/**
 * Toolsyte US State Shape Quiz Landing Page Styles
 * Scoped styling for /tools/quiz/us-state-shape-quiz/
 * Aligned with Toolsyte Quiz family design language
 */

/* Scoped Color Tokens */
:root, .ussq-tool-page {
  --ussq-indigo: #4f46e5;
  --ussq-indigo-dark: #3730a3;
  --ussq-blue: #2563eb;
  --ussq-blue-dark: #1d4ed8;
  --ussq-violet: #7c3aed;
  --ussq-violet-dark: #6d28d9;
  --ussq-cyan: #0891b2;
  --ussq-teal: #0f766e;
  --ussq-emerald: #059669;

  --ussq-indigo-soft: #eef2ff;
  --ussq-blue-soft: #eff6ff;
  --ussq-violet-soft: #f5f3ff;
  --ussq-cyan-soft: #ecfeff;
  --ussq-slate-soft: #f8fafc;
  --ussq-page-bg: #f7f8fb;

  --ussq-border-default: #dfe5ef;
  --ussq-border-hover: #cbd5e1;
  --ussq-border-indigo: #c7d2fe;
  --ussq-border-blue: #bfdbfe;
  --ussq-border-violet: #ddd6fe;

  --ussq-text-main: #0f172a;
  --ussq-text-muted: #475569;
  --ussq-text-subtle: #64748b;
}

.ussq-tool-page {
  background: var(--ussq-page-bg);
  color: var(--ussq-text-main);
}
.ussq-container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 16px;
}

/* Breadcrumbs */
.ussq-breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-size: .88rem;
  padding: 16px 0 8px;
  color: var(--ussq-text-subtle);
}
.ussq-breadcrumbs a {
  color: var(--ussq-text-muted);
  text-decoration: none;
  font-weight: 500;
  transition: color .15s ease;
}
.ussq-breadcrumbs a:hover {
  color: var(--ussq-indigo);
  text-decoration: underline;
}
.ussq-bc-sep {
  color: #cbd5e1;
  user-select: none;
}
.ussq-bc-current {
  color: var(--ussq-text-main);
  font-weight: 650;
}

/* Header */
.ussq-header {
  text-align: center;
  padding: 24px 0 28px;
  background: radial-gradient(circle at 50% 10%, rgba(79, 70, 229, 0.05), transparent 60%);
}
.ussq-eyebrow {
  display: inline-block;
  font-size: .78rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--ussq-indigo);
  background: var(--ussq-indigo-soft);
  border: 1px solid var(--ussq-border-indigo);
  padding: 4px 12px;
  border-radius: 999px;
  margin-bottom: 12px;
}
.ussq-title {
  margin: 0 0 12px;
  font-size: clamp(1.75rem, 4vw, 2.4rem);
  font-weight: 850;
  line-height: 1.2;
  letter-spacing: -.025em;
  color: #0f172a;
}
.ussq-subtitle {
  max-width: 680px;
  margin: 0 auto 18px;
  font-size: clamp(1rem, 2vw, 1.12rem);
  line-height: 1.55;
  color: #475569;
}
.ussq-features {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px 16px;
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: .88rem;
  font-weight: 700;
  color: #334155;
}
.ussq-features li {
  display: inline-flex;
  align-items: center;
}
.ussq-features li:not(:last-child)::after {
  content: "•";
  margin-left: 16px;
  color: #94a3b8;
}

/* Setup Card */
.ussq-card {
  background: linear-gradient(180deg, #f8faff 0%, #ffffff 80px);
  border: 1px solid var(--ussq-border-default);
  border-top: 3px solid var(--ussq-indigo);
  border-radius: 16px;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.06);
  padding: 28px 32px;
  margin-bottom: 40px;
}
.ussq-setup-title {
  margin: 0 0 20px;
  font-size: 1.3rem;
  font-weight: 800;
  color: #0f172a;
}
.ussq-setup-group {
  margin-bottom: 22px;
}
.ussq-label {
  display: block;
  font-size: .88rem;
  font-weight: 750;
  color: #1e293b;
  margin-bottom: 8px;
}
.ussq-option-desc {
  margin: 8px 0 0;
  font-size: .82rem;
  color: #64748b;
  line-height: 1.45;
}

