/* Jarvis cabinet — light, business style.
   Used by /login.php, /lk/index.php, /lk/usecase.php.
   Independent from styles.css (which is the dark landing theme). */

:root {
  --c-bg: #f5f5f3;
  --c-surface: #ffffff;
  --c-surface-mute: #fafaf8;
  --c-border: #e6e5e1;
  --c-border-strong: #d6d5d0;
  --c-ink: #1a1a1a;
  --c-ink-soft: #3d3d3b;
  --c-muted: #7a7a76;

  --c-brand: #7c3aed;
  --c-brand-hover: #6d28d9;
  --c-brand-soft: #f1ebfe;
  --c-brand-ink: #5b21b6;
  --c-brand-border: #c4b5fd;

  --c-note-bg: #f1ebfe; --c-note-ink: #5b21b6; --c-note-bd: #c4b5fd;
  --c-warn-bg: #fdf6e7; --c-warn-ink: #92660b; --c-warn-bd: #e8d59a;
  --c-ok-bg:   #eaf6ee; --c-ok-ink:   #155a39; --c-ok-bd:   #bbe0c8;

  --c-radius: 14px;
  --c-radius-sm: 10px;

  --c-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, Consolas, monospace;
  --c-sans: "Inter", "Inter Variable", system-ui, -apple-system, "Segoe UI", sans-serif;
}

@font-face {
  font-family: "Inter Variable";
  font-weight: 400 700;
  font-display: swap;
  src: url("/fonts/InterVariable.woff2") format("woff2-variations");
}
@font-face {
  font-family: "JetBrains Mono";
  font-weight: 400 600;
  font-display: swap;
  src: url("/fonts/JetBrainsMono-Variable.woff2") format("woff2-variations");
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body.cab {
  background: var(--c-bg);
  color: var(--c-ink);
  font-family: var(--c-sans);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* ---------- Wordmark ---------- */
.cab-mark {
  display: inline-flex;
  align-items: baseline;
  gap: 0;
  font-family: var(--c-mono);
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--c-ink);
  text-decoration: none;
}
.cab-mark .mp { color: var(--c-brand); margin-right: 6px; }
.cab-mark .mc {
  display: inline-block;
  width: 0.55em;
  height: 0.16em;
  background: var(--c-brand);
  margin-left: 2px;
  transform: translateY(-0.05em);
  animation: cabBlink 1.05s steps(1) infinite;
}
@keyframes cabBlink { 0%, 49% { opacity: 1 } 50%, 100% { opacity: 0 } }
@media (prefers-reduced-motion: reduce) { .cab-mark .mc { animation: none; } }

/* ---------- Header ---------- */
.cab-header {
  height: 64px;
  background: var(--c-surface);
  border-bottom: 1px solid var(--c-border);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 32px;
  position: relative;
}
.cab-header .left  { justify-self: start; }
.cab-header .mid   { justify-self: center; font-size: 13px; color: var(--c-muted); letter-spacing: 0.02em; }
.cab-header .right { justify-self: end; display: flex; gap: 12px; align-items: center; }
.cab-header .who   { font-size: 13px; color: var(--c-ink-soft); }
.cab-logout {
  background: var(--c-surface);
  color: var(--c-ink-soft);
  border: 1px solid var(--c-border);
  border-radius: 8px;
  padding: 7px 14px;
  font-size: 13px;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: border-color .15s, background .15s, color .15s;
}
.cab-logout:hover { border-color: var(--c-brand-border); color: var(--c-brand-ink); background: var(--c-brand-soft); }

@media (max-width: 640px) {
  .cab-header { grid-template-columns: auto 1fr; padding: 0 16px; }
  .cab-header .mid { display: none; }
}

