:root {
  --pc-bg: #0b1217;
  --pc-surface: #111c23;
  --pc-surface-2: #16242c;
  --pc-text: #e7f0ef;
  --pc-muted: #8fa2a8;
  --pc-primary: #2dd4bf;
  --pc-primary-dark: #14b8a6;
  --pc-border: rgba(148, 163, 184, 0.18);
}

#pc-reading-progress {
  position: fixed;
  inset: 0 auto auto 0;
  z-index: 100;
  width: 0;
  height: 3px;
  pointer-events: none;
  background: linear-gradient(90deg, #2dd4bf, #72cf44, #f7e83b);
  box-shadow: 0 0 18px rgba(45, 212, 191, 0.55);
}

nav a.pc-active {
  color: var(--pc-primary) !important;
  background: rgba(45, 212, 191, 0.08);
}

.pc-enhancement-section {
  position: relative;
  overflow: hidden;
  padding: 5.5rem 1.5rem;
  color: var(--pc-text);
  background:
    radial-gradient(circle at 15% 15%, rgba(45, 212, 191, 0.09), transparent 32rem),
    var(--pc-bg);
}

.pc-enhancement-section.pc-alt {
  background:
    radial-gradient(circle at 85% 25%, rgba(114, 207, 68, 0.08), transparent 30rem),
    #0e171d;
}

.pc-section-inner {
  width: min(1120px, 100%);
  margin: 0 auto;
}

.pc-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin-bottom: 1rem;
  color: var(--pc-primary);
  font-size: 0.76rem;
  font-weight: 750;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.pc-eyebrow::before {
  width: 1.8rem;
  height: 1px;
  content: "";
  background: currentColor;
}

.pc-section-heading {
  max-width: 800px;
  margin: 0;
  color: var(--pc-text);
  font-size: clamp(2rem, 5vw, 3.55rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.035em;
}

.pc-section-heading span {
  color: var(--pc-primary);
}

.pc-section-lead {
  max-width: 720px;
  margin: 1.25rem 0 2.3rem;
  color: #b6c4c8;
  font-size: 1.05rem;
  line-height: 1.75;
}

.pc-card-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.pc-resource-card {
  position: relative;
  min-height: 255px;
  padding: 1.5rem;
  overflow: hidden;
  color: inherit;
  text-decoration: none;
  border: 1px solid var(--pc-border);
  border-radius: 1.1rem;
  background:
    linear-gradient(155deg, rgba(45, 212, 191, 0.08), transparent 48%),
    rgba(17, 28, 35, 0.76);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.16);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.pc-resource-card:hover,
.pc-resource-card:focus-visible {
  transform: translateY(-6px);
  border-color: rgba(45, 212, 191, 0.48);
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.28), 0 0 30px rgba(45, 212, 191, 0.08);
  outline: none;
}

.pc-card-number {
  display: inline-grid;
  width: 2.45rem;
  height: 2.45rem;
  margin-bottom: 2rem;
  place-items: center;
  color: var(--pc-primary);
  font-size: 0.8rem;
  font-weight: 800;
  border: 1px solid rgba(45, 212, 191, 0.35);
  border-radius: 0.75rem;
  background: rgba(45, 212, 191, 0.09);
}

.pc-resource-card h3 {
  margin: 0 0 0.75rem;
  color: var(--pc-text);
  font-size: 1.1rem;
  line-height: 1.35;
}

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

.pc-card-link {
  position: absolute;
  right: 1.4rem;
  bottom: 1.2rem;
  color: var(--pc-primary);
  font-size: 0.8rem;
  font-weight: 750;
}

.pc-planner-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 1.3rem;
  align-items: stretch;
}

.pc-planner-copy,
.pc-planner-panel {
  padding: clamp(1.5rem, 4vw, 2.25rem);
  border: 1px solid var(--pc-border);
  border-radius: 1.25rem;
  background: rgba(17, 28, 35, 0.78);
}

.pc-planner-copy h3,
.pc-planner-panel h3 {
  margin: 0 0 0.75rem;
  color: var(--pc-text);
  font-size: 1.35rem;
}

.pc-planner-copy p,
.pc-planner-panel p {
  color: var(--pc-muted);
  line-height: 1.7;
}

.pc-mode-switch {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.45rem;
  padding: 0.35rem;
  margin-bottom: 1.5rem;
  border: 1px solid var(--pc-border);
  border-radius: 0.8rem;
  background: #0b141a;
}

