@keyframes fadeSlideUp {
  0% { opacity: 0; transform: translateY(24px); }
  100% { opacity: 1; transform: none; }
}

.reveal {
  opacity: 0;
  animation: fadeSlideUp 0.8s ease forwards;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-ui);
  color: var(--sp-text);
  background: var(--sp-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

.pp-header {
  background:
    radial-gradient(90vw 90vw at -10% -20%, rgba(20, 144, 138, .25) 0%, rgba(20, 144, 138, 0) 60%),
    linear-gradient(135deg, var(--sp-primary) 0%, #0e5b66 52%, #0b4b56 100%);
  color: #fff;
  text-align: center;
  padding: 56px 24px 48px;
  position: relative;
}

.pp-header-logo {
  display: block;
  margin: 0 auto 24px;
  max-width: min(280px, 60vw);
  filter: brightness(0) invert(1);
}

.pp-header h1 {
  font-family: var(--font-brand);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 8px;
  letter-spacing: -0.01em;
}

.pp-header .pp-subtitle {
  font-size: clamp(0.95rem, 2vw, 1.15rem);
  opacity: 0.85;
  font-weight: 400;
}

.pp-header .pp-effective {
  margin-top: 16px;
  font-size: 0.9rem;
  opacity: 0.7;
}

.pp-back {
  position: absolute;
  top: 20px;
  left: 20px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px 9px 14px;
  color: #fff;
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  transition: background var(--sp-transition-fast),
              border-color var(--sp-transition-fast),
              transform var(--sp-transition-fast),
              box-shadow var(--sp-transition-fast);
  z-index: 10;
}

.pp-back .bi {
  font-size: 1rem;
  line-height: 1;
  transition: transform var(--sp-transition-fast);
}

.pp-back:hover {
  background: rgba(255, 255, 255, 0.22);
  border-color: rgba(255, 255, 255, 0.45);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.16);
  color: #fff;
  transform: translateY(-1px);
}

.pp-back:hover .bi {
  transform: translateX(-3px);
}

.pp-back:active {
  transform: translateY(0);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.12);
}

@media (max-width: 600px) {
  .pp-back {
    top: 14px;
    left: 14px;
    padding: 7px 13px 7px 11px;
    font-size: 0.85rem;
  }
}

/* ── Language Switcher ── */
.pp-lang {
  position: absolute;
  top: 20px;
  right: 20px;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 999px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
  z-index: 10;
}

.pp-lang__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
  padding: 6px 12px;
  border-radius: 999px;
  color: #fff;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-decoration: none;
  text-transform: uppercase;
  opacity: 0.78;
  transition: background var(--sp-transition-fast),
              color var(--sp-transition-fast),
              opacity var(--sp-transition-fast);
}

.pp-lang__btn:hover {
  opacity: 1;
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
}

.pp-lang__btn--active,
.pp-lang__btn--active:hover {
  background: #fff;
  color: var(--sp-primary);
  opacity: 1;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
  cursor: default;
}

@media (max-width: 600px) {
  .pp-lang {
    top: 14px;
    right: 14px;
    padding: 3px;
    gap: 2px;
  }
  .pp-lang__btn {
    min-width: 32px;
    padding: 5px 9px;
    font-size: 0.75rem;
  }
}

.pp-container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

/* ── Two-column layout: sticky TOC + content ── */
.pp-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 56px;
  align-items: start;
  margin-top: 8px;
}

.pp-content {
  min-width: 0;
  max-width: 760px;
}

@media (max-width: 960px) {
  .pp-container { max-width: 820px; }
  .pp-layout {
    grid-template-columns: 1fr;
    gap: 0;
  }
  .pp-content { max-width: none; }
}

.pp-section {
  margin-bottom: 40px;
  scroll-margin-top: 24px;
}

/* ── Document Switcher (tabs) ── */
.pp-docs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin: 0 auto 28px;
  padding: 6px;
  background: var(--sp-surface);
  border: 1px solid var(--sp-border);
  border-radius: 999px;
  width: max-content;
  max-width: 100%;
  box-shadow: var(--sp-shadow-sm);
}

.pp-docs__tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: 999px;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--sp-text-muted, #6b7280);
  text-decoration: none;
  letter-spacing: 0.01em;
  white-space: nowrap;
  transition: background var(--sp-transition-fast),
              color var(--sp-transition-fast),
              transform var(--sp-transition-fast),
              box-shadow var(--sp-transition-fast);
}

