/* ===== Background ============================================== */
.ambient-bg {
  overflow: hidden;

  position: fixed;
  z-index: 0;
  inset: 0;

  pointer-events: none;
}
.orb {
  position: absolute;

  animation: float 20s ease-in-out infinite;
  filter: blur(8rem);

  border-radius: 50%;
}
.orb-1 {
  top: -20rem;
  left: -20rem;

  width: 60rem;
  height: 60rem;

  background: radial-gradient(circle, var(--glow-primary) 0%, transparent 70%);
}
.orb-2 {
  right: -15rem;
  bottom: -15rem;

  width: 50rem;
  height: 50rem;

  animation-delay: -7s;

  background: radial-gradient(
    circle,
    var(--glow-secondary) 0%,
    transparent 70%
  );
}
.orb-3 {
  top: 50%;
  left: 50%;

  width: 40rem;
  height: 40rem;

  transform: translate(-50%, -50%);
  animation-delay: -14s;

  background: radial-gradient(circle, var(--lavender-10) 0%, transparent 70%);
}
@keyframes float {
  0%,
  100% {
    transform: translate(0, 0) scale(1);
  }
  25% {
    transform: translate(5rem, -3rem) scale(1.05);
  }
  50% {
    transform: translate(-3rem, 5rem) scale(0.95);
  }
  75% {
    transform: translate(-5rem, -2rem) scale(1.02);
  }
}

/* ===== Overlays ================================================ */
.grid-overlay {
  position: fixed;
  z-index: 1;
  inset: 0;

  background-image:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 8rem 8rem;
  pointer-events: none;
}
.scanline-overlay {
  position: fixed;
  z-index: 1;
  inset: 0;

  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 0.2rem,
    rgba(0, 0, 0, 0.08) 0.2rem,
    rgba(0, 0, 0, 0.08) 0.4rem
  );
  pointer-events: none;
}

/* ===== Loading Screen ========================================== */
.loading-screen {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;

  position: fixed;
  inset: 0;
  z-index: 10000;

  transition:
    opacity 0.8s ease,
    visibility 0.8s ease;
  background: var(--clr-base-900);
}
.loading-screen.hidden {
  visibility: hidden;

  opacity: 0;
}
.loader-ring {
  position: relative;

  width: 8rem;
  height: 8rem;
}
.loader-ring::before,
.loader-ring::after {
  position: absolute;

  content: "";
  border-radius: 50%;
  border: 0.2rem solid transparent;
}
.loader-ring::before {
  inset: 0;

  animation: spin 1.2s linear infinite;

  border-top-color: var(--clr-primary);
  border-right-color: var(--clr-primary);
}
.loader-ring::after {
  inset: 1rem;

  animation: spin 0.8s linear infinite reverse;

  border-bottom-color: var(--clr-secondary);
  border-left-color: var(--clr-secondary);
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
.loading-text {
  margin-top: 3rem;

  font-size: var(--txt-small);
  letter-spacing: 0.4rem;
  color: var(--clr-primary);
  text-transform: uppercase;
}

/* ===== Branding ================================================ */
.logo {
  position: relative;

  width: 9rem;
  height: 9rem;
  margin: 0 auto 2.5rem;
}

.logo svg {
  width: 100%;
  height: 100%;

  filter: drop-shadow(0 0 0.5rem var(--glow-primary));
}

.brand-name {
  text-transform: uppercase;

  background: linear-gradient(
    135deg,
    var(--clr-primary),
    var(--clr-primary-200),
    var(--clr-secondary)
  );
  background-clip: text;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Smaller logo & header */
.sub-header {
  display: flex;
  align-items: center;
  gap: 1.2rem;

  position: fixed;
  top: 2rem;
  left: 2rem;
  z-index: 100;

  padding: 1.2rem 2rem;

  border: 1px solid var(--glass-border);
  border-radius: 5rem;
  backdrop-filter: blur(2rem);
  background: var(--glass-bg);
}

.sub-logo {
  width: 3.2rem;
  height: 3.2rem;
}

.sub-logo svg {
  width: 100%;
  height: 100%;

  filter: drop-shadow(0 0 1rem var(--glow-primary));
}

.sub-brand {
  font-size: var(--txt-large);
  color: var(--clr-primary-600);
  font-weight: 600;
  letter-spacing: 0.4rem;

  transition: all 0.3s ease;
}

.sub-brand:hover {
  color: var(--clr-primary);
}