/* NumPlate – Styles */

:root {
  --color-primary: #0066ff;
  --color-primary-light: #00c6ff;
  --color-warning: #ff4d4f;
  --color-highlight: #ffd166;
  --color-bg: #f5f7fa;
  --color-text: #2f343f;
  --radius: 10px;
  --shadow: 0 4px 12px rgba(0, 0, 0, 0.06);
  --transition: 0.25s ease-in-out;
}

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

body {
  font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

header.hero {
  text-align: center;
  padding: 3rem 1rem 2rem;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #fff;
  box-shadow: var(--shadow);
}

.app-name {
  font-family: "Poppins", sans-serif;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

header.hero h1 {
  font-size: 1.75rem;
  margin-bottom: 0.5rem;
}

header.hero p {
  font-size: 1rem;
  opacity: 0.9;
}

.container {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1rem;
}

.input-card {
  display: flex;
  gap: 0.5rem;
  background: #fff;
  padding: 1.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.input-card input {
  flex: 1;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  border: 1px solid #d0d7de;
  border-radius: var(--radius);
  transition: var(--transition);
}

.input-card input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.15);
}

.input-card button {
  background: var(--color-primary);
  border: none;
  color: #fff;
  padding: 0 1.25rem;
  font-size: 1rem;
  border-radius: var(--radius);
  cursor: pointer;
  transition: var(--transition);
}

.input-card button:hover {
  background: var(--color-primary-light);
}

/* Feedback section */
#feedback {
  margin-top: 2rem;
}

.card {
  background: #fff;
  padding: 1.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  position: relative;
}

.card.valid {
  border-left: 6px solid var(--color-primary);
}

.card.invalid {
  border-left: 6px solid var(--color-warning);
}

.card h2 {
  margin-bottom: 0.5rem;
  font-size: 1.25rem;
}

.card p {
  margin-bottom: 0.25rem;
}

.copy-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--color-highlight);
  border: none;
  color: #000;
  padding: 0.25rem 0.5rem;
  font-size: 0.8rem;
  border-radius: var(--radius);
  cursor: pointer;
  opacity: 0.85;
  transition: var(--transition);
}

.copy-btn:hover {
  opacity: 1;
}

footer {
  text-align: center;
  padding: 2rem 1rem;
  font-size: 0.85rem;
  color: #6b7280;
}

.branding {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 0.25rem;
  margin-bottom: 0.75rem;
}

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

.branding a:hover {
  text-decoration: underline;
}

.divider {
  opacity: 0.6;
}

.hidden {
  display: none !important;
}

/* Modal */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}
.modal-content {
  background: #fff;
  max-width: 700px;
  width: 90%;
  padding: 2rem 1.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  position: relative;
}
.close {
  position: absolute;
  top: 0.5rem;
  right: 0.75rem;
  font-size: 1.5rem;
  cursor: pointer;
}

/* Facts Section */
.facts {
  margin-top: 3rem;
  background: #fff;
  padding: 1.5rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.facts h2 {
  margin-bottom: 0.75rem;
}
.facts ul {
  list-style: disc;
  padding-left: 1.25rem;
}
.facts li {
  margin-bottom: 0.5rem;
}

/* Shake animation for invalid card */
@keyframes shake {
  0% {
    transform: translateX(0);
  }
  20% {
    transform: translateX(-4px);
  }
  40% {
    transform: translateX(4px);
  }
  60% {
    transform: translateX(-4px);
  }
  80% {
    transform: translateX(4px);
  }
  100% {
    transform: translateX(0);
  }
}

.card.shake {
  animation: shake 0.4s ease-in-out both;
}

/* FAQ Section */
.faq {
  margin-top: 3rem;
}
.faq details {
  background: #fff;
  margin-bottom: 1rem;
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.faq summary {
  cursor: pointer;
  font-weight: 600;
  outline: none;
}

/* Legal Docs */
.legal-docs {
  max-width: 720px;
  margin: 0 auto 4rem;
  padding: 0 1rem;
}
.legal-docs article {
  background: #fff;
  padding: 1.5rem;
  margin-bottom: 2rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.legal-links a {
  color: var(--color-primary);
  text-decoration: none;
}

.legal-links a:hover {
  text-decoration: underline;
}