:root {
  --auth-bg: #06131f;
  --auth-panel: rgba(7, 24, 36, .94);
  --auth-panel-soft: rgba(11, 33, 48, .92);
  --auth-line: rgba(85, 207, 222, .24);
  --auth-line-strong: #32cad6;
  --auth-text: #f2f8fb;
  --auth-muted: #9bb3c0;
  --auth-accent: #31d0db;
  --auth-action: #f57a32;
  --auth-danger: #ff8585;
}

.auth-view,
.admin-login {
  min-height: 100vh;
  min-height: 100svh;
  display: grid;
  grid-template-rows: auto 1fr;
  place-items: center;
  gap: 24px;
  position: relative;
  overflow-x: hidden;
  padding: 28px clamp(24px, 6vw, 84px) 40px;
  color: var(--auth-text);
  background: var(--auth-bg) url('https://images.unsplash.com/photo-1518770660439-4636190af475?auto=format&fit=crop&w=2200&q=85') center/cover no-repeat;
  isolation: isolate;
}

.auth-view::before,
.admin-login::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -2;
  background: linear-gradient(115deg, rgba(2, 11, 18, .96), rgba(5, 31, 44, .78));
}

.auth-view::after,
.admin-login::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  opacity: .28;
  background-image:
    linear-gradient(rgba(62, 193, 211, .08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(62, 193, 211, .08) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, transparent, #000 28%, #000 76%, transparent);
}

.auth-brand,
.admin-login-brand {
  width: min(100%, 1120px);
  min-height: 48px;
  position: relative;
  inset: auto;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-self: center;
  gap: 18px;
  padding: 0;
  color: var(--auth-text);
}

.auth-brand img,
.admin-login-brand img {
  width: clamp(88px, 9vw, 116px);
  height: 38px;
  object-fit: contain;
  object-position: left center;
}

.auth-brand > div,
.admin-login-brand > div {
  padding-left: 18px;
  border-left: 1px solid rgba(103, 199, 214, .34);
}

.auth-brand strong,
.auth-brand small,
.admin-login-brand strong,
.admin-login-brand small {
  display: block;
  color: var(--auth-text);
  white-space: nowrap;
}

.auth-brand strong,
.admin-login-brand strong {
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.2;
}

.auth-brand small,
.admin-login-brand small {
  margin-top: 5px;
  color: #7295a7;
  font: 9px/1.2 Consolas, monospace;
}

.auth-panel,
.admin-login form {
  width: min(100%, 470px);
  position: relative;
  z-index: 1;
  align-self: center;
  margin: 0 0 clamp(20px, 6vh, 72px);
  padding: clamp(30px, 4vw, 48px);
  color: var(--auth-text);
  border: 1px solid var(--auth-line);
  border-radius: 8px;
  background: var(--auth-panel);
  box-shadow: 0 28px 80px rgba(0, 0, 0, .48), inset 0 1px rgba(255, 255, 255, .03);
  backdrop-filter: blur(18px);
}

.auth-panel::before,
.admin-login form::before {
  content: '';
  position: absolute;
  top: -1px;
  left: 32px;
  width: 92px;
  height: 2px;
  background: var(--auth-accent);
  box-shadow: 0 0 18px rgba(49, 208, 219, .55);
}

.auth-panel .eyebrow,
.admin-login form .eyebrow {
  margin: 0 0 12px;
  color: var(--auth-accent);
  font: 700 10px/1.2 Consolas, monospace;
  letter-spacing: 1.2px;
}

.auth-panel h1,
.admin-login h1 {
  margin: 0;
  color: var(--auth-text);
  font: 700 clamp(26px, 4vw, 32px)/1.25 "Microsoft YaHei", sans-serif;
  letter-spacing: 0;
}

.auth-panel > p:not(.eyebrow),
.admin-login form > p:not(.eyebrow) {
  margin: 10px 0 28px;
  color: var(--auth-muted);
  font-size: 13px;
  line-height: 1.7;
}

.auth-panel label,
.admin-login label {
  display: grid;
  gap: 8px;
  margin: 0 0 17px;
  color: #cfdee5;
  font-size: 13px;
  font-weight: 700;
}

