* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: #1f2937;
  background: #f9fafb;
}

.container {
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1rem;
}

header {
  background: #111827;
  color: #fff;
}

nav.container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.9rem;
  padding-bottom: 0.9rem;
}

.logo img {
  display: block;
  height: 28px;
  width: auto;
}

.logo img.logo-on-dark {
  filter: invert(1);
  height: 22px;
}

nav ul {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 1rem;
}

nav a {
  color: #e5e7eb;
  text-decoration: none;
}

nav a:hover {
  color: #fff;
}

main.container {
  background: #fff;
  margin-top: 1rem;
  margin-bottom: 1rem;
  padding: 1.25rem;
  border-radius: 0.5rem;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
}

h1, h2 {
  margin-top: 0;
  color: #111827;
}

.lead {
  font-size: 1.05rem;
  color: #374151;
  max-width: 42rem;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
  margin: 1rem 0 1.5rem;
}

.feature-card {
  padding: 1rem;
  border: 1px solid #e5e7eb;
  border-radius: 0.6rem;
  background: #fff;
}

.feature-card h3 {
  margin: 0 0 0.4rem;
  font-size: 1rem;
}

.feature-card p {
  margin: 0;
  color: #4b5563;
  font-size: 0.95rem;
}

footer.container {
  color: #6b7280;
  font-size: 0.9rem;
  padding-top: 0.75rem;
  padding-bottom: 1.25rem;
}

.form-group {
  margin-bottom: 1rem;
}

label {
  display: block;
  margin-bottom: 0.35rem;
  font-weight: 600;
}

input,
textarea {
  width: 100%;
  padding: 0.6rem 0.7rem;
  border: 1px solid #d1d5db;
  border-radius: 0.4rem;
  font: inherit;
}

button {
  border: 0;
  border-radius: 0.4rem;
  padding: 0.6rem 0.95rem;
  background: #2563eb;
  color: #fff;
  cursor: pointer;
}

button:hover {
  background: #1d4ed8;
}

.alert {
  border-radius: 0.4rem;
  padding: 0.7rem 0.85rem;
  margin-bottom: 1rem;
}

.alert-success {
  background: #ecfdf5;
  color: #065f46;
  border: 1px solid #a7f3d0;
}

.error {
  display: block;
  margin-top: 0.35rem;
  color: #dc2626;
  font-size: 0.875rem;
}

.home-logo-float {
  float: right;
  margin: 0 0 12px 16px;
}

.home-logo-float img {
  max-width: 140px;
  height: auto;
  display: block;
}

.stock-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 1rem;
  margin: 1rem 0 1.5rem;
}

.stock-card {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  padding: 1rem;
  border: 1px solid #e5e7eb;
  border-radius: 0.6rem;
  background: #fff;
  color: #111827;
  text-decoration: none;
}

.stock-card img {
  max-height: 40px;
  width: auto;
  object-fit: contain;
}

.stock-card:hover {
  border-color: #93c5fd;
  background: #eff6ff;
}

.home-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 1rem;
}

.home-actions a {
  display: inline-block;
  padding: 0.55rem 0.9rem;
  border-radius: 0.4rem;
  background: #2563eb;
  color: #fff;
  text-decoration: none;
  font-weight: 600;
}

.home-actions a:hover {
  background: #1d4ed8;
}

.home-actions a.secondary {
  background: #fff;
  color: #1d4ed8;
  border: 1px solid #bfdbfe;
}

.home-actions a.secondary:hover {
  background: #eff6ff;
}

@media (max-width: 768px) {
  .home-logo-float {
    float: none;
    margin: 12px auto;
    text-align: center;
  }

  .home-logo-float img {
    margin: 0 auto;
  }
}