@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@500;700;900&family=Share+Tech+Mono&display=swap');

:root {
  --bg: #0a0a0a;
  --bg-soft: #1a1a1a;
  --panel: rgba(20, 20, 20, 0.84);
  --panel-strong: rgba(30, 30, 30, 0.94);
  --border: rgba(150, 150, 150, 0.3);
  --text: #e0e0e0;
  --dim: #888888;
  --acc1: #a0a0a0;
  --acc2: #cccccc;
  --acc3: #4d4d4d;
  --glow: rgba(200, 200, 200, 0.2);
  --glow-hi: rgba(255, 255, 255, 0.4);
  --flash: rgba(255, 255, 255, 0.1);
  --grain: 0.16;
  --canvas-opacity: 0.72;
}

body[data-theme="default"] {
  --bg: #0a0a0a;
  --bg-soft: #1a1a1a;
  --panel: rgba(20, 20, 20, 0.84);
  --panel-strong: rgba(30, 30, 30, 0.94);
  --border: rgba(150, 150, 150, 0.3);
  --text: #e0e0e0;
  --dim: #888888;
  --acc1: #a0a0a0;
  --acc2: #cccccc;
  --acc3: #4d4d4d;
  --glow: rgba(200, 200, 200, 0.2);
  --glow-hi: rgba(255, 255, 255, 0.4);
  --flash: rgba(255, 255, 255, 0.1);
  --grain: 0.16;
}

body[data-theme="classic"] {
  --bg: #1a1108;
  --bg-soft: #2b1b10;
  --panel: rgba(30, 18, 10, 0.84);
  --panel-strong: rgba(42, 24, 12, 0.94);
  --border: rgba(206, 144, 77, 0.42);
  --text: #f8e2b1;
  --dim: #9c7a52;
  --acc1: #f0a24d;
  --acc2: #ffcf6b;
  --acc3: #6a4327;
  --glow: rgba(240, 162, 77, 0.28);
  --glow-hi: rgba(255, 211, 126, 0.55);
  --flash: rgba(255, 196, 120, 0.16);
  --grain: 0.16;
}

body[data-theme="bw"] {
  --bg: #050505;
  --bg-soft: #161616;
  --panel: rgba(18, 18, 18, 0.84);
  --panel-strong: rgba(24, 24, 24, 0.95);
  --border: rgba(210, 210, 210, 0.18);
  --text: #ededed;
  --dim: #777777;
  --acc1: #ffffff;
  --acc2: #bdbdbd;
  --acc3: #3a3a3a;
  --glow: rgba(255, 255, 255, 0.14);
  --glow-hi: rgba(255, 255, 255, 0.28);
  --flash: rgba(255, 255, 255, 0.12);
  --grain: 0.26;
}

body[data-theme="rock"] {
  --bg: #09040f;
  --bg-soft: #15091f;
  --panel: rgba(14, 8, 24, 0.86);
  --panel-strong: rgba(21, 10, 34, 0.96);
  --border: rgba(157, 70, 255, 0.34);
  --text: #f0d5ff;
  --dim: #8c6db0;
  --acc1: #ff416d;
  --acc2: #5f9cff;
  --acc3: #b835ff;
  --glow: rgba(170, 75, 255, 0.34);
  --glow-hi: rgba(255, 78, 126, 0.52);
  --flash: rgba(255, 74, 132, 0.18);
  --grain: 0.08;
}

body[data-theme="memory"] {
  --bg: #08111d;
  --bg-soft: #11223d;
  --panel: rgba(9, 18, 33, 0.82);
  --panel-strong: rgba(12, 24, 40, 0.94);
  --border: rgba(90, 165, 222, 0.34);
  --text: #d7ebff;
  --dim: #6f93b4;
  --acc1: #5dc7ff;
  --acc2: #9a89ff;
  --acc3: #204360;
  --glow: rgba(93, 199, 255, 0.24);
  --glow-hi: rgba(165, 199, 255, 0.42);
  --flash: rgba(120, 200, 255, 0.1);
  --grain: 0.06;
}

