/* ============================================
   COMPONENTS.CSS — UI Components
   ============================================ */

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 9px var(--space-4);
  border: 1px solid transparent;
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all var(--transition-base);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
  user-select: none;
  line-height: 1;
}
.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: currentColor;
  opacity: 0;
  transition: opacity var(--transition-fast);
}
.btn:hover::after { opacity: 0.06; }
.btn:active::after { opacity: 0.12; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; pointer-events: none; }

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  box-shadow: 0 1px 2px rgba(26,86,219,0.3), inset 0 1px 0 rgba(255,255,255,0.1);
}
.btn-primary:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); }

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-text);
  border-color: var(--color-border-strong);
  box-shadow: var(--shadow-xs);
}
.btn-secondary:hover { background: var(--color-surface-2); border-color: var(--color-border-strong); }

.btn-ghost {
  background: transparent;
  color: var(--color-text-2);
  border-color: transparent;
}
.btn-ghost:hover { background: var(--color-surface-3); }

.btn-danger {
  background: var(--color-loss);
  color: #fff;
  border-color: var(--color-loss);
}

.btn-success {
  background: var(--color-profit);
  color: #fff;
  border-color: var(--color-profit);
}

.btn-sm {
  padding: 6px var(--space-3);
  font-size: 0.8rem;
}
.btn-lg {
  padding: 12px var(--space-6);
  font-size: 1rem;
  border-radius: var(--radius-lg);
}
.btn-icon {
  padding: 8px;
  border-radius: var(--radius-md);
  width: 36px;
  height: 36px;
}
.btn-icon.btn-sm {
  width: 30px;
  height: 30px;
  padding: 5px;
}

/* === CARDS === */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--transition-base);
}
.card:hover { box-shadow: var(--shadow-md); }

.card-header {
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}
.card-body { padding: var(--space-6); }
.card-footer {
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--color-border);
  background: var(--color-surface-2);
}

/* === STAT CARDS === */
.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5) var(--space-6);
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
  transition: all var(--transition-base);
}
.stat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--card-accent, var(--color-primary));
}
.stat-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-1px);
}
.stat-card-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-3);
  margin-bottom: var(--space-2);
}
.stat-card-value {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1;
  margin-bottom: var(--space-2);
  font-variant-numeric: tabular-nums;
}
.stat-card-change {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: var(--radius-full);
}
.stat-card-change.positive {
  background: var(--color-profit-light);
  color: var(--color-profit);
}
.stat-card-change.negative {
  background: var(--color-loss-light);
  color: var(--color-loss);
}
.stat-card-sub {
  font-size: 0.8rem;
  color: var(--color-text-3);
  margin-top: var(--space-2);
}

/* === INPUTS === */
.input-group { display: flex; flex-direction: column; gap: var(--space-1); }
.input-label {
  font-size: 0.825rem;
  font-weight: 500;
  color: var(--color-text-2);
}
.input {
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 9px var(--space-3);
  color: var(--color-text);
  font-size: 0.9rem;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
  width: 100%;
}
.input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(26,86,219,0.1);
}
.input::placeholder { color: var(--color-text-4); }
.input-error { border-color: var(--color-loss) !important; }
.input-hint { font-size: 0.75rem; color: var(--color-text-3); }
.input-error-msg { font-size: 0.75rem; color: var(--color-loss); }

.input-with-icon { position: relative; }
.input-with-icon .input { padding-left: 38px; }
.input-with-icon .input-icon {
  position: absolute;
  left: 11px; top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-4);
  width: 18px; height: 18px;
  pointer-events: none;
}

.select {
  appearance: none;
  background: var(--color-surface) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E") no-repeat right 10px center;
  background-size: 16px;
  padding-right: 36px;
  cursor: pointer;
}

/* === TABLES === */
.table-container {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}
.table th {
  text-align: left;
  padding: var(--space-3) var(--space-4);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-3);
  background: var(--color-surface-2);
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
  position: sticky;
  top: 0;
  z-index: 1;
}
.table th:hover { color: var(--color-text); }
.table th.sorted { color: var(--color-primary); }
.table th svg { display: inline; vertical-align: middle; margin-left: 4px; }
.table td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-2);
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}
.table tbody tr { transition: background var(--transition-fast); }
.table tbody tr:hover { background: var(--color-surface-2); }
.table tbody tr:last-child td { border-bottom: none; }
.table .text-right { text-align: right; }
.table .text-center { text-align: center; }

