/* ログイン画面専用スタイル */
.login-body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  position: relative;
  overflow: hidden;
  /* 多層オーロラ＋深色ベースで雰囲気のある背景 */
  background:
    radial-gradient(ellipse 60% 50% at 18% 22%, rgba(124, 58, 237, 0.35), transparent 60%),
    radial-gradient(ellipse 55% 60% at 82% 18%, rgba(56, 189, 248, 0.25), transparent 60%),
    radial-gradient(ellipse 60% 50% at 75% 82%, rgba(236, 72, 153, 0.25), transparent 60%),
    radial-gradient(ellipse 55% 65% at 20% 85%, rgba(34, 197, 94, 0.15), transparent 60%),
    linear-gradient(135deg, #0a0818 0%, #161033 45%, #0c1226 100%);
  color: #fafafa;
}

/* ふわっと漂うブラー光球（オーロラ感の強調） */
.login-body::before {
  content: "";
  position: absolute;
  inset: -10%;
  background:
    radial-gradient(circle 320px at 28% 32%, rgba(167, 139, 250, 0.22), transparent 70%),
    radial-gradient(circle 380px at 72% 68%, rgba(96, 165, 250, 0.18), transparent 70%),
    radial-gradient(circle 260px at 50% 50%, rgba(244, 114, 182, 0.14), transparent 70%);
  filter: blur(36px);
  pointer-events: none;
  animation: loginOrbDrift 30s ease-in-out infinite alternate;
  z-index: 0;
}

/* テック感の微細グリッド */
.login-body::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, black 40%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 40%, transparent 80%);
  pointer-events: none;
  z-index: 0;
}

@keyframes loginOrbDrift {
  0%   { transform: translate(0, 0)        rotate(0deg); }
  50%  { transform: translate(40px, -30px) rotate(8deg); }
  100% { transform: translate(-30px, 25px) rotate(-6deg); }
}

.login-screen { position: relative; z-index: 2; }

/* グラスモーフィズム風カード（透明感＋背景ぼかし） */
.login-card {
  background: rgba(18, 14, 35, 0.78) !important;
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 0.5px solid rgba(255, 255, 255, 0.10) !important;
  box-shadow:
    0 24px 60px rgba(0, 0, 0, 0.55),
    0 0 0 1px rgba(255, 255, 255, 0.04),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
}

/* カード内のテキストを背景に合わせて明るく */
.login-body .login-head h1 { color: #fafafa; }
.login-body .login-head p,
.login-body .login-label,
.login-body .login-hint summary { color: rgba(255, 255, 255, 0.7); }
.login-body .login-field input {
  background: rgba(255, 255, 255, 0.06) !important;
  border-color: rgba(255, 255, 255, 0.15) !important;
  color: #fafafa !important;
}
.login-body .login-field input:focus {
  background: rgba(255, 255, 255, 0.10) !important;
  border-color: rgba(167, 139, 250, 0.6) !important;
  box-shadow: 0 0 0 3px rgba(167, 139, 250, 0.25) !important;
}
.login-body .login-hint {
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(255, 255, 255, 0.08);
}
.login-body .login-demo th { color: rgba(255, 255, 255, 0.5); border-color: rgba(255, 255, 255, 0.1); }
.login-body .login-demo td { color: rgba(255, 255, 255, 0.75); }
.login-body .login-demo code {
  background: rgba(255, 255, 255, 0.08);
  color: #c7d2fe;
}
.login-body .login-demo tbody tr:hover { background: rgba(255, 255, 255, 0.04); }
.login-screen {
  width: 100%;
  max-width: 440px;
}
.login-card {
  background: var(--bg-elevated);
  border: 0.5px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 36px 32px 28px;
  box-shadow: var(--shadow-lg);
}
.login-head { text-align: center; margin-bottom: 28px; }
.login-head .brand-mark {
  width: 56px; height: 56px; margin: 0 auto 16px;
  border-radius: 14px; font-size: 28px;
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-accent);
}
.login-head h1 {
  margin: 0; font-size: 22px; font-weight: 700;
  letter-spacing: -0.02em;
}
.login-head p { margin: 4px 0 0; }

.login-form {
  display: flex; flex-direction: column; gap: 14px;
}
.login-field { display: flex; flex-direction: column; gap: 6px; }
.login-label {
  display: flex; align-items: center; gap: 6px;
  font-size: 12px; font-weight: 500;
  color: var(--text-secondary);
}
.login-label i { font-size: 14px; }
.login-field input {
  padding: 10px 14px; font-size: 14px;
  font-family: var(--font-sans);
  border: 0.5px solid var(--border-strong);
  border-radius: var(--radius);
  background: var(--bg-soft);
  color: var(--text);
  transition: border-color var(--transition), box-shadow var(--transition);
}
.login-field input:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--bg-elevated);
  box-shadow: 0 0 0 3px var(--border-focus);
}
.login-error {
  padding: 10px 12px;
  background: var(--danger-bg);
  color: var(--danger-fg);
  border: 0.5px solid var(--danger-border);
  border-radius: var(--radius);
  font-size: 13px;
  display: flex; align-items: center; gap: 6px;
}
/* hidden 属性のときは display:flex を上書きして非表示にする */
.login-error[hidden] { display: none; }
.login-submit {
  margin-top: 8px;
  padding: 12px 14px;
  font-size: 14px;
  font-weight: 600;
}
.login-hint {
  margin-top: 28px;
  padding: 12px 14px;
  background: var(--bg-soft);
  border: 0.5px solid var(--border);
  border-radius: var(--radius);
  font-size: 12px;
}
.login-hint summary {
  cursor: pointer;
  font-weight: 500;
  color: var(--text-secondary);
  user-select: none;
}
.login-hint summary i { font-size: 14px; margin-right: 4px; vertical-align: -2px; }
.login-demo {
  margin-top: 12px;
  width: 100%;
  border-collapse: collapse;
  font-size: 11.5px;
}
.login-demo th {
  text-align: left;
  padding: 5px 8px;
  font-weight: 600;
  color: var(--text-tertiary);
  border-bottom: 0.5px solid var(--border);
}
.login-demo td { padding: 5px 8px; color: var(--text-secondary); }
.login-demo tbody tr:hover { background: var(--bg-elevated); }
.login-demo code {
  font-size: 11px;
  padding: 1px 5px;
  background: var(--bg-elevated);
}