/* =============================================
   NexusGPU — Auth Styles v2.0
   Premium Dark · Fintech
   ============================================= */

.auth-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  position: relative;
  overflow: hidden;
  background: var(--bg-void);
}

.auth-bg-grid {
  position: fixed; inset: 0; z-index: 0;
  background: none;
}

.auth-bg-glow {
  position: fixed;
  top: 40%; left: 50%;
  transform: translate(-50%, -50%);
  width: 700px; height: 700px;
  background: radial-gradient(circle,
    rgba(201, 168, 76, 0.04) 0%,
    transparent 60%);
  z-index: 0;
  pointer-events: none;
}

.auth-card {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 440px;
  background: var(--bg-card);
  border: 1px solid var(--border-dim);
  border-radius: 18px;
  padding: 44px;
  box-shadow: 0 24px 64px rgba(0,0,0,0.5);
  animation: fadeInUp 0.4s ease both;
}

.auth-card::before {
  content: '';
  position: absolute;
  top: 0; left: 15%; right: 15%;
  height: 1px;
  background: linear-gradient(90deg,
    transparent,
    rgba(201, 168, 76, 0.3) 50%,
    transparent);
}

.auth-logo {
  text-align: center;
  margin-bottom: 32px;
}
.auth-logo-name {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  display: block;
}
.auth-logo-sub {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  display: block;
  margin-top: 6px;
}

.auth-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: 24px;
}
.auth-divider {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 28px;
}
.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-dim);
}
.auth-divider span {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

/* Submit */
.btn-auth {
  width: 100%;
  padding: 13px;
  background: var(--accent, #c9a84c);
  border: 1px solid var(--accent, #c9a84c);
  border-radius: 10px;
  color: #0a0a0a;
  font-family: var(--font-display, 'Inter', sans-serif);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0;
  cursor: pointer;
  transition: all 0.2s;
  margin-top: 8px;
}
.btn-auth:hover {
  background: #d4b45e;
  border-color: #d4b45e;
  box-shadow: 0 6px 24px rgba(201, 168, 76, 0.25);
  color: #0a0a0a;
  letter-spacing: 0;
}

.auth-footer {
  text-align: center;
  margin-top: 24px;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.auth-footer a {
  color: var(--accent-text, #d4b45e);
  font-weight: 600;
}

/* Password Strength */
.password-strength {
  display: flex;
  gap: 4px;
  margin-top: 8px;
}
.strength-bar {
  flex: 1;
  height: 3px;
  background: rgba(255,255,255,0.06);
  border-radius: 4px;
  transition: background 0.3s;
}
.strength-bar.active-weak   { background: #f87171; }
.strength-bar.active-medium { background: #fb923c; }
.strength-bar.active-strong { background: #4ade80; }