:root {
  color-scheme: dark;
  --builder-bg: #0f141b;
  --builder-bg-soft: #121922;
  --builder-panel: #18212b;
  --builder-panel-strong: #1f2a36;
  --builder-panel-soft: #151d27;
  --builder-input: #101720;
  --builder-ink: #e7edf5;
  --builder-ink-strong: #f4f7fb;
  --builder-muted: #a8b3c2;
  --builder-subtle: #7f8b9a;
  --builder-line: #2a3543;
  --builder-line-soft: #22303d;
  --builder-blue: #8ab4ff;
  --builder-blue-strong: #5f9cff;
  --builder-green: #8fd694;
  --builder-green-strong: #48a868;
  --builder-gold: #d7b56d;
  --builder-red: #f28b82;
  --builder-focus: #8ab4ff;
  --builder-radius-xl: 24px;
  --builder-radius-lg: 18px;
  --builder-radius-md: 12px;
  --builder-radius-sm: 8px;
  --builder-shadow: 0 18px 54px rgba(4, 8, 14, 0.34);
  --builder-shadow-soft: 0 10px 30px rgba(4, 8, 14, 0.24);
  --builder-sans: var(--sans, -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans", Helvetica, Arial, sans-serif);
  --builder-mono: var(--mono, ui-monospace, SFMono-Regular, Menlo, Consolas, monospace);
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
}

body {
  min-height: 100vh;
  color: var(--builder-ink);
  background:
    radial-gradient(circle at 12% 0%, rgba(138, 180, 255, 0.09), transparent 22rem),
    radial-gradient(circle at 88% 8%, rgba(143, 214, 148, 0.07), transparent 28rem),
    linear-gradient(180deg, #111821 0%, #0f141b 52%, #0c1118 100%);
  font-family: var(--builder-sans);
}

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

button {
  cursor: pointer;
}

button:disabled {
  cursor: not-allowed;
}

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

h1,
h2,
h3 {
  color: var(--builder-ink-strong);
  letter-spacing: -0.02em;
}

h1 {
  margin-bottom: 0;
  font-size: clamp(2.1rem, 5.8vw, 4.8rem);
  line-height: 0.98;
}

h2 {
  margin-bottom: 0;
  font-size: clamp(1.25rem, 2vw, 1.8rem);
  line-height: 1.18;
}

h3 {
  margin-bottom: 0.45rem;
  font-size: 1rem;
}

p,
small {
  color: var(--builder-muted);
  line-height: 1.6;
}

.app-shell {
  min-height: calc(100vh - 4.875rem);
  padding: clamp(1rem, 2.4vw, 2rem);
}

.eyebrow,
.step-label,
.preview-label {
  margin: 0 0 0.55rem;
  color: var(--builder-blue);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.primary-action,
.ghost-action {
  display: inline-flex;
  min-height: 2.5rem;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border: 1px solid var(--builder-line);
  border-radius: var(--builder-radius-sm);
  padding: 0.65rem 1rem;
  font-size: 0.92rem;
  font-weight: 750;
  line-height: 1;
  text-decoration: none;
  transition:
    background-color 160ms ease,
    border-color 160ms ease,
    color 160ms ease,
    transform 160ms ease;
}

.primary-action {
  color: #ffffff;
  background: #2f7d4f;
  border-color: rgba(143, 214, 148, 0.36);
}

.primary-action:hover {
  background: #398a5a;
  text-decoration: none;
  transform: translateY(-1px);
}

.primary-action:disabled {
  color: var(--builder-subtle);
  background: var(--builder-panel-soft);
  border-color: var(--builder-line-soft);
  transform: none;
}

.ghost-action {
  color: var(--builder-ink);
  background: rgba(255, 255, 255, 0.035);
  border-color: var(--builder-line);
}

.ghost-action:hover {
  background: rgba(255, 255, 255, 0.065);
  border-color: #3a4654;
  text-decoration: none;
}

.primary-action span,
.ghost-action span {
  display: none;
}

.primary-action:focus-visible,
.ghost-action:focus-visible,
.editor-tabs a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
.info-button:focus-visible,
.file-action:focus-visible,
.type-option:focus-within {
  outline: 3px solid var(--builder-focus);
  outline-offset: 3px;
}

.launch-shell {
  display: grid;
  grid-template-columns: minmax(18rem, 0.9fr) minmax(0, 1.1fr);
  align-items: center;
  gap: clamp(1.5rem, 5vw, 4.5rem);
  max-width: 76rem;
  margin: 0 auto;
  padding: clamp(2.5rem, 7vh, 5rem) 0 clamp(2.5rem, 6vh, 4rem);
}

