/* GIFT Framework — GitHub Pages
   Aesthetic: Galerie Cadran Solaire warmth, olive & cream
   ------------------------------------------------------- */

:root {
  /* Palette — olive/cream/warm */
  --bg-page:      #fffff5;
  --bg-surface:   #e3e1dc;
  --bg-card:      #fffff5;
  --bg-card-hover:#f5f3ed;
  --accent:       #515830;
  --accent-light: #6b7340;
  --accent-muted: #999a95;
  --text:         #333330;
  --text-muted:   #656560;
  --text-dim:     #999a95;
  --border:       #d5d3cd;
  --border-light: #c8c5be;

  /* Typography */
  --font-heading: 'Playfair Display', 'Georgia', 'Times New Roman', serif;
  --font-body:    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono:    'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
}

/* ---- Reset & Base ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background: var(--bg-page);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s ease;
}
a:hover { color: var(--accent-light); }

img { max-width: 100%; height: auto; }

/* ---- Layout ---- */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ---- Navigation ---- */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border);
}

nav .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

.nav-brand {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.02em;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

/* Language toggle (EN · FR) */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-left: auto;
  margin-right: 1.25rem;
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.lang-toggle a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  padding: 0.1rem 0.15rem;
}
.lang-toggle a.active {
  color: var(--accent);
  font-weight: 700;
  border-bottom: 2px solid var(--accent);
}
.lang-toggle a:not(.active):hover {
  color: var(--accent);
}
.lang-toggle span {
  color: var(--text-muted);
  opacity: 0.5;
}

/* Hamburger button — hidden on desktop, shown on mobile via @media */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  width: 36px;
  height: 36px;
  padding: 0;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 4px;
  cursor: pointer;
  gap: 5px;
}
.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--accent);
  margin: 0 auto;
  transition: transform 0.2s, opacity 0.2s;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-links a {
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.nav-links a:hover {
  color: var(--accent);
  border-bottom: 2px solid var(--accent);
  padding-bottom: 2px;
}

/* ---- Hero ---- */
.hero {
  padding: 5rem 0 4rem;
  text-align: center;
  border-bottom: 1px solid var(--border);
  background: var(--bg-surface);
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}

.hero .subtitle {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-style: italic;
  color: var(--text-muted);
  margin-bottom: 1.75rem;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.hero .tagline {
  font-size: 0.95rem;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 2rem;
  line-height: 1.8;
}

.btn-group {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 1.5rem;
}

/* ---- Sections ---- */
section {
  padding: 3.5rem 0;
  border-bottom: 1px solid var(--border);
}

section:last-of-type {
  border-bottom: none;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.section-intro {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin-bottom: 2rem;
  max-width: 600px;
}

/* ---- Separator ---- */
.sep {
  width: 40px;
  height: 2px;
  background: var(--accent-muted);
  margin: 0.75rem 0 1.5rem;
}

/* ---- Cards Grid ---- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.5rem;
  transition: border-color 0.2s ease, transform 0.15s ease;
}

.card:hover {
  border-color: var(--accent-muted);
  transform: translateY(-2px);
}

.card h3 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.card p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.card .card-meta {
  font-size: 0.75rem;
  color: var(--accent-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 0.75rem;
}

.card a.card-link {
  display: block;
  color: inherit;
  text-decoration: none;
}
.card a.card-link:hover { color: inherit; }

/* ---- Blog Cards ---- */
.blog-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.25rem;
}

.blog-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.35rem 1.35rem 1.15rem;
  transition: border-color 0.2s ease, transform 0.15s ease;
}

.blog-card:hover {
  border-color: var(--accent-muted);
  transform: translateY(-2px);
}

.blog-card h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  color: var(--text);
  margin-bottom: 0.35rem;
}

.blog-card p {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.55;
}

.blog-card .date {
  font-size: 0.7rem;
  color: var(--accent-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 0.5rem;
}

/* ---- Results Table ---- */
.results-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  margin-top: 1rem;
}

.results-table th {
  text-align: left;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-muted);
  padding: 0.6rem 1rem;
  border-bottom: 2px solid var(--border);
}

.results-table td {
  padding: 0.55rem 1rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
}

.results-table tr:hover td {
  background: var(--bg-surface);
}

.results-table .value {
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: 0.82rem;
}

.results-table .exact {
  color: var(--accent);
  font-weight: 600;
}

/* ---- Audience Section ---- */
.audience-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}

.audience-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1.25rem;
  text-align: center;
  transition: border-color 0.2s ease, transform 0.15s ease;
}

.audience-card:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}

.audience-card .audience-label {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-muted);
  margin-bottom: 0.5rem;
}

