/* ThreadSense user guide — documentation layout */
.guide-page {
  padding-top: var(--ts-nav-h);
  min-height: 100vh;
}

.guide-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
}

.guide-bg__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  opacity: 0.35;
}

.guide-bg__orb--1 {
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(24, 119, 242, 0.5), transparent 70%);
  top: -80px;
  right: -60px;
}

.guide-bg__orb--2 {
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, rgba(99, 102, 241, 0.35), transparent 70%);
  bottom: 20%;
  left: -80px;
}

.guide-layout {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  gap: 2.5rem;
  align-items: start;
  padding: 2rem 0 4rem;
}

.guide-sidebar {
  position: sticky;
  top: calc(var(--ts-nav-h) + 1.25rem);
  max-height: calc(100vh - var(--ts-nav-h) - 2.5rem);
  overflow-y: auto;
  padding: 1.25rem;
  border-radius: var(--ts-radius);
  border: 1px solid var(--ts-border);
  background: var(--ts-bg-card);
  backdrop-filter: blur(12px);
}

.guide-sidebar__label {
  margin: 0 0 0.75rem;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--ts-muted);
}

.guide-toc {
  list-style: none;
  margin: 0;
  padding: 0;
}

.guide-toc a {
  display: block;
  padding: 0.4rem 0.5rem;
  margin: 0 -0.5rem;
  border-radius: 8px;
  font-size: 0.88rem;
  color: var(--ts-muted);
  border-left: 2px solid transparent;
  transition: color 0.2s, background 0.2s, border-color 0.2s;
}

.guide-toc a:hover {
  color: var(--ts-text);
  background: rgba(255, 255, 255, 0.04);
}

.guide-toc a.is-active {
  color: #fff;
  border-left-color: var(--ts-fb);
  background: rgba(24, 119, 242, 0.12);
}

.guide-toc li + li {
  margin-top: 0.15rem;
}

.guide-main {
  min-width: 0;
  max-width: 52rem;
}

.guide-hero {
  margin-bottom: 2.5rem;
  padding: 2rem 2.25rem;
  border-radius: calc(var(--ts-radius) + 4px);
  border: 1px solid var(--ts-border);
  background: linear-gradient(145deg, rgba(24, 119, 242, 0.12), rgba(99, 102, 241, 0.08));
  position: relative;
  overflow: hidden;
}

.guide-hero::after {
  content: "";
  position: absolute;
  inset: auto -20% -40% auto;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.25), transparent 65%);
  pointer-events: none;
}

.guide-hero__eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: #93c5fd;
  margin-bottom: 0.75rem;
}

.guide-hero__eyebrow span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 12px rgba(34, 197, 94, 0.8);
  animation: guide-pulse 2s ease-in-out infinite;
}

@keyframes guide-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

.guide-hero h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.75rem, 4vw, 2.35rem);
  letter-spacing: -0.03em;
  line-height: 1.15;
  position: relative;
}

.guide-hero__lead {
  margin: 0;
  color: var(--ts-muted);
  font-size: 1.05rem;
  max-width: 38rem;
  position: relative;
}

.guide-hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  margin-top: 1.25rem;
  font-size: 0.88rem;
  color: var(--ts-muted);
  position: relative;
}

.guide-hero__meta strong {
  color: var(--ts-text);
}

.guide-main h2 {
  margin: 2.75rem 0 1rem;
  padding-top: 0.5rem;
  font-size: 1.45rem;
  letter-spacing: -0.02em;
  scroll-margin-top: calc(var(--ts-nav-h) + 1rem);
  border-bottom: 1px solid var(--ts-border);
  padding-bottom: 0.5rem;
}

.guide-main h3 {
  margin: 1.75rem 0 0.65rem;
  font-size: 1.12rem;
  color: #f1f5f9;
}

.guide-main h4 {
  margin: 1.25rem 0 0.5rem;
  font-size: 1rem;
  color: #cbd5e1;
}

