/* ============================================================
   KINETIC·SOUL — Global Styles
   KS-V1-2026
   ============================================================ */

/* --- CSS Variables --- */
:root {
  --bg: #050508;
  --bg-panel: rgba(6, 6, 14, 0.85);
  --border: rgba(255, 255, 255, 0.07);
  --border-active: rgba(255, 255, 255, 0.25);
  --text-primary: #e8e8f0;
  --text-dim: rgba(232, 232, 240, 0.4);
  --text-label: rgba(232, 232, 240, 0.25);
  --accent: #ff006e;
  --accent-2: #8338ec;
  --accent-3: #3a86ff;
  --glow: rgba(255, 0, 110, 0.3);
  --panel-blur: 20px;
  --panel-w: 220px;
  --font-hud: "Orbitron", monospace;
  --font-body: "Space Mono", monospace;
  --radius: 6px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html,
body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 11px;
  cursor: none;
}

/* --- Custom cursor --- */
body::after {
  content: "";
  position: fixed;
  width: 12px;
  height: 12px;
  border: 1.5px solid var(--accent);
  border-radius: 50%;
  pointer-events: none;
  z-index: 9999;
  transform: translate(-50%, -50%);
  transition:
    width 0.15s,
    height 0.15s,
    background 0.15s;
  top: var(--cy, -100px);
  left: var(--cx, -100px);
  mix-blend-mode: screen;
}

/* --- Canvas --- */
#canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: block;
}

/* ============================================================
   HUD
   ============================================================ */

.hud {
  position: fixed;
  z-index: 100;
  pointer-events: none;
}

/* TOP HUD */
.hud--top {
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 28px;
  background: linear-gradient(
    to bottom,
    rgba(5, 5, 8, 0.9) 0%,
    transparent 100%
  );
}

.hud__logo {
  display: flex;
  align-items: center;
  gap: 2px;
  letter-spacing: 0.15em;
}

.hud__logo-text {
  font-family: var(--font-hud);
  font-weight: 900;
  font-size: 18px;
  color: var(--text-primary);
}

.hud__logo-text--alt {
  color: var(--accent);
}

.hud__logo-dot {
  font-family: var(--font-hud);
  font-size: 22px;
  color: var(--accent-2);
  margin: 0 1px;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.3;
  }
}

.hud__stats {
  display: flex;
  gap: 32px;
}

.hud__stat {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
}

.hud__stat-label {
  font-family: var(--font-hud);
  font-size: 8px;
  letter-spacing: 0.2em;
  color: var(--text-label);
}

.hud__stat-value {
  font-family: var(--font-hud);
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.05em;
  min-width: 48px;
  text-align: right;
}

/* BOTTOM HUD */
.hud--bottom {
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  gap: 40px;
  padding: 14px 28px 18px;
  background: linear-gradient(to top, rgba(5, 5, 8, 0.8) 0%, transparent 100%);
}

.hint {
  font-family: var(--font-hud);
  font-size: 9px;
  letter-spacing: 0.12em;
  color: var(--text-label);
  display: flex;
  align-items: center;
  gap: 8px;
}

.hint__key {
  color: var(--text-dim);
  border: 1px solid var(--border-active);
  padding: 2px 7px;
  border-radius: 3px;
}

/* ============================================================
   PANELS
   ============================================================ */

.panel {
  position: fixed;
  top: 50%;
  transform: translateY(-50%);
  z-index: 100;
  width: var(--panel-w);
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  backdrop-filter: blur(var(--panel-blur));
  -webkit-backdrop-filter: blur(var(--panel-blur));
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-height: 85vh;
  overflow-y: auto;
  scrollbar-width: none;
}

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

.panel--left {
  left: 18px;
}
.panel--right {
  right: 18px;
}

/* Panel glow border on hover */
.panel:hover {
  border-color: var(--border-active);
  box-shadow: 0 0 30px rgba(131, 56, 236, 0.08);
}

.panel__label {
  font-family: var(--font-hud);
  font-size: 8px;
  letter-spacing: 0.25em;
  color: var(--text-label);
  margin-bottom: 2px;
}

.panel__divider {
  height: 1px;
  background: var(--border);
  margin: 4px 0;
}

/* ============================================================
   MODE BUTTONS
   ============================================================ */

.panel__buttons {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.mode-btn {
  all: unset;
  cursor: pointer;
  display: grid;
  grid-template-columns: 22px 1fr;
  grid-template-rows: auto auto;
  grid-template-areas: "icon name" "icon desc";
  column-gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.02);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.mode-btn::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  opacity: 0;
  transition: opacity var(--transition);
}

