/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  border: none;
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all var(--transition-fast);
  text-decoration: none;
  line-height: 1.4;
  white-space: nowrap;
}
.btn svg, .btn i { width: 16px; height: 16px; }

.btn-primary {
  background: var(--color-accent);
  color: white;
  box-shadow: 0 1px 3px rgba(59,130,246,0.3);
}
.btn-primary:hover {
  background: var(--color-accent-hover);
  color: white;
  box-shadow: 0 4px 12px rgba(59,130,246,0.4);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  border: 1px solid var(--color-border);
}
.btn-secondary:hover {
  background: var(--color-surface-hover);
  border-color: var(--color-text-dim);
}

.btn-ghost {
  background: transparent;
  color: var(--color-text-secondary);
}
.btn-ghost:hover {
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
}

.btn-danger {
  background: var(--color-danger);
  color: white;
}
.btn-danger:hover { background: #DC2626; }

.btn-success {
  background: var(--color-success);
  color: white;
}

.btn-sm { padding: 0.375rem 0.75rem; font-size: 0.8125rem; }
.btn-lg { padding: 0.75rem 1.75rem; font-size: 1rem; }
.btn-icon {
  padding: 0.5rem;
  border-radius: var(--radius-sm);
}

/* ===== CARDS ===== */
.card {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all var(--transition-base);
}
.card:hover {
  border-color: var(--color-border-light);
}
.card-elevated {
  box-shadow: var(--shadow-card);
}
.card-elevated:hover {
  box-shadow: var(--shadow-elevated);
  transform: translateY(-2px);
}
.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-lg);
}
.card-header h3 {
  font-size: 1rem;
  font-weight: 600;
}
.card-title {
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: var(--space-md);
}

/* ===== BADGES ===== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.02em;
}
.badge-confirmed {
  background: var(--color-success-soft);
  color: var(--color-success);
}
.badge-pending {
  background: var(--color-warning-soft);
  color: var(--color-warning);
}
.badge-fulfilled {
  background: var(--color-accent-soft);
  color: var(--color-accent);
}
.badge-cancelled {
  background: var(--color-danger-soft);
  color: var(--color-danger);
}
.badge-active {
  background: var(--color-success-soft);
  color: var(--color-success);
}
.badge-inactive {
  background: rgba(100,116,139,0.15);
  color: var(--color-text-muted);
}

/* ===== FORM ELEMENTS ===== */
.form-group {
  margin-bottom: var(--space-lg);
}
.form-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
}
.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.625rem 0.875rem;
  background: var(--color-bg-primary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text-primary);
  font-size: 0.875rem;
  transition: all var(--transition-fast);
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-soft);
}
.form-input::placeholder {
  color: var(--color-text-dim);
}
.form-textarea {
  min-height: 100px;
  resize: vertical;
}
.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394A3B8' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2.5rem;
}

/* ===== TOGGLE SWITCH ===== */
.toggle {
  position: relative;
  width: 44px;
  height: 24px;
  cursor: pointer;
}
.toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}
.toggle-slider {
  position: absolute;
  inset: 0;
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-full);
  transition: var(--transition-fast);
  border: 1px solid var(--color-border);
}
.toggle-slider::before {
  content: '';
  position: absolute;
  width: 18px;
  height: 18px;
  left: 2px;
  top: 2px;
  background: var(--color-text-muted);
  border-radius: 50%;
  transition: var(--transition-fast);
}
.toggle input:checked + .toggle-slider {
  background: var(--color-accent);
  border-color: var(--color-accent);
}
.toggle input:checked + .toggle-slider::before {
  transform: translateX(20px);
  background: white;
}

/* ===== TABLE ===== */
.table-container {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}
table {
  width: 100%;
  border-collapse: collapse;
}
th {
  padding: 0.75rem 1rem;
  text-align: left;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  background: var(--color-bg-primary);
  border-bottom: 1px solid var(--color-border);
}
td {
  padding: 0.875rem 1rem;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border-light);
}
tr:last-child td { border-bottom: none; }
tr:hover td {
  background: var(--color-surface-hover);
}
tr { cursor: pointer; transition: background var(--transition-fast); }

/* ===== MODAL ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: var(--color-overlay);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}
.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}
.modal {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  width: 90%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(20px) scale(0.95);
  transition: transform var(--transition-base);
  box-shadow: var(--shadow-elevated);
}
.modal-overlay.active .modal {
  transform: translateY(0) scale(1);
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-xl);
}
.modal-header h2 { font-size: 1.25rem; }
.modal-close {
  background: none;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}
.modal-close:hover {
  color: var(--color-text-primary);
  background: var(--color-bg-tertiary);
}
.modal-footer {
  display: flex;
  gap: var(--space-md);
  justify-content: flex-end;
  margin-top: var(--space-xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

/* ===== TABS ===== */
.tabs {
  display: flex;
  gap: 0.25rem;
  background: var(--color-bg-primary);
  padding: 4px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  width: fit-content;
}
.tab {
  padding: 0.5rem 1rem;
  border: none;
  background: transparent;
  color: var(--color-text-muted);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}
.tab:hover { color: var(--color-text-secondary); }
.tab.active {
  background: var(--color-accent);
  color: white;
}

/* ===== STAT CARD ===== */
.stat-card {
  padding: var(--space-lg);
}
.stat-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-text-primary);
  line-height: 1.2;
}
.stat-label {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}
.stat-change {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.75rem;
  font-weight: 500;
  margin-top: 0.5rem;
}
.stat-change.positive { color: var(--color-success); }
.stat-change.negative { color: var(--color-danger); }

/* ===== EMPTY STATE ===== */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-3xl);
  text-align: center;
}
.empty-state svg {
  width: 48px;
  height: 48px;
  color: var(--color-text-dim);
  margin-bottom: var(--space-lg);
}
.empty-state p {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  max-width: 300px;
}

/* ===== AVATAR ===== */
.avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.875rem;
  flex-shrink: 0;
}
.avatar-lg { width: 48px; height: 48px; font-size: 1.125rem; }
.avatar-xl { width: 64px; height: 64px; font-size: 1.5rem; }
.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

/* ===== TOAST ===== */
.toast-container {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.toast {
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.75rem 1rem;
  font-size: 0.875rem;
  color: var(--color-text-primary);
  box-shadow: var(--shadow-elevated);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  animation: slideInRight 0.3s ease;
  min-width: 280px;
}
.toast-success { border-left: 3px solid var(--color-success); }
.toast-error { border-left: 3px solid var(--color-danger); }
.toast-info { border-left: 3px solid var(--color-accent); }

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

/* ===== SEARCH ===== */
.search-input {
  position: relative;
}
.search-input input {
  padding-left: 2.5rem;
}
.search-input svg {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--color-text-dim);
}

/* ===== GRID HELPERS ===== */
.grid { display: grid; gap: var(--space-lg); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-auto { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }

@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
}

/* ===== FLEX HELPERS ===== */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }

/* ===== TEXT HELPERS ===== */
.text-sm { font-size: 0.8125rem; }
.text-xs { font-size: 0.75rem; }
.text-muted { color: var(--color-text-muted); }
.text-accent { color: var(--color-accent); }
.text-success { color: var(--color-success); }
.text-danger { color: var(--color-danger); }
.text-right { text-align: right; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ===== SPACING HELPERS ===== */
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }