/* ─────────────────────────── tokens ─────────────────────────── */
:root {
  --bg: #f6f6f4;
  --surface: #ffffff;
  --surface-2: #fbfbfa;
  --sunken: #f0efec;
  --border: #e3e1dc;
  --border-strong: #d0cdc6;
  --text: #1c1b19;
  --text-dim: #6b6862;
  --text-faint: #948f86;
  --accent: #d97706;
  --accent-text: #ffffff;
  --accent-soft: #fdf3e3;
  --accent-border: #f0d9ae;
  --warn-bg: #fff8e6;
  --warn-border: #ecd28a;
  --warn-text: #7a5510;
  --danger: #b42318;
  --term-bg: #1c1b19;
  --term-text: #e9e6df;
  --term-flag: #f0b459;
  --term-val: #9fd0a8;
  --term-cmd: #8fbcf5;
  --radius: 10px;
  --radius-sm: 7px;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.04), 0 4px 12px rgba(0, 0, 0, 0.04);
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, "Helvetica Neue", Arial, sans-serif;
  color-scheme: light;
}

:root[data-theme="dark"] {
  --bg: #121211;
  --surface: #1b1b1a;
  --surface-2: #201f1e;
  --sunken: #161615;
  --border: #302f2d;
  --border-strong: #43413e;
  --text: #eceae5;
  --text-dim: #a29d95;
  --text-faint: #7b756c;
  --accent: #f0a93c;
  --accent-text: #1c1b19;
  --accent-soft: #2a2318;
  --accent-border: #4a3c22;
  --warn-bg: #2a2318;
  --warn-border: #57451f;
  --warn-text: #e8c583;
  --danger: #f0705f;
  --term-bg: #0e0e0d;
  --term-text: #e9e6df;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 4px 14px rgba(0, 0, 0, 0.25);
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 7.5rem;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 15px/1.55 var(--sans);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
}

code {
  font-family: var(--mono);
  font-size: 0.88em;
  background: var(--sunken);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 0.08em 0.34em;
  white-space: nowrap;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.skip-link {
  position: absolute;
  left: -9999px;
}
.skip-link:focus {
  left: 1rem;
  top: 1rem;
  z-index: 100;
  background: var(--surface);
  padding: 0.6rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
}

/* ─────────────────────────── topbar ─────────────────────────── */
.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 1.5rem;
  background: color-mix(in srgb, var(--surface) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.topbar__brand {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  min-width: 0;
}

/* The LeRobot wordmark is black-on-transparent, so on a dark ground it needs a
 * light plate rather than a filter — inverting would ruin the orange mark. */
.logo {
  display: block;
  height: 40px;
  width: auto;
  /* The source PNG carries generous transparent padding; reclaim some of it. */
  margin: -7px -4px;
}
:root[data-theme="dark"] .logo {
  background: #fff;
  border-radius: 7px;
  padding: 2px 6px;
  margin: -5px 0;
}

.topbar h1 {
  margin: 0;
  font-size: 1.02rem;
  font-weight: 650;
  letter-spacing: -0.01em;
}

.topbar__sub {
  margin: 0.1rem 0 0;
  font-size: 0.8rem;
  color: var(--text-dim);
}

.topbar__actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
}

.saved-pill {
  font-size: 0.74rem;
  color: var(--text-dim);
  background: var(--sunken);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.22rem 0.6rem;
  transition: color 0.2s, border-color 0.2s;
}
.saved-pill[data-state="saved"] {
  color: var(--accent);
  border-color: var(--accent-border);
}
.saved-pill[data-state="blocked"] {
  color: var(--warn-text);
  background: var(--warn-bg);
  border-color: var(--warn-border);
}

/* ─────────────────────────── layout ─────────────────────────── */
.layout {
  display: grid;
  grid-template-columns: 330px minmax(0, 1fr);
  gap: 1.15rem;
  max-width: 1520px;
  margin: 0 auto;
  padding: 1.15rem;
  align-items: start;
}

.sidebar {
  position: sticky;
  top: 4.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  max-height: calc(100vh - 6.2rem);
  overflow-y: auto;
  padding-right: 0.35rem;
  scrollbar-width: thin;
}

.steps {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  min-width: 0;
}

/* ─────────────────────────── panels ─────────────────────────── */
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.8rem 0.9rem 0.9rem;
  box-shadow: var(--shadow);
}

