/* ===== NAV ===== */
.app-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 10, 15, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 40px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--fg);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  gap: 8px;
  align-items: center;
}

.nav-link {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--fg-muted);
  text-decoration: none;
  padding: 6px 14px;
  border-radius: 6px;
  transition: color 0.15s, background 0.15s;
}

.nav-link:hover,
.nav-link.active {
  color: var(--fg);
  background: rgba(255, 255, 255, 0.06);
}

.nav-link--admin {
  color: var(--accent);
  opacity: 0.7;
  font-size: 0.8rem;
}

.nav-link--admin:hover,
.nav-link--admin.active {
  opacity: 1;
  background: var(--accent-glow);
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.875rem;
  text-decoration: none;
  padding: 10px 20px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  transition: all 0.15s;
  letter-spacing: 0.01em;
}

.btn--primary {
  background: var(--accent);
  color: #0a0a0f;
}

.btn--primary:hover {
  background: #e8b960;
  transform: translateY(-1px);
}

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

.btn--outline:hover {
  border-color: rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.04);
}

.btn--lg { padding: 14px 28px; font-size: 1rem; }
.btn--sm { padding: 7px 14px; font-size: 0.8rem; }
.btn--xs { padding: 4px 10px; font-size: 0.75rem; border-radius: 5px; }

/* ===== HERO CTA ROW ===== */
.hero-cta-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 8px;
}

/* ===== PAGE HEADER ===== */
.page-header {
  background: var(--bg-raised);
  border-bottom: 1px solid var(--border);
  padding: 56px 40px 48px;
}

.page-header-inner {
  max-width: 1200px;
  margin: 0 auto;
}

.page-header h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 12px;
  line-height: 1.1;
}

.page-sub {
  font-size: 1.05rem;
  color: var(--fg-muted);
  max-width: 560px;
  line-height: 1.65;
  margin-top: 4px;
}

/* ===== APP MAIN ===== */
.app-main {
  min-height: calc(100vh - 60px - 80px);
}

/* ===== SHOWCASE ===== */
.showcase-grid-wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 40px;
}

.showcase-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  transition: border-color 0.2s, transform 0.2s;
}

.product-card:hover {
  border-color: rgba(212, 168, 83, 0.25);
  transform: translateY(-2px);
}

.product-img-wrap {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--bg-raised);
}

.product-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}

.product-card:hover .product-img {
  transform: scale(1.03);
}

.product-badges {
  position: absolute;
  top: 12px;
  left: 12px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.badge {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 4px 10px;
  border-radius: 4px;
  backdrop-filter: blur(8px);
}

.badge--trend {
  background: rgba(212, 168, 83, 0.9);
  color: #0a0a0f;
}

.badge--hot {
  background: rgba(239, 68, 68, 0.85);
  color: #fff;
}

.badge--low {
  background: rgba(34, 197, 94, 0.85);
  color: #0a0a0f;
}

.product-body {
  padding: 24px;
}

.product-category {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}

.product-name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 10px;
  line-height: 1.3;
}

.product-desc {
  font-size: 0.875rem;
  color: var(--fg-muted);
  line-height: 1.6;
  margin-bottom: 20px;
}

.product-financials {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  background: var(--bg-raised);
  border-radius: 8px;
  padding: 14px;
  margin-bottom: 16px;
  border: 1px solid var(--border);
}

.fin-item {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.fin-label {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--fg-muted);
}

.fin-value {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 700;
}

.fin-value--accent { color: var(--accent); }
.fin-value--muted  { color: var(--fg-muted); }
.fin-value--green  { color: #4ade80; }

.product-metrics-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.metric-chip {
  display: flex;
  flex-direction: column;
  gap: 2px;
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
}

.metric-chip--low   { border-color: rgba(74, 222, 128, 0.3); }
.metric-chip--high  { border-color: rgba(239, 68, 68, 0.3); }

.metric-chip-label {
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--fg-muted);
}

.metric-chip-val {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
}

/* ===== DASHBOARD ===== */
.dash-stats-wrap {
  background: var(--bg);
  border-bottom: 1px solid var(--border);
  padding: 32px 40px;
}

.dash-stats {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.dash-table-wrap,
.admin-wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 40px;
}

.dash-section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
}

.dash-section-header h2 {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
}

/* ===== DATA TABLE ===== */
.table-scroll {
  overflow-x: auto;
  border-radius: 10px;
  border: 1px solid var(--border);
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
}

.data-table th {
  background: var(--bg-raised);
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-muted);
  padding: 12px 16px;
  text-align: left;
  white-space: nowrap;
  border-bottom: 1px solid var(--border);
}