/* ---------- Buttons ---------- */
.cab-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 22px;
  border-radius: var(--c-radius-sm);
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  text-decoration: none;
  transition: background .15s, border-color .15s, color .15s, box-shadow .15s;
}
.cab-btn-primary {
  background: var(--c-brand);
  color: #fff;
  box-shadow: 0 1px 0 rgba(0,0,0,0.08);
}
.cab-btn-primary:hover { background: var(--c-brand-hover); }
.cab-btn-primary:disabled { opacity: 0.6; cursor: progress; }
.cab-btn-secondary {
  background: #fff;
  color: var(--c-ink);
  border-color: var(--c-border);
}
.cab-btn-secondary:hover { border-color: var(--c-brand-border); color: var(--c-brand-ink); }
.cab-btn-block { width: 100%; }
.cab-btn-ghost {
  background: transparent;
  color: var(--c-ink-soft);
  border-color: var(--c-border);
  font-weight: 500;
  padding: 10px 16px;
  font-size: 14px;
}
.cab-btn-ghost:hover { background: var(--c-surface); border-color: var(--c-border-strong); }

/* ---------- Chips ---------- */
.cab-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 9px;
  border-radius: 999px;
  line-height: 1;
  white-space: nowrap;
  border: 1px solid transparent;
}
.cab-chip-brand       { background: var(--c-brand-soft); color: var(--c-brand-ink); }
.cab-chip-soon        { background: #fff; color: var(--c-brand-ink); border-color: var(--c-brand-border); }
.cab-chip-gray        { background: #eeeeec; color: var(--c-ink-soft); }
.cab-chip-ready       { background: var(--c-brand-soft); color: var(--c-brand-ink); }
.cab-chip-outline     { background: #fff; color: var(--c-brand-ink); border-color: var(--c-brand-border); }
.cab-chip-start       { background: #eaf6ee; color: #155a39; }
.cab-chip-advanced    { background: #fdf3e7; color: #7c3800; }
.cab-chip-integration { background: #e8f0fe; color: #1a4aa8; }
.cab-chip-important   { background: #fde8e8; color: #8b1a1a; }
.cab-chip-tip         { background: #e8f8f4; color: #15614a; }

/* ---------- Login (two-col) ---------- */
.cab-login {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
}
.cab-login-main {
  flex: 1;
  display: grid;
  align-items: start;
  padding: 56px 32px 80px;
}
.cab-login-grid {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  align-items: start;
}
.cab-login-grid h1 {
  font-size: 38px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 0 0 14px;
}
.cab-login-grid .lead {
  margin: 0 0 28px;
  color: var(--c-muted);
  font-size: 16px;
  line-height: 1.6;
}
.cab-feat-list { list-style: none; padding: 0; margin: 0; }
.cab-feat-list li {
  padding: 14px 0;
  border-top: 1px solid var(--c-border);
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.cab-feat-list .dot {
  display: inline-block;
  width: 6px; height: 6px;
  border-radius: 999px;
  background: var(--c-brand);
  margin-top: 9px;
  flex-shrink: 0;
}
.cab-feat-list .body { flex: 1; min-width: 0; }
.cab-feat-list .title-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 2px;
  flex-wrap: wrap;
}
.cab-feat-list .feat-title { font-weight: 600; font-size: 15px; }
.cab-feat-list .feat-desc  { color: var(--c-muted); font-size: 14px; line-height: 1.5; }

.cab-login-card {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--c-radius);
  padding: 32px 32px 28px;
  position: sticky;
  top: 24px;
}
.cab-login-card h2 {
  font-size: 22px;
  font-weight: 700;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}
.cab-login-card .sub { margin: 0 0 18px; color: var(--c-muted); font-size: 14px; line-height: 1.55; }
.cab-login-card .chip-wrap { margin-bottom: 18px; }

/* Method tabs */
.cab-method-tabs {
  display: flex;
  gap: 4px;
  background: var(--c-bg);
  border-radius: var(--c-radius-sm);
  padding: 4px;
  margin-bottom: 22px;
}
.cab-tab {
  flex: 1;
  padding: 8px 10px;
  font-size: 13px;
  font-weight: 500;
  border: none;
  border-radius: calc(var(--c-radius-sm) - 2px);
  background: transparent;
  color: var(--c-muted);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
  font-family: inherit;
}
.cab-tab.active {
  background: var(--c-surface);
  color: var(--c-ink);
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
}

