/* ==========================================================================
   Heart Map — theme stylesheet
   Palette:
     #1A1A2E  Deep Navy    — canvas, backgrounds
     #C8A96E  Warm Gold    — headlines, accents, interactive
     #4A7C8E  Muted Teal   — secondary nav, callouts, highlights
     #E8E0D5  Warm Off-White — body text, card surfaces
   Type pairing: Cormorant Garamond (serif, editorial) + Jost (humanist sans)
   ========================================================================== */

/* --- Web fonts ---------------------------------------------------------- */
@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,600;1,300;1,400&family=Jost:wght@300;400;500&display=swap');

/* --- Theme tokens ------------------------------------------------------- */
:root {
  --color-bg:        #1A1A2E;
  --color-gold:      #C8A96E;
  --color-teal:      #4A7C8E;
  --color-text:      #E8E0D5;

  --font-sans:  'Jost', sans-serif;
  --font-serif: 'Cormorant Garamond', Georgia, serif;

  /* Site-specific overrides */
  --section-pad: var(--space-2xl);
}

/* --- Base theme --------------------------------------------------------- */
html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-weight: 300;
}

/* Headings use the serif face */
h1, h2, h3, h4, h5 {
  font-family: var(--font-serif);
  font-weight: 400;
  color: var(--color-gold);
  letter-spacing: -0.01em;
}

h5 {
  font-family: var(--font-sans);
  font-weight: 500;
  font-size: var(--text-sm);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-teal);
}

a {
  color: var(--color-gold);
  text-decoration: none;
  transition: color 0.2s ease, opacity 0.2s ease;
}

a:hover,
a:focus-visible {
  color: var(--color-teal);
  outline: none;
}

a:focus-visible {
  outline: 2px solid var(--color-teal);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

strong, b {
  font-weight: 500;
  color: var(--color-gold);
}

/* --- Skip link ---------------------------------------------------------- */
.skip-link {
  position: absolute;
  top: var(--space-sm);
  left: var(--space-sm);
  background: var(--color-gold);
  color: var(--color-bg);
  padding: var(--space-2xs) var(--space-sm);
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 500;
  transform: translateY(-200%);
  transition: transform 0.2s ease;
  z-index: 100;
}

.skip-link:focus {
  transform: translateY(0);
}

/* --- Site header -------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: #131220;
  border-bottom: 1px solid rgba(200, 169, 110, 0.15);
  padding-block: var(--space-sm);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
}

.site-brand {
  font-family: var(--font-serif);
  font-size: var(--text-xl);
  font-weight: 400;
  color: var(--color-gold);
  letter-spacing: 0.04em;
  text-decoration: none;
  flex-shrink: 0;
}

.site-brand:hover {
  color: var(--color-gold);
  opacity: 0.82;
}

/* --- Site nav ----------------------------------------------------------- */
.site-nav {
  display: flex;
  align-items: center;
}

.nav-links {
  display: flex;
  gap: var(--space-lg);
  list-style: none;
  padding: 0;
  margin: 0;
}

.nav-links a {
  font-family: var(--font-sans);
  font-size: var(--text-sm);
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text);
  text-decoration: none;
  opacity: 0.75;
  transition: color 0.2s ease, opacity 0.2s ease;
}

.nav-links a:hover,
.nav-links a:focus-visible,
.nav-links a[aria-current="page"] {
  color: var(--color-gold);
  opacity: 1;
}

/* --- Site footer -------------------------------------------------------- */
.site-footer {
  border-top: 1px solid rgba(200, 169, 110, 0.12);
  padding-block: var(--space-xl);
  margin-block-start: var(--space-3xl);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  align-items: flex-start;
}

.footer-brand {
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  color: var(--color-gold);
  letter-spacing: 0.04em;
}

.footer-tagline {
  font-size: var(--text-sm);
  color: var(--color-text);
  opacity: 0.5;
  font-weight: 300;
}

.footer-nav {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-block-start: var(--space-xs);
}

.footer-nav a {
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-teal);
  text-decoration: none;
  opacity: 0.8;
  transition: opacity 0.2s ease;
}

.footer-nav a:hover {
  opacity: 1;
  color: var(--color-gold);
}

/* --- Hero section ------------------------------------------------------- */
.hero {
  padding-block: var(--space-3xl) var(--space-2xl);
  border-bottom: 1px solid rgba(200, 169, 110, 0.1);
  position: relative;
  overflow: hidden;
}

/* Decorative CSS grain layer — no raster images */
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(ellipse 80% 60% at 70% 50%, rgba(74, 124, 142, 0.08) 0%, transparent 70%),
    radial-gradient(ellipse 40% 80% at 20% 80%, rgba(200, 169, 110, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  max-width: 56rem;
}

.hero-eyebrow {
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-teal);
  margin-block-end: var(--space-md);
  display: block;
}

