// Import component styles
@import 'styles/modal.scss';
@import 'styles/comments.scss';
@import 'styles/forms.scss';
@import 'styles/markdown.scss';

// CSS Custom Properties for theming
:root {
  --bs-body-bg: #ffffff;
  --bs-body-color: #212529;
  --bs-navbar-bg: #f8f9fa;
  --bs-navbar-color: rgba(0, 0, 0, 0.65);
  --bs-navbar-active-color: rgba(0, 0, 0, 0.9);
  --bs-navbar-brand-color: #0d6efd;
  --bs-hero-bg: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --bs-hero-color: #ffffff;
  --bs-card-bg: #ffffff;
  --bs-card-border: rgba(0, 0, 0, 0.125);
  --bs-feature-bg: #f8f9fa;
  --bs-footer-bg: #e9ecef;
  --bs-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.075);
  --bs-shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.175);
  --bs-primary: #0d6efd;
  --bs-primary-rgb: 13, 110, 253;
  --bs-secondary: #6c757d;
  --bs-danger: #dc3545;
  --bs-danger-rgb: 220, 53, 69;
  --bs-success: #198754;
}

// Dark theme variables
.dark-theme {
  --bs-body-bg: #0d1117;
  --bs-body-color: #f0f6fc;
  --bs-navbar-bg: #161b22;
  --bs-navbar-color: rgba(240, 246, 252, 0.65);
  --bs-navbar-active-color: rgba(240, 246, 252, 0.9);
  --bs-navbar-brand-color: #58a6ff;
  --bs-hero-bg: linear-gradient(135deg, #1f2937 0%, #374151 100%);
  --bs-hero-color: #f0f6fc;
  --bs-card-bg: #21262d;
  --bs-card-border: rgba(240, 246, 252, 0.125);
  --bs-feature-bg: #161b22;
  --bs-footer-bg: #0d1117;
  --bs-shadow: 0 0.125rem 0.25rem rgba(0, 0, 0, 0.3);
  --bs-shadow-lg: 0 1rem 3rem rgba(0, 0, 0, 0.5);
}

// Global styles
* {
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

body {
  background-color: var(--bs-body-bg);
  color: var(--bs-body-color);
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  line-height: 1.6;
}

// Navbar styling
.navbar {
  background-color: var(--bs-navbar-bg) !important;
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--bs-card-border);
  box-shadow: var(--bs-shadow);
  
  .navbar-brand {
    color: var(--bs-navbar-brand-color) !important;
    font-weight: 700;
    font-size: 1.5rem;
    
    &:hover {
      transform: scale(1.05);
      transition: transform 0.2s ease;
    }
  }
  
  .navbar-nav .nav-link {
    color: var(--bs-navbar-color) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    border-radius: 0.375rem;
    margin: 0 0.25rem;
    
    &:hover {
      background-color: rgba(var(--bs-primary-rgb), 0.1);
      color: var(--bs-navbar-active-color) !important;
    }
    
    &.active {
      background-color: rgba(var(--bs-primary-rgb), 0.15);
      color: var(--bs-navbar-active-color) !important;
    }
  }
}

// Hero section
.hero-section {
  background: var(--bs-hero-bg);
  color: var(--bs-hero-color);
  min-height: 60vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  
  &::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    opacity: 0.3;
  }
  
  .container {
    position: relative;
    z-index: 1;
  }
  
  h1 {
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    margin-bottom: 1.5rem;
  }
  
  .lead {
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
    opacity: 0.95;
  }
  
  .btn {
    box-shadow: var(--bs-shadow-lg);
    border: none;
    font-weight: 600;
    
    &:hover {
      transform: translateY(-2px);
      box-shadow: 0 1.5rem 4rem rgba(0, 0, 0, 0.2);
    }
  }
}

// Card styling
.card {
  background-color: var(--bs-card-bg);
  border: 1px solid var(--bs-card-border);
  box-shadow: var(--bs-shadow);
  transition: all 0.3s ease;
  
  &:hover {
    transform: translateY(-5px);
    box-shadow: var(--bs-shadow-lg);
  }
  
  .feature-icon {
    transition: transform 0.3s ease;
  }
  
  &:hover .feature-icon {
    transform: scale(1.1) rotate(5deg);
  }
}

// Theme toggle styling
.form-check-input {
  &:checked {
    background-color: #0d6efd;
    border-color: #0d6efd;
  }
}

