.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

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

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

.section {
  padding: var(--space-2xl) 0;
}

.section--lg {
  padding: var(--space-3xl) 0;
}

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

/* Grid */
.grid {
  display: grid;
  gap: var(--space-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);
}

@media (max-width: 768px) {
  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .grid--3,
  .grid--4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* Flex utilities */
.flex {
  display: flex;
}

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

.flex--between {
  align-items: center;
  justify-content: space-between;
}

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

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

.flex--gap-md {
  gap: var(--space-md);
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: background-color var(--transition-base), box-shadow var(--transition-base);
}

.nav--scrolled {
  background-color: var(--color-bg-primary);
  box-shadow: var(--shadow-sm);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.nav__brand {
  display: flex;
  align-items: center;
  white-space: nowrap;
}

.nav__brand img {
  width: 140px;
  height: auto;
}

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

.nav__link {
  font-size: var(--fs-small);
  font-weight: var(--fw-regular);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  position: relative;
  transition: color var(--transition-fast);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-accent);
  transition: width var(--transition-base);
}

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

.nav__lang {
  font-size: var(--fs-small);
  letter-spacing: var(--ls-wide);
  display: flex;
  gap: var(--space-xs);
}

.nav__lang a {
  opacity: 0.5;
  transition: opacity var(--transition-fast);
}

.nav__lang a:hover,
.nav__lang a.active {
  opacity: 1;
}

.nav__lang span {
  opacity: 0.3;
}

/* Mobile nav toggle */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 24px;
  padding: 4px 0;
}

.nav__toggle span {
  display: block;
  height: 1.5px;
  background-color: var(--color-text-primary);
  transition: transform var(--transition-base), opacity var(--transition-fast);
}

.nav__toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav__toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav__toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

@media (max-width: 768px) {
  .nav__toggle {
    display: flex;
  }

  .nav__menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background-color: var(--color-bg-primary);
    padding: calc(var(--nav-height) + var(--space-lg)) var(--space-lg) var(--space-lg);
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
    transition: right var(--transition-base);
    box-shadow: var(--shadow-lg);
  }

  .nav__menu.active {
    right: 0;
  }

  .nav__links {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-md);
  }

  .nav__link {
    font-size: var(--fs-body);
  }
}

/* Footer */
.footer {
  padding: var(--space-2xl) 0 var(--space-lg);
  border-top: 1px solid var(--color-border);
}

.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-xl);
}

.footer__brand {
  font-family: var(--font-heading);
  font-size: var(--fs-h3);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.footer__tagline {
  color: var(--color-text-secondary);
  font-size: var(--fs-small);
  max-width: 300px;
}

.footer__heading {
  font-family: var(--font-body);
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.footer__links a {
  font-size: var(--fs-small);
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

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

.footer__bottom {
  margin-top: var(--space-xl);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--fs-xs);
  color: var(--color-text-secondary);
}

@media (max-width: 768px) {
  .footer__inner {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .footer__bottom {
    flex-direction: column;
    gap: var(--space-sm);
    text-align: center;
  }
}

/* Page header */
.page-header {
  padding: calc(var(--nav-height) + var(--space-2xl)) 0 var(--space-xl);
  text-align: center;
}

.page-header h1 {
  margin-bottom: var(--space-sm);
}

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