/* ============================================
   MAYYUR AIR DRAW - Futuristic Air Drawing
   draw.mayyur.com
   ============================================ */

/* === CSS Variables === */
:root {
  --cyan: #00f5ff;
  --purple: #a855f7;
  --magenta: #ff006e;
  --green: #39ff14;
  --yellow: #ffbe0b;
  --bg-dark: #0a0a0f;
  --bg-card: rgba(15, 15, 25, 0.85);
  --border-glow: rgba(0, 245, 255, 0.2);
  --text-primary: #e8e8f0;
  --text-secondary: #8888aa;
  --glass-bg: rgba(10, 10, 20, 0.75);
  --glass-border: rgba(0, 245, 255, 0.15);
  --radius: 12px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html,
body {
  width: 100%;
  height: 100%;
  overflow: hidden;
  font-family:
    "Segoe UI",
    -apple-system,
    BlinkMacSystemFont,
    sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  user-select: none;
  -webkit-user-select: none;
}

/* === Intro Overlay === */
.intro-overlay {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: var(--bg-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  transition:
    opacity 0.8s ease,
    visibility 0.8s ease;
}

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

.intro-content {
  text-align: center;
  animation: introFadeIn 1s ease forwards;
}

@keyframes introFadeIn {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.intro-logo-svg {
  width: 100px;
  height: 100px;
  margin-bottom: 24px;
}

.intro-circle {
  stroke-dasharray: 320;
  stroke-dashoffset: 320;
  animation: drawCircle 1.5s ease forwards 0.3s;
}

.intro-path {
  stroke-dasharray: 100;
  stroke-dashoffset: 100;
  animation: drawPath 1s ease forwards 0.8s;
}

.intro-dot {
  opacity: 0;
  animation: dotAppear 0.5s ease forwards 1.3s;
}

@keyframes drawCircle {
  to {
    stroke-dashoffset: 0;
  }
}

@keyframes drawPath {
  to {
    stroke-dashoffset: 0;
  }
}

@keyframes dotAppear {
  to {
    opacity: 1;
  }
}

.intro-title {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: 6px;
  background: linear-gradient(135deg, var(--cyan), var(--purple), var(--magenta));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.intro-subtitle {
  font-size: 0.9rem;
  color: var(--text-secondary);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 40px;
}

.intro-loader {
  width: 200px;
  height: 3px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 3px;
  margin: 0 auto 16px;
  overflow: hidden;
}

.intro-loader-bar {
  width: 0%;
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--purple));
  border-radius: 3px;
  transition: width 0.3s ease;
}

.intro-status {
  font-size: 0.75rem;
  color: var(--text-secondary);
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* === Background Effects === */
.bg-effects {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.bg-particles {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 245, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 245, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
  from {
    transform: translate(0, 0);
  }
  to {
    transform: translate(60px, 60px);
  }
}

.bg-vignette {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center, transparent 40%, rgba(0, 0, 0, 0.6) 100%);
}

/* === Canvas Container === */
.canvas-container {
  position: fixed;
  inset: 0;
  z-index: 1;
}

.webcam-feed {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scaleX(-1);
  opacity: 0.15;
  filter: blur(1px) saturate(0.5);
  z-index: 1;
}

.tracking-canvas,
.drawing-canvas,
.effects-canvas,
.cursor-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.tracking-canvas {
  z-index: 2;
}
.drawing-canvas {
  z-index: 3;
}
.effects-canvas {
  z-index: 4;
}
.cursor-canvas {
  z-index: 5;
}

/* === Brand Logo === */
.brand-logo {
  position: fixed;
  top: 20px;
  left: 20px;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 30px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  animation: logoFloat 3s ease-in-out infinite;
}

@keyframes logoFloat {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-3px);
  }
}

.brand-svg {
  width: 28px;
  height: 28px;
}

.brand-text {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 3px;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  text-transform: uppercase;
}

/* === Gesture HUD === */
.gesture-hud {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 100;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px 24px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  min-width: 140px;
  transition: var(--transition);
}

.gesture-hud.active {
  border-color: var(--cyan);
  box-shadow:
    0 0 20px rgba(0, 245, 255, 0.15),
    inset 0 0 20px rgba(0, 245, 255, 0.05);
}

.hud-ring {
  width: 40px;
  height: 40px;
  border: 2px solid var(--cyan);
  border-radius: 50%;
  margin-bottom: 8px;
  position: relative;
  opacity: 0.6;
  transition: var(--transition);
}

.gesture-hud.active .hud-ring {
  opacity: 1;
  animation: hudPulse 2s ease-in-out infinite;
}

