/* ── KenKenetic · AI — 3D time corridor ─────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
:root {
  --bg:    #060809;
  --fg:    #eef4f2;
  --dim:   rgba(238,244,242,0.5);
  --teal:  #14c8b4;
  --teal-soft: rgba(20,200,180,0.16);
  --font:  'Helvetica Neue', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
}
html, body { height: 100%; }
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  overflow: hidden;
  overscroll-behavior: none;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}

/* Atmosphere */
.glow {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(ellipse 60% 45% at 50% 38%, var(--teal-soft), transparent 70%),
    radial-gradient(ellipse 90% 60% at 50% 120%, rgba(10,40,40,0.5), transparent 70%);
}

/* Home logo — aligned with the Filters button + hint on one line */
.home { position: fixed; top: 2.15rem; left: 1.5rem; z-index: 40; transform: translateY(-50%); display: flex; }
.home img { height: 24px; filter: invert(1); opacity: 0.85; transition: opacity .2s; }
.home:hover img { opacity: 1; }

/* ── Filters ────────────────────────────────────────────────── */
.filters-btn {
  position: fixed; top: 2.15rem; right: 1.4rem; z-index: 40; transform: translateY(-50%);
  font: inherit; font-size: 0.64rem; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--fg); background: rgba(255,255,255,0.05); cursor: pointer;
  border: 1px solid rgba(238,244,242,0.16); border-radius: 999px;
  padding: 0.55rem 0.95rem; display: inline-flex; align-items: center; gap: 0.45rem;
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  transition: border-color .2s, background .2s;
}
.filters-btn:hover { border-color: var(--teal); background: rgba(20,200,180,0.10); }
.fb-icon { font-size: 0.9rem; line-height: 1; }
.fb-count {
  min-width: 16px; height: 16px; padding: 0 5px; border-radius: 999px;
  background: var(--teal); color: #04201d; font-size: 0.58rem; letter-spacing: 0;
  display: none; align-items: center; justify-content: center;
}
.fb-count.on { display: inline-flex; }

.filters {
  position: fixed; top: 3.5rem; right: 1.4rem; z-index: 39; width: 280px;
  background: rgba(10,14,15,0.86); border: 1px solid rgba(238,244,242,0.12);
  border-radius: 14px; padding: 1.9rem 1.3rem 1.1rem;
  -webkit-backdrop-filter: blur(20px); backdrop-filter: blur(20px);
  box-shadow: 0 24px 60px rgba(0,0,0,0.5);
  display: flex; flex-direction: column; gap: 1rem;
}
.filters[hidden] { display: none; }
.f-close {
  position: absolute; top: 0.85rem; right: 0.85rem; z-index: 1;
  width: 26px; height: 26px; border-radius: 50%; cursor: pointer;
  border: 1px solid rgba(238,244,242,0.16); background: rgba(255,255,255,0.05); color: var(--fg);
  font-size: 0.66rem; display: flex; align-items: center; justify-content: center;
  transition: border-color .2s, background .2s;
}
.f-close:hover { border-color: var(--teal); background: rgba(20,200,180,0.12); }
.f-row { display: flex; flex-direction: column; gap: 0.45rem; }
.f-row label {
  font-size: 0.6rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--dim);
  display: flex; justify-content: space-between; align-items: baseline;
}
.f-range-val { color: var(--teal); letter-spacing: 0.04em; text-transform: none; font-size: 0.62rem; }
.f-row input[type="search"], .f-row select {
  font: inherit; font-size: 0.8rem; color: var(--fg);
  background: rgba(255,255,255,0.05); border: 1px solid rgba(238,244,242,0.14);
  border-radius: 8px; padding: 0.55rem 0.7rem; width: 100%; outline: none;
  transition: border-color .2s;
}
.f-row input[type="search"]:focus, .f-row select:focus { border-color: var(--teal); }
.f-row select { appearance: none; cursor: pointer; }
.f-row option { background: #0b0f10; color: var(--fg); }