.mode-btn:hover,
.mode-btn--active {
  border-color: var(--accent);
  background: rgba(255, 0, 110, 0.08);
}

.mode-btn--active::before {
  opacity: 0.06;
}

.mode-btn__icon {
  grid-area: icon;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  position: relative;
  z-index: 1;
}

.mode-btn--active .mode-btn__icon {
  text-shadow: 0 0 12px var(--accent);
}

.mode-btn__name {
  grid-area: name;
  font-family: var(--font-hud);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--text-primary);
  position: relative;
  z-index: 1;
}

.mode-btn__desc {
  grid-area: desc;
  font-size: 9px;
  color: var(--text-dim);
  position: relative;
  z-index: 1;
}

/* ============================================================
   PALETTE BUTTONS
   ============================================================ */

.panel__palettes {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.palette-btn {
  all: unset;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.02);
  transition: all var(--transition);
}

.palette-btn:hover,
.palette-btn--active {
  border-color: var(--border-active);
  background: rgba(255, 255, 255, 0.05);
}

.palette-btn--active {
  border-color: var(--accent) !important;
}

.palette-btn__swatch {
  width: 28px;
  height: 28px;
  border-radius: 4px;
  flex-shrink: 0;
  display: block;
}

.palette-btn__name {
  font-family: var(--font-hud);
  font-size: 9px;
  letter-spacing: 0.15em;
  color: var(--text-primary);
}

/* ============================================================
   CONTROLS (RIGHT PANEL)
   ============================================================ */

.control-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.control-label {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-hud);
  font-size: 9px;
  letter-spacing: 0.12em;
  color: var(--text-dim);
}

.control-value {
  color: var(--text-primary);
  font-weight: 700;
  min-width: 28px;
  text-align: right;
}

.slider-track {
  position: relative;
  height: 20px;
  display: flex;
  align-items: center;
}

.slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 2px;
  background: var(--border);
  border-radius: 99px;
  outline: none;
  cursor: pointer;
  transition: background var(--transition);
}

.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg);
  cursor: pointer;
  box-shadow: 0 0 8px var(--glow);
  transition:
    box-shadow var(--transition),
    transform var(--transition);
}

.slider::-webkit-slider-thumb:hover {
  box-shadow: 0 0 16px var(--glow);
  transform: scale(1.3);
}

.slider::-moz-range-thumb {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg);
  cursor: pointer;
  box-shadow: 0 0 8px var(--glow);
}

/* ============================================================
   TOGGLE
   ============================================================ */

.toggle-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.toggle-label {
  font-family: var(--font-hud);
  font-size: 9px;
  letter-spacing: 0.12em;
  color: var(--text-dim);
}

.toggle {
  position: relative;
  display: inline-block;
  cursor: pointer;
}

.toggle input {
  opacity: 0;
  width: 0;
  height: 0;
  position: absolute;
}

.toggle__track {
  display: block;
  width: 38px;
  height: 20px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 999px;
  border: 1px solid var(--border);
  transition: all var(--transition);
  position: relative;
}

.toggle__thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--text-dim);
  transition: all var(--transition);
}

.toggle input:checked + .toggle__track {
  background: rgba(255, 0, 110, 0.25);
  border-color: var(--accent);
}

.toggle input:checked + .toggle__track .toggle__thumb {
  left: 21px;
  background: var(--accent);
  box-shadow: 0 0 8px var(--glow);
}

/* ============================================================
   AUDIO BARS
   ============================================================ */

.audio-bar-container {
  display: flex;
  gap: 4px;
  height: 40px;
  align-items: flex-end;
}

.audio-bar {
  flex: 1;
  background: var(--accent);
  border-radius: 2px 2px 0 0;
  height: 4px;
  transition: height 0.1s ease;
  opacity: 0.7;
}

#abar-mid {
  background: var(--accent-2);
}
#abar-treble {
  background: var(--accent-3);
}

.audio-labels {
  display: flex;
  justify-content: space-around;
  font-family: var(--font-hud);
  font-size: 7px;
  letter-spacing: 0.1em;
  color: var(--text-label);
}

/* ============================================================
   ACTION BUTTONS
   ============================================================ */

.action-btn {
  all: unset;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px;
  border: 1px solid var(--border-active);
  border-radius: var(--radius);
  font-family: var(--font-hud);
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
  transition: all var(--transition);
  width: 100%;
}

.action-btn:hover {
  background: rgba(255, 0, 110, 0.15);
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 0 16px rgba(255, 0, 110, 0.2);
}

.action-btn--secondary {
  border-color: var(--border);
  color: var(--text-dim);
}

