/* ============================================
   SCIENTIFIC LEAN DESIGN SYSTEM
   Modern, Clean, Minimalist Productivity UI
   ============================================ */

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

/* ============================================
   DESIGN TOKENS
   ============================================ */
:root {
  /* Background */
  --bg-primary: #f8fafc;
  --bg-card: #ffffff;
  --bg-subtle: #f1f5f9;

  /* Text */
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;

  /* Borders */
  --border-subtle: #e2e8f0;
  --border-light: #f1f5f9;

  /* Semantic Colors - Urgent/Do First */
  --urgent-bg: #fee2e2;
  --urgent-border: #ef4444;
  --urgent-text: #991b1b;

  /* Semantic Colors - Plan/Schedule */
  --plan-bg: #dbeafe;
  --plan-border: #3b82f6;
  --plan-text: #1e40af;

  /* Semantic Colors - Delegate/Teams */
  --delegate-bg: #d1fae5;
  --delegate-border: #10b981;
  --delegate-text: #065f46;

  /* Semantic Colors - Energy */
  --energy-bg: #fef3c7;
  --energy-border: #f59e0b;
  --energy-text: #92400e;

  /* Semantic Colors - AI/Assistant */
  --ai-bg: #ede9fe;
  --ai-border: #8b5cf6;
  --ai-text: #5b21b6;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

/* ============================================
   BASE STYLES
   ============================================ */
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: #ffffff;
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   CUSTOM SCROLLBAR
   ============================================ */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

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

::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}

.scrollbar-hide::-webkit-scrollbar {
  display: none;
}

.scrollbar-hide {
  -ms-overflow-style: none;
  scrollbar-width: none;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

/* Smooth Shadow */
.smooth-shadow {
  box-shadow: var(--shadow-md);
}

.smooth-shadow-sm {
  box-shadow: var(--shadow-sm);
}

.smooth-shadow-lg {
  box-shadow: var(--shadow-lg);
}

/* Hover Lift Effect */
.hover-lift {
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.hover-lift:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* Fade In Animation */
.animate-fade-in {
  animation: fadeIn 0.3s ease-in-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(5px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================
   CARD COMPONENTS
   ============================================ */
.card {
  background: var(--bg-card);
  border-radius: 1rem;
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.card-lg {
  border-radius: 1.5rem;
  padding: 2rem;
}

/* ============================================
   SEMANTIC CARDS
   ============================================ */
.card-urgent {
  border-left: 4px solid var(--urgent-border);
  background: var(--bg-card);
}

.card-plan {
  border-left: 4px solid var(--plan-border);
  background: var(--bg-card);
}

.card-delegate {
  border-left: 4px solid var(--delegate-border);
  background: var(--bg-card);
}

.card-energy {
  border-left: 4px solid var(--energy-border);
  background: var(--bg-card);
}

.card-ai {
  background: #1e293b;
  color: white;
}

/* ============================================
   BADGES
   ============================================ */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.5rem;
  font-size: 0.625rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.025em;
  border-radius: 0.375rem;
}

.badge-urgent {
  background: var(--urgent-bg);
  color: var(--urgent-text);
  border: 1px solid var(--urgent-border);
}

.badge-plan {
  background: var(--plan-bg);
  color: var(--plan-text);
  border: 1px solid var(--plan-border);
}

.badge-delegate {
  background: var(--delegate-bg);
  color: var(--delegate-text);
  border: 1px solid var(--delegate-border);
}

.badge-energy {
  background: var(--energy-bg);
  color: var(--energy-text);
  border: 1px solid var(--energy-border);
}

.badge-ai {
  background: var(--ai-bg);
  color: var(--ai-text);
  border: 1px solid var(--ai-border);
}

/* ============================================
   BUTTON STYLES
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 0.75rem;
  transition: all 0.2s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: #ef4444;
  color: white;
  box-shadow: 0 4px 6px -1px rgba(239, 68, 68, 0.2);
}

.btn-primary:hover {
  background: #dc2626;
  box-shadow: 0 10px 15px -3px rgba(239, 68, 68, 0.3);
}

.btn-secondary {
  background: #6366f1;
  color: white;
  box-shadow: 0 4px 6px -1px rgba(99, 102, 241, 0.2);
}

.btn-secondary:hover {
  background: #4f46e5;
  box-shadow: 0 10px 15px -3px rgba(99, 102, 241, 0.3);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
}

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

/* ============================================
   MOBILE OPTIMIZATIONS
   ============================================ */
@media (max-width: 768px) {
  .card {
    padding: 1rem;
    border-radius: 0.75rem;
  }

  .card-lg {
    padding: 1.25rem;
    border-radius: 1rem;
  }
}

/* ============================================
   REMOVE OLD STYLES (Compatibility)
   ============================================ */
.glass-card,
.glass-nav {
  /* Override old glassmorphism */
  background: var(--bg-card) !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
}

/* Remove dark mode (not in lean design) */
.dark,
.dark * {
  color-scheme: light;
}