/* ─────────────────────────────────────────────────────────────────
   Dev.fm — Developer Playlist
   Dark terminal aesthetic with electric accents.
   Inspired by hornokplease.xyz, reimagined for developers.
   ───────────────────────────────────────────────────────────────── */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;600;700&family=Inter:wght@300;400;500;600;700;800;900&display=swap');

:root {
  /* Layout */
  --edge: clamp(1rem, 2.2vw, 1.75rem);

  /* Colors — dark terminal theme with electric accents */
  --bg-base: #080b14;
  --accent-primary: #00f5a0;
  --accent-secondary: #00d4ff;
  --accent-warning: #ff6b35;
  --accent-purple: #7c3aed;
  --glass: rgba(255, 255, 255, 0.06);
  --glass-hover: rgba(255, 255, 255, 0.12);
  --glass-line: rgba(255, 255, 255, 0.12);
  --glass-line-strong: rgba(255, 255, 255, 0.22);
  --shadow-glass: 0 8px 40px rgba(0, 0, 0, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.12);
  --text-shadow: 0 1px 6px rgba(0, 0, 0, 0.8);

  /* Typography */
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', 'SF Mono', 'Consolas', monospace;
  --font-ui: 'Inter', -apple-system, 'Segoe UI', system-ui, sans-serif;

  /* Motion */
  --swift: 140ms cubic-bezier(0.4, 0, 0.2, 1);
  --glide: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --settle: 600ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-settle: cubic-bezier(0.16, 1, 0.3, 1);

  /* Logo position */
  --logo-top: 14vh;
}

/* ── Reset ──────────────────────────────────────────────────────── */
* { box-sizing: border-box; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
  border: 0;
}

html, body { height: 100%; }

body {
  margin: 0;
  font-family: var(--font-ui);
  color: #fff;
  background: var(--bg-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow: hidden;
}

/* ── Entrance animations ────────────────────────────────────────── */

@keyframes rise {
  from { opacity: 0; transform: translate3d(0, 18px, 0); }
  to   { opacity: 1; transform: none; }
}

@keyframes rise-right {
  from { opacity: 0; transform: translate3d(16px, 0, 0); }
  to   { opacity: 1; transform: none; }
}

@keyframes fade {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes glow-pulse {
  0%, 100% { box-shadow: 0 0 8px rgba(0, 245, 160, 0.4), 0 0 20px rgba(0, 245, 160, 0.15); }
  50%       { box-shadow: 0 0 16px rgba(0, 245, 160, 0.8), 0 0 40px rgba(0, 245, 160, 0.3); }
}

@keyframes cursor-blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0; }
}

@keyframes scanline {
  0%   { transform: translateY(-100%); }
  100% { transform: translateY(100vh); }
}

.topbar  { animation: rise var(--settle) 0.28s both; }
.logo    { animation: rise var(--settle) 0.06s both; }
.logo__tagline { animation: rise var(--settle) 0.14s both; }
.dock    { animation: rise var(--settle) 0.20s both; }
.terminal-badge { animation: rise-right var(--settle) 0.36s both; }

/* ── Background ─────────────────────────────────────────────────── */

.bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background: var(--bg-base);
}

.bg__layer {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-repeat: no-repeat;
  background-position: center;
  opacity: 0;
  transition: opacity 1.4s var(--ease-settle);
  filter: saturate(0.5) brightness(0.25);
}

.bg__layer.is-active { opacity: 1; }

/* Grid overlay — the "code editor" feeling */
.bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 245, 160, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 245, 160, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: 1;
}

/* Scanline effect */
.bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    transparent 50%,
    rgba(0, 0, 0, 0.04) 50%
  );
  background-size: 100% 4px;
  pointer-events: none;
  z-index: 1;
}

/* Particles canvas */
.bg__particles {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 2;
  opacity: 0.6;
}