.data-table td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

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

.data-table tbody tr {
  background: var(--bg-card);
  transition: background 0.1s;
}

.data-table tbody tr:hover {
  background: var(--bg-raised);
}

.td-num {
  font-family: var(--font-display);
  font-weight: 600;
  white-space: nowrap;
}

.table-product-name {
  font-weight: 500;
  margin-bottom: 2px;
}

.table-product-cat {
  font-size: 0.75rem;
  color: var(--fg-muted);
}

/* Badges: margin, competition, trend */
.margin-badge {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
}

.margin-badge--green  { background: rgba(74,222,128,0.15); color: #4ade80; }
.margin-badge--amber  { background: var(--accent-glow); color: var(--accent); }
.margin-badge--default { background: rgba(255,255,255,0.05); color: var(--fg-muted); }

.comp-badge {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 4px;
  letter-spacing: 0.03em;
}

.comp-badge--low     { background: rgba(74,222,128,0.12); color: #4ade80; }
.comp-badge--medium  { background: var(--accent-glow); color: var(--accent); }
.comp-badge--high    { background: rgba(239,68,68,0.12); color: #f87171; }
.comp-badge--default { color: var(--fg-muted); }

.trend-arrow {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
}

.trend-arrow--up   { color: #4ade80; }
.trend-arrow--down { color: #f87171; }
.trend-arrow--flat { color: var(--fg-muted); }

.status-dot {
  font-family: var(--font-display);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 4px;
}

.status-dot--active   { background: rgba(74,222,128,0.12); color: #4ade80; }
.status-dot--inactive { background: rgba(255,255,255,0.05); color: var(--fg-muted); }

/* ===== BSR CHART ===== */
.bsr-chart-wrap {
  margin-top: 40px;
  padding: 32px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
}

.chart-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 24px;
}

.chart-note {
  font-size: 0.75rem;
  color: var(--fg-muted);
  font-weight: 400;
}

.bsr-bars {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.bsr-row {
  display: grid;
  grid-template-columns: 200px 1fr 80px;
  gap: 12px;
  align-items: center;
}

.bsr-label {
  font-size: 0.85rem;
  color: var(--fg-muted);
  text-align: right;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.bsr-bar-track {
  background: var(--bg-raised);
  border-radius: 4px;
  height: 8px;
  overflow: hidden;
}

.bsr-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), rgba(212, 168, 83, 0.4));
  border-radius: 4px;
  transition: width 0.6s ease;
}

.bsr-val {
  font-family: var(--font-display);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
}

/* ===== ADMIN FORM ===== */
.admin-form-wrap {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 40px;
}

.admin-form {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.form-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 32px;
}

.form-section-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 24px;
  color: var(--accent);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group--full {
  grid-column: 1 / -1;
}

.form-group label {
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--fg-muted);
}

.form-group input,
.form-group textarea,
.form-group select {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: 7px;
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 0.9rem;
  padding: 10px 14px;
  transition: border-color 0.15s;
  outline: none;
  width: 100%;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: rgba(212, 168, 83, 0.5);
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238a8a9a' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

.form-actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
}

/* ===== FLASH ===== */
.flash-banner {
  max-width: 1200px;
  margin: 24px auto 0;
  padding: 12px 40px;
  background: rgba(74, 222, 128, 0.1);
  border: 1px solid rgba(74, 222, 128, 0.25);
  border-radius: 8px;
  color: #4ade80;
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 500;
}

/* ===== ERROR PAGE ===== */
.error-page {
  max-width: 600px;
  margin: 100px auto;
  text-align: center;
  padding: 0 40px;
}

.error-code {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 16px;
}

.error-msg {
  color: var(--fg-muted);
  margin-bottom: 32px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .nav-inner    { padding: 0 20px; }
  .page-header  { padding: 40px 20px 32px; }

  .showcase-grid-wrap { padding: 32px 20px; }
  .showcase-grid { grid-template-columns: 1fr; }

  .dash-stats-wrap { padding: 20px; }
  .dash-stats { grid-template-columns: repeat(2, 1fr); }

  .dash-table-wrap,
  .admin-wrap,
  .admin-form-wrap { padding: 24px 20px; }

  .bsr-row { grid-template-columns: 120px 1fr 60px; }

  .product-financials { grid-template-columns: repeat(2, 1fr); }

  .form-grid { grid-template-columns: 1fr; }
  .form-group--full { grid-column: 1; }

  .hero-cta-row { flex-direction: column; }
  .hero-cta-row .btn { text-align: center; justify-content: center; }
}

@media (max-width: 480px) {
  .dash-stats { grid-template-columns: 1fr; }
}