/* ============================================================
   GUIDE — Interactive guide template layout and components
   ============================================================ */

/* ---- Guide Layout ---- */
.guide-layout {
  display: grid;
  grid-template-columns: 1fr var(--sidebar-width);
  gap: var(--space-8);
  max-width: var(--container-max);
  margin: 0 auto;
  padding: var(--space-8) var(--space-6);
  align-items: start;
}
.guide-layout > * { min-width: 0; }

/* ---- Breadcrumbs ---- */
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: var(--space-6);
  flex-wrap: wrap;
}
.breadcrumbs a { color: var(--text-muted); text-decoration: none; }
.breadcrumbs a:hover { color: var(--color-primary); }
.breadcrumbs .sep { opacity: 0.5; }
.breadcrumbs .current { color: var(--text-secondary); }

/* ---- Guide Hero ---- */
.guide-hero {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  margin-bottom: var(--space-6);
}

.guide-category-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: rgba(0,87,255,0.08);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  padding: var(--space-1) var(--space-3);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-4);
}

.guide-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.5vw, 2.2rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: var(--space-4);
}

.guide-excerpt {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-6);
}

.guide-meta-bar {
  display: flex;
  align-items: center;
  gap: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--border-light);
  flex-wrap: wrap;
}

.guide-meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.85rem;
  color: var(--text-muted);
}
.guide-meta-item strong { color: var(--text-primary); font-weight: 600; }
.guide-meta-item svg { width: 15px; height: 15px; stroke: currentColor; fill: none; }

/* Warning banner */
.guide-warning-banner {
  background: rgba(255,154,0,0.08);
  border: 1px solid rgba(255,154,0,0.3);
  border-left: 4px solid var(--color-warning);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  margin-bottom: var(--space-6);
  display: flex;
  gap: var(--space-3);
}
.guide-warning-banner .warn-icon { font-size: 1.2rem; flex-shrink: 0; }
.guide-warning-banner p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; margin: 0; }
.guide-warning-banner strong { color: var(--text-primary); }

/* ---- Prerequisites ---- */
.prerequisites-block {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin-bottom: var(--space-6);
}

.block-title {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-2);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.block-title svg { width: 18px; height: 18px; stroke: currentColor; fill: none; }
.block-subtitle { font-size: 0.85rem; color: var(--text-muted); margin-bottom: var(--space-5); }

.prereq-list { display: flex; flex-direction: column; gap: var(--space-3); }

.prereq-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--bg-subtle);
  border-radius: var(--radius-md);
  border: 1.5px solid transparent;
  transition: border-color var(--transition-fast), background var(--transition-fast);
  cursor: pointer;
  user-select: none;
}
.prereq-item:hover { border-color: var(--border-medium); }
.prereq-item.checked { background: rgba(0,196,106,0.06); border-color: rgba(0,196,106,0.3); }

.prereq-checkbox {
  width: 20px; height: 20px;
  border: 2px solid var(--border-medium);
  border-radius: 5px;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  transition: border-color var(--transition-fast), background var(--transition-fast);
  margin-top: 1px;
}
.prereq-item.checked .prereq-checkbox { background: var(--color-success); border-color: var(--color-success); }
.prereq-checkbox::after {
  content: '';
  width: 5px; height: 9px;
  border: 2px solid #fff;
  border-top: none; border-left: none;
  transform: rotate(45deg) scale(0);
  transition: transform var(--transition-fast);
  margin-top: -2px;
}
.prereq-item.checked .prereq-checkbox::after { transform: rotate(45deg) scale(1); }

.prereq-content { flex: 1; }
.prereq-label { font-size: 0.9rem; font-weight: 500; color: var(--text-primary); line-height: 1.4; }
.prereq-desc { font-size: 0.8rem; color: var(--text-muted); margin-top: 2px; }

.prereq-progress {
  margin-top: var(--space-5);
  padding-top: var(--space-5);
  border-top: 1px solid var(--border-light);
}
.prereq-progress-label {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: var(--space-2);
}
.prereq-progress-label strong { color: var(--text-primary); }
.prereq-progress-track {
  height: 6px;
  background: var(--bg-muted);
  border-radius: var(--radius-full);
  overflow: hidden;
}
.prereq-progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: var(--radius-full);
  transition: width var(--transition-slow);
  width: 0%;
}

