:root {
  --sk-bg: #090909;
  --sk-foreground: #fff;
  --sk-card: rgba(90, 90, 90, 0.15);
  --sk-card-solid: #111111;
  --sk-border: #353535;
  --sk-muted: rgba(161, 161, 161, 0.2);
  --sk-muted-fg: #a1a1a1;
  --sk-accent: #93b8ec;
  --sk-accent-dark: #6690c0;
  --sk-secondary-fg: #a1a1a1;
  --sk-radius: 25px;
  --sk-radius-sm: 12px;
  --sk-radius-md: 16px;
}

*, *::before, *::after {
  box-sizing: border-box;
}

body.sk-help-page,
body.sk-about-page {
  margin: 0;
  padding: 0;
  background-color: var(--sk-bg);
  color: var(--sk-foreground);
  font-family: Roboto, Helvetica, Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.sk-page-wrapper {
  min-height: 100vh;
  background-color: var(--sk-bg);
  color: var(--sk-foreground);
  font-family: Roboto, Helvetica, Arial, sans-serif;
  overflow-x: hidden;
  max-width: 100%;
}

.sk-topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(0, 0, 0, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--sk-border);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sk-topbar-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  color: var(--sk-foreground);
  font-weight: 700;
  font-size: 1.1rem;
  letter-spacing: 0.02em;
}

.sk-topbar-logo img {
  height: 28px;
  width: auto;
  filter: invert(0);
}

.sk-topbar-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.sk-topbar-nav a {
  color: var(--sk-muted-fg);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--sk-radius);
  transition: background-color 0.2s ease, color 0.2s ease;
}

.sk-topbar-nav a:hover {
  background-color: rgba(147, 184, 236, 0.1);
  color: var(--sk-foreground);
}

.sk-topbar-nav a.active {
  background-color: rgba(147, 184, 236, 0.15);
  color: var(--sk-accent);
}

.sk-main-content {
  max-width: 860px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

.sk-page-hero {
  margin-bottom: 48px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--sk-border);
}

.sk-page-hero h1 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--sk-foreground);
  margin: 0 0 12px 0;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

.sk-page-hero p {
  font-size: 1rem;
  color: var(--sk-muted-fg);
  margin: 0;
  max-width: 600px;
  font-weight: 500;
}

@media (min-width: 600px) {
  .sk-page-hero h1 {
    font-size: 2.4rem;
  }
}

.sk-section {
  margin-bottom: 48px;
}

.sk-section-heading {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--sk-muted-fg);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 20px 0;
  padding-left: 4px;
  font-size: 0.75rem;
}

.sk-section h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--sk-foreground);
  margin: 0 0 20px 0;
  line-height: 1.3;
}

.sk-section h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--sk-foreground);
  margin: 0 0 8px 0;
}

.sk-section p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 0.92rem;
  line-height: 1.65;
  margin: 0 0 12px 0;
  font-weight: 400;
}

.sk-section p:last-child {
  margin-bottom: 0;
}

.sk-card {
  background-color: var(--sk-card);
  border: 1px solid var(--sk-border);
  border-radius: var(--sk-radius);
  padding: 20px 24px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  position: relative;
  overflow: hidden;
}

.sk-card + .sk-card {
  margin-top: 12px;
}

.sk-card h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--sk-foreground);
  margin: 0 0 10px 0;
  line-height: 1.4;
}

.sk-card p {
  font-size: 0.9rem;
  color: var(--sk-muted-fg);
  margin: 0;
  line-height: 1.65;
}

.sk-qa-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.sk-qa-item {
  background-color: var(--sk-card);
  border: 1px solid var(--sk-border);
  border-radius: var(--sk-radius);
  overflow: hidden;
  transition: border-color 0.2s ease;
}

.sk-qa-item:hover {
  border-color: rgba(147, 184, 236, 0.3);
}

.sk-qa-question {
  width: 100%;
  background: none;
  border: none;
  padding: 18px 22px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
  text-align: left;
  color: var(--sk-foreground);
  font-family: Roboto, Helvetica, Arial, sans-serif;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.4;
  transition: background-color 0.15s ease;
}

