/* ============================================
   ICOA Selection Guide — page-specific styles
   Depends on: ../../css/variables.css, base.css, components.css, animations.css
   ============================================ */

/* ---- Layout scaffolding ---- */
.sg-main { padding-top: 100px; }
.sg-section { padding: 80px 0; position: relative; }
.sg-section-tight { padding: 48px 0; }
.sg-container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

.sg-anchor-offset { scroll-margin-top: 90px; }

/* ---- Hero ---- */
.sg-hero {
  padding: 60px 0 40px;
  text-align: center;
}
.sg-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.2rem);
  line-height: 1.1;
  margin: 0 0 16px;
  color: var(--ico-text-primary);
}
.sg-hero .sg-subtitle {
  font-size: 1.15rem;
  color: var(--ico-text-secondary);
  margin: 0 0 8px;
}
.sg-hero .sg-meta {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--ico-accent);
  margin: 0 0 24px;
  letter-spacing: 0.03em;
}
.sg-hero .sg-tagline {
  font-size: 1.35rem;
  font-weight: 500;
  margin: 0 0 32px;
  background: var(--ico-gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}
.sg-hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 8px;
}

/* ---- Section headers ---- */
.sg-section h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.5vw, 2.1rem);
  color: var(--ico-text-primary);
  margin: 0 0 12px;
  text-align: center;
}
.sg-section .sg-section-lead {
  color: var(--ico-text-secondary);
  text-align: center;
  max-width: 680px;
  margin: 0 auto 40px;
  font-size: 1.05rem;
}
.sg-section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--ico-accent);
  letter-spacing: 0.15em;
  margin-bottom: 12px;
}

/* ---- OS selector ---- */
.sg-os-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  max-width: 900px;
  margin: 0 auto;
}
@media (max-width: 720px) {
  .sg-os-grid { grid-template-columns: 1fr; }
}
.sg-os-tile {
  background: var(--ico-bg-panel);
  border: 1px solid var(--ico-border-subtle);
  border-radius: 12px;
  padding: 28px 24px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-normal);
  color: var(--ico-text-primary);
  font-family: var(--font-body);
}
.sg-os-tile:hover,
.sg-os-tile:focus-visible {
  border-color: var(--ico-primary);
  transform: translateY(-3px);
  box-shadow: var(--ico-shadow-lg);
  outline: none;
}
.sg-os-tile.is-active {
  border-color: var(--ico-primary);
  background: linear-gradient(135deg, rgba(93,120,255,0.12), rgba(0,217,255,0.06));
  box-shadow: 0 0 0 2px var(--ico-primary-glow), var(--ico-shadow);
}
.sg-os-tile .sg-os-icon {
  width: 48px; height: 48px;
  margin: 0 auto 12px;
  display: block;
}
.sg-os-tile h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin: 0 0 6px;
  letter-spacing: 0.02em;
}
.sg-os-tile p {
  color: var(--ico-text-secondary);
  font-size: 0.95rem;
  margin: 0;
}

/* ---- Install panels ---- */
.sg-install-panel { display: none; }
.sg-install-panel.is-active { display: block; }
.sg-step {
  background: var(--ico-bg-panel);
  border: 1px solid var(--ico-border-subtle);
  border-radius: 12px;
  padding: 28px 28px 20px;
  margin-bottom: 20px;
  position: relative;
}
.sg-step-num {
  position: absolute;
  top: -14px;
  left: 24px;
  background: var(--ico-gradient-primary);
  color: var(--ico-bg-darkest);
  padding: 4px 14px;
  border-radius: 999px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.9rem;
  letter-spacing: 0.1em;
}
.sg-step h3 {
  font-family: var(--font-display);
  color: var(--ico-text-primary);
  font-size: 1.2rem;
  margin: 0 0 14px;
}
.sg-step p,
.sg-step li {
  color: var(--ico-text-secondary);
  line-height: 1.6;
}
.sg-step ul { padding-left: 20px; }

/* ---- Code block with copy button ---- */
.sg-code {
  position: relative;
  background: #1E2028;
  border: 1px solid rgba(93,120,255,0.2);
  border-radius: 8px;
  padding: 14px 56px 14px 16px;
  margin: 12px 0;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.92rem;
  color: #A9B7C6;
}
.sg-code code { background: none; padding: 0; color: inherit; }
.sg-code .sg-copy {
  position: absolute;
  top: 8px;
  right: 8px;
  background: rgba(93,120,255,0.15);
  border: 1px solid rgba(93,120,255,0.4);
  color: #A9B7C6;
  font-family: var(--font-body);
  font-size: 0.8rem;
  padding: 4px 10px;
  border-radius: 4px;
  cursor: pointer;
  transition: all var(--transition-fast);
}
.sg-code .sg-copy:hover {
  background: rgba(93,120,255,0.3);
  color: #fff;
}
.sg-code .sg-copy.is-copied {
  background: rgba(0,255,136,0.2);
  border-color: var(--ico-success);
  color: var(--ico-success);
}