.proceed-btn {
  margin-top: var(--space-4);
  width: 100%;
  padding: var(--space-3) var(--space-6);
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  transition: background var(--transition-fast), opacity var(--transition-fast);
  opacity: 0.4;
  pointer-events: none;
}
.proceed-btn.enabled { opacity: 1; pointer-events: all; }
.proceed-btn.enabled:hover { background: var(--color-primary-dark); }

/* ---- Guide Steps ---- */
.guide-steps-wrapper { margin-bottom: var(--space-6); }

.guide-progress-header {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-6);
  margin-bottom: var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.progress-summary { flex: 1; }
.progress-summary-label { font-size: 0.82rem; color: var(--text-muted); margin-bottom: var(--space-2); }
.progress-track {
  height: var(--progress-height);
  background: var(--bg-muted);
  border-radius: var(--radius-full);
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
  border-radius: var(--radius-full);
  transition: width 0.5s cubic-bezier(0.4,0,0.2,1);
  width: 0%;
}
.progress-count {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-primary);
  flex-shrink: 0;
  text-align: right;
}
.progress-count small { display: block; font-size: 0.75rem; font-weight: 400; color: var(--text-muted); font-family: var(--font-body); }

/* Step card */
.step-card {
  background: var(--bg-surface);
  border: 1.5px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: var(--space-4);
  transition: border-color var(--transition-normal), box-shadow var(--transition-normal);
}
.step-card.step-active { border-color: var(--color-primary); box-shadow: 0 0 0 3px rgba(0,87,255,0.08); }
.step-card.step-done { border-color: rgba(0,196,106,0.4); }

.step-header {
  display: flex;
  align-items: flex-start;
  gap: var(--space-4);
  padding: var(--space-5) var(--space-6);
  cursor: pointer;
  user-select: none;
}

.step-number {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 2px solid var(--border-medium);
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-shrink: 0;
  transition: all var(--transition-fast);
}
.step-card.step-active .step-number { border-color: var(--color-primary); background: var(--color-primary); color: #fff; }
.step-card.step-done .step-number { border-color: var(--color-success); background: var(--color-success); color: #fff; }
.step-card.step-done .step-number::before { content: '✓'; }
.step-card.step-done .step-number-val { display: none; }

.step-header-content { flex: 1; }
.step-title { font-family: var(--font-display); font-weight: 700; font-size: 1rem; color: var(--text-primary); line-height: 1.35; }
.step-subtitle { font-size: 0.8rem; color: var(--text-muted); margin-top: 2px; }

.step-toggle {
  width: 28px; height: 28px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--bg-subtle);
  color: var(--text-muted);
  flex-shrink: 0;
  transition: transform var(--transition-fast), background var(--transition-fast);
}
.step-toggle svg { width: 14px; height: 14px; stroke: currentColor; fill: none; }
.step-card.step-open .step-toggle { transform: rotate(180deg); background: var(--bg-muted); }

.step-body {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.4s cubic-bezier(0.4,0,0.2,1);
}
.step-card.step-open .step-body { max-height: 2000px; }

.step-body-inner {
  padding: 0 var(--space-6) var(--space-6);
  padding-left: calc(var(--space-6) + 36px + var(--space-4));
}

/* Step content prose */
.step-content { font-size: 0.92rem; color: var(--text-secondary); line-height: 1.75; }
.step-content p { margin-bottom: var(--space-4); }
.step-content ul, .step-content ol { margin: var(--space-3) 0 var(--space-4) var(--space-5); }
.step-content li { margin-bottom: var(--space-2); }
.step-content ol { list-style: decimal; }
.step-content ul { list-style: disc; }

.step-content code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--bg-muted);
  color: var(--color-primary);
  padding: 2px 6px;
  border-radius: 4px;
}

.step-content .cmd-block {
  background: #0D1B2A;
  color: #A8FF78;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  margin: var(--space-4) 0;
  overflow-x: auto;
  position: relative;
}
[data-theme="dark"] .step-content .cmd-block { background: #000; }

