:root {
  --bg:       #0f1117;
  --surface:  #181c27;
  --card:     #1e2333;
  --border:   rgba(255,255,255,0.08);
  --accent:   #6c8fff;
  --accent2:  #a78bfa;
  --text:     #e8eaf0;
  --muted:    #8892aa;
  --danger:   #f87171;
  --success:  #4ade80;
  --warn:     #fbbf24;
  --radius:   10px;
  --font:     'DM Sans', system-ui, sans-serif;
}

@media (prefers-color-scheme: light) {
  :root {
    --bg:      #f0f2f7;
    --surface: #ffffff;
    --card:    #ffff;
    --border:  rgba(0,0,0,0.09);
    --text:    #1a1f2e;
    --muted:   #6b7280;
  }
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  font-size: 14px;
}

/* NAV */
nav {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0 20px;
  height: 52px;
  display: flex;
  align-items: center;
  gap: 6px;
}

nav a {
  color: var(--muted);
  text-decoration: none;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 13px;
  transition: background .15s, color .15s;
}

nav a:hover {
  background: var(--border);
  color: var(--text);
}

nav a.active {
  color: var(--accent);
  background: rgba(108,143,255,.1);
}

nav .sep { flex: 1; }

nav .brand {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -.3px;
  margin-right: 16px;
}

/* LAYOUT */
.layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  height: calc(100vh - 52px);
  overflow: hidden;
}

/* SIDEBAR */
.sidebar {
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.sidebar-head {
  padding: 14px;
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.sidebar-head h2 {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--muted);
}

/* SEARCH */
.search-row { display: flex; gap: 6px; align-items: center; }
.search-wrap { position: relative; flex: 1; }

.search-wrap svg.ico-search {
  position: absolute;
  left: 9px;
  top: 50%;
  transform: translateY(-50%);
  opacity: .35;
  pointer-events: none;
}

.search-wrap input {
  width: 100%;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  font-family: var(--font);
  font-size: 13px;
  padding: 8px 10px 8px 30px;
  outline: none;
  transition: border-color .15s;
}

.search-wrap input:focus { border-color: var(--accent); }
.search-wrap input::placeholder { color: var(--muted); }

/* EAN */
.ean-badge {
  display: none;
  font-size: 10px;
  background: rgba(108,143,255,.18);
  color: var(--accent);
  border-radius: 4px;
  padding: 2px 7px;
  font-weight: 600;
  white-space: nowrap;
}

.ean-badge.visible { display: inline; }

/* RESULTS */
.results { flex: 1; overflow-y: auto; padding: 8px; }

.results::-webkit-scrollbar { width: 4px; }
.results::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}

.result-item {
  padding: 10px 12px;
  border-radius: 8px;
  cursor: pointer;
  transition: background .12s;
  border: 1px solid transparent;
}

.result-item:hover { background: var(--card); }

.result-item.selected {
  background: rgba(108,143,255,.12);
  border-color: rgba(108,143,255,.3);
}

.result-item .ri-name {
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 3px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.result-item .ri-meta {
  font-size: 11px;
  color: var(--muted);
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.ri-stock { color: var(--success); }
.ri-stock.low { color: var(--warn); }
.ri-stock.out { color: var(--danger); }

.ri-ean {
  font-family: monospace;
  opacity: .65;
}

/* SIDEBAR FOOT */
.sidebar-foot {
  padding: 10px;
  border-top: 1px solid var(--border);
}

.hint {
  text-align: center;
  color: var(--muted);
  font-size: 12px;
  padding: 24px 12px;
  line-height: 1.6;
}

/* PANEL */
.panel {
  overflow-y: auto;
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.panel::-webkit-scrollbar { width: 4px; }
.panel::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}

.panel-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  gap: 12px;
}

.panel-empty svg { opacity: .2; }

.panel-empty p {
  font-size: 13px;
  text-align: center;
  line-height: 1.6;
}

/* FORM */
.form-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
}

.form-card h3 {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--muted);
  margin-bottom: 14px;
}

