/* ============================================
   LAYOUT — Navigation, Grid, Containers
   ============================================ */

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

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

/* --- Sections --- */
.section {
  padding: var(--space-5xl) 0;
  position: relative;
}

.section--hero {
  /* min-height: 100vh; */
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.section__header {
  text-align: center;
  margin-bottom: var(--space-4xl);
}

.section__label {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.7rem;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
  font-weight: 600;
}

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

.section__subtitle {
  color: var(--color-text-muted);
  max-width: 600px;
  margin: 0 auto;
  font-size: 1.05rem;
}

/* --- Divider --- */
.divider {
  width: 60px;
  height: 1px;
  background: var(--color-accent);
  margin: var(--space-xl) auto;
}

/* --- Navigation --- */
/* .nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: calc(var(--nav-height) + env(safe-area-inset-top, 0px));
  padding-top: env(safe-area-inset-top, 0px);
  z-index: 1000;
  display: flex;
  padding-top: env(safe-area-inset-top);
  align-items: center;
  transition: background var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
} */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: calc(var(--nav-height) + env(safe-area-inset-top, 0px));
  padding-top: env(safe-area-inset-top, 0px);
  z-index: 10000;
  display: flex;
  align-items: center;
  /* Solid dark background to cover status bar area and prevent content showing behind it */
  background: var(--color-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: background var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

.nav--scrolled {
  background: var(--color-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--color-border);
}

.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-xl);
}

.nav__logo {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: 0.02em;
}

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

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
}

.nav__link {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--duration-fast) var(--ease-out);
  position: relative;
}

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

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

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

/* --- Mobile menu toggle --- */
.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  z-index: 1001;
}

.nav__toggle span {
  width: 24px;
  height: 1.5px;
  background: var(--color-white);
  transition: transform var(--duration-normal) var(--ease-out),
              opacity var(--duration-fast);
}

.nav__toggle--open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

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

.nav__toggle--open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* --- Footer --- */
.footer {
  padding: var(--space-4xl) 0 var(--space-2xl);
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.footer__content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xl);
}

.footer__logo {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  color: var(--color-white);
}

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

.footer__socials {
  display: flex;
  gap: var(--space-lg);
}

.footer__social-link {
  color: var(--color-text-muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: color var(--duration-fast) var(--ease-out);
}

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

.footer__copy {
  color: var(--color-text-dim);
  font-size: 0.8rem;
}

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

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

@media (max-width: 768px) {
  .container {
    padding: 0 var(--space-lg);
  }

  .section {
    padding: var(--space-4xl) 0;
  }

  .nav__links {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    /* height: 100vh; */
    height: 100svh;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    background: rgba(10, 10, 10, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    gap: var(--space-2xl);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--duration-normal) var(--ease-out),
                visibility var(--duration-normal);
    z-index: 1000;
  }

  .nav__links--open {
    opacity: 1;
    visibility: visible;
  }

  .nav__links--open .nav__link {
    font-size: 1.2rem;
  }

  .nav__toggle {
    display: flex;
  }

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