.launch-copy p:not(.eyebrow) {
  max-width: 45rem;
  margin: 1.25rem 0 1.75rem;
  color: var(--builder-muted);
  font-size: clamp(1.02rem, 1.7vw, 1.18rem);
}

.terminal-card {
  overflow: hidden;
  border: 1px solid var(--builder-line);
  border-radius: var(--builder-radius-xl);
  background:
    linear-gradient(180deg, rgba(31, 42, 54, 0.94), rgba(20, 28, 38, 0.96));
  box-shadow: var(--builder-shadow);
}

.terminal-titlebar,
.file-browser-bar {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  min-height: 3rem;
  border-bottom: 1px solid var(--builder-line-soft);
  padding: 0 1rem;
  color: var(--builder-muted);
  background: rgba(255, 255, 255, 0.025);
  font-size: 0.86rem;
}

.terminal-titlebar span,
.file-browser-bar span {
  display: none;
}

.terminal-titlebar strong,
.file-browser-bar strong {
  margin: 0;
  color: var(--builder-ink);
  font-family: var(--builder-sans);
  font-size: 0.88rem;
  font-weight: 800;
}

.terminal-body {
  display: grid;
  gap: 0.75rem;
  padding: clamp(1.15rem, 3vw, 1.65rem);
}

.terminal-body p {
  display: grid;
  grid-template-columns: 1.8rem 1fr;
  gap: 0.65rem;
  margin: 0;
  color: var(--builder-ink);
  font-family: var(--builder-sans);
}

.terminal-body span,
.command-log span,
.terminal-feed span {
  color: var(--builder-blue);
  font-family: var(--builder-mono);
  font-weight: 800;
}

.workbench {
  max-width: 96rem;
  margin: 0 auto;
}

.workbench-topbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.workbench-topbar h1 {
  font-size: clamp(2rem, 4vw, 3.25rem);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 0.65rem;
}

.run-state,
.status-chip {
  display: inline-flex;
  width: max-content;
  align-items: center;
  border: 1px solid rgba(143, 214, 148, 0.26);
  border-radius: 999px;
  padding: 0.45rem 0.75rem;
  color: var(--builder-green);
  background: rgba(143, 214, 148, 0.08);
  font-size: 0.74rem;
  font-weight: 850;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.workbench-grid {
  display: grid;
  grid-template-columns: minmax(13rem, 15rem) minmax(0, 1fr) minmax(20rem, 31rem);
  gap: 1rem;
  align-items: start;
}

.command-rail,
.editor-panel,
.preview-panel,
.export-bar,
.document-preview,
.quality-standard-card,
.success-panel,
.assembly-copy,
.file-browser {
  border: 1px solid var(--builder-line);
  border-radius: var(--builder-radius-lg);
  background: rgba(24, 33, 43, 0.94);
  box-shadow: var(--builder-shadow-soft);
}

.command-rail {
  position: sticky;
  top: 1rem;
  overflow: hidden;
  padding: 1rem;
}

.command-rail .terminal-titlebar {
  min-height: auto;
  border: 0;
  padding: 0 0 0.7rem;
  background: transparent;
}

.command-rail ol {
  display: grid;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.command-rail li {
  display: grid;
  grid-template-columns: 2rem 1fr;
  gap: 0.7rem;
  align-items: center;
  padding: 0.55rem;
  border: 1px solid transparent;
  border-radius: var(--builder-radius-md);
  color: var(--builder-ink);
  background: rgba(255, 255, 255, 0.025);
}

.command-rail li strong {
  display: grid;
  width: 1.7rem;
  height: 1.7rem;
  place-items: center;
  border-radius: 999px;
  color: var(--builder-bg);
  background: var(--builder-blue);
  font-size: 0.72rem;
  font-weight: 900;
}

.command-rail li span {
  color: var(--builder-ink);
  font-size: 0.86rem;
  font-weight: 760;
}

.command-log {
  display: grid;
  gap: 0.45rem;
  margin-top: 1rem;
  border-top: 1px solid var(--builder-line-soft);
  padding-top: 1rem;
}

.command-log p {
  display: grid;
  grid-template-columns: 2rem 1fr;
  gap: 0.5rem;
  margin: 0;
  color: var(--builder-muted);
  font-family: var(--builder-sans);
  font-size: 0.8rem;
  line-height: 1.35;
}

