/* ==========================================
   HABIT PRO - GLOBAL DESIGN SYSTEM & TOKENS
   Modern Ultra-Dark Glassmorphism Aesthetics
   ========================================== */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  /* Color Palette */
  --bg-deep: #090D16;
  --bg-surface: #0E1424;
  --bg-surface-elevated: #131B30;
  
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-bg-hover: rgba(255, 255, 255, 0.06);
  --glass-bg-active: rgba(255, 255, 255, 0.09);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-border-light: rgba(255, 255, 255, 0.12);
  --glass-inner-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.12);
  
  /* Accent Colors */
  --accent-primary: #6366F1;
  --accent-primary-hover: #4F46E5;
  --accent-primary-glow: rgba(99, 102, 241, 0.35);
  
  --accent-success: #10B981;
  --accent-success-hover: #059669;
  --accent-success-glow: rgba(16, 185, 129, 0.35);
  
  --accent-rose: #F43F5E;
  --accent-amber: #F59E0B;
  --accent-cyan: #06B6D4;
  --accent-purple: #8B5CF6;
  
  /* Text Hierarchy */
  --text-main: #F8FAFC;
  --text-muted: #94A3B8;
  --text-subtle: #64748B;

  /* Typography */
  --font-family-primary: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-family-mono: 'JetBrains Mono', monospace;

  /* Doppelrand & Radii */
  --radius-outer: 24px;
  --radius-inner: 16px;
  --radius-pill: 9999px;
  
  /* Easing & Physics */
  --ease-spring: cubic-bezier(0.32, 0.72, 0, 1);
  --transition-fast: 150ms var(--ease-spring);
  --transition-normal: 250ms var(--ease-spring);
  --transition-slow: 400ms var(--ease-spring);

  /* Layout dimensions */
  --sidebar-width: 280px;
  --bottom-nav-height: 72px;
}

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

/* GPU Hardware Acceleration & Render Performance Optimizations */
.card-outer, .card-inner, .btn, .hero-orb, .animate-slide-up {
  transform: translateZ(0);
  backface-visibility: hidden;
  will-change: transform, opacity;
}

.grid-habits {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 20px;
  content-visibility: auto;
  contain-intrinsic-size: 320px;
}

html, body {
  width: 100%;
  min-height: 100vh;
  background-color: var(--bg-deep);
  color: var(--text-main);
  font-family: var(--font-family-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  text-rendering: optimizeLegibility;
}

/* Atmospheric Ambient Mesh Gradient Background */
body::before {
  content: '';
  position: fixed;
  top: -20%;
  left: -10%;
  width: 120%;
  height: 140vh;
  background: 
    radial-gradient(circle at 15% 20%, rgba(99, 102, 241, 0.08) 0%, transparent 45%),
    radial-gradient(circle at 85% 60%, rgba(16, 185, 129, 0.05) 0%, transparent 40%),
    radial-gradient(circle at 50% 85%, rgba(139, 92, 246, 0.06) 0%, transparent 50%);
  z-index: -1;
  pointer-events: none;
}

/* Container Structure */
.app-container {
  display: flex;
  min-height: 100vh;
  width: 100%;
}

.main-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

@media (min-width: 1024px) {
  .main-content {
    margin-left: var(--sidebar-width);
  }
}

.content-wrapper {
  padding: 32px 36px 60px 36px;
  max-width: 1440px;
  margin: 0 auto;
  width: 100%;
}

/* Header Bar & Minimalist iOS Profile Layout */
.header-bar,
.header-bar.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 28px;
  background: rgba(14, 20, 36, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  position: sticky;
  top: 0;
  z-index: 40;
}

.user-profile-compact {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-avatar-sm {
  width: 36px;
  height: 36px;
  min-width: 36px;
  border-radius: 50%;
  border: 1.5px solid var(--accent-primary);
  box-shadow: 0 0 12px var(--accent-primary-glow);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.user-avatar-sm .avatar-inner {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  background: linear-gradient(135deg, var(--bg-surface-elevated), var(--bg-surface));
  color: var(--text-main);
}

.user-avatar-sm img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

.user-titles {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.greeting-sub {
  font-size: 11px;
  color: var(--text-subtle);
  font-weight: 500;
}