.guide-main p,
.guide-main li {
  color: #c8d2e0;
}

.guide-main ul,
.guide-main ol {
  padding-left: 1.35rem;
}

.guide-main li + li {
  margin-top: 0.35rem;
}

.guide-main code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  background: rgba(255, 255, 255, 0.08);
  padding: 0.12rem 0.4rem;
  border-radius: 6px;
  font-size: 0.9em;
  color: #e2e8f0;
}

.guide-main pre {
  background: rgba(0, 0, 0, 0.45);
  border: 1px solid var(--ts-border);
  color: #e2e8f0;
  padding: 1rem 1.15rem;
  overflow-x: auto;
  border-radius: 10px;
  font-size: 0.88em;
}

.guide-main pre code {
  background: none;
  padding: 0;
}

.guide-main table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.25rem 0;
  font-size: 0.92em;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--ts-border);
}

.guide-main th,
.guide-main td {
  padding: 0.65rem 0.85rem;
  text-align: left;
  vertical-align: top;
  border-bottom: 1px solid var(--ts-border);
}

.guide-main th {
  background: rgba(255, 255, 255, 0.06);
  color: #f1f5f9;
  font-weight: 600;
}

.guide-main tr:last-child td {
  border-bottom: none;
}

.guide-main .muted {
  color: var(--ts-muted);
  font-size: 0.92em;
}

.guide-main .badge {
  font-weight: 600;
  color: #f8fafc;
}

.notice {
  padding: 1rem 1.15rem;
  background: rgba(234, 179, 8, 0.1);
  border: 1px solid rgba(234, 179, 8, 0.35);
  border-radius: 10px;
  margin: 1.25rem 0;
  font-size: 0.95em;
  color: #fde68a;
}

.notice strong {
  color: #fef3c7;
}

.notice--info {
  background: rgba(59, 130, 246, 0.1);
  border-color: rgba(59, 130, 246, 0.35);
  color: #bfdbfe;
}

.notice--info strong {
  color: #dbeafe;
}

/* Illustrated blocks */
.guide-visual {
  margin: 1.75rem 0 2rem;
  border-radius: var(--ts-radius);
  border: 1px solid var(--ts-border);
  background: var(--ts-bg-card);
  overflow: hidden;
}

.guide-visual__caption {
  margin: 0;
  padding: 0.65rem 1rem;
  font-size: 0.8rem;
  color: var(--ts-muted);
  border-top: 1px solid var(--ts-border);
  background: rgba(0, 0, 0, 0.2);
}

.guide-visual__body {
  padding: 1.25rem 1.5rem;
}

/* Quick-start steps */
.step-flow {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  counter-reset: step;
}

.step-flow__item {
  position: relative;
  padding: 1rem 1rem 1rem 2.75rem;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--ts-border);
  min-height: 5.5rem;
}

.step-flow__item::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0.85rem;
  top: 1rem;
  width: 1.65rem;
  height: 1.65rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 0.8rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--ts-fb), var(--ts-accent-2));
  color: #fff;
}

.step-flow__item strong {
  display: block;
  font-size: 0.92rem;
  margin-bottom: 0.25rem;
  color: #f1f5f9;
}

.step-flow__item span {
  font-size: 0.82rem;
  color: var(--ts-muted);
  line-height: 1.45;
}

.step-flow__connector {
  display: none;
}

/* Axis legend */
.axis-legend {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
}

.axis-legend__item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  border-radius: 10px;
  border: 1px solid var(--ts-border);
  background: rgba(0, 0, 0, 0.15);
}

.axis-legend__swatch {
  width: 10px;
  height: 10px;
  border-radius: 3px;
  margin-top: 0.35rem;
  flex-shrink: 0;
}

.axis-legend__item--rude .axis-legend__swatch { background: var(--ts-rude); box-shadow: 0 0 12px rgba(249, 115, 22, 0.5); }
.axis-legend__item--pattern .axis-legend__swatch { background: var(--ts-pattern); box-shadow: 0 0 12px rgba(168, 85, 247, 0.5); }
.axis-legend__item--scam .axis-legend__swatch { background: var(--ts-scam); box-shadow: 0 0 12px rgba(20, 184, 166, 0.5); }
.axis-legend__item--fake .axis-legend__swatch { background: var(--ts-fake); box-shadow: 0 0 12px rgba(59, 130, 246, 0.5); }

