/* css/layout.css */
/* Main Container */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  display: flex;
  align-items: center;
  z-index: 1000;
  transition: var(--transition-normal);
  background: transparent;
}

.header.scrolled {
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
}

.header__inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
}

.header__logo {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.header__logo span {
  color: var(--accent-color);
}

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

.header__nav-links {
  display: flex;
  gap: var(--spacing-lg);
}

.header__nav-link {
  font-weight: 500;
  font-size: 0.95rem;
  position: relative;
  transition: var(--transition-fast);
}

.header__nav-link:hover {
  color: var(--accent-color);
}

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

/* Sections */
section {
  padding: var(--spacing-xxl) 0;
  position: relative;
}

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

.section-title {
  font-size: 3rem;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  letter-spacing: -1px;
}

.section-subtitle {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* Footer */
.footer {
  background-color: var(--bg-secondary);
  padding: var(--spacing-xl) 0 var(--spacing-md);
  border-top: 1px solid var(--border-color);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr repeat(4, 1fr);
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer__col-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--spacing-lg);
  color: var(--text-primary);
}

.footer__link {
  display: block;
  color: var(--text-secondary);
  margin-bottom: var(--spacing-sm);
  font-size: 0.9rem;
  transition: var(--transition-fast);
}

.footer__link:hover {
  color: var(--accent-color);
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--border-color);
  color: var(--text-secondary);
  font-size: 0.85rem;
}

/* Responsive Grid */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

/* Responsive Adjustments */
@media (max-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .header__nav-links { display: none; }
  .grid--3, .grid--2 { grid-template-columns: 1fr; }
  .section-title { font-size: 2.2rem; }
  .footer__grid { grid-template-columns: 1fr; }
  .footer__bottom { flex-direction: column; gap: var(--spacing-md); text-align: center; }
}