.panel--profiles {
  border-color: var(--accent-border);
  background: linear-gradient(var(--accent-soft), var(--surface) 70%);
}

.panel__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

.panel__title {
  margin: 0 0 0.15rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.panel__hint {
  margin: 0 0 0.7rem;
  font-size: 0.78rem;
  line-height: 1.45;
  color: var(--text-dim);
}

.type-note {
  margin: -0.2rem 0 0.75rem;
  font-size: 0.76rem;
  line-height: 1.45;
  color: var(--text-dim);
}
.type-note:empty {
  display: none;
}

/* ─────────────────────────── form ─────────────────────────── */
.field {
  display: block;
  margin-bottom: 0.6rem;
}
.field:last-child {
  margin-bottom: 0;
}

.field__label {
  display: block;
  font-size: 0.78rem;
  font-weight: 550;
  color: var(--text);
  margin-bottom: 0.28rem;
}

.field__hint {
  display: block;
  margin-top: 0.28rem;
  font-size: 0.74rem;
  line-height: 1.45;
  color: var(--text-faint);
}
.field__hint code {
  font-size: 0.92em;
  white-space: normal;
}

input[type="text"],
input[type="number"],
select {
  width: 100%;
  font: inherit;
  font-size: 0.85rem;
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 0.44rem 0.55rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}

input[type="text"],
input[type="number"] {
  font-family: var(--mono);
  font-size: 0.8rem;
}

select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--text-dim) 50%),
    linear-gradient(135deg, var(--text-dim) 50%, transparent 50%);
  background-position: calc(100% - 15px) 51%, calc(100% - 10px) 51%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
  padding-right: 1.8rem;
  cursor: pointer;
}

input:focus-visible,
select:focus-visible,
button:focus-visible,
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

input::placeholder {
  color: var(--text-faint);
}

.check {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: 0.81rem;
  line-height: 1.4;
  margin-bottom: 0.45rem;
  cursor: pointer;
}
.check:last-child {
  margin-bottom: 0;
}
.check input {
  margin: 0.18rem 0 0;
  accent-color: var(--accent);
  flex-shrink: 0;
}
.check code {
  white-space: normal;
}

.check-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.25rem;
  margin: 0.35rem 0 0.55rem;
}
.check-row .check {
  margin-bottom: 0;
}

/* buttons */
.btn {
  font: inherit;
  font-size: 0.82rem;
  font-weight: 550;
  color: var(--text);
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  padding: 0.36rem 0.7rem;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, transform 0.06s;
  white-space: nowrap;
}
.btn:hover {
  background: var(--sunken);
  border-color: var(--text-faint);
}
.btn:active {
  transform: translateY(1px);
}
.btn--sm {
  font-size: 0.76rem;
  padding: 0.28rem 0.55rem;
}
.btn--ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--text-dim);
}
.btn--danger:hover {
  color: var(--danger);
  border-color: var(--danger);
}
/* Leading "use the value from the previous step" buttons. */
.btn--fill {
  background: var(--accent-soft);
  border-color: var(--accent-border);
  color: var(--text);
  flex-shrink: 0;
}
.btn--fill:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-text);
}

.btn--accent {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-text);
  text-decoration: none;
  display: inline-block;
}
.btn--accent:hover {
  filter: brightness(1.06);
  background: var(--accent);
  border-color: var(--accent);
}
.btn[disabled] {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin-top: 0.6rem;
}
.btn-row--tight {
  margin-top: 0.35rem;
  padding-top: 0.55rem;
  border-top: 1px solid var(--border);
}

/* cameras */
.camera-list {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.camera {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.6rem;
}

.camera__top {
  display: flex;
  gap: 0.35rem;
  align-items: center;
  margin-bottom: 0.4rem;
}
.camera__top input {
  flex: 1;
  min-width: 0;
}

.camera__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.35rem;
}
.camera__grid select {
  grid-column: 1 / -1;
}

.camera__x {
  border: none;
  background: none;
  color: var(--text-faint);
  font-size: 1.05rem;
  line-height: 1;
  padding: 0.1rem 0.3rem;
  cursor: pointer;
  border-radius: 4px;
  flex-shrink: 0;
}
.camera__x:hover {
  color: var(--danger);
  background: var(--sunken);
}

.camera-empty {
  font-size: 0.78rem;
  color: var(--text-faint);
  font-style: italic;
}

