/* ============================================================
   COMPONENTS — Reusable UI elements
   ============================================================ */

/* ── Modal Overlay ─────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-base);
}

.modal-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.modal {
  background: rgba(15, 15, 42, 0.95);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transform: translateY(24px) scale(0.95);
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: var(--shadow-xl);
}

.modal-overlay.active .modal {
  transform: translateY(0) scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg) var(--space-xl);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.modal-header h3 {
  font-size: 1.1rem;
}

.modal-close {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--text-tertiary);
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: var(--bg-card);
  color: var(--text-primary);
}

.modal-close svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.modal-body {
  padding: var(--space-xl);
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--space-md);
  padding: var(--space-lg) var(--space-xl);
  border-top: 1px solid var(--border);
  flex-shrink: 0;
}


/* ── Dropdown Menus ────────────────────────────────────────── */
.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-trigger {
  cursor: pointer;
}

.dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 180px;
  background: rgba(15, 15, 42, 0.95);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-xs);
  z-index: var(--z-dropdown);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-8px) scale(0.96);
  transition: all 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: var(--shadow-lg);
}

.dropdown-menu.open {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0) scale(1);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
  cursor: pointer;
  width: 100%;
  text-align: left;
}

.dropdown-item:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
}

.dropdown-item svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
  flex-shrink: 0;
}

.dropdown-divider {
  height: 1px;
  background: var(--border);
  margin: var(--space-xs) 0;
}

.dropdown-item.danger {
  color: var(--accent-red);
}

.dropdown-item.danger:hover {
  background: rgba(239, 68, 68, 0.1);
  color: var(--accent-red);
}


/* ── Tooltips ──────────────────────────────────────────────── */
.tooltip {
  position: relative;
}

.tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(4px);
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-size: 0.75rem;
  font-weight: 500;
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  transition: all 0.2s ease;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  z-index: var(--z-tooltip);
}

.tooltip:hover::after {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}


/* ── Toast Notifications ───────────────────────────────────── */
.toast-container {
  position: fixed;
  top: var(--space-xl);
  right: var(--space-xl);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: rgba(15, 15, 42, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  min-width: 300px;
  max-width: 420px;
  box-shadow: var(--shadow-lg);
  pointer-events: all;
  animation: toastSlideIn 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  transition: all var(--transition-base);
}

.toast.removing {
  animation: toastSlideOut 0.3s ease forwards;
}

@keyframes toastSlideIn {
  from {
    opacity: 0;
    transform: translateX(100%) scale(0.9);
  }
  to {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
}

@keyframes toastSlideOut {
  from {
    opacity: 1;
    transform: translateX(0) scale(1);
  }
  to {
    opacity: 0;
    transform: translateX(100%) scale(0.9);
  }
}

.toast-icon {
  font-size: 1.2rem;
  flex-shrink: 0;
  margin-top: 1px;
}

.toast-content {
  flex: 1;
}

.toast-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.toast-message {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.4;
}

.toast-close {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-tertiary);
  flex-shrink: 0;
  transition: all var(--transition-fast);
}

.toast-close:hover {
  background: var(--bg-card);
  color: var(--text-primary);
}

.toast-close svg {
  width: 14px;
  height: 14px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
}

/* Toast progress bar (auto-dismiss timer) */
.toast-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 3px;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
  animation: toastProgress 4s linear forwards;
}

@keyframes toastProgress {
  from { width: 100%; }
  to   { width: 0%; }
}

/* Toast variants */
.toast.success {
  border-left: 3px solid var(--accent-green);
}

.toast.success .toast-progress {
  background: var(--accent-green);
}

.toast.error {
  border-left: 3px solid var(--accent-red);
}

.toast.error .toast-progress {
  background: var(--accent-red);
}

.toast.warning {
  border-left: 3px solid var(--accent-amber);
}

.toast.warning .toast-progress {
  background: var(--accent-amber);
}

.toast.info {
  border-left: 3px solid var(--accent-cyan);
}

.toast.info .toast-progress {
  background: var(--accent-cyan);
}


/* ── Loading Skeleton ──────────────────────────────────────── */
.skeleton {
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0.04) 25%,
    rgba(255, 255, 255, 0.08) 50%,
    rgba(255, 255, 255, 0.04) 75%
  );
  background-size: 200% 100%;
  animation: skeletonShimmer 1.5s ease-in-out infinite;
  border-radius: var(--radius-sm);
}

