:root {
  --color-bg: #111c2e;
  --color-bg-gradient: linear-gradient(135deg, rgba(30,40,70,0.08) 0%, rgba(20,30,60,0.14) 100%);
  --color-card-bg: #18243a;
  --color-card-gradient: linear-gradient(120deg, rgba(255,255,255,0.01) 0%, rgba(255,255,255,0.04) 100%);
  --color-primary: #ffe04b;
  --color-primary-hover: #ffeb7a;
  --color-secondary: #fff;
  --color-text: #e7eaf2;
  --color-text-muted: #aab4c8;
  --color-border: rgba(255,255,255,0.07);
  --color-shadow: 0 2px 16px 0 rgba(20,30,60,0.16);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 8px;
  --transition: 0.18s cubic-bezier(.4,0,.2,1);
  --max-width: 1240px;
  --font-main: 'Inter', 'Segoe UI', Arial, sans-serif;
  --font-size: 14px;
  --font-size-lg: 2.2rem;
  --font-size-md: 1.3rem;
  --font-size-sm: 1rem;
  --section-gap: 64px;
}

html, body {
  min-height: 100%;
  background: var(--color-bg);
  background-image: var(--color-bg-gradient);
  color: var(--color-text);
  font-family: var(--font-main);
  font-size: var(--font-size);
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  scroll-behavior: smooth;
}

body.feather-sort-3d-body {
  background: var(--color-bg);
  background-image: var(--color-bg-gradient);
  min-height: 100vh;
  margin: 0;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color var(--transition);
}
a:hover, a:focus {
  color: var(--color-primary-hover);
}

.feather-sort-3d-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
}

.feather-sort-3d-header {
  background: var(--color-card-bg);
  background-image: var(--color-card-gradient);
  box-shadow: var(--color-shadow);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.feather-sort-3d-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 18px 24px;
}

.feather-sort-3d-logo-img {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  box-shadow: 0 2px 8px 0 rgba(30,40,70,0.16);
  background: var(--color-bg);
  transition: box-shadow var(--transition);
}

.feather-sort-3d-logo:hover .feather-sort-3d-logo-img {
  box-shadow: 0 4px 16px 0 rgba(255,224,75,0.13);
}

.feather-sort-3d-nav-list {
  display: flex;
  gap: 32px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.feather-sort-3d-nav-link {
  color: var(--color-text);
  font-weight: 500;
  padding: 7px 18px;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
  position: relative;
}
.feather-sort-3d-nav-link:hover,
.feather-sort-3d-nav-link:focus {
  background: rgba(255,224,75,0.08);
  color: var(--color-primary);
}

.feather-sort-3d-hero {
  padding: 56px 0 32px 0;
  background: var(--color-bg);
  background-image: var(--color-bg-gradient);
}

.feather-sort-3d-hero-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.feather-sort-3d-hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  align-items: center;
}

.feather-sort-3d-hero-col--text {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.feather-sort-3d-title {
  font-size: 2.8rem;
  font-weight: 800;
  margin: 0 0 8px 0;
  color: var(--color-primary);
  letter-spacing: -1px;
  line-height: 1.1;
  text-shadow: 0 2px 16px rgba(255,224,75,0.08);
}

.feather-sort-3d-tagline {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  margin: 0 0 14px 0;
  font-weight: 400;
}

.feather-sort-3d-hero-features {
  margin: 0 0 10px 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.feather-sort-3d-hero-features li {
  position: relative;
  padding-left: 22px;
  color: var(--color-text);
  font-size: 1rem;
}
.feather-sort-3d-hero-features li::before {
  content: '';
  display: inline-block;
  position: absolute;
  left: 0; top: 7px;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--color-primary);
  opacity: 0.7;
  box-shadow: 0 1px 8px 0 rgba(255,224,75,0.10);
}

.feather-sort-3d-hero-cta {
  display: flex;
  gap: 18px;
  margin-top: 18px;
}

.feather-sort-3d-btn {
  display: inline-block;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  padding: 13px 32px;
  box-shadow: 0 2px 12px 0 rgba(255,224,75,0.04);
  border: none;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition);
  text-align: center;
  letter-spacing: 0.01em;
  outline: none;
  background: none;
}
.feather-sort-3d-btn--primary {
  background: var(--color-primary);
  color: #1a1a1a;
  box-shadow: 0 2px 16px 0 rgba(255,224,75,0.13);
}
.feather-sort-3d-btn--primary:hover,
.feather-sort-3d-btn--primary:focus {
  background: var(--color-primary-hover);
  box-shadow: 0 4px 24px 0 rgba(255,224,75,0.19);
}
.feather-sort-3d-btn--secondary {
  background: rgba(255,255,255,0.08);
  color: var(--color-primary);
  border: 1px solid rgba(255,224,75,0.13);
}
.feather-sort-3d-btn--secondary:hover,
.feather-sort-3d-btn--secondary:focus {
  background: rgba(255,224,75,0.09);
  color: var(--color-primary-hover);
}

