:root {
  --sky-bg: #dff3f7;
  --sky-top: #cbeff8;
  --sky-bottom: #fff6e9;
  --card-bg: rgba(255, 255, 255, 0.88);
  --card-border: rgba(255, 255, 255, 0.95);
  --card-shadow:
    0 12px 32px rgba(20, 62, 84, 0.1),
    0 3px 8px rgba(20, 62, 84, 0.06),
    inset 0 2px 0 rgba(255, 255, 255, 0.95);
  --text-main: #182635;
  --text-muted: #55697d;
  --g-blue: #4285F4;
  --g-red: #EA4335;
  --g-yellow: #FBBC05;
  --g-green: #34A853;
  --purple-badge: #8b5cf6;
  --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-display: 'Space Grotesk', sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  user-select: none;
  -webkit-user-select: none;
}

html, body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  background: linear-gradient(180deg, #c9eef7 0%, #dff3f7 58%, #f8f4e8 100%);
  font-family: var(--font-sans);
  color: var(--text-main);
}

#canvas-container {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1;
  cursor: grab;
}

#canvas-container:active {
  cursor: grabbing;
}

/* HUD LAYER (4 Corners) */
.hud-layer {
  position: fixed;
  inset: 0;
  z-index: 10;
  pointer-events: none;
  padding: 20px 24px;
  display: grid;
  grid-template-columns: minmax(280px, auto) 1fr;
  grid-template-rows: auto 1fr auto;
  gap: 16px;
}

.hud-card {
  pointer-events: auto;
  background: var(--card-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 2px solid var(--card-border);
  box-shadow: var(--card-shadow);
  border-radius: 26px;
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.25s ease;
}

/* 1. TOP LEFT CARD */
.top-left-card {
  grid-column: 1 / 2;
  grid-row: 1 / 2;
  align-self: start;
  justify-self: start;
  padding: 16px 22px;
  max-width: 455px;
}

.brand-top-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 6px;
}

.google-dots {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(240, 246, 252, 0.9);
  padding: 5px 9px;
  border-radius: 999px;
  box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.06);
}

.g-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  display: inline-block;
}
.g-dot.blue { background: var(--g-blue); }
.g-dot.red { background: var(--g-red); }
.g-dot.yellow { background: var(--g-yellow); }
.g-dot.green { background: var(--g-green); }

.org-label {
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  color: #36495d;
}

.season-badge {
  background: linear-gradient(135deg, #9333ea, #6366f1);
  color: #ffffff;
  font-size: 0.68rem;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 999px;
  letter-spacing: 0.06em;
  box-shadow: 0 4px 10px rgba(139, 92, 246, 0.32);
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 2.2vw, 2.05rem);
  font-weight: 700;
  line-height: 1.12;
  letter-spacing: -0.02em;
  color: #132232;
}

.gradient-danang {
  background: linear-gradient(95deg, #ff7b00 0%, #ff2e93 52%, #8b5cf6 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-subtitle {
  margin-top: 5px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
}

/* 2. TOP RIGHT STACK */
.top-right-stack {
  grid-column: 2 / 3;
  grid-row: 1 / 2;
  justify-self: end;
  align-self: start;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  max-width: 480px;
  transition: all 0.3s ease;
}

/* Panel Header Row with Toggle Button */
.panel-header-row {
  display: flex;
  align-items: center;
  gap: 6px;
}

.toggle-panel-btn,
.theme-toggle-btn {
  pointer-events: auto;
  appearance: none;
  border: 1px solid rgba(255, 255, 255, 0.7);
  background: rgba(255, 255, 255, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: #334155;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 700;
  padding: 3px 9px;
  border-radius: 999px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  box-shadow: 0 2px 6px rgba(15, 23, 42, 0.08);
  transition: all 0.2s ease;
}

.toggle-panel-btn:hover,
.theme-toggle-btn:hover {
  background: #ffffff;
  color: #0f172a;
  transform: translateY(-1px);
  box-shadow: 0 4px 10px rgba(15, 23, 42, 0.12);
}

.collapsible-controls {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  opacity: 1;
  transition: opacity 0.25s ease, transform 0.3s ease;
  transform-origin: top right;
}