body[data-theme="chill"] {
  --bg: #0a0514;
  --bg-soft: #170b29;
  --panel: rgba(18, 10, 32, 0.7);
  --panel-strong: rgba(28, 16, 46, 0.85);
  --border: rgba(160, 100, 255, 0.3);
  --text: #eadeff;
  --dim: #a88cb4;
  --acc1: #a975fa;
  --acc2: #6b5bdb;
  --acc3: #4b2b8b;
  --glow: rgba(169, 117, 250, 0.3);
  --glow-hi: rgba(169, 117, 250, 0.5);
  --flash: rgba(77, 171, 247, 0.15);
  --grain: 0.1;
}

body[data-theme="study"] {
  --bg: #1a1a00;
  --bg-soft: #2a2a00;
  --panel: rgba(55, 55, 0, 0.75);
  --panel-strong: rgba(75, 75, 0, 0.9);
  --border: rgba(255, 235, 59, 0.35);
  --text: #fffbe6;
  --dim: #d4c88e;
  --acc1: #ffeb3b;
  --acc2: #fff176;
  --acc3: #827717;
  --glow: rgba(255, 235, 59, 0.25);
  --glow-hi: rgba(255, 235, 59, 0.5);
  --flash: rgba(255, 235, 59, 0.15);
  --grain: 0.1;
}

body[data-theme="phonk"] {
  --bg: #140000;
  --bg-soft: #240000;
  --panel: rgba(20, 0, 0, 0.8);
  --panel-strong: rgba(30, 0, 0, 0.9);
  --border: rgba(255, 0, 0, 0.4);
  --text: #ffcccc;
  --dim: #cc5555;
  --acc1: #ff0000;
  --acc2: #aa00ff;
  --acc3: #660000;
  --glow: rgba(255, 0, 0, 0.4);
  --glow-hi: rgba(255, 0, 255, 0.6);
  --flash: rgba(255, 0, 0, 0.2);
  --grain: 0.2;
}

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

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: 'Share Tech Mono', monospace;
  transition: background 0.5s ease, color 0.5s ease;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 4;
  background-image:
    radial-gradient(circle at 20% 20%, rgba(255, 255, 255, calc(var(--grain) * 0.16)) 0, transparent 28%),
    radial-gradient(circle at 80% 30%, rgba(255, 255, 255, calc(var(--grain) * 0.14)) 0, transparent 26%),
    radial-gradient(circle at 35% 80%, rgba(255, 255, 255, calc(var(--grain) * 0.14)) 0, transparent 24%);
  mix-blend-mode: soft-light;
  opacity: 0.75;
}

body.theme-transitioning #viz-canvas,
body.theme-transitioning #bg-canvas {
  filter: blur(1px) saturate(1.08);
}

#bg-canvas,
#viz-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
  transition: filter 0.5s ease, opacity 0.5s ease;
}

#bg-canvas {
  z-index: 1;
  pointer-events: none;
  opacity: var(--canvas-opacity);
}

#viz-canvas {
  z-index: 2;
}

#three-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 3;
  pointer-events: none;
  display: none;
}

#beat-flash {
  position: fixed;
  inset: 0;
  z-index: 5;
  pointer-events: none;
  opacity: 0;
  background: radial-gradient(circle at center, var(--flash) 0%, transparent 62%);
  transition: opacity 0.08s ease-out;
}

#beat-flash.flash {
  opacity: 1;
}

#app-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 20;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 16px 24px;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.55), transparent);
  pointer-events: none;
}

#logo {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(18px, 4vw, 28px);
  font-weight: 900;
  letter-spacing: 0.22em;
  pointer-events: auto;
  text-shadow: 0 0 24px var(--glow);
}

#logo span {
  display: inline-block;
  transition: color 0.5s ease, text-shadow 0.5s ease;
}

.logo-s { color: var(--acc2); }
.logo-p { color: var(--acc1); }
.logo-e { color: color-mix(in srgb, var(--acc1) 65%, #ff5c4d 35%); }
.logo-c { color: color-mix(in srgb, var(--acc1) 40%, var(--acc2) 60%); }
.logo-t { color: var(--acc2); }
.logo-r { color: var(--text); }

#header-meta {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  text-align: center;
  pointer-events: none;
}