.user-name-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: #FFFFFF;
  line-height: 1.2;
  margin: 0;
}

.header-actions-group {
  display: flex;
  align-items: center;
  gap: 8px;
}

.streak-badge-compact {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  background: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.25);
  font-size: 12px;
  font-weight: 700;
  color: var(--accent-amber);
}

.icon-btn-ghost {
  width: 36px;
  height: 36px;
  min-width: 36px;
  padding: 0 !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  border-radius: 10px !important;
  touch-action: manipulation;
}

/* Glassmorphism Double-Bezel Card Engine */
.card-outer {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.02) 100%);
  border-radius: var(--radius-outer);
  padding: 1px; /* Precision 1px Doppelrand Bezel */
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4), var(--glass-inner-shadow);
  transition: all var(--transition-normal);
  position: relative;
}

.card-outer:hover {
  transform: translateY(-2px);
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.5), var(--glass-inner-shadow);
}

.card-inner {
  background: rgba(14, 20, 36, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: calc(var(--radius-outer) - 1px);
  padding: 24px;
  height: 100%;
  display: flex;
  flex-direction: column;
}

/* Card Glow Accent Variations */
.card-glow-primary::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-outer);
  padding: 1px;
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.4) 0%, transparent 60%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.card-glow-success::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-outer);
  padding: 1px;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.4) 0%, transparent 60%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

/* Buttons Design System */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: var(--radius-inner);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  border: none;
  outline: none;
  transition: all var(--transition-normal);
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-primary-hover) 100%);
  color: #FFFFFF;
  box-shadow: 0 4px 16px var(--accent-primary-glow);
}

.btn-primary:hover {
  box-shadow: 0 6px 24px rgba(99, 102, 241, 0.5);
  transform: translateY(-1px);
}

.btn-success {
  background: linear-gradient(135deg, var(--accent-success) 0%, var(--accent-success-hover) 100%);
  color: #FFFFFF;
  box-shadow: 0 4px 16px var(--accent-success-glow);
}

.btn-glass {
  background: var(--glass-bg);
  color: var(--text-main);
  border: 1px solid var(--glass-border);
}

.btn-glass:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-light);
}

.btn-sm {
  padding: 8px 14px;
  font-size: 13px;
  border-radius: 12px;
}

/* Category Badges */
.category-badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.cat-mind { background: rgba(139, 92, 246, 0.15); color: #A78BFA; border: 1px solid rgba(139, 92, 246, 0.25); }
.cat-health { background: rgba(16, 185, 129, 0.15); color: #34D399; border: 1px solid rgba(16, 185, 129, 0.25); }
.cat-productivity { background: rgba(99, 102, 241, 0.15); color: #818CF8; border: 1px solid rgba(99, 102, 241, 0.25); }
.cat-fitness { background: rgba(244, 63, 94, 0.15); color: #FB7185; border: 1px solid rgba(244, 63, 94, 0.25); }
.cat-custom { background: rgba(245, 158, 11, 0.15); color: #FBBF24; border: 1px solid rgba(245, 158, 11, 0.25); }

/* Eyebrow Tag & Typography Elements */
.eyebrow-tag {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent-primary);
  display: inline-block;
  margin-bottom: 8px;
}

h1 { font-size: 2.25rem; font-weight: 800; tracking: -0.02em; }
h2 { font-size: 1.75rem; font-weight: 700; }
h3 { font-size: 1.25rem; font-weight: 700; }
h4 { font-size: 1rem; font-weight: 600; }

/* Form Controls & Modals */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.form-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--text-muted);
}

.form-input, .form-select, .form-textarea {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-inner);
  padding: 10px 14px;
  color: var(--text-main);
  font-family: inherit;
  font-size: 14px;
  outline: none;
  transition: all var(--transition-fast);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 12px var(--accent-primary-glow);
  background: rgba(255, 255, 255, 0.07);
}

.form-textarea {
  min-height: 90px;
  resize: vertical;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(9, 13, 22, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  z-index: 2000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 250ms var(--ease-spring);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  width: 100%;
  max-width: 520px;
}

/* Progress Bar Components */
.progress-bar-container {
  height: 6px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: var(--radius-pill);
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent-primary), var(--accent-success));
  border-radius: var(--radius-pill);
  transition: width 400ms var(--ease-spring);
}