/* Design System - High-Contrast Dark Mode & Distance-Visible Mirror UI */

:root {
  --bg-dark: #0a0c10;
  --panel-bg: rgba(20, 24, 33, 0.75);
  --glass-border: rgba(255, 255, 255, 0.12);
  --text-main: #f0f4f8;
  --text-muted: #8a99ad;

  /* State Color Coding for Cues */
  --state-idle-bg: #111622;
  --state-idle-accent: #3b82f6;

  --state-forward-bg: #064e3b;
  --state-forward-accent: #10b981;

  --state-backward-bg: #1e1b4b;
  --state-backward-accent: #6366f1;

  --state-attack-bg: #881337;
  --state-attack-accent: #f43f5e;
  --state-attack-glow: #ff0055;

  --font-heading: 'Outfit', sans-serif;
  --font-mono: 'Space Mono', monospace;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-main);
  font-family: var(--font-heading);
  min-height: 100vh;
  overflow-x: hidden;
  transition: background-color 0.4s ease, border-color 0.4s ease;
}

/* Background Color Code State Transitions for Distance Visibility */
body.mode-idle { background-color: #0d1117; }
body.cue-forward { background-color: var(--state-forward-bg); }
body.cue-backward { background-color: var(--state-backward-bg); }
body.cue-attack { 
  background-color: var(--state-attack-bg);
  animation: pulseAttack 0.6s infinite alternate ease-in-out;
}

@keyframes pulseAttack {
  0% { background-color: #881337; }
  100% { background-color: #be123c; }
}

.app-container {
  display: grid;
  grid-template-columns: 1fr 380px;
  grid-template-rows: 70px 1fr;
  grid-template-areas:
    "header header"
    "main sidebar";
  height: 100vh;
  gap: 16px;
  padding: 16px;
}

/* Header Navbar */
.app-header {
  grid-area: header;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--panel-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 0 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-icon {
  font-size: 1.8rem;
}

.brand h1 {
  font-size: 1.4rem;
  font-weight: 900;
  letter-spacing: 2px;
}

.brand .highlight {
  color: #38bdf8;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 16px;
}

.preset-selector {
  display: flex;
  background: rgba(0, 0, 0, 0.3);
  padding: 4px;
  border-radius: 12px;
  border: 1px solid var(--glass-border);
}

.preset-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 8px 16px;
  border-radius: 8px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
}

.preset-btn.active {
  background: #38bdf8;
  color: #000;
}

.icon-btn {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  color: var(--text-main);
  padding: 8px 16px;
  border-radius: 10px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s ease;
}

.icon-btn:hover {
  background: rgba(255, 255, 255, 0.15);
}

/* Main Wall Display Area */
.drill-display {
  grid-area: main;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  position: relative;
  background: rgba(0, 0, 0, 0.35);
  border: 2px solid var(--glass-border);
  border-radius: 24px;
  padding: 32px;
  text-align: center;
  backdrop-filter: blur(8px);
}

.cue-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.cue-badge {
  background: rgba(255, 255, 255, 0.1);
  color: #38bdf8;
  border: 1px solid rgba(56, 189, 248, 0.3);
  padding: 6px 18px;
  border-radius: 20px;
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: 3px;
  margin-bottom: 24px;
}

.cue-symbol {
  font-size: 8rem;
  line-height: 1;
  margin-bottom: 16px;
  filter: drop-shadow(0 0 20px rgba(255, 255, 255, 0.3));
  transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.cue-text {
  font-size: 4.5rem;
  font-weight: 900;
  letter-spacing: 4px;
  text-transform: uppercase;
  text-shadow: 0 4px 24px rgba(0,0,0,0.5);
  margin-bottom: 12px;
}

.cue-subtext {
  font-size: 1.4rem;
  color: var(--text-muted);
  font-weight: 600;
}

/* Reaction HUD */
.reaction-hud {
  display: flex;
  gap: 24px;
  margin-top: 36px;
  transition: opacity 0.3s ease;
}

.reaction-hud.hidden {
  opacity: 0;
  pointer-events: none;
}

.stat-card {
  background: rgba(0, 0, 0, 0.6);
  border: 1px solid var(--glass-border);
  padding: 16px 28px;
  border-radius: 16px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.stat-card.flash {
  border-color: #fbbf24;
  box-shadow: 0 0 20px rgba(251, 191, 36, 0.3);
}

