/**
 * NEUROWELL - Layout Styles
 * Navbar, Footer, Main layout structure
 * Responsive layout patterns
 */

/* ===== HEADER / NAVBAR ===== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  padding: 0.75rem 0;
  transition: all var(--transition-slow);
}

.navbar.scrolled {
  background: rgba(15, 23, 42, 0.92);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.3);
}

.navbar-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  gap: 2rem;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
  flex-shrink: 0;
}

.navbar-brand img {
  height: 40px;
  width: auto;
}

.navbar-menu {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.navbar-menu a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-tertiary);
  transition: color var(--transition-slow);
  position: relative;
  padding-bottom: 4px;
}

.navbar-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary-gradient);
  border-radius: 2px;
  transition: width var(--transition-slow);
}

.navbar-menu a:hover {
  color: var(--text-primary);
}

.navbar-menu a:hover::after {
  width: 100%;
}

.navbar-menu a.active {
  color: var(--primary-light);
}

.navbar-menu a.active::after {
  width: 100%;
}

.navbar-actions {
  display: flex;
  gap: var(--spacing-md);
  align-items: center;
  flex-shrink: 0;
  white-space: nowrap;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  font-size: var(--text-xl);
}

/* ===== MAIN LAYOUT ===== */
main {
  min-height: calc(100vh - 80px - 300px);
}

.main-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-3xl) var(--spacing-lg);
}

.page-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
  animation: slideInDown 0.4s ease-out;
}

.page-header h1 {
  margin-bottom: var(--spacing-md);
}

.page-header p {
  font-size: var(--text-lg);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ===== FOOTER ===== */
footer {
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(10px);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--text-secondary);
  padding: var(--spacing-3xl) var(--spacing-lg);
  margin-top: var(--spacing-3xl);
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-section h4 {
  color: var(--text-primary);
  margin-bottom: var(--spacing-md);
}

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

.footer-section ul li {
  margin-bottom: var(--spacing-sm);
}

.footer-section a {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  transition: color var(--transition-base);
}

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

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: var(--spacing-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-lg);
}

.footer-social {
  display: flex;
  gap: var(--spacing-md);
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background-color: var(--bg-elevated);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.footer-social a:hover {
  background: var(--primary-gradient);
  transform: translateY(-2px);
}

.copyright {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
}

/* ===== SECTION LAYOUTS ===== */
.section {
  padding: var(--spacing-2xl) 0;
}

.section-alt {
  background-color: var(--bg-secondary);
}

.section-title {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-title h2 {
  margin-bottom: var(--spacing-md);
}

.section-title p {
  font-size: var(--text-lg);
  max-width: 500px;
  margin: 0 auto;
}

/* ===== CARD LAYOUT ===== */
.card {
  background: rgba(255, 255, 255, 0.04);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-xl);
  transition: all var(--transition-slow);
}

.card:hover {
  border-color: rgba(139, 92, 246, 0.2);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
  transform: translateY(-4px);
}

.card-header {
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.card-header h3 {
  font-weight: 700;
  letter-spacing: -0.01em;
}

.card-body {
  margin-bottom: var(--spacing-md);
}

.card-footer {
  padding-top: var(--spacing-md);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* ===== HERO SECTION ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -15%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.12) 0%, transparent 70%);
  border-radius: 50%;
  z-index: 0;
  animation: float 8s ease-in-out infinite;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -15%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(109, 40, 217, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  z-index: 0;
  animation: float 10s ease-in-out infinite reverse;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
}

.hero h1 {
  font-size: var(--text-4xl);
  margin-bottom: var(--spacing-lg);
  line-height: 1.15;
}

.hero p {
  font-size: var(--text-lg);
  margin-bottom: var(--spacing-2xl);
  color: var(--text-secondary);
}

.hero-cta {
  display: flex;
  gap: var(--spacing-lg);
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== BREADCRUMB ===== */
.breadcrumb {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  font-size: var(--text-sm);
}

.breadcrumb-item {
  color: var(--text-tertiary);
}

.breadcrumb-item.active {
  color: var(--text-primary);
}

.breadcrumb-separator {
  color: var(--text-tertiary);
}

/* ===== RESPONSIVE NAVBAR ===== */
@media (max-width: 768px) {
  .navbar-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background-color: var(--bg-secondary);
    padding: var(--spacing-lg);
    border-top: 1px solid var(--border-color);
  }

  .navbar-menu.active {
    display: flex;
  }

  .navbar-menu a {
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--border-color);
  }

  .nav-toggle {
    display: block;
  }

  .hero h1 {
    font-size: var(--text-2xl);
  }

  .hero p {
    font-size: var(--text-base);
  }

  .hero-cta {
    flex-direction: column;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .navbar-container {
    padding: 0 var(--spacing-md);
  }

  .main-content {
    padding: var(--spacing-xl) var(--spacing-md);
  }

  .page-header {
    margin-bottom: var(--spacing-2xl);
  }

  .footer-grid {
    grid-template-columns: 1fr;
  }
}