* { box-sizing: border-box; }

    body {
      margin: 0;
      min-height: 100vh;
      min-height: 100dvh;
      display: grid;
      place-items: center;
      font-family: Arial, sans-serif;
      background:
        radial-gradient(circle at 16% 14%, rgba(39, 72, 132, .10), transparent 38%),
        linear-gradient(135deg, #0c1629 0%, #182236 100%);
      padding: 20px;
      color: #0f172a;
    }

    .login-card {
      width: 100%;
      max-width: 430px;
      background: #fff;
      border: 1px solid rgba(226, 232, 240, .9);
      border-radius: 22px;
      padding: 30px 30px 31px;
      box-shadow: 0 26px 76px rgba(0, 0, 0, .30);
    }

    .login-title {
      margin: 0 0 8px;
      font-size: 28px;
      line-height: 1.15;
      color: var(--admin-text);
      text-align: center;
      font-weight: 850;
    }

    .login-subtitle {
      margin: 0 0 22px;
      color: var(--admin-text-soft);
      text-align: center;
      line-height: 1.5;
    }

    .login-field {
      margin-top: 16px;
    }

    .login-label {
      display: block;
      margin: 0 0 7px;
      font-weight: 800;
      color: var(--admin-text);
      font-size: 14px;
    }

    .login-input {
      width: 100%;
      min-height: 48px;
      padding: 0 14px;
      border: 1px solid var(--admin-border-strong);
      border-radius: 13px;
      font-size: 16px;
      outline: none;
      background: #edf3fc;
      color: var(--admin-text);
      transition: border-color .18s ease, box-shadow .18s ease, background .18s ease;
    }

    .login-input:focus {
      border-color: #93c5fd;
      background: #fff;
      box-shadow: 0 0 0 4px rgba(37, 99, 235, .12);
    }

    .login-submit {
      width: 100%;
      min-height: 48px;
      margin-top: 22px;
      border: 0;
      border-radius: 13px;
      padding: 0 16px;
      font-size: 16px;
      font-weight: 850;
      cursor: pointer;
      color: #fff;
      background: #2d6be8;
      transition: background .18s ease, transform .18s ease;
    }

    .login-submit:hover {
      background: #245bd0;
      transform: translateY(-1px);
    }

    .login-submit:focus-visible {
      outline: 3px solid rgba(96, 165, 250, .48);
      outline-offset: 3px;
    }

    .login-error {
      margin-top: 14px;
      padding: 12px 14px;
      border-radius: 12px;
      background: #fee2e2;
      color: #991b1b;
      font-size: 14px;
      line-height: 1.45;
    }

    .login-hint {
      margin-top: 16px;
      font-size: 13px;
      color: var(--admin-text-muted);
      text-align: center;
    }

    @media (max-width: 520px) {
      body {
        place-items: center;
        padding: 16px;
      }

      .login-card {
        max-width: 410px;
        border-radius: 19px;
        padding: 26px 24px 27px;
      }

      .login-title {
        font-size: 25px;
      }
    }