/* ---- Three papers ---- */
.sg-papers {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 900px) {
  .sg-papers { grid-template-columns: 1fr; }
}
.sg-paper {
  background: var(--ico-bg-panel);
  border: 1px solid var(--ico-border-subtle);
  border-top: 4px solid var(--ico-primary);
  border-radius: 10px;
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
}
.sg-paper.sg-paper-c { border-top-color: var(--ico-success); }
.sg-paper.sg-paper-b { border-top-color: var(--ico-warning); }
.sg-paper.sg-paper-a { border-top-color: var(--ico-error); }
.sg-paper h3 {
  font-family: var(--font-display);
  margin: 0 0 4px;
  font-size: 1.35rem;
  color: var(--ico-text-primary);
}
.sg-paper .sg-paper-tag {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--ico-text-secondary);
  margin: 0 0 20px;
  letter-spacing: 0.05em;
}
.sg-paper dl {
  margin: 0;
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 8px 16px;
}
.sg-paper dt {
  color: var(--ico-text-muted);
  font-size: 0.9rem;
}
.sg-paper dd {
  color: var(--ico-text-primary);
  margin: 0;
  font-weight: 500;
  font-size: 0.95rem;
}
.sg-paper-footer {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--ico-border-subtle);
  color: var(--ico-text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}

/* ---- Callout ---- */
.sg-callout {
  margin: 32px auto 0;
  max-width: 820px;
  background: rgba(255, 170, 0, 0.08);
  border: 1px solid rgba(255, 170, 0, 0.4);
  border-left: 4px solid var(--ico-warning);
  border-radius: 6px;
  padding: 18px 22px;
  color: var(--ico-text-primary);
  display: flex;
  gap: 14px;
  align-items: flex-start;
  line-height: 1.55;
}
.sg-callout strong { color: var(--ico-warning); }
.sg-callout p { margin: 0; }
.sg-callout p + p {
  margin-top: 10px;
  font-size: 0.92em;
  color: var(--ico-text-secondary);
  font-style: italic;
  line-height: 1.55;
}
.sg-callout-icon {
  flex-shrink: 0;
  width: 22px; height: 22px;
  margin-top: 2px;
}

/* ---- How to prepare section ---- */
/* Progression ladder: Starter → Advanced → Extra → Training */
.sg-prepare-ladder {
  display: grid;
  grid-template-columns: 1fr 28px 1fr 28px 1fr 28px 1fr;
  gap: 0;
  align-items: stretch;
  max-width: 1100px;
  margin: 0 auto 34px;
}
@media (max-width: 980px) {
  .sg-prepare-ladder {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .sg-ladder-arrow { display: none; }
}
.sg-ladder-step {
  position: relative;
  background: var(--ico-bg-panel);
  border: 1px solid var(--ico-border-subtle);
  border-top: 3px solid var(--ico-primary);
  border-radius: 10px;
  padding: 16px 18px 14px;
  text-decoration: none;
  color: var(--ico-text-primary);
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
}
.sg-ladder-step:hover {
  transform: translateY(-3px);
  border-color: var(--ico-primary);
  box-shadow: var(--ico-shadow);
}
.sg-ladder-step-1 { border-top-color: var(--ico-success); }
.sg-ladder-step-2 { border-top-color: var(--ico-warning); }
.sg-ladder-step-3 { border-top-color: var(--ico-error); }
.sg-ladder-step-4 {
  border-top-color: var(--ico-cat-ai);
  background: linear-gradient(135deg, rgba(107, 63, 160, 0.08), var(--ico-bg-panel));
}
.sg-ladder-step-pending {
  cursor: default;
  opacity: 0.9;
}
.sg-ladder-step-pending:hover {
  transform: none;
  border-color: var(--ico-border-subtle);
  box-shadow: none;
}
.sg-ladder-num {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--ico-accent);
  letter-spacing: 0.15em;
  display: block;
  margin-bottom: 2px;
}
.sg-ladder-step-1 .sg-ladder-num { color: var(--ico-success); }
.sg-ladder-step-2 .sg-ladder-num { color: var(--ico-warning); }
.sg-ladder-step-3 .sg-ladder-num { color: var(--ico-error); }
.sg-ladder-step-4 .sg-ladder-num { color: #d4b3ff; }
.sg-ladder-step h3 {
  font-family: var(--font-display);
  color: var(--ico-text-primary);
  font-size: 1.08rem;
  margin: 0 0 2px;
}
.sg-ladder-tag {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--ico-text-muted);
  margin: 0 0 10px;
  letter-spacing: 0.04em;
}
.sg-ladder-desc {
  color: var(--ico-text-secondary);
  font-size: 0.86rem;
  line-height: 1.5;
  margin: 0 0 12px;
  flex: 1;
}
.sg-ladder-status {
  display: inline-block;
  padding: 2px 9px;
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  border-radius: 3px;
  align-self: flex-start;
  font-family: var(--font-body);
}
.sg-ladder-status.is-live {
  background: rgba(0, 255, 136, 0.1);
  color: var(--ico-success);
  border: 1px solid rgba(0, 255, 136, 0.4);
}
.sg-ladder-status.is-pending {
  background: rgba(107, 63, 160, 0.12);
  color: #d4b3ff;
  border: 1px solid rgba(107, 63, 160, 0.5);
}
.sg-ladder-arrow {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--ico-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.55;
}

