/* ===== THE ANALOG HI-FI ===== */
@import url('https://fonts.googleapis.com/css2?family=Courier+Prime:ital,wght@0,400;0,700;1,400&family=IBM+Plex+Sans:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;700&display=swap');

:root {
  --color-wood: #2a1b15;
  --color-wood-light: #3d2a1f;
  --color-metal: #c0c0c0;
  --color-metal-dark: #808080;
  --color-faceplate: #1a1a1a;
  --color-glow-amber: #ffb300;
  --color-glow-orange: #ff6600;
  --color-glow-green: #39ff14;
  --color-text: #e0e0e0;
  --color-text-muted: #888;
  --color-bg: #121212;
  
  --font-display: 'Courier Prime', monospace;
  --font-body: 'IBM Plex Sans', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --cabinet-padding: 40px;
  --bezel-size: 15px;
  --content-max: 900px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 20px;
}

/* Wood Grain Background Pattern */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-color: var(--color-wood);
  background-image: 
    repeating-linear-gradient(90deg, transparent, transparent 40px, rgba(0,0,0,0.1) 41px),
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 100% 100%;
  z-index: -1;
}

a { color: var(--color-glow-amber); text-decoration: none; transition: all 0.2s; }
a:hover { color: #fff; text-shadow: 0 0 10px var(--color-glow-amber); }

/* ===== LED INDICATOR BANNER (AI DESIGN) ===== */
.site-banner {
  background: var(--color-faceplate);
  border: 2px solid var(--color-metal-dark);
  border-radius: 4px;
  margin-bottom: 20px;
  height: 40px;
  display: flex;
  align-items: center;
  overflow: hidden;
  box-shadow: inset 0 0 10px rgba(0,0,0,0.8);
  position: relative;
}
.site-banner::before {
  content: 'STATUS';
  background: var(--color-glow-amber);
  color: #000;
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 700;
  padding: 0 10px;
  height: 100%;
  display: flex;
  align-items: center;
  margin-right: 15px;
}
.banner-text {
  display: flex;
  white-space: nowrap;
  animation: ticker 40s linear infinite;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-glow-orange);
  text-transform: uppercase;
  letter-spacing: 2px;
}
.banner-group { display: inline-flex; }
@keyframes ticker {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ===== HI-FI CABINET WRAPPER ===== */
.hifi-cabinet {
  max-width: 1100px;
  margin: 0 auto;
  background: var(--color-faceplate);
  border: var(--bezel-size) solid var(--color-wood-light);
  border-radius: 8px;
  box-shadow: 
    0 20px 50px rgba(0,0,0,0.8),
    inset 0 0 20px rgba(0,0,0,0.5);
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 80vh;
}

/* Brushed Metal Bezel Detail */
.hifi-cabinet::after {
  content: '';
  position: absolute;
  inset: calc(var(--bezel-size) * -1);
  border: 2px solid var(--color-metal);
  pointer-events: none;
  border-radius: 8px;
  opacity: 0.3;
}

/* ===== CONTROL PANEL (HEADER/NAV) ===== */
.control-panel {
  background: linear-gradient(to bottom, #2a2a2a, #1a1a1a);
  padding: 30px 40px;
  border-bottom: 4px solid var(--color-metal-dark);
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
}

.brand-plate {
  font-family: var(--font-display);
  font-size: 24px;
  font-weight: 700;
  color: var(--color-metal);
  text-transform: uppercase;
  letter-spacing: 5px;
  display: flex;
  flex-direction: column;
}
.brand-plate span {
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--color-text-muted);
}

.nav-buttons {
  display: flex;
  gap: 15px;
}

.push-button {
  width: 60px;
  height: 40px;
  background: var(--color-metal);
  border: none;
  border-bottom: 4px solid var(--color-metal-dark);
  border-radius: 4px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: all 0.1s;
  position: relative;
  box-shadow: 0 4px 0 rgba(0,0,0,0.3);
}
.push-button::before {
  content: '';
  position: absolute;
  top: 5px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #333;
  transition: all 0.2s;
}
.push-button.active {
  transform: translateY(2px);
  border-bottom-width: 2px;
  background: var(--color-metal-dark);
}
.push-button.active::before {
  background: var(--color-glow-green);
  box-shadow: 0 0 10px var(--color-glow-green);
}
.button-label {
  font-family: var(--font-mono);
  font-size: 9px;
  font-weight: 700;
  color: #333;
  margin-top: 15px;
  text-transform: uppercase;
}

/* ===== MAIN RACK AREA ===== */
.rack-main {
  flex: 1;
  padding: 40px;
  background-image: 
    radial-gradient(circle at 50% 50%, rgba(255,179,0,0.03) 0%, transparent 70%);
}

/* ===== VU METERS (HERO) ===== */
.vu-meter-section {
  display: flex;
  gap: 40px;
  margin-bottom: 60px;
  justify-content: center;
}