/* Dual range slider */
.f-range { position: relative; height: 26px; }
.f-range input[type="range"] {
  position: absolute; top: 0; left: 0; width: 100%; height: 26px; margin: 0;
  -webkit-appearance: none; appearance: none; background: none; pointer-events: none;
}
.f-range::before {
  content: ''; position: absolute; left: 0; right: 0; top: 12px; height: 3px;
  background: rgba(238,244,242,0.14); border-radius: 3px;
}
.f-range input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none; pointer-events: auto;
  width: 16px; height: 16px; border-radius: 50%; background: var(--teal);
  border: 2px solid #0b0f10; cursor: pointer; margin-top: 0;
}
.f-range input[type="range"]::-moz-range-thumb {
  pointer-events: auto; width: 16px; height: 16px; border-radius: 50%;
  background: var(--teal); border: 2px solid #0b0f10; cursor: pointer;
}
.f-foot { display: flex; align-items: center; justify-content: space-between; padding-top: 0.2rem; }
.f-count { font-size: 0.62rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--dim); }
.f-clear {
  font: inherit; font-size: 0.62rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--fg); background: none; border: none; cursor: pointer; opacity: 0.7;
  transition: opacity .2s, color .2s;
}
.f-clear:hover { opacity: 1; color: var(--teal); }

@media (max-width: 720px) {
  .filters { width: calc(100vw - 2.2rem); }
}

/* ── 3D scene ───────────────────────────────────────────────── */
.scene {
  position: fixed; inset: 0; z-index: 5;
  perspective: 1150px;
  perspective-origin: 50% 40%;
  overflow: hidden;
}
/* The light "road" receding to the horizon (decorative).
   Triangle road shape (bright toward the viewer), edges softened with a RADIAL
   MASK rather than blur — so nothing gets clipped by the scene's overflow
   (that clip was the hard horizontal line), and the monotonic fill has no
   bright ridge either. */
.scene::before {
  content: '';
  position: absolute; left: 50%; bottom: 0; transform: translateX(-50%);
  width: 86vw; height: 74vh; z-index: 1; pointer-events: none;
  background: linear-gradient(to bottom,
    rgba(180,230,225,0) 0%,
    rgba(168,224,218,0.05) 50%,
    rgba(180,230,225,0.14) 100%);
  clip-path: polygon(49% 0, 51% 0, 100% 100%, 0 100%);
  -webkit-mask-image: radial-gradient(128% 104% at 50% 100%, #000 42%, transparent 90%);
  mask-image: radial-gradient(128% 104% at 50% 100%, #000 42%, transparent 90%);
}

.corridor {
  position: absolute; inset: 0; z-index: 2;
  transform-style: preserve-3d;
}

/* Each image card */
.card {
  position: absolute; left: 50%; top: 49%;
  width: var(--w, 28vmin);
  border: none; padding: 0; background: none; cursor: pointer;
  transform: translate(-50%, -50%);
  transform-style: preserve-3d;
  will-change: transform, opacity;
  backface-visibility: hidden;
  display: none;
}
.card-img {
  width: 100%;
  aspect-ratio: var(--ar, 1 / 1);
  background-size: cover;
  background-position: center;
  border-radius: 8px;
  box-shadow: 0 24px 60px rgba(0,0,0,0.55), 0 2px 10px rgba(0,0,0,0.4);
  outline: 1px solid rgba(255,255,255,0.06);
  outline-offset: -1px;
  transition: box-shadow .25s ease;
}
.card.is-front .card-img {
  box-shadow: 0 30px 80px rgba(0,0,0,0.6), 0 0 0 1px var(--teal-soft), 0 0 40px rgba(20,200,180,0.18);
}
.card:hover .card-img { box-shadow: 0 30px 80px rgba(0,0,0,0.6), 0 0 0 2px var(--teal); }
/* placeholder tiles show their sample label */
.card-img[data-label]::after {
  content: attr(data-label);
  position: absolute; inset: 0; display: flex; align-items: center; justify-content: center;
  font-size: 0.8rem; letter-spacing: 0.14em; text-transform: uppercase;
  color: rgba(255,255,255,0.65);
}
.card-img { position: relative; }

/* ── HUD: time label ────────────────────────────────────────── */
.hud {
  position: fixed; left: 0; right: 0; bottom: 4vh; z-index: 20;
  display: flex; flex-direction: column; align-items: center; gap: 0.2rem;
  pointer-events: none; text-align: center;
}
/* Label legibility comes from its own text-shadow (no scrim overlay, so the
   road stays clean underneath). */
.t-num, .t-unit, .t-date { text-shadow: 0 1px 3px rgba(0,0,0,0.85), 0 2px 24px rgba(0,0,0,0.6); }
.t-num {
  font-size: clamp(2.6rem, 7vw, 5rem); font-weight: 300; line-height: 0.95;
  letter-spacing: -0.02em;
}
.t-unit {
  font-size: 0.72rem; letter-spacing: 0.34em; text-transform: uppercase; color: var(--dim);
}
.t-date {
  margin-top: 0.5rem; font-size: 0.66rem; letter-spacing: 0.22em;
  text-transform: uppercase; color: var(--teal);
}