.step-content .note-box {
  background: rgba(0,87,255,0.06);
  border-left: 3px solid var(--color-primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: var(--space-3) var(--space-4);
  margin: var(--space-4) 0;
  font-size: 0.88rem;
}
.step-content .warning-box {
  background: rgba(255,154,0,0.07);
  border-left: 3px solid var(--color-warning);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: var(--space-3) var(--space-4);
  margin: var(--space-4) 0;
  font-size: 0.88rem;
}
.step-content .danger-box {
  background: rgba(255,59,59,0.06);
  border-left: 3px solid var(--color-danger);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: var(--space-3) var(--space-4);
  margin: var(--space-4) 0;
  font-size: 0.88rem;
}

.step-img {
  border-radius: var(--radius-md);
  border: 1px solid var(--border-light);
  width: 100%;
  margin: var(--space-4) 0;
}

/* Step confirm button */
.step-confirm-area {
  margin-top: var(--space-5);
  padding-top: var(--space-5);
  border-top: 1px solid var(--border-light);
}

.step-confirm-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9rem;
  transition: background var(--transition-fast), transform var(--transition-fast);
}
.step-confirm-btn:hover { background: var(--color-primary-dark); transform: translateY(-1px); }
.step-confirm-btn.confirmed { background: var(--color-success); pointer-events: none; }
.step-confirm-btn svg { width: 16px; height: 16px; stroke: currentColor; fill: none; }

/* Confirm modal */
.confirm-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(10,15,30,0.7);
  backdrop-filter: blur(4px);
  z-index: 800;
  display: grid;
  place-items: center;
  padding: var(--space-6);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}
.confirm-modal-overlay.active { opacity: 1; pointer-events: all; }

.confirm-modal {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  max-width: 440px;
  width: 100%;
  box-shadow: var(--shadow-xl);
  transform: scale(0.95);
  transition: transform var(--transition-normal);
  text-align: center;
}
.confirm-modal-overlay.active .confirm-modal { transform: scale(1); }

.confirm-modal-icon {
  width: 64px; height: 64px;
  background: rgba(0,87,255,0.1);
  border-radius: 50%;
  display: grid;
  place-items: center;
  margin: 0 auto var(--space-5);
  font-size: 1.8rem;
}
.confirm-modal h3 { font-family: var(--font-display); font-size: 1.2rem; font-weight: 700; margin-bottom: var(--space-3); }
.confirm-modal p { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.6; margin-bottom: var(--space-6); }

.confirm-modal-actions { display: flex; gap: var(--space-3); }
.confirm-modal-actions button { flex: 1; padding: var(--space-3); border-radius: var(--radius-md); font-weight: 600; font-size: 0.9rem; transition: all var(--transition-fast); }
.btn-confirm-yes { background: var(--color-success); color: #fff; }
.btn-confirm-yes:hover { background: #00A357; }
.btn-confirm-no { background: var(--bg-subtle); color: var(--text-primary); border: 1px solid var(--border-medium); }
.btn-confirm-no:hover { background: var(--bg-muted); }

/* ---- Success Card ---- */
.success-card {
  background: linear-gradient(135deg, rgba(0,196,106,0.08) 0%, rgba(0,212,160,0.06) 100%);
  border: 2px solid rgba(0,196,106,0.3);
  border-radius: var(--radius-xl);
  padding: var(--space-10);
  text-align: center;
  margin-bottom: var(--space-8);
  position: relative;
  overflow: hidden;
  display: none;
}
.success-card.show { display: block; animation: successReveal 0.6s cubic-bezier(0.34,1.56,0.64,1) forwards; }

@keyframes successReveal {
  from { opacity: 0; transform: scale(0.9) translateY(20px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.success-card::before {
  content: '';
  position: absolute;
  top: -100px; right: -100px;
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(0,196,106,0.1), transparent 70%);
  pointer-events: none;
}

.success-emoji {
  font-size: 4rem;
  margin-bottom: var(--space-4);
  display: block;
  animation: bounce 1s ease infinite alternate;
}
@keyframes bounce {
  from { transform: translateY(0); }
  to   { transform: translateY(-10px); }
}

