/* Base styles */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --primary: #1e40af;
  --primary-light: #3b82f6;
  --primary-dark: #1e3a8a;
  --secondary: #f8fafc;
  --text: #1e293b;
  --text-light: #64748b;
  --white: #ffffff;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --success: #16a34a;
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}

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

body {
  font-family: 'Inter', sans-serif;
  color: var(--text);
  background: linear-gradient(to bottom, #ebf4ff, #dbeafe);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* Navigation */
.nav {
  background-color: var(--primary);
  color: var(--white);
  box-shadow: var(--shadow);
}

.nav-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.75rem 0;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.25rem;
}

.nav-links {
  display: flex;
  gap: 1rem;
}

.nav-btn {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.5rem 0.75rem;
  border-radius: 0.375rem;
  background: none;
  border: none;
  color: var(--white);
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
}

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

/* Main content */
#app {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.page {
  display: none;
  padding: 2rem 0;
}

.page.active {
  display: block;
}

/* Home page */
.hero {
  text-align: center;
  margin-bottom: 3rem;
}

.hero h1 {
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-light);
}

.daily-message {
  background-color: var(--white);
  border-radius: 0.5rem;
  padding: 1.5rem;
  margin-bottom: 2.5rem;
  box-shadow: var(--shadow);
  border-left: 4px solid var(--primary-light);
}

.daily-message h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.daily-message p {
  font-size: 1.125rem;
  font-style: italic;
  color: var(--text);
}

.daily-message .send-btn {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-top: 1rem;
  margin-left: auto;
  background: none;
  border: none;
  color: var(--primary-light);
  cursor: pointer;
  font-weight: 500;
}

.daily-message .send-btn:hover {
  color: var(--primary);
}

.features {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-bottom: 3rem;
}

@media (min-width: 768px) {
  .features {
    grid-template-columns: 1fr 1fr;
  }
}

.feature-card {
  background-color: var(--white);
  border-radius: 0.5rem;
  padding: 1.5rem;
  box-shadow: var(--shadow);
  transition: box-shadow 0.3s ease;
}

.feature-card:hover {
  box-shadow: var(--shadow-lg);
}

.feature-card h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 0.75rem;
}

.feature-list {
  list-style: none;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}

.feature-item .check {
  color: var(--primary-light);
}

.cta {
  text-align: center;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: var(--primary-light);
  color: var(--white);
  font-weight: 700;
  padding: 0.75rem 2rem;
  border-radius: 9999px;
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: all 0.3s ease;
}

.cta-btn:hover {
  background-color: var(--primary);
  box-shadow: var(--shadow-lg);
}

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

/* Test page */
.test-container {
  max-width: 768px;
  margin: 0 auto;
  background-color: var(--white);
  border-radius: 0.5rem;
  padding: 2rem;
  box-shadow: var(--shadow-lg);
}

.test-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.test-header h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}

.question-counter {
  background-color: #dbeafe;
  color: var(--primary);
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
}

.progress-bar {
  width: 100%;
  height: 0.625rem;
  background-color: var(--gray-200);
  border-radius: 9999px;
  margin-bottom: 2rem;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background-color: var(--primary-light);
  border-radius: 9999px;
  transition: width 0.3s ease;
}

.question {
  margin-bottom: 2rem;
}

.question h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

.options {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.option {
  width: 100%;
  text-align: left;
  padding: 1rem;
  border-radius: 0.5rem;
  border: 1px solid var(--gray-300);
  background: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.option:hover {
  border-color: var(--primary-light);
  background-color: #dbeafe;
}

.option.selected {
  border-color: var(--primary-light);
  background-color: #dbeafe;
}

.option-content {
  display: flex;
  align-items: center;
}

.option-marker {
  width: 1.5rem;
  height: 1.5rem;
  border-radius: 50%;
  border: 1px solid var(--gray-400);
  margin-right: 0.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.option.selected .option-marker {
  background-color: var(--primary-light);
  border-color: var(--primary-light);
  color: var(--white);
}