/* Stock row */
.stock-name-cell { display: flex; align-items: center; gap: var(--space-3); }
.stock-icon {
  width: 36px; height: 36px;
  border-radius: var(--radius-md);
  background: var(--color-primary-subtle);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
  font-size: 0.75rem;
  color: var(--color-primary);
  flex-shrink: 0;
  letter-spacing: -0.5px;
}
.stock-name { font-weight: 600; color: var(--color-text); }
.stock-isin { font-size: 0.75rem; color: var(--color-text-4); font-family: var(--font-mono); }

/* === BADGES === */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  white-space: nowrap;
}
.badge-blue   { background: var(--color-primary-light); color: var(--color-primary); }
.badge-green  { background: var(--color-profit-light); color: var(--color-profit); }
.badge-red    { background: var(--color-loss-light); color: var(--color-loss); }
.badge-yellow { background: var(--color-warning-light); color: var(--color-warning); }
.badge-gray   { background: var(--color-surface-3); color: var(--color-text-3); }

/* === PROGRESS BAR === */
.progress {
  height: 6px;
  background: var(--color-surface-3);
  border-radius: var(--radius-full);
  overflow: hidden;
}
.progress-bar {
  height: 100%;
  border-radius: var(--radius-full);
  background: var(--color-primary);
  transition: width var(--transition-slow);
}
.progress-bar.green { background: var(--color-profit); }
.progress-bar.red   { background: var(--color-loss); }
.progress-bar.yellow { background: var(--color-warning); }

/* === MODAL === */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15,23,42,0.5);
  backdrop-filter: blur(4px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}
.modal-overlay.open {
  opacity: 1;
  visibility: visible;
}
.modal {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  width: 100%;
  max-width: 540px;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(16px) scale(0.98);
  transition: transform var(--transition-base);
}
.modal-overlay.open .modal {
  transform: translateY(0) scale(1);
}
.modal-lg { max-width: 720px; }
.modal-xl { max-width: 960px; }
.modal-header {
  padding: var(--space-6);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.modal-body { padding: var(--space-6); }
.modal-footer {
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--color-border);
  display: flex;
  gap: var(--space-3);
  justify-content: flex-end;
  background: var(--color-surface-2);
}

/* === TABS === */
.tabs {
  display: flex;
  gap: 2px;
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 4px;
}
.tab-btn {
  flex: 1;
  padding: 8px var(--space-4);
  border-radius: var(--radius-md);
  border: none;
  background: transparent;
  color: var(--color-text-3);
  font-weight: 500;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}
.tab-btn:hover { color: var(--color-text); background: var(--color-surface); }
.tab-btn.active {
  background: var(--color-surface);
  color: var(--color-primary);
  box-shadow: var(--shadow-sm);
  font-weight: 600;
}
.tab-content { display: none; }
.tab-content.active { display: block; }

/* === ALERTS / TOAST === */
.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  font-size: 0.875rem;
}
.alert-info    { background: var(--color-info-light);    border-color: var(--color-info);    color: var(--color-info); }
.alert-success { background: var(--color-profit-light);  border-color: var(--color-profit);  color: var(--color-profit); }
.alert-warning { background: var(--color-warning-light); border-color: var(--color-warning); color: var(--color-warning); }
.alert-danger  { background: var(--color-loss-light);    border-color: var(--color-loss);    color: var(--color-loss); }

/* Toast container */
#toast-container {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  pointer-events: none;
}
.toast {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  padding: var(--space-4) var(--space-5);
  min-width: 280px;
  max-width: 360px;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  pointer-events: all;
  font-size: 0.875rem;
  font-weight: 500;
  animation: toastIn 0.3s ease forwards;
}
.toast.removing { animation: toastOut 0.3s ease forwards; }
.toast-icon { flex-shrink: 0; width: 20px; height: 20px; }
.toast.success .toast-icon { color: var(--color-profit); }
.toast.error   .toast-icon { color: var(--color-loss); }
.toast.info    .toast-icon { color: var(--color-primary); }
.toast.warning .toast-icon { color: var(--color-warning); }
.toast-left { display: flex; flex-direction: column; gap: 2px; flex: 1; }
.toast-title { font-weight: 600; color: var(--color-text); }
.toast-msg { color: var(--color-text-3); font-weight: 400; font-size: 0.8rem; }

