:root {
  color-scheme: dark;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, Noto Sans, sans-serif;
  background: #0B1220;
  color: #E6EDF7;
}

a {
  color: #4F8CFF;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 24px 16px;
}

.header {
  position: sticky;
  top: 0;
  backdrop-filter: blur(10px);
  background: rgba(11, 18, 32, 0.85);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 12px 16px;
  max-width: 1100px;
  margin: 0 auto;
}

.brand {
  display: flex;
  gap: 10px;
  align-items: center;
}

.brand-badge {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: linear-gradient(135deg, #4F8CFF, #8B5CF6);
}

.nav {
  display: flex;
  gap: 12px;
  align-items: center;
  flex-wrap: wrap;
}

.pill {
  padding: 8px 10px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(17, 27, 46, 0.6);
}

.pill:hover {
  background: rgba(17, 27, 46, 0.9);
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}

@media (max-width: 960px) {
  .grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .grid {
    grid-template-columns: 1fr;
  }
}

.card {
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.08);
  background: #0F1A2A;
  box-shadow: 0 10px 30px rgba(0,0,0,0.25);
  overflow: hidden;
}

.card-body {
  padding: 14px;
}

.muted {
  color: #9FB0CC;
}

.banner {
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(17, 27, 46, 0.85);
  padding: 12px 14px;
  margin: 16px 0;
}

.btn {
  display: inline-block;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(17, 27, 46, 0.7);
  color: #E6EDF7;
  cursor: pointer;
}

.btn:hover {
  background: rgba(17, 27, 46, 1);
}

.btn-primary {
  background: #4F8CFF;
  border-color: #4F8CFF;
}

.btn-primary:hover {
  background: #3B78F0;
}

input, textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,0.10);
  background: #111B2E;
  color: #E6EDF7;
  outline: none;
}

textarea {
  min-height: 90px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.two-col {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 16px;
}

@media (max-width: 960px) {
  .two-col {
    grid-template-columns: 1fr;
  }
}

.msg {
  border-radius: 12px;
  padding: 10px 12px;
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(17, 27, 46, 0.85);
  margin: 12px 0;
}

.msg-error {
  border-color: rgba(255, 90, 107, 0.55);
}

.msg-ok {
  border-color: rgba(79, 140, 255, 0.55);
}

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

.table th,
.table td {
  padding: 10px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  text-align: left;
  vertical-align: top;
}

.codebox {
  white-space: pre-wrap;
  word-break: break-word;
  background: #0B1220;
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: 12px;
  padding: 12px;
}

.thumb {
  width: 56px;
  height: 56px;
  border-radius: 10px;
  border: 1px solid rgba(255,255,255,0.10);
  object-fit: cover;
  background: rgba(17, 27, 46, 0.6);
  flex: 0 0 auto;
}

.thumb-fallback {
  background: linear-gradient(135deg, rgba(79,140,255,0.25), rgba(139,92,246,0.20));
}

.product-cover {
  width: 100%;
  height: 140px;
  display: block;
  object-fit: cover;
  background: rgba(17, 27, 46, 0.6);
}

.product-cover-lg {
  height: 260px;
}

.product-cover-fallback {
  width: 100%;
  height: 140px;
  background: linear-gradient(135deg, rgba(79,140,255,0.25), rgba(139,92,246,0.20));
}