:root {
  --cdp-help-light-bg: #ffffff;
  --cdp-help-light-surface: #f5f5f5;
  --cdp-help-light-border: #e5e7eb;
  --cdp-help-light-text: #0f172a;
  --cdp-help-light-muted: #6b7280;
  --cdp-help-accent: #d9a300;
  --cdp-help-dark-bg: #0b0c10;
  --cdp-help-dark-surface: #151821;
  --cdp-help-dark-border: #1f242f;
  --cdp-help-dark-text: #f3f4f6;
  --cdp-help-dark-muted: #9ca3af;
}

.cdp-help-modal {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 12000;
  padding: 24px;
  box-sizing: border-box;
}

.cdp-help-modal[data-visible="true"] {
  display: flex;
}

.cdp-help-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(3, 7, 18, 0.65);
  backdrop-filter: blur(6px);
}

.cdp-help-panel {
  position: relative;
  width: min(1200px, 96vw);
  height: min(720px, 92vh);
  background: #ffffff;
  border-radius: 28px;
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 24px;
  box-shadow: 0 40px 80px rgba(15, 23, 42, 0.45);
  border: 1px solid #e5e7eb;
  overflow: hidden;
}

body.dark-mode .cdp-help-panel {
  background: #0b0c10;
  border-color: #1f242f;
  color: #f3f4f6;
}

.cdp-help-header {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
}

.cdp-help-eyebrow {
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--cdp-help-light-muted);
  margin: 0 0 4px;
}

body.dark-mode .cdp-help-eyebrow {
  color: var(--cdp-help-dark-muted);
}

.cdp-help-header h2 {
  margin: 0;
  font-size: 28px;
  color: var(--cdp-help-light-text);
}

body.dark-mode .cdp-help-header h2 {
  color: var(--cdp-help-dark-text);
}

.cdp-help-header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.cdp-help-track-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px;
  border-radius: 999px;
  background: var(--cdp-help-light-surface);
  border: 1px solid var(--cdp-help-light-border);
  width: fit-content;
}

body.dark-mode .cdp-help-track-toggle {
  background: var(--cdp-help-dark-surface);
  border-color: var(--cdp-help-dark-border);
}

.cdp-help-track-btn {
  border: none;
  background: transparent;
  color: var(--cdp-help-light-muted);
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 10px 20px;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.2s ease, color 0.2s ease;
}

body.dark-mode .cdp-help-track-btn {
  color: var(--cdp-help-dark-muted);
}

.cdp-help-track-btn--active {
  background: var(--cdp-help-light-text);
  color: #ffffff;
}

body.dark-mode .cdp-help-track-btn--active {
  background: var(--cdp-help-accent);
  color: #0b0c10;
}

.cdp-help-close {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--cdp-help-light-border);
  background: transparent;
  color: var(--cdp-help-light-text);
  font-size: 18px;
  cursor: pointer;
}

body.dark-mode .cdp-help-close {
  border-color: var(--cdp-help-dark-border);
  color: var(--cdp-help-dark-text);
}

.cdp-help-body {
  flex: 1;
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 24px;
  overflow: hidden;
}

.cdp-help-chapters {
  background: var(--cdp-help-light-surface);
  border-radius: 20px;
  padding: 20px;
  border: 1px solid var(--cdp-help-light-border);
  overflow-y: auto;
}

body.dark-mode .cdp-help-chapters {
  background: var(--cdp-help-dark-surface);
  border-color: var(--cdp-help-dark-border);
}

.cdp-help-chapter {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid transparent;
  color: var(--cdp-help-light-text);
  cursor: pointer;
  transition: all 0.2s ease;
  margin-bottom: 10px;
  background: rgba(0,0,0,0.02);
}

.cdp-help-chapter:last-child {
  margin-bottom: 0;
}

body.dark-mode .cdp-help-chapter {
  color: var(--cdp-help-dark-text);
  background: rgba(255,255,255,0.03);
}

.cdp-help-chapter strong {
  display: block;
  font-size: 14px;
}

.cdp-help-chapter span {
  font-size: 12px;
  color: var(--cdp-help-light-muted);
}

body.dark-mode .cdp-help-chapter span {
  color: var(--cdp-help-dark-muted);
}

.cdp-help-chapter i {
  color: var(--cdp-help-accent);
}

.cdp-help-chapter.active {
  border-color: var(--cdp-help-accent);
  background: rgba(217,163,0,0.12);
}

