/* ── SCROLL PROGRESS BAR ── */
#scrollProgress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  z-index: 300;
  background: linear-gradient(90deg, var(--c-violet), var(--c-blue));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.08s linear;
  pointer-events: none;
}

/* ── NAV ── */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  padding: 18px 52px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.5s, border-color 0.5s;
  border-bottom: 1px solid transparent;
}

nav.scrolled {
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(32px);
  -webkit-backdrop-filter: blur(32px);
  border-color: var(--c-border);
}

.nav-logo {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.6px;
  background: var(--grad-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.45);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: -0.1px;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: #fff;
}

/* ── HAMBURGER ── */
.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 201;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: rgba(255, 255, 255, 0.7);
  border-radius: 2px;
  transition: transform 0.3s var(--ease-out), opacity 0.3s;
}

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

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

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

/* ── MOBILE NAV ── */
@media (max-width:960px) {
  nav {
    padding: 16px 20px;
  }

  .nav-hamburger {
    display: flex;
  }

  .nav-links {
    display: none;
    flex-direction: column;
    position: fixed;
    top: 57px;
    left: 0;
    right: 0;
    background: rgba(0, 0, 0, 0.96);
    padding: 24px 24px 32px;
    gap: 22px;
    border-bottom: 1px solid var(--c-border);
    z-index: 199;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.7);
  }
}