.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.8rem, 2rem + 4vw, 5rem);
  font-weight: 300;
  color: var(--color-gold);
  line-height: var(--leading-snug);
  letter-spacing: -0.02em;
  margin-block-end: var(--space-lg);
}

.hero-title em {
  font-style: italic;
  font-weight: 300;
}

.hero-description {
  font-size: var(--text-lg);
  color: var(--color-text);
  opacity: 0.75;
  max-width: 48ch;
  line-height: var(--leading-normal);
  font-weight: 300;
}

/* --- Articles section --------------------------------------------------- */
.articles-section {
  padding-block: var(--space-2xl);
}

.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-md);
  margin-block-end: var(--space-xl);
  padding-block-end: var(--space-md);
  border-bottom: 1px solid rgba(200, 169, 110, 0.12);
  flex-wrap: wrap;
}

.section-title {
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-teal);
}

.section-count {
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  color: var(--color-text);
  opacity: 0.4;
  letter-spacing: 0.08em;
}

/* --- Article card grid -------------------------------------------------- */
.article-grid {
  --grid-min: 20rem;
  --grid-gap: var(--space-lg);
}

.article-card {
  background: rgba(232, 224, 213, 0.03);
  border: 1px solid rgba(200, 169, 110, 0.1);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  transition: border-color 0.25s ease, background 0.25s ease, transform 0.25s ease;
  text-decoration: none;
  color: inherit;
}

.article-card:hover,
.article-card:focus-visible {
  border-color: rgba(200, 169, 110, 0.35);
  background: rgba(200, 169, 110, 0.04);
  transform: translateY(-2px);
  color: inherit;
}

.article-card:focus-visible {
  outline: 2px solid var(--color-teal);
  outline-offset: 3px;
}

.card-label {
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-teal);
}

.card-title {
  font-family: var(--font-serif);
  font-size: var(--text-xl);
  font-weight: 400;
  color: var(--color-gold);
  line-height: var(--leading-snug);
  letter-spacing: -0.01em;
}

.card-excerpt {
  font-size: var(--text-sm);
  color: var(--color-text);
  opacity: 0.65;
  line-height: var(--leading-normal);
  font-weight: 300;
  flex: 1;
}

.card-cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-block-start: var(--space-xs);
  opacity: 0.7;
  transition: opacity 0.2s ease;
}

.article-card:hover .card-cta {
  opacity: 1;
}

.card-cta::after {
  content: '→';
  display: inline-block;
  transition: transform 0.2s ease;
}

.article-card:hover .card-cta::after {
  transform: translateX(3px);
}

/* --- Article page ------------------------------------------------------- */
.article-page {
  padding-block: var(--space-2xl);
}

.article-back {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-teal);
  text-decoration: none;
  margin-block-end: var(--space-xl);
  opacity: 0.8;
  transition: opacity 0.2s ease;
}

.article-back::before {
  content: '←';
}

.article-back:hover {
  opacity: 1;
  color: var(--color-gold);
}

.article-header {
  margin-block-end: var(--space-2xl);
  padding-block-end: var(--space-xl);
  border-bottom: 1px solid rgba(200, 169, 110, 0.12);
  max-width: var(--measure);
}

.article-header h1 {
  font-size: clamp(2rem, 1.4rem + 3vw, 3.4rem);
  line-height: var(--leading-snug);
  font-weight: 300;
  letter-spacing: -0.02em;
}

.article-label {
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-teal);
  margin-block-end: var(--space-md);
  display: block;
}

/* Article body prose */
.article-body {
  max-width: var(--measure);
}

.article-body p {
  color: var(--color-text);
  font-weight: 300;
  line-height: var(--leading-normal);
  margin-block-start: var(--space-md);
}

.article-body p:first-child {
  font-size: var(--text-lg);
  font-family: var(--font-serif);
  font-weight: 300;
  font-style: italic;
  color: var(--color-text);
  opacity: 0.88;
  margin-block-start: 0;
}

.article-body h2 {
  font-size: var(--text-2xl);
  margin-block-start: var(--space-xl);
  margin-block-end: var(--space-sm);
}

.article-body h3 {
  font-size: var(--text-xl);
  margin-block-start: var(--space-xl);
  margin-block-end: var(--space-sm);
}

.article-body h4 {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-gold);
  letter-spacing: 0.04em;
  margin-block-start: var(--space-lg);
  margin-block-end: var(--space-xs);
}

.article-body h5 {
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-teal);
  margin-block-start: var(--space-lg);
  margin-block-end: var(--space-xs);
}

/* Decorative drop-cap on article openers */
.article-body > p:first-child::first-letter {
  font-family: var(--font-serif);
  font-size: 4em;
  font-weight: 400;
  color: var(--color-gold);
  float: left;
  line-height: 0.82;
  margin-inline-end: var(--space-2xs);
  margin-block-start: var(--space-3xs);
}

/* --- Field Guide page --------------------------------------------------- */
.field-guide-hero {
  padding-block: var(--space-3xl) var(--space-xl);
  border-bottom: 1px solid rgba(200, 169, 110, 0.1);
  position: relative;
  overflow: hidden;
}

