/**
 * Athyr Layout
 * Navigation, footer, containers, and structural elements
 */

/* ========================================
   Container
   ======================================== */
.container {
  width: 100%;
  max-width: var(--container-lg);
  margin: 0 auto;
  padding: 0 var(--space-lg);
}

.container--narrow {
  max-width: var(--container-md);
}

.container--wide {
  max-width: var(--container-xl);
}

/* ========================================
   Navigation
   ======================================== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  padding: var(--space-md) var(--space-xl);
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: var(--z-nav);
  background: rgba(13, 13, 13, 0.8);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.nav-logo svg {
  width: 32px;
  height: 28px;
}

.nav-logo span {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-white);
  letter-spacing: var(--letter-spacing-tight);
}

.nav-links {
  display: flex;
  gap: 2.5rem;
}

.nav-links a {
  color: var(--color-gray-300);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color var(--transition-fast);
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-white);
}

.nav-cta {
  background: var(--color-white);
  color: var(--color-black);
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: var(--font-weight-medium);
  transition: all var(--transition-fast);
}

.nav-cta:hover {
  background: var(--color-gray-100);
}

/* Hamburger Menu Button */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 10000;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-white);
  transition: all var(--transition-fast);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* Mobile Navigation */
@media (max-width: 768px) {
  .nav {
    padding: var(--space-sm) var(--space-md);
  }

  .nav-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: #1e1e1e;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--space-lg);
    z-index: 9999;
  }

  .nav-links.is-open {
    display: flex;
  }

  .nav-links a {
    font-size: 1.5rem;
    padding: var(--space-sm) var(--space-lg);
    border-radius: var(--radius-md);
    transition: background var(--transition-fast);
  }

  .nav-links a:hover {
    background: rgba(255, 255, 255, 0.1);
  }

  .nav-cta {
    display: none;
  }

  .nav-cta--mobile {
    display: inline-block;
    background: var(--color-white);
    color: var(--color-black);
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    text-decoration: none;
    font-size: 1rem;
    font-weight: var(--font-weight-medium);
  }
}

/* ========================================
   Footer
   ======================================== */
.footer {
  padding: var(--space-xl) var(--space-xl);
  border-top: 1px solid var(--color-gray-600);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer p {
  color: var(--color-gray-500);
  font-size: 0.875rem;
  margin: 0;
}

.footer-links {
  display: flex;
  gap: var(--space-lg);
}

.footer-links a {
  color: var(--color-gray-400);
  text-decoration: none;
  font-size: 0.875rem;
  transition: color var(--transition-fast);
}

.footer-links a:hover {
  color: var(--color-white);
}

@media (max-width: 768px) {
  .footer {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
    padding: var(--space-lg) var(--space-md);
  }
}

/* ========================================
   Sections
   ======================================== */
.section {
  padding: var(--space-3xl) var(--space-xl);
}

.section--dark {
  background: var(--color-black);
}

.section--darker {
  background: var(--color-dark);
}

/* ========================================
   Hero
   ======================================== */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: var(--space-3xl) var(--space-lg) var(--space-xl);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(74, 158, 255, 0.08) 0%, transparent 70%);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
}

.hero-logo {
  width: 180px;
  height: 160px;
  margin-bottom: var(--space-lg);
  animation: float 6s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

.hero h1 {
  margin-bottom: var(--space-md);
}

.hero p {
  font-size: 1.25rem;
  color: var(--color-gray-300);
  max-width: 600px;
  margin-bottom: var(--space-xl);
  font-weight: var(--font-weight-light);
}

.hero-buttons {
  display: flex;
  gap: var(--space-sm);
}

@media (max-width: 768px) {
  .hero {
    padding: var(--space-2xl) var(--space-md) var(--space-lg);
  }

  .hero h1 {
    font-size: 2.5rem;
  }

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

/* ========================================
   CTA Section
   ======================================== */
.cta {
  padding: var(--space-3xl) var(--space-xl);
  text-align: center;
}

.cta h2 {
  margin-bottom: var(--space-sm);
}

.cta p {
  color: var(--color-gray-300);
  margin-bottom: var(--space-lg);
  font-size: 1.125rem;
}