.sk-qa-question:hover {
  background-color: rgba(255, 255, 255, 0.03);
}

.sk-qa-question[aria-expanded="true"] {
  background-color: rgba(147, 184, 236, 0.06);
}

.sk-qa-question-text {
  flex: 1;
}

.sk-qa-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background-color: rgba(147, 184, 236, 0.12);
  color: var(--sk-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1;
  transition: transform 0.25s ease, background-color 0.2s ease;
  margin-top: 2px;
}

.sk-qa-question[aria-expanded="true"] .sk-qa-icon {
  transform: rotate(45deg);
  background-color: rgba(147, 184, 236, 0.2);
}

.sk-qa-answer {
  padding: 0 22px 18px;
  font-size: 0.9rem;
  color: var(--sk-muted-fg);
  line-height: 1.7;
  display: none;
}

.sk-qa-answer.open {
  display: block;
}

.sk-qa-answer p {
  margin: 0 0 10px 0;
  color: var(--sk-muted-fg);
}

.sk-qa-answer p:last-child {
  margin-bottom: 0;
}

.sk-qa-answer a {
  color: var(--sk-accent);
  text-decoration: none;
  font-weight: 600;
  border-bottom: 1px solid rgba(147, 184, 236, 0.3);
  transition: border-color 0.15s ease;
}

.sk-qa-answer a:hover {
  border-color: var(--sk-accent);
}

.sk-about-sections {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.sk-about-section {
  padding: 28px 28px;
  background-color: var(--sk-card);
  border: 1px solid var(--sk-border);
  border-radius: var(--sk-radius);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}

.sk-about-section h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--sk-foreground);
  margin: 0 0 16px 0;
  line-height: 1.3;
  display: flex;
  align-items: center;
  gap: 10px;
}

.sk-about-section h2 .sk-section-icon {
  width: 32px;
  height: 32px;
  background-color: rgba(147, 184, 236, 0.12);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.sk-about-section p {
  font-size: 0.92rem;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.7;
  margin: 0 0 14px 0;
}

.sk-about-section p:last-child {
  margin-bottom: 0;
}

.sk-about-section ul {
  list-style: none;
  padding: 0;
  margin: 0 0 14px 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sk-about-section ul li {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.75);
  line-height: 1.6;
  padding-left: 18px;
  position: relative;
}

.sk-about-section ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--sk-accent);
}

.sk-about-section a {
  color: var(--sk-accent);
  text-decoration: none;
  font-weight: 600;
  transition: opacity 0.15s ease;
}

.sk-about-section a:hover {
  opacity: 0.8;
}

.sk-stat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 16px;
}

@media (min-width: 600px) {
  .sk-stat-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.sk-stat-item {
  background-color: rgba(147, 184, 236, 0.05);
  border: 1px solid rgba(147, 184, 236, 0.15);
  border-radius: var(--sk-radius-md);
  padding: 16px 14px;
  text-align: center;
}

.sk-stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--sk-accent);
  line-height: 1.2;
  margin-bottom: 4px;
}

.sk-stat-label {
  font-size: 0.75rem;
  color: var(--sk-muted-fg);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.sk-inline-link {
  color: var(--sk-accent);
  text-decoration: none;
  font-weight: 600;
  border-bottom: 1px solid rgba(147, 184, 236, 0.35);
  transition: border-color 0.15s ease, color 0.15s ease;
}

.sk-inline-link:hover {
  color: #b8d4f5;
  border-color: #b8d4f5;
}

.sk-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: var(--sk-radius);
  font-family: Roboto, Helvetica, Arial, sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: background-color 0.2s ease, transform 0.15s ease, box-shadow 0.2s ease;
  letter-spacing: 0.02em;
  line-height: 1.5;
}

.sk-btn:active {
  transform: scale(0.97);
}

.sk-btn-primary {
  background-color: var(--sk-accent);
  color: rgba(0, 0, 0, 0.87);
}