.field-guide-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(ellipse 60% 70% at 80% 30%, rgba(74, 124, 142, 0.1) 0%, transparent 70%),
    radial-gradient(ellipse 50% 50% at 10% 90%, rgba(200, 169, 110, 0.05) 0%, transparent 70%);
  pointer-events: none;
}

.field-guide-content {
  position: relative;
  max-width: 52rem;
}

.field-guide-content .hero-title {
  font-size: clamp(2.2rem, 1.6rem + 3.5vw, 4rem);
}

.guide-intro {
  font-family: var(--font-serif);
  font-size: var(--text-lg);
  font-style: italic;
  color: var(--color-text);
  opacity: 0.8;
  max-width: 52ch;
  line-height: var(--leading-normal);
  margin-block-start: var(--space-md);
  font-weight: 300;
}

/* --- Glossary entries --------------------------------------------------- */
.glossary-section {
  padding-block: var(--space-2xl);
}

.glossary-grid {
  display: grid;
  gap: var(--space-2xl);
  margin-block-start: var(--space-xl);
}

@media (min-width: 768px) {
  .glossary-grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-xl) var(--space-2xl);
  }
}

.glossary-entry {
  border-left: 2px solid rgba(200, 169, 110, 0.25);
  padding-left: var(--space-lg);
}

.entry-term {
  font-family: var(--font-serif);
  font-size: var(--text-2xl);
  font-weight: 400;
  color: var(--color-gold);
  line-height: var(--leading-snug);
  letter-spacing: -0.01em;
  margin-block-end: var(--space-sm);
}

.entry-label {
  font-family: var(--font-sans);
  font-size: var(--text-xs);
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-teal);
  display: block;
  margin-block-end: var(--space-xs);
}

.entry-body {
  color: var(--color-text);
  font-weight: 300;
  line-height: var(--leading-normal);
  opacity: 0.85;
}

.entry-body p + p {
  margin-block-start: var(--space-sm);
}

/* --- Divider decoration ------------------------------------------------- */
.rule {
  border: none;
  border-top: 1px solid rgba(200, 169, 110, 0.12);
  margin-block: var(--space-2xl);
}

/* --- Reduced motion ----------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  .article-card,
  .article-card:hover,
  .article-back,
  a {
    transition: none;
  }

  .article-card:hover {
    transform: none;
  }
}

/* --- Responsive adjustments --------------------------------------------- */
@media (max-width: 767px) {
  .nav-links {
    gap: var(--space-md);
  }

  .nav-links a {
    font-size: var(--text-xs);
  }

  .hero-title {
    font-size: clamp(2rem, 1.5rem + 5vw, 3.5rem);
  }

  .article-grid {
    --grid-min: 100%;
  }

  .section-header {
    flex-direction: column;
    gap: var(--space-2xs);
  }
}

@media (min-width: 1024px) {
  .article-grid {
    --grid-min: 22rem;
  }
}

/* ===== Tester fixes — CSS-only burger nav + 320px hardening (no JS) ===== */
.nav-toggle { position:absolute; width:1px; height:1px; opacity:0; pointer-events:none; }
.nav-burger {
  display:none; flex-direction:column; justify-content:center; gap:5px;
  width:2.75rem; height:2.75rem; margin-inline-start:auto;
  border-radius:var(--radius-sm); color:currentColor;
}
.nav-burger span { display:block; width:22px; height:2px; background:currentColor; border-radius:2px; transition:transform 200ms ease, opacity 160ms ease; }
.nav-toggle:focus-visible ~ .nav-burger { outline:2px solid currentColor; outline-offset:3px; }
@media (max-width:767px) {
  .site-header > .container { flex-wrap:wrap; }
  .nav-burger { display:inline-flex; }
  .site-nav { flex-basis:100%; width:100%; display:none; }
  .nav-toggle:checked ~ .site-nav { display:block; }
  .site-nav ul { flex-direction:column; align-items:flex-start; gap:var(--space-xs); padding-block:var(--space-xs) var(--space-2xs); }
  .nav-toggle:checked ~ .nav-burger span:nth-child(1){ transform:translateY(7px) rotate(45deg); }
  .nav-toggle:checked ~ .nav-burger span:nth-child(2){ opacity:0; }
  .nav-toggle:checked ~ .nav-burger span:nth-child(3){ transform:translateY(-7px) rotate(-45deg); }
}
@media (max-width:30rem) {
  :root {
    --text-4xl: clamp(1.85rem, 1.2rem + 4.5vw, 2.75rem);
    --text-3xl: clamp(1.55rem, 1.1rem + 3.2vw, 2.25rem);
    --text-2xl: clamp(1.35rem, 1rem + 2.2vw, 1.95rem);
  }
  h1, h2, h3 { hyphens:auto; -webkit-hyphens:auto; }
}