/* landing.css */
:root {
  --primary-color: #2563eb;
  --primary-color-dark: #1d4ed8;
  --text-color: #333333;
  --background-color: #ffffff;
  --light-gray: #f3f4f6;
  --white: #ffffff;
  --border-color: #e5e7eb;
  --soft-gray: #888888;
}

body {
  margin: 0;
  font-family: 'Segoe UI', 'Inter', sans-serif;
  color: var(--text-color);
  background-color: var(--background-color);
}

/* Sticky Navigation */
.landing-nav {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: var(--background-color);
  z-index: 1000;
  transition: all 0.3s ease;
}

.landing-nav.scrolled {
  background-color: var(--white);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 5%;
  height: 70px;
  max-width: 1200px;
  margin: 0 auto;
}

.nav-logo {
  display: flex;
  align-items: center;
}

.nav-logo img {
  height: 40px;
  margin-right: 10px;
}

.brand-text {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--primary-color);
}

.nav-links {
  display: flex;
  align-items: center;
}

.nav-link {
  margin: 0 15px;
  color: #555;
  text-decoration: none;
  font-size: 1rem;
  font-weight: 500;
  transition: color 0.2s ease;
  position: relative;
}

.nav-link:hover, .nav-link.active {
  color: var(--primary-color);
}

.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -5px;
  left: 0;
  background-color: var(--primary-color);
  transition: width 0.3s ease;
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

.login-link {
  margin-right: 5px;
}

.nav-button {
  background-color: var(--primary-color);
  color: var(--white);
  border: none;
  border-radius: 5px;
  padding: 10px 20px;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: background-color 0.2s ease;
  margin-left: 15px;
  text-decoration: none;
}

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

.mobile-menu-button {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  width: 44px;
  height: 44px;
  border-radius: 8px;
}

.mobile-menu-button:hover {
  background-color: rgba(0, 0, 0, 0.05);
}

.mobile-menu-button span {
  width: 25px;
  height: 2px;
  background-color: var(--soft-gray);
  margin: 3px 0;
  transition: all 0.3s ease;
}

.nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.5);
  display: none;
  z-index: 999;
}

.nav-overlay.active {
  display: block;
}

/* About Page Content */
.about-container {
  max-width: 800px;
  margin: 5rem auto 3rem;
  padding: 0 1.5rem;
}

.about-content h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: var(--primary-color);
}

.intro-text {
  font-size: 1.25rem;
  line-height: 1.6;
  margin-bottom: 2rem;
}

.about-section {
  margin-bottom: 2.5rem;
}

.about-section h2 {
  font-size: 1.75rem;
  margin-bottom: 0.75rem;
  color: var(--primary-color);
}

.about-section p {
  line-height: 1.6;
}

/* Mobile responsive */
@media (max-width: 768px) {
  .mobile-menu-button {
    display: flex;
    z-index: 1001;
  }
  
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 70%;
    height: 100vh;
    background-color: white;
    flex-direction: column;
    justify-content: flex-start;
    padding-top: 80px;
    transition: right 0.3s ease;
    box-shadow: -5px 0 15px rgba(0, 0, 0, 0.1);
  }
  
  .nav-links.active {
    right: 0;
  }
  
  .nav-link {
    margin: 10px 0;
    font-size: 1.2rem;
    width: 100%;
    text-align: center;
    padding: 10px 0;
  }
  
  .nav-button {
    margin: 15px 0 0 0;
    width: 80%;
  }
  
  /* Toggle animation */
  .mobile-menu-button.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  
  .mobile-menu-button.active span:nth-child(2) {
    opacity: 0;
  }
  
  .mobile-menu-button.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
}