.feather-sort-3d-hero-media-wrap {
  background: var(--color-card-bg);
  background-image: var(--color-card-gradient);
  border-radius: var(--radius-lg);
  box-shadow: var(--color-shadow);
  padding: 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.feather-sort-3d-hero-image {
  width: 100%;
  max-width: 320px;
  max-height: 320px;
  object-fit: cover;
  border-radius: var(--radius-md);
  box-shadow: 0 2px 16px 0 rgba(30,40,70,0.22);
}

.feather-sort-3d-hero-mini {
  display: flex;
  gap: 18px;
  margin-top: 6px;
  font-size: 0.98rem;
  color: var(--color-text-muted);
}

.feather-sort-3d-mini-item strong {
  color: var(--color-primary);
  font-weight: 600;
}

.feather-sort-3d-section {
  padding: var(--section-gap) 0;
}

.feather-sort-3d-section-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 36px;
  letter-spacing: -0.5px;
  text-shadow: 0 2px 12px rgba(255,224,75,0.08);
}

.feather-sort-3d-world-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 44px;
  align-items: stretch;
}

.feather-sort-3d-world-text {
  background: var(--color-card-bg);
  background-image: var(--color-card-gradient);
  border-radius: var(--radius-lg);
  box-shadow: var(--color-shadow);
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  font-size: 1rem;
}

.feather-sort-3d-world-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.feather-sort-3d-world-list li {
  position: relative;
  padding-left: 22px;
  color: var(--color-text);
}
.feather-sort-3d-world-list li::before {
  content: '';
  display: inline-block;
  position: absolute;
  left: 0; top: 8px;
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--color-primary);
  opacity: 0.6;
}

.feather-sort-3d-world-media {
  display: flex;
  align-items: center;
  justify-content: center;
}
.feather-sort-3d-world-image {
  width: 100%;
  max-width: 340px;
  max-height: 300px;
  object-fit: cover;
  border-radius: var(--radius-md);
  box-shadow: 0 2px 12px 0 rgba(30,40,70,0.16);
}

.feather-sort-3d-gameplay-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 44px;
  align-items: stretch;
}

.feather-sort-3d-gameplay-text {
  background: var(--color-card-bg);
  background-image: var(--color-card-gradient);
  border-radius: var(--radius-lg);
  box-shadow: var(--color-shadow);
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  font-size: 1rem;
}

.feather-sort-3d-list {
  margin: 0 0 12px 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.feather-sort-3d-list li {
  position: relative;
  padding-left: 18px;
  color: var(--color-text);
}
.feather-sort-3d-list li::before {
  content: '';
  display: inline-block;
  position: absolute;
  left: 0; top: 8px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
  opacity: 0.5;
}

.feather-sort-3d-subtitle {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-primary);
  margin: 18px 0 8px 0;
  letter-spacing: -0.2px;
}

.feather-sort-3d-systems {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}
.feather-sort-3d-system {
  background: rgba(255,255,255,0.02);
  border-radius: var(--radius-md);
  padding: 16px 18px;
  box-shadow: 0 1px 8px 0 rgba(30,40,70,0.06);
  flex: 1 1 0;
  min-width: 180px;
  font-size: 0.98rem;
  border: 1px solid var(--color-border);
}
.feather-sort-3d-system strong {
  color: var(--color-primary);
  font-weight: 600;
}

.feather-sort-3d-gameplay-media {
  display: flex;
  align-items: center;
  justify-content: center;
}
.feather-sort-3d-gameplay-image {
  width: 100%;
  max-width: 340px;
  max-height: 300px;
  object-fit: cover;
  border-radius: var(--radius-md);
  box-shadow: 0 2px 12px 0 rgba(30,40,70,0.16);
}

.feather-sort-3d-steps {
  background: var(--color-card-bg);
  background-image: var(--color-card-gradient);
  border-radius: var(--radius-lg);
  box-shadow: var(--color-shadow);
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.feather-sort-3d-steps-list {
  margin: 0 0 18px 0;
  padding: 0 0 0 18px;
  color: var(--color-text);
  font-size: 1rem;
}
.feather-sort-3d-steps-list li {
  margin-bottom: 7px;
}