.vu-meter {
  width: 200px;
  height: 120px;
  background: #fff;
  border-radius: 4px 4px 60% 60%;
  position: relative;
  overflow: hidden;
  border: 4px solid var(--color-metal-dark);
  box-shadow: inset 0 10px 20px rgba(0,0,0,0.2);
}
.vu-meter::before {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 20px;
  height: 20px;
  background: #333;
  border-radius: 50%;
  transform: translate(-50%, 50%);
  z-index: 2;
}
.vu-needle {
  position: absolute;
  bottom: 10px;
  left: 50%;
  width: 2px;
  height: 90px;
  background: #d00;
  transform-origin: bottom center;
  transform: rotate(-45deg);
  transition: transform 0.1s ease-out;
  animation: needle-flicker 2s infinite alternate ease-in-out;
  z-index: 1;
}
@keyframes needle-flicker {
  0% { transform: rotate(-45deg); }
  25% { transform: rotate(-10deg); }
  50% { transform: rotate(-30deg); }
  75% { transform: rotate(15deg); }
  100% { transform: rotate(-20deg); }
}

.vu-scale {
  position: absolute;
  top: 15px;
  left: 10px;
  right: 10px;
  height: 40px;
  border-top: 2px solid #333;
  display: flex;
  justify-content: space-between;
  padding: 0 10px;
  font-family: var(--font-mono);
  font-size: 10px;
  color: #333;
}

/* ===== CASSETTE DECK (APPS) ===== */
.cassette-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-bottom: 60px;
}

.cassette {
  background: #333;
  border-radius: 10px;
  padding: 20px;
  position: relative;
  border: 2px solid var(--color-metal-dark);
  box-shadow: 5px 5px 0 rgba(0,0,0,0.5);
  text-decoration: none;
  color: var(--color-text);
  transition: all 0.2s;
}
.cassette:hover {
  transform: translate(-2px, -2px);
  box-shadow: 7px 7px 0 var(--color-glow-amber);
}

.cassette-window {
  height: 80px;
  background: #1a1a1a;
  border-radius: 5px;
  margin-bottom: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  border: 1px solid #444;
}
.cassette-window::before, .cassette-window::after {
  content: '';
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #222;
  border: 4px dashed #444;
  position: absolute;
  animation: spin 4s linear infinite;
}
.cassette-window::before { left: 40px; }
.cassette-window::after { right: 40px; }
@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

.cassette-label {
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-glow-amber);
  text-transform: uppercase;
  text-align: center;
}
.cassette-sub {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-text-muted);
  text-align: center;
  margin-top: 5px;
}

/* ===== TRACK LIST (POSTS) ===== */
.track-list {
  background: rgba(255,255,255,0.02);
  border: 2px solid #333;
  border-radius: 4px;
  padding: 30px;
}
.track-item {
  display: grid;
  grid-template-columns: 40px 1fr 100px;
  padding: 12px 0;
  border-bottom: 1px solid #333;
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--color-text);
  text-decoration: none;
  transition: all 0.2s;
}
.track-item:hover {
  color: var(--color-glow-amber);
  background: rgba(255,255,255,0.03);
}
.track-num { color: var(--color-text-muted); }
.track-title { font-weight: 600; }
.track-time { text-align: right; color: var(--color-text-muted); }

/* ===== VACUUM TUBES (BOOKS) ===== */
.tube-rack {
  display: flex;
  gap: 30px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 40px;
}

.vacuum-tube {
  width: 120px;
  height: 180px;
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-decoration: none;
}

.tube-glass {
  width: 80px;
  height: 140px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 40px 40px 10px 10px;
  position: relative;
  overflow: hidden;
  transition: all 0.3s;
}
.vacuum-tube:hover .tube-glass {
  background: rgba(255,102,0,0.1);
  border-color: var(--color-glow-orange);
  box-shadow: 0 0 30px rgba(255,102,0,0.3);
}

.filament {
  width: 4px;
  height: 80px;
  background: #444;
  position: absolute;
  top: 30px;
  left: 50%;
  transform: translateX(-50%);
  transition: all 0.3s;
}
.vacuum-tube:hover .filament {
  background: var(--color-glow-orange);
  box-shadow: 0 0 15px var(--color-glow-orange);
}

.tube-base {
  width: 100px;
  height: 30px;
  background: #222;
  border-radius: 4px;
  margin-top: -5px;
  z-index: 2;
  border: 2px solid #444;
}

.tube-label {
  font-family: var(--font-mono);
  font-size: 10px;
  color: var(--color-text-muted);
  text-align: center;
  margin-top: 10px;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ===== REAR PANEL (FOOTER) ===== */
.rear-panel {
  background: #222;
  border-top: 4px solid var(--color-metal-dark);
  padding: 40px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 40px;
  font-family: var(--font-mono);
  font-size: 11px;
}

.rca-jack-group {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
}
.rca-jack {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 4px solid var(--color-metal);
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}
.rca-jack.red { background: #d00; }
.rca-jack.white { background: #fff; }

.panel-label {
  color: var(--color-text-muted);
  text-transform: uppercase;
  margin-bottom: 10px;
  border-bottom: 1px solid #444;
  padding-bottom: 5px;
}