.pp-docs__tab .bi {
  font-size: 1.05rem;
  line-height: 1;
  color: inherit;
}

.pp-docs__logo {
  width: 22px;
  height: 22px;
  border-radius: 6px;
  object-fit: cover;
  display: block;
  flex-shrink: 0;
  background: #fff;
  box-shadow: 0 1px 2px rgba(21, 46, 63, 0.12);
  transition: transform var(--sp-transition-fast),
              box-shadow var(--sp-transition-fast);
}

.pp-docs__tab:hover {
  color: var(--sp-primary);
  background: var(--sp-surface-2);
}

.pp-docs__tab:hover .pp-docs__logo {
  transform: scale(1.06);
}

.pp-docs__tab--active,
.pp-docs__tab--active:hover {
  background: var(--sp-primary);
  color: #fff;
  box-shadow: 0 2px 8px rgba(21, 46, 63, 0.18);
  cursor: default;
}

.pp-docs__tab--active .bi {
  color: var(--sp-orange);
}

.pp-docs__tab--active .pp-docs__logo {
  box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.85),
              0 2px 6px rgba(0, 0, 0, 0.18);
}

@media (max-width: 600px) {
  .pp-docs {
    gap: 4px;
    padding: 4px;
    margin-bottom: 22px;
  }
  .pp-docs__tab {
    padding: 8px 13px;
    font-size: 0.85rem;
    gap: 6px;
  }
  .pp-docs__tab .bi { font-size: 0.98rem; }
  .pp-docs__logo { width: 20px; height: 20px; border-radius: 5px; }
}

.pp-doc-title {
  text-align: center;
  margin-bottom: 32px;
  padding-bottom: 28px;
  border-bottom: 2px solid var(--sp-border);
}

.pp-doc-title h2 {
  font-family: var(--font-brand);
  font-size: clamp(1.8rem, 4.5vw, 2.6rem);
  font-weight: 700;
  color: var(--sp-primary);
  margin: 0 0 10px;
  letter-spacing: -0.01em;
  text-transform: uppercase;
}

.pp-doc-subtitle {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: var(--sp-text);
  margin: 0 0 8px;
  font-weight: 500;
}

.pp-doc-effective {
  font-size: 0.9rem;
  color: var(--sp-text-muted, #6b7280);
  margin: 0;
}

.pp-section h2 {
  font-family: var(--font-brand);
  font-size: clamp(1.2rem, 3vw, 1.55rem);
  font-weight: 700;
  color: var(--sp-primary);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--sp-border);
  letter-spacing: -0.01em;
}

.pp-section h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin: 20px 0 8px;
  color: var(--sp-text);
}

.pp-section p {
  margin-bottom: 12px;
  font-size: 0.97rem;
  color: var(--sp-text);
}

.pp-section ul {
  padding-left: 24px;
  margin-bottom: 14px;
}

.pp-section ul li {
  margin-bottom: 6px;
  font-size: 0.97rem;
  color: var(--sp-text);
}

.pp-section ul li::marker {
  color: var(--sp-primary);
}

.pp-table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  border-radius: var(--sp-radius-lg);
  overflow: hidden;
  margin: 16px 0 20px;
  box-shadow: var(--sp-shadow-sm);
}

.pp-table th,
.pp-table td {
  padding: 12px 16px;
  text-align: left;
  font-size: 0.92rem;
  border-bottom: 1px solid var(--sp-border);
}

.pp-table th {
  background: var(--sp-primary);
  color: #fff;
  font-weight: 600;
  font-size: 0.88rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.pp-table td {
  background: var(--sp-surface);
  color: var(--sp-text);
}

.pp-table tr:last-child td {
  border-bottom: none;
}

.pp-table tr:hover td {
  background: var(--sp-surface-2);
}

.pp-highlight {
  background: var(--sp-surface);
  border-left: 4px solid var(--sp-primary);
  padding: 16px 20px;
  border-radius: 0 var(--sp-radius-md) var(--sp-radius-md) 0;
  margin: 16px 0;
  font-size: 0.95rem;
  box-shadow: var(--sp-shadow-sm);
}

.pp-highlight strong {
  color: var(--sp-primary);
}

.pp-important {
  background: rgba(240, 127, 3, 0.08);
  border-left: 4px solid var(--sp-orange);
  padding: 16px 20px;
  border-radius: 0 var(--sp-radius-md) var(--sp-radius-md) 0;
  margin: 16px 0;
  font-size: 0.95rem;
}

.pp-important strong {
  color: var(--sp-orange);
}

.pp-contact-card {
  background: var(--sp-surface);
  border-radius: var(--sp-radius-lg);
  padding: 28px 32px;
  box-shadow: var(--sp-shadow-md);
  text-align: center;
  margin-top: 32px;
}

