/* =========================================================
   Music Magazines — 1960s Archive
   Dark theme, clean typography
   ========================================================= */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg:       #ffffff;
  --bg-card:  #f5f5f5;
  --bg-card-hover: #efefef;
  --border:   #dddddd;
  --text:     #1a1a1a;
  --text-dim: #666666;
  --amber:    #1a5fa8;
  --amber-dim:#2b7fd4;
  --radius:   6px;
  --max-w:    860px;
}

html {
  scroll-behavior: smooth;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: sans-serif;
  font-size: 17px;
  line-height: 1.7;
}

a {
  color: var(--amber);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* ---------------------------------------------------------
   Site Header (index)
   --------------------------------------------------------- */

.site-header {
  text-align: center;
  padding: 3.5rem 1rem 2rem;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
}

.site-header h1 {
  font-size: 2.4rem;
  color: #111;
  letter-spacing: 0.04em;
  font-weight: normal;
}

.site-subtitle {
  font-size: 1rem;
  color: var(--text-dim);
  margin-top: 0.4rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-family: "Helvetica Neue", Arial, sans-serif;
}

/* ---------------------------------------------------------
   Year sections
   --------------------------------------------------------- */

main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

.year-section {
  margin-bottom: 3.5rem;
}

.year-heading {
  font-size: 1.5rem;
  color: #111;
  font-weight: normal;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.4rem;
  margin-bottom: 1rem;
  letter-spacing: 0.06em;
}

/* ---------------------------------------------------------
   Filter buttons
   --------------------------------------------------------- */

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.filter-btn {
  background: var(--bg-card);
  color: var(--text-dim);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.3rem 0.9rem;
  cursor: pointer;
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.filter-btn:hover {
  background: var(--bg-card-hover);
  color: var(--text);
}

.filter-btn.active {
  background: var(--amber-dim);
  color: #f0e0b0;
  border-color: var(--amber);
}

/* ---------------------------------------------------------
   Card grid
   --------------------------------------------------------- */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}

.card {
  display: flex;
  flex-direction: column;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: background 0.15s, border-color 0.15s;
  text-decoration: none;
  color: inherit;
}

.card:hover {
  background: var(--bg-card-hover);
  border-color: var(--amber-dim);
  text-decoration: none;
}

.card.hidden {
  display: none;
}

.card-cover {
  width: 100%;
  display: block;
  aspect-ratio: 300 / 420;
  object-fit: cover;
  object-position: top;
}

.card-info {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.8rem 1rem;
}

.card-pub {
  font-size: 0.95rem;
  color: #111;
  font-style: italic;
}

.card-date {
  font-size: 0.85rem;
  color: var(--text);
  font-family: "Helvetica Neue", Arial, sans-serif;
}

.card-includes {
  margin-top: 0.5rem;
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 0.75rem;
}

.card-includes-label {
  display: block;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-dim);
  margin-bottom: 0.2rem;
  font-size: 0.7rem;
}

.card-includes ul {
  padding-left: 1rem;
  margin: 0;
}

.card-includes li {
  color: var(--text);
  margin-bottom: 0.1rem;
}

.card-read-more {
  display: inline-block;
  margin-top: 0.6rem;
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 0.8rem;
  color: var(--amber);
  letter-spacing: 0.04em;
}

/* badges removed */

/* ---------------------------------------------------------
   Issue page — back link
   --------------------------------------------------------- */

.back-link {
  display: inline-block;
  padding: 1rem 1.5rem;
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  color: var(--text-dim);
}

.back-link:hover {
  color: var(--amber);
  text-decoration: none;
}

/* ---------------------------------------------------------
   Issue page — header
   --------------------------------------------------------- */

.issue-header {
  text-align: center;
  padding: 1.5rem 1rem 1rem;
}

.issue-header h1 {
  font-size: 2rem;
  font-weight: normal;
  color: #111;
  letter-spacing: 0.03em;
}

/* ---------------------------------------------------------
   Video block
   --------------------------------------------------------- */

.video-block {
  text-align: center;
  margin: 1.5rem auto 2.5rem;
}

.video-block video {
  width: 300px;
  display: block;
  margin: 0 auto;
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.video-placeholder {
  width: 300px;
  min-height: 200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text-dim);
  font-style: italic;
}

.video-placeholder .placeholder-date {
  font-size: 0.85rem;
  font-style: normal;
  font-family: "Helvetica Neue", Arial, sans-serif;
  color: var(--text-dim);
}

/* ---------------------------------------------------------
   Issue page — sections
   --------------------------------------------------------- */

.of-note,
.summary {
  max-width: var(--max-w);
  margin: 0 auto 2.5rem;
  padding: 0 1.5rem;
}

.of-note h2,
.summary h2 {
  font-size: 1.2rem;
  font-weight: normal;
  color: #111;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.4rem;
  margin-bottom: 1.2rem;
  font-family: "Helvetica Neue", Arial, sans-serif;
}

/* Summary markdown styles */
.summary h2,
.of-note h2 {
  /* already styled above */
}

.summary h3,
.of-note h3 {
  font-size: 1rem;
  font-weight: bold;
  color: #111;
  margin: 1.5rem 0 0.4rem;
  font-family: "Helvetica Neue", Arial, sans-serif;
  letter-spacing: 0.03em;
}

.summary p,
.of-note p {
  margin-bottom: 0.9rem;
  color: var(--text);
}

.summary ul,
.of-note ul,
.summary ol,
.of-note ol {
  padding-left: 1.4rem;
  margin-bottom: 0.9rem;
}

.summary li,
.of-note li {
  margin-bottom: 0.3rem;
  color: var(--text);
}

.summary strong,
.of-note strong {
  color: #111111;
}

.summary em,
.of-note em {
  color: #1a4a7a;
  font-style: italic;
}

.summary hr,
.of-note hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 1.5rem 0;
}

.unavailable {
  color: var(--text-dim);
  font-style: italic;
}

/* ---------------------------------------------------------
   Back to top
   --------------------------------------------------------- */

.back-top {
  text-align: center;
  padding: 2rem 1rem 3rem;
}

.btn-top {
  font-family: "Helvetica Neue", Arial, sans-serif;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.45rem 1.2rem;
  transition: color 0.15s, border-color 0.15s;
}

.btn-top:hover {
  color: var(--amber);
  border-color: var(--amber-dim);
  text-decoration: none;
}

/* ---------------------------------------------------------
   Responsive tweaks
   --------------------------------------------------------- */

@media (max-width: 600px) {
  .site-header h1 {
    font-size: 1.7rem;
  }

  .issue-header h1 {
    font-size: 1.4rem;
  }

  .card-grid {
    grid-template-columns: 1fr 1fr;
  }
}