.form-row {
  display: grid;
  gap: 10px;
  margin-bottom: 10px;
}

.form-row:last-child { margin-bottom: 0; }

.form-row.cols-2 { grid-template-columns: 1fr 1fr; }
.form-row.cols-3 { grid-template-columns: 1fr 1fr 1fr; }
.form-row.cols-4 { grid-template-columns: 1fr 1fr 1fr 1fr; }

.field label {
  display: block;
  font-size: 11px;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 4px;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 7px;
  color: var(--text);
  font-family: var(--font);
  font-size: 13px;
  padding: 8px 11px;
  outline: none;
  transition: border-color .15s;
}

.field textarea {
  min-height: 72px;
  resize: vertical;
  line-height: 1.5;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  border-color: var(--accent);
}

.field select option { background: var(--surface); }

/* EAN WRAP */
.ean-wrap { position: relative; }

.ean-wrap input {
  padding-right: 32px;
  font-family: monospace;
  letter-spacing: .04em;
}

.ean-wrap .ean-icon {
  position: absolute;
  right: 9px;
  top: 50%;
  transform: translateY(-50%);
  opacity: .25;
  pointer-events: none;
}

/* PRICE */
.price-hint {
  font-size: 11px;
  color: var(--muted);
  margin-top: 4px;
}

.price-hint span {
  color: var(--accent);
  font-weight: 600;
}

/* TOGGLE */
.toggle-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-top: 20px;
}

.toggle-wrap > label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--muted);
}

.toggle {
  position: relative;
  width: 38px;
  height: 22px;
  flex-shrink: 0;
}

.toggle input { opacity: 0; width: 0; height: 0; }

.toggle-track {
  position: absolute;
  inset: 0;
  background: var(--border);
  border-radius: 11px;
  cursor: pointer;
  transition: background .2s;
}

.toggle input:checked + .toggle-track { background: var(--accent); }

.toggle-track::after {
  content: '';
  position: absolute;
  left: 3px;
  top: 3px;
  width: 16px;
  height: 16px;
  background: white;
  border-radius: 50%;
  transition: transform .2s;
}

.toggle input:checked + .toggle-track::after {
  transform: translateX(16px);
}

/* IMAGES */
.img-zone {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 14px;
}

.img-preview {
  width: 72px;
  height: 72px;
  border-radius: 8px;
  border: 1px solid var(--border);
  object-fit: cover;
  flex-shrink: 0;
}

.img-placeholder {
  width: 72px;
  height: 72px;
  border-radius: 8px;
  border: 1px dashed var(--border);
  background: var(--surface);
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 10px;
  color: var(--muted);
}

.img-info {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.6;
}

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: 8px;
  font-family: var(--font);
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: opacity .15s, transform .1s;
}

.btn:active { transform: scale(.97); }
.btn:disabled { opacity: .4; cursor: not-allowed; }

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover:not(:disabled) { opacity: .88; }

.btn-ghost {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  background: var(--card);
  color: var(--text);
}

.btn-new {
  width: 100%;
  justify-content: center;
  background: rgba(108,143,255,.1);
  color: var(--accent);
  border: 1px dashed rgba(108,143,255,.3);
}

.btn-new:hover {
  background: rgba(108,143,255,.18);
}

/* FEEDBACK */
.feedback {
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 13px;
  display: none;
}

.feedback.ok {
  background: rgba(74,222,128,.1);
  color: var(--success);
  border: 1px solid rgba(74,222,128,.2);
  display: flex;
  gap: 8px;
  align-items: center;
}

.feedback.err {
  background: rgba(248,113,113,.1);
  color: var(--danger);
  border: 1px solid rgba(248,113,113,.2);
  display: flex;
  gap: 8px;
  align-items: center;
}

/* SPINNER */
.spinner {
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255,255,255,.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin .6s linear infinite;
  display: none;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* HEADER */
.panel-header {
  display: flex;
  align-items: center;
  gap: 10px;
}

.panel-header h2 {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -.3px;
}

.badge {
  font-size: 10px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  padding: 3px 8px;
  border-radius: 20px;
}

.badge-edit {
  background: rgba(108,143,255,.15);
  color: var(--accent);
}

.badge-new {
  background: rgba(167,139,250,.15);
  color: var(--accent2);
}