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

* { 
  margin: 0; 
  padding: 0; 
  box-sizing: border-box; 
  font-family: 'Poppins', sans-serif; 
}

:root {
  --bg-primary: #1a365d;
  --bg-secondary: #2a4365;
  --bg-card: rgba(255,255,255,0.2);
  --bg-header: rgba(255,255,255,0.05);
  --text-primary: #fff;
  --text-secondary: rgba(255,255,255,0.85);
  --border-color: rgba(255,255,255,0.1);
  --shadow-color: rgba(0,0,0,0.2);
  --accent-color: #9AC8FF;
  --popup-bg: rgba(255,255,255,0.95);
  --popup-text: #333;
  --popup-border: #e1e5eb;
}

body.dark-mode {
  --bg-primary: #0a0f1d;
  --bg-secondary: #111827;
  --bg-card: rgba(255,255,255,0.1);
  --bg-header: rgba(255,255,255,0.03);
  --text-primary: #e2e8f0;
  --text-secondary: rgba(226,232,240,0.8);
  --border-color: rgba(255,255,255,0.08);
  --shadow-color: rgba(0,0,0,0.3);
  --accent-color: #7ab0ff;
  --popup-bg: #1e293b;
  --popup-text: #e2e8f0;
  --popup-border: #334155;
}

body {
  background: linear-gradient(135deg, var(--bg-primary), var(--bg-secondary));
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  color: var(--text-primary);
  transition: background 0.3s ease, color 0.3s ease;
  overflow-x: hidden;
}

/* Header */
.kanban-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 32px;
  background: var(--bg-header);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo { 
  width: 40px; 
  height: 40px;
  object-fit: cover;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 8px;
  text-decoration: none;
  color: var(--text-primary);
  transition: all 0.3s ease;
  font-weight: 500;
  border: none;
  background: transparent;
  cursor: pointer;
  white-space: nowrap;
}

.header-btn:hover {
  background: rgba(255,255,255,0.1);
}

.header-btn.active {
  background: rgba(255,255,255,0.2);
}

.user-menu {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 20px;
  background: rgba(255,255,255,0.1);
  cursor: pointer;
  transition: all 0.3s ease;
}

.user-menu:hover {
  background: rgba(255,255,255,0.2);
}

.user-avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  object-fit: cover;
}

/* Notification Center */
.notification-center {
  position: fixed;
  top: 90px;
  right: 20px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.notification {
  background: var(--popup-bg);
  color: var(--popup-text);
  padding: 12px 16px;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  animation: slideIn 0.3s ease;
  font-size: 14px;
  max-width: 300px;
  border: 1px solid var(--border-color);
}

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

/* Kanban Layout */
.kanban {
  display: flex;
  gap: 20px;
  padding: 20px;
  flex: 1;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.2) transparent;
}

.kanban::-webkit-scrollbar {
  height: 8px;
}

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

.kanban::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.2);
  border-radius: 4px;
}

.kanban::-webkit-scrollbar-thumb:hover {
  background: rgba(255,255,255,0.3);
}

.kanban-column {
  flex: 1;
  min-width: 350px;
  max-width: 400px;
  background: var(--bg-card);
  backdrop-filter: blur(10px);
  border-radius: 16px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  transition: transform 0.2s ease;
  border: 1px solid var(--border-color);
}

.kanban-column:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 24px var(--shadow-color);
}

.kanban-title {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border-color);
}

.kanban-title h2 { 
  font-size: 18px; 
  font-weight: 600;
}

.column-count {
  background: rgba(255,255,255,0.2);
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
}

.add-card {
  background: transparent;
  border: none;
  color: var(--text-primary);
  font-size: 18px;
  cursor: pointer;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s ease;
}

.add-card:hover {
  background: rgba(255,255,255,0.2);
  transform: scale(1.1);
}

.kanban-cards {
  display: flex;
  flex-direction: column;
  gap: 16px;
  flex: 1;
  min-height: 100px;
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.2) transparent;
}

.kanban-cards::-webkit-scrollbar {
  width: 6px;
}

.kanban-cards::-webkit-scrollbar-track {
  background: transparent;
}

.kanban-cards::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.2);
  border-radius: 3px;
}

.kanban-cards::-webkit-scrollbar-thumb:hover {
  background: rgba(255,255,255,0.3);
}