/* Segmented Controls */
.ussq-segmented-control {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(80px, 1fr));
  gap: 6px;
  background: #f1f5f9;
  border: 1px solid #dfe5ef;
  border-radius: 10px;
  padding: 5px;
}
.ussq-option-btn {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 8px 12px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 7px;
  color: #334155;
  font-size: .92rem;
  font-weight: 700;
  cursor: pointer;
  transition: all .16s ease;
  user-select: none;
}
.ussq-option-btn:hover {
  border-color: #cbd5e1;
  background: rgba(255, 255, 255, 0.7);
  color: #0f172a;
}
.ussq-option-btn.active {
  background: #eef2ff;
  border-color: var(--ussq-indigo);
  color: var(--ussq-indigo-dark);
  box-shadow: 0 2px 8px rgba(79, 70, 229, 0.12);
  font-weight: 800;
}
.ussq-option-btn.active::after {
  content: '';
  position: absolute;
  bottom: 3px;
  left: calc(50% - 7px);
  width: 14px;
  height: 2px;
  border-radius: 1px;
  background: currentColor;
}
.ussq-option-btn:focus-visible {
  outline: 2px solid #4f46e5;
  outline-offset: 2px;
}

.ussq-diff-control {
  grid-template-columns: repeat(4, 1fr);
}
.ussq-count-control {
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
}
.ussq-mode-control {
  grid-template-columns: repeat(2, 1fr);
}

/* Timer Setting */
.ussq-timer-setting {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 0;
  margin-bottom: 24px;
  border-top: 1px solid #f1f5f9;
  border-bottom: 1px solid #f1f5f9;
}
.ussq-switch-control {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
}
.ussq-switch-control input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}
.ussq-switch-track {
  display: inline-block;
  width: 44px;
  height: 24px;
  background: #cbd5e1;
  border-radius: 999px;
  position: relative;
  transition: background .2s ease;
}
.ussq-switch-track::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 20px;
  height: 20px;
  background: #ffffff;
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
  transition: transform .2s ease;
}
.ussq-switch-control input:checked + .ussq-switch-track {
  background: #4338ca;
}
.ussq-switch-control input:checked + .ussq-switch-track::after {
  transform: translateX(20px);
}
.ussq-switch-control input:focus-visible + .ussq-switch-track {
  outline: 2px solid #4f46e5;
  outline-offset: 2px;
}
#ussq-timer-state {
  font-size: .88rem;
  font-weight: 700;
  color: #475569;
}

/* Actions Row */
.ussq-start-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-top: 6px;
}
.ussq-setup-summary {
  margin: 0;
  font-size: .92rem;
  font-weight: 700;
  color: #64748b;
}
.ussq-btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 50px;
  padding: 12px 28px;
  background: #4f46e5;
  color: #ffffff;
  border: none;
  border-radius: 12px;
  font-size: 1.02rem;
  font-weight: 800;
  cursor: pointer;
  text-decoration: none;
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.25);
  transition: background .15s ease-in-out, transform .1s, box-shadow .15s ease;
}
.ussq-btn-primary:hover {
  background: #4338ca;
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(79, 70, 229, 0.35);
}
.ussq-btn-primary:active {
  transform: scale(0.99);
}
.ussq-btn-primary:focus-visible {
  outline: 2px solid #4f46e5;
  outline-offset: 2px;
}

/* Content Article */
.ussq-content-article {
  margin-top: 48px;
}
.ussq-content-article h2 {
  margin: 56px 0 18px;
  font-size: clamp(1.35rem, 3vw, 1.75rem);
  font-weight: 800;
  letter-spacing: -.02em;
  color: #0f172a;
  line-height: 1.25;
}
.ussq-content-article h2:first-of-type {
  margin-top: 0;
}
.ussq-content-article p {
  font-size: 1rem;
  line-height: 1.68;
  color: #334155;
  margin: 0 0 18px;
}
.ussq-section-intro {
  max-width: 780px;
  font-size: 1.02rem;
  line-height: 1.68;
  color: #475569;
  margin: 0 0 24px;
}

/* 01. How It Works (Steps Grid) */
.ussq-steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin: 20px 0 44px;
}
.ussq-step-card {
  display: flex;
  flex-direction: column;
  padding: 24px 22px;
  background: var(--ussq-indigo-soft);
  border: 1px solid var(--ussq-border-indigo);
  border-radius: 14px;
  box-shadow: 0 2px 10px rgba(15, 23, 42, 0.04);
  transition: border-color .15s ease, box-shadow .15s ease, transform .15s ease;
}
.ussq-step-num {
  display: inline-block;
  align-self: flex-start;
  font-size: .8rem;
  font-weight: 800;
  letter-spacing: .06em;
  padding: 3px 10px;
  border-radius: 6px;
  margin-bottom: 14px;
  color: var(--ussq-indigo-dark);
  background: #e0e7ff;
  border: 1px solid var(--ussq-border-indigo);
  box-shadow: 0 1px 2px rgba(79, 70, 229, 0.08);
}
.ussq-step-card h3 {
  margin: 0 0 8px;
  font-size: 1.15rem;
  font-weight: 750;
  color: var(--ussq-text-main);
}
.ussq-step-card p {
  margin: 0;
  font-size: .94rem;
  line-height: 1.55;
  color: #334155;
}