.action-btn--secondary:hover {
  background: rgba(131, 56, 236, 0.15);
  border-color: var(--accent-2);
  color: #fff;
  box-shadow: 0 0 16px rgba(131, 56, 236, 0.2);
}

/* ============================================================
   AUDIO STATUS OVERLAY
   ============================================================ */

.audio-status {
  position: fixed;
  top: 70px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 16px;
  background: rgba(255, 0, 110, 0.15);
  border: 1px solid rgba(255, 0, 110, 0.4);
  border-radius: 99px;
  backdrop-filter: blur(10px);
  animation: fadeSlideIn 0.4s ease;
}

@keyframes fadeSlideIn {
  from {
    opacity: 0;
    transform: translateX(-50%) translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
}

.audio-status__icon {
  font-size: 14px;
  animation: mic-pulse 1s ease-in-out infinite;
}

@keyframes mic-pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.4;
  }
}

.audio-status__text {
  font-family: var(--font-hud);
  font-size: 9px;
  letter-spacing: 0.2em;
  color: var(--accent);
}

/* ============================================================
   CLICK RIPPLE EFFECT
   ============================================================ */

.ripple {
  position: fixed;
  border-radius: 50%;
  border: 2px solid var(--accent);
  pointer-events: none;
  z-index: 50;
  transform: translate(-50%, -50%) scale(0);
  animation: ripple-out 0.6s ease forwards;
}

@keyframes ripple-out {
  from {
    transform: translate(-50%, -50%) scale(0);
    opacity: 1;
  }
  to {
    transform: translate(-50%, -50%) scale(8);
    opacity: 0;
  }
}

/* ============================================================
   SCAN LINE OVERLAY
   ============================================================ */

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0, 0, 0, 0.03) 2px,
    rgba(0, 0, 0, 0.03) 4px
  );
  pointer-events: none;
  z-index: 10;
}

/* ============================================================
   ANIMATION PRESETS BAR
   ============================================================ */

.presets-bar {
  position: fixed;
  bottom: 52px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  backdrop-filter: blur(var(--panel-blur));
  -webkit-backdrop-filter: blur(var(--panel-blur));
  padding: 10px 16px;
  white-space: nowrap;
}

.presets-bar__label {
  font-family: var(--font-hud);
  font-size: 7px;
  letter-spacing: 0.25em;
  color: var(--text-label);
  padding-right: 8px;
  border-right: 1px solid var(--border);
  margin-right: 4px;
}

.presets-bar__list {
  display: flex;
  gap: 6px;
}

.preset-btn {
  all: unset;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.02);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.preset-btn::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  opacity: 0;
  transition: opacity var(--transition);
}

.preset-btn:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(255, 0, 110, 0.2);
}

.preset-btn:hover::after {
  opacity: 0.08;
}

.preset-btn--active {
  border-color: var(--accent) !important;
  background: rgba(255, 0, 110, 0.12) !important;
  box-shadow: 0 0 16px rgba(255, 0, 110, 0.25);
}

.preset-btn--active::after {
  opacity: 0.1;
}

.preset-btn__icon {
  font-size: 16px;
  line-height: 1;
  position: relative;
  z-index: 1;
}

.preset-btn__name {
  font-family: var(--font-hud);
  font-size: 7px;
  letter-spacing: 0.15em;
  color: var(--text-dim);
  position: relative;
  z-index: 1;
}

.preset-btn:hover .preset-btn__name,
.preset-btn--active .preset-btn__name {
  color: var(--text-primary);
}

/* Preset transition flash overlay */
.preset-flash {
  position: fixed;
  inset: 0;
  background: var(--accent);
  opacity: 0;
  pointer-events: none;
  z-index: 500;
  animation: preset-flash-anim 0.4s ease forwards;
}

@keyframes preset-flash-anim {
  0% {
    opacity: 0.15;
  }
  100% {
    opacity: 0;
  }
}

@media (max-width: 900px) {
  .presets-bar {
    gap: 6px;
    padding: 8px 12px;
  }
  .preset-btn {
    padding: 6px 10px;
  }
  .preset-btn__name {
    display: none;
  }
}

@media (max-width: 640px) {
  .presets-bar {
    bottom: 48px;
  }
  .presets-bar__label {
    display: none;
  }
}

::-webkit-scrollbar {
  width: 3px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: var(--border-active);
  border-radius: 99px;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */

@media (max-width: 900px) {
  :root {
    --panel-w: 180px;
  }
  .hud__stats {
    gap: 16px;
  }
  .hud--bottom {
    gap: 16px;
    font-size: 8px;
  }
}

@media (max-width: 640px) {
  .panel--left,
  .panel--right {
    display: none;
  }
  .hud--bottom .hint:nth-child(n + 3) {
    display: none;
  }
}