/* CSS Variables from Style Guide */
:root {
  /* Primary Colors */
  --purple-600: hsl(238, 40%, 52%);
  --pink-400: hsl(358, 79%, 66%);
  --purple-200: hsl(239, 57%, 85%);
  --pink-200: hsl(357, 100%, 86%);
  
  /* Neutral Colors */
  --grey-800: hsl(212, 24%, 26%);
  --grey-500: hsl(211, 10%, 45%);
  --grey-100: hsl(223, 19%, 93%);
  --grey-50: hsl(228, 33%, 97%);
  --white: hsl(0, 100%, 100%);
  
  /* Typography */
  --font-family: 'Rubik', sans-serif;
  --font-size-base: 16px;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-bold: 700;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 2.5rem;
  
  /* Border Radius */
  --border-radius: 8px;
  --border-radius-lg: 12px;
}

/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: var(--font-weight-regular);
  line-height: 1.5;
  color: var(--grey-500);
  background-color: var(--grey-50);
  min-height: 100vh;
}

/* Container */
.container {
  max-width: 730px;
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-sm);
}

/* Comments Container */
.comments-container {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

/* Comment Card */
.comment {
  background: var(--white);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  display: flex;
  gap: var(--spacing-md);
}

.comment-content {
  flex: 1;
}

.comment-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-sm);
}

.avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
}

.username {
  font-weight: var(--font-weight-medium);
  color: var(--grey-800);
}

.you-badge {
  background: var(--purple-600);
  color: var(--white);
  padding: 2px 6px;
  border-radius: 2px;
  font-size: 13px;
  font-weight: var(--font-weight-medium);
}

.timestamp {
  color: var(--grey-500);
}

.comment-text {
  margin-bottom: var(--spacing-sm);
  line-height: 1.5;
}

.comment-text .mention {
  color: var(--purple-600);
  font-weight: var(--font-weight-medium);
}

/* Voting */
.vote-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  background: var(--grey-50);
  border-radius: var(--border-radius);
  padding: var(--spacing-xs);
  gap: var(--spacing-xs);
  height: fit-content;
}

.vote-btn {
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
  border-radius: 4px;
  transition: all 0.2s ease;
}

.vote-btn:hover {
  background: var(--purple-200);
}

.vote-btn:hover svg path {
  fill: var(--purple-600);
}

.vote-score {
  font-weight: var(--font-weight-medium);
  color: var(--purple-600);
  font-size: 16px;
}

/* Action Buttons */
.comment-actions {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-sm);
}

.action-btn {
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-weight: var(--font-weight-medium);
  font-size: 16px;
  padding: var(--spacing-xs);
  border-radius: 4px;
  transition: all 0.2s ease;
}

.reply-btn {
  color: var(--purple-600);
}

.reply-btn:hover {
  color: var(--purple-200);
}

.edit-btn {
  color: var(--purple-600);
}

.edit-btn:hover {
  color: var(--purple-200);
}

.delete-btn {
  color: var(--pink-400);
}

.delete-btn:hover {
  color: var(--pink-200);
}

/* Replies */
.replies-container {
  margin-left: var(--spacing-lg);
  padding-left: var(--spacing-lg);
  border-left: 2px solid var(--grey-100);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

/* Forms */
.comment-form {
  background: var(--white);
  border-radius: var(--border-radius);
  padding: var(--spacing-md);
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
}

.comment-form textarea {
  flex: 1;
  border: 1px solid var(--grey-100);
  border-radius: var(--border-radius);
  padding: var(--spacing-sm);
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  resize: vertical;
  min-height: 96px;
}

.comment-form textarea:focus {
  outline: none;
  border-color: var(--purple-600);
}

.comment-form textarea::placeholder {
  color: var(--grey-500);
}

/* Buttons */
.btn {
  border: none;
  border-radius: var(--border-radius);
  padding: var(--spacing-sm) var(--spacing-lg);
  font-family: var(--font-family);
  font-weight: var(--font-weight-medium);
  font-size: 16px;
  cursor: pointer;
  transition: all 0.2s ease;
  text-transform: uppercase;
}

.btn-primary {
  background: var(--purple-600);
  color: var(--white);
}

.btn-primary:hover {
  background: var(--purple-200);
}

.btn-secondary {
  background: var(--grey-500);
  color: var(--white);
}

.btn-secondary:hover {
  background: var(--grey-800);
}

.btn-danger {
  background: var(--pink-400);
  color: var(--white);
}

.btn-danger:hover {
  background: var(--pink-200);
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal {
  background: var(--white);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  max-width: 400px;
  width: 90%;
}

.modal h2 {
  color: var(--grey-800);
  margin-bottom: var(--spacing-sm);
  font-size: 20px;
}

.modal p {
  margin-bottom: var(--spacing-lg);
  line-height: 1.5;
}

.modal-actions {
  display: flex;
  gap: var(--spacing-sm);
}

.modal-actions .btn {
  flex: 1;
}

/* Attribution */
.attribution {
  font-size: 11px;
  text-align: center;
  margin-top: var(--spacing-xl);
}

.attribution a {
  color: hsl(228, 45%, 44%);
}

/* Edit textarea styling */
.edit-textarea {
  width: 100% !important;
  min-height: 96px !important;
  border: 1px solid var(--purple-600) !important;
  border-radius: var(--border-radius) !important;
  padding: var(--spacing-sm) !important;
  font-family: var(--font-family) !important;
  font-size: var(--font-size-base) !important;
  margin-bottom: var(--spacing-sm) !important;
  resize: vertical;
}

.edit-textarea:focus {
  outline: none;
  border-color: var(--purple-600);
}

/* Reply form styling */
.reply-form {
  margin-top: var(--spacing-sm);
}

/* Smooth transitions */
.comment, .modal, .btn, .vote-btn, .action-btn {
  transition: all 0.2s ease;
}

/* Focus styles for accessibility */
.btn:focus,
.vote-btn:focus,
.action-btn:focus,
textarea:focus {
  outline: 2px solid var(--purple-600);
  outline-offset: 2px;
}

/* Hover effects */
.comment:hover {
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

/* Loading state */
.loading {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 200px;
  color: var(--grey-500);
}

/* Empty state */
.empty-state {
  text-align: center;
  padding: var(--spacing-xl);
  color: var(--grey-500);
}

/* Responsive Design */
@media (max-width: 768px) {
  .container {
    padding: var(--spacing-sm);
  }

  .comment {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .comment-header {
    justify-content: space-between;
  }

  .comment-actions {
    order: 1;
    justify-content: space-between;
  }

  .vote-container {
    flex-direction: row;
    order: 2;
    align-self: flex-start;
    width: fit-content;
    gap: var(--spacing-sm);
  }

  .replies-container {
    margin-left: var(--spacing-sm);
    padding-left: var(--spacing-sm);
  }

  .comment-form {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .comment-form .avatar {
    order: -1;
    align-self: flex-start;
  }

  .comment-form .btn {
    align-self: flex-end;
    width: fit-content;
  }

  .modal {
    margin: var(--spacing-sm);
    padding: var(--spacing-lg);
  }

  .modal-actions {
    flex-direction: column;
  }
}

@media (max-width: 480px) {
  .comment-form textarea {
    min-height: 80px;
  }

  .avatar {
    width: 28px;
    height: 28px;
  }

  .vote-container {
    padding: 6px;
  }

  .btn {
    padding: 10px 16px;
    font-size: 14px;
  }
}