/* Preview Figure */
.ussq-preview-figure {
  margin: 28px auto 0;
  max-width: 960px;
}
.ussq-preview-figure img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 14px;
  border: 1px solid #dbe3ee;
  box-shadow: 0 6px 18px rgba(15, 23, 42, 0.05);
}

/* 02. Answer Mode Comparison Cards */
.ussq-mode-cards-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin: 20px 0 44px;
}
.ussq-comparison-card {
  display: flex;
  flex-direction: column;
  padding: 24px 22px;
  border-radius: 14px;
  box-shadow: 0 4px 16px rgba(15, 23, 42, 0.05);
  transition: border-color .15s ease, box-shadow .15s ease, transform .15s ease;
}
.ussq-comparison-card.ussq-card-mc,
.ussq-comparison-card:nth-child(1) {
  background: var(--ussq-indigo-soft);
  border: 1px solid var(--ussq-border-indigo);
}
.ussq-comparison-card.ussq-card-mc .ussq-comparison-eyebrow,
.ussq-comparison-card:nth-child(1) .ussq-comparison-eyebrow {
  color: var(--ussq-indigo);
}
.ussq-comparison-card.ussq-card-mc .ussq-badge-pill,
.ussq-comparison-card:nth-child(1) .ussq-badge-pill {
  color: var(--ussq-indigo-dark);
  background: #e0e7ff;
  border: 1px solid var(--ussq-border-indigo);
}

.ussq-comparison-card.ussq-card-typing,
.ussq-comparison-card:nth-child(2) {
  background: var(--ussq-violet-soft);
  border: 1px solid var(--ussq-border-violet);
}
.ussq-comparison-card.ussq-card-typing .ussq-comparison-eyebrow,
.ussq-comparison-card:nth-child(2) .ussq-comparison-eyebrow {
  color: var(--ussq-violet);
}
.ussq-comparison-card.ussq-card-typing .ussq-badge-pill,
.ussq-comparison-card:nth-child(2) .ussq-badge-pill {
  color: var(--ussq-violet-dark);
  background: #ede9fe;
  border: 1px solid var(--ussq-border-violet);
}

.ussq-comparison-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 12px;
}
.ussq-comparison-eyebrow {
  font-size: .8rem;
  font-weight: 800;
  letter-spacing: .05em;
  text-transform: uppercase;
}
.ussq-badge-pill {
  display: inline-block;
  font-size: .75rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
  white-space: nowrap;
}
.ussq-comparison-card h3 {
  margin: 0 0 10px;
  font-size: 1.18rem;
  font-weight: 750;
  color: var(--ussq-text-main);
}
.ussq-comparison-card p {
  margin: 0 0 16px;
  font-size: .95rem;
  line-height: 1.62;
  color: #334155;
}
.ussq-comparison-key {
  margin-top: auto;
  margin-bottom: 0;
  font-size: .88rem;
  font-weight: 650;
  color: #1e293b;
  padding: 10px 14px;
  border-radius: 8px;
  background: #ffffff;
  border: 1px solid rgba(15, 23, 42, 0.08);
}

/* 03. Difficulty Breakdown Cards */
.ussq-difficulty-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin: 20px 0 44px;
}
.ussq-diff-card {
  display: flex;
  flex-direction: column;
  padding: 22px 20px;
  background: #ffffff;
  border: 1px solid var(--ussq-border-default);
  border-radius: 14px;
  box-shadow: 0 3px 14px rgba(15, 23, 42, 0.04);
  transition: border-color .15s ease, box-shadow .15s ease, transform .15s ease;
}
.ussq-diff-card.ussq-card-diff-easy .ussq-diff-badge,
.ussq-diff-card:nth-child(1) .ussq-diff-badge {
  color: var(--ussq-blue-dark);
  background: #dbeafe;
  border: 1px solid var(--ussq-border-blue);
}
.ussq-diff-card.ussq-card-diff-easy .ussq-diff-count,
.ussq-diff-card:nth-child(1) .ussq-diff-count {
  color: var(--ussq-blue-dark);
}

