:root {
  --color-bg: #f6f6f6;
  --color-text: #9e7c83;
  --color-muted: #6b7280;
  --color-border: #f6f6f6;
  --color-accent: #d5ada2;
  --color-nav-bg: #e6d9d2;
}

[data-theme="dark"] {
  --color-bg: #130e0f;
  --color-text: #c9cfd5;
  --color-muted: #9e8e79;
  --color-border: #4d5867;
  --color-accent: #9f5a36;
  --color-nav-bg: #374656;
}

@font-face {
  font-family: "PoiretOne";
  src: url("../fonts/Poiret_One/PoiretOne-Regular.ttf") format("truetype");
  font-weight: normal;
  font-style: normal;
}

* { box-sizing: border-box; }
html, body {
  margin: 0;
  padding: 0;
  height: 100%;
}
body {
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell,
    Noto Sans, Helvetica Neue, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  display: flex;
  flex-direction: column;
}

.site-header {
  background: var(--color-nav-bg);
  border-bottom: 1px solid var(--color-border);
  font-family: "PoiretOne";
}

.navbar {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 16px;
}

.brand {
  font-weight: 800;
  font-size: 1.6rem;
  color: var(--color-text);
  text-decoration: none;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 12px;
  margin: 0;
  padding: 0;
}
.nav-links a {
  color: var(--color-text);
  text-decoration: none;
  padding: 6px 10px;
  border-radius: 6px;
}
.nav-links a[aria-current="page"] {
  background: color-mix(in oklab, var(--color-accent) 18%, transparent);
}
.nav-links a:hover {
  background: color-mix(in oklab, var(--color-accent) 12%, transparent);
}

.hamburger {
  display: none;
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  border-radius: 8px;
  padding: 6px 10px;
  cursor: pointer;
}

.theme-toggle {
  background: transparent;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  border-radius: 999px;
  padding: 6px 10px;
  cursor: pointer;
}

.container {
  max-width: 960px;
  margin: 24px auto;
  padding: 0 16px;
  width: 100%;
}

.site-footer {
  margin-top: auto;
  border-top: 1px solid var(--color-border);
  background: var(--color-nav-bg);
}
.site-footer small {
  display: block;
  max-width: 960px;
  margin: 0 auto;
  padding: 12px 16px;
  color: var(--color-muted);
}

/* Drawer styles */
.drawer {
  position: fixed;
  top: 0;
  left: 0;
  height: 100dvh;
  width: 260px;
  background: var(--color-nav-bg);
  border-right: 1px solid var(--color-border);
  transform: translateX(-100%);
  transition: transform 200ms ease;
  padding: 16px 16px 16px 48px; /* leave space for close button */
  z-index: 50;
  font-family: "PoiretOne";
}
.drawer-close {
  position: absolute;
  left: 12px;
  top: 12px;
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text);
  cursor: pointer;
}
.drawer nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 15px;
}
.drawer a {
  color: var(--color-text);
  text-decoration: none;
  padding: 8px 10px;
  border-radius: 6px;
}
.drawer a[aria-current="page"], .drawer a:hover {
  background: color-mix(in oklab, var(--color-accent) 14%, transparent);
}

.backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.4);
  opacity: 0;
  transition: opacity 200ms ease;
  pointer-events: none;
  z-index: 40;
}

[data-drawer="open"] .drawer {
  transform: translateX(0);
}
[data-drawer="open"] .backdrop {
  opacity: 1;
  pointer-events: auto;
}
[data-drawer="open"] body {
  overflow: hidden;
}

/* Responsive behavior */
@media (max-width: 720px) {
  .nav-links { display: none; }
  .hamburger { display: inline-flex; }
}


.brand {
  font-size: 24px; /* Adjust font size as needed */
  text-decoration: none; /* Remove underline */
  position: relative;
  display: inline-block;
}
.dot-o {
  position: relative;
  display: inline-block;
}
.dot-o::after {
  content: '•'; /* Dot character */
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-44%, -52%); /* Center the dot */
  font-size: 0.7em; /* Adjust dot size */
}

/* About page styles */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  max-width: 600px;
  margin: 0 auto;
}

.about-block {
  background: var(--color-nav-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 24px;
  text-decoration: none;
  color: var(--color-text);
  transition: all 0.3s ease;
}

.about-block:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.about-block h2 {
  margin: 0 0 12px 0;
  font-family: "PoiretOne";
  font-size: 1.4rem;
  color: var(--color-accent);
}

.about-block p {
  margin: 0;
  line-height: 1.6;
}

.about-link:hover {
  background: color-mix(in oklab, var(--color-accent) 8%, var(--color-nav-bg));
}

/* Library page styles */
.filter-container {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin: 32px 0;
  flex-wrap: wrap;
}