.sg-prepare-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  max-width: 900px;
  margin: 0 auto 32px;
}
@media (max-width: 780px) { .sg-prepare-cards { grid-template-columns: 1fr; } }
.sg-prepare-card {
  background: var(--ico-bg-panel);
  border: 1px solid var(--ico-border-subtle);
  border-top: 3px solid var(--ico-primary);
  border-radius: 8px;
  padding: 18px 20px;
}
.sg-prepare-card-c { border-top-color: var(--ico-success); }
.sg-prepare-card-b { border-top-color: var(--ico-warning); }
.sg-prepare-card-a { border-top-color: var(--ico-error); }
.sg-prepare-card h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  margin: 0 0 2px;
  color: var(--ico-text-primary);
}
.sg-prepare-card-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ico-text-muted);
  margin: 0 0 10px;
  letter-spacing: 0.04em;
}
.sg-prepare-card p {
  margin: 0 0 8px;
  color: var(--ico-text-secondary);
  font-size: 0.92rem;
  line-height: 1.5;
}
.sg-prepare-card strong { color: var(--ico-text-primary); }
.sg-prepare-card-link {
  display: inline-block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--ico-accent);
  text-decoration: none;
  letter-spacing: 0.02em;
}
.sg-prepare-card-link:hover {
  color: var(--ico-primary-light);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}
.sg-prepare-card-links {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 10px;
}
.sg-prepare-card-links .sg-prepare-card-link { margin-top: 0; }

/* Study / Practice sub-groups inside a paper card */
.sg-prepare-card-section {
  margin-top: 14px;
  padding-top: 10px;
  border-top: 1px dashed rgba(93, 120, 255, 0.18);
}
.sg-prepare-card-section:first-of-type { border-top: none; padding-top: 12px; }
.sg-prepare-section-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--ico-text-muted);
  margin-bottom: 5px;
  text-transform: uppercase;
  font-weight: 600;
}
.sg-prepare-card-section .sg-prepare-card-link {
  margin-top: 2px;
  display: block;
}
.sg-prepare-cli-tip {
  text-align: center;
  max-width: 720px;
  margin: 4px auto 0;
  color: var(--ico-text-muted);
  font-size: 0.86rem;
  font-style: italic;
  line-height: 1.55;
}
.sg-prepare-cli-tip code {
  font-style: normal;
  background: rgba(0, 0, 0, 0.3);
  padding: 1px 7px;
  border-radius: 3px;
  color: var(--ico-accent);
  font-family: var(--font-mono);
  font-size: 0.88em;
}

/* Paper S badge — purple pill (AI/ML category, matches Step 04 Training PDF) */
.sg-paper-s-badge {
  display: inline-block;
  background: var(--ico-cat-ai);
  color: #ffffff;
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  line-height: 1.3;
  margin-right: 10px;
  vertical-align: middle;
  box-shadow: 0 0 10px rgba(107, 63, 160, 0.35);
}

/* Machine Learning library pill — purple to signal AI / ML category */
code.sg-ml-lib {
  background: rgba(107, 63, 160, 0.18);
  border: 1px solid rgba(107, 63, 160, 0.55);
  color: #d4b3ff;
  padding: 2px 9px;
  border-radius: 4px;
  font-family: var(--font-mono);
  font-weight: 500;
  letter-spacing: 0.02em;
  font-size: 0.9em;
  box-shadow: 0 0 8px rgba(107, 63, 160, 0.15);
}
code.sg-ml-lib:hover {
  background: rgba(107, 63, 160, 0.28);
  box-shadow: 0 0 12px rgba(107, 63, 160, 0.35);
}

.sg-prepare-sydney,
.sg-prepare-winners {
  max-width: 820px;
  margin: 0 auto 24px;
  padding: 18px 22px;
  background: var(--ico-bg-panel);
  border: 1px solid var(--ico-border-subtle);
  border-radius: 8px;
  color: var(--ico-text-secondary);
  line-height: 1.6;
  font-size: 0.95rem;
}
.sg-prepare-sydney h3,
.sg-prepare-winners h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--ico-text-primary);
  margin: 0 0 8px;
  text-align: left;
}
.sg-prepare-sydney strong,
.sg-prepare-winners strong { color: var(--ico-text-primary); }
.sg-prepare-winners-ref {
  background: rgba(0, 217, 255, 0.06);
  border-left: 3px solid var(--ico-accent);
  padding: 12px 16px;
  border-radius: 4px;
  margin-top: 12px;
  font-size: 0.92rem;
  line-height: 1.65;
  color: var(--ico-text-secondary);
}
.sg-prepare-winners-ref cite { color: var(--ico-text-primary); font-style: italic; }
.sg-prepare-winners-ref small {
  display: block;
  margin-top: 6px;
  font-size: 0.88em;
  color: var(--ico-text-muted);
  font-style: italic;
}

.sg-prepare-context {
  max-width: 820px;
  margin: 32px auto;
  color: var(--ico-text-secondary);
  line-height: 1.75;
  font-size: 0.98rem;
}
.sg-prepare-context p { margin: 0 0 14px; }
.sg-prepare-context p:last-child { margin-bottom: 0; }
.sg-prepare-context strong { color: var(--ico-text-primary); }

.sg-three-pillars {
  max-width: 820px;
  margin: 32px auto;
  text-align: center;
}
.sg-three-pillars img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  border: 1px solid var(--ico-border-subtle);
  box-shadow: var(--ico-shadow);
}
.sg-three-pillars figcaption {
  margin-top: 12px;
  color: var(--ico-text-muted);
  font-size: 0.85rem;
  font-style: italic;
  line-height: 1.5;
}

