/* ============================================================
   NAVBAR
============================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 2rem;
  background: transparent;
  transition: background var(--trans-mid), box-shadow var(--trans-mid),
              padding var(--trans-mid);
}

.navbar.scrolled {
  background: rgba(26, 46, 26, 0.97);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-md);
  padding: .6rem 2rem;
}

/* Brand */
.navbar__brand {
  display: flex;
  align-items: center;
  gap: .5rem;
  color: var(--white);
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
}
.navbar__icon { font-size: 1.4rem; }

/* Hamburger */
.navbar__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: .5rem;
  z-index: 1001;
}
.navbar__hamburger span {
  display: block;
  width: 26px;
  height: 2.5px;
  background: var(--white);
  border-radius: 2px;
  transition: transform var(--trans-mid), opacity var(--trans-mid);
}
.navbar__hamburger.active span:nth-child(1) {
  transform: translateY(7.5px) rotate(45deg);
}
.navbar__hamburger.active span:nth-child(2) {
  opacity: 0;
}
.navbar__hamburger.active span:nth-child(3) {
  transform: translateY(-7.5px) rotate(-45deg);
}

/* Menu */
.navbar__list {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.navbar__link {
  position: relative;
  color: rgba(255,255,255,.85);
  font-size: .95rem;
  font-weight: 600;
  letter-spacing: .03em;
  padding: .25rem 0;
  transition: color var(--trans-fast);
}
.navbar__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--green-pale);
  transition: width var(--trans-mid);
}
.navbar__link:hover,
.navbar__link.active {
  color: var(--green-pale);
}
.navbar__link:hover::after,
.navbar__link.active::after {
  width: 100%;
}

/* Responsive */
@media (max-width: 768px) {
  .navbar__hamburger { display: flex; }

  .navbar__menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: min(320px, 85vw);
    height: 100vh;
    background: var(--green-darkest);
    padding: 6rem 2rem 2rem;
    transition: right var(--trans-mid);
    box-shadow: -4px 0 24px rgba(0,0,0,.3);
    overflow-y: auto;
  }
  .navbar__menu.open { right: 0; }

  .navbar__list {
    flex-direction: column;
    align-items: flex-start;
    gap: .5rem;
  }

  .navbar__link {
    font-size: 1.1rem;
    color: var(--white);
    display: block;
    padding: .75rem 1rem;
    width: 100%;
    border-radius: var(--radius-sm);
  }
  .navbar__link:hover {
    background: rgba(255,255,255,.08);
    color: var(--green-pale);
  }
  .navbar__link::after { display: none; }
}