/**
 * IIEC - UNIFIED MOBILE NAVIGATION DRAWER
 * Next Gen Pitch & Obsidian Dark Aesthetics
 * High-performance slide-out panel with staggered link reveals and interactive telemetry
 */

.mobile-nav-drawer {
  position: fixed;
  inset: 0;
  z-index: 99990;
  visibility: hidden;
  opacity: 0;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  pointer-events: none;
}

.mobile-nav-drawer.open {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.mobile-nav-drawer.open .mobile-nav-backdrop {
  opacity: 1;
}

.mobile-nav-panel {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(380px, 86vw);
  background: #111111;
  color: #ffffff;
  border-left: 1px solid rgba(255, 255, 255, 0.12);
  padding: 28px 24px 30px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transform: translateX(100%);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  box-shadow: -20px 0 60px rgba(0, 0, 0, 0.5);
  z-index: 2;
}

.mobile-nav-drawer.open .mobile-nav-panel {
  transform: translateX(0);
}

.mobile-nav-panel-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-nav-panel-top .brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.04em;
  color: #ffffff;
}

.mobile-nav-panel-top .brand span {
  color: #ff5a1f;
}

.mobile-nav-panel-top .brand-logo {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.mobile-drawer-close {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: #ffffff;
  font-size: 16px;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: all 0.2s ease;
  padding: 0;
  font-family: inherit;
}

.mobile-drawer-close:hover {
  background: #ff5a1f;
  border-color: #ff5a1f;
  transform: scale(1.08);
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 24px 0;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 14px;
  border-radius: 12px;
  color: #deded8;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-decoration: none;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  opacity: 0;
  transform: translateX(20px);
}

.mobile-nav-drawer.open .mobile-nav-link {
  opacity: 1;
  transform: translateX(0);
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1) calc(var(--item-index, 1) * 0.05s),
              opacity 0.4s ease calc(var(--item-index, 1) * 0.05s),
              background 0.2s ease, color 0.2s ease;
}

.mobile-nav-link:hover {
  background: rgba(255, 255, 255, 0.07);
  color: #ffffff;
  transform: translateX(4px) !important;
}

.mobile-nav-link.active {
  background: rgba(255, 90, 31, 0.15);
  color: #ff5a1f;
  border: 1px solid rgba(255, 90, 31, 0.3);
}

.link-num {
  font-size: 11px;
  font-weight: 900;
  letter-spacing: 0.08em;
  color: #ff5a1f;
  width: 26px;
}

.link-text {
  flex: 1;
}

.link-badge {
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  background: #ff5a1f;
  color: #ffffff;
  padding: 2px 8px;
  border-radius: 999px;
  margin-right: 8px;
  letter-spacing: 0.04em;
}

.link-arrow {
  color: #777777;
  transition: transform 0.2s ease, color 0.2s ease;
}

.mobile-nav-link:hover .link-arrow {
  transform: translateX(4px);
  color: #ff5a1f;
}

.mobile-nav-highlight-box {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: 16px;
  margin-bottom: 20px;
}

.mobile-highlight-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 10px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #ff5a1f;
  margin-bottom: 6px;
}

.mobile-highlight-title {
  font-size: 15px;
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 4px;
}

.mobile-highlight-desc {
  font-size: 12px;
  color: #aaaaaa;
  line-height: 1.45;
}

.mobile-nav-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.mobile-join-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  font-weight: 700;
  color: #ff7b4c;
  padding: 8px 0;
  text-decoration: none;
  transition: color 0.2s ease;
}

.mobile-join-link:hover {
  color: #ffffff;
}

.mobile-socials {
  display: flex;
  gap: 16px;
  font-size: 12px;
  color: #888888;
}

.mobile-socials a {
  color: #aaaaaa;
  text-decoration: none;
  transition: color 0.2s ease;
}

.mobile-socials a:hover {
  color: #ff5a1f;
}

.mobile-nav-drawer .pulse-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #ff5a1f;
  display: inline-block;
  animation: iiecPulse 1.8s infinite cubic-bezier(0.4, 0, 0.6, 1);
}

@keyframes iiecPulse {
  0%, 100% {
    transform: scale(1);
    opacity: 1;
    box-shadow: 0 0 0 0 rgba(255, 90, 31, 0.7);
  }
  50% {
    transform: scale(1.15);
    opacity: 0.85;
    box-shadow: 0 0 0 5px rgba(255, 90, 31, 0);
  }
}

.mobile-nav-highlight-box .btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: inherit;
  font-weight: 700;
  text-decoration: none;
  border-radius: 8px;
  cursor: pointer;
  border: none;
  font-size: 13px;
  padding: 10px 16px;
  background: #ff5a1f;
  color: #ffffff;
  transition: background 0.2s ease, transform 0.2s ease;
}

.mobile-nav-highlight-box .btn:hover {
  background: #e04a14;
  transform: translateY(-1px);
}

/* Hamburger button trigger styling */
.hamburger-btn,
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1002;
  color: #111111;
}

.hamburger-btn span,
.menu-toggle span {
  display: block;
  height: 2.5px;
  width: 100%;
  background: currentColor;
  border-radius: 4px;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.2s ease, background 0.3s ease;
}

.hamburger-btn.active span:nth-child(1),
.menu-toggle.active span:nth-child(1),
.hamburger-btn[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(8.75px) rotate(45deg);
  background: #ff5a1f;
}

.hamburger-btn.active span:nth-child(2),
.menu-toggle.active span:nth-child(2),
.hamburger-btn[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.hamburger-btn.active span:nth-child(3),
.menu-toggle.active span:nth-child(3),
.hamburger-btn[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-8.75px) rotate(-45deg);
  background: #ff5a1f;
}

@media (max-width: 850px) {
  .hamburger-btn,
  .menu-toggle {
    display: flex !important;
  }

  .nav-right,
  .nav-links,
  .main-nav .nav-right,
  .nav-cta {
    display: none !important;
  }
}