.sg-prepare-commitment {
  max-width: 820px;
  margin: 28px auto 0;
  padding: 20px 24px;
  background: rgba(255, 215, 0, 0.05);
  border: 1px solid rgba(255, 215, 0, 0.3);
  border-left: 4px solid var(--ico-gold);
  border-radius: 8px;
  color: var(--ico-text-secondary);
  line-height: 1.7;
}
.sg-prepare-commitment h3 {
  font-family: var(--font-display);
  color: var(--ico-gold);
  font-size: 1.08rem;
  margin: 0 0 10px;
  text-align: left;
}
.sg-prepare-commitment p { margin: 0; font-size: 0.95rem; }
.sg-prepare-commitment strong { color: var(--ico-text-primary); }
.sg-prepare-commitment code {
  background: rgba(0,0,0,0.35);
  padding: 2px 8px;
  border-radius: 3px;
  color: var(--ico-gold);
  font-family: var(--font-mono);
  font-size: 0.9em;
}
.sg-prepare-commitment a { color: var(--ico-accent); }

.sg-prepare-vision {
  max-width: 820px;
  margin: 28px auto 0;
  padding: 24px 28px;
  text-align: center;
  border: 1px solid rgba(0, 217, 255, 0.3);
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(93,120,255,0.05), rgba(0,217,255,0.05));
}
.sg-prepare-vision h3 {
  font-family: var(--font-display);
  color: var(--ico-accent);
  margin: 0 0 10px;
  font-size: 1.1rem;
  text-align: center;
}
.sg-prepare-vision p {
  color: var(--ico-text-primary);
  font-size: 1rem;
  line-height: 1.65;
  margin: 0;
}

/* ---- Demo-first highlight (end of Section 3) ---- */
.sg-demo-highlight {
  margin: 36px auto 0;
  max-width: 820px;
  background: rgba(0, 255, 136, 0.06);
  border: 1px solid rgba(0, 255, 136, 0.3);
  border-left: 4px solid var(--ico-success);
  border-radius: 6px;
  padding: 20px 24px 18px;
  color: var(--ico-text-primary);
  line-height: 1.6;
}
.sg-demo-highlight h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--ico-success);
  margin: 0 0 8px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.sg-demo-highlight h3 svg { flex-shrink: 0; }
.sg-demo-highlight p {
  margin: 0 0 10px;
  color: var(--ico-text-secondary);
  font-size: 0.95rem;
}
.sg-demo-highlight ul {
  margin: 6px 0 0;
  padding-left: 22px;
  color: var(--ico-text-secondary);
  font-size: 0.93rem;
}
.sg-demo-highlight ul li { margin: 3px 0; }
.sg-demo-highlight code {
  background: rgba(0,0,0,0.35);
  padding: 2px 8px;
  border-radius: 3px;
  color: var(--ico-success);
  font-family: var(--font-mono);
  font-size: 0.9em;
}

/* ---- CLI demo video (real recording) ---- */
.sg-cli-video {
  max-width: 820px;
  margin: 0 auto 32px;
  background: #1E2028;
  border: 1px solid rgba(93,120,255,0.3);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--ico-shadow-lg);
}
.sg-cli-video video {
  display: block;
  width: 100%;
  height: auto;
  background: #000;
}
.sg-cli-video-caption {
  padding: 12px 18px 14px;
  color: var(--ico-text-muted);
  font-size: 0.85rem;
  text-align: center;
  line-height: 1.5;
  border-top: 1px solid rgba(93,120,255,0.15);
  background: rgba(93,120,255,0.03);
}
.sg-cli-video-caption strong { color: var(--ico-text-secondary); }

/* ---- CLI preview ---- */
.sg-cli-preview {
  max-width: 820px;
  margin: 0 auto;
  background: #2B2B2B;
  border: 1px solid rgba(93,120,255,0.3);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: var(--ico-shadow-lg);
}
.sg-cli-bar {
  background: #3C3F41;
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.sg-cli-dot {
  width: 12px; height: 12px; border-radius: 50%;
  display: inline-block;
}
.sg-cli-bar-title {
  color: #A9B7C6;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  margin-left: 12px;
}
.sg-cli-body {
  padding: 22px 24px;
  font-family: var(--font-mono);
  color: #A9B7C6;
  font-size: 0.92rem;
  line-height: 1.55;
  min-height: 320px;
}
.sg-cli-body .sg-cli-green { color: #6A9955; }
.sg-cli-body .sg-cli-yellow { color: #D7BA7D; }
.sg-cli-body .sg-cli-cyan { color: #4EC9B0; }
.sg-cli-body .sg-cli-dim { color: #707070; }
.sg-cli-frame { display: none; }
.sg-cli-frame.is-active { display: block; animation: sgFade 0.35s ease; }
@keyframes sgFade { from { opacity: 0; } to { opacity: 1; } }
.sg-cli-progress {
  display: flex;
  gap: 4px;
  padding: 10px 24px;
  background: #232323;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.sg-cli-progress span {
  flex: 1;
  height: 3px;
  background: rgba(255,255,255,0.15);
  border-radius: 2px;
  transition: background var(--transition-fast);
}
.sg-cli-progress span.is-active { background: var(--ico-primary); }