.command-log span {
  color: var(--builder-green);
  font-size: 0.75rem;
}

.editor-panel {
  overflow: hidden;
}

.editor-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  border-bottom: 1px solid var(--builder-line-soft);
  padding: 0.7rem 0.75rem 0;
  background: rgba(255, 255, 255, 0.02);
}

.editor-tabs a {
  border: 1px solid transparent;
  border-radius: var(--builder-radius-sm) var(--builder-radius-sm) 0 0;
  padding: 0.65rem 0.9rem;
  color: var(--builder-muted);
  font-size: 0.86rem;
  font-weight: 800;
  text-decoration: none;
}

.editor-tabs .is-active {
  color: var(--builder-ink-strong);
  background: var(--builder-panel);
  border-color: var(--builder-line);
  border-bottom-color: var(--builder-panel);
}

.editor-section {
  padding: clamp(1.1rem, 2vw, 1.45rem);
  border-bottom: 1px solid var(--builder-line-soft);
  background: var(--builder-panel);
  scroll-margin-top: 1rem;
}

.editor-section:last-child {
  border-bottom: 0;
}

.section-heading {
  display: grid;
  gap: 0.15rem;
  margin-bottom: 1rem;
}

.type-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.8rem;
}

.type-option {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.75rem;
  align-items: start;
  min-height: 5.5rem;
  border: 1px solid var(--builder-line);
  border-radius: var(--builder-radius-md);
  padding: 0.95rem;
  background: rgba(255, 255, 255, 0.025);
  transition: border-color 150ms ease, background-color 150ms ease, transform 150ms ease;
}

.type-option input {
  position: absolute;
  inset: 0;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.type-option input:focus-visible {
  outline: 0;
}

.type-option input:focus-visible + .type-card-label {
  outline: 3px solid var(--builder-focus);
  outline-offset: 3px;
}

.type-card-label {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.75rem;
  align-items: start;
  cursor: pointer;
}

.type-option strong {
  display: block;
  margin-bottom: 0.18rem;
  color: var(--builder-ink-strong);
}

.type-option small {
  display: block;
  color: var(--builder-muted);
}

.type-option:hover,
.type-option.is-selected {
  border-color: rgba(138, 180, 255, 0.7);
  background: rgba(138, 180, 255, 0.07);
  transform: translateY(-1px);
}

.type-mark {
  display: grid;
  min-width: 4.35rem;
  min-height: 1.65rem;
  place-items: center;
  border-radius: 999px;
  color: #111821;
  background: var(--builder-blue);
  font-size: 0.72rem;
  font-weight: 900;
  padding: 0 0.55rem;
}

.type-option:nth-child(2) .type-mark {
  color: #ffffff;
  background: #8d7cff;
}

.type-option:nth-child(3) .type-mark {
  background: var(--builder-gold);
}

.type-option:nth-child(4) .type-mark {
  background: var(--builder-green);
}

.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.95rem;
}

.field {
  display: grid;
  gap: 0.38rem;
}

.field-label-row {
  position: relative;
  display: flex;
  align-items: center;
  gap: 0.45rem;
}

.field-label-row label,
.check-row span {
  color: var(--builder-ink-strong);
  font-size: 0.9rem;
  font-weight: 780;
}

.info-button {
  display: inline-grid;
  width: 1.35rem;
  height: 1.35rem;
  flex: 0 0 auto;
  place-items: center;
  border: 1px solid var(--builder-line);
  border-radius: 999px;
  padding: 0;
  color: var(--builder-blue);
  background: rgba(138, 180, 255, 0.08);
  font-size: 0.76rem;
  font-weight: 900;
  line-height: 1;
}

.info-button[aria-expanded="true"] {
  border-color: rgba(138, 180, 255, 0.56);
  color: var(--builder-ink-strong);
  background: rgba(138, 180, 255, 0.16);
}

.field-tooltip {
  position: relative;
  z-index: 4;
  max-width: 42rem;
  margin: 0.15rem 0 0.2rem;
  border: 1px solid rgba(138, 180, 255, 0.24);
  border-radius: var(--builder-radius-md);
  padding: 0.72rem 0.8rem;
  color: var(--builder-ink);
  background: #202b37;
  box-shadow: var(--builder-shadow-soft);
  font-size: 0.84rem;
  line-height: 1.45;
}