.axis-legend__item strong {
  display: block;
  font-size: 0.9rem;
  color: #f1f5f9;
}

.axis-legend__item p {
  margin: 0.2rem 0 0;
  font-size: 0.82rem;
  color: var(--ts-muted);
  line-height: 1.4;
}

/* Badge showcase */
.badge-showcase {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
  margin-bottom: 1rem;
}

.badge-pill {
  display: inline-block;
  padding: 0.28rem 0.55rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  animation: badge-float 4s ease-in-out infinite;
}

.badge-pill--rude { background: rgba(249, 115, 22, 0.2); color: #fdba74; border: 1px solid rgba(249, 115, 22, 0.35); }
.badge-pill--pattern { background: rgba(168, 85, 247, 0.2); color: #d8b4fe; border: 1px solid rgba(168, 85, 247, 0.35); animation-delay: 0.3s; }
.badge-pill--scam { background: rgba(20, 184, 166, 0.2); color: #5eead4; border: 1px solid rgba(20, 184, 166, 0.35); animation-delay: 0.6s; }
.badge-pill--fake { background: rgba(59, 130, 246, 0.2); color: #93c5fd; border: 1px solid rgba(59, 130, 246, 0.35); animation-delay: 0.9s; }
.badge-pill--neutral { background: rgba(148, 163, 184, 0.15); color: #94a3b8; border: 1px solid rgba(148, 163, 184, 0.3); }

@keyframes badge-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-3px); }
}

/* Comment + popover mock */
.mock-feed {
  border-radius: 12px;
  border: 1px solid var(--ts-border);
  background: rgba(15, 22, 40, 0.9);
  padding: 1rem;
  position: relative;
}

.mock-feed__comment {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
}

.mock-feed__avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, #334155, #475569);
  flex-shrink: 0;
}

.mock-feed__lines {
  flex: 1;
}

.mock-feed__line {
  height: 8px;
  border-radius: 4px;
  background: rgba(148, 163, 184, 0.25);
  margin-bottom: 0.45rem;
}

.mock-feed__line--short { width: 45%; }
.mock-feed__line--med { width: 72%; }

.mock-popover {
  margin-top: 1rem;
  margin-left: 2.5rem;
  padding: 1rem;
  border-radius: 12px;
  border: 1px solid rgba(59, 130, 246, 0.4);
  background: rgba(7, 11, 20, 0.95);
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.45);
  max-width: 320px;
  animation: popover-in 0.6s ease-out;
}

@keyframes popover-in {
  from { opacity: 0; transform: translateY(8px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.mock-popover__title {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ts-muted);
  margin-bottom: 0.65rem;
}

.mock-popover__scores {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}

.mock-score {
  padding: 0.45rem 0.55rem;
  border-radius: 8px;
  font-size: 0.75rem;
  border: 1px solid var(--ts-border);
}

.mock-score--rude { border-color: rgba(249, 115, 22, 0.4); color: #fdba74; }
.mock-score--pattern { border-color: rgba(168, 85, 247, 0.4); color: #d8b4fe; }
.mock-score--scam { border-color: rgba(20, 184, 166, 0.4); color: #5eead4; }
.mock-score--fake { border-color: rgba(59, 130, 246, 0.4); color: #93c5fd; }

/* Popup mock */
.mock-popup {
  max-width: 280px;
  margin: 0 auto;
  border-radius: 14px;
  border: 1px solid var(--ts-border);
  background: #0f1628;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

.mock-popup__head {
  padding: 0.85rem 1rem;
  background: linear-gradient(135deg, rgba(24, 119, 242, 0.25), rgba(99, 102, 241, 0.2));
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 0.9rem;
}

.mock-popup__head img {
  width: 24px;
  height: 24px;
  border-radius: 6px;
}

.mock-popup__stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.35rem;
  padding: 0.75rem 1rem;
  text-align: center;
  font-size: 0.72rem;
}

.mock-popup__stat strong {
  display: block;
  font-size: 1.1rem;
  color: #f1f5f9;
}