/* Code method */
.cab-code-instruction { margin-bottom: 16px; }
.cab-code-instruction p { margin: 0 0 10px; font-size: 14px; line-height: 1.5; color: var(--c-ink-soft); }
.cab-code-status-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 14px 0;
  font-size: 13px;
  color: var(--c-muted);
}
.cab-code-enter { margin-top: 18px; padding-top: 18px; border-top: 1px solid var(--c-border); }

/* Input fields in login card */
.cab-login-card .field { display: flex; flex-direction: column; gap: 5px; }
.cab-login-card .field label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--c-muted);
}
.cab-login-card .field input {
  padding: 11px 14px;
  font-size: 15px;
  font-family: inherit;
  color: var(--c-ink);
  background: var(--c-bg);
  border: 1.5px solid var(--c-border-strong);
  border-radius: var(--c-radius-sm);
  outline: none;
  transition: border-color 0.15s;
}
.cab-login-card .field input::placeholder { color: var(--c-muted); }
.cab-login-card .field input:focus { border-color: var(--c-brand); }
.cab-login-card .field .field-error { font-size: 12px; color: #d44; min-height: 16px; }
.cab-login-card .nudge {
  margin: 20px 0 0;
  padding: 14px 16px;
  background: var(--c-bg);
  border-radius: var(--c-radius-sm);
  font-size: 13px;
  color: var(--c-ink-soft);
  line-height: 1.55;
}
.cab-login-card .nudge a { color: var(--c-brand-ink); text-decoration: none; font-weight: 500; }
.cab-login-card .nudge a:hover { text-decoration: underline; }

/* States within the login card */
.cab-state[hidden] { display: none; }
.cab-spinner {
  width: 28px; height: 28px;
  border: 2.5px solid var(--c-border);
  border-top-color: var(--c-brand);
  border-radius: 50%;
  animation: cabSpin 0.9s linear infinite;
  margin: 6px auto 14px;
}
@keyframes cabSpin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) { .cab-spinner { animation: none; } }
.cab-status { text-align: center; color: var(--c-ink-soft); font-size: 14px; margin: 0 0 4px; }
.cab-microtext { margin: 14px 0 0; font-size: 12.5px; color: var(--c-muted); line-height: 1.5; text-align: center; }
.cab-microtext a { color: var(--c-brand-ink); text-decoration: none; }
.cab-microtext a:hover { text-decoration: underline; }
.cab-err {
  background: var(--c-warn-bg);
  border: 1px solid var(--c-warn-bd);
  border-radius: var(--c-radius-sm);
  padding: 12px 14px;
  color: var(--c-warn-ink);
  font-size: 14px;
  margin: 0 0 14px;
}

/* QR code block inside app-waiting */
.cab-qr-block { margin-top: 22px; }
.cab-qr-divider {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  color: var(--c-muted);
  font-size: 12.5px;
}
.cab-qr-divider::before,
.cab-qr-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--c-border);
}
.cab-qr-wrap {
  display: flex;
  justify-content: center;
  margin-bottom: 12px;
}
.cab-qr-wrap img {
  display: block;
  border: 1px solid var(--c-border);
  border-radius: 10px;
  padding: 8px;
  background: #fff;
}
.cab-qr-hint {
  text-align: center;
  font-size: 12.5px;
  color: var(--c-muted);
  margin: 0;
  line-height: 1.55;
}

@media (max-width: 860px) {
  .cab-login-grid { grid-template-columns: 1fr; gap: 32px; }
  .cab-login-card { position: static; }
  .cab-login-grid h1 { font-size: 30px; }
  .cab-login-main { padding: 32px 20px 56px; }
}

/* ---------- Dashboard ---------- */
.cab-main { max-width: 880px; margin: 0 auto; padding: 56px 32px 80px; }
.cab-hero { margin-bottom: 40px; }
.cab-hero h1 {
  font-size: 38px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 0 0 10px;
}
.cab-hero p { margin: 0; color: var(--c-muted); font-size: 16px; line-height: 1.55; max-width: 620px; }

