:root {
  --bg: #fff7fb;
  --bg-strong: #ffeaf4;
  --panel: rgba(255, 255, 255, 0.9);
  --panel-strong: #ffffff;
  --ink: #4d2d39;
  --muted: #775b66;
  --line: rgba(120, 72, 92, 0.12);
  --primary: #e87ca9;
  --primary-soft: #ffd9ea;
  --coral: #f7a7a8;
  --mint: #bfe7d6;
  --purple: #d7c5ff;
  --amber: #f8dd9d;
  --shadow: 0 18px 45px rgba(181, 116, 146, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", sans-serif;
  background:
    linear-gradient(rgba(255, 255, 255, 0.72), rgba(255, 255, 255, 0.78)),
    url("https://img.magnific.com/free-vector/frame-with-dogs-vector-white-background_53876-127700.jpg?semt=ais_hybrid&w=740&q=80") center/cover no-repeat fixed;
  color: var(--ink);
}

img {
  max-width: 100%;
  display: block;
}

button,
select {
  font: inherit;
}

.page-shell {
  max-width: 1280px;
  margin: 0 auto;
  padding: 28px 24px 60px;
}

.topbar {
  position: sticky;
  top: 14px;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 22px;
  background: rgba(255, 255, 255, 0.75);
  border: 1px solid var(--line);
  border-radius: 18px;
  backdrop-filter: blur(10px);
  box-shadow: 0 8px 25px rgba(15, 36, 61, 0.05);
}

.brand-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
}

.logo-mark {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background-image: url("paw%20print%20.webp");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: transparent;
  display: grid;
  place-items: center;
  font-weight: 800;
  box-shadow: 0 10px 25px rgba(232, 124, 169, 0.22);
  overflow: hidden;
  font-size: 0;
  line-height: 0;
}

.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--muted);
}

.brand-wrap h1 {
  margin: 4px 0 0;
  font-size: 1.25rem;
}

.author-credit {
  margin: 4px 0 0;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--muted);
}

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

.nav-links a {
  color: var(--ink);
  text-decoration: none;
  font-weight: 700;
  opacity: 0.8;
  padding: 0.7rem 0.9rem;
  border-radius: 10px;
  border: 1px solid transparent;
  transition: all 0.18s ease;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  background: rgba(232, 124, 169, 0.1);
  border-color: rgba(232, 124, 169, 0.18);
  opacity: 1;
}

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 26px;
  margin-top: 28px;
}

.hero-copy,
.hero-panel,
.panel,
.stat-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 24px;
  box-shadow: var(--shadow);
}

.hero-copy {
  padding: 36px 34px;
}

.hero-copy h2 {
  margin: 12px 0 16px;
  font-size: clamp(2.2rem, 4vw, 4rem);
  line-height: 1.05;
  letter-spacing: -0.05em;
}

.lead {
  margin: 0;
  max-width: 62ch;
  color: var(--muted);
  font-size: 1.04rem;
  line-height: 1.7;
}

.cta-row {
  display: flex;
  gap: 14px;
  margin-top: 24px;
  flex-wrap: wrap;
}

.primary-btn,
.secondary-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.9rem 1.3rem;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 700;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.primary-btn {
  background: linear-gradient(135deg, #ffd7e8, #f8cfe2);
  color: #4d2d39;
  box-shadow: 0 14px 24px rgba(232, 124, 169, 0.18);
}

.secondary-btn {
  background: linear-gradient(135deg, #fff0f5, #fdf1dc);
  color: #4d2d39;
  border: 1px solid rgba(77, 45, 57, 0.08);
}

.primary-btn:hover,
.secondary-btn:hover {
  transform: translateY(-1px);
}

.hero-panel {
  padding: 20px;
  display: grid;
  gap: 14px;
}

.metric-card {
  background: linear-gradient(180deg, rgba(255,255,255,0.96), rgba(246,250,255,0.96));
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.metric-card.highlight {
  background: linear-gradient(135deg, rgba(232, 124, 169, 0.12), rgba(215, 197, 255, 0.14));
}

.metric-card .label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.metric-card strong {
  font-size: 1.2rem;
}

.metric-card small {
  line-height: 1.5;
  color: var(--muted);
}

.why-section {
  margin-top: 28px;
}

.why-grid {
  display: grid;
  grid-template-columns: 1.1fr 1.3fr;
  gap: 24px;
  align-items: stretch;
}

.why-photo-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.why-photo-panel img {
  width: 100%;
  height: 100%;
  min-height: 440px;
  object-fit: cover;
  object-position: center center;
}

.why-copy {
  padding: 28px 26px;
}

.why-copy p {
  margin: 0 0 16px;
  color: var(--muted);
  line-height: 1.75;
}

.reason-list,
.organization-list ul {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--muted);
  line-height: 1.8;
}

.reason-list {
  margin: 18px 0;
}

.organization-list,
.clinic-list {
  margin-top: 20px;
}

.organization-list h4,
.clinic-list h4 {
  margin: 0 0 10px;
  font-size: 1rem;
}