.ussq-diff-card.ussq-card-diff-medium .ussq-diff-badge,
.ussq-diff-card:nth-child(2) .ussq-diff-badge {
  color: var(--ussq-indigo-dark);
  background: #e0e7ff;
  border: 1px solid var(--ussq-border-indigo);
}
.ussq-diff-card.ussq-card-diff-medium .ussq-diff-count,
.ussq-diff-card:nth-child(2) .ussq-diff-count {
  color: var(--ussq-indigo-dark);
}

.ussq-diff-card.ussq-card-diff-hard .ussq-diff-badge,
.ussq-diff-card:nth-child(3) .ussq-diff-badge {
  color: var(--ussq-violet-dark);
  background: #ede9fe;
  border: 1px solid var(--ussq-border-violet);
}
.ussq-diff-card.ussq-card-diff-hard .ussq-diff-count,
.ussq-diff-card:nth-child(3) .ussq-diff-count {
  color: var(--ussq-violet-dark);
}

.ussq-diff-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 12px;
}
.ussq-diff-badge {
  display: inline-block;
  font-size: .82rem;
  font-weight: 800;
  letter-spacing: .02em;
  padding: 3px 10px;
  border-radius: 6px;
}
.ussq-diff-count {
  font-size: .82rem;
  font-weight: 700;
}
.ussq-diff-copy {
  margin: 0 0 16px;
  font-size: .92rem;
  line-height: 1.58;
  color: #334155;
}
.ussq-diff-examples {
  margin-top: auto;
  margin-bottom: 0;
  font-size: .85rem;
  line-height: 1.5;
  color: #334155;
  padding: 9px 12px;
  border-radius: 8px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
}
.ussq-diff-examples strong {
  color: var(--ussq-text-main);
}

/* 04. Recognition Tips Cards */
.ussq-tips-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  margin: 20px 0 44px;
}
.ussq-tip-card {
  padding: 20px 22px;
  background: #ffffff;
  border: 1px solid var(--ussq-border-default);
  border-left: 3px solid var(--ussq-border-indigo);
  border-radius: 0 12px 12px 0;
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.04);
  transition: border-color .15s ease, box-shadow .15s ease, transform .15s ease;
}
.ussq-tip-card h3 {
  margin: 0 0 8px;
  font-size: 1.08rem;
  font-weight: 750;
  color: var(--ussq-text-main);
}
.ussq-tip-card p {
  margin: 0;
  font-size: .93rem;
  line-height: 1.62;
  color: #334155;
}

/* 05. Native FAQ Accordions */
.ussq-faqs {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 20px 0 44px;
}
.ussq-faq-item {
  background: #ffffff;
  border: 1px solid var(--ussq-border-default);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color .15s ease, background-color .15s ease, box-shadow .15s ease;
}
.ussq-faq-item:hover {
  border-color: var(--ussq-border-indigo);
  background: #f8faff;
}
.ussq-faq-item[open] {
  border-color: var(--ussq-border-indigo);
  background: #f8faff;
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.08);
}
.ussq-faq-summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 20px;
  cursor: pointer;
  user-select: none;
  list-style: none;
}
.ussq-faq-summary::-webkit-details-marker {
  display: none;
}
.ussq-faq-summary::marker {
  display: none;
}
.ussq-faq-summary:hover {
  background: #f8fafc;
}
.ussq-faq-summary:hover .ussq-faq-question {
  color: var(--ussq-indigo);
}
.ussq-faq-summary:focus-visible {
  outline: 2px solid var(--ussq-indigo);
  outline-offset: -2px;
}
.ussq-faq-question {
  font-size: 1.02rem;
  font-weight: 750;
  color: var(--ussq-text-main);
  line-height: 1.4;
  transition: color .15s ease;
}
.ussq-faq-icon {
  flex-shrink: 0;
  color: var(--ussq-text-subtle);
  transition: transform .2s ease, color .2s ease;
}
.ussq-faq-summary:hover .ussq-faq-icon,
.ussq-faq-item[open] .ussq-faq-icon {
  color: var(--ussq-indigo);
}
.ussq-faq-item[open] .ussq-faq-icon {
  transform: rotate(180deg);
}
.ussq-faq-answer {
  padding: 0 20px 18px;
  color: var(--ussq-text-muted);
  font-size: .95rem;
  line-height: 1.65;
}
.ussq-faq-answer p {
  margin: 0;
}

