/* ==========================================================================
   Workesi — Layout
   Container, header, footer, sections, grids
   ========================================================================== */

/* ---------- Container ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

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

/* ---------- Section ---------- */
.section {
  padding-block: var(--space-10);
}

.section--tight {
  padding-block: var(--space-8);
}

.section--soft {
  background: var(--bg-soft);
}

.section__header {
  max-width: 640px;
  margin-inline: auto;
  text-align: center;
  margin-bottom: var(--space-7);
}

.section__eyebrow {
  display: inline-block;
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--primary-600);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: var(--space-2);
}

.section__title {
  margin-bottom: var(--space-2);
}

.section__subtitle {
  color: var(--text-muted);
  font-size: var(--fs-md);
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-base) var(--ease-out),
    background var(--dur-base) var(--ease-out),
    box-shadow var(--dur-base) var(--ease-out);
}

.site-header.is-scrolled {
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-sm);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--space-4);
}

/* Logo */
.logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--fs-lg);
  font-weight: var(--fw-bold);
  letter-spacing: -0.02em;
  color: var(--neutral-900);
  flex-shrink: 0;
}

.logo__mark {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-md);
  background: var(--gradient-primary);
  color: white;
  box-shadow: var(--shadow-primary);
}

.logo__mark svg {
  width: 20px;
  height: 20px;
}

/* Nav */
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav__link {
  position: relative;
  padding: var(--space-1) var(--space-2);
  font-size: var(--fs-sm);
  font-weight: var(--fw-medium);
  color: var(--neutral-600);
  border-radius: var(--radius-md);
  transition: color var(--dur-fast) var(--ease-out),
    background var(--dur-fast) var(--ease-out);
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 4px;
  width: 0;
  height: 2px;
  background: var(--primary-500);
  border-radius: 1px;
  transform: translateX(-50%);
  transition: width var(--dur-base) var(--ease-out);
}

.nav__link:hover {
  color: var(--neutral-900);
}

.nav__link:hover::after {
  width: 24px;
}

/* Header actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-shrink: 0;
}

/* Mobile menu toggle */
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border);
  background: var(--bg);
  border-radius: var(--radius-md);
  cursor: pointer;
  position: relative;
}

.nav-toggle__line {
  position: absolute;
  left: 50%;
  width: 18px;
  height: 2px;
  background: var(--neutral-700);
  border-radius: 1px;
  transform: translateX(-50%);
  transition: transform var(--dur-base) var(--ease-out),
    opacity var(--dur-fast) var(--ease-out);
}

.nav-toggle__line:nth-child(1) {
  top: 14px;
}
.nav-toggle__line:nth-child(2) {
  top: 19px;
}
.nav-toggle__line:nth-child(3) {
  top: 24px;
}

.nav-toggle.is-open .nav-toggle__line:nth-child(1) {
  top: 19px;
  transform: translateX(-50%) rotate(45deg);
}
.nav-toggle.is-open .nav-toggle__line:nth-child(2) {
  opacity: 0;
}
.nav-toggle.is-open .nav-toggle__line:nth-child(3) {
  top: 19px;
  transform: translateX(-50%) rotate(-45deg);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--neutral-900);
  color: var(--neutral-300);
  padding-block: var(--space-8) var(--space-5);
}

.site-footer__top {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, 1fr);
  gap: var(--space-6);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.site-footer__brand {
  max-width: 320px;
}

.site-footer .logo {
  color: white;
  margin-bottom: var(--space-2);
}

.site-footer__tagline {
  color: var(--neutral-400);
  font-size: var(--fs-sm);
  line-height: var(--lh-relaxed);
}

.footer-col__title {
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: white;
  margin-bottom: var(--space-2);
  letter-spacing: 0.02em;
}

.footer-col__link {
  display: inline-block;
  padding: 4px 0;
  font-size: var(--fs-sm);
  color: var(--neutral-400);
  transition: color var(--dur-fast) var(--ease-out);
}

.footer-col__link:hover {
  color: white;
}

.site-footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-4);
  font-size: var(--fs-sm);
  color: var(--neutral-500);
}

.site-footer__legal {
  display: flex;
  gap: var(--space-3);
}

.site-footer__legal a:hover {
  color: white;
}

/* ---------- Grids ---------- */
.grid {
  display: grid;
  gap: var(--space-4);
}

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

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

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .site-footer__top {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-5);
  }
  .site-footer__brand {
    grid-column: 1 / -1;
    max-width: none;
  }
}

@media (max-width: 768px) {
  .section {
    padding-block: var(--space-8);
  }

  .nav,
  .header-actions .btn--ghost {
    display: none;
  }

  .nav-toggle {
    display: block;
  }

  .header-actions {
    gap: var(--space-1);
  }

  /* Mobile nav drawer */
  .nav-mobile {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg);
    border-top: 1px solid var(--border);
    padding: var(--space-3);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--dur-slow) var(--ease-out),
      opacity var(--dur-base) var(--ease-out),
      visibility 0s linear var(--dur-slow);
    z-index: var(--z-sticky);
    overflow-y: auto;
  }

  .nav-mobile.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    transition: transform var(--dur-slow) var(--ease-out),
      opacity var(--dur-base) var(--ease-out), visibility 0s;
  }

  .nav-mobile__link {
    display: block;
    padding: var(--space-2) var(--space-1);
    font-size: var(--fs-md);
    font-weight: var(--fw-medium);
    color: var(--neutral-700);
    border-bottom: 1px solid var(--border);
  }

  .nav-mobile__actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    margin-top: var(--space-3);
  }
}

@media (min-width: 769px) {
  .nav-mobile {
    display: none;
  }
}

@media (max-width: 640px) {
  .site-footer__top {
    grid-template-columns: 1fr;
  }
  .site-footer__bottom {
    flex-direction: column;
    gap: var(--space-2);
    text-align: center;
  }
}