/* =========================================================================
   Design System Tokens (Based on Stitch High-Performance App Generation)
   ========================================================================= */

:root {
  /* Colors - Premium Dark Mode */
  --bg-main: #0a0a0c;
  --bg-surface: #141416;
  --bg-surface-elevated: #1f1f22;
  
  --text-primary: #ffffff;
  --text-secondary: #9aa0a6;
  --text-tertiary: #6b7280;

  --accent-blue: #137fec;
  --accent-blue-hover: #106bca;
  --accent-blue-transparent: rgba(19, 127, 236, 0.15);
  
  --accent-green: #10b981;
  --accent-red: #ef4444;

  /* Typography */
  --font-family: 'Manrope', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 2rem;
  
  /* Borders & Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  --border-light: rgba(255, 255, 255, 0.08);

  /* Spacing */
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;

  /* Animation */
  --transition-fast: 150ms ease;
  --transition-normal: 250ms ease;
}

/* =========================================================================
   Reset & Base Styles
   ========================================================================= */

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

body.dark-theme {
  display: flex;
  justify-content: center;
  background-color: #000; /* Outer container dark */
  color: var(--text-primary);
  font-family: var(--font-family);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
}

.app-container {
  width: 100%;
  max-width: 480px; /* Mobile constraint */
  min-height: 100vh;
  background-color: var(--bg-main);
  position: relative;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  box-shadow: 0 0 40px rgba(0,0,0,0.5);
}

/* Typography base */
h1, h2, h3, h4 { font-weight: 700; }
a { color: var(--accent-blue); text-decoration: none; }
button { 
  font-family: inherit; 
  cursor: pointer; 
  border: none; 
  background: none; 
  color: inherit;
  transition: all var(--transition-fast);
}

/* =========================================================================
   Layout & Navigation
   ========================================================================= */

.top-bar {
  position: sticky;
  top: 0;
  z-index: 40;
  background-color: rgba(10, 10, 12, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  padding: var(--space-4) 0 var(--space-2);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 var(--space-4);
  margin-bottom: var(--space-3);
}

.header-content h1 {
  font-size: var(--text-xl);
  font-weight: 800;
  letter-spacing: -0.5px;
}

.icon-btn {
  padding: 8px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
}

.icon-btn:hover {
  background-color: var(--bg-surface);
  color: var(--text-primary);
}

/* Avatar Scroller */
.team-scroller {
  display: flex;
  overflow-x: auto;
  padding: 0 var(--space-4) var(--space-3);
  gap: var(--space-3);
  scrollbar-width: none; /* Firefox */
}
.team-scroller::-webkit-scrollbar { display: none; /* Safari/Chrome */ }

.avatar-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  cursor: pointer;
  min-width: 60px;
  opacity: 0.6;
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}

.avatar-wrapper.active,
.avatar-wrapper:hover {
  opacity: 1;
  transform: scale(1.05);
}

.avatar {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: var(--bg-surface-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: var(--text-base);
  border: 2px solid transparent;
  transition: border-color var(--transition-fast);
}

.avatar-wrapper.active .avatar {
  border-color: var(--accent-blue);
  box-shadow: 0 0 15px var(--accent-blue-transparent);
}

.avatar-name {
  font-size: var(--text-xs);
  color: var(--text-secondary);
  white-space: nowrap;
}
.avatar-wrapper.active .avatar-name {
  color: var(--text-primary);
  font-weight: 600;
}

/* Main Content Wrapper */
.main-content {
  flex: 1;
  padding: var(--space-4);
  padding-bottom: 100px; /* Space for FAB */
  animation: fadeIn 0.4s ease forwards;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

/* =========================================================================
   UI Components
   ========================================================================= */

/* Cards */
.card {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  border: 1px solid var(--border-light);
  margin-bottom: var(--space-3);
}

.card-title {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: var(--space-2);
}

.metric-value {
  font-size: var(--text-3xl);
  font-weight: 800;
  color: var(--text-primary);
}

.metric-row {
  display: flex;
  align-items: baseline;
  gap: var(--space-2);
}

.trend-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 8px;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
}

.trend-badge.positive {
  background: rgba(16, 185, 129, 0.15);
  color: var(--accent-green);
}

/* Progress Circles */
.progress-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.progress-card {
  background: var(--bg-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
  border: 1px solid var(--border-light);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--space-2);
}

.circle-chart {
  position: relative;
  width: 80px;
  height: 80px;
}

.circle-chart svg {
  transform: rotate(-90deg);
  width: 100%;
  height: 100%;
}

.circle-bg {
  fill: none;
  stroke: var(--bg-surface-elevated);
  stroke-width: 8;
}

.circle-progress {
  fill: none;
  stroke: var(--accent-blue);
  stroke-width: 8;
  stroke-linecap: round;
  transition: stroke-dasharray 1s ease-out;
}

.circle-text {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: var(--text-base);
  font-weight: 800;
  color: var(--text-primary);
}

/* Data Entry Form */
.input-group {
  margin-bottom: var(--space-4);
}

.input-label {
  display: block;
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-bottom: var(--space-2);
  font-weight: 500;
}

.number-control {
  display: flex;
  align-items: center;
  background: var(--bg-surface-elevated);
  border-radius: var(--radius-lg);
  padding: 4px;
  border: 1px solid var(--border-light);
}

.number-btn {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-surface);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
}

.number-btn:active {
  background: var(--text-secondary);
  transform: scale(0.95);
}

.number-input {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: var(--text-2xl);
  font-weight: 800;
  text-align: center;
  font-family: inherit;
  width: 100%;
  outline: none;
}

.number-control:focus-within {
  border-color: var(--accent-blue);
  box-shadow: 0 0 0 2px var(--accent-blue-transparent);
}

/* Floating Action Button */
.fab {
  position: fixed;
  bottom: var(--space-6);
  right: max(var(--space-6), calc(50vw - 240px + var(--space-6))); /* Responsive constrained right */
  width: 64px;
  height: 64px;
  border-radius: var(--radius-full);
  background: var(--accent-blue);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 32px rgba(19, 127, 236, 0.4);
  z-index: 50;
}
.fab svg { width: 32px; height: 32px; }
.fab:hover {
  background: var(--accent-blue-hover);
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(19, 127, 236, 0.5);
}
.fab:active {
  transform: translateY(2px);
}

/* Primary Button */
.btn-primary {
  width: 100%;
  padding: 16px;
  background: var(--accent-blue);
  color: white;
  font-size: var(--text-base);
  font-weight: 700;
  border-radius: var(--radius-lg);
  margin-top: var(--space-4);
}
.btn-primary:active {
  background: var(--accent-blue-hover);
  transform: scale(0.98);
}

/* Utilities */
.hidden { display: none !important; }
.text-center { text-align: center; }
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }