/* GTIN-Check Landing Page Styles */

:root {
  --color-primary: #1a56db;
  --color-primary-dark: #1340a8;
  --color-primary-light: #e8effc;
  --color-success: #16a34a;
  --color-success-bg: #f0fdf4;
  --color-error: #dc2626;
  --color-error-bg: #fef2f2;
  --color-text: #1f2937;
  --color-text-light: #6b7280;
  --color-bg: #ffffff;
  --color-bg-alt: #f9fafb;
  --color-border: #e5e7eb;
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --max-width: 720px;
  --spacing: 1.5rem;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Layout */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing);
}

section {
  padding: 3rem 0;
}

section + section {
  border-top: 1px solid var(--color-border);
}

/* Header */
.site-header {
  padding: 1rem 0;
  border-bottom: 1px solid var(--color-border);
}

.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
}

.logo span {
  color: var(--color-text-light);
  font-weight: 400;
}

/* Hero Section */
.hero {
  padding: 3rem 0 2rem;
  text-align: center;
}

.hero h1 {
  font-size: 1.75rem;
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 0.75rem;
  color: var(--color-text);
}

.hero .subtitle {
  font-size: 1.125rem;
  color: var(--color-text-light);
  margin-bottom: 2rem;
}

/* GTIN Input */
.gtin-form {
  max-width: 480px;
  margin: 0 auto;
}

.input-group {
  display: flex;
  gap: 0.5rem;
}

.gtin-input {
  flex: 1;
  padding: 0.75rem 1rem;
  font-size: 1.125rem;
  font-family: ui-monospace, "Cascadia Code", "Fira Code", monospace;
  border: 2px solid var(--color-border);
  border-radius: 0.5rem;
  outline: none;
  transition: border-color 0.15s;
  letter-spacing: 0.05em;
}

.gtin-input:focus {
  border-color: var(--color-primary);
}

.gtin-input::placeholder {
  font-family: var(--font-sans);
  letter-spacing: normal;
  color: var(--color-text-light);
  opacity: 0.6;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: background-color 0.15s, transform 0.1s;
  text-decoration: none;
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.98);
}

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

.btn-primary:hover {
  background: var(--color-primary-dark);
}

.btn-secondary {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.btn-secondary:hover {
  background: #d4e0f7;
}

/* Result */
.result {
  margin-top: 1.25rem;
  padding: 1rem 1.25rem;
  border-radius: 0.5rem;
  font-size: 1rem;
  display: none;
}

.result.visible {
  display: block;
}

.result.success {
  background: var(--color-success-bg);
  border: 1px solid var(--color-success);
  color: #15803d;
}

.result.error {
  background: var(--color-error-bg);
  border: 1px solid var(--color-error);
  color: #b91c1c;
}

.result-icon {
  font-weight: 700;
  margin-right: 0.5rem;
}

/* Info Section */
.info h2 {
  font-size: 1.375rem;
  font-weight: 700;
  margin-bottom: 1rem;
}

.info p {
  margin-bottom: 1rem;
  color: var(--color-text-light);
}

.info ul {
  list-style: none;
  padding: 0;
}

.info ul li {
  padding: 0.375rem 0;
  padding-left: 1.5rem;
  position: relative;
  color: var(--color-text-light);
}

.info ul li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: 700;
}

/* Upsell Section */
.upsell {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.upsell h2 {
  font-size: 1.375rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.upsell .lead {
  color: var(--color-text-light);
  margin-bottom: 1.5rem;
}

.feature-list {
  list-style: none;
  padding: 0;
  margin-bottom: 1.5rem;
}

.feature-list li {
  padding: 0.5rem 0;
  padding-left: 1.75rem;
  position: relative;
  font-size: 0.9375rem;
}

.feature-list li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  color: var(--color-primary);
  font-weight: 700;
}

.badge {
  display: inline-block;
  padding: 0.25rem 0.625rem;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 9999px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  margin-bottom: 1rem;
}

/* Pricing */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 1.5rem;
}

.pricing-card {
  border: 2px solid var(--color-border);
  border-radius: 0.75rem;
  padding: 1.5rem;
  text-align: center;
}

.pricing-card.featured {
  border-color: var(--color-primary);
  position: relative;
}

.pricing-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.price {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-text);
}

.price span {
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--color-text-light);
}

.pricing-card ul {
  list-style: none;
  padding: 0;
  margin: 1rem 0;
  text-align: left;
  font-size: 0.875rem;
}

.pricing-card ul li {
  padding: 0.25rem 0;
  padding-left: 1.25rem;
  position: relative;
  color: var(--color-text-light);
}

.pricing-card ul li::before {
  content: "\2713";
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: 700;
}

/* Waitlist */
.waitlist {
  text-align: center;
}

.waitlist h2 {
  font-size: 1.375rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.waitlist .lead {
  color: var(--color-text-light);
  margin-bottom: 1.5rem;
}

.waitlist-form {
  max-width: 420px;
  margin: 0 auto;
}

.waitlist-form .input-group {
  display: flex;
  gap: 0.5rem;
}

.waitlist-input {
  flex: 1;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  border: 2px solid var(--color-border);
  border-radius: 0.5rem;
  outline: none;
  transition: border-color 0.15s;
}

.waitlist-input:focus {
  border-color: var(--color-primary);
}

.waitlist-msg {
  margin-top: 0.75rem;
  font-size: 0.875rem;
  display: none;
}

.waitlist-msg.visible {
  display: block;
}

.waitlist-msg.success {
  color: var(--color-success);
}

.waitlist-msg.error {
  color: var(--color-error);
}

.privacy-note {
  margin-top: 0.75rem;
  font-size: 0.75rem;
  color: var(--color-text-light);
}

/* Footer */
.site-footer {
  padding: 2rem 0;
  border-top: 1px solid var(--color-border);
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-text-light);
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: var(--color-text-light);
  text-decoration: none;
}

.footer-links a:hover {
  color: var(--color-text);
  text-decoration: underline;
}

/* Legal pages */
.legal {
  padding: 2rem 0;
}

.legal h1 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.legal h2 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

.legal p {
  margin-bottom: 0.75rem;
  color: var(--color-text-light);
}

/* Responsive */
@media (max-width: 600px) {
  :root {
    --spacing: 1rem;
  }

  .hero h1 {
    font-size: 1.375rem;
  }

  .input-group {
    flex-direction: column;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .waitlist-form .input-group {
    flex-direction: column;
  }
}