// Background sections
.bg-body-secondary {
  background-color: var(--bs-feature-bg) !important;
}

.bg-body-tertiary {
  background-color: var(--bs-footer-bg) !important;
}

// Animations
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.card {
  animation: fadeInUp 0.6s ease forwards;
  
  &:nth-child(1) { animation-delay: 0.1s; }
  &:nth-child(2) { animation-delay: 0.2s; }
  &:nth-child(3) { animation-delay: 0.3s; }
}

// Responsive improvements
@media (max-width: 768px) {
  .hero-section {
    min-height: 50vh;
    text-align: center;
    
    h1 {
      font-size: 2.5rem;
    }
    
    .lead {
      font-size: 1.1rem;
    }
  }
  
  .navbar-brand {
    font-size: 1.25rem !important;
  }
  
  .feature-icon {
    width: 3rem !important;
    height: 3rem !important;
  }
}

// Custom scrollbar for webkit browsers
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bs-body-bg);
}

::-webkit-scrollbar-thumb {
  background: rgba(var(--bs-primary-rgb), 0.3);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(var(--bs-primary-rgb), 0.5);
}

// Focus styles for accessibility
.btn:focus,
.form-check-input:focus,
.nav-link:focus {
  box-shadow: 0 0 0 0.25rem rgba(var(--bs-primary-rgb), 0.25);
}

// Print styles
@media print {
  .navbar,
  .form-check,
  footer {
    display: none !important;
  }
  
  .hero-section {
    background: none !important;
    color: black !important;
  }
}

// Kanban Board Styles
.kanban-board {
  background-color: var(--bs-body-bg);
  min-height: 100vh;
  padding: 2rem 0;

  .kanban-header {
    margin-bottom: 2rem;
    text-align: center;

    h1 {
      color: var(--bs-body-color);
      font-weight: 700;
      margin-bottom: 0.5rem;
    }

    .kanban-description {
      color: var(--bs-navbar-color);
      font-size: 1.1rem;
    }
  }

  .kanban-columns {
    display: flex;
    gap: 1.5rem;
    overflow-x: auto;
    padding: 1rem 0;
    min-height: 70vh;

    @media (max-width: 768px) {
      flex-direction: column;
      gap: 1rem;
    }
  }

  .kanban-column {
    flex: 1;
    min-width: 300px;
    background-color: var(--bs-feature-bg);
    border-radius: 0.75rem;
    padding: 1.5rem;
    box-shadow: var(--bs-shadow);
    border: 1px solid var(--bs-card-border);

    .column-header {
      margin-bottom: 1.5rem;
      padding-bottom: 1rem;
      border-bottom: 2px solid var(--bs-card-border);

      .column-title {
        font-size: 1.25rem;
        font-weight: 600;
        color: var(--bs-body-color);
        margin-bottom: 0.5rem;
        display: flex;
        align-items: center;
        gap: 0.5rem;

        .card-count {
          background-color: var(--bs-navbar-color);
          color: var(--bs-body-bg);
          border-radius: 50%;
          width: 1.5rem;
          height: 1.5rem;
          display: flex;
          align-items: center;
          justify-content: center;
          font-size: 0.75rem;
          font-weight: 700;
        }
      }

      .column-description {
        color: var(--bs-navbar-color);
        font-size: 0.9rem;
        margin: 0;
      }
    }

    .column-cards {
      display: flex;
      flex-direction: column;
      gap: 1rem;
      min-height: 200px;
    }
  }

  .kanban-card {
    background-color: var(--bs-card-bg);
    border: 1px solid var(--bs-card-border);
    border-radius: 0.5rem;
    padding: 1rem;
    box-shadow: var(--bs-shadow);
    transition: all 0.3s ease;
    cursor: pointer;

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

    .card-header {
      margin-bottom: 0.75rem;

      .card-title {
        font-size: 1rem;
        font-weight: 600;
        color: var(--bs-body-color);
        margin-bottom: 0.5rem;
        line-height: 1.3;
      }

      .card-description {
        color: var(--bs-navbar-color);
        font-size: 0.875rem;
        line-height: 1.4;
        margin: 0;
      }
    }

    .card-meta {
      display: flex;
      flex-wrap: wrap;
      gap: 0.5rem;
      margin-bottom: 0.75rem;

      .priority-badge {
        padding: 0.25rem 0.5rem;
        border-radius: 0.25rem;
        font-size: 0.75rem;
        font-weight: 600;
        text-transform: uppercase;

