:root {
  --background: #ffffff;
  --foreground: #09090b;
  --card: #ffffff;
  --card-foreground: #09090b;
  --popover: #ffffff;
  --popover-foreground: #09090b;
  --primary: #18181b;
  --primary-foreground: #ffffff;
  --secondary: #f4f4f5;
  --secondary-foreground: #18181b;
  --muted: #f4f4f5;
  --muted-foreground: #71717a;
  --accent: #f4f4f5;
  --accent-foreground: #18181b;
  --destructive: #ef4444;
  --destructive-foreground: #ffffff;
  --border: #e4e4e7;
  --input: #e4e4e7;
  --ring: #18181b;
  --radius: 0.5rem;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
  background-color: var(--background);
  color: var(--foreground);
  line-height: 1.6;
}

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

header {
  background-color: var(--background);
  border-bottom: 1px solid var(--border);
  padding: 1rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--foreground);
  text-decoration: none;
}

nav ul {
  display: flex;
  list-style: none;
  gap: 1.5rem;
}

nav a {
  color: var(--foreground);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s ease;
}

nav a:hover {
  color: var(--primary);
}

nav a.active {
  color: var(--primary);
  font-weight: 700;
  position: relative;
}

nav a.active::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 100%;
  height: 2px;
  background-color: var(--primary);
}

.hero {
  padding: 4rem 0;
  background-color: var(--background);
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  max-width: 800px;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 800;
  line-height: 1.2;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s ease;
  cursor: pointer;
  padding: 0.75rem 1.5rem;
}

.button-primary {
  background-color: var(--primary);
  color: var(--primary-foreground);
}

.button-primary:hover {
  background-color: #000000;
}

.button-secondary {
  background-color: var(--secondary);
  color: var(--secondary-foreground);
}

.button-secondary:hover {
  background-color: #e4e4e7;
}

.card {
  background-color: var(--card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 1.5rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.card:hover {
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
  transform: translateY(-2px);
}

.features {
  padding: 4rem 0;
  background-color: var(--muted);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
}

.feature-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.feature-icon {
  width: 48px;
  height: 48px;
  background-color: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-foreground);
}

.testimonials {
  padding: 4rem 0;
}

.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
}

.testimonial-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.testimonial-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  overflow: hidden;
}

.testimonial-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.faq {
  padding: 4rem 0;
  background-color: var(--muted);
}

.faq-item {
  border-bottom: 1px solid var(--border);
  padding: 1.5rem 0;
}

.faq-question {
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
}

.faq-question::after {
  content: '+';
  font-size: 1.5rem;
  margin-left: 0.5rem;
}

.faq-question:hover {
  color: var(--primary);
}

.faq-answer {
  margin-top: 1rem;
  color: var(--muted-foreground);
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.faq-answer.active {
  max-height: 500px; /* Adjust as needed */
}

.error-message {
  color: var(--destructive);
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

.form-input.error,
.form-textarea.error {
  border-color: var(--destructive);
}

.testimonial-dots {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1rem;
}

.testimonial-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--muted);
  cursor: pointer;
  transition: background-color 0.2s ease;
}

.testimonial-dot.active {
  background-color: var(--primary);
}

.contact-form {
  display: grid;
  gap: 1.5rem;
  max-width: 600px;
  margin: 0 auto;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-label {
  font-weight: 500;
}

.form-input,
.form-textarea {
  padding: 0.75rem;
  border-radius: var(--radius);
  border: 1px solid var(--input);
  background-color: var(--background);
  color: var(--foreground);
  font-family: inherit;
  font-size: 1rem;
}

.form-input:focus,
.form-textarea:focus {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

footer {
  background-color: var(--primary);
  color: var(--primary-foreground);
  padding: 2rem 0;
  margin-top: 4rem;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 2rem;
}

.footer-section {
  flex: 1;
  min-width: 200px;
}

.footer-section h3 {
  margin-bottom: 1rem;
}

.footer-section ul {
  list-style: none;
}

.footer-section li {
  margin-bottom: 0.5rem;
}

.footer-section a {
  color: var(--primary-foreground);
  text-decoration: none;
  opacity: 0.8;
  transition: opacity 0.2s ease;
}

.footer-section a:hover {
  opacity: 1;
}

.copyright {
  margin-top: 2rem;
  text-align: center;
  opacity: 0.8;
  font-size: 0.875rem;
}

/* Calendar component styling */
.calendar {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 0.5rem;
  margin-top: 1rem;
}

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

.calendar-day {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius);
  font-size: 0.875rem;
  cursor: pointer;
}

.calendar-day:hover {
  background-color: var(--accent);
}

.calendar-day.active {
  background-color: var(--primary);
  color: var(--primary-foreground);
}

.calendar-day.muted {
  color: var(--muted-foreground);
}

/* Activity chart styling */
.activity-chart {
  display: flex;
  align-items: flex-end;
  gap: 0.25rem;
  height: 100px;
  margin-top: 1rem;
}

.activity-bar {
  flex: 1;
  background-color: var(--primary);
  border-radius: var(--radius);
  transition: height 0.2s ease;
}

/* Responsive styles */
@media (max-width: 768px) {
  .header-container {
    flex-direction: column;
    gap: 1rem;
  }
  
  nav ul {
    flex-direction: column;
    align-items: center;
    gap: 1rem;
  }
  
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .footer-content {
    flex-direction: column;
  }
}