/* ─── Shared Variables ─── */
:root {
  --bg: #F9F5E9;
  --card: #FDFBF5;
  --text: #3B3228;
  --muted: #6B5D4D;
  --border: #D9CEB8;
  --accent: #2D5A3D;
  --accent-hover: #3D7A52;
  --accent-subtle: #E8F0E8;
  --success: #2D5A3D;
  --warm: #EDE5D3;
  --nav-bg: #5C4F3D;
}

/* ─── Base ─── */
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Source Sans 3', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
h1, h2, h3 {
  font-family: 'Newsreader', Georgia, serif;
  font-weight: 500;
}

/* ─── Animations ─── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}
@keyframes slideInLeft {
  from { opacity: 0; transform: translateX(-20px); }
  to { opacity: 1; transform: translateX(0); }
}
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}
.stagger-1 { transition-delay: 0.1s; }
.stagger-2 { transition-delay: 0.2s; }
.stagger-3 { transition-delay: 0.3s; }
.stagger-4 { transition-delay: 0.4s; }
.stagger-5 { transition-delay: 0.5s; }
.stagger-6 { transition-delay: 0.6s; }

/* ─── Nav ─── */
.nav-wrap {
  background: var(--nav-bg);
}
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 3rem;
  max-width: 1400px;
  margin: 0 auto;
  animation: fadeIn 0.8s ease-out;
}
.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: 'Newsreader', serif;
  font-size: 1.35rem;
  color: var(--card);
  text-decoration: none;
  letter-spacing: -0.02em;
  transition: opacity 0.2s;
}
.logo:hover { opacity: 0.7; }
.logo span { color: var(--card); font-weight: 500; }
.logo-icon {
  position: relative;
  width: 24px;
  height: 30px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}
.spine {
  display: flex;
  flex-direction: column;
  gap: 2px;
  width: 6px;
  height: 100%;
}
.spine-line { height: 4px; background: var(--accent-subtle); border-radius: 1px; }
.spine-band { height: 6px; background: var(--accent-subtle); margin-left: -2px; width: 10px; border-top: 2px solid var(--nav-bg); border-bottom: 2px solid var(--nav-bg); }
.pages { position: absolute; bottom: 0; left: 4px; width: 18px; height: 6px; background: var(--accent-subtle); border-bottom-right-radius: 2px; }
.nav-links {
  display: flex;
  gap: 2.5rem;
  align-items: center;
}
.nav-links a {
  color: var(--border);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
  position: relative;
}
.nav-links a.active { color: var(--card); }
.nav-links a:not(.btn)::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--card);
  transition: width 0.2s ease-out;
}
.nav-links a.active::after { width: 100%; }
.nav-links a:not(.btn):hover::after { width: 100%; }
.nav-links a:hover { color: var(--card); }

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0;
  background: none;
  color: var(--border);
  text-decoration: none;
  border: none;
  font-weight: 500;
  font-size: 0.9rem;
  transition: color 0.2s;
  cursor: pointer;
  position: relative;
  letter-spacing: 0.01em;
}
.btn:hover {
  color: var(--card);
}
.btn-arrow { display: inline-block; transition: transform 0.25s ease-out; }
.btn:hover .btn-arrow { transform: translateX(3px); }
.btn-dark {
  padding: 0.6rem 1.4rem;
  background: var(--nav-bg);
  color: var(--card);
  border: 2px solid var(--nav-bg);
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.875rem;
}
.btn-dark:hover {
  background: var(--text);
  border-color: var(--text);
  color: var(--card);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(59, 50, 40, 0.2);
}
.btn-dark:active { transform: translateY(0); box-shadow: none; }
.btn-ghost {
  padding: 0.6rem 1.4rem;
  background: transparent;
  color: var(--muted);
  border: 1.5px solid var(--border);
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.875rem;
}
.btn-ghost:hover {
  background: var(--card);
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 2px 12px rgba(45, 90, 61, 0.08);
}
.btn-ghost:active { transform: translateY(0); box-shadow: none; }
.brand-label {
  font-family: 'Newsreader', serif;
  color: var(--accent);
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: lowercase;
  font-weight: 500;
}

/* ─── Footer ─── */
.footer-wrap {
  background: var(--nav-bg);
}
footer {
  padding: 2.5rem 3rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1400px;
  margin: 0 auto;
}
.footer-left {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.copyright {
  font-size: 0.8rem;
  color: var(--border);
}
.footer-links {
  display: flex;
  gap: 2rem;
}
footer a {
  color: var(--border);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color 0.2s;
}
footer a:hover { color: var(--card); }

/* ─── Responsive (shared) ─── */
@media (max-width: 640px) {
  nav { padding: 1rem 1.5rem; }
  .nav-links a:not(.btn) { display: none; }
  footer { flex-direction: column; gap: 1.5rem; }
}