.cdp-help-content {
  background: var(--cdp-help-light-surface);
  border-radius: 20px;
  border: 1px solid var(--cdp-help-light-border);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

body.dark-mode .cdp-help-content {
  background: var(--cdp-help-dark-surface);
  border-color: var(--cdp-help-dark-border);
}

.cdp-help-video-wrapper {
  position: relative;
  flex: 1;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--cdp-help-light-border);
  background: #000;
  min-height: 260px;
}

body.dark-mode .cdp-help-video-wrapper {
  border-color: var(--cdp-help-dark-border);
}

.cdp-help-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: #000;
}

.cdp-help-info {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.cdp-help-pill {
  align-self: flex-start;
  background: rgba(217,163,0,0.18);
  color: var(--cdp-help-light-text);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

body.dark-mode .cdp-help-pill {
  color: var(--cdp-help-dark-text);
}

.cdp-help-info h3 {
  margin: 0;
  font-size: 22px;
  color: var(--cdp-help-light-text);
}

body.dark-mode .cdp-help-info h3 {
  color: var(--cdp-help-dark-text);
}

.cdp-help-info p {
  margin: 0;
  color: var(--cdp-help-light-muted);
  line-height: 1.6;
}

body.dark-mode .cdp-help-info p {
  color: var(--cdp-help-dark-muted);
}

.cdp-help-empty {
  margin: 0;
  padding: 24px 16px;
  text-align: center;
  color: var(--cdp-help-light-muted);
  font-size: 14px;
}

body.dark-mode .cdp-help-empty {
  color: var(--cdp-help-dark-muted);
}

@media (max-width: 1024px) {
  .cdp-help-modal {
    padding: 16px;
  }

  .cdp-help-panel {
    width: min(100%, 1000px);
    height: calc(100vh - 32px);
    padding: 24px 20px 20px;
    gap: 18px;
    border-radius: 22px;
  }

  .cdp-help-header {
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 16px;
  }

  .cdp-help-header-actions,
  .cdp-help-track-toggle {
    width: 100%;
  }

  .cdp-help-track-toggle {
    justify-content: stretch;
  }

  .cdp-help-track-btn {
    flex: 1 1 0;
    text-align: center;
  }

  .cdp-help-body {
    grid-template-columns: 1fr;
    overflow-y: auto;
  }

  .cdp-help-chapters {
    max-height: none;
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(240px, 1fr);
    gap: 12px;
    overflow-x: auto;
    overflow-y: hidden;
    padding: 16px;
  }

  .cdp-help-chapter {
    margin-bottom: 0;
    min-height: 72px;
  }

  .cdp-help-content {
    min-height: 0;
  }
}

@media (max-width: 768px) {
  .cdp-help-modal {
    padding: 8px;
  }

  .cdp-help-panel {
    height: calc(100vh - 16px);
    padding: 18px 14px 14px;
    gap: 14px;
    border-radius: 18px;
  }

  .cdp-help-header h2 {
    font-size: 24px;
  }

  .cdp-help-track-btn {
    padding: 10px 12px;
    font-size: 14px;
  }

  .cdp-help-chapters {
    grid-auto-columns: minmax(220px, 78vw);
    padding: 12px;
  }

  .cdp-help-content {
    padding: 16px;
    gap: 14px;
  }

  .cdp-help-video-wrapper {
    min-height: 240px;
  }

  .cdp-help-info h3 {
    font-size: 20px;
  }
}

@media (max-width: 640px) {
  .cdp-help-modal {
    padding: 0;
    align-items: flex-start;
  }

  .cdp-help-panel {
    width: 100vw;
    height: 100vh;
    border-radius: 0;
    padding: 20px 16px 16px;
  }

  .cdp-help-track-toggle {
    width: 100%;
  }

  .cdp-help-track-btn {
    flex: 1;
    text-align: center;
  }

  .cdp-help-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .cdp-help-body {
    grid-template-columns: 1fr;
    gap: 16px;
    overflow-y: auto;
  }

  .cdp-help-chapters {
    grid-auto-flow: row;
    grid-auto-columns: unset;
    overflow-x: hidden;
    overflow-y: auto;
    max-height: none;
  }

  .cdp-help-content {
    padding: 16px;
  }

  .cdp-help-video-wrapper {
    min-height: 220px;
  }
}