/* ════════════════
   NAV
   ════════════════ */
#navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--nav-h);
  padding: 0 2rem;
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(8,12,20,0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background 0.3s, box-shadow 0.3s;
}
#navbar.scrolled {
  background: rgba(8,12,20,0.97);
  box-shadow: 0 4px 30px rgba(0,0,0,0.4);
}

.nav-logo {
  display: flex; align-items: center; gap: 0.6rem;
  text-decoration: none; color: var(--text);
  font-family: var(--font-d); font-weight: 700; font-size: 1.05rem;
}
.nav-logo-icon {
  width: 34px; height: 34px; border-radius: 9px;
  background: var(--grad);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.78rem; font-weight: 800; color: #fff;
  flex-shrink: 0;
}

.nav-links { display: flex; gap: 2rem; list-style: none; }
.nav-links a {
  color: var(--text2); text-decoration: none;
  font-size: 0.875rem; font-weight: 500;
  transition: color 0.2s; position: relative; padding-bottom: 2px;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -2px; left: 0;
  width: 0; height: 1.5px; background: var(--cyan);
  transition: width 0.3s var(--ease);
}
.nav-links a:hover,
.nav-links a.active { color: var(--text); }
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }

.nav-cta {
  padding: 0.48rem 1.2rem; border-radius: 8px;
  background: var(--grad); color: #fff;
  font-weight: 600; font-size: 0.875rem;
  text-decoration: none; transition: opacity 0.2s, transform 0.2s;
}
.nav-cta:hover { opacity: 0.84; transform: translateY(-1px); }

/* hamburger */
.hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.hamburger span {
  display: block; width: 24px; height: 2px;
  background: var(--text); border-radius: 2px;
  transition: all 0.3s;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* mobile drawer */
.mobile-drawer {
  position: fixed; top: 0; right: 0; bottom: 0;
  width: min(320px, 100%);
  background: var(--bg2);
  border-left: 1px solid var(--border);
  z-index: 999;
  display: flex; flex-direction: column;
  padding: 2rem;
  transform: translateX(100%);
  transition: transform 0.35s var(--ease);
}
.mobile-drawer.open { transform: none; }

.drawer-close {
  align-self: flex-end; background: none; border: none;
  color: var(--text2); font-size: 1.4rem; cursor: pointer;
  margin-bottom: 2rem; transition: color 0.2s;
}
.drawer-close:hover { color: var(--cyan); }

.drawer-nav { display: flex; flex-direction: column; gap: 1.5rem; flex: 1; }
.drawer-nav a {
  color: var(--text); text-decoration: none;
  font-family: var(--font-d); font-size: 1.4rem; font-weight: 700;
  transition: color 0.2s; letter-spacing: -0.01em;
}
.drawer-nav a:hover { color: var(--cyan); }
.drawer-cta {
  display: inline-block; padding: 0.7rem 1.4rem;
  border-radius: 10px; background: var(--grad);
  color: #fff !important; font-size: 1rem !important;
  text-align: center; margin-top: 0.5rem;
}

.drawer-socials { display: flex; gap: 1rem; padding-top: 1.5rem; border-top: 1px solid var(--border); }
.drawer-socials a {
  width: 40px; height: 40px; border-radius: 10px;
  border: 1px solid var(--border); background: var(--card);
  display: flex; align-items: center; justify-content: center;
  color: var(--text2); transition: all 0.2s;
}
.drawer-socials a:hover { color: var(--cyan); border-color: var(--border2); }

.drawer-overlay {
  position: fixed; inset: 0; z-index: 998;
  background: rgba(0,0,0,0.6); backdrop-filter: blur(4px);
  opacity: 0; pointer-events: none; transition: opacity 0.3s;
}
.drawer-overlay.show { opacity: 1; pointer-events: all; }