/* ==========================================================================
   Media UI & Liquid Glass Effects
   ========================================================================== */

/* ── Ambient Fluid Background ── */
.ambient-bg {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
  overflow: hidden;
  background: var(--color-bg-base);
}

.ambient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(140px);
  will-change: transform;
}

.ambient-orb--mint {
  width: 70vw;
  height: 70vw;
  background: var(--color-mint-pale);
  top: -10vh;
  right: -10vw;
  animation: floatMint 24s ease-in-out infinite alternate;
}

.ambient-orb--citrus {
  width: 50vw;
  height: 50vw;
  background: rgba(249, 237, 210, 0.2);
  bottom: -15vh;
  left: -5vw;
  animation: floatCitrus 28s ease-in-out infinite alternate;
}

@keyframes floatMint {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-5vw, 15vh) scale(1.1); }
}

@keyframes floatCitrus {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(10vw, -10vh) scale(1.2); }
}

/* ── Sticky Glass Header ── */
.site-header-wrapper {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: var(--space-sm) var(--space-md);
}

.site-header {
  max-width: 68rem;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 1.2rem;
  
  background: var(--color-glass-pane);
  backdrop-filter: blur(30px) saturate(150%);
  -webkit-backdrop-filter: blur(30px) saturate(150%);
  border: 1px solid var(--border-glass);
  border-radius: 999px;
  box-shadow: 0 4px 12px rgba(17, 24, 22, 0.03);
  transition: background 0.3s ease;
}

.site-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.site-brand-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  /* Elegant Gold Gradient */
  background: linear-gradient(135deg, #FFFDF8 0%, #D4BB7D 50%, #B89A53 100%);
  border: 1px solid rgba(255,255,255,0.9);
  box-shadow: inset 0 2px 3px rgba(255,255,255,0.8), 0 2px 6px rgba(184, 154, 83, 0.3);
}

.site-brand-text {
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: 0.03em;
  color: var(--color-text-main);
  line-height: 1;
}

.site-header-nav a {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-text-muted);
  padding: 0.4rem 0.8rem;
  border-radius: 999px;
  transition: all 0.2s ease;
}

.site-header-nav a:hover {
  background: var(--color-mint-pale);
  color: var(--color-mint-dark);
}

/* ── Generic Containers ── */
main {
  margin-top: 1rem;
  padding: 0 var(--space-md) var(--space-xl);
}

.container-article {
  max-width: var(--max-width-article);
  margin: 0 auto;
}

/* ==========================================================================
   Top Page (Editorial Front Page)
   ========================================================================== */

.front-page-container {
  max-width: var(--max-width-article);
  margin: 0 auto;
}

.front-intro {
  text-align: center;
  padding: var(--space-xl) 0 var(--space-2xl);
  border-bottom: 2px solid var(--color-text-main); /* Thick newspaper separator */
  margin-bottom: var(--space-xl);
}

.front-brand {
  margin-bottom: 1.5rem;
}

.front-kicker {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
}
.front-kicker::before, .front-kicker::after {
  content: "";
  display: block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--color-gold);
}

.front-title {
  font-size: 3rem;
  font-family: var(--font-serif);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: 0.02em;
}

.front-desc {
  font-size: 1.05rem;
  line-height: 1.8;
  color: var(--color-text-muted);
  max-width: 34rem;
  margin: 0 auto;
}

/* ── Latest Record (Front Page Headline) ── */
.front-latest {
  margin-bottom: var(--space-xl);
}

.latest-record {
  display: block;
  padding: 0;
  transition: opacity 0.2s ease;
  position: relative;
}

.latest-record:hover {
  opacity: 0.8;
}

.latest-badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.8rem;
  background: var(--color-gold-light);
  border-radius: 999px;
  color: var(--color-gold);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  margin-bottom: 1.2rem;
  border: 1px solid rgba(184, 154, 83, 0.2);
}

.latest-date {
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--color-text-main);
  margin-bottom: 1.5rem;
  display: block;
}

.latest-summary {
  font-size: 1.15rem;
  line-height: 1.9;
  color: var(--color-text-main);
  display: block;
}