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

.skeleton-text {
  height: 14px;
  margin-bottom: var(--space-sm);
  width: 100%;
}

.skeleton-text.short {
  width: 60%;
}

.skeleton-text.shorter {
  width: 40%;
}

.skeleton-circle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
}

.skeleton-card {
  height: 120px;
  border-radius: var(--radius-lg);
}

.skeleton-row {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) 0;
}

.skeleton-row .skeleton-circle {
  flex-shrink: 0;
}

.skeleton-row-lines {
  flex: 1;
}


/* ── Empty States ──────────────────────────────────────────── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-3xl) var(--space-xl);
  text-align: center;
}

.empty-state-icon {
  font-size: 3.5rem;
  margin-bottom: var(--space-lg);
  opacity: 0.5;
  animation: emptyFloat 3s ease-in-out infinite;
}

@keyframes emptyFloat {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-10px); }
}

.empty-state-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.empty-state-message {
  font-size: 0.875rem;
  color: var(--text-tertiary);
  max-width: 320px;
  line-height: 1.6;
  margin-bottom: var(--space-lg);
}


/* ── Pagination ────────────────────────────────────────────── */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: var(--space-lg) 0;
}

.pagination-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}

.pagination-btn:hover {
  background: var(--bg-card);
  color: var(--text-primary);
}

.pagination-btn.active {
  background: var(--gradient-violet);
  color: #fff;
  box-shadow: 0 2px 8px var(--accent-violet-glow);
}

.pagination-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.pagination-btn svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
}

.pagination-info {
  font-size: 0.8rem;
  color: var(--text-tertiary);
  margin: 0 var(--space-sm);
}


/* ── Filter Bar ────────────────────────────────────────────── */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-lg);
}

.filter-bar .form-input,
.filter-bar .form-select {
  width: auto;
  min-width: 160px;
  padding: 8px 14px;
  font-size: 0.85rem;
}

.filter-bar .form-select {
  padding-right: 36px;
}

.filter-search {
  flex: 1;
  min-width: 200px;
  position: relative;
}

.filter-search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--text-tertiary);
  pointer-events: none;
}

.filter-search-icon svg {
  width: 16px;
  height: 16px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
}

.filter-search .form-input {
  padding-left: 36px;
  width: 100%;
}


/* ── Confirm Dialog ────────────────────────────────────────── */
.confirm-dialog {
  text-align: center;
  padding: var(--space-lg) 0;
}

.confirm-dialog-icon {
  font-size: 3rem;
  margin-bottom: var(--space-md);
}

.confirm-dialog-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.confirm-dialog-message {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: var(--space-lg);
}

.confirm-dialog-actions {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
}


/* ── Status Badges ─────────────────────────────────────────── */
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  display: inline-block;
  margin-right: 6px;
}

.status-dot.active   { background: var(--accent-green); box-shadow: 0 0 8px var(--accent-green-glow); }
.status-dot.paid     { background: var(--accent-cyan); }
.status-dot.overdue  { background: var(--accent-red); box-shadow: 0 0 8px var(--accent-red-glow); }
.status-dot.pending  { background: var(--accent-amber); }
.status-dot.canceled { background: var(--text-tertiary); }


/* ── Tabs ──────────────────────────────────────────────────── */
.tabs {
  display: flex;
  gap: 2px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 3px;
  overflow-x: auto;
}

.tab-btn {
  flex: 1;
  padding: 8px 16px;
  text-align: center;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: all var(--transition-base);
  white-space: nowrap;
}

.tab-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}

.tab-btn.active {
  color: #fff;
  background: var(--gradient-violet);
  box-shadow: 0 2px 8px var(--accent-violet-glow);
}


/* ── Responsive Components ─────────────────────────────────── */
@media (max-width: 767px) {
  .toast-container {
    top: var(--space-md);
    right: var(--space-md);
    left: var(--space-md);
  }

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

  .modal {
    max-width: unset;
    margin: var(--space-md);
    max-height: calc(100vh - var(--space-xl));
  }

  .modal-header,
  .modal-body,
  .modal-footer {
    padding-left: var(--space-lg);
    padding-right: var(--space-lg);
  }

  .filter-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .filter-bar .form-input,
  .filter-bar .form-select {
    width: 100%;
    min-width: unset;
  }

  .filter-search {
    min-width: unset;
  }

  .pagination-btn {
    width: 32px;
    height: 32px;
    font-size: 0.8rem;
  }
}