/* ── Controls ───────────────────────────────────────────────── */
.controls { position: fixed; bottom: 4vh; left: 1.5rem; z-index: 30; }
.ctrl-dir {
  font: inherit; font-size: 0.64rem; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--fg); background: rgba(255,255,255,0.05); cursor: pointer;
  border: 1px solid rgba(238,244,242,0.16); border-radius: 999px;
  padding: 0.7rem 1.1rem; display: inline-flex; align-items: center; gap: 0.5rem;
  transition: border-color .2s, background .2s;
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
}
.ctrl-dir:hover { border-color: var(--teal); background: rgba(20,200,180,0.10); }
.ctrl-dir .arrow { color: var(--teal); font-size: 0.9rem; }

/* Up / down navigation (essential on touch) */
.nav {
  position: fixed; right: 1.3rem; bottom: 4vh; z-index: 30;
  display: flex; flex-direction: column; gap: 0.5rem;
}
.navbtn {
  width: 46px; height: 46px; border-radius: 50%; cursor: pointer;
  border: 1px solid rgba(238,244,242,0.18); background: rgba(255,255,255,0.05);
  color: var(--fg); font-size: 1rem; line-height: 1;
  display: flex; align-items: center; justify-content: center;
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  transition: border-color .2s, background .2s, transform .1s;
}
.navbtn:hover { border-color: var(--teal); background: rgba(20,200,180,0.12); }
.navbtn:active { transform: scale(0.92); }

.hint {
  position: fixed; left: 50%; top: 2.15rem; transform: translate(-50%, -50%); z-index: 20;
  font-size: 0.62rem; letter-spacing: 0.24em; text-transform: uppercase; color: var(--dim);
  transition: opacity .6s ease; pointer-events: none;
}
.hint.gone { opacity: 0; }

.loading {
  position: fixed; inset: 0; z-index: 50; display: flex; align-items: center; justify-content: center;
  background: var(--bg); color: var(--dim);
  font-size: 0.7rem; letter-spacing: 0.3em; text-transform: uppercase;
  transition: opacity .5s ease;
}
.loading.gone { opacity: 0; pointer-events: none; }

/* ── Lightbox ───────────────────────────────────────────────── */
.lightbox {
  position: fixed; inset: 0; z-index: 60;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 1.2rem;
  background: rgba(4,6,7,0.92);
  -webkit-backdrop-filter: blur(14px); backdrop-filter: blur(14px);
  opacity: 0; pointer-events: none; transition: opacity .3s ease;
  padding: 5vh 4vw;
}
.lightbox.open { opacity: 1; pointer-events: auto; }
.lb-media {
  max-width: min(88vw, 1100px); max-height: 76vh;
  aspect-ratio: var(--ar, 1 / 1);
  width: auto; height: 76vh;
  background-size: contain; background-position: center; background-repeat: no-repeat;
  border-radius: 8px;
  box-shadow: 0 40px 120px rgba(0,0,0,0.7);
  transform: scale(0.96); transition: transform .3s cubic-bezier(0.16,1,0.3,1);
}
.lightbox.open .lb-media { transform: scale(1); }
.lb-cap { max-width: min(88vw, 760px); text-align: center; }
.lb-prompt { font-size: 0.82rem; line-height: 1.6; color: var(--fg); opacity: 0.9; }
.lb-date { margin-top: 0.5rem; font-size: 0.64rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--teal); }
.lb-close {
  position: fixed; top: 1.3rem; right: 1.4rem; z-index: 61;
  width: 44px; height: 44px; border-radius: 50%; cursor: pointer;
  border: 1px solid rgba(238,244,242,0.2); background: rgba(255,255,255,0.06); color: var(--fg);
  font-size: 1rem; display: flex; align-items: center; justify-content: center;
  transition: border-color .2s, background .2s;
}
.lb-close:hover { border-color: var(--teal); background: rgba(20,200,180,0.12); }