.cab-section {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--c-radius);
  padding: 28px 32px 24px;
  margin-bottom: 20px;
}
.cab-section .label {
  font-family: var(--c-mono);
  font-size: 12px;
  color: var(--c-brand);
  letter-spacing: 0.04em;
  margin-bottom: 10px;
}
.cab-section h2 {
  font-size: 22px;
  font-weight: 700;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}
.cab-section .desc { margin: 0 0 18px; color: var(--c-muted); font-size: 14.5px; line-height: 1.6; max-width: 640px; }

.cab-row {
  display: grid;
  grid-template-columns: 32px 1fr auto;
  align-items: start;
  gap: 16px;
  padding: 16px 14px;
  border-top: 1px solid var(--c-border);
  text-decoration: none;
  color: inherit;
}
.cab-row:last-child { border-bottom: 1px solid var(--c-border); }
.cab-row.is-soon { opacity: 0.78; cursor: default; }
.cab-row.is-ready { transition: background .15s; border-radius: 4px; }
.cab-row.is-ready:hover { background: var(--c-brand-soft); }
.cab-row .num { font-family: var(--c-mono); font-size: 13px; color: var(--c-muted); font-weight: 500; padding-top: 1px; }
.cab-row .text-cell { display: block; min-width: 0; }
.cab-row .text-title { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; font-weight: 600; font-size: 15px; color: var(--c-ink); margin-bottom: 4px; line-height: 1.3; }
.cab-row .text-desc  { display: block; color: var(--c-muted); font-size: 13.5px; line-height: 1.5; }
.cab-row .arrow { color: var(--c-muted); font-size: 16px; width: 16px; text-align: right; padding-top: 1px; }
.cab-row.is-ready .arrow { color: var(--c-brand); }

.cab-contacts { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 4px; }
.cab-contact {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 18px;
  border: 1px solid var(--c-border);
  border-radius: var(--c-radius-sm);
  text-decoration: none;
  background: var(--c-surface);
  min-width: 200px;
  transition: border-color .15s, background .15s;
}
.cab-contact:hover { border-color: var(--c-brand-border); background: var(--c-brand-soft); }
.cab-contact .nm { font-weight: 600; font-size: 14.5px; color: var(--c-ink); }
.cab-contact .hd { font-family: var(--c-mono); font-size: 13px; color: var(--c-brand-ink); }

.cab-footer-meta {
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--c-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--c-muted);
  font-size: 12.5px;
  font-family: var(--c-mono);
}

@media (max-width: 640px) {
  .cab-main { padding: 32px 16px 56px; }
  .cab-hero h1 { font-size: 28px; }
  .cab-section { padding: 20px 12px 16px; }
  .cab-row { grid-template-columns: 28px 1fr auto; gap: 12px; padding: 14px 10px; }
  .cab-row .arrow { display: none; }
  .cab-contact { min-width: 0; flex: 1; }
  .cab-footer-meta { flex-direction: column; gap: 8px; align-items: flex-start; }
}

/* ---------- Roadmap (practicum checklist) ---------- */
.cab-roadmap { border-left: 3px solid var(--c-brand); }