.bg__scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(8, 11, 20, 0.7) 0%,
    rgba(8, 11, 20, 0.3) 30%,
    rgba(8, 11, 20, 0.4) 60%,
    rgba(8, 11, 20, 0.85) 100%
  );
  pointer-events: none;
  z-index: 3;
}

/* Accent glow from bottom */
.bg__scrim::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 40%;
  background: radial-gradient(ellipse at bottom, rgba(0, 245, 160, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

.yt-host {
  position: fixed;
  top: 0; left: 0;
  width: 1px; height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}

main {
  position: relative;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: max(var(--edge), env(safe-area-inset-top)) var(--edge)
    max(var(--edge), env(safe-area-inset-bottom));
}

/* ── Top bar ─────────────────────────────────────────────────────── */

.topbar {
  position: fixed;
  top: max(1rem, env(safe-area-inset-top));
  left: var(--edge);
  right: var(--edge);
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.topbar__left {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: rgba(255, 255, 255, 0.5);
}

.topbar__brand {
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--accent-primary);
  letter-spacing: -0.02em;
  text-shadow: 0 0 20px rgba(0, 245, 160, 0.5);
}

.brand__prefix {
  color: rgba(0, 245, 160, 0.5);
  margin-right: 0.1em;
}

.topbar__right {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.clock {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 400;
  font-variant-numeric: tabular-nums;
  color: rgba(255, 255, 255, 0.4);
}

.status-dot {
  position: relative;
  width: 8px;
  height: 8px;
  flex: none;
}

.status-dot__ring {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: var(--accent-primary);
  box-shadow: 0 0 6px rgba(0, 245, 160, 0.9);
  animation: glow-pulse 2s ease-in-out infinite;
}

.status-dot__ring::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  background: var(--accent-primary);
  opacity: 0;
  animation: ping 2s cubic-bezier(0, 0, 0.2, 1) infinite;
}

@keyframes ping {
  75%, 100% { transform: scale(2.5); opacity: 0; }
}

.status-text {
  font-size: 0.7rem;
  color: rgba(255, 255, 255, 0.35);
}

.nav-link {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 8px;
  color: rgba(255, 255, 255, 0.5);
  text-decoration: none;
  border: 1px solid transparent;
  transition: background var(--swift), color var(--swift), border-color var(--swift);
}

.nav-link:hover {
  background: var(--glass-hover);
  color: var(--accent-primary);
  border-color: var(--glass-line);
}

/* ── Terminal badge (left) ───────────────────────────────────────── */

.terminal-badge {
  position: fixed;
  left: var(--edge);
  top: 50%;
  translate: 0 -50%;
  z-index: 20;
  width: 11rem;
  border-radius: 10px;
  border: 1px solid var(--glass-line);
  background: rgba(8, 11, 20, 0.7);
  backdrop-filter: blur(20px) saturate(130%);
  -webkit-backdrop-filter: blur(20px) saturate(130%);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.terminal-badge__header {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.5rem 0.65rem;
  background: rgba(255, 255, 255, 0.04);
  border-bottom: 1px solid var(--glass-line);
}

.terminal-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex: none;
}

.terminal-dot--red    { background: #ff5f57; }
.terminal-dot--yellow { background: #febc2e; }
.terminal-dot--green  { background: #28c840; }

.terminal-badge__title {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: rgba(255, 255, 255, 0.3);
  margin-left: 0.2rem;
}

.terminal-badge__body {
  padding: 0.5rem 0.65rem;
}

.terminal-line {
  margin: 0 0 0.2rem;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: rgba(255, 255, 255, 0.6);
  display: flex;
  gap: 0.4rem;
  align-items: center;
}

.terminal-prompt {
  color: var(--accent-primary);
  font-weight: 700;
}

.terminal-cmd {
  color: rgba(255, 255, 255, 0.7);
}

.terminal-cmd::after {
  content: '▋';
  display: inline-block;
  color: var(--accent-primary);
  animation: cursor-blink 1s step-end infinite;
  margin-left: 1px;
}