/* Map & Outline Disclaimer */
.ussq-tool-page .ussq-map-disclaimer {
  margin: 32px 0 0;
  padding: 14px 18px;
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  color: #475569;
  font-size: 0.84rem;
  line-height: 1.6;
}
.ussq-tool-page .ussq-map-disclaimer p {
  margin: 0;
}
.ussq-tool-page .ussq-map-disclaimer strong {
  color: #334155;
  font-weight: 700;
  margin-right: 4px;
}
.ussq-tool-page .ussq-map-disclaimer .ussq-disclaimer-link {
  color: #475569;
  text-decoration: underline;
  text-underline-offset: 2px;
  white-space: nowrap;
  font-weight: 600;
  transition: color 0.15s ease;
}
.ussq-tool-page .ussq-map-disclaimer .ussq-disclaimer-link:hover {
  color: var(--ussq-indigo, #4f46e5);
}

/* 06. Related Tools Section */
.ussq-related-section {
  margin: 48px 0 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.ussq-related-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 28px;
  background: var(--ussq-indigo-soft);
  border: 1px solid var(--ussq-border-indigo);
  border-radius: 16px;
}
.ussq-related-copy h3 {
  margin: 0 0 6px;
  font-size: 1.15rem;
  font-weight: 750;
  color: #1e1b4b;
}
.ussq-related-copy p {
  margin: 0;
  font-size: .92rem;
  color: #3730a3;
}
.ussq-btn-related {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  padding: 10px 20px;
  background: var(--ussq-indigo);
  color: #ffffff;
  border-radius: 10px;
  font-weight: 750;
  font-size: .92rem;
  text-decoration: none;
  transition: background .15s ease;
}
.ussq-btn-related:hover {
  background: #3730a3;
}
.ussq-btn-related:focus-visible {
  outline: 2px solid var(--ussq-indigo);
  outline-offset: 2px;
}

/* Hover Micro-interactions */
@media (hover: hover) and (pointer: fine) {
  .ussq-step-card:hover,
  .ussq-comparison-card:hover,
  .ussq-diff-card:hover,
  .ussq-tip-card:hover {
    border-color: #cbd5e1;
    box-shadow: 0 4px 14px rgba(15, 23, 42, 0.06);
    transform: translateY(-1px);
  }
}

@media (prefers-reduced-motion: reduce) {
  .ussq-step-card,
  .ussq-comparison-card,
  .ussq-diff-card,
  .ussq-tip-card,
  .ussq-option-btn,
  .ussq-btn-primary,
  .ussq-btn-related,
  .ussq-faq-icon {
    transition: none !important;
    transform: none !important;
  }
}

/* Responsive Media Queries (Mobile & Tablet) */
@media (max-width: 767px) {
  /* Setup Card */
  .ussq-card {
    padding: 22px 20px;
    margin-bottom: 32px;
  }
  .ussq-setup-title {
    margin: 0 0 16px;
    font-size: 1.22rem;
  }
  .ussq-setup-group {
    margin-bottom: 22px;
  }
  .ussq-label {
    margin-bottom: 10px;
    font-size: .86rem;
  }
  .ussq-option-desc {
    margin: 8px 0 0;
    font-size: .8rem;
  }

  /* Segmented Controls */
  .ussq-diff-control {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }
  .ussq-diff-control .ussq-option-btn {
    min-height: 44px;
    padding: 8px 4px;
    font-size: .88rem;
    white-space: nowrap;
  }
  .ussq-count-control {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 8px;
  }
  .ussq-count-control .ussq-option-btn {
    min-height: 44px;
    padding: 8px 8px;
    font-size: .9rem;
    white-space: nowrap;
  }
  .ussq-mode-control {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  .ussq-mode-control .ussq-option-btn {
    min-height: 48px;
    padding: 10px 14px;
    font-size: .92rem;
  }

  /* Timer Setting */
  .ussq-timer-setting {
    padding: 14px 0;
    margin-bottom: 20px;
  }

  /* Actions Row */
  .ussq-start-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
    padding-top: 4px;
  }
  .ussq-setup-summary {
    text-align: center;
    font-size: .88rem;
    line-height: 1.4;
    margin: 0 0 4px;
  }
  .ussq-btn-primary {
    width: 100%;
    justify-content: center;
    min-height: 48px;
    padding: 12px 20px;
    font-size: 1rem;
  }