.top-right-stack.collapsed .collapsible-controls {
  display: none;
}

/* Unified Compact 3-Row Panel Card */
.compact-panel {
  display: flex;
  flex-direction: column;
  gap: 5px;
  padding: 6px 8px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border: 1.5px solid rgba(255, 255, 255, 0.75);
  box-shadow: 0 8px 24px rgba(15, 45, 65, 0.12);
}

.panel-row {
  display: flex;
  align-items: center;
  gap: 4px;
}

.cam-row {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 4px;
  width: 100%;
}

.cam-pill {
  appearance: none;
  border: none;
  background: rgba(241, 247, 251, 0.92);
  color: #2c4053;
  font-family: var(--font-sans);
  font-size: 0.68rem;
  font-weight: 700;
  padding: 4px 5px;
  border-radius: 8px;
  cursor: pointer;
  text-align: center;
  transition: all 0.18s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 1px 3px rgba(15, 45, 65, 0.04), inset 0 1px 0 #fff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.cam-pill:hover {
  transform: translateY(-1px);
  background: #ffffff;
  color: #0d1d2c;
  box-shadow: 0 3px 8px rgba(25, 75, 115, 0.12);
}

.cam-pill.active {
  background: linear-gradient(135deg, #2563eb, #0ea5e9);
  color: #ffffff;
  box-shadow: 0 3px 10px rgba(14, 165, 233, 0.35);
}

/* Audio Row (Row 3) */
.audio-row {
  justify-content: space-between;
  padding: 2px 4px;
  background: rgba(241, 247, 251, 0.65);
  border-radius: 10px;
  gap: 6px;
}

.audio-btn {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, #34a853, #10b981);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.68rem;
  cursor: pointer;
  box-shadow: 0 2px 6px rgba(16, 185, 129, 0.28);
  transition: transform 0.2s ease;
}

.audio-btn:hover {
  transform: scale(1.08);
}

.audio-eq {
  display: inline-flex;
  align-items: flex-end;
  gap: 2px;
  height: 12px;
  flex-shrink: 0;
}

.audio-eq span {
  width: 2.5px;
  height: 3px;
  border-radius: 2px;
  background: #10b981;
  transition: height 0.15s ease;
}

.audio-eq.playing span:nth-child(1) {
  animation: eqBounce 0.55s infinite ease-in-out alternate;
}
.audio-eq.playing span:nth-child(2) {
  animation: eqBounce 0.4s 0.15s infinite ease-in-out alternate;
}
.audio-eq.playing span:nth-child(3) {
  animation: eqBounce 0.65s 0.08s infinite ease-in-out alternate;
}
.audio-eq.playing span:nth-child(4) {
  animation: eqBounce 0.48s 0.22s infinite ease-in-out alternate;
}

@keyframes eqBounce {
  0% { height: 3px; background: #34a853; }
  100% { height: 12px; background: #4285f4; }
}

.audio-track {
  font-size: 0.7rem;
  font-weight: 700;
  color: #334155;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex-shrink: 1;
}

.volume-wrap {
  display: flex;
  align-items: center;
  gap: 4px;
  background: rgba(255, 255, 255, 0.85);
  padding: 2px 7px;
  border-radius: 999px;
  flex-shrink: 0;
}

.vol-icon {
  font-size: 0.72rem;
}

#volume-slider {
  width: 52px;
  height: 4px;
  accent-color: #2563eb;
  cursor: pointer;
}

.dragon-action-pill {
  border: none;
  background: linear-gradient(135deg, #ff8a00, #ea4335);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 0.68rem;
  font-weight: 800;
  padding: 4px 8px;
  border-radius: 999px;
  cursor: pointer;
  box-shadow: 0 2px 8px rgba(234, 67, 53, 0.3);
  transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
  white-space: nowrap;
  flex-shrink: 0;
}

.dragon-action-pill:hover {
  transform: scale(1.05);
}

/* 3. BOTTOM LEFT CARD */
.bottom-left-card {
  grid-column: 1 / 2;
  grid-row: 3 / 4;
  align-self: end;
  justify-self: start;
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 13px 22px;
  border-radius: 999px;
}

.info-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.info-label {
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  color: #6b7f94;
}

.info-value {
  font-size: 0.85rem;
  font-weight: 800;
  color: #152536;
  white-space: nowrap;
}

.info-divider {
  width: 1.5px;
  height: 26px;
  background: rgba(150, 175, 195, 0.35);
}