.cab-roadmap-progress {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 8px 0 18px;
}
.cab-roadmap-toggle {
  background: transparent;
  border: 1px solid var(--c-border);
  border-radius: 999px;
  padding: 4px 12px;
  font-family: var(--c-sans);
  font-size: 12.5px;
  color: var(--c-ink-soft);
  cursor: pointer;
  white-space: nowrap;
  transition: background .15s, border-color .15s;
}
.cab-roadmap-toggle:hover { background: var(--c-surface); border-color: var(--c-border-strong); }
.cab-roadmap-toggle .lbl-expand   { display: none; }
.cab-roadmap-toggle .lbl-collapse { display: inline; }
.cab-roadmap.is-collapsed .cab-roadmap-toggle .lbl-expand   { display: inline; }
.cab-roadmap.is-collapsed .cab-roadmap-toggle .lbl-collapse { display: none; }
.cab-roadmap.is-collapsed .cab-roadmap-list { display: none; }
.cab-roadmap.is-collapsed .desc { display: none; }
.cab-roadmap.is-collapsed .cab-roadmap-progress { margin-bottom: 0; }
.cab-roadmap-progress .bar {
  position: relative;
  flex: 1;
  height: 6px;
  background: var(--c-border);
  border-radius: 999px;
  overflow: hidden;
}
.cab-roadmap-progress .fill {
  position: absolute;
  inset: 0 auto 0 0;
  background: var(--c-brand);
  border-radius: 999px;
  transition: width .3s ease;
}
.cab-roadmap-progress .counter {
  font-family: var(--c-mono);
  font-size: 12.5px;
  color: var(--c-muted);
  white-space: nowrap;
}

.cab-roadmap-list {
  list-style: none;
  margin: 0;
  padding: 0;
}
.cab-roadmap-item {
  display: grid;
  grid-template-columns: 28px 1fr;
  gap: 14px;
  align-items: start;
  padding: 14px 0;
  border-bottom: 1px solid var(--c-border);
  transition: opacity .2s;
}
.cab-roadmap-item:last-child { border-bottom: none; }
.cab-roadmap-item.is-done { opacity: 0.6; }
.cab-roadmap-item.is-done .cab-roadmap-title .text { text-decoration: line-through; color: var(--c-muted); }

.cab-roadmap-check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 1px;
  cursor: pointer;
  user-select: none;
}
.cab-roadmap-check input { position: absolute; opacity: 0; pointer-events: none; }
.cab-roadmap-check .box {
  width: 22px;
  height: 22px;
  border: 1.5px solid var(--c-border-strong);
  border-radius: 6px;
  background: #fff;
  transition: background .15s, border-color .15s;
  position: relative;
}
.cab-roadmap-check:hover .box { border-color: var(--c-brand); }
.cab-roadmap-check input:focus-visible + .box { outline: 2px solid var(--c-brand); outline-offset: 2px; }
.cab-roadmap-check input:checked + .box {
  background: var(--c-brand);
  border-color: var(--c-brand);
}
.cab-roadmap-check input:checked + .box::after {
  content: "";
  position: absolute;
  left: 6px;
  top: 2px;
  width: 6px;
  height: 11px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.cab-roadmap-body { min-width: 0; }
.cab-roadmap-title {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  font-weight: 600;
  font-size: 15px;
  color: var(--c-ink);
  margin-bottom: 4px;
  line-height: 1.3;
}
.cab-roadmap-title .num { font-family: var(--c-mono); font-size: 13px; color: var(--c-muted); font-weight: 500; }
.cab-roadmap-desc {
  color: var(--c-muted);
  font-size: 13.5px;
  line-height: 1.5;
  margin-bottom: 6px;
}
.cab-roadmap-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13.5px;
  color: var(--c-brand);
  text-decoration: none;
  font-weight: 500;
}
.cab-roadmap-link:hover { color: var(--c-brand-hover); text-decoration: underline; }

@media (max-width: 600px) {
  .cab-roadmap-item { grid-template-columns: 24px 1fr; gap: 12px; padding: 12px 0; }
  .cab-roadmap-check .box { width: 20px; height: 20px; }
  .cab-roadmap-check input:checked + .box::after { left: 5px; top: 1px; width: 5px; height: 10px; }
}

/* ---------- Stream widget ---------- */
.cab-stream-widget { border-left: 3px solid var(--c-brand); }

.cab-live-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fef2f2;
  color: #dc2626;
  border: 1px solid #fecaca;
  border-radius: 20px;
  padding: 5px 14px;
  font-size: 13px;
  font-weight: 600;
}
.cab-live-badge::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  animation: cab-pulse-dot 1.5s ease-in-out infinite;
}
@keyframes cab-pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.35; transform: scale(0.65); }
}
@media (prefers-reduced-motion: reduce) { .cab-live-badge::before { animation: none; } }

