:root {
  --bg: #f5f6f2;
  --surface: #ffffff;
  --surface-alt: #eef1ea;
  --text: #0f1411;
  --muted: #4a5651;
  --accent: #1f7a3f;
  --accent-2: #0f3f27;
  --accent-3: #a6d3b6;
  --border: rgba(15, 20, 17, 0.14);
  --shadow: 0 24px 60px rgba(15, 20, 17, 0.14);
  --font-display: "Newsreader", serif;
  --font-body: "Manrope", sans-serif;
}

body {
  background: radial-gradient(circle at top left, rgba(31, 122, 63, 0.12), transparent 55%),
    linear-gradient(180deg, #f5f6f2 0%, #ffffff 45%, #eef2ea 100%);
}

body::before,
body::after {
  content: "";
  position: fixed;
  border-radius: 999px;
  z-index: 0;
  opacity: 0.45;
}

body::before {
  width: 240px;
  height: 240px;
  background: rgba(15, 63, 39, 0.14);
  top: 140px;
  right: 8%;
}

body::after {
  width: 180px;
  height: 180px;
  background: rgba(31, 122, 63, 0.16);
  bottom: 120px;
  left: 8%;
}

.brand-mark {
  background: linear-gradient(135deg, #0f3f27, #1f7a3f);
}

.hero-grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  align-items: center;
}

.hero-copy h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.2rem);
  margin-bottom: 0.8rem;
}

.hero-copy [data-hero-rotator] {
  display: inline-block;
  transition: opacity 0.18s ease, transform 0.18s ease;
  will-change: opacity, transform;
}

.hero-copy [data-hero-rotator].swap-out {
  opacity: 0;
  transform: translateY(-8px);
}

.hero-subhead {
  color: var(--muted);
  font-size: 1.05rem;
  margin: 0 0 0.8rem;
}

.hero-copy,
.hero-panel {
  opacity: 0;
  transform: translateY(12px);
  animation: fadeUp 0.8s ease forwards;
}

.hero-panel {
  animation-delay: 0.12s;
}

.hero-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 3vw, 2.6rem);
  margin-bottom: 0.6rem;
}

.page-hero {
  opacity: 0;
  transform: translateY(12px);
  animation: fadeUp 0.8s ease forwards;
}

.hero-panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 1.5rem;
  box-shadow: var(--shadow);
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}

.panel-list {
  margin: 1.2rem 0;
  display: grid;
  gap: 0.6rem;
}

.panel-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.95rem;
}

.panel-foot {
  color: var(--muted);
  font-size: 0.85rem;
}

.section-header h2 {
  font-family: var(--font-display);
  margin-bottom: 0.5rem;
}

.section-header p {
  color: var(--muted);
}

.section-gap {
  margin-top: 2rem;
}

.subtle {
  background: rgba(255, 255, 255, 0.6);
  border-top: 1px solid rgba(15, 20, 17, 0.08);
  border-bottom: 1px solid rgba(15, 20, 17, 0.08);
}

.kicker {
  color: var(--muted);
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.6rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(31, 122, 63, 0.12);
  color: var(--accent-2);
  border: 1px solid rgba(31, 122, 63, 0.3);
}

.badge.good {
  background: rgba(31, 122, 63, 0.15);
}

.badge.warn {
  background: rgba(223, 152, 74, 0.18);
  color: #7a4a0f;
  border-color: rgba(223, 152, 74, 0.35);
}

.metric {
  color: var(--accent-2);
}

.cta-row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

.section-note {
  margin-top: 2rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.7rem;
  color: var(--muted);
}

.card ul,
.card ol {
  margin: 0.6rem 0 0;
  padding-left: 1.2rem;
  color: var(--muted);
}

.card li {
  margin-bottom: 0.35rem;
}

.use-case {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 1.2rem 1.5rem;
  margin-bottom: 1rem;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.08);
}

.use-case h3 {
  margin-top: 0;
  font-family: var(--font-display);
}

.diagram {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 1.2rem;
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.08);
}

.diagram-node {
  padding: 0.6rem 1rem;
  border-radius: 999px;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  font-weight: 600;
}

.diagram-arrow {
  color: var(--muted);
  font-size: 1.3rem;
}

.timeline {
  margin: 1.5rem 0 0;
  padding-left: 1.2rem;
  color: var(--muted);
}

.timeline li {
  margin-bottom: 0.6rem;
}

.callout {
  margin-top: 2rem;
  padding: 1.5rem;
  border-radius: 18px;
  background: rgba(31, 122, 63, 0.08);
  border: 1px solid rgba(31, 122, 63, 0.18);
}

.callout h3 {
  margin-top: 0;
}

.orbit-card {
  display: grid;
  gap: 1.8rem;
  grid-template-columns: minmax(260px, 1fr) minmax(280px, 340px);
  align-items: center;
  padding: 1.8rem;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(15, 20, 17, 0.12);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.08);
}

.orbit {
  position: relative;
  width: min(320px, 100%);
  aspect-ratio: 1;
  margin-left: auto;
}

.orbit-center {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
}

.orbit-core {
  text-align: center;
  padding: 0.9rem 1rem;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(15, 63, 39, 0.12), rgba(31, 122, 63, 0.2));
  border: 1px solid rgba(31, 122, 63, 0.3);
  font-weight: 700;
  color: var(--accent-2);
}