        &.priority-high {
          background-color: rgba(220, 53, 69, 0.1);
          color: #dc3545;
          border: 1px solid rgba(220, 53, 69, 0.2);
        }

        &.priority-medium {
          background-color: rgba(255, 193, 7, 0.1);
          color: #ffc107;
          border: 1px solid rgba(255, 193, 7, 0.2);
        }

        &.priority-low {
          background-color: rgba(25, 135, 84, 0.1);
          color: #198754;
          border: 1px solid rgba(25, 135, 84, 0.2);
        }
      }

      .due-date {
        background-color: rgba(var(--bs-primary-rgb), 0.1);
        color: var(--bs-primary);
        padding: 0.25rem 0.5rem;
        border-radius: 0.25rem;
        font-size: 0.75rem;
        font-weight: 500;
        border: 1px solid rgba(var(--bs-primary-rgb), 0.2);
      }
    }

    .card-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 0.25rem;
      margin-bottom: 0.75rem;

      .tag {
        background-color: var(--bs-navbar-color);
        color: var(--bs-body-bg);
        padding: 0.125rem 0.5rem;
        border-radius: 1rem;
        font-size: 0.7rem;
        font-weight: 500;
        opacity: 0.8;
      }
    }

    .card-assignee {
      display: flex;
      align-items: center;
      gap: 0.5rem;
      margin-bottom: 0.75rem;
      color: var(--bs-navbar-color);
      font-size: 0.875rem;

      .assignee-avatar {
        width: 1.5rem;
        height: 1.5rem;
        border-radius: 50%;
        background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
        display: flex;
        align-items: center;
        justify-content: center;
        color: white;
        font-size: 0.7rem;
        font-weight: 600;
      }
    }

    .card-stats {
      display: flex;
      justify-content: space-between;
      align-items: center;
      padding-top: 0.75rem;
      border-top: 1px solid var(--bs-card-border);

      .stat-item {
        display: flex;
        align-items: center;
        gap: 0.25rem;
        color: var(--bs-navbar-color);
        font-size: 0.75rem;

        i {
          font-size: 0.875rem;
        }
      }

      .checklist-progress {
        display: flex;
        align-items: center;
        gap: 0.5rem;

        .progress-bar {
          width: 40px;
          height: 4px;
          background-color: var(--bs-card-border);
          border-radius: 2px;
          overflow: hidden;

          .progress-fill {
            height: 100%;
            background-color: #198754;
            transition: width 0.3s ease;
          }
        }

        .progress-text {
          font-size: 0.7rem;
          color: var(--bs-navbar-color);
        }
      }
    }
  }
}

// Responsive kanban adjustments
@media (max-width: 992px) {
  .kanban-board {
    .kanban-columns {
      gap: 1rem;
    }

    .kanban-column {
      min-width: 280px;
      padding: 1rem;
    }
  }
}

@media (max-width: 576px) {
  .kanban-board {
    padding: 1rem 0;

    .kanban-column {
      min-width: 100%;
      margin: 0;
    }

    .kanban-card {
      padding: 0.75rem;

      .card-meta {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
      }

      .card-stats {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
      }
    }
  }
}


// Save popup styles
.save-popup {
  position: fixed;
  top: 2rem;
  right: 2rem;
  z-index: 1100;
  animation: slideInRight 0.3s ease-out;
  
  .save-popup-content {
    background-color: var(--bs-success);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: 0.5rem;
    box-shadow: var(--bs-shadow-lg);
    display: flex;
    align-items: center;
    font-weight: 500;
    
    i {
      font-size: 1.25rem;
    }
  }
}

@keyframes slideInRight {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

// Drag and drop styles
.kanban-card {
  transition: all 0.2s ease;
  
  &:hover {
    transform: translateY(-2px);
    box-shadow: var(--bs-shadow-lg);
  }
  
  &.dragging {
    opacity: 0.5;
    transform: rotate(5deg);
  }
}

.kanban-column {
  transition: all 0.2s ease;
  
  &.drag-over {
    background-color: rgba(var(--bs-primary-rgb), 0.1);
    border-color: var(--bs-primary);
    transform: scale(1.02);
  }
}

.column-cards {
  min-height: 200px;
  transition: all 0.2s ease;
  
  &.drag-over {
    background-color: rgba(var(--bs-primary-rgb), 0.05);
    border-radius: 0.5rem;
  }
}