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

/* === DROPDOWN === */
.dropdown { position: relative; }
.dropdown-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  min-width: 180px;
  z-index: 500;
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all var(--transition-base);
}
.dropdown-menu.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  font-size: 0.875rem;
  color: var(--color-text-2);
  cursor: pointer;
  transition: background var(--transition-fast);
}
.dropdown-item:hover { background: var(--color-surface-2); color: var(--color-text); }
.dropdown-item.danger { color: var(--color-loss); }
.dropdown-item.danger:hover { background: var(--color-loss-light); }
.dropdown-divider { border: none; border-top: 1px solid var(--color-border); margin: 4px 0; }

/* === FILE UPLOAD === */
.upload-zone {
  border: 2px dashed var(--color-border-strong);
  border-radius: var(--radius-lg);
  padding: var(--space-10) var(--space-8);
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-base);
  background: var(--color-surface-2);
}
.upload-zone:hover, .upload-zone.dragging {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}
.upload-zone input { display: none; }
.upload-zone-icon {
  width: 48px; height: 48px;
  margin: 0 auto var(--space-4);
  color: var(--color-primary);
}
.upload-zone-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--space-2);
}
.upload-zone-sub { font-size: 0.825rem; color: var(--color-text-3); }

/* === EMPTY STATE === */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-16) var(--space-8);
  text-align: center;
}
.empty-state-icon { width: 64px; height: 64px; color: var(--color-text-4); margin-bottom: var(--space-5); }
.empty-state-title { font-size: 1.125rem; font-weight: 600; color: var(--color-text); margin-bottom: var(--space-2); }
.empty-state-sub { font-size: 0.875rem; color: var(--color-text-3); max-width: 320px; }

/* === LOADING === */
.spinner {
  width: 20px; height: 20px;
  border: 2px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: inline-block;
}
.spinner-lg { width: 40px; height: 40px; border-width: 3px; }
@keyframes spin { to { transform: rotate(360deg); } }

.skeleton {
  background: linear-gradient(90deg, var(--color-surface-3) 25%, var(--color-surface-2) 50%, var(--color-surface-3) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}
@keyframes shimmer { 0% { background-position: -200% 0; } 100% { background-position: 200% 0; } }

/* === CHART CONTAINER === */
.chart-container {
  position: relative;
  width: 100%;
  min-height: 240px;
}
.chart-container canvas { display: block; }

/* === TOOLTIP === */
[data-tooltip] { position: relative; }
[data-tooltip]::before {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-text);
  color: var(--color-text-inverse);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast);
  z-index: 100;
}
[data-tooltip]:hover::before { opacity: 1; }

/* === DIVIDER === */
.divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--space-4) 0;
}

/* === NEWS CARD === */
.news-card {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  transition: all var(--transition-base);
  cursor: pointer;
}
.news-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}
.news-card-img {
  width: 80px; height: 60px;
  border-radius: var(--radius-md);
  object-fit: cover;
  flex-shrink: 0;
  background: var(--color-surface-3);
  display: flex; align-items: center; justify-content: center;
}
.news-card-content { flex: 1; min-width: 0; }
.news-card-source { font-size: 0.72rem; color: var(--color-primary); font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; }
.news-card-headline { font-weight: 600; color: var(--color-text); font-size: 0.9rem; line-height: 1.4; margin: 4px 0; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-card-time { font-size: 0.75rem; color: var(--color-text-4); }

/* === WATCHLIST ITEM === */
.watchlist-item {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border);
  transition: background var(--transition-fast);
}
.watchlist-item:hover { background: var(--color-surface-2); }
.watchlist-item:last-child { border-bottom: none; }
.watchlist-price {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.95rem;
}
.watchlist-change { font-size: 0.8rem; font-weight: 600; }