@keyframes hudPulse {
  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(0, 245, 255, 0.4);
  }
  50% {
    box-shadow: 0 0 0 8px rgba(0, 245, 255, 0);
  }
}

.hud-label {
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--cyan);
  text-transform: uppercase;
  transition: var(--transition);
}

.hud-sublabel {
  font-size: 0.6rem;
  color: var(--text-secondary);
  letter-spacing: 1px;
  margin-top: 4px;
}

/* === FPS Monitor === */
.fps-monitor {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  font-size: 0.7rem;
}

.fps-label {
  color: var(--text-secondary);
  letter-spacing: 1px;
}

.fps-value {
  color: var(--green);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  min-width: 20px;
  text-align: right;
}

.fps-value.warning {
  color: var(--yellow);
}
.fps-value.critical {
  color: var(--magenta);
}

/* === Floating Toolbar === */
.toolbar {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 200;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  min-width: 280px;
  max-width: 340px;
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.4),
    0 0 60px rgba(0, 245, 255, 0.05);
  transition: var(--transition);
  overflow: hidden;
}

.toolbar:hover {
  border-color: rgba(0, 245, 255, 0.3);
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.5),
    0 0 80px rgba(0, 245, 255, 0.08);
}

.toolbar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  cursor: move;
}

.toolbar-title {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.toolbar-collapse-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
  border-radius: 4px;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.toolbar-collapse-btn:hover {
  color: var(--cyan);
  background: rgba(0, 245, 255, 0.1);
}

.toolbar-collapse-btn.collapsed svg {
  transform: rotate(180deg);
}

.toolbar-body {
  padding: 12px 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-height: 400px;
  overflow-y: auto;
  transition:
    max-height 0.4s ease,
    padding 0.4s ease,
    opacity 0.3s ease;
}

.toolbar-body.collapsed {
  max-height: 0;
  padding: 0 16px;
  opacity: 0;
  overflow: hidden;
}

/* Tool Groups */
.tool-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.tool-label {
  font-size: 0.65rem;
  color: var(--text-secondary);
  letter-spacing: 1px;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.tool-label span {
  color: var(--cyan);
  font-weight: 600;
}

/* Color Picker */
.color-picker-row {
  display: flex;
  align-items: center;
  gap: 6px;
}

.color-swatch {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--swatch-color);
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
  position: relative;
}

.color-swatch:hover {
  transform: scale(1.2);
  box-shadow: 0 0 12px var(--swatch-color);
}

.color-swatch.active {
  border-color: white;
  box-shadow: 0 0 16px var(--swatch-color);
}

.custom-color-wrapper {
  width: 26px;
  height: 26px;
  border-radius: 6px;
  border: 1.5px dashed rgba(255, 255, 255, 0.25);
  position: relative;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  background: rgba(255, 255, 255, 0.03);
  overflow: hidden;
}

.custom-color-wrapper:hover {
  border-color: var(--cyan);
  box-shadow: 0 0 10px rgba(0, 245, 255, 0.2);
  transform: scale(1.15);
}

.custom-color-wrapper.active {
  border-style: solid;
  border-color: white;
  box-shadow: 0 0 12px rgba(255, 255, 255, 0.3);
}

.custom-color-icon {
  position: absolute;
  color: rgba(255, 255, 255, 0.5);
  pointer-events: none;
  z-index: 1;
  transition: var(--transition);
}

.custom-color-wrapper.active .custom-color-icon {
  opacity: 0;
}

.custom-color-input {
  width: 100%;
  height: 100%;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  background: none;
  padding: 0;
  opacity: 0;
  position: absolute;
  inset: 0;
}

.custom-color-wrapper.active .custom-color-input {
  opacity: 1;
}

.custom-color-input::-webkit-color-swatch-wrapper {
  padding: 0;
}

.custom-color-input::-webkit-color-swatch {
  border: none;
  border-radius: 4px;
}

/* Sliders */
.tool-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.1);
  outline: none;
  cursor: pointer;
}

.tool-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--cyan);
  cursor: pointer;
  box-shadow: 0 0 8px var(--cyan);
  transition: var(--transition);
}

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

.tool-slider::-moz-range-thumb {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--cyan);
  cursor: pointer;
  border: none;
  box-shadow: 0 0 8px var(--cyan);
}

/* Tool Buttons */
.toggles-row {
  flex-direction: row;
  flex-wrap: wrap;
  gap: 6px;
}

.tool-btn {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-secondary);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.tool-btn:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(0, 245, 255, 0.08);
  box-shadow: 0 0 12px rgba(0, 245, 255, 0.15);
}

