/* ============================
   Δ DELTA 360 — MODERN COMPONENTS
   ============================ */

/* --- BUTTONS --- */
.icon-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  flex-shrink: 0;
  position: relative;
}

.icon-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--bg-hover);
  border-radius: var(--radius-sm);
  opacity: 0;
  transition: opacity var(--transition-fast);
  z-index: -1;
}

.icon-btn:hover::before {
  opacity: 1;
}

.icon-btn:hover {
  color: var(--text-primary);
}

.icon-btn:active {
  transform: scale(0.92);
}

.icon-btn svg {
  width: 20px;
  height: 20px;
  transition: transform var(--transition-fast);
}

.icon-btn:hover svg {
  transform: scale(1.1);
}

/* Status Button */
.status-control {
  display: flex;
  align-items: center;
  justify-content: center;
}

.status-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--bg-secondary);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-full);
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 600;
  transition: all var(--transition-base);
  white-space: nowrap;
  min-width: 110px;
  box-shadow: var(--shadow-xs);
  position: relative;
  overflow: hidden;
}

.status-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--brand-tint);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.status-btn:hover::before {
  opacity: 1;
}

.status-btn:hover {
  border-color: var(--brand);
  color: var(--brand);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.status-btn span {
  position: relative;
  z-index: 1;
}

.status-dot {
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: var(--text-disabled);
  flex-shrink: 0;
  transition: all var(--transition-base);
  box-shadow: 0 0 0 3px var(--bg-secondary);
  position: relative;
  z-index: 1;
}

.status-btn.avl .status-dot {
  background: var(--success);
  box-shadow: 0 0 0 3px var(--success-bg), 0 0 12px rgba(16, 185, 129, 0.4);
  animation: pulse 2s ease-in-out infinite;
}

.status-btn.bsy .status-dot {
  background: var(--danger);
  box-shadow: 0 0 0 3px var(--danger-bg), 0 0 12px rgba(239, 68, 68, 0.4);
}

.status-btn.awy .status-dot {
  background: var(--warning);
  box-shadow: 0 0 0 3px var(--warning-bg), 0 0 12px rgba(245, 158, 11, 0.4);
}

/* Menu */
.menu-wrapper {
  position: relative;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  min-width: 180px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  display: none;
  flex-direction: column;
  z-index: 4000;
  padding: 6px;
  animation: slideDown var(--transition-base);
}

.dropdown-menu.show {
  display: flex;
}

.menu-item {
  background: transparent;
  border: none;
  color: var(--text-primary);
  padding: 11px 14px;
  font-size: 14px;
  cursor: pointer;
  text-align: left;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  white-space: nowrap;
  font-weight: 500;
  position: relative;
}

.menu-item::before {
  content: '';
  position: absolute;
  left: 6px;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 0;
  background: var(--brand);
  border-radius: 2px;
  transition: height var(--transition-fast);
}

.menu-item:hover::before {
  height: 50%;
}

.menu-item:hover {
  background: var(--bg-hover);
  color: var(--brand);
  padding-left: 18px;
}

.menu-divider {
  height: 1px;
  background: var(--border);
  margin: 6px 4px;
}

/* --- MESSAGES --- */
.message-group {
  display: flex;
  flex-direction: column;
  margin-bottom: 6px;
  animation: fadeInUp var(--transition-base);
}

.message-date-divider {
  text-align: center;
  font-size: 11px;
  color: var(--text-tertiary);
  margin: 16px 0;
  padding: 0 12px;
  position: relative;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.message-date-divider::before {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  top: 50%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border) 20%, var(--border) 80%, transparent);
  z-index: -1;
}

.message-date-divider span {
  background: var(--bg-primary);
  padding: 0 12px;
  position: relative;
}

.message {
  display: flex;
  gap: 10px;
  align-items: flex-end;
  padding: 4px 0;
  animation: fadeInUp 0.3s ease-out;
}

.message.self {
  justify-content: flex-end;
}

.message.self .message-avatar {
  order: 2;
}

.message.self .message-bubble {
  order: 1;
  background: linear-gradient(135deg, var(--brand-tint), rgba(249, 115, 22, 0.06));
  color: var(--text-primary);
  border: 1.5px solid var(--brand);
  box-shadow: var(--shadow-xs);
}

.message-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-tint), rgba(249, 115, 22, 0.05));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand);
  font-weight: 700;
  font-size: 11px;
  flex-shrink: 0;
  cursor: pointer;
  transition: all var(--transition-fast);
  border: 2px solid transparent;
  box-shadow: var(--shadow-xs);
}

.message-avatar:hover {
  transform: scale(1.15);
  border-color: var(--brand);
  box-shadow: var(--shadow-sm);
}

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

.message-content {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-width: 70%;
}

.message.self .message-content {
  align-items: flex-end;
}

.message-header {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-primary);
}

.message-author {
  cursor: pointer;
  transition: color var(--transition-fast);
}

.message-author:hover {
  color: var(--brand);
  text-decoration: underline;
}

.message-time {
  font-size: 11px;
  color: var(--text-tertiary);
  font-weight: 500;
  white-space: nowrap;
}

.message-bubble {
  background: var(--bg-secondary);
  color: var(--text-secondary);
  border: 1px solid var(--border-light);
  padding: 10px 14px;
  border-radius: var(--radius);
  word-wrap: break-word;
  line-height: 1.5;
  font-size: 14px;
  box-shadow: var(--shadow-xs);
  transition: all var(--transition-fast);
}

.message-bubble:hover {
  background: var(--bg-tertiary);
}

.message-bubble img {
  max-width: 100%;
  border-radius: var(--radius-sm);
  margin-top: 10px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base);
}