/* Cards */
.kanban-card {
  background: var(--bg-card);
  backdrop-filter: blur(8px);
  padding: 20px;
  border-radius: 12px;
  cursor: grab;
  transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
  border: 1px solid var(--border-color);
  position: relative;
}
.kanban-card:active { 
  cursor: grabbing; 
  transform: scale(1.02) rotate(2deg);
  box-shadow: 0 8px 20px var(--shadow-color);
}
.kanban-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 16px var(--shadow-color);
  background: rgba(255,255,255,0.25);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.priority {
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 600;
}

.priority.high {
  background: rgba(239, 68, 68, 0.3);
  color: #fef2f2;
}

.priority.medium {
  background: rgba(245, 158, 11, 0.3);
  color: #fffbeb;
}

.priority.low {
  background: rgba(16, 185, 129, 0.3);
  color: #f0fdf4;
}

.priority.completed {
  background: rgba(139, 92, 246, 0.3);
  color: #faf5ff;
}

.deadline {
  font-size: 11px;
  opacity: 0.8;
}

.kanban-card h3 { 
  font-size: 16px; 
  margin-bottom: 12px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text-primary);
}
.kanban-card p { 
  font-size: 14px; 
  opacity: 0.85;
  line-height: 1.4;
  margin-bottom: 12px;
  color: var(--text-secondary);
}

.kanban-card p .mention {
  color: var(--accent-color);
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.kanban-card p .mention:hover {
  text-decoration: underline;
}

.card-tags {
  display: flex;
  gap: 6px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.tag {
  background: rgba(255,255,255,0.15);
  padding: 4px 10px;
  border-radius: 12px;
  font-size: 11px;
  font-weight: 500;
  color: var(--text-primary);
}

.card-footer { 
  display: flex; 
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 8px;
}

.user-info img { 
  width: 28px; 
  height: 28px; 
  border-radius: 50%; 
  border: 2px solid rgba(255,255,255,0.3);
  transition: all 0.2s;
}

.user-info img:hover {
  transform: scale(1.1);
  border-color: rgba(255,255,255,0.6);
}

.user-info span {
  font-size: 12px;
  opacity: 0.9;
  color: var(--text-primary);
}

.reactions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.reaction-count {
  font-size: 12px;
  opacity: 0.8;
  color: var(--text-primary);
}

.reaction-btn {
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  font-size: 14px;
  opacity: 0.7;
  transition: all 0.2s ease;
  padding: 4px;
}

.reaction-btn:hover {
  opacity: 1;
  transform: scale(1.2);
}

.reaction-btn.active {
  color: #ff375f;
  opacity: 1;
}

/* Comments Section */
.comments-section {
  border-top: 1px solid var(--border-color);
  padding-top: 12px;
  margin-top: 8px;
}

.comment {
  display: flex;
  gap: 10px;
  margin-bottom: 12px;
  animation: fadeIn 0.3s ease;
}

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

.comment img {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  flex-shrink: 0;
  object-fit: cover;
}

.comment-content {
  flex: 1;
}

.comment-content strong {
  font-size: 13px;
  margin-right: 6px;
  color: var(--text-primary);
}

.comment-content p {
  font-size: 13px;
  margin: 4px 0;
  line-height: 1.4;
  opacity: 0.9;
  color: var(--text-secondary);
}

.comment-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 4px;
}

.comment-actions span,
.comment-actions button {
  font-size: 11px;
  opacity: 0.7;
  color: var(--text-primary);
  background: none;
  border: none;
  cursor: pointer;
  transition: opacity 0.2s;
}

.comment-actions button:hover {
  opacity: 1;
}

.like-comment.active {
  color: #ff375f;
}

.comment-reply {
  display: flex;
  gap: 10px;
  margin-top: 8px;
  margin-left: 20px;
  padding-left: 10px;
  border-left: 2px solid var(--border-color);
}

.add-comment {
  display: flex;
  gap: 10px;
  margin-top: 12px;
  align-items: center;
}

.add-comment img {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  flex-shrink: 0;
  object-fit: cover;
}

.comment-input {
  flex: 1;
  display: flex;
  gap: 8px;
}

.comment-input input {
  flex: 1;
  background: rgba(255,255,255,0.1);
  border: 1px solid var(--border-color);
  border-radius: 18px;
  padding: 8px 12px;
  color: var(--text-primary);
  font-size: 13px;
  outline: none;
  transition: all 0.2s;
}