.tool-btn.active {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(0, 245, 255, 0.12);
  box-shadow: 0 0 16px rgba(0, 245, 255, 0.2);
}

/* === Watermark === */
.watermark {
  position: fixed;
  bottom: 20px;
  left: 20px;
  z-index: 50;
  font-size: 0.6rem;
  color: rgba(255, 255, 255, 0.15);
  letter-spacing: 2px;
  text-transform: uppercase;
}

/* === Screenshot Flash === */
.screenshot-flash {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: white;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.1s ease;
}

.screenshot-flash.active {
  opacity: 0.8;
}

/* === Scrollbar === */
::-webkit-scrollbar {
  width: 4px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(0, 245, 255, 0.3);
  border-radius: 4px;
}

/* === Responsive === */
@media (max-width: 768px) {
  .brand-logo {
    top: 10px;
    left: 10px;
    padding: 6px 10px;
  }

  .brand-text {
    font-size: 0.6rem;
    letter-spacing: 2px;
  }

  .brand-svg {
    width: 22px;
    height: 22px;
  }

  .gesture-hud {
    top: 10px;
    right: 10px;
    padding: 10px 16px;
    min-width: 100px;
  }

  .hud-ring {
    width: 30px;
    height: 30px;
  }

  .hud-label {
    font-size: 0.7rem;
  }

  .toolbar {
    bottom: 10px;
    min-width: 240px;
    max-width: 90vw;
  }

  .fps-monitor {
    bottom: 10px;
    right: 10px;
  }

  .intro-title {
    font-size: 1.5rem;
    letter-spacing: 4px;
  }

  .intro-subtitle {
    font-size: 0.7rem;
  }
}

@media (max-width: 480px) {
  .brand-text {
    display: none;
  }

  .toolbar {
    min-width: 200px;
    left: 10px;
    right: 10px;
    transform: none;
    max-width: none;
  }

  .gesture-hud {
    padding: 8px 12px;
  }

  .hud-sublabel {
    display: none;
  }
}

@media (min-width: 2000px) {
  .toolbar {
    min-width: 360px;
    max-width: 400px;
  }

  .brand-logo {
    top: 30px;
    left: 30px;
  }

  .gesture-hud {
    top: 30px;
    right: 30px;
  }
}

/* === Landscape Mobile === */
@media (max-height: 500px) and (orientation: landscape) {
  .toolbar {
    bottom: 5px;
    max-height: 80vh;
  }

  .toolbar-body {
    max-height: 200px;
  }

  .gesture-hud {
    top: 5px;
    right: 5px;
    padding: 8px 12px;
  }

  .brand-logo {
    top: 5px;
    left: 5px;
  }
}

/* === Help Modal === */
.help-modal {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  opacity: 0;
  visibility: hidden;
  transition:
    opacity 0.3s ease,
    visibility 0.3s ease;
}

.help-modal.visible {
  opacity: 1;
  visibility: visible;
}

.help-modal-content {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  width: 90%;
  max-width: 520px;
  max-height: 80vh;
  overflow-y: auto;
  box-shadow:
    0 16px 64px rgba(0, 0, 0, 0.5),
    0 0 80px rgba(0, 245, 255, 0.05);
  transform: translateY(20px) scale(0.95);
  transition: transform 0.3s ease;
}

.help-modal.visible .help-modal-content {
  transform: translateY(0) scale(1);
}

.help-modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.help-modal-title {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.help-close-btn {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-secondary);
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.help-close-btn:hover {
  border-color: var(--magenta);
  color: var(--magenta);
  background: rgba(255, 0, 110, 0.1);
}

.help-modal-body {
  padding: 20px 24px;
}

.help-section {
  margin-bottom: 20px;
}

.help-section:last-child {
  margin-bottom: 0;
}

.help-section-title {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

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

.help-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.04);
  transition: var(--transition);
}

.help-item:hover {
  background: rgba(0, 245, 255, 0.03);
  border-color: rgba(0, 245, 255, 0.1);
}

.help-gesture {
  font-size: 0.8rem;
  color: var(--text-primary);
}

.help-action {
  font-size: 0.7rem;
  color: var(--cyan);
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 3px 8px;
  background: rgba(0, 245, 255, 0.08);
  border-radius: 4px;
}

.help-tips-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.help-tips-list li {
  font-size: 0.8rem;
  color: var(--text-primary);
  padding-left: 16px;
  position: relative;
  line-height: 1.5;
}

.help-tips-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--purple);
  box-shadow: 0 0 6px var(--purple);
}