.lb-nav {
  position: fixed; top: 50%; transform: translateY(-50%); z-index: 61;
  width: 52px; height: 52px; border-radius: 50%; cursor: pointer;
  border: 1px solid rgba(238,244,242,0.2); background: rgba(255,255,255,0.06); color: var(--fg);
  font-size: 1.6rem; line-height: 1; display: flex; align-items: center; justify-content: center;
  -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px);
  transition: border-color .2s, background .2s, opacity .2s;
}
.lb-nav:hover { border-color: var(--teal); background: rgba(20,200,180,0.12); }
.lb-prev { left: 1.6rem; padding-right: 3px; }
.lb-next { right: 1.6rem; padding-left: 3px; }
.lb-nav[disabled] { opacity: 0.25; pointer-events: none; }

/* ── Mobile ─────────────────────────────────────────────────── */
@media (max-width: 720px) {
  .card { width: var(--w, 44vmin); }
  .controls { top: auto; bottom: 4vh; left: 1.1rem; right: auto; transform: none; }
  .nav { right: 1.1rem; }
  .hud { bottom: 12vh; }
  .lb-media { height: auto; max-height: 66vh; max-width: 90vw; width: 90vw; }
}

/* ── Music player — launcher + centered pop-out modal ───────── */
.player[hidden] { display: none; }

/* Launcher (floating equalizer button) */
.pl-fab {
  position: fixed; top: 3.6rem; left: 50%; transform: translateX(-50%); z-index: 41;
  width: 42px; height: 42px; border-radius: 50%; cursor: pointer;
  border: 1px solid rgba(238,244,242,0.16); background: rgba(10,14,15,0.7); color: var(--fg);
  display: inline-flex; align-items: center; justify-content: center;
  -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px);
  box-shadow: 0 12px 34px rgba(0,0,0,0.42);
  transition: border-color .2s, background .2s, transform .1s, box-shadow .3s;
}
.pl-fab:hover { border-color: var(--teal); background: rgba(20,200,180,0.12); }
.pl-fab:active { transform: translateX(-50%) scale(0.92); }
.player.is-playing .pl-fab { border-color: var(--teal); box-shadow: 0 0 0 1px var(--teal-soft), 0 0 26px var(--teal-soft), 0 12px 34px rgba(0,0,0,0.42); }

.eq { display: flex; align-items: flex-end; gap: 2.5px; height: 15px; }
.eq i { width: 3px; height: 6px; background: var(--teal); border-radius: 1px; }
.eq i:nth-child(1) { height: 8px; }
.eq i:nth-child(2) { height: 14px; }
.eq i:nth-child(3) { height: 6px; }
.player.is-playing .eq i { animation: eqbar .9s ease-in-out infinite; }
.player.is-playing .eq i:nth-child(2) { animation-delay: .25s; }
.player.is-playing .eq i:nth-child(3) { animation-delay: .5s; }
@keyframes eqbar { 0%,100% { height: 4px; } 50% { height: 15px; } }

/* Modal overlay */
.pl-modal {
  position: fixed; inset: 0; z-index: 55;
  display: flex; align-items: center; justify-content: center; padding: 5vh 5vw;
  background: rgba(4,6,7,0.72);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  opacity: 0; pointer-events: none; transition: opacity .22s ease;
}
.pl-modal[hidden] { display: none; }
.pl-modal.open { opacity: 1; pointer-events: auto; }

.pl-card {
  position: relative; width: 340px; max-width: 92vw; max-height: 86vh;
  display: flex; flex-direction: column;
  background: rgba(12,16,17,0.97); border: 1px solid rgba(238,244,242,0.12); border-radius: 18px;
  padding: 1.7rem 1.2rem 1rem;
  box-shadow: 0 40px 120px rgba(0,0,0,0.6), 0 0 0 1px var(--teal-soft);
  transform: scale(0.94); opacity: 0;
  transition: transform .28s cubic-bezier(0.16,1,0.3,1), opacity .28s ease;
}
.pl-modal.open .pl-card { transform: scale(1); opacity: 1; }
.pl-x {
  position: absolute; top: 0.85rem; right: 0.85rem; width: 30px; height: 30px; border-radius: 50%;
  border: 1px solid rgba(238,244,242,0.16); background: rgba(255,255,255,0.05); color: var(--fg);
  cursor: pointer; font-size: 0.72rem; display: flex; align-items: center; justify-content: center;
  transition: border-color .2s, background .2s;
}
.pl-x:hover { border-color: var(--teal); background: rgba(20,200,180,0.12); }
.pl-eyebrow { font-size: 0.55rem; letter-spacing: 0.24em; text-transform: uppercase; color: var(--dim); }
.pl-now { margin: 0.7rem 0 1.1rem; min-height: 2.4rem; }
.pl-title { display: block; font-size: 1.05rem; font-weight: 400; color: var(--fg); line-height: 1.25; }
.pl-artist { display: block; margin-top: 0.25rem; font-size: 0.72rem; letter-spacing: 0.04em; color: var(--dim); }

