.hero {
  padding-block: var(--space-16);
  text-align: center;
  background: linear-gradient(180deg, var(--color-surface-dark-1) 0%, var(--color-surface-dark-2) 100%);
  color: var(--color-gray-50);
}

.hero-title {
  font-size: var(--font-size-4xl);
  margin-bottom: var(--space-4);
  background: linear-gradient(135deg, var(--color-gray-50) 0%, var(--color-gray-300) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  color: var(--color-gray-300);
  max-width: 600px;
  margin-inline: auto;
  margin-bottom: var(--space-8);
}

.hero-video {
  max-width: 800px;
  margin-inline: auto;
  margin-bottom: var(--space-8);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
}

/* Button Styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  min-height: 44px;
  min-width: 44px;
  border-radius: var(--radius-lg);
  font-weight: var(--font-weight-semibold);
  transition: all var(--transition-base);
  cursor: pointer;
}

.btn-primary {
  background: var(--color-accent);
  color: white;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  opacity: 1;
}

.btn-secondary {
  background: var(--color-background-secondary);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  border-color: var(--color-accent);
  opacity: 1;
}

/* Card Components */
.card {
  container-type: inline-size;
  background: var(--color-background-secondary);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-base);
}

.card--dark {
  background: #13161f;
  background: color-mix(in srgb, var(--color-surface-dark-2) 75%, #1f2937 25%);
  border: 1px solid rgba(255, 255, 255, 0.1);
  color: var(--color-gray-100);
  box-shadow: var(--shadow-md);
}

.card--dark h3,
.card--dark h4 {
  color: var(--color-gray-50);
}

.card--dark p,
.card--dark li {
  color: color-mix(in srgb, var(--color-gray-50) 90%, white 10%);
}

.card--dark a {
  color: var(--color-accent);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-3);
}

.card-description {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}

.app-screenshot {
  display: block;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  margin: 0 auto;
}

.keyboard-screenshot {
  width: min(100%, 320px);
}

.training-screenshot {
  width: min(100%, 320px);
}

/* Instructions Hub */
.instruction-hero,
.instruction-detail-hero {
  position: relative;
  isolation: isolate;
  background: linear-gradient(180deg, var(--color-surface-dark-1) 0%, var(--color-surface-dark-2) 100%);
  color: var(--color-gray-50);
  padding-block: var(--space-16);
  overflow: hidden;
}

.instruction-hero::before,
.instruction-detail-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: var(--instruction-bg, none);
  background-size: cover;
  background-position: center;
  opacity: 0.45;
  transform: scale(1.08);
  z-index: -2;
  filter: saturate(0.85);
}

.instruction-hero::after,
.instruction-detail-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 8, 12, 0.95), rgba(6, 10, 19, 0.92));
  z-index: -1;
}

.instruction-hero__content,
.instruction-detail-hero__content {
  text-align: center;
  max-width: 780px;
  margin-inline: auto;
}

.instruction-hero__kicker,
.instruction-detail-hero__kicker {
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-gray-300);
  margin-bottom: var(--space-4);
}

.instruction-detail-hero__icon {
  font-size: 3rem;
  margin-bottom: var(--space-4);
}

.instruction-grid-section {
  padding-block: var(--space-12);
}

.instruction-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-6);
}

.instruction-card {
  position: relative;
  border-radius: var(--radius-xl);
  min-height: 260px;
  padding: var(--space-6);
  color: white;
  text-decoration: none;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  isolation: isolate;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  background: var(--color-surface-dark-2);
}

.instruction-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: var(--instruction-bg, none);
  background-size: cover;
  background-position: center;
  transform: scale(1.05);
  z-index: -2;
}

.instruction-card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.25), rgba(4, 6, 11, 0.9));
  z-index: -1;
}

.instruction-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.instruction-card__icon {
  font-size: 2rem;
  margin-bottom: var(--space-4);
  display: inline-flex;
}

.instruction-card__eyebrow {
  font-size: var(--font-size-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: var(--space-2);
  color: var(--color-gray-300);
}

.instruction-card__title {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-3);
  color: white;
}

.instruction-card__description {
  color: var(--color-gray-200);
  margin-bottom: var(--space-4);
}

.instruction-card__cta {
  font-weight: var(--font-weight-semibold);
  color: var(--color-accent);
}

.instruction-steps-section {
  background: var(--color-background-secondary);
  padding-block: var(--space-12);
}

.instruction-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-6);
}

.instruction-step {
  background: white;
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
}

.instruction-step__label {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-2);
}

.instruction-step__title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-2);
}

.instruction-step__list {
  margin: 0;
  padding-left: var(--space-5);
  color: var(--color-text-secondary);
}

