/* ===== HEADER & NAVIGATION ===== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background-color: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  z-index: 1000;
  transition: all var(--transition-base);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) var(--container-padding);
  max-width: var(--container-max);
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.logo img {
  height: 50px;
  width: auto;
}

.nav {
  display: flex;
  gap: var(--spacing-lg);
  align-items: center;
}

.nav a {
  color: var(--color-text);
  font-weight: 500;
  font-size: 0.95rem;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.nav a:hover {
  background-color: var(--color-bg-alt);
  color: var(--color-primary);
  text-decoration: none;
}

/* Menu Mobile */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-xs);
}

.menu-toggle span {
  width: 25px;
  height: 3px;
  background-color: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

/* ===== HERO SECTION ===== */

.hero {
  margin-top: 70px;
  padding: var(--spacing-3xl) 0;
  background: linear-gradient(135deg, #f0f9ff 0%, #e0e7ff 100%);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background-image: url('../img/pattern.svg');
  background-repeat: repeat;
  opacity: 0.5;
  pointer-events: none;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-2xl);
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-text h1 {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

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

.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-image img {
  width: 100%;
  max-width: 500px;
  height: auto;
  filter: drop-shadow(0 20px 30px rgba(0, 0, 0, 0.1));
}

/* ===== CONTENT SECTIONS ===== */

.content-section {
  margin-bottom: var(--spacing-3xl);
}

.content-section h2 {
  color: var(--color-text);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-sm);
  border-bottom: 3px solid var(--color-primary);
  display: inline-block;
}

.content-section h3 {
  color: var(--color-primary);
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-md);
}

.content-section p {
  font-size: 1.05rem;
  line-height: 1.8;
}

/* ===== CARD GRID ===== */

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.card {
  background-color: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  border: 1px solid var(--color-border);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.card-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
}

.card h3 {
  font-size: 1.25rem;
  margin-top: 0;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

.card p {
  margin-bottom: 0;
  font-size: 0.95rem;
}

/* ===== INFO BOX ===== */

.info-box {
  background-color: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-lg);
  margin: var(--spacing-2xl) 0;
}

.info-box h3 {
  margin-top: 0;
  color: var(--color-text);
}

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

.info-box li {
  padding-left: var(--spacing-lg);
  position: relative;
  margin-bottom: var(--spacing-sm);
}

.info-box li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: bold;
  font-size: 1.2rem;
}

/* ===== ALERT BOX ===== */

.alert-box {
  background-color: #fffbeb;
  border-left: 5px solid var(--color-warning);
  border-radius: var(--radius-md);
  padding: var(--spacing-lg);
  margin: var(--spacing-2xl) 0;
  box-shadow: var(--shadow-md);
}

.alert-box h3 {
  color: #92400e;
  margin-top: 0;
  font-size: 1.15rem;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.alert-box h3::before {
  content: '⚠️';
  font-size: 1.5rem;
}

.alert-box p {
  color: #78350f;
  margin-bottom: 0;
  font-size: 0.95rem;
  line-height: 1.7;
}

/* ===== FEATURE LIST ===== */

.feature-list {
  display: grid;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-xl);
}

.feature-item {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
}

.feature-icon {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  flex-shrink: 0;
}

.feature-content h4 {
  margin-top: 0;
  margin-bottom: var(--spacing-xs);
  color: var(--color-text);
}

.feature-content p {
  margin-bottom: 0;
}

/* ===== TIMELINE ===== */

.timeline {
  position: relative;
  padding-left: var(--spacing-xl);
  margin-top: var(--spacing-xl);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--color-primary) 0%, var(--color-secondary) 100%);
}

.timeline-item {
  position: relative;
  padding-bottom: var(--spacing-xl);
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -31px;
  top: 5px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background-color: var(--color-primary);
  border: 3px solid var(--color-bg);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

.timeline-item h4 {
  margin-bottom: var(--spacing-xs);
  color: var(--color-primary);
}

.timeline-item p {
  margin-bottom: 0;
}

/* ===== FOOTER ===== */

.footer {
  background-color: var(--color-text);
  color: var(--color-bg-alt);
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
  margin-top: var(--spacing-3xl);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-xl);
}

.footer-section h3 {
  color: var(--color-bg);
  margin-bottom: var(--spacing-md);
  font-size: 1.1rem;
}

.footer-section p,
.footer-section a {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  line-height: 1.8;
}

.footer-section a:hover {
  color: var(--color-bg);
}

.footer-info {
  font-size: 0.75rem;
  line-height: 1.4;
  color: rgba(255, 255, 255, 0.5);
  margin-top: var(--spacing-sm);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-md);
  text-align: center;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

/* ===== RESPONSIVE ===== */

@media (max-width: 992px) {
  .hero-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-text h1 {
    font-size: 2.5rem;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background-color: var(--color-bg);
    flex-direction: column;
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-xl);
    transition: left var(--transition-base);
    gap: var(--spacing-md);
  }
  
  .nav.active {
    left: 0;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .hero {
    margin-top: 60px;
    padding: var(--spacing-xl) 0;
  }
  
  .hero-text h1 {
    font-size: 2rem;
  }
  
  .hero-text p {
    font-size: 1.05rem;
  }
  
  .card-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .hero-text h1 {
    font-size: 1.75rem;
  }
  
  .timeline {
    padding-left: var(--spacing-lg);
  }
}

/* ===== ANIMATIONS ===== */

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in {
  animation: fadeIn 0.6s ease-out;
}

/* ===== PRINT STYLES ===== */

@media print {
  .header,
  .menu-toggle,
  .alert-box {
    display: none;
  }
  
  .hero {
    margin-top: 0;
  }
}