/* ---- Country selector ---- */
.sg-country {
  max-width: 780px;
  margin: 0 auto;
}
.sg-country-select {
  width: 100%;
  padding: 14px 18px;
  background: var(--ico-bg-panel);
  border: 1px solid var(--ico-border-subtle);
  color: var(--ico-text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  border-radius: 8px;
  cursor: pointer;
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--ico-accent) 50%), linear-gradient(135deg, var(--ico-accent) 50%, transparent 50%);
  background-position: calc(100% - 22px) 20px, calc(100% - 16px) 20px;
  background-size: 6px 6px, 6px 6px;
  background-repeat: no-repeat;
}
.sg-country-select:focus {
  outline: none;
  border-color: var(--ico-primary);
  box-shadow: 0 0 0 3px var(--ico-primary-glow);
}
.sg-country-card {
  margin-top: 20px;
  background: var(--ico-bg-panel);
  border: 1px solid var(--ico-border-subtle);
  border-radius: 10px;
  padding: 28px;
  display: none;
}
.sg-country-card.is-active { display: block; animation: sgFade 0.3s ease; }
.sg-country-card h3 {
  font-family: var(--font-display);
  margin: 0 0 16px;
  color: var(--ico-text-primary);
  font-size: 1.35rem;
  display: flex;
  align-items: center;
  gap: 12px;
}
.sg-country-card dl {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 10px 20px;
  margin: 0 0 20px;
}
@media (max-width: 620px) {
  .sg-country-card dl { grid-template-columns: 1fr; gap: 2px 0; }
  .sg-country-card dd { margin-bottom: 12px; }
}
.sg-country-card dt { color: var(--ico-text-muted); font-size: 0.9rem; }
.sg-country-card dd { color: var(--ico-text-primary); margin: 0; font-size: 0.95rem; }
.sg-country-card .sg-token-box {
  padding: 16px;
  background: rgba(0, 217, 255, 0.06);
  border-left: 3px solid var(--ico-accent);
  border-radius: 4px;
  color: var(--ico-text-secondary);
  line-height: 1.55;
  font-size: 0.95rem;
}
.sg-country-card .sg-token-box code {
  background: rgba(0,0,0,0.3);
  padding: 2px 8px;
  border-radius: 4px;
  color: var(--ico-accent);
  font-family: var(--font-mono);
}
.sg-country-card blockquote {
  margin: 16px 0 0;
  padding: 12px 18px;
  color: var(--ico-text-secondary);
  font-style: italic;
  border-left: 3px solid var(--ico-primary);
  background: rgba(93,120,255,0.05);
  border-radius: 0 4px 4px 0;
}

/* ---- FAQ accordion ---- */
.sg-faq { max-width: 820px; margin: 0 auto; }
.sg-faq-item {
  border: 1px solid var(--ico-border-subtle);
  border-radius: 8px;
  margin-bottom: 12px;
  background: var(--ico-bg-panel);
  overflow: hidden;
}
.sg-faq-q {
  width: 100%;
  background: none;
  border: none;
  color: var(--ico-text-primary);
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 500;
  padding: 18px 22px;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  transition: background var(--transition-fast);
}
.sg-faq-q:hover { background: rgba(93,120,255,0.05); }
.sg-faq-q:focus-visible { outline: 2px solid var(--ico-primary); outline-offset: -2px; }
.sg-faq-q::after {
  content: "+";
  font-family: var(--font-mono);
  color: var(--ico-accent);
  font-size: 1.3rem;
  transition: transform var(--transition-normal);
}
.sg-faq-item.is-open .sg-faq-q::after { content: "−"; }
.sg-faq-a {
  display: none;
  padding: 0 22px 20px;
  color: var(--ico-text-secondary);
  line-height: 1.65;
}
.sg-faq-item.is-open .sg-faq-a { display: block; }
.sg-faq-a code {
  background: rgba(0,0,0,0.3);
  padding: 2px 6px;
  border-radius: 3px;
  color: var(--ico-accent);
  font-family: var(--font-mono);
  font-size: 0.88rem;
}

/* ---- Language switcher (floating top-right of nav) ---- */
.sg-lang {
  position: relative;
  margin-left: 12px;
}
.sg-lang-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(93,120,255,0.1);
  border: 1px solid var(--ico-border-subtle);
  color: var(--ico-text-primary);
  font-family: var(--font-body);
  font-size: 0.9rem;
  padding: 6px 12px;
  border-radius: 20px;
  cursor: pointer;
}
.sg-lang-btn:hover { border-color: var(--ico-primary); }
.sg-lang-menu {
  display: none;
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  background: var(--ico-bg-medium);
  border: 1px solid var(--ico-border-subtle);
  border-radius: 8px;
  padding: 6px;
  min-width: 220px;
  max-height: 60vh;
  overflow-y: auto;
  box-shadow: var(--ico-shadow-lg);
  z-index: 1000;
}
.sg-lang.is-open .sg-lang-menu { display: block; }
.sg-lang-menu a {
  display: block;
  padding: 8px 12px;
  color: var(--ico-text-secondary);
  font-size: 0.9rem;
  border-radius: 4px;
  transition: background var(--transition-fast);
  text-decoration: none;
}
.sg-lang-menu a:hover { background: rgba(93,120,255,0.15); color: var(--ico-text-primary); }
.sg-lang-menu a.is-current { color: var(--ico-accent); background: rgba(0,217,255,0.08); }

/* ---- Toast ---- */
.sg-toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(120%);
  background: var(--ico-bg-medium);
  color: var(--ico-success);
  border: 1px solid var(--ico-success);
  border-radius: 999px;
  padding: 10px 24px;
  font-size: 0.9rem;
  font-family: var(--font-body);
  opacity: 0;
  transition: all 0.25s ease;
  z-index: 1200;
  box-shadow: 0 4px 20px rgba(0,255,136,0.25);
}
.sg-toast.is-visible { opacity: 1; transform: translateX(-50%) translateY(0); }