.terminal-output {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: var(--accent-primary);
}

/* ── Wordmark ────────────────────────────────────────────────────── */

.logo {
  margin: var(--logo-top) 0 0;
  display: flex;
  align-items: baseline;
  gap: 0;
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(2.2rem, 7.5vw, 5.5rem);
  line-height: 1;
  letter-spacing: -0.04em;
  color: #fff;
  user-select: none;
  filter: drop-shadow(0 4px 30px rgba(0, 0, 0, 0.6));
}

.logo__prefix {
  color: rgba(0, 245, 160, 0.6);
  font-weight: 400;
  font-size: 0.65em;
  margin-right: 0.08em;
  align-self: center;
}

.logo__name {
  background: linear-gradient(135deg, #ffffff 0%, rgba(255, 255, 255, 0.75) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo__dot {
  color: var(--accent-primary);
  -webkit-text-fill-color: var(--accent-primary);
  text-shadow: 0 0 30px rgba(0, 245, 160, 0.8);
  filter: drop-shadow(0 0 12px rgba(0, 245, 160, 0.6));
}

.logo__suffix {
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo__slash {
  color: rgba(0, 245, 160, 0.4);
  font-weight: 400;
  font-size: 0.55em;
  margin-left: 0.1em;
  align-self: center;
}

.logo__tagline {
  font-family: var(--font-mono);
  font-size: clamp(0.65rem, 1.5vw, 0.85rem);
  font-weight: 400;
  color: rgba(255, 255, 255, 0.35);
  margin: 0.6rem 0 0;
  letter-spacing: 0.05em;
  text-align: center;
}

.logo__tagline::before {
  content: '// ';
  color: rgba(0, 245, 160, 0.4);
}

/* ── Dock ─────────────────────────────────────────────────────────── */

.dock {
  position: relative;
  width: 100%;
  max-width: 28rem;
  margin-bottom: clamp(0.5rem, 7vh, 4rem);
}

/* ── Playlist ────────────────────────────────────────────────────── */

.list {
  position: absolute;
  bottom: calc(100% + 0.75rem);
  left: 0;
  right: 0;
  z-index: 5;
  border-radius: 14px;
  border: 1px solid var(--glass-line);
  background: rgba(8, 11, 20, 0.88);
  backdrop-filter: blur(28px) saturate(140%);
  -webkit-backdrop-filter: blur(28px) saturate(140%);
  box-shadow: var(--shadow-glass);
  overflow: hidden;

  opacity: 0;
  visibility: hidden;
  transform: translate3d(0, 10px, 0) scale(0.985);
  transform-origin: bottom center;
  transition:
    opacity var(--glide),
    transform var(--glide),
    visibility 0s linear 300ms;
}

.list.is-open {
  opacity: 1;
  visibility: visible;
  transform: none;
  transition:
    opacity var(--glide),
    transform 400ms var(--ease-settle),
    visibility 0s;
}

.list__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.65rem 1rem 0.5rem;
  border-bottom: 1px solid var(--glass-line);
}

.list__title {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--accent-primary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.list__count {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: rgba(255, 255, 255, 0.3);
}

.list ol {
  margin: 0;
  padding: 0.35rem;
  list-style: none;
  counter-reset: t;
  max-height: min(46dvh, 22rem);
  overflow-y: auto;
  overscroll-behavior: contain;
  scrollbar-width: thin;
  scrollbar-color: rgba(0, 245, 160, 0.2) transparent;
}

.list ol::-webkit-scrollbar { width: 4px; }
.list ol::-webkit-scrollbar-track { background: transparent; }
.list ol::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: rgba(0, 245, 160, 0.2);
}
.list ol::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 245, 160, 0.4);
}