.auth-panel input,
.admin-login input {
  width: 100%;
  min-height: 48px;
  padding: 0 14px;
  color: var(--auth-text);
  caret-color: var(--auth-accent);
  border: 1px solid #285066;
  border-radius: 4px;
  background: var(--auth-panel-soft);
  box-shadow: inset 0 1px 4px rgba(0, 0, 0, .24);
  outline: none;
}

.auth-panel input::placeholder,
.admin-login input::placeholder {
  color: #607f90;
  opacity: 1;
}

.auth-panel input:hover,
.admin-login input:hover {
  border-color: #3a6d83;
}

.auth-panel input:focus,
.admin-login input:focus {
  border-color: var(--auth-line-strong);
  box-shadow: 0 0 0 3px rgba(49, 208, 219, .12), inset 0 1px 4px rgba(0, 0, 0, .2);
}

.auth-panel .primary-button,
.admin-login form > .primary-button {
  width: 100%;
  min-height: 48px;
  margin-top: 7px;
  color: #fff;
  border: 1px solid #ff975a;
  border-radius: 4px;
  background: var(--auth-action);
  box-shadow: 0 10px 24px rgba(245, 122, 50, .2);
  font-size: 14px;
  font-weight: 800;
}

.auth-panel .primary-button:hover,
.admin-login form > .primary-button:hover {
  border-color: #ffae7d;
  background: #ff8841;
}

.auth-panel .primary-button:focus-visible,
.admin-login form > .primary-button:focus-visible,
.auth-switch:focus-visible,
.admin-login form > a:focus-visible {
  outline: 2px solid var(--auth-accent);
  outline-offset: 3px;
}

.auth-switch,
.admin-login form > a {
  display: block;
  width: 100%;
  margin: 16px 0 0;
  padding: 7px;
  color: var(--auth-accent);
  border: 0;
  background: transparent;
  text-align: center;
  font-size: 13px;
  font-weight: 700;
  text-decoration: none;
}

.auth-switch:hover,
.admin-login form > a:hover {
  color: #87eef4;
}

.auth-error,
#adminLoginError {
  min-height: 20px;
  display: block;
  margin-top: 10px;
  color: var(--auth-danger);
  text-align: center;
  font-size: 12px;
  line-height: 1.5;
}

@media (max-width: 640px) {
  .auth-view,
  .admin-login {
    grid-template-rows: auto 1fr;
    align-items: start;
    gap: 22px;
    padding: 20px 16px max(20px, env(safe-area-inset-bottom));
    background-position: 58% center;
  }

  .auth-brand,
  .admin-login-brand {
    min-height: 40px;
    gap: 13px;
  }

  .auth-brand img,
  .admin-login-brand img {
    width: 82px;
    height: 30px;
  }

  .auth-brand > div,
  .admin-login-brand > div {
    padding-left: 13px;
  }

  .auth-brand strong,
  .admin-login-brand strong {
    font-size: 16px;
  }

  .auth-brand small,
  .admin-login-brand small {
    font-size: 8px;
  }

  .auth-panel,
  .admin-login form {
    align-self: start;
    margin: 0;
    padding: 28px 22px 24px;
  }

  .auth-panel h1,
  .admin-login h1 {
    font-size: 26px;
  }

  .auth-panel > p:not(.eyebrow),
  .admin-login form > p:not(.eyebrow) {
    margin-bottom: 23px;
    font-size: 12px;
  }
}

@media (max-height: 690px) and (min-width: 641px) {
  .auth-view,
  .admin-login {
    gap: 14px;
    padding-top: 18px;
    padding-bottom: 18px;
  }

  .auth-panel,
  .admin-login form {
    margin-bottom: 0;
    padding-top: 28px;
    padding-bottom: 24px;
  }

  .auth-panel > p:not(.eyebrow),
  .admin-login form > p:not(.eyebrow) {
    margin-bottom: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .auth-view *,
  .admin-login * {
    scroll-behavior: auto;
    transition: none !important;
  }
}