.success-title { font-family: var(--font-display); font-size: 1.8rem; font-weight: 800; color: var(--color-success); margin-bottom: var(--space-3); }
.success-desc { font-size: 1rem; color: var(--text-secondary); max-width: 460px; margin: 0 auto var(--space-6); line-height: 1.65; }
.success-actions { display: flex; gap: var(--space-4); justify-content: center; flex-wrap: wrap; }

.btn-success {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  background: var(--color-success);
  color: #fff;
  border-radius: var(--radius-md);
  padding: var(--space-3) var(--space-6);
  font-weight: 600;
  transition: background var(--transition-fast);
  text-decoration: none;
}
.btn-success:hover { background: #00A357; text-decoration: none; }

.confetti-piece {
  position: absolute;
  width: 8px; height: 8px;
  border-radius: 2px;
  animation: confettiFall 2.5s ease-in forwards;
}
@keyframes confettiFall {
  0%   { transform: translateY(-20px) rotate(0deg); opacity: 1; }
  100% { transform: translateY(200px) rotate(360deg); opacity: 0; }
}

/* ---- FAQ / Troubleshooting ---- */
.faq-section {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  margin-bottom: var(--space-6);
}

.faq-item { border-bottom: 1px solid var(--border-light); }
.faq-item:last-child { border-bottom: none; }

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) 0;
  cursor: pointer;
  user-select: none;
}
.faq-q-text { font-weight: 600; font-size: 0.92rem; color: var(--text-primary); line-height: 1.4; }
.faq-icon {
  width: 24px; height: 24px;
  border-radius: 50%;
  background: var(--bg-subtle);
  display: grid;
  place-items: center;
  flex-shrink: 0;
  color: var(--text-muted);
  font-size: 1.1rem;
  transition: transform var(--transition-fast), background var(--transition-fast);
}
.faq-item.open .faq-icon { transform: rotate(45deg); background: var(--color-primary); color: #fff; }

.faq-answer { overflow: hidden; max-height: 0; transition: max-height 0.35s cubic-bezier(0.4,0,0.2,1); }
.faq-item.open .faq-answer { max-height: 2000px; }

.faq-answer-inner { padding: var(--space-2) 0 var(--space-5); font-size: 0.9rem; color: var(--text-secondary); line-height: 1.75; }
.faq-answer-inner p { margin-bottom: var(--space-4); }
.faq-answer-inner p:last-child { margin-bottom: 0; }

.faq-answer-inner ul {
  list-style: none; margin: var(--space-3) 0 var(--space-4); padding: 0;
  display: flex; flex-direction: column; gap: var(--space-2);
}
.faq-answer-inner ul li {
  display: flex; align-items: baseline; gap: var(--space-3);
  padding: var(--space-2) var(--space-4);
  background: var(--bg-subtle); border-radius: var(--radius-md);
  border-left: 3px solid var(--color-primary); font-size: 0.875rem; line-height: 1.6;
}
.faq-answer-inner ul li::before { content: '→'; color: var(--color-primary); font-size: 0.75rem; flex-shrink: 0; margin-top: 1px; }

.faq-answer-inner ol {
  list-style: none; counter-reset: faq-counter; margin: var(--space-3) 0 var(--space-4); padding: 0;
  display: flex; flex-direction: column; gap: var(--space-2);
}
.faq-answer-inner ol li {
  counter-increment: faq-counter; display: flex; align-items: baseline; gap: var(--space-3);
  padding: var(--space-2) var(--space-4); background: var(--bg-subtle); border-radius: var(--radius-md);
  font-size: 0.875rem; line-height: 1.6;
}
.faq-answer-inner ol li::before {
  content: counter(faq-counter); min-width: 22px; height: 22px;
  background: var(--color-primary); color: #fff; border-radius: 50%;
  display: grid; place-items: center; font-size: 0.72rem; font-weight: 700;
  font-family: var(--font-display); flex-shrink: 0; margin-top: 1px;
}