.comment-input input:focus {
  border-color: var(--accent-color);
  background: rgba(255,255,255,0.15);
}

.comment-input input::placeholder {
  color: rgba(255,255,255,0.6);
}

.post-comment {
  background: var(--accent-color);
  color: #13295F;
  border: none;
  border-radius: 12px;
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  white-space: nowrap;
}

.post-comment:hover {
  background: #85b8ff;
  transform: translateY(-1px);
}

/* Popup */
.popup-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;
  backdrop-filter: blur(4px);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
}

.popup-overlay:not(.hidden) {
  opacity: 1;
  visibility: visible;
}

.popup-card {
  background: var(--popup-bg);
  padding: 24px;
  border-radius: 16px;
  color: var(--popup-text);
  width: 450px;
  max-height: 90vh;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: 0 20px 40px rgba(0,0,0,0.3);
  transform: translateY(20px);
  transition: transform 0.3s ease;
  border: 1px solid var(--border-color);
}

.popup-overlay:not(.hidden) .popup-card {
  transform: translateY(0);
}

.popup-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--accent-color);
  margin-bottom: 8px;
  text-align: center;
}

.input-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.input-group label {
  font-weight: 500;
  color: var(--popup-text);
  font-size: 14px;
}

.popup-card input, 
.popup-card textarea,
.popup-card select {
  padding: 12px;
  border: 2px solid var(--popup-border);
  border-radius: 8px;
  outline: none;
  width: 100%;
  font-size: 14px;
  transition: all 0.2s ease;
  background: var(--popup-bg);
  color: var(--popup-text);
}

.popup-card input:focus, 
.popup-card textarea:focus,
.popup-card select:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(154, 200, 255, 0.2);
}

.popup-card textarea {
  min-height: 80px;
  resize: vertical;
}

/* Custom Select Styles */
.custom-select {
  position: relative;
  width: 100%;
}

.custom-select select {
  appearance: none;
  -webkit-appearance: none;
  width: 100%;
  padding: 12px 16px 12px 48px;
  border: 2px solid var(--popup-border);
  border-radius: 8px;
  background-color: var(--popup-bg);
  font-size: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
  background-image: none;
  color: var(--popup-text);
}

.custom-select select:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(154, 200, 255, 0.2);
}

.select-arrow {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 0;
  height: 0;
  border-left: 6px solid transparent;
  border-right: 6px solid transparent;
  border-top: 6px solid #666;
  pointer-events: none;
}

/* User images in select options */
.custom-select::before {
  content: '';
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background-size: cover;
  background-position: center;
  z-index: 2;
  pointer-events: none;
  border: 2px solid #fff;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

#task-user option {
  padding-left: 40px;
  background-repeat: no-repeat;
  background-position: 8px center;
  background-size: 24px;
  height: 32px;
  display: flex;
  align-items: center;
  font-size: 14px;
}

/* Dynamic background images for selected option */
#task-user option[value="profile1.jpg"] { background-image: url('src/images/profile1.jpg'); }
#task-user option[value="profile2.jpg"] { background-image: url('src/images/profile2.jpg'); }
#task-user option[value="profile3.jpg"] { background-image: url('src/images/profile3.jpg'); }
#task-user option[value="profile4.jpg"] { background-image: url('src/images/profile4.jpg'); }
#task-user option[value="profile5.jpg"] { background-image: url('src/images/profile5.jpg'); }
#task-user option[value="profile6.jpg"] { background-image: url('src/images/profile6.jpg'); }
#task-user option[value="profile7.jpg"] { background-image: url('src/images/profile7.jpg'); }
#task-user option[value="profile8.jpg"] { background-image: url('src/images/profile8.jpg'); }

.popup-actions {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 8px;
  padding-top: 16px;
  border-top: 1px solid var(--popup-border);
}

.popup-actions button {
  border: none;
  padding: 10px 20px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 500;
  font-size: 14px;
  transition: all 0.2s ease;
  min-width: 100px;
}

#cancel { 
  background: #f1f3f5; 
  color: #495057;
}
#cancel:hover {
  background: #e9ecef;
  transform: translateY(-2px);
}

#save { 
  background: var(--accent-color); 
  color: #13295F; 
}
#save:hover {
  background: #85b8ff;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(154, 200, 255, 0.4);
}