.cab-stream-live-block { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-bottom: 20px; }

.cab-stream-next-block { margin-bottom: 20px; }
.cab-stream-date { font-size: 15px; color: var(--c-ink); margin-bottom: 12px; }

.cab-stream-done { margin: 0 0 16px; color: var(--c-muted); font-size: 14.5px; }

.cab-schedule { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--c-border); }
.cab-schedule-item {
  display: grid;
  grid-template-columns: 18px 60px 1fr;
  align-items: center;
  gap: 10px;
  padding: 10px 0;
  border-bottom: 1px solid var(--c-border);
  font-size: 14px;
}
.cab-schedule-item.done { opacity: 0.45; }
.cab-schedule-item.next .sched-label,
.cab-schedule-item.next .sched-date  { color: var(--c-brand-ink); font-weight: 600; }
.sched-icon { font-family: var(--c-mono); font-size: 12px; color: var(--c-muted); text-align: center; }
.cab-schedule-item.done .sched-icon { color: #16a34a; }
.cab-schedule-item.next .sched-icon { color: var(--c-brand); }
.cab-schedule-item.live .sched-icon { color: #dc2626; }
.sched-label { font-weight: 500; color: var(--c-ink-soft); }
.sched-date  { color: var(--c-muted); font-size: 13.5px; }

/* ---------- UseCase ---------- */
.cab-crumbs {
  font-family: var(--c-mono);
  font-size: 12px;
  color: var(--c-muted);
  margin-bottom: 18px;
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}
.cab-crumbs a { color: var(--c-muted); text-decoration: none; }
.cab-crumbs a:hover { color: var(--c-brand-ink); }
.cab-crumbs .here { color: var(--c-brand); }

.cab-uc-hero { margin-bottom: 28px; }
.cab-uc-hero .chips { display: flex; gap: 8px; margin-bottom: 14px; flex-wrap: wrap; }
.cab-uc-hero h1 {
  font-size: 38px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.1;
  margin: 0 0 12px;
}
.cab-uc-hero p { margin: 0; color: var(--c-muted); font-size: 17px; line-height: 1.55; max-width: 640px; }

.cab-toc {
  border: 1px solid var(--c-border);
  border-radius: 12px;
  background: var(--c-surface);
  padding: 16px 20px;
  margin-bottom: 24px;
}
.cab-toc .lbl {
  font-family: var(--c-mono);
  font-size: 11px;
  color: var(--c-brand);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.cab-toc ol { list-style: none; padding: 0; margin: 0; column-count: 2; column-gap: 32px; }
.cab-toc li { padding: 4px 0; font-size: 13.5px; break-inside: avoid; }
.cab-toc a { color: var(--c-ink-soft); text-decoration: none; }
.cab-toc a:hover { color: var(--c-brand-ink); }
.cab-toc .n { font-family: var(--c-mono); color: var(--c-muted); margin-right: 8px; }
@media (max-width: 640px) { .cab-toc ol { column-count: 1; } }

.cab-sec-h { margin: 40px 0 18px; }
.cab-sec-h .lbl {
  font-family: var(--c-mono);
  font-size: 12px;
  color: var(--c-brand);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.cab-sec-h h2 {
  margin: 0;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.015em;
}
.cab-sec-h .rule { height: 1px; background: var(--c-border); margin-top: 14px; }

.cab-choose-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 12px; }
@media (max-width: 720px) { .cab-choose-grid { grid-template-columns: 1fr; } }
.cab-choose {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--c-radius);
  padding: 24px 26px;
}
.cab-choose.is-rec { border: 2px solid var(--c-brand); }
.cab-choose .badge-row { margin-bottom: 14px; }
.cab-choose h3 { margin: 0 0 12px; font-size: 18px; font-weight: 700; }
.cab-choose ul { list-style: none; padding: 0; margin: 0; }
.cab-choose li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 6px 0;
  font-size: 14px;
  color: var(--c-ink-soft);
  line-height: 1.5;
}
.cab-choose li::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 999px;
  background: var(--c-muted);
  margin-top: 8px;
  flex-shrink: 0;
}
.cab-choose.is-rec li::before { background: var(--c-brand); }

