/* Premium Dashboard UI Theme */
:root {
  --bg-color: #0d1117;
  --panel-bg: rgba(22, 27, 34, 0.7);
  --border-color: rgba(255, 255, 255, 0.1);
  --text-primary: #e6edf3;
  --text-secondary: #8b949e;
  --accent-color: #2f81f7;
  --accent-hover: #388bfd;
  --danger-color: #f85149;
  --danger-hover: #ff6a69;
  --success-color: #238636;
  --success-hover: #2ea043;
  --low-stock: #d29922;
  --critical-stock: #f85149;
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
  --glass-blur: blur(12px);
  --radius: 12px;
  --transition: all 0.2s ease-in-out;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

body {
  background-color: var(--bg-color);
  background-image: radial-gradient(circle at top right, rgba(47, 129, 247, 0.1), transparent 40%),
                    radial-gradient(circle at bottom left, rgba(35, 134, 54, 0.05), transparent 40%);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header {
  padding: 1.5rem 2rem;
  background: var(--panel-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
}

h1 {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.5px;
  background: linear-gradient(to right, #e6edf3, #8b949e);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.header-actions {
  display: flex;
  gap: 1rem;
}

.btn {
  padding: 0.5rem 1rem;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
}

.btn:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--accent-color);
  border-color: var(--accent-color);
  color: white;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

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

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

.btn-danger {
  background: rgba(248, 81, 73, 0.1);
  border-color: rgba(248, 81, 73, 0.4);
  color: var(--danger-color);
}

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

.btn-icon {
  padding: 0.4rem;
  border-radius: 6px;
}

main {
  flex: 1;
  padding: 2rem;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.filters-bar {
  display: flex;
  gap: 1rem;
  background: var(--panel-bg);
  backdrop-filter: var(--glass-blur);
  padding: 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
  box-shadow: var(--glass-shadow);
  flex-wrap: wrap;
  align-items: center;
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  flex: 1;
  min-width: 150px;
}

.filter-group label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  font-weight: 600;
}

input, select {
  width: 100%;
  padding: 0.6rem 0.8rem;
  border-radius: 6px;
  border: 1px solid var(--border-color);
  background: rgba(13, 17, 23, 0.8);
  color: var(--text-primary);
  font-size: 0.875rem;
  transition: var(--transition);
  outline: none;
}

input:focus, select:focus {
  border-color: var(--accent-color);
  box-shadow: 0 0 0 2px rgba(47, 129, 247, 0.3);
}

.search-bar {
  flex: 2;
  min-width: 250px;
  position: relative;
}

.search-bar input {
  padding-left: 2.5rem;
}

.search-icon {
  position: absolute;
  left: 0.8rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-secondary);
}

.table-container {
  background: var(--panel-bg);
  backdrop-filter: var(--glass-blur);
  border-radius: var(--radius);
  border: 1px solid var(--border-color);
  box-shadow: var(--glass-shadow);
  overflow-x: auto;
  overflow-y: hidden;
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

th {
  padding: 1rem;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-secondary);
  font-weight: 600;
  border-bottom: 1px solid var(--border-color);
  background: rgba(255, 255, 255, 0.02);
  white-space: nowrap;
}

td {
  padding: 1rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.875rem;
  vertical-align: middle;
}

tr:hover td {
  background: rgba(255, 255, 255, 0.03);
}

tr:last-child td {
  border-bottom: none;
}

.stock-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.25rem 0.6rem;
  border-radius: 20px;
  font-weight: 600;
  font-size: 0.8rem;
  background: rgba(255, 255, 255, 0.1);
}

.stock-critical {
  background: rgba(248, 81, 73, 0.2);
  color: #ff7b72;
  border: 1px solid rgba(248, 81, 73, 0.4);
}

.stock-low {
  background: rgba(210, 153, 34, 0.2);
  color: #e3b341;
  border: 1px solid rgba(210, 153, 34, 0.4);
}

.stock-good {
  background: rgba(35, 134, 54, 0.2);
  color: #3fb950;
  border: 1px solid rgba(35, 134, 54, 0.4);
}

.actions-cell {
  display: flex;
  gap: 0.5rem;
  justify-content: flex-end;
}

/* Modal Styles */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: var(--transition);
}

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

.modal {
  background: var(--bg-color);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
  width: 90%;
  max-width: 500px;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(20px);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

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

.modal-header {
  padding: 1.25rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h2 {
  font-size: 1.25rem;
  font-weight: 600;
}

.close-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 1.5rem;
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
}

.close-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--text-primary);
}

.modal-body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-row {
  display: flex;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
}

.form-group label {
  font-size: 0.875rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.form-checkbox {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
}

.form-checkbox input {
  width: auto;
}

.modal-footer {
  padding: 1.25rem 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  justify-content: flex-end;
  gap: 1rem;
  background: rgba(255, 255, 255, 0.02);
}

.toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  z-index: 2000;
}

.toast {
  background: var(--panel-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-color);
  color: var(--text-primary);
  padding: 1rem 1.5rem;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  transform: translateX(120%);
  transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.toast.show {
  transform: translateX(0);
}

.toast-error {
  border-left: 4px solid var(--danger-color);
}

.toast-success {
  border-left: 4px solid var(--success-color);
}

/* Loading Spinner */
.loader {
  border: 3px solid rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  border-top: 3px solid var(--accent-color);
  width: 24px;
  height: 24px;
  -webkit-animation: spin 1s linear infinite; /* Safari */
  animation: spin 1s linear infinite;
  display: none;
}

.loader.active {
  display: inline-block;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.empty-state {
  padding: 3rem;
  text-align: center;
  color: var(--text-secondary);
}

.model-info {
  background: rgba(47, 129, 247, 0.1);
  border: 1px solid rgba(47, 129, 247, 0.2);
  padding: 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
}

.model-info h3 {
  color: var(--accent-color);
  margin-bottom: 0.5rem;
}