#theme-name {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(12px, 2vw, 15px);
  font-weight: 700;
  letter-spacing: 0.22em;
}

#theme-tagline {
  margin-top: 4px;
  font-size: 10px;
  letter-spacing: 0.18em;
  color: var(--dim);
  text-transform: uppercase;
}

#header-controls {
  display: flex;
  gap: 10px;
  pointer-events: auto;
}

#header-controls button,
#mini-header-btns button {
  border: 1px solid var(--border);
  background: var(--panel);
  color: var(--text);
  border-radius: 7px;
  cursor: pointer;
  transition: border-color 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, transform 0.25s ease;
}

#header-controls button {
  min-width: 58px;
  padding: 7px 10px;
  font-size: 11px;
  letter-spacing: 0.08em;
}

#header-controls button:hover,
#mini-header-btns button:hover {
  border-color: var(--acc1);
  background: color-mix(in srgb, var(--panel) 70%, var(--acc1) 12%);
  box-shadow: 0 0 14px var(--glow);
  transform: translateY(-1px);
}

#header-controls button:disabled {
  opacity: 0.35;
  cursor: default;
  box-shadow: none;
  transform: none;
}

#source-badge,
#file-player,
#mini-overlay,
#control-panel {
  background: var(--panel);
  border: 1px solid var(--border);
  box-shadow: 0 0 28px rgba(0, 0, 0, 0.35), 0 0 30px var(--glow);
  transition: background 0.45s ease, border-color 0.45s ease, box-shadow 0.45s ease, color 0.45s ease;
}

#source-badge {
  position: fixed;
  top: 72px;
  left: 24px;
  z-index: 20;
  display: flex;
  align-items: center;
  gap: 8px;
  border-radius: 999px;
  padding: 6px 14px;
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--acc1);
  backdrop-filter: blur(12px);
}

#source-badge.hidden {
  opacity: 0;
  pointer-events: none;
  transform: translateY(-8px) scale(0.96);
}

#file-player {
  position: fixed;
  top: 76px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 20;
  width: min(420px, 92vw);
  padding: 12px 16px;
  border-radius: 14px;
  backdrop-filter: blur(22px);
}

#file-player.hidden {
  opacity: 0;
  pointer-events: none;
  transform: translateX(-50%) translateY(-12px);
}

#file-player-name {
  color: var(--acc1);
  font-size: 11px;
  letter-spacing: 0.08em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

#file-player-controls {
  margin-top: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

#fp-playpause {
  min-width: 62px;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--acc1);
  background: color-mix(in srgb, var(--panel) 72%, var(--acc1) 12%);
  color: var(--acc1);
  cursor: pointer;
}

#fp-progress-wrap {
  flex: 1;
  height: 6px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  overflow: hidden;
  cursor: pointer;
}

#fp-progress-bar,
#energy-fill {
  background: linear-gradient(180deg, var(--acc2), var(--acc1));
  box-shadow: 0 0 18px var(--glow-hi);
}

#fp-progress-bar {
  width: 0%;
  height: 100%;
}

#fp-time {
  min-width: 92px;
  text-align: right;
  color: var(--dim);
  font-size: 10px;
}

#energy-meter {
  position: fixed;
  top: 50%;
  right: 22px;
  transform: translateY(-50%);
  z-index: 20;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

#energy-label {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  font-size: 9px;
  color: var(--dim);
  letter-spacing: 0.2em;
}

#energy-track {
  width: 8px;
  height: 168px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.04);
  display: flex;
  align-items: flex-end;
}

#energy-fill {
  width: 100%;
  height: 0%;
  border-radius: inherit;
  transition: height 0.06s ease;
}

#control-panel {
  position: fixed;
  left: 50%;
  bottom: 0;
  z-index: 20;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 20px;
  width: min(96vw, 1180px);
  transform: translateX(-50%);
  padding: 18px 24px 20px;
  border-bottom: 0;
  border-radius: 18px 18px 0 0;
  backdrop-filter: blur(26px);
}

#control-panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 8%;
  right: 8%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--acc2), var(--acc1), transparent);
  opacity: 0.7;
}