.pc-mode-switch button {
  padding: 0.78rem 1rem;
  color: var(--pc-muted);
  font: inherit;
  font-size: 0.86rem;
  font-weight: 750;
  border: 0;
  border-radius: 0.6rem;
  background: transparent;
  cursor: pointer;
}

.pc-mode-switch button[aria-pressed="true"] {
  color: #071512;
  background: var(--pc-primary);
}

.pc-input-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.pc-field label {
  display: block;
  margin-bottom: 0.5rem;
  color: #b8c6c9;
  font-size: 0.8rem;
  font-weight: 700;
}

.pc-field input {
  width: 100%;
  box-sizing: border-box;
  padding: 0.85rem 0.95rem;
  color: var(--pc-text);
  font: inherit;
  border: 1px solid var(--pc-border);
  border-radius: 0.7rem;
  background: #0b141a;
  outline: none;
}

.pc-field input:focus {
  border-color: var(--pc-primary);
  box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.12);
}

.pc-result-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.pc-result-card {
  padding: 1.1rem;
  border: 1px solid rgba(45, 212, 191, 0.2);
  border-radius: 0.85rem;
  background: rgba(45, 212, 191, 0.06);
}

.pc-result-card span {
  display: block;
  color: var(--pc-muted);
  font-size: 0.75rem;
}

.pc-result-card strong {
  display: block;
  margin-top: 0.3rem;
  color: var(--pc-primary);
  font-size: clamp(1.25rem, 3vw, 2rem);
}

.pc-result-note {
  margin: 1rem 0 0 !important;
  color: #71868d !important;
  font-size: 0.75rem;
}

.pc-faq-list {
  display: grid;
  gap: 0.7rem;
  max-width: 900px;
  margin-top: 2rem;
}

.pc-faq-list details {
  border: 1px solid var(--pc-border);
  border-radius: 0.95rem;
  background: rgba(17, 28, 35, 0.72);
}

.pc-faq-list details[open] {
  border-color: rgba(45, 212, 191, 0.34);
}

.pc-faq-list summary {
  position: relative;
  padding: 1.25rem 3.2rem 1.25rem 1.25rem;
  color: var(--pc-text);
  font-weight: 750;
  cursor: pointer;
  list-style: none;
}

.pc-faq-list summary::-webkit-details-marker {
  display: none;
}

.pc-faq-list summary::after {
  position: absolute;
  top: 50%;
  right: 1.25rem;
  content: "+";
  color: var(--pc-primary);
  font-size: 1.35rem;
  transform: translateY(-50%);
}

.pc-faq-list details[open] summary::after {
  content: "−";
}

.pc-faq-answer {
  padding: 0 1.25rem 1.25rem;
  color: var(--pc-muted);
  line-height: 1.75;
}

.pc-text-link {
  display: inline-flex;
  margin-top: 1.4rem;
  color: var(--pc-primary);
  font-weight: 750;
  text-decoration: none;
}

.pc-float-actions {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 80;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.65rem;
}

.pc-float-button {
  display: inline-flex;
  min-width: 2.9rem;
  min-height: 2.9rem;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  padding: 0.75rem 0.95rem;
  color: #071512;
  font-size: 0.82rem;
  font-weight: 800;
  text-decoration: none;
  border: 0;
  border-radius: 999px;
  background: var(--pc-primary);
  box-shadow: 0 12px 34px rgba(0, 0, 0, 0.32);
  cursor: pointer;
  transition: transform 160ms ease, filter 160ms ease;
}

.pc-float-button:hover,
.pc-float-button:focus-visible {
  transform: translateY(-2px);
  filter: brightness(1.08);
  outline: 2px solid #fff;
  outline-offset: 2px;
}

.pc-float-button.pc-scroll-top {
  min-width: 2.9rem;
  width: 2.9rem;
  padding-inline: 0;
  color: var(--pc-text);
  border: 1px solid var(--pc-border);
  background: rgba(17, 28, 35, 0.94);
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
}

.pc-float-button.pc-scroll-top.pc-visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

[data-pc-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 560ms ease, transform 560ms ease;
}

[data-pc-reveal].pc-revealed {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 900px) {
  .pc-card-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .pc-planner-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 600px) {
  .pc-enhancement-section {
    padding: 4.2rem 1.25rem;
  }

  .pc-card-grid,
  .pc-input-grid,
  .pc-result-grid {
    grid-template-columns: 1fr;
  }

  .pc-resource-card {
    min-height: 225px;
  }

  .pc-float-button span {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
  }

  [data-pc-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .pc-resource-card,
  .pc-float-button {
    transition: none;
  }
}