*,
*::before,
*::after {
  box-sizing: border-box;
}


/* =========================
   NAV BAR
========================= */
.glass-nav {
  position: fixed;
  top: 0;
  z-index: 1200;

  width: 100%;
  padding: 10px clamp(16px, 4vw, 32px);

  background: rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(20px) saturate(100%);
  -webkit-backdrop-filter: blur(20px) saturate(0%);

  
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;

  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* =========================
   HAMBURGER BUTTON
========================= */
.nav-toggle {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;

  width: 42px;
  height: 42px;

  background: rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);

  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 14px;

  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  position: absolute;
  width: 18px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.2s ease;
}

.nav-toggle span:nth-child(1) {
  transform: translateY(-6px);
}
.nav-toggle span:nth-child(2) {
  transform: translateY(0);
}
.nav-toggle span:nth-child(3) {
  transform: translateY(6px);
}

/* Open state (X animation) */
.nav-toggle.open span:nth-child(1) {
  transform: rotate(45deg);
}
.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.open span:nth-child(3) {
  transform: rotate(-45deg);
}

/* =========================
   CTA BUTTON
========================= */
.nav-cta {
  padding: 10px 18px;
  border-radius: 14px;
  border: none;
  outline: none;
  font-weight: 600;
  color: #fff;
  background: #007bff;
  text-decoration: none;
  user-select: none;
  cursor: pointer;
}

.nav-cta:focus,
.nav-cta:focus-visible {
  outline: none;
}

/* =========================
   DRAWER + BACKDROP
========================= */
.nav-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(2, 13, 34, 0.45);
  backdrop-filter: blur(2px);
  -webkit-backdrop-filter: blur(2px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 220ms ease;
  z-index: 1300;
}

.nav-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

.nav-drawer {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  transform: translateX(-106%);

  width: min(86vw, 360px);
  padding-top: calc(74px + env(safe-area-inset-top, 0px));
  padding-inline: 16px;
  padding-bottom: 20px;

  background:
    linear-gradient(
      180deg,
      rgba(16, 52, 103, 0.7) 0%,
      rgba(8, 27, 61, 0.76) 55%,
      rgba(4, 16, 40, 0.78) 100%
    );
  backdrop-filter: blur(24px) saturate(130%);
  -webkit-backdrop-filter: blur(24px) saturate(130%);
  
  box-shadow:
    14px 0 48px rgba(0, 0, 0, 0.42),
    inset 0 1px 0 rgba(255, 255, 255, 0.16);

  display: flex;
  flex-direction: column;
  gap: 10px;

  opacity: 0;
  pointer-events: none;
  transition: transform 260ms cubic-bezier(0.22, 1, 0.36, 1), opacity 160ms ease;
  z-index: 1310;
}

.nav-drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 44px;
  margin-bottom: 6px;
}

.nav-drawer-title {
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.66);
  font-weight: 700;
}

.nav-drawer-close {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.26);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  font-size: 1.2rem;
  line-height: 1;
  cursor: pointer;
  transition: background 160ms ease, transform 160ms ease;
}

.nav-drawer-close:hover {
  background: rgba(255, 255, 255, 0.2);
  transform: translateY(-1px);
}

.nav-drawer a {
  display: flex;
  align-items: center;
  min-height: 48px;
  padding: 0 14px;
  border-radius: 14px;
  color: #fff;
  font-weight: 600;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: background 160ms ease, transform 160ms ease;
}

.nav-drawer a:hover {
  background: rgba(255, 255, 255, 0.18);
  transform: translateX(2px);
}

/* OPEN STATE */
.nav-drawer.open {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(0);
}