:root {
  --ink: #2b2118;
  --ink-soft: #4d3f2f;
  --paper-1: #f5ecd5;
  --paper-2: #e8d6b4;
  --paper-3: #d8c29a;
  --seal: #7f3428;
  --focus: #0b62a2;
  --shadow: rgba(34, 22, 12, 0.22);
  --edge: rgba(83, 57, 35, 0.35);
  --canvas: #ded2b4;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  color: var(--ink);
  font-family: "Palatino Linotype", "Book Antiqua", Palatino, Georgia, serif;
  background:
    radial-gradient(circle at 15% 12%, rgba(255, 245, 220, 0.7), transparent 32%),
    radial-gradient(circle at 88% 18%, rgba(176, 112, 58, 0.18), transparent 31%),
    radial-gradient(circle at 78% 80%, rgba(144, 86, 51, 0.2), transparent 36%),
    linear-gradient(125deg, #dfd0ad 0%, #d5c39f 40%, #cdb48f 100%);
  line-height: 1.6;
}

.skip-link {
  position: absolute;
  top: -40px;
  left: 12px;
  padding: 8px 12px;
  color: #fff;
  background: #000;
  z-index: 1000;
}

.skip-link:focus {
  top: 12px;
}

.site-shell {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
}

.site-header {
  border-bottom: 2px solid var(--edge);
  padding: 20px 16px 12px;
  background: linear-gradient(180deg, rgba(246, 236, 214, 0.94), rgba(232, 214, 180, 0.9));
}

.site-title {
  margin: 0;
  font-family: "American Typewriter", "Courier New", Courier, monospace;
  letter-spacing: 0.08em;
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  text-transform: uppercase;
}

.site-subtitle {
  margin: 6px 0 0;
  color: var(--ink-soft);
  font-size: 0.95rem;
}

.site-nav {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.site-nav a {
  color: var(--ink);
  text-decoration: none;
  border: 1px solid rgba(79, 51, 31, 0.45);
  border-radius: 999px;
  padding: 6px 12px;
  background: rgba(255, 250, 238, 0.66);
  font-family: "American Typewriter", "Courier New", Courier, monospace;
  font-size: 0.9rem;
}

.site-nav a:hover {
  background: rgba(244, 232, 202, 0.95);
}

.site-nav a:focus-visible,
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.site-main {
  width: min(100%, 1020px);
  margin: 0 auto;
  padding: 20px 16px 36px;
}

.section-title {
  margin: 0 0 14px;
  font-size: clamp(1.3rem, 2.6vw, 2rem);
}

.section-intro {
  margin: 0 0 18px;
  color: var(--ink-soft);
}

.post-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.post-list-item {
  background: linear-gradient(165deg, rgba(245, 236, 213, 0.92), rgba(226, 205, 168, 0.9));
  border: 1px solid rgba(86, 57, 34, 0.44);
  box-shadow: 0 8px 18px var(--shadow);
  border-radius: 8px;
  padding: 14px;
}

.post-list-item h3 {
  margin: 0 0 7px;
}

.post-list-item a {
  color: var(--ink);
  text-decoration-thickness: 2px;
}

.post-meta {
  margin: 0;
  font-size: 0.92rem;
  color: var(--ink-soft);
}

.post-summary {
  margin: 8px 0 0;
}

.empty-state {
  border: 2px dashed rgba(72, 48, 31, 0.35);
  background: rgba(248, 241, 224, 0.8);
  padding: 16px;
}

.letter-card {
  position: relative;
  background:
    radial-gradient(circle at 14% 14%, rgba(255, 254, 250, 0.54), transparent 34%),
    radial-gradient(circle at 85% 86%, rgba(170, 96, 63, 0.18), transparent 28%),
    linear-gradient(170deg, var(--paper-1), var(--paper-2) 70%, var(--paper-3));
  border: 1px solid rgba(103, 70, 44, 0.56);
  box-shadow: 0 18px 28px var(--shadow);
  border-radius: 14px;
  padding: clamp(18px, 2.8vw, 34px);
}

.letter-card::before,
.letter-card::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.letter-card::before {
  border-radius: 14px;
  box-shadow: inset 0 0 42px rgba(112, 77, 47, 0.22);
}

.letter-card::after {
  border-radius: 14px;
  border: 2px solid rgba(255, 245, 222, 0.35);
}

.letter-headline {
  margin: 0 0 8px;
  font-size: clamp(1.45rem, 3vw, 2.2rem);
  line-height: 1.2;
}

.letter-details {
  margin: 0 0 14px;
  color: var(--ink-soft);
  font-family: "American Typewriter", "Courier New", Courier, monospace;
  font-size: 0.92rem;
}

.letter-body {
  font-size: clamp(1rem, 1.4vw, 1.08rem);
}

.letter-body p:first-child::first-letter {
  font-size: 2.2em;
  float: left;
  line-height: 0.9;
  margin-right: 6px;
  color: var(--seal);
}

.letter-tags {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.letter-tag {
  display: inline-block;
  border: 1px solid rgba(79, 51, 31, 0.42);
  border-radius: 999px;
  background: rgba(241, 226, 191, 0.78);
  padding: 4px 10px;
  font-size: 0.84rem;
}

.letter-signature {
  margin-top: 18px;
  border-top: 1px dashed rgba(77, 52, 33, 0.4);
  padding-top: 12px;
}

.letter-signature img {
  max-width: 220px;
  width: 100%;
  height: auto;
  display: block;
  filter: drop-shadow(0 4px 6px rgba(67, 35, 18, 0.25));
}

.letter-signature-caption {
  margin: 0 0 8px;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.site-footer {
  border-top: 1px solid rgba(81, 56, 36, 0.34);
  background: rgba(225, 205, 167, 0.88);
  padding: 14px 16px;
  color: var(--ink-soft);
  font-size: 0.92rem;
}

@media (max-width: 720px) {
  .site-main {
    padding: 16px 12px 24px;
  }

  .post-list-item {
    padding: 12px;
  }

  .letter-card {
    border-radius: 10px;
    padding: 16px;
  }
}