.message-bubble img:hover {
  transform: scale(1.02);
  box-shadow: var(--shadow-md);
}

/* --- TOAST NOTIFICATIONS --- */
#toast-zone {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 6000;
  display: flex;
  flex-direction: column;
  gap: 12px;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-left: 4px solid var(--brand);
  border-radius: var(--radius);
  padding: 16px 18px;
  box-shadow: var(--shadow-xl);
  animation: slideUp var(--transition-slow) cubic-bezier(0.34, 1.56, 0.64, 1);
  max-width: 360px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  backdrop-filter: var(--blur-sm);
  transition: opacity var(--transition-base), transform var(--transition-base);
}

.toast:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl), var(--shadow-brand);
}

.toast-title {
  font-weight: 700;
  color: var(--text-primary);
  font-size: 14px;
  letter-spacing: -0.01em;
}

.toast-body {
  color: var(--text-secondary);
  font-size: 13px;
  line-height: 1.5;
}

/* --- SEND BUTTON --- */
.send-btn {
  background: linear-gradient(135deg, var(--brand) 0%, #fb923c 100%);
  color: white;
  border: none;
  padding: 12px 24px;
  border-radius: var(--radius);
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  transition: all var(--transition-base);
  flex-shrink: 0;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-brand);
  position: relative;
  overflow: hidden;
}

.send-btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--brand-hover) 0%, var(--brand) 100%);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.send-btn:hover::before {
  opacity: 1;
}

.send-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg), var(--shadow-brand);
}

.send-btn:active {
  transform: translateY(0);
}

.send-btn span {
  position: relative;
  z-index: 1;
}

/* --- SEARCH RESULTS --- */
.search-result-item {
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  gap: 8px;
  animation: fadeInUp var(--transition-base);
  position: relative;
}

.search-result-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--brand);
  border-radius: 3px 0 0 3px;
  transform: scaleY(0);
  transition: transform var(--transition-fast);
}

.search-result-item:hover::before {
  transform: scaleY(1);
}

.search-result-item:hover {
  background: var(--bg-hover);
  border-color: var(--brand);
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
}

.result-author {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.result-text {
  font-size: 14px;
  color: var(--text-primary);
  line-height: 1.5;
  word-break: break-word;
}

.result-time {
  font-size: 11px;
  color: var(--text-tertiary);
  font-weight: 500;
}

/* --- BADGES --- */
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  background: var(--bg-tertiary);
  color: var(--text-secondary);
  border: 1px solid var(--border);
}

.badge-success {
  background: var(--success-bg);
  color: var(--success);
  border-color: var(--success);
}

.badge-warning {
  background: var(--warning-bg);
  color: var(--warning);
  border-color: var(--warning);
}

.badge-danger {
  background: var(--danger-bg);
  color: var(--danger);
  border-color: var(--danger);
}

.badge-info {
  background: var(--info-bg);
  color: var(--info);
  border-color: var(--info);
}

.badge-brand {
  background: var(--brand-tint);
  color: var(--brand);
  border-color: var(--brand);
}

/* --- LOADING STATES --- */
.loading-skeleton {
  background: linear-gradient(
    90deg,
    var(--bg-secondary) 0%,
    var(--bg-tertiary) 50%,
    var(--bg-secondary) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-sm);
}

.message-skeleton {
  display: flex;
  gap: 10px;
  padding: 4px 0;
  animation: fadeIn 0.3s ease-out;
}

.message-skeleton-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg-tertiary);
}

.message-skeleton-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.message-skeleton-line {
  height: 12px;
  border-radius: 4px;
  background: var(--bg-tertiary);
}

.message-skeleton-line.short {
  width: 60%;
}

.message-skeleton-line.long {
  width: 85%;
}

/* --- EMPTY STATES --- */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
  text-align: center;
  animation: fadeIn 0.5s ease-out;
}

.empty-state-icon {
  font-size: 64px;
  margin-bottom: 16px;
  opacity: 0.2;
  font-weight: 200;
}

.empty-state-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.empty-state-description {
  font-size: 14px;
  color: var(--text-tertiary);
  max-width: 320px;
  line-height: 1.5;
}

/* --- ANIMATIONS --- */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from { 
    opacity: 0; 
    transform: translateY(12px); 
  }
  to { 
    opacity: 1; 
    transform: translateY(0); 
  }
}

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

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

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.8;
    transform: scale(0.95);
  }
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

@keyframes ripple {
  0% {
    transform: scale(0);
    opacity: 1;
  }
  100% {
    transform: scale(4);
    opacity: 0;
  }
}

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

/* --- RESPONSIVE --- */
@media (max-width: 768px) {
  .send-btn {
    padding: 10px 20px;
    min-height: 40px;
    font-size: 13px;
  }

  .message-content {
    max-width: 80%;
  }

  #toast-zone {
    bottom: 16px;
    right: 16px;
    left: 16px;
  }

  .toast {
    max-width: 100%;
  }
}

@media (max-width: 600px) {
  .message-avatar {
    width: 24px;
    height: 24px;
    font-size: 10px;
  }

  .message-bubble {
    padding: 8px 12px;
    font-size: 13px;
  }

  .icon-btn {
    width: 36px;
    height: 36px;
  }

  .icon-btn svg {
    width: 18px;
    height: 18px;
  }
}

/* --- PRINT --- */
@media print {
  .message {
    page-break-inside: avoid;
  }
  
  .icon-btn,
  .send-btn,
  .status-btn,
  .dropdown-menu,
  #toast-zone {
    display: none;
  }
}