.audience-card h3 {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  color: var(--accent);
  margin-bottom: 0.35rem;
}

.audience-card p {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ---- Buttons ---- */
.btn {
  display: inline-block;
  padding: 0.55rem 1.3rem;
  border: 1px solid var(--accent);
  border-radius: 3px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  transition: all 0.2s ease;
}

.btn:hover {
  background: var(--accent);
  color: var(--bg-page);
}

.btn--primary {
  background: var(--accent);
  color: var(--bg-page);
}

.btn--primary:hover {
  background: var(--accent-light);
  color: var(--bg-page);
}

/* ---- Quote ---- */
blockquote {
  border-left: 3px solid var(--accent-muted);
  padding: 0.75rem 1.25rem;
  margin: 2rem 0;
  color: var(--text-muted);
  font-style: italic;
  font-family: var(--font-heading);
  font-size: 1.02rem;
}

/* ---- Footer ---- */
footer {
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  padding: 3rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-about p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.7;
  max-width: 360px;
}

.footer-col h4 {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent-muted);
  margin-bottom: 0.75rem;
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 0.4rem;
}

.footer-col a {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-col a:hover {
  color: var(--accent);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.78rem;
  color: var(--accent-muted);
}

.footer-bottom .gift-from-bit {
  font-family: var(--font-heading);
  font-style: italic;
  color: var(--text-muted);
}

/* ---- Prose (markdown pages) ---- */
.prose {
  padding: 3rem 0 4rem;
  min-height: 60vh;
}

.prose h1 {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.prose h2 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent);
  margin-top: 2.5rem;
  margin-bottom: 0.5rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid var(--border);
}

.prose h3 {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  margin-top: 2rem;
  margin-bottom: 0.4rem;
}

.prose h4 {
  font-family: var(--font-heading);
  font-size: 1rem;
  color: var(--text);
  margin-top: 1.5rem;
  margin-bottom: 0.3rem;
}

.prose p {
  margin-bottom: 1rem;
  color: var(--text);
  max-width: 720px;
}

.prose ul, .prose ol {
  margin-bottom: 1rem;
  padding-left: 1.5rem;
  color: var(--text);
  max-width: 720px;
}

.prose li {
  margin-bottom: 0.3rem;
}

.prose strong {
  color: var(--accent);
  font-weight: 600;
}

.prose em {
  font-style: italic;
}

.prose a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-color: var(--border);
}

.prose a:hover {
  text-decoration-color: var(--accent);
}

.prose code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background: var(--bg-surface);
  padding: 0.15em 0.4em;
  border-radius: 3px;
  color: var(--accent);
}

.prose pre {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem 1.25rem;
  overflow-x: auto;
  margin-bottom: 1.25rem;
  max-width: 100%;
}

.prose pre code {
  background: none;
  padding: 0;
  font-size: 0.82rem;
  color: var(--text);
}

.prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  margin-bottom: 1.5rem;
}

.prose th {
  text-align: left;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent-muted);
  padding: 0.6rem 0.75rem;
  border-bottom: 2px solid var(--border);
}

.prose td {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
}

.prose tr:hover td {
  background: var(--bg-surface);
}

.prose blockquote {
  border-left: 3px solid var(--accent-muted);
  padding: 0.5rem 1.25rem;
  margin: 1.5rem 0;
  color: var(--text-muted);
  font-style: italic;
  max-width: 720px;
}

.prose hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.5rem 0;
}

.prose img {
  border-radius: 6px;
  border: 1px solid var(--border);
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .hero h1 { font-size: 2rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .cards, .blog-cards { grid-template-columns: 1fr; }
  .audience-grid { grid-template-columns: 1fr 1fr; }

  /* Show hamburger, hide nav links by default */
  .nav-toggle { display: flex; }
  .nav-links {
    display: none;
    position: absolute;
    top: 56px;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    padding: 0.5rem 0;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
  }
  .nav-links.open { display: flex; }
  .nav-links li {
    padding: 0.75rem 1.5rem;
    border-bottom: 1px solid var(--border);
  }
  .nav-links li:last-child { border-bottom: none; }
  .nav-links a {
    font-size: 0.85rem;
    display: block;
    width: 100%;
  }
  .nav-links a:hover {
    border-bottom: none;
  }
}

@media (max-width: 480px) {
  .container { padding: 0 1.25rem; }
  .hero { padding: 3rem 0 2.5rem; }
  .hero h1 { font-size: 1.7rem; }
  .audience-grid { grid-template-columns: 1fr; }
  .btn-group { flex-direction: column; align-items: center; }
  .footer-bottom { flex-direction: column; gap: 0.5rem; text-align: center; }
}