.cab-step {
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--c-radius);
  padding: 28px 32px;
  margin-bottom: 16px;
}
.cab-step header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}
.cab-step .num {
  width: 32px; height: 32px;
  border-radius: 999px;
  background: var(--c-brand);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  font-family: var(--c-mono);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.cab-step h3 { margin: 0; font-size: 19px; font-weight: 700; letter-spacing: -0.01em; }
.cab-step .body { color: var(--c-ink-soft); font-size: 15px; line-height: 1.6; }
.cab-step p { margin: 0 0 10px; }
.cab-step a { color: var(--c-brand-ink); text-decoration: underline; text-decoration-color: var(--c-brand-border); text-underline-offset: 3px; }
.cab-step a:hover { text-decoration-color: var(--c-brand); }
/* Buttons inside step-text shouldn't inherit the underline link styling */
.cab-step .cab-btn { text-decoration: none; }
.cab-step .cab-btn-primary,
.cab-step .cab-btn-primary:hover { color: #fff; }
.cab-step .cab-btn-secondary,
.cab-step .cab-btn-secondary:hover { color: var(--c-ink); }

.cab-callout {
  border: 1px solid;
  border-radius: var(--c-radius-sm);
  padding: 12px 16px;
  margin: 14px 0;
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 14px;
  line-height: 1.55;
}
.cab-callout .lbl {
  font-family: var(--c-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  font-weight: 700;
  text-transform: uppercase;
  min-width: 78px;
  padding-top: 2px;
  flex-shrink: 0;
}
.cab-callout-note    { background: var(--c-note-bg); border-color: var(--c-note-bd); color: var(--c-note-ink); }
.cab-callout-warning { background: var(--c-warn-bg); border-color: var(--c-warn-bd); color: var(--c-warn-ink); }
.cab-callout-success { background: var(--c-ok-bg);   border-color: var(--c-ok-bd);   color: var(--c-ok-ink); }

.cab-figure { margin: 18px 0; text-align: left; }
.cab-figure img {
  display: block;
  max-width: 100%;
  width: auto;
  height: auto;
  border: 1px solid var(--c-border);
  border-radius: var(--c-radius-sm);
  background: var(--c-surface-mute);
}
.cab-figure figcaption { font-family: var(--c-mono); font-size: 12px; color: var(--c-muted); margin-top: 8px; }
.cab-figure-stub {
  width: 100%;
  height: 220px;
  border: 1px solid var(--c-border);
  border-radius: var(--c-radius-sm);
  background: repeating-linear-gradient(135deg, #fafaf8 0 14px, #f0efeb 14px 28px);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--c-mono);
  font-size: 12px;
  color: var(--c-muted);
}

.cab-table-wrap { border: 1px solid var(--c-border); border-radius: var(--c-radius-sm); overflow: hidden; margin: 14px 0; }
.cab-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.cab-table th {
  text-align: left;
  padding: 10px 14px;
  background: var(--c-surface-mute);
  color: var(--c-muted);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--c-border);
}
.cab-table td {
  padding: 10px 14px;
  border-top: 1px solid var(--c-border);
  vertical-align: top;
}
.cab-table tr:first-child td { border-top: 0; }
.cab-table td:first-child { color: var(--c-muted); font-weight: 500; }

.cab-more {
  border: 1px solid var(--c-border);
  border-radius: var(--c-radius-sm);
  background: var(--c-surface-mute);
  margin: 14px 0;
  overflow: hidden;
}
.cab-more > summary {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 11px 16px;
  cursor: pointer;
  list-style: none;
  font-size: 13px;
  color: var(--c-ink-mute);
  font-weight: 400;
}
.cab-more > summary::-webkit-details-marker { display: none; }
.cab-more > summary .chev {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 14px;
  font-size: 10px;
  line-height: 1;
  color: var(--c-brand);
  transition: transform .15s;
  flex-shrink: 0;
  transform: rotate(0deg);
}
.cab-more[open] > summary .chev { transform: rotate(90deg); }
.cab-more > summary .uc-lbl {
  font-family: var(--c-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--c-brand);
}
.cab-more > summary .dash { color: var(--c-muted); font-weight: 500; }
.cab-more > .body {
  padding: 8px 16px 16px 40px;
  color: var(--c-ink-soft);
  font-size: 14px;
  line-height: 1.6;
  border-top: 1px solid var(--c-border);
  background: var(--c-surface);
}
.cab-more > .body p:first-child { margin-top: 0; }
.cab-more > .body p:last-child  { margin-bottom: 0; }