.latest-peek {
  margin-top: 1.5rem;
  padding-left: 1rem;
  border-left: 2px solid var(--color-mint-dark);
}

.latest-peek-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-text-light);
  margin-bottom: 0.4rem;
}

.latest-peek-list {
  list-style: none;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.latest-peek-item {
  position: relative;
  padding-left: 0.8rem;
}

.latest-peek-item::before {
  content: "・";
  position: absolute;
  left: -0.2rem;
  color: var(--color-gold); /* Gold dot for topics */
}

.latest-counts {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  padding-top: 1rem;
  border-top: 1px solid var(--border-hairline);
}

.latest-count-pill {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  font-weight: 500;
  padding: 0.2rem 0;
  margin-right: 1rem;
}

/* ── Archives List (Editorial Timeline) ── */
.archive-group {
  margin-top: 5rem;
}

.archive-header {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-hairline);
  padding-bottom: 0.5rem;
}

.archive-list {
  display: flex;
  flex-direction: column;
}

.archive-card {
  display: flex;
  align-items: baseline;
  gap: 2rem;
  padding: 1.2rem 2rem 1.2rem 0; /* padding for the arrow */
  border-bottom: 1px solid var(--border-hairline);
  transition: opacity 0.2s ease, transform 0.2s ease;
  position: relative;
}

.archive-card-arrow {
  position: absolute;
  right: 0;
  top: 1.2rem;
  color: var(--color-gold);
  opacity: 0.4;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.archive-card:hover {
  opacity: 0.8;
}

.archive-card:hover .archive-card-arrow {
  opacity: 1;
  transform: translateX(4px);
}

.archive-card-date {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text-main);
  min-width: 10rem;
}

.archive-card-sum {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   Article Page (Daily Reading View)
   ========================================================================== */

/* ── Date Page Header ── */
.daily-intro {
  padding: var(--space-xl) 0 var(--space-md);
}

.daily-date {
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  text-align: center;
}

.daily-meta {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1rem;
}
.daily-meta-pill {
  font-size: 0.7rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.daily-meta-pill:not(:last-child)::after {
  content: "・";
  margin-left: 0.5rem;
  opacity: 0.5;
}

/* ── Focus Pane (Editorial Lead) ── */
.focus-pane {
  padding: 0 0 3rem 0;
  margin-bottom: var(--space-2xl);
  border-bottom: 1px solid var(--color-text-main);
}

.focus-summary {
  font-size: 1.2rem;
  line-height: 1.9;
  color: var(--color-text-main);
  font-weight: 500;
}

.focus-mood {
  margin-top: 1.5rem;
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.focus-mood-icon {
  font-size: 1.2rem;
  opacity: 0.6;
}

.focus-mood-text {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--color-text-muted);
  font-family: var(--font-serif);
  font-style: italic;
}

/* ── Article Sections ── */
.daily-section {
  margin-bottom: var(--space-2xl);
}

.section-header {
  margin-bottom: 1.5rem;
}

.section-title {
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-text-main);
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.section-count {
  font-size: 0.75rem;
  color: var(--color-mint-dark);
  background: var(--color-mint-pale);
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  font-weight: 600;
}

.section-intro {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  line-height: 1.7;
}

/* ── Feed UI Base (Hairline Grid) ── */
.article-feed {
  display: flex;
  flex-direction: column;
}

.feed-card {
  display: block;
  padding: 1.5rem 0;
  background: transparent;
  border-bottom: 1px solid var(--border-hairline);
  text-decoration: none;
  transition: opacity 0.2s ease;
}

.feed-card:hover {
  opacity: 0.7;
}

.feed-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  line-height: 1.6;
  color: var(--color-text-main);
}

.feed-card-summary {
  font-size: 0.95rem;
  line-height: 1.7;
  color: var(--color-text-muted);
  margin-top: 0.6rem;
}

