/* ============================================================
   Sunspeak guide — docs layout
   Sidebar + content + on-this-page (optional).
   ============================================================ */

.guide-shell {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  min-height: calc(100vh - 4rem);
}

@media (min-width: 960px) {
  .guide-shell {
    grid-template-columns: 280px minmax(0, 1fr);
  }
}

/* ---------- Sidebar ---------- */

.guide-sidebar {
  position: sticky;
  top: 4rem;
  align-self: start;
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 2rem 1.25rem;
  max-height: calc(100vh - 4rem);
  overflow-y: auto;
  display: none;
}

@media (min-width: 960px) {
  .guide-sidebar {
    display: block;
  }
}

.guide-sidebar.is-open {
  display: block;
  position: fixed;
  top: 4rem;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 50;
  border-right: 0;
  max-height: none;
}

.sidebar-title {
  font-family: 'Comfortaa', sans-serif;
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
  padding: 0 0.5rem;
  color: var(--text);
}

.sidebar-intro {
  padding: 0 0.5rem 1rem;
  margin: 0;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.guide-search {
  width: 100%;
  padding: 0.6rem 0.85rem;
  border-radius: 0.6rem;
  border: 1px solid var(--border);
  background: var(--background);
  color: var(--text);
  font-family: inherit;
  font-size: 0.92rem;
  margin-bottom: 1.5rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.guide-search:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--primary) 18%, transparent);
}

.sidebar-group + .sidebar-group {
  margin-top: 1.5rem;
}

.sidebar-group h4 {
  font-size: 0.7rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--brand-strong);
  margin: 0 0 0.5rem;
  padding: 0 0.5rem;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
}

.dark .sidebar-group h4 {
  color: var(--brand);
}

.sidebar-group ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
}

.sidebar-group li a {
  display: block;
  padding: 0.5rem 0.75rem;
  border-radius: 0.5rem;
  color: var(--text-soft);
  font-size: 0.92rem;
  font-weight: 500;
  border-left: 2px solid transparent;
  transition: background 0.15s ease, color 0.15s ease,
    border-color 0.15s ease;
}

.sidebar-group li a:hover {
  background: var(--surface-2);
  color: var(--text);
  opacity: 1;
}

.sidebar-group li a.is-active {
  background: color-mix(in srgb, var(--primary) 10%, transparent);
  color: var(--primary-strong);
  border-left-color: var(--primary);
  opacity: 1;
}

.dark .sidebar-group li a.is-active {
  color: var(--accent);
}

/* ---------- Content ---------- */

.guide-content {
  padding: 2.5rem 1.5rem 5rem;
  max-width: 820px;
  width: 100%;
  margin: 0 auto;
}

@media (min-width: 960px) {
  .guide-content {
    padding: 3.5rem 3rem 6rem;
    margin: 0;
  }
}

.guide-header {
  margin-bottom: 3rem;
}

.guide-header h1 {
  font-size: clamp(2rem, 4vw, 2.75rem);
  margin: 0 0 0.75rem;
}

.guide-header p {
  color: var(--text-soft);
  font-size: 1.05rem;
  max-width: 60ch;
  margin: 0;
}

.guide-section {
  margin-bottom: 4rem;
  scroll-margin-top: 5rem;
}

.guide-section h2 {
  font-size: 1.75rem;
  margin: 0 0 0.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}

.guide-section .lead-text {
  color: var(--text-soft);
  font-size: 1.05rem;
  margin: 1.25rem 0 1rem;
}

.guide-section p,
.guide-section li {
  color: var(--text-soft);
}

.guide-section ol,
.guide-section ul {
  padding-left: 1.25rem;
}

.guide-section ol li,
.guide-section ul li {
  margin-bottom: 0.5rem;
}

.guide-section h3 {
  margin: 2rem 0 0.75rem;
  font-size: 1.15rem;
  color: var(--text);
}

/* Inline Material Design Icons (matches app MaterialCommunityIcons names) */
.guide-icon.mdi {
  display: inline-block;
  font-size: 1.125em;
  width: 1.125em;
  line-height: 1;
  vertical-align: middle;
  margin: 0 0.12em;
  color: var(--text-soft);
  position: relative;
  top: -0.06em;
}

.guide-icon.mdi::before {
  line-height: 1;
}

.dark .guide-icon.mdi {
  color: var(--text-soft);
}

/* Steps list */
.steps {
  list-style: none;
  padding: 0;
  counter-reset: step;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin: 1.25rem 0;
}

.steps li {
  position: relative;
  padding: 1rem 1.25rem 1rem 3.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.85rem;
  counter-increment: step;
  color: var(--text);
}

.steps li::before {
  content: counter(step);
  position: absolute;
  left: 1rem;
  top: 0.95rem;
  width: 1.6rem;
  height: 1.6rem;
  border-radius: 999px;
  background: transparent;
  border: 1.5px solid color-mix(in srgb, var(--primary) 55%, var(--border));
  color: var(--primary-strong);
  font-size: 0.85rem;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.dark .steps li::before {
  border-color: color-mix(in srgb, var(--primary) 65%, var(--border));
  color: var(--primary);
}

/* Info tip callout */
.guide-tip {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  border-radius: 0.85rem;
  background: color-mix(in srgb, var(--primary) 8%, transparent);
  border: 1px solid color-mix(in srgb, var(--primary) 28%, transparent);
  color: var(--text);
  margin: 1.25rem 0;
}

.guide-tip svg {
  flex-shrink: 0;
  width: 1.1rem;
  height: 1.1rem;
  color: var(--primary-strong);
  margin-top: 0.18rem;
}

.dark .guide-tip svg {
  color: var(--primary);
}

.guide-tip p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-soft);
}

/* "Coming soon" pill */
.todo-note {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1rem 1.25rem;
  border-radius: 0.85rem;
  background: color-mix(in srgb, var(--brand) 12%, transparent);
  border: 1px dashed color-mix(in srgb, var(--brand) 45%, transparent);
  color: var(--text);
  margin: 1.25rem 0;
}

.todo-note svg {
  flex-shrink: 0;
  width: 1.1rem;
  height: 1.1rem;
  color: var(--brand-strong);
  margin-top: 0.18rem;
}

.dark .todo-note svg {
  color: var(--brand);
}

.todo-note p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-soft);
}

/* Inline YouTube video placeholder */
.video-card {
  margin: 1.5rem 0 2rem;
  border-radius: 1rem;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--surface);
}

.video-card .video-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--surface-2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
}

.video-card .video-frame svg {
  width: 3rem;
  height: 3rem;
  opacity: 0.5;
}

.video-card .video-frame iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-card .video-meta {
  padding: 0.85rem 1.1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.88rem;
  color: var(--text-soft);
  border-top: 1px solid var(--border);
}

.video-card .video-meta a {
  color: var(--primary-strong);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.dark .video-card .video-meta a {
  color: var(--accent);
}

/* ---------- Mobile sidebar toggle ---------- */

.guide-mobile-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.5rem;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 4rem;
  z-index: 40;
}

@media (min-width: 960px) {
  .guide-mobile-bar {
    display: none;
  }
}

.guide-mobile-bar .label {
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-muted);
  font-weight: 600;
}

.guide-sidebar-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 0.85rem;
  border-radius: 0.6rem;
  border: 1px solid var(--border);
  background: var(--background);
  color: var(--text);
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
}

.guide-sidebar-toggle svg {
  width: 1rem;
  height: 1rem;
}