#start-section {
  display: flex;
  align-items: center;
}

#btn-start {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 18px;
  border: 1px solid var(--acc1);
  border-radius: 10px;
  background: color-mix(in srgb, var(--panel) 72%, var(--acc1) 8%);
  color: var(--acc1);
  font-family: 'Orbitron', sans-serif;
  font-size: 12px;
  letter-spacing: 0.12em;
  cursor: pointer;
  box-shadow: 0 0 18px var(--glow);
  transition: border-color 0.25s ease, background 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
}

#btn-start:hover {
  transform: translateY(-1px);
  box-shadow: 0 0 26px var(--glow-hi);
}

#btn-start.active {
  color: var(--text);
  border-color: var(--acc2);
  background: color-mix(in srgb, var(--panel) 58%, var(--acc1) 18%);
}

.btn-icon {
  font-size: 10px;
}

.control-group {
  display: flex;
  flex-direction: column;
  gap: 7px;
  min-width: 0;
}

.control-label {
  font-size: 9px;
  letter-spacing: 0.2em;
  color: var(--dim);
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.source-btn,
.mode-btn,
.theme-btn {
  padding: 6px 11px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--dim);
  cursor: pointer;
  transition: border-color 0.2s ease, color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.source-btn,
.mode-btn,
.theme-btn,
#fp-playpause,
.toggle-label {
  font-family: 'Orbitron', sans-serif;
  font-size: 9px;
  letter-spacing: 0.1em;
}

.source-btn:hover,
.mode-btn:hover,
.theme-btn:hover {
  border-color: var(--acc1);
  color: var(--acc1);
  background: color-mix(in srgb, var(--panel) 72%, var(--acc1) 9%);
}

.source-btn.active,
.mode-btn.active,
.theme-btn.active {
  color: var(--acc1);
  border-color: var(--acc1);
  background: color-mix(in srgb, var(--panel) 64%, var(--acc1) 14%);
  box-shadow: 0 0 14px var(--glow);
}

#sensitivity-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 122px;
  height: 4px;
  border-radius: 999px;
  outline: none;
  cursor: pointer;
  background: linear-gradient(90deg, var(--acc2), var(--acc1));
}

#sensitivity-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--text);
  box-shadow: 0 0 12px var(--glow-hi);
}

.toggle-row {
  flex-direction: row;
  align-items: center;
  gap: 14px;
}

.toggle-label {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--dim);
  cursor: pointer;
  user-select: none;
}

.toggle-label input {
  display: none;
}

.toggle-track {
  position: relative;
  width: 34px;
  height: 18px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  transition: background 0.25s ease, box-shadow 0.25s ease;
}

.toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: #fff;
  transition: transform 0.25s ease;
}

.toggle-label input:checked + .toggle-track {
  background: var(--acc1);
  box-shadow: 0 0 12px var(--glow);
}

.toggle-label input:checked + .toggle-track .toggle-thumb {
  transform: translateX(16px);
}

#pause-overlay {
  position: fixed;
  inset: 0;
  z-index: 11;
  display: none;
  align-items: center;
  justify-content: center;
  pointer-events: none;
}

#pause-overlay.visible {
  display: flex;
}

#pause-label {
  padding: 14px 28px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--panel-strong);
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(14px, 3vw, 20px);
  letter-spacing: 0.24em;
  color: var(--text);
  box-shadow: 0 0 24px var(--glow);
}

#status-text {
  position: fixed;
  inset: 0;
  z-index: 3;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  pointer-events: none;
  transition: opacity 0.5s ease;
}

#status-text.hidden {
  opacity: 0;
}

#status-title {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(34px, 9vw, 76px);
  font-weight: 900;
  letter-spacing: 0.24em;
  color: var(--text);
  text-shadow: 0 0 24px var(--glow-hi);
}

#status-sub {
  font-size: clamp(11px, 2vw, 14px);
  letter-spacing: 0.2em;
  color: var(--dim);
}

#mini-overlay {
  position: fixed;
  right: 24px;
  bottom: 112px;
  z-index: 30;
  width: 300px;
  border-radius: 14px;
  overflow: hidden;
  user-select: none;
}

#mini-overlay.hidden {
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px) scale(0.92);
}