/* ─────────────────────────── step nav ─────────────────────────── */
.stepnav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.35rem;
  box-shadow: var(--shadow);
  position: sticky;
  top: 4.6rem;
  z-index: 20;
}

.stepnav a {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  text-decoration: none;
  color: var(--text-dim);
  font-size: 0.81rem;
  font-weight: 550;
  line-height: 1.35;
  padding: 0.36rem 0.7rem;
  border-radius: 999px;
  white-space: nowrap;
  transition: background 0.15s, color 0.15s;
}
.stepnav a:hover {
  background: var(--sunken);
  color: var(--text);
}
.stepnav a.is-active {
  background: var(--accent);
  color: var(--accent-text);
}

.stepnav b {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 1.2rem;
  height: 1.2rem;
  border-radius: 50%;
  background: var(--sunken);
  border: 1px solid var(--border-strong);
  font-size: 0.7rem;
  font-weight: 700;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.stepnav a.is-active b {
  background: var(--accent-text);
  border-color: transparent;
  color: var(--accent);
}

/* ─────────────────────────── prerequisites ─────────────────────────── */
.prereq {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.7rem 1rem 0.75rem;
  box-shadow: var(--shadow);
}

.prereq__lead {
  margin: 0 0 0.4rem;
  font-size: 0.81rem;
  color: var(--text-dim);
}
.prereq__lead strong {
  color: var(--text);
  font-weight: 600;
}

.prereq__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0;
}
.prereq__links a {
  font-size: 0.78rem;
  font-weight: 550;
  text-decoration: none;
  color: var(--text);
  background: var(--sunken);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: 0.22rem 0.65rem;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.prereq__links a:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-text);
}
.prereq__links a[hidden] {
  display: none;
}

.prereq__extra {
  margin: 0.5rem 0 0;
  font-size: 0.76rem;
  color: var(--text-faint);
}
.prereq__extra:empty {
  display: none;
}
.prereq__extra code {
  white-space: normal;
}

/* ─────────────────────────── warnings ─────────────────────────── */
.warnings {
  background: var(--warn-bg);
  border: 1px solid var(--warn-border);
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  color: var(--warn-text);
  font-size: 0.84rem;
}
.warnings ul {
  margin: 0;
  padding-left: 1.15rem;
}
.warnings li + li {
  margin-top: 0.25rem;
}
.warnings code {
  background: color-mix(in srgb, var(--warn-text) 12%, transparent);
  border-color: var(--warn-border);
  color: inherit;
}

/* ─────────────────────────── steps ─────────────────────────── */
.step {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.step__head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.78rem 1.1rem;
  border-bottom: 1px solid var(--border);
  background: var(--surface-2);
}

.step__num {
  display: grid;
  place-items: center;
  width: 1.9rem;
  height: 1.9rem;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-text);
  font-size: 0.88rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.step__title {
  margin: 0;
  font-size: 1rem;
  font-weight: 640;
  letter-spacing: -0.01em;
}

.step__sub {
  margin: 0.12rem 0 0;
  font-size: 0.82rem;
  color: var(--text-dim);
}

.step__body {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
}

.step__main {
  padding: 0.95rem 1.1rem 1.05rem;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.step__aside {
  padding: 0.95rem 1.1rem;
  border-left: 1px solid var(--border);
  background: var(--sunken);
  font-size: 0.79rem;
  line-height: 1.5;
  color: var(--text-dim);
}

.step__aside h3 {
  margin: 0.85rem 0 0.3rem;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
}
.step__aside h3:first-child {
  margin-top: 0;
}
.step__aside p {
  margin: 0 0 0.5rem;
}
.step__aside ul,
.step__aside ol {
  margin: 0 0 0.5rem;
  padding-left: 1.05rem;
}
.step__aside li + li {
  margin-top: 0.22rem;
}
.step__aside strong {
  color: var(--text);
  font-weight: 600;
}
.step__aside code {
  white-space: normal;
  word-break: break-word;
}

.doclinks {
  list-style: none;
  padding: 0 !important;
}
.doclinks a {
  text-decoration: none;
  font-weight: 550;
}
.doclinks a:hover {
  text-decoration: underline;
}
.doclinks li[hidden],
.doclinks a[hidden] {
  display: none;
}

.sub-head {
  margin: 0.5rem 0 -0.15rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--text-dim);
}