/* 4. BOTTOM RIGHT STACK */
.bottom-right-stack {
  grid-column: 2 / 3;
  grid-row: 3 / 4;
  align-self: end;
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.hint-badge {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 12px 18px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 700;
  color: #2b4156;
}

.pulse-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #34a853;
  box-shadow: 0 0 0 0 rgba(52, 168, 83, 0.7);
  animation: pulseDot 1.8s infinite;
}

@keyframes pulseDot {
  0% { box-shadow: 0 0 0 0 rgba(52, 168, 83, 0.65); }
  70% { box-shadow: 0 0 0 8px rgba(52, 168, 83, 0); }
  100% { box-shadow: 0 0 0 0 rgba(52, 168, 83, 0); }
}

.cta-pill-btn {
  pointer-events: auto;
  border: 2px solid rgba(255, 255, 255, 0.85);
  background: linear-gradient(135deg, #1a73e8 0%, #0ea5e9 55%, #10b981 100%);
  color: #ffffff;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 800;
  padding: 13px 24px;
  border-radius: 999px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  box-shadow:
    0 12px 26px rgba(26, 115, 232, 0.35),
    inset 0 2px 0 rgba(255, 255, 255, 0.45);
  transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.25s ease;
}

.cta-pill-btn:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow:
    0 16px 32px rgba(26, 115, 232, 0.46),
    inset 0 2px 0 rgba(255, 255, 255, 0.6);
}

.cta-arrow {
  display: inline-block;
  transition: transform 0.2s ease;
}

.cta-pill-btn:hover .cta-arrow {
  transform: translateX(4px);
}

/* MASCOT FLOATING TOOLTIP */
.mascot-tooltip {
  position: fixed;
  z-index: 20;
  pointer-events: none;
  background: rgba(255, 255, 255, 0.95);
  border: 2px solid #ffffff;
  box-shadow: 0 10px 25px rgba(18, 52, 77, 0.16);
  padding: 9px 15px;
  border-radius: 18px;
  transform: translate(-50%, -120%);
  transition: opacity 0.18s ease, transform 0.18s ease;
  text-align: center;
  min-width: 150px;
}

.mascot-tooltip.hidden {
  opacity: 0;
  transform: translate(-50%, -105%) scale(0.92);
}

.tooltip-title {
  font-size: 0.82rem;
  font-weight: 800;
  color: #132538;
}

.tooltip-desc {
  font-size: 0.72rem;
  font-weight: 600;
  color: #4f667d;
  margin-top: 2px;
}

/* REGISTRATION MODAL */
.modal-backdrop {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: rgba(18, 46, 68, 0.35);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  transition: opacity 0.25s ease;
}

.modal-backdrop.hidden {
  opacity: 0;
  pointer-events: none;
}

.modal-card {
  position: relative;
  width: 100%;
  max-width: 540px;
  background: rgba(255, 255, 255, 0.96);
  border: 3px solid #ffffff;
  border-radius: 32px;
  padding: 30px 32px;
  box-shadow: 0 24px 60px rgba(15, 42, 66, 0.22);
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: none;
  background: #eff5fa;
  color: #2c4257;
  font-size: 1rem;
  font-weight: 800;
  cursor: pointer;
}

.modal-badge {
  display: inline-block;
  background: #f3e8ff;
  color: #7e22ce;
  font-size: 0.72rem;
  font-weight: 800;
  padding: 5px 12px;
  border-radius: 999px;
  letter-spacing: 0.06em;
  margin-bottom: 10px;
}

.modal-title {
  font-family: var(--font-display);
  font-size: 1.65rem;
  line-height: 1.2;
  color: #152536;
  margin-bottom: 10px;
}

.modal-subtitle {
  font-size: 0.88rem;
  line-height: 1.5;
  color: #4f657b;
  margin-bottom: 16px;
}

.modal-tracks {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
  margin-bottom: 20px;
}

.track-chip {
  background: #f0f7fc;
  color: #23415a;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 6px 12px;
  border-radius: 999px;
}

.modal-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.modal-form input,
.modal-form select {
  width: 100%;
  padding: 12px 15px;
  border-radius: 16px;
  border: 2px solid #dde8f2;
  background: #f9fcff;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 600;
  color: #172a3c;
  outline: none;
}