.pl-ctrls {
  display: flex; align-items: center; justify-content: center; gap: 0.55rem;
  padding-bottom: 0.9rem;
}
.pl-btn {
  width: 42px; height: 42px; flex: none; border: 1px solid rgba(238,244,242,0.14); border-radius: 50%;
  background: rgba(255,255,255,0.04); color: var(--fg); cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  transition: background .18s, color .18s, border-color .18s, transform .08s;
}
.pl-btn:hover { border-color: var(--teal); color: var(--teal); background: rgba(20,200,180,0.12); }
.pl-btn:active { transform: scale(0.9); }
.pl-play-btn { width: 54px; height: 54px; background: var(--teal); border-color: var(--teal); color: #04201d; }
.pl-play-btn:hover { color: #04201d; background: var(--teal); border-color: var(--teal); filter: brightness(1.08); }
.player svg.ic { width: 17px; height: 17px; fill: currentColor; display: block; }
.pl-play-btn svg.ic { width: 20px; height: 20px; }
.player svg .wave { fill: none; stroke: currentColor; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }
/* icon swaps (svg.ic specificity must beat `.player svg.ic { display:block }`) */
.player svg.ic-pause,
.player.is-playing svg.ic-play { display: none; }
.player.is-playing svg.ic-pause { display: block; }
.player svg.ic-mute,
.player.is-muted svg.ic-vol { display: none; }
.player.is-muted svg.ic-mute { display: block; }
.player.is-muted #pl-mute { border-color: var(--teal); color: var(--teal); }

/* Volume slider */
.pl-vol {
  display: flex; align-items: center; gap: 0.6rem;
  padding: 0 0.3rem 1rem; border-bottom: 1px solid rgba(238,244,242,0.08);
}
.pl-vol-ic { width: 15px; height: 15px; flex: none; fill: var(--dim); }
.pl-vol-range {
  -webkit-appearance: none; appearance: none; width: 100%; height: 4px; border-radius: 3px; margin: 0;
  cursor: pointer; outline: none;
  background: linear-gradient(to right, var(--teal) var(--vp, 100%), rgba(238,244,242,0.16) var(--vp, 100%));
}
.pl-vol-range::-webkit-slider-thumb {
  -webkit-appearance: none; width: 13px; height: 13px; border-radius: 50%;
  background: var(--teal); border: 2px solid #0b0f10; cursor: pointer;
}
.pl-vol-range::-moz-range-thumb {
  width: 13px; height: 13px; border-radius: 50%; background: var(--teal); border: 2px solid #0b0f10; cursor: pointer;
}

/* Track list */
.pl-tracks { list-style: none; margin-top: 0.7rem; overflow-y: auto; -webkit-overflow-scrolling: touch; }
.pl-track {
  width: 100%; text-align: left; background: transparent; border: 0; cursor: pointer;
  display: flex; flex-direction: column; gap: 1px; padding: 0.5rem 0.6rem; border-radius: 9px;
  color: var(--fg); transition: background .15s;
}
.pl-track:hover { background: rgba(255,255,255,0.05); }
.pl-tracks li.is-active .pl-track { background: rgba(20,200,180,0.14); }
.pl-t-title { font-size: 0.8rem; }
.pl-tracks li.is-active .pl-t-title { color: var(--teal); }
.pl-t-artist { font-size: 0.6rem; letter-spacing: 0.03em; color: var(--dim); }

/* Mobile: launcher tucks in, modal becomes a bottom sheet */
@media (max-width: 640px) {
  .pl-fab { top: 3.3rem; }   /* stays centered (base left:50% + translateX) */
  .pl-modal { align-items: flex-end; padding: 0; }
  .pl-card {
    width: 100%; max-width: 100%; max-height: 82vh;
    border-radius: 20px 20px 0 0; padding: 1.6rem 1.15rem calc(1.1rem + env(safe-area-inset-bottom));
    transform: translateY(18px);
  }
  .pl-modal.open .pl-card { transform: translateY(0); }
  .pl-btn { width: 46px; height: 46px; }
  .pl-play-btn { width: 58px; height: 58px; }
  .pl-tracks { max-height: 42vh; }
}