/* 登录页：与管理端同字体 / 同品牌蓝，仅负责布局 */

body.login-page {
  min-height: 100%;
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  overflow-y: auto;
}

.login-stage {
  --mx: 0;
  --my: 0;
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(340px, 0.9fr);
  transition: opacity 0.4s ease;
}
.login-stage.is-exit {
  opacity: 0;
}

.login-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(36px, 6vw, 72px);
  color: #fff;
  background:
    radial-gradient(900px 420px at 12% -8%, rgb(var(--brand) / 0.55), transparent 55%),
    radial-gradient(700px 380px at 92% 100%, rgb(var(--brand2) / 0.35), transparent 52%),
    linear-gradient(165deg, #0b1c33 0%, #07111f 55%, #050b14 100%);
}

.login-hero-visual {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}
.login-hero-wash {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 20% 20%, rgb(var(--brand) / 0.35), transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 70%, rgb(var(--brand2) / 0.18), transparent 55%);
  transform: translate3d(calc(var(--mx) * 10px), calc(var(--my) * 8px), 0);
}
.login-hero-grid {
  position: absolute;
  inset: -15%;
  background-image:
    linear-gradient(rgb(255 255 255 / 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgb(255 255 255 / 0.06) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: radial-gradient(ellipse 70% 60% at 45% 50%, #000 15%, transparent 75%);
  opacity: 0.45;
  transform: perspective(900px) rotateX(58deg) scale(1.3)
    translate3d(calc(var(--mx) * 6px), calc(var(--my) * 4px), 0);
  transform-origin: center 35%;
}

.login-hero-copy {
  position: relative;
  z-index: 1;
  max-width: 18em;
}
.login-hero .top-bar-eyebrow {
  color: rgb(255 255 255 / 0.72);
  margin-bottom: 14px;
}
.login-title {
  margin: 0;
  font-size: clamp(36px, 5vw, 52px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: #fff;
}
.login-lead {
  margin: 16px 0 0;
  font-size: 15px;
  line-height: 1.65;
  color: rgb(255 255 255 / 0.72);
  max-width: 16em;
}

.login-shell {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  padding: clamp(24px, 4vw, 48px);
  transition: transform 0.4s var(--ease), opacity 0.35s ease;
}
.login-shell.is-exit {
  transform: translateY(-12px);
  opacity: 0;
}

.login-panel {
  width: min(400px, 100%);
  padding: 28px 28px 24px;
  border-radius: calc(var(--radius) + 2px);
  box-shadow: var(--shadow-lg);
}
.login-panel-head {
  margin-bottom: 22px;
}
.login-panel-head h2 {
  margin: 0;
  font-size: 24px;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: rgb(var(--text));
}
.login-panel-head .muted {
  margin: 8px 0 0;
  font-size: 14px;
}

.login-form {
  display: grid;
  gap: 14px;
}
.login-form label {
  display: grid;
  gap: 6px;
  font-size: 13px;
  color: rgb(var(--muted));
}
.login-form .field {
  height: 42px;
}
.login-submit {
  position: relative;
  margin-top: 6px;
  width: 100%;
  height: 42px;
  font-size: 15px;
  overflow: hidden;
}
.login-submit:disabled {
  cursor: wait;
  opacity: 0.85;
}
.login-btn-label {
  position: relative;
  z-index: 1;
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.login-btn-spinner {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 18px;
  height: 18px;
  margin: -9px 0 0 -9px;
  border: 2px solid rgb(255 255 255 / 0.35);
  border-top-color: #fff;
  border-radius: 50%;
  opacity: 0;
  transform: scale(0.6);
  transition: opacity 0.2s ease, transform 0.2s ease;
}
.login-submit.is-loading .login-btn-label {
  opacity: 0;
  transform: translateY(4px);
}
.login-submit.is-loading .login-btn-spinner {
  opacity: 1;
  transform: scale(1);
  animation: login-spin 0.7s linear infinite;
}

.login-panel .form-error {
  margin: 0;
}

.login-reveal {
  opacity: 1;
  transform: none;
}
body.login-ready .login-reveal {
  animation: login-rise 0.7s var(--ease) both;
  animation-delay: calc(0.06s + (var(--d, 0) * 0.07s));
}

.login-panel.is-error {
  animation: login-shake 0.48s var(--ease);
}

@keyframes login-rise {
  from {
    opacity: 0.2;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@keyframes login-spin {
  to { transform: scale(1) rotate(360deg); }
}
@keyframes login-shake {
  0%, 100% { transform: translate3d(0, 0, 0); }
  20% { transform: translate3d(-7px, 0, 0); }
  40% { transform: translate3d(6px, 0, 0); }
  60% { transform: translate3d(-4px, 0, 0); }
  80% { transform: translate3d(3px, 0, 0); }
}

@media (max-width: 900px) {
  .login-stage {
    grid-template-columns: 1fr;
  }
  .login-hero {
    min-height: 38vh;
    min-height: 38dvh;
    padding: 28px 24px 32px;
    justify-content: flex-end;
  }
  .login-shell {
    place-items: start center;
    padding: 28px 20px 40px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .login-reveal,
  .login-btn-spinner {
    animation: none !important;
  }
  body.login-ready .login-reveal {
    opacity: 1;
    transform: none;
  }
  .login-shell.is-exit,
  .login-stage.is-exit {
    transition: none;
    opacity: 0;
  }
}