.feather-sort-3d-unique-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 24px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.feather-sort-3d-unique-list li {
  background: var(--color-card-bg);
  background-image: var(--color-card-gradient);
  border-radius: var(--radius-md);
  box-shadow: 0 1px 8px 0 rgba(30,40,70,0.07);
  padding: 22px 22px 18px 22px;
  color: var(--color-text);
  font-size: 1rem;
  border: 1px solid var(--color-border);
}

.feather-sort-3d-impressions-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 44px;
  align-items: stretch;
}

.feather-sort-3d-impressions-text {
  background: var(--color-card-bg);
  background-image: var(--color-card-gradient);
  border-radius: var(--radius-lg);
  box-shadow: var(--color-shadow);
  padding: 36px 32px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  font-size: 1rem;
}

.feather-sort-3d-impressions-reviews {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.feather-sort-3d-quote {
  background: rgba(255,255,255,0.02);
  border-radius: var(--radius-md);
  padding: 18px 20px;
  font-size: 0.98rem;
  color: var(--color-text-muted);
  border-left: 3px solid var(--color-primary);
  margin: 0;
  box-shadow: 0 1px 8px 0 rgba(30,40,70,0.07);
}

.feather-sort-3d-features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.feather-sort-3d-feature {
  background: var(--color-card-bg);
  background-image: var(--color-card-gradient);
  border-radius: var(--radius-md);
  box-shadow: 0 1px 8px 0 rgba(30,40,70,0.07);
  padding: 24px 22px 20px 22px;
  color: var(--color-text);
  font-size: 1rem;
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.feather-sort-3d-faq-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.feather-sort-3d-faq-item {
  background: var(--color-card-bg);
  background-image: var(--color-card-gradient);
  border-radius: var(--radius-md);
  box-shadow: 0 1px 8px 0 rgba(30,40,70,0.07);
  padding: 22px 20px 16px 20px;
  color: var(--color-text);
  font-size: 1rem;
  border: 1px solid var(--color-border);
}

.feather-sort-3d-question {
  color: var(--color-primary);
  font-size: 1.05rem;
  font-weight: 600;
  margin: 0 0 8px 0;
}
.feather-sort-3d-answer {
  color: var(--color-text-muted);
  font-size: 0.98rem;
  margin: 0;
}

.feather-sort-3d-screenshot-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 18px;
}

.feather-sort-3d-screenshot-item {
  background: var(--color-card-bg);
  background-image: var(--color-card-gradient);
  border-radius: var(--radius-md);
  box-shadow: 0 1px 8px 0 rgba(30,40,70,0.07);
  padding: 12px 12px 10px 12px;
  display: flex;
  flex-direction: column;
  align-items: center;
  border: 1px solid var(--color-border);
}

.feather-sort-3d-screenshot-img {
  width: 100%;
  max-width: 170px;
  aspect-ratio: 9/16;
  object-fit: cover;
  border-radius: var(--radius-sm);
  box-shadow: 0 2px 12px 0 rgba(30,40,70,0.13);
}

.feather-sort-3d-caption {
  color: var(--color-text-muted);
  font-size: 0.92rem;
  margin: 8px 0 0 0;
  text-align: center;
}

.feather-sort-3d-mood-wrap {
  background: var(--color-card-bg);
  background-image: var(--color-card-gradient);
  border-radius: var(--radius-lg);
  box-shadow: var(--color-shadow);
  padding: 36px 32px;
  display: flex;
  gap: 32px;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}

.feather-sort-3d-mood-image {
  width: 100%;
  max-width: 340px;
  max-height: 300px;
  object-fit: cover;
  border-radius: var(--radius-md);
  box-shadow: 0 2px 12px 0 rgba(30,40,70,0.16);
}

.feather-sort-3d-mood-text {
  color: var(--color-text);
  font-size: 1.1rem;
  max-width: 400px;
}

.feather-sort-3d-cta-late {
  background: var(--color-card-bg);
  background-image: var(--color-card-gradient);
  box-shadow: var(--color-shadow);
  border-radius: var(--radius-lg);
  margin: 48px 0 0 0;
  padding: 0;
}
.feather-sort-3d-cta-late-inner {
  max-width: 700px;
  margin: 0 auto;
  padding: 36px 32px 32px 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  text-align: center;
}

.feather-sort-3d-cta-title {
  color: var(--color-primary);
  font-size: 1.5rem;
  font-weight: 700;
  margin: 0 0 8px 0;
}
.feather-sort-3d-cta-text {
  color: var(--color-text-muted);
  font-size: 1.1rem;
  margin: 0 0 12px 0;
}

