:root {
  --color-primary: #ffffff;
  --color-primary-light: #f9fafb;
  --color-primary-dark: #d7dce2;
  --color-accent: #101010;
  --color-bg: #eef2f5;
  --color-surface: rgba(255, 255, 255, 0.72);
  --color-text: #101418;
  --color-text-secondary: rgba(16, 20, 24, 0.68);
  --color-border: rgba(16, 20, 24, 0.1);
  --color-success: #10b981;
  --color-error: #ef4444;
  --color-warning: #f59e0b;
  --color-info: #3b82f6;

  --font-primary: 'Manrope', system-ui, -apple-system, sans-serif;
  --font-mono: 'IBM Plex Mono', 'JetBrains Mono', monospace;

  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;

  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;
}

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

body {
  min-height: 100vh;
  font-family: var(--font-primary);
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.9), transparent 28%),
    radial-gradient(circle at 85% 12%, rgba(255, 255, 255, 0.45), transparent 24%),
    linear-gradient(180deg, #f6f9fb 0%, #e8eef2 100%);
  color: var(--color-text);
}

button,
input,
select,
textarea {
  font: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

.hidden {
  display: none !important;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 800;
  color: rgba(16, 20, 24, 0.6);
}

.eyebrow::before {
  content: '';
  width: 1.4rem;
  height: 1px;
  background: rgba(16, 20, 24, 0.32);
}

.glass-card {
  position: relative;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.84), rgba(255, 255, 255, 0.56));
  border: 1px solid var(--color-border);
  box-shadow:
    0 12px 30px rgba(16, 20, 24, 0.06),
    inset 0 1px 0 rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-radius: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-md);
  border: none;
  font-size: var(--text-sm);
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-primary {
  background: linear-gradient(180deg, #101010 0%, #1c1c1c 100%);
  color: white;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 18px rgba(16, 16, 16, 0.18);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.64);
  color: var(--color-text);
  border: 1px solid rgba(16, 20, 24, 0.12);
}

.btn-secondary:hover {
  transform: translateY(-1px);
}

.admin-login-screen {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: var(--space-8);
}

.login-card {
  width: min(100%, 38rem);
  padding: var(--space-8);
}

.login-card h1 {
  margin-top: var(--space-3);
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  line-height: 0.95;
}

.login-card p {
  margin-top: var(--space-4);
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.field {
  display: grid;
  gap: var(--space-2);
  margin-top: var(--space-6);
}

.field span {
  color: rgba(16, 20, 24, 0.7);
  font-size: var(--text-sm);
  font-weight: 700;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  min-height: 3.15rem;
  padding: 0 var(--space-4);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(16, 20, 24, 0.1);
  border-radius: 16px;
  color: var(--color-text);
}

.login-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.helper-text {
  margin-top: var(--space-4);
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  line-height: 1.6;
}

.admin-shell {
  display: grid;
  gap: var(--space-4);
  min-height: 100vh;
  padding: var(--space-4);
}

.sidebar {
  display: grid;
  gap: var(--space-6);
  align-content: start;
  padding: var(--space-6);
}

.sidebar-brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
}

.brand-mark {
  width: 3rem;
  height: 3rem;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: linear-gradient(180deg, #ffffff, #dfe6ea);
  color: #111;
  font-weight: 800;
}

.sidebar-brand strong {
  display: block;
}

.sidebar-brand small {
  color: var(--color-text-secondary);
}

.admin-identity {
  display: grid;
  gap: var(--space-3);
  padding: var(--space-4);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.54);
}

.identity-head {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.identity-head img,
.identity-head .avatar-fallback {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: 50%;
  object-fit: cover;
}

.avatar-fallback {
  display: grid;
  place-items: center;
  background: rgba(16, 20, 24, 0.08);
  font-weight: 800;
}

.sidebar-nav {
  display: grid;
  gap: var(--space-2);
}

.nav-link {
  min-height: 3rem;
  padding: 0 var(--space-4);
  border-radius: 16px;
  border: none;
  background: transparent;
  color: var(--color-text-secondary);
  text-align: left;
  cursor: pointer;
  transition: all 0.2s ease;
  font-weight: 700;
}