/* ===== ALBUM SLEEVE (BOOKS) ===== */
.album-sleeve {
  display: flex;
  gap: 20px;
  background: #222;
  border: 4px solid #333;
  padding: 15px;
  margin-bottom: 10px;
  text-decoration: none;
  color: var(--color-text);
  transition: all 0.2s;
  position: relative;
  overflow: hidden;
}
.album-sleeve::before {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 5px; height: 100%;
  background: var(--color-glow-amber);
}
.album-sleeve:hover {
  background: #2a2a2a;
  border-color: var(--color-metal-dark);
  transform: translateX(5px);
}
.sleeve-info {
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.sleeve-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  color: var(--color-metal);
}
.sleeve-author {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-text-muted);
}
.sleeve-rating {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--color-glow-amber);
  display: flex;
  align-items: center;
}

/* ===== SORT CONTROLS ===== */
.sort-controls {
  display: flex;
  gap: 10px;
  margin-bottom: 30px;
  padding: 15px;
  background: #1a1a1a;
  border: 2px solid #333;
  border-radius: 4px;
}
.sort-controls span {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-text-muted);
  text-transform: uppercase;
  align-self: center;
}
.sort-link {
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--color-text-muted);
  padding: 5px 10px;
  border: 1px solid #333;
  text-transform: uppercase;
  transition: all 0.2s;
}
.sort-link.active {
  color: #000;
  background: var(--color-glow-amber);
  border-color: var(--color-glow-amber);
}

/* ===== YEAR HEADINGS ===== */
.year-heading {
  font-family: var(--font-display);
  font-size: 14px;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 5px;
  margin: 40px 0 20px;
  display: flex;
  align-items: center;
  gap: 15px;
}
.year-heading::after {
  content: '';
  flex: 1;
  height: 2px;
  background: #333;
}

/* ===== APP LIST (APPS PAGE) ===== */
.app-list-item {
  display: block;
  padding: 30px;
  background: #222;
  border: 4px solid #333;
  margin-bottom: 20px;
  text-decoration: none;
  transition: all 0.2s;
}
.app-list-item:hover {
  border-color: var(--color-glow-amber);
  background: #2a2a2a;
}
.app-name {
  font-family: var(--font-display);
  font-size: 24px;
  color: var(--color-metal);
}
.app-tagline {
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--color-text-muted);
  margin-top: 5px;
}
.document-header {
  margin-bottom: 40px;
  padding-bottom: 20px;
  border-bottom: 2px solid #333;
}
.document-title {
  font-family: var(--font-display);
  font-size: 42px;
  color: var(--color-metal);
  letter-spacing: -1px;
}
.document-content {
  font-size: 18px;
  line-height: 1.8;
}
.document-content h2 {
  font-family: var(--font-display);
  margin-top: 1.5em;
  color: var(--color-glow-amber);
}
.hifi-takeaway {
  background: rgba(255,179,0,0.05);
  border: 2px solid #333;
  border-left: 6px solid var(--color-glow-amber);
  padding: 30px;
  margin: 40px 0;
  border-radius: 4px;
}
/* ===== OSCILLOSCOPE DISPLAY (CAROUSEL) ===== */
.oscilloscope-display {
  background: #050505;
  border: 4px solid var(--color-metal-dark);
  border-radius: 8px;
  margin: 40px 0;
  padding: 20px;
  position: relative;
  box-shadow: inset 0 0 30px rgba(57, 255, 20, 0.1);
  overflow: hidden;
}
.oscilloscope-display::before {
  content: 'SCREENSHOT CAPTURE / MONITOR';
  position: absolute;
  top: 5px;
  left: 15px;
  font-family: var(--font-mono);
  font-size: 9px;
  color: var(--color-glow-green);
  opacity: 0.6;
  z-index: 5;
}

.carousel-viewport {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  padding-bottom: 15px;
  scrollbar-width: thin;
  scrollbar-color: var(--color-glow-green) #1a1a1a;
}
.carousel-viewport::-webkit-scrollbar {
  height: 6px;
}
.carousel-viewport::-webkit-scrollbar-track {
  background: #1a1a1a;
}
.carousel-viewport::-webkit-scrollbar-thumb {
  background: var(--color-glow-green);
  border-radius: 3px;
}

.carousel-slide {
  flex: 0 0 100%;
  scroll-snap-align: center;
  display: flex;
  justify-content: center;
  align-items: center;
}
.carousel-slide img {
  max-width: 100%;
  max-height: 500px;
  height: auto;
  border: 2px solid #333;
  border-radius: 4px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.carousel-controls {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 15px;
}
.carousel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #333;
  cursor: pointer;
  border: none;
  transition: all 0.2s;
}
.carousel-dot.active {
  background: var(--color-glow-green);
  box-shadow: 0 0 10px var(--color-glow-green);
}

/* Graticule grid overlay */
.oscilloscope-display::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: 
    linear-gradient(rgba(57, 255, 20, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(57, 255, 20, 0.05) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 1;
}

/* ===== MOBILE ===== */
@media (max-width: 768px) {
  .control-panel { flex-direction: column; gap: 20px; text-align: center; }
  .vu-meter-section { flex-direction: column; align-items: center; }
  .rack-main { padding: 20px; }
  .hifi-cabinet { border-width: 8px; }
}