/* ---- Attribution footer block ---- */
.sg-footer-note {
  max-width: 960px;
  margin: 40px auto 0;
  padding: 24px;
  color: var(--ico-text-muted);
  font-size: 0.85rem;
  line-height: 1.6;
  text-align: center;
  border-top: 1px solid var(--ico-border-subtle);
}
.sg-footer-note a { color: var(--ico-accent); }

/* ---- RTL tweaks ---- */
[dir="rtl"] .sg-code { padding: 14px 16px 14px 56px; }
[dir="rtl"] .sg-code .sg-copy { right: auto; left: 8px; }
[dir="rtl"] .sg-paper dl,
[dir="rtl"] .sg-country-card dl { direction: rtl; }
[dir="rtl"] .sg-lang-menu { right: auto; left: 0; }
[dir="rtl"] .sg-callout { border-left: none; border-right: 4px solid var(--ico-warning); }

/* ---- Roadmap timeline ---- */
.sg-roadmap-timeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  max-width: 1040px;
  margin: 0 auto;
}
@media (max-width: 860px) { .sg-roadmap-timeline { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .sg-roadmap-timeline { grid-template-columns: 1fr; } }
.sg-roadmap-step {
  background: var(--ico-bg-panel);
  border: 1px solid var(--ico-border-subtle);
  border-top: 3px solid var(--ico-primary);
  border-radius: 10px;
  padding: 20px 20px 18px;
  text-align: center;
  transition: transform var(--transition-fast);
}
.sg-roadmap-step:hover { transform: translateY(-2px); }
.sg-roadmap-step-active {
  border-top-color: var(--ico-accent);
  box-shadow: 0 0 0 2px rgba(0, 217, 255, 0.18);
}
.sg-roadmap-step-confirmed { border-top-color: var(--ico-success); }
.sg-roadmap-step-planned { border-top-color: var(--ico-primary-light); }
.sg-roadmap-step-open {
  border-top-color: var(--ico-gold);
  background: linear-gradient(180deg, rgba(255, 215, 0, 0.05), transparent);
}
.sg-roadmap-year {
  font-family: var(--font-display);
  font-size: 1.9rem;
  letter-spacing: 0.02em;
  line-height: 1;
  color: var(--ico-accent);
}
.sg-roadmap-step-confirmed .sg-roadmap-year { color: var(--ico-success); }
.sg-roadmap-step-planned .sg-roadmap-year { color: var(--ico-primary-light); }
.sg-roadmap-step-open .sg-roadmap-year { color: var(--ico-gold); }
.sg-roadmap-flag { font-size: 1.5rem; margin: 8px 0; line-height: 1; }
.sg-roadmap-step h3 {
  font-family: var(--font-display);
  font-size: 0.98rem;
  color: var(--ico-text-primary);
  margin: 4px 0;
  text-align: center;
}
.sg-roadmap-date {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--ico-accent);
  margin: 0 0 8px;
  letter-spacing: 0.03em;
}
.sg-roadmap-step-confirmed .sg-roadmap-date { color: var(--ico-success); }
.sg-roadmap-step-planned .sg-roadmap-date { color: var(--ico-primary-light); }
.sg-roadmap-step-open .sg-roadmap-date { color: var(--ico-gold); }
.sg-roadmap-note {
  font-size: 0.82rem;
  color: var(--ico-text-muted);
  line-height: 1.5;
  margin: 0;
}
.sg-roadmap-pending {
  display: inline-block;
  margin-top: 6px;
  padding: 2px 8px;
  font-size: 0.72rem;
  color: var(--ico-warning);
  background: rgba(255, 170, 0, 0.1);
  border: 1px solid rgba(255, 170, 0, 0.3);
  border-radius: 4px;
  font-family: var(--font-body);
  letter-spacing: 0.03em;
}
.sg-roadmap-email {
  color: var(--ico-gold);
  font-weight: 500;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}
.sg-roadmap-email:hover { color: var(--ico-accent); }

/* ---- Resources grid ---- */
.sg-resources-wrap {
  max-width: 900px;
  margin: 40px auto 0;
}
.sg-resources-heading {
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--ico-text-primary);
  margin: 0 0 16px;
  text-align: center;
}
.sg-resources-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}
@media (max-width: 640px) { .sg-resources-grid { grid-template-columns: 1fr; } }
.sg-resource-card {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: var(--ico-bg-panel);
  border: 1px solid var(--ico-border-subtle);
  border-radius: 8px;
  padding: 16px 18px;
  text-decoration: none;
  color: var(--ico-text-primary);
  transition: all var(--transition-fast);
}
.sg-resource-card:hover {
  border-color: var(--ico-primary);
  transform: translateY(-2px);
}
.sg-resource-icon {
  font-size: 1.7rem;
  flex-shrink: 0;
  line-height: 1;
  margin-top: 2px;
}
.sg-resource-body { flex: 1; min-width: 0; }
.sg-resource-body h3 {
  font-family: var(--font-display);
  font-size: 0.95rem;
  margin: 0 0 4px;
  color: var(--ico-text-primary);
  text-align: left;
}
.sg-resource-meta {
  margin: 0;
  font-size: 0.8rem;
  color: var(--ico-text-muted);
  font-family: var(--font-mono);
  letter-spacing: 0.02em;
}
.sg-resource-status {
  display: inline-block;
  margin-top: 6px;
  padding: 2px 8px;
  font-size: 0.72rem;
  color: var(--ico-warning);
  background: rgba(255, 170, 0, 0.1);
  border: 1px solid rgba(255, 170, 0, 0.3);
  border-radius: 4px;
  font-family: var(--font-body);
  letter-spacing: 0.03em;
}
.sg-resource-placeholder {
  cursor: default;
  opacity: 0.88;
  pointer-events: none;
}
.sg-resource-featured {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, rgba(255,107,107,0.05), rgba(255,215,0,0.05));
  border: 1px solid rgba(255,215,0,0.4);
  border-left: 4px solid var(--ico-gold);
  padding: 22px 26px 22px 26px;
  position: relative;
}
.sg-resource-featured:hover { border-color: var(--ico-gold); }
.sg-resource-featured .sg-resource-icon { font-size: 2.2rem; }
.sg-resource-featured .sg-resource-body h3 { font-size: 1.1rem; }
.sg-resource-featured-badge {
  position: absolute;
  top: 14px;
  right: 16px;
  background: var(--ico-gold);
  color: var(--ico-bg-darkest);
  font-family: var(--font-body);
  font-size: 0.66rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  line-height: 1.3;
  z-index: 2;
}