.list li { counter-increment: t; }

.list button {
  width: 100%;
  display: flex;
  align-items: baseline;
  gap: 0.55rem;
  padding: 0.4rem 0.65rem;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: rgba(255, 255, 255, 0.65);
  font-family: var(--font-ui);
  font-size: 0.82rem;
  font-weight: 500;
  text-align: left;
  cursor: pointer;
  transition: background var(--swift), color var(--swift);
}

.list button::before {
  content: counter(t);
  flex: none;
  width: 1.4rem;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  color: rgba(255, 255, 255, 0.25);
  font-variant-numeric: tabular-nums;
}

.list button:hover {
  background: rgba(0, 245, 160, 0.08);
  color: #fff;
}

.list li.is-current button {
  background: rgba(0, 245, 160, 0.12);
  color: var(--accent-primary);
  font-weight: 600;
}

.list li.is-current button::before {
  color: var(--accent-primary);
}

.list .t-title {
  flex: 1;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.list .t-artist {
  font-size: 0.7rem;
  font-weight: 400;
  color: rgba(255, 255, 255, 0.35);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── Bumper ──────────────────────────────────────────────────────── */

.bumper {
  width: 100%;
  margin: 0 auto 0.6rem;
  padding: 0 0.5rem;
  text-align: center;
  user-select: none;
}

.bumper__text {
  font-family: var(--font-mono);
  font-size: clamp(0.62rem, 1.8vw, 0.78rem);
  font-weight: 400;
  line-height: 1.5;
  letter-spacing: 0.01em;
  color: rgba(255, 255, 255, 0.4);
  text-wrap: balance;
  transition: opacity 240ms ease;
}

.bumper__text.is-swapping { opacity: 0; }

.bumper__next {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  vertical-align: -0.22em;
  margin-left: 0.4em;
  width: 1.3rem;
  height: 1.3rem;
  padding: 0;
  border: none;
  border-radius: 50%;
  background: transparent;
  color: rgba(255, 255, 255, 0.25);
  cursor: pointer;
  transition: color var(--swift), background var(--swift), rotate 400ms var(--ease-settle);
}

.bumper__next:hover {
  color: var(--accent-primary);
  background: rgba(0, 245, 160, 0.1);
}

.bumper__next:active { rotate: 180deg; }

/* ── Player ──────────────────────────────────────────────────────── */

.player {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  padding: 0.45rem 0.85rem 0.45rem 0.45rem;
  border-radius: 999px;
  border: 1px solid var(--glass-line);
  background: rgba(8, 11, 20, 0.65);
  backdrop-filter: blur(32px) saturate(160%);
  -webkit-backdrop-filter: blur(32px) saturate(160%);
  box-shadow:
    var(--shadow-glass),
    inset 0 0 0 1px rgba(0, 245, 160, 0.05);
  transition: border-color var(--glide), box-shadow var(--glide);
}

.player.is-playing {
  border-color: rgba(0, 245, 160, 0.2);
  box-shadow:
    var(--shadow-glass),
    inset 0 0 0 1px rgba(0, 245, 160, 0.1),
    0 0 30px rgba(0, 245, 160, 0.06);
}

/* Disc (album art as vinyl record) */
.disc {
  position: relative;
  width: 3.2rem;
  height: 3.2rem;
  flex: none;
  transition: transform var(--glide);
}

.player.is-playing .disc { transform: scale(1.04); }

.disc__ring {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  overflow: hidden;
  box-shadow:
    0 4px 16px rgba(0, 0, 0, 0.5),
    0 0 0 1px rgba(0, 245, 160, 0.1);
  background: #111;
  animation: spin 10s linear infinite;
  animation-play-state: paused;
}

.player.is-playing .disc__ring {
  animation-play-state: running;
}

.disc__art {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.disc__art.is-letterboxed { transform: scale(1.38); }

.disc__hub {
  position: absolute;
  left: 50%; top: 50%;
  width: 0.45rem;
  height: 0.45rem;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.8);
  box-shadow: 0 0 0 2px rgba(0, 245, 160, 0.35);
}

