/* ============================================================
   NAVIGATION — hamburger button + mobile slide-out menu
   ============================================================ */
.hamburger-container {
  position: fixed;
  top: 24px;
  left: 20px;
  z-index: 9999;
}

.hamburger-btn {
  background: rgba(11,12,9,0.7);
  backdrop-filter: blur(14px);
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  width: 52px;
  height: 52px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  cursor: pointer;
  transition: border-color 0.35s var(--ease), background 0.35s var(--ease);
}

.hamburger-btn:hover {
  border-color: var(--neon);
  background: rgba(11,12,9,0.85);
}

.hamburger-line {
  width: 22px;
  height: 1.5px;
  background: var(--ink);
  border-radius: 2px;
  transition: all 0.4s var(--ease);
}

.hamburger-btn:hover .hamburger-line {
  background: var(--neon);
}

.hamburger-btn.active .hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}
.hamburger-btn.active .hamburger-line:nth-child(2) {
  opacity: 0;
}
.hamburger-btn.active .hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

.mobile-menu {
  position: fixed;
  top: 0;
  left: -100%;
  width: 85%;
  max-width: 360px;
  height: 100vh;
  background: var(--bg-elevated);
  backdrop-filter: blur(20px);
  border-right: 1px solid var(--line);
  box-shadow: 40px 0 80px rgba(0,0,0,0.4);
  transition: left 0.5s var(--ease);
  z-index: 9998;
  display: flex;
  flex-direction: column;
  padding: 2rem;
}

.mobile-menu.active { left: 0; }

.menu-header {
  text-align: center;
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--line);
}

.menu-logo { height: 80px; width: auto; }

.menu-links {
  list-style: none;
  flex: 1;
  overflow-y: auto;
  padding-right: 10px;
}

.menu-links li {
  margin: 0;
  border-bottom: 1px solid var(--line);
}

.menu-links a {
  color: var(--ink-soft);
  font-family: 'Rajdhani', sans-serif;
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-decoration: none;
  transition: all 0.3s var(--ease);
  display: block;
  padding: 1rem 0.25rem;
}

.menu-links a:hover {
  color: var(--neon);
  transform: translateX(6px);
}