.faq-answer-inner code { font-family: var(--font-mono); font-size: 0.83em; background: var(--bg-muted); color: var(--color-primary); padding: 2px 7px; border-radius: 4px; word-break: break-all; }
.faq-answer-inner pre { background: #0D1B2A; color: #A8FF78; font-family: var(--font-mono); font-size: 0.82rem; padding: var(--space-4) var(--space-5); border-radius: var(--radius-md); overflow-x: auto; margin: var(--space-4) 0; line-height: 1.6; }
[data-theme="dark"] .faq-answer-inner pre { background: #000; }
.faq-answer-inner pre code { background: none; color: inherit; padding: 0; font-size: inherit; }
.faq-answer-inner strong { font-weight: 700; color: var(--text-primary); }
.faq-answer-inner em { font-style: italic; color: var(--text-secondary); }
.faq-answer-inner a { color: var(--color-primary); text-decoration: underline; text-underline-offset: 2px; transition: color var(--transition-fast); }
.faq-answer-inner a:hover { color: var(--color-primary-dark); }
.faq-answer-inner h3, .faq-answer-inner h4 { font-family: var(--font-display); font-weight: 700; color: var(--text-primary); margin: var(--space-5) 0 var(--space-3); line-height: 1.3; }
.faq-answer-inner h3 { font-size: 0.97rem; }
.faq-answer-inner h4 { font-size: 0.88rem; }
.faq-answer-inner .note-box, .faq-answer-inner .warning-box, .faq-answer-inner .danger-box { display: flex; gap: var(--space-3); padding: var(--space-3) var(--space-4); border-radius: var(--radius-md); margin: var(--space-4) 0; font-size: 0.86rem; line-height: 1.6; }
.faq-answer-inner .note-box    { background: rgba(0,87,255,0.06);   border-left: 3px solid var(--color-primary); }
.faq-answer-inner .warning-box { background: rgba(255,154,0,0.07);  border-left: 3px solid var(--color-warning); }
.faq-answer-inner .danger-box  { background: rgba(255,59,59,0.06);  border-left: 3px solid var(--color-danger); }
.faq-answer-inner .error-code { display: inline-block; font-family: var(--font-mono); font-size: 0.82rem; background: rgba(255,59,59,0.08); color: var(--color-danger); padding: 2px 8px; border-radius: 4px; margin-bottom: var(--space-2); }
.faq-answer-inner hr { border: none; border-top: 1px solid var(--border-light); margin: var(--space-5) 0; }

/* ---- Sidebar ---- */
.guide-sidebar {
  /* position & top are controlled by JS (position:fixed) on desktop.
     On mobile/tablet JS reverts and the element flows normally. */
  align-self: start;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.sidebar-widget {
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.widget-title {
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--border-light);
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}
.widget-title svg { width: 14px; height: 14px; stroke: currentColor; fill: none; }

.toc-list { padding: var(--space-4) var(--space-5); }
.toc-item { margin-bottom: var(--space-1); }
.toc-link {
  display: flex; align-items: center; gap: var(--space-2);
  font-size: 0.82rem; color: var(--text-muted); padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm); text-decoration: none;
  transition: all var(--transition-fast); line-height: 1.35;
}
.toc-link:hover, .toc-link.active { background: rgba(0,87,255,0.06); color: var(--color-primary); text-decoration: none; }
.toc-link.done { color: var(--color-success); }
.toc-link .toc-check { width: 14px; height: 14px; flex-shrink: 0; stroke: currentColor; fill: none; }

.compat-list { padding: var(--space-4) var(--space-5); display: flex; flex-direction: column; gap: var(--space-2); }
.compat-item {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 0.82rem; padding: var(--space-2) 0; border-bottom: 1px solid var(--border-light);
}
.compat-item:last-child { border-bottom: none; }
.compat-label { color: var(--text-muted); }
.compat-value { font-weight: 600; color: var(--text-primary); word-break: break-all; text-align: right; }

.sidebar-progress { padding: var(--space-4) var(--space-5); }
.sidebar-progress-label { display: flex; justify-content: space-between; font-size: 0.78rem; color: var(--text-muted); margin-bottom: var(--space-2); }
.sidebar-progress-bar { height: 4px; background: var(--bg-muted); border-radius: var(--radius-full); overflow: hidden; }
.sidebar-progress-fill { height: 100%; background: linear-gradient(90deg, var(--color-primary), var(--color-accent)); border-radius: var(--radius-full); transition: width 0.5s; width: 0%; }