/* ── Semantic Section UI Variations ── */

/* 1. main_topics: News-like, solid, dense, sharp lines */
.section--main_topics .feed-card {
  border-top: 1px solid var(--border-hairline);
  padding: 1.2rem 0;
}
.section--main_topics .feed-card + .feed-card {
  border-top: none;
}
.section--main_topics .feed-card-title {
  font-size: 1.25rem;
}
.section--main_topics .feed-card-title::before {
  content: "■";
  color: var(--color-text-main);
  font-size: 0.6em;
  vertical-align: middle;
  margin-right: 0.5rem;
  opacity: 0.5;
}

/* 2. internet_mood: Subtle "quoted" background */
.section--internet_mood .feed-card {
  padding: 1.2rem 1.5rem;
  border: none;
  background: rgba(165, 235, 213, 0.05); /* faint mint */
  border-left: 3px dashed var(--color-mint-pale);
  margin-bottom: 0.8rem;
  border-radius: 0 12px 12px 0;
}
.section--internet_mood .feed-card:hover {
  border-left-color: var(--color-mint-dark);
  background: rgba(165, 235, 213, 0.1);
}

/* 3. entertainment: Friendly rounded white reading cards */
.section--entertainment .feed-card {
  background: var(--color-bg-paper); /* Pure white */
  border: 1px solid var(--border-hairline);
  border-radius: 12px;
  padding: 1.5rem;
  margin-bottom: 1rem;
  box-shadow: 0 2px 8px rgba(17, 24, 22, 0.02);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.section--entertainment .feed-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(17, 24, 22, 0.05);
  opacity: 1; /* Reset base opacity hover */
}

/* 4. life: Very minimal soft tiles, slight gold nuance */
.section--life .feed-card {
  border: 1px solid rgba(184, 154, 83, 0.15); /* delicate gold border */
  background: var(--color-bg-paper);
  border-radius: 8px;
  padding: 1.2rem;
  margin-bottom: 0.8rem;
}
.section--life .feed-card:hover {
  border-color: var(--color-gold);
  opacity: 1;
}

/* 4. followups: Timeline style, vertical line with gold dot */
.section--followups .article-feed {
  position: relative;
  gap: 0;
  padding-left: 1.5rem;
}
.section--followups .article-feed::before {
  content: "";
  position: absolute;
  left: 3px; top: 0; bottom: 0;
  width: 1px;
  background: var(--border-hairline);
}
.section--followups .feed-card {
  border: none;
  padding: 1.2rem 0 1.2rem 1.5rem;
  position: relative;
}
.section--followups .feed-card::before {
  content: "";
  position: absolute;
  left: -1.75rem; top: 1.8rem;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--color-gold);
  z-index: 2;
  box-shadow: 0 0 0 3px var(--color-bg-base);
}

/* ── Pill Metadata ── */
.pill-row {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  align-items: center;
  margin-top: 1rem;
}

.pill {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.6rem;
  font-size: 0.65rem;
  border-radius: 4px; /* Crisp rectangle */
  font-weight: 600;
  background: var(--color-bg-base);
  color: var(--color-text-muted);
}

.pill--highlight {
  background: var(--color-gold-light);
  color: var(--color-gold);
}

.pill--accent {
  background: var(--color-mint-pale);
  color: var(--color-mint-dark);
}

/* ── Back Link & Footer ── */
.back-link {
  margin-top: 4rem;
  text-align: center;
}

.back-link a {
  display: inline-flex;
  padding: 0.6rem 2rem;
  border-radius: 999px;
  background: transparent;
  border: 1px solid var(--border-hairline);
  color: var(--color-text-main);
  font-size: 0.85rem;
  font-weight: 500;
  transition: all 0.2s ease;
}

.back-link a:hover {
  border-color: var(--color-text-main);
}

.site-footer {
  margin-top: var(--space-2xl);
  padding: 3rem 0;
  text-align: center;
  border-top: 1px solid var(--border-hairline);
}

.footer-brand {
  font-weight: 700;
  font-size: 1rem;
  color: var(--color-text-main);
}

.footer-note {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 0.5rem;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 600px) {
  .front-title { font-size: 2.2rem; }
  .latest-date { font-size: 2.5rem; }
  .daily-date { font-size: 2.4rem; }
  
  .front-intro { padding: var(--space-lg) 0; }
  
  .archive-card {
    flex-direction: column;
    gap: 0.4rem;
  }
}