/* ================================================
   Sofía Abud — Layout Stylesheet
   ================================================ */

/* --- Top Bar (Sticky Header) --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: #ffffff;
  padding: 1.5rem 3rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-direction: row;
}

.site-name {
  font-family: 'Gambetta', serif;
  font-size: 2.8rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: lowercase;
  color: var(--accent-color);
  white-space: nowrap;
  cursor: pointer;
  transition: opacity 0.3s ease;
}

.site-name:hover {
  opacity: 0.7;
}

/* --- Navigation --- */
.site-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  gap: 1.8rem;
}

.nav-list a {
  font-family: 'Gambetta', serif;
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: lowercase;
  color: #888888;
  transition: color 0.25s ease;
  position: relative;
}

.nav-list a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--accent-color);
  transition: width 0.25s ease;
}

.nav-list a:hover,
.nav-list a.active {
  color: var(--accent-color);
}

.nav-list a:hover::after,
.nav-list a.active::after {
  width: 100%;
}

/* Hamburger (mobile only) */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 200;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--accent-color);
  margin: 5px 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

/* --- Footer --- */
.site-footer {
  padding: 3rem;
  text-align: center;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: #555555;
}

/* Responsive — Mobile */
@media (max-width: 768px) {
  .site-header {
    flex-direction: row;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
  }

  .site-name {
    font-size: 1.8rem;
    letter-spacing: 0.08em;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background-color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: right 0.4s ease;
    z-index: 150;
  }

  body.nav-open .site-nav {
    right: 0;
  }

  .nav-list {
    flex-direction: column;
    align-items: center;
    gap: 2.5rem;
  }

  .nav-list a {
    font-size: 2rem;
    letter-spacing: 0.08em;
  }

  body.nav-open .nav-toggle span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  body.nav-open .nav-toggle span:nth-child(2) {
    opacity: 0;
  }

  body.nav-open .nav-toggle span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
}