.mock-popup__stat span {
  color: var(--ts-muted);
}

.mock-popup__toggles {
  padding: 0 1rem 1rem;
  font-size: 0.78rem;
}

.mock-popup__row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.45rem 0;
  border-top: 1px solid var(--ts-border);
  color: var(--ts-muted);
}

.mock-toggle {
  width: 36px;
  height: 20px;
  border-radius: 999px;
  background: var(--ts-fb);
  position: relative;
}

.mock-toggle::after {
  content: "";
  position: absolute;
  right: 3px;
  top: 3px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #fff;
}

.mock-toggle--off {
  background: #334155;
}

.mock-toggle--off::after {
  right: auto;
  left: 3px;
}

/* Settings categories grid */
.settings-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.65rem;
}

.settings-grid__card {
  padding: 0.75rem;
  border-radius: 10px;
  border: 1px solid var(--ts-border);
  background: rgba(255, 255, 255, 0.03);
  font-size: 0.8rem;
  text-align: center;
  color: var(--ts-muted);
  transition: border-color 0.25s, transform 0.25s;
}

.settings-grid__card:hover {
  border-color: rgba(59, 130, 246, 0.45);
  transform: translateY(-2px);
  color: #e2e8f0;
}

.settings-grid__card strong {
  display: block;
  color: #f1f5f9;
  font-size: 0.85rem;
  margin-bottom: 0.2rem;
}

/* Profile hover animation */
.hover-demo {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 1rem;
  align-items: center;
}

.hover-demo__panel {
  padding: 1rem;
  border-radius: 10px;
  border: 1px solid var(--ts-border);
  text-align: center;
  font-size: 0.85rem;
  color: var(--ts-muted);
}

.hover-demo__arrow {
  font-size: 1.5rem;
  color: var(--ts-fb);
  animation: arrow-pulse 1.5s ease-in-out infinite;
}

@keyframes arrow-pulse {
  0%, 100% { opacity: 0.5; transform: translateX(0); }
  50% { opacity: 1; transform: translateX(4px); }
}

.hover-demo__card {
  padding: 0.75rem;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px dashed rgba(59, 130, 246, 0.5);
  animation: card-glow 2s ease-in-out infinite;
}

@keyframes card-glow {
  0%, 100% { box-shadow: 0 0 0 rgba(59, 130, 246, 0); }
  50% { box-shadow: 0 0 20px rgba(59, 130, 246, 0.25); }
}

/* Feature chips for display tools */
.feature-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.feature-chip {
  padding: 0.4rem 0.75rem;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 600;
  border: 1px solid var(--ts-border);
  background: rgba(255, 255, 255, 0.04);
  color: #cbd5e1;
}

/* Level bands */
.level-bands {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.65rem;
  margin: 1rem 0;
}

.level-band {
  padding: 0.85rem;
  border-radius: 10px;
  text-align: center;
  border: 1px solid var(--ts-border);
  font-size: 0.85rem;
}

.level-band strong {
  display: block;
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.level-band--low { background: rgba(34, 197, 94, 0.1); border-color: rgba(34, 197, 94, 0.35); color: #86efac; }
.level-band--med { background: rgba(234, 179, 8, 0.1); border-color: rgba(234, 179, 8, 0.35); color: #fde047; }
.level-band--high { background: rgba(239, 68, 68, 0.1); border-color: rgba(239, 68, 68, 0.35); color: #fca5a5; }

/* Reveal */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .badge-pill,
  .hover-demo__arrow,
  .hover-demo__card,
  .mock-popover,
  .guide-hero__eyebrow span {
    animation: none;
  }
}

@media (max-width: 1024px) {
  .guide-layout {
    grid-template-columns: 1fr;
  }
  .guide-sidebar {
    position: static;
    max-height: none;
  }
  .step-flow {
    grid-template-columns: 1fr 1fr;
  }
  .settings-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .step-flow,
  .axis-legend,
  .level-bands,
  .settings-grid {
    grid-template-columns: 1fr;
  }
  .hover-demo {
    grid-template-columns: 1fr;
  }
  .hover-demo__arrow {
    transform: rotate(90deg);
  }
  .guide-hero {
    padding: 1.5rem;
  }
}