.filter-option {
  background: var(--color-nav-bg);
  color: var(--color-text);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 8px 16px;
  cursor: pointer;
  font-family: "PoiretOne";
  font-size: 1rem;
  transition: all 0.3s ease;
}

.filter-option:hover,
.filter-option.active {
  background: var(--color-accent);
  color: var(--color-bg);
}

.book-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
  margin-top: 32px;
}

.book-container {
  position: relative;
  background: var(--color-nav-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  overflow: hidden;
  transition: transform 0.3s ease;
}

.book-container:hover {
  transform: translateY(-4px);
}

.book-cover {
  width: 100%;
  height: 400px;
  object-fit: cover;
  display: block;
}

.book-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(0, 0, 0, 0.8);
  color: white;
  padding: 20px;
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.book-container:hover .book-overlay {
  transform: translateY(0);
}

.book-overlay p {
  margin: 0 0 16px 0;
  line-height: 1.5;
  font-size: 0.9rem;
}

.buy-link {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-bg);
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 4px;
  font-weight: bold;
  transition: background 0.3s ease;
}

.buy-link:hover {
  background: color-mix(in oklab, var(--color-accent) 80%, black);
}

/* Letters page styles */
.letters-intro {
  text-align: center;
  font-size: 1.1rem;
  margin-bottom: 40px;
  color: var(--color-muted);
}

.letters-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 24px;
  margin-bottom: 40px;
}

.letter-preview {
  background: var(--color-nav-bg);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 24px;
  transition: all 0.3s ease;
}

.letter-preview:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.letter-preview h2 {
  margin: 0 0 12px 0;
  font-family: "PoiretOne";
  font-size: 1.3rem;
  color: var(--color-accent);
}

.letter-excerpt {
  margin: 0 0 16px 0;
  line-height: 1.6;
  color: var(--color-text);
}

.letter-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
  color: var(--color-muted);
}

.letter-status {
  background: var(--color-accent);
  color: var(--color-bg);
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: bold;
}

.letters-footer {
  text-align: center;
  margin-top: 40px;
  padding-top: 40px;
  border-top: 1px solid var(--color-border);
}

.small-text {
  font-size: 0.9rem;
  color: var(--color-muted);
  margin-top: 8px;
}

.go-back-container {
  text-align: center;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
}

.go-back-button {
  display: inline-block;
  background: var(--color-nav-bg);
  color: var(--color-text);
  text-decoration: none;
  padding: 12px 24px;
  border-radius: 8px;
  border: 1px solid var(--color-border);
  font-weight: 500;
  transition: all 0.3s ease;
}

.go-back-button:hover {
  background: var(--color-accent);
  color: var(--color-bg);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

/* Letter page styles */
.letter-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
}

.letter-header {
  text-align: center;
  margin-bottom: 40px;
  padding-bottom: 30px;
  border-bottom: 2px solid var(--color-accent);
}

.letter-header h1 {
  font-family: "PoiretOne";
  font-size: 2.5rem;
  color: var(--color-accent);
  margin: 0 0 20px 0;
  line-height: 1.2;
}

.letter-meta {
  display: flex;
  justify-content: center;
  gap: 30px;
  font-size: 1.1rem;
  color: var(--color-muted);
}

.letter-body {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--color-text);
}

.letter-body p {
  margin: 0 0 24px 0;
  text-align: justify;
  text-indent: 0;
}

.letter-quote {
  font-size: 1.3rem;
  font-style: italic;
  color: var(--color-accent);
  text-align: center;
  margin: 0 0 40px 0;
  padding: 20px;
  border-left: 4px solid var(--color-accent);
  background: color-mix(in oklab, var(--color-accent) 8%, transparent);
  border-radius: 0 8px 8px 0;
}

.letter-separator {
  text-align: center;
  font-size: 1.5rem;
  color: var(--color-muted);
  margin: 40px 0;
  font-weight: bold;
}

.letter-footer {
  margin-top: 50px;
  padding-top: 30px;
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.letter-signature {
  font-family: "PoiretOne";
  font-size: 1.4rem;
  color: var(--color-accent);
  margin: 0 0 10px 0;
}

.letter-location {
  font-size: 1rem;
  color: var(--color-muted);
  margin: 0;
  font-style: italic;
}

.letter-navigation {
  text-align: center;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
}

.read-letter-btn {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-bg);
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 4px;
  font-weight: bold;
  font-size: 0.9rem;
  margin-top: 16px;
  transition: all 0.3s ease;
}

.read-letter-btn:hover {
  background: color-mix(in oklab, var(--color-accent) 80%, black);
  transform: translateY(-1px);
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .book-grid {
    grid-template-columns: 1fr;
  }
  
  .letters-grid {
    grid-template-columns: 1fr;
  }
  
  .filter-container {
    flex-direction: column;
    align-items: center;
  }
}