right: 220px;
  bottom: 58px;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 10px;
  z-index: 4;
}

.rb-landing--empty-project .rb-recent[hidden] {
  display: none;
}

.rb-landing--empty-project .rb-recent-head {
  margin: 0;
  flex: 0 0 auto;
}

.rb-landing--empty-project .rb-recent-list {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: row;
  gap: 8px;
  overflow-x: auto;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.rb-landing--empty-project .rb-recent-row {
  flex: 0 0 auto;
  padding: 6px 8px;
  gap: 8px;
  border: 1px solid var(--rule);
  border-radius: 7px;
  background: color-mix(in oklab, var(--paper-2) 78%, transparent);
}

.rb-landing--empty-project .rb-recent-time,
.rb-landing--empty-project .rb-recent-remove {
  display: none;
}

.rb-landing--empty-project .rb-recent-name {
  max-width: 160px;
}

.rb-landing--empty-project .rb-recent-open {
  padding: 2px 8px;
  font-size: 10.5px;
}

.rb-landing--empty-project .rb-landing-tip {
  position: fixed;
  left: 32px;
  bottom: 28px;
  margin: 0;
  color: var(--ink-4);
  font-size: 11px;
}

.rb-landing--empty-project .rb-landing-tip p {
  margin: 0;
}

.rb-landing--empty-project .rb-landing-tip-divider {
  display: none;
}

@media (max-width: 900px) {
  .rb-landing--empty-project {
    align-items: flex-start;
    justify-content: flex-start;
    padding: 72px 20px 36px;
  }

  .rb-landing--empty-project .rb-landing-head,
  .rb-landing--empty-project .rb-project-actions {
    width: min(680px, calc(100vw - 40px));
    margin-left: auto;
    margin-right: auto;
  }

  .rb-landing--empty-project .rb-landing-title {
    font-size: 36px;
  }

  .rb-landing--empty-project .rb-recent,
  .rb-landing--empty-project .rb-landing-tip {
    position: static;
    width: min(680px, calc(100vw - 40px));
    margin: 24px auto 0;
  }
}