@keyframes spin { to { transform: rotate(360deg); } }

/* Meta */
.meta {
  flex: 1;
  min-width: 0;
}

.meta__title, .meta__artist {
  transition: opacity 200ms ease;
}

.player.is-swapping .meta__title,
.player.is-swapping .meta__artist { opacity: 0; }

.meta__title {
  margin: 0;
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 0.82rem;
  line-height: 1.3;
  color: #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.meta__artist {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 400;
  line-height: 1.3;
  color: rgba(0, 245, 160, 0.65);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Seek bar */
.seek {
  position: relative;
  height: 10px;
  margin-top: 0.25rem;
  cursor: pointer;
  touch-action: none;
}

.seek__rail {
  position: absolute;
  inset-inline: 0;
  top: 50%;
  height: 2px;
  transform: translateY(-50%);
  border-radius: 999px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.12);
}

.seek__fill {
  height: 100%;
  width: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-secondary));
  transform: scaleX(0);
  transform-origin: left center;
  will-change: transform;
}

.seek__knob {
  position: absolute;
  top: 50%;
  left: 0;
  width: 9px;
  height: 9px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: var(--accent-primary);
  box-shadow: 0 0 8px rgba(0, 245, 160, 0.6);
  opacity: 0;
  transition: opacity var(--swift);
  will-change: transform;
}

.seek:hover .seek__knob,
.seek:focus-visible .seek__knob { opacity: 1; }

.time {
  margin-top: 0.05rem;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  font-weight: 400;
  font-variant-numeric: tabular-nums;
  color: rgba(255, 255, 255, 0.35);
}

/* ── Controls ────────────────────────────────────────────────────── */

.controls {
  display: flex;
  align-items: center;
  gap: 0.1rem;
  flex: none;
}

.btn {
  display: grid;
  place-items: center;
  width: 1.75rem;
  height: 1.75rem;
  border: none;
  border-radius: 50%;
  background: transparent;
  color: rgba(255, 255, 255, 0.55);
  cursor: pointer;
  transition: background var(--swift), color var(--swift), transform var(--swift);
}

.btn svg {
  width: 14px;
  height: 14px;
}

.btn:hover {
  background: var(--glass-hover);
  color: #fff;
}

.btn:active { transform: scale(0.9); }

.btn--play {
  width: 2.2rem;
  height: 2.2rem;
  background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
  color: #080b14;
  box-shadow: 0 4px 16px rgba(0, 245, 160, 0.35);
}

.btn--play svg {
  width: 16px;
  height: 16px;
}

.i-pause,
.player.is-playing .i-play { display: none; }
.player.is-playing .i-pause { display: block; }

.btn--play:hover {
  transform: scale(1.07);
  box-shadow: 0 6px 24px rgba(0, 245, 160, 0.5);
}

.btn--play:disabled {
  opacity: 0.4;
  cursor: default;
  transform: none;
  box-shadow: none;
}

.btn--toggle.is-on {
  color: var(--accent-primary);
  background: rgba(0, 245, 160, 0.12);
}

/* ── Focus ───────────────────────────────────────────────────────── */

:focus-visible {
  outline: 2px solid var(--accent-primary);
  outline-offset: 3px;
  border-radius: 6px;
}

/* ── Small screens ───────────────────────────────────────────────── */

@media (max-width: 640px) {
  :root { --logo-top: 18vh; }

  .terminal-badge { display: none; }

  .player {
    flex-wrap: wrap;
    padding: 0.75rem;
    border-radius: 1.5rem;
    row-gap: 0.55rem;
  }

  .controls {
    width: 100%;
    justify-content: center;
    gap: 0.3rem;
  }

  .disc {
    width: 3.6rem;
    height: 3.6rem;
  }
}

/* ── Reduced motion ──────────────────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .disc__ring,
  .status-dot__ring { animation: none !important; }

  .player.is-playing .disc { transform: none; }
}