.pp-contact-card h3 {
  font-family: var(--font-brand);
  font-size: 1.2rem;
  margin-bottom: 12px;
  color: var(--sp-text);
}

.pp-contact-card p {
  font-size: 0.95rem;
  color: var(--sp-text-muted);
  margin-bottom: 4px;
}

.pp-contact-card a {
  color: var(--sp-primary);
  text-decoration: none;
  font-weight: 600;
  transition: color var(--sp-transition-fast);
}

.pp-contact-card a:hover {
  color: var(--sp-orange);
}

.pp-divider {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--sp-primary), var(--sp-orange));
  border: none;
  border-radius: 2px;
  margin: 40px auto;
}

.pp-footer {
  text-align: center;
  padding: 24px;
  font-size: 0.85rem;
  color: var(--sp-text-muted);
  border-top: 1px solid var(--sp-border);
}

.pp-footer a {
  color: var(--sp-primary);
  text-decoration: none;
}

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

/* ── Sticky Table of Contents (sidebar) ── */
.pp-toc {
  position: sticky;
  top: 24px;
  align-self: start;
  background: var(--sp-surface);
  border-radius: var(--sp-radius-lg);
  padding: 20px 18px 20px 22px;
  box-shadow: var(--sp-shadow-sm);
  border: 1px solid var(--sp-border);
  max-height: calc(100vh - 48px);
  overflow-y: auto;
  scrollbar-width: thin;
}

.pp-toc::-webkit-scrollbar { width: 6px; }
.pp-toc::-webkit-scrollbar-thumb {
  background: var(--sp-border);
  border-radius: 3px;
}

.pp-toc h3 {
  font-family: var(--font-brand);
  font-size: 0.78rem;
  margin: 0 0 14px;
  color: var(--sp-text-muted, #6b7280);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
}

.pp-toc ol {
  list-style: none;
  padding: 0;
  margin: 0;
  position: relative;
}

/* Vertical track line + filled progress overlay */
.pp-toc ol::before,
.pp-toc ol::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  border-radius: 1px;
}
.pp-toc ol::before {
  background: var(--sp-border);
}
.pp-toc ol::after {
  background: var(--sp-orange);
  bottom: auto;
  height: var(--pp-progress, 0px);
  transition: height 0.12s linear;
  box-shadow: 0 0 6px rgba(240, 127, 3, 0.35);
}

.pp-toc ol li {
  position: relative;
  padding: 0 0 0 22px;
  margin: 0;
  font-size: 0.85rem;
  line-height: 1.35;
}

.pp-toc ol li + li { margin-top: 2px; }

/* Marker dot (state indicator) */
.pp-toc ol li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--sp-surface);
  border: 2px solid var(--sp-border);
  transition: background 0.2s, border-color 0.2s, transform 0.2s;
  z-index: 1;
  box-sizing: border-box;
}

.pp-toc ol li a {
  display: block;
  padding: 6px 8px 6px 4px;
  color: var(--sp-text-muted, #6b7280);
  text-decoration: none;
  border-radius: 6px;
  transition: color var(--sp-transition-fast),
              background var(--sp-transition-fast);
}

.pp-toc ol li a:hover {
  color: var(--sp-orange);
  background: rgba(240, 127, 3, 0.05);
}

/* State: passed (above current section) */
.pp-toc ol li.is-passed::before {
  background: var(--sp-orange);
  border-color: var(--sp-orange);
}
.pp-toc ol li.is-passed a {
  color: var(--sp-text);
}

/* State: active (current section in view) */
.pp-toc ol li.is-active::before {
  background: var(--sp-orange);
  border-color: var(--sp-orange);
  transform: scale(1.35);
  box-shadow: 0 0 0 4px rgba(240, 127, 3, 0.18);
}
.pp-toc ol li.is-active a {
  color: var(--sp-orange);
  font-weight: 700;
  background: rgba(240, 127, 3, 0.08);
}

/* Mobile: fall back to a normal block above content */
@media (max-width: 960px) {
  .pp-toc {
    position: static;
    max-height: none;
    overflow: visible;
    margin-bottom: 32px;
  }
  .pp-toc ol::before,
  .pp-toc ol::after {
    display: none;
  }
  .pp-toc ol li::before {
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
  }
  .pp-toc ol li.is-active::before {
    transform: translateY(-50%) scale(1.35);
  }
}

@media (max-width: 600px) {
  .pp-header { padding: 40px 16px 36px; }
  .pp-container { padding: 28px 16px 60px; }
  .pp-table th,
  .pp-table td { padding: 10px 12px; font-size: 0.85rem; }
  .pp-contact-card { padding: 20px 18px; }
}