.modal-form input:focus,
.modal-form select:focus {
  border-color: #3b82f6;
  background: #fff;
}

.modal-submit-btn {
  border: none;
  border-radius: 16px;
  background: linear-gradient(135deg, #2563eb, #9333ea);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 0.88rem;
  font-weight: 800;
  padding: 12px 18px;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(147, 51, 234, 0.3);
}

.register-success {
  margin-top: 14px;
  padding: 13px 16px;
  border-radius: 16px;
  background: #ecfdf5;
  border: 2px solid #6ee7b7;
  color: #065f46;
  font-size: 0.84rem;
  font-weight: 700;
}

.register-success.hidden {
  display: none;
}

/* Responsive adjustments */
@media (max-width: 1024px) {
  .hud-layer {
    grid-template-columns: 1fr;
    grid-template-rows: auto auto 1fr auto;
    padding: 12px;
  }
  .top-right-stack {
    grid-column: 1 / 2;
    grid-row: 2 / 3;
    justify-self: start;
    align-items: flex-start;
    max-width: 100%;
  }
  .camera-pills-bar {
    justify-content: flex-start;
  }
  .bottom-right-stack {
    grid-column: 1 / 2;
    grid-row: 4 / 5;
    justify-self: stretch;
    justify-content: space-between;
  }
  .bottom-left-card {
    display: none;
  }
}

/* ============================================================================
   NIGHT MODE (DARK THEME STYLING)
   ============================================================================ */
body.night-mode {
  background-color: #091224;
}

body.night-mode .hud-card,
body.night-mode .compact-panel,
body.night-mode .toggle-panel-btn,
body.night-mode .theme-toggle-btn {
  background: rgba(15, 23, 42, 0.86);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-color: rgba(255, 255, 255, 0.14);
  color: #f1f5f9;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.45);
}

body.night-mode .toggle-panel-btn:hover,
body.night-mode .theme-toggle-btn:hover {
  background: rgba(30, 41, 59, 0.95);
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.25);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
}

body.night-mode .cam-pill {
  background: rgba(30, 41, 59, 0.85);
  color: #cbd5e1;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.25), inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

body.night-mode .cam-pill:hover {
  background: rgba(51, 65, 85, 0.95);
  color: #ffffff;
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.4);
}

body.night-mode .cam-pill.active {
  background: linear-gradient(135deg, #2563eb, #0ea5e9);
  color: #ffffff;
  box-shadow: 0 3px 12px rgba(14, 165, 233, 0.5);
}

body.night-mode .audio-row {
  background: rgba(30, 41, 59, 0.65);
}

body.night-mode .audio-track {
  color: #e2e8f0;
}

body.night-mode .volume-wrap {
  background: rgba(15, 23, 42, 0.88);
}

body.night-mode .hero-badge {
  background: rgba(15, 23, 42, 0.85);
  color: #38bdf8;
  border-color: rgba(56, 189, 248, 0.25);
}

body.night-mode .hero-title {
  color: #ffffff;
  text-shadow: 0 4px 24px rgba(0, 0, 0, 0.7);
}

body.night-mode .org-label {
  color: #ffffff;
}

body.night-mode .tooltip-title {
  color: #ffffff;
}

body.night-mode .info-value {
  color: #ffffff;
}

body.night-mode .info-label {
  color: #94a3b8;
}

body.night-mode .hint-badge {
  color: #ffffff;
}

body.night-mode .toggle-panel-btn,
body.night-mode .theme-toggle-btn {
  color: #ffffff;
}

body.night-mode .audio-track {
  color: #ffffff;
}

body.night-mode .mascot-tooltip {
  background: rgba(15, 23, 42, 0.92);
  border-color: rgba(255, 255, 255, 0.16);
  color: #f1f5f9;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.5);
}

body.night-mode .modal-card {
  background: rgba(15, 23, 42, 0.95);
  border-color: rgba(255, 255, 255, 0.16);
  color: #f1f5f9;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
}

body.night-mode .modal-title {
  color: #ffffff;
}

body.night-mode .form-group input {
  background: rgba(30, 41, 59, 0.85);
  border-color: rgba(255, 255, 255, 0.16);
  color: #ffffff;
}

body.night-mode .form-group input:focus {
  border-color: #38bdf8;
  background: rgba(30, 41, 59, 0.98);
}