.orbit-core span {
  display: block;
  font-weight: 600;
  color: var(--muted);
  font-size: 0.85rem;
  margin-top: 0.15rem;
}

.orbit-ring {
  position: absolute;
  inset: 18px;
  border-radius: 50%;
  border: 1px dashed rgba(15, 20, 17, 0.22);
}

.orbit-chip {
  position: absolute;
  top: 50%;
  left: 50%;
  --orbit-radius: min(140px, calc(50% - 60px));
  transform: translate(-50%, -50%) rotate(calc(var(--i) * 60deg)) translate(0, calc(-1 * var(--orbit-radius)))
    rotate(calc(var(--i) * -60deg));
  padding: 0.55rem 0.75rem;
  border-radius: 14px;
  background: var(--surface);
  border: 1px solid rgba(15, 20, 17, 0.12);
  min-width: 92px;
  text-align: left;
  box-shadow: 0 12px 26px rgba(0, 0, 0, 0.1);
  animation: orbitFloat 4.2s ease-in-out infinite;
}

.orbit-chip strong {
  display: block;
  font-size: 0.85rem;
}

.orbit-chip span {
  display: block;
  font-size: 0.75rem;
  color: var(--muted);
}

.orbit-chip:nth-child(2n) {
  animation-delay: 0.3s;
}

.orbit-chip:nth-child(3n) {
  animation-delay: 0.55s;
}

@keyframes orbitFloat {
  0%,
  100% {
    transform: translate(-50%, -50%) rotate(calc(var(--i) * 60deg)) translate(0, calc(-1 * var(--orbit-radius)))
      rotate(calc(var(--i) * -60deg));
  }
  50% {
    transform: translate(-50%, -50%) rotate(calc(var(--i) * 60deg)) translate(0, calc(-1 * (var(--orbit-radius) - 8px)))
      rotate(calc(var(--i) * -60deg));
  }
}

.concept-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.concept-card {
  display: block;
  padding: 1.15rem 1.2rem;
  border-radius: 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: 0 16px 36px rgba(0, 0, 0, 0.08);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
  color: inherit;
  text-decoration: none;
}

.concept-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 22px 46px rgba(0, 0, 0, 0.1);
}

.concept-card h4 {
  margin: 0;
  font-family: var(--font-display);
}

.concept-card p {
  margin: 0.5rem 0 0;
  color: var(--muted);
}

.pricing-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.pricing-grid .highlight {
  border: 1px solid rgba(31, 122, 63, 0.35);
  box-shadow: 0 26px 50px rgba(31, 122, 63, 0.18);
}

.roi-card {
  margin-top: 2rem;
  background: var(--surface);
  border-radius: 20px;
  border: 1px solid var(--border);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}

.roi-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  margin-bottom: 1.5rem;
}

.roi-grid label {
  display: grid;
  gap: 0.4rem;
  font-size: 0.9rem;
}

.roi-grid input {
  padding: 0.6rem 0.7rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  font-family: var(--font-body);
}

.roi-output {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  margin-bottom: 1rem;
}

.notice {
  color: var(--muted);
  font-size: 0.9rem;
}

.table-wrapper {
  overflow-x: auto;
}

.table-wrapper table {
  width: 100%;
  border-collapse: collapse;
  background: var(--surface);
  border-radius: 18px;
  overflow: hidden;
  box-shadow: 0 16px 38px rgba(0, 0, 0, 0.08);
}

.table-wrapper th,
.table-wrapper td {
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--border);
  text-align: left;
}

.table-wrapper th {
  background: var(--surface-alt);
  font-weight: 600;
}

.accordion {
  margin-top: 1.5rem;
  padding: 1rem 1.2rem;
  border-radius: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
}

.accordion summary {
  cursor: pointer;
  font-weight: 600;
}

.panel-form {
  margin-top: 2rem;
  display: grid;
  gap: 0.9rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 1.5rem;
  box-shadow: var(--shadow);
}

.panel-form label {
  display: grid;
  gap: 0.4rem;
  font-size: 0.9rem;
}

body[data-page="quiz"] .panel-form label {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.95rem;
  color: var(--text);
}

body[data-page="quiz"] .panel-form label input[type="radio"] {
  margin-top: 0.15rem;
  justify-self: start;
  width: auto;
  padding: 0;
}

.panel-form input,
.panel-form textarea {
  padding: 0.6rem 0.7rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  font-family: var(--font-body);
}

.panel-form textarea {
  min-height: 120px;
  resize: vertical;
}

.status-grid {
  display: grid;
  gap: 1.2rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.memo-header h1 {
  font-family: var(--font-display);
}

.memo-body h2 {
  font-family: var(--font-display);
  margin-top: 2rem;
}

@media (max-width: 900px) {
  .nav-links {
    display: none;
  }
  .header-actions {
    flex-wrap: wrap;
    justify-content: flex-end;
  }
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .orbit-card {
    grid-template-columns: 1fr;
  }
  .orbit {
    margin: 0 auto;
  }
}

@media (prefers-reduced-motion: reduce) {
  .hero-copy,
  .hero-panel,
  .page-hero {
    animation: none;
    opacity: 1;
    transform: none;
  }
  .orbit-chip {
    animation: none;
  }
}

@media print {
  .top-banner,
  .site-header,
  .footer,
  .cta,
  .cta-row,
  .route-switcher {
    display: none !important;
  }
  body {
    background: #ffffff;
  }
  .memo-header,
  .memo-body {
    page-break-inside: avoid;
  }
}