/* ---- Guide Prose ---- */
.guide-prose { font-size: 0.95rem; color: var(--text-secondary); line-height: 1.75; }
.guide-prose h2, .guide-prose h3 { font-family: var(--font-display); color: var(--text-primary); margin: var(--space-8) 0 var(--space-4); }
.guide-prose h2 { font-size: 1.4rem; font-weight: 700; }
.guide-prose h3 { font-size: 1.1rem; font-weight: 700; }
.guide-prose p { margin-bottom: var(--space-4); }
.guide-prose a { color: var(--color-primary); }
.guide-prose code { font-family: var(--font-mono); font-size: 0.85em; background: var(--bg-muted); color: var(--color-primary); padding: 2px 6px; border-radius: 4px; }
.guide-prose pre { background: #0D1B2A; color: #A8FF78; font-family: var(--font-mono); font-size: 0.85rem; padding: var(--space-5); border-radius: var(--radius-md); overflow-x: auto; margin: var(--space-5) 0; }
.guide-prose blockquote { border-left: 3px solid var(--color-primary); padding-left: var(--space-4); color: var(--text-muted); font-style: italic; margin: var(--space-5) 0; }

/* ---- Comments section (guide) ---- */
.guide-comments-area {
  margin-top: var(--space-8);
  background: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.guide-comments-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-5) var(--space-8);
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  text-align: left;
  transition: background var(--transition-fast);
}
.guide-comments-toggle:hover { background: var(--bg-subtle); }

.guide-comments-toggle-left {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.guide-comments-count-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 24px;
  height: 24px;
  padding: 0 var(--space-2);
  background: rgba(0,87,255,0.1);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
}

.guide-comments-chevron {
  width: 18px;
  height: 18px;
  stroke: var(--text-muted);
  fill: none;
  flex-shrink: 0;
  transition: transform 0.25s ease;
}
.guide-comments-area.is-open .guide-comments-chevron {
  transform: rotate(180deg);
}

.guide-comments-collapsible {
  display: none;
  border-top: 1px solid var(--border-light);
}
.guide-comments-area.is-open .guide-comments-collapsible {
  display: block;
}

.guide-comments-inner {
  padding: var(--space-6) var(--space-8) var(--space-8);
}

/* Comment list */
.guide-comments-area .comment-list {
  list-style: none;
  margin: 0 0 var(--space-8);
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}
.guide-comments-area .comment-list .children {
  list-style: none;
  padding: 0;
  margin: var(--space-4) 0 0 var(--space-8);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  border-left: 2px solid var(--border-light);
  padding-left: var(--space-5);
}
.guide-comments-area .comment-body {
  display: flex;
  gap: var(--space-4);
}
.guide-comments-area .comment-author-avatar img {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  flex-shrink: 0;
  border: 2px solid var(--border-light);
}
.guide-comments-area .comment-content-wrap { flex: 1; min-width: 0; }
.guide-comments-area .comment-meta {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-bottom: var(--space-2);
}
.guide-comments-area .comment-author-name { font-size: 0.88rem; font-weight: 700; color: var(--text-primary); }
.guide-comments-area .comment-date { font-size: 0.78rem; color: var(--text-secondary); }
.guide-comments-area .comment-text { font-size: 0.9rem; color: var(--text-secondary); line-height: 1.7; }
.guide-comments-area .comment-text p { margin-bottom: var(--space-3); }
.guide-comments-area .comment-text p:last-child { margin-bottom: 0; }
.guide-comments-area .comment-reply-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  margin-top: var(--space-2);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
  opacity: 0.8;
  transition: opacity var(--transition-fast);
}
.guide-comments-area .comment-reply-link:hover { opacity: 1; }
.guide-comments-area .no-comments {
  text-align: center;
  padding: var(--space-10) var(--space-8);
  color: var(--text-secondary);
  font-size: 0.9rem;
}