#mini-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
  background: var(--panel-strong);
  cursor: move;
}

#mini-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 10px;
  letter-spacing: 0.15em;
  color: var(--acc1);
}

#mini-header-btns {
  display: flex;
  gap: 6px;
}

#mini-header-btns button {
  min-width: 36px;
  padding: 4px 6px;
  font-size: 9px;
}

#mini-canvas {
  display: block;
  width: 300px;
  height: 160px;
  background: #000;
}

#mini-source-label {
  padding: 6px;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 9px;
  letter-spacing: 0.16em;
  color: var(--dim);
  background: var(--panel-strong);
}

#screen-toast {
  position: fixed;
  top: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 50;
  padding: 10px 22px;
  border-radius: 10px;
  border: 1px solid var(--acc1);
  background: var(--panel-strong);
  color: var(--acc1);
  font-size: 11px;
  letter-spacing: 0.1em;
  box-shadow: 0 0 26px var(--glow-hi);
  transition: opacity 0.35s ease, transform 0.35s ease;
}

#screen-toast.hidden {
  opacity: 0;
  pointer-events: none;
  transform: translateX(-50%) translateY(-8px);
}

::-webkit-scrollbar {
  display: none;
}


/* =========================================
   INTRO SCREEN (BASE STYLES)
   ========================================= */
#intro-screen {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: #050505;
  transition: opacity 1.2s ease, visibility 1.2s ease;
}

#intro-screen.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.intro-bg-image {
  position: absolute;
  inset: 0;
  background-image: url('intro-bg.jpg');
  background-size: cover;
  background-position: center;
  opacity: 0.8;
  z-index: -1;
  animation: introZoom 25s infinite alternate;
}

.intro-content {
  text-align: center;
  z-index: 1;
  width: 100%;
  padding: 0 24px;
  box-sizing: border-box;
}

#intro-title {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(2.5rem, 8vw, 8rem);
  font-weight: 900;
  letter-spacing: clamp(0.5rem, 2vw, 1.5rem);
  color: #fff;
  text-shadow: 0 0 40px rgba(255, 255, 255, 0.4);
  margin-bottom: 3rem;
  padding-left: clamp(0.5rem, 2vw, 1.5rem);
  animation: pulseTitle 4s infinite;
  display: block;
}

#btn-enter {
  background: rgba(0, 0, 0, 0.3);
  border: 2px solid rgba(255, 255, 255, 0.5);
  color: #fff;
  padding: 1.2rem 3rem;
  font-family: 'Orbitron', sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.3rem;
  border-radius: 50px;
  cursor: pointer;
  transition: all 0.3s ease;
  text-transform: uppercase;
  backdrop-filter: blur(8px);
}
@media (max-width: 900px) {
  #app-header {
    flex-wrap: wrap;
    justify-content: space-between;
    padding: 12px 14px;
  }

  #header-meta {
    position: relative;
    left: auto;
    transform: none;
    order: 3;
    width: 100%;
    margin-top: 12px;
  }

  #header-controls {
    gap: 6px;
    flex-wrap: wrap;
    justify-content: flex-end;
  }

  #header-controls button {
    min-width: 52px;
    padding: 6px 8px;
  }

  #file-player {
    top: 110px;
  }

  #control-panel {
    gap: 14px;
    padding: 14px 16px 18px;
  }
}

@media (max-width: 600px) {
  #intro-title {
    font-size: clamp(2rem, 12vw, 4rem) !important;
    letter-spacing: 0.3rem !important;
    padding-left: 0.3rem !important;
    margin-left: 0 !important;
  }
  #btn-enter {
    padding: 1rem 2rem;
    font-size: 1rem;
    letter-spacing: 0.2rem;
  }
  #energy-meter {
    right: 8px;
  }

  #energy-track {
    height: 108px;
  }

  #sensitivity-slider {
    width: 92px;
  }

  .source-btn,
  .mode-btn,
  .theme-btn {
    padding: 5px 8px;
    font-size: 8px;
  }

  #mini-overlay {
    right: 8px;
    bottom: 126px;
    width: 260px;
  }

  #mini-canvas {
    width: 260px !important;
    height: 140px !important;
  }

  