.organization-list ul {
  list-style: disc;
}

.organization-list a,
.clinic-list p {
  color: var(--ink);
  text-decoration: none;
  font-weight: 600;
}

.organization-list a:hover,
.organization-list a:focus-visible {
  color: var(--primary);
}

.clinic-list p {
  margin: 0 0 8px;
  color: var(--muted);
}

.cute-dogs-section {
  margin-top: 28px;
}

.pet-gallery {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  margin-top: 28px;
}

.pet-card {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 24px;
  overflow: hidden;
  box-shadow: var(--shadow);
}

.pet-card img {
  width: 100%;
  height: 320px;
  object-fit: cover;
  object-position: center center;
}

.pet-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 18px 20px;
}

.pet-meta h3 {
  margin: 6px 0 0;
  font-size: 1.25rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: 0.45rem 0.7rem;
  border-radius: 999px;
  background: rgba(232, 124, 169, 0.12);
  color: var(--primary);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: 28px;
}

.stat-card {
  padding: 20px 18px 18px;
}

.stat-topline {
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.09em;
  font-size: 0.7rem;
  font-weight: 700;
}

.stat-value {
  font-size: clamp(2rem, 2vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.05em;
  margin: 12px 0 8px;
}

.stat-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

section[id] {
  scroll-margin-top: 110px;
}

.dashboard-shell {
  margin-top: 28px;
}

.section-header {
  margin-bottom: 18px;
}

.section-header h3 {
  margin: 8px 0 0;
  font-size: 2rem;
  letter-spacing: -0.04em;
}

.dashboard {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  gap: 24px;
}

.panel {
  padding: 22px;
}

.controls-panel {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.controls-panel h3,
.mini-panel h3,
.narrative-panel h3 {
  margin: 0 0 10px;
  font-size: 1.2rem;
}

label {
  font-weight: 600;
  color: var(--muted);
}

select {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--ink);
  box-shadow: inset 0 1px 2px rgba(15, 36, 61, 0.04);
}

.legend-box {
  margin-top: 10px;
  padding: 16px;
  background: linear-gradient(135deg, rgba(40, 181, 163, 0.09), rgba(15, 123, 255, 0.07));
  border: 1px solid rgba(40, 181, 163, 0.1);
  border-radius: 14px;
}

.legend-box h4 {
  margin: 0 0 8px;
}

.legend-box p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.chart-panel {
  min-height: 520px;
  display: flex;
}

#primaryChart,
#breedChart,
#fertilityChart,
#sexChart,
#conditionChart,
#scatterChart,
#seasonalChart {
  width: 100%;
  min-height: 260px;
}

#scatterChart {
  min-height: 320px;
}

#seasonalChart {
  min-height: 420px;
}

.seasonal-panel {
  margin-top: 24px;
  min-height: 480px;
}

.social-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  margin-top: 24px;
}

.mini-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  margin-top: 24px;
}

.mini-panel {
  min-height: 300px;
}

.scatter-panel {
  grid-column: 1 / -1;
  min-height: 400px;
}

.insight-section {
  margin-top: 24px;
}

.narrative-panel ul {
  padding-left: 1.2rem;
  color: var(--muted);
  line-height: 1.8;
  margin: 0;
}

.narrative-panel li + li {
  margin-top: 8px;
}

.help-page-shell {
  max-width: 1100px;
}

.help-page-main {
  margin-top: 28px;
}

.help-hero {
  padding: 32px 28px;
}

.help-hero h2 {
  margin: 10px 0 16px;
  font-size: clamp(2rem, 3vw, 3rem);
  letter-spacing: -0.05em;
}

.help-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 22px;
  margin-top: 28px;
}

.help-section {
  padding: 24px;
}

.help-section h3 {
  margin-top: 0;
  margin-bottom: 16px;
  font-size: 1.4rem;
  line-height: 1.4;
}

.paw-heading {
  display: flex;
  align-items: center;
  gap: 10px;
}

.paw-heading::before {
  content: "🐾";
  font-size: 1.15rem;
  line-height: 1;
}

.help-section ul {
  margin: 0;
  padding-left: 1.15rem;
  color: var(--muted);
  line-height: 1.8;
}

.help-section li + li {
  margin-top: 12px;
}

.footer {
  margin-top: 28px;
  background: rgba(16, 36, 61, 0.96);
  color: rgba(255, 255, 255, 0.8);
  border-radius: 18px;
  padding: 22px 24px;
  text-align: center;
  line-height: 1.6;
}

@media (max-width: 980px) {
  .hero,
  .dashboard,
  .mini-grid,
  .pet-gallery,
  .stats-grid,
  .help-grid {
    grid-template-columns: 1fr;
  }

  .nav-links {
    display: none;
  }

  .page-shell {
    padding-left: 16px;
    padding-right: 16px;
  }
}