.instruction-feature-section {
  padding-block: var(--space-12);
}

.instruction-feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-6);
}

.instruction-feature-grid .card {
  height: 100%;
}

.instruction-detail {
  padding-block: var(--space-12);
}

.instruction-article {
  max-width: 800px;
  margin-inline: auto;
  background: white;
  border-radius: var(--radius-xl);
  padding: clamp(var(--space-6), 5vw, var(--space-10));
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
}

.instruction-article h2 {
  font-size: var(--font-size-2xl);
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}

.instruction-article h2:first-of-type {
  margin-top: 0;
}

.instruction-article p {
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.instruction-article ul,
.instruction-article ol {
  padding-left: var(--space-6);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}

.instruction-article strong {
  color: var(--color-text-primary);
}

.instruction-article blockquote {
  border-left: 4px solid var(--color-accent);
  padding-left: var(--space-4);
  color: var(--color-text-secondary);
  font-style: italic;
  margin: var(--space-6) 0;
}

.questzone-screenshot {
  width: min(100%, 320px);
}

/* Grid Layouts with Subgrid */
.grid {
  display: grid;
  gap: var(--space-6);
}

.grid-2 {
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.grid-3 {
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Feature Triads */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-8);
  padding-block: var(--space-12);
}

.feature {
  text-align: center;
}

.feature-icon {
  width: 64px;
  height: 64px;
  margin-inline: auto;
  margin-bottom: var(--space-4);
  background: linear-gradient(135deg, var(--color-accent) 0%, #c026d3 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 32px;
}

.feature-title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-2);
}

.feature-description {
  color: var(--color-text-secondary);
}

/* Pricing Table */
.pricing-table {
  display: grid;
  gap: var(--space-6);
  grid-template-columns: 1fr;
}

@media (min-width: 768px) {
  .pricing-table {
    grid-template-columns: repeat(3, 1fr);
  }
}

.pricing-card {
  background: var(--color-background-secondary);
  border-radius: var(--radius-lg);
  padding: var(--space-8);
  border: 2px solid var(--color-border);
  transition: all var(--transition-base);
}

.pricing-card.featured {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-lg);
  /* Removed scaling to keep featured card height consistent with siblings */
}

.pricing-name {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-2);
}

.pricing-price {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-weight-bold);
  margin-bottom: var(--space-1);
}

.pricing-period {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
}

.pricing-features {
  list-style: none;
  padding: 0;
  margin-bottom: var(--space-6);
}

.pricing-feature {
  padding: var(--space-2) 0;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.pricing-feature::before {
  content: "✓";
  color: var(--color-success);
  font-weight: var(--font-weight-bold);
}

/* Accordion */
.accordion {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.accordion-item {
  border-bottom: 1px solid var(--color-border);
}

.accordion-item:last-child {
  border-bottom: none;
}

.accordion-button {
  width: 100%;
  padding: var(--space-4) var(--space-6);
  text-align: left;
  background: var(--color-background);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: var(--font-weight-semibold);
  transition: background var(--transition-fast);
  min-height: 60px;
}

.accordion-button:hover {
  background: var(--color-background-secondary);
}

.accordion-button[aria-expanded="true"] .accordion-icon {
  transform: rotate(180deg);
}

.accordion-icon {
  transition: transform var(--transition-base);
}

.accordion-content {
  padding: 0 var(--space-6) var(--space-4);
  display: none;
}

.accordion-content.open {
  display: block;
}

/* Footer */
.footer {
  background: var(--color-surface-dark-2);
  color: var(--color-gray-300);
  padding-block: var(--space-12);
  margin-top: var(--space-20);
}

.footer-grid {
  display: grid;
  gap: var(--space-8);
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.footer-section-title {
  color: var(--color-gray-50);
  font-weight: var(--font-weight-semibold);
  margin-bottom: var(--space-4);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-link {
  color: var(--color-gray-400);
  padding: var(--space-2) 0;
  display: block;
}

.footer-link:hover {
  color: var(--color-gray-50);
}

.footer-bottom {
  margin-top: var(--space-8);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-gray-700);
  text-align: center;
  color: var(--color-gray-500);
}

/* Status Chip */
.status-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  cursor: pointer;
}

.status-chip.green {
  background: color-mix(in srgb, var(--color-success) 10%, transparent);
  color: var(--color-success);
}

.status-chip.amber {
  background: color-mix(in srgb, var(--color-warning) 10%, transparent);
  color: var(--color-warning);
}

.status-chip.red {
  background: color-mix(in srgb, var(--color-error) 10%, transparent);
  color: var(--color-error);
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
}