.stat-label {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--text-muted);
  letter-spacing: 2px;
}

.stat-value {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 700;
  color: #fbbf24;
}

/* Drill Controls Overlay */
.drill-controls {
  position: absolute;
  bottom: 32px;
  display: flex;
  gap: 16px;
}

.btn-primary {
  background: linear-gradient(135deg, #10b981, #059669);
  color: #fff;
  border: none;
  padding: 16px 36px;
  border-radius: 14px;
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: 1px;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(16, 185, 129, 0.3);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(16, 185, 129, 0.4);
}

.btn-secondary {
  background: rgba(239, 68, 68, 0.2);
  border: 1px solid #ef4444;
  color: #f87171;
  padding: 16px 28px;
  border-radius: 14px;
  font-size: 1.1rem;
  font-weight: 800;
  cursor: pointer;
}

.btn-warning {
  background: rgba(245, 158, 11, 0.2);
  border: 1px solid #f59e0b;
  color: #fbbf24;
  padding: 16px 24px;
  border-radius: 14px;
  font-weight: 700;
  cursor: pointer;
}

/* Diagnostics Sidebar */
.diagnostics-panel {
  grid-area: sidebar;
  background: var(--panel-bg);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  overflow-y: auto;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.panel-header h3 {
  font-size: 1rem;
  letter-spacing: 1.5px;
}

.badge {
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 0.75rem;
  font-weight: 800;
}

.badge.idle { background: #374151; color: #9ca3af; }
.badge.extending { background: #d97706; color: #fff; }
.badge.strike { background: #dc2626; color: #fff; box-shadow: 0 0 10px #dc2626; }

/* Camera Video & Pose Canvas */
.camera-wrapper {
  position: relative;
  width: 100%;
  aspect-ratio: 4/3;
  background: #000;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--glass-border);
}

.camera-wrapper video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scaleX(-1); /* Mirror view */
}

.camera-wrapper canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  transform: scaleX(-1);
}

.pose-overlay-status {
  position: absolute;
  bottom: 8px;
  left: 8px;
  background: rgba(0, 0, 0, 0.7);
  padding: 4px 10px;
  border-radius: 8px;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: #38bdf8;
}

/* Metrics Grid & Progress Bars */
.metrics-grid {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.metric-box {
  background: rgba(0, 0, 0, 0.3);
  padding: 12px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.metric-header {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.progress-bar-bg {
  width: 100%;
  height: 8px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 4px;
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: #38bdf8;
  width: 0%;
  transition: width 0.1s linear;
}

.progress-bar-fill.velocity { background: #f59e0b; }
.progress-bar-fill.scale { background: #ec4899; }

/* Sensitivity Controls */
.calibration-box {
  background: rgba(0, 0, 0, 0.3);
  padding: 12px;
  border-radius: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.calibration-box label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
}

.calibration-box input[type="range"] {
  width: 100%;
  accent-color: #38bdf8;
}

/* Session Stats Table */
.session-stats {
  background: rgba(0, 0, 0, 0.3);
  padding: 14px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.session-stats h4 {
  font-size: 0.85rem;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 10px;
}

.stats-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  text-align: center;
}

.stats-row div {
  display: flex;
  flex-direction: column;
}

.stats-row small {
  font-size: 0.65rem;
  color: var(--text-muted);
  font-weight: 700;
}

.stats-row strong {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  color: #38bdf8;
}

.hidden { display: none !important; }

/* Telemetry Log Box */
.telemetry-box {
  background: rgba(0, 0, 0, 0.4);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: 180px;
}

.telemetry-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.75rem;
  font-weight: 800;
  color: var(--text-muted);
}

.text-btn {
  background: transparent;
  border: none;
  color: #38bdf8;
  font-size: 0.7rem;
  cursor: pointer;
}

.telemetry-log {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  line-height: 1.4;
  color: #a7f3d0;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.log-line {
  word-break: break-all;
}

.log-line.cue { color: #f59e0b; font-weight: bold; }
.log-line.strike { color: #f43f5e; font-weight: bold; }