/* radio/radio.css — Radio player page.
   All color variables come from core/theme.css. */

* {
  box-sizing: border-box;
}

html {
  background-color: var(--bg);
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
  font-family: "Helvetica Neue", "Arial Narrow", Arial, sans-serif;
}

.radio-header {
  max-width: 1040px;
  margin: 0 auto;
  padding: 20px 16px;
  border-bottom: 1px solid var(--border);
}

.back-link {
  color: var(--ink);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.75rem;
}

.logo {
  display: block;
  width: 120px;
  margin-top: 14px;
  filter: var(--logo-filter);
}

h1 {
  margin: 14px 0 0;
  font-family: "Arial Black", Impact, sans-serif;
  font-size: clamp(2rem, 6vw, 4rem);
  letter-spacing: 0.03em;
  color: var(--ink);
}

.radio-title {
  display: flex;
  align-items: center;
  gap: 14px;
}

.radio-title > span:last-child {
  text-shadow:
    0 2px 0 rgba(7, 21, 56, 0.92),
    0 0 18px rgba(255, 226, 121, 0.18);
}

.title-logo {
  width: clamp(110px, 16vw, 180px);
  height: auto;
  display: block;
  filter: var(--logo-filter);
}

.title-logo-disc {
  width: clamp(84px, 12vw, 124px);
  filter: none;
  animation: cd-spin 9s linear infinite;
  filter:
    drop-shadow(0 0 0.24rem rgba(255, 229, 125, 0.38))
    drop-shadow(0 0.6rem 1.1rem rgba(3, 11, 30, 0.62));
}

.title-logo.bitsikoko {
  width: clamp(124px, 19vw, 214px);
  filter: none;
}

.radio-title[data-title-mode='amem'] .title-logo.bitsikoko {
  display: none;
}

.radio-title[data-title-mode='bitsikoko'] .title-logo-disc {
  display: none;
}

.radio-layout {
  max-width: 1040px;
  margin: 0 auto;
  padding: 18px 16px 30px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.player-card,
.playlist-card {
  border: 1px solid var(--border);
  background: rgba(13, 36, 80, 0.8);
  padding: 16px;
}

.category-nav {
  margin-bottom: 12px;
  display: flex;
  gap: 8px;
}

.category-tab {
  border: 1px solid var(--border);
  background: var(--input-bg);
  color: var(--ink);
  font: inherit;
  padding: 8px 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.74rem;
  cursor: pointer;
}

.category-tab.active {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}

.meta {
  margin: 0;
  color: var(--ink-light);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: 0.72rem;
}

h2 {
  margin: 10px 0 14px;
  font-size: clamp(1.1rem, 2.6vw, 1.6rem);
}

.now-playing {
  display: flex;
  align-items: flex-end;
  gap: 12px;
}

.soundwaves {
  display: inline-flex;
  align-items: flex-end;
  gap: 4px;
  height: 20px;
  opacity: 0.38;
  transition: opacity 140ms ease;
}

.soundwaves.playing {
  opacity: 1;
}

.soundwave-bar {
  display: block;
  flex: 0 0 4px;
  width: 4px;
  height: 10px;
  background: var(--ink-light);
  border-radius: 999px;
  transform-origin: bottom center;
  box-shadow: 0 0 8px rgba(255, 229, 125, 0.3);
  transform: scaleY(0.55);
  will-change: transform;
}

.soundwaves.playing .soundwave-bar:nth-child(1) {
  animation: soundwave-bounce 0.72s ease-in-out infinite;
}

.soundwaves.playing .soundwave-bar:nth-child(2) {
  animation: soundwave-bounce 0.58s ease-in-out 0.12s infinite;
}

.soundwaves.playing .soundwave-bar:nth-child(3) {
  animation: soundwave-bounce 0.8s ease-in-out 0.2s infinite;
}

audio {
  width: 100%;
}

.player-actions {
  margin-top: 12px;
  display: flex;
  gap: 8px;
}

button {
  border: 1px solid var(--border);
  background: var(--input-bg);
  color: var(--ink);
  font: inherit;
  padding: 8px 10px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.74rem;
  cursor: pointer;
}

button:hover {
  border-color: var(--ink-light);
}

.player-actions button.active,
.player-actions button[aria-pressed='true'] {
  background: var(--ink);
  color: var(--bg);
  border-color: var(--ink);
}

.playlist {
  margin: 12px 0 0;
  padding-left: 20px;
  display: grid;
  gap: 8px;
}

.track-btn {
  width: 100%;
  display: block;
  text-align: left;
  background: var(--input-bg);
}

.track-btn.active {
  border-color: var(--ink-light);
  color: var(--ink);
}

.empty-state {
  margin-top: 12px;
  color: var(--ink-muted);
  line-height: 1.4;
}

@media (max-width: 820px) {
  .radio-layout {
    grid-template-columns: 1fr;
  }

  .radio-title {
    gap: 10px;
  }

  .title-logo {
    width: clamp(92px, 28vw, 138px);
  }

  .title-logo-disc {
    width: clamp(76px, 22vw, 104px);
  }

  .title-logo.bitsikoko {
    width: clamp(108px, 34vw, 164px);
  }
}

@keyframes cd-spin {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

@keyframes soundwave-bounce {
  0%,
  100% {
    transform: scaleY(0.55);
  }

  50% {
    transform: scaleY(2.2);
  }
}