.field-tooltip[hidden] {
  display: none;
}

.type-tooltip {
  grid-column: 1 / -1;
  margin-top: -0.2rem;
}

.field small {
  color: var(--builder-subtle);
  font-size: 0.8rem;
}

input,
select,
textarea {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--builder-line);
  border-radius: var(--builder-radius-sm);
  color: var(--builder-ink-strong);
  background: var(--builder-input);
  box-shadow: none;
  caret-color: var(--builder-blue);
  padding: 0.8rem 0.85rem;
  font-family: var(--builder-sans);
  font-size: 0.95rem;
  line-height: 1.45;
}

input:hover,
select:hover,
textarea:hover {
  border-color: #3a4654;
}

select {
  appearance: none;
  background-image:
    linear-gradient(45deg, transparent 50%, var(--builder-muted) 50%),
    linear-gradient(135deg, var(--builder-muted) 50%, transparent 50%);
  background-position:
    calc(100% - 1rem) 50%,
    calc(100% - 0.72rem) 50%;
  background-size: 0.32rem 0.32rem, 0.32rem 0.32rem;
  background-repeat: no-repeat;
  padding-right: 2.2rem;
}

input::placeholder,
textarea::placeholder {
  color: var(--builder-subtle);
}

textarea {
  resize: vertical;
}

.field.is-disabled {
  opacity: 0.62;
}

.field.is-disabled input,
.field.is-disabled textarea {
  cursor: not-allowed;
}

.wide-field {
  grid-column: 1 / -1;
}

.check-row {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  margin-bottom: 0;
}

.check-row input {
  width: 1.05rem;
  height: 1.05rem;
  accent-color: var(--builder-blue);
}

.preview-panel {
  position: sticky;
  top: 1rem;
  max-height: calc(100vh - 2rem);
  overflow: auto;
  padding: 1rem;
}

.preview-header {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.9rem;
}

.preview-header h2 {
  overflow-wrap: anywhere;
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.5rem;
  margin-bottom: 0.9rem;
}

.metrics-grid div {
  border: 1px solid var(--builder-line-soft);
  border-radius: var(--builder-radius-md);
  padding: 0.72rem;
  background: rgba(255, 255, 255, 0.028);
}

.metrics-grid strong,
.metrics-grid span {
  display: block;
}

.metrics-grid strong {
  color: var(--builder-ink-strong);
  font-size: 1.28rem;
}

.metrics-grid span {
  color: var(--builder-muted);
  font-size: 0.73rem;
  font-weight: 780;
}

.quality-standard-card {
  margin-bottom: 0.9rem;
  padding: 0.95rem;
}

.quality-standard-card h3 {
  margin-bottom: 0.7rem;
}

.quality-standard-card ul {
  display: grid;
  gap: 0.55rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.quality-standard-card li {
  display: grid;
  gap: 0.16rem;
  border-left: 2px solid rgba(138, 180, 255, 0.72);
  padding-left: 0.7rem;
}

.quality-standard-card strong {
  color: var(--builder-ink-strong);
  font-size: 0.82rem;
}

.quality-standard-card span {
  color: var(--builder-muted);
  font-size: 0.78rem;
  line-height: 1.4;
}

.file-browser {
  overflow: hidden;
}

.file-browser-bar {
  justify-content: space-between;
}

.terminal-feed {
  max-height: 23rem;
  margin: 0;
  overflow: auto;
  padding: 0.9rem;
  color: var(--builder-ink);
  font-family: var(--builder-sans);
  font-size: 0.82rem;
  line-height: 1.55;
}

.terminal-feed > p {
  margin: 0.5rem 0;
  color: var(--builder-muted);
}

.terminal-feed ul {
  display: grid;
  gap: 0.26rem;
  margin: 0.8rem 0;
  padding: 0;
  list-style: none;
}

.live-file-row {
  display: grid;
  grid-template-columns: 2.2rem minmax(0, 1fr) auto;
  gap: 0.55rem;
  align-items: start;
  border: 1px solid transparent;
  border-radius: var(--builder-radius-sm);
  padding: 0.36rem 0.45rem;
  background: rgba(255, 255, 255, 0.022);
}

.live-file-row code {
  color: var(--builder-ink);
  overflow-wrap: anywhere;
  font-family: var(--builder-mono);
  font-size: 0.78rem;
}

.file-status {
  color: var(--builder-blue);
  font-weight: 900;
}

.file-status.written {
  color: var(--builder-green);
}

.file-status.removed {
  color: var(--builder-red);
}

.file-action {
  min-height: 1.75rem;
  border: 1px solid var(--builder-line);
  border-radius: var(--builder-radius-sm);
  padding: 0.26rem 0.55rem;
  color: var(--builder-ink);
  background: rgba(255, 255, 255, 0.035);
  font-family: var(--builder-sans);
  font-size: 0.72rem;
  font-weight: 720;
  line-height: 1;
}

