/* ===== GUIDE LAYOUT ===== */
html {
  scroll-padding-top: 80px;
  scroll-behavior: smooth;
}

.guide-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.guide {
  display: flex;
  margin-top: 60px;
  flex: 1;
}

/* ===== SIDEBAR ===== */
.guide__sidebar {
  position: fixed;
  top: 60px;
  left: 0;
  bottom: 0;
  width: 200px;
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  padding: 1.5rem 1rem;
  overflow-y: auto;
}

.guide__nav {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.guide__link {
  display: block;
  padding: 0.45rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: all 0.15s;
  position: relative;
}
.guide__link::before {
  content: '';
  width: 3px;
  height: 0;
  background: var(--accent);
  border-radius: 2px;
  position: absolute;
  left: -4px;
  top: 50%;
  transform: translateY(-50%);
  transition: height 0.2s var(--ease);
}
.guide__link:hover {
  color: var(--text-primary);
  background: var(--accent-subtle);
}
.guide__link.active {
  color: var(--accent);
  background: var(--accent-subtle);
}
.guide__link.active::before {
  height: 14px;
}

/* ===== CONTENT ===== */
.guide__content {
  margin-left: 200px;
  padding: 1.5rem 2.5rem 3rem;
  max-width: 720px;
  flex: 1;
}

/* ===== SECTIONS ===== */
.g-section {
  padding-bottom: 1.5rem;
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}
.g-section:last-child {
  border-bottom: none;
}

.g-section__title {
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.6rem;
}

.g-section p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 0.6rem;
}

/* ===== ABOUT SECTION ===== */
.g-about__tagline {
  font-family: var(--font-display);
  font-size: 1.15rem !important;
  font-weight: 500;
  color: var(--text-primary) !important;
  letter-spacing: -0.01em;
  line-height: 1.4 !important;
  margin-bottom: 0.75rem !important;
}

.g-about__callout {
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
  background: var(--accent-subtle);
  border: 1px solid var(--accent-border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  margin-top: 0.5rem;
}
.g-about__callout p {
  margin-bottom: 0 !important;
  font-size: 0.85rem !important;
}
.g-about__callout strong {
  color: var(--text-primary);
}
.g-about__callout-icon {
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 1px;
}

.g-about__stat {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-top: 0.75rem;
}
.g-about__stat-value {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: -0.02em;
}
.g-about__stat-label {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ===== LISTS ===== */
.g-list {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0;
}
.g-list li {
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding: 0.2rem 0 0.2rem 1rem;
  position: relative;
  line-height: 1.5;
}
.g-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55rem;
  width: 4px;
  height: 4px;
  background: var(--accent);
  border-radius: 50%;
}
.g-list li strong {
  color: var(--text-primary);
}

/* ===== ORDERED STEPS ===== */
.g-steps {
  list-style: none;
  padding: 0;
  margin: 0.5rem 0;
  counter-reset: step;
}
.g-steps li {
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding: 0.25rem 0 0.25rem 1.6rem;
  position: relative;
  line-height: 1.5;
  counter-increment: step;
}
.g-steps li::before {
  content: counter(step);
  position: absolute;
  left: 0;
  top: 0.2rem;
  width: 18px;
  height: 18px;
  background: var(--accent-subtle);
  border: 1px solid var(--accent-border);
  border-radius: 50%;
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ===== CODE ===== */
.g-section code {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  background: var(--bg-card);
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  color: var(--accent);
  border: 1px solid var(--border);
}

/* ===== NOTE ===== */
.g-note {
  font-size: 0.8rem !important;
  color: var(--text-muted) !important;
  margin-top: 0.5rem;
}

/* ===== KEY BADGES ===== */
.g-keys {
  display: flex;
  gap: 1rem;
  margin-top: 0.75rem;
}
.g-key {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.g-key kbd {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-bottom-width: 2px;
  border-radius: 4px;
  padding: 0.2rem 0.5rem;
  color: var(--text-primary);
}
.g-key span {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ===== TABLE ===== */
.g-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.82rem;
  margin: 0.5rem 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.g-table th,
.g-table td {
  padding: 0.5rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}
.g-table tr:last-child td {
  border-bottom: none;
}
.g-table thead {
  background: var(--bg-card);
}
.g-table th {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.g-table td {
  color: var(--text-secondary);
}
.g-table__highlight td {
  color: var(--text-primary);
  font-weight: 500;
}

/* ===== FAQ ===== */
.g-faq {
  border-bottom: 1px solid var(--border);
}
.g-faq__q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 0;
  background: none;
  border: none;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  text-align: left;
  gap: 0.75rem;
  transition: color 0.15s;
}
.g-faq__q:hover {
  color: var(--accent);
}

.g-faq__chevron {
  color: var(--text-muted);
  flex-shrink: 0;
  transition: transform 0.25s var(--ease);
}
.g-faq.open .g-faq__chevron {
  transform: rotate(180deg);
  color: var(--accent);
}

.g-faq__a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s var(--ease);
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
}
.g-faq.open .g-faq__a {
  max-height: 200px;
  padding-bottom: 0.6rem;
}
.g-faq__a code {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  background: var(--bg-card);
  padding: 0.1rem 0.35rem;
  border-radius: 4px;
  color: var(--accent);
  border: 1px solid var(--border);
}

/* ===== ABOUT VISUALIZER ===== */
.g-visualizer {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.g-visualizer__btn {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 2px solid var(--accent-border);
  background: var(--accent-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.g-visualizer__btn--record {
  border-color: var(--accent);
  box-shadow: 0 0 10px rgba(196, 138, 63, 0.12);
}

.g-visualizer__btn-inner {
  width: 12px;
  height: 12px;
  background: var(--accent);
  border-radius: 3px;
  animation: recordPulse 2s ease-in-out infinite;
}

@keyframes recordPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

.g-visualizer__btn--settings {
  color: var(--accent);
}

.g-visualizer__waveform {
  flex: 1;
  height: 38px;
  position: relative;
  overflow: hidden;
}

.g-visualizer__waveform canvas {
  display: block;
  width: 100%;
  height: 100%;
}

/* ===== BUTTON SMALL ===== */
.btn--sm {
  padding: 0.5rem 1.1rem;
  font-size: 0.82rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .guide__sidebar {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    bottom: auto;
    width: 100%;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding: 0.75rem 1rem;
    z-index: 50;
    background: var(--bg-surface);
  }
  .guide__nav {
    flex-direction: row;
    gap: 0;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  .guide__link {
    white-space: nowrap;
    padding: 0.35rem 0.6rem;
    font-size: 0.78rem;
  }
  .guide__link::before { display: none; }

  .guide__content {
    margin-left: 0;
    margin-top: 48px;
    padding: 1.25rem 1.25rem 2rem;
  }

  .g-keys { flex-direction: column; gap: 0.5rem; }
}