/* PDF icon (SVG document + PDF tag) for the featured card */
.sg-resource-icon.sg-resource-icon-pdf {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  color: var(--ico-error);
  font-size: initial;
  line-height: 1;
  margin-top: 0;
}
.sg-resource-icon-pdf svg { display: block; }
.sg-pdf-tag {
  font-family: var(--font-body);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--ico-bg-darkest);
  background: var(--ico-error);
  padding: 2px 7px;
  border-radius: 3px;
  line-height: 1.2;
}

/* Orbiting ball around the featured card border */
.sg-resource-featured { overflow: visible; }
.sg-resource-featured::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--ico-gold);
  box-shadow:
    0 0 8px var(--ico-gold),
    0 0 18px rgba(255, 215, 0, 0.7),
    0 0 28px rgba(255, 215, 0, 0.35);
  offset-path: inset(0 round 8px);
  animation: sgOrbitFeatured 4.5s linear infinite;
  pointer-events: none;
  z-index: 3;
}
@keyframes sgOrbitFeatured {
  from { offset-distance: 0%; }
  to   { offset-distance: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  .sg-resource-featured::before {
    animation: none;
    opacity: 0.7;
    top: -5px;
    left: calc(50% - 5px);
  }
}
@media (max-width: 640px) {
  .sg-resource-featured-badge {
    position: static;
    display: inline-block;
    margin-top: 8px;
  }
}
.sg-resources-note {
  text-align: center;
  margin: 20px auto 0;
  color: var(--ico-text-muted);
  font-size: 0.85rem;
}
.sg-resources-note a { color: var(--ico-accent); }

/* ---- Future Plan section (GA + Founder Country + visa) ---- */
.sg-future-intro {
  max-width: 820px;
  margin: 0 auto 28px;
  padding: 18px 24px;
  background: rgba(93, 120, 255, 0.05);
  border-left: 3px solid var(--ico-primary);
  border-radius: 4px;
  color: var(--ico-text-secondary);
  line-height: 1.7;
  font-size: 0.98rem;
}
.sg-future-intro p { margin: 0; }
.sg-future-intro strong { color: var(--ico-text-primary); }

.sg-future-assets {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 14px;
  max-width: 820px;
  margin: 0 auto 26px;
}
.sg-future-card {
  display: flex;
  gap: 16px;
  align-items: center;
  background: var(--ico-bg-panel);
  border: 1px solid var(--ico-border-subtle);
  border-radius: 8px;
  padding: 16px 20px;
  text-decoration: none;
  color: var(--ico-text-primary);
  transition: all var(--transition-fast);
}
.sg-future-card:not(.sg-future-placeholder):hover {
  border-color: var(--ico-primary);
  transform: translateY(-2px);
}
.sg-future-card.sg-future-placeholder {
  cursor: default;
  pointer-events: none;
  opacity: 0.9;
}
.sg-future-icon {
  font-size: 2rem;
  line-height: 1;
  flex-shrink: 0;
}
.sg-future-body { flex: 1; min-width: 0; }
.sg-future-body h3 {
  font-family: var(--font-display);
  margin: 0 0 3px;
  font-size: 1rem;
  color: var(--ico-text-primary);
}
.sg-future-meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--ico-text-muted);
}
.sg-future-status {
  display: inline-block;
  margin-top: 5px;
  padding: 2px 8px;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--ico-warning);
  background: rgba(255, 170, 0, 0.1);
  border: 1px solid rgba(255, 170, 0, 0.4);
  border-radius: 3px;
}

.sg-future-benefits {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 14px;
  max-width: 900px;
  margin: 0 auto;
}
.sg-benefit-card {
  background: var(--ico-bg-panel);
  border: 1px solid var(--ico-border-subtle);
  border-radius: 8px;
  padding: 18px 22px;
}
.sg-benefit-founder {
  border-left: 4px solid var(--ico-gold);
  background: linear-gradient(135deg, rgba(255, 215, 0, 0.05), var(--ico-bg-panel));
}
.sg-benefit-visa {
  border-left: 4px solid var(--ico-warning);
  background: linear-gradient(135deg, rgba(255, 170, 0, 0.05), var(--ico-bg-panel));
}
.sg-benefit-card h3 {
  font-family: var(--font-display);
  font-size: 1.02rem;
  margin: 0 0 8px;
  text-align: left;
}
.sg-benefit-founder h3 { color: var(--ico-gold); }
.sg-benefit-visa h3 { color: var(--ico-warning); }
.sg-benefit-card p {
  margin: 0;
  color: var(--ico-text-secondary);
  line-height: 1.6;
  font-size: 0.93rem;
}
.sg-benefit-card strong { color: var(--ico-text-primary); }