.sk-btn-primary:hover {
  background-color: var(--sk-accent-dark);
  box-shadow: 0 4px 16px rgba(147, 184, 236, 0.25);
}

.sk-btn-secondary {
  background-color: rgba(147, 184, 236, 0.1);
  color: var(--sk-accent);
  border: 1px solid rgba(147, 184, 236, 0.25);
}

.sk-btn-secondary:hover {
  background-color: rgba(147, 184, 236, 0.18);
  border-color: rgba(147, 184, 236, 0.4);
}

.sk-btn-ghost {
  background-color: transparent;
  color: var(--sk-muted-fg);
  border: 1px solid var(--sk-border);
}

.sk-btn-ghost:hover {
  background-color: rgba(255, 255, 255, 0.05);
  color: var(--sk-foreground);
  border-color: rgba(255, 255, 255, 0.25);
}

.sk-btn-sm {
  padding: 7px 16px;
  font-size: 0.8rem;
}

.sk-btn-lg {
  padding: 14px 32px;
  font-size: 0.95rem;
}

.sk-bottom-actions {
  margin-top: 56px;
  padding-top: 32px;
  border-top: 1px solid var(--sk-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}

.sk-bottom-actions-links {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.sk-breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 24px;
  font-size: 0.8rem;
  color: var(--sk-muted-fg);
}

.sk-breadcrumb a {
  color: var(--sk-muted-fg);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.15s ease;
}

.sk-breadcrumb a:hover {
  color: var(--sk-foreground);
}

.sk-breadcrumb-sep {
  opacity: 0.4;
  font-size: 0.75rem;
}

.sk-breadcrumb-current {
  color: var(--sk-foreground);
  font-weight: 600;
}

.sk-divider {
  border: none;
  border-top: 1px solid var(--sk-border);
  margin: 32px 0;
}

.sk-tag {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.sk-tag-blue {
  background-color: rgba(147, 184, 236, 0.12);
  color: var(--sk-accent);
  border: 1px solid rgba(147, 184, 236, 0.2);
}

.sk-tag-green {
  background-color: rgba(0, 187, 127, 0.1);
  color: #3cda94;
  border: 1px solid rgba(0, 187, 127, 0.2);
}

.sk-callout {
  background-color: rgba(147, 184, 236, 0.06);
  border: 1px solid rgba(147, 184, 236, 0.2);
  border-left: 4px solid var(--sk-accent);
  border-radius: var(--sk-radius-sm);
  padding: 16px 20px;
  margin: 20px 0;
}

.sk-callout p {
  margin: 0;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.6;
}

.sk-footer-bar {
  background-color: rgba(0, 0, 0, 0.6);
  border-top: 1px solid var(--sk-border);
  padding: 24px;
  text-align: center;
}

.sk-footer-bar p {
  margin: 0;
  font-size: 0.8rem;
  color: var(--sk-muted-fg);
}

.sk-footer-bar a {
  color: var(--sk-accent);
  text-decoration: none;
  font-weight: 600;
}

.sk-footer-bar a:hover {
  text-decoration: underline;
}

.sk-footer-links {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.sk-footer-links a {
  color: var(--sk-muted-fg);
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 500;
  transition: color 0.15s ease;
}

.sk-footer-links a:hover {
  color: var(--sk-foreground);
}

@media (max-width: 600px) {
  .sk-main-content {
    padding: 24px 16px 60px;
  }

  .sk-page-hero h1 {
    font-size: 1.6rem;
  }

  .sk-topbar {
    padding: 10px 16px;
  }

  .sk-about-section {
    padding: 20px 18px;
  }

  .sk-qa-question {
    padding: 14px 16px;
    font-size: 0.9rem;
  }

  .sk-qa-answer {
    padding: 0 16px 14px;
  }

  .sk-card {
    padding: 16px 18px;
  }

  .sk-bottom-actions {
    flex-direction: column;
    align-items: flex-start;
  }
}