.inline-fields {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(135px, 1fr));
  gap: 0.5rem 0.7rem;
}
.field--inline {
  margin-bottom: 0;
}
.field--tight {
  margin: 0.5rem 0 0;
}
.field--wide {
  grid-column: 1 / -1;
}

.repo-input {
  display: flex;
  align-items: stretch;
  gap: 0.3rem;
}
.repo-input input {
  /* Never let the step-forward button squeeze the field below readable width;
   * the row wraps instead, putting the button on its own line. */
  flex: 1 1 11rem;
  min-width: 0;
}
.repo-input:has(.btn--fill) {
  flex-wrap: wrap;
}
.repo-input .btn--fill {
  flex: 0 0 auto;
}
.repo-input__prefix {
  display: grid;
  place-items: center;
  padding: 0 0.5rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  color: var(--text-dim);
  background: var(--sunken);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  white-space: nowrap;
  max-width: 45%;
  overflow: hidden;
  text-overflow: ellipsis;
}

.link-row {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  flex-wrap: wrap;
}
.link-row__note {
  font-size: 0.78rem;
  color: var(--text-dim);
}

/* ─────────────────────────── command blocks ─────────────────────────── */
.cmd {
  display: flex;
  flex-direction: column;
}
.cmd:empty {
  display: none;
}

.cmd__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  padding: 0.4rem 0.7rem 0.4rem 0.85rem;
  background: var(--surface-2);
  border: 1px solid var(--border-strong);
  border-bottom: none;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

.cmd__label {
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-dim);
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.cmd__copy {
  font: inherit;
  font-size: 0.74rem;
  font-weight: 600;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border-strong);
  border-radius: 5px;
  padding: 0.2rem 0.55rem;
  cursor: pointer;
  flex-shrink: 0;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}
.cmd__copy:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-text);
}
.cmd__copy.is-copied {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-text);
}

.cmd__pre {
  margin: 0;
  padding: 0.65rem 0.85rem;
  background: var(--term-bg);
  color: var(--term-text);
  border: 1px solid var(--term-bg);
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  font-family: var(--mono);
  font-size: 0.78rem;
  line-height: 1.5;
  overflow-x: auto;
  white-space: pre;
  tab-size: 2;
}

.cmd__pre .t-cmd {
  color: var(--term-cmd);
  font-weight: 600;
}
.cmd__pre .t-flag {
  color: var(--term-flag);
}
.cmd__pre .t-val {
  color: var(--term-val);
}
.cmd__pre .t-comment {
  color: #8a857c;
  font-style: italic;
}

.cmd__note {
  margin: 0.32rem 0 0;
  font-size: 0.78rem;
  line-height: 1.5;
  color: var(--text-dim);
}
.cmd__note code {
  white-space: normal;
}

.cmd--muted .cmd__pre {
  opacity: 0.55;
}

/* ─────────────────────────── toast ─────────────────────────── */
.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 60;
  background: var(--term-bg);
  color: var(--term-text);
  font-size: 0.83rem;
  font-weight: 550;
  padding: 0.55rem 1.1rem;
  border-radius: 999px;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.28);
  animation: toast-in 0.18s ease-out;
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translate(-50%, 8px);
  }
}

/* ─────────────────────────── footer ─────────────────────────── */
.foot {
  padding: 0.5rem 0.25rem 1.5rem;
  font-size: 0.79rem;
  color: var(--text-faint);
}
.foot p {
  margin: 0 0 0.35rem;
}
.foot__privacy {
  color: var(--text-faint);
}

/* ─────────────────────────── responsive ─────────────────────────── */
@media (max-width: 1180px) {
  .step__body {
    grid-template-columns: minmax(0, 1fr);
  }
  .step__aside {
    border-left: none;
    border-top: 1px solid var(--border);
  }
}

@media (max-width: 900px) {
  .layout {
    grid-template-columns: minmax(0, 1fr);
    padding: 1rem;
    gap: 1rem;
  }
  .sidebar {
    position: static;
    max-height: none;
    overflow: visible;
    padding-right: 0;
  }
  .stepnav {
    top: 4.2rem;
    overflow-x: auto;
    border-radius: var(--radius);
  }
  .stepnav a {
    flex: 0 0 auto;
  }
  .topbar {
    padding: 0.7rem 1rem;
  }
  .topbar__sub {
    display: none;
  }
}

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

.btn--danger.is-armed {
  color: var(--accent-text);
  background: var(--danger);
  border-color: var(--danger);
}