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

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

/* Section spacing */
.section {
  padding: var(--space-3xl) 0;
}

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

/* ==================== HEADER ==================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  background-color: var(--color-charcoal);
  transition: all var(--duration-normal) var(--ease-out);
  display: flex;
  align-items: center;
}

.header.is-compact {
  height: 56px;
  box-shadow: 0 1px 0 rgba(0,0,0,0.1);
}

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

/* Wordmark */
.wordmark {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: clamp(0.65rem, 0.55rem + 0.5vw, 0.85rem);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-offwhite);
  white-space: nowrap;
}

/* Navigation */
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
}

.nav__link {
  font-family: var(--font-body);
  font-weight: 400;
  font-size: var(--text-sm);
  letter-spacing: 0.05em;
  color: rgba(245, 243, 240, 0.6);
  transition: color var(--duration-fast) var(--ease-out);
  position: relative;
}

.nav__link:hover,
.nav__link.is-active {
  color: var(--color-offwhite);
}

.nav__link.is-active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 1px;
  background: var(--color-taupe);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 28px;
  height: 28px;
  padding: 0;
}

.hamburger__line {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--color-offwhite);
  transition: all var(--duration-normal) var(--ease-out);
  transform-origin: center;
}

.hamburger.is-active .hamburger__line:nth-child(1) {
  transform: rotate(45deg) translate(4.5px, 4.5px);
}

.hamburger.is-active .hamburger__line:nth-child(2) {
  opacity: 0;
}

.hamburger.is-active .hamburger__line:nth-child(3) {
  transform: rotate(-45deg) translate(4.5px, -4.5px);
}

/* Mobile nav */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    justify-content: flex-start;
    padding-top: var(--space-xl);
    gap: var(--space-lg);
    background: var(--color-charcoal);
    transform: translateX(100%);
    transition: transform var(--duration-normal) var(--ease-out);
  }

  .nav.is-open {
    transform: translateX(0);
  }

  .nav__link {
    font-size: var(--text-lg);
  }
}

/* ==================== FOOTER ==================== */
.footer {
  background-color: var(--color-charcoal);
  color: var(--color-offwhite);
  padding: var(--space-2xl) 0 var(--space-lg);
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-lg);
}

.footer__wordmark {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: var(--text-xs);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-offwhite);
  margin-bottom: var(--space-sm);
}

.footer__text {
  font-size: var(--text-sm);
  color: rgba(245, 243, 240, 0.5);
  line-height: 1.8;
}

.footer__text a {
  color: rgba(245, 243, 240, 0.7);
  transition: color var(--duration-fast) var(--ease-out);
}

.footer__text a:hover {
  color: var(--color-offwhite);
}

.footer__bottom {
  margin-top: var(--space-xl);
  padding-top: var(--space-md);
  border-top: 1px solid rgba(245, 243, 240, 0.1);
  font-size: var(--text-xs);
  color: rgba(245, 243, 240, 0.35);
}

@media (max-width: 768px) {
  .footer__inner {
    flex-direction: column;
  }
}

/* ==================== GRIDS ==================== */

/* 2-column asymmetric (40/60) */
.grid-asymmetric {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: var(--space-xl);
  align-items: start;
}

/* 4-column grid */
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

/* 2-column even grid */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-lg);
}

/* 3-column grid */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

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

  .grid-asymmetric {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
}

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

/* Page offset for fixed header */
main {
  padding-top: var(--header-height);
}