/* Emoji Picker */
.emoji-picker {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: var(--popup-bg);
  border-radius: 12px;
  padding: 12px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.2);
  z-index: 1001;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s ease;
  border: 1px solid var(--border-color);
}

.emoji-picker:not(.hidden) {
  transform: translateY(0);
  opacity: 1;
}

.emoji-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
  font-weight: 500;
  color: var(--popup-text);
}

.close-emoji {
  background: none;
  border: none;
  font-size: 16px;
  cursor: pointer;
  color: var(--text-secondary);
}

.emoji-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.emoji-btn {
  background: none;
  border: none;
  font-size: 20px;
  cursor: pointer;
  padding: 6px;
  border-radius: 6px;
  transition: all 0.2s;
}

.emoji-btn:hover {
  background: rgba(255,255,255,0.1);
  transform: scale(1.2);
}

/* Reaction bubbles */
.reaction-bubble {
  position: absolute;
  background: rgba(255,255,255,0.9);
  border-radius: 20px;
  padding: 4px 8px;
  font-size: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
  display: flex;
  align-items: center;
  gap: 4px;
  z-index: 10;
  animation: floatUp 1s ease forwards;
}

@keyframes floatUp {
  0% {
    opacity: 1;
    transform: translateY(0);
  }
  100% {
    opacity: 0;
    transform: translateY(-30px);
  }
}

/* Floating Button */
.floating-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear(135deg, var(--accent-color), #13295F);
  border: none;
  color: white;
  font-size: 20px;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(0,0,0,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
  transition: all 0.3s ease;
}

.floating-btn:hover {
  transform: scale(1.1) rotate(90deg);
  box-shadow: 0 6px 16px rgba(0,0,0,0.4);
}

/* Drag and drop animations */
.kanban-card.dragging {
  opacity: 0.8;
  transform: rotate(5deg) scale(1.05);
  box-shadow: 0 10px 25px var(--shadow-color);
}

.kanban-cards.drag-over {
  background: rgba(255,255,255,0.1);
  border-radius: 8px;
  transition: background 0.3s ease;
}

/* Responsivo */
@media (max-width: 1200px) {
  .kanban {
    flex-wrap: wrap;
    justify-content: center;
  }
  
  .kanban-column {
    min-width: 320px;
    max-width: 100%;
    flex: 1 1 320px;
  }
}

@media (max-width: 992px) {
  .kanban-column {
    min-width: 280px;
    flex: 1 1 280px;
  }
  
  .header-right {
    gap: 8px;
  }
  
  .header-btn {
    padding: 8px 12px;
    font-size: 14px;
  }
}

@media (max-width: 768px) {
  .kanban { 
    flex-direction: column; 
    padding: 12px;
    gap: 16px;
  }
  
  .kanban-column {
    min-width: auto;
    max-width: 100%;
  }
  
  .popup-card {
    width: 90%;
    max-width: 340px;
    padding: 20px;
  }
  
  .popup-actions {
    flex-direction: column;
  }
  
  .popup-actions button {
    width: 100%;
  }
  
  .emoji-picker {
    bottom: 10px;
    right: 10px;
    left: 10px;
  }
  
  .emoji-grid {
    grid-template-columns: repeat(8, 1fr);
  }
  
  .header-right {
    gap: 6px;
  }
  
  .header-btn span {
    display: none;
  }
  
  .user-menu span {
    display: none;
  }
  
  .kanban-header {
    padding: 12px 16px;
  }
  
  .header-left h1 {
    font-size: 18px;
  }
}

@media (max-width: 576px) {
  .header-left h1 {
    font-size: 16px;
  }
  
  .logo {
    width: 32px;
    height: 32px;
  }
  
  .notification-center {
    right: 10px;
    left: 10px;
    align-items: center;
  }
  
  .notification {
    max-width: 100%;
    width: 100%;
  }
  
  .floating-btn {
    bottom: 16px;
    right: 16px;
    width: 48px;
    height: 48px;
    font-size: 18px;
  }
}

/* Modo escuro para ícones específicos */
body.dark-mode .reaction-btn:not(.active) {
  color: var(--text-primary);
}

body.dark-mode .post-comment {
  color: #13295F;
}

/* Melhorias de acessibilidade */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Foco visível para acessibilidade */
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent-color);
  outline-offset: 2px;
}