.nav-link:hover,
.nav-link.is-active {
  color: var(--color-text);
  background: rgba(255, 255, 255, 0.58);
}

.sidebar-footer {
  margin-top: auto;
}

.admin-content {
  display: grid;
  gap: var(--space-4);
}

.dashboard-header,
.panel,
.metric-card {
  padding: var(--space-6);
}

.dashboard-header h2 {
  margin-top: var(--space-2);
  font-size: clamp(1.9rem, 4vw, 3rem);
  line-height: 1;
}

.dashboard-header p {
  margin-top: var(--space-3);
  color: var(--color-text-secondary);
  max-width: 62ch;
}

.metric-grid {
  display: grid;
  gap: var(--space-4);
}

.metric-card span {
  display: block;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(16, 20, 24, 0.56);
  font-weight: 700;
}

.metric-card strong {
  display: block;
  margin-top: var(--space-3);
  font-size: clamp(1.8rem, 4vw, 2.7rem);
}

.panel-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: var(--space-4);
}

.panel-head h3 {
  margin-top: var(--space-2);
  font-size: var(--text-2xl);
}

.table-shell {
  margin-top: var(--space-6);
  overflow: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

thead th {
  padding: 0 0 var(--space-3);
  text-align: left;
  color: rgba(16, 20, 24, 0.56);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

tbody td {
  padding: var(--space-4) 0;
  border-top: 1px solid rgba(16, 20, 24, 0.08);
  vertical-align: top;
}

.table-product {
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  gap: var(--space-3);
  align-items: start;
}

.table-product img {
  width: 4.5rem;
  height: 4.5rem;
  border-radius: 16px;
  object-fit: cover;
}

.table-product strong {
  display: block;
}

.table-product p,
.table-product small,
.muted {
  color: var(--color-text-secondary);
}

.table-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 2rem;
  padding: 0 var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.pill.success {
  color: #065f46;
  background: rgba(16, 185, 129, 0.14);
}

.pill.warning {
  color: #92400e;
  background: rgba(245, 158, 11, 0.14);
}

.pill.error {
  color: #991b1b;
  background: rgba(239, 68, 68, 0.14);
}

.pill.info {
  color: #1d4ed8;
  background: rgba(59, 130, 246, 0.14);
}

.seller-grid {
  display: grid;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

.seller-card {
  padding: var(--space-5);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.62);
  border: 1px solid rgba(16, 20, 24, 0.08);
}

.seller-card-head {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.seller-card-head img,
.seller-card-head .avatar-fallback {
  width: 4rem;
  height: 4rem;
  border-radius: 50%;
}

.seller-card-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.seller-card-metric {
  padding: var(--space-3);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.58);
}

.seller-card-metric span {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-text-secondary);
  text-transform: uppercase;
}

.seller-card-metric strong {
  display: block;
  margin-top: var(--space-2);
  font-size: var(--text-lg);
}

.modal {
  position: fixed;
  inset: 0;
  display: none;
  z-index: 100;
}

.modal.is-open {
  display: block;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(16, 20, 24, 0.3);
  backdrop-filter: blur(8px);
}

.modal-card {
  position: relative;
  width: min(100% - 2rem, 56rem);
  margin: 6vh auto;
  padding: var(--space-6);
  z-index: 2;
}

.modal-close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 2.4rem;
  height: 2.4rem;
  border: none;
  border-radius: 50%;
  background: rgba(16, 20, 24, 0.08);
  cursor: pointer;
  font-size: 1.3rem;
}

.helix-powered {
  text-align: center;
  padding: var(--space-4) var(--space-4) var(--space-6);
}

.helix-powered a {
  font-size: 10px;
  color: #999;
  opacity: 0.35;
  text-decoration: none;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 500;
  transition: opacity 0.2s;
}

.helix-powered a:hover {
  opacity: 0.7;
}

@media (min-width: 768px) {
  .metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .seller-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .admin-shell {
    grid-template-columns: 19rem 1fr;
    align-items: start;
  }

  .sidebar {
    position: sticky;
    top: var(--space-4);
    min-height: calc(100vh - 2rem);
  }

  .metric-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}