  
}

@media (max-width: 480px) {
  #intro-title {
    font-size: clamp(1.8rem, 10vw, 2.5rem) !important;
    letter-spacing: 0.2rem !important;
    padding-left: 0.2rem !important;
    margin-bottom: 2rem !important;
    margin-left: 0 !important;
  }
  #btn-enter {
    padding: 0.8rem 1.8rem;
    font-size: 0.9rem;
  }
  #app-header {
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    padding: 20px 16px; gap: 16px;
  }
  
  #logo {
    text-align: center;
    order: 1;
    font-size: 24px;
  }

  #header-controls {
    order: 2;
    margin-top: 0;
    justify-content: center;
    gap: 8px;
  }
  
  #header-meta {
    order: 3;
    margin: 4px 0 0 0;
    position: relative;
    left: auto;
    transform: none;
  }

  #control-panel {
    width: 100%;
    padding: 20px 14px 24px;
    gap: 12px;
    border-radius: 12px 12px 0 0;
    justify-content: center;
    flex-direction: column;
  }

  .btn-group {
    justify-content: center;
    width: 100%;
  }
  
  .control-group {
    align-items: center;
    text-align: center;
    width: 100%;
  }
  
  #file-player {
    top: 170px;
    width: 90vw;
  }
  
  #source-badge {
    top: auto;
    bottom: 240px;
    left: 50%;
    transform: translateX(-50%);
  }
  
  #energy-meter {
    display: none !important;
  }
}

#theme-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  background-size: cover;
  background-position: center;
  filter: blur(5px);
  opacity: 0.35;
  transition: background-image 1s ease, opacity 1s ease;
  pointer-events: none;
}

#theme-video, #theme-image {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  object-fit: cover;
  z-index: 0;
  pointer-events: none;
  opacity: 0.7;
  transition: opacity 1s ease;
}

#theme-video.hidden, #theme-image.hidden {
  opacity: 0;
}

@keyframes introZoom {
  0% { transform: scale(1); }
  100% { transform: scale(1.15); }
}





@keyframes pulseTitle {
  0%, 100% { text-shadow: 0 0 30px rgba(255,255,255,0.3); }
  50% { text-shadow: 0 0 60px rgba(100,200,255,0.7), 0 0 20px rgba(100,200,255,0.4); }
}



#btn-enter:hover {
  background: rgba(255, 255, 255, 0.15);
  border-color: #fff;
  box-shadow: 0 0 25px rgba(255, 255, 255, 0.6);
  transform: scale(1.05);
}

#custom-settings {
  display: none;
}
body[data-theme="custom"] #custom-settings {
  display: flex;
}
#custom-color-picker {
  -webkit-appearance: none;
  border: none;
  width: 32px;
  height: 32px;
  border-radius: 4px;
  cursor: pointer;
  background: transparent;
  padding: 0;
}
#custom-color-picker::-webkit-color-swatch-wrapper {
  padding: 0;
}
#custom-color-picker::-webkit-color-swatch {
  border: 1px solid #444;
  border-radius: 4px;
}
#custom-bg-btn {
  background: #1a1a1a;
  border: 1px solid #333;
  color: #fff;
  padding: 0 12px;
  border-radius: 4px;
  font-family: inherit;
  font-size: 11px;
  cursor: pointer;
  transition: all 0.2s;
}
#custom-bg-btn:hover {
  background: #2a2a2a;
  border-color: #555;
}

#custom-auto-btn {
  background: #1a1a1a;
  border: 1px solid #333;
  color: #fff;
  padding: 0 12px;
  border-radius: 4px;
  font-family: inherit;
  font-size: 11px;
  cursor: pointer;
  transition: all 0.2s;
}
#custom-auto-btn:hover {
  background: #2a2a2a;
  border-color: #555;
}

body.milkdrop-mode { --bg: #000 !important; --bg-soft: #000 !important; }
body.milkdrop-mode #theme-bg, body.milkdrop-mode #theme-video, body.milkdrop-mode #theme-image { opacity: 0 !important; transition: opacity 0.4s ease; }

body.vortex-mode { --bg: #000 !important; --bg-soft: #000 !important; }
body.vortex-mode #theme-bg, body.vortex-mode #theme-video, body.vortex-mode #theme-image { opacity: 0 !important; transition: opacity 0.4s ease; }