.file-action:hover {
  border-color: rgba(138, 180, 255, 0.55);
  background: rgba(138, 180, 255, 0.1);
}

.remove-file {
  color: #ffc8c3;
}

.restore-file {
  color: #c6f6ca;
}

.feed-more {
  margin-bottom: 0;
  color: var(--builder-muted);
}

.feed-note {
  color: var(--builder-gold);
}

.feed-more.is-ready {
  color: var(--builder-blue);
}

.feed-more.is-warning {
  color: var(--builder-red);
}

.removed-files {
  margin-top: 0.8rem;
  border-top: 1px solid var(--builder-line-soft);
  padding-top: 0.7rem;
}

.cursor-line::after {
  content: "_";
  color: var(--builder-green);
  animation: blink 900ms steps(2, start) infinite;
}

.document-preview {
  margin-top: 0.9rem;
  padding: 0.95rem;
}

.document-preview p:last-child {
  margin-bottom: 0;
}

.export-bar {
  grid-column: 2 / 4;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem;
}

.export-bar > div strong,
.export-bar > div span {
  display: block;
}

.export-bar > div strong {
  color: var(--builder-ink-strong);
}

.export-bar > div span {
  color: var(--builder-muted);
  font-size: 0.9rem;
}

.success-panel {
  max-width: 54rem;
  margin: 8vh auto;
  overflow: hidden;
  padding: clamp(1.2rem, 4vw, 2rem);
}

.success-panel .terminal-titlebar {
  display: none;
}

.success-panel h1 {
  max-width: 16ch;
  overflow-wrap: anywhere;
}

.success-panel p {
  max-width: 42rem;
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1.3rem;
}

.assembly-shell {
  display: grid;
  grid-template-columns: minmax(18rem, 0.78fr) minmax(20rem, 1.22fr);
  align-items: center;
  gap: clamp(1rem, 3vw, 2rem);
  max-width: 88rem;
  margin: 0 auto;
  padding: clamp(2rem, 5vh, 3.5rem) 0 clamp(2.5rem, 6vh, 4rem);
}

.assembly-copy {
  padding: clamp(1rem, 3vw, 1.5rem);
}

.assembly-copy h1 {
  max-width: 12ch;
  overflow-wrap: anywhere;
}

.progress-wrap {
  height: 0.78rem;
  overflow: hidden;
  border: 1px solid var(--builder-line);
  border-radius: 999px;
  background: var(--builder-input);
}

.progress-wrap span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--builder-blue), var(--builder-green));
  transition: width 120ms ease;
}

.build-count {
  margin: 0.65rem 0 1rem;
  color: var(--builder-green);
  font-family: var(--builder-mono);
  font-size: 0.84rem;
  font-weight: 800;
}

.assembly-browser .terminal-feed {
  max-height: min(60vh, 34rem);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

@keyframes blink {
  50% {
    opacity: 0;
  }
}

@media (max-width: 1180px) {
  .workbench-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(18rem, 0.9fr);
  }

  .command-rail {
    position: static;
    grid-column: 1 / -1;
  }

  .command-rail ol {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .command-rail li {
    grid-template-columns: 1fr;
  }

  .command-log {
    display: none;
  }

  .preview-panel {
    position: sticky;
    top: 1rem;
  }

  .export-bar {
    grid-column: 1 / -1;
  }
}

@media (max-width: 860px) {
  .launch-shell,
  .assembly-shell {
    grid-template-columns: 1fr;
  }

  .launch-copy {
    order: -1;
  }
}

@media (max-width: 760px) {
  .workbench-grid {
    grid-template-columns: 1fr;
  }

  .preview-panel {
    position: static;
    max-height: none;
  }

  .export-bar {
    position: static;
  }
}

@media (max-width: 640px) {
  .app-shell {
    padding: 0.75rem;
  }

  .workbench-topbar,
  .export-bar {
    align-items: stretch;
    flex-direction: column;
  }

  .topbar-actions {
    justify-content: space-between;
  }

  .run-state,
  .command-rail {
    display: none;
  }

  .editor-tabs {
    flex-wrap: wrap;
    overflow: visible;
  }

  .editor-tabs a {
    flex: 1 1 calc(50% - 0.45rem);
    justify-content: center;
  }

  .type-list,
  .field-grid,
  .metrics-grid {
    grid-template-columns: 1fr;
  }

  .type-option {
    min-height: 0;
  }

  .primary-action,
  .ghost-action {
    width: 100%;
  }
}