  /* Content Article & Section Spacing */
  .ussq-content-article {
    margin-top: 36px;
  }
  .ussq-content-article h2 {
    margin: 40px 0 14px;
    font-size: 1.65rem;
    line-height: 1.2;
  }
  .ussq-content-article h2:first-of-type {
    margin-top: 0;
  }
  .ussq-content-article p {
    font-size: .98rem;
    line-height: 1.62;
    margin: 0 0 14px;
  }
  .ussq-section-intro {
    font-size: .98rem;
    line-height: 1.62;
    margin: 0 0 18px;
  }

  /* 01. How It Works (Steps Grid) */
  .ussq-steps-grid {
    grid-template-columns: 1fr;
    gap: 12px;
    margin: 16px 0 36px;
  }
  .ussq-step-card {
    padding: 18px 20px;
    min-height: 0;
  }
  .ussq-step-num {
    height: 34px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0 12px;
    font-size: .78rem;
    margin-bottom: 10px;
  }
  .ussq-step-card h3 {
    margin: 0 0 6px;
    font-size: 1.1rem;
  }
  .ussq-step-card p {
    font-size: .92rem;
    line-height: 1.5;
  }

  /* Preview Figure */
  .ussq-preview-figure {
    margin: 20px auto 0;
    max-width: 100%;
  }
  .ussq-preview-figure img {
    border-radius: 10px;
  }

  /* 02. Answer Mode Comparison Cards */
  .ussq-mode-cards-grid {
    grid-template-columns: 1fr;
    gap: 12px;
    margin: 16px 0 36px;
  }
  .ussq-comparison-card {
    padding: 18px 20px;
    min-height: 0;
  }
  .ussq-comparison-header {
    margin-bottom: 10px;
  }
  .ussq-comparison-card h3 {
    margin: 0 0 6px;
    font-size: 1.12rem;
  }
  .ussq-comparison-card p {
    margin: 0 0 10px;
    font-size: .92rem;
    line-height: 1.55;
  }
  .ussq-comparison-key {
    padding: 10px 12px;
    font-size: .86rem;
    line-height: 1.45;
    margin-top: auto;
  }

  /* 03. Difficulty Breakdown Cards */
  .ussq-difficulty-cards-grid {
    grid-template-columns: 1fr;
    gap: 12px;
    margin: 16px 0 36px;
  }
  .ussq-diff-card {
    padding: 18px 20px;
    min-height: 0;
  }
  .ussq-diff-header {
    margin-bottom: 10px;
  }
  .ussq-diff-copy {
    margin: 0 0 10px;
    font-size: .92rem;
    line-height: 1.5;
  }
  .ussq-diff-examples {
    padding: 8px 10px;
    font-size: .84rem;
    line-height: 1.45;
  }

  /* 04. Recognition Tips Cards */
  .ussq-tips-grid {
    grid-template-columns: 1fr;
    gap: 12px;
    margin: 16px 0 36px;
  }
  .ussq-tip-card {
    padding: 18px 20px;
    min-height: 0;
  }
  .ussq-tip-card h3 {
    margin: 0 0 6px;
    font-size: 1.05rem;
  }
  .ussq-tip-card p {
    font-size: .92rem;
    line-height: 1.55;
  }

  /* 05. Native FAQ Accordions */
  .ussq-faqs {
    gap: 10px;
    margin: 16px 0 36px;
  }
  .ussq-faq-summary {
    padding: 16px 18px;
    min-height: 48px;
  }
  .ussq-faq-question {
    font-size: 1rem;
    line-height: 1.35;
  }
  .ussq-faq-answer {
    padding: 0 18px 16px;
    font-size: .92rem;
    line-height: 1.62;
  }

  /* Map & Outline Disclaimer */
  .ussq-tool-page .ussq-map-disclaimer {
    margin-top: 24px;
    padding: 12px 14px;
    font-size: 0.8125rem;
    line-height: 1.58;
  }

  /* 06. Related Tools Section */
  .ussq-related-section {
    margin: 40px 0 20px;
  }
  .ussq-related-card {
    flex-direction: column;
    align-items: stretch;
    text-align: center;
    padding: 20px 18px;
    gap: 16px;
  }
  .ussq-btn-related {
    width: 100%;
    justify-content: center;
    min-height: 46px;
  }
}

/* Extra Narrow Mobile (<= 360px) */
@media (max-width: 360px) {
  .ussq-container {
    padding: 0 12px;
  }
  .ussq-card {
    padding: 18px 14px;
  }
  .ussq-diff-control {
    gap: 6px;
  }
  .ussq-diff-control .ussq-option-btn {
    padding: 8px 2px;
    font-size: .84rem;
  }
}