/* === MilkDrop quality & fit fixes === */
/* Hide grain overlay so it doesn't degrade butterchurn quality */
body.milkdrop-mode::after, body.vortex-mode::after { opacity: 0 !important; }
/* Hide the 2D canvas layers so they don't paint over butterchurn */
body.milkdrop-mode #viz-canvas { opacity: 0 !important; pointer-events: none; }
body.milkdrop-mode #bg-canvas, body.vortex-mode #bg-canvas { opacity: 0 !important; pointer-events: none; }
/* Ensure butterchurn canvas renders sharp and fills viewport correctly */
#butterchurn-canvas {
  image-rendering: auto;
  transition: opacity 0.4s ease, filter 0.5s ease;
  /* Ensure canvas CSS size stays at exact viewport with no rounding */
  width: 100vw !important;
  height: 100vh !important;
  object-fit: fill;
}

/* Auto-hide HUD logic */
#app-header, #control-panel, #energy-meter, #source-badge, #file-player {
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.6s ease;
}

body.controls-hidden #app-header {
  transform: translateY(-100%);
  opacity: 0;
  pointer-events: none;
}

body.controls-hidden #control-panel {
  transform: translateX(-50%) translateY(100%);
  opacity: 0;
  pointer-events: none;
}

body.controls-hidden #energy-meter {
  transform: translateY(-50%) translateX(100%);
  opacity: 0;
  pointer-events: none;
}

body.controls-hidden #source-badge,
body.controls-hidden #file-player {
  opacity: 0;
  pointer-events: none;
}

/* VORTEX FLOOR VISIBILITY FIX */
body.fullscreen-active .controls, body.idle .controls { opacity: 0 !important; pointer-events: none !important; transition: opacity 0.5s ease; }



#btn-info {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255,255,255,0.2);
  padding: 0.4rem 0.8rem;
  border-radius: 4px;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.8rem;
  transition: all 0.2s;
}
#btn-info:hover {
  background: rgba(255,255,255,0.1);
}
#info-modal {
  position: fixed;
  top: 0; left: 0; width: 100%; height: 100%;
  background: rgba(0, 0, 0, 0.8);
  backdrop-filter: blur(5px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 1;
  transition: opacity 0.3s ease;
}
#info-modal.hidden {
  opacity: 0;
  pointer-events: none;
}
.info-modal-content {
  background: #111;
  padding: 30px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.1);
  max-width: 500px;
  width: 90%;
  color: #fff;
  font-family: 'Inter', sans-serif;
  text-align: center;
}
.info-modal-content h2 {
  margin-top: 0;
  font-family: 'Orbitron', sans-serif;
  letter-spacing: 2px;
}
.info-modal-content ul {
  text-align: left;
  line-height: 1.6;
  margin-bottom: 20px;
  background: rgba(255,255,255,0.05);
  padding: 15px 15px 15px 35px;
  border-radius: 4px;
}
.info-signature {
  margin-top: 30px;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.1);
  font-family: 'Space Mono', monospace;
  color: rgba(255,255,255,0.5);
  font-size: 0.9rem;
  letter-spacing: 1px;
  text-transform: uppercase;
}
#btn-close-info {
  margin-top: 20px;
  background: #333;
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: 4px;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  letter-spacing: 1px;
  transition: 0.2s;
}
#btn-close-info:hover {
  background: #555;
}
.signature-desc {
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: 8px;
  text-transform: none;
  letter-spacing: normal;
}
.signature-name {
  font-size: 1rem;
  color: #fff;
  margin-bottom: 15px;
}
.social-links {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
}
.social-links a {
  color: #00ffcc;
  text-decoration: none;
  transition: color 0.3s ease, text-shadow 0.3s ease;
}
.social-links a:hover {
  color: #fff;
  text-shadow: 0 0 8px rgba(0, 255, 204, 0.8);
}
.separator {
  color: rgba(255, 255, 255, 0.3);
  font-size: 0.7rem;
}