.feather-sort-3d-footer {
  background: var(--color-card-bg);
  background-image: var(--color-card-gradient);
  box-shadow: 0 -2px 14px 0 rgba(20,30,60,0.13);
  margin-top: 64px;
  padding: 0;
}
.feather-sort-3d-footer-container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 36px 24px 18px 24px;
}
.feather-sort-3d-footer-columns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 32px;
  margin-bottom: 24px;
}
.feather-sort-3d-footer-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.feather-sort-3d-footer-logo {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-md);
  box-shadow: 0 2px 8px 0 rgba(30,40,70,0.16);
}
.feather-sort-3d-footer-logo-link:hover .feather-sort-3d-footer-logo {
  box-shadow: 0 4px 16px 0 rgba(255,224,75,0.13);
}
.feather-sort-3d-footer-desc,
.feather-sort-3d-footer-text {
  color: var(--color-text-muted);
  font-size: 0.97rem;
  margin: 0;
}
.feather-sort-3d-footer-title {
  color: var(--color-primary);
  font-size: 1.05rem;
  font-weight: 700;
  margin: 0 0 10px 0;
}
.feather-sort-3d-footer-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.feather-sort-3d-footer-link {
  color: var(--color-primary);
  font-size: 0.97rem;
  transition: color var(--transition);
}
.feather-sort-3d-footer-link:hover,
.feather-sort-3d-footer-link:focus {
  color: var(--color-primary-hover);
  text-decoration: underline;
}
.feather-sort-3d-footer-bottom {
  border-top: 1px solid var(--color-border);
  margin-top: 12px;
  padding-top: 12px;
  text-align: center;
}
.feather-sort-3d-copy {
  color: var(--color-text-muted);
  font-size: 0.92rem;
  margin: 0;
}

/* Responsive Styles */
@media (max-width: 1100px) {
  .feather-sort-3d-hero-grid,
  .feather-sort-3d-world-grid,
  .feather-sort-3d-gameplay-grid,
  .feather-sort-3d-impressions-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .feather-sort-3d-hero-image,
  .feather-sort-3d-world-image,
  .feather-sort-3d-gameplay-image,
  .feather-sort-3d-mood-image {
    max-width: 100%;
    max-height: 260px;
  }
  .feather-sort-3d-mood-wrap {
    flex-direction: column;
    align-items: stretch;
    gap: 18px;
  }
}

@media (max-width: 800px) {
  .feather-sort-3d-header-inner {
    flex-direction: column;
    gap: 18px;
    padding: 15px 12px;
  }
  .feather-sort-3d-nav-list {
    gap: 18px;
  }
  .feather-sort-3d-section {
    padding: 38px 0;
  }
  .feather-sort-3d-section-title {
    font-size: 1.5rem;
    margin-bottom: 22px;
  }
  .feather-sort-3d-cta-late-inner {
    padding: 22px 10px 18px 10px;
  }
  .feather-sort-3d-footer-container {
    padding: 22px 10px 10px 10px;
  }
}

@media (max-width: 600px) {
  .feather-sort-3d-container {
    padding: 0 7px;
  }
  .feather-sort-3d-header-inner {
    padding: 10px 4px;
  }
  .feather-sort-3d-hero-content {
    padding: 0 4px;
  }
  .feather-sort-3d-hero-col--text {
    gap: 14px;
  }
  .feather-sort-3d-title {
    font-size: 1.5rem;
  }
  .feather-sort-3d-tagline {
    font-size: 1rem;
  }
  .feather-sort-3d-section-title {
    font-size: 1.1rem;
    margin-bottom: 14px;
  }
  .feather-sort-3d-hero-cta {
    flex-direction: column;
    gap: 10px;
  }
  .feather-sort-3d-btn {
    width: 100%;
    padding: 11px 0;
    font-size: 1rem;
  }
  .feather-sort-3d-mood-wrap,
  .feather-sort-3d-steps,
  .feather-sort-3d-impressions-text,
  .feather-sort-3d-world-text,
  .feather-sort-3d-gameplay-text {
    padding: 14px 8px;
    border-radius: var(--radius-sm);
  }
  .feather-sort-3d-mood-image,
  .feather-sort-3d-hero-image,
  .feather-sort-3d-world-image,
  .feather-sort-3d-gameplay-image {
    max-width: 100%;
    max-height: 180px;
  }
  .feather-sort-3d-footer-columns {
    grid-template-columns: 1fr;
    gap: 18px;
  }
  .feather-sort-3d-screenshot-grid {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }
}