/* 
 * Showa Design Style (昭和レトロ) for Hugo
 * Minimalist, Content-First Personal Blog Theme
 */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500&family=Noto+Serif+JP:wght@400;600;700&family=Shippori+Mincho:wght@400;600;700;800&family=Zen+Old+Mincho:wght@400;700&display=swap');

:root {
  /* Authentic Showa Warm Parchment Paper Palette */
  --showa-bg: #faf6ed;
  --showa-card-bg: #fffdf7;
  --showa-text: #23282d;
  --showa-muted: #666c72;
  --showa-vermilion: #c8392b;
  --showa-hanko-red: #d32f2f;
  --showa-indigo: #1b365d;
  --showa-mustard: #c8963e;
  --showa-border: #33383f;
  --showa-light-border: #e3dac9;
  --showa-shadow: 3px 3px 0px #33383f;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--showa-bg) !important;
  background-image: radial-gradient(var(--showa-light-border) 0.75px, transparent 0.75px);
  background-size: 16px 16px;
  color: var(--showa-text) !important;
  font-family: 'Noto Serif JP', Georgia, serif;
  font-size: 1.05rem;
  line-height: 1.8;
}

.container {
  max-width: 760px;
  margin: 0 auto;
  padding: 2rem 1.2rem;
}

/* Header & Navbar */
header.site-header {
  border-bottom: 3px double var(--showa-border);
  padding-bottom: 1rem;
  margin-bottom: 2.5rem;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.site-title {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--showa-text);
}

.site-title h1 {
  font-family: 'Shippori Mincho', serif;
  font-weight: 800;
  font-size: 1.4rem;
  margin: 0;
  border: none;
  padding: 0;
}

.hanko-logo {
  width: 32px;
  height: 32px;
}

nav.site-nav {
  display: flex;
  gap: 1.2rem;
  font-family: 'Shippori Mincho', serif;
  font-weight: 600;
  font-size: 1.05rem;
}

nav.site-nav a {
  color: var(--showa-text);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
  transition: all 0.15s ease;
}

nav.site-nav a:hover, nav.site-nav a.active {
  color: var(--showa-vermilion);
  border-bottom-color: var(--showa-vermilion);
}

/* Typography */
h1, h2, h3, h4 {
  font-family: 'Shippori Mincho', 'Zen Old Mincho', serif;
  color: var(--showa-text);
  line-height: 1.4;
}

h1 {
  font-size: 1.8rem;
  border-bottom: 2px dashed var(--showa-mustard);
  padding-bottom: 0.4rem;
  margin-top: 0;
}

h2 {
  font-size: 1.4rem;
  position: relative;
  padding-left: 0.8rem;
  margin-top: 2rem;
}

h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 15%;
  bottom: 15%;
  width: 4px;
  background-color: var(--showa-vermilion);
  border-radius: 2px;
}

a {
  color: var(--showa-indigo);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--showa-vermilion);
  text-decoration: underline;
}

/* Homepage & Post Listing */
.post-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.post-item {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.85rem 0;
  border-bottom: 1px dashed var(--showa-light-border);
}

.post-item:last-child {
  border-bottom: none;
}

.post-title {
  font-family: 'Shippori Mincho', serif;
  font-weight: 700;
  font-size: 1.15rem;
  margin: 0;
}

.post-title a {
  color: var(--showa-text);
}

.post-title a:hover {
  color: var(--showa-vermilion);
}

.post-date {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9rem;
  color: var(--showa-muted);
  white-space: nowrap;
}

.tag-badge {
  display: inline-block;
  font-family: 'Shippori Mincho', serif;
  font-size: 0.8rem;
  padding: 0.1rem 0.5rem;
  border: 1px solid var(--showa-border);
  border-radius: 2px;
  background-color: var(--showa-card-bg);
  color: var(--showa-text);
  margin-left: 0.5rem;
  box-shadow: 1px 1px 0px var(--showa-border);
}

.tag-badge:hover {
  background-color: var(--showa-vermilion);
  color: #fff;
  text-decoration: none;
}

/* Murmur Feed Page */
.murmur-stream {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.murmur-card {
  background-color: var(--showa-card-bg);
  border: 2px solid var(--showa-border);
  border-left: 5px solid var(--showa-vermilion);
  box-shadow: var(--showa-shadow);
  padding: 1.2rem 1.4rem;
  border-radius: 3px;
}

.murmur-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.6rem;
}

.murmur-date {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85rem;
  color: var(--showa-muted);
  font-weight: 500;
}

.murmur-content {
  margin: 0;
  font-size: 1.05rem;
  line-height: 1.7;
}

/* Single Article Styling */
article.post-single {
  background-color: var(--showa-card-bg);
  border: 2px solid var(--showa-border);
  box-shadow: var(--showa-shadow);
  padding: 2rem;
  border-radius: 4px;
}

.post-meta {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9rem;
  color: var(--showa-muted);
  margin-bottom: 1.5rem;
  border-bottom: 1px dashed var(--showa-light-border);
  padding-bottom: 0.8rem;
}

/* Code & Pre */
pre {
  background-color: #1e2227;
  color: #abb2bf;
  padding: 1rem;
  border-radius: 4px;
  overflow-x: auto;
  border: 1px solid var(--showa-border);
}

code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9em;
}

p code {
  background-color: rgba(200, 57, 43, 0.1);
  color: var(--showa-vermilion);
  padding: 0.15rem 0.35rem;
  border-radius: 3px;
}

blockquote {
  border-left: 4px solid var(--showa-mustard);
  background-color: rgba(200, 150, 62, 0.08);
  padding: 0.8rem 1.2rem;
  margin: 1.5rem 0;
  font-style: italic;
}

/* Footer */
footer.site-footer {
  border-top: 3px double var(--showa-border);
  margin-top: 4rem;
  padding-top: 1.5rem;
  text-align: center;
  font-family: 'Shippori Mincho', serif;
  font-size: 0.9rem;
  color: var(--showa-muted);
}