/* Comment form inside guide */
.guide-comments-area #respond {
  margin-top: var(--space-8);
  padding-top: var(--space-8);
  border-top: 1px solid var(--border-light);
}
.guide-comments-area #respond h3,
.guide-comments-area #respond .comment-reply-title {
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-6);
}
.guide-comments-area .comment-form label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: var(--space-2);
}
.guide-comments-area .comment-form input[type="text"],
.guide-comments-area .comment-form input[type="email"],
.guide-comments-area .comment-form textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  background: var(--bg-base);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  color: var(--text-primary);
  transition: border-color var(--transition-fast);
  box-sizing: border-box;
}
.guide-comments-area .comment-form input:focus,
.guide-comments-area .comment-form textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0,87,255,0.1);
}
.guide-comments-area .comment-form textarea { min-height: 120px; resize: vertical; }
.guide-comments-area .comment-form p { margin-bottom: var(--space-5); }
.guide-comments-area .comment-form .form-submit { margin-bottom: 0; }
.guide-comments-area .comment-form .submit {
  display: inline-flex;
  align-items: center;
  padding: var(--space-3) var(--space-6);
  min-height: 44px;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-full);
  font-size: 0.9rem;
  font-weight: 700;
  cursor: pointer;
  transition: background var(--transition-fast), transform var(--transition-fast);
}
.guide-comments-area .comment-form .submit:hover { background: var(--color-primary-dark); transform: translateY(-1px); }
.guide-comments-area #cancel-comment-reply-link { font-size: 0.82rem; color: var(--color-primary); text-decoration: none; }
.guide-comments-area #cancel-comment-reply-link:hover { text-decoration: underline; }

/* ---- Sidebar mobile toggle button (hidden on desktop) ---- */
.guide-sidebar-toggle {
  display: none;
}

/* ---- Responsive ---- */
@media (max-width: 1024px) {
  .guide-layout {
    grid-template-columns: 1fr;
  }

  /* Move sidebar above main content on mobile/tablet */
  .guide-sidebar {
    position: static;
    max-height: none;
    overflow-y: visible;
    order: -1;
  }

  /* Show the toggle button */
  .guide-sidebar-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: var(--space-3) var(--space-5);
    background: var(--bg-surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    font-family: var(--font-display);
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--text-secondary);
    cursor: pointer;
    transition: background var(--transition-fast);
  }
  .guide-sidebar-toggle:hover { background: var(--bg-subtle); }
  .guide-sidebar-toggle svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
    fill: none;
    transition: transform 0.25s ease;
  }
  .guide-sidebar.sidebar-open .guide-sidebar-toggle svg {
    transform: rotate(180deg);
  }

  /* Collapsible body — hidden by default on mobile */
  .guide-sidebar-body {
    display: none;
    flex-direction: column;
    gap: var(--space-4);
    padding-top: var(--space-3);
  }
  .guide-sidebar.sidebar-open .guide-sidebar-body {
    display: flex;
  }
}
@media (max-width: 768px) {
  .guide-layout {
    padding: var(--space-3) var(--space-3);
  }
  .guide-hero {
    padding: var(--space-5) var(--space-4);
  }
  .guide-title {
    font-size: clamp(1.25rem, 5.5vw, 1.7rem);
    word-break: break-word;
  }
  .guide-meta-bar {
    gap: var(--space-3);
    row-gap: var(--space-3);
  }
  .guide-meta-item {
    font-size: 0.8rem;
    min-width: 0;
    overflow: hidden;
  }
  .guide-meta-item strong {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 120px;
    display: inline-block;
  }
  .guide-warning-banner {
    padding: var(--space-3) var(--space-4);
  }
  .prerequisites-block {
    padding: var(--space-4);
  }
  .step-header {
    padding: var(--space-4) var(--space-4);
    gap: var(--space-3);
  }
  .step-body-inner {
    padding: 0 var(--space-4) var(--space-5);
    padding-left: var(--space-4);
  }
  .step-number {
    width: 30px;
    height: 30px;
    font-size: 0.8rem;
  }
  .faq-section {
    padding: var(--space-4);
  }
  .success-card {
    padding: var(--space-6) var(--space-4);
  }
  .success-title { font-size: 1.4rem; }
  .success-actions { flex-direction: column; align-items: center; }
}