/* ===========================
   Rugby Laws Explained — Stylesheet
   Concept: "rulebook, not fan site"
   =========================== */

:root {
  --paper: #f7f8f5;
  --ink: #1c2321;
  --pitch: #2f5233;
  --pitch-dark: #22402a;
  --card: #efede6;
  --gold: #b8912f;
  --hairline: #dad9d2;
  --max-width: 780px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Inter", -apple-system, sans-serif;
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3 {
  font-family: "Fraunces", Georgia, serif;
  font-weight: 600;
  color: var(--pitch-dark);
  line-height: 1.2;
  margin-top: 0;
}

h1 {
  font-size: 1.6rem;
}
h2 {
  font-size: 1.9rem;
  margin-bottom: 0.75rem;
}
h3 {
  font-size: 1.05rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--gold);
  margin-top: 2rem;
  margin-bottom: 0.5rem;
}

a {
  color: var(--pitch);
  text-decoration: none;
  border-bottom: 1px solid var(--hairline);
  transition: border-color 0.15s ease;
}

a:hover,
a:focus-visible {
  border-bottom-color: var(--pitch);
}

a:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 2px;
  border-radius: 2px;
}

header {
  position: sticky;
  top: 0;
  z-index: 10;
}

/* ---------- Layout shell ---------- */

header {
  border-bottom: 1px solid var(--hairline);
  background: var(--paper);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.25rem 1.5rem 1rem;
}

header h1 {
  margin-bottom: 0.5rem;
}

header h1 a {
  border-bottom: none;
  color: var(--pitch-dark);
}

nav {
  font-size: 0.9rem;
  display: flex;
  gap: 1.25rem;
}

nav a {
  border-bottom: none;
  color: var(--ink);
  padding-bottom: 2px;
}

nav a:hover,
nav a.active {
  color: var(--pitch);
  border-bottom: 2px solid var(--gold);
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2.5rem 1.5rem 4rem;
}

footer {
  border-top: 1px solid var(--hairline);
  margin-top: 3rem;
}

footer p {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.5rem;
  font-size: 0.85rem;
  color: #6b7169;
}

/* ---------- Laws index (grouped, numbered) ---------- */

.category-group {
  margin-bottom: 2.5rem;
}

.category-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--gold);
  border-bottom: 1px solid var(--hairline);
  padding-bottom: 0.5rem;
  margin-bottom: 0.75rem;
}

.law-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.law-row {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--hairline);
}

.law-row:last-child {
  border-bottom: none;
}

.law-badge {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.8rem;
  color: var(--pitch);
  border: 1px solid var(--hairline);
  background: var(--card);
  border-radius: 3px;
  padding: 0.15rem 0.45rem;
  min-width: 1.6rem;
  text-align: center;
  flex-shrink: 0;
}

.law-row a {
  border-bottom: none;
  color: var(--ink);
  font-size: 1rem;
}

.law-row a:hover {
  color: var(--pitch);
}

/* ---------- Law detail page ---------- */

.back-link {
  display: inline-block;
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
  border-bottom: none;
  color: #6b7169;
}

.back-link:hover {
  color: var(--pitch);
}

.law-header {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  margin-bottom: 0.25rem;
}

.law-header .law-badge {
  font-size: 1rem;
  padding: 0.3rem 0.6rem;
}

.law-summary {
  font-family: "Fraunces", Georgia, serif;
  font-style: italic;
  color: var(--pitch);
  font-size: 1.1rem;
  border-left: 3px solid var(--gold);
  padding-left: 1rem;
  margin: 1.25rem 0 0.5rem;
}

/* ---------- Glossary ---------- */

dl {
  margin: 0;
}

dt {
  font-family: "Fraunces", Georgia, serif;
  font-weight: 600;
  color: var(--pitch-dark);
  margin-top: 1.25rem;
}

dd {
  margin-left: 0;
  color: var(--ink);
}

/* ---------- Explainers ---------- */

.explainer-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.explainer-list li {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--hairline);
}

.explainer-list a {
  border-bottom: none;
  font-size: 1.05rem;
}

/* ---------- Hero (home page) ---------- */

.hero {
  position: relative;
  padding: 2.5rem 1.5rem 3rem;
  margin: -1rem -1.5rem 2.5rem;
  overflow: hidden;
  border-bottom: 1px solid var(--hairline);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.15;
  pointer-events: none;
}

.hero-bg img {
  width: 130%;
  max-width: none;
}

.hero-text {
  position: relative;
  z-index: 1;
  max-width: 560px;
}

.hero-text h2 {
  font-size: 2.1rem;
  margin-bottom: 0.75rem;
}

.hero-text p {
  font-size: 1.1rem;
  color: #3e4a40;
  margin-bottom: 1.5rem;
}

.hero-links {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.button {
  display: inline-block;
  border: 1px solid var(--pitch);
  background: var(--pitch);
  color: var(--paper) !important;
  padding: 0.6rem 1.1rem;
  border-radius: 4px;
  font-size: 0.9rem;
  font-weight: 500;
  border-bottom: 1px solid var(--pitch) !important;
}

.button:hover {
  background: var(--pitch-dark);
  border-color: var(--pitch-dark) !important;
}

.button-secondary {
  background: transparent;
  color: var(--pitch) !important;
}

.button-secondary:hover {
  background: var(--card);
}

/* ---------- Mobile ---------- */

@media (max-width: 600px) {
  h2 {
    font-size: 1.5rem;
  }
  main {
    padding: 1.75rem 1.25rem 3rem;
  }
  nav {
    flex-wrap: wrap;
    gap: 0.75rem 1rem;
  }
}

/* ---------- Reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
  }
}

.last-reviewed {
  margin-top: 2rem;
  font-size: 0.8rem;
  color: #6b7169;
}

/* ---------- Back to top arrow ---------- */
html {
  scroll-behavior: smooth;
}

.back-to-top {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  background: var(--pitch);
  color: var(--paper) !important;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  border: none !important;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.back-to-top:hover {
  background: var(--pitch-dark);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}