/* Silva Digital background system */

body::before {
  content: '';
  position: fixed;
  inset: var(--frame-inset);
  border: 1px solid var(--glass-border);
  border-radius: var(--frame-radius);
  pointer-events: none;
  z-index: 9999;
  box-shadow: 0 0 40px rgba(139, 156, 198, 0.02) inset;
}

.edge-mask {
  position: fixed;
  inset: var(--frame-inset);
  border-radius: var(--frame-radius);
  box-shadow: 0 0 0 9999px var(--bg-deep);
  z-index: 5;
  pointer-events: none;
}

.page-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  background-image: url('../assets/Background.jpg');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  opacity: 0.45;
  filter: brightness(0.55) saturate(0.6);
  pointer-events: none;
}

.grain-overlay {
  position: absolute;
  inset: 0;
  opacity: 0.025;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
  background-repeat: repeat;
  background-size: 128px;
}

.ambient.orbs {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  opacity: 0;
  animation: orbFade 2s var(--ease-out) forwards;
}

.orb-1 {
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(100, 120, 180, 0.02), transparent 70%);
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  animation-delay: 0.5s;
}

.orb-2 {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(80, 100, 160, 0.02), transparent 70%);
  top: 50%;
  right: -150px;
  animation-delay: 1s;
}

.orb-3 {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(120, 130, 170, 0.02), transparent 70%);
  bottom: 10%;
  left: -100px;
  animation-delay: 1.5s;
}

@keyframes orbFade {
  to { opacity: 1; }
}

/* Brand row — centred SilvaShift logo */
.logo-wordmark--sidebar-centre {
  display: block;
  width: auto;
  max-width: min(200px, 78%);
  max-height: clamp(52px, 10vw, 72px);
  height: auto;
  margin: 0 auto;
  object-fit: contain;
}

.logo-wordmark--auth-centre {
  display: block;
  width: auto;
  max-width: min(260px, 82vw);
  max-height: clamp(64px, 14vw, 88px);
  height: auto;
  margin: 0 auto;
  object-fit: contain;
}

.logo-wordmark--topbar {
  display: block;
  width: auto;
  max-width: 100%;
  max-height: 32px;
  height: auto;
  margin: 0 auto;
  object-fit: contain;
}

.powered-by-badge {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 14px;
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-btn);
  background: var(--glass-bg);
  box-shadow: 0 0 24px rgba(139, 156, 198, 0.04);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.powered-by-badge:hover {
  border-color: var(--glass-border-hover);
  box-shadow: 0 0 32px rgba(139, 156, 198, 0.08);
}

.powered-by-emblem {
  width: 28px;
  height: 28px;
  object-fit: contain;
  border-radius: 4px;
  flex-shrink: 0;
}

.powered-by-text {
  font-size: 9px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-muted);
  line-height: 1.3;
  text-align: left;
}

/* Scroll reveal — Silva Digital */
/* Auth screen — always visible (no scroll-reveal dependency) */
.auth-page .reveal {
  opacity: 1;
  transform: none;
}

.auth-page .reveal.faded-out {
  opacity: 1;
  transform: none;
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 1s var(--ease-out), transform 1s var(--ease-out);
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal.faded-out {
  opacity: 0;
  transform: translateY(-20px);
  transition: opacity 0.6s var(--ease-in-out), transform 0.6s var(--ease-in-out);
}

@media (max-width: 900px) {
  .page-bg {
    background-attachment: scroll;
  }

  .orb {
    animation: none;
    opacity: 0.4;
  }
}

@media (prefers-reduced-motion: reduce) {
  .orb { animation: none; opacity: 0.4; }
  .reveal, .reveal.revealed, .reveal.faded-out {
    opacity: 1 !important;
    transform: none !important;
    transition: none !important;
  }
}