/* ============================================================
   The Beeb Magazine Archive — BBC Micro / Mode 7 teletext theme
   ============================================================ */

:root {
  /* The eight Mode 7 teletext colours */
  --m7-black:   #000000;
  --m7-red:     #ff2222;
  --m7-green:   #22ff22;
  --m7-yellow:  #ffff22;
  --m7-blue:    #4444ff;
  --m7-magenta: #ff44ff;
  --m7-cyan:    #22ffff;
  --m7-white:   #f0f0f0;

  --phosphor-glow: 0 0 6px;
  --font-beeb: 'VT323', 'ModeSeven', 'Courier New', monospace;
}

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

html { background: #0a0a0a; }

body {
  font-family: var(--font-beeb);
  font-size: 22px;
  line-height: 1.25;
  color: var(--m7-white);
  background: var(--m7-black);
  min-height: 100vh;
}

/* ---------- CRT effects ---------- */

.crt-scanlines {
  position: fixed; inset: 0; z-index: 100; pointer-events: none;
  background: repeating-linear-gradient(
    to bottom,
    rgba(0,0,0,0)    0px,
    rgba(0,0,0,0)    2px,
    rgba(0,0,0,.22)  3px,
    rgba(0,0,0,0)    4px
  );
}

.crt-vignette {
  position: fixed; inset: 0; z-index: 101; pointer-events: none;
  background: radial-gradient(ellipse at center,
    rgba(0,0,0,0) 60%, rgba(0,0,0,.35) 100%);
}

#screen {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 20px 80px;
}

a { color: var(--m7-cyan); text-decoration: none; }
a:hover, a:focus { color: var(--m7-black); background: var(--m7-cyan); outline: none; }

/* ---------- Boot banner ---------- */

#boot .boot-text {
  font-family: var(--font-beeb);
  font-size: 22px;
  color: var(--m7-white);
  text-shadow: var(--phosphor-glow) rgba(240,240,240,.5);
  margin-bottom: 18px;
  white-space: pre-wrap;
}

/* Teletext double-height text */
.dh {
  display: inline-block;
  font-size: 1.6em;
  transform: scaleY(1.4);
  transform-origin: bottom left;
  letter-spacing: 1px;
}

.cursor {
  animation: blink 1s steps(1) infinite;
  color: var(--m7-white);
}
@keyframes blink { 50% { opacity: 0; } }

/* ---------- Function-key navigation ---------- */

#fkeys {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  padding: 10px 0 14px;
  border-top: 2px solid #333;
  border-bottom: 2px solid #333;
  margin-bottom: 22px;
}

.fkey {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #b03020;                 /* the red-orange Beeb function keys */
  color: #fff;
  padding: 6px 14px 6px 8px;
  border: 2px solid #7a1f14;
  border-bottom-width: 5px;
  box-shadow: inset 0 2px 0 rgba(255,255,255,.25);
  text-shadow: none;
}
.fkey:hover, .fkey:focus, .fkey.active {
  background: #e04a30;
  color: #fff;
  transform: translateY(2px);
  border-bottom-width: 3px;
}
.fkey-cap {
  background: rgba(0,0,0,.35);
  padding: 0 6px;
  font-size: .85em;
}
.fkey-label { letter-spacing: 2px; }

/* ---------- General page furniture ---------- */

.page-title {
  color: var(--m7-yellow);
  text-shadow: var(--phosphor-glow) rgba(255,255,34,.5);
  margin-bottom: 4px;
}
.page-sub {
  color: var(--m7-green);
  margin-bottom: 20px;
}

.prompt-line { color: var(--m7-white); margin-bottom: 16px; }
.prompt-line::before { content: ">"; margin-right: 6px; }

.loading { color: var(--m7-green); }

.err { color: var(--m7-red); }

/* Teletext colour helpers, assigned per-series */
.c-red     { color: var(--m7-red); }
.c-green   { color: var(--m7-green); }
.c-yellow  { color: var(--m7-yellow); }
.c-blue    { color: var(--m7-blue); }
.c-magenta { color: var(--m7-magenta); }
.c-cyan    { color: var(--m7-cyan); }
.c-white   { color: var(--m7-white); }

.bg-red     { background: var(--m7-red); }
.bg-green   { background: var(--m7-green); }
.bg-yellow  { background: var(--m7-yellow); }
.bg-blue    { background: var(--m7-blue); }
.bg-magenta { background: var(--m7-magenta); }
.bg-cyan    { background: var(--m7-cyan); }
.bg-white   { background: var(--m7-white); }

/* ---------- Series grid (home) ---------- */

.series-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(310px, 1fr));
  gap: 16px;
}

.series-card {
  display: block;
  border: 2px solid #333;
  padding: 0;
  color: var(--m7-white);
}
.series-card:hover, .series-card:focus {
  background: transparent;
  border-color: var(--m7-white);
  color: var(--m7-white);
}

.series-card .band {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 4px 10px;
  color: var(--m7-black);
  font-weight: bold;
}
.series-card .band .count { font-size: .85em; }