.prev-btn {
  color: var(--primary-light);
  background: none;
  border: none;
  font-weight: 500;
  cursor: pointer;
}

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

.user-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text);
}

.form-input {
  width: 100%;
  padding: 0.5rem 1rem;
  border: 1px solid var(--gray-300);
  border-radius: 0.375rem;
  font-size: 1rem;
}

.form-input:focus {
  outline: none;
  border-color: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

.error-message {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  color: #ef4444;
  font-size: 0.875rem;
  margin-top: 0.5rem;
}

.submit-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  background-color: var(--primary-light);
  color: var(--white);
  font-weight: 700;
  padding: 0.75rem 1rem;
  border-radius: 0.375rem;
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: background-color 0.3s ease;
}

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

/* Certificate page */
.certificate-page-container {
  max-width: 1024px;
  margin: 0 auto;
}

.certificate-header {
  text-align: center;
  margin-bottom: 2rem;
}

.certificate-header h1 {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.certificate-header p {
  color: var(--text-light);
}

.certificate {
  background-color: var(--white);
  border: 8px double var(--primary);
  border-radius: 0.5rem;
  padding: 2rem;
  box-shadow: var(--shadow-lg);
  max-width: 640px;
  margin: 0 auto 2rem;
}

.certificate-content {
  text-align: center;
}

.certificate-icon {
  margin-bottom: 1rem;
  color: var(--primary);
}

.certificate-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 0.25rem;
}

.certificate-subtitle {
  font-size: 0.875rem;
  color: var(--text-light);
  margin-bottom: 1.5rem;
}

.certificate-text {
  font-size: 1.125rem;
  margin-bottom: 0.5rem;
}

.certificate-name {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 0.5rem;
  font-family: serif;
}

.certificate-level {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 0.25rem;
}

.certificate-score {
  font-size: 0.875rem;
  color: var(--text-light);
  margin-bottom: 0.5rem;
}

.certificate-description {
  font-size: 0.875rem;
  color: var(--text-light);
  margin-bottom: 1.5rem;
}

.certificate-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 2rem;
}

.certificate-footer-item {
  text-align: center;
}

.certificate-footer-label {
  font-size: 0.75rem;
  color: var(--text-light);
}

.certificate-footer-value {
  font-weight: 500;
}

.certificate-signature {
  font-family: serif;
  font-weight: 700;
  color: var(--primary);
}

.certificate-actions {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 3rem;
}

@media (min-width: 640px) {
  .certificate-actions {
    flex-direction: row;
    justify-content: center;
  }
}

.certificate-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: 0.375rem;
  border: none;
  font-weight: 500;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: background-color 0.3s ease;
}

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

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

.share-btn {
  background-color: var(--success);
  color: var(--white);
}

.share-btn:hover {
  background-color: #15803d;
}

.recommendations {
  background-color: var(--white);
  border-radius: 0.5rem;
  padding: 1.5rem;
  box-shadow: var(--shadow);
  margin-bottom: 2rem;
}

.recommendations h2 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 1rem;
}

.recommendations-list {
  list-style: none;
}

.recommendation-item {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  margin-bottom: 0.75rem;
}

.recommendation-item .check {
  color: var(--primary-light);
}

.home-link {
  text-align: center;
}

.home-link button {
  color: var(--primary-light);
  background: none;
  border: none;
  font-weight: 500;
  cursor: pointer;
}

.home-link button:hover {
  color: var(--primary);
}

/* Footer */
.footer {
  background-color: var(--primary);
  color: var(--white);
  padding: 1.5rem 0;
  margin-top: auto;
}

.footer-content {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
  .footer-content {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

.footer-info {
  margin-bottom: 1rem;
}

.footer-info p {
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

.footer-links {
  display: flex;
  gap: 1rem;
}

.footer-link {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  color: var(--white);
  text-decoration: none;
}

.footer-link:hover {
  color: #bfdbfe;
}

.footer-copyright {
  text-align: center;
  font-size: 0.875rem;
}