.cab-cta-row { display: flex; gap: 10px; flex-wrap: wrap; margin: 12px 0; }

/* Prereq + Links lists inside a cab-section */
.cab-prereq, .cab-links-list { list-style: none; padding: 0; margin: 0; }
.cab-prereq li, .cab-links-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  padding: 8px 0;
  font-size: 14.5px;
  color: var(--c-ink-soft);
  line-height: 1.55;
}
.cab-prereq li::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 999px;
  background: var(--c-brand);
  margin-top: 9px;
  flex-shrink: 0;
}
.cab-links-list li::before {
  content: '↗';
  color: var(--c-brand);
  font-family: var(--c-mono);
  font-size: 13px;
  margin-top: 2px;
  flex-shrink: 0;
}
.cab-links-list a { color: var(--c-brand-ink); text-decoration: underline; text-decoration-color: var(--c-brand-border); text-underline-offset: 3px; }
.cab-links-list a:hover { text-decoration-color: var(--c-brand); }

/* Step body content — code/pre/lists */
.cab-step .step-text code {
  font-family: var(--c-mono);
  font-size: 0.92em;
  background: var(--c-surface-mute);
  border: 1px solid var(--c-border);
  border-radius: 4px;
  padding: 1px 6px;
}
.cab-step .step-text pre {
  font-family: var(--c-mono);
  font-size: 13px;
  line-height: 1.55;
  background: var(--c-surface-mute);
  border: 1px solid var(--c-border);
  border-radius: var(--c-radius-sm);
  padding: 12px 14px;
  margin: 10px 0;
  overflow-x: auto;
  white-space: pre;
}
/* Long prose blocks (e.g. a ready-to-copy prompt): wrap instead of scroll */
.cab-step .step-text pre.wrap {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  overflow-x: visible;
}
/* Copy-button on <pre> blocks (added by JS in usecase.php) */
.cab-pre-wrap { position: relative; }
.cab-pre-wrap pre { padding-right: 56px !important; }
.cab-copy-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  color: var(--c-ink-soft);
  font-family: var(--c-mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  padding: 4px 9px;
  border-radius: 6px;
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s;
  z-index: 1;
}
.cab-copy-btn:hover { background: var(--c-brand-soft); color: var(--c-brand-ink); border-color: var(--c-brand-border); }
.cab-copy-btn.is-ok { background: var(--c-ok-bg); color: var(--c-ok-ink); border-color: var(--c-ok-bd); }
.cab-step .step-text pre code {
  background: transparent;
  border: 0;
  padding: 0;
  font-size: inherit;
}
.cab-step .step-text ul, .cab-step .step-text ol { margin: 8px 0; padding-left: 22px; }
.cab-step .step-text li { padding: 3px 0; }
.cab-step .step-text strong { color: var(--c-ink); font-weight: 600; }
.cab-step .step-text em { font-style: italic; color: var(--c-ink); }
.cab-step .step-text p { margin: 0 0 10px; }
.cab-step .step-text p:last-child { margin-bottom: 0; }
.cab-step .step-text .cab-btn { margin-top: 6px; }

/* Mobile tweaks for steps */
@media (max-width: 640px) {
  .cab-step { padding: 22px 18px; }
  .cab-step header { gap: 10px; }
  .cab-step h3 { font-size: 17px; }
  .cab-step .step-text pre { font-size: 12px; padding: 10px 12px; }
}