.series-card .body { padding: 10px; }
.series-card .years { color: var(--m7-green); }
.series-card .desc  { color: #aaa; font-size: .85em; margin-top: 4px; min-height: 2.2em; }

/* ---------- Issue grid (series page) ---------- */

.year-heading {
  color: var(--m7-cyan);
  border-bottom: 1px solid #333;
  margin: 26px 0 12px;
}

.issue-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 16px;
}

.issue-card {
  display: block;
  border: 2px solid #333;
  color: var(--m7-white);
}
.issue-card:hover, .issue-card:focus {
  background: transparent;
  border-color: var(--m7-white);
  color: var(--m7-white);
}

.issue-cover {
  position: relative;
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: #111;
  display: flex;
  align-items: center;
  justify-content: center;
}
.issue-cover img {
  width: 100%; height: 100%;
  object-fit: cover;
  image-rendering: pixelated;
}

/* Generated placeholder cover when no scan is available */
.cover-placeholder {
  width: 100%; height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 8px;
}
.cover-placeholder .ph-series {
  color: var(--m7-black);
  padding: 2px 6px;
  font-size: .8em;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}
.cover-placeholder .ph-issue {
  font-size: 2.4em;
  text-align: center;
  transform: scaleY(1.3);
}
.cover-placeholder .ph-date { color: #888; text-align: center; font-size: .85em; }

.issue-meta { padding: 6px 8px; }
.issue-meta .t { display: block; }
.issue-meta .d { color: var(--m7-green); font-size: .85em; }

/* ---------- Search ---------- */

.search-form {
  display: flex;
  align-items: center;
  gap: 0;
  margin-bottom: 22px;
  border: 2px solid #333;
  padding: 10px 12px;
}
.search-form label { color: var(--m7-white); white-space: pre; }
.search-form input {
  flex: 1;
  font-family: var(--font-beeb);
  font-size: 22px;
  background: transparent;
  border: none;
  color: var(--m7-yellow);
  caret-color: var(--m7-white);
  outline: none;
}
.search-form button {
  font-family: var(--font-beeb);
  font-size: 18px;
  background: var(--m7-white);
  color: var(--m7-black);
  border: none;
  padding: 4px 14px;
  cursor: pointer;
  letter-spacing: 2px;
}
.search-form button:hover { background: var(--m7-yellow); }

.result-count { color: var(--m7-green); margin-bottom: 14px; }

.result {
  border-left: 4px solid #333;
  padding: 8px 12px;
  margin-bottom: 12px;
}
.result .r-title { font-size: 1.1em; }
button.r-title {
  background: none;
  border: none;
  padding: 0;
  font-family: inherit;
  color: var(--m7-cyan);
  text-decoration: none;
  cursor: pointer;
  text-align: left;
  display: inline;
}
button.r-title:hover, button.r-title:focus { color: var(--m7-black); background: var(--m7-cyan); outline: none; }
.result .r-details { font-size: .85em; color: var(--m7-green); margin-left: 6px; }
.result .r-meta  { color: var(--m7-green); font-size: .9em; }
.result .r-snip  { color: #aaa; font-size: .85em; margin-top: 2px; }
.result mark {
  background: var(--m7-yellow);
  color: var(--m7-black);
  padding: 0 1px;
}

/* ---------- Issue actions ---------- */

.btn {
  display: inline-block;
  font-family: var(--font-beeb);
  font-size: inherit;
  background: var(--m7-white);
  color: var(--m7-black);
  padding: 4px 16px;
  letter-spacing: 2px;
  border: none;
  cursor: pointer;
}
.btn:hover, .btn:focus { background: var(--m7-yellow); color: var(--m7-black); }
.btn.secondary { background: transparent; color: var(--m7-cyan); border: 2px solid var(--m7-cyan); }
.btn.secondary:hover { background: var(--m7-cyan); color: var(--m7-black); }

/* ---------- Breadcrumb / catalog header ---------- */

.cat-header {
  color: var(--m7-white);
  margin-bottom: 4px;
}
.cat-header a { color: var(--m7-cyan); }

/* ---------- Footer, styled like a DFS catalogue line ---------- */

#dfs-footer {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 50;
  display: flex;
  justify-content: space-between;
  padding: 6px 20px;
  background: #050505;
  border-top: 2px solid #333;
  color: var(--m7-green);
  font-size: 18px;
}

/* ---------- About page ---------- */

.about-block { max-width: 760px; }
.about-block p { margin-bottom: 14px; color: #ccc; }
.about-block h2 { color: var(--m7-cyan); margin: 20px 0 8px; }
.about-block code {
  font-family: var(--font-beeb);
  color: var(--m7-yellow);
  background: #111;
  padding: 0 6px;
}

/* ---------- Small screens ---------- */

@media (max-width: 600px) {
  body { font-size: 18px; }
  #boot .boot-text { font-size: 18px; }
  .search-form input { font-size: 18px; }
  #dfs-footer { font-size: 14px; }
}

/* Respect users who prefer no animation */
@media (prefers-reduced-motion: reduce) {
  .cursor { animation: none; }
}