.sg-future-contact {
  text-align: center;
  margin: 26px auto 0;
  color: var(--ico-text-muted);
  font-size: 0.9rem;
}
.sg-future-contact a { color: var(--ico-accent); }

/* ---- Windows two-path layout (Section 3) ---- */
.sg-windows-intro {
  background: rgba(0, 217, 255, 0.06);
  border-left: 3px solid var(--ico-accent);
  padding: 14px 18px;
  border-radius: 4px;
  margin-bottom: 28px;
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--ico-text-secondary);
}
.sg-windows-intro strong { color: var(--ico-text-primary); }
.sg-windows-heading {
  font-family: var(--font-display);
  color: var(--ico-text-primary);
  font-size: 1.15rem;
  margin: 8px 0 4px;
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.sg-windows-heading-alt {
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px dashed var(--ico-border-subtle);
}
.sg-windows-sub {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--ico-text-muted);
  margin: 0 0 16px;
  letter-spacing: 0.02em;
  line-height: 1.5;
}
.sg-recommend-badge,
.sg-beginner-badge {
  font-family: var(--font-body);
  font-size: 0.68rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  line-height: 1.2;
}
.sg-recommend-badge {
  background: var(--ico-accent);
  color: var(--ico-bg-darkest);
}
.sg-beginner-badge {
  background: rgba(0, 255, 136, 0.12);
  color: var(--ico-success);
  border: 1px solid rgba(0, 255, 136, 0.35);
}
.sg-windows-note {
  margin-top: 22px;
  padding: 12px 16px;
  background: rgba(255, 170, 0, 0.06);
  border-left: 3px solid var(--ico-warning);
  border-radius: 4px;
  color: var(--ico-text-secondary);
  font-size: 0.9rem;
  line-height: 1.5;
}
.sg-windows-note strong { color: var(--ico-warning); }

/* ---- Inline language showcase (before OS selector) ---- */
.sg-lang-section {
  padding: 28px 0 32px;
}
.sg-lang-header {
  text-align: center;
  margin-bottom: 18px;
}
.sg-lang-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2.4vw, 1.45rem);
  line-height: 1.3;
  margin: 6px 0 0;
  color: var(--ico-text-primary);
  text-align: center;
}
.sg-lang-showcase {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 16px;
  align-items: stretch;
  max-width: 820px;
  margin: 0 auto;
}
@media (max-width: 720px) {
  .sg-lang-showcase { grid-template-columns: 1fr; gap: 12px; }
}
.sg-lang-picker {
  background: var(--ico-bg-panel);
  border: 1px solid var(--ico-border-subtle);
  border-radius: 8px;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.sg-lang-picker label {
  display: block;
  color: var(--ico-text-primary);
  font-size: 0.95rem;
  font-weight: 500;
  margin: 0 0 10px;
  letter-spacing: 0;
  font-family: var(--font-body);
  line-height: 1.4;
}
.sg-lang-picker label .sg-lang-picker-icon {
  margin-right: 4px;
}
.sg-lang-picker-hint {
  margin: 10px 0 0;
  color: var(--ico-text-muted);
  font-size: 0.78rem;
  line-height: 1.45;
}
.sg-lang-picker .sg-country-select {
  padding: 10px 14px;
  font-size: 0.92rem;
}
.sg-lang-terminal {
  background: #2B2B2B;
  border: 1px solid rgba(93,120,255,0.3);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: var(--ico-shadow);
  min-height: 130px;
  display: flex;
  flex-direction: column;
}
.sg-lang-terminal .sg-cli-bar { padding: 6px 12px; }
.sg-lang-terminal .sg-cli-bar-title { font-size: 0.78rem; }
.sg-lang-log {
  padding: 12px 16px;
  font-family: var(--font-mono);
  color: #A9B7C6;
  font-size: 0.85rem;
  line-height: 1.5;
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  overflow: hidden;
}
.sg-lang-entry {
  animation: sgSlideUp 0.4s ease;
  margin-bottom: 8px;
}
.sg-lang-entry:last-child { margin-bottom: 0; }
@keyframes sgSlideUp {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}
.sg-lang-cmd, .sg-lang-output { color: #A9B7C6; }
.sg-lang-footnote {
  max-width: 720px;
  margin: 14px auto 0;
  text-align: center;
  color: var(--ico-text-muted);
  font-size: 0.82rem;
  line-height: 1.5;
  font-style: italic;
}
.sg-lang-footnote strong {
  color: var(--ico-accent);
  font-style: normal;
  font-weight: 500;
}
@media (prefers-reduced-motion: reduce) {
  .sg-lang-entry { animation: none; }
}

/* ---- Stub locale notice ---- */
.sg-stub-notice {
  max-width: 680px;
  margin: 60px auto;
  padding: 32px;
  background: var(--ico-bg-panel);
  border: 1px solid var(--ico-border-subtle);
  border-radius: 12px;
  text-align: center;
}
.sg-stub-notice h2 {
  font-family: var(--font-display);
  color: var(--ico-text-primary);
  margin-top: 0;
}
.sg-stub-notice p {
  color: var(--ico-text-secondary);
  line-height: 1.6;
}
.sg-stub-notice .btn { margin-top: 12px; }