/* =========================================
   SHAILY RAJWANSHI — Layout (Nav, Grid, Footer)
   ========================================= */

/* --- Navigation --- */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  padding: var(--space-4) 0;
  transition: all var(--duration-normal) var(--ease-out);
}

.nav--scrolled {
  background-color: rgba(250, 247, 242, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--shadow-sm);
  padding: var(--space-3) 0;
}

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

.nav__logo {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: var(--fw-bold);
  color: var(--color-text-primary);
  text-decoration: none;
  letter-spacing: var(--ls-tight);
  transition: color var(--duration-fast) var(--ease-out);
}

.nav__logo:hover {
  color: var(--color-terracotta);
}

.nav__logo span {
  color: var(--color-terracotta);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.nav__link {
  font-size: var(--fs-nav);
  font-weight: var(--fw-medium);
  color: var(--color-text-primary);
  text-decoration: none;
  position: relative;
  padding: var(--space-1) 0;
  transition: color var(--duration-fast) var(--ease-out);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-terracotta);
  border-radius: 1px;
  transition: width var(--duration-normal) var(--ease-out);
}

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

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

.nav__social {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin-left: var(--space-5);
  padding-left: var(--space-5);
  border-left: 1px solid var(--color-sand-dark);
}

.nav__social a {
  color: var(--color-text-secondary);
  transition: color var(--duration-fast) var(--ease-out);
  display: flex;
  align-items: center;
}

.nav__social a:hover {
  color: var(--color-terracotta);
}

.nav__social svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* --- Mobile Nav Toggle --- */

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
  cursor: pointer;
  background: none;
  border: none;
  z-index: calc(var(--z-overlay) + 10);
  position: relative;
}

.nav__toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text-primary);
  border-radius: 1px;
  transition: all var(--duration-normal) var(--ease-out);
}

.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);
}

/* --- Mobile Menu Overlay --- */

.nav__mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(250, 247, 242, 0.80);
  backdrop-filter: blur(24px) saturate(1.2);
  -webkit-backdrop-filter: blur(24px) saturate(1.2);
  z-index: var(--z-overlay);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-6);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity var(--duration-normal) var(--ease-out),
              visibility var(--duration-normal);
}

.nav__mobile-menu.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.nav__mobile-menu a {
  font-family: var(--font-serif);
  font-size: var(--fs-h3);
  color: var(--color-text-primary);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}

.nav__mobile-menu a:hover {
  color: var(--color-terracotta);
}

.nav__mobile-menu .mobile-social {
  display: flex;
  gap: var(--space-5);
  margin-top: var(--space-4);
}

.nav__mobile-menu .mobile-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  padding: var(--space-2);
  border-radius: var(--radius-full);
  background-color: rgba(196, 112, 75, 0.08);
  transition: background-color var(--duration-fast) var(--ease-out);
}

.nav__mobile-menu .mobile-social a:hover {
  background-color: rgba(196, 112, 75, 0.15);
}

.nav__mobile-menu .mobile-social svg {
  width: 24px;
  height: 24px;
}

/* --- Grid Utilities --- */

.grid {
  display: grid;
  gap: var(--space-6);
}

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

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

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

.grid--2-1 {
  grid-template-columns: 2fr 1fr;
}

.grid--1-2 {
  grid-template-columns: 1fr 2fr;
}

/* --- Footer --- */

.footer {
  background-color: var(--color-charcoal);
  color: rgba(255, 255, 255, 0.7);
  padding: var(--space-9) 0 var(--space-7);
}

.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-8);
}

.footer__brand {
  max-width: 360px;
}

.footer__logo {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: var(--fw-bold);
  color: var(--color-white);
  margin-bottom: var(--space-4);
}

.footer__logo span {
  color: var(--color-terracotta-light);
}

.footer__bio {
  font-size: var(--fs-caption);
  line-height: var(--lh-body);
  color: rgba(255, 255, 255, 0.6);
}

.footer__heading {
  font-family: var(--font-sans);
  font-size: var(--fs-caption);
  font-weight: var(--fw-semibold);
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: var(--color-white);
  margin-bottom: var(--space-5);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer__links a {
  font-size: var(--fs-caption);
  color: rgba(255, 255, 255, 0.6);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}

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

.footer__bottom {
  margin-top: var(--space-8);
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: var(--fs-small);
  color: rgba(255, 255, 255, 0.4);
}

.footer__social {
  display: flex;
  gap: var(--space-4);
}

.footer__social a {
  color: rgba(255, 255, 255, 0.5);
  transition: color var(--duration-fast) var(--ease-out);
  display: flex;
}

.footer__social a:hover {
  color: var(--color-terracotta-light);
}

.footer__social svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
}

/* --- Responsive --- */

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

@media (max-width: 768px) {
  .nav__links,
  .nav__social {
    display: none;
  }

  .nav__toggle {
    display: flex;
  }

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

  .footer__